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revision 1.10 by cnh, Wed Jul 8 15:40:09 1998 UTC revision 1.1125 by dimitri, Mon Jun 15 23:42:25 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
8      of salt_plume package in Southern Ocean
9    o pkg/thsice:
10     - fix hOceMxL in overlap (needed for sea-ice advection);
11       update output of experiment global_ocean.cs32x15.icedyn.
12    o pkg/seaice:
13     - make the (placeholder-)tracer IceAge a little more meaningful
14      by avoiding ridging of age due to convergent ice flow
15     - add diagnostics for surface temperature
16    
17    checkpoint61p
18    o eesupp (global_max & global_sum):
19     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
20     - remove starting & endding barrier (no longer needed)
21    o pkg/mdsio, writelocal:
22       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
23       (remove the STOP): uses shared buffer IO to store data from all threads
24       and then let master-thread write nThreads tiles.
25    o pkg/mdsio (read/write field):
26     - tiled IO done in 1 piece (all levels at a time);
27     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
28     - multi-threaded: allow to read/write local (non-shared) array
29       (was already working with singleCpuIO ; now works also without);
30       => no longer needs barrier call after reading a file (added inside
31       mds_read/write field).
32     - move barrier calls outside gather/scatter_2d to mds_read/write_field
33    o pkg/obcs/exf
34      - exf_getffieldrec.F: add a few ". _d 0" and
35                            add code to catch the case fldperiod = 0.  
36      - obcs_precribe_read.F: change if statements so that they match
37                              the variable type (_RL)
38      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
39        exf_iprec) as part of namelist EXF_NML_01
40    o pkg/mdsio:
41      - read/write tiled (local) files: read/write 1-level tile chunk at a time
42        (instead of segment of length sNx); expected to speed up tiled IO.
43    o pkg/exch2:
44      - take buffer copy from/to array out of S/R exch2_send/recv into new
45        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
46        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
47      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
48      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
49        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
50        including Topology header file (and common blocks).
51      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
52        remove 2nd exch call in exch2_s3d_rx (no longer needed).
53      - document S/R arg. list (+ update some comments)
54    o pkg/seaice:
55      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
56        temperature and humidity over sea ice based on climatological values.
57      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
58        of LSR (this change is expected to change the results slightly because now
59        it uses slightly difference moduli from the second last LSR solution, but
60        that is more consistent with the stress computations; this part of the code
61        is not tested in the verification experiments)
62      - fix diagnostics for flux of ice in case of B-grid
63      - turn strain rates eij and press into global fields within global
64        common block in SEAICE.h for more straighforward diagnostics
65      - fix diagnostics for principal stress components, press, zeta, eta
66        to give something meaning full
67    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
68      new output (all 4 tests) using default rotationPeriod.
69    o pkg KPP:
70      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
71      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
72        and normal grid from 1 to Nr)
73    o Fix computations of L4rdt in mom_calc_visc.F
74    o eesupp:
75      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
76      should be called before a "stop" if we know that all process are going
77      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
78    
79    checkpoint61o
80    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
81    o model/src/ini_curvilinear_grid.F:
82       compute angleSin/CosC when they are not read from a file
83    o pkg/seaice:
84       add pseudo time stepping for LSOR
85    o pkg/exch2:
86       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
87    o pkg/seaice:
88       Adding separate sea ice albedo, drag coefficients, and HO in Southern
89       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
90    o SingleCpuIO:
91       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
92    o pkg/seaice:
93       put exchanged variable in (local) common block for MPI+Multi-Threads
94       to work (necessary with exch1, and for now with exch2 too).
95    o verification: to get more experiments tested with mpi, mth and mpi+mth,
96      change tiling of:
97       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
98       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
99      update output of exp:
100       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
101       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
102      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
103                       (note: output.txt generated on faulks using only 1 tile)
104    o eesupp & mdsio (SingleCpuIO):
105     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
106       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
107       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
108     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
109     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
110       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
111    o pkg/exch2:
112     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
113       read parameter file "data.exch2" if it exists; otherwise try default regular
114       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
115     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
116       with new code (not to be used, just as a backup solution).
117     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
118       in utils/exch2/input.
119    
120    checkpoint61n
121    o eesupp & mdsio (SingleCpuIO):
122      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
123        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
124        receive real*4 array (instead of real*8) to read/write 32.bit files.
125        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
126         and remove new mapping S/R)
127    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
128      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
129        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
130        when using exch2. Add S/R to map global io-buffer to global model array.
131      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
132    
133    checkpoint61m
134    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
135      and add 3 other S/R for other types (R4,R8,RS).
136      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
137    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
138     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
139     - reduce number of macro definitions (keep only those which are used);
140       can always call directly the corrresponding S/R if needed.
141     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
142       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
143     Fixed wrong type of arg in:
144       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
145       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
146     To fix: global_sum of var in common block is wrong (multi-threaded) in:
147       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
148     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
149    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
150      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
151    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
152    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
153      edges are closed (zero depth); might happen with "blank tiles";
154      for now, disabled if using OBCS.
155    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
156      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
157    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
158      to reduce length of 1.D array print in STDOUT.
159    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
160      + use 48 tiles (16x8): this will allow to test "blank tiles".
161    o start to test MPI + multi-threaded (change testreport to skip tests
162      where number of tiles do not match).
163    o genmake2: add option "-omp" to turn on Open-MP ;
164      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
165    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
166      and keep the original tile numbering. Note: compatible with old
167      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
168    
169    checkpoint61l
170    o Overlaps had been forgotten in calculating ijk keys : fixed
171    o fix cyrus makedepend for gcc 4.4
172    o experiment fizhi-cs-aqualev20:
173      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
174      and generate new output. Note: new output is much closer to the old
175      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
176      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
177    o pkg/fizhi:
178     - change to avoid indices going deliberately over array-bounds
179     - remove unnecessary MPI stuff
180     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
181     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
182       does not go over array-bounds and therefore returns reliable output.
183     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
184       this S/R has 4 output arguments, which are used inside "get_alarm";
185       when it is called with the same variable "ndum" in place of several
186       output arguments, this produces weird side effect inside "get_alarm"
187      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
188       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
189       address) and produces error.
190    o tools/gemake2: (March 27-29 2009)
191      with option "-mpi": link *_mpi files from "MODS" dir (this is what
192      testreport does).
193    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
194    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
195       update lab_sea.lsr & lab_sea.salt_plume results
196    o pkg/seaice:
197      Major overhaul of the LSOR solver: change discretization from original
198      finite differences to finite volume. The old routine is still in the
199      file seaice_lsr.F and can be turned on with the CPP-flag
200      SEAICE_OLD_AND_BAD_DISCRETIZATION
201      Along with this change, the discretization of the strain rates is changed.
202      The same flag turns on the old discretization in seaice_calc_strainrates.F
203      All verification experiments with seaice are affected (except for
204      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
205      results by setting the above flag.
206      Further changes involve changes in defaults:
207      - ALLOW_FLOODING is defined and turned on by default
208      - SEAICEadvSnow = .true. is now the default
209      - SEAICEadvSalt = .true. is now the default
210      - SEAICEadvAge  = .true. is now the default
211      - SEAICE_clipVelocities  = .false. is now the default
212                                         (as per J. Zhang's recommendation)
213      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
214        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
215      - seaice_growth: replace computation of UG by a simple copy from wspeed
216    
217    checkpoint61k
218    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
219      seaice_lsr: fixed a few metric terms,
220                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
221                  add more debugging diagnostics
222      seaice_evp: removed superfluous many metric terms of FV discretization
223                  of stress divergence
224                  affects lab_sea, lab_sea.hb87
225      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
226                  of stress divergence for non-evp solver
227                  (this part is not tested anywhere)
228      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
229                  they were effectively only half slip
230                  affects lab_sea.hb87
231      updated all relevant verification experiments (except lab_sea//output_adm.txt
232        which was left over, but fails at level 7 & 6)
233    
234    checkpoint61j
235    o pkg/seaice: turn a few hard wired parameters into run time parameters
236    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
237      time in seconds as promised by the usints in seaice_monitor and exf_monitor
238    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
239      that are not cubed-sphere grids
240    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
241    o pkg/ctrl:
242      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
243    o non-hydrostatic (calc_gw.F):
244      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
245      update output of exp. global_ocean.cs32x15.viscA4
246    o remove backward compatibility for thetaMin,phiMin
247      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
248    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
249      interpolated wind field not only for curvilineargrid=.true., but also
250      for a rotated grid (rotateGrid=.true.)
251    o pkg/exf: add capability to bypass interpolation for runoff
252      by setting yet another CPP-flag
253    o eesupp/src, B-grid exchange:
254      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
255    o autodiff
256      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
257      allows to switch to single-prec common blocks;
258      corresponding switch occurs in tamc.h, integer isbyte
259      TAF store directivs "byte" and "kind" seem equivalent;
260      Most tamc.h have been updated correspondingly.
261    
262    checkpoint61i
263    o autodiff:
264      fix autodiff_sore/_restore indices for obcs
265      (spotted by I. Hoteit, M. Mazloff)
266    o pkg/autodiff, pkg/ctrl:
267      Add flag to reduce all tapelev I/O to single-prec.
268      In data.ctrl set
269        doSinglePrecTapelev = .TRUE.
270    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
271      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
272    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
273      real fresh water flux (not yet)
274    o pkg/mdsio & rw:
275     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
276     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
277    o pkg/flt:
278     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
279       init_fixed & ini_varia.
280     - clean-up & simplify linear interpolation S/R:
281       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
282     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
283     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
284     - add vert. coordinate & horiz. indices to output files.
285     - change vertical position in initial condition, from index to depth [m].
286     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
287       (easier to get to a curvilinear grid) ; delX,delY no longer used.
288    o pkg/ggl90: a few modifications:
289     - fix bottom boundary condition, and interpolation of KappaE
290       near top and bottom
291     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
292     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
293     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
294    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
295      (maintain temporary backward compatibility, until next checkpoint)
296    
297    checkpoint61h
298    o pkg/diagnostics with "periodic averaging diagnostics":
299      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
300    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
301    o pkg/obcs: fix loop ranges for balancing code
302    o pkg/flt:
303     - improve criteria for finding which tile owns a float.
304     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
305    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
306      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
307      with ocean biogeo)
308    o pkg/flt:
309     - do some cleaning and fix the restart ;
310     - add output.txt in flt_example/results to get this pkg tested.
311    o genmake2: add an EXTENDED_SRC option and flag.
312       for now, cannot be turned on on command line (only through genmake_local)
313    o pkg/mdsio: read/write vector:
314     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
315     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
316       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
317     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
318      (drop to 4 digits matching for grad). But this test does not look very
319      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
320    
321    checkpoint61g
322    o pkg/flt:
323      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
324       + make OPTIONS file more standard.
325      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
326      - fix _BYTESWAPIO CPP-Flag
327      - standard reading of file-parameter "data.flt"
328      - fix argument list of S/R FLT_RESTART
329      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
330    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
331    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
332      a still unfixed compiler/optimization bug
333    
334    checkpoint61f
335    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
336      update results of global_ocean.cs32x15.icedyn test.
337    o move getcon.F from model/src to pkg/fizhi.
338    o pkg/exf: add parameter for extrapolation of temp up to the surface
339       and option to prevent negative evap (in bulk_largeyeager04 only).
340    o Prather Advection scheme: fix tracer conservation for divergent flow
341      (e.g., when using NonLin Free-Surface).
342    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
343    o gmredi (Visbeck-variable-K):
344     - add more parameters to Visbeck-variable-K.
345     - use a 5 points average for dSigmaR in Visbeck-K calculation
346       (more "homogenous": same stencil and same weights as in dSigmaH)
347     - update output of ideal_2D_oce experiment.
348    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
349      (#undef REAL4_IS_SLOW)
350     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
351       coordinate variable
352     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
353       (surface forcing fields), removes some of the functionality
354     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
355     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
356       probably not all: copy _RS surface flux fields to RL field before
357       calling DIAGNOSTICS_FILL
358     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
359       real*4 (CALL EXCH_*_RS) versions.
360     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
361       (generate new output).
362    
363    checkpoint61e
364    o gmredi (Visbeck-variable-K):
365      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
366      - change computation of Visbeck-K where Slope > Smax :        
367        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
368        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
369    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
370      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
371    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
372    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
373      does not become too large (to avoid precision problems in implicit-diffusion
374      solver); update ideal_2D_oce output.
375    o pkg ggl90:
376      - in ggl90_cal.F: compute only one set of visc/diff, used to
377        step forward TKE/T/S/momentum
378      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
379        have Prandlt =1)
380    o gmredi (fm07):
381      - add lower limit on Transition layer thickness + lower limit on 1/lambda
382      - allow to set few more params from data.gmredi
383    o pkg ggl90:
384          - add missing sqrt(2) factor in computation of mixing length
385            scale in ggl90_calc.F
386            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
387    
388    checkpoint61d
389    o adjoint modifs
390      - adapt to new field rhoInSitu
391      - allow to revert from StoreDynVars2D, StoreDynVars3D
392        to individual fields
393        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
394    o store 3-D (in-situ) density in commom block (DYNVARS.h)
395     - save 1 rho computation.
396     - no longer modify T & S inland when using down_slope pkg.
397    o gad_som : allow to switch to SOM advection for T & S without corresponding
398      pickup files (using new S/R: MDS_CHECK4FILE).
399    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
400      (for useSingleCpuIO to work in multi-threaded)
401    o pkg/shelfice:
402     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
403       with SHELFICEtopoFile in data.shelfice
404     - move code for reading ice shelf topography and modifying hFacC into separate
405       subroutines of the shelfice package
406     - separate initialisation of "fixed" and "variable" variables
407     - kTopC is not (yet) replaced by kSurfC, although this is possible
408    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
409    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
410      and rename:
411      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
412      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
413    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
414    
415    checkpoint61c
416    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
417      to add mass source/sink of fluid in the interior (3-D generalisation
418      of oceanic real-fresh water flux).
419    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
420    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
421    o new pkg: down_slope
422      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
423      - presently, modify T & S inland (dwnslp_calc_rho.F).
424        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
425      - implementation for ocean in P-coords not tested.
426      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
427    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
428      (to facilitate conversion of oceanic pkg to p-coordinate).
429    o change FIND_RHO to FIND_RHO_2D :
430      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
431    o new pkg: cheapaml
432    
433    checkpoint61b
434    o exch2:
435      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
436      - no longer depend on the order sequence (N,S,E,W).
437      - 3rd exchange no longer needed (tested with 24 tiles).
438      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
439      - exch_UV_A-grid readily available (but not yet tested).
440      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
441      (both are no longer needed) in exch_uv: no effect in forward run; but
442       get truncation error differences with adjoint exch.
443    o exch2:
444     - change index-bounds storage (moved from target to local tile,
445       more intuitive this way) ; rename/remove some variables.
446     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
447    
448    checkpoint61a
449    o exch2/matlab-topology-generator:
450      fix bug in index bounds for N-S internal exchange (hard to tell if this
451      had any effect on the solution).
452    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
453      is exceeded
454    o testreport: modify syntax of awk, so that it works also with
455      awk, and not only with nawk and gawk
456    
457    checkpoint61
458    o autodiff
459      Change default for TAF usage by removing argument '-nonew_arg'
460      This changes TAF subroutine argument list (ordering of active var.)
461      Omission of this flag leads to incompatibility w.r.t. TAMC
462      To restore TAMC-compatibility, need following modifs:
463      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
464      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
465      Tested TAF version is 1.9.22
466      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
467    
468    checkpoint60
469    --->>> This is the last checkpoint for which generating the adjoint
470    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
471    --->>> by default.
472    --->>> Future checkpoints will ommit this flag by default.
473    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
474    o pkg/grdchk: Add gradient check to etan0 perturbations.
475    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
476    o pkg/autodiff: more flexibility in zeroadj.
477      model/src: modifying do_oceanic_phys.F accordingly.
478    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
479    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
480      special setup of gmredi for which the adjoint is stable
481      enough for parameter optimization.
482    o bridging the gap between eddy stress and GM.
483      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
484          along with a change in CPP option (now ALLOW_EDDYPSI).
485      -> when using GM w/ GM_AdvForm:
486          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
487          is applied either in the tracer Eq. or in momentum Eq.
488          depending on data.gmredi (intro. GM_InMomAsStress).
489      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
490      The key modifications are in model/src/taueddy_external_forcing.F
491      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
492    
493    checkpoint59r
494    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
495      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
496      fix option to read coriolis(@ cell-corner) from files with CS-grid.
497    o pkg/mnc: add some attributes to standard 1D-coordinate variables
498    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
499      mass points, when using mnc for output
500      - add runtime parameter (missing_value, missing_value_int) to override
501        default (which is the value of getcon('UNDEF'))
502    o pkg/mnc: prepare mnc for the actual use of missing values with the
503      diagnostics package: small fix in mnc_cw_readwrite.template and more
504      initialisation of never used fields
505      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
506      versions
507    o pkg/thsice/thsice_ini_vars.F added default initial values so that
508      thermodynamics sea ice solver does not blow up when some initial fields
509      are missing.
510    o move from external_forcing_surf.F to ini_forcing.F
511      the p-coord. hack consisting in using pLoad to set phi0surf ;
512      update output of tutorial_global_oce_in_p (affected @ truncation level).
513    o Freshen up a bit hs94.1x64x5, notably:
514      remove rotationPeriod and tRef=5*0. (adjoint only), and add
515      exactConserv=.TRUE.
516    o pkg/generic_advdiff:
517      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
518      applies to files where Temperature & Salinity 2nd Order moments are used.
519    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
520      this uses a dynamically allocated internal state data structure
521      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
522      and requires a fortran 90 compiler
523    
524    checkpoint59q
525    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
526       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
527    o Refresh tutorial_global_oce_biogeo, notably:
528      - change bathymetry (put back seamounts in ACC, use hFacs)
529      - change EOS (POLY3 --> JMD95Z)
530      - use Bryan-Lewis vertical diffusivity
531      - use multidimensional advection
532      - remove old virtual virtual in dic pkg, now done through ptracer pkg
533      - change a couple of parameters in dic pkg
534    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
535    o pkg/obcs: change default to OBCSfixTopo = .true.,
536      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
537      - replace "debugMode" with "debugLevel .GE. debLevB"
538    o implementation of TAF directives for gchem,cfc,dic
539    o remove "exp5" (replaced by tutorial_deep_convection).
540    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
541      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
542      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
543      --> changes results in exp4, seaice_obcs
544    o tutorial_deep_convection :
545      update the set-up and increase resolution and domain size ; start
546      from pseudo initial conditions = output at t=120mn in order to see
547      something happening when running testreport.
548    o pkg/seaice: add os7mp as an advection scheme
549                  add check for advection schemes
550                  add a flag for restoring T and S underneath sea ice
551    o pkg/my82: add netcdf-support and diagnostics
552    o thsice pkg:
553      - Now hsMax limits snow height by turning it into ice following
554        flooding scheme (and now conserving energy)
555      - Slight rewriting of the formula in thsice_calc_thick.F
556      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
557      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
558    
559    checkpoint59p
560    o gchem / dic / cfc :
561      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
562      - add new parameter files: "data.dic" & "data.cfc" ;
563      - various re-arrangement in initialisation & header file ;
564      - fix tutorial_global_oce_biogeo for multi-threaded test.
565    o pkg/dic: test for "pickup_dic" file when restarting ;
566      if no pickup-file, can restart with a re-initialised pH (same as it did
567      before) providing pickupStrictlyMatch is set to False.
568    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
569      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
570    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
571      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
572    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
573     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
574       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
575    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
576       scheme to use for vorticty-term ;
577     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
578       (with default selectVortScheme, return to original discretisation)
579     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
580    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
581    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
582      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
583      also fix diagnostics VISCAHW & VISCA4W.
584    
585    checkpoint59o
586    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
587    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
588      move a few statemens out the main loop into separate loops
589    o pkg/shelfice:
590      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
591        (kg/m^2/s), does not break tests, because in verification/isomip,
592        rhoConstFresh=rhoConst (by accident)
593      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
594      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
595        new file model/src/seawater.F, so that they are available for all pkgs.
596      - convert potential temperature into in-situ temperature. This changes the
597        isomip tests => update tests
598    o add a flag writePickupAtEnd (default=true) to be able to suppress
599      writing a pickup at the last timestep
600    o tools/mpack-1.6 :
601      - disable automake (not working) and autoconf (not needed).
602      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
603        also cleaner with much less compilation warnings.
604    o pkg/profiles:
605      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
606      (for "less than 32 characters name" compiler requirement)
607    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
608      conditions that have a different sampling frequency than S/T/U/V obcs
609    o pkg/diagnostics (stats-diags):
610      - fix global Min/Max in case 1 processor get only empty tiles
611    o genmake2: replace (4 times)
612         make genmake_tc_1.o >> genmake_warnings 2>&1
613      with
614         COMM="$CC $CFLAGS -c genmake_tc_1.c"
615         echo $COMM >> genmake_warnings
616         $COMM >> genmake_warnings 2>&1
617      to make genmake2 always see the value of CC as specified in the optfile.
618    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
619      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
620      - modify verification advect_cs test to test SOM-advection on CS-grid.
621    o pkg/ctrl:
622      - Rewrite of ctrl_map_ini_ecco.F,
623        introducing a generic routine (ctrl_map_ini_gen.F).
624      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
625    
626    checkpoint59n
627    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
628      number in dedicate array "hdiag":
629      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
630        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
631      - many small changes (integer format) for large number of diagnostics
632      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
633        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
634    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
635      usingSphericalGrid, this allows to define the rotated grid coordinates
636      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
637      geographical coordinates according to the inverse of the rotation defined
638      by the Euler angles, so that Coriolis parameter and online-interpolation by
639      exf works with the geographical coordinates on XC/YC/XG/YG.
640      Naturally, this feature does not work with all packages, so some
641      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
642      profiles), because there the coordinates are assumed to be regular
643      spherical grid coordinates.
644    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
645      - introduce isopycnal diffusion coefficient control.
646    o tools/adjoint_options:
647      - additional control vector components.
648    o pkg/mnc: have mnc create marginally meaning full coordinate variables
649      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
650    o pkg/mypackage:
651      - add example of read/write pickup for state-var ;
652      - add entry points to the main code for state-vars diags & write-pickup.
653    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
654      transitions for useExfYearlyFields
655      - add new subroutine that determines the file to read from for
656        use*YearlyFields = .TRUE. and .FALSE.
657      - add a verification experiment to global_with_exf that tests
658        useExfYearlyFields with USE_EXF_INTERPOLATION defined
659    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
660      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
661      subroutines (which could be generated from a template, because they are
662      almost identical), for now they are included in obcs_prescribe_read.F for
663      simplicity
664    o pkg/exf:
665      - add a little more diagnostic to exf_interp_read (in analogy to
666        mds_read_field, can be turned off with debugLevel < debugLevA=1)
667      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
668        ugly but fast by unrolling short inner loops, inserting a unroll=8
669        directive in routine lagran, and splitting a loop and making do while the
670        outermost loop (the latter requires the intoduction of index arrays)
671    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
672    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
673      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
674    o verification/seaice_obcs: updated for restart test and latest options
675    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
676      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
677      for now this is only available for the C-grid code and also within
678      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
679    
680    checkpoint59m
681    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
682      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
683    o gad_som : fix flux output (& diagnostics) to have same units as other  
684      advection scheme fluxes (was previously multiplied by deltaT).  
685    o added verification/seaice_obcs both to test seaice open boundaries
686      and to provide an example matlab scrpt for generating them
687    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
688    o pkg/salt_plume: clean up salt_plume_frac.F to
689      remove redundancy in PlumeMethod 1 and 4
690    o pkg/kpp: added saltplume diagnostics
691    o pkg/obcs and pkg/seaice:
692      - do not set uice and vice to zero when OB*icefile are unspecified
693      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
694      - moved seaice tracer obcs after call to seaice_growth
695    o pkg/salt_plume: added various options for salt plume depth
696      criterion and for vertical distribution of the salt
697    
698    checkpoint59l
699    o pkg/ptracers: new version of ptracers pickup:
700      read meta file and write only fields which are needed to restart.
701      ( same logic as main pickup file ; also using pickupStrictlyMatch )
702    o pkg/seaice:
703      - add timescale for melting due to warm mixed layer as a means of
704        setting SEAICE_availHeatFrac more conveniently
705      - add a CPP-flag/runtime parameter check for flooding algorithm
706      - reformulated availHeat in seaice_growth.F to be independent of AREA
707    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
708      unit changes
709    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
710    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
711      SX vector computer.
712    o pkg/seaice:
713      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
714        seaice forcing fields can now be read only through pkg/exf
715      - removed some unused halos
716    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
717    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
718      or U/VICE from U/VWIND before computing U/VSTRESS
719    
720    checkpoint59k
721    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
722      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
723    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
724      all experiments pass when compile with un-initialised var. checking option.
725    o added pkg/salt_plume
726    o script to test restart (for now, in MITgcm_contrib/jmc_script)
727    o pkg/seaice: new read/write pickup version.
728      read meta file and write only fields which are needed to restart.
729      ( same logic as main pickup file ; also using pickupStrictlyMatch )
730    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
731    o lab_sea.hb87: modify the domain & update output.hb87.txt :
732      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
733      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
734      process. Fixed here by closing the domain at the Northern boundary.
735    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
736    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
737      a set of consecutive levels in/from a 3-D array.
738    o pkg/ptracers:
739      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
740      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
741    
742    checkpoint59j
743    o in pkgs: dic, obcs, offline, rbcs:
744      standard way to compute coeff. for time interpolation between 2 time reccords
745      which retains full precision (& make results less dependent on compiler).
746      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
747    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
748      packages instead of reading ice cover and wind speed separately
749    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
750     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
751      to allow to compile customized code before the update)
752    o cleaning-up:
753      - fix CPP instruction syntax in pkg/obcs
754      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
755        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
756      - fix some threads issue in IO parts.
757    o pkg/dic:
758      - add tons of "_d 0" (--> much better testreports !)
759       and then update outputs of tutorial_global_oce_biogeo
760    o pkg/mom_fluxform:
761      add a special version of momentum advection intended to conserve momentum
762      next to a bathymetry step or a coastline edge. (default = off = #undef)
763    o new read/write pickup version:
764      - for now, only implemented for main (mdsio) pickup file.
765      - write out only what is needed to restart; merge pickup_nh , pickup_ph
766        and main pickup together.
767      - read meta file; read only what is needed to restart; stop if a field
768        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
769        if it make sense (even if the restart is not perfect).
770      - if no meta file, assume that pickup to read corresponds exactly to
771        a pickup that would currently be written.
772      - read pickup written in the old format (until checkpoint59i) if it
773        recognizes an old meta file (no field-list).
774      - add a meta file in exp. which starts from a pickup: 2 cases:
775        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
776         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
777        b) a meta file describing the content of the associated pickup file
778         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
779    o pkg/mdsio & pkg/rw:
780      - new routine to read a meta file ; new set of routine to read
781        Multiple-fields file (with meta file).
782    o added open boundary conditions capability for seaice
783        HSNOW, HSALT, UICE, and VICE
784    
785    checkpoint59i
786    o adjoint:
787      * fix multiDimAdvection adjoint
788        (partial recomputation problem by TAF for fVerT(:,:,kDown)
789        and comlev1 size definition (maxpass vs. max. number of tracers)
790      * verification/global_ocean.90x45x15 adjoint now tests
791        NLFS and multiDimAdvection using DST3 (=30)
792      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
793    o pkg/kpp: add "_d 0" to real constant (if missing);
794      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
795      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
796    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
797      for internal parameters related to restart process (formerly from PARAMS.h)
798      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
799    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
800      as argument. (only atm2d & obcs write_pickup have not yet been updated)
801    o pkg/monitor:
802      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
803      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
804      - account for deep Atmosphere factor and density factor (anelastic)
805    o added open boundary conditions capability for seaice HEFF and AREA
806    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
807      thermodynamics
808      - requires a little reorganization, which affects the testreport results
809        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
810        so that now the conservative form is tested
811      - add a few comments
812    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
813    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
814    o add new diagnostics to seaice: advective, diffusive fluxes (only for
815      multidim-advection, for scheme 2 they are not filled) and transports,
816      thermodynamic growth rates
817    o change units of EmPmR (inside the code, + within coupling interface)
818      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
819      Affects results @ truncation level (cg2d match) and update output of
820       experiments: lab_sea(6), global_ocean.90x40x15(10),
821      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
822      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
823      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
824      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
825    
826    checkpoint59h
827    o pkg/exf:
828      - improve vectorization by moving if-statement out of loops in
829        exf_mapfields, exf_radiation
830      - exf_bulkformulae.F: introduce 2D fields and vectorize code
831    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
832    o testreport:
833      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
834        monitor & update offline_exf_seaice exp. output.
835      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
836    o pkg/seaice:
837      - bug fix in the evp solver: boundary conditions were affected be
838        masking of zMax/zMin (changes results)
839      - minor bug fix in boundary conditions in seaice_calc_strainrates
840        (changes results for no_slip)
841      - seaice_lsr.F: make interpolation of eta dependent on boundaries
842      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
843      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
844        stress formulation and no-slip boundary conditions
845    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
846      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
847    o pkg/seaice: a first HSALT time stepping equation has been checked in
848    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
849      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
850      without requiring DO-IF statements
851    o pkg/thsice:
852      use continuous power-law function for partition of energy between lateral
853      melting/freezing and thinning/thickening ; old code using step function
854      still available with #undef THSICE_FRACEN_POWERLAW
855      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
856    o testreport: change AD testing : check against results/output_adm.txt
857      using same scripts as for forward test.
858    
859    checkpoint59g
860    o adjoint testing: in preparation for changing testreport:
861      - output format: cost and grad written on separated lines
862      - ad output results in directory "results" (instead of "results_ad")
863    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
864    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
865    o pkg/ecco: allow user defined cost function contributions
866    o testreport:
867      Allow to choose (per experiment) the list of tested output variables
868       and the main variable (used to issue a pass/FAIL ) ;
869      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
870      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
871      Also modify printing of summary:
872       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
873       b) echo the list of tested variables in the individual summary.txt of
874          each experiment.
875    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
876      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
877      (but still depend on the tile decompostion of the domain).
878    o pkg/seaice: change a discretization detail to make the B-grid code
879      "more symmetric". This change is likely to remove all "ridges/leads" that
880      where quasi-aligned with the grid in B-grid solutions. It may also be
881      the solution to the stress coupling issues with the B-grid.
882    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
883      remove .cvsignore from input dir. (since testreport no longer run here).
884    o pkg/thsice:
885     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
886     - fix reshaping of sea-ice just after advection:
887       melt all the ice only if ice-volume is too small.
888     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
889       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
890     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
891    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
892      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
893    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
894      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
895      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
896      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
897      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
898      -> update output.txt
899    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
900     this affects truncation error: -> update output.txt of exp:
901      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
902      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
903    
904    checkpoint59f
905    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
906    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
907      a bounded range (in forward mode)
908    o pkg/ecco, ctrl, autodiff and mom_common:
909     internal parameter controls, completements of implementations
910    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
911    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
912      (not seem any difference in testing results).
913    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
914       at face corners.
915    o pkg/generic_advdiff:
916     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
917      loop range indices for computing vertical advection tendency
918      and do the calculation in the interior only (no overlap) ;
919      for now, only implemented for SOM advection (to save CPU time).
920     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
921    o exch2 adjoint
922      First set of changes:
923      - add exch2 hand-written adjoint templates
924      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
925        This will require cleanup in pkg/autodiff/*.F
926        (changed routines currently kept separate in verif. code/)
927      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
928        that used to hide exch2 or cubed-sphere specific code
929        (commented via 'cph-exch2')
930    o pkg/seaice
931      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
932    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
933       output of global_ocean.cs32x15.thsice .
934    
935    checkpoint59e
936    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
937      for B-grid vector (not yet tested) and C-grid vector (<- only used
938      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
939    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
940      (#ifdef ALLOW_SALT_PLUME)
941    o gather_2d/scatter_2d: removed halo regions
942    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
943      scheme and the corresponding test case (under front_relax dir). For now,
944      only available with Skew-flux form and not yet tested in realistic set-up.
945      adjoint: store directives updated, but gradient checks deteriorated,
946      so maybe GM/Redi adjoint is now broken.
947    o seaice adjoint
948      * add AREA, HEFF, HSNOW as control variable
949        (should not change lab_sea results)
950      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
951    o pkg/seaice:
952      * added computation of saltFlux in seaice_growth;
953        For time being, sea ice salinity is assumed constant
954        contribution of snow flooding to freshening of sea ice is neglected.
955        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
956        defaults to 0.0 in order to maintain backward compatibility.
957        Typical values for SEAICE_salinity are 4 to 10 g/kg.
958      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
959      * added SEAICE_availHeatFrac, which specifies fraction of surface level
960        heat content used to melt or grow ice
961      * commented out cap of HICE: it helps keep ice thinner
962      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
963      * applied OBCS T/S mask to HEFFM sea ice mask
964    
965    checkpoint59d
966    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
967     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
968     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
969    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
970     and change default value of parameter "GM_Small_Number";
971     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
972       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
973       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
974    o pkg/ecco: cost function when applying pkg/smooth to controls
975    o pkg/ctrl: add forcingPrecond run time parameter
976    o pkg/seaice:
977     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
978     - fix bug in metric terms of u-equation in LSR solver (implicit part),
979       changes verification/lab_sea
980     - rearrange implicit part of u-equation in LSR solver to make it easier to
981       read, understand, and debug. This causes changes at the truncation level.
982     - fix (serious) bug in the boundary conditions (sign error in the implicit
983       part) of the LSR solver. Changes all LSR results.
984     - fixed problem with HSNOW initialization to avoid thick snow when AREA
985       is initilized with small values - does not change lab_sea results.
986     - added HsnowFile initialization capability
987    o pkg/smooth: addition to model/src and pkg/ctrl so allow
988     initialization of pkg/smooth and application to control vector
989    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
990    o dependencies: pkg/profiles requires pkg/cal
991    o pkg/profiles:
992     - added option ALLOW_PROFILES_GENERICGRID
993         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
994         that interpolation information (grid points and coefficients) is provided
995         within the netcdf input files.
996         -> sample matlab scripts can be found in MITgcm_contrib/gael
997         that allow you to prepare netcdf input files.
998     - also modified: cleaner include statements, cleaner error print statements,
999       cleaner stops when error, and more tests of the netcdf input files consistency.
1000    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1001    o pkg/seaice:
1002     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1003       requires a new routine: seaice_diagnostics_fill.F
1004     - make sure that seaice does not move if not forced (pressure replacement
1005       method, Hibler and Ip, 1995), changes results
1006     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1007     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1008       It is turned off by default (=-1.), because it changes the results.
1009     - make it possible to read AREA from a file, too.
1010    
1011    checkpoint59c
1012    o add S/R and diagnostics for oceanic mixed-layer depth
1013    o move GMRedi call after all vertical mixing schemes (including KPP)
1014    o pkg/thsice:
1015     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1016      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1017    o pkg/obcs:
1018     - bug fix for balance code
1019    o pkg/seaice:
1020      - allow values of SEAICE_elasticParm > 1
1021      - add new parameter SEAICE_evpTauRelax as an alternative
1022        to SEAICE_elasticParm
1023      - make lsr boundary conditions free slip (by default), changes result
1024      - add code for no slip boundary conditions for lsr
1025      - set minimum of zeta to zero (and not 4e8) (changes results)
1026      - add a cap on AREA after advecting AREA if seaice_growth is not called
1027    o change calculation of Visbeck K:
1028      - no longer depend on tapering scheme; instead, compute slope (limited
1029        by GM_maxSlope). this is equivalent to what was comuted before with
1030        clipping or linear tappering.
1031      - fix vertical averaging (wrong by 1/2 level)
1032      - leave the old version (but will not be maintained) within
1033        #ifdef OLD_VISBECK_CALC / #endif
1034      - update output of exp. ideal_2D_oce
1035    o change error catch in calc_r_star to improve vectorization
1036    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1037      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1038    o adjoint:
1039      Re-organized adjoint checkpointing according to Matt Mazloff
1040      (but with modifs/completions/cleanups)
1041      Storing is now bundled into large arrays to optimized I/O
1042      (and second step in cleanup of the_main_loop)
1043    
1044    checkpoint59b
1045    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1046      - export/import (between ocean & coupler) fields needed for ocean DIC.
1047    o pkg/seaice:
1048      - get rid of three more exchanges seaice_calc_viscosities (required
1049        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1050      - bug fix in seaice_ocean_stress (update of lab_sea required)
1051      - reduce loop boundaries to necessary minimum also in seaice_evp
1052      - go back to the old way of computing deltaC/Z as the adjoint likes that
1053        better
1054    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1055      passive tracer to an Age Tracer) + update output.txt
1056    o pkg/exf:
1057      - implement A-grid / C-grid selection for wind-stress input files.
1058      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1059      for now, in exf_bulk_largeyeager04.F only :
1060      - change implementation for case where windspeed + 2. components wind-stress
1061        are read-in. AND use rhoConstFresh to convert evap.
1062    o pkg/seaice:
1063      - use correct EXCH_UV for wind-forcing (on A-grid).
1064      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1065        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1066    o pkg/exf:
1067      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1068      EXF_INTERPOLATION:
1069      - merge global_with_exf/code version of exf_interp_read.F
1070        to the main code ;
1071      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1072        reading the file ; Important: This options needs to be defined to recover
1073        previous code.
1074        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1075      - no longer loose real*8 precision along the way when using exf_iprec=64.
1076    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1077      - change discretisation of evp-solver in order to avoid another exchange
1078        (changes lab_sea) and clean up a little
1079      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1080        help the adjoint (this also changes the results slightly)
1081      - add a few "_d 0" where they had been missing in seaice_evp.F
1082      - cleaning up: remove unused seaice_calc_rhs.F
1083    o pkg/exf: some cleaning-up:
1084      - change various "constants" into runtime parameters
1085      - cleaned-up Large&Yeager04 routine which should eventually
1086        replace exf_bulkformulae.F (changed names of S/R and CPP)
1087        and merged various ALLOW_ATM_WIND options
1088     only used with thsice pkg (in thsice_get_exf.F):
1089      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1090        which are used when useStabilityFct_overIce=TRUE (= the default)
1091      - change default values of ice & snow emissivity and scale downward LW
1092        by ice & snow emissivity.
1093    o pkg/thsice:
1094     fix few little problems, in thsice_calc_thickn.F:
1095      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1096      - melt only laterally if hIce < hThinIce (as the comments say)
1097      and in thsice_extend.F:
1098      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1099      - start to form ice as soon as the minimum ice-volume is reachable.
1100     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1101      and cpl_aim+ocn
1102    o pkg/kpp
1103     - move computation of surface related input fields to KPP into a new
1104       subroutine kpp_forcing_surf.F
1105     - remove wrong (within bi,bj loops) EXCH calls.
1106     - little cleaning (add argument myThid in last position, cvs header ...)
1107     - for now, fix conservation problem by exchanging KPPviscAz (may not
1108       be the best fix)
1109    o pkg/seaice
1110     - check for inconsistent evp parameter/cpp-flag combination
1111     - remove leftover errIO flat for obsolete name list error handling
1112    o OpenAD
1113     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1114    
1115    checkpoint59a
1116    o pkg/seaice: some parameter clarifications and a little bit of clean up
1117    o pkg/thsice: rename run-time parameters:
1118       himin       -> hIceMin
1119       himin0      -> hThinIce
1120       hihig       -> hThickIce
1121       i0          -> i0swFrac
1122       transCoef   -> bMeltCoef
1123       frac_energy -> fracMelting
1124      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1125       with default values (for now) that do not change the results.
1126      remove old version of thsice vars advection in pkg/seaice.
1127    o in FFIELDS.h:
1128      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1129      - make pLoad & sIceLoad always available (but still only used if
1130         ATMOSPHERIC_LOADING is #define).
1131    o pkg/kpp: replaced _KPP_RL with _RL
1132    o bug fixes for vertical diffusivity computations when both KPP and
1133        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1134        are no longer updating the vertical diffusivity array
1135        (passed as argument) but are (re-) setting those arrays.
1136    o pkg/seaice: fix bug in evp solver, while doing that
1137      - change (improve?) discretization of stress computations for both
1138        cgrid-lsr and evp solver
1139      - add a new routine to compute strain rates
1140      - the above changes lab_sea results
1141      - add no slip conditions for evp solver (off by default), lsr-version
1142        may follow
1143      - fix exchange for shear at Z-points (does not change lab_sea)
1144      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1145        (to force the user to pick a time step since there is not "safe" way
1146        of choosing it)
1147      - add principal stress diagnostics
1148      - rearrange fields for evp a little to avoid having to call a: too many
1149        exchanges and b: exchanges for stress trensor components which we do
1150        not have.
1151      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1152        of evp, complete rewrite for lsr case (latter is does not yet work
1153        in all cases)
1154    o pkg/kpp: add code to have mixing in shelf ice caverns
1155      - add myThid to all kpp routines (long overdue)
1156    
1157    checkpoint59
1158    o pkg/exf:
1159      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1160        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1161      - move exf header files from lower_case.h to UPPER_CASE.h ;
1162        add missing cvs Header & Name
1163      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1164      - add namelist param. selectStressGridPosition, exf_monFreq
1165      - retire many _CLIM routines, and remove data.exf_clim
1166        + params moved to data.exf
1167        + climsst, climsss now handled by exf_set_gen, i.e.
1168          climss?period=0 refers to constant field,
1169          climss?period=-12 to monthly forcing
1170      - split up namelists in data.exf
1171    o pkg/seaice:
1172      - remove seaice_exch and seaice_exch_uv
1173      - remove superfluous exchange of theta
1174      - add myThid to seaice_budget_ocean/ice
1175      - add new interface for atmospheric wind forcing (C-grid only)
1176        + new routine
1177        + two new field (taux, tauy for stress over ice)
1178        + removed one global field (DAIRN) for C-grid case only
1179    o pkg/thsise
1180      - 2nd set of modifs for thsice adjoint in conjunction with exf
1181    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1182    
1183    checkpoint58y_post
1184    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1185      vertical diffusivity, similar to that in MOM4; turned on using
1186      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1187      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1188    o Added capability for 3D specification of background vertical diffusion
1189      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1190      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1191      "data" file that contains the 3D vertical diffusivity coefficients.
1192    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1193      - add code within pkg thsice to advect & diffuse sea-ice fields
1194      similar to (and will replace) what has been added in  seaice_advdiff.F,
1195      but: - conserving Mass, Heat & Salt.
1196           - better when using non-linear advection scheme (not yet fully tested)
1197           - can also be used in atmospheric set-up (for now, only the diffusion).
1198    
1199    checkpoint58x_post
1200    o IO option for global-file compact format:
1201      - add options when generating topology (utils/exch2/matlab-topology-generator)
1202      - add I/O capability (pkg/mdsio).
1203      - adapt utils/matlab/rdmds.m to read this format.
1204      for now long-line format not yet supported by pkg/mdsio (& exch2).
1205    o shelfice: add a few diagnostics
1206    
1207    checkpoint58w_post
1208    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1209      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1210      (and replace horiVertRatio in NH code).
1211      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1212                         and tutorial_plume_on_slope (sensitive to truncation)
1213    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1214      directly to drive seaice model (C-grid only)
1215    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1216     - reintroduce computation of wind from stress,
1217     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1218       mass points to avoid tau = 0
1219     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1220    o rdmnc.m: make it work with "global" files created with gluemnc
1221    o rdmnc.m : some improvements in dealing with singleton dimension
1222      (tested on all testreport mnc output files).
1223    o genmake2: disable pkg/profiles if netcdf test fails.
1224    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1225    o move call to cal_readparms up to make calendar parameters/variable available
1226      to all packages
1227    
1228    checkpoint58v_post
1229    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1230      useDynP_inEos_Zc tested.
1231    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1232    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1233      and portions thereof.  See read_cs.txt for description and examples.
1234    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1235      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1236      following the great-circle arc between those 2 points.
1237    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1238      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1239    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1240     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1241     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1242     - still needs work (not working with some options ; efficiency to improve)
1243       and serious testing.
1244     - use this scheme for temperature & salinity in 2 advection test exp.:
1245       advect_xy & advect_xz, respectively.
1246    
1247    checkpoint58u_post
1248    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1249    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1250    o testreport: add option "-skipdir" to skip some test.
1251    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1252      momentum calculation.
1253    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1254    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1255      remove checkpoint.F and the_correction_step.F (no longer used);
1256      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1257    o add option (linFSConserveTr) to correct for tracer source/sink due to
1258      Linear Free surface
1259    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1260    o pkg/thsice: fix reading mnc-pickups
1261    
1262    checkpoint58t_post
1263    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1264    o pkg/mdsio:
1265     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1266       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1267       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1268     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1269     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1270       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1271     - new S/R (to replace MDSWRITEMETA), which allows to write more
1272       informations (variable names, time ...) to meta files.
1273     - modify rdmds.m to give back the meta file content.
1274    o pkg/diagnostics: change vertical interpolation to be safer, and more
1275       flexible (define p-levels to interpolate to in data.diagnostics);
1276      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1277       diagnostic pointer.
1278    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1279    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1280    o fix multi-category seaice:
1281     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1282       SEAICE_MULTICATEGORY
1283     - fix short wave heat flux
1284    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1285       and allow to use EVP solver. Change forward lab_sea: test both EVP
1286       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1287    o Initial check-in of lab_sea adjoint
1288      (very similar to natl_box_adjoint/code_seaice)
1289      * used C-grid and EVP solver
1290      * used KPP, GM/Redi
1291      * uses inAdExact=.TRUE.
1292      * gradient checks fail for both ADM and TLM
1293        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1294        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1295        issue is related to forward mismatch between g77 an ifort
1296    o pkg/seaice: overhaul of thermodynamics
1297     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1298     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1299     - move a few global fields out of SEAICE.h into seaice_growth.F and
1300       make them 2D (FICE/QNETO/ ...)
1301     - remove FO (it is the same as QNETO)
1302     - introduce a few local fields to avoid modifying external fields such
1303       as atemp, etc.
1304    
1305    checkpoint58s_post
1306    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1307      changed exf_set_gen.F so that
1308        genperiod=0 means input file is one time-constant field and
1309        genperiod=-12 means input file contains 12 monthly means
1310    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1311      this affects truncation error ; generate new output file for exp. which
1312      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1313        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1314        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1315        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1316        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1317        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1318    o start implementation of deep-atmosphere and anelastic formulation
1319    o verification: remove 2nd copy of input files and use script "prepare_run"
1320      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1321    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1322    o profiles: fix for multithreaded case
1323    
1324    o diagnostics: rename few diags:
1325      s/'PRESSURE'/'RCENTER '/g
1326      s/'TICE    '/'oceFreez'/g
1327      s/'TAUX    '/'oceTAUX '/g
1328      s/'TAUY    '/'oceTAUY '/g
1329      s/'SWFLUX  '/'oceQsw  '/g
1330      s/DIFx/DFxE/g
1331      s/DIFy/DFyE/g
1332      and add few ocean-forcing diagnostics:
1333      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1334    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1335      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1336      as actual snow thickness.  It now refers everywhere to effective snow
1337      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1338    
1339    checkpoint58r_post
1340    o modifications to pkg/seaice/growth.F, which change results of
1341      lab_sea experiment: fixes pertain to melting snow over open water, to
1342      masking EVAP under sea ice, and to using the correct AREA variable for
1343      computations of EVAP, PRECIP, HSNOW, and GHEFF
1344    o add ability to read bathy, salt, and theta using MNC (off by def)
1345    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1346      both are turned off by default and do no change any results
1347    o seaice advection with pkg/thsice: a step toward the use of non-linear
1348      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1349    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1350      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1351      in natl_box (affects results @ truncation level: update output.txt)
1352    o multi-threading and IO:
1353      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1354      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1355        (needed to work with SingleCpuIO): tested in all verif. exp.
1356    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1357      affects the results (but none of the verification test uses this scheme).
1358    o Adding some pkg/diagnostics capability to pkg/seaice
1359      (will certainly be subject to changes)
1360    o ctrl: adding new control variables:
1361      lwflux, lwdown, evap, snowprecip, apressure, runoff
1362    
1363    checkpoint58q_post
1364    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1365      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1366      high_res_cube configuration by 4% on Columbia.
1367    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1368      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1369      dynamical allocation (seems to work in multi-threaded).
1370    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1371      single CPU io) so that TAF does not have to see EESUPPORT.h
1372    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1373    
1374    checkpoint58p_post
1375    o obcs: stop if obcs is used with useCDscheme = .true.
1376    o shelfice:
1377     - fix a sign error so that no slip at shelfice interface works
1378     - remove stop for combination non-hydrostatic code and shelfice. That does
1379       not mean, that the results are correct, but at least they are numerically
1380       stable
1381    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1382    o added adjoint exch routined for all exch*3d* routines
1383      and updated flow directives
1384    
1385    checkpoint58o_post
1386    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1387      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1388    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1389      and clean-up reading/writing of pickup files.
1390    o fix local version of read/write pickup (NH part) in rotating_tank/code
1391    o simplify EXCH interface:
1392     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1393     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1394    o added the regrid package
1395    o shelfice:
1396     - add a simple boundary layer scheme to reduce noise
1397     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1398    
1399    checkpoint58n_post
1400    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1401       local variable (not in common block).
1402    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1403      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1404      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1405        to work with SingleCpuIO.
1406    o add "_d 0" to real constant of pkg/cfc subroutines ;
1407       update exp. cfc_exemple & tutorial_cfc_offline output files.
1408    o multi-threading and IO:
1409      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1410        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1411      - barrier before and after reading.
1412      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1413      - avoid using MDS_WRITELOCAL for LAND pkg output.
1414      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1415        common-block variables ; Allows multi-threading with master-thread IO.
1416    o change default MAX_NO_THREADS from 32 to 4 ;
1417      and stop cleanly when MAX_NO_THREADS is too small.
1418    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1419    
1420    checkpoint58m_post
1421    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1422       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1423    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1424       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1425       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1426    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1427        add MITgcm_tutorials (= code + all the tutorials)
1428    o ecco, option to compute cost for total ssh (mean+anom)
1429    o consistent with addition of ptracer and ssh in pkg/profiles
1430    o profiles: adding ptracer and ssh
1431    o testreport: change multi-test output-file name
1432      (from output.txt.{name} to output.{name}.txt)
1433    o profiles: now ok for mutli-tiles case
1434    o seaice: add 4 parameters for different advection schemes for area,
1435      (effective) seaice thickness, enthalphy, and snow height. Their default
1436      is the standard parameter SEAICEadvScheme
1437    o calc_gw:
1438     - add cosFacU in zonal viscous flux (harmonic.visc.).
1439     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1440       of tutorial_plume_on_slope.
1441    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1442    o calc_gw: true flux-form, account for horizontal grid spacing.
1443      update rotating_tank results, but not plume_on_slope (affected at
1444      truncation level, 11 digits).
1445    
1446    checkpoint58l_post
1447    o calc_gw:
1448     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1449     - remove side-drag for now (need to fix it); update plume_on_slope results.
1450     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1451    o commit code to make SST/SSS weights spatially variable
1452      (based on either variable in-situ or variable initial T/S weights)
1453    o pkg/ecco:
1454      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1455        now based on horizontally varying weights wthetaLev, wsaltLev
1456      * cost_averagesflags now returns year indices in addition to day, month
1457      * sflux balance is performed on annual basis
1458        (sflxumm, sfluxmm2, bal_sfluxmm)
1459      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1460        including separate counting and multipliers
1461    o pkg/rbcs
1462      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1463    
1464    checkpoint58k_post
1465    o testreport:
1466     - always build in dir. "build" (if not there, mkdir build instead of building
1467       & running in input)
1468     - run in dir run (if it exists), in build otherwise.
1469     - call prepare_run (if input/prepare_run exists)
1470     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1471    o pkg/exf modifications to interpolation and rotation routines for more
1472       reasonable treatment of North Pole singularity: for tracers North Pole
1473       value is set to northernmost zonal-mean value, for zonal velocity it is
1474       set to zero, and for meridional velocity it is set to northernmost value.
1475    o pkg/exf/exf_check_range.F
1476     - add tile index to diagnostics and move stop statement to the very
1477       end of the routine.
1478    o pkg/diagnostics: (diagnostics_main_init.F)
1479      define title of isomorphic variables according to the current config.
1480    o pkg/thsice with pkg/seaice dynamics:
1481    - fix domain of computation (interior only, required for exf) and do exchanges
1482    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1483    o towards a standard way of dealing with multi-threading in MONITOR
1484      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1485    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1486       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1487    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1488    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1489    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1490       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1491    o tracer advection:
1492     - clean-up and simplify calc_common_factors.F
1493     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1494       advection subroutine (but still not used within DST advection S/R)
1495    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1496    
1497    checkpoint58j_post
1498    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1499      from file (collects calls previously in FORWARD_STEP)
1500    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1501    o adjoint store dir. adjusted accordingly
1502    o genmake2
1503      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1504    
1505    checkpoint58i_post
1506    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1507      on wind stress (SEAICEstressFactor defaults to 1.)
1508    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1509      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1510    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1511      on CS-grid: no longer loosing mass.
1512    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1513    o pkg/ggl90: fix sloppy output and fix a bug
1514    o pkg/seaice: added SEAICEuseEVPpickup parameter
1515      - Set to false in order to start EVP solver with
1516        non-EVP pickup files when using SEAICEuseEVP
1517      - fix sign error in diffusion in seaice_calc_rhs
1518    
1519    checkpoint58h_post
1520    * Modifications for bottom topography control
1521      o replace hFacC by _hFacC at various places
1522      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1523      o add non-self-adjoint cg2d_nsa
1524      o update autodiff support routines
1525      o re-initialise hfac after ctrl_depth_ini
1526      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1527    * Adding verification for 5x5 box (4-layer) bottom topography control
1528    
1529    checkpoint58g_post
1530    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1531       used for mean seasonal cycle, mean diurnal cycle); add an example
1532       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1533    o pkg/ggl90:
1534      - add parameter (minimum surface kinetic energy)
1535      - fix bug (avoiding division by zero)
1536    o couple pkg/thsice to pkg/seaice:
1537      - modify advection in seaice to accomodate new scalar fields to be advected
1538      - only muliDimAdection scheme work with seaice/thsice
1539      - mapping of thsice-variables to seaice-variables, back and forth
1540      - does not break the verification experiments, but does not give the
1541        desired results either
1542    o pkg/seaice
1543      - make (default) second order advection a bit less confusing?
1544    
1545    checkpoint58f_post
1546    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1547      to pkg/seaice):
1548      - new routines thsice_map_exf and thsice_get_exf provide the interface
1549      - add an additional formal parameter to thsice_solve4temp
1550    o pkg/exf:
1551      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1552      - correct Stefan-Boltzmann constant
1553      - new parameter for longwave surface emittance
1554      - separate some stuff from exf_bulkformulae into new routines  
1555        exf_radiation, exf_wind
1556      - add new parameters and constants: longwave emissivity for ocean, ice
1557        and snow, evaporation parameters over ice
1558      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1559        either wind from stress or stress from wind
1560    o pkg/thSIce:
1561    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1562    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1563       and THSICE_CALC_THICKN
1564    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1565    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1566      to make debugging easier.
1567    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1568    o pkg/bulk_force:
1569      - clean-up comments and parameters ;
1570      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1571    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1572      generate new output for test-experiment: aim.5l_cs.thSI
1573    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1574      testreport accordingly
1575    
1576    checkpoint58e_post
1577    o SEAICE_CGRID adjoint done
1578    o R_STAR adjoint implemented.
1579      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1580      * need to sort out init. of h0facc, etc.
1581    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1582      to be able to use it in pure forward.
1583    
1584    checkpoint58d_post
1585    o upgrade simple test-experiment to tutorial example:
1586     step.1: duplicate the experiment and (step.2) will remove the old copy.
1587      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1588      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1589      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1590      tutorial_global_oce_biogeo    <- copy of dic_example
1591      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1592      tutorial_plume_on_slope       <- copy of plume_on_slope
1593      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1594      tutorial_global_oce_optim     <- empty for now (David ?)
1595      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1596     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1597    o correct a sign problem in cost_scat.F
1598    o obcs and ptracers: fix boundary conditions for advections schemes
1599      with larger stencil
1600    o thsice adjoint: start
1601    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1602      completeness
1603    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1604      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1605    o ptracers adjoint:
1606      * avoid extensive recomputatations
1607      * fix missing re-init. of gptr (missed by TAF)
1608    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1609      me to turn off the excessive output to STDOUT that this package produces
1610    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1611      and add those terms in Vector-Invariant formulation.
1612    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1613      if the control period (xx_hfluxperiod etc) is 0
1614    o in profiles pkg, clean routines and fix details
1615    o in ecco pkg, reading ssh data:
1616      fix problem in case the model does not start at iter0=0
1617    o fix mnc-pickup/restart for ptracers
1618    o new package prifiles:
1619      code to compute profile-based cost by Gael Forget
1620      (modifs in ecco, ctrl, autodiff)
1621    o Benign bug fix in initialization (spotted by M. Mazloff) of
1622      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1623    
1624    checkpoint58c_post
1625    o adjoint: finish NLFS adjoint and provide reference output in
1626      verification/global_ocean.90x40x15/results_ad_nlfs
1627    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1628      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1629      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1630      with SEAICE_CGRID defined.
1631    o move calendarDumps from "data" to "data.cal" and clean-up the code
1632      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1633    o add useEXF & useCAL flags (for now, set in hard-coded way)
1634    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1635      (were missing in NH mode, and wrong in quasihydrostatic mode).
1636      waiting for Chris updated version of calc_gw to add those CALLs.
1637    o fix bug in quasihydrostatic S/R ;
1638      add a test for this option: global_ocean.90x40x15.qshyd
1639    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1640      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1641    o add on/off flag useOffLine for package OFFLINE
1642    o seaice:
1643      - modify advection so that it works also on the C-grid
1644      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1645        problem in multi-tile runs with C-grid
1646      - add flags for clipping ice velocities and/or masking solver forcing
1647      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1648        C-grid solver
1649      - added a few comments to seaice_diffusion.F
1650      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1651        are now exclusive)
1652      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1653        required re-ordering the code a little:
1654       + make DAIRN global variable (defined in SEAICE)
1655       + move computation of the viscosities eta and zeta into a new separate
1656         routine (because I need to recompute them in seaice_ocean_stress.F)
1657    
1658    checkpoint58b_post
1659    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1660      update output.txt of exp. aim.5l_cs.thSI
1661    o various mnc cleanups and improvements:
1662      + shrink lookup tables by factor of ~4
1663      + better error reporting when running out of lookup space
1664      + able to handle longer path/file names (up to 500 chars)
1665    o adjoint:
1666      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1667      - TBD: "hidden" mom_vecinv recomp. in dynamics
1668    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1669     (allow to differentiate between forcing components using new integer flags:
1670      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1671     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1672    o ecco
1673      - enable trend removal from SSH anomaly obs.
1674    o adjoint
1675      - a fix for PmEpR when #undef EXACT_CONSERV
1676      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1677      - try to fix "hidden" recomp. in forward_step for NLFS
1678        (NLFS seems broken sometimes after I checked it in)
1679    o seaice:
1680     - add c-grid version of the dynamic solver:
1681       + three new routines that are the c-grid substitute lsr, dynsolver
1682         and ostres
1683       + put a few fields that were local to dynsolver into global common
1684         blocks, so that I can move the computation of stresses etc into
1685         seaice_lsr (saves coding but may break the adjoint).
1686     - replace more hardwired parameters by runtime parameters
1687     - add ice masks that mask the rhs of the implicit solvers where there
1688       is no ice (commented out in seaice_dynsolver, because i am not sure
1689       if this works properly), eventually this should replace the clipping
1690       of ice velocities in seaice_dynsolver to +/-40cm/s.
1691    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1692      include it only where its needed
1693    o move balancing of fluxes before the call of external_forcing_surf
1694    o seaice:
1695      - correct units of turning angles (now they are really in degrees)
1696      - move computation of GWATX/Y out of main routine into dynsolver
1697      - initialize GWATX/Y in seaice_init
1698    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1699      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1700    o seaice: add runtime flags for turning angles (default to zero)
1701    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1702      and trend from exf forcing and ctrl control adjustments
1703    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1704      (since checkpoint57x_post)
1705    o change the default rotation period to 86164.s = the Earth rotation
1706    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1707      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1708    o seaice advection: add code for choosing between the default (2nd order
1709      central differences) and multiDim advection schemes provided by
1710      pkg/generic_advdiff
1711    o seaice:
1712      - removed all references to SEAICE_GRID.h fields from
1713        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1714        (cubed-sphere configuration will change a little)
1715      - grid computations in seaice_init are obsolete now.
1716      - cleaned up code a little so that is easier to read (hopefully).
1717      - added new (better?) discretizations of default advection and diffusion
1718        (turn on with SEAICEuseFluxForm)
1719      - replace 1 in 3d global fields by kSurface in growth.F
1720      
1721    checkpoint58a_post
1722    o seaice:
1723      - bug fix in advect.F
1724    o shelfice:
1725      - separate shelfice load anomaly from pload (breaks with time
1726        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1727        Its default is 0., but it may be computed more cleverly from (unknown)
1728        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1729        done offline. A good approximation of the pressure load anomaly is
1730        necessary to avoid large initial adjustment processes underneath
1731        deep-reaching shelfice.
1732      - small fix in ISOMIP shelfice_thermodynamics
1733      - add more sophisticated thermodynamics of Hellmer (1989), this is
1734        now the default
1735      - give a few constants more intuitive names
1736    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1737      if bulk formulae are used in long integration (especially EmPmR). Turn
1738      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1739      if balancePrintMean, the imbalance that is substracted is printed to
1740      STDOUT.
1741    o fix bug (typo) in obcs_apply_eta.F
1742    o add a new package shelfice which enables us to model the circulation
1743      underneath shelf-ice with draughts of hundreds of meters.
1744     - works
1745     - to do: + include improved thermodynamics
1746              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1747                instead of new field kTopC
1748              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1749                instead of new field R_shelfIce and new code in ini_depth.F
1750                and ini_mask_etc.F?
1751              + adjust vertical mixing schemes?
1752    o seaice pkg:
1753     - add a cpp-flag to include a simple formula for a salinity dependent
1754       freezing point of sea water at the surface
1755     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1756       meridional stresses are now different (and hopefully correct)
1757    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1758       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1759       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1760    o pkg/diagnostics: add options and parameters for regional-statistics
1761       diagnostics ; define regions by reading a region-mask from a file
1762       (might add other options later)
1763    o pkg/bulk_force:
1764     - add option and parameters to use AIM surface-flux formulae.
1765     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1766       others forcing fields (defined in PARM05, parameter file "data") are loaded
1767       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1768     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1769     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1770     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1771       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1772     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1773    
1774    checkpoint58
1775    o add "--embed-source" option to genmake2 which, when the supporting
1776      tools can be compiled (as determined by genmake2) will turn on the
1777      embed_files package which then embeds the entire MITgcm source code
1778      (*.[fFhc] + Makefile) used for the build within the executable
1779      - requested by CNH but off by default
1780      - adds a paltry <9MB to the mitgcmuv executable in most cases
1781      - only writes the output when useEMBEDSRC in eedata is true
1782    o clean up 3-dim. relaxation codes:
1783      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1784      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1785      * Thanks to Tom Haine for testing!
1786    
1787    checkpoint57z_post
1788    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1789      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1790    o fix the pickup behavior for obcs in combination with ptracers
1791    o fix a bug in ptracers_external_fields_load
1792    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1793      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1794    o transfered surface NH pressure to eta field (if exactConserv).
1795    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1796         and update lab_sea output.txt file.
1797    o completing 3-dim. relaxation code: additional term
1798         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1799      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1800      * At compile time, in "EXF_OPTIONS.h" set
1801          #define  ALLOW_CLIMTEMP_RELAXATION
1802          #define  ALLOW_CLIMSALT_RELAXATION
1803      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1804          tauThetaClimRelax3Dim = 15552000.0,
1805          tauSaltClimRelax3Dim  = 15552000.0,
1806      * 3 cases:
1807          1) Use a constant-in-time 3-dim. field
1808          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1809          3) Real-time relax. to time-evolving prescribed field
1810    o Adding Laplacian-type smoothness constraint on
1811      initial and boundary (forcing) controls (ic, bc)
1812      * enable at compile-time via
1813        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1814      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1815      * Absolute scale somewhat unclear so far
1816      * no area weighting was included since no other cost term does so far
1817    
1818    checkpoint57y_post
1819    First step for a NLFS adjoint
1820    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1821    o new init. routines for calc_r_star, calc_surf_dr
1822    o still need to deal with ini_masks_etc
1823    o testreport seemed happy
1824    checkpoint57y_pre
1825    
1826    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1827    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1828    o add new offset feature to offline pkg (plus minor cleanup)
1829    o cfc fixes for final year of integration
1830    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1831      be in GCHEM_OPTIONS).
1832    
1833    checkpoint57x_post
1834    o fix testreport Pb in multiple test experiment.
1835    o cleanup our namelist syntax in verification:
1836      - make it more F95 standards compliant (some work still needed)
1837      - allows the vast majority of our tests to work with gfortran
1838    o Non-Hydrostatic:
1839     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1840     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1841    o Allow to apply AB on T,S rather than on AB(gT,gS):
1842     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1843     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1844       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1845     - need a "clever" read_pickup to restart from the other AB formulation
1846    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1847    o remove some unused variables (reduces number of compiler warnings)
1848    o adjoint
1849      * Disable useVariableViscosity for adjoint for time being
1850        (there are a number of extensive recomputations)
1851      * Initialize certain variables needed for adjoint
1852    
1853    checkpoint57w_post
1854    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1855                 fix the singleCpuIO RS version of MDSWRITEFIELD
1856       and add a WARNING if using globalFiles=T with multi-processors.
1857    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1858      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1859    o tracer advection scheme:
1860      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1861       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1862       was not very convenient).
1863      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1864       (further tests needed for the implicit DST & Flux-Limiter schemes).
1865    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1866      and sRef for convenience, handy, when you want to initialize
1867      ptracers in a large domain with a constant non-zero value. Also,
1868      untangle ptracers_init.F a little.
1869    
1870    checkpoint57v_post
1871    o change dome exp. to use variable viscosity in side-drag terms.
1872    o remove all the files from the cfc_offline test since they are now
1873      incorporated into tutorial_cfc_offline which has been producing
1874      identical results for a few days of testing
1875    o add new parameter: sideDragFactor to enable half-slip-side BC
1876      and change side-drag S/R to use viscosity from mom_calc_visc
1877      (can switch back by setting sideDragFactor=0.); affects results at
1878      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1879       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1880    o vorticity & strain are now computed without masking, to account for
1881      no-slip-side BC in variable viscosity calculation ; mask is applied
1882      anyway later on, before computing advection/coriolis terms.
1883    o modify exp4 to test new obcs support for reading from external files
1884      and for passive tracers
1885    o fix behavior of ptracers_monitor when monitor output is written to a
1886      netcdf-file; still not independent of monitor.F (writes in the same
1887      file).
1888    o change default value of tRef (put a uniform, meaningful value for ocean
1889      & atmos) and initialize sRef (was missing, as Martin mentioned).
1890    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1891      to be proportional to enstrophy dissipation length.  Thus,
1892       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1893      This is now consistent with Smagorinsky and with the manual.
1894    
1895    checkpoint57u_post
1896    o OBCS and PTRACERS: add open boundary support for passive tracers
1897      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1898        OB-values from file; this is not different from the way theta and salinity
1899        are treated
1900      - however, Orlanski-radiation conditions are not supported, and the model
1901        will stop if you use pTracers and Orlanski at the same time.
1902      - beefed up the rountine obcs_external_fields_load: now only those open
1903        boundary values are overwritten with values from files for which there
1904        are really files, otherwise the OB-fields remain untouched. This makes
1905        it possible to use different OBs at different ends of the domain (as
1906        with EXF)
1907    o reduce number of exch calls in shap_filt (s2).
1908    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1909      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1910    
1911    checkpoint57t_post
1912    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1913    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1914      same truncation, independent of the face number: affects affects several
1915      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1916    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1917      note that biharmonic viscosity + no-slip was not tested in any experiment.
1918    o fix bug in non-linear free-surf side-drag ; generate new output for
1919      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1920    o make mnc honor the writeBinaryPrec flag for most kinds of output
1921    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1922    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1923      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1924    o add brackets in multi-terms sum to get same truncation, independent of
1925      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1926      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1927    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1928      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1929      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1930      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1931      Suggested values of viscosity parameters found in mom_calc_visc.
1932      Many new viscosity diagnostics available.
1933    
1934    checkpoint57s_post
1935    o Add clearing-house for viscosity calculations, mom_calc_visc and
1936      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1937      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1938      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1939      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1940      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1941      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1942      ViscAhStrain and viscAhTension are now retired.
1943    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1944    o In response to JMC's bug report, genmake2 now ignores any soft-links
1945      that it finds in the *current* directory when searching for files.
1946      Soft-links found in any other source directories will still work as
1947      they did before.
1948    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1949      a C routine to unlimit the stack size
1950    o mnc-ify pkg/aim snapshot vars
1951    o mnc-ify pkg/land as requested by Daniel
1952    o various changes to mnc including:
1953      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1954      - output can now be grouped so that all files within a group
1955          change the ITER portion of their names in lock-step together
1956      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1957          and works with both EXCH1 and EXCH2 (but needs more testing)
1958      - writing works for all verification test cases w/ g77 on Linux
1959    
1960    checkpoint57r_post
1961    o make MNC variable initialization happen earlier
1962    o add diagnostics for (almost) each term of the momentum Eq.
1963    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1964    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1965    o remove MINIMAL_TAVE_OUTPUT option ;
1966      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1967    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1968      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1969    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1970    o add time-dependent SST, SSS control
1971    o cost terms in ecco/ modularized (new cost_generic.F)
1972    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1973    o new infrastructure for seaice model vs. obs misfits in seaice/
1974      * driver from the_main_loop.F is seaice_cost_driver.F
1975      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1976      * gradient check in Exp. 6a of natl_box_adjoint/
1977    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1978      (see README file)
1979    
1980    checkpoint57q_post
1981    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1982    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1983      - bug was reported by Jean-Michel and Ian Fenty
1984    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1985      update exp. cpl_aim+ocn output.
1986    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1987      Needed for high-res. runs with large global files
1988      to be able to limit tapelev size
1989    o Changed some tests for adjoint:
1990      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1991      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1992      * global_ocean.90x40x15/ back to default 3-level checkpointing
1993    o Modifications to enable scripted COMMON to MODULE conversion
1994      * verification/OpenAD/code/ has necessary scripts and description;
1995      * converts, compiles and runs successfully;
1996    
1997    checkpoint57p_post
1998    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1999    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2000      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2001    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2002    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2003      (was already the case for dissipation with mom_vecinv,
2004       and also the case for grad.PhiHyd when staggered-timeStep)
2005      This will allow to put dissipation out-off the AB time-stepping.
2006     Unfortunately, affects truncation error. Update output of exp. that "fails"
2007      (cg2d matching number) and leave the others for later: front_relax(10),
2008      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2009      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2010    
2011    checkpoint57o_post
2012    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2013      (2) its ready to be documented during the 20050801 DocFest
2014    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2015      for ideal_2D_oce and lab_sea on linux_ia32_g77
2016    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2017      in global1x1_tot/code_seaice_adj to access indices 32, 33
2018      (worth another tag)
2019    
2020    checkpoint57n_post
2021    o adding precip control xx_precip 32
2022    o adding swflux control xx_swflux 33
2023    o Replacing 10 forcing penalty cost routines by 1 generic.
2024    o Implementing partitioning in time-mean and variable adjustment
2025      for atmos. state.
2026    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2027    o in natl_box_adjoint:
2028      * updated exp 1 to 10
2029        (but does not have time-mean vs. variable split results yet)
2030    o updated global1x1/*_seaice_adj/
2031      to incorporate latest changes
2032    o enable useSingleCpuIO for mdsio vector routines
2033      (applies in particular to tapelev I/O)
2034    o removed inefficient K-loop in all active_file*control*.F
2035    
2036    checkpoint57m_post
2037    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2038      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2039    o pkg/exch2: filling of face-corner halo regions is optional
2040      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2041    
2042    checkpoint57l_post
2043     tag before updating tutorials (pre-release-2)
2044    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2045       for output and interpolation of input fields onto model grid)
2046    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2047       Affects results of exp. rotating_tank ; update output.txt.
2048    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2049          and taking the square quantity and/or using a fraction-weight field.
2050    o fix aim_diagnostics_init.F mate numbers.
2051    o add mnc output capability to diagnostics/diagstat and update
2052      our cvsignore files for the ACSII output generated
2053    
2054    checkpoint57k_post
2055    o lab_sea now uses diagnostics package and provides a suite of
2056      new EXF diagnostics output.
2057    
2058    checkpoint57j_post
2059    o exf
2060      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2061        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2062        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2063      * extended diagnostics output
2064        - now includes all EXF variables
2065        - hs, hl moved to common block
2066        - separate S/R for diagnostics, called after ctrl vector is added
2067        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2068        - EXFqnet contains true Qnet (i.e. includes qsw)
2069      * updated verif. lab_sea, global_with_exf
2070      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2071        to ensure that diagnostics sees a true EXFqnet
2072    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2073    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2074      several times with different frequencies.
2075    o mnc-ify the thsice package as requested by Daniel Enderton
2076      - the monitor--MNC output needs work
2077      - many attributes need to be added (most are currently blank)
2078    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2079      - many attributes need to be added (most are currently blank)
2080    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2081    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2082    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2083      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2084         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2085    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2086     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2087    
2088    checkpoint57i_post
2089    o Diagnostics package was changed: diagnostic allocation is now deactivated
2090      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2091    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2092      add 1rst Order upwind vertical Shear.
2093    o add a quick fix for A/B checkpointing in OFFLINE mode
2094    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2095      end-run around the C/Fortran linking horror in eesup/src/timers.F
2096    o added pkg/runclock: allows user to terminate run based on wall clock
2097    o added non-hydrostatic scaling parameter: nh_am2
2098    o pkg/my82: futile attempt to make results compiler-independent by adding
2099      some "_d 0", etc. no effect.
2100    o for mnc output, fill the 'T' coordinate var with myTime and create a
2101      separate 'iter' variable for iteration count
2102    o pkg/diagnostics:
2103      add new capability: output of Global/Regional & per-level statistics ;
2104      tested against monitor output (including land & thSIce) on various exp.
2105    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2106    
2107    checkpoint57h_done
2108      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2109      data.diagnostics, data.gchem, data.ptracers) is done.
2110    
2111    o pkg/diagnostics: prepare for Global/Regional statistics.
2112      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2113    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2114      and rename it: DIFFERENT_MULTIPLE
2115    
2116    checkpoint57h_post
2117    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2118    o pkg/diagnostics: change output frequency, now in seconds (instead
2119      of Nb of iterations). This requires to change data.diagnostics.
2120    checkpoint57h_pre
2121    
2122    o in mnc, let the user create the output dir if both mnc_outdir_date
2123      and mnc_outdir_num are false
2124    o add fflags() to pkg/diagnostics which allows one to specify, on a
2125      per-file basis, the file precision [default behavior is unchanged]
2126    o added diagnostics to pkg/kpp, including computation of mixed layer
2127      depth based on a temperature/density criterion
2128    o updated verification/natl_box to test the new pkg/kpp diagnostics
2129    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2130    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2131    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2132      not mnc -- this mistake was found by JMC and is now corrected
2133    
2134    checkpoint57g_post
2135    o add Adams-Bashforth 3rd Order time stepping:
2136      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2137      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2138    checkpoint57g_pre
2139    
2140    o make lambda[Theta,Salt]ClimRelax spatially varying
2141      (default remains spatially uniform constant based on tau)
2142    o added new control variables
2143      * init. uVel, vVel, etanN
2144      * lambda[Theta,Salt]ClimRelax
2145    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2146      (suggested by G. Forget)
2147    
2148    checkpoint57f_post
2149    o add parameter "baseTime" = model base time = time at iteration zero
2150      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2151      account for baseTime shift
2152    o move Coriolis arrays from PARAMS.h to GRID.h
2153    checkpoint57f_pre
2154    
2155    o mnc-ifying the seaice package
2156    o introduced an alternative length scale calculation for use in the limiting
2157      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2158    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2159    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2160      as well as grad(vort3).  Made it compatible with both approximate form
2161      for the cubed sphere and full form of these gradients.  Added flag
2162      useFullLeith to select between approximate and full form.  
2163    o add "d0" in getcon.F to reduce differences between compilers/platforms
2164      update output.txt of exp. fizhi-gridalt-hs
2165    o change port_rand funtion to allow to set the seed.
2166    o fix obscure MNC bug involving conversion between reals and integers
2167      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2168        new version is now more standards-compliant
2169    o adjoint-related modifications
2170      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2171      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2172      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2173    
2174    checkpoint57e_post
2175    o Adding eddy stress controls a la Ferreira et al.
2176    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2177    
2178    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2179      update output.txt of exp. fizhi-gridalt-hs
2180    o add more "Z" dimensions and associated coordinate vars to MNC
2181    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2182    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2183      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2184      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2185      months and years.  Requires pkg/cal.
2186    o diagnostics: add pickup functionality
2187      - off by default for backwards compatibility
2188      - current version only uses MDSIO -- MNC will be added
2189    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2190    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2191    
2192    checkpoint57d_post
2193    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2194    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2195      output from the diagnostics package
2196    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2197    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2198      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2199    o add coordinate variables to the MNC output from the diagnostics package
2200    o change MNC-flags default value: true when useMNC=TRUE
2201    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2202      the ability (off by default) to read the grid information using MNC
2203    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2204    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2205    o do snap-shot diagnostics at the middle of the time-interval (instead of
2206      at the end).
2207    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2208      new test for AIM with thSIce + slab-ocean
2209    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2210    o move state variable diagnostics to the beginning of the time step ;
2211      (note: still needs some work specially for snap-shot diagnostics)
2212      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2213    
2214    checkpoint57c_post
2215    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2216    o generate new output.txt files on faulks with g77 & the new -ieee option
2217    checkpoint57c_pre
2218    
2219    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2220      update output.txt of exp. global_ocean.90x40x15
2221    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2222      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2223    o add saltFlux(+File) forcing capability with periodicExternalForcing
2224    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2225    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2226    o improvements for the MNC output from DIAGNOSTICS:
2227      - correct handling of the unlimitied dimension
2228      - all dims now have associated coordinate variables
2229      - variables located at U, V, and Corner ("Z") points are now written
2230        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2231        *all* data points are output
2232    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2233    o added pkg/seaice/seaice_monitor.F
2234    o mdsio_readfield.F can now read files visible only to master MPI process.
2235    o pkg/seaice: some test code for ice-modified ocean stress
2236    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2237      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2238      spurious negative numbers for precipitation and humidity.  Will cause
2239      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2240    o pkg/ctrl/
2241      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2242        May be enabled via doPackDiag
2243      *  introduce z-scaling of
2244         + gradient (doZscalePack) and
2245         + control (doZscaleUnpack)
2246    o pkg/mdsio/
2247      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2248      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2249    
2250    checkpoint57b_post
2251    o simplify options in diagnostics_fill arguments (remove weird combinations)
2252    o fix MNC coordinate variables so that they now contain per-face index
2253      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2254      general, EXCH2 grids are only aligned to a "local" coordinate system
2255    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2256    o Implement instantaneous output within pkg diagnostics:
2257      setting a negative frequency in data.diagnostics produces
2258     "snap-shot" output (as opposed to time-average if freq > 0)
2259    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2260      NOTE: change ptracer diagnostics name: use 2 characters to work with
2261            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2262    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2263      becomes the coordinate variable for the 'T' dimension
2264    o add CF-style coordinate variables to MNC
2265      - just a first cut:  numbers are meaningless on the cubesphere and
2266        missing along the T axis but otherwise it works!
2267    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2268    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2269    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2270      this is based directly on what the model compute, so that the content of
2271      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2272    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2273    o clean up build options files for SunOS, in particular
2274      - remove -traditional from xmakedepend
2275      - change -xarch=v9 to -xarch=native for f77
2276      - restore use of make (not gmake)
2277      - add CC=gcc if using g77
2278    o changes per discussion of AM, JMC, & EH3 today:
2279      - move redundant "grid" variables out of "state" -- in preparation of
2280        creating proper CF-style coordinate variables and in recognition
2281        that any/all grid variables can be easily copied (eg. w/NCO) from
2282        the grid files into any of the other NetCDF files
2283      - *always* output grid variables with MDSIO (this will eventually be
2284        changed)
2285      - output MNC grid file if useMNC is true
2286    o every instance of _END_MASTER() has been found and replaced with
2287      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2288      preprocessors
2289    o re-arrange diagnostics pkg initialisation:
2290     - allow each package to extend the available diagnostics list
2291     - add some checking and fix small problems (multi-threaded, ...)
2292     - new S/R diagnostics_fill (replace fill_diagnostics):
2293       look through the short list of active diag. (instead of the long list)
2294       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2295    
2296    checkpoint57a_post
2297    o this set of changes restores TAMC compatibility
2298      tested for global_ocean.90x40x15 adjoint on trough
2299      (what a pain)
2300    
2301    checkpoint57a_pre
2302    o some modifs in tools/build_options for sunos
2303    o call ctrl_pack for ctrl at end for optimcycle=0
2304    
2305    checkpoint57
2306    o add horizontal bi-harmonic viscosity for vertical velocity
2307      - new parameter viscA4W (defaults to viscA4)
2308      - affects only non-hydrostatic code
2309      - to be done: no-slip lateral boundary conditions
2310    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2311    o implement Implicit Vertical advection for pTracers
2312    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2313      (implemented also for implicit vertical diffusion & advection)
2314    o OBCS: extend application of tracer open boundary conditions
2315      to a strip beyond the boundary of width Olx/Oly
2316    o add call monitor to TAF set of required calls (flow directives)
2317      and include in natl_box_adjoint
2318    o untangle a few ifdefs related to cost, ctrl, autodiff
2319      untangel a few ALLOW_ECCO_OPTIMIZATION
2320    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2321      (theta2, salt2 in ecco_cost_weights)
2322    
2323    checkpoint56c_post
2324    o OBCS as control variables
2325      - update ctrl_ad_diff.list, obcs_ad_diff.list
2326      - remove balance of obcs controls from default
2327      - fix index bug nobcs in ctrl_init
2328      - fix dummy fields filen in ctrl_pack
2329      - add dummy weights for obcs
2330    o lsopt: comment out fort.94 output
2331    o optim:
2332      - remove unnecessary header files
2333      - adjusted namelists
2334      - add xerbla.F to Makefile
2335    o exf:
2336      - multiple modifications of exf_check_range
2337      - unit change in exf_init_runoff from [m/year] to [m/s]
2338    o mdsio:
2339      - i/o-vector change debugLevel from debLevA to debLevB
2340    
2341    checkpoint56b_post
2342    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2343      is called from DO_THE_MODEL_IO
2344      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2345      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2346      - clean up PTRACERS_WRITE_TIMEAVE a little
2347    o add another verification experiment that tests both the cfc-pkg and
2348      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2349      reactive tendencies treated inline with regular timestepping
2350    o testreport previously did a lousy job of comparing small numbers, so
2351      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2352      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2353      testreport.
2354    o ptracers_monitor: bug fix for MPI
2355    
2356    checkpoint56a_post
2357    o GCHEM: finish reorganizating the package
2358      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2359        (introduces another 3D-array for each passive tracer, but only if
2360        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2361        gchemTendency is not needed because the timestep is done separately)
2362      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2363      - GCHEM is now---more or less cleanly---separate from PTRACERS
2364      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2365        so clear to me how that should be done in a general way.
2366    o CFC: improve formatting of output in CFC_ATMOS
2367    o PTRACERS:
2368      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2369        that ALL experiments with ptracers enable can be checked. This makes
2370        GCHEM_MONITOR obsolete.
2371      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2372        monitorFreq
2373      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2374    o add PTRACERS (PTR0[1-5]) to testreport output
2375    o exf_check_range:
2376      * default changed to .TRUE.
2377      * will check values for niter0 if debLevA, every timestep if debLevB
2378      * STOP in exf_check_range if 'out of range'
2379      * range chosen generous to allow for potential extema
2380      TBD: a version with stricter range
2381           permitted range would be runtime parameters
2382    o GMredi:
2383      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2384      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2385      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2386    o GCHEM:
2387      - move call to GCHEM_FORCING_SEP, so that it is now called before
2388        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2389      - introduced a useGCHEM runtime flag and applied it everywhere.
2390      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2391        this flag is now only visible within GCHEM-pkg routines.
2392      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2393        be replaced by a 3D array that is computed before thermodynamics; for
2394        this, the tracer ID iTracer had to be included into the parameter list
2395        of ptracers_forcing
2396      - set up forward_step to call gchem_forcing, that will replace
2397        gchem_forcing_int in ptracers_forcing
2398      - cleaning up
2399    o small cleaning of exch2: remove files that are also in eesupp/src
2400    
2401    checkpoint56
2402    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2403    o mnc: cleanup "full" files--fixes out-of-memory problem
2404    o ECCO-GODAE
2405      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2406      * fully merged and updated from SIO code
2407        windstress sign change affects
2408        - exf_inscal_[u/v]stress
2409        - sign of xx_tau[u/v] adjustments
2410        - signs in cost_scat
2411      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2412      * natl_box_adjoint updated and compressed
2413      * 2-level checkpoint switch added
2414        (tested in EXP. 1 of natl_box_adjoint)
2415      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2416    o SVD
2417      * first complete, non-hacked version for SVD calculations
2418      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2419        performed via direct access files admtlm_vector.it????
2420        (via ctrl_[un]pack)
2421      * optimcycle is used for ARPACK iteration counter
2422        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2423      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2424        and add linear transforms where necessary
2425      * controls are initial/final SST, SSS (can be extended; need to check
2426        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2427    o mdsio: filename info to both stderr, stdout
2428    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2429      from sign change
2430    
2431    checkpoint55j_post
2432    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2433      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2434    o add consistent build directories and .cvsignore files to verification
2435    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2436    o make all subroutines 30 or less characters in length for certain older
2437      compilers to work (a thorough search only turns up two routines in
2438      pkg/ptracers)
2439    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2440      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2441    
2442    checkpoint55i_post
2443    o change arrays for total vertical diffusivity (2.D if explicit,
2444      3.D if implicit) ; each ptracer uses its own background value.
2445    o added mnc/NetCDF output capability to ocn_compon_interf
2446      - added bits to verification/cpl_aim+ocn so that it can run on
2447        ITRDA and other clusters without the mpirun "-wd" option
2448    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2449      configuration
2450    o give MNC the ability to create additional files rather than
2451      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2452      - the default is just less than 2GB which is a practical limit
2453        on many systems
2454    o Compute the non-local term using either KPP vertical diffusivity (=default)
2455       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2456    
2457    checkpoint55h_post
2458    o add verification test "vermix"
2459    o remove all the *_ioinc flags and replace with the single global
2460      outputTypesInclusive flag
2461    o allow to set a vertical profile of vertical diffusivity for T & S
2462    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2463    o useMNC moved from data.mnc to data.pkg
2464    
2465    checkpoint55g_post
2466    o Renaming carbon AD experiments to comply with testreport conventions
2467    o Updating adjoint of Held-Suarez hs94.1x64x5
2468    o Fixing directives for non-ECCO forward_step, after ECCO directives
2469      have been fixed to avoid recomp. of do_oceanic_phys
2470      Works well for global_ocean.90x40x15,
2471      but recomp. issue remains for carbon
2472    o Updating adjoint output for natl_box_adjoint after
2473      pkg/ecco has been modified (see taga c55d_post)
2474    
2475    checkpoint55f_post
2476    o rename to timeave_init_fixed
2477    
2478    checkpoint55e_post
2479    o some delicate re-shuffle of store directives to avoid one
2480      extra call of do_oceanic_physics
2481      affects ecco_the_main_loop.F, do_oceanic_physics.F
2482      checkpoint_lev1_directives.h
2483    o NB: this may break global_ocean adjoint temporarily,
2484      but it is clear how to fix it. Will do later, need this now.
2485    
2486    checkpoint55d_post
2487    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2488    o ecco_cost_weights is modified to 1x1 runs
2489    o modifs to allow observations to be read in as
2490      single file or yearly files
2491    o enable to read exf forcing fields as either
2492      single file or yearly files (flag useExfYearlyFields)
2493    checkpoint55d_pre
2494    
2495    o switch between 2-level and 3-level checkpointing
2496    o add ability of MNC to write local and "partial" (eg. 2D slices where
2497      the full 3D field is never actually stored) arrays to NetCDF files
2498      with the correct (that is, the complete multi-dimensional) set of
2499      array indicies
2500      - used in mom_vecinv() to write the diagFreq output
2501      - tested (demonstrated) in verification/aim.5l_cs
2502    o further mnc-ification
2503      - add verification/lab_sea to the list with mnc setups
2504      - fix undefined mnc v-names in cd_code
2505      - add kpp to mnc output (both snapshot and timeave)
2506    o non-hydrostatic code
2507      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2508        in calc_gw.F
2509      - defaults to viscAh
2510      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2511        friction or Leith) in non-hydrostatic mode, as long as there is
2512        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2513    o pkg/cost
2514      extend simple cost functions to treat time mean quantities
2515      (T,U,V) via cost_accumulate_state from cost_tile
2516    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2517        be 2 times larger than the minimum size the advection scheme requires.
2518        now get a perfect conservation of salt in advect_cs test-exp (updated)
2519    o GGL90 (Gaspar's TKE mixed layer)
2520      - add horizontal diffusion of TKE, requires exchanges in
2521        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2522        default. In OPA there is no horizontal diffusion of TKE but the
2523        mixing coefficients are computed from a horizontal average of TKE of
2524        6 points or so. I think that diffusion has a little more physical
2525        justification.
2526      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2527        was in vain)
2528      - mask tke-variable in ggl90_init
2529    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2530    o fix biharmonic diffusion on CS-grid.
2531    o more obcs stuff
2532      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2533        for reading boundary values. This routine is called from
2534        obcs_prescribe_read
2535      - updated obcs_check
2536      - changed sponge layer relaxation parameter units for days to seconds
2537      - turned off sponge layer by default
2538      - changed argument list of OBCS_CALC to myTime+deltaTclock
2539      - fixed about 35 bugs in obcs_external_fields_load
2540    
2541    checkpoint55c_post
2542    o obcs stuff
2543      - new runtime flags useOBCSprescribe, useOBCSbalance
2544      - re-arranged obcs_calc
2545      - moved exf_getobcs to obcs_prescibe_read
2546        obcs_prescibe_read is called after ORLANSKI stuff
2547        and independent of it (executable can contain all).
2548      - updated obcs_check
2549      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2550        These may be necessary only if tangential velocities are
2551        prescribed at OB, not sure, needs testing.
2552    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2553      which simplifies the calls and passes the ifc check-bounds test
2554    
2555    checkpoint55b_post
2556    o add a 2D scalar, Z location, exchange_2 routine.
2557    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2558      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2559      affects advect_cs results (for the wrong reason): update output.txt
2560    o use a more standard discretization for biharmonic viscosity ;
2561     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2562      affects results of dome set-up: update output.txt
2563    o fix gad_advection.F (CubedSphere part), back to version 1.23
2564    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2565    
2566    checkpoint55a_post
2567    o merged code to
2568      * prescribe/read time-dependent open boundaries
2569        (works in conjunction with exf, cal)
2570      * sponge layer code for open boundaries
2571      * each boundary N/S/E/W now has its own CPP option
2572        (healthy for the adjoint)
2573    
2574    checkpoint55
2575    o up-to-date adjoint of previous breaks
2576      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2577      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2578      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2579      - carbon: * remove tr1-related adjoint verification
2580                * add ptracer as control variable
2581    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2582      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2583    
2584    checkpoint54f_post
2585    o in verification/carbin/ remove experiment related to
2586      ALLOW_PASSIVE_TRACER (array tr1 etc)
2587      code_ad/ input_ad/ results_ad
2588    
2589    o add two new packages
2590      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2591        + subject to optimization (memory)
2592      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2593        + subject to reordering (many GOTOs in the original code)
2594        + so far opps is called for every (i,j) point, and then operates in
2595          the vertical; one may want to reorder the scheme in order operate in
2596          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2597          fields)
2598    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2599      - all verification tests compile and run with linux_ia32_g77
2600      - defaults are compatible with current input files--nothing
2601        should change if you were not previously using MNC
2602      - MNC output has been added in numerous places (eg. timeave)
2603        but there are still a few writes not yet do-able with MNC
2604        (this is in progress)
2605      - flags now allow for either/or/both use of MDSIO and MNC and
2606        documentation will soon follow
2607      - numerous small formatting cleanups for ProTeX
2608    o add version info (via BUILD_INFO.h) to MNC and stdout
2609    
2610    checkpoint54e_post
2611    o add two new packages
2612      - pp81 (Packanowski and Philander, 1981), Richardson number and
2613        stratification dependent mixing
2614      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2615      - these scheme operate in a similar manner as KPP (without ghat, of
2616        course), however there is only one diffusivity that is used for both
2617        temperature and salinity (and passive tracers)
2618    o add offline package
2619    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2620      provided by Stephanie Dutkiewicz
2621    o genmake2: add ability to search for C compilers and cleanup test output
2622      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2623    
2624    checkpoint54d_post
2625    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2626    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2627      leading to additional shift by 5 days each year of integration
2628       (i.e. leading to considerable offset over the years)
2629    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2630    o start with no AB and no initial filtering (staggerTimeStep):
2631      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2632    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2633      (external loading & cpl import/export stay in forward_step.F)
2634    o update coupling interface to work with new staggerTimeStep
2635    o change MDSIO ptracers_pickup.
2636    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2637    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2638    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2639    
2640    checkpoint54c_post
2641    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2642      this affects (truncation error) output.txt of test-exp:
2643       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2644    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2645    o change Qnet to always be the net heat flux, (+upward).
2646      affects (truncation error) output of natl_box exp.: updated
2647    o define the max number of passive tracers in PTRACERS_SIZE.h
2648    o start to test mnc routinely in exp0
2649    o add sea-ice loading (sIceLoad) as a new forcing field.
2650    
2651    checkpoint54b_post
2652    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2653       impressive on Altix and Opteron systems)
2654    o diagnostics can now write NetCDF files through the mnc package
2655    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2656    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2657    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2658      affects (truncation error) output of lab_sea & natl_box exp.: updated
2659    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2660    
2661    checkpoint54a_post
2662    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2663    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2664    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2665    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2666      + internal_wave (shift in writing cg2d_ini_res)
2667    checkpoint54a_pre
2668    
2669    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2670      - modified verification/lab_sea and natl_box_adjoint accordingly
2671    
2672    checkpoint54
2673    checkpoint53g_post
2674    o prepare splitting of thermodynamics: store convect.counter in common block
2675    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2676      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2677    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2678    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2679    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2680    o restore adjointability
2681    
2682    checkpoint53f_post
2683    o modifications that affect AIM experiment results (update output.txt):
2684      - no advection of S at top interface Nr (pkg/generic_advdiff)
2685      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2686    o AIM pkg:
2687      - include stability function into surf.Flux derivative relative to Tsurf
2688      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2689    
2690    checkpoint53e_post
2691    o merged cylindrical coord configuration
2692    o added rotating_tank experiment
2693    checkpoint53e_pre
2694    
2695    checkpoint53d_post
2696    o faulks upgraded: re-generate output.txt that have changed:
2697       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2698    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2699    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2700    o added Sadourny discretization of Coriolis
2701      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2702      - re-enabled use of omega3 (useAbsVorticity)
2703    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2704      vector-invariant equations
2705      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2706    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2707      hopefully without new bugs
2708      - still to do: biharmonic friction for non-hydrostatic w
2709    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2710    o regenerated output for global_ocean_ebm (using -ieee)
2711    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2712      of mom_common/
2713      - simple re-arrangement of instructions within computing loop
2714    checkpoint53d_pre
2715    
2716    checkpoint53c_post
2717    o new version of coupler for AIM+thSIce and Ocean models
2718     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2719     - land: change Evaporation of snow
2720     - aim with thSIce: fix bug in snow-precip.
2721    o changes to calc_gw.F
2722     - bug fix for w^2 term near the bottom boundary
2723     - (hopefully) improve the lateral slip boundary condtions for use with
2724        partial/looped cells
2725      - because the bug fix changes two verification experiments anyway (exp5
2726        and plume on slope), change the lateral boundary condition from half slip
2727        to the value of no_slip_sides
2728    o ebm package wasnt quite up to the parallel task. Fixed that.
2729    o Adjoint of EBM package + verification
2730      * TLM OK
2731      * ADM not sufficient accuracy yet (needs further testing)
2732    
2733    checkpoint53b_post
2734    o Commiting new energy balance model to repository
2735      * package is pkg/ebm
2736      * verif. is verification/global_ocean_ebm
2737      * references are in ebm_driver.F
2738    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2739    C        Global thermohaline circulation. Part I:
2740    C        Sensitivity to atmospheric moisture transport.
2741    C        J. Climate 12(1), 71-82
2742    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2743    C        Global thermohaline circulation. Part II:
2744    C        Sensitivity with interactive transport.
2745    C        J. Climate 12(1), 83-91
2746    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2747    C        Destabilization of the thermohaline circulation
2748    C        by atmospheric eddy transports.
2749    C        J. Climate 7(12), 1870-1882
2750    o Will need long integration testing.
2751    checkpoint53b_pre
2752    
2753    o created pkg/mom_common in preparation for variable viscosity code
2754    o renamed and split ini_mnc_io
2755    o pkg/land: only liquid water can diffuse or run-off
2756    o AIM using land: soil wetness availability account for snow
2757    o added printMapIncludesZeros to EEPARMS namelist
2758    
2759    checkpoint53a_post
2760    o restore TAMC compatiility for exf_constants.h
2761      (no usage of _d in .h)
2762    o Additional storing in KPP in an attempt to fix
2763      TAMC problem with adjoint of KPP code.
2764      (no success...)
2765      Identical code works fine with TAF.
2766    o Fixed verification/natl_box_adjoint experiments.
2767      Initial conditions for Experiments 4 and 5 are now
2768      set to "SEAICE_initialHEFF=0", which is more reasonable,
2769      and hence gives results closer to that of Experiment 2.
2770      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2771    
2772    checkpoint53
2773    o stable checkpoint with up to date adjoint
2774      TLM tests only run for 1st grdchk at the moment. Its unclear if
2775      this is a code problem or a problem with resetting code for g_
2776      variables that is being autogenerated wrong.
2777      Otherwise:
2778       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2779       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2780         are both still in chaos following their security messes.
2781    
2782    checkpoint52n_post
2783    o various build (mostly genmake2) changes including:
2784      - ability to build/run more easily within Cygwin and MacOS X
2785      - more complicated Makefiles with a stronger dependence on Gnu Make
2786    o pkg/seaice modifications
2787      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2788        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2789        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2790      - changed proxy for geostrophic velocity and updated
2791        verification/lab_sea/results/* accordingly
2792      - removed ADI dynamic solver from pkg/seaice
2793      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2794        they caused a segmentation fault under certain circumstances
2795      - removed unused field WATR
2796    o bug fix in exf-package:
2797      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2798         now reflect that.
2799    o small fixes in the cal-package:
2800      - set reference date to first of January for the 'model'-calendar
2801      - failing of cal_CheckDate in cal_FullDate now actually results in a
2802        warning
2803    o small modifications in exf-package to increase flexibility:
2804      - change climtempfreeze from a constant to a runtime parameter that
2805        is specified in data.exf_clim (default = -1.9)
2806      - introduce runtime parameter windstressmax (default = 2.0) that is
2807        specified in data.exf
2808    o fix in pkg/thsice:
2809      - update Evap (Tsf changes) to be consistent with Latent heat flux
2810      - maintain snow precipitation unchanged (even if Tsf >=0).
2811     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2812    
2813    checkpoint52m_post
2814    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2815      this does not change any of the results, because myIter=0 in swfrac always
2816      lead to jwtype=2 (the default anyway), but the call makes little sense
2817      as a default
2818    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2819    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2820      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2821    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2822    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2823    o extending useSingleCpuIO option to work with new exch2 I/O format
2824      - old-style, missing-tile I/O is still accessible by defining CPP
2825        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2826    o monitor package can write to NetCDF files and/or STDOUT
2827    o fix re-definition bug in MNC_GRID_INIT_ALL()
2828    o doc/api_reference added
2829      - a framework for building an API Reference Manual using all
2830        the "protex" comments embedded in the code
2831      - see pkg/generic_advdiff, pkg/mnc for examples
2832    o MNC:
2833      - make myThid the last argument for all subroutines
2834      - new default for the grid files: NO halos
2835      - add useMNC and other run-time flags
2836      - separate per-file-group handling of the unlimited dimension
2837      - early initialization of MNC w/ flags read at the eeboot stage
2838        and lookup tables set in initialize_fixed
2839      - write all MNC output to a freshly-created directory
2840    o thermodynamics sea-ice (thsice) is now tested with testreport.
2841    o test exp. advect_cs: use the standard cs32 grid ; update output.
2842    o Added functionality to grdchk:
2843      pick global i,j,k position (or nearest wet) where to perform check.
2844    
2845    checkpoint52l_post
2846    o new land formulation:
2847      a) use ground enthalpy as prognostic variable to ensure exact
2848         energy conservation.
2849      b) account for water temperature and for latent heat of freezing
2850         in all processes (rain, run-off, ground storage)
2851      c) compute surface and ground temperature implicitly.
2852    o aim_v23 modification for new land model:
2853      a) Treat separately land / ocean / sea-ice surface fluxes
2854         to allow implicit computation of land & sea-ice surface temp.
2855      b) add snow precipitation.
2856    checkpoint52l_pre
2857    
2858    o fix problem (when 1 tile is empty) in min/max monitor.
2859    o fix bug in timeAve (u,vZetatave in common block)
2860    o no restoring terms under ice for pkg/seaice
2861    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2862    o bug fix for pkg/seaice pickups
2863    o change MNC call locations and add coordinate attributes
2864    o mask vorticity at the corner ; affects global_ocean.cs output
2865    o fix ini_curvilinear_grid ; test CS experiments with mpi
2866    o aim.5l_cs: modify sea-ice fraction input file ; update output
2867    o exf: Adding simple range check routine for exf fields after read
2868    
2869    checkpoint52k_post
2870    o removed top-level directory "diags"
2871      - we migrated these functions to pkg/timeave a long time ago
2872    o fixed bug introduced in pkg/monitor
2873    o accuracy ctrlprec = 32 insuffient for gradient checks using
2874      averaged fields (I/O via cost_averages)
2875      -> use ctrl.h in active_file*.F to control I/O precision.
2876    o paramter list of CALL ADTHE_MAIN_LOOP
2877    o added initial do_the_model_io to ecco
2878    o set all ...Freq to zero after cost_final
2879      taveFreq, dumpFreq, pChkptFreq
2880    o MAIN and ECCO differentiability restored
2881    
2882    checkpoint52j_post
2883    o fix nchklev in tamc.h for global_ocean...
2884    o Bringing flow and store directives up-to-date
2885    o Really weird thing!
2886      call do_the_model_io from the_main_loop with parameters
2887      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2888      TAF places a faulty re-call of initialise_varia
2889      after cost_final call which should not be there!
2890    checkpoint52j_pre
2891    
2892    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2893      error messages
2894    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2895    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2896      debug output
2897    o modfied mdsio_writefield.F to handle non-global files under exch2
2898    o update AIM Cubed-Sphere exp (aim.5l_cs):
2899      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2900    o update AIM Equatorial Channel exp:
2901      use standard aim_v23 pkg and change the SST fields to be more realistic.
2902    o globalFile now works with exch2
2903    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2904      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2905    o limit timeave output for hi-res integrations
2906    
2907    checkpoint52i_post
2908    o removed CPP_EEOPTIONS.h from verification/*/code
2909    o updated the tiling for global_ocean_pressure
2910    checkpoint52i_pre
2911    
2912    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2913      the old pkg/aim).
2914    
2915    checkpoint52h_pre
2916    o shortened offending lines in exch2_send_rx?.template
2917    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2918    o genmake2: add build & execute test for NetCDF code
2919    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2920      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2921    o added useSingleCPUIO flag to monitor.F and mon_out.F
2922    o added temporary hack for sea-ice dynamics on the cube:
2923      metric terms are ignored and it is assumed that
2924      there is no sea-ice on cube faces 1, 2, 4, and 5.
2925    
2926    checkpoint52f_post
2927    o added exch2 cube routines to pkg/exch2
2928    o modified hs94.cs-32x32x5 to use it
2929    o added new grid files to hs94.cs-32x32x5
2930    checkpoint52f_pre
2931    
2932    checkpoint52e_post
2933    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2934      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2935    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2936      to work with implicit vertical advection and AB ;
2937    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2938    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2939     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2940    checkpoint52e_pre
2941    
2942    o fix bug in impldiff when Nr=1 or Nr=2.
2943    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2944    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2945    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2946      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2947    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2948    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2949    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2950    
2951    checkpoint52d_post
2952    o re-tiled many expts to allow comparison in multi-processor mode
2953      - updated output accordingly
2954      - changed hs94.128x64x5 to use intial T from file rather than use the
2955        random number generator
2956    o add infrastructure in model routines for fizhi and gridalt packages
2957    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2958    o changes to permit hi-res, cubed-sphere, configuration
2959      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2960      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2961      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2962        of surface winds for the cube
2963      (A verification experiment, based on global_ocean.cs32x15, but with
2964       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2965       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2966       complete with example surface forcing files and matlab scripts to look
2967       at the output and compare it with that of global_ocean.cs32x15.)
2968    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2969       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2970       to conform to the common rule.
2971    o check-in the first version of the coupler + interfaces for multi-components
2972       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2973       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2974       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2975       - ocean and atmos. share the same horizontal grid (no interpolation).
2976       - exchanges between component and coupler is done in forward_step
2977    o new verification experiment, cpl_aim+ocn:
2978       coupled ocean - AIM atmosphere on cs32 grid.
2979    
2980    checkpoint52d_pre
2981    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2982    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2983    
2984    checkpoint52c_post
2985    o Fixing OPTIONS files for use of exf:
2986      - ALLOW_ECCO not needed
2987      - ECCO_CPPOPTIONS.h should not be included from
2988        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2989        as has been the case in the past
2990      - All cal/exf related options are currently set in
2991        single header file. Should remain so until we
2992        agree on a consistent new policy.
2993    o Removed all CPP options for cal package.
2994      cal has no more CPP options.
2995    o modified STOREs in GAD_ADVECTION
2996    o corrected key comp. for passkey
2997    
2998    checkpoint52b_post
2999    o new version: "thsice" of thermodynamic sea-ice pkg:
3000     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
3001     - modify fluxes but do not change theta directly;
3002     - light cleaning of bulk_force pkg (still needed with thsice).
3003     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
3004       + output_thsice.txt to test thsice & bulk_force pkgs.
3005    o put back grid & coriolis monitor output.
3006    checkpoint52b_pre
3007    
3008    o call "do_the_model_io" at the beginning (=> dump initial state)
3009    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
3010    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
3011      (need info on NUMBER_OF_PTRACERS)
3012    o missing PTRACERS headers in some routines
3013    o default tamc.h in pkg/autodiff supposed to crash
3014      to ensure proper customization
3015    
3016    checkpoint52a_post
3017    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
3018      - moved surfaceTendencyTice from pkg/seaice to main code
3019      - subroutine FREEZE_SURFACE now limits only surface temperature
3020        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
3021        => new output.txt for global_ocean.cs32x15 & global_with_exf
3022      - keep the old version of FREEZE for backward compatibility;
3023        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
3024      - corresponding modifs for TAF directives
3025    o added surface flux output variables to TIMEAVE_STATVARS
3026    o time-averaged output for pkg/ptracers
3027    o fix problem with ECCO-related divided adjoint
3028      snapshot file was missing some ad-variables,
3029      but no warning issued by TAF
3030    
3031    checkpoint52a_pre
3032    o some bug fixes for #undef REAL4_IS_SLOW
3033    
3034    checkpoint52 = ecco_c52_e35
3035    o after testing adjoints of checkpoint51u_post
3036    
3037    checkpoint51u_post
3038    o this is the post-merge tag of the ecco-branch
3039      (needs another clean checkout and re-testing)
3040    o various natl_box_adjoint configs and results
3041      but no input fields
3042    o obcs adjoint not yet merged!
3043    o adding ECCO global 1x1 and 2x2 degree configs
3044    o updated/extended some store directives for seaice
3045    o pkg/ecco now containes ecco-specific part of cost function
3046    o top level routines the_main_loop, forward_step
3047      supersede those in model/src/
3048      previous input data.cost now in data.ecco
3049      (new namelist ecco_cost_nml)
3050    o in ctrl/ cleaned some cross-dependencies and updated CPP options
3051    
3052    checkpoint51t_post
3053    o this is the pre-merge tag of the ecco-branch
3054    
3055    checkpoint51s_post
3056    o cleanup: removed various obsolete #define-s
3057    o pkg/grdchk
3058      - renamed 'ph-grd 3' to 'grad-res'
3059      - merged from ecco-branch
3060        (remaining bug fixes for obcs gradient checks)
3061      - additional high-precision output for testreport
3062        (grep for 'precision_grdchk_result')
3063    
3064    checkpoint51r_post
3065    o cleaned up or removed CPP_OPTIONS.h files
3066    o updated results for some of the tests to reflect the new
3067      optfiles (-ieee: -O0 instead of -O3)
3068    
3069    checkpoint51q_post
3070    o cd_code:
3071      - moved cd_scheme.F -> cd_code_scheme.F
3072      - separate read_checkpoint from cd_code_ini_vars.F
3073      - separated cd_code part from write_checkpoint
3074      - updated AD_SOURCE, generated .flow
3075      - added CD_CODE_VARS.h to the_main_loop
3076      - Moving cd_code specific store dir.s to pkg/cd_code
3077    o ctrl package totally restructured
3078      - pack/unpack now optional and decoupled from
3079        xx_/adxx_ I/O
3080      - ctrl_pack/unpack cleaned
3081        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
3082      - confined inclusion of AD_CONFIG.h to where necessary.
3083    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
3084    
3085    checkpoint51p_post
3086    o create initial cd_code package
3087      - WARNING: the initialization of fields within packages
3088        is broken because INI_FIELDS (where READ_CHECKPOINT is
3089        called) is called *before* PACKAGES_INIT_VARIABLES.
3090        This seems to be backwards since
3091        1) its important to initially zero the entire field including
3092           the "halo" region
3093        2) zeroing needs to be done *before* reading pickup info
3094           and the pickup call might or might not happen in any
3095           particular run
3096      - this needs an overhaul for R2
3097    o cleanup verification/*/code/GMREDI_OPTIONS.h
3098    o cleanup testreport
3099    
3100    checkpoint51o_post
3101    o bringing AD-related verif's up to date with genmake2
3102      - carbon/
3103      - global_ocean.90x40x15/
3104      - hs.94.1x64x5/
3105      - (front_relax/ )
3106    o (more) consistent directory structure for AD-related verif.'s
3107    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
3108    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
3109    o bug fix in find_alpha.F for MDJWF:
3110      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
3111        change rho -> rho-rhoConst
3112      - replace call find_rho to find_rhonum
3113    o initialisation of rFlx extended to full array (required by TAF)
3114      and shifted to thermodynamics
3115    o removed PTRACERS.h in ptracers routine
3116    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3117    o Correcting initialisations for fVerU, fVerV.
3118    o helping TAF to recognize dependency on kUp for
3119      fVerU, fVerV
3120    o Replacing delZ by delR in pkg/ctrl/
3121    checkpoint51o_pre
3122    
3123    o undid all of cp51 pending some cleanups and discussion
3124    o added the [#include "AD_CONFIG.h"] statement to all files that need
3125       it for adjoint/tl #defines
3126     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3127     o removed tools/genmake since it no longer works
3128    
3129    checkpoint51n_post
3130    o modifications to make FREEZE flux visible to pkg/kpp
3131      - moved surfaceTendencyTice from pkg/seaice to main code
3132      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3133      - subroutine FREEZE now limits only surface temperature
3134        (this means new output.txt for global_ocean.90x40x15,
3135         global_ocean.cs32x15, and global_with_exf)
3136    o added surface flux output variables to TIMEAVE_STATVARS
3137    
3138    checkpoint51n_pre
3139    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3140    o added [#include "AD_CONFIG.h"] to all files that use the following
3141      defines:
3142      - ALLOW_ADJOINT_RUN
3143      - ALLOW_TANGENTLINEAR_RUN
3144      - ALLOW_ECCO_OPTIMIZATION
3145    
3146    checkpoint51m_post
3147    o incorporating changes to get TAMC/TAF working in genmake2
3148      - added new TAMC/TAF targets to the Makefile
3149      - various cleanups related to package handling
3150      - these changes should have no impact on the forward model
3151    
3152    checkpoint51l_post
3153    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3154     - faster algorithm for cal_addtime.F
3155     - higher precision arithmetic, where needed
3156     - pkg/exf *startdate variables changed from calendar date to
3157       model integration time
3158    
3159    checkpoint51l_pre
3160    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3161    o enable to apply restoring on S & T only in a latitude band.
3162    o update output (external_forcing_surf modif. change truncation errors)
3163       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3164    
3165    checkpoint51k_post
3166    o change default to: useNHMTerms=.FALSE.
3167     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3168       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3169     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3170        exp1, ideal_2D_oce
3171     - change data file of oceanic exp (leave the results unchanged for now)
3172       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3173    o set gravitySign automatically according to the vertical coordinate used
3174      (and change sign: back to "logical" value: +1 when R increases downward)
3175    o added an include barrier to the default CPP_OPTIONS.h and
3176      removed the #include "PACKAGES_CONFIG.h" from it
3177    o fix a bug in mom_fluxform (from chk51j_post)
3178    
3179    checkpoint51j_post
3180    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3181    o adjusted some flow directives (dynamics, thermodynamics)
3182    o added cubed-sphere case to test cost function
3183    o heckpoint_lev?_directives.h now include
3184      pkg-specific directives, whenever those are enabled.
3185    o Moving pkg-specific flow directives to corresponding pkg
3186      Moving pkg-specific differentiation list to corresponding pkg
3187      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3188      ---> conventions are
3189           - pkg_ad.flow
3190           - pkg_ad_diff.list
3191           - pkg_ad_check_lev?_dir.h
3192    
3193    checkpoint51i_post
3194    o merge of the branch-genmake2
3195      - knowingly breaks the older genmake
3196      - automatic generation of all ALLOW_${PKG_NAME} defines
3197      - new testreport supersedes older testscript
3198    o large number of package inclusion and header cleanups
3199    checkpoint51i_pre
3200    
3201    o new output for adjoin of global ocean vector invariant
3202    o fix for checkpoint of thermodynamic seaice and bulk_force
3203    o Steph gchem various cleanups
3204    
3205    checkpoint 51h_pre
3206    o fixed some single quotes
3207    o modify gchem pkg to be more versatile
3208    o modifications to clean up dic pkg
3209    o add pkg/cfc
3210    
3211    checkpoint51g_post
3212    o provide links for ARPACK and ADM*TLM
3213    o start removing verification/vero/
3214    o update AD-related stuff
3215      (in particular some IF-statements in model/src/ routines)
3216    o adding to verification/global_ocean.90x40x15/ adjoint of
3217      vector invariant setup
3218    
3219    checkpoint51f_post
3220    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3221    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3222      of tracer Green's fucntions for ocean inversion project.
3223    
3224    checkpoint51f_pre
3225    o Added on-the-fly spatial interpolation capability
3226        "USE_EXF_INTERPOLATION" to pkg/exf.
3227      - This is a temporary Cartesian-grid hack until
3228        the super-duper ESMF coupler becomes available.
3229      - See verification/global_with_exf/README for usage example.
3230      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3231        flags and modified pkg/seaice accordingly.
3232    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3233        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3234        non-local transport term.
3235    
3236    checkpoint51e_post
3237    o pkg/mom_vecinv:
3238      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3239      - add time-ave diagnostic of vorticity advection.
3240    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3241    o atmospheric geopotential: - include water vapor effect;
3242                                - use p^kappa in p* scaling.
3243    o land pkg: read initial state from files.
3244    o AIM : add stratospheric drag in the upper level
3245    
3246    checkpoint51d_post
3247    o change function ILNBLNK (=> last non-blank char.) to return zero
3248      (instead of the string length) when the string. char is empty
3249    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3250    o modif's to restore TAMC compatibility
3251      - avoid "_d" constructs in PARAMETER declarations
3252      - avoid interrupting lines by comment lines
3253    o Use cluster local disks for purely local I/O
3254      vs. globally visible disks needed for ctrl stuff
3255      (merged from ecco-branch)
3256      - new active_file_loc... and mdsio_..._loc routines
3257      - affected packages: autodiff, ctrl, grdchk, mdsio
3258    
3259    checkpoint51c_post
3260    o introducing integer flag debugLevel
3261      - debLevZero: suppress all output
3262      - debLevA: standard
3263      - debLevB: equivalent to current debugMode=.TRUE.
3264    o introducing pathname variable mdsioLocalDir for mdsio
3265      that can be specified at runtime
3266      (relevant for cluster I/O to local disk)
3267    `
3268    >>>checkpoint51b_post
3269    adjoint of ptracers
3270    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
3271    o extended state in checkpoint_lev?, etc.
3272    o alternative ctrl/cost with tr1 or ptracer
3273    o new comlev1_bibj_ptracers
3274    o new ptracers.flow
3275    o made ptracers_forcing same as external_forcing_s
3276    o added verification for adjoint with ptracers
3277      - adm. grdchk fail so far
3278      - tlm. grdchk OK
3279      - checked tapelev/comlev recomputations: OK
3280    <<<checkpoint51b_pre
3281    
3282    checkpoint51a_post
3283    o added code for biogeochemistry package
3284      - new pkgs: dic, gchem
3285      - new subroutine in ptracers
3286    o modify code for biogeo packages
3287      - in model/src and pkg/ptracers
3288    
3289    checkpoint51
3290    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
3291      - autodiff, ctrl, exf, grdchk, seaice
3292      kept separate packages
3293      - cost, ecco, obcs
3294    o updating verification/internal_wave, verification/lab_sea
3295      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
3296    
3297    checkpoint50i_post
3298    o Preparing next differentiable checkpoint and sync
3299      of MAIN vs. ecco-branch
3300      - 1st step: this one is differentiable
3301      - 2nd step: next(! not this) checkpoint will have updated packages
3302                  from ecco-branch)
3303    
3304    checkpoint50h_post
3305    o new package "land": provide surface BC for AIM.
3306    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
3307    o AIM: use true log-P extrapolation for near surface temp (= as in
3308        F.Molteni paper) ; update aim.5l_cs output.
3309    o New variable in PARM03 for more flexible pickups
3310    o somewhat cleaned package initialisation sequence for
3311      ctrl/ cost/ ecco/ in packages_... routines
3312    
3313    checkpoint50g_post
3314    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
3315      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
3316      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
3317        made the default because of faster convergence than ADI
3318    
3319    checkpoint50f_post
3320    o exf totally restructured
3321      - replaced all exf_set_ routines by one generic exf_set_gen.F
3322        and made sure it's still differentiable
3323      - split exf_getffields.F into new exf_bulkformulae.F
3324      - exf_inscal_/exf_outscal_ suffixes consistent with field names
3325      - updated adjoint/makefile and relevant verif. accordingly
3326    
3327    checkpoint50f_pre
3328     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
3329          + change Evap over land. (update aim.5l_cs output)
3330     o added missing .cvsignores and made uniform across expts
3331     o changed configuration of tidal_basin_2d expt
3332     o added pkg/debug functions for tracing code in fatal crashes
3333     o tidied pkg/monitor to use MONITOR_OPTIONS.h
3334     o new fn in pkg/monitor to stop model if solution grows too big
3335     o removed lots of single quotes from comments
3336    
3337    checkpoint50e_post
3338    o make KPP work with PTRACERS
3339     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
3340       nearly a copy of kpp_transport_s
3341     - there is no analogue to SurfaceTendencyS, so I have to use
3342       gPtr(of the surface layer) instead
3343    o add a new platform SunFire+mpi (SunFire 15000) to genmake
3344    checkpoint50e_pre
3345    
3346    checkpoint50d_post
3347    o change kpp output from multiple-record state files to single-record state
3348      files analogous to write_state.F
3349    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
3350      analogous to the cg2d-related output.
3351    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
3352      so that writing to internal file fn (with length 512) fails.
3353    checkpoint50d_pre
3354    
3355    checkpoint50c_post
3356    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
3357    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
3358    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
3359    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
3360    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
3361    
3362    checkpoint50c_pre
3363    Merging from release1_p13:
3364    o bug fix for pkg/seaice dynamic solver
3365    o Added SEAICE_initialHEFF to pkg/seaice
3366    
3367    checkpoint50b_post
3368    o store u*,v* in gU,V instead of in guNm1,gvNm1
3369    o in order to put the momForcing out of the Adams-Bashforth:
3370      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3371      to timestep.F
3372    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3373    o re-generate output for highly sensitive test-exp:
3374       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3375    
3376    checkpoint50b_pre
3377    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3378    o corrected CPP option mismatch in exf_Bulk... functions for case
3379      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3380    
3381    checkpoint50a_post
3382    o Bug fix for merging between c50 and KPP.
3383      ikey was passed from thermodynamics to kpp_calc via
3384      common block rather than being recomputed in kpp_calc,
3385      in contradiction with new key itdkey.
3386      New key ikppkey created, and tamc.h headers updated.
3387    
3388    checkpoint50
3389    - 2nd step of merge with ecco-branch:
3390      merge changes in ecco-branch back into main trunk
3391    - bug fix in find_alpha
3392    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3393    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3394    - merged some sliced AD support routines
3395    
3396    checkpoint49
3397    merged from ecco-branch:
3398    o exf:
3399      - Enable initialisation of forcing fields to constant
3400        (runtime) values.
3401      - in exf_getffields.F
3402        Reduce i-/j-loop to interior domain, discarding overlaps.
3403        That also fixes wrong TAF-key computations for key_1, key_2
3404        with bulf formulae.
3405      - exf_init.F modify #ifdef for exf_init_evap
3406      - exf_getffieldrec.F, ctrl_getrec.F
3407        The following INT-usages are not safe:
3408          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3409          fldcount = int(fldsecs/fldperiod) + 1
3410        and were modified.
3411    o autodiff: checkpoint_lev...
3412      - updated storing for bulk formulae (some arrays were missing)
3413      - added state for seaice package
3414      - synchronized with main branch
3415    o DIVA:
3416      Modif.s in
3417      - the_main_loop.F
3418      - the_model_main.F
3419      and added cost_final_restore.F cost_final_store.F
3420      o With these changes, it is possible to fully separate
3421        the first forward run to compute the cost function (mdthe_main_loop)
3422        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3423        into separate model executions.
3424        This enables better tuning of DIVA to given queue sizes.
3425      o Loss of cost function value in consecutive DIVA runs is
3426        fixed by storing to 'costfinal' file.
3427      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3428        beginning/end of adjoint integration is accounted for.
3429      The current changes apply to TAF-1.4.26.
3430      TAF has one remaining bug, requiring one manual change
3431      (see MITgcm manual).
3432    o cal: synchronized between MAIN and ecco-branch
3433    
3434    checkpoint48i_post
3435    o Changes to restore differentiability of code w.r.t. previous tag
3436      (mostly adding new routines to make list and replacing
3437      pressure by totPhiHyd).
3438    o Updated and merged grdchk package
3439      - has both ADM and TLM checks
3440      - works for single- and multi-proc.
3441      - output cleaned
3442      - worked successfully for parallel DIVA
3443    o genmake:
3444      - Adding -platform=SP4
3445      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3446    o Modif. for DIVA:
3447      ctrl_unpack should not be called in intermediate DIVA interval.
3448      (similar thing would apply for active files such as
3449      tbar, sbar, psbar, which should not be reinitialised;
3450      only relevant for ecco-branch)
3451    
3452    checkpoint48h_post
3453    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3454    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3455    o Added SEAICE_initialHEFF to pkg/seaice
3456    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3457    
3458    checkpoint48g_post
3459    --- EOS:
3460    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3461      store total Potential in totPhyHyd for diagnostics & EOS.
3462    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3463    --- Pressure/geopotential gradient:
3464    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3465    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3466      ( changes results of global_ocean_pressure )
3467    o NLFS + z-coord.: add eta*Rho' contribution.
3468    o accurate phiHyd when using interface-W at the middle between 2 centers
3469     ( changes results of ideal_2D_oce )
3470    o includes r* 2nd term in potential gradient.
3471    
3472    checkpoint48f_post
3473    Merging from release1_p12:
3474    o Modifications for using pkg/exf with pkg/seaice
3475      - improved description of the various forcing configurations
3476      - added basic radiation bulk formulae to pkg/exf
3477      - units/sign fix for evap computation in exf_getffields.F
3478      - updated verification/global_with_exf/results/output.txt
3479    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3480      (SBO) core products, including oceanic mass, center-of-mass,
3481      angular, and bottom pressure (see pkg/sbo/README.sbo).
3482    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3483      to avoid negative values in shallow regions.
3484      - updated verification/natl_box/results/output.txt
3485      - updated verification/lab_sea/results/output.txt
3486    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3487    o Added useSingleCpuIO option (see PARAMS.h).
3488    o Updated useSingleCpuIO option in mdsio_writefield.F to
3489      work with multi-field files, e.g., for single-file pickup.
3490    o pkg/seaice:
3491      - bug fix in growth.F: QNET for no shortwave case
3492      - added HeffFile for specifying initial sea-ice thickness
3493      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3494    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3495      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3496    o pkg/seaice:
3497      - adjoint-friendly modifications
3498      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3499    
3500    checkpoint48e_post
3501    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3502    o dynamics: change definition of computational domain & adapt mom_fluxform
3503      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3504    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3505        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3506        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3507        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3508        inverted_barometer solid-body.cs-32x32x1
3509      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3510    
3511    checkpoint48d_post
3512    o in preparation for r*:
3513     a) use pre-computed gradient of hydrostatic potential:
3514        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3515     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3516        => affects results of glob_oce_pressure (different truncation error)  
3517      update output.txt of ideal_2D_oce & global_ocean_pressure
3518    
3519    checkpoint48d_pre
3520    o in preparation for r*:
3521      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3522      pass the 2 comp. of the grad. as arguments to momentum S/R.
3523      but for the moment, only used if it does not change the results.
3524    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3525    
3526    checkpoint48c_post
3527    Modifications in treatment of initial flux forcing controls
3528    to avoid extra storing of flux fields.
3529    
3530    checkpoint48c_pre
3531    o Added tidal_basin_2d experiment (currently 1D!)
3532    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3533    
3534    checkpoint48b_post
3535    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3536     (modification to pressure gradient not yet implemented)
3537    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3538      (for U & V) that are used for vertical advection of momentum.
3539    
3540    checkpoint48a_post
3541    o In preparation for r*, use temp. array to compute vertical transport
3542       in flux-form momentum pkg. => change results of few test-exp.
3543      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3544                        lab_sea, natl_box & plume_on_slope
3545    
3546    checkpoint48
3547    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3548    
3549    checkpoint47j_post
3550    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3551    o moved adexch from forward_step to addummy_in_stepping
3552    o added exch in ctrl_map_...
3553    o aveFreq.=0. at end of cost_final to avoid overwrite in
3554      reverse checkpointing loop
3555    o Yet more changes in gmredi:
3556      * adgmredi_calc_tensor
3557        avoiding all recomputation of gmredi_slope_limit
3558      * adgmredi_x/y/rtransport
3559        added flag for excessive storing to avoid recomp. of
3560        u/v/rtans, dTdx/y/z
3561        -> this is not really necessary and very memory-consuming
3562      * adgmredi_slope_psi:
3563        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3564      * gmredi_slope_limit
3565        re-activated full calculation of taperfct for case 'ac02'
3566    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3567    
3568    checkpoint47i_post
3569    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3570    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3571      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3572    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3573    o gmredi: fix few bugs.
3574    
3575    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3576    This will be a good checkpoint to plug into the ecco-branch.
3577    o few modif.'s to get latest version adjointed
3578      (mainly kick out code in ini_linear_phisurf)
3579    o modif's to run adjoint with exactConserv
3580    o case GM_BOLUS_ADVEC should be cleaned
3581      S/R gmredi_slope_psi should be cleaned
3582    o verification/carbon now has exactConserv=.TRUE.
3583    
3584    checkpoint47g_post
3585    o time-average AIM output: becomes independent from statvars time-average
3586      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3587    o After TAF bug fix:
3588      Tested adjoint of gmredi package.
3589      Tests were done with checkpoint47 rather than with latest
3590      checkpoint47f_post since the latter is broken for the adjoint
3591      verification/carbon/ contains both ADM and TLM gradient checks.
3592    Here they are, before they get changed/lost/stolen.
3593    Mostly modif.'s to fix numerical sensitivities.
3594    Gradient checks OK for
3595    - GM_taper_scheme:
3596      * clipping
3597      * ac02
3598      * linear
3599      * glw91
3600      * dm95
3601      * ldd97
3602    - GMREDI_OPTIONS:
3603      * GM_VISBECK_VARIABLE_K
3604      * GM_NON_UNITY_DIAGONAL
3605      * GM_EXTRA_DIAGONAL
3606      * GM_BOLUS_ADVEC
3607    in conjunction with data.gmredi parameters to be checked in
3608    in a few minutes under verification/carbon/code/
3609    
3610    checkpoint47f_post
3611    Merging from release1_p10:
3612    o modifications for using pkg/exf with pkg/seaice
3613      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3614        and SEAICE_EXTERNAL_FLUXES
3615      - pkg/exf CPP options EXF_READ_EVAP and
3616        EXF_NO_BULK_COMPUTATIONS
3617      - usage examples are Experiments 8 and 9 in
3618        verification/lab_sea/README
3619      - verification/lab_sea default experiment now uses
3620        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3621    
3622    checkpoint47e_post
3623    o created a tag prior to creating a branch
3624    
3625    checkpoint47d_post
3626    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3627      at the bottom boundary had an erroneous half slip boundary condition
3628    o added bottom drag and no slip boundary condition capabilities to
3629      oceanic pressure coordinates code
3630    o added new verification experiment global_ocean_pressure, this experiment is
3631      also described in the tutorial section of the manual
3632    checkpoint47d_pre
3633    
3634    checkpoint47c_post
3635    o Added a verification experiment for a global cubed-sphere ocean run
3636      -  verification/global_ocean.cubed32x32x30
3637      -  uses pkg/therm_seaice and pkg/bulk_forcing
3638    
3639    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3640    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3641      when using P-coordinate; only implemented for atmospheric config.
3642    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3643      NOTES: requires option NONLIN_FRSURF to be "#define".
3644    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3645    
3646    checkpoint47b_post
3647    Merging from release1_p9:
3648    o pkg/seaice
3649      - removed GOTO's and added taf directives
3650      - double precision constants to reduce the g77 (Linux)
3651        to F77 (SGI) differences reported in release1_p8
3652    o tools/genmake
3653      - added SGI options
3654    o verification/testscript
3655      - updated to that of checkpoint47a_post
3656    o verification/global_ocean.90x40x15/input/eedata
3657      - modified for SGI f77 compatibility
3658    o verification/lab_sea
3659      - added description of sea-ice model
3660      - added missing matlab routines
3661      - added test of thermodynamics parallelization
3662    
3663    checkpoint47a_post
3664    o new pkg: aim_v23
3665     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3666       for now, keep the same surface forcing as before.
3667     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3668     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3669     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3670    o add diagnostic of surface correction term in monitor output
3671    
3672    o bulk_force and therm_seaice
3673    - Two packages:  bulk_force (Bulk forcing)
3674      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3675    - Earlier integration from Stephaine Dutkiewicz
3676      and Patrick Heimbach.
3677    - Two ifdef statements for compile time,
3678       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3679    
3680    checkpoint47
3681    differentiable version of checkpoint46n_post
3682    o bug fix in quasihydrostaticterms
3683    o * "clean" adjoint code (in terms of extensive recomputations)
3684        can now be obtained for all GMREDI options (i.e. for
3685        - GM_VISBECK_VARIABLE_K
3686        - GM_NON_UNITY_DIAGONAL
3687        - GM_EXTRA_DIAGONAL
3688        - GM_BOLUS_ADVEC )
3689      * However, wrong gradient check problem remains unsolved.
3690      * New CPP options have been introduced for different
3691        tapering schemes
3692    o external_fields_load now part of differentiation list
3693    o pressure needs multiple storing;
3694      would be nice to have store_pressure at beginning or
3695      end of forward_step, e.g. by having phiHyd global (5-dim.)
3696      (NB: pressure is needed for certain cases in find_rho,
3697      which is also invoked through convective_adjustment).
3698    o recomputations in find_rho for cases
3699     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3700    o #define ATMOSPHERIC_LOADING should be differentiable
3701    o ini_forcing shifted to begining of initialise_varia
3702    o Incorporating QNVS line search routines into MITgcm
3703      (this is separate code, and therefore not under pkg)
3704      lsopt/, optim/
3705    o Updated verification/carbon/
3706      - #define GM_VISBECK_VARIABLE_K
3707      - GM_taper_scheme    = 'ldd97'    
3708    
3709    checkpoint46n_post
3710    Merging from release1_p8:
3711    o verification/natl_box:
3712      updating new external_fields_load routine
3713    o New package: pkg/seaice
3714      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3715      The sea-ice code is based on Hibler (1979-1980).
3716      Two sea-ice dynamic solvers, ADI and LSR, are included.
3717      In addition to computing prognostic sea-ice variables and diagnosing
3718      the forcing/external data fields that drive the ocean model,
3719      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3720      The implied surface heat flux is then stored in variable
3721      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3722      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3723      non-local transport term.  Because this call precedes model
3724      thermodynamics, temperature under sea-ice may not be "exactly" at
3725      the freezing point by the time theta is dumped or time-averaged.
3726      N.B.: fairly large differences in accuracy occur across
3727            different platforms/compilers; comparison between
3728            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3729            generated output gives:
3730       T           S           U           V
3731      C D M    c        m  s        m  s        m  s        m  s
3732      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3733      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3734      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3735    
3736      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3737    o GAD:
3738      - generated new common blocks to account for call of
3739        same gad routines with differing traceridentities
3740        (needed to modify tracerIdentity indices in GAD.h)
3741      - generated separate common blocks for case useCubedSphereExchange
3742        (Department of Futurology)
3743      - parameter lists to gmredi_?transport: added tracerIdentity
3744      - added new key indices to tamc.h
3745    o external_fields_load:
3746      - added this routine to TAF list
3747      - needed to make some common blocks global and additional storing
3748        along the same lines as exf package (checkpoint_lev?_directives.h)
3749    o exf:
3750      updated external forcing package
3751      - bug fixes carried over from ecco-branch
3752        (missing OBCS_OPTIONS.h in two routines)
3753      - enable easy to use "no forcing".
3754      - added exf I/O for atmospheric loading
3755      - added exf I/O for runoff data
3756      - transfered scaling between exf <-> MITgcm to exf namelist
3757    o Adding new verification experiment global_with_exf.
3758      This verification experiment is almost identical to the
3759      global_ocean.90x40x15 experiment, except that it uses
3760      the exf (and cal) package instead of the
3761      external_fields_load routine (cf README file).
3762    
3763    checkpoint46m_post
3764    o modified testscript to return -- when there are no lines of "%MON" output
3765    o added new flag "quasiHydrostatic" for QH mode
3766      and new routine quasihydrostaticterms()
3767    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3768      New routine: mom_u_coriolis_nh()
3769    o fixed sign of non-hydrostatic metric terms in u and v equations.
3770      Depend on correct sign of gravitySign.
3771    o added work.pc* to .cvsignore in aim directories using ifc
3772    o introduced flag for controllin non-hydrostatic metric terms
3773    o removed gravitySign from PARM04
3774    o switched to g77/ifc from pgf77 in aim experiments
3775    
3776    checkpoint46l_post
3777    o made convective adjustment work with pressure coordinates:
3778     - changed the direction of k-loop in convective_adjustment.F for the
3779       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3780     - adjusted the reference pressure k-index in convective_adjustment.F
3781     - adjusted the convection condition in convect.F (in analogy to
3782       calc_ivdc.F)
3783     - convective_adjustment no longer computes anything on the halos
3784     - removed the warnings about negative salinity from find_rho.F and
3785       find_alpha.F; instead the new routine look_for_neg_salinity, called
3786       at the beginning of find_rho, find_alpha, and find_beta, does a
3787       check of the entire slice, if CPP-option
3788       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3789    checkpoint46l_pre
3790    
3791    checkpoint46k_post
3792    o fixed the verification/global_ocean.90x40x15 experiment:
3793     - new bathymetry (the world according to A., JMC, and M.)
3794     - new initial fields and forcing fields (*.bin files)
3795     - new POLY3.COEFFS (for the next release one should switch to a full
3796       equation of state: JMD95P or MDJWF)
3797     - fixed several errors and redundancies in the data file
3798     - experiment uses looped cells
3799     - added matlab directory with diagnostic scripts for plotting of output
3800    
3801    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3802     - read AIM physics parameters from a file (data.aimphys)
3803     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3804    
3805    checkpoint46j_post
3806    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3807    o move wVel computation at the end of the time step, in S/R integr_continuity
3808    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3809    o update timeave pkg for wVel diagnostic.
3810    checkpoint46j_pre
3811    
3812    checkpoint46i_post
3813    o Clean up AIM package (and keep the results unchanged):
3814      include CPP_OPTION and use IMPLICT NONE in all routines ;
3815      declare all the variables _RL ; use _d 0 for all numerical constants.
3816      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3817    
3818    checkpoint46h_post
3819    o cleaned up the use of rhoNil and rhoConst.
3820      - rhoNil should only appear in the LINEAR equation of state, everywhere
3821        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3822        and the dynamical equations are all divided by rhoConst
3823    o introduced new parameter rhoConstFresh, a reference density of fresh
3824      water, to remove the fresh water flux's dependence on rhoNil. The default
3825      value is 999.8 kg/m^3
3826    o cleanup up external_forcing.F and external_forcing_surf.F
3827      - can now be used by both OCEANIC and OCEANICP
3828    checkpoint46h_pre
3829    
3830     Added code to convert surface volume flux (fresh water) into
3831     a mass flux when using P coordinates in the ocean (OCEANICP).
3832     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3833    
3834    checkpoint46g_post
3835    o Include a new diagnostic variable phiHydLow for the ocean model
3836      - in z-coordinates, it is the bottom pressure anomaly
3837      - in p-coordinates, it is the sea surface elevation
3838      - in both cases, these variable have global drift, reflecting the mass
3839        drift in z-coordinates and the volume drift in p-coordinates
3840      - included time averaging for phiHydLow, be aware of the drift!
3841    o depth-dependent computation of Bo_surf for pressure coordinates
3842      in the ocean (buoyancyRelation='OCEANICP')
3843      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3844        Theta, Salinity, and Pressure in the parameter list. This routine is
3845        presently contained in find_rho.F. This routine does not give the
3846        correct density for 'POLY3', which would be a z-dependent reference
3847        density.
3848    o cleaned up find_rho
3849      - removed obsolete 'eqn' from the parameter list.
3850    o added two new verification experiments: gop and goz
3851      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3852    checkpoint46g_pre
3853    
3854    checkpoint46f_post
3855    o Enable tangent linear (forward mode) gradient checks:
3856      - extended active file handling to g_... files
3857      - added TANGENT_SIMULATION to theSimulationMode
3858      - extended grdchk package accordingly
3859    o added tangent linear setup in verification/carbon/code_ftl
3860    o added adjoint setup in verification/front_relax/code_ad
3861    
3862    checkpoint46e_post
3863    o Added new equation of state -> MDJWF
3864      - EOS of McDougall et al., 2002, JAOT, submitted
3865      - caveat: the equation of state is only valid for a smaller (more
3866        realistic?) range of values than JMD95P/Z and UNESCO
3867      - added masks to the calculation of pressure in store_pressure
3868      - added more check values for density in check_eos (ini_eos.F), some of
3869        the old check values are out of the range of the MDJWF-eos, so don't
3870        expect perfect matches for those
3871    checkpoint46e_pre
3872    
3873    checkpoint46d_post
3874    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3875      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3876      case of pressure coordinates. eosType='JMD95Z' in
3877      combination with buoyancyRelation='OCEANICP' now causes an error.
3878    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3879      in find_alpha/beta.
3880    checkpoint46d_pre
3881    
3882    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3883      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3884    
3885    checkpoint46c_post
3886    o Changes necessary for ocean in p-coordinates
3887     -  Added new buoyancy relation = 'OCEANICP'
3888     -  Added new parameters = gravitySign (this used to be contained inside
3889        the factor dRdZ which I added when we first switched to R coordinates).
3890     X GM/Redi is not compatible (yet)
3891     X bottom drag and no-slip need to be debugged.
3892    checkpoint46c_pre
3893    
3894    checkpoint46b_post
3895    o Added new equation of state -> JMD95Z and JMD95P
3896      - EOS of Jackett and McDougall, 1995, JAOT
3897      - moved all EOS parameters into EOS.h
3898      - new routines ini_eos.F, store_pressure.F
3899    o Added UNESCO EOS, but not recommended because it requires
3900      in-situ temperature (see JMD95)
3901    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3902      unesco.f to be used with POLY3
3903    checkpoint46b_pre
3904    
3905    checkpoint46a_post
3906    o Added (atmospheric) pressure loading
3907      - new field in FFIELDS.h, etc...
3908      - new cpp flag ATMOSPHERIC_LOADING
3909    o Changed hFacC to _hFacC in calc_phi_hyd.F
3910    o Added SHORTWAVE_HEATING to some files for consistency
3911    checkpoint46a_pre
3912    
3913    checkpoint46
3914    further merges from release1_p5
3915    o new ctrl package
3916      - adopted from ECCO environment to enable optimization
3917      - added Eliassen Palm fluxes to controls
3918    o added Eliassen Palm flux controls to gradient check package
3919    o cost package
3920      - Compatible with new ctrl package
3921      - added Eliassen Palm cost hooks
3922      - modif's of existing cost functions
3923    o Adjoint-related bug fixes in kpp:
3924      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3925      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3926    o autodiff package
3927      - flow directives:
3928        + new for S/R do_the_model_io
3929        + enhanced for S/R checkpoint
3930        + new gmredi.flow
3931      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3932        disable adcommon.h/g_common.h by default.
3933      - fixed problem for adjoint of global_max
3934    o modified verification/carbon/
3935    o New setup for adjoint of global_ocean
3936    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3937    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3938    o incorporated hooks for sponge layer code (external_forcing.F)
3939    
3940    checkpoint45d_post
3941    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3942    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3943      (affects plume_on_slope "cg2d" output)
3944    o add new parameter deltaTfreesurf for free-surface time stepping
3945    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3946    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3947    o change phiMin in exp1 (to agree with documentation)
3948    o add new flags:
3949     - T,S forcing inside/outside Adams-Bashforth
3950     - turn off temp,salt advection and/or forcing
3951     - for each tracer, define internal flag for multiDimAdvection & A-B
3952    o monitor: change definition of KE to check conservation of Energy
3953    
3954    checkpoint45c_post
3955    o Removed f90 comments ("!")
3956    o Modified initialisations to enable exf package for MITgcm
3957      (without invoking ECCO_PACKAGE).
3958    o modifications to gradient check package (Martin Losch)
3959      - enable centered differences
3960      - modified format of standard output
3961    
3962    checkpoint45b_post
3963    o cleaned exchange calls in cg2d
3964    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3965    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3966      to configure barotropic setup (Martin Losch)
3967    o moved some initialisations within bi,bj loop in dynamics
3968      (TAF flow dependency)
3969    o in initialise_varia, moved call packages_init_variables
3970      before convective_adjustment_init
3971      (corresponding adjustment of TAF tape initialisation).
3972    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3973    
3974    checkpoint45a_post
3975    o compute Rho over the whole domain (extend iMin,jMin indices)
3976    o specific exchange for X-slice domain (case Ny=1)
3977    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3978    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3979    
3980    checkpoint44h_post = checkpoint45
3981    o Fix to restore differentiability:
3982      place at which packages_init_variables is called in
3983      initialise_varia is crucial for reverse control flow.
3984    o modifications in GMRedi to enable stable adjoint
3985      (corresponding modif's in thermodynamics, dynamics)
3986    o added missing hook for sponge layer code in external_forcing
3987    o modified test cost functions
3988    o storing in gad_advection (plus removal of write(0,*)!
3989    o missing headers TR1.h added in convective_adjustment routines
3990    o errorMessageUnit set non-equal zero in eeboot
3991      (conflict on some platforms, e.g. IBM SP3)
3992    o modified carbon verif.
3993    
3994    checkpoint44h_pre
3995    o vertical grid option: allow to put the Interface at the middle between
3996      2 cell-centers ; replace delZ in pkg/kpp by drF.
3997    o GM Advective form: Tracers are advected using the residual transport (=
3998      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3999    
4000    checkpoint44g_post
4001    o fix surface correction term in multiDimAdvection (affects plume_on_slope
4002      results) ; ifdef missing in thermodynamics.F
4003    
4004    checkpoint44f_pre,checkpoint44f_post
4005    o added PTRACERS package
4006      This allows an arbitrary number of passive tracers to be integrated
4007      forward simultaneously with the dynamicaly model.
4008      + Implemented so far:
4009        - basic forward algorithm (time-stepping, advection, diffusion, convection)
4010        - I/O and checkpointing
4011        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
4012      + Not implemented so far:
4013        - KPP
4014        - OBCS
4015      + No specific example supplied (yet) but global_ocean.90x40x15 has the
4016        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
4017        line in data.pkg.
4018      + This package is disabled by default since it increases storage.
4019    
4020    
4021    o testscript: added -cleanup option
4022    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
4023                 b) enable to filter 2D fields.
4024    
4025    checkpoint44e_pre,post
4026    o re-wrote convective adjustment to use pre-calculated weights
4027      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
4028      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
4029      Original calls to convect() still in place.
4030    
4031    chkpt44d_pre,post
4032    o added missing EXCLUDE_MONITOR flags
4033    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
4034      (incompatible typ in MIN/MAX expressions caused problems
4035      on IBM SP3)
4036    o in genmake added variable MAKEDEPEND
4037      plus resetting for case SunOS
4038    o added timer_stats.c routine for IBM SP3
4039    o removed variables in dynamics
4040    !!! I forgot to create tag chkpt44d_pre !!!
4041    !!! But chkpt44d_pre = chkpt44c_post    !!!
4042    
4043    o real fresh water flux implemented with non-linear free-surface.
4044    
4045    chkpt44c_pre,post
4046    o few fix (mask in shap_s2, EmPmR in external_field_load,
4047      USE_NATURAL_BCS in solve_for_P);
4048    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
4049    
4050    checkpoint44b_pre/_post
4051    o merge of relevant stuff from the ecco-branch:
4052      - genmake: removed $S64 overwrite for case SunOS
4053      - pkg/exf: update and corrections for field swapping and obcs
4054      - pkg/ecco: parameter lists for the_model_main, the_main_loop
4055                  harmonized between ECCO and MITgcm
4056      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
4057                      updated checkpointing_lev... lists for obcs
4058      - model/src: minor changes in forward_step, plot_field
4059                   added directive for divided adjoint in the_main_loop
4060      - pkg/mdsio: added mdsio_gl_slice
4061    
4062    o check parameters & config (chkpt44a_pre,post)
4063    o OBC and NonLin_FrSurf.
4064    
4065    checkpoint44
4066    o fix bug in mom_vi_del2uv
4067    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
4068    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
4069    o update AIM experiments (NCEP input files)
4070    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
4071    o added some stuff for AD
4072    
4073    checkpoint43
4074    o added two new advection tests
4075    o added global 4x4 degree ocean test
4076    o added test of H&S94 with free surface on cube
4077    o some final mods for gradient check, adjoint,...
4078    
4079    checkpoint42
4080      Fixed AD-related problems:
4081    o Store directives up-to-date with re-arranged Adams-Bashforth
4082      (mainly thermodynamics.F)
4083    o New store directives for multi-dim. advection schemes
4084      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
4085      * new common block and key passkey
4086      (mainly gad_advection.F)
4087    o Modified store directives for split of dynamics/thermodynamics
4088      for the case ALLOW_KPP
4089    o Cleaned argument list for timestep_tracer.F
4090    
4091    checkpoint41
4092    o re-formatted/added comments in prologues of key subroutines
4093      to work with protex
4094    
4095    checkpoint40
4096    o moved calc_gs, calc_gt and calc_tr1 back to model/src
4097    o added FLT (floats) package from Arne along with demo. experiment
4098    o re-arranged Adams-Bashforth scheme for tracers to allow easier
4099      implementation of forward-in-time forcing terms
4100    o more mods for non-linear free-surface including new variable
4101    o modified multi-dim method to work on cube
4102    o bug fix in KPP (from DM)
4103    
4104    checkpoint40pre9
4105    o added DST advection schemes
4106    o fix MPI bug on SGI's
4107    o modifications for non-linear free-surface
4108    o fixed conditionals for fixed flow/passive tracer only mode
4109    o added tension/strain form of stress tensor
4110    o changes to commenting of arguments for TAF/TAMC
4111    o added/updated many matlab scripts
4112    o added multi-dimensional advection method for tracers
4113      
4114    checkpoint40pre8
4115    o new package rw/
4116      Added method for dumping intermediate local arrays:
4117      mdsio_writetile - same as mdsio_writefield except works from inside
4118                        bi,bj loop
4119      mdsio_writelocal - same as mdsio_writetile except works for local
4120                         arrays
4121      write_local_r? - higher-level wrapper for mdsio_writelocal
4122      Controlled by diagFreq. Defaults to zero (ie. no dumps)
4123      Example given at end of mom_vecinv.F that dumps some local arrays.
4124    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
4125      control flux-form versus vector invariant code.
4126      Switch is runtime flag vectorInvariantMomentum (defaults to false)
4127      or genmake -DISABLE ...
4128    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
4129      (additional storing is now needed for case vecinv;
4130      currently nothing implemented to switch this storing off
4131      in case fluxform is used since no CPP flag available).
4132    
4133    checkpoint40pre7
4134    o bug fix in dynamics.F
4135      calc_viscosity called before k=1,Nr loop.
4136    o added some #ifdef's ALLOW_PASSIVE_TRACER
4137    o cleaned initialisations in ctrl_map_ini
4138      related to TAF
4139    
4140    checkpoint40pre6
4141    o split dynamics into thermodynamics & dynamics
4142    o corresponding split of calc_diffusivity into
4143      calc_diffusivity, calc_viscosity
4144      (kpp_calc_diff, kpp_calc_visc).
4145    o Added diffkr, kapgm to control variables
4146    o bug fix in gmredi_slope_limit for ldd97
4147    
4148    checkpoint40pre5
4149    o proper initialization of Adams-Bashforth time stepping
4150      + uses forward step for very first step of model (iter=0)
4151    o re-generated *all* output since almost all output is modified by this
4152      change (sorry but we've been putting this one off for about 2 years)
4153      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
4154        *not* regenerated since they are already out of date and I don't
4155        want to create the impression that they are suddenly working.
4156    o removed KAP stuff for DEC's
4157    o modified/added many .cvsignore files in */code and */input
4158    o added new expt "solid-body.cs-32x32x1"
4159      + this uses an alternative form of ini_curvilinear_grid.F which
4160        is not necessarily any better than the current one...
4161    
4162    checkpoint40pre4
4163    o added re-initialisations of utrans,vtrans,rtrans in
4164      calc_common_factors which are crucial for TAF.
4165    o extended iMin,jMin range for calc_common_factors,
4166      calc_diffusivity
4167    o added option ALLOW_PASSIVE_TRACER
4168    o a few minor updates and fixes
4169    
4170    checkpoint40pre3
4171    o created calc_gtr1.F for gad package
4172    o split the_main_loop and re-introduced forward_step
4173    o some recomputations of nIter0 for TAMC
4174    
4175    checkpoint40pre2
4176    o Updated to latest branch of AJA, JMC
4177    o Added gradient check package
4178    o Added routines for passive tracer handling
4179    o Added carbon sequestration sensitivity experiment
4180    
4181    checkpoint39
4182     o Modifications and fixes to support TAMC
4183       (mainly missing or wrong directives)
4184     o Corrected common blocks when fooling TAMC to produce adjoint I/O
4185       in addummy_in_stepping
4186     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
4187     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
4188     o Included following packages:
4189       cal: calendar
4190       exf: external forcing
4191       ecco: essential routines to control use of cal, exf
4192             (NB: this is not the full ECCO environment)
4193     o disabled some packages by default in genmake
4194    
4195    checkpoint38
4196     o see notes_c37_adj.txt
4197     o corrected wrong layer index in external_forcing_t
4198     o replaced the_main_loop/forward_step by the_main_loop
4199     o removed forceoutput from write_state
4200       (replaced criteria for initial/final state)
4201     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
4202    
4203    checkpoint37
4204     o mdsio.F routine split and packaged in pkg/mdsio
4205       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
4206        used unless genmake -disable=mdsio)
4207     o allow a more precise surface-geopotential gradient for the atmosphere
4208       taking into account the change in space of Alpha (=1/rho) at the surface.
4209     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
4210       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
4211     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
4212       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
4213       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
4214     o Time-Average diagnostics defined as a pseudo package "timeave".
4215     o pickup files : old pickup (before c35) did not work with new code (c35
4216       and after) unless activating 2 commented lines in initialise-varia.
4217     o Non-Hydrostatic pickup file Pb fixed.
4218     o bug with Rigid-lid version (since c35) fixed.  
4219    
4220    checkpoint36
4221     o implement Crank-Nickelson barotropic time-stepping
4222     o recover Time-Average diagnostics
4223     o fix Pb in checkpoint (PR#19)
4224     o AIM become a standard package ; clean unused CPP_kees
4225    
4226    checkpoint35
4227     o subtantial rewrite of dynamics.f
4228     o allows staggered time-stepping
4229     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
4230     o added bottom drag (linear + quadratic)
4231    
4232    checkpoint34
4233     o Modified exchange routines for correct reverse simulation.
4234     o Added verification output to comply with bug fix in impldiff.F
4235       as of c33 (exp2, natl_box).
4236     o Corrected store directives in dynamics.F
4237     o Corrected array boundaries in impldiff.F
4238     o Corrected array dimensions in gmredi.
4239       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
4240     o Added routine GLOBAL_SUM_INT to global_sum.F
4241     o Added mdsio_gl.F for ECCO purposes.
4242    
4243    checkpoint33
4244     o Fixed bug in lower BC in impldiff.F
4245     o Fixed confusion about units of forcing arrays in FFIELDS.h
4246       namely Fu,Fv,Qnet,Qsw,EmPmR:
4247       - Removed verification/natl_box/code/external_fields_scale.F
4248         (did not differ from that in model/src)
4249       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
4250         (see FFIELDS.h for description)
4251       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
4252         kpp_calc.F and kpp_transport_t.F
4253       - Removed model/src/external_fields_scale.F and calls to it
4254       - verification/natl_box uses flux data with "atmospheric" sign so
4255         a special version of external_fields_load.F is used to
4256         change the data as it's read in. This way, the arrays
4257         have the right units and signs at all times tha a user could
4258         possibly use them.
4259     o Corrected genmake to delete a temporary file during configuration
4260    
4261    checkpoint32
4262     o Scaling of forcing fields moved from external_forcing.F to
4263       external_fields_scale.F, called directly after loading fields.
4264     o Surface relaxation terms added to surface tendency fields in
4265       extra subroutine.
4266     o impldiff.F changed to avoid storing by TAMC of huge intermediate
4267       fields.
4268     o Changes in GMRedi to comply with packaging structure.
4269     o Modifications and bug fixes in KPP package.
4270     o Verification experiment for KPP added (verification/nat_box/)
4271    
4272    checkpoint31
4273     o Packages interface brought in line with defined standard
4274       -> new routines packages_...F
4275       -> changes in initialise_fixed.F, initialise_varia.F
4276       -> enables initialisation interface for ECCO package
4277     o Rescaling of external forcing fields immediately after read
4278       (removed from external_forcing.F)
4279       -> new: surface_fields_scale.F
4280       -> affects ini_foorcing.F, external_fields_load.F
4281     o Computation of surface tendencies before tendency updates.
4282       -> new: external_forcing_surf.F
4283     o Change of variable names useGMRedi, useKPP, useECCO
4284     o Further changes in dynamics.F, impldiff.F for TAMC
4285     o Tested for experiments 0, 2, 4.
4286       - not yet tested for GMRedi.
4287       - not yet tested for KPP.
4288    
4289    checkpoint30
4290     o Updates for OBCs
4291     o New experiment for test OBCs (internal_wave)
4292     o New output.txt in verification/exp4/results/
4293     o Updates for KPP: calculation of viscosity corrected, new variables
4294       kpp_dumpFreq and kpp_taveFreq
4295     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
4296       and entry for T90 in genmake
4297    
4298    checkpoint29
4299     o packaged KPP and GM/Redi
4300    
4301    checkpoint28
4302     o Corrected initialization of hFacMin for difference vertical coordinates
4303     o Modified calculation of partial cell thickness to more robust algorithm
4304     o config_summary.F: replaced write_1D_... by write_0D_...
4305       read_write.F: added subroutines write_0D_...
4306     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
4307       included some initialisations required for TAMC.
4308     o routine calc_isoslopes: modified sqrt computation to make it
4309       differentiable for zero argument.
4310     o routines dynamics, impldiff:
4311       included store directives and tape key computations required for TAMC.
4312     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
4313    
4314    checkpoint27
4315     o fixed calc_isoslopes() to so that cancellation of terms in tensor
4316       formulation works properly with variable resolution.
4317     o restructured the calling tree between the_model_main() and dynamics()
4318     o split initialise() into initialise_fixed() and initialise_varia()
4319     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
4320       in new routine ini_psurf()
4321    
4322    checkpoint26
4323     o moved some #ifdef in optional routines to encompass everything
4324       except the argument declarations. This was using up some memory.
4325     o fixed macros like _ADT to work with both versions of Linux cpp
4326     o cleaned up some unused and uninitialized variables
4327       (helps when debugging with strict compile options)
4328     o split up CPP_EEOPTIONS.h into options and macros
4329       (macros are now in eesupp/inc/CPP_EEMACROS.h)
4330     o patch for 2 processor JAM mode
4331    
4332    checkpoint25
4333     o updates for OBCs and NH
4334     o dramatically reduced memory usage
4335     o added "JAM" routines for use on Artic network
4336     o parameterization of convection by implicit vertical diffusion
4337     o added a diagnostic of convective index
4338     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
4339       (this is was partly for OBCs and NH but also in anticipation of
4340        an explicit free-surface option)
4341     o initial state input files for U and V
4342    
4343    checkpoint24
4344     o Removed some spurious "REAL"s
4345     o Updated KPP to latest version from JPL
4346     o Added a COS(latitude) in horizontal viscosity
4347    
4348    checkpoint23
4349     o Added del^4 diffusion for salt and temperature
4350     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
4351    
4352    checkpoint22
4353     o Made many small changes: implicit none, format(i5), etc...
4354     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
4355    
4356    checkpoint21
4357     o Introduced new I/O package that supports direct-access records (mdsio.F)
4358     o Split-up mid-level I/O routines
4359     o Updated input data for experiments 0,1,2,4 and 5
4360     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
4361    
4362    checkpoint20
4363     o Tidied up open-boundaries some more
4364     o Added non-hydrostatic code
4365     o Fixed some input data
4366     o Modified MPI start-up to work in "coupled" context.
4367    
4368    checkpoint19
4369     o Tidied up directory structure for verification experiments.
4370     o Added new code for open boundaries.
4371     o Corrected advective terms near boundaries.
4372     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
4373     o Implemented free-slip/no-slip BCs and del^4 dissipation.
4374     o Split default parameters out of ini_parms.F into set_defaults.F.
4375    
4376    checkpoint18
4377     o Further changes for optional code generation with
4378       CPP - ugh!
4379    
4380    checkpoint17
4381     o Beginning to incorporating modularity
4382       for supporting atmos. and ocean configs.
4383     o Small changes for TAMC complinace
4384     o New ultra simple test case. Barotropic box
4385       configuration "exp0".
4386    
4387    checkpoint16
4388     o Minor changes to exchange routines to support
4389       accumulation in reverse mode. Adjoint of an
4390       assignment is an addition.
4391     o Changes to support compilation by TAMC (LR(1)
4392       syntax) and by g77 under Linux ( 72 character
4393       limit ).
4394    
4395    checkpoint15
4396     Rewrote exchange routines to allow
4397     o General tile <-> tile connectivity.
4398     o TAMC reverse mode flag ( is this really needed? )
4399     o Variable width overlap and exchange region widths.
4400     o Hooks for sharing data via DMA, Arctic, Memory Channel,
4401       shmput/shmget, VIA, SYSV shmem and every other cool
4402       communication method.
4403    
4404    checkpoint14
4405     Consistent isomorphism chages made. These allow dynamical core
4406     to support both pressure and meters as a vertical coordinate.
4407    
4408    checkpoint13
4409     Release which corrects global_max problem and a couple
4410     of KGM time-averaging diagnostic errors. Also contains
4411     a double-gyre experiment setup as well as the baseline
4412     4 degree global template. The double gyre template is
4413     organised to allow it to be applied automatically to
4414     the baseline configuration.
4415    
4416    branch-point-rdot
4417     A few tidy-ups have been made bt the real point of this
4418     check-point (excuse the pun) is to allow a branch to be
4419     made for the purposes of adding the rDot alterations.
4420     I don't want to commit the rDot to the main-trunk until
4421     we've actually tested it...
4422    
4423  checkpoint12  checkpoint12
4424   Tidy up and added generic genmake script (formerly   Tidy up and added generic genmake script (formerly
4425   configure script).   configure script).

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