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revision 1.268 by jmc, Fri Mar 12 20:57:21 2004 UTC revision 1.1120 by jmc, Wed Jun 10 03:59:51 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 eesupp (global_max & global_sum):
8     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
9     - remove starting & endding barrier (no longer needed)
10    o pkg/mdsio, writelocal:
11       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
12       (remove the STOP): uses shared buffer IO to store data from all threads
13       and then let master-thread write nThreads tiles.
14    o pkg/mdsio (read/write field):
15     - tiled IO done in 1 piece (all levels at a time);
16     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
17     - multi-threaded: allow to read/write local (non-shared) array
18       (was already working with singleCpuIO ; now works also without);
19       => no longer needs barrier call after reading a file (added inside
20       mds_read/write field).
21     - move barrier calls outside gather/scatter_2d to mds_read/write_field
22    o pkg/obcs/exf
23      - exf_getffieldrec.F: add a few ". _d 0" and
24                            add code to catch the case fldperiod = 0.  
25      - obcs_precribe_read.F: change if statements so that they match
26                              the variable type (_RL)
27      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
28        exf_iprec) as part of namelist EXF_NML_01
29    o pkg/mdsio:
30      - read/write tiled (local) files: read/write 1-level tile chunk at a time
31        (instead of segment of length sNx); expected to speed up tiled IO.
32    o pkg/exch2:
33      - take buffer copy from/to array out of S/R exch2_send/recv into new
34        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
35        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
36      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
37      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
38        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
39        including Topology header file (and common blocks).
40      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
41        remove 2nd exch call in exch2_s3d_rx (no longer needed).
42      - document S/R arg. list (+ update some comments)
43    o pkg/seaice:
44      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
45        temperature and humidity over sea ice based on climatological values.
46      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
47        of LSR (this change is expected to change the results slightly because now
48        it uses slightly difference moduli from the second last LSR solution, but
49        that is more consistent with the stress computations; this part of the code
50        is not tested in the verification experiments)
51      - fix diagnostics for flux of ice in case of B-grid
52      - turn strain rates eij and press into global fields within global
53        common block in SEAICE.h for more straighforward diagnostics
54      - fix diagnostics for principal stress components, press, zeta, eta
55        to give something meaning full
56    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
57      new output (all 4 tests) using default rotationPeriod.
58    o pkg KPP:
59      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
60      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
61        and normal grid from 1 to Nr)
62    o Fix computations of L4rdt in mom_calc_visc.F
63    o eesupp:
64      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
65      should be called before a "stop" if we know that all process are going
66      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
67    
68    checkpoint61o
69    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
70    o model/src/ini_curvilinear_grid.F:
71       compute angleSin/CosC when they are not read from a file
72    o pkg/seaice:
73       add pseudo time stepping for LSOR
74    o pkg/exch2:
75       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
76    o pkg/seaice:
77       Adding separate sea ice albedo, drag coefficients, and HO in Southern
78       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
79    o SingleCpuIO:
80       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
81    o pkg/seaice:
82       put exchanged variable in (local) common block for MPI+Multi-Threads
83       to work (necessary with exch1, and for now with exch2 too).
84    o verification: to get more experiments tested with mpi, mth and mpi+mth,
85      change tiling of:
86       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
87       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
88      update output of exp:
89       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
90       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
91      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
92                       (note: output.txt generated on faulks using only 1 tile)
93    o eesupp & mdsio (SingleCpuIO):
94     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
95       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
96       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
97     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
98     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
99       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
100    o pkg/exch2:
101     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
102       read parameter file "data.exch2" if it exists; otherwise try default regular
103       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
104     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
105       with new code (not to be used, just as a backup solution).
106     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
107       in utils/exch2/input.
108    
109    checkpoint61n
110    o eesupp & mdsio (SingleCpuIO):
111      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
112        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
113        receive real*4 array (instead of real*8) to read/write 32.bit files.
114        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
115         and remove new mapping S/R)
116    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
117      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
118        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
119        when using exch2. Add S/R to map global io-buffer to global model array.
120      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
121    
122    checkpoint61m
123    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
124      and add 3 other S/R for other types (R4,R8,RS).
125      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
126    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
127     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
128     - reduce number of macro definitions (keep only those which are used);
129       can always call directly the corrresponding S/R if needed.
130     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
131       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
132     Fixed wrong type of arg in:
133       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
134       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
135     To fix: global_sum of var in common block is wrong (multi-threaded) in:
136       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
137     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
138    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
139      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
140    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
141    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
142      edges are closed (zero depth); might happen with "blank tiles";
143      for now, disabled if using OBCS.
144    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
145      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
146    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
147      to reduce length of 1.D array print in STDOUT.
148    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
149      + use 48 tiles (16x8): this will allow to test "blank tiles".
150    o start to test MPI + multi-threaded (change testreport to skip tests
151      where number of tiles do not match).
152    o genmake2: add option "-omp" to turn on Open-MP ;
153      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
154    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
155      and keep the original tile numbering. Note: compatible with old
156      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
157    
158    checkpoint61l
159    o Overlaps had been forgotten in calculating ijk keys : fixed
160    o fix cyrus makedepend for gcc 4.4
161    o experiment fizhi-cs-aqualev20:
162      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
163      and generate new output. Note: new output is much closer to the old
164      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
165      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
166    o pkg/fizhi:
167     - change to avoid indices going deliberately over array-bounds
168     - remove unnecessary MPI stuff
169     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
170     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
171       does not go over array-bounds and therefore returns reliable output.
172     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
173       this S/R has 4 output arguments, which are used inside "get_alarm";
174       when it is called with the same variable "ndum" in place of several
175       output arguments, this produces weird side effect inside "get_alarm"
176      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
177       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
178       address) and produces error.
179    o tools/gemake2: (March 27-29 2009)
180      with option "-mpi": link *_mpi files from "MODS" dir (this is what
181      testreport does).
182    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
183    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
184       update lab_sea.lsr & lab_sea.salt_plume results
185    o pkg/seaice:
186      Major overhaul of the LSOR solver: change discretization from original
187      finite differences to finite volume. The old routine is still in the
188      file seaice_lsr.F and can be turned on with the CPP-flag
189      SEAICE_OLD_AND_BAD_DISCRETIZATION
190      Along with this change, the discretization of the strain rates is changed.
191      The same flag turns on the old discretization in seaice_calc_strainrates.F
192      All verification experiments with seaice are affected (except for
193      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
194      results by setting the above flag.
195      Further changes involve changes in defaults:
196      - ALLOW_FLOODING is defined and turned on by default
197      - SEAICEadvSnow = .true. is now the default
198      - SEAICEadvSalt = .true. is now the default
199      - SEAICEadvAge  = .true. is now the default
200      - SEAICE_clipVelocities  = .false. is now the default
201                                         (as per J. Zhang's recommendation)
202      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
203        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
204      - seaice_growth: replace computation of UG by a simple copy from wspeed
205    
206    checkpoint61k
207    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
208      seaice_lsr: fixed a few metric terms,
209                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
210                  add more debugging diagnostics
211      seaice_evp: removed superfluous many metric terms of FV discretization
212                  of stress divergence
213                  affects lab_sea, lab_sea.hb87
214      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
215                  of stress divergence for non-evp solver
216                  (this part is not tested anywhere)
217      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
218                  they were effectively only half slip
219                  affects lab_sea.hb87
220      updated all relevant verification experiments (except lab_sea//output_adm.txt
221        which was left over, but fails at level 7 & 6)
222    
223    checkpoint61j
224    o pkg/seaice: turn a few hard wired parameters into run time parameters
225    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
226      time in seconds as promised by the usints in seaice_monitor and exf_monitor
227    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
228      that are not cubed-sphere grids
229    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
230    o pkg/ctrl:
231      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
232    o non-hydrostatic (calc_gw.F):
233      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
234      update output of exp. global_ocean.cs32x15.viscA4
235    o remove backward compatibility for thetaMin,phiMin
236      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
237    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
238      interpolated wind field not only for curvilineargrid=.true., but also
239      for a rotated grid (rotateGrid=.true.)
240    o pkg/exf: add capability to bypass interpolation for runoff
241      by setting yet another CPP-flag
242    o eesupp/src, B-grid exchange:
243      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
244    o autodiff
245      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
246      allows to switch to single-prec common blocks;
247      corresponding switch occurs in tamc.h, integer isbyte
248      TAF store directivs "byte" and "kind" seem equivalent;
249      Most tamc.h have been updated correspondingly.
250    
251    checkpoint61i
252    o autodiff:
253      fix autodiff_sore/_restore indices for obcs
254      (spotted by I. Hoteit, M. Mazloff)
255    o pkg/autodiff, pkg/ctrl:
256      Add flag to reduce all tapelev I/O to single-prec.
257      In data.ctrl set
258        doSinglePrecTapelev = .TRUE.
259    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
260      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
261    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
262      real fresh water flux (not yet)
263    o pkg/mdsio & rw:
264     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
265     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
266    o pkg/flt:
267     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
268       init_fixed & ini_varia.
269     - clean-up & simplify linear interpolation S/R:
270       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
271     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
272     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
273     - add vert. coordinate & horiz. indices to output files.
274     - change vertical position in initial condition, from index to depth [m].
275     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
276       (easier to get to a curvilinear grid) ; delX,delY no longer used.
277    o pkg/ggl90: a few modifications:
278     - fix bottom boundary condition, and interpolation of KappaE
279       near top and bottom
280     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
281     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
282     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
283    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
284      (maintain temporary backward compatibility, until next checkpoint)
285    
286    checkpoint61h
287    o pkg/diagnostics with "periodic averaging diagnostics":
288      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
289    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
290    o pkg/obcs: fix loop ranges for balancing code
291    o pkg/flt:
292     - improve criteria for finding which tile owns a float.
293     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
294    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
295      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
296      with ocean biogeo)
297    o pkg/flt:
298     - do some cleaning and fix the restart ;
299     - add output.txt in flt_example/results to get this pkg tested.
300    o genmake2: add an EXTENDED_SRC option and flag.
301       for now, cannot be turned on on command line (only through genmake_local)
302    o pkg/mdsio: read/write vector:
303     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
304     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
305       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
306     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
307      (drop to 4 digits matching for grad). But this test does not look very
308      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
309    
310    checkpoint61g
311    o pkg/flt:
312      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
313       + make OPTIONS file more standard.
314      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
315      - fix _BYTESWAPIO CPP-Flag
316      - standard reading of file-parameter "data.flt"
317      - fix argument list of S/R FLT_RESTART
318      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
319    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
320    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
321      a still unfixed compiler/optimization bug
322    
323    checkpoint61f
324    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
325      update results of global_ocean.cs32x15.icedyn test.
326    o move getcon.F from model/src to pkg/fizhi.
327    o pkg/exf: add parameter for extrapolation of temp up to the surface
328       and option to prevent negative evap (in bulk_largeyeager04 only).
329    o Prather Advection scheme: fix tracer conservation for divergent flow
330      (e.g., when using NonLin Free-Surface).
331    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
332    o gmredi (Visbeck-variable-K):
333     - add more parameters to Visbeck-variable-K.
334     - use a 5 points average for dSigmaR in Visbeck-K calculation
335       (more "homogenous": same stencil and same weights as in dSigmaH)
336     - update output of ideal_2D_oce experiment.
337    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
338      (#undef REAL4_IS_SLOW)
339     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
340       coordinate variable
341     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
342       (surface forcing fields), removes some of the functionality
343     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
344     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
345       probably not all: copy _RS surface flux fields to RL field before
346       calling DIAGNOSTICS_FILL
347     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
348       real*4 (CALL EXCH_*_RS) versions.
349     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
350       (generate new output).
351    
352    checkpoint61e
353    o gmredi (Visbeck-variable-K):
354      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
355      - change computation of Visbeck-K where Slope > Smax :        
356        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
357        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
358    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
359      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
360    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
361    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
362      does not become too large (to avoid precision problems in implicit-diffusion
363      solver); update ideal_2D_oce output.
364    o pkg ggl90:
365      - in ggl90_cal.F: compute only one set of visc/diff, used to
366        step forward TKE/T/S/momentum
367      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
368        have Prandlt =1)
369    o gmredi (fm07):
370      - add lower limit on Transition layer thickness + lower limit on 1/lambda
371      - allow to set few more params from data.gmredi
372    o pkg ggl90:
373          - add missing sqrt(2) factor in computation of mixing length
374            scale in ggl90_calc.F
375            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
376    
377    checkpoint61d
378    o adjoint modifs
379      - adapt to new field rhoInSitu
380      - allow to revert from StoreDynVars2D, StoreDynVars3D
381        to individual fields
382        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
383    o store 3-D (in-situ) density in commom block (DYNVARS.h)
384     - save 1 rho computation.
385     - no longer modify T & S inland when using down_slope pkg.
386    o gad_som : allow to switch to SOM advection for T & S without corresponding
387      pickup files (using new S/R: MDS_CHECK4FILE).
388    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
389      (for useSingleCpuIO to work in multi-threaded)
390    o pkg/shelfice:
391     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
392       with SHELFICEtopoFile in data.shelfice
393     - move code for reading ice shelf topography and modifying hFacC into separate
394       subroutines of the shelfice package
395     - separate initialisation of "fixed" and "variable" variables
396     - kTopC is not (yet) replaced by kSurfC, although this is possible
397    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
398    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
399      and rename:
400      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
401      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
402    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
403    
404    checkpoint61c
405    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
406      to add mass source/sink of fluid in the interior (3-D generalisation
407      of oceanic real-fresh water flux).
408    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
409    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
410    o new pkg: down_slope
411      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
412      - presently, modify T & S inland (dwnslp_calc_rho.F).
413        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
414      - implementation for ocean in P-coords not tested.
415      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
416    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
417      (to facilitate conversion of oceanic pkg to p-coordinate).
418    o change FIND_RHO to FIND_RHO_2D :
419      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
420    o new pkg: cheapaml
421    
422    checkpoint61b
423    o exch2:
424      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
425      - no longer depend on the order sequence (N,S,E,W).
426      - 3rd exchange no longer needed (tested with 24 tiles).
427      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
428      - exch_UV_A-grid readily available (but not yet tested).
429      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
430      (both are no longer needed) in exch_uv: no effect in forward run; but
431       get truncation error differences with adjoint exch.
432    o exch2:
433     - change index-bounds storage (moved from target to local tile,
434       more intuitive this way) ; rename/remove some variables.
435     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
436    
437    checkpoint61a
438    o exch2/matlab-topology-generator:
439      fix bug in index bounds for N-S internal exchange (hard to tell if this
440      had any effect on the solution).
441    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
442      is exceeded
443    o testreport: modify syntax of awk, so that it works also with
444      awk, and not only with nawk and gawk
445    
446    checkpoint61
447    o autodiff
448      Change default for TAF usage by removing argument '-nonew_arg'
449      This changes TAF subroutine argument list (ordering of active var.)
450      Omission of this flag leads to incompatibility w.r.t. TAMC
451      To restore TAMC-compatibility, need following modifs:
452      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
453      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
454      Tested TAF version is 1.9.22
455      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
456    
457    checkpoint60
458    --->>> This is the last checkpoint for which generating the adjoint
459    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
460    --->>> by default.
461    --->>> Future checkpoints will ommit this flag by default.
462    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
463    o pkg/grdchk: Add gradient check to etan0 perturbations.
464    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
465    o pkg/autodiff: more flexibility in zeroadj.
466      model/src: modifying do_oceanic_phys.F accordingly.
467    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
468    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
469      special setup of gmredi for which the adjoint is stable
470      enough for parameter optimization.
471    o bridging the gap between eddy stress and GM.
472      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
473          along with a change in CPP option (now ALLOW_EDDYPSI).
474      -> when using GM w/ GM_AdvForm:
475          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
476          is applied either in the tracer Eq. or in momentum Eq.
477          depending on data.gmredi (intro. GM_InMomAsStress).
478      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
479      The key modifications are in model/src/taueddy_external_forcing.F
480      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
481    
482    checkpoint59r
483    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
484      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
485      fix option to read coriolis(@ cell-corner) from files with CS-grid.
486    o pkg/mnc: add some attributes to standard 1D-coordinate variables
487    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
488      mass points, when using mnc for output
489      - add runtime parameter (missing_value, missing_value_int) to override
490        default (which is the value of getcon('UNDEF'))
491    o pkg/mnc: prepare mnc for the actual use of missing values with the
492      diagnostics package: small fix in mnc_cw_readwrite.template and more
493      initialisation of never used fields
494      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
495      versions
496    o pkg/thsice/thsice_ini_vars.F added default initial values so that
497      thermodynamics sea ice solver does not blow up when some initial fields
498      are missing.
499    o move from external_forcing_surf.F to ini_forcing.F
500      the p-coord. hack consisting in using pLoad to set phi0surf ;
501      update output of tutorial_global_oce_in_p (affected @ truncation level).
502    o Freshen up a bit hs94.1x64x5, notably:
503      remove rotationPeriod and tRef=5*0. (adjoint only), and add
504      exactConserv=.TRUE.
505    o pkg/generic_advdiff:
506      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
507      applies to files where Temperature & Salinity 2nd Order moments are used.
508    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
509      this uses a dynamically allocated internal state data structure
510      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
511      and requires a fortran 90 compiler
512    
513    checkpoint59q
514    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
515       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
516    o Refresh tutorial_global_oce_biogeo, notably:
517      - change bathymetry (put back seamounts in ACC, use hFacs)
518      - change EOS (POLY3 --> JMD95Z)
519      - use Bryan-Lewis vertical diffusivity
520      - use multidimensional advection
521      - remove old virtual virtual in dic pkg, now done through ptracer pkg
522      - change a couple of parameters in dic pkg
523    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
524    o pkg/obcs: change default to OBCSfixTopo = .true.,
525      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
526      - replace "debugMode" with "debugLevel .GE. debLevB"
527    o implementation of TAF directives for gchem,cfc,dic
528    o remove "exp5" (replaced by tutorial_deep_convection).
529    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
530      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
531      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
532      --> changes results in exp4, seaice_obcs
533    o tutorial_deep_convection :
534      update the set-up and increase resolution and domain size ; start
535      from pseudo initial conditions = output at t=120mn in order to see
536      something happening when running testreport.
537    o pkg/seaice: add os7mp as an advection scheme
538                  add check for advection schemes
539                  add a flag for restoring T and S underneath sea ice
540    o pkg/my82: add netcdf-support and diagnostics
541    o thsice pkg:
542      - Now hsMax limits snow height by turning it into ice following
543        flooding scheme (and now conserving energy)
544      - Slight rewriting of the formula in thsice_calc_thick.F
545      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
546      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
547    
548    checkpoint59p
549    o gchem / dic / cfc :
550      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
551      - add new parameter files: "data.dic" & "data.cfc" ;
552      - various re-arrangement in initialisation & header file ;
553      - fix tutorial_global_oce_biogeo for multi-threaded test.
554    o pkg/dic: test for "pickup_dic" file when restarting ;
555      if no pickup-file, can restart with a re-initialised pH (same as it did
556      before) providing pickupStrictlyMatch is set to False.
557    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
558      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
559    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
560      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
561    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
562     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
563       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
564    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
565       scheme to use for vorticty-term ;
566     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
567       (with default selectVortScheme, return to original discretisation)
568     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
569    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
570    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
571      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
572      also fix diagnostics VISCAHW & VISCA4W.
573    
574    checkpoint59o
575    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
576    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
577      move a few statemens out the main loop into separate loops
578    o pkg/shelfice:
579      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
580        (kg/m^2/s), does not break tests, because in verification/isomip,
581        rhoConstFresh=rhoConst (by accident)
582      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
583      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
584        new file model/src/seawater.F, so that they are available for all pkgs.
585      - convert potential temperature into in-situ temperature. This changes the
586        isomip tests => update tests
587    o add a flag writePickupAtEnd (default=true) to be able to suppress
588      writing a pickup at the last timestep
589    o tools/mpack-1.6 :
590      - disable automake (not working) and autoconf (not needed).
591      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
592        also cleaner with much less compilation warnings.
593    o pkg/profiles:
594      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
595      (for "less than 32 characters name" compiler requirement)
596    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
597      conditions that have a different sampling frequency than S/T/U/V obcs
598    o pkg/diagnostics (stats-diags):
599      - fix global Min/Max in case 1 processor get only empty tiles
600    o genmake2: replace (4 times)
601         make genmake_tc_1.o >> genmake_warnings 2>&1
602      with
603         COMM="$CC $CFLAGS -c genmake_tc_1.c"
604         echo $COMM >> genmake_warnings
605         $COMM >> genmake_warnings 2>&1
606      to make genmake2 always see the value of CC as specified in the optfile.
607    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
608      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
609      - modify verification advect_cs test to test SOM-advection on CS-grid.
610    o pkg/ctrl:
611      - Rewrite of ctrl_map_ini_ecco.F,
612        introducing a generic routine (ctrl_map_ini_gen.F).
613      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
614    
615    checkpoint59n
616    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
617      number in dedicate array "hdiag":
618      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
619        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
620      - many small changes (integer format) for large number of diagnostics
621      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
622        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
623    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
624      usingSphericalGrid, this allows to define the rotated grid coordinates
625      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
626      geographical coordinates according to the inverse of the rotation defined
627      by the Euler angles, so that Coriolis parameter and online-interpolation by
628      exf works with the geographical coordinates on XC/YC/XG/YG.
629      Naturally, this feature does not work with all packages, so some
630      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
631      profiles), because there the coordinates are assumed to be regular
632      spherical grid coordinates.
633    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
634      - introduce isopycnal diffusion coefficient control.
635    o tools/adjoint_options:
636      - additional control vector components.
637    o pkg/mnc: have mnc create marginally meaning full coordinate variables
638      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
639    o pkg/mypackage:
640      - add example of read/write pickup for state-var ;
641      - add entry points to the main code for state-vars diags & write-pickup.
642    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
643      transitions for useExfYearlyFields
644      - add new subroutine that determines the file to read from for
645        use*YearlyFields = .TRUE. and .FALSE.
646      - add a verification experiment to global_with_exf that tests
647        useExfYearlyFields with USE_EXF_INTERPOLATION defined
648    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
649      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
650      subroutines (which could be generated from a template, because they are
651      almost identical), for now they are included in obcs_prescribe_read.F for
652      simplicity
653    o pkg/exf:
654      - add a little more diagnostic to exf_interp_read (in analogy to
655        mds_read_field, can be turned off with debugLevel < debugLevA=1)
656      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
657        ugly but fast by unrolling short inner loops, inserting a unroll=8
658        directive in routine lagran, and splitting a loop and making do while the
659        outermost loop (the latter requires the intoduction of index arrays)
660    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
661    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
662      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
663    o verification/seaice_obcs: updated for restart test and latest options
664    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
665      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
666      for now this is only available for the C-grid code and also within
667      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
668    
669    checkpoint59m
670    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
671      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
672    o gad_som : fix flux output (& diagnostics) to have same units as other  
673      advection scheme fluxes (was previously multiplied by deltaT).  
674    o added verification/seaice_obcs both to test seaice open boundaries
675      and to provide an example matlab scrpt for generating them
676    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
677    o pkg/salt_plume: clean up salt_plume_frac.F to
678      remove redundancy in PlumeMethod 1 and 4
679    o pkg/kpp: added saltplume diagnostics
680    o pkg/obcs and pkg/seaice:
681      - do not set uice and vice to zero when OB*icefile are unspecified
682      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
683      - moved seaice tracer obcs after call to seaice_growth
684    o pkg/salt_plume: added various options for salt plume depth
685      criterion and for vertical distribution of the salt
686    
687    checkpoint59l
688    o pkg/ptracers: new version of ptracers pickup:
689      read meta file and write only fields which are needed to restart.
690      ( same logic as main pickup file ; also using pickupStrictlyMatch )
691    o pkg/seaice:
692      - add timescale for melting due to warm mixed layer as a means of
693        setting SEAICE_availHeatFrac more conveniently
694      - add a CPP-flag/runtime parameter check for flooding algorithm
695      - reformulated availHeat in seaice_growth.F to be independent of AREA
696    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
697      unit changes
698    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
699    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
700      SX vector computer.
701    o pkg/seaice:
702      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
703        seaice forcing fields can now be read only through pkg/exf
704      - removed some unused halos
705    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
706    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
707      or U/VICE from U/VWIND before computing U/VSTRESS
708    
709    checkpoint59k
710    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
711      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
712    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
713      all experiments pass when compile with un-initialised var. checking option.
714    o added pkg/salt_plume
715    o script to test restart (for now, in MITgcm_contrib/jmc_script)
716    o pkg/seaice: new read/write pickup version.
717      read meta file and write only fields which are needed to restart.
718      ( same logic as main pickup file ; also using pickupStrictlyMatch )
719    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
720    o lab_sea.hb87: modify the domain & update output.hb87.txt :
721      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
722      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
723      process. Fixed here by closing the domain at the Northern boundary.
724    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
725    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
726      a set of consecutive levels in/from a 3-D array.
727    o pkg/ptracers:
728      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
729      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
730    
731    checkpoint59j
732    o in pkgs: dic, obcs, offline, rbcs:
733      standard way to compute coeff. for time interpolation between 2 time reccords
734      which retains full precision (& make results less dependent on compiler).
735      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
736    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
737      packages instead of reading ice cover and wind speed separately
738    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
739     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
740      to allow to compile customized code before the update)
741    o cleaning-up:
742      - fix CPP instruction syntax in pkg/obcs
743      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
744        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
745      - fix some threads issue in IO parts.
746    o pkg/dic:
747      - add tons of "_d 0" (--> much better testreports !)
748       and then update outputs of tutorial_global_oce_biogeo
749    o pkg/mom_fluxform:
750      add a special version of momentum advection intended to conserve momentum
751      next to a bathymetry step or a coastline edge. (default = off = #undef)
752    o new read/write pickup version:
753      - for now, only implemented for main (mdsio) pickup file.
754      - write out only what is needed to restart; merge pickup_nh , pickup_ph
755        and main pickup together.
756      - read meta file; read only what is needed to restart; stop if a field
757        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
758        if it make sense (even if the restart is not perfect).
759      - if no meta file, assume that pickup to read corresponds exactly to
760        a pickup that would currently be written.
761      - read pickup written in the old format (until checkpoint59i) if it
762        recognizes an old meta file (no field-list).
763      - add a meta file in exp. which starts from a pickup: 2 cases:
764        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
765         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
766        b) a meta file describing the content of the associated pickup file
767         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
768    o pkg/mdsio & pkg/rw:
769      - new routine to read a meta file ; new set of routine to read
770        Multiple-fields file (with meta file).
771    o added open boundary conditions capability for seaice
772        HSNOW, HSALT, UICE, and VICE
773    
774    checkpoint59i
775    o adjoint:
776      * fix multiDimAdvection adjoint
777        (partial recomputation problem by TAF for fVerT(:,:,kDown)
778        and comlev1 size definition (maxpass vs. max. number of tracers)
779      * verification/global_ocean.90x45x15 adjoint now tests
780        NLFS and multiDimAdvection using DST3 (=30)
781      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
782    o pkg/kpp: add "_d 0" to real constant (if missing);
783      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
784      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
785    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
786      for internal parameters related to restart process (formerly from PARAMS.h)
787      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
788    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
789      as argument. (only atm2d & obcs write_pickup have not yet been updated)
790    o pkg/monitor:
791      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
792      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
793      - account for deep Atmosphere factor and density factor (anelastic)
794    o added open boundary conditions capability for seaice HEFF and AREA
795    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
796      thermodynamics
797      - requires a little reorganization, which affects the testreport results
798        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
799        so that now the conservative form is tested
800      - add a few comments
801    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
802    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
803    o add new diagnostics to seaice: advective, diffusive fluxes (only for
804      multidim-advection, for scheme 2 they are not filled) and transports,
805      thermodynamic growth rates
806    o change units of EmPmR (inside the code, + within coupling interface)
807      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
808      Affects results @ truncation level (cg2d match) and update output of
809       experiments: lab_sea(6), global_ocean.90x40x15(10),
810      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
811      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
812      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
813      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
814    
815    checkpoint59h
816    o pkg/exf:
817      - improve vectorization by moving if-statement out of loops in
818        exf_mapfields, exf_radiation
819      - exf_bulkformulae.F: introduce 2D fields and vectorize code
820    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
821    o testreport:
822      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
823        monitor & update offline_exf_seaice exp. output.
824      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
825    o pkg/seaice:
826      - bug fix in the evp solver: boundary conditions were affected be
827        masking of zMax/zMin (changes results)
828      - minor bug fix in boundary conditions in seaice_calc_strainrates
829        (changes results for no_slip)
830      - seaice_lsr.F: make interpolation of eta dependent on boundaries
831      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
832      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
833        stress formulation and no-slip boundary conditions
834    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
835      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
836    o pkg/seaice: a first HSALT time stepping equation has been checked in
837    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
838      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
839      without requiring DO-IF statements
840    o pkg/thsice:
841      use continuous power-law function for partition of energy between lateral
842      melting/freezing and thinning/thickening ; old code using step function
843      still available with #undef THSICE_FRACEN_POWERLAW
844      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
845    o testreport: change AD testing : check against results/output_adm.txt
846      using same scripts as for forward test.
847    
848    checkpoint59g
849    o adjoint testing: in preparation for changing testreport:
850      - output format: cost and grad written on separated lines
851      - ad output results in directory "results" (instead of "results_ad")
852    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
853    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
854    o pkg/ecco: allow user defined cost function contributions
855    o testreport:
856      Allow to choose (per experiment) the list of tested output variables
857       and the main variable (used to issue a pass/FAIL ) ;
858      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
859      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
860      Also modify printing of summary:
861       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
862       b) echo the list of tested variables in the individual summary.txt of
863          each experiment.
864    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
865      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
866      (but still depend on the tile decompostion of the domain).
867    o pkg/seaice: change a discretization detail to make the B-grid code
868      "more symmetric". This change is likely to remove all "ridges/leads" that
869      where quasi-aligned with the grid in B-grid solutions. It may also be
870      the solution to the stress coupling issues with the B-grid.
871    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
872      remove .cvsignore from input dir. (since testreport no longer run here).
873    o pkg/thsice:
874     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
875     - fix reshaping of sea-ice just after advection:
876       melt all the ice only if ice-volume is too small.
877     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
878       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
879     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
880    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
881      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
882    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
883      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
884      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
885      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
886      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
887      -> update output.txt
888    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
889     this affects truncation error: -> update output.txt of exp:
890      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
891      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
892    
893    checkpoint59f
894    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
895    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
896      a bounded range (in forward mode)
897    o pkg/ecco, ctrl, autodiff and mom_common:
898     internal parameter controls, completements of implementations
899    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
900    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
901      (not seem any difference in testing results).
902    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
903       at face corners.
904    o pkg/generic_advdiff:
905     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
906      loop range indices for computing vertical advection tendency
907      and do the calculation in the interior only (no overlap) ;
908      for now, only implemented for SOM advection (to save CPU time).
909     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
910    o exch2 adjoint
911      First set of changes:
912      - add exch2 hand-written adjoint templates
913      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
914        This will require cleanup in pkg/autodiff/*.F
915        (changed routines currently kept separate in verif. code/)
916      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
917        that used to hide exch2 or cubed-sphere specific code
918        (commented via 'cph-exch2')
919    o pkg/seaice
920      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
921    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
922       output of global_ocean.cs32x15.thsice .
923    
924    checkpoint59e
925    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
926      for B-grid vector (not yet tested) and C-grid vector (<- only used
927      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
928    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
929      (#ifdef ALLOW_SALT_PLUME)
930    o gather_2d/scatter_2d: removed halo regions
931    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
932      scheme and the corresponding test case (under front_relax dir). For now,
933      only available with Skew-flux form and not yet tested in realistic set-up.
934      adjoint: store directives updated, but gradient checks deteriorated,
935      so maybe GM/Redi adjoint is now broken.
936    o seaice adjoint
937      * add AREA, HEFF, HSNOW as control variable
938        (should not change lab_sea results)
939      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
940    o pkg/seaice:
941      * added computation of saltFlux in seaice_growth;
942        For time being, sea ice salinity is assumed constant
943        contribution of snow flooding to freshening of sea ice is neglected.
944        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
945        defaults to 0.0 in order to maintain backward compatibility.
946        Typical values for SEAICE_salinity are 4 to 10 g/kg.
947      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
948      * added SEAICE_availHeatFrac, which specifies fraction of surface level
949        heat content used to melt or grow ice
950      * commented out cap of HICE: it helps keep ice thinner
951      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
952      * applied OBCS T/S mask to HEFFM sea ice mask
953    
954    checkpoint59d
955    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
956     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
957     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
958    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
959     and change default value of parameter "GM_Small_Number";
960     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
961       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
962       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
963    o pkg/ecco: cost function when applying pkg/smooth to controls
964    o pkg/ctrl: add forcingPrecond run time parameter
965    o pkg/seaice:
966     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
967     - fix bug in metric terms of u-equation in LSR solver (implicit part),
968       changes verification/lab_sea
969     - rearrange implicit part of u-equation in LSR solver to make it easier to
970       read, understand, and debug. This causes changes at the truncation level.
971     - fix (serious) bug in the boundary conditions (sign error in the implicit
972       part) of the LSR solver. Changes all LSR results.
973     - fixed problem with HSNOW initialization to avoid thick snow when AREA
974       is initilized with small values - does not change lab_sea results.
975     - added HsnowFile initialization capability
976    o pkg/smooth: addition to model/src and pkg/ctrl so allow
977     initialization of pkg/smooth and application to control vector
978    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
979    o dependencies: pkg/profiles requires pkg/cal
980    o pkg/profiles:
981     - added option ALLOW_PROFILES_GENERICGRID
982         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
983         that interpolation information (grid points and coefficients) is provided
984         within the netcdf input files.
985         -> sample matlab scripts can be found in MITgcm_contrib/gael
986         that allow you to prepare netcdf input files.
987     - also modified: cleaner include statements, cleaner error print statements,
988       cleaner stops when error, and more tests of the netcdf input files consistency.
989    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
990    o pkg/seaice:
991     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
992       requires a new routine: seaice_diagnostics_fill.F
993     - make sure that seaice does not move if not forced (pressure replacement
994       method, Hibler and Ip, 1995), changes results
995     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
996     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
997       It is turned off by default (=-1.), because it changes the results.
998     - make it possible to read AREA from a file, too.
999    
1000    checkpoint59c
1001    o add S/R and diagnostics for oceanic mixed-layer depth
1002    o move GMRedi call after all vertical mixing schemes (including KPP)
1003    o pkg/thsice:
1004     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1005      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1006    o pkg/obcs:
1007     - bug fix for balance code
1008    o pkg/seaice:
1009      - allow values of SEAICE_elasticParm > 1
1010      - add new parameter SEAICE_evpTauRelax as an alternative
1011        to SEAICE_elasticParm
1012      - make lsr boundary conditions free slip (by default), changes result
1013      - add code for no slip boundary conditions for lsr
1014      - set minimum of zeta to zero (and not 4e8) (changes results)
1015      - add a cap on AREA after advecting AREA if seaice_growth is not called
1016    o change calculation of Visbeck K:
1017      - no longer depend on tapering scheme; instead, compute slope (limited
1018        by GM_maxSlope). this is equivalent to what was comuted before with
1019        clipping or linear tappering.
1020      - fix vertical averaging (wrong by 1/2 level)
1021      - leave the old version (but will not be maintained) within
1022        #ifdef OLD_VISBECK_CALC / #endif
1023      - update output of exp. ideal_2D_oce
1024    o change error catch in calc_r_star to improve vectorization
1025    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1026      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1027    o adjoint:
1028      Re-organized adjoint checkpointing according to Matt Mazloff
1029      (but with modifs/completions/cleanups)
1030      Storing is now bundled into large arrays to optimized I/O
1031      (and second step in cleanup of the_main_loop)
1032    
1033    checkpoint59b
1034    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1035      - export/import (between ocean & coupler) fields needed for ocean DIC.
1036    o pkg/seaice:
1037      - get rid of three more exchanges seaice_calc_viscosities (required
1038        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1039      - bug fix in seaice_ocean_stress (update of lab_sea required)
1040      - reduce loop boundaries to necessary minimum also in seaice_evp
1041      - go back to the old way of computing deltaC/Z as the adjoint likes that
1042        better
1043    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1044      passive tracer to an Age Tracer) + update output.txt
1045    o pkg/exf:
1046      - implement A-grid / C-grid selection for wind-stress input files.
1047      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1048      for now, in exf_bulk_largeyeager04.F only :
1049      - change implementation for case where windspeed + 2. components wind-stress
1050        are read-in. AND use rhoConstFresh to convert evap.
1051    o pkg/seaice:
1052      - use correct EXCH_UV for wind-forcing (on A-grid).
1053      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1054        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1055    o pkg/exf:
1056      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1057      EXF_INTERPOLATION:
1058      - merge global_with_exf/code version of exf_interp_read.F
1059        to the main code ;
1060      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1061        reading the file ; Important: This options needs to be defined to recover
1062        previous code.
1063        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1064      - no longer loose real*8 precision along the way when using exf_iprec=64.
1065    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1066      - change discretisation of evp-solver in order to avoid another exchange
1067        (changes lab_sea) and clean up a little
1068      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1069        help the adjoint (this also changes the results slightly)
1070      - add a few "_d 0" where they had been missing in seaice_evp.F
1071      - cleaning up: remove unused seaice_calc_rhs.F
1072    o pkg/exf: some cleaning-up:
1073      - change various "constants" into runtime parameters
1074      - cleaned-up Large&Yeager04 routine which should eventually
1075        replace exf_bulkformulae.F (changed names of S/R and CPP)
1076        and merged various ALLOW_ATM_WIND options
1077     only used with thsice pkg (in thsice_get_exf.F):
1078      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1079        which are used when useStabilityFct_overIce=TRUE (= the default)
1080      - change default values of ice & snow emissivity and scale downward LW
1081        by ice & snow emissivity.
1082    o pkg/thsice:
1083     fix few little problems, in thsice_calc_thickn.F:
1084      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1085      - melt only laterally if hIce < hThinIce (as the comments say)
1086      and in thsice_extend.F:
1087      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1088      - start to form ice as soon as the minimum ice-volume is reachable.
1089     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1090      and cpl_aim+ocn
1091    o pkg/kpp
1092     - move computation of surface related input fields to KPP into a new
1093       subroutine kpp_forcing_surf.F
1094     - remove wrong (within bi,bj loops) EXCH calls.
1095     - little cleaning (add argument myThid in last position, cvs header ...)
1096     - for now, fix conservation problem by exchanging KPPviscAz (may not
1097       be the best fix)
1098    o pkg/seaice
1099     - check for inconsistent evp parameter/cpp-flag combination
1100     - remove leftover errIO flat for obsolete name list error handling
1101    o OpenAD
1102     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1103    
1104    checkpoint59a
1105    o pkg/seaice: some parameter clarifications and a little bit of clean up
1106    o pkg/thsice: rename run-time parameters:
1107       himin       -> hIceMin
1108       himin0      -> hThinIce
1109       hihig       -> hThickIce
1110       i0          -> i0swFrac
1111       transCoef   -> bMeltCoef
1112       frac_energy -> fracMelting
1113      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1114       with default values (for now) that do not change the results.
1115      remove old version of thsice vars advection in pkg/seaice.
1116    o in FFIELDS.h:
1117      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1118      - make pLoad & sIceLoad always available (but still only used if
1119         ATMOSPHERIC_LOADING is #define).
1120    o pkg/kpp: replaced _KPP_RL with _RL
1121    o bug fixes for vertical diffusivity computations when both KPP and
1122        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1123        are no longer updating the vertical diffusivity array
1124        (passed as argument) but are (re-) setting those arrays.
1125    o pkg/seaice: fix bug in evp solver, while doing that
1126      - change (improve?) discretization of stress computations for both
1127        cgrid-lsr and evp solver
1128      - add a new routine to compute strain rates
1129      - the above changes lab_sea results
1130      - add no slip conditions for evp solver (off by default), lsr-version
1131        may follow
1132      - fix exchange for shear at Z-points (does not change lab_sea)
1133      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1134        (to force the user to pick a time step since there is not "safe" way
1135        of choosing it)
1136      - add principal stress diagnostics
1137      - rearrange fields for evp a little to avoid having to call a: too many
1138        exchanges and b: exchanges for stress trensor components which we do
1139        not have.
1140      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1141        of evp, complete rewrite for lsr case (latter is does not yet work
1142        in all cases)
1143    o pkg/kpp: add code to have mixing in shelf ice caverns
1144      - add myThid to all kpp routines (long overdue)
1145    
1146    checkpoint59
1147    o pkg/exf:
1148      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1149        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1150      - move exf header files from lower_case.h to UPPER_CASE.h ;
1151        add missing cvs Header & Name
1152      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1153      - add namelist param. selectStressGridPosition, exf_monFreq
1154      - retire many _CLIM routines, and remove data.exf_clim
1155        + params moved to data.exf
1156        + climsst, climsss now handled by exf_set_gen, i.e.
1157          climss?period=0 refers to constant field,
1158          climss?period=-12 to monthly forcing
1159      - split up namelists in data.exf
1160    o pkg/seaice:
1161      - remove seaice_exch and seaice_exch_uv
1162      - remove superfluous exchange of theta
1163      - add myThid to seaice_budget_ocean/ice
1164      - add new interface for atmospheric wind forcing (C-grid only)
1165        + new routine
1166        + two new field (taux, tauy for stress over ice)
1167        + removed one global field (DAIRN) for C-grid case only
1168    o pkg/thsise
1169      - 2nd set of modifs for thsice adjoint in conjunction with exf
1170    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1171    
1172    checkpoint58y_post
1173    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1174      vertical diffusivity, similar to that in MOM4; turned on using
1175      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1176      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1177    o Added capability for 3D specification of background vertical diffusion
1178      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1179      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1180      "data" file that contains the 3D vertical diffusivity coefficients.
1181    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1182      - add code within pkg thsice to advect & diffuse sea-ice fields
1183      similar to (and will replace) what has been added in  seaice_advdiff.F,
1184      but: - conserving Mass, Heat & Salt.
1185           - better when using non-linear advection scheme (not yet fully tested)
1186           - can also be used in atmospheric set-up (for now, only the diffusion).
1187    
1188    checkpoint58x_post
1189    o IO option for global-file compact format:
1190      - add options when generating topology (utils/exch2/matlab-topology-generator)
1191      - add I/O capability (pkg/mdsio).
1192      - adapt utils/matlab/rdmds.m to read this format.
1193      for now long-line format not yet supported by pkg/mdsio (& exch2).
1194    o shelfice: add a few diagnostics
1195    
1196    checkpoint58w_post
1197    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1198      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1199      (and replace horiVertRatio in NH code).
1200      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1201                         and tutorial_plume_on_slope (sensitive to truncation)
1202    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1203      directly to drive seaice model (C-grid only)
1204    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1205     - reintroduce computation of wind from stress,
1206     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1207       mass points to avoid tau = 0
1208     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1209    o rdmnc.m: make it work with "global" files created with gluemnc
1210    o rdmnc.m : some improvements in dealing with singleton dimension
1211      (tested on all testreport mnc output files).
1212    o genmake2: disable pkg/profiles if netcdf test fails.
1213    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1214    o move call to cal_readparms up to make calendar parameters/variable available
1215      to all packages
1216    
1217    checkpoint58v_post
1218    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1219      useDynP_inEos_Zc tested.
1220    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1221    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1222      and portions thereof.  See read_cs.txt for description and examples.
1223    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1224      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1225      following the great-circle arc between those 2 points.
1226    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1227      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1228    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1229     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1230     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1231     - still needs work (not working with some options ; efficiency to improve)
1232       and serious testing.
1233     - use this scheme for temperature & salinity in 2 advection test exp.:
1234       advect_xy & advect_xz, respectively.
1235    
1236    checkpoint58u_post
1237    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1238    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1239    o testreport: add option "-skipdir" to skip some test.
1240    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1241      momentum calculation.
1242    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1243    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1244      remove checkpoint.F and the_correction_step.F (no longer used);
1245      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1246    o add option (linFSConserveTr) to correct for tracer source/sink due to
1247      Linear Free surface
1248    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1249    o pkg/thsice: fix reading mnc-pickups
1250    
1251    checkpoint58t_post
1252    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1253    o pkg/mdsio:
1254     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1255       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1256       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1257     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1258     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1259       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1260     - new S/R (to replace MDSWRITEMETA), which allows to write more
1261       informations (variable names, time ...) to meta files.
1262     - modify rdmds.m to give back the meta file content.
1263    o pkg/diagnostics: change vertical interpolation to be safer, and more
1264       flexible (define p-levels to interpolate to in data.diagnostics);
1265      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1266       diagnostic pointer.
1267    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1268    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1269    o fix multi-category seaice:
1270     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1271       SEAICE_MULTICATEGORY
1272     - fix short wave heat flux
1273    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1274       and allow to use EVP solver. Change forward lab_sea: test both EVP
1275       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1276    o Initial check-in of lab_sea adjoint
1277      (very similar to natl_box_adjoint/code_seaice)
1278      * used C-grid and EVP solver
1279      * used KPP, GM/Redi
1280      * uses inAdExact=.TRUE.
1281      * gradient checks fail for both ADM and TLM
1282        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1283        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1284        issue is related to forward mismatch between g77 an ifort
1285    o pkg/seaice: overhaul of thermodynamics
1286     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1287     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1288     - move a few global fields out of SEAICE.h into seaice_growth.F and
1289       make them 2D (FICE/QNETO/ ...)
1290     - remove FO (it is the same as QNETO)
1291     - introduce a few local fields to avoid modifying external fields such
1292       as atemp, etc.
1293    
1294    checkpoint58s_post
1295    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1296      changed exf_set_gen.F so that
1297        genperiod=0 means input file is one time-constant field and
1298        genperiod=-12 means input file contains 12 monthly means
1299    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1300      this affects truncation error ; generate new output file for exp. which
1301      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1302        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1303        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1304        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1305        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1306        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1307    o start implementation of deep-atmosphere and anelastic formulation
1308    o verification: remove 2nd copy of input files and use script "prepare_run"
1309      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1310    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1311    o profiles: fix for multithreaded case
1312    
1313    o diagnostics: rename few diags:
1314      s/'PRESSURE'/'RCENTER '/g
1315      s/'TICE    '/'oceFreez'/g
1316      s/'TAUX    '/'oceTAUX '/g
1317      s/'TAUY    '/'oceTAUY '/g
1318      s/'SWFLUX  '/'oceQsw  '/g
1319      s/DIFx/DFxE/g
1320      s/DIFy/DFyE/g
1321      and add few ocean-forcing diagnostics:
1322      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1323    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1324      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1325      as actual snow thickness.  It now refers everywhere to effective snow
1326      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1327    
1328    checkpoint58r_post
1329    o modifications to pkg/seaice/growth.F, which change results of
1330      lab_sea experiment: fixes pertain to melting snow over open water, to
1331      masking EVAP under sea ice, and to using the correct AREA variable for
1332      computations of EVAP, PRECIP, HSNOW, and GHEFF
1333    o add ability to read bathy, salt, and theta using MNC (off by def)
1334    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1335      both are turned off by default and do no change any results
1336    o seaice advection with pkg/thsice: a step toward the use of non-linear
1337      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1338    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1339      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1340      in natl_box (affects results @ truncation level: update output.txt)
1341    o multi-threading and IO:
1342      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1343      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1344        (needed to work with SingleCpuIO): tested in all verif. exp.
1345    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1346      affects the results (but none of the verification test uses this scheme).
1347    o Adding some pkg/diagnostics capability to pkg/seaice
1348      (will certainly be subject to changes)
1349    o ctrl: adding new control variables:
1350      lwflux, lwdown, evap, snowprecip, apressure, runoff
1351    
1352    checkpoint58q_post
1353    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1354      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1355      high_res_cube configuration by 4% on Columbia.
1356    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1357      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1358      dynamical allocation (seems to work in multi-threaded).
1359    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1360      single CPU io) so that TAF does not have to see EESUPPORT.h
1361    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1362    
1363    checkpoint58p_post
1364    o obcs: stop if obcs is used with useCDscheme = .true.
1365    o shelfice:
1366     - fix a sign error so that no slip at shelfice interface works
1367     - remove stop for combination non-hydrostatic code and shelfice. That does
1368       not mean, that the results are correct, but at least they are numerically
1369       stable
1370    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1371    o added adjoint exch routined for all exch*3d* routines
1372      and updated flow directives
1373    
1374    checkpoint58o_post
1375    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1376      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1377    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1378      and clean-up reading/writing of pickup files.
1379    o fix local version of read/write pickup (NH part) in rotating_tank/code
1380    o simplify EXCH interface:
1381     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1382     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1383    o added the regrid package
1384    o shelfice:
1385     - add a simple boundary layer scheme to reduce noise
1386     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1387    
1388    checkpoint58n_post
1389    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1390       local variable (not in common block).
1391    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1392      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1393      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1394        to work with SingleCpuIO.
1395    o add "_d 0" to real constant of pkg/cfc subroutines ;
1396       update exp. cfc_exemple & tutorial_cfc_offline output files.
1397    o multi-threading and IO:
1398      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1399        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1400      - barrier before and after reading.
1401      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1402      - avoid using MDS_WRITELOCAL for LAND pkg output.
1403      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1404        common-block variables ; Allows multi-threading with master-thread IO.
1405    o change default MAX_NO_THREADS from 32 to 4 ;
1406      and stop cleanly when MAX_NO_THREADS is too small.
1407    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1408    
1409    checkpoint58m_post
1410    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1411       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1412    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1413       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1414       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1415    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1416        add MITgcm_tutorials (= code + all the tutorials)
1417    o ecco, option to compute cost for total ssh (mean+anom)
1418    o consistent with addition of ptracer and ssh in pkg/profiles
1419    o profiles: adding ptracer and ssh
1420    o testreport: change multi-test output-file name
1421      (from output.txt.{name} to output.{name}.txt)
1422    o profiles: now ok for mutli-tiles case
1423    o seaice: add 4 parameters for different advection schemes for area,
1424      (effective) seaice thickness, enthalphy, and snow height. Their default
1425      is the standard parameter SEAICEadvScheme
1426    o calc_gw:
1427     - add cosFacU in zonal viscous flux (harmonic.visc.).
1428     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1429       of tutorial_plume_on_slope.
1430    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1431    o calc_gw: true flux-form, account for horizontal grid spacing.
1432      update rotating_tank results, but not plume_on_slope (affected at
1433      truncation level, 11 digits).
1434    
1435    checkpoint58l_post
1436    o calc_gw:
1437     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1438     - remove side-drag for now (need to fix it); update plume_on_slope results.
1439     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1440    o commit code to make SST/SSS weights spatially variable
1441      (based on either variable in-situ or variable initial T/S weights)
1442    o pkg/ecco:
1443      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1444        now based on horizontally varying weights wthetaLev, wsaltLev
1445      * cost_averagesflags now returns year indices in addition to day, month
1446      * sflux balance is performed on annual basis
1447        (sflxumm, sfluxmm2, bal_sfluxmm)
1448      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1449        including separate counting and multipliers
1450    o pkg/rbcs
1451      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1452    
1453    checkpoint58k_post
1454    o testreport:
1455     - always build in dir. "build" (if not there, mkdir build instead of building
1456       & running in input)
1457     - run in dir run (if it exists), in build otherwise.
1458     - call prepare_run (if input/prepare_run exists)
1459     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1460    o pkg/exf modifications to interpolation and rotation routines for more
1461       reasonable treatment of North Pole singularity: for tracers North Pole
1462       value is set to northernmost zonal-mean value, for zonal velocity it is
1463       set to zero, and for meridional velocity it is set to northernmost value.
1464    o pkg/exf/exf_check_range.F
1465     - add tile index to diagnostics and move stop statement to the very
1466       end of the routine.
1467    o pkg/diagnostics: (diagnostics_main_init.F)
1468      define title of isomorphic variables according to the current config.
1469    o pkg/thsice with pkg/seaice dynamics:
1470    - fix domain of computation (interior only, required for exf) and do exchanges
1471    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1472    o towards a standard way of dealing with multi-threading in MONITOR
1473      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1474    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1475       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1476    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1477    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1478    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1479       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1480    o tracer advection:
1481     - clean-up and simplify calc_common_factors.F
1482     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1483       advection subroutine (but still not used within DST advection S/R)
1484    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1485    
1486    checkpoint58j_post
1487    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1488      from file (collects calls previously in FORWARD_STEP)
1489    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1490    o adjoint store dir. adjusted accordingly
1491    o genmake2
1492      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1493    
1494    checkpoint58i_post
1495    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1496      on wind stress (SEAICEstressFactor defaults to 1.)
1497    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1498      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1499    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1500      on CS-grid: no longer loosing mass.
1501    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1502    o pkg/ggl90: fix sloppy output and fix a bug
1503    o pkg/seaice: added SEAICEuseEVPpickup parameter
1504      - Set to false in order to start EVP solver with
1505        non-EVP pickup files when using SEAICEuseEVP
1506      - fix sign error in diffusion in seaice_calc_rhs
1507    
1508    checkpoint58h_post
1509    * Modifications for bottom topography control
1510      o replace hFacC by _hFacC at various places
1511      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1512      o add non-self-adjoint cg2d_nsa
1513      o update autodiff support routines
1514      o re-initialise hfac after ctrl_depth_ini
1515      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1516    * Adding verification for 5x5 box (4-layer) bottom topography control
1517    
1518    checkpoint58g_post
1519    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1520       used for mean seasonal cycle, mean diurnal cycle); add an example
1521       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1522    o pkg/ggl90:
1523      - add parameter (minimum surface kinetic energy)
1524      - fix bug (avoiding division by zero)
1525    o couple pkg/thsice to pkg/seaice:
1526      - modify advection in seaice to accomodate new scalar fields to be advected
1527      - only muliDimAdection scheme work with seaice/thsice
1528      - mapping of thsice-variables to seaice-variables, back and forth
1529      - does not break the verification experiments, but does not give the
1530        desired results either
1531    o pkg/seaice
1532      - make (default) second order advection a bit less confusing?
1533    
1534    checkpoint58f_post
1535    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1536      to pkg/seaice):
1537      - new routines thsice_map_exf and thsice_get_exf provide the interface
1538      - add an additional formal parameter to thsice_solve4temp
1539    o pkg/exf:
1540      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1541      - correct Stefan-Boltzmann constant
1542      - new parameter for longwave surface emittance
1543      - separate some stuff from exf_bulkformulae into new routines  
1544        exf_radiation, exf_wind
1545      - add new parameters and constants: longwave emissivity for ocean, ice
1546        and snow, evaporation parameters over ice
1547      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1548        either wind from stress or stress from wind
1549    o pkg/thSIce:
1550    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1551    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1552       and THSICE_CALC_THICKN
1553    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1554    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1555      to make debugging easier.
1556    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1557    o pkg/bulk_force:
1558      - clean-up comments and parameters ;
1559      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1560    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1561      generate new output for test-experiment: aim.5l_cs.thSI
1562    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1563      testreport accordingly
1564    
1565    checkpoint58e_post
1566    o SEAICE_CGRID adjoint done
1567    o R_STAR adjoint implemented.
1568      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1569      * need to sort out init. of h0facc, etc.
1570    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1571      to be able to use it in pure forward.
1572    
1573    checkpoint58d_post
1574    o upgrade simple test-experiment to tutorial example:
1575     step.1: duplicate the experiment and (step.2) will remove the old copy.
1576      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1577      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1578      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1579      tutorial_global_oce_biogeo    <- copy of dic_example
1580      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1581      tutorial_plume_on_slope       <- copy of plume_on_slope
1582      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1583      tutorial_global_oce_optim     <- empty for now (David ?)
1584      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1585     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1586    o correct a sign problem in cost_scat.F
1587    o obcs and ptracers: fix boundary conditions for advections schemes
1588      with larger stencil
1589    o thsice adjoint: start
1590    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1591      completeness
1592    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1593      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1594    o ptracers adjoint:
1595      * avoid extensive recomputatations
1596      * fix missing re-init. of gptr (missed by TAF)
1597    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1598      me to turn off the excessive output to STDOUT that this package produces
1599    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1600      and add those terms in Vector-Invariant formulation.
1601    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1602      if the control period (xx_hfluxperiod etc) is 0
1603    o in profiles pkg, clean routines and fix details
1604    o in ecco pkg, reading ssh data:
1605      fix problem in case the model does not start at iter0=0
1606    o fix mnc-pickup/restart for ptracers
1607    o new package prifiles:
1608      code to compute profile-based cost by Gael Forget
1609      (modifs in ecco, ctrl, autodiff)
1610    o Benign bug fix in initialization (spotted by M. Mazloff) of
1611      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1612    
1613    checkpoint58c_post
1614    o adjoint: finish NLFS adjoint and provide reference output in
1615      verification/global_ocean.90x40x15/results_ad_nlfs
1616    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1617      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1618      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1619      with SEAICE_CGRID defined.
1620    o move calendarDumps from "data" to "data.cal" and clean-up the code
1621      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1622    o add useEXF & useCAL flags (for now, set in hard-coded way)
1623    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1624      (were missing in NH mode, and wrong in quasihydrostatic mode).
1625      waiting for Chris updated version of calc_gw to add those CALLs.
1626    o fix bug in quasihydrostatic S/R ;
1627      add a test for this option: global_ocean.90x40x15.qshyd
1628    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1629      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1630    o add on/off flag useOffLine for package OFFLINE
1631    o seaice:
1632      - modify advection so that it works also on the C-grid
1633      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1634        problem in multi-tile runs with C-grid
1635      - add flags for clipping ice velocities and/or masking solver forcing
1636      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1637        C-grid solver
1638      - added a few comments to seaice_diffusion.F
1639      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1640        are now exclusive)
1641      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1642        required re-ordering the code a little:
1643       + make DAIRN global variable (defined in SEAICE)
1644       + move computation of the viscosities eta and zeta into a new separate
1645         routine (because I need to recompute them in seaice_ocean_stress.F)
1646    
1647    checkpoint58b_post
1648    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1649      update output.txt of exp. aim.5l_cs.thSI
1650    o various mnc cleanups and improvements:
1651      + shrink lookup tables by factor of ~4
1652      + better error reporting when running out of lookup space
1653      + able to handle longer path/file names (up to 500 chars)
1654    o adjoint:
1655      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1656      - TBD: "hidden" mom_vecinv recomp. in dynamics
1657    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1658     (allow to differentiate between forcing components using new integer flags:
1659      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1660     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1661    o ecco
1662      - enable trend removal from SSH anomaly obs.
1663    o adjoint
1664      - a fix for PmEpR when #undef EXACT_CONSERV
1665      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1666      - try to fix "hidden" recomp. in forward_step for NLFS
1667        (NLFS seems broken sometimes after I checked it in)
1668    o seaice:
1669     - add c-grid version of the dynamic solver:
1670       + three new routines that are the c-grid substitute lsr, dynsolver
1671         and ostres
1672       + put a few fields that were local to dynsolver into global common
1673         blocks, so that I can move the computation of stresses etc into
1674         seaice_lsr (saves coding but may break the adjoint).
1675     - replace more hardwired parameters by runtime parameters
1676     - add ice masks that mask the rhs of the implicit solvers where there
1677       is no ice (commented out in seaice_dynsolver, because i am not sure
1678       if this works properly), eventually this should replace the clipping
1679       of ice velocities in seaice_dynsolver to +/-40cm/s.
1680    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1681      include it only where its needed
1682    o move balancing of fluxes before the call of external_forcing_surf
1683    o seaice:
1684      - correct units of turning angles (now they are really in degrees)
1685      - move computation of GWATX/Y out of main routine into dynsolver
1686      - initialize GWATX/Y in seaice_init
1687    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1688      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1689    o seaice: add runtime flags for turning angles (default to zero)
1690    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1691      and trend from exf forcing and ctrl control adjustments
1692    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1693      (since checkpoint57x_post)
1694    o change the default rotation period to 86164.s = the Earth rotation
1695    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1696      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1697    o seaice advection: add code for choosing between the default (2nd order
1698      central differences) and multiDim advection schemes provided by
1699      pkg/generic_advdiff
1700    o seaice:
1701      - removed all references to SEAICE_GRID.h fields from
1702        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1703        (cubed-sphere configuration will change a little)
1704      - grid computations in seaice_init are obsolete now.
1705      - cleaned up code a little so that is easier to read (hopefully).
1706      - added new (better?) discretizations of default advection and diffusion
1707        (turn on with SEAICEuseFluxForm)
1708      - replace 1 in 3d global fields by kSurface in growth.F
1709      
1710    checkpoint58a_post
1711    o seaice:
1712      - bug fix in advect.F
1713    o shelfice:
1714      - separate shelfice load anomaly from pload (breaks with time
1715        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1716        Its default is 0., but it may be computed more cleverly from (unknown)
1717        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1718        done offline. A good approximation of the pressure load anomaly is
1719        necessary to avoid large initial adjustment processes underneath
1720        deep-reaching shelfice.
1721      - small fix in ISOMIP shelfice_thermodynamics
1722      - add more sophisticated thermodynamics of Hellmer (1989), this is
1723        now the default
1724      - give a few constants more intuitive names
1725    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1726      if bulk formulae are used in long integration (especially EmPmR). Turn
1727      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1728      if balancePrintMean, the imbalance that is substracted is printed to
1729      STDOUT.
1730    o fix bug (typo) in obcs_apply_eta.F
1731    o add a new package shelfice which enables us to model the circulation
1732      underneath shelf-ice with draughts of hundreds of meters.
1733     - works
1734     - to do: + include improved thermodynamics
1735              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1736                instead of new field kTopC
1737              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1738                instead of new field R_shelfIce and new code in ini_depth.F
1739                and ini_mask_etc.F?
1740              + adjust vertical mixing schemes?
1741    o seaice pkg:
1742     - add a cpp-flag to include a simple formula for a salinity dependent
1743       freezing point of sea water at the surface
1744     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1745       meridional stresses are now different (and hopefully correct)
1746    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1747       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1748       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1749    o pkg/diagnostics: add options and parameters for regional-statistics
1750       diagnostics ; define regions by reading a region-mask from a file
1751       (might add other options later)
1752    o pkg/bulk_force:
1753     - add option and parameters to use AIM surface-flux formulae.
1754     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1755       others forcing fields (defined in PARM05, parameter file "data") are loaded
1756       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1757     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1758     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1759     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1760       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1761     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1762    
1763    checkpoint58
1764    o add "--embed-source" option to genmake2 which, when the supporting
1765      tools can be compiled (as determined by genmake2) will turn on the
1766      embed_files package which then embeds the entire MITgcm source code
1767      (*.[fFhc] + Makefile) used for the build within the executable
1768      - requested by CNH but off by default
1769      - adds a paltry <9MB to the mitgcmuv executable in most cases
1770      - only writes the output when useEMBEDSRC in eedata is true
1771    o clean up 3-dim. relaxation codes:
1772      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1773      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1774      * Thanks to Tom Haine for testing!
1775    
1776    checkpoint57z_post
1777    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1778      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1779    o fix the pickup behavior for obcs in combination with ptracers
1780    o fix a bug in ptracers_external_fields_load
1781    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1782      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1783    o transfered surface NH pressure to eta field (if exactConserv).
1784    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1785         and update lab_sea output.txt file.
1786    o completing 3-dim. relaxation code: additional term
1787         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1788      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1789      * At compile time, in "EXF_OPTIONS.h" set
1790          #define  ALLOW_CLIMTEMP_RELAXATION
1791          #define  ALLOW_CLIMSALT_RELAXATION
1792      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1793          tauThetaClimRelax3Dim = 15552000.0,
1794          tauSaltClimRelax3Dim  = 15552000.0,
1795      * 3 cases:
1796          1) Use a constant-in-time 3-dim. field
1797          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1798          3) Real-time relax. to time-evolving prescribed field
1799    o Adding Laplacian-type smoothness constraint on
1800      initial and boundary (forcing) controls (ic, bc)
1801      * enable at compile-time via
1802        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1803      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1804      * Absolute scale somewhat unclear so far
1805      * no area weighting was included since no other cost term does so far
1806    
1807    checkpoint57y_post
1808    First step for a NLFS adjoint
1809    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1810    o new init. routines for calc_r_star, calc_surf_dr
1811    o still need to deal with ini_masks_etc
1812    o testreport seemed happy
1813    checkpoint57y_pre
1814    
1815    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1816    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1817    o add new offset feature to offline pkg (plus minor cleanup)
1818    o cfc fixes for final year of integration
1819    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1820      be in GCHEM_OPTIONS).
1821    
1822    checkpoint57x_post
1823    o fix testreport Pb in multiple test experiment.
1824    o cleanup our namelist syntax in verification:
1825      - make it more F95 standards compliant (some work still needed)
1826      - allows the vast majority of our tests to work with gfortran
1827    o Non-Hydrostatic:
1828     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1829     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1830    o Allow to apply AB on T,S rather than on AB(gT,gS):
1831     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1832     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1833       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1834     - need a "clever" read_pickup to restart from the other AB formulation
1835    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1836    o remove some unused variables (reduces number of compiler warnings)
1837    o adjoint
1838      * Disable useVariableViscosity for adjoint for time being
1839        (there are a number of extensive recomputations)
1840      * Initialize certain variables needed for adjoint
1841    
1842    checkpoint57w_post
1843    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1844                 fix the singleCpuIO RS version of MDSWRITEFIELD
1845       and add a WARNING if using globalFiles=T with multi-processors.
1846    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1847      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1848    o tracer advection scheme:
1849      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1850       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1851       was not very convenient).
1852      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1853       (further tests needed for the implicit DST & Flux-Limiter schemes).
1854    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1855      and sRef for convenience, handy, when you want to initialize
1856      ptracers in a large domain with a constant non-zero value. Also,
1857      untangle ptracers_init.F a little.
1858    
1859    checkpoint57v_post
1860    o change dome exp. to use variable viscosity in side-drag terms.
1861    o remove all the files from the cfc_offline test since they are now
1862      incorporated into tutorial_cfc_offline which has been producing
1863      identical results for a few days of testing
1864    o add new parameter: sideDragFactor to enable half-slip-side BC
1865      and change side-drag S/R to use viscosity from mom_calc_visc
1866      (can switch back by setting sideDragFactor=0.); affects results at
1867      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1868       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1869    o vorticity & strain are now computed without masking, to account for
1870      no-slip-side BC in variable viscosity calculation ; mask is applied
1871      anyway later on, before computing advection/coriolis terms.
1872    o modify exp4 to test new obcs support for reading from external files
1873      and for passive tracers
1874    o fix behavior of ptracers_monitor when monitor output is written to a
1875      netcdf-file; still not independent of monitor.F (writes in the same
1876      file).
1877    o change default value of tRef (put a uniform, meaningful value for ocean
1878      & atmos) and initialize sRef (was missing, as Martin mentioned).
1879    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1880      to be proportional to enstrophy dissipation length.  Thus,
1881       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1882      This is now consistent with Smagorinsky and with the manual.
1883    
1884    checkpoint57u_post
1885    o OBCS and PTRACERS: add open boundary support for passive tracers
1886      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1887        OB-values from file; this is not different from the way theta and salinity
1888        are treated
1889      - however, Orlanski-radiation conditions are not supported, and the model
1890        will stop if you use pTracers and Orlanski at the same time.
1891      - beefed up the rountine obcs_external_fields_load: now only those open
1892        boundary values are overwritten with values from files for which there
1893        are really files, otherwise the OB-fields remain untouched. This makes
1894        it possible to use different OBs at different ends of the domain (as
1895        with EXF)
1896    o reduce number of exch calls in shap_filt (s2).
1897    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1898      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1899    
1900    checkpoint57t_post
1901    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1902    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1903      same truncation, independent of the face number: affects affects several
1904      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1905    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1906      note that biharmonic viscosity + no-slip was not tested in any experiment.
1907    o fix bug in non-linear free-surf side-drag ; generate new output for
1908      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1909    o make mnc honor the writeBinaryPrec flag for most kinds of output
1910    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1911    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1912      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1913    o add brackets in multi-terms sum to get same truncation, independent of
1914      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1915      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1916    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1917      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1918      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1919      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1920      Suggested values of viscosity parameters found in mom_calc_visc.
1921      Many new viscosity diagnostics available.
1922    
1923    checkpoint57s_post
1924    o Add clearing-house for viscosity calculations, mom_calc_visc and
1925      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1926      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1927      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1928      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1929      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1930      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1931      ViscAhStrain and viscAhTension are now retired.
1932    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1933    o In response to JMC's bug report, genmake2 now ignores any soft-links
1934      that it finds in the *current* directory when searching for files.
1935      Soft-links found in any other source directories will still work as
1936      they did before.
1937    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1938      a C routine to unlimit the stack size
1939    o mnc-ify pkg/aim snapshot vars
1940    o mnc-ify pkg/land as requested by Daniel
1941    o various changes to mnc including:
1942      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1943      - output can now be grouped so that all files within a group
1944          change the ITER portion of their names in lock-step together
1945      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1946          and works with both EXCH1 and EXCH2 (but needs more testing)
1947      - writing works for all verification test cases w/ g77 on Linux
1948    
1949    checkpoint57r_post
1950    o make MNC variable initialization happen earlier
1951    o add diagnostics for (almost) each term of the momentum Eq.
1952    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1953    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1954    o remove MINIMAL_TAVE_OUTPUT option ;
1955      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1956    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1957      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1958    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1959    o add time-dependent SST, SSS control
1960    o cost terms in ecco/ modularized (new cost_generic.F)
1961    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1962    o new infrastructure for seaice model vs. obs misfits in seaice/
1963      * driver from the_main_loop.F is seaice_cost_driver.F
1964      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1965      * gradient check in Exp. 6a of natl_box_adjoint/
1966    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1967      (see README file)
1968    
1969    checkpoint57q_post
1970    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1971    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1972      - bug was reported by Jean-Michel and Ian Fenty
1973    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1974      update exp. cpl_aim+ocn output.
1975    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1976      Needed for high-res. runs with large global files
1977      to be able to limit tapelev size
1978    o Changed some tests for adjoint:
1979      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1980      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1981      * global_ocean.90x40x15/ back to default 3-level checkpointing
1982    o Modifications to enable scripted COMMON to MODULE conversion
1983      * verification/OpenAD/code/ has necessary scripts and description;
1984      * converts, compiles and runs successfully;
1985    
1986    checkpoint57p_post
1987    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1988    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1989      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1990    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1991    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1992      (was already the case for dissipation with mom_vecinv,
1993       and also the case for grad.PhiHyd when staggered-timeStep)
1994      This will allow to put dissipation out-off the AB time-stepping.
1995     Unfortunately, affects truncation error. Update output of exp. that "fails"
1996      (cg2d matching number) and leave the others for later: front_relax(10),
1997      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1998      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1999    
2000    checkpoint57o_post
2001    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2002      (2) its ready to be documented during the 20050801 DocFest
2003    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2004      for ideal_2D_oce and lab_sea on linux_ia32_g77
2005    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2006      in global1x1_tot/code_seaice_adj to access indices 32, 33
2007      (worth another tag)
2008    
2009    checkpoint57n_post
2010    o adding precip control xx_precip 32
2011    o adding swflux control xx_swflux 33
2012    o Replacing 10 forcing penalty cost routines by 1 generic.
2013    o Implementing partitioning in time-mean and variable adjustment
2014      for atmos. state.
2015    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2016    o in natl_box_adjoint:
2017      * updated exp 1 to 10
2018        (but does not have time-mean vs. variable split results yet)
2019    o updated global1x1/*_seaice_adj/
2020      to incorporate latest changes
2021    o enable useSingleCpuIO for mdsio vector routines
2022      (applies in particular to tapelev I/O)
2023    o removed inefficient K-loop in all active_file*control*.F
2024    
2025    checkpoint57m_post
2026    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2027      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2028    o pkg/exch2: filling of face-corner halo regions is optional
2029      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2030    
2031    checkpoint57l_post
2032     tag before updating tutorials (pre-release-2)
2033    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2034       for output and interpolation of input fields onto model grid)
2035    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2036       Affects results of exp. rotating_tank ; update output.txt.
2037    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2038          and taking the square quantity and/or using a fraction-weight field.
2039    o fix aim_diagnostics_init.F mate numbers.
2040    o add mnc output capability to diagnostics/diagstat and update
2041      our cvsignore files for the ACSII output generated
2042    
2043    checkpoint57k_post
2044    o lab_sea now uses diagnostics package and provides a suite of
2045      new EXF diagnostics output.
2046    
2047    checkpoint57j_post
2048    o exf
2049      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2050        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2051        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2052      * extended diagnostics output
2053        - now includes all EXF variables
2054        - hs, hl moved to common block
2055        - separate S/R for diagnostics, called after ctrl vector is added
2056        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2057        - EXFqnet contains true Qnet (i.e. includes qsw)
2058      * updated verif. lab_sea, global_with_exf
2059      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2060        to ensure that diagnostics sees a true EXFqnet
2061    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2062    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2063      several times with different frequencies.
2064    o mnc-ify the thsice package as requested by Daniel Enderton
2065      - the monitor--MNC output needs work
2066      - many attributes need to be added (most are currently blank)
2067    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2068      - many attributes need to be added (most are currently blank)
2069    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2070    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2071    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2072      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2073         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2074    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2075     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2076    
2077    checkpoint57i_post
2078    o Diagnostics package was changed: diagnostic allocation is now deactivated
2079      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2080    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2081      add 1rst Order upwind vertical Shear.
2082    o add a quick fix for A/B checkpointing in OFFLINE mode
2083    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2084      end-run around the C/Fortran linking horror in eesup/src/timers.F
2085    o added pkg/runclock: allows user to terminate run based on wall clock
2086    o added non-hydrostatic scaling parameter: nh_am2
2087    o pkg/my82: futile attempt to make results compiler-independent by adding
2088      some "_d 0", etc. no effect.
2089    o for mnc output, fill the 'T' coordinate var with myTime and create a
2090      separate 'iter' variable for iteration count
2091    o pkg/diagnostics:
2092      add new capability: output of Global/Regional & per-level statistics ;
2093      tested against monitor output (including land & thSIce) on various exp.
2094    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2095    
2096    checkpoint57h_done
2097      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2098      data.diagnostics, data.gchem, data.ptracers) is done.
2099    
2100    o pkg/diagnostics: prepare for Global/Regional statistics.
2101      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2102    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2103      and rename it: DIFFERENT_MULTIPLE
2104    
2105    checkpoint57h_post
2106    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2107    o pkg/diagnostics: change output frequency, now in seconds (instead
2108      of Nb of iterations). This requires to change data.diagnostics.
2109    checkpoint57h_pre
2110    
2111    o in mnc, let the user create the output dir if both mnc_outdir_date
2112      and mnc_outdir_num are false
2113    o add fflags() to pkg/diagnostics which allows one to specify, on a
2114      per-file basis, the file precision [default behavior is unchanged]
2115    o added diagnostics to pkg/kpp, including computation of mixed layer
2116      depth based on a temperature/density criterion
2117    o updated verification/natl_box to test the new pkg/kpp diagnostics
2118    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2119    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2120    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2121      not mnc -- this mistake was found by JMC and is now corrected
2122    
2123    checkpoint57g_post
2124    o add Adams-Bashforth 3rd Order time stepping:
2125      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2126      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2127    checkpoint57g_pre
2128    
2129    o make lambda[Theta,Salt]ClimRelax spatially varying
2130      (default remains spatially uniform constant based on tau)
2131    o added new control variables
2132      * init. uVel, vVel, etanN
2133      * lambda[Theta,Salt]ClimRelax
2134    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2135      (suggested by G. Forget)
2136    
2137    checkpoint57f_post
2138    o add parameter "baseTime" = model base time = time at iteration zero
2139      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2140      account for baseTime shift
2141    o move Coriolis arrays from PARAMS.h to GRID.h
2142    checkpoint57f_pre
2143    
2144    o mnc-ifying the seaice package
2145    o introduced an alternative length scale calculation for use in the limiting
2146      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2147    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2148    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2149      as well as grad(vort3).  Made it compatible with both approximate form
2150      for the cubed sphere and full form of these gradients.  Added flag
2151      useFullLeith to select between approximate and full form.  
2152    o add "d0" in getcon.F to reduce differences between compilers/platforms
2153      update output.txt of exp. fizhi-gridalt-hs
2154    o change port_rand funtion to allow to set the seed.
2155    o fix obscure MNC bug involving conversion between reals and integers
2156      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2157        new version is now more standards-compliant
2158    o adjoint-related modifications
2159      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2160      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2161      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2162    
2163    checkpoint57e_post
2164    o Adding eddy stress controls a la Ferreira et al.
2165    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2166    
2167    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2168      update output.txt of exp. fizhi-gridalt-hs
2169    o add more "Z" dimensions and associated coordinate vars to MNC
2170    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2171    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2172      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2173      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2174      months and years.  Requires pkg/cal.
2175    o diagnostics: add pickup functionality
2176      - off by default for backwards compatibility
2177      - current version only uses MDSIO -- MNC will be added
2178    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2179    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2180    
2181    checkpoint57d_post
2182    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2183    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2184      output from the diagnostics package
2185    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2186    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2187      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2188    o add coordinate variables to the MNC output from the diagnostics package
2189    o change MNC-flags default value: true when useMNC=TRUE
2190    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2191      the ability (off by default) to read the grid information using MNC
2192    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2193    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2194    o do snap-shot diagnostics at the middle of the time-interval (instead of
2195      at the end).
2196    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2197      new test for AIM with thSIce + slab-ocean
2198    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2199    o move state variable diagnostics to the beginning of the time step ;
2200      (note: still needs some work specially for snap-shot diagnostics)
2201      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2202    
2203    checkpoint57c_post
2204    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2205    o generate new output.txt files on faulks with g77 & the new -ieee option
2206    checkpoint57c_pre
2207    
2208    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2209      update output.txt of exp. global_ocean.90x40x15
2210    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2211      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2212    o add saltFlux(+File) forcing capability with periodicExternalForcing
2213    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2214    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2215    o improvements for the MNC output from DIAGNOSTICS:
2216      - correct handling of the unlimitied dimension
2217      - all dims now have associated coordinate variables
2218      - variables located at U, V, and Corner ("Z") points are now written
2219        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2220        *all* data points are output
2221    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2222    o added pkg/seaice/seaice_monitor.F
2223    o mdsio_readfield.F can now read files visible only to master MPI process.
2224    o pkg/seaice: some test code for ice-modified ocean stress
2225    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2226      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2227      spurious negative numbers for precipitation and humidity.  Will cause
2228      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2229    o pkg/ctrl/
2230      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2231        May be enabled via doPackDiag
2232      *  introduce z-scaling of
2233         + gradient (doZscalePack) and
2234         + control (doZscaleUnpack)
2235    o pkg/mdsio/
2236      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2237      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2238    
2239    checkpoint57b_post
2240    o simplify options in diagnostics_fill arguments (remove weird combinations)
2241    o fix MNC coordinate variables so that they now contain per-face index
2242      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2243      general, EXCH2 grids are only aligned to a "local" coordinate system
2244    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2245    o Implement instantaneous output within pkg diagnostics:
2246      setting a negative frequency in data.diagnostics produces
2247     "snap-shot" output (as opposed to time-average if freq > 0)
2248    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2249      NOTE: change ptracer diagnostics name: use 2 characters to work with
2250            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2251    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2252      becomes the coordinate variable for the 'T' dimension
2253    o add CF-style coordinate variables to MNC
2254      - just a first cut:  numbers are meaningless on the cubesphere and
2255        missing along the T axis but otherwise it works!
2256    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2257    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2258    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2259      this is based directly on what the model compute, so that the content of
2260      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2261    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2262    o clean up build options files for SunOS, in particular
2263      - remove -traditional from xmakedepend
2264      - change -xarch=v9 to -xarch=native for f77
2265      - restore use of make (not gmake)
2266      - add CC=gcc if using g77
2267    o changes per discussion of AM, JMC, & EH3 today:
2268      - move redundant "grid" variables out of "state" -- in preparation of
2269        creating proper CF-style coordinate variables and in recognition
2270        that any/all grid variables can be easily copied (eg. w/NCO) from
2271        the grid files into any of the other NetCDF files
2272      - *always* output grid variables with MDSIO (this will eventually be
2273        changed)
2274      - output MNC grid file if useMNC is true
2275    o every instance of _END_MASTER() has been found and replaced with
2276      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2277      preprocessors
2278    o re-arrange diagnostics pkg initialisation:
2279     - allow each package to extend the available diagnostics list
2280     - add some checking and fix small problems (multi-threaded, ...)
2281     - new S/R diagnostics_fill (replace fill_diagnostics):
2282       look through the short list of active diag. (instead of the long list)
2283       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2284    
2285    checkpoint57a_post
2286    o this set of changes restores TAMC compatibility
2287      tested for global_ocean.90x40x15 adjoint on trough
2288      (what a pain)
2289    
2290    checkpoint57a_pre
2291    o some modifs in tools/build_options for sunos
2292    o call ctrl_pack for ctrl at end for optimcycle=0
2293    
2294    checkpoint57
2295    o add horizontal bi-harmonic viscosity for vertical velocity
2296      - new parameter viscA4W (defaults to viscA4)
2297      - affects only non-hydrostatic code
2298      - to be done: no-slip lateral boundary conditions
2299    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2300    o implement Implicit Vertical advection for pTracers
2301    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2302      (implemented also for implicit vertical diffusion & advection)
2303    o OBCS: extend application of tracer open boundary conditions
2304      to a strip beyond the boundary of width Olx/Oly
2305    o add call monitor to TAF set of required calls (flow directives)
2306      and include in natl_box_adjoint
2307    o untangle a few ifdefs related to cost, ctrl, autodiff
2308      untangel a few ALLOW_ECCO_OPTIMIZATION
2309    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2310      (theta2, salt2 in ecco_cost_weights)
2311    
2312    checkpoint56c_post
2313    o OBCS as control variables
2314      - update ctrl_ad_diff.list, obcs_ad_diff.list
2315      - remove balance of obcs controls from default
2316      - fix index bug nobcs in ctrl_init
2317      - fix dummy fields filen in ctrl_pack
2318      - add dummy weights for obcs
2319    o lsopt: comment out fort.94 output
2320    o optim:
2321      - remove unnecessary header files
2322      - adjusted namelists
2323      - add xerbla.F to Makefile
2324    o exf:
2325      - multiple modifications of exf_check_range
2326      - unit change in exf_init_runoff from [m/year] to [m/s]
2327    o mdsio:
2328      - i/o-vector change debugLevel from debLevA to debLevB
2329    
2330    checkpoint56b_post
2331    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2332      is called from DO_THE_MODEL_IO
2333      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2334      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2335      - clean up PTRACERS_WRITE_TIMEAVE a little
2336    o add another verification experiment that tests both the cfc-pkg and
2337      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2338      reactive tendencies treated inline with regular timestepping
2339    o testreport previously did a lousy job of comparing small numbers, so
2340      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2341      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2342      testreport.
2343    o ptracers_monitor: bug fix for MPI
2344    
2345    checkpoint56a_post
2346    o GCHEM: finish reorganizating the package
2347      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2348        (introduces another 3D-array for each passive tracer, but only if
2349        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2350        gchemTendency is not needed because the timestep is done separately)
2351      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2352      - GCHEM is now---more or less cleanly---separate from PTRACERS
2353      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2354        so clear to me how that should be done in a general way.
2355    o CFC: improve formatting of output in CFC_ATMOS
2356    o PTRACERS:
2357      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2358        that ALL experiments with ptracers enable can be checked. This makes
2359        GCHEM_MONITOR obsolete.
2360      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2361        monitorFreq
2362      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2363    o add PTRACERS (PTR0[1-5]) to testreport output
2364    o exf_check_range:
2365      * default changed to .TRUE.
2366      * will check values for niter0 if debLevA, every timestep if debLevB
2367      * STOP in exf_check_range if 'out of range'
2368      * range chosen generous to allow for potential extema
2369      TBD: a version with stricter range
2370           permitted range would be runtime parameters
2371    o GMredi:
2372      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2373      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2374      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2375    o GCHEM:
2376      - move call to GCHEM_FORCING_SEP, so that it is now called before
2377        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2378      - introduced a useGCHEM runtime flag and applied it everywhere.
2379      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2380        this flag is now only visible within GCHEM-pkg routines.
2381      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2382        be replaced by a 3D array that is computed before thermodynamics; for
2383        this, the tracer ID iTracer had to be included into the parameter list
2384        of ptracers_forcing
2385      - set up forward_step to call gchem_forcing, that will replace
2386        gchem_forcing_int in ptracers_forcing
2387      - cleaning up
2388    o small cleaning of exch2: remove files that are also in eesupp/src
2389    
2390    checkpoint56
2391    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2392    o mnc: cleanup "full" files--fixes out-of-memory problem
2393    o ECCO-GODAE
2394      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2395      * fully merged and updated from SIO code
2396        windstress sign change affects
2397        - exf_inscal_[u/v]stress
2398        - sign of xx_tau[u/v] adjustments
2399        - signs in cost_scat
2400      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2401      * natl_box_adjoint updated and compressed
2402      * 2-level checkpoint switch added
2403        (tested in EXP. 1 of natl_box_adjoint)
2404      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2405    o SVD
2406      * first complete, non-hacked version for SVD calculations
2407      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2408        performed via direct access files admtlm_vector.it????
2409        (via ctrl_[un]pack)
2410      * optimcycle is used for ARPACK iteration counter
2411        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2412      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2413        and add linear transforms where necessary
2414      * controls are initial/final SST, SSS (can be extended; need to check
2415        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2416    o mdsio: filename info to both stderr, stdout
2417    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2418      from sign change
2419    
2420    checkpoint55j_post
2421    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2422      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2423    o add consistent build directories and .cvsignore files to verification
2424    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2425    o make all subroutines 30 or less characters in length for certain older
2426      compilers to work (a thorough search only turns up two routines in
2427      pkg/ptracers)
2428    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2429      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2430    
2431    checkpoint55i_post
2432    o change arrays for total vertical diffusivity (2.D if explicit,
2433      3.D if implicit) ; each ptracer uses its own background value.
2434    o added mnc/NetCDF output capability to ocn_compon_interf
2435      - added bits to verification/cpl_aim+ocn so that it can run on
2436        ITRDA and other clusters without the mpirun "-wd" option
2437    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2438      configuration
2439    o give MNC the ability to create additional files rather than
2440      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2441      - the default is just less than 2GB which is a practical limit
2442        on many systems
2443    o Compute the non-local term using either KPP vertical diffusivity (=default)
2444       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2445    
2446    checkpoint55h_post
2447    o add verification test "vermix"
2448    o remove all the *_ioinc flags and replace with the single global
2449      outputTypesInclusive flag
2450    o allow to set a vertical profile of vertical diffusivity for T & S
2451    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2452    o useMNC moved from data.mnc to data.pkg
2453    
2454    checkpoint55g_post
2455    o Renaming carbon AD experiments to comply with testreport conventions
2456    o Updating adjoint of Held-Suarez hs94.1x64x5
2457    o Fixing directives for non-ECCO forward_step, after ECCO directives
2458      have been fixed to avoid recomp. of do_oceanic_phys
2459      Works well for global_ocean.90x40x15,
2460      but recomp. issue remains for carbon
2461    o Updating adjoint output for natl_box_adjoint after
2462      pkg/ecco has been modified (see taga c55d_post)
2463    
2464    checkpoint55f_post
2465    o rename to timeave_init_fixed
2466    
2467    checkpoint55e_post
2468    o some delicate re-shuffle of store directives to avoid one
2469      extra call of do_oceanic_physics
2470      affects ecco_the_main_loop.F, do_oceanic_physics.F
2471      checkpoint_lev1_directives.h
2472    o NB: this may break global_ocean adjoint temporarily,
2473      but it is clear how to fix it. Will do later, need this now.
2474    
2475    checkpoint55d_post
2476    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2477    o ecco_cost_weights is modified to 1x1 runs
2478    o modifs to allow observations to be read in as
2479      single file or yearly files
2480    o enable to read exf forcing fields as either
2481      single file or yearly files (flag useExfYearlyFields)
2482    checkpoint55d_pre
2483    
2484    o switch between 2-level and 3-level checkpointing
2485    o add ability of MNC to write local and "partial" (eg. 2D slices where
2486      the full 3D field is never actually stored) arrays to NetCDF files
2487      with the correct (that is, the complete multi-dimensional) set of
2488      array indicies
2489      - used in mom_vecinv() to write the diagFreq output
2490      - tested (demonstrated) in verification/aim.5l_cs
2491    o further mnc-ification
2492      - add verification/lab_sea to the list with mnc setups
2493      - fix undefined mnc v-names in cd_code
2494      - add kpp to mnc output (both snapshot and timeave)
2495    o non-hydrostatic code
2496      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2497        in calc_gw.F
2498      - defaults to viscAh
2499      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2500        friction or Leith) in non-hydrostatic mode, as long as there is
2501        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2502    o pkg/cost
2503      extend simple cost functions to treat time mean quantities
2504      (T,U,V) via cost_accumulate_state from cost_tile
2505    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2506        be 2 times larger than the minimum size the advection scheme requires.
2507        now get a perfect conservation of salt in advect_cs test-exp (updated)
2508    o GGL90 (Gaspar's TKE mixed layer)
2509      - add horizontal diffusion of TKE, requires exchanges in
2510        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2511        default. In OPA there is no horizontal diffusion of TKE but the
2512        mixing coefficients are computed from a horizontal average of TKE of
2513        6 points or so. I think that diffusion has a little more physical
2514        justification.
2515      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2516        was in vain)
2517      - mask tke-variable in ggl90_init
2518    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2519    o fix biharmonic diffusion on CS-grid.
2520    o more obcs stuff
2521      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2522        for reading boundary values. This routine is called from
2523        obcs_prescribe_read
2524      - updated obcs_check
2525      - changed sponge layer relaxation parameter units for days to seconds
2526      - turned off sponge layer by default
2527      - changed argument list of OBCS_CALC to myTime+deltaTclock
2528      - fixed about 35 bugs in obcs_external_fields_load
2529    
2530    checkpoint55c_post
2531    o obcs stuff
2532      - new runtime flags useOBCSprescribe, useOBCSbalance
2533      - re-arranged obcs_calc
2534      - moved exf_getobcs to obcs_prescibe_read
2535        obcs_prescibe_read is called after ORLANSKI stuff
2536        and independent of it (executable can contain all).
2537      - updated obcs_check
2538      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2539        These may be necessary only if tangential velocities are
2540        prescribed at OB, not sure, needs testing.
2541    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2542      which simplifies the calls and passes the ifc check-bounds test
2543    
2544    checkpoint55b_post
2545    o add a 2D scalar, Z location, exchange_2 routine.
2546    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2547      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2548      affects advect_cs results (for the wrong reason): update output.txt
2549    o use a more standard discretization for biharmonic viscosity ;
2550     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2551      affects results of dome set-up: update output.txt
2552    o fix gad_advection.F (CubedSphere part), back to version 1.23
2553    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2554    
2555    checkpoint55a_post
2556    o merged code to
2557      * prescribe/read time-dependent open boundaries
2558        (works in conjunction with exf, cal)
2559      * sponge layer code for open boundaries
2560      * each boundary N/S/E/W now has its own CPP option
2561        (healthy for the adjoint)
2562    
2563    checkpoint55
2564    o up-to-date adjoint of previous breaks
2565      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2566      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2567      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2568      - carbon: * remove tr1-related adjoint verification
2569                * add ptracer as control variable
2570    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2571      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2572    
2573    checkpoint54f_post
2574    o in verification/carbin/ remove experiment related to
2575      ALLOW_PASSIVE_TRACER (array tr1 etc)
2576      code_ad/ input_ad/ results_ad
2577    
2578    o add two new packages
2579      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2580        + subject to optimization (memory)
2581      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2582        + subject to reordering (many GOTOs in the original code)
2583        + so far opps is called for every (i,j) point, and then operates in
2584          the vertical; one may want to reorder the scheme in order operate in
2585          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2586          fields)
2587    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2588      - all verification tests compile and run with linux_ia32_g77
2589      - defaults are compatible with current input files--nothing
2590        should change if you were not previously using MNC
2591      - MNC output has been added in numerous places (eg. timeave)
2592        but there are still a few writes not yet do-able with MNC
2593        (this is in progress)
2594      - flags now allow for either/or/both use of MDSIO and MNC and
2595        documentation will soon follow
2596      - numerous small formatting cleanups for ProTeX
2597    o add version info (via BUILD_INFO.h) to MNC and stdout
2598    
2599    checkpoint54e_post
2600    o add two new packages
2601      - pp81 (Packanowski and Philander, 1981), Richardson number and
2602        stratification dependent mixing
2603      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2604      - these scheme operate in a similar manner as KPP (without ghat, of
2605        course), however there is only one diffusivity that is used for both
2606        temperature and salinity (and passive tracers)
2607    o add offline package
2608    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2609      provided by Stephanie Dutkiewicz
2610    o genmake2: add ability to search for C compilers and cleanup test output
2611      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2612    
2613    checkpoint54d_post
2614    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2615    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2616      leading to additional shift by 5 days each year of integration
2617       (i.e. leading to considerable offset over the years)
2618    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2619    o start with no AB and no initial filtering (staggerTimeStep):
2620      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2621    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2622      (external loading & cpl import/export stay in forward_step.F)
2623    o update coupling interface to work with new staggerTimeStep
2624    o change MDSIO ptracers_pickup.
2625    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2626    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2627    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2628    
2629    checkpoint54c_post
2630    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2631      this affects (truncation error) output.txt of test-exp:
2632       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2633    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2634    o change Qnet to always be the net heat flux, (+upward).
2635      affects (truncation error) output of natl_box exp.: updated
2636    o define the max number of passive tracers in PTRACERS_SIZE.h
2637    o start to test mnc routinely in exp0
2638    o add sea-ice loading (sIceLoad) as a new forcing field.
2639    
2640    checkpoint54b_post
2641    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2642       impressive on Altix and Opteron systems)
2643    o diagnostics can now write NetCDF files through the mnc package
2644    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2645    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2646    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2647      affects (truncation error) output of lab_sea & natl_box exp.: updated
2648    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2649    
2650    checkpoint54a_post
2651    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2652    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2653    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2654    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2655      + internal_wave (shift in writing cg2d_ini_res)
2656    checkpoint54a_pre
2657    
2658    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2659      - modified verification/lab_sea and natl_box_adjoint accordingly
2660    
2661    checkpoint54
2662    checkpoint53g_post
2663    o prepare splitting of thermodynamics: store convect.counter in common block
2664    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2665      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2666    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2667    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2668    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2669    o restore adjointability
2670    
2671    checkpoint53f_post
2672    o modifications that affect AIM experiment results (update output.txt):
2673      - no advection of S at top interface Nr (pkg/generic_advdiff)
2674      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2675    o AIM pkg:
2676      - include stability function into surf.Flux derivative relative to Tsurf
2677      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2678    
2679    checkpoint53e_post
2680    o merged cylindrical coord configuration
2681    o added rotating_tank experiment
2682    checkpoint53e_pre
2683    
2684    checkpoint53d_post
2685    o faulks upgraded: re-generate output.txt that have changed:
2686       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2687    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2688    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2689    o added Sadourny discretization of Coriolis
2690      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2691      - re-enabled use of omega3 (useAbsVorticity)
2692    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2693      vector-invariant equations
2694      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2695    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2696      hopefully without new bugs
2697      - still to do: biharmonic friction for non-hydrostatic w
2698    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2699    o regenerated output for global_ocean_ebm (using -ieee)
2700    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2701      of mom_common/
2702      - simple re-arrangement of instructions within computing loop
2703    checkpoint53d_pre
2704    
2705    checkpoint53c_post
2706    o new version of coupler for AIM+thSIce and Ocean models
2707     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2708     - land: change Evaporation of snow
2709     - aim with thSIce: fix bug in snow-precip.
2710    o changes to calc_gw.F
2711     - bug fix for w^2 term near the bottom boundary
2712     - (hopefully) improve the lateral slip boundary condtions for use with
2713        partial/looped cells
2714      - because the bug fix changes two verification experiments anyway (exp5
2715        and plume on slope), change the lateral boundary condition from half slip
2716        to the value of no_slip_sides
2717    o ebm package wasnt quite up to the parallel task. Fixed that.
2718    o Adjoint of EBM package + verification
2719      * TLM OK
2720      * ADM not sufficient accuracy yet (needs further testing)
2721    
2722    checkpoint53b_post
2723    o Commiting new energy balance model to repository
2724      * package is pkg/ebm
2725      * verif. is verification/global_ocean_ebm
2726      * references are in ebm_driver.F
2727    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2728    C        Global thermohaline circulation. Part I:
2729    C        Sensitivity to atmospheric moisture transport.
2730    C        J. Climate 12(1), 71-82
2731    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2732    C        Global thermohaline circulation. Part II:
2733    C        Sensitivity with interactive transport.
2734    C        J. Climate 12(1), 83-91
2735    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2736    C        Destabilization of the thermohaline circulation
2737    C        by atmospheric eddy transports.
2738    C        J. Climate 7(12), 1870-1882
2739    o Will need long integration testing.
2740    checkpoint53b_pre
2741    
2742    o created pkg/mom_common in preparation for variable viscosity code
2743    o renamed and split ini_mnc_io
2744    o pkg/land: only liquid water can diffuse or run-off
2745    o AIM using land: soil wetness availability account for snow
2746    o added printMapIncludesZeros to EEPARMS namelist
2747    
2748    checkpoint53a_post
2749    o restore TAMC compatiility for exf_constants.h
2750      (no usage of _d in .h)
2751    o Additional storing in KPP in an attempt to fix
2752      TAMC problem with adjoint of KPP code.
2753      (no success...)
2754      Identical code works fine with TAF.
2755    o Fixed verification/natl_box_adjoint experiments.
2756      Initial conditions for Experiments 4 and 5 are now
2757      set to "SEAICE_initialHEFF=0", which is more reasonable,
2758      and hence gives results closer to that of Experiment 2.
2759      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2760    
2761    checkpoint53
2762    o stable checkpoint with up to date adjoint
2763      TLM tests only run for 1st grdchk at the moment. Its unclear if
2764      this is a code problem or a problem with resetting code for g_
2765      variables that is being autogenerated wrong.
2766      Otherwise:
2767       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2768       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2769         are both still in chaos following their security messes.
2770    
2771    checkpoint52n_post
2772    o various build (mostly genmake2) changes including:
2773      - ability to build/run more easily within Cygwin and MacOS X
2774      - more complicated Makefiles with a stronger dependence on Gnu Make
2775    o pkg/seaice modifications
2776      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2777        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2778        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2779      - changed proxy for geostrophic velocity and updated
2780        verification/lab_sea/results/* accordingly
2781      - removed ADI dynamic solver from pkg/seaice
2782      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2783        they caused a segmentation fault under certain circumstances
2784      - removed unused field WATR
2785    o bug fix in exf-package:
2786      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2787         now reflect that.
2788    o small fixes in the cal-package:
2789      - set reference date to first of January for the 'model'-calendar
2790      - failing of cal_CheckDate in cal_FullDate now actually results in a
2791        warning
2792    o small modifications in exf-package to increase flexibility:
2793      - change climtempfreeze from a constant to a runtime parameter that
2794        is specified in data.exf_clim (default = -1.9)
2795      - introduce runtime parameter windstressmax (default = 2.0) that is
2796        specified in data.exf
2797    o fix in pkg/thsice:
2798      - update Evap (Tsf changes) to be consistent with Latent heat flux
2799      - maintain snow precipitation unchanged (even if Tsf >=0).
2800     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2801    
2802    checkpoint52m_post
2803    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2804      this does not change any of the results, because myIter=0 in swfrac always
2805      lead to jwtype=2 (the default anyway), but the call makes little sense
2806      as a default
2807    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2808    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2809      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2810    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2811    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2812    o extending useSingleCpuIO option to work with new exch2 I/O format
2813      - old-style, missing-tile I/O is still accessible by defining CPP
2814        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2815    o monitor package can write to NetCDF files and/or STDOUT
2816    o fix re-definition bug in MNC_GRID_INIT_ALL()
2817    o doc/api_reference added
2818      - a framework for building an API Reference Manual using all
2819        the "protex" comments embedded in the code
2820      - see pkg/generic_advdiff, pkg/mnc for examples
2821    o MNC:
2822      - make myThid the last argument for all subroutines
2823      - new default for the grid files: NO halos
2824      - add useMNC and other run-time flags
2825      - separate per-file-group handling of the unlimited dimension
2826      - early initialization of MNC w/ flags read at the eeboot stage
2827        and lookup tables set in initialize_fixed
2828      - write all MNC output to a freshly-created directory
2829  o thermodynamics sea-ice (thsice) is now tested with testreport.  o thermodynamics sea-ice (thsice) is now tested with testreport.
2830  o test exp. advect_cs: use the standard cs32 grid ; update output.  o test exp. advect_cs: use the standard cs32 grid ; update output.
2831    o Added functionality to grdchk:
2832      pick global i,j,k position (or nearest wet) where to perform check.
2833    
2834  checkpoint52l_post  checkpoint52l_post
2835  o new land formulation:  o new land formulation:

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