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revision 1.38 by heimbach, Tue Apr 10 22:35:24 2001 UTC revision 1.1116 by mlosch, Wed Jun 3 10:01:20 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs/exf
8      - exf_getffieldrec.F: add a few ". _d 0" and
9                            add code to catch the case fldperiod = 0.  
10      - obcs_precribe_read.F: change if statements so that they match
11                              the variable type (_RL)
12      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
13        exf_iprec) as part of namelist EXF_NML_01
14    o pkg/mdsio:
15      - read/write tiled (local) files: read/write 1-level tile chunk at a time
16        (instead of segment of length sNx); expected to speed up tiled IO.
17    o pkg/exch2:
18      - take buffer copy from/to array out of S/R exch2_send/recv into new
19        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
20        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
21      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
22      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
23        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
24        including Topology header file (and common blocks).
25      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
26        remove 2nd exch call in exch2_s3d_rx (no longer needed).
27      - document S/R arg. list (+ update some comments)
28    o pkg/seaice:
29      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
30        of LSR (this change is expected to change the results slightly because now
31        it uses slightly difference moduli from the second last LSR solution, but
32        that is more consistent with the stress computations; this part of the code
33        is not tested in the verification experiments)
34      - fix diagnostics for flux of ice in case of B-grid
35      - turn strain rates eij and press into global fields within global
36        common block in SEAICE.h for more straighforward diagnostics
37      - fix diagnostics for principal stress components, press, zeta, eta
38        to give something meaning full
39    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
40      new output (all 4 tests) using default rotationPeriod.
41    o pkg KPP:
42      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
43      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
44        and normal grid from 1 to Nr)
45    o Fix computations of L4rdt in mom_calc_visc.F
46    o eesupp:
47      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
48      should be called before a "stop" if we know that all process are going
49      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
50    
51    checkpoint61o
52    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
53    o model/src/ini_curvilinear_grid.F:
54       compute angleSin/CosC when they are not read from a file
55    o pkg/seaice:
56       add pseudo time stepping for LSOR
57    o pkg/exch2:
58       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
59    o pkg/seaice:
60       Adding separate sea ice albedo, drag coefficients, and HO in Southern
61       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
62    o SingleCpuIO:
63       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
64    o pkg/seaice:
65       put exchanged variable in (local) common block for MPI+Multi-Threads
66       to work (necessary with exch1, and for now with exch2 too).
67    o verification: to get more experiments tested with mpi, mth and mpi+mth,
68      change tiling of:
69       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
70       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
71      update output of exp:
72       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
73       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
74      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
75                       (note: output.txt generated on faulks using only 1 tile)
76    o eesupp & mdsio (SingleCpuIO):
77     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
78       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
79       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
80     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
81     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
82       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
83    o pkg/exch2:
84     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
85       read parameter file "data.exch2" if it exists; otherwise try default regular
86       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
87     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
88       with new code (not to be used, just as a backup solution).
89     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
90       in utils/exch2/input.
91    
92    checkpoint61n
93    o eesupp & mdsio (SingleCpuIO):
94      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
95        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
96        receive real*4 array (instead of real*8) to read/write 32.bit files.
97        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
98         and remove new mapping S/R)
99    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
100      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
101        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
102        when using exch2. Add S/R to map global io-buffer to global model array.
103      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
104    
105    checkpoint61m
106    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
107      and add 3 other S/R for other types (R4,R8,RS).
108      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
109    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
110     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
111     - reduce number of macro definitions (keep only those which are used);
112       can always call directly the corrresponding S/R if needed.
113     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
114       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
115     Fixed wrong type of arg in:
116       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
117       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
118     To fix: global_sum of var in common block is wrong (multi-threaded) in:
119       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
120     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
121    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
122      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
123    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
124    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
125      edges are closed (zero depth); might happen with "blank tiles";
126      for now, disabled if using OBCS.
127    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
128      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
129    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
130      to reduce length of 1.D array print in STDOUT.
131    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
132      + use 48 tiles (16x8): this will allow to test "blank tiles".
133    o start to test MPI + multi-threaded (change testreport to skip tests
134      where number of tiles do not match).
135    o genmake2: add option "-omp" to turn on Open-MP ;
136      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
137    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
138      and keep the original tile numbering. Note: compatible with old
139      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
140    
141    checkpoint61l
142    o Overlaps had been forgotten in calculating ijk keys : fixed
143    o fix cyrus makedepend for gcc 4.4
144    o experiment fizhi-cs-aqualev20:
145      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
146      and generate new output. Note: new output is much closer to the old
147      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
148      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
149    o pkg/fizhi:
150     - change to avoid indices going deliberately over array-bounds
151     - remove unnecessary MPI stuff
152     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
153     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
154       does not go over array-bounds and therefore returns reliable output.
155     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
156       this S/R has 4 output arguments, which are used inside "get_alarm";
157       when it is called with the same variable "ndum" in place of several
158       output arguments, this produces weird side effect inside "get_alarm"
159      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
160       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
161       address) and produces error.
162    o tools/gemake2: (March 27-29 2009)
163      with option "-mpi": link *_mpi files from "MODS" dir (this is what
164      testreport does).
165    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
166    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
167       update lab_sea.lsr & lab_sea.salt_plume results
168    o pkg/seaice:
169      Major overhaul of the LSOR solver: change discretization from original
170      finite differences to finite volume. The old routine is still in the
171      file seaice_lsr.F and can be turned on with the CPP-flag
172      SEAICE_OLD_AND_BAD_DISCRETIZATION
173      Along with this change, the discretization of the strain rates is changed.
174      The same flag turns on the old discretization in seaice_calc_strainrates.F
175      All verification experiments with seaice are affected (except for
176      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
177      results by setting the above flag.
178      Further changes involve changes in defaults:
179      - ALLOW_FLOODING is defined and turned on by default
180      - SEAICEadvSnow = .true. is now the default
181      - SEAICEadvSalt = .true. is now the default
182      - SEAICEadvAge  = .true. is now the default
183      - SEAICE_clipVelocities  = .false. is now the default
184                                         (as per J. Zhang's recommendation)
185      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
186        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
187      - seaice_growth: replace computation of UG by a simple copy from wspeed
188    
189    checkpoint61k
190    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
191      seaice_lsr: fixed a few metric terms,
192                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
193                  add more debugging diagnostics
194      seaice_evp: removed superfluous many metric terms of FV discretization
195                  of stress divergence
196                  affects lab_sea, lab_sea.hb87
197      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
198                  of stress divergence for non-evp solver
199                  (this part is not tested anywhere)
200      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
201                  they were effectively only half slip
202                  affects lab_sea.hb87
203      updated all relevant verification experiments (except lab_sea//output_adm.txt
204        which was left over, but fails at level 7 & 6)
205    
206    checkpoint61j
207    o pkg/seaice: turn a few hard wired parameters into run time parameters
208    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
209      time in seconds as promised by the usints in seaice_monitor and exf_monitor
210    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
211      that are not cubed-sphere grids
212    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
213    o pkg/ctrl:
214      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
215    o non-hydrostatic (calc_gw.F):
216      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
217      update output of exp. global_ocean.cs32x15.viscA4
218    o remove backward compatibility for thetaMin,phiMin
219      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
220    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
221      interpolated wind field not only for curvilineargrid=.true., but also
222      for a rotated grid (rotateGrid=.true.)
223    o pkg/exf: add capability to bypass interpolation for runoff
224      by setting yet another CPP-flag
225    o eesupp/src, B-grid exchange:
226      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
227    o autodiff
228      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
229      allows to switch to single-prec common blocks;
230      corresponding switch occurs in tamc.h, integer isbyte
231      TAF store directivs "byte" and "kind" seem equivalent;
232      Most tamc.h have been updated correspondingly.
233    
234    checkpoint61i
235    o autodiff:
236      fix autodiff_sore/_restore indices for obcs
237      (spotted by I. Hoteit, M. Mazloff)
238    o pkg/autodiff, pkg/ctrl:
239      Add flag to reduce all tapelev I/O to single-prec.
240      In data.ctrl set
241        doSinglePrecTapelev = .TRUE.
242    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
243      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
244    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
245      real fresh water flux (not yet)
246    o pkg/mdsio & rw:
247     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
248     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
249    o pkg/flt:
250     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
251       init_fixed & ini_varia.
252     - clean-up & simplify linear interpolation S/R:
253       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
254     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
255     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
256     - add vert. coordinate & horiz. indices to output files.
257     - change vertical position in initial condition, from index to depth [m].
258     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
259       (easier to get to a curvilinear grid) ; delX,delY no longer used.
260    o pkg/ggl90: a few modifications:
261     - fix bottom boundary condition, and interpolation of KappaE
262       near top and bottom
263     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
264     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
265     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
266    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
267      (maintain temporary backward compatibility, until next checkpoint)
268    
269    checkpoint61h
270    o pkg/diagnostics with "periodic averaging diagnostics":
271      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
272    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
273    o pkg/obcs: fix loop ranges for balancing code
274    o pkg/flt:
275     - improve criteria for finding which tile owns a float.
276     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
277    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
278      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
279      with ocean biogeo)
280    o pkg/flt:
281     - do some cleaning and fix the restart ;
282     - add output.txt in flt_example/results to get this pkg tested.
283    o genmake2: add an EXTENDED_SRC option and flag.
284       for now, cannot be turned on on command line (only through genmake_local)
285    o pkg/mdsio: read/write vector:
286     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
287     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
288       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
289     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
290      (drop to 4 digits matching for grad). But this test does not look very
291      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
292    
293    checkpoint61g
294    o pkg/flt:
295      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
296       + make OPTIONS file more standard.
297      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
298      - fix _BYTESWAPIO CPP-Flag
299      - standard reading of file-parameter "data.flt"
300      - fix argument list of S/R FLT_RESTART
301      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
302    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
303    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
304      a still unfixed compiler/optimization bug
305    
306    checkpoint61f
307    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
308      update results of global_ocean.cs32x15.icedyn test.
309    o move getcon.F from model/src to pkg/fizhi.
310    o pkg/exf: add parameter for extrapolation of temp up to the surface
311       and option to prevent negative evap (in bulk_largeyeager04 only).
312    o Prather Advection scheme: fix tracer conservation for divergent flow
313      (e.g., when using NonLin Free-Surface).
314    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
315    o gmredi (Visbeck-variable-K):
316     - add more parameters to Visbeck-variable-K.
317     - use a 5 points average for dSigmaR in Visbeck-K calculation
318       (more "homogenous": same stencil and same weights as in dSigmaH)
319     - update output of ideal_2D_oce experiment.
320    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
321      (#undef REAL4_IS_SLOW)
322     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
323       coordinate variable
324     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
325       (surface forcing fields), removes some of the functionality
326     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
327     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
328       probably not all: copy _RS surface flux fields to RL field before
329       calling DIAGNOSTICS_FILL
330     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
331       real*4 (CALL EXCH_*_RS) versions.
332     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
333       (generate new output).
334    
335    checkpoint61e
336    o gmredi (Visbeck-variable-K):
337      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
338      - change computation of Visbeck-K where Slope > Smax :        
339        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
340        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
341    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
342      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
343    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
344    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
345      does not become too large (to avoid precision problems in implicit-diffusion
346      solver); update ideal_2D_oce output.
347    o pkg ggl90:
348      - in ggl90_cal.F: compute only one set of visc/diff, used to
349        step forward TKE/T/S/momentum
350      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
351        have Prandlt =1)
352    o gmredi (fm07):
353      - add lower limit on Transition layer thickness + lower limit on 1/lambda
354      - allow to set few more params from data.gmredi
355    o pkg ggl90:
356          - add missing sqrt(2) factor in computation of mixing length
357            scale in ggl90_calc.F
358            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
359    
360    checkpoint61d
361    o adjoint modifs
362      - adapt to new field rhoInSitu
363      - allow to revert from StoreDynVars2D, StoreDynVars3D
364        to individual fields
365        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
366    o store 3-D (in-situ) density in commom block (DYNVARS.h)
367     - save 1 rho computation.
368     - no longer modify T & S inland when using down_slope pkg.
369    o gad_som : allow to switch to SOM advection for T & S without corresponding
370      pickup files (using new S/R: MDS_CHECK4FILE).
371    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
372      (for useSingleCpuIO to work in multi-threaded)
373    o pkg/shelfice:
374     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
375       with SHELFICEtopoFile in data.shelfice
376     - move code for reading ice shelf topography and modifying hFacC into separate
377       subroutines of the shelfice package
378     - separate initialisation of "fixed" and "variable" variables
379     - kTopC is not (yet) replaced by kSurfC, although this is possible
380    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
381    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
382      and rename:
383      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
384      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
385    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
386    
387    checkpoint61c
388    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
389      to add mass source/sink of fluid in the interior (3-D generalisation
390      of oceanic real-fresh water flux).
391    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
392    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
393    o new pkg: down_slope
394      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
395      - presently, modify T & S inland (dwnslp_calc_rho.F).
396        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
397      - implementation for ocean in P-coords not tested.
398      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
399    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
400      (to facilitate conversion of oceanic pkg to p-coordinate).
401    o change FIND_RHO to FIND_RHO_2D :
402      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
403    o new pkg: cheapaml
404    
405    checkpoint61b
406    o exch2:
407      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
408      - no longer depend on the order sequence (N,S,E,W).
409      - 3rd exchange no longer needed (tested with 24 tiles).
410      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
411      - exch_UV_A-grid readily available (but not yet tested).
412      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
413      (both are no longer needed) in exch_uv: no effect in forward run; but
414       get truncation error differences with adjoint exch.
415    o exch2:
416     - change index-bounds storage (moved from target to local tile,
417       more intuitive this way) ; rename/remove some variables.
418     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
419    
420    checkpoint61a
421    o exch2/matlab-topology-generator:
422      fix bug in index bounds for N-S internal exchange (hard to tell if this
423      had any effect on the solution).
424    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
425      is exceeded
426    o testreport: modify syntax of awk, so that it works also with
427      awk, and not only with nawk and gawk
428    
429    checkpoint61
430    o autodiff
431      Change default for TAF usage by removing argument '-nonew_arg'
432      This changes TAF subroutine argument list (ordering of active var.)
433      Omission of this flag leads to incompatibility w.r.t. TAMC
434      To restore TAMC-compatibility, need following modifs:
435      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
436      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
437      Tested TAF version is 1.9.22
438      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
439    
440    checkpoint60
441    --->>> This is the last checkpoint for which generating the adjoint
442    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
443    --->>> by default.
444    --->>> Future checkpoints will ommit this flag by default.
445    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
446    o pkg/grdchk: Add gradient check to etan0 perturbations.
447    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
448    o pkg/autodiff: more flexibility in zeroadj.
449      model/src: modifying do_oceanic_phys.F accordingly.
450    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
451    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
452      special setup of gmredi for which the adjoint is stable
453      enough for parameter optimization.
454    o bridging the gap between eddy stress and GM.
455      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
456          along with a change in CPP option (now ALLOW_EDDYPSI).
457      -> when using GM w/ GM_AdvForm:
458          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
459          is applied either in the tracer Eq. or in momentum Eq.
460          depending on data.gmredi (intro. GM_InMomAsStress).
461      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
462      The key modifications are in model/src/taueddy_external_forcing.F
463      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
464    
465    checkpoint59r
466    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
467      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
468      fix option to read coriolis(@ cell-corner) from files with CS-grid.
469    o pkg/mnc: add some attributes to standard 1D-coordinate variables
470    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
471      mass points, when using mnc for output
472      - add runtime parameter (missing_value, missing_value_int) to override
473        default (which is the value of getcon('UNDEF'))
474    o pkg/mnc: prepare mnc for the actual use of missing values with the
475      diagnostics package: small fix in mnc_cw_readwrite.template and more
476      initialisation of never used fields
477      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
478      versions
479    o pkg/thsice/thsice_ini_vars.F added default initial values so that
480      thermodynamics sea ice solver does not blow up when some initial fields
481      are missing.
482    o move from external_forcing_surf.F to ini_forcing.F
483      the p-coord. hack consisting in using pLoad to set phi0surf ;
484      update output of tutorial_global_oce_in_p (affected @ truncation level).
485    o Freshen up a bit hs94.1x64x5, notably:
486      remove rotationPeriod and tRef=5*0. (adjoint only), and add
487      exactConserv=.TRUE.
488    o pkg/generic_advdiff:
489      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
490      applies to files where Temperature & Salinity 2nd Order moments are used.
491    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
492      this uses a dynamically allocated internal state data structure
493      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
494      and requires a fortran 90 compiler
495    
496    checkpoint59q
497    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
498       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
499    o Refresh tutorial_global_oce_biogeo, notably:
500      - change bathymetry (put back seamounts in ACC, use hFacs)
501      - change EOS (POLY3 --> JMD95Z)
502      - use Bryan-Lewis vertical diffusivity
503      - use multidimensional advection
504      - remove old virtual virtual in dic pkg, now done through ptracer pkg
505      - change a couple of parameters in dic pkg
506    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
507    o pkg/obcs: change default to OBCSfixTopo = .true.,
508      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
509      - replace "debugMode" with "debugLevel .GE. debLevB"
510    o implementation of TAF directives for gchem,cfc,dic
511    o remove "exp5" (replaced by tutorial_deep_convection).
512    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
513      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
514      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
515      --> changes results in exp4, seaice_obcs
516    o tutorial_deep_convection :
517      update the set-up and increase resolution and domain size ; start
518      from pseudo initial conditions = output at t=120mn in order to see
519      something happening when running testreport.
520    o pkg/seaice: add os7mp as an advection scheme
521                  add check for advection schemes
522                  add a flag for restoring T and S underneath sea ice
523    o pkg/my82: add netcdf-support and diagnostics
524    o thsice pkg:
525      - Now hsMax limits snow height by turning it into ice following
526        flooding scheme (and now conserving energy)
527      - Slight rewriting of the formula in thsice_calc_thick.F
528      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
529      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
530    
531    checkpoint59p
532    o gchem / dic / cfc :
533      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
534      - add new parameter files: "data.dic" & "data.cfc" ;
535      - various re-arrangement in initialisation & header file ;
536      - fix tutorial_global_oce_biogeo for multi-threaded test.
537    o pkg/dic: test for "pickup_dic" file when restarting ;
538      if no pickup-file, can restart with a re-initialised pH (same as it did
539      before) providing pickupStrictlyMatch is set to False.
540    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
541      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
542    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
543      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
544    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
545     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
546       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
547    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
548       scheme to use for vorticty-term ;
549     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
550       (with default selectVortScheme, return to original discretisation)
551     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
552    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
553    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
554      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
555      also fix diagnostics VISCAHW & VISCA4W.
556    
557    checkpoint59o
558    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
559    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
560      move a few statemens out the main loop into separate loops
561    o pkg/shelfice:
562      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
563        (kg/m^2/s), does not break tests, because in verification/isomip,
564        rhoConstFresh=rhoConst (by accident)
565      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
566      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
567        new file model/src/seawater.F, so that they are available for all pkgs.
568      - convert potential temperature into in-situ temperature. This changes the
569        isomip tests => update tests
570    o add a flag writePickupAtEnd (default=true) to be able to suppress
571      writing a pickup at the last timestep
572    o tools/mpack-1.6 :
573      - disable automake (not working) and autoconf (not needed).
574      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
575        also cleaner with much less compilation warnings.
576    o pkg/profiles:
577      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
578      (for "less than 32 characters name" compiler requirement)
579    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
580      conditions that have a different sampling frequency than S/T/U/V obcs
581    o pkg/diagnostics (stats-diags):
582      - fix global Min/Max in case 1 processor get only empty tiles
583    o genmake2: replace (4 times)
584         make genmake_tc_1.o >> genmake_warnings 2>&1
585      with
586         COMM="$CC $CFLAGS -c genmake_tc_1.c"
587         echo $COMM >> genmake_warnings
588         $COMM >> genmake_warnings 2>&1
589      to make genmake2 always see the value of CC as specified in the optfile.
590    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
591      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
592      - modify verification advect_cs test to test SOM-advection on CS-grid.
593    o pkg/ctrl:
594      - Rewrite of ctrl_map_ini_ecco.F,
595        introducing a generic routine (ctrl_map_ini_gen.F).
596      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
597    
598    checkpoint59n
599    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
600      number in dedicate array "hdiag":
601      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
602        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
603      - many small changes (integer format) for large number of diagnostics
604      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
605        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
606    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
607      usingSphericalGrid, this allows to define the rotated grid coordinates
608      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
609      geographical coordinates according to the inverse of the rotation defined
610      by the Euler angles, so that Coriolis parameter and online-interpolation by
611      exf works with the geographical coordinates on XC/YC/XG/YG.
612      Naturally, this feature does not work with all packages, so some
613      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
614      profiles), because there the coordinates are assumed to be regular
615      spherical grid coordinates.
616    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
617      - introduce isopycnal diffusion coefficient control.
618    o tools/adjoint_options:
619      - additional control vector components.
620    o pkg/mnc: have mnc create marginally meaning full coordinate variables
621      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
622    o pkg/mypackage:
623      - add example of read/write pickup for state-var ;
624      - add entry points to the main code for state-vars diags & write-pickup.
625    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
626      transitions for useExfYearlyFields
627      - add new subroutine that determines the file to read from for
628        use*YearlyFields = .TRUE. and .FALSE.
629      - add a verification experiment to global_with_exf that tests
630        useExfYearlyFields with USE_EXF_INTERPOLATION defined
631    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
632      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
633      subroutines (which could be generated from a template, because they are
634      almost identical), for now they are included in obcs_prescribe_read.F for
635      simplicity
636    o pkg/exf:
637      - add a little more diagnostic to exf_interp_read (in analogy to
638        mds_read_field, can be turned off with debugLevel < debugLevA=1)
639      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
640        ugly but fast by unrolling short inner loops, inserting a unroll=8
641        directive in routine lagran, and splitting a loop and making do while the
642        outermost loop (the latter requires the intoduction of index arrays)
643    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
644    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
645      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
646    o verification/seaice_obcs: updated for restart test and latest options
647    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
648      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
649      for now this is only available for the C-grid code and also within
650      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
651    
652    checkpoint59m
653    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
654      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
655    o gad_som : fix flux output (& diagnostics) to have same units as other  
656      advection scheme fluxes (was previously multiplied by deltaT).  
657    o added verification/seaice_obcs both to test seaice open boundaries
658      and to provide an example matlab scrpt for generating them
659    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
660    o pkg/salt_plume: clean up salt_plume_frac.F to
661      remove redundancy in PlumeMethod 1 and 4
662    o pkg/kpp: added saltplume diagnostics
663    o pkg/obcs and pkg/seaice:
664      - do not set uice and vice to zero when OB*icefile are unspecified
665      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
666      - moved seaice tracer obcs after call to seaice_growth
667    o pkg/salt_plume: added various options for salt plume depth
668      criterion and for vertical distribution of the salt
669    
670    checkpoint59l
671    o pkg/ptracers: new version of ptracers pickup:
672      read meta file and write only fields which are needed to restart.
673      ( same logic as main pickup file ; also using pickupStrictlyMatch )
674    o pkg/seaice:
675      - add timescale for melting due to warm mixed layer as a means of
676        setting SEAICE_availHeatFrac more conveniently
677      - add a CPP-flag/runtime parameter check for flooding algorithm
678      - reformulated availHeat in seaice_growth.F to be independent of AREA
679    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
680      unit changes
681    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
682    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
683      SX vector computer.
684    o pkg/seaice:
685      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
686        seaice forcing fields can now be read only through pkg/exf
687      - removed some unused halos
688    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
689    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
690      or U/VICE from U/VWIND before computing U/VSTRESS
691    
692    checkpoint59k
693    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
694      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
695    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
696      all experiments pass when compile with un-initialised var. checking option.
697    o added pkg/salt_plume
698    o script to test restart (for now, in MITgcm_contrib/jmc_script)
699    o pkg/seaice: new read/write pickup version.
700      read meta file and write only fields which are needed to restart.
701      ( same logic as main pickup file ; also using pickupStrictlyMatch )
702    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
703    o lab_sea.hb87: modify the domain & update output.hb87.txt :
704      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
705      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
706      process. Fixed here by closing the domain at the Northern boundary.
707    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
708    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
709      a set of consecutive levels in/from a 3-D array.
710    o pkg/ptracers:
711      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
712      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
713    
714    checkpoint59j
715    o in pkgs: dic, obcs, offline, rbcs:
716      standard way to compute coeff. for time interpolation between 2 time reccords
717      which retains full precision (& make results less dependent on compiler).
718      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
719    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
720      packages instead of reading ice cover and wind speed separately
721    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
722     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
723      to allow to compile customized code before the update)
724    o cleaning-up:
725      - fix CPP instruction syntax in pkg/obcs
726      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
727        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
728      - fix some threads issue in IO parts.
729    o pkg/dic:
730      - add tons of "_d 0" (--> much better testreports !)
731       and then update outputs of tutorial_global_oce_biogeo
732    o pkg/mom_fluxform:
733      add a special version of momentum advection intended to conserve momentum
734      next to a bathymetry step or a coastline edge. (default = off = #undef)
735    o new read/write pickup version:
736      - for now, only implemented for main (mdsio) pickup file.
737      - write out only what is needed to restart; merge pickup_nh , pickup_ph
738        and main pickup together.
739      - read meta file; read only what is needed to restart; stop if a field
740        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
741        if it make sense (even if the restart is not perfect).
742      - if no meta file, assume that pickup to read corresponds exactly to
743        a pickup that would currently be written.
744      - read pickup written in the old format (until checkpoint59i) if it
745        recognizes an old meta file (no field-list).
746      - add a meta file in exp. which starts from a pickup: 2 cases:
747        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
748         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
749        b) a meta file describing the content of the associated pickup file
750         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
751    o pkg/mdsio & pkg/rw:
752      - new routine to read a meta file ; new set of routine to read
753        Multiple-fields file (with meta file).
754    o added open boundary conditions capability for seaice
755        HSNOW, HSALT, UICE, and VICE
756    
757    checkpoint59i
758    o adjoint:
759      * fix multiDimAdvection adjoint
760        (partial recomputation problem by TAF for fVerT(:,:,kDown)
761        and comlev1 size definition (maxpass vs. max. number of tracers)
762      * verification/global_ocean.90x45x15 adjoint now tests
763        NLFS and multiDimAdvection using DST3 (=30)
764      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
765    o pkg/kpp: add "_d 0" to real constant (if missing);
766      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
767      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
768    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
769      for internal parameters related to restart process (formerly from PARAMS.h)
770      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
771    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
772      as argument. (only atm2d & obcs write_pickup have not yet been updated)
773    o pkg/monitor:
774      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
775      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
776      - account for deep Atmosphere factor and density factor (anelastic)
777    o added open boundary conditions capability for seaice HEFF and AREA
778    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
779      thermodynamics
780      - requires a little reorganization, which affects the testreport results
781        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
782        so that now the conservative form is tested
783      - add a few comments
784    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
785    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
786    o add new diagnostics to seaice: advective, diffusive fluxes (only for
787      multidim-advection, for scheme 2 they are not filled) and transports,
788      thermodynamic growth rates
789    o change units of EmPmR (inside the code, + within coupling interface)
790      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
791      Affects results @ truncation level (cg2d match) and update output of
792       experiments: lab_sea(6), global_ocean.90x40x15(10),
793      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
794      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
795      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
796      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
797    
798    checkpoint59h
799    o pkg/exf:
800      - improve vectorization by moving if-statement out of loops in
801        exf_mapfields, exf_radiation
802      - exf_bulkformulae.F: introduce 2D fields and vectorize code
803    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
804    o testreport:
805      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
806        monitor & update offline_exf_seaice exp. output.
807      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
808    o pkg/seaice:
809      - bug fix in the evp solver: boundary conditions were affected be
810        masking of zMax/zMin (changes results)
811      - minor bug fix in boundary conditions in seaice_calc_strainrates
812        (changes results for no_slip)
813      - seaice_lsr.F: make interpolation of eta dependent on boundaries
814      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
815      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
816        stress formulation and no-slip boundary conditions
817    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
818      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
819    o pkg/seaice: a first HSALT time stepping equation has been checked in
820    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
821      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
822      without requiring DO-IF statements
823    o pkg/thsice:
824      use continuous power-law function for partition of energy between lateral
825      melting/freezing and thinning/thickening ; old code using step function
826      still available with #undef THSICE_FRACEN_POWERLAW
827      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
828    o testreport: change AD testing : check against results/output_adm.txt
829      using same scripts as for forward test.
830    
831    checkpoint59g
832    o adjoint testing: in preparation for changing testreport:
833      - output format: cost and grad written on separated lines
834      - ad output results in directory "results" (instead of "results_ad")
835    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
836    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
837    o pkg/ecco: allow user defined cost function contributions
838    o testreport:
839      Allow to choose (per experiment) the list of tested output variables
840       and the main variable (used to issue a pass/FAIL ) ;
841      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
842      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
843      Also modify printing of summary:
844       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
845       b) echo the list of tested variables in the individual summary.txt of
846          each experiment.
847    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
848      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
849      (but still depend on the tile decompostion of the domain).
850    o pkg/seaice: change a discretization detail to make the B-grid code
851      "more symmetric". This change is likely to remove all "ridges/leads" that
852      where quasi-aligned with the grid in B-grid solutions. It may also be
853      the solution to the stress coupling issues with the B-grid.
854    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
855      remove .cvsignore from input dir. (since testreport no longer run here).
856    o pkg/thsice:
857     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
858     - fix reshaping of sea-ice just after advection:
859       melt all the ice only if ice-volume is too small.
860     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
861       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
862     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
863    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
864      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
865    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
866      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
867      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
868      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
869      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
870      -> update output.txt
871    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
872     this affects truncation error: -> update output.txt of exp:
873      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
874      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
875    
876    checkpoint59f
877    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
878    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
879      a bounded range (in forward mode)
880    o pkg/ecco, ctrl, autodiff and mom_common:
881     internal parameter controls, completements of implementations
882    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
883    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
884      (not seem any difference in testing results).
885    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
886       at face corners.
887    o pkg/generic_advdiff:
888     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
889      loop range indices for computing vertical advection tendency
890      and do the calculation in the interior only (no overlap) ;
891      for now, only implemented for SOM advection (to save CPU time).
892     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
893    o exch2 adjoint
894      First set of changes:
895      - add exch2 hand-written adjoint templates
896      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
897        This will require cleanup in pkg/autodiff/*.F
898        (changed routines currently kept separate in verif. code/)
899      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
900        that used to hide exch2 or cubed-sphere specific code
901        (commented via 'cph-exch2')
902    o pkg/seaice
903      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
904    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
905       output of global_ocean.cs32x15.thsice .
906    
907    checkpoint59e
908    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
909      for B-grid vector (not yet tested) and C-grid vector (<- only used
910      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
911    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
912      (#ifdef ALLOW_SALT_PLUME)
913    o gather_2d/scatter_2d: removed halo regions
914    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
915      scheme and the corresponding test case (under front_relax dir). For now,
916      only available with Skew-flux form and not yet tested in realistic set-up.
917      adjoint: store directives updated, but gradient checks deteriorated,
918      so maybe GM/Redi adjoint is now broken.
919    o seaice adjoint
920      * add AREA, HEFF, HSNOW as control variable
921        (should not change lab_sea results)
922      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
923    o pkg/seaice:
924      * added computation of saltFlux in seaice_growth;
925        For time being, sea ice salinity is assumed constant
926        contribution of snow flooding to freshening of sea ice is neglected.
927        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
928        defaults to 0.0 in order to maintain backward compatibility.
929        Typical values for SEAICE_salinity are 4 to 10 g/kg.
930      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
931      * added SEAICE_availHeatFrac, which specifies fraction of surface level
932        heat content used to melt or grow ice
933      * commented out cap of HICE: it helps keep ice thinner
934      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
935      * applied OBCS T/S mask to HEFFM sea ice mask
936    
937    checkpoint59d
938    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
939     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
940     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
941    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
942     and change default value of parameter "GM_Small_Number";
943     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
944       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
945       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
946    o pkg/ecco: cost function when applying pkg/smooth to controls
947    o pkg/ctrl: add forcingPrecond run time parameter
948    o pkg/seaice:
949     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
950     - fix bug in metric terms of u-equation in LSR solver (implicit part),
951       changes verification/lab_sea
952     - rearrange implicit part of u-equation in LSR solver to make it easier to
953       read, understand, and debug. This causes changes at the truncation level.
954     - fix (serious) bug in the boundary conditions (sign error in the implicit
955       part) of the LSR solver. Changes all LSR results.
956     - fixed problem with HSNOW initialization to avoid thick snow when AREA
957       is initilized with small values - does not change lab_sea results.
958     - added HsnowFile initialization capability
959    o pkg/smooth: addition to model/src and pkg/ctrl so allow
960     initialization of pkg/smooth and application to control vector
961    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
962    o dependencies: pkg/profiles requires pkg/cal
963    o pkg/profiles:
964     - added option ALLOW_PROFILES_GENERICGRID
965         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
966         that interpolation information (grid points and coefficients) is provided
967         within the netcdf input files.
968         -> sample matlab scripts can be found in MITgcm_contrib/gael
969         that allow you to prepare netcdf input files.
970     - also modified: cleaner include statements, cleaner error print statements,
971       cleaner stops when error, and more tests of the netcdf input files consistency.
972    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
973    o pkg/seaice:
974     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
975       requires a new routine: seaice_diagnostics_fill.F
976     - make sure that seaice does not move if not forced (pressure replacement
977       method, Hibler and Ip, 1995), changes results
978     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
979     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
980       It is turned off by default (=-1.), because it changes the results.
981     - make it possible to read AREA from a file, too.
982    
983    checkpoint59c
984    o add S/R and diagnostics for oceanic mixed-layer depth
985    o move GMRedi call after all vertical mixing schemes (including KPP)
986    o pkg/thsice:
987     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
988      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
989    o pkg/obcs:
990     - bug fix for balance code
991    o pkg/seaice:
992      - allow values of SEAICE_elasticParm > 1
993      - add new parameter SEAICE_evpTauRelax as an alternative
994        to SEAICE_elasticParm
995      - make lsr boundary conditions free slip (by default), changes result
996      - add code for no slip boundary conditions for lsr
997      - set minimum of zeta to zero (and not 4e8) (changes results)
998      - add a cap on AREA after advecting AREA if seaice_growth is not called
999    o change calculation of Visbeck K:
1000      - no longer depend on tapering scheme; instead, compute slope (limited
1001        by GM_maxSlope). this is equivalent to what was comuted before with
1002        clipping or linear tappering.
1003      - fix vertical averaging (wrong by 1/2 level)
1004      - leave the old version (but will not be maintained) within
1005        #ifdef OLD_VISBECK_CALC / #endif
1006      - update output of exp. ideal_2D_oce
1007    o change error catch in calc_r_star to improve vectorization
1008    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1009      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1010    o adjoint:
1011      Re-organized adjoint checkpointing according to Matt Mazloff
1012      (but with modifs/completions/cleanups)
1013      Storing is now bundled into large arrays to optimized I/O
1014      (and second step in cleanup of the_main_loop)
1015    
1016    checkpoint59b
1017    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1018      - export/import (between ocean & coupler) fields needed for ocean DIC.
1019    o pkg/seaice:
1020      - get rid of three more exchanges seaice_calc_viscosities (required
1021        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1022      - bug fix in seaice_ocean_stress (update of lab_sea required)
1023      - reduce loop boundaries to necessary minimum also in seaice_evp
1024      - go back to the old way of computing deltaC/Z as the adjoint likes that
1025        better
1026    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1027      passive tracer to an Age Tracer) + update output.txt
1028    o pkg/exf:
1029      - implement A-grid / C-grid selection for wind-stress input files.
1030      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1031      for now, in exf_bulk_largeyeager04.F only :
1032      - change implementation for case where windspeed + 2. components wind-stress
1033        are read-in. AND use rhoConstFresh to convert evap.
1034    o pkg/seaice:
1035      - use correct EXCH_UV for wind-forcing (on A-grid).
1036      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1037        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1038    o pkg/exf:
1039      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1040      EXF_INTERPOLATION:
1041      - merge global_with_exf/code version of exf_interp_read.F
1042        to the main code ;
1043      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1044        reading the file ; Important: This options needs to be defined to recover
1045        previous code.
1046        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1047      - no longer loose real*8 precision along the way when using exf_iprec=64.
1048    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1049      - change discretisation of evp-solver in order to avoid another exchange
1050        (changes lab_sea) and clean up a little
1051      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1052        help the adjoint (this also changes the results slightly)
1053      - add a few "_d 0" where they had been missing in seaice_evp.F
1054      - cleaning up: remove unused seaice_calc_rhs.F
1055    o pkg/exf: some cleaning-up:
1056      - change various "constants" into runtime parameters
1057      - cleaned-up Large&Yeager04 routine which should eventually
1058        replace exf_bulkformulae.F (changed names of S/R and CPP)
1059        and merged various ALLOW_ATM_WIND options
1060     only used with thsice pkg (in thsice_get_exf.F):
1061      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1062        which are used when useStabilityFct_overIce=TRUE (= the default)
1063      - change default values of ice & snow emissivity and scale downward LW
1064        by ice & snow emissivity.
1065    o pkg/thsice:
1066     fix few little problems, in thsice_calc_thickn.F:
1067      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1068      - melt only laterally if hIce < hThinIce (as the comments say)
1069      and in thsice_extend.F:
1070      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1071      - start to form ice as soon as the minimum ice-volume is reachable.
1072     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1073      and cpl_aim+ocn
1074    o pkg/kpp
1075     - move computation of surface related input fields to KPP into a new
1076       subroutine kpp_forcing_surf.F
1077     - remove wrong (within bi,bj loops) EXCH calls.
1078     - little cleaning (add argument myThid in last position, cvs header ...)
1079     - for now, fix conservation problem by exchanging KPPviscAz (may not
1080       be the best fix)
1081    o pkg/seaice
1082     - check for inconsistent evp parameter/cpp-flag combination
1083     - remove leftover errIO flat for obsolete name list error handling
1084    o OpenAD
1085     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1086    
1087    checkpoint59a
1088    o pkg/seaice: some parameter clarifications and a little bit of clean up
1089    o pkg/thsice: rename run-time parameters:
1090       himin       -> hIceMin
1091       himin0      -> hThinIce
1092       hihig       -> hThickIce
1093       i0          -> i0swFrac
1094       transCoef   -> bMeltCoef
1095       frac_energy -> fracMelting
1096      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1097       with default values (for now) that do not change the results.
1098      remove old version of thsice vars advection in pkg/seaice.
1099    o in FFIELDS.h:
1100      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1101      - make pLoad & sIceLoad always available (but still only used if
1102         ATMOSPHERIC_LOADING is #define).
1103    o pkg/kpp: replaced _KPP_RL with _RL
1104    o bug fixes for vertical diffusivity computations when both KPP and
1105        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1106        are no longer updating the vertical diffusivity array
1107        (passed as argument) but are (re-) setting those arrays.
1108    o pkg/seaice: fix bug in evp solver, while doing that
1109      - change (improve?) discretization of stress computations for both
1110        cgrid-lsr and evp solver
1111      - add a new routine to compute strain rates
1112      - the above changes lab_sea results
1113      - add no slip conditions for evp solver (off by default), lsr-version
1114        may follow
1115      - fix exchange for shear at Z-points (does not change lab_sea)
1116      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1117        (to force the user to pick a time step since there is not "safe" way
1118        of choosing it)
1119      - add principal stress diagnostics
1120      - rearrange fields for evp a little to avoid having to call a: too many
1121        exchanges and b: exchanges for stress trensor components which we do
1122        not have.
1123      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1124        of evp, complete rewrite for lsr case (latter is does not yet work
1125        in all cases)
1126    o pkg/kpp: add code to have mixing in shelf ice caverns
1127      - add myThid to all kpp routines (long overdue)
1128    
1129    checkpoint59
1130    o pkg/exf:
1131      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1132        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1133      - move exf header files from lower_case.h to UPPER_CASE.h ;
1134        add missing cvs Header & Name
1135      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1136      - add namelist param. selectStressGridPosition, exf_monFreq
1137      - retire many _CLIM routines, and remove data.exf_clim
1138        + params moved to data.exf
1139        + climsst, climsss now handled by exf_set_gen, i.e.
1140          climss?period=0 refers to constant field,
1141          climss?period=-12 to monthly forcing
1142      - split up namelists in data.exf
1143    o pkg/seaice:
1144      - remove seaice_exch and seaice_exch_uv
1145      - remove superfluous exchange of theta
1146      - add myThid to seaice_budget_ocean/ice
1147      - add new interface for atmospheric wind forcing (C-grid only)
1148        + new routine
1149        + two new field (taux, tauy for stress over ice)
1150        + removed one global field (DAIRN) for C-grid case only
1151    o pkg/thsise
1152      - 2nd set of modifs for thsice adjoint in conjunction with exf
1153    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1154    
1155    checkpoint58y_post
1156    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1157      vertical diffusivity, similar to that in MOM4; turned on using
1158      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1159      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1160    o Added capability for 3D specification of background vertical diffusion
1161      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1162      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1163      "data" file that contains the 3D vertical diffusivity coefficients.
1164    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1165      - add code within pkg thsice to advect & diffuse sea-ice fields
1166      similar to (and will replace) what has been added in  seaice_advdiff.F,
1167      but: - conserving Mass, Heat & Salt.
1168           - better when using non-linear advection scheme (not yet fully tested)
1169           - can also be used in atmospheric set-up (for now, only the diffusion).
1170    
1171    checkpoint58x_post
1172    o IO option for global-file compact format:
1173      - add options when generating topology (utils/exch2/matlab-topology-generator)
1174      - add I/O capability (pkg/mdsio).
1175      - adapt utils/matlab/rdmds.m to read this format.
1176      for now long-line format not yet supported by pkg/mdsio (& exch2).
1177    o shelfice: add a few diagnostics
1178    
1179    checkpoint58w_post
1180    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1181      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1182      (and replace horiVertRatio in NH code).
1183      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1184                         and tutorial_plume_on_slope (sensitive to truncation)
1185    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1186      directly to drive seaice model (C-grid only)
1187    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1188     - reintroduce computation of wind from stress,
1189     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1190       mass points to avoid tau = 0
1191     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1192    o rdmnc.m: make it work with "global" files created with gluemnc
1193    o rdmnc.m : some improvements in dealing with singleton dimension
1194      (tested on all testreport mnc output files).
1195    o genmake2: disable pkg/profiles if netcdf test fails.
1196    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1197    o move call to cal_readparms up to make calendar parameters/variable available
1198      to all packages
1199    
1200    checkpoint58v_post
1201    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1202      useDynP_inEos_Zc tested.
1203    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1204    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1205      and portions thereof.  See read_cs.txt for description and examples.
1206    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1207      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1208      following the great-circle arc between those 2 points.
1209    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1210      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1211    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1212     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1213     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1214     - still needs work (not working with some options ; efficiency to improve)
1215       and serious testing.
1216     - use this scheme for temperature & salinity in 2 advection test exp.:
1217       advect_xy & advect_xz, respectively.
1218    
1219    checkpoint58u_post
1220    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1221    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1222    o testreport: add option "-skipdir" to skip some test.
1223    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1224      momentum calculation.
1225    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1226    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1227      remove checkpoint.F and the_correction_step.F (no longer used);
1228      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1229    o add option (linFSConserveTr) to correct for tracer source/sink due to
1230      Linear Free surface
1231    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1232    o pkg/thsice: fix reading mnc-pickups
1233    
1234    checkpoint58t_post
1235    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1236    o pkg/mdsio:
1237     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1238       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1239       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1240     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1241     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1242       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1243     - new S/R (to replace MDSWRITEMETA), which allows to write more
1244       informations (variable names, time ...) to meta files.
1245     - modify rdmds.m to give back the meta file content.
1246    o pkg/diagnostics: change vertical interpolation to be safer, and more
1247       flexible (define p-levels to interpolate to in data.diagnostics);
1248      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1249       diagnostic pointer.
1250    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1251    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1252    o fix multi-category seaice:
1253     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1254       SEAICE_MULTICATEGORY
1255     - fix short wave heat flux
1256    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1257       and allow to use EVP solver. Change forward lab_sea: test both EVP
1258       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1259    o Initial check-in of lab_sea adjoint
1260      (very similar to natl_box_adjoint/code_seaice)
1261      * used C-grid and EVP solver
1262      * used KPP, GM/Redi
1263      * uses inAdExact=.TRUE.
1264      * gradient checks fail for both ADM and TLM
1265        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1266        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1267        issue is related to forward mismatch between g77 an ifort
1268    o pkg/seaice: overhaul of thermodynamics
1269     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1270     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1271     - move a few global fields out of SEAICE.h into seaice_growth.F and
1272       make them 2D (FICE/QNETO/ ...)
1273     - remove FO (it is the same as QNETO)
1274     - introduce a few local fields to avoid modifying external fields such
1275       as atemp, etc.
1276    
1277    checkpoint58s_post
1278    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1279      changed exf_set_gen.F so that
1280        genperiod=0 means input file is one time-constant field and
1281        genperiod=-12 means input file contains 12 monthly means
1282    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1283      this affects truncation error ; generate new output file for exp. which
1284      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1285        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1286        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1287        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1288        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1289        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1290    o start implementation of deep-atmosphere and anelastic formulation
1291    o verification: remove 2nd copy of input files and use script "prepare_run"
1292      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1293    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1294    o profiles: fix for multithreaded case
1295    
1296    o diagnostics: rename few diags:
1297      s/'PRESSURE'/'RCENTER '/g
1298      s/'TICE    '/'oceFreez'/g
1299      s/'TAUX    '/'oceTAUX '/g
1300      s/'TAUY    '/'oceTAUY '/g
1301      s/'SWFLUX  '/'oceQsw  '/g
1302      s/DIFx/DFxE/g
1303      s/DIFy/DFyE/g
1304      and add few ocean-forcing diagnostics:
1305      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1306    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1307      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1308      as actual snow thickness.  It now refers everywhere to effective snow
1309      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1310    
1311    checkpoint58r_post
1312    o modifications to pkg/seaice/growth.F, which change results of
1313      lab_sea experiment: fixes pertain to melting snow over open water, to
1314      masking EVAP under sea ice, and to using the correct AREA variable for
1315      computations of EVAP, PRECIP, HSNOW, and GHEFF
1316    o add ability to read bathy, salt, and theta using MNC (off by def)
1317    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1318      both are turned off by default and do no change any results
1319    o seaice advection with pkg/thsice: a step toward the use of non-linear
1320      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1321    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1322      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1323      in natl_box (affects results @ truncation level: update output.txt)
1324    o multi-threading and IO:
1325      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1326      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1327        (needed to work with SingleCpuIO): tested in all verif. exp.
1328    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1329      affects the results (but none of the verification test uses this scheme).
1330    o Adding some pkg/diagnostics capability to pkg/seaice
1331      (will certainly be subject to changes)
1332    o ctrl: adding new control variables:
1333      lwflux, lwdown, evap, snowprecip, apressure, runoff
1334    
1335    checkpoint58q_post
1336    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1337      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1338      high_res_cube configuration by 4% on Columbia.
1339    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1340      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1341      dynamical allocation (seems to work in multi-threaded).
1342    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1343      single CPU io) so that TAF does not have to see EESUPPORT.h
1344    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1345    
1346    checkpoint58p_post
1347    o obcs: stop if obcs is used with useCDscheme = .true.
1348    o shelfice:
1349     - fix a sign error so that no slip at shelfice interface works
1350     - remove stop for combination non-hydrostatic code and shelfice. That does
1351       not mean, that the results are correct, but at least they are numerically
1352       stable
1353    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1354    o added adjoint exch routined for all exch*3d* routines
1355      and updated flow directives
1356    
1357    checkpoint58o_post
1358    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1359      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1360    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1361      and clean-up reading/writing of pickup files.
1362    o fix local version of read/write pickup (NH part) in rotating_tank/code
1363    o simplify EXCH interface:
1364     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1365     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1366    o added the regrid package
1367    o shelfice:
1368     - add a simple boundary layer scheme to reduce noise
1369     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1370    
1371    checkpoint58n_post
1372    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1373       local variable (not in common block).
1374    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1375      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1376      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1377        to work with SingleCpuIO.
1378    o add "_d 0" to real constant of pkg/cfc subroutines ;
1379       update exp. cfc_exemple & tutorial_cfc_offline output files.
1380    o multi-threading and IO:
1381      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1382        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1383      - barrier before and after reading.
1384      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1385      - avoid using MDS_WRITELOCAL for LAND pkg output.
1386      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1387        common-block variables ; Allows multi-threading with master-thread IO.
1388    o change default MAX_NO_THREADS from 32 to 4 ;
1389      and stop cleanly when MAX_NO_THREADS is too small.
1390    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1391    
1392    checkpoint58m_post
1393    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1394       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1395    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1396       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1397       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1398    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1399        add MITgcm_tutorials (= code + all the tutorials)
1400    o ecco, option to compute cost for total ssh (mean+anom)
1401    o consistent with addition of ptracer and ssh in pkg/profiles
1402    o profiles: adding ptracer and ssh
1403    o testreport: change multi-test output-file name
1404      (from output.txt.{name} to output.{name}.txt)
1405    o profiles: now ok for mutli-tiles case
1406    o seaice: add 4 parameters for different advection schemes for area,
1407      (effective) seaice thickness, enthalphy, and snow height. Their default
1408      is the standard parameter SEAICEadvScheme
1409    o calc_gw:
1410     - add cosFacU in zonal viscous flux (harmonic.visc.).
1411     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1412       of tutorial_plume_on_slope.
1413    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1414    o calc_gw: true flux-form, account for horizontal grid spacing.
1415      update rotating_tank results, but not plume_on_slope (affected at
1416      truncation level, 11 digits).
1417    
1418    checkpoint58l_post
1419    o calc_gw:
1420     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1421     - remove side-drag for now (need to fix it); update plume_on_slope results.
1422     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1423    o commit code to make SST/SSS weights spatially variable
1424      (based on either variable in-situ or variable initial T/S weights)
1425    o pkg/ecco:
1426      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1427        now based on horizontally varying weights wthetaLev, wsaltLev
1428      * cost_averagesflags now returns year indices in addition to day, month
1429      * sflux balance is performed on annual basis
1430        (sflxumm, sfluxmm2, bal_sfluxmm)
1431      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1432        including separate counting and multipliers
1433    o pkg/rbcs
1434      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1435    
1436    checkpoint58k_post
1437    o testreport:
1438     - always build in dir. "build" (if not there, mkdir build instead of building
1439       & running in input)
1440     - run in dir run (if it exists), in build otherwise.
1441     - call prepare_run (if input/prepare_run exists)
1442     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1443    o pkg/exf modifications to interpolation and rotation routines for more
1444       reasonable treatment of North Pole singularity: for tracers North Pole
1445       value is set to northernmost zonal-mean value, for zonal velocity it is
1446       set to zero, and for meridional velocity it is set to northernmost value.
1447    o pkg/exf/exf_check_range.F
1448     - add tile index to diagnostics and move stop statement to the very
1449       end of the routine.
1450    o pkg/diagnostics: (diagnostics_main_init.F)
1451      define title of isomorphic variables according to the current config.
1452    o pkg/thsice with pkg/seaice dynamics:
1453    - fix domain of computation (interior only, required for exf) and do exchanges
1454    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1455    o towards a standard way of dealing with multi-threading in MONITOR
1456      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1457    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1458       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1459    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1460    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1461    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1462       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1463    o tracer advection:
1464     - clean-up and simplify calc_common_factors.F
1465     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1466       advection subroutine (but still not used within DST advection S/R)
1467    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1468    
1469    checkpoint58j_post
1470    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1471      from file (collects calls previously in FORWARD_STEP)
1472    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1473    o adjoint store dir. adjusted accordingly
1474    o genmake2
1475      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1476    
1477    checkpoint58i_post
1478    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1479      on wind stress (SEAICEstressFactor defaults to 1.)
1480    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1481      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1482    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1483      on CS-grid: no longer loosing mass.
1484    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1485    o pkg/ggl90: fix sloppy output and fix a bug
1486    o pkg/seaice: added SEAICEuseEVPpickup parameter
1487      - Set to false in order to start EVP solver with
1488        non-EVP pickup files when using SEAICEuseEVP
1489      - fix sign error in diffusion in seaice_calc_rhs
1490    
1491    checkpoint58h_post
1492    * Modifications for bottom topography control
1493      o replace hFacC by _hFacC at various places
1494      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1495      o add non-self-adjoint cg2d_nsa
1496      o update autodiff support routines
1497      o re-initialise hfac after ctrl_depth_ini
1498      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1499    * Adding verification for 5x5 box (4-layer) bottom topography control
1500    
1501    checkpoint58g_post
1502    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1503       used for mean seasonal cycle, mean diurnal cycle); add an example
1504       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1505    o pkg/ggl90:
1506      - add parameter (minimum surface kinetic energy)
1507      - fix bug (avoiding division by zero)
1508    o couple pkg/thsice to pkg/seaice:
1509      - modify advection in seaice to accomodate new scalar fields to be advected
1510      - only muliDimAdection scheme work with seaice/thsice
1511      - mapping of thsice-variables to seaice-variables, back and forth
1512      - does not break the verification experiments, but does not give the
1513        desired results either
1514    o pkg/seaice
1515      - make (default) second order advection a bit less confusing?
1516    
1517    checkpoint58f_post
1518    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1519      to pkg/seaice):
1520      - new routines thsice_map_exf and thsice_get_exf provide the interface
1521      - add an additional formal parameter to thsice_solve4temp
1522    o pkg/exf:
1523      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1524      - correct Stefan-Boltzmann constant
1525      - new parameter for longwave surface emittance
1526      - separate some stuff from exf_bulkformulae into new routines  
1527        exf_radiation, exf_wind
1528      - add new parameters and constants: longwave emissivity for ocean, ice
1529        and snow, evaporation parameters over ice
1530      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1531        either wind from stress or stress from wind
1532    o pkg/thSIce:
1533    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1534    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1535       and THSICE_CALC_THICKN
1536    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1537    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1538      to make debugging easier.
1539    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1540    o pkg/bulk_force:
1541      - clean-up comments and parameters ;
1542      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1543    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1544      generate new output for test-experiment: aim.5l_cs.thSI
1545    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1546      testreport accordingly
1547    
1548    checkpoint58e_post
1549    o SEAICE_CGRID adjoint done
1550    o R_STAR adjoint implemented.
1551      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1552      * need to sort out init. of h0facc, etc.
1553    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1554      to be able to use it in pure forward.
1555    
1556    checkpoint58d_post
1557    o upgrade simple test-experiment to tutorial example:
1558     step.1: duplicate the experiment and (step.2) will remove the old copy.
1559      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1560      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1561      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1562      tutorial_global_oce_biogeo    <- copy of dic_example
1563      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1564      tutorial_plume_on_slope       <- copy of plume_on_slope
1565      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1566      tutorial_global_oce_optim     <- empty for now (David ?)
1567      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1568     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1569    o correct a sign problem in cost_scat.F
1570    o obcs and ptracers: fix boundary conditions for advections schemes
1571      with larger stencil
1572    o thsice adjoint: start
1573    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1574      completeness
1575    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1576      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1577    o ptracers adjoint:
1578      * avoid extensive recomputatations
1579      * fix missing re-init. of gptr (missed by TAF)
1580    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1581      me to turn off the excessive output to STDOUT that this package produces
1582    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1583      and add those terms in Vector-Invariant formulation.
1584    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1585      if the control period (xx_hfluxperiod etc) is 0
1586    o in profiles pkg, clean routines and fix details
1587    o in ecco pkg, reading ssh data:
1588      fix problem in case the model does not start at iter0=0
1589    o fix mnc-pickup/restart for ptracers
1590    o new package prifiles:
1591      code to compute profile-based cost by Gael Forget
1592      (modifs in ecco, ctrl, autodiff)
1593    o Benign bug fix in initialization (spotted by M. Mazloff) of
1594      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1595    
1596    checkpoint58c_post
1597    o adjoint: finish NLFS adjoint and provide reference output in
1598      verification/global_ocean.90x40x15/results_ad_nlfs
1599    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1600      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1601      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1602      with SEAICE_CGRID defined.
1603    o move calendarDumps from "data" to "data.cal" and clean-up the code
1604      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1605    o add useEXF & useCAL flags (for now, set in hard-coded way)
1606    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1607      (were missing in NH mode, and wrong in quasihydrostatic mode).
1608      waiting for Chris updated version of calc_gw to add those CALLs.
1609    o fix bug in quasihydrostatic S/R ;
1610      add a test for this option: global_ocean.90x40x15.qshyd
1611    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1612      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1613    o add on/off flag useOffLine for package OFFLINE
1614    o seaice:
1615      - modify advection so that it works also on the C-grid
1616      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1617        problem in multi-tile runs with C-grid
1618      - add flags for clipping ice velocities and/or masking solver forcing
1619      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1620        C-grid solver
1621      - added a few comments to seaice_diffusion.F
1622      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1623        are now exclusive)
1624      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1625        required re-ordering the code a little:
1626       + make DAIRN global variable (defined in SEAICE)
1627       + move computation of the viscosities eta and zeta into a new separate
1628         routine (because I need to recompute them in seaice_ocean_stress.F)
1629    
1630    checkpoint58b_post
1631    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1632      update output.txt of exp. aim.5l_cs.thSI
1633    o various mnc cleanups and improvements:
1634      + shrink lookup tables by factor of ~4
1635      + better error reporting when running out of lookup space
1636      + able to handle longer path/file names (up to 500 chars)
1637    o adjoint:
1638      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1639      - TBD: "hidden" mom_vecinv recomp. in dynamics
1640    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1641     (allow to differentiate between forcing components using new integer flags:
1642      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1643     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1644    o ecco
1645      - enable trend removal from SSH anomaly obs.
1646    o adjoint
1647      - a fix for PmEpR when #undef EXACT_CONSERV
1648      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1649      - try to fix "hidden" recomp. in forward_step for NLFS
1650        (NLFS seems broken sometimes after I checked it in)
1651    o seaice:
1652     - add c-grid version of the dynamic solver:
1653       + three new routines that are the c-grid substitute lsr, dynsolver
1654         and ostres
1655       + put a few fields that were local to dynsolver into global common
1656         blocks, so that I can move the computation of stresses etc into
1657         seaice_lsr (saves coding but may break the adjoint).
1658     - replace more hardwired parameters by runtime parameters
1659     - add ice masks that mask the rhs of the implicit solvers where there
1660       is no ice (commented out in seaice_dynsolver, because i am not sure
1661       if this works properly), eventually this should replace the clipping
1662       of ice velocities in seaice_dynsolver to +/-40cm/s.
1663    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1664      include it only where its needed
1665    o move balancing of fluxes before the call of external_forcing_surf
1666    o seaice:
1667      - correct units of turning angles (now they are really in degrees)
1668      - move computation of GWATX/Y out of main routine into dynsolver
1669      - initialize GWATX/Y in seaice_init
1670    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1671      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1672    o seaice: add runtime flags for turning angles (default to zero)
1673    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1674      and trend from exf forcing and ctrl control adjustments
1675    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1676      (since checkpoint57x_post)
1677    o change the default rotation period to 86164.s = the Earth rotation
1678    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1679      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1680    o seaice advection: add code for choosing between the default (2nd order
1681      central differences) and multiDim advection schemes provided by
1682      pkg/generic_advdiff
1683    o seaice:
1684      - removed all references to SEAICE_GRID.h fields from
1685        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1686        (cubed-sphere configuration will change a little)
1687      - grid computations in seaice_init are obsolete now.
1688      - cleaned up code a little so that is easier to read (hopefully).
1689      - added new (better?) discretizations of default advection and diffusion
1690        (turn on with SEAICEuseFluxForm)
1691      - replace 1 in 3d global fields by kSurface in growth.F
1692      
1693    checkpoint58a_post
1694    o seaice:
1695      - bug fix in advect.F
1696    o shelfice:
1697      - separate shelfice load anomaly from pload (breaks with time
1698        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1699        Its default is 0., but it may be computed more cleverly from (unknown)
1700        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1701        done offline. A good approximation of the pressure load anomaly is
1702        necessary to avoid large initial adjustment processes underneath
1703        deep-reaching shelfice.
1704      - small fix in ISOMIP shelfice_thermodynamics
1705      - add more sophisticated thermodynamics of Hellmer (1989), this is
1706        now the default
1707      - give a few constants more intuitive names
1708    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1709      if bulk formulae are used in long integration (especially EmPmR). Turn
1710      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1711      if balancePrintMean, the imbalance that is substracted is printed to
1712      STDOUT.
1713    o fix bug (typo) in obcs_apply_eta.F
1714    o add a new package shelfice which enables us to model the circulation
1715      underneath shelf-ice with draughts of hundreds of meters.
1716     - works
1717     - to do: + include improved thermodynamics
1718              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1719                instead of new field kTopC
1720              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1721                instead of new field R_shelfIce and new code in ini_depth.F
1722                and ini_mask_etc.F?
1723              + adjust vertical mixing schemes?
1724    o seaice pkg:
1725     - add a cpp-flag to include a simple formula for a salinity dependent
1726       freezing point of sea water at the surface
1727     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1728       meridional stresses are now different (and hopefully correct)
1729    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1730       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1731       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1732    o pkg/diagnostics: add options and parameters for regional-statistics
1733       diagnostics ; define regions by reading a region-mask from a file
1734       (might add other options later)
1735    o pkg/bulk_force:
1736     - add option and parameters to use AIM surface-flux formulae.
1737     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1738       others forcing fields (defined in PARM05, parameter file "data") are loaded
1739       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1740     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1741     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1742     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1743       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1744     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1745    
1746    checkpoint58
1747    o add "--embed-source" option to genmake2 which, when the supporting
1748      tools can be compiled (as determined by genmake2) will turn on the
1749      embed_files package which then embeds the entire MITgcm source code
1750      (*.[fFhc] + Makefile) used for the build within the executable
1751      - requested by CNH but off by default
1752      - adds a paltry <9MB to the mitgcmuv executable in most cases
1753      - only writes the output when useEMBEDSRC in eedata is true
1754    o clean up 3-dim. relaxation codes:
1755      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1756      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1757      * Thanks to Tom Haine for testing!
1758    
1759    checkpoint57z_post
1760    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1761      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1762    o fix the pickup behavior for obcs in combination with ptracers
1763    o fix a bug in ptracers_external_fields_load
1764    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1765      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1766    o transfered surface NH pressure to eta field (if exactConserv).
1767    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1768         and update lab_sea output.txt file.
1769    o completing 3-dim. relaxation code: additional term
1770         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1771      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1772      * At compile time, in "EXF_OPTIONS.h" set
1773          #define  ALLOW_CLIMTEMP_RELAXATION
1774          #define  ALLOW_CLIMSALT_RELAXATION
1775      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1776          tauThetaClimRelax3Dim = 15552000.0,
1777          tauSaltClimRelax3Dim  = 15552000.0,
1778      * 3 cases:
1779          1) Use a constant-in-time 3-dim. field
1780          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1781          3) Real-time relax. to time-evolving prescribed field
1782    o Adding Laplacian-type smoothness constraint on
1783      initial and boundary (forcing) controls (ic, bc)
1784      * enable at compile-time via
1785        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1786      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1787      * Absolute scale somewhat unclear so far
1788      * no area weighting was included since no other cost term does so far
1789    
1790    checkpoint57y_post
1791    First step for a NLFS adjoint
1792    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1793    o new init. routines for calc_r_star, calc_surf_dr
1794    o still need to deal with ini_masks_etc
1795    o testreport seemed happy
1796    checkpoint57y_pre
1797    
1798    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1799    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1800    o add new offset feature to offline pkg (plus minor cleanup)
1801    o cfc fixes for final year of integration
1802    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1803      be in GCHEM_OPTIONS).
1804    
1805    checkpoint57x_post
1806    o fix testreport Pb in multiple test experiment.
1807    o cleanup our namelist syntax in verification:
1808      - make it more F95 standards compliant (some work still needed)
1809      - allows the vast majority of our tests to work with gfortran
1810    o Non-Hydrostatic:
1811     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1812     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1813    o Allow to apply AB on T,S rather than on AB(gT,gS):
1814     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1815     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1816       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1817     - need a "clever" read_pickup to restart from the other AB formulation
1818    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1819    o remove some unused variables (reduces number of compiler warnings)
1820    o adjoint
1821      * Disable useVariableViscosity for adjoint for time being
1822        (there are a number of extensive recomputations)
1823      * Initialize certain variables needed for adjoint
1824    
1825    checkpoint57w_post
1826    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1827                 fix the singleCpuIO RS version of MDSWRITEFIELD
1828       and add a WARNING if using globalFiles=T with multi-processors.
1829    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1830      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1831    o tracer advection scheme:
1832      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1833       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1834       was not very convenient).
1835      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1836       (further tests needed for the implicit DST & Flux-Limiter schemes).
1837    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1838      and sRef for convenience, handy, when you want to initialize
1839      ptracers in a large domain with a constant non-zero value. Also,
1840      untangle ptracers_init.F a little.
1841    
1842    checkpoint57v_post
1843    o change dome exp. to use variable viscosity in side-drag terms.
1844    o remove all the files from the cfc_offline test since they are now
1845      incorporated into tutorial_cfc_offline which has been producing
1846      identical results for a few days of testing
1847    o add new parameter: sideDragFactor to enable half-slip-side BC
1848      and change side-drag S/R to use viscosity from mom_calc_visc
1849      (can switch back by setting sideDragFactor=0.); affects results at
1850      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1851       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1852    o vorticity & strain are now computed without masking, to account for
1853      no-slip-side BC in variable viscosity calculation ; mask is applied
1854      anyway later on, before computing advection/coriolis terms.
1855    o modify exp4 to test new obcs support for reading from external files
1856      and for passive tracers
1857    o fix behavior of ptracers_monitor when monitor output is written to a
1858      netcdf-file; still not independent of monitor.F (writes in the same
1859      file).
1860    o change default value of tRef (put a uniform, meaningful value for ocean
1861      & atmos) and initialize sRef (was missing, as Martin mentioned).
1862    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1863      to be proportional to enstrophy dissipation length.  Thus,
1864       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1865      This is now consistent with Smagorinsky and with the manual.
1866    
1867    checkpoint57u_post
1868    o OBCS and PTRACERS: add open boundary support for passive tracers
1869      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1870        OB-values from file; this is not different from the way theta and salinity
1871        are treated
1872      - however, Orlanski-radiation conditions are not supported, and the model
1873        will stop if you use pTracers and Orlanski at the same time.
1874      - beefed up the rountine obcs_external_fields_load: now only those open
1875        boundary values are overwritten with values from files for which there
1876        are really files, otherwise the OB-fields remain untouched. This makes
1877        it possible to use different OBs at different ends of the domain (as
1878        with EXF)
1879    o reduce number of exch calls in shap_filt (s2).
1880    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1881      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1882    
1883    checkpoint57t_post
1884    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1885    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1886      same truncation, independent of the face number: affects affects several
1887      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1888    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1889      note that biharmonic viscosity + no-slip was not tested in any experiment.
1890    o fix bug in non-linear free-surf side-drag ; generate new output for
1891      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1892    o make mnc honor the writeBinaryPrec flag for most kinds of output
1893    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1894    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1895      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1896    o add brackets in multi-terms sum to get same truncation, independent of
1897      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1898      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1899    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1900      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1901      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1902      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1903      Suggested values of viscosity parameters found in mom_calc_visc.
1904      Many new viscosity diagnostics available.
1905    
1906    checkpoint57s_post
1907    o Add clearing-house for viscosity calculations, mom_calc_visc and
1908      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1909      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1910      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1911      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1912      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1913      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1914      ViscAhStrain and viscAhTension are now retired.
1915    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1916    o In response to JMC's bug report, genmake2 now ignores any soft-links
1917      that it finds in the *current* directory when searching for files.
1918      Soft-links found in any other source directories will still work as
1919      they did before.
1920    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1921      a C routine to unlimit the stack size
1922    o mnc-ify pkg/aim snapshot vars
1923    o mnc-ify pkg/land as requested by Daniel
1924    o various changes to mnc including:
1925      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1926      - output can now be grouped so that all files within a group
1927          change the ITER portion of their names in lock-step together
1928      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1929          and works with both EXCH1 and EXCH2 (but needs more testing)
1930      - writing works for all verification test cases w/ g77 on Linux
1931    
1932    checkpoint57r_post
1933    o make MNC variable initialization happen earlier
1934    o add diagnostics for (almost) each term of the momentum Eq.
1935    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1936    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1937    o remove MINIMAL_TAVE_OUTPUT option ;
1938      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1939    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1940      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1941    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1942    o add time-dependent SST, SSS control
1943    o cost terms in ecco/ modularized (new cost_generic.F)
1944    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1945    o new infrastructure for seaice model vs. obs misfits in seaice/
1946      * driver from the_main_loop.F is seaice_cost_driver.F
1947      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1948      * gradient check in Exp. 6a of natl_box_adjoint/
1949    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1950      (see README file)
1951    
1952    checkpoint57q_post
1953    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1954    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1955      - bug was reported by Jean-Michel and Ian Fenty
1956    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1957      update exp. cpl_aim+ocn output.
1958    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1959      Needed for high-res. runs with large global files
1960      to be able to limit tapelev size
1961    o Changed some tests for adjoint:
1962      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1963      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1964      * global_ocean.90x40x15/ back to default 3-level checkpointing
1965    o Modifications to enable scripted COMMON to MODULE conversion
1966      * verification/OpenAD/code/ has necessary scripts and description;
1967      * converts, compiles and runs successfully;
1968    
1969    checkpoint57p_post
1970    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1971    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1972      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1973    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1974    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1975      (was already the case for dissipation with mom_vecinv,
1976       and also the case for grad.PhiHyd when staggered-timeStep)
1977      This will allow to put dissipation out-off the AB time-stepping.
1978     Unfortunately, affects truncation error. Update output of exp. that "fails"
1979      (cg2d matching number) and leave the others for later: front_relax(10),
1980      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1981      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1982    
1983    checkpoint57o_post
1984    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1985      (2) its ready to be documented during the 20050801 DocFest
1986    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1987      for ideal_2D_oce and lab_sea on linux_ia32_g77
1988    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1989      in global1x1_tot/code_seaice_adj to access indices 32, 33
1990      (worth another tag)
1991    
1992    checkpoint57n_post
1993    o adding precip control xx_precip 32
1994    o adding swflux control xx_swflux 33
1995    o Replacing 10 forcing penalty cost routines by 1 generic.
1996    o Implementing partitioning in time-mean and variable adjustment
1997      for atmos. state.
1998    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1999    o in natl_box_adjoint:
2000      * updated exp 1 to 10
2001        (but does not have time-mean vs. variable split results yet)
2002    o updated global1x1/*_seaice_adj/
2003      to incorporate latest changes
2004    o enable useSingleCpuIO for mdsio vector routines
2005      (applies in particular to tapelev I/O)
2006    o removed inefficient K-loop in all active_file*control*.F
2007    
2008    checkpoint57m_post
2009    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2010      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2011    o pkg/exch2: filling of face-corner halo regions is optional
2012      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2013    
2014    checkpoint57l_post
2015     tag before updating tutorials (pre-release-2)
2016    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2017       for output and interpolation of input fields onto model grid)
2018    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2019       Affects results of exp. rotating_tank ; update output.txt.
2020    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2021          and taking the square quantity and/or using a fraction-weight field.
2022    o fix aim_diagnostics_init.F mate numbers.
2023    o add mnc output capability to diagnostics/diagstat and update
2024      our cvsignore files for the ACSII output generated
2025    
2026    checkpoint57k_post
2027    o lab_sea now uses diagnostics package and provides a suite of
2028      new EXF diagnostics output.
2029    
2030    checkpoint57j_post
2031    o exf
2032      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2033        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2034        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2035      * extended diagnostics output
2036        - now includes all EXF variables
2037        - hs, hl moved to common block
2038        - separate S/R for diagnostics, called after ctrl vector is added
2039        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2040        - EXFqnet contains true Qnet (i.e. includes qsw)
2041      * updated verif. lab_sea, global_with_exf
2042      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2043        to ensure that diagnostics sees a true EXFqnet
2044    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2045    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2046      several times with different frequencies.
2047    o mnc-ify the thsice package as requested by Daniel Enderton
2048      - the monitor--MNC output needs work
2049      - many attributes need to be added (most are currently blank)
2050    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2051      - many attributes need to be added (most are currently blank)
2052    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2053    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2054    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2055      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2056         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2057    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2058     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2059    
2060    checkpoint57i_post
2061    o Diagnostics package was changed: diagnostic allocation is now deactivated
2062      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2063    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2064      add 1rst Order upwind vertical Shear.
2065    o add a quick fix for A/B checkpointing in OFFLINE mode
2066    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2067      end-run around the C/Fortran linking horror in eesup/src/timers.F
2068    o added pkg/runclock: allows user to terminate run based on wall clock
2069    o added non-hydrostatic scaling parameter: nh_am2
2070    o pkg/my82: futile attempt to make results compiler-independent by adding
2071      some "_d 0", etc. no effect.
2072    o for mnc output, fill the 'T' coordinate var with myTime and create a
2073      separate 'iter' variable for iteration count
2074    o pkg/diagnostics:
2075      add new capability: output of Global/Regional & per-level statistics ;
2076      tested against monitor output (including land & thSIce) on various exp.
2077    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2078    
2079    checkpoint57h_done
2080      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2081      data.diagnostics, data.gchem, data.ptracers) is done.
2082    
2083    o pkg/diagnostics: prepare for Global/Regional statistics.
2084      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2085    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2086      and rename it: DIFFERENT_MULTIPLE
2087    
2088    checkpoint57h_post
2089    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2090    o pkg/diagnostics: change output frequency, now in seconds (instead
2091      of Nb of iterations). This requires to change data.diagnostics.
2092    checkpoint57h_pre
2093    
2094    o in mnc, let the user create the output dir if both mnc_outdir_date
2095      and mnc_outdir_num are false
2096    o add fflags() to pkg/diagnostics which allows one to specify, on a
2097      per-file basis, the file precision [default behavior is unchanged]
2098    o added diagnostics to pkg/kpp, including computation of mixed layer
2099      depth based on a temperature/density criterion
2100    o updated verification/natl_box to test the new pkg/kpp diagnostics
2101    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2102    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2103    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2104      not mnc -- this mistake was found by JMC and is now corrected
2105    
2106    checkpoint57g_post
2107    o add Adams-Bashforth 3rd Order time stepping:
2108      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2109      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2110    checkpoint57g_pre
2111    
2112    o make lambda[Theta,Salt]ClimRelax spatially varying
2113      (default remains spatially uniform constant based on tau)
2114    o added new control variables
2115      * init. uVel, vVel, etanN
2116      * lambda[Theta,Salt]ClimRelax
2117    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2118      (suggested by G. Forget)
2119    
2120    checkpoint57f_post
2121    o add parameter "baseTime" = model base time = time at iteration zero
2122      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2123      account for baseTime shift
2124    o move Coriolis arrays from PARAMS.h to GRID.h
2125    checkpoint57f_pre
2126    
2127    o mnc-ifying the seaice package
2128    o introduced an alternative length scale calculation for use in the limiting
2129      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2130    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2131    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2132      as well as grad(vort3).  Made it compatible with both approximate form
2133      for the cubed sphere and full form of these gradients.  Added flag
2134      useFullLeith to select between approximate and full form.  
2135    o add "d0" in getcon.F to reduce differences between compilers/platforms
2136      update output.txt of exp. fizhi-gridalt-hs
2137    o change port_rand funtion to allow to set the seed.
2138    o fix obscure MNC bug involving conversion between reals and integers
2139      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2140        new version is now more standards-compliant
2141    o adjoint-related modifications
2142      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2143      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2144      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2145    
2146    checkpoint57e_post
2147    o Adding eddy stress controls a la Ferreira et al.
2148    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2149    
2150    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2151      update output.txt of exp. fizhi-gridalt-hs
2152    o add more "Z" dimensions and associated coordinate vars to MNC
2153    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2154    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2155      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2156      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2157      months and years.  Requires pkg/cal.
2158    o diagnostics: add pickup functionality
2159      - off by default for backwards compatibility
2160      - current version only uses MDSIO -- MNC will be added
2161    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2162    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2163    
2164    checkpoint57d_post
2165    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2166    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2167      output from the diagnostics package
2168    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2169    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2170      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2171    o add coordinate variables to the MNC output from the diagnostics package
2172    o change MNC-flags default value: true when useMNC=TRUE
2173    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2174      the ability (off by default) to read the grid information using MNC
2175    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2176    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2177    o do snap-shot diagnostics at the middle of the time-interval (instead of
2178      at the end).
2179    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2180      new test for AIM with thSIce + slab-ocean
2181    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2182    o move state variable diagnostics to the beginning of the time step ;
2183      (note: still needs some work specially for snap-shot diagnostics)
2184      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2185    
2186    checkpoint57c_post
2187    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2188    o generate new output.txt files on faulks with g77 & the new -ieee option
2189    checkpoint57c_pre
2190    
2191    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2192      update output.txt of exp. global_ocean.90x40x15
2193    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2194      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2195    o add saltFlux(+File) forcing capability with periodicExternalForcing
2196    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2197    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2198    o improvements for the MNC output from DIAGNOSTICS:
2199      - correct handling of the unlimitied dimension
2200      - all dims now have associated coordinate variables
2201      - variables located at U, V, and Corner ("Z") points are now written
2202        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2203        *all* data points are output
2204    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2205    o added pkg/seaice/seaice_monitor.F
2206    o mdsio_readfield.F can now read files visible only to master MPI process.
2207    o pkg/seaice: some test code for ice-modified ocean stress
2208    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2209      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2210      spurious negative numbers for precipitation and humidity.  Will cause
2211      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2212    o pkg/ctrl/
2213      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2214        May be enabled via doPackDiag
2215      *  introduce z-scaling of
2216         + gradient (doZscalePack) and
2217         + control (doZscaleUnpack)
2218    o pkg/mdsio/
2219      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2220      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2221    
2222    checkpoint57b_post
2223    o simplify options in diagnostics_fill arguments (remove weird combinations)
2224    o fix MNC coordinate variables so that they now contain per-face index
2225      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2226      general, EXCH2 grids are only aligned to a "local" coordinate system
2227    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2228    o Implement instantaneous output within pkg diagnostics:
2229      setting a negative frequency in data.diagnostics produces
2230     "snap-shot" output (as opposed to time-average if freq > 0)
2231    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2232      NOTE: change ptracer diagnostics name: use 2 characters to work with
2233            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2234    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2235      becomes the coordinate variable for the 'T' dimension
2236    o add CF-style coordinate variables to MNC
2237      - just a first cut:  numbers are meaningless on the cubesphere and
2238        missing along the T axis but otherwise it works!
2239    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2240    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2241    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2242      this is based directly on what the model compute, so that the content of
2243      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2244    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2245    o clean up build options files for SunOS, in particular
2246      - remove -traditional from xmakedepend
2247      - change -xarch=v9 to -xarch=native for f77
2248      - restore use of make (not gmake)
2249      - add CC=gcc if using g77
2250    o changes per discussion of AM, JMC, & EH3 today:
2251      - move redundant "grid" variables out of "state" -- in preparation of
2252        creating proper CF-style coordinate variables and in recognition
2253        that any/all grid variables can be easily copied (eg. w/NCO) from
2254        the grid files into any of the other NetCDF files
2255      - *always* output grid variables with MDSIO (this will eventually be
2256        changed)
2257      - output MNC grid file if useMNC is true
2258    o every instance of _END_MASTER() has been found and replaced with
2259      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2260      preprocessors
2261    o re-arrange diagnostics pkg initialisation:
2262     - allow each package to extend the available diagnostics list
2263     - add some checking and fix small problems (multi-threaded, ...)
2264     - new S/R diagnostics_fill (replace fill_diagnostics):
2265       look through the short list of active diag. (instead of the long list)
2266       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2267    
2268    checkpoint57a_post
2269    o this set of changes restores TAMC compatibility
2270      tested for global_ocean.90x40x15 adjoint on trough
2271      (what a pain)
2272    
2273    checkpoint57a_pre
2274    o some modifs in tools/build_options for sunos
2275    o call ctrl_pack for ctrl at end for optimcycle=0
2276    
2277    checkpoint57
2278    o add horizontal bi-harmonic viscosity for vertical velocity
2279      - new parameter viscA4W (defaults to viscA4)
2280      - affects only non-hydrostatic code
2281      - to be done: no-slip lateral boundary conditions
2282    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2283    o implement Implicit Vertical advection for pTracers
2284    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2285      (implemented also for implicit vertical diffusion & advection)
2286    o OBCS: extend application of tracer open boundary conditions
2287      to a strip beyond the boundary of width Olx/Oly
2288    o add call monitor to TAF set of required calls (flow directives)
2289      and include in natl_box_adjoint
2290    o untangle a few ifdefs related to cost, ctrl, autodiff
2291      untangel a few ALLOW_ECCO_OPTIMIZATION
2292    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2293      (theta2, salt2 in ecco_cost_weights)
2294    
2295    checkpoint56c_post
2296    o OBCS as control variables
2297      - update ctrl_ad_diff.list, obcs_ad_diff.list
2298      - remove balance of obcs controls from default
2299      - fix index bug nobcs in ctrl_init
2300      - fix dummy fields filen in ctrl_pack
2301      - add dummy weights for obcs
2302    o lsopt: comment out fort.94 output
2303    o optim:
2304      - remove unnecessary header files
2305      - adjusted namelists
2306      - add xerbla.F to Makefile
2307    o exf:
2308      - multiple modifications of exf_check_range
2309      - unit change in exf_init_runoff from [m/year] to [m/s]
2310    o mdsio:
2311      - i/o-vector change debugLevel from debLevA to debLevB
2312    
2313    checkpoint56b_post
2314    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2315      is called from DO_THE_MODEL_IO
2316      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2317      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2318      - clean up PTRACERS_WRITE_TIMEAVE a little
2319    o add another verification experiment that tests both the cfc-pkg and
2320      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2321      reactive tendencies treated inline with regular timestepping
2322    o testreport previously did a lousy job of comparing small numbers, so
2323      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2324      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2325      testreport.
2326    o ptracers_monitor: bug fix for MPI
2327    
2328    checkpoint56a_post
2329    o GCHEM: finish reorganizating the package
2330      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2331        (introduces another 3D-array for each passive tracer, but only if
2332        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2333        gchemTendency is not needed because the timestep is done separately)
2334      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2335      - GCHEM is now---more or less cleanly---separate from PTRACERS
2336      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2337        so clear to me how that should be done in a general way.
2338    o CFC: improve formatting of output in CFC_ATMOS
2339    o PTRACERS:
2340      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2341        that ALL experiments with ptracers enable can be checked. This makes
2342        GCHEM_MONITOR obsolete.
2343      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2344        monitorFreq
2345      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2346    o add PTRACERS (PTR0[1-5]) to testreport output
2347    o exf_check_range:
2348      * default changed to .TRUE.
2349      * will check values for niter0 if debLevA, every timestep if debLevB
2350      * STOP in exf_check_range if 'out of range'
2351      * range chosen generous to allow for potential extema
2352      TBD: a version with stricter range
2353           permitted range would be runtime parameters
2354    o GMredi:
2355      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2356      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2357      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2358    o GCHEM:
2359      - move call to GCHEM_FORCING_SEP, so that it is now called before
2360        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2361      - introduced a useGCHEM runtime flag and applied it everywhere.
2362      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2363        this flag is now only visible within GCHEM-pkg routines.
2364      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2365        be replaced by a 3D array that is computed before thermodynamics; for
2366        this, the tracer ID iTracer had to be included into the parameter list
2367        of ptracers_forcing
2368      - set up forward_step to call gchem_forcing, that will replace
2369        gchem_forcing_int in ptracers_forcing
2370      - cleaning up
2371    o small cleaning of exch2: remove files that are also in eesupp/src
2372    
2373    checkpoint56
2374    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2375    o mnc: cleanup "full" files--fixes out-of-memory problem
2376    o ECCO-GODAE
2377      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2378      * fully merged and updated from SIO code
2379        windstress sign change affects
2380        - exf_inscal_[u/v]stress
2381        - sign of xx_tau[u/v] adjustments
2382        - signs in cost_scat
2383      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2384      * natl_box_adjoint updated and compressed
2385      * 2-level checkpoint switch added
2386        (tested in EXP. 1 of natl_box_adjoint)
2387      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2388    o SVD
2389      * first complete, non-hacked version for SVD calculations
2390      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2391        performed via direct access files admtlm_vector.it????
2392        (via ctrl_[un]pack)
2393      * optimcycle is used for ARPACK iteration counter
2394        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2395      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2396        and add linear transforms where necessary
2397      * controls are initial/final SST, SSS (can be extended; need to check
2398        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2399    o mdsio: filename info to both stderr, stdout
2400    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2401      from sign change
2402    
2403    checkpoint55j_post
2404    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2405      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2406    o add consistent build directories and .cvsignore files to verification
2407    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2408    o make all subroutines 30 or less characters in length for certain older
2409      compilers to work (a thorough search only turns up two routines in
2410      pkg/ptracers)
2411    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2412      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2413    
2414    checkpoint55i_post
2415    o change arrays for total vertical diffusivity (2.D if explicit,
2416      3.D if implicit) ; each ptracer uses its own background value.
2417    o added mnc/NetCDF output capability to ocn_compon_interf
2418      - added bits to verification/cpl_aim+ocn so that it can run on
2419        ITRDA and other clusters without the mpirun "-wd" option
2420    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2421      configuration
2422    o give MNC the ability to create additional files rather than
2423      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2424      - the default is just less than 2GB which is a practical limit
2425        on many systems
2426    o Compute the non-local term using either KPP vertical diffusivity (=default)
2427       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2428    
2429    checkpoint55h_post
2430    o add verification test "vermix"
2431    o remove all the *_ioinc flags and replace with the single global
2432      outputTypesInclusive flag
2433    o allow to set a vertical profile of vertical diffusivity for T & S
2434    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2435    o useMNC moved from data.mnc to data.pkg
2436    
2437    checkpoint55g_post
2438    o Renaming carbon AD experiments to comply with testreport conventions
2439    o Updating adjoint of Held-Suarez hs94.1x64x5
2440    o Fixing directives for non-ECCO forward_step, after ECCO directives
2441      have been fixed to avoid recomp. of do_oceanic_phys
2442      Works well for global_ocean.90x40x15,
2443      but recomp. issue remains for carbon
2444    o Updating adjoint output for natl_box_adjoint after
2445      pkg/ecco has been modified (see taga c55d_post)
2446    
2447    checkpoint55f_post
2448    o rename to timeave_init_fixed
2449    
2450    checkpoint55e_post
2451    o some delicate re-shuffle of store directives to avoid one
2452      extra call of do_oceanic_physics
2453      affects ecco_the_main_loop.F, do_oceanic_physics.F
2454      checkpoint_lev1_directives.h
2455    o NB: this may break global_ocean adjoint temporarily,
2456      but it is clear how to fix it. Will do later, need this now.
2457    
2458    checkpoint55d_post
2459    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2460    o ecco_cost_weights is modified to 1x1 runs
2461    o modifs to allow observations to be read in as
2462      single file or yearly files
2463    o enable to read exf forcing fields as either
2464      single file or yearly files (flag useExfYearlyFields)
2465    checkpoint55d_pre
2466    
2467    o switch between 2-level and 3-level checkpointing
2468    o add ability of MNC to write local and "partial" (eg. 2D slices where
2469      the full 3D field is never actually stored) arrays to NetCDF files
2470      with the correct (that is, the complete multi-dimensional) set of
2471      array indicies
2472      - used in mom_vecinv() to write the diagFreq output
2473      - tested (demonstrated) in verification/aim.5l_cs
2474    o further mnc-ification
2475      - add verification/lab_sea to the list with mnc setups
2476      - fix undefined mnc v-names in cd_code
2477      - add kpp to mnc output (both snapshot and timeave)
2478    o non-hydrostatic code
2479      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2480        in calc_gw.F
2481      - defaults to viscAh
2482      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2483        friction or Leith) in non-hydrostatic mode, as long as there is
2484        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2485    o pkg/cost
2486      extend simple cost functions to treat time mean quantities
2487      (T,U,V) via cost_accumulate_state from cost_tile
2488    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2489        be 2 times larger than the minimum size the advection scheme requires.
2490        now get a perfect conservation of salt in advect_cs test-exp (updated)
2491    o GGL90 (Gaspar's TKE mixed layer)
2492      - add horizontal diffusion of TKE, requires exchanges in
2493        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2494        default. In OPA there is no horizontal diffusion of TKE but the
2495        mixing coefficients are computed from a horizontal average of TKE of
2496        6 points or so. I think that diffusion has a little more physical
2497        justification.
2498      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2499        was in vain)
2500      - mask tke-variable in ggl90_init
2501    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2502    o fix biharmonic diffusion on CS-grid.
2503    o more obcs stuff
2504      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2505        for reading boundary values. This routine is called from
2506        obcs_prescribe_read
2507      - updated obcs_check
2508      - changed sponge layer relaxation parameter units for days to seconds
2509      - turned off sponge layer by default
2510      - changed argument list of OBCS_CALC to myTime+deltaTclock
2511      - fixed about 35 bugs in obcs_external_fields_load
2512    
2513    checkpoint55c_post
2514    o obcs stuff
2515      - new runtime flags useOBCSprescribe, useOBCSbalance
2516      - re-arranged obcs_calc
2517      - moved exf_getobcs to obcs_prescibe_read
2518        obcs_prescibe_read is called after ORLANSKI stuff
2519        and independent of it (executable can contain all).
2520      - updated obcs_check
2521      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2522        These may be necessary only if tangential velocities are
2523        prescribed at OB, not sure, needs testing.
2524    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2525      which simplifies the calls and passes the ifc check-bounds test
2526    
2527    checkpoint55b_post
2528    o add a 2D scalar, Z location, exchange_2 routine.
2529    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2530      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2531      affects advect_cs results (for the wrong reason): update output.txt
2532    o use a more standard discretization for biharmonic viscosity ;
2533     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2534      affects results of dome set-up: update output.txt
2535    o fix gad_advection.F (CubedSphere part), back to version 1.23
2536    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2537    
2538    checkpoint55a_post
2539    o merged code to
2540      * prescribe/read time-dependent open boundaries
2541        (works in conjunction with exf, cal)
2542      * sponge layer code for open boundaries
2543      * each boundary N/S/E/W now has its own CPP option
2544        (healthy for the adjoint)
2545    
2546    checkpoint55
2547    o up-to-date adjoint of previous breaks
2548      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2549      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2550      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2551      - carbon: * remove tr1-related adjoint verification
2552                * add ptracer as control variable
2553    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2554      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2555    
2556    checkpoint54f_post
2557    o in verification/carbin/ remove experiment related to
2558      ALLOW_PASSIVE_TRACER (array tr1 etc)
2559      code_ad/ input_ad/ results_ad
2560    
2561    o add two new packages
2562      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2563        + subject to optimization (memory)
2564      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2565        + subject to reordering (many GOTOs in the original code)
2566        + so far opps is called for every (i,j) point, and then operates in
2567          the vertical; one may want to reorder the scheme in order operate in
2568          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2569          fields)
2570    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2571      - all verification tests compile and run with linux_ia32_g77
2572      - defaults are compatible with current input files--nothing
2573        should change if you were not previously using MNC
2574      - MNC output has been added in numerous places (eg. timeave)
2575        but there are still a few writes not yet do-able with MNC
2576        (this is in progress)
2577      - flags now allow for either/or/both use of MDSIO and MNC and
2578        documentation will soon follow
2579      - numerous small formatting cleanups for ProTeX
2580    o add version info (via BUILD_INFO.h) to MNC and stdout
2581    
2582    checkpoint54e_post
2583    o add two new packages
2584      - pp81 (Packanowski and Philander, 1981), Richardson number and
2585        stratification dependent mixing
2586      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2587      - these scheme operate in a similar manner as KPP (without ghat, of
2588        course), however there is only one diffusivity that is used for both
2589        temperature and salinity (and passive tracers)
2590    o add offline package
2591    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2592      provided by Stephanie Dutkiewicz
2593    o genmake2: add ability to search for C compilers and cleanup test output
2594      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2595    
2596    checkpoint54d_post
2597    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2598    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2599      leading to additional shift by 5 days each year of integration
2600       (i.e. leading to considerable offset over the years)
2601    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2602    o start with no AB and no initial filtering (staggerTimeStep):
2603      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2604    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2605      (external loading & cpl import/export stay in forward_step.F)
2606    o update coupling interface to work with new staggerTimeStep
2607    o change MDSIO ptracers_pickup.
2608    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2609    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2610    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2611    
2612    checkpoint54c_post
2613    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2614      this affects (truncation error) output.txt of test-exp:
2615       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2616    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2617    o change Qnet to always be the net heat flux, (+upward).
2618      affects (truncation error) output of natl_box exp.: updated
2619    o define the max number of passive tracers in PTRACERS_SIZE.h
2620    o start to test mnc routinely in exp0
2621    o add sea-ice loading (sIceLoad) as a new forcing field.
2622    
2623    checkpoint54b_post
2624    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2625       impressive on Altix and Opteron systems)
2626    o diagnostics can now write NetCDF files through the mnc package
2627    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2628    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2629    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2630      affects (truncation error) output of lab_sea & natl_box exp.: updated
2631    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2632    
2633    checkpoint54a_post
2634    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2635    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2636    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2637    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2638      + internal_wave (shift in writing cg2d_ini_res)
2639    checkpoint54a_pre
2640    
2641    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2642      - modified verification/lab_sea and natl_box_adjoint accordingly
2643    
2644    checkpoint54
2645    checkpoint53g_post
2646    o prepare splitting of thermodynamics: store convect.counter in common block
2647    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2648      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2649    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2650    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2651    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2652    o restore adjointability
2653    
2654    checkpoint53f_post
2655    o modifications that affect AIM experiment results (update output.txt):
2656      - no advection of S at top interface Nr (pkg/generic_advdiff)
2657      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2658    o AIM pkg:
2659      - include stability function into surf.Flux derivative relative to Tsurf
2660      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2661    
2662    checkpoint53e_post
2663    o merged cylindrical coord configuration
2664    o added rotating_tank experiment
2665    checkpoint53e_pre
2666    
2667    checkpoint53d_post
2668    o faulks upgraded: re-generate output.txt that have changed:
2669       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2670    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2671    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2672    o added Sadourny discretization of Coriolis
2673      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2674      - re-enabled use of omega3 (useAbsVorticity)
2675    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2676      vector-invariant equations
2677      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2678    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2679      hopefully without new bugs
2680      - still to do: biharmonic friction for non-hydrostatic w
2681    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2682    o regenerated output for global_ocean_ebm (using -ieee)
2683    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2684      of mom_common/
2685      - simple re-arrangement of instructions within computing loop
2686    checkpoint53d_pre
2687    
2688    checkpoint53c_post
2689    o new version of coupler for AIM+thSIce and Ocean models
2690     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2691     - land: change Evaporation of snow
2692     - aim with thSIce: fix bug in snow-precip.
2693    o changes to calc_gw.F
2694     - bug fix for w^2 term near the bottom boundary
2695     - (hopefully) improve the lateral slip boundary condtions for use with
2696        partial/looped cells
2697      - because the bug fix changes two verification experiments anyway (exp5
2698        and plume on slope), change the lateral boundary condition from half slip
2699        to the value of no_slip_sides
2700    o ebm package wasnt quite up to the parallel task. Fixed that.
2701    o Adjoint of EBM package + verification
2702      * TLM OK
2703      * ADM not sufficient accuracy yet (needs further testing)
2704    
2705    checkpoint53b_post
2706    o Commiting new energy balance model to repository
2707      * package is pkg/ebm
2708      * verif. is verification/global_ocean_ebm
2709      * references are in ebm_driver.F
2710    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2711    C        Global thermohaline circulation. Part I:
2712    C        Sensitivity to atmospheric moisture transport.
2713    C        J. Climate 12(1), 71-82
2714    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2715    C        Global thermohaline circulation. Part II:
2716    C        Sensitivity with interactive transport.
2717    C        J. Climate 12(1), 83-91
2718    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2719    C        Destabilization of the thermohaline circulation
2720    C        by atmospheric eddy transports.
2721    C        J. Climate 7(12), 1870-1882
2722    o Will need long integration testing.
2723    checkpoint53b_pre
2724    
2725    o created pkg/mom_common in preparation for variable viscosity code
2726    o renamed and split ini_mnc_io
2727    o pkg/land: only liquid water can diffuse or run-off
2728    o AIM using land: soil wetness availability account for snow
2729    o added printMapIncludesZeros to EEPARMS namelist
2730    
2731    checkpoint53a_post
2732    o restore TAMC compatiility for exf_constants.h
2733      (no usage of _d in .h)
2734    o Additional storing in KPP in an attempt to fix
2735      TAMC problem with adjoint of KPP code.
2736      (no success...)
2737      Identical code works fine with TAF.
2738    o Fixed verification/natl_box_adjoint experiments.
2739      Initial conditions for Experiments 4 and 5 are now
2740      set to "SEAICE_initialHEFF=0", which is more reasonable,
2741      and hence gives results closer to that of Experiment 2.
2742      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2743    
2744    checkpoint53
2745    o stable checkpoint with up to date adjoint
2746      TLM tests only run for 1st grdchk at the moment. Its unclear if
2747      this is a code problem or a problem with resetting code for g_
2748      variables that is being autogenerated wrong.
2749      Otherwise:
2750       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2751       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2752         are both still in chaos following their security messes.
2753    
2754    checkpoint52n_post
2755    o various build (mostly genmake2) changes including:
2756      - ability to build/run more easily within Cygwin and MacOS X
2757      - more complicated Makefiles with a stronger dependence on Gnu Make
2758    o pkg/seaice modifications
2759      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2760        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2761        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2762      - changed proxy for geostrophic velocity and updated
2763        verification/lab_sea/results/* accordingly
2764      - removed ADI dynamic solver from pkg/seaice
2765      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2766        they caused a segmentation fault under certain circumstances
2767      - removed unused field WATR
2768    o bug fix in exf-package:
2769      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2770         now reflect that.
2771    o small fixes in the cal-package:
2772      - set reference date to first of January for the 'model'-calendar
2773      - failing of cal_CheckDate in cal_FullDate now actually results in a
2774        warning
2775    o small modifications in exf-package to increase flexibility:
2776      - change climtempfreeze from a constant to a runtime parameter that
2777        is specified in data.exf_clim (default = -1.9)
2778      - introduce runtime parameter windstressmax (default = 2.0) that is
2779        specified in data.exf
2780    o fix in pkg/thsice:
2781      - update Evap (Tsf changes) to be consistent with Latent heat flux
2782      - maintain snow precipitation unchanged (even if Tsf >=0).
2783     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2784    
2785    checkpoint52m_post
2786    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2787      this does not change any of the results, because myIter=0 in swfrac always
2788      lead to jwtype=2 (the default anyway), but the call makes little sense
2789      as a default
2790    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2791    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2792      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2793    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2794    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2795    o extending useSingleCpuIO option to work with new exch2 I/O format
2796      - old-style, missing-tile I/O is still accessible by defining CPP
2797        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2798    o monitor package can write to NetCDF files and/or STDOUT
2799    o fix re-definition bug in MNC_GRID_INIT_ALL()
2800    o doc/api_reference added
2801      - a framework for building an API Reference Manual using all
2802        the "protex" comments embedded in the code
2803      - see pkg/generic_advdiff, pkg/mnc for examples
2804    o MNC:
2805      - make myThid the last argument for all subroutines
2806      - new default for the grid files: NO halos
2807      - add useMNC and other run-time flags
2808      - separate per-file-group handling of the unlimited dimension
2809      - early initialization of MNC w/ flags read at the eeboot stage
2810        and lookup tables set in initialize_fixed
2811      - write all MNC output to a freshly-created directory
2812    o thermodynamics sea-ice (thsice) is now tested with testreport.
2813    o test exp. advect_cs: use the standard cs32 grid ; update output.
2814    o Added functionality to grdchk:
2815      pick global i,j,k position (or nearest wet) where to perform check.
2816    
2817    checkpoint52l_post
2818    o new land formulation:
2819      a) use ground enthalpy as prognostic variable to ensure exact
2820         energy conservation.
2821      b) account for water temperature and for latent heat of freezing
2822         in all processes (rain, run-off, ground storage)
2823      c) compute surface and ground temperature implicitly.
2824    o aim_v23 modification for new land model:
2825      a) Treat separately land / ocean / sea-ice surface fluxes
2826         to allow implicit computation of land & sea-ice surface temp.
2827      b) add snow precipitation.
2828    checkpoint52l_pre
2829    
2830    o fix problem (when 1 tile is empty) in min/max monitor.
2831    o fix bug in timeAve (u,vZetatave in common block)
2832    o no restoring terms under ice for pkg/seaice
2833    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2834    o bug fix for pkg/seaice pickups
2835    o change MNC call locations and add coordinate attributes
2836    o mask vorticity at the corner ; affects global_ocean.cs output
2837    o fix ini_curvilinear_grid ; test CS experiments with mpi
2838    o aim.5l_cs: modify sea-ice fraction input file ; update output
2839    o exf: Adding simple range check routine for exf fields after read
2840    
2841    checkpoint52k_post
2842    o removed top-level directory "diags"
2843      - we migrated these functions to pkg/timeave a long time ago
2844    o fixed bug introduced in pkg/monitor
2845    o accuracy ctrlprec = 32 insuffient for gradient checks using
2846      averaged fields (I/O via cost_averages)
2847      -> use ctrl.h in active_file*.F to control I/O precision.
2848    o paramter list of CALL ADTHE_MAIN_LOOP
2849    o added initial do_the_model_io to ecco
2850    o set all ...Freq to zero after cost_final
2851      taveFreq, dumpFreq, pChkptFreq
2852    o MAIN and ECCO differentiability restored
2853    
2854    checkpoint52j_post
2855    o fix nchklev in tamc.h for global_ocean...
2856    o Bringing flow and store directives up-to-date
2857    o Really weird thing!
2858      call do_the_model_io from the_main_loop with parameters
2859      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2860      TAF places a faulty re-call of initialise_varia
2861      after cost_final call which should not be there!
2862    checkpoint52j_pre
2863    
2864    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2865      error messages
2866    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2867    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2868      debug output
2869    o modfied mdsio_writefield.F to handle non-global files under exch2
2870    o update AIM Cubed-Sphere exp (aim.5l_cs):
2871      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2872    o update AIM Equatorial Channel exp:
2873      use standard aim_v23 pkg and change the SST fields to be more realistic.
2874    o globalFile now works with exch2
2875    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2876      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2877    o limit timeave output for hi-res integrations
2878    
2879    checkpoint52i_post
2880    o removed CPP_EEOPTIONS.h from verification/*/code
2881    o updated the tiling for global_ocean_pressure
2882    checkpoint52i_pre
2883    
2884    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2885      the old pkg/aim).
2886    
2887    checkpoint52h_pre
2888    o shortened offending lines in exch2_send_rx?.template
2889    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2890    o genmake2: add build & execute test for NetCDF code
2891    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2892      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2893    o added useSingleCPUIO flag to monitor.F and mon_out.F
2894    o added temporary hack for sea-ice dynamics on the cube:
2895      metric terms are ignored and it is assumed that
2896      there is no sea-ice on cube faces 1, 2, 4, and 5.
2897    
2898    checkpoint52f_post
2899    o added exch2 cube routines to pkg/exch2
2900    o modified hs94.cs-32x32x5 to use it
2901    o added new grid files to hs94.cs-32x32x5
2902    checkpoint52f_pre
2903    
2904    checkpoint52e_post
2905    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2906      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2907    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2908      to work with implicit vertical advection and AB ;
2909    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2910    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2911     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2912    checkpoint52e_pre
2913    
2914    o fix bug in impldiff when Nr=1 or Nr=2.
2915    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2916    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2917    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2918      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2919    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2920    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2921    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2922    
2923    checkpoint52d_post
2924    o re-tiled many expts to allow comparison in multi-processor mode
2925      - updated output accordingly
2926      - changed hs94.128x64x5 to use intial T from file rather than use the
2927        random number generator
2928    o add infrastructure in model routines for fizhi and gridalt packages
2929    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2930    o changes to permit hi-res, cubed-sphere, configuration
2931      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2932      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2933      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2934        of surface winds for the cube
2935      (A verification experiment, based on global_ocean.cs32x15, but with
2936       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2937       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2938       complete with example surface forcing files and matlab scripts to look
2939       at the output and compare it with that of global_ocean.cs32x15.)
2940    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2941       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2942       to conform to the common rule.
2943    o check-in the first version of the coupler + interfaces for multi-components
2944       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2945       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2946       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2947       - ocean and atmos. share the same horizontal grid (no interpolation).
2948       - exchanges between component and coupler is done in forward_step
2949    o new verification experiment, cpl_aim+ocn:
2950       coupled ocean - AIM atmosphere on cs32 grid.
2951    
2952    checkpoint52d_pre
2953    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2954    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2955    
2956    checkpoint52c_post
2957    o Fixing OPTIONS files for use of exf:
2958      - ALLOW_ECCO not needed
2959      - ECCO_CPPOPTIONS.h should not be included from
2960        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2961        as has been the case in the past
2962      - All cal/exf related options are currently set in
2963        single header file. Should remain so until we
2964        agree on a consistent new policy.
2965    o Removed all CPP options for cal package.
2966      cal has no more CPP options.
2967    o modified STOREs in GAD_ADVECTION
2968    o corrected key comp. for passkey
2969    
2970    checkpoint52b_post
2971    o new version: "thsice" of thermodynamic sea-ice pkg:
2972     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2973     - modify fluxes but do not change theta directly;
2974     - light cleaning of bulk_force pkg (still needed with thsice).
2975     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2976       + output_thsice.txt to test thsice & bulk_force pkgs.
2977    o put back grid & coriolis monitor output.
2978    checkpoint52b_pre
2979    
2980    o call "do_the_model_io" at the beginning (=> dump initial state)
2981    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2982    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2983      (need info on NUMBER_OF_PTRACERS)
2984    o missing PTRACERS headers in some routines
2985    o default tamc.h in pkg/autodiff supposed to crash
2986      to ensure proper customization
2987    
2988    checkpoint52a_post
2989    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2990      - moved surfaceTendencyTice from pkg/seaice to main code
2991      - subroutine FREEZE_SURFACE now limits only surface temperature
2992        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2993        => new output.txt for global_ocean.cs32x15 & global_with_exf
2994      - keep the old version of FREEZE for backward compatibility;
2995        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2996      - corresponding modifs for TAF directives
2997    o added surface flux output variables to TIMEAVE_STATVARS
2998    o time-averaged output for pkg/ptracers
2999    o fix problem with ECCO-related divided adjoint
3000      snapshot file was missing some ad-variables,
3001      but no warning issued by TAF
3002    
3003    checkpoint52a_pre
3004    o some bug fixes for #undef REAL4_IS_SLOW
3005    
3006    checkpoint52 = ecco_c52_e35
3007    o after testing adjoints of checkpoint51u_post
3008    
3009    checkpoint51u_post
3010    o this is the post-merge tag of the ecco-branch
3011      (needs another clean checkout and re-testing)
3012    o various natl_box_adjoint configs and results
3013      but no input fields
3014    o obcs adjoint not yet merged!
3015    o adding ECCO global 1x1 and 2x2 degree configs
3016    o updated/extended some store directives for seaice
3017    o pkg/ecco now containes ecco-specific part of cost function
3018    o top level routines the_main_loop, forward_step
3019      supersede those in model/src/
3020      previous input data.cost now in data.ecco
3021      (new namelist ecco_cost_nml)
3022    o in ctrl/ cleaned some cross-dependencies and updated CPP options
3023    
3024    checkpoint51t_post
3025    o this is the pre-merge tag of the ecco-branch
3026    
3027    checkpoint51s_post
3028    o cleanup: removed various obsolete #define-s
3029    o pkg/grdchk
3030      - renamed 'ph-grd 3' to 'grad-res'
3031      - merged from ecco-branch
3032        (remaining bug fixes for obcs gradient checks)
3033      - additional high-precision output for testreport
3034        (grep for 'precision_grdchk_result')
3035    
3036    checkpoint51r_post
3037    o cleaned up or removed CPP_OPTIONS.h files
3038    o updated results for some of the tests to reflect the new
3039      optfiles (-ieee: -O0 instead of -O3)
3040    
3041    checkpoint51q_post
3042    o cd_code:
3043      - moved cd_scheme.F -> cd_code_scheme.F
3044      - separate read_checkpoint from cd_code_ini_vars.F
3045      - separated cd_code part from write_checkpoint
3046      - updated AD_SOURCE, generated .flow
3047      - added CD_CODE_VARS.h to the_main_loop
3048      - Moving cd_code specific store dir.s to pkg/cd_code
3049    o ctrl package totally restructured
3050      - pack/unpack now optional and decoupled from
3051        xx_/adxx_ I/O
3052      - ctrl_pack/unpack cleaned
3053        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
3054      - confined inclusion of AD_CONFIG.h to where necessary.
3055    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
3056    
3057    checkpoint51p_post
3058    o create initial cd_code package
3059      - WARNING: the initialization of fields within packages
3060        is broken because INI_FIELDS (where READ_CHECKPOINT is
3061        called) is called *before* PACKAGES_INIT_VARIABLES.
3062        This seems to be backwards since
3063        1) its important to initially zero the entire field including
3064           the "halo" region
3065        2) zeroing needs to be done *before* reading pickup info
3066           and the pickup call might or might not happen in any
3067           particular run
3068      - this needs an overhaul for R2
3069    o cleanup verification/*/code/GMREDI_OPTIONS.h
3070    o cleanup testreport
3071    
3072    checkpoint51o_post
3073    o bringing AD-related verif's up to date with genmake2
3074      - carbon/
3075      - global_ocean.90x40x15/
3076      - hs.94.1x64x5/
3077      - (front_relax/ )
3078    o (more) consistent directory structure for AD-related verif.'s
3079    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
3080    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
3081    o bug fix in find_alpha.F for MDJWF:
3082      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
3083        change rho -> rho-rhoConst
3084      - replace call find_rho to find_rhonum
3085    o initialisation of rFlx extended to full array (required by TAF)
3086      and shifted to thermodynamics
3087    o removed PTRACERS.h in ptracers routine
3088    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3089    o Correcting initialisations for fVerU, fVerV.
3090    o helping TAF to recognize dependency on kUp for
3091      fVerU, fVerV
3092    o Replacing delZ by delR in pkg/ctrl/
3093    checkpoint51o_pre
3094    
3095    o undid all of cp51 pending some cleanups and discussion
3096    o added the [#include "AD_CONFIG.h"] statement to all files that need
3097       it for adjoint/tl #defines
3098     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3099     o removed tools/genmake since it no longer works
3100    
3101    checkpoint51n_post
3102    o modifications to make FREEZE flux visible to pkg/kpp
3103      - moved surfaceTendencyTice from pkg/seaice to main code
3104      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3105      - subroutine FREEZE now limits only surface temperature
3106        (this means new output.txt for global_ocean.90x40x15,
3107         global_ocean.cs32x15, and global_with_exf)
3108    o added surface flux output variables to TIMEAVE_STATVARS
3109    
3110    checkpoint51n_pre
3111    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3112    o added [#include "AD_CONFIG.h"] to all files that use the following
3113      defines:
3114      - ALLOW_ADJOINT_RUN
3115      - ALLOW_TANGENTLINEAR_RUN
3116      - ALLOW_ECCO_OPTIMIZATION
3117    
3118    checkpoint51m_post
3119    o incorporating changes to get TAMC/TAF working in genmake2
3120      - added new TAMC/TAF targets to the Makefile
3121      - various cleanups related to package handling
3122      - these changes should have no impact on the forward model
3123    
3124    checkpoint51l_post
3125    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3126     - faster algorithm for cal_addtime.F
3127     - higher precision arithmetic, where needed
3128     - pkg/exf *startdate variables changed from calendar date to
3129       model integration time
3130    
3131    checkpoint51l_pre
3132    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3133    o enable to apply restoring on S & T only in a latitude band.
3134    o update output (external_forcing_surf modif. change truncation errors)
3135       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3136    
3137    checkpoint51k_post
3138    o change default to: useNHMTerms=.FALSE.
3139     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3140       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3141     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3142        exp1, ideal_2D_oce
3143     - change data file of oceanic exp (leave the results unchanged for now)
3144       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3145    o set gravitySign automatically according to the vertical coordinate used
3146      (and change sign: back to "logical" value: +1 when R increases downward)
3147    o added an include barrier to the default CPP_OPTIONS.h and
3148      removed the #include "PACKAGES_CONFIG.h" from it
3149    o fix a bug in mom_fluxform (from chk51j_post)
3150    
3151    checkpoint51j_post
3152    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3153    o adjusted some flow directives (dynamics, thermodynamics)
3154    o added cubed-sphere case to test cost function
3155    o heckpoint_lev?_directives.h now include
3156      pkg-specific directives, whenever those are enabled.
3157    o Moving pkg-specific flow directives to corresponding pkg
3158      Moving pkg-specific differentiation list to corresponding pkg
3159      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3160      ---> conventions are
3161           - pkg_ad.flow
3162           - pkg_ad_diff.list
3163           - pkg_ad_check_lev?_dir.h
3164    
3165    checkpoint51i_post
3166    o merge of the branch-genmake2
3167      - knowingly breaks the older genmake
3168      - automatic generation of all ALLOW_${PKG_NAME} defines
3169      - new testreport supersedes older testscript
3170    o large number of package inclusion and header cleanups
3171    checkpoint51i_pre
3172    
3173    o new output for adjoin of global ocean vector invariant
3174    o fix for checkpoint of thermodynamic seaice and bulk_force
3175    o Steph gchem various cleanups
3176    
3177    checkpoint 51h_pre
3178    o fixed some single quotes
3179    o modify gchem pkg to be more versatile
3180    o modifications to clean up dic pkg
3181    o add pkg/cfc
3182    
3183    checkpoint51g_post
3184    o provide links for ARPACK and ADM*TLM
3185    o start removing verification/vero/
3186    o update AD-related stuff
3187      (in particular some IF-statements in model/src/ routines)
3188    o adding to verification/global_ocean.90x40x15/ adjoint of
3189      vector invariant setup
3190    
3191    checkpoint51f_post
3192    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3193    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3194      of tracer Green's fucntions for ocean inversion project.
3195    
3196    checkpoint51f_pre
3197    o Added on-the-fly spatial interpolation capability
3198        "USE_EXF_INTERPOLATION" to pkg/exf.
3199      - This is a temporary Cartesian-grid hack until
3200        the super-duper ESMF coupler becomes available.
3201      - See verification/global_with_exf/README for usage example.
3202      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3203        flags and modified pkg/seaice accordingly.
3204    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3205        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3206        non-local transport term.
3207    
3208    checkpoint51e_post
3209    o pkg/mom_vecinv:
3210      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3211      - add time-ave diagnostic of vorticity advection.
3212    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3213    o atmospheric geopotential: - include water vapor effect;
3214                                - use p^kappa in p* scaling.
3215    o land pkg: read initial state from files.
3216    o AIM : add stratospheric drag in the upper level
3217    
3218    checkpoint51d_post
3219    o change function ILNBLNK (=> last non-blank char.) to return zero
3220      (instead of the string length) when the string. char is empty
3221    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3222    o modif's to restore TAMC compatibility
3223      - avoid "_d" constructs in PARAMETER declarations
3224      - avoid interrupting lines by comment lines
3225    o Use cluster local disks for purely local I/O
3226      vs. globally visible disks needed for ctrl stuff
3227      (merged from ecco-branch)
3228      - new active_file_loc... and mdsio_..._loc routines
3229      - affected packages: autodiff, ctrl, grdchk, mdsio
3230    
3231    checkpoint51c_post
3232    o introducing integer flag debugLevel
3233      - debLevZero: suppress all output
3234      - debLevA: standard
3235      - debLevB: equivalent to current debugMode=.TRUE.
3236    o introducing pathname variable mdsioLocalDir for mdsio
3237      that can be specified at runtime
3238      (relevant for cluster I/O to local disk)
3239    `
3240    >>>checkpoint51b_post
3241    adjoint of ptracers
3242    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
3243    o extended state in checkpoint_lev?, etc.
3244    o alternative ctrl/cost with tr1 or ptracer
3245    o new comlev1_bibj_ptracers
3246    o new ptracers.flow
3247    o made ptracers_forcing same as external_forcing_s
3248    o added verification for adjoint with ptracers
3249      - adm. grdchk fail so far
3250      - tlm. grdchk OK
3251      - checked tapelev/comlev recomputations: OK
3252    <<<checkpoint51b_pre
3253    
3254    checkpoint51a_post
3255    o added code for biogeochemistry package
3256      - new pkgs: dic, gchem
3257      - new subroutine in ptracers
3258    o modify code for biogeo packages
3259      - in model/src and pkg/ptracers
3260    
3261    checkpoint51
3262    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
3263      - autodiff, ctrl, exf, grdchk, seaice
3264      kept separate packages
3265      - cost, ecco, obcs
3266    o updating verification/internal_wave, verification/lab_sea
3267      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
3268    
3269    checkpoint50i_post
3270    o Preparing next differentiable checkpoint and sync
3271      of MAIN vs. ecco-branch
3272      - 1st step: this one is differentiable
3273      - 2nd step: next(! not this) checkpoint will have updated packages
3274                  from ecco-branch)
3275    
3276    checkpoint50h_post
3277    o new package "land": provide surface BC for AIM.
3278    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
3279    o AIM: use true log-P extrapolation for near surface temp (= as in
3280        F.Molteni paper) ; update aim.5l_cs output.
3281    o New variable in PARM03 for more flexible pickups
3282    o somewhat cleaned package initialisation sequence for
3283      ctrl/ cost/ ecco/ in packages_... routines
3284    
3285    checkpoint50g_post
3286    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
3287      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
3288      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
3289        made the default because of faster convergence than ADI
3290    
3291    checkpoint50f_post
3292    o exf totally restructured
3293      - replaced all exf_set_ routines by one generic exf_set_gen.F
3294        and made sure it's still differentiable
3295      - split exf_getffields.F into new exf_bulkformulae.F
3296      - exf_inscal_/exf_outscal_ suffixes consistent with field names
3297      - updated adjoint/makefile and relevant verif. accordingly
3298    
3299    checkpoint50f_pre
3300     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
3301          + change Evap over land. (update aim.5l_cs output)
3302     o added missing .cvsignores and made uniform across expts
3303     o changed configuration of tidal_basin_2d expt
3304     o added pkg/debug functions for tracing code in fatal crashes
3305     o tidied pkg/monitor to use MONITOR_OPTIONS.h
3306     o new fn in pkg/monitor to stop model if solution grows too big
3307     o removed lots of single quotes from comments
3308    
3309    checkpoint50e_post
3310    o make KPP work with PTRACERS
3311     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
3312       nearly a copy of kpp_transport_s
3313     - there is no analogue to SurfaceTendencyS, so I have to use
3314       gPtr(of the surface layer) instead
3315    o add a new platform SunFire+mpi (SunFire 15000) to genmake
3316    checkpoint50e_pre
3317    
3318    checkpoint50d_post
3319    o change kpp output from multiple-record state files to single-record state
3320      files analogous to write_state.F
3321    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
3322      analogous to the cg2d-related output.
3323    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
3324      so that writing to internal file fn (with length 512) fails.
3325    checkpoint50d_pre
3326    
3327    checkpoint50c_post
3328    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
3329    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
3330    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
3331    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
3332    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
3333    
3334    checkpoint50c_pre
3335    Merging from release1_p13:
3336    o bug fix for pkg/seaice dynamic solver
3337    o Added SEAICE_initialHEFF to pkg/seaice
3338    
3339    checkpoint50b_post
3340    o store u*,v* in gU,V instead of in guNm1,gvNm1
3341    o in order to put the momForcing out of the Adams-Bashforth:
3342      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3343      to timestep.F
3344    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3345    o re-generate output for highly sensitive test-exp:
3346       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3347    
3348    checkpoint50b_pre
3349    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3350    o corrected CPP option mismatch in exf_Bulk... functions for case
3351      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3352    
3353    checkpoint50a_post
3354    o Bug fix for merging between c50 and KPP.
3355      ikey was passed from thermodynamics to kpp_calc via
3356      common block rather than being recomputed in kpp_calc,
3357      in contradiction with new key itdkey.
3358      New key ikppkey created, and tamc.h headers updated.
3359    
3360    checkpoint50
3361    - 2nd step of merge with ecco-branch:
3362      merge changes in ecco-branch back into main trunk
3363    - bug fix in find_alpha
3364    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3365    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3366    - merged some sliced AD support routines
3367    
3368    checkpoint49
3369    merged from ecco-branch:
3370    o exf:
3371      - Enable initialisation of forcing fields to constant
3372        (runtime) values.
3373      - in exf_getffields.F
3374        Reduce i-/j-loop to interior domain, discarding overlaps.
3375        That also fixes wrong TAF-key computations for key_1, key_2
3376        with bulf formulae.
3377      - exf_init.F modify #ifdef for exf_init_evap
3378      - exf_getffieldrec.F, ctrl_getrec.F
3379        The following INT-usages are not safe:
3380          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3381          fldcount = int(fldsecs/fldperiod) + 1
3382        and were modified.
3383    o autodiff: checkpoint_lev...
3384      - updated storing for bulk formulae (some arrays were missing)
3385      - added state for seaice package
3386      - synchronized with main branch
3387    o DIVA:
3388      Modif.s in
3389      - the_main_loop.F
3390      - the_model_main.F
3391      and added cost_final_restore.F cost_final_store.F
3392      o With these changes, it is possible to fully separate
3393        the first forward run to compute the cost function (mdthe_main_loop)
3394        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3395        into separate model executions.
3396        This enables better tuning of DIVA to given queue sizes.
3397      o Loss of cost function value in consecutive DIVA runs is
3398        fixed by storing to 'costfinal' file.
3399      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3400        beginning/end of adjoint integration is accounted for.
3401      The current changes apply to TAF-1.4.26.
3402      TAF has one remaining bug, requiring one manual change
3403      (see MITgcm manual).
3404    o cal: synchronized between MAIN and ecco-branch
3405    
3406    checkpoint48i_post
3407    o Changes to restore differentiability of code w.r.t. previous tag
3408      (mostly adding new routines to make list and replacing
3409      pressure by totPhiHyd).
3410    o Updated and merged grdchk package
3411      - has both ADM and TLM checks
3412      - works for single- and multi-proc.
3413      - output cleaned
3414      - worked successfully for parallel DIVA
3415    o genmake:
3416      - Adding -platform=SP4
3417      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3418    o Modif. for DIVA:
3419      ctrl_unpack should not be called in intermediate DIVA interval.
3420      (similar thing would apply for active files such as
3421      tbar, sbar, psbar, which should not be reinitialised;
3422      only relevant for ecco-branch)
3423    
3424    checkpoint48h_post
3425    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3426    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3427    o Added SEAICE_initialHEFF to pkg/seaice
3428    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3429    
3430    checkpoint48g_post
3431    --- EOS:
3432    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3433      store total Potential in totPhyHyd for diagnostics & EOS.
3434    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3435    --- Pressure/geopotential gradient:
3436    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3437    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3438      ( changes results of global_ocean_pressure )
3439    o NLFS + z-coord.: add eta*Rho' contribution.
3440    o accurate phiHyd when using interface-W at the middle between 2 centers
3441     ( changes results of ideal_2D_oce )
3442    o includes r* 2nd term in potential gradient.
3443    
3444    checkpoint48f_post
3445    Merging from release1_p12:
3446    o Modifications for using pkg/exf with pkg/seaice
3447      - improved description of the various forcing configurations
3448      - added basic radiation bulk formulae to pkg/exf
3449      - units/sign fix for evap computation in exf_getffields.F
3450      - updated verification/global_with_exf/results/output.txt
3451    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3452      (SBO) core products, including oceanic mass, center-of-mass,
3453      angular, and bottom pressure (see pkg/sbo/README.sbo).
3454    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3455      to avoid negative values in shallow regions.
3456      - updated verification/natl_box/results/output.txt
3457      - updated verification/lab_sea/results/output.txt
3458    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3459    o Added useSingleCpuIO option (see PARAMS.h).
3460    o Updated useSingleCpuIO option in mdsio_writefield.F to
3461      work with multi-field files, e.g., for single-file pickup.
3462    o pkg/seaice:
3463      - bug fix in growth.F: QNET for no shortwave case
3464      - added HeffFile for specifying initial sea-ice thickness
3465      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3466    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3467      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3468    o pkg/seaice:
3469      - adjoint-friendly modifications
3470      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3471    
3472    checkpoint48e_post
3473    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3474    o dynamics: change definition of computational domain & adapt mom_fluxform
3475      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3476    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3477        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3478        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3479        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3480        inverted_barometer solid-body.cs-32x32x1
3481      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3482    
3483    checkpoint48d_post
3484    o in preparation for r*:
3485     a) use pre-computed gradient of hydrostatic potential:
3486        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3487     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3488        => affects results of glob_oce_pressure (different truncation error)  
3489      update output.txt of ideal_2D_oce & global_ocean_pressure
3490    
3491    checkpoint48d_pre
3492    o in preparation for r*:
3493      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3494      pass the 2 comp. of the grad. as arguments to momentum S/R.
3495      but for the moment, only used if it does not change the results.
3496    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3497    
3498    checkpoint48c_post
3499    Modifications in treatment of initial flux forcing controls
3500    to avoid extra storing of flux fields.
3501    
3502    checkpoint48c_pre
3503    o Added tidal_basin_2d experiment (currently 1D!)
3504    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3505    
3506    checkpoint48b_post
3507    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3508     (modification to pressure gradient not yet implemented)
3509    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3510      (for U & V) that are used for vertical advection of momentum.
3511    
3512    checkpoint48a_post
3513    o In preparation for r*, use temp. array to compute vertical transport
3514       in flux-form momentum pkg. => change results of few test-exp.
3515      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3516                        lab_sea, natl_box & plume_on_slope
3517    
3518    checkpoint48
3519    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3520    
3521    checkpoint47j_post
3522    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3523    o moved adexch from forward_step to addummy_in_stepping
3524    o added exch in ctrl_map_...
3525    o aveFreq.=0. at end of cost_final to avoid overwrite in
3526      reverse checkpointing loop
3527    o Yet more changes in gmredi:
3528      * adgmredi_calc_tensor
3529        avoiding all recomputation of gmredi_slope_limit
3530      * adgmredi_x/y/rtransport
3531        added flag for excessive storing to avoid recomp. of
3532        u/v/rtans, dTdx/y/z
3533        -> this is not really necessary and very memory-consuming
3534      * adgmredi_slope_psi:
3535        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3536      * gmredi_slope_limit
3537        re-activated full calculation of taperfct for case 'ac02'
3538    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3539    
3540    checkpoint47i_post
3541    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3542    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3543      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3544    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3545    o gmredi: fix few bugs.
3546    
3547    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3548    This will be a good checkpoint to plug into the ecco-branch.
3549    o few modif.'s to get latest version adjointed
3550      (mainly kick out code in ini_linear_phisurf)
3551    o modif's to run adjoint with exactConserv
3552    o case GM_BOLUS_ADVEC should be cleaned
3553      S/R gmredi_slope_psi should be cleaned
3554    o verification/carbon now has exactConserv=.TRUE.
3555    
3556    checkpoint47g_post
3557    o time-average AIM output: becomes independent from statvars time-average
3558      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3559    o After TAF bug fix:
3560      Tested adjoint of gmredi package.
3561      Tests were done with checkpoint47 rather than with latest
3562      checkpoint47f_post since the latter is broken for the adjoint
3563      verification/carbon/ contains both ADM and TLM gradient checks.
3564    Here they are, before they get changed/lost/stolen.
3565    Mostly modif.'s to fix numerical sensitivities.
3566    Gradient checks OK for
3567    - GM_taper_scheme:
3568      * clipping
3569      * ac02
3570      * linear
3571      * glw91
3572      * dm95
3573      * ldd97
3574    - GMREDI_OPTIONS:
3575      * GM_VISBECK_VARIABLE_K
3576      * GM_NON_UNITY_DIAGONAL
3577      * GM_EXTRA_DIAGONAL
3578      * GM_BOLUS_ADVEC
3579    in conjunction with data.gmredi parameters to be checked in
3580    in a few minutes under verification/carbon/code/
3581    
3582    checkpoint47f_post
3583    Merging from release1_p10:
3584    o modifications for using pkg/exf with pkg/seaice
3585      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3586        and SEAICE_EXTERNAL_FLUXES
3587      - pkg/exf CPP options EXF_READ_EVAP and
3588        EXF_NO_BULK_COMPUTATIONS
3589      - usage examples are Experiments 8 and 9 in
3590        verification/lab_sea/README
3591      - verification/lab_sea default experiment now uses
3592        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3593    
3594    checkpoint47e_post
3595    o created a tag prior to creating a branch
3596    
3597    checkpoint47d_post
3598    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3599      at the bottom boundary had an erroneous half slip boundary condition
3600    o added bottom drag and no slip boundary condition capabilities to
3601      oceanic pressure coordinates code
3602    o added new verification experiment global_ocean_pressure, this experiment is
3603      also described in the tutorial section of the manual
3604    checkpoint47d_pre
3605    
3606    checkpoint47c_post
3607    o Added a verification experiment for a global cubed-sphere ocean run
3608      -  verification/global_ocean.cubed32x32x30
3609      -  uses pkg/therm_seaice and pkg/bulk_forcing
3610    
3611    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3612    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3613      when using P-coordinate; only implemented for atmospheric config.
3614    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3615      NOTES: requires option NONLIN_FRSURF to be "#define".
3616    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3617    
3618    checkpoint47b_post
3619    Merging from release1_p9:
3620    o pkg/seaice
3621      - removed GOTO's and added taf directives
3622      - double precision constants to reduce the g77 (Linux)
3623        to F77 (SGI) differences reported in release1_p8
3624    o tools/genmake
3625      - added SGI options
3626    o verification/testscript
3627      - updated to that of checkpoint47a_post
3628    o verification/global_ocean.90x40x15/input/eedata
3629      - modified for SGI f77 compatibility
3630    o verification/lab_sea
3631      - added description of sea-ice model
3632      - added missing matlab routines
3633      - added test of thermodynamics parallelization
3634    
3635    checkpoint47a_post
3636    o new pkg: aim_v23
3637     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3638       for now, keep the same surface forcing as before.
3639     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3640     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3641     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3642    o add diagnostic of surface correction term in monitor output
3643    
3644    o bulk_force and therm_seaice
3645    - Two packages:  bulk_force (Bulk forcing)
3646      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3647    - Earlier integration from Stephaine Dutkiewicz
3648      and Patrick Heimbach.
3649    - Two ifdef statements for compile time,
3650       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3651    
3652    checkpoint47
3653    differentiable version of checkpoint46n_post
3654    o bug fix in quasihydrostaticterms
3655    o * "clean" adjoint code (in terms of extensive recomputations)
3656        can now be obtained for all GMREDI options (i.e. for
3657        - GM_VISBECK_VARIABLE_K
3658        - GM_NON_UNITY_DIAGONAL
3659        - GM_EXTRA_DIAGONAL
3660        - GM_BOLUS_ADVEC )
3661      * However, wrong gradient check problem remains unsolved.
3662      * New CPP options have been introduced for different
3663        tapering schemes
3664    o external_fields_load now part of differentiation list
3665    o pressure needs multiple storing;
3666      would be nice to have store_pressure at beginning or
3667      end of forward_step, e.g. by having phiHyd global (5-dim.)
3668      (NB: pressure is needed for certain cases in find_rho,
3669      which is also invoked through convective_adjustment).
3670    o recomputations in find_rho for cases
3671     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3672    o #define ATMOSPHERIC_LOADING should be differentiable
3673    o ini_forcing shifted to begining of initialise_varia
3674    o Incorporating QNVS line search routines into MITgcm
3675      (this is separate code, and therefore not under pkg)
3676      lsopt/, optim/
3677    o Updated verification/carbon/
3678      - #define GM_VISBECK_VARIABLE_K
3679      - GM_taper_scheme    = 'ldd97'    
3680    
3681    checkpoint46n_post
3682    Merging from release1_p8:
3683    o verification/natl_box:
3684      updating new external_fields_load routine
3685    o New package: pkg/seaice
3686      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3687      The sea-ice code is based on Hibler (1979-1980).
3688      Two sea-ice dynamic solvers, ADI and LSR, are included.
3689      In addition to computing prognostic sea-ice variables and diagnosing
3690      the forcing/external data fields that drive the ocean model,
3691      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3692      The implied surface heat flux is then stored in variable
3693      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3694      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3695      non-local transport term.  Because this call precedes model
3696      thermodynamics, temperature under sea-ice may not be "exactly" at
3697      the freezing point by the time theta is dumped or time-averaged.
3698      N.B.: fairly large differences in accuracy occur across
3699            different platforms/compilers; comparison between
3700            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3701            generated output gives:
3702       T           S           U           V
3703      C D M    c        m  s        m  s        m  s        m  s
3704      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3705      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3706      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3707    
3708      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3709    o GAD:
3710      - generated new common blocks to account for call of
3711        same gad routines with differing traceridentities
3712        (needed to modify tracerIdentity indices in GAD.h)
3713      - generated separate common blocks for case useCubedSphereExchange
3714        (Department of Futurology)
3715      - parameter lists to gmredi_?transport: added tracerIdentity
3716      - added new key indices to tamc.h
3717    o external_fields_load:
3718      - added this routine to TAF list
3719      - needed to make some common blocks global and additional storing
3720        along the same lines as exf package (checkpoint_lev?_directives.h)
3721    o exf:
3722      updated external forcing package
3723      - bug fixes carried over from ecco-branch
3724        (missing OBCS_OPTIONS.h in two routines)
3725      - enable easy to use "no forcing".
3726      - added exf I/O for atmospheric loading
3727      - added exf I/O for runoff data
3728      - transfered scaling between exf <-> MITgcm to exf namelist
3729    o Adding new verification experiment global_with_exf.
3730      This verification experiment is almost identical to the
3731      global_ocean.90x40x15 experiment, except that it uses
3732      the exf (and cal) package instead of the
3733      external_fields_load routine (cf README file).
3734    
3735    checkpoint46m_post
3736    o modified testscript to return -- when there are no lines of "%MON" output
3737    o added new flag "quasiHydrostatic" for QH mode
3738      and new routine quasihydrostaticterms()
3739    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3740      New routine: mom_u_coriolis_nh()
3741    o fixed sign of non-hydrostatic metric terms in u and v equations.
3742      Depend on correct sign of gravitySign.
3743    o added work.pc* to .cvsignore in aim directories using ifc
3744    o introduced flag for controllin non-hydrostatic metric terms
3745    o removed gravitySign from PARM04
3746    o switched to g77/ifc from pgf77 in aim experiments
3747    
3748    checkpoint46l_post
3749    o made convective adjustment work with pressure coordinates:
3750     - changed the direction of k-loop in convective_adjustment.F for the
3751       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3752     - adjusted the reference pressure k-index in convective_adjustment.F
3753     - adjusted the convection condition in convect.F (in analogy to
3754       calc_ivdc.F)
3755     - convective_adjustment no longer computes anything on the halos
3756     - removed the warnings about negative salinity from find_rho.F and
3757       find_alpha.F; instead the new routine look_for_neg_salinity, called
3758       at the beginning of find_rho, find_alpha, and find_beta, does a
3759       check of the entire slice, if CPP-option
3760       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3761    checkpoint46l_pre
3762    
3763    checkpoint46k_post
3764    o fixed the verification/global_ocean.90x40x15 experiment:
3765     - new bathymetry (the world according to A., JMC, and M.)
3766     - new initial fields and forcing fields (*.bin files)
3767     - new POLY3.COEFFS (for the next release one should switch to a full
3768       equation of state: JMD95P or MDJWF)
3769     - fixed several errors and redundancies in the data file
3770     - experiment uses looped cells
3771     - added matlab directory with diagnostic scripts for plotting of output
3772    
3773    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3774     - read AIM physics parameters from a file (data.aimphys)
3775     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3776    
3777    checkpoint46j_post
3778    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3779    o move wVel computation at the end of the time step, in S/R integr_continuity
3780    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3781    o update timeave pkg for wVel diagnostic.
3782    checkpoint46j_pre
3783    
3784    checkpoint46i_post
3785    o Clean up AIM package (and keep the results unchanged):
3786      include CPP_OPTION and use IMPLICT NONE in all routines ;
3787      declare all the variables _RL ; use _d 0 for all numerical constants.
3788      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3789    
3790    checkpoint46h_post
3791    o cleaned up the use of rhoNil and rhoConst.
3792      - rhoNil should only appear in the LINEAR equation of state, everywhere
3793        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3794        and the dynamical equations are all divided by rhoConst
3795    o introduced new parameter rhoConstFresh, a reference density of fresh
3796      water, to remove the fresh water flux's dependence on rhoNil. The default
3797      value is 999.8 kg/m^3
3798    o cleanup up external_forcing.F and external_forcing_surf.F
3799      - can now be used by both OCEANIC and OCEANICP
3800    checkpoint46h_pre
3801    
3802     Added code to convert surface volume flux (fresh water) into
3803     a mass flux when using P coordinates in the ocean (OCEANICP).
3804     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3805    
3806    checkpoint46g_post
3807    o Include a new diagnostic variable phiHydLow for the ocean model
3808      - in z-coordinates, it is the bottom pressure anomaly
3809      - in p-coordinates, it is the sea surface elevation
3810      - in both cases, these variable have global drift, reflecting the mass
3811        drift in z-coordinates and the volume drift in p-coordinates
3812      - included time averaging for phiHydLow, be aware of the drift!
3813    o depth-dependent computation of Bo_surf for pressure coordinates
3814      in the ocean (buoyancyRelation='OCEANICP')
3815      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3816        Theta, Salinity, and Pressure in the parameter list. This routine is
3817        presently contained in find_rho.F. This routine does not give the
3818        correct density for 'POLY3', which would be a z-dependent reference
3819        density.
3820    o cleaned up find_rho
3821      - removed obsolete 'eqn' from the parameter list.
3822    o added two new verification experiments: gop and goz
3823      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3824    checkpoint46g_pre
3825    
3826    checkpoint46f_post
3827    o Enable tangent linear (forward mode) gradient checks:
3828      - extended active file handling to g_... files
3829      - added TANGENT_SIMULATION to theSimulationMode
3830      - extended grdchk package accordingly
3831    o added tangent linear setup in verification/carbon/code_ftl
3832    o added adjoint setup in verification/front_relax/code_ad
3833    
3834    checkpoint46e_post
3835    o Added new equation of state -> MDJWF
3836      - EOS of McDougall et al., 2002, JAOT, submitted
3837      - caveat: the equation of state is only valid for a smaller (more
3838        realistic?) range of values than JMD95P/Z and UNESCO
3839      - added masks to the calculation of pressure in store_pressure
3840      - added more check values for density in check_eos (ini_eos.F), some of
3841        the old check values are out of the range of the MDJWF-eos, so don't
3842        expect perfect matches for those
3843    checkpoint46e_pre
3844    
3845    checkpoint46d_post
3846    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3847      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3848      case of pressure coordinates. eosType='JMD95Z' in
3849      combination with buoyancyRelation='OCEANICP' now causes an error.
3850    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3851      in find_alpha/beta.
3852    checkpoint46d_pre
3853    
3854    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3855      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3856    
3857    checkpoint46c_post
3858    o Changes necessary for ocean in p-coordinates
3859     -  Added new buoyancy relation = 'OCEANICP'
3860     -  Added new parameters = gravitySign (this used to be contained inside
3861        the factor dRdZ which I added when we first switched to R coordinates).
3862     X GM/Redi is not compatible (yet)
3863     X bottom drag and no-slip need to be debugged.
3864    checkpoint46c_pre
3865    
3866    checkpoint46b_post
3867    o Added new equation of state -> JMD95Z and JMD95P
3868      - EOS of Jackett and McDougall, 1995, JAOT
3869      - moved all EOS parameters into EOS.h
3870      - new routines ini_eos.F, store_pressure.F
3871    o Added UNESCO EOS, but not recommended because it requires
3872      in-situ temperature (see JMD95)
3873    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3874      unesco.f to be used with POLY3
3875    checkpoint46b_pre
3876    
3877    checkpoint46a_post
3878    o Added (atmospheric) pressure loading
3879      - new field in FFIELDS.h, etc...
3880      - new cpp flag ATMOSPHERIC_LOADING
3881    o Changed hFacC to _hFacC in calc_phi_hyd.F
3882    o Added SHORTWAVE_HEATING to some files for consistency
3883    checkpoint46a_pre
3884    
3885    checkpoint46
3886    further merges from release1_p5
3887    o new ctrl package
3888      - adopted from ECCO environment to enable optimization
3889      - added Eliassen Palm fluxes to controls
3890    o added Eliassen Palm flux controls to gradient check package
3891    o cost package
3892      - Compatible with new ctrl package
3893      - added Eliassen Palm cost hooks
3894      - modif's of existing cost functions
3895    o Adjoint-related bug fixes in kpp:
3896      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3897      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3898    o autodiff package
3899      - flow directives:
3900        + new for S/R do_the_model_io
3901        + enhanced for S/R checkpoint
3902        + new gmredi.flow
3903      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3904        disable adcommon.h/g_common.h by default.
3905      - fixed problem for adjoint of global_max
3906    o modified verification/carbon/
3907    o New setup for adjoint of global_ocean
3908    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3909    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3910    o incorporated hooks for sponge layer code (external_forcing.F)
3911    
3912    checkpoint45d_post
3913    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3914    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3915      (affects plume_on_slope "cg2d" output)
3916    o add new parameter deltaTfreesurf for free-surface time stepping
3917    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3918    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3919    o change phiMin in exp1 (to agree with documentation)
3920    o add new flags:
3921     - T,S forcing inside/outside Adams-Bashforth
3922     - turn off temp,salt advection and/or forcing
3923     - for each tracer, define internal flag for multiDimAdvection & A-B
3924    o monitor: change definition of KE to check conservation of Energy
3925    
3926    checkpoint45c_post
3927    o Removed f90 comments ("!")
3928    o Modified initialisations to enable exf package for MITgcm
3929      (without invoking ECCO_PACKAGE).
3930    o modifications to gradient check package (Martin Losch)
3931      - enable centered differences
3932      - modified format of standard output
3933    
3934    checkpoint45b_post
3935    o cleaned exchange calls in cg2d
3936    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3937    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3938      to configure barotropic setup (Martin Losch)
3939    o moved some initialisations within bi,bj loop in dynamics
3940      (TAF flow dependency)
3941    o in initialise_varia, moved call packages_init_variables
3942      before convective_adjustment_init
3943      (corresponding adjustment of TAF tape initialisation).
3944    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3945    
3946    checkpoint45a_post
3947    o compute Rho over the whole domain (extend iMin,jMin indices)
3948    o specific exchange for X-slice domain (case Ny=1)
3949    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3950    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3951    
3952    checkpoint44h_post = checkpoint45
3953    o Fix to restore differentiability:
3954      place at which packages_init_variables is called in
3955      initialise_varia is crucial for reverse control flow.
3956    o modifications in GMRedi to enable stable adjoint
3957      (corresponding modif's in thermodynamics, dynamics)
3958    o added missing hook for sponge layer code in external_forcing
3959    o modified test cost functions
3960    o storing in gad_advection (plus removal of write(0,*)!
3961    o missing headers TR1.h added in convective_adjustment routines
3962    o errorMessageUnit set non-equal zero in eeboot
3963      (conflict on some platforms, e.g. IBM SP3)
3964    o modified carbon verif.
3965    
3966    checkpoint44h_pre
3967    o vertical grid option: allow to put the Interface at the middle between
3968      2 cell-centers ; replace delZ in pkg/kpp by drF.
3969    o GM Advective form: Tracers are advected using the residual transport (=
3970      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3971    
3972    checkpoint44g_post
3973    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3974      results) ; ifdef missing in thermodynamics.F
3975    
3976    checkpoint44f_pre,checkpoint44f_post
3977    o added PTRACERS package
3978      This allows an arbitrary number of passive tracers to be integrated
3979      forward simultaneously with the dynamicaly model.
3980      + Implemented so far:
3981        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3982        - I/O and checkpointing
3983        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3984      + Not implemented so far:
3985        - KPP
3986        - OBCS
3987      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3988        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3989        line in data.pkg.
3990      + This package is disabled by default since it increases storage.
3991    
3992    
3993    o testscript: added -cleanup option
3994    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3995                 b) enable to filter 2D fields.
3996    
3997    checkpoint44e_pre,post
3998    o re-wrote convective adjustment to use pre-calculated weights
3999      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
4000      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
4001      Original calls to convect() still in place.
4002    
4003    chkpt44d_pre,post
4004    o added missing EXCLUDE_MONITOR flags
4005    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
4006      (incompatible typ in MIN/MAX expressions caused problems
4007      on IBM SP3)
4008    o in genmake added variable MAKEDEPEND
4009      plus resetting for case SunOS
4010    o added timer_stats.c routine for IBM SP3
4011    o removed variables in dynamics
4012    !!! I forgot to create tag chkpt44d_pre !!!
4013    !!! But chkpt44d_pre = chkpt44c_post    !!!
4014    
4015    o real fresh water flux implemented with non-linear free-surface.
4016    
4017    chkpt44c_pre,post
4018    o few fix (mask in shap_s2, EmPmR in external_field_load,
4019      USE_NATURAL_BCS in solve_for_P);
4020    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
4021    
4022    checkpoint44b_pre/_post
4023    o merge of relevant stuff from the ecco-branch:
4024      - genmake: removed $S64 overwrite for case SunOS
4025      - pkg/exf: update and corrections for field swapping and obcs
4026      - pkg/ecco: parameter lists for the_model_main, the_main_loop
4027                  harmonized between ECCO and MITgcm
4028      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
4029                      updated checkpointing_lev... lists for obcs
4030      - model/src: minor changes in forward_step, plot_field
4031                   added directive for divided adjoint in the_main_loop
4032      - pkg/mdsio: added mdsio_gl_slice
4033    
4034    o check parameters & config (chkpt44a_pre,post)
4035    o OBC and NonLin_FrSurf.
4036    
4037    checkpoint44
4038    o fix bug in mom_vi_del2uv
4039    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
4040    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
4041    o update AIM experiments (NCEP input files)
4042    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
4043    o added some stuff for AD
4044    
4045    checkpoint43
4046    o added two new advection tests
4047    o added global 4x4 degree ocean test
4048    o added test of H&S94 with free surface on cube
4049    o some final mods for gradient check, adjoint,...
4050    
4051    checkpoint42
4052      Fixed AD-related problems:
4053    o Store directives up-to-date with re-arranged Adams-Bashforth
4054      (mainly thermodynamics.F)
4055    o New store directives for multi-dim. advection schemes
4056      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
4057      * new common block and key passkey
4058      (mainly gad_advection.F)
4059    o Modified store directives for split of dynamics/thermodynamics
4060      for the case ALLOW_KPP
4061    o Cleaned argument list for timestep_tracer.F
4062    
4063    checkpoint41
4064    o re-formatted/added comments in prologues of key subroutines
4065      to work with protex
4066    
4067    checkpoint40
4068    o moved calc_gs, calc_gt and calc_tr1 back to model/src
4069    o added FLT (floats) package from Arne along with demo. experiment
4070    o re-arranged Adams-Bashforth scheme for tracers to allow easier
4071      implementation of forward-in-time forcing terms
4072    o more mods for non-linear free-surface including new variable
4073    o modified multi-dim method to work on cube
4074    o bug fix in KPP (from DM)
4075    
4076    checkpoint40pre9
4077    o added DST advection schemes
4078    o fix MPI bug on SGI's
4079    o modifications for non-linear free-surface
4080    o fixed conditionals for fixed flow/passive tracer only mode
4081    o added tension/strain form of stress tensor
4082    o changes to commenting of arguments for TAF/TAMC
4083    o added/updated many matlab scripts
4084    o added multi-dimensional advection method for tracers
4085      
4086    checkpoint40pre8
4087    o new package rw/
4088      Added method for dumping intermediate local arrays:
4089      mdsio_writetile - same as mdsio_writefield except works from inside
4090                        bi,bj loop
4091      mdsio_writelocal - same as mdsio_writetile except works for local
4092                         arrays
4093      write_local_r? - higher-level wrapper for mdsio_writelocal
4094      Controlled by diagFreq. Defaults to zero (ie. no dumps)
4095      Example given at end of mom_vecinv.F that dumps some local arrays.
4096    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
4097      control flux-form versus vector invariant code.
4098      Switch is runtime flag vectorInvariantMomentum (defaults to false)
4099      or genmake -DISABLE ...
4100    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
4101      (additional storing is now needed for case vecinv;
4102      currently nothing implemented to switch this storing off
4103      in case fluxform is used since no CPP flag available).
4104    
4105    checkpoint40pre7
4106    o bug fix in dynamics.F
4107      calc_viscosity called before k=1,Nr loop.
4108    o added some #ifdef's ALLOW_PASSIVE_TRACER
4109    o cleaned initialisations in ctrl_map_ini
4110      related to TAF
4111    
4112    checkpoint40pre6
4113    o split dynamics into thermodynamics & dynamics
4114    o corresponding split of calc_diffusivity into
4115      calc_diffusivity, calc_viscosity
4116      (kpp_calc_diff, kpp_calc_visc).
4117    o Added diffkr, kapgm to control variables
4118    o bug fix in gmredi_slope_limit for ldd97
4119    
4120    checkpoint40pre5
4121    o proper initialization of Adams-Bashforth time stepping
4122      + uses forward step for very first step of model (iter=0)
4123    o re-generated *all* output since almost all output is modified by this
4124      change (sorry but we've been putting this one off for about 2 years)
4125      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
4126        *not* regenerated since they are already out of date and I don't
4127        want to create the impression that they are suddenly working.
4128    o removed KAP stuff for DEC's
4129    o modified/added many .cvsignore files in */code and */input
4130    o added new expt "solid-body.cs-32x32x1"
4131      + this uses an alternative form of ini_curvilinear_grid.F which
4132        is not necessarily any better than the current one...
4133    
4134    checkpoint40pre4
4135    o added re-initialisations of utrans,vtrans,rtrans in
4136      calc_common_factors which are crucial for TAF.
4137    o extended iMin,jMin range for calc_common_factors,
4138      calc_diffusivity
4139    o added option ALLOW_PASSIVE_TRACER
4140    o a few minor updates and fixes
4141    
4142    checkpoint40pre3
4143    o created calc_gtr1.F for gad package
4144    o split the_main_loop and re-introduced forward_step
4145    o some recomputations of nIter0 for TAMC
4146    
4147    checkpoint40pre2
4148    o Updated to latest branch of AJA, JMC
4149    o Added gradient check package
4150    o Added routines for passive tracer handling
4151    o Added carbon sequestration sensitivity experiment
4152    
4153    checkpoint39
4154     o Modifications and fixes to support TAMC
4155       (mainly missing or wrong directives)
4156     o Corrected common blocks when fooling TAMC to produce adjoint I/O
4157       in addummy_in_stepping
4158     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
4159     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
4160     o Included following packages:
4161       cal: calendar
4162       exf: external forcing
4163       ecco: essential routines to control use of cal, exf
4164             (NB: this is not the full ECCO environment)
4165     o disabled some packages by default in genmake
4166    
4167  checkpoint38  checkpoint38
4168   o see notes_c37_adj.txt   o see notes_c37_adj.txt
4169   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t

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