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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.232 by jmc, Wed Dec 31 20:29:54 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
7    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
8    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
9      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
10    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
11    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
12    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
13    
14    checkpoint52d_post
15    o re-tiled many expts to allow comparison in multi-processor mode
16      - updated output accordingly
17      - changed hs94.128x64x5 to use intial T from file rather than use the
18        random number generator
19    o add infrastructure in model routines for fizhi and gridalt packages
20    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
21    o changes to permit hi-res, cubed-sphere, configuration
22      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
23      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
24      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
25        of surface winds for the cube
26      (A verification experiment, based on global_ocean.cs32x15, but with
27       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
28       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
29       complete with example surface forcing files and matlab scripts to look
30       at the output and compare it with that of global_ocean.cs32x15.)
31    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
32       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
33       to conform to the common rule.
34    o check-in the first version of the coupler + interfaces for multi-components
35       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
36       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
37       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
38       - ocean and atmos. share the same horizontal grid (no interpolation).
39       - exchanges between component and coupler is done in forward_step
40    o new verification experiment, cpl_aim+ocn:
41       coupled ocean - AIM atmosphere on cs32 grid.
42    
43    checkpoint52d_pre
44    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
45    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
46    
47    checkpoint52c_post
48    o Fixing OPTIONS files for use of exf:
49      - ALLOW_ECCO not needed
50      - ECCO_CPPOPTIONS.h should not be included from
51        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
52        as has been the case in the past
53      - All cal/exf related options are currently set in
54        single header file. Should remain so until we
55        agree on a consistent new policy.
56    o Removed all CPP options for cal package.
57      cal has no more CPP options.
58    o modified STOREs in GAD_ADVECTION
59    o corrected key comp. for passkey
60    
61    checkpoint52b_post
62    o new version: "thsice" of thermodynamic sea-ice pkg:
63     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
64     - modify fluxes but do not change theta directly;
65     - light cleaning of bulk_force pkg (still needed with thsice).
66     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
67       + output_thsice.txt to test thsice & bulk_force pkgs.
68    o put back grid & coriolis monitor output.
69    checkpoint52b_pre
70    
71    o call "do_the_model_io" at the beginning (=> dump initial state)
72    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
73    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
74      (need info on NUMBER_OF_PTRACERS)
75    o missing PTRACERS headers in some routines
76    o default tamc.h in pkg/autodiff supposed to crash
77      to ensure proper customization
78    
79    checkpoint52a_post
80    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
81      - moved surfaceTendencyTice from pkg/seaice to main code
82      - subroutine FREEZE_SURFACE now limits only surface temperature
83        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
84        => new output.txt for global_ocean.cs32x15 & global_with_exf
85      - keep the old version of FREEZE for backward compatibility;
86        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
87      - corresponding modifs for TAF directives
88    o added surface flux output variables to TIMEAVE_STATVARS
89    o time-averaged output for pkg/ptracers
90    o fix problem with ECCO-related divided adjoint
91      snapshot file was missing some ad-variables,
92      but no warning issued by TAF
93    
94    checkpoint52a_pre
95    o some bug fixes for #undef REAL4_IS_SLOW
96    
97    checkpoint52 = ecco_c52_e35
98    o after testing adjoints of checkpoint51u_post
99    
100    checkpoint51u_post
101    o this is the post-merge tag of the ecco-branch
102      (needs another clean checkout and re-testing)
103    o various natl_box_adjoint configs and results
104      but no input fields
105    o obcs adjoint not yet merged!
106    o adding ECCO global 1x1 and 2x2 degree configs
107    o updated/extended some store directives for seaice
108    o pkg/ecco now containes ecco-specific part of cost function
109    o top level routines the_main_loop, forward_step
110      supersede those in model/src/
111      previous input data.cost now in data.ecco
112      (new namelist ecco_cost_nml)
113    o in ctrl/ cleaned some cross-dependencies and updated CPP options
114    
115    checkpoint51t_post
116    o this is the pre-merge tag of the ecco-branch
117    
118    checkpoint51s_post
119    o cleanup: removed various obsolete #define-s
120    o pkg/grdchk
121      - renamed 'ph-grd 3' to 'grad-res'
122      - merged from ecco-branch
123        (remaining bug fixes for obcs gradient checks)
124      - additional high-precision output for testreport
125        (grep for 'precision_grdchk_result')
126    
127    checkpoint51r_post
128    o cleaned up or removed CPP_OPTIONS.h files
129    o updated results for some of the tests to reflect the new
130      optfiles (-ieee: -O0 instead of -O3)
131    
132    checkpoint51q_post
133    o cd_code:
134      - moved cd_scheme.F -> cd_code_scheme.F
135      - separate read_checkpoint from cd_code_ini_vars.F
136      - separated cd_code part from write_checkpoint
137      - updated AD_SOURCE, generated .flow
138      - added CD_CODE_VARS.h to the_main_loop
139      - Moving cd_code specific store dir.s to pkg/cd_code
140    o ctrl package totally restructured
141      - pack/unpack now optional and decoupled from
142        xx_/adxx_ I/O
143      - ctrl_pack/unpack cleaned
144        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
145      - confined inclusion of AD_CONFIG.h to where necessary.
146    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
147    
148    checkpoint51p_post
149    o create initial cd_code package
150      - WARNING: the initialization of fields within packages
151        is broken because INI_FIELDS (where READ_CHECKPOINT is
152        called) is called *before* PACKAGES_INIT_VARIABLES.
153        This seems to be backwards since
154        1) its important to initially zero the entire field including
155           the "halo" region
156        2) zeroing needs to be done *before* reading pickup info
157           and the pickup call might or might not happen in any
158           particular run
159      - this needs an overhaul for R2
160    o cleanup verification/*/code/GMREDI_OPTIONS.h
161    o cleanup testreport
162    
163    checkpoint51o_post
164    o bringing AD-related verif's up to date with genmake2
165      - carbon/
166      - global_ocean.90x40x15/
167      - hs.94.1x64x5/
168      - (front_relax/ )
169    o (more) consistent directory structure for AD-related verif.'s
170    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
171    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
172    o bug fix in find_alpha.F for MDJWF:
173      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
174        change rho -> rho-rhoConst
175      - replace call find_rho to find_rhonum
176    o initialisation of rFlx extended to full array (required by TAF)
177      and shifted to thermodynamics
178    o removed PTRACERS.h in ptracers routine
179    o added surfacetendencyPtr to S/R parameter list pracers_forcing
180    o Correcting initialisations for fVerU, fVerV.
181    o helping TAF to recognize dependency on kUp for
182      fVerU, fVerV
183    o Replacing delZ by delR in pkg/ctrl/
184    checkpoint51o_pre
185    
186    o undid all of cp51 pending some cleanups and discussion
187    o added the [#include "AD_CONFIG.h"] statement to all files that need
188       it for adjoint/tl #defines
189     o re-worked the build logic in genmake2 to support AD_CONFIG.h
190     o removed tools/genmake since it no longer works
191    
192    checkpoint51n_post
193    o modifications to make FREEZE flux visible to pkg/kpp
194      - moved surfaceTendencyTice from pkg/seaice to main code
195      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
196      - subroutine FREEZE now limits only surface temperature
197        (this means new output.txt for global_ocean.90x40x15,
198         global_ocean.cs32x15, and global_with_exf)
199    o added surface flux output variables to TIMEAVE_STATVARS
200    
201    checkpoint51n_pre
202    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
203    o added [#include "AD_CONFIG.h"] to all files that use the following
204      defines:
205      - ALLOW_ADJOINT_RUN
206      - ALLOW_TANGENTLINEAR_RUN
207      - ALLOW_ECCO_OPTIMIZATION
208    
209    checkpoint51m_post
210    o incorporating changes to get TAMC/TAF working in genmake2
211      - added new TAMC/TAF targets to the Makefile
212      - various cleanups related to package handling
213      - these changes should have no impact on the forward model
214    
215    checkpoint51l_post
216    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
217     - faster algorithm for cal_addtime.F
218     - higher precision arithmetic, where needed
219     - pkg/exf *startdate variables changed from calendar date to
220       model integration time
221    
222    checkpoint51l_pre
223    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
224    o enable to apply restoring on S & T only in a latitude band.
225    o update output (external_forcing_surf modif. change truncation errors)
226       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
227    
228    checkpoint51k_post
229    o change default to: useNHMTerms=.FALSE.
230     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
231       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
232     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
233        exp1, ideal_2D_oce
234     - change data file of oceanic exp (leave the results unchanged for now)
235       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
236    o set gravitySign automatically according to the vertical coordinate used
237      (and change sign: back to "logical" value: +1 when R increases downward)
238    o added an include barrier to the default CPP_OPTIONS.h and
239      removed the #include "PACKAGES_CONFIG.h" from it
240    o fix a bug in mom_fluxform (from chk51j_post)
241    
242    checkpoint51j_post
243    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
244    o adjusted some flow directives (dynamics, thermodynamics)
245    o added cubed-sphere case to test cost function
246    o heckpoint_lev?_directives.h now include
247      pkg-specific directives, whenever those are enabled.
248    o Moving pkg-specific flow directives to corresponding pkg
249      Moving pkg-specific differentiation list to corresponding pkg
250      Moving pkg-specific checkpoint-lev storing to corresponding pkg
251      ---> conventions are
252           - pkg_ad.flow
253           - pkg_ad_diff.list
254           - pkg_ad_check_lev?_dir.h
255    
256    checkpoint51i_post
257    o merge of the branch-genmake2
258      - knowingly breaks the older genmake
259      - automatic generation of all ALLOW_${PKG_NAME} defines
260      - new testreport supersedes older testscript
261    o large number of package inclusion and header cleanups
262    checkpoint51i_pre
263    
264    o new output for adjoin of global ocean vector invariant
265    o fix for checkpoint of thermodynamic seaice and bulk_force
266    o Steph gchem various cleanups
267    
268    checkpoint 51h_pre
269    o fixed some single quotes
270    o modify gchem pkg to be more versatile
271    o modifications to clean up dic pkg
272    o add pkg/cfc
273    
274    checkpoint51g_post
275    o provide links for ARPACK and ADM*TLM
276    o start removing verification/vero/
277    o update AD-related stuff
278      (in particular some IF-statements in model/src/ routines)
279    o adding to verification/global_ocean.90x40x15/ adjoint of
280      vector invariant setup
281    
282    checkpoint51f_post
283    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
284    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
285      of tracer Green's fucntions for ocean inversion project.
286    
287    checkpoint51f_pre
288    o Added on-the-fly spatial interpolation capability
289        "USE_EXF_INTERPOLATION" to pkg/exf.
290      - This is a temporary Cartesian-grid hack until
291        the super-duper ESMF coupler becomes available.
292      - See verification/global_with_exf/README for usage example.
293      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
294        flags and modified pkg/seaice accordingly.
295    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
296        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
297        non-local transport term.
298    
299    checkpoint51e_post
300    o pkg/mom_vecinv:
301      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
302      - add time-ave diagnostic of vorticity advection.
303    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
304    o atmospheric geopotential: - include water vapor effect;
305                                - use p^kappa in p* scaling.
306    o land pkg: read initial state from files.
307    o AIM : add stratospheric drag in the upper level
308    
309    checkpoint51d_post
310    o change function ILNBLNK (=> last non-blank char.) to return zero
311      (instead of the string length) when the string. char is empty
312    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
313    o modif's to restore TAMC compatibility
314      - avoid "_d" constructs in PARAMETER declarations
315      - avoid interrupting lines by comment lines
316    o Use cluster local disks for purely local I/O
317      vs. globally visible disks needed for ctrl stuff
318      (merged from ecco-branch)
319      - new active_file_loc... and mdsio_..._loc routines
320      - affected packages: autodiff, ctrl, grdchk, mdsio
321    
322    checkpoint51c_post
323    o introducing integer flag debugLevel
324      - debLevZero: suppress all output
325      - debLevA: standard
326      - debLevB: equivalent to current debugMode=.TRUE.
327    o introducing pathname variable mdsioLocalDir for mdsio
328      that can be specified at runtime
329      (relevant for cluster I/O to local disk)
330    `
331    >>>checkpoint51b_post
332    adjoint of ptracers
333    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
334    o extended state in checkpoint_lev?, etc.
335    o alternative ctrl/cost with tr1 or ptracer
336    o new comlev1_bibj_ptracers
337    o new ptracers.flow
338    o made ptracers_forcing same as external_forcing_s
339    o added verification for adjoint with ptracers
340      - adm. grdchk fail so far
341      - tlm. grdchk OK
342      - checked tapelev/comlev recomputations: OK
343    <<<checkpoint51b_pre
344    
345    checkpoint51a_post
346    o added code for biogeochemistry package
347      - new pkgs: dic, gchem
348      - new subroutine in ptracers
349    o modify code for biogeo packages
350      - in model/src and pkg/ptracers
351    
352    checkpoint51
353    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
354      - autodiff, ctrl, exf, grdchk, seaice
355      kept separate packages
356      - cost, ecco, obcs
357    o updating verification/internal_wave, verification/lab_sea
358      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
359    
360    checkpoint50i_post
361    o Preparing next differentiable checkpoint and sync
362      of MAIN vs. ecco-branch
363      - 1st step: this one is differentiable
364      - 2nd step: next(! not this) checkpoint will have updated packages
365                  from ecco-branch)
366    
367    checkpoint50h_post
368    o new package "land": provide surface BC for AIM.
369    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
370    o AIM: use true log-P extrapolation for near surface temp (= as in
371        F.Molteni paper) ; update aim.5l_cs output.
372    o New variable in PARM03 for more flexible pickups
373    o somewhat cleaned package initialisation sequence for
374      ctrl/ cost/ ecco/ in packages_... routines
375    
376    checkpoint50g_post
377    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
378      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
379      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
380        made the default because of faster convergence than ADI
381    
382    checkpoint50f_post
383    o exf totally restructured
384      - replaced all exf_set_ routines by one generic exf_set_gen.F
385        and made sure it's still differentiable
386      - split exf_getffields.F into new exf_bulkformulae.F
387      - exf_inscal_/exf_outscal_ suffixes consistent with field names
388      - updated adjoint/makefile and relevant verif. accordingly
389    
390    checkpoint50f_pre
391     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
392          + change Evap over land. (update aim.5l_cs output)
393     o added missing .cvsignores and made uniform across expts
394     o changed configuration of tidal_basin_2d expt
395     o added pkg/debug functions for tracing code in fatal crashes
396     o tidied pkg/monitor to use MONITOR_OPTIONS.h
397     o new fn in pkg/monitor to stop model if solution grows too big
398     o removed lots of single quotes from comments
399    
400    checkpoint50e_post
401    o make KPP work with PTRACERS
402     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
403       nearly a copy of kpp_transport_s
404     - there is no analogue to SurfaceTendencyS, so I have to use
405       gPtr(of the surface layer) instead
406    o add a new platform SunFire+mpi (SunFire 15000) to genmake
407    checkpoint50e_pre
408    
409    checkpoint50d_post
410    o change kpp output from multiple-record state files to single-record state
411      files analogous to write_state.F
412    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
413      analogous to the cg2d-related output.
414    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
415      so that writing to internal file fn (with length 512) fails.
416    checkpoint50d_pre
417    
418    checkpoint50c_post
419    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
420    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
421    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
422    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
423    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
424    
425    checkpoint50c_pre
426    Merging from release1_p13:
427    o bug fix for pkg/seaice dynamic solver
428    o Added SEAICE_initialHEFF to pkg/seaice
429    
430    checkpoint50b_post
431    o store u*,v* in gU,V instead of in guNm1,gvNm1
432    o in order to put the momForcing out of the Adams-Bashforth:
433      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
434      to timestep.F
435    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
436    o re-generate output for highly sensitive test-exp:
437       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
438    
439    checkpoint50b_pre
440    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
441    o corrected CPP option mismatch in exf_Bulk... functions for case
442      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
443    
444    checkpoint50a_post
445    o Bug fix for merging between c50 and KPP.
446      ikey was passed from thermodynamics to kpp_calc via
447      common block rather than being recomputed in kpp_calc,
448      in contradiction with new key itdkey.
449      New key ikppkey created, and tamc.h headers updated.
450    
451    checkpoint50
452    - 2nd step of merge with ecco-branch:
453      merge changes in ecco-branch back into main trunk
454    - bug fix in find_alpha
455    - more storing in gmredi_calc_tensor.F, kpp_routines.F
456    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
457    - merged some sliced AD support routines
458    
459    checkpoint49
460    merged from ecco-branch:
461    o exf:
462      - Enable initialisation of forcing fields to constant
463        (runtime) values.
464      - in exf_getffields.F
465        Reduce i-/j-loop to interior domain, discarding overlaps.
466        That also fixes wrong TAF-key computations for key_1, key_2
467        with bulf formulae.
468      - exf_init.F modify #ifdef for exf_init_evap
469      - exf_getffieldrec.F, ctrl_getrec.F
470        The following INT-usages are not safe:
471          fldsecs  = int(fldsecs/fldperiod)*fldperiod
472          fldcount = int(fldsecs/fldperiod) + 1
473        and were modified.
474    o autodiff: checkpoint_lev...
475      - updated storing for bulk formulae (some arrays were missing)
476      - added state for seaice package
477      - synchronized with main branch
478    o DIVA:
479      Modif.s in
480      - the_main_loop.F
481      - the_model_main.F
482      and added cost_final_restore.F cost_final_store.F
483      o With these changes, it is possible to fully separate
484        the first forward run to compute the cost function (mdthe_main_loop)
485        and adjoint runs over individual DIVA intervals (adthe_main_loop)
486        into separate model executions.
487        This enables better tuning of DIVA to given queue sizes.
488      o Loss of cost function value in consecutive DIVA runs is
489        fixed by storing to 'costfinal' file.
490      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
491        beginning/end of adjoint integration is accounted for.
492      The current changes apply to TAF-1.4.26.
493      TAF has one remaining bug, requiring one manual change
494      (see MITgcm manual).
495    o cal: synchronized between MAIN and ecco-branch
496    
497    checkpoint48i_post
498    o Changes to restore differentiability of code w.r.t. previous tag
499      (mostly adding new routines to make list and replacing
500      pressure by totPhiHyd).
501    o Updated and merged grdchk package
502      - has both ADM and TLM checks
503      - works for single- and multi-proc.
504      - output cleaned
505      - worked successfully for parallel DIVA
506    o genmake:
507      - Adding -platform=SP4
508      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
509    o Modif. for DIVA:
510      ctrl_unpack should not be called in intermediate DIVA interval.
511      (similar thing would apply for active files such as
512      tbar, sbar, psbar, which should not be reinitialised;
513      only relevant for ecco-branch)
514    
515    checkpoint48h_post
516    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
517    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
518    o Added SEAICE_initialHEFF to pkg/seaice
519    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
520    
521    checkpoint48g_post
522    --- EOS:
523    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
524      store total Potential in totPhyHyd for diagnostics & EOS.
525    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
526    --- Pressure/geopotential gradient:
527    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
528    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
529      ( changes results of global_ocean_pressure )
530    o NLFS + z-coord.: add eta*Rho' contribution.
531    o accurate phiHyd when using interface-W at the middle between 2 centers
532     ( changes results of ideal_2D_oce )
533    o includes r* 2nd term in potential gradient.
534    
535    checkpoint48f_post
536    Merging from release1_p12:
537    o Modifications for using pkg/exf with pkg/seaice
538      - improved description of the various forcing configurations
539      - added basic radiation bulk formulae to pkg/exf
540      - units/sign fix for evap computation in exf_getffields.F
541      - updated verification/global_with_exf/results/output.txt
542    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
543      (SBO) core products, including oceanic mass, center-of-mass,
544      angular, and bottom pressure (see pkg/sbo/README.sbo).
545    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
546      to avoid negative values in shallow regions.
547      - updated verification/natl_box/results/output.txt
548      - updated verification/lab_sea/results/output.txt
549    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
550    o Added useSingleCpuIO option (see PARAMS.h).
551    o Updated useSingleCpuIO option in mdsio_writefield.F to
552      work with multi-field files, e.g., for single-file pickup.
553    o pkg/seaice:
554      - bug fix in growth.F: QNET for no shortwave case
555      - added HeffFile for specifying initial sea-ice thickness
556      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
557    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
558      kpp_transport_t.F, forward_step.F, and the_main_loop.F
559    o pkg/seaice:
560      - adjoint-friendly modifications
561      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
562    
563    checkpoint48e_post
564    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
565    o dynamics: change definition of computational domain & adapt mom_fluxform
566      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
567    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
568        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
569        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
570        global_ocean.90x40x15 global_with_exf global_ocean_pressure
571        inverted_barometer solid-body.cs-32x32x1
572      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
573    
574    checkpoint48d_post
575    o in preparation for r*:
576     a) use pre-computed gradient of hydrostatic potential:
577        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
578     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
579        => affects results of glob_oce_pressure (different truncation error)  
580      update output.txt of ideal_2D_oce & global_ocean_pressure
581    
582    checkpoint48d_pre
583    o in preparation for r*:
584      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
585      pass the 2 comp. of the grad. as arguments to momentum S/R.
586      but for the moment, only used if it does not change the results.
587    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
588    
589    checkpoint48c_post
590    Modifications in treatment of initial flux forcing controls
591    to avoid extra storing of flux fields.
592    
593    checkpoint48c_pre
594    o Added tidal_basin_2d experiment (currently 1D!)
595    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
596    
597    checkpoint48b_post
598    o r* coordinate added in #ifdef NONLIN_FRSURF block.
599     (modification to pressure gradient not yet implemented)
600    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
601      (for U & V) that are used for vertical advection of momentum.
602    
603    checkpoint48a_post
604    o In preparation for r*, use temp. array to compute vertical transport
605       in flux-form momentum pkg. => change results of few test-exp.
606      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
607                        lab_sea, natl_box & plume_on_slope
608    
609    checkpoint48
610    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
611    
612    checkpoint47j_post
613    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
614    o moved adexch from forward_step to addummy_in_stepping
615    o added exch in ctrl_map_...
616    o aveFreq.=0. at end of cost_final to avoid overwrite in
617      reverse checkpointing loop
618    o Yet more changes in gmredi:
619      * adgmredi_calc_tensor
620        avoiding all recomputation of gmredi_slope_limit
621      * adgmredi_x/y/rtransport
622        added flag for excessive storing to avoid recomp. of
623        u/v/rtans, dTdx/y/z
624        -> this is not really necessary and very memory-consuming
625      * adgmredi_slope_psi:
626        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
627      * gmredi_slope_limit
628        re-activated full calculation of taperfct for case 'ac02'
629    o updating verification/ adjoints of carbon, global_ocean.90x40x15
630    
631    checkpoint47i_post
632    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
633    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
634      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
635    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
636    o gmredi: fix few bugs.
637    
638    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
639    This will be a good checkpoint to plug into the ecco-branch.
640    o few modif.'s to get latest version adjointed
641      (mainly kick out code in ini_linear_phisurf)
642    o modif's to run adjoint with exactConserv
643    o case GM_BOLUS_ADVEC should be cleaned
644      S/R gmredi_slope_psi should be cleaned
645    o verification/carbon now has exactConserv=.TRUE.
646    
647    checkpoint47g_post
648    o time-average AIM output: becomes independent from statvars time-average
649      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
650    o After TAF bug fix:
651      Tested adjoint of gmredi package.
652      Tests were done with checkpoint47 rather than with latest
653      checkpoint47f_post since the latter is broken for the adjoint
654      verification/carbon/ contains both ADM and TLM gradient checks.
655    Here they are, before they get changed/lost/stolen.
656    Mostly modif.'s to fix numerical sensitivities.
657    Gradient checks OK for
658    - GM_taper_scheme:
659      * clipping
660      * ac02
661      * linear
662      * glw91
663      * dm95
664      * ldd97
665    - GMREDI_OPTIONS:
666      * GM_VISBECK_VARIABLE_K
667      * GM_NON_UNITY_DIAGONAL
668      * GM_EXTRA_DIAGONAL
669      * GM_BOLUS_ADVEC
670    in conjunction with data.gmredi parameters to be checked in
671    in a few minutes under verification/carbon/code/
672    
673    checkpoint47f_post
674    Merging from release1_p10:
675    o modifications for using pkg/exf with pkg/seaice
676      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
677        and SEAICE_EXTERNAL_FLUXES
678      - pkg/exf CPP options EXF_READ_EVAP and
679        EXF_NO_BULK_COMPUTATIONS
680      - usage examples are Experiments 8 and 9 in
681        verification/lab_sea/README
682      - verification/lab_sea default experiment now uses
683        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
684    
685    checkpoint47e_post
686    o created a tag prior to creating a branch
687    
688    checkpoint47d_post
689    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
690      at the bottom boundary had an erroneous half slip boundary condition
691    o added bottom drag and no slip boundary condition capabilities to
692      oceanic pressure coordinates code
693    o added new verification experiment global_ocean_pressure, this experiment is
694      also described in the tutorial section of the manual
695    checkpoint47d_pre
696    
697    checkpoint47c_post
698    o Added a verification experiment for a global cubed-sphere ocean run
699      -  verification/global_ocean.cubed32x32x30
700      -  uses pkg/therm_seaice and pkg/bulk_forcing
701    
702    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
703    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
704      when using P-coordinate; only implemented for atmospheric config.
705    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
706      NOTES: requires option NONLIN_FRSURF to be "#define".
707    o update advect_xz/results/output.txt (left from checkpoint44g_post)
708    
709    checkpoint47b_post
710    Merging from release1_p9:
711    o pkg/seaice
712      - removed GOTO's and added taf directives
713      - double precision constants to reduce the g77 (Linux)
714        to F77 (SGI) differences reported in release1_p8
715    o tools/genmake
716      - added SGI options
717    o verification/testscript
718      - updated to that of checkpoint47a_post
719    o verification/global_ocean.90x40x15/input/eedata
720      - modified for SGI f77 compatibility
721    o verification/lab_sea
722      - added description of sea-ice model
723      - added missing matlab routines
724      - added test of thermodynamics parallelization
725    
726    checkpoint47a_post
727    o new pkg: aim_v23
728     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
729       for now, keep the same surface forcing as before.
730     - Part-Cell implemented into AIM; check that Heat & Water are conserved
731     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
732     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
733    o add diagnostic of surface correction term in monitor output
734    
735    o bulk_force and therm_seaice
736    - Two packages:  bulk_force (Bulk forcing)
737      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
738    - Earlier integration from Stephaine Dutkiewicz
739      and Patrick Heimbach.
740    - Two ifdef statements for compile time,
741       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
742    
743    checkpoint47
744    differentiable version of checkpoint46n_post
745    o bug fix in quasihydrostaticterms
746    o * "clean" adjoint code (in terms of extensive recomputations)
747        can now be obtained for all GMREDI options (i.e. for
748        - GM_VISBECK_VARIABLE_K
749        - GM_NON_UNITY_DIAGONAL
750        - GM_EXTRA_DIAGONAL
751        - GM_BOLUS_ADVEC )
752      * However, wrong gradient check problem remains unsolved.
753      * New CPP options have been introduced for different
754        tapering schemes
755    o external_fields_load now part of differentiation list
756    o pressure needs multiple storing;
757      would be nice to have store_pressure at beginning or
758      end of forward_step, e.g. by having phiHyd global (5-dim.)
759      (NB: pressure is needed for certain cases in find_rho,
760      which is also invoked through convective_adjustment).
761    o recomputations in find_rho for cases
762     'JMD95'/'UNESCO' or 'MDJWF' are OK.
763    o #define ATMOSPHERIC_LOADING should be differentiable
764    o ini_forcing shifted to begining of initialise_varia
765    o Incorporating QNVS line search routines into MITgcm
766      (this is separate code, and therefore not under pkg)
767      lsopt/, optim/
768    o Updated verification/carbon/
769      - #define GM_VISBECK_VARIABLE_K
770      - GM_taper_scheme    = 'ldd97'    
771    
772    checkpoint46n_post
773    Merging from release1_p8:
774    o verification/natl_box:
775      updating new external_fields_load routine
776    o New package: pkg/seaice
777      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
778      The sea-ice code is based on Hibler (1979-1980).
779      Two sea-ice dynamic solvers, ADI and LSR, are included.
780      In addition to computing prognostic sea-ice variables and diagnosing
781      the forcing/external data fields that drive the ocean model,
782      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
783      The implied surface heat flux is then stored in variable
784      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
785      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
786      non-local transport term.  Because this call precedes model
787      thermodynamics, temperature under sea-ice may not be "exactly" at
788      the freezing point by the time theta is dumped or time-averaged.
789      N.B.: fairly large differences in accuracy occur across
790            different platforms/compilers; comparison between
791            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
792            generated output gives:
793       T           S           U           V
794      C D M    c        m  s        m  s        m  s        m  s
795      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
796      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
797      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
798    
799      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
800    o GAD:
801      - generated new common blocks to account for call of
802        same gad routines with differing traceridentities
803        (needed to modify tracerIdentity indices in GAD.h)
804      - generated separate common blocks for case useCubedSphereExchange
805        (Department of Futurology)
806      - parameter lists to gmredi_?transport: added tracerIdentity
807      - added new key indices to tamc.h
808    o external_fields_load:
809      - added this routine to TAF list
810      - needed to make some common blocks global and additional storing
811        along the same lines as exf package (checkpoint_lev?_directives.h)
812    o exf:
813      updated external forcing package
814      - bug fixes carried over from ecco-branch
815        (missing OBCS_OPTIONS.h in two routines)
816      - enable easy to use "no forcing".
817      - added exf I/O for atmospheric loading
818      - added exf I/O for runoff data
819      - transfered scaling between exf <-> MITgcm to exf namelist
820    o Adding new verification experiment global_with_exf.
821      This verification experiment is almost identical to the
822      global_ocean.90x40x15 experiment, except that it uses
823      the exf (and cal) package instead of the
824      external_fields_load routine (cf README file).
825    
826    checkpoint46m_post
827    o modified testscript to return -- when there are no lines of "%MON" output
828    o added new flag "quasiHydrostatic" for QH mode
829      and new routine quasihydrostaticterms()
830    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
831      New routine: mom_u_coriolis_nh()
832    o fixed sign of non-hydrostatic metric terms in u and v equations.
833      Depend on correct sign of gravitySign.
834    o added work.pc* to .cvsignore in aim directories using ifc
835    o introduced flag for controllin non-hydrostatic metric terms
836    o removed gravitySign from PARM04
837    o switched to g77/ifc from pgf77 in aim experiments
838    
839    checkpoint46l_post
840    o made convective adjustment work with pressure coordinates:
841     - changed the direction of k-loop in convective_adjustment.F for the
842       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
843     - adjusted the reference pressure k-index in convective_adjustment.F
844     - adjusted the convection condition in convect.F (in analogy to
845       calc_ivdc.F)
846     - convective_adjustment no longer computes anything on the halos
847     - removed the warnings about negative salinity from find_rho.F and
848       find_alpha.F; instead the new routine look_for_neg_salinity, called
849       at the beginning of find_rho, find_alpha, and find_beta, does a
850       check of the entire slice, if CPP-option
851       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
852    checkpoint46l_pre
853    
854    checkpoint46k_post
855    o fixed the verification/global_ocean.90x40x15 experiment:
856     - new bathymetry (the world according to A., JMC, and M.)
857     - new initial fields and forcing fields (*.bin files)
858     - new POLY3.COEFFS (for the next release one should switch to a full
859       equation of state: JMD95P or MDJWF)
860     - fixed several errors and redundancies in the data file
861     - experiment uses looped cells
862     - added matlab directory with diagnostic scripts for plotting of output
863    
864    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
865     - read AIM physics parameters from a file (data.aimphys)
866     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
867    
868    checkpoint46j_post
869    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
870    o move wVel computation at the end of the time step, in S/R integr_continuity
871    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
872    o update timeave pkg for wVel diagnostic.
873    checkpoint46j_pre
874    
875    checkpoint46i_post
876    o Clean up AIM package (and keep the results unchanged):
877      include CPP_OPTION and use IMPLICT NONE in all routines ;
878      declare all the variables _RL ; use _d 0 for all numerical constants.
879      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
880    
881    checkpoint46h_post
882    o cleaned up the use of rhoNil and rhoConst.
883      - rhoNil should only appear in the LINEAR equation of state, everywhere
884        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
885        and the dynamical equations are all divided by rhoConst
886    o introduced new parameter rhoConstFresh, a reference density of fresh
887      water, to remove the fresh water flux's dependence on rhoNil. The default
888      value is 999.8 kg/m^3
889    o cleanup up external_forcing.F and external_forcing_surf.F
890      - can now be used by both OCEANIC and OCEANICP
891    checkpoint46h_pre
892    
893     Added code to convert surface volume flux (fresh water) into
894     a mass flux when using P coordinates in the ocean (OCEANICP).
895     Note: It assumes you have set rho0=rhoConst=density of fresh water.
896    
897    checkpoint46g_post
898    o Include a new diagnostic variable phiHydLow for the ocean model
899      - in z-coordinates, it is the bottom pressure anomaly
900      - in p-coordinates, it is the sea surface elevation
901      - in both cases, these variable have global drift, reflecting the mass
902        drift in z-coordinates and the volume drift in p-coordinates
903      - included time averaging for phiHydLow, be aware of the drift!
904    o depth-dependent computation of Bo_surf for pressure coordinates
905      in the ocean (buoyancyRelation='OCEANICP')
906      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
907        Theta, Salinity, and Pressure in the parameter list. This routine is
908        presently contained in find_rho.F. This routine does not give the
909        correct density for 'POLY3', which would be a z-dependent reference
910        density.
911    o cleaned up find_rho
912      - removed obsolete 'eqn' from the parameter list.
913    o added two new verification experiments: gop and goz
914      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
915    checkpoint46g_pre
916    
917    checkpoint46f_post
918    o Enable tangent linear (forward mode) gradient checks:
919      - extended active file handling to g_... files
920      - added TANGENT_SIMULATION to theSimulationMode
921      - extended grdchk package accordingly
922    o added tangent linear setup in verification/carbon/code_ftl
923    o added adjoint setup in verification/front_relax/code_ad
924    
925    checkpoint46e_post
926    o Added new equation of state -> MDJWF
927      - EOS of McDougall et al., 2002, JAOT, submitted
928      - caveat: the equation of state is only valid for a smaller (more
929        realistic?) range of values than JMD95P/Z and UNESCO
930      - added masks to the calculation of pressure in store_pressure
931      - added more check values for density in check_eos (ini_eos.F), some of
932        the old check values are out of the range of the MDJWF-eos, so don't
933        expect perfect matches for those
934    checkpoint46e_pre
935    
936    checkpoint46d_post
937    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
938      'OCEANICP', also initialised field pressure correctly in ini_eos in the
939      case of pressure coordinates. eosType='JMD95Z' in
940      combination with buoyancyRelation='OCEANICP' now causes an error.
941    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
942      in find_alpha/beta.
943    checkpoint46d_pre
944    
945    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
946      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
947    
948    checkpoint46c_post
949    o Changes necessary for ocean in p-coordinates
950     -  Added new buoyancy relation = 'OCEANICP'
951     -  Added new parameters = gravitySign (this used to be contained inside
952        the factor dRdZ which I added when we first switched to R coordinates).
953     X GM/Redi is not compatible (yet)
954     X bottom drag and no-slip need to be debugged.
955    checkpoint46c_pre
956    
957    checkpoint46b_post
958    o Added new equation of state -> JMD95Z and JMD95P
959      - EOS of Jackett and McDougall, 1995, JAOT
960      - moved all EOS parameters into EOS.h
961      - new routines ini_eos.F, store_pressure.F
962    o Added UNESCO EOS, but not recommended because it requires
963      in-situ temperature (see JMD95)
964    o Modified formatting for knudsen2.f in utils/knudsen2 and added
965      unesco.f to be used with POLY3
966    checkpoint46b_pre
967    
968    checkpoint46a_post
969    o Added (atmospheric) pressure loading
970      - new field in FFIELDS.h, etc...
971      - new cpp flag ATMOSPHERIC_LOADING
972    o Changed hFacC to _hFacC in calc_phi_hyd.F
973    o Added SHORTWAVE_HEATING to some files for consistency
974    checkpoint46a_pre
975    
976    checkpoint46
977    further merges from release1_p5
978    o new ctrl package
979      - adopted from ECCO environment to enable optimization
980      - added Eliassen Palm fluxes to controls
981    o added Eliassen Palm flux controls to gradient check package
982    o cost package
983      - Compatible with new ctrl package
984      - added Eliassen Palm cost hooks
985      - modif's of existing cost functions
986    o Adjoint-related bug fixes in kpp:
987      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
988      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
989    o autodiff package
990      - flow directives:
991        + new for S/R do_the_model_io
992        + enhanced for S/R checkpoint
993        + new gmredi.flow
994      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
995        disable adcommon.h/g_common.h by default.
996      - fixed problem for adjoint of global_max
997    o modified verification/carbon/
998    o New setup for adjoint of global_ocean
999    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1000    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1001    o incorporated hooks for sponge layer code (external_forcing.F)
1002    
1003    checkpoint45d_post
1004    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1005    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1006      (affects plume_on_slope "cg2d" output)
1007    o add new parameter deltaTfreesurf for free-surface time stepping
1008    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1009    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1010    o change phiMin in exp1 (to agree with documentation)
1011    o add new flags:
1012     - T,S forcing inside/outside Adams-Bashforth
1013     - turn off temp,salt advection and/or forcing
1014     - for each tracer, define internal flag for multiDimAdvection & A-B
1015    o monitor: change definition of KE to check conservation of Energy
1016    
1017    checkpoint45c_post
1018    o Removed f90 comments ("!")
1019    o Modified initialisations to enable exf package for MITgcm
1020      (without invoking ECCO_PACKAGE).
1021    o modifications to gradient check package (Martin Losch)
1022      - enable centered differences
1023      - modified format of standard output
1024    
1025    checkpoint45b_post
1026    o cleaned exchange calls in cg2d
1027    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1028    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1029      to configure barotropic setup (Martin Losch)
1030    o moved some initialisations within bi,bj loop in dynamics
1031      (TAF flow dependency)
1032    o in initialise_varia, moved call packages_init_variables
1033      before convective_adjustment_init
1034      (corresponding adjustment of TAF tape initialisation).
1035    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1036    
1037    checkpoint45a_post
1038    o compute Rho over the whole domain (extend iMin,jMin indices)
1039    o specific exchange for X-slice domain (case Ny=1)
1040    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1041    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1042    
1043    checkpoint44h_post = checkpoint45
1044    o Fix to restore differentiability:
1045      place at which packages_init_variables is called in
1046      initialise_varia is crucial for reverse control flow.
1047    o modifications in GMRedi to enable stable adjoint
1048      (corresponding modif's in thermodynamics, dynamics)
1049    o added missing hook for sponge layer code in external_forcing
1050    o modified test cost functions
1051    o storing in gad_advection (plus removal of write(0,*)!
1052    o missing headers TR1.h added in convective_adjustment routines
1053    o errorMessageUnit set non-equal zero in eeboot
1054      (conflict on some platforms, e.g. IBM SP3)
1055    o modified carbon verif.
1056    
1057    checkpoint44h_pre
1058    o vertical grid option: allow to put the Interface at the middle between
1059      2 cell-centers ; replace delZ in pkg/kpp by drF.
1060    o GM Advective form: Tracers are advected using the residual transport (=
1061      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1062    
1063    checkpoint44g_post
1064    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1065      results) ; ifdef missing in thermodynamics.F
1066    
1067    checkpoint44f_pre,checkpoint44f_post
1068    o added PTRACERS package
1069      This allows an arbitrary number of passive tracers to be integrated
1070      forward simultaneously with the dynamicaly model.
1071      + Implemented so far:
1072        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1073        - I/O and checkpointing
1074        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1075      + Not implemented so far:
1076        - KPP
1077        - OBCS
1078      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1079        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1080        line in data.pkg.
1081      + This package is disabled by default since it increases storage.
1082    
1083    
1084    o testscript: added -cleanup option
1085    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1086                 b) enable to filter 2D fields.
1087    
1088    checkpoint44e_pre,post
1089    o re-wrote convective adjustment to use pre-calculated weights
1090      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1091      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1092      Original calls to convect() still in place.
1093    
1094    chkpt44d_pre,post
1095    o added missing EXCLUDE_MONITOR flags
1096    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1097      (incompatible typ in MIN/MAX expressions caused problems
1098      on IBM SP3)
1099    o in genmake added variable MAKEDEPEND
1100      plus resetting for case SunOS
1101    o added timer_stats.c routine for IBM SP3
1102    o removed variables in dynamics
1103    !!! I forgot to create tag chkpt44d_pre !!!
1104    !!! But chkpt44d_pre = chkpt44c_post    !!!
1105    
1106    o real fresh water flux implemented with non-linear free-surface.
1107    
1108    chkpt44c_pre,post
1109    o few fix (mask in shap_s2, EmPmR in external_field_load,
1110      USE_NATURAL_BCS in solve_for_P);
1111    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1112    
1113    checkpoint44b_pre/_post
1114    o merge of relevant stuff from the ecco-branch:
1115      - genmake: removed $S64 overwrite for case SunOS
1116      - pkg/exf: update and corrections for field swapping and obcs
1117      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1118                  harmonized between ECCO and MITgcm
1119      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1120                      updated checkpointing_lev... lists for obcs
1121      - model/src: minor changes in forward_step, plot_field
1122                   added directive for divided adjoint in the_main_loop
1123      - pkg/mdsio: added mdsio_gl_slice
1124    
1125    o check parameters & config (chkpt44a_pre,post)
1126    o OBC and NonLin_FrSurf.
1127    
1128    checkpoint44
1129    o fix bug in mom_vi_del2uv
1130    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1131    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1132    o update AIM experiments (NCEP input files)
1133    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1134    o added some stuff for AD
1135    
1136    checkpoint43
1137    o added two new advection tests
1138    o added global 4x4 degree ocean test
1139    o added test of H&S94 with free surface on cube
1140    o some final mods for gradient check, adjoint,...
1141    
1142    checkpoint42
1143      Fixed AD-related problems:
1144    o Store directives up-to-date with re-arranged Adams-Bashforth
1145      (mainly thermodynamics.F)
1146    o New store directives for multi-dim. advection schemes
1147      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1148      * new common block and key passkey
1149      (mainly gad_advection.F)
1150    o Modified store directives for split of dynamics/thermodynamics
1151      for the case ALLOW_KPP
1152    o Cleaned argument list for timestep_tracer.F
1153    
1154    checkpoint41
1155    o re-formatted/added comments in prologues of key subroutines
1156      to work with protex
1157    
1158    checkpoint40
1159    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1160    o added FLT (floats) package from Arne along with demo. experiment
1161    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1162      implementation of forward-in-time forcing terms
1163    o more mods for non-linear free-surface including new variable
1164    o modified multi-dim method to work on cube
1165    o bug fix in KPP (from DM)
1166    
1167    checkpoint40pre9
1168    o added DST advection schemes
1169    o fix MPI bug on SGI's
1170    o modifications for non-linear free-surface
1171    o fixed conditionals for fixed flow/passive tracer only mode
1172    o added tension/strain form of stress tensor
1173    o changes to commenting of arguments for TAF/TAMC
1174    o added/updated many matlab scripts
1175    o added multi-dimensional advection method for tracers
1176      
1177    checkpoint40pre8
1178    o new package rw/
1179      Added method for dumping intermediate local arrays:
1180      mdsio_writetile - same as mdsio_writefield except works from inside
1181                        bi,bj loop
1182      mdsio_writelocal - same as mdsio_writetile except works for local
1183                         arrays
1184      write_local_r? - higher-level wrapper for mdsio_writelocal
1185      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1186      Example given at end of mom_vecinv.F that dumps some local arrays.
1187    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1188      control flux-form versus vector invariant code.
1189      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1190      or genmake -DISABLE ...
1191    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1192      (additional storing is now needed for case vecinv;
1193      currently nothing implemented to switch this storing off
1194      in case fluxform is used since no CPP flag available).
1195    
1196    checkpoint40pre7
1197    o bug fix in dynamics.F
1198      calc_viscosity called before k=1,Nr loop.
1199    o added some #ifdef's ALLOW_PASSIVE_TRACER
1200    o cleaned initialisations in ctrl_map_ini
1201      related to TAF
1202    
1203    checkpoint40pre6
1204    o split dynamics into thermodynamics & dynamics
1205    o corresponding split of calc_diffusivity into
1206      calc_diffusivity, calc_viscosity
1207      (kpp_calc_diff, kpp_calc_visc).
1208    o Added diffkr, kapgm to control variables
1209    o bug fix in gmredi_slope_limit for ldd97
1210    
1211    checkpoint40pre5
1212    o proper initialization of Adams-Bashforth time stepping
1213      + uses forward step for very first step of model (iter=0)
1214    o re-generated *all* output since almost all output is modified by this
1215      change (sorry but we've been putting this one off for about 2 years)
1216      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1217        *not* regenerated since they are already out of date and I don't
1218        want to create the impression that they are suddenly working.
1219    o removed KAP stuff for DEC's
1220    o modified/added many .cvsignore files in */code and */input
1221    o added new expt "solid-body.cs-32x32x1"
1222      + this uses an alternative form of ini_curvilinear_grid.F which
1223        is not necessarily any better than the current one...
1224    
1225    checkpoint40pre4
1226    o added re-initialisations of utrans,vtrans,rtrans in
1227      calc_common_factors which are crucial for TAF.
1228    o extended iMin,jMin range for calc_common_factors,
1229      calc_diffusivity
1230    o added option ALLOW_PASSIVE_TRACER
1231    o a few minor updates and fixes
1232    
1233    checkpoint40pre3
1234    o created calc_gtr1.F for gad package
1235    o split the_main_loop and re-introduced forward_step
1236    o some recomputations of nIter0 for TAMC
1237    
1238    checkpoint40pre2
1239    o Updated to latest branch of AJA, JMC
1240    o Added gradient check package
1241    o Added routines for passive tracer handling
1242    o Added carbon sequestration sensitivity experiment
1243    
1244    checkpoint39
1245     o Modifications and fixes to support TAMC
1246       (mainly missing or wrong directives)
1247     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1248       in addummy_in_stepping
1249     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1250     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1251     o Included following packages:
1252       cal: calendar
1253       exf: external forcing
1254       ecco: essential routines to control use of cal, exf
1255             (NB: this is not the full ECCO environment)
1256     o disabled some packages by default in genmake
1257    
1258    checkpoint38
1259     o see notes_c37_adj.txt
1260     o corrected wrong layer index in external_forcing_t
1261     o replaced the_main_loop/forward_step by the_main_loop
1262     o removed forceoutput from write_state
1263       (replaced criteria for initial/final state)
1264     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1265    
1266    checkpoint37
1267     o mdsio.F routine split and packaged in pkg/mdsio
1268       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1269        used unless genmake -disable=mdsio)
1270     o allow a more precise surface-geopotential gradient for the atmosphere
1271       taking into account the change in space of Alpha (=1/rho) at the surface.
1272     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1273       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1274     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1275       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1276       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1277     o Time-Average diagnostics defined as a pseudo package "timeave".
1278     o pickup files : old pickup (before c35) did not work with new code (c35
1279       and after) unless activating 2 commented lines in initialise-varia.
1280     o Non-Hydrostatic pickup file Pb fixed.
1281     o bug with Rigid-lid version (since c35) fixed.  
1282    
1283    checkpoint36
1284     o implement Crank-Nickelson barotropic time-stepping
1285     o recover Time-Average diagnostics
1286     o fix Pb in checkpoint (PR#19)
1287     o AIM become a standard package ; clean unused CPP_kees
1288    
1289    checkpoint35
1290     o subtantial rewrite of dynamics.f
1291     o allows staggered time-stepping
1292     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1293     o added bottom drag (linear + quadratic)
1294    
1295    checkpoint34
1296     o Modified exchange routines for correct reverse simulation.
1297     o Added verification output to comply with bug fix in impldiff.F
1298       as of c33 (exp2, natl_box).
1299     o Corrected store directives in dynamics.F
1300     o Corrected array boundaries in impldiff.F
1301     o Corrected array dimensions in gmredi.
1302       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1303     o Added routine GLOBAL_SUM_INT to global_sum.F
1304     o Added mdsio_gl.F for ECCO purposes.
1305    
1306    checkpoint33
1307     o Fixed bug in lower BC in impldiff.F
1308     o Fixed confusion about units of forcing arrays in FFIELDS.h
1309       namely Fu,Fv,Qnet,Qsw,EmPmR:
1310       - Removed verification/natl_box/code/external_fields_scale.F
1311         (did not differ from that in model/src)
1312       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1313         (see FFIELDS.h for description)
1314       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1315         kpp_calc.F and kpp_transport_t.F
1316       - Removed model/src/external_fields_scale.F and calls to it
1317       - verification/natl_box uses flux data with "atmospheric" sign so
1318         a special version of external_fields_load.F is used to
1319         change the data as it's read in. This way, the arrays
1320         have the right units and signs at all times tha a user could
1321         possibly use them.
1322     o Corrected genmake to delete a temporary file during configuration
1323    
1324    checkpoint32
1325     o Scaling of forcing fields moved from external_forcing.F to
1326       external_fields_scale.F, called directly after loading fields.
1327     o Surface relaxation terms added to surface tendency fields in
1328       extra subroutine.
1329     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1330       fields.
1331     o Changes in GMRedi to comply with packaging structure.
1332     o Modifications and bug fixes in KPP package.
1333     o Verification experiment for KPP added (verification/nat_box/)
1334    
1335    checkpoint31
1336     o Packages interface brought in line with defined standard
1337       -> new routines packages_...F
1338       -> changes in initialise_fixed.F, initialise_varia.F
1339       -> enables initialisation interface for ECCO package
1340     o Rescaling of external forcing fields immediately after read
1341       (removed from external_forcing.F)
1342       -> new: surface_fields_scale.F
1343       -> affects ini_foorcing.F, external_fields_load.F
1344     o Computation of surface tendencies before tendency updates.
1345       -> new: external_forcing_surf.F
1346     o Change of variable names useGMRedi, useKPP, useECCO
1347     o Further changes in dynamics.F, impldiff.F for TAMC
1348     o Tested for experiments 0, 2, 4.
1349       - not yet tested for GMRedi.
1350       - not yet tested for KPP.
1351    
1352    checkpoint30
1353     o Updates for OBCs
1354     o New experiment for test OBCs (internal_wave)
1355     o New output.txt in verification/exp4/results/
1356     o Updates for KPP: calculation of viscosity corrected, new variables
1357       kpp_dumpFreq and kpp_taveFreq
1358     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1359       and entry for T90 in genmake
1360    
1361    checkpoint29
1362     o packaged KPP and GM/Redi
1363    
1364    checkpoint28
1365     o Corrected initialization of hFacMin for difference vertical coordinates
1366     o Modified calculation of partial cell thickness to more robust algorithm
1367     o config_summary.F: replaced write_1D_... by write_0D_...
1368       read_write.F: added subroutines write_0D_...
1369     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1370       included some initialisations required for TAMC.
1371     o routine calc_isoslopes: modified sqrt computation to make it
1372       differentiable for zero argument.
1373     o routines dynamics, impldiff:
1374       included store directives and tape key computations required for TAMC.
1375     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1376    
1377    checkpoint27
1378     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1379       formulation works properly with variable resolution.
1380     o restructured the calling tree between the_model_main() and dynamics()
1381     o split initialise() into initialise_fixed() and initialise_varia()
1382     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1383       in new routine ini_psurf()
1384    
1385    checkpoint26
1386     o moved some #ifdef in optional routines to encompass everything
1387       except the argument declarations. This was using up some memory.
1388     o fixed macros like _ADT to work with both versions of Linux cpp
1389     o cleaned up some unused and uninitialized variables
1390       (helps when debugging with strict compile options)
1391     o split up CPP_EEOPTIONS.h into options and macros
1392       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1393     o patch for 2 processor JAM mode
1394    
1395    checkpoint25
1396     o updates for OBCs and NH
1397     o dramatically reduced memory usage
1398     o added "JAM" routines for use on Artic network
1399     o parameterization of convection by implicit vertical diffusion
1400     o added a diagnostic of convective index
1401     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1402       (this is was partly for OBCs and NH but also in anticipation of
1403        an explicit free-surface option)
1404     o initial state input files for U and V
1405    
1406    checkpoint24
1407     o Removed some spurious "REAL"s
1408     o Updated KPP to latest version from JPL
1409     o Added a COS(latitude) in horizontal viscosity
1410    
1411    checkpoint23
1412     o Added del^4 diffusion for salt and temperature
1413     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1414    
1415    checkpoint22
1416     o Made many small changes: implicit none, format(i5), etc...
1417     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1418    
1419    checkpoint21
1420     o Introduced new I/O package that supports direct-access records (mdsio.F)
1421     o Split-up mid-level I/O routines
1422     o Updated input data for experiments 0,1,2,4 and 5
1423     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1424    
1425    checkpoint20
1426     o Tidied up open-boundaries some more
1427     o Added non-hydrostatic code
1428     o Fixed some input data
1429     o Modified MPI start-up to work in "coupled" context.
1430    
1431    checkpoint19
1432     o Tidied up directory structure for verification experiments.
1433     o Added new code for open boundaries.
1434     o Corrected advective terms near boundaries.
1435     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1436     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1437     o Split default parameters out of ini_parms.F into set_defaults.F.
1438    
1439    checkpoint18
1440     o Further changes for optional code generation with
1441       CPP - ugh!
1442    
1443    checkpoint17
1444     o Beginning to incorporating modularity
1445       for supporting atmos. and ocean configs.
1446     o Small changes for TAMC complinace
1447     o New ultra simple test case. Barotropic box
1448       configuration "exp0".
1449    
1450    checkpoint16
1451     o Minor changes to exchange routines to support
1452       accumulation in reverse mode. Adjoint of an
1453       assignment is an addition.
1454     o Changes to support compilation by TAMC (LR(1)
1455       syntax) and by g77 under Linux ( 72 character
1456       limit ).
1457    
1458    checkpoint15
1459     Rewrote exchange routines to allow
1460     o General tile <-> tile connectivity.
1461     o TAMC reverse mode flag ( is this really needed? )
1462     o Variable width overlap and exchange region widths.
1463     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1464       shmput/shmget, VIA, SYSV shmem and every other cool
1465       communication method.
1466    
1467    checkpoint14
1468     Consistent isomorphism chages made. These allow dynamical core
1469     to support both pressure and meters as a vertical coordinate.
1470    
1471    checkpoint13
1472     Release which corrects global_max problem and a couple
1473     of KGM time-averaging diagnostic errors. Also contains
1474     a double-gyre experiment setup as well as the baseline
1475     4 degree global template. The double gyre template is
1476     organised to allow it to be applied automatically to
1477     the baseline configuration.
1478    
1479    branch-point-rdot
1480     A few tidy-ups have been made bt the real point of this
1481     check-point (excuse the pun) is to allow a branch to be
1482     made for the purposes of adding the rDot alterations.
1483     I don't want to commit the rDot to the main-trunk until
1484     we've actually tested it...
1485    
1486    checkpoint12
1487     Tidy up and added generic genmake script (formerly
1488     configure script).
1489     Released to testers.
1490    
1491    checkpoint11
1492     Re-arranged initialise() and introduced ini_vertical_grid()
1493     and ini_masks_etc().
1494    
1495    checkpoint10
1496     Introduced the configure script.
1497     Separated out the diags package.
1498     Added template for writing time-averages of tile/intermediate quantities.
1499     Updated SIZE.h in exp2 and made the data big-endian.
1500    
1501  checkpoint9  checkpoint9
1502   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
1503   General tidy-up.   General tidy-up.

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