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revision 1.18 by adcroft, Tue Dec 15 21:01:56 1998 UTC revision 1.237 by afe, Fri Jan 9 21:29:24 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52f_pre
7    o added exch2 cube routines to pkg/exch2
8    o modified hs94.cs-32x32x5 to use it
9    o added new grid files to hs94.cs-32x32x5
10    checkpoint52f_post
11    
12    checkpoint52e_post
13    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
14      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
15    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
16      to work with implicit vertical advection and AB ;
17    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
18    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
19     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
20    checkpoint52e_pre
21    
22    o fix bug in impldiff when Nr=1 or Nr=2.
23    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
24    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
25    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
26      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
27    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
28    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
29    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
30    
31    checkpoint52d_post
32    o re-tiled many expts to allow comparison in multi-processor mode
33      - updated output accordingly
34      - changed hs94.128x64x5 to use intial T from file rather than use the
35        random number generator
36    o add infrastructure in model routines for fizhi and gridalt packages
37    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
38    o changes to permit hi-res, cubed-sphere, configuration
39      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
40      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
41      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
42        of surface winds for the cube
43      (A verification experiment, based on global_ocean.cs32x15, but with
44       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
45       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
46       complete with example surface forcing files and matlab scripts to look
47       at the output and compare it with that of global_ocean.cs32x15.)
48    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
49       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
50       to conform to the common rule.
51    o check-in the first version of the coupler + interfaces for multi-components
52       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
53       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
54       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
55       - ocean and atmos. share the same horizontal grid (no interpolation).
56       - exchanges between component and coupler is done in forward_step
57    o new verification experiment, cpl_aim+ocn:
58       coupled ocean - AIM atmosphere on cs32 grid.
59    
60    checkpoint52d_pre
61    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
62    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
63    
64    checkpoint52c_post
65    o Fixing OPTIONS files for use of exf:
66      - ALLOW_ECCO not needed
67      - ECCO_CPPOPTIONS.h should not be included from
68        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
69        as has been the case in the past
70      - All cal/exf related options are currently set in
71        single header file. Should remain so until we
72        agree on a consistent new policy.
73    o Removed all CPP options for cal package.
74      cal has no more CPP options.
75    o modified STOREs in GAD_ADVECTION
76    o corrected key comp. for passkey
77    
78    checkpoint52b_post
79    o new version: "thsice" of thermodynamic sea-ice pkg:
80     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
81     - modify fluxes but do not change theta directly;
82     - light cleaning of bulk_force pkg (still needed with thsice).
83     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
84       + output_thsice.txt to test thsice & bulk_force pkgs.
85    o put back grid & coriolis monitor output.
86    checkpoint52b_pre
87    
88    o call "do_the_model_io" at the beginning (=> dump initial state)
89    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
90    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
91      (need info on NUMBER_OF_PTRACERS)
92    o missing PTRACERS headers in some routines
93    o default tamc.h in pkg/autodiff supposed to crash
94      to ensure proper customization
95    
96    checkpoint52a_post
97    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
98      - moved surfaceTendencyTice from pkg/seaice to main code
99      - subroutine FREEZE_SURFACE now limits only surface temperature
100        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
101        => new output.txt for global_ocean.cs32x15 & global_with_exf
102      - keep the old version of FREEZE for backward compatibility;
103        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
104      - corresponding modifs for TAF directives
105    o added surface flux output variables to TIMEAVE_STATVARS
106    o time-averaged output for pkg/ptracers
107    o fix problem with ECCO-related divided adjoint
108      snapshot file was missing some ad-variables,
109      but no warning issued by TAF
110    
111    checkpoint52a_pre
112    o some bug fixes for #undef REAL4_IS_SLOW
113    
114    checkpoint52 = ecco_c52_e35
115    o after testing adjoints of checkpoint51u_post
116    
117    checkpoint51u_post
118    o this is the post-merge tag of the ecco-branch
119      (needs another clean checkout and re-testing)
120    o various natl_box_adjoint configs and results
121      but no input fields
122    o obcs adjoint not yet merged!
123    o adding ECCO global 1x1 and 2x2 degree configs
124    o updated/extended some store directives for seaice
125    o pkg/ecco now containes ecco-specific part of cost function
126    o top level routines the_main_loop, forward_step
127      supersede those in model/src/
128      previous input data.cost now in data.ecco
129      (new namelist ecco_cost_nml)
130    o in ctrl/ cleaned some cross-dependencies and updated CPP options
131    
132    checkpoint51t_post
133    o this is the pre-merge tag of the ecco-branch
134    
135    checkpoint51s_post
136    o cleanup: removed various obsolete #define-s
137    o pkg/grdchk
138      - renamed 'ph-grd 3' to 'grad-res'
139      - merged from ecco-branch
140        (remaining bug fixes for obcs gradient checks)
141      - additional high-precision output for testreport
142        (grep for 'precision_grdchk_result')
143    
144    checkpoint51r_post
145    o cleaned up or removed CPP_OPTIONS.h files
146    o updated results for some of the tests to reflect the new
147      optfiles (-ieee: -O0 instead of -O3)
148    
149    checkpoint51q_post
150    o cd_code:
151      - moved cd_scheme.F -> cd_code_scheme.F
152      - separate read_checkpoint from cd_code_ini_vars.F
153      - separated cd_code part from write_checkpoint
154      - updated AD_SOURCE, generated .flow
155      - added CD_CODE_VARS.h to the_main_loop
156      - Moving cd_code specific store dir.s to pkg/cd_code
157    o ctrl package totally restructured
158      - pack/unpack now optional and decoupled from
159        xx_/adxx_ I/O
160      - ctrl_pack/unpack cleaned
161        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
162      - confined inclusion of AD_CONFIG.h to where necessary.
163    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
164    
165    checkpoint51p_post
166    o create initial cd_code package
167      - WARNING: the initialization of fields within packages
168        is broken because INI_FIELDS (where READ_CHECKPOINT is
169        called) is called *before* PACKAGES_INIT_VARIABLES.
170        This seems to be backwards since
171        1) its important to initially zero the entire field including
172           the "halo" region
173        2) zeroing needs to be done *before* reading pickup info
174           and the pickup call might or might not happen in any
175           particular run
176      - this needs an overhaul for R2
177    o cleanup verification/*/code/GMREDI_OPTIONS.h
178    o cleanup testreport
179    
180    checkpoint51o_post
181    o bringing AD-related verif's up to date with genmake2
182      - carbon/
183      - global_ocean.90x40x15/
184      - hs.94.1x64x5/
185      - (front_relax/ )
186    o (more) consistent directory structure for AD-related verif.'s
187    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
188    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
189    o bug fix in find_alpha.F for MDJWF:
190      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
191        change rho -> rho-rhoConst
192      - replace call find_rho to find_rhonum
193    o initialisation of rFlx extended to full array (required by TAF)
194      and shifted to thermodynamics
195    o removed PTRACERS.h in ptracers routine
196    o added surfacetendencyPtr to S/R parameter list pracers_forcing
197    o Correcting initialisations for fVerU, fVerV.
198    o helping TAF to recognize dependency on kUp for
199      fVerU, fVerV
200    o Replacing delZ by delR in pkg/ctrl/
201    checkpoint51o_pre
202    
203    o undid all of cp51 pending some cleanups and discussion
204    o added the [#include "AD_CONFIG.h"] statement to all files that need
205       it for adjoint/tl #defines
206     o re-worked the build logic in genmake2 to support AD_CONFIG.h
207     o removed tools/genmake since it no longer works
208    
209    checkpoint51n_post
210    o modifications to make FREEZE flux visible to pkg/kpp
211      - moved surfaceTendencyTice from pkg/seaice to main code
212      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
213      - subroutine FREEZE now limits only surface temperature
214        (this means new output.txt for global_ocean.90x40x15,
215         global_ocean.cs32x15, and global_with_exf)
216    o added surface flux output variables to TIMEAVE_STATVARS
217    
218    checkpoint51n_pre
219    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
220    o added [#include "AD_CONFIG.h"] to all files that use the following
221      defines:
222      - ALLOW_ADJOINT_RUN
223      - ALLOW_TANGENTLINEAR_RUN
224      - ALLOW_ECCO_OPTIMIZATION
225    
226    checkpoint51m_post
227    o incorporating changes to get TAMC/TAF working in genmake2
228      - added new TAMC/TAF targets to the Makefile
229      - various cleanups related to package handling
230      - these changes should have no impact on the forward model
231    
232    checkpoint51l_post
233    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
234     - faster algorithm for cal_addtime.F
235     - higher precision arithmetic, where needed
236     - pkg/exf *startdate variables changed from calendar date to
237       model integration time
238    
239    checkpoint51l_pre
240    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
241    o enable to apply restoring on S & T only in a latitude band.
242    o update output (external_forcing_surf modif. change truncation errors)
243       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
244    
245    checkpoint51k_post
246    o change default to: useNHMTerms=.FALSE.
247     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
248       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
249     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
250        exp1, ideal_2D_oce
251     - change data file of oceanic exp (leave the results unchanged for now)
252       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
253    o set gravitySign automatically according to the vertical coordinate used
254      (and change sign: back to "logical" value: +1 when R increases downward)
255    o added an include barrier to the default CPP_OPTIONS.h and
256      removed the #include "PACKAGES_CONFIG.h" from it
257    o fix a bug in mom_fluxform (from chk51j_post)
258    
259    checkpoint51j_post
260    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
261    o adjusted some flow directives (dynamics, thermodynamics)
262    o added cubed-sphere case to test cost function
263    o heckpoint_lev?_directives.h now include
264      pkg-specific directives, whenever those are enabled.
265    o Moving pkg-specific flow directives to corresponding pkg
266      Moving pkg-specific differentiation list to corresponding pkg
267      Moving pkg-specific checkpoint-lev storing to corresponding pkg
268      ---> conventions are
269           - pkg_ad.flow
270           - pkg_ad_diff.list
271           - pkg_ad_check_lev?_dir.h
272    
273    checkpoint51i_post
274    o merge of the branch-genmake2
275      - knowingly breaks the older genmake
276      - automatic generation of all ALLOW_${PKG_NAME} defines
277      - new testreport supersedes older testscript
278    o large number of package inclusion and header cleanups
279    checkpoint51i_pre
280    
281    o new output for adjoin of global ocean vector invariant
282    o fix for checkpoint of thermodynamic seaice and bulk_force
283    o Steph gchem various cleanups
284    
285    checkpoint 51h_pre
286    o fixed some single quotes
287    o modify gchem pkg to be more versatile
288    o modifications to clean up dic pkg
289    o add pkg/cfc
290    
291    checkpoint51g_post
292    o provide links for ARPACK and ADM*TLM
293    o start removing verification/vero/
294    o update AD-related stuff
295      (in particular some IF-statements in model/src/ routines)
296    o adding to verification/global_ocean.90x40x15/ adjoint of
297      vector invariant setup
298    
299    checkpoint51f_post
300    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
301    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
302      of tracer Green's fucntions for ocean inversion project.
303    
304    checkpoint51f_pre
305    o Added on-the-fly spatial interpolation capability
306        "USE_EXF_INTERPOLATION" to pkg/exf.
307      - This is a temporary Cartesian-grid hack until
308        the super-duper ESMF coupler becomes available.
309      - See verification/global_with_exf/README for usage example.
310      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
311        flags and modified pkg/seaice accordingly.
312    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
313        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
314        non-local transport term.
315    
316    checkpoint51e_post
317    o pkg/mom_vecinv:
318      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
319      - add time-ave diagnostic of vorticity advection.
320    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
321    o atmospheric geopotential: - include water vapor effect;
322                                - use p^kappa in p* scaling.
323    o land pkg: read initial state from files.
324    o AIM : add stratospheric drag in the upper level
325    
326    checkpoint51d_post
327    o change function ILNBLNK (=> last non-blank char.) to return zero
328      (instead of the string length) when the string. char is empty
329    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
330    o modif's to restore TAMC compatibility
331      - avoid "_d" constructs in PARAMETER declarations
332      - avoid interrupting lines by comment lines
333    o Use cluster local disks for purely local I/O
334      vs. globally visible disks needed for ctrl stuff
335      (merged from ecco-branch)
336      - new active_file_loc... and mdsio_..._loc routines
337      - affected packages: autodiff, ctrl, grdchk, mdsio
338    
339    checkpoint51c_post
340    o introducing integer flag debugLevel
341      - debLevZero: suppress all output
342      - debLevA: standard
343      - debLevB: equivalent to current debugMode=.TRUE.
344    o introducing pathname variable mdsioLocalDir for mdsio
345      that can be specified at runtime
346      (relevant for cluster I/O to local disk)
347    `
348    >>>checkpoint51b_post
349    adjoint of ptracers
350    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
351    o extended state in checkpoint_lev?, etc.
352    o alternative ctrl/cost with tr1 or ptracer
353    o new comlev1_bibj_ptracers
354    o new ptracers.flow
355    o made ptracers_forcing same as external_forcing_s
356    o added verification for adjoint with ptracers
357      - adm. grdchk fail so far
358      - tlm. grdchk OK
359      - checked tapelev/comlev recomputations: OK
360    <<<checkpoint51b_pre
361    
362    checkpoint51a_post
363    o added code for biogeochemistry package
364      - new pkgs: dic, gchem
365      - new subroutine in ptracers
366    o modify code for biogeo packages
367      - in model/src and pkg/ptracers
368    
369    checkpoint51
370    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
371      - autodiff, ctrl, exf, grdchk, seaice
372      kept separate packages
373      - cost, ecco, obcs
374    o updating verification/internal_wave, verification/lab_sea
375      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
376    
377    checkpoint50i_post
378    o Preparing next differentiable checkpoint and sync
379      of MAIN vs. ecco-branch
380      - 1st step: this one is differentiable
381      - 2nd step: next(! not this) checkpoint will have updated packages
382                  from ecco-branch)
383    
384    checkpoint50h_post
385    o new package "land": provide surface BC for AIM.
386    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
387    o AIM: use true log-P extrapolation for near surface temp (= as in
388        F.Molteni paper) ; update aim.5l_cs output.
389    o New variable in PARM03 for more flexible pickups
390    o somewhat cleaned package initialisation sequence for
391      ctrl/ cost/ ecco/ in packages_... routines
392    
393    checkpoint50g_post
394    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
395      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
396      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
397        made the default because of faster convergence than ADI
398    
399    checkpoint50f_post
400    o exf totally restructured
401      - replaced all exf_set_ routines by one generic exf_set_gen.F
402        and made sure it's still differentiable
403      - split exf_getffields.F into new exf_bulkformulae.F
404      - exf_inscal_/exf_outscal_ suffixes consistent with field names
405      - updated adjoint/makefile and relevant verif. accordingly
406    
407    checkpoint50f_pre
408     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
409          + change Evap over land. (update aim.5l_cs output)
410     o added missing .cvsignores and made uniform across expts
411     o changed configuration of tidal_basin_2d expt
412     o added pkg/debug functions for tracing code in fatal crashes
413     o tidied pkg/monitor to use MONITOR_OPTIONS.h
414     o new fn in pkg/monitor to stop model if solution grows too big
415     o removed lots of single quotes from comments
416    
417    checkpoint50e_post
418    o make KPP work with PTRACERS
419     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
420       nearly a copy of kpp_transport_s
421     - there is no analogue to SurfaceTendencyS, so I have to use
422       gPtr(of the surface layer) instead
423    o add a new platform SunFire+mpi (SunFire 15000) to genmake
424    checkpoint50e_pre
425    
426    checkpoint50d_post
427    o change kpp output from multiple-record state files to single-record state
428      files analogous to write_state.F
429    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
430      analogous to the cg2d-related output.
431    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
432      so that writing to internal file fn (with length 512) fails.
433    checkpoint50d_pre
434    
435    checkpoint50c_post
436    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
437    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
438    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
439    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
440    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
441    
442    checkpoint50c_pre
443    Merging from release1_p13:
444    o bug fix for pkg/seaice dynamic solver
445    o Added SEAICE_initialHEFF to pkg/seaice
446    
447    checkpoint50b_post
448    o store u*,v* in gU,V instead of in guNm1,gvNm1
449    o in order to put the momForcing out of the Adams-Bashforth:
450      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
451      to timestep.F
452    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
453    o re-generate output for highly sensitive test-exp:
454       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
455    
456    checkpoint50b_pre
457    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
458    o corrected CPP option mismatch in exf_Bulk... functions for case
459      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
460    
461    checkpoint50a_post
462    o Bug fix for merging between c50 and KPP.
463      ikey was passed from thermodynamics to kpp_calc via
464      common block rather than being recomputed in kpp_calc,
465      in contradiction with new key itdkey.
466      New key ikppkey created, and tamc.h headers updated.
467    
468    checkpoint50
469    - 2nd step of merge with ecco-branch:
470      merge changes in ecco-branch back into main trunk
471    - bug fix in find_alpha
472    - more storing in gmredi_calc_tensor.F, kpp_routines.F
473    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
474    - merged some sliced AD support routines
475    
476    checkpoint49
477    merged from ecco-branch:
478    o exf:
479      - Enable initialisation of forcing fields to constant
480        (runtime) values.
481      - in exf_getffields.F
482        Reduce i-/j-loop to interior domain, discarding overlaps.
483        That also fixes wrong TAF-key computations for key_1, key_2
484        with bulf formulae.
485      - exf_init.F modify #ifdef for exf_init_evap
486      - exf_getffieldrec.F, ctrl_getrec.F
487        The following INT-usages are not safe:
488          fldsecs  = int(fldsecs/fldperiod)*fldperiod
489          fldcount = int(fldsecs/fldperiod) + 1
490        and were modified.
491    o autodiff: checkpoint_lev...
492      - updated storing for bulk formulae (some arrays were missing)
493      - added state for seaice package
494      - synchronized with main branch
495    o DIVA:
496      Modif.s in
497      - the_main_loop.F
498      - the_model_main.F
499      and added cost_final_restore.F cost_final_store.F
500      o With these changes, it is possible to fully separate
501        the first forward run to compute the cost function (mdthe_main_loop)
502        and adjoint runs over individual DIVA intervals (adthe_main_loop)
503        into separate model executions.
504        This enables better tuning of DIVA to given queue sizes.
505      o Loss of cost function value in consecutive DIVA runs is
506        fixed by storing to 'costfinal' file.
507      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
508        beginning/end of adjoint integration is accounted for.
509      The current changes apply to TAF-1.4.26.
510      TAF has one remaining bug, requiring one manual change
511      (see MITgcm manual).
512    o cal: synchronized between MAIN and ecco-branch
513    
514    checkpoint48i_post
515    o Changes to restore differentiability of code w.r.t. previous tag
516      (mostly adding new routines to make list and replacing
517      pressure by totPhiHyd).
518    o Updated and merged grdchk package
519      - has both ADM and TLM checks
520      - works for single- and multi-proc.
521      - output cleaned
522      - worked successfully for parallel DIVA
523    o genmake:
524      - Adding -platform=SP4
525      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
526    o Modif. for DIVA:
527      ctrl_unpack should not be called in intermediate DIVA interval.
528      (similar thing would apply for active files such as
529      tbar, sbar, psbar, which should not be reinitialised;
530      only relevant for ecco-branch)
531    
532    checkpoint48h_post
533    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
534    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
535    o Added SEAICE_initialHEFF to pkg/seaice
536    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
537    
538    checkpoint48g_post
539    --- EOS:
540    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
541      store total Potential in totPhyHyd for diagnostics & EOS.
542    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
543    --- Pressure/geopotential gradient:
544    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
545    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
546      ( changes results of global_ocean_pressure )
547    o NLFS + z-coord.: add eta*Rho' contribution.
548    o accurate phiHyd when using interface-W at the middle between 2 centers
549     ( changes results of ideal_2D_oce )
550    o includes r* 2nd term in potential gradient.
551    
552    checkpoint48f_post
553    Merging from release1_p12:
554    o Modifications for using pkg/exf with pkg/seaice
555      - improved description of the various forcing configurations
556      - added basic radiation bulk formulae to pkg/exf
557      - units/sign fix for evap computation in exf_getffields.F
558      - updated verification/global_with_exf/results/output.txt
559    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
560      (SBO) core products, including oceanic mass, center-of-mass,
561      angular, and bottom pressure (see pkg/sbo/README.sbo).
562    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
563      to avoid negative values in shallow regions.
564      - updated verification/natl_box/results/output.txt
565      - updated verification/lab_sea/results/output.txt
566    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
567    o Added useSingleCpuIO option (see PARAMS.h).
568    o Updated useSingleCpuIO option in mdsio_writefield.F to
569      work with multi-field files, e.g., for single-file pickup.
570    o pkg/seaice:
571      - bug fix in growth.F: QNET for no shortwave case
572      - added HeffFile for specifying initial sea-ice thickness
573      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
574    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
575      kpp_transport_t.F, forward_step.F, and the_main_loop.F
576    o pkg/seaice:
577      - adjoint-friendly modifications
578      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
579    
580    checkpoint48e_post
581    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
582    o dynamics: change definition of computational domain & adapt mom_fluxform
583      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
584    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
585        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
586        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
587        global_ocean.90x40x15 global_with_exf global_ocean_pressure
588        inverted_barometer solid-body.cs-32x32x1
589      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
590    
591    checkpoint48d_post
592    o in preparation for r*:
593     a) use pre-computed gradient of hydrostatic potential:
594        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
595     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
596        => affects results of glob_oce_pressure (different truncation error)  
597      update output.txt of ideal_2D_oce & global_ocean_pressure
598    
599    checkpoint48d_pre
600    o in preparation for r*:
601      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
602      pass the 2 comp. of the grad. as arguments to momentum S/R.
603      but for the moment, only used if it does not change the results.
604    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
605    
606    checkpoint48c_post
607    Modifications in treatment of initial flux forcing controls
608    to avoid extra storing of flux fields.
609    
610    checkpoint48c_pre
611    o Added tidal_basin_2d experiment (currently 1D!)
612    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
613    
614    checkpoint48b_post
615    o r* coordinate added in #ifdef NONLIN_FRSURF block.
616     (modification to pressure gradient not yet implemented)
617    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
618      (for U & V) that are used for vertical advection of momentum.
619    
620    checkpoint48a_post
621    o In preparation for r*, use temp. array to compute vertical transport
622       in flux-form momentum pkg. => change results of few test-exp.
623      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
624                        lab_sea, natl_box & plume_on_slope
625    
626    checkpoint48
627    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
628    
629    checkpoint47j_post
630    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
631    o moved adexch from forward_step to addummy_in_stepping
632    o added exch in ctrl_map_...
633    o aveFreq.=0. at end of cost_final to avoid overwrite in
634      reverse checkpointing loop
635    o Yet more changes in gmredi:
636      * adgmredi_calc_tensor
637        avoiding all recomputation of gmredi_slope_limit
638      * adgmredi_x/y/rtransport
639        added flag for excessive storing to avoid recomp. of
640        u/v/rtans, dTdx/y/z
641        -> this is not really necessary and very memory-consuming
642      * adgmredi_slope_psi:
643        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
644      * gmredi_slope_limit
645        re-activated full calculation of taperfct for case 'ac02'
646    o updating verification/ adjoints of carbon, global_ocean.90x40x15
647    
648    checkpoint47i_post
649    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
650    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
651      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
652    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
653    o gmredi: fix few bugs.
654    
655    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
656    This will be a good checkpoint to plug into the ecco-branch.
657    o few modif.'s to get latest version adjointed
658      (mainly kick out code in ini_linear_phisurf)
659    o modif's to run adjoint with exactConserv
660    o case GM_BOLUS_ADVEC should be cleaned
661      S/R gmredi_slope_psi should be cleaned
662    o verification/carbon now has exactConserv=.TRUE.
663    
664    checkpoint47g_post
665    o time-average AIM output: becomes independent from statvars time-average
666      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
667    o After TAF bug fix:
668      Tested adjoint of gmredi package.
669      Tests were done with checkpoint47 rather than with latest
670      checkpoint47f_post since the latter is broken for the adjoint
671      verification/carbon/ contains both ADM and TLM gradient checks.
672    Here they are, before they get changed/lost/stolen.
673    Mostly modif.'s to fix numerical sensitivities.
674    Gradient checks OK for
675    - GM_taper_scheme:
676      * clipping
677      * ac02
678      * linear
679      * glw91
680      * dm95
681      * ldd97
682    - GMREDI_OPTIONS:
683      * GM_VISBECK_VARIABLE_K
684      * GM_NON_UNITY_DIAGONAL
685      * GM_EXTRA_DIAGONAL
686      * GM_BOLUS_ADVEC
687    in conjunction with data.gmredi parameters to be checked in
688    in a few minutes under verification/carbon/code/
689    
690    checkpoint47f_post
691    Merging from release1_p10:
692    o modifications for using pkg/exf with pkg/seaice
693      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
694        and SEAICE_EXTERNAL_FLUXES
695      - pkg/exf CPP options EXF_READ_EVAP and
696        EXF_NO_BULK_COMPUTATIONS
697      - usage examples are Experiments 8 and 9 in
698        verification/lab_sea/README
699      - verification/lab_sea default experiment now uses
700        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
701    
702    checkpoint47e_post
703    o created a tag prior to creating a branch
704    
705    checkpoint47d_post
706    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
707      at the bottom boundary had an erroneous half slip boundary condition
708    o added bottom drag and no slip boundary condition capabilities to
709      oceanic pressure coordinates code
710    o added new verification experiment global_ocean_pressure, this experiment is
711      also described in the tutorial section of the manual
712    checkpoint47d_pre
713    
714    checkpoint47c_post
715    o Added a verification experiment for a global cubed-sphere ocean run
716      -  verification/global_ocean.cubed32x32x30
717      -  uses pkg/therm_seaice and pkg/bulk_forcing
718    
719    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
720    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
721      when using P-coordinate; only implemented for atmospheric config.
722    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
723      NOTES: requires option NONLIN_FRSURF to be "#define".
724    o update advect_xz/results/output.txt (left from checkpoint44g_post)
725    
726    checkpoint47b_post
727    Merging from release1_p9:
728    o pkg/seaice
729      - removed GOTO's and added taf directives
730      - double precision constants to reduce the g77 (Linux)
731        to F77 (SGI) differences reported in release1_p8
732    o tools/genmake
733      - added SGI options
734    o verification/testscript
735      - updated to that of checkpoint47a_post
736    o verification/global_ocean.90x40x15/input/eedata
737      - modified for SGI f77 compatibility
738    o verification/lab_sea
739      - added description of sea-ice model
740      - added missing matlab routines
741      - added test of thermodynamics parallelization
742    
743    checkpoint47a_post
744    o new pkg: aim_v23
745     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
746       for now, keep the same surface forcing as before.
747     - Part-Cell implemented into AIM; check that Heat & Water are conserved
748     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
749     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
750    o add diagnostic of surface correction term in monitor output
751    
752    o bulk_force and therm_seaice
753    - Two packages:  bulk_force (Bulk forcing)
754      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
755    - Earlier integration from Stephaine Dutkiewicz
756      and Patrick Heimbach.
757    - Two ifdef statements for compile time,
758       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
759    
760    checkpoint47
761    differentiable version of checkpoint46n_post
762    o bug fix in quasihydrostaticterms
763    o * "clean" adjoint code (in terms of extensive recomputations)
764        can now be obtained for all GMREDI options (i.e. for
765        - GM_VISBECK_VARIABLE_K
766        - GM_NON_UNITY_DIAGONAL
767        - GM_EXTRA_DIAGONAL
768        - GM_BOLUS_ADVEC )
769      * However, wrong gradient check problem remains unsolved.
770      * New CPP options have been introduced for different
771        tapering schemes
772    o external_fields_load now part of differentiation list
773    o pressure needs multiple storing;
774      would be nice to have store_pressure at beginning or
775      end of forward_step, e.g. by having phiHyd global (5-dim.)
776      (NB: pressure is needed for certain cases in find_rho,
777      which is also invoked through convective_adjustment).
778    o recomputations in find_rho for cases
779     'JMD95'/'UNESCO' or 'MDJWF' are OK.
780    o #define ATMOSPHERIC_LOADING should be differentiable
781    o ini_forcing shifted to begining of initialise_varia
782    o Incorporating QNVS line search routines into MITgcm
783      (this is separate code, and therefore not under pkg)
784      lsopt/, optim/
785    o Updated verification/carbon/
786      - #define GM_VISBECK_VARIABLE_K
787      - GM_taper_scheme    = 'ldd97'    
788    
789    checkpoint46n_post
790    Merging from release1_p8:
791    o verification/natl_box:
792      updating new external_fields_load routine
793    o New package: pkg/seaice
794      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
795      The sea-ice code is based on Hibler (1979-1980).
796      Two sea-ice dynamic solvers, ADI and LSR, are included.
797      In addition to computing prognostic sea-ice variables and diagnosing
798      the forcing/external data fields that drive the ocean model,
799      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
800      The implied surface heat flux is then stored in variable
801      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
802      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
803      non-local transport term.  Because this call precedes model
804      thermodynamics, temperature under sea-ice may not be "exactly" at
805      the freezing point by the time theta is dumped or time-averaged.
806      N.B.: fairly large differences in accuracy occur across
807            different platforms/compilers; comparison between
808            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
809            generated output gives:
810       T           S           U           V
811      C D M    c        m  s        m  s        m  s        m  s
812      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
813      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
814      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
815    
816      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
817    o GAD:
818      - generated new common blocks to account for call of
819        same gad routines with differing traceridentities
820        (needed to modify tracerIdentity indices in GAD.h)
821      - generated separate common blocks for case useCubedSphereExchange
822        (Department of Futurology)
823      - parameter lists to gmredi_?transport: added tracerIdentity
824      - added new key indices to tamc.h
825    o external_fields_load:
826      - added this routine to TAF list
827      - needed to make some common blocks global and additional storing
828        along the same lines as exf package (checkpoint_lev?_directives.h)
829    o exf:
830      updated external forcing package
831      - bug fixes carried over from ecco-branch
832        (missing OBCS_OPTIONS.h in two routines)
833      - enable easy to use "no forcing".
834      - added exf I/O for atmospheric loading
835      - added exf I/O for runoff data
836      - transfered scaling between exf <-> MITgcm to exf namelist
837    o Adding new verification experiment global_with_exf.
838      This verification experiment is almost identical to the
839      global_ocean.90x40x15 experiment, except that it uses
840      the exf (and cal) package instead of the
841      external_fields_load routine (cf README file).
842    
843    checkpoint46m_post
844    o modified testscript to return -- when there are no lines of "%MON" output
845    o added new flag "quasiHydrostatic" for QH mode
846      and new routine quasihydrostaticterms()
847    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
848      New routine: mom_u_coriolis_nh()
849    o fixed sign of non-hydrostatic metric terms in u and v equations.
850      Depend on correct sign of gravitySign.
851    o added work.pc* to .cvsignore in aim directories using ifc
852    o introduced flag for controllin non-hydrostatic metric terms
853    o removed gravitySign from PARM04
854    o switched to g77/ifc from pgf77 in aim experiments
855    
856    checkpoint46l_post
857    o made convective adjustment work with pressure coordinates:
858     - changed the direction of k-loop in convective_adjustment.F for the
859       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
860     - adjusted the reference pressure k-index in convective_adjustment.F
861     - adjusted the convection condition in convect.F (in analogy to
862       calc_ivdc.F)
863     - convective_adjustment no longer computes anything on the halos
864     - removed the warnings about negative salinity from find_rho.F and
865       find_alpha.F; instead the new routine look_for_neg_salinity, called
866       at the beginning of find_rho, find_alpha, and find_beta, does a
867       check of the entire slice, if CPP-option
868       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
869    checkpoint46l_pre
870    
871    checkpoint46k_post
872    o fixed the verification/global_ocean.90x40x15 experiment:
873     - new bathymetry (the world according to A., JMC, and M.)
874     - new initial fields and forcing fields (*.bin files)
875     - new POLY3.COEFFS (for the next release one should switch to a full
876       equation of state: JMD95P or MDJWF)
877     - fixed several errors and redundancies in the data file
878     - experiment uses looped cells
879     - added matlab directory with diagnostic scripts for plotting of output
880    
881    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
882     - read AIM physics parameters from a file (data.aimphys)
883     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
884    
885    checkpoint46j_post
886    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
887    o move wVel computation at the end of the time step, in S/R integr_continuity
888    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
889    o update timeave pkg for wVel diagnostic.
890    checkpoint46j_pre
891    
892    checkpoint46i_post
893    o Clean up AIM package (and keep the results unchanged):
894      include CPP_OPTION and use IMPLICT NONE in all routines ;
895      declare all the variables _RL ; use _d 0 for all numerical constants.
896      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
897    
898    checkpoint46h_post
899    o cleaned up the use of rhoNil and rhoConst.
900      - rhoNil should only appear in the LINEAR equation of state, everywhere
901        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
902        and the dynamical equations are all divided by rhoConst
903    o introduced new parameter rhoConstFresh, a reference density of fresh
904      water, to remove the fresh water flux's dependence on rhoNil. The default
905      value is 999.8 kg/m^3
906    o cleanup up external_forcing.F and external_forcing_surf.F
907      - can now be used by both OCEANIC and OCEANICP
908    checkpoint46h_pre
909    
910     Added code to convert surface volume flux (fresh water) into
911     a mass flux when using P coordinates in the ocean (OCEANICP).
912     Note: It assumes you have set rho0=rhoConst=density of fresh water.
913    
914    checkpoint46g_post
915    o Include a new diagnostic variable phiHydLow for the ocean model
916      - in z-coordinates, it is the bottom pressure anomaly
917      - in p-coordinates, it is the sea surface elevation
918      - in both cases, these variable have global drift, reflecting the mass
919        drift in z-coordinates and the volume drift in p-coordinates
920      - included time averaging for phiHydLow, be aware of the drift!
921    o depth-dependent computation of Bo_surf for pressure coordinates
922      in the ocean (buoyancyRelation='OCEANICP')
923      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
924        Theta, Salinity, and Pressure in the parameter list. This routine is
925        presently contained in find_rho.F. This routine does not give the
926        correct density for 'POLY3', which would be a z-dependent reference
927        density.
928    o cleaned up find_rho
929      - removed obsolete 'eqn' from the parameter list.
930    o added two new verification experiments: gop and goz
931      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
932    checkpoint46g_pre
933    
934    checkpoint46f_post
935    o Enable tangent linear (forward mode) gradient checks:
936      - extended active file handling to g_... files
937      - added TANGENT_SIMULATION to theSimulationMode
938      - extended grdchk package accordingly
939    o added tangent linear setup in verification/carbon/code_ftl
940    o added adjoint setup in verification/front_relax/code_ad
941    
942    checkpoint46e_post
943    o Added new equation of state -> MDJWF
944      - EOS of McDougall et al., 2002, JAOT, submitted
945      - caveat: the equation of state is only valid for a smaller (more
946        realistic?) range of values than JMD95P/Z and UNESCO
947      - added masks to the calculation of pressure in store_pressure
948      - added more check values for density in check_eos (ini_eos.F), some of
949        the old check values are out of the range of the MDJWF-eos, so don't
950        expect perfect matches for those
951    checkpoint46e_pre
952    
953    checkpoint46d_post
954    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
955      'OCEANICP', also initialised field pressure correctly in ini_eos in the
956      case of pressure coordinates. eosType='JMD95Z' in
957      combination with buoyancyRelation='OCEANICP' now causes an error.
958    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
959      in find_alpha/beta.
960    checkpoint46d_pre
961    
962    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
963      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
964    
965    checkpoint46c_post
966    o Changes necessary for ocean in p-coordinates
967     -  Added new buoyancy relation = 'OCEANICP'
968     -  Added new parameters = gravitySign (this used to be contained inside
969        the factor dRdZ which I added when we first switched to R coordinates).
970     X GM/Redi is not compatible (yet)
971     X bottom drag and no-slip need to be debugged.
972    checkpoint46c_pre
973    
974    checkpoint46b_post
975    o Added new equation of state -> JMD95Z and JMD95P
976      - EOS of Jackett and McDougall, 1995, JAOT
977      - moved all EOS parameters into EOS.h
978      - new routines ini_eos.F, store_pressure.F
979    o Added UNESCO EOS, but not recommended because it requires
980      in-situ temperature (see JMD95)
981    o Modified formatting for knudsen2.f in utils/knudsen2 and added
982      unesco.f to be used with POLY3
983    checkpoint46b_pre
984    
985    checkpoint46a_post
986    o Added (atmospheric) pressure loading
987      - new field in FFIELDS.h, etc...
988      - new cpp flag ATMOSPHERIC_LOADING
989    o Changed hFacC to _hFacC in calc_phi_hyd.F
990    o Added SHORTWAVE_HEATING to some files for consistency
991    checkpoint46a_pre
992    
993    checkpoint46
994    further merges from release1_p5
995    o new ctrl package
996      - adopted from ECCO environment to enable optimization
997      - added Eliassen Palm fluxes to controls
998    o added Eliassen Palm flux controls to gradient check package
999    o cost package
1000      - Compatible with new ctrl package
1001      - added Eliassen Palm cost hooks
1002      - modif's of existing cost functions
1003    o Adjoint-related bug fixes in kpp:
1004      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1005      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1006    o autodiff package
1007      - flow directives:
1008        + new for S/R do_the_model_io
1009        + enhanced for S/R checkpoint
1010        + new gmredi.flow
1011      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1012        disable adcommon.h/g_common.h by default.
1013      - fixed problem for adjoint of global_max
1014    o modified verification/carbon/
1015    o New setup for adjoint of global_ocean
1016    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1017    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1018    o incorporated hooks for sponge layer code (external_forcing.F)
1019    
1020    checkpoint45d_post
1021    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1022    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1023      (affects plume_on_slope "cg2d" output)
1024    o add new parameter deltaTfreesurf for free-surface time stepping
1025    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1026    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1027    o change phiMin in exp1 (to agree with documentation)
1028    o add new flags:
1029     - T,S forcing inside/outside Adams-Bashforth
1030     - turn off temp,salt advection and/or forcing
1031     - for each tracer, define internal flag for multiDimAdvection & A-B
1032    o monitor: change definition of KE to check conservation of Energy
1033    
1034    checkpoint45c_post
1035    o Removed f90 comments ("!")
1036    o Modified initialisations to enable exf package for MITgcm
1037      (without invoking ECCO_PACKAGE).
1038    o modifications to gradient check package (Martin Losch)
1039      - enable centered differences
1040      - modified format of standard output
1041    
1042    checkpoint45b_post
1043    o cleaned exchange calls in cg2d
1044    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1045    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1046      to configure barotropic setup (Martin Losch)
1047    o moved some initialisations within bi,bj loop in dynamics
1048      (TAF flow dependency)
1049    o in initialise_varia, moved call packages_init_variables
1050      before convective_adjustment_init
1051      (corresponding adjustment of TAF tape initialisation).
1052    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1053    
1054    checkpoint45a_post
1055    o compute Rho over the whole domain (extend iMin,jMin indices)
1056    o specific exchange for X-slice domain (case Ny=1)
1057    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1058    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1059    
1060    checkpoint44h_post = checkpoint45
1061    o Fix to restore differentiability:
1062      place at which packages_init_variables is called in
1063      initialise_varia is crucial for reverse control flow.
1064    o modifications in GMRedi to enable stable adjoint
1065      (corresponding modif's in thermodynamics, dynamics)
1066    o added missing hook for sponge layer code in external_forcing
1067    o modified test cost functions
1068    o storing in gad_advection (plus removal of write(0,*)!
1069    o missing headers TR1.h added in convective_adjustment routines
1070    o errorMessageUnit set non-equal zero in eeboot
1071      (conflict on some platforms, e.g. IBM SP3)
1072    o modified carbon verif.
1073    
1074    checkpoint44h_pre
1075    o vertical grid option: allow to put the Interface at the middle between
1076      2 cell-centers ; replace delZ in pkg/kpp by drF.
1077    o GM Advective form: Tracers are advected using the residual transport (=
1078      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1079    
1080    checkpoint44g_post
1081    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1082      results) ; ifdef missing in thermodynamics.F
1083    
1084    checkpoint44f_pre,checkpoint44f_post
1085    o added PTRACERS package
1086      This allows an arbitrary number of passive tracers to be integrated
1087      forward simultaneously with the dynamicaly model.
1088      + Implemented so far:
1089        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1090        - I/O and checkpointing
1091        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1092      + Not implemented so far:
1093        - KPP
1094        - OBCS
1095      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1096        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1097        line in data.pkg.
1098      + This package is disabled by default since it increases storage.
1099    
1100    
1101    o testscript: added -cleanup option
1102    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1103                 b) enable to filter 2D fields.
1104    
1105    checkpoint44e_pre,post
1106    o re-wrote convective adjustment to use pre-calculated weights
1107      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1108      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1109      Original calls to convect() still in place.
1110    
1111    chkpt44d_pre,post
1112    o added missing EXCLUDE_MONITOR flags
1113    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1114      (incompatible typ in MIN/MAX expressions caused problems
1115      on IBM SP3)
1116    o in genmake added variable MAKEDEPEND
1117      plus resetting for case SunOS
1118    o added timer_stats.c routine for IBM SP3
1119    o removed variables in dynamics
1120    !!! I forgot to create tag chkpt44d_pre !!!
1121    !!! But chkpt44d_pre = chkpt44c_post    !!!
1122    
1123    o real fresh water flux implemented with non-linear free-surface.
1124    
1125    chkpt44c_pre,post
1126    o few fix (mask in shap_s2, EmPmR in external_field_load,
1127      USE_NATURAL_BCS in solve_for_P);
1128    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1129    
1130    checkpoint44b_pre/_post
1131    o merge of relevant stuff from the ecco-branch:
1132      - genmake: removed $S64 overwrite for case SunOS
1133      - pkg/exf: update and corrections for field swapping and obcs
1134      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1135                  harmonized between ECCO and MITgcm
1136      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1137                      updated checkpointing_lev... lists for obcs
1138      - model/src: minor changes in forward_step, plot_field
1139                   added directive for divided adjoint in the_main_loop
1140      - pkg/mdsio: added mdsio_gl_slice
1141    
1142    o check parameters & config (chkpt44a_pre,post)
1143    o OBC and NonLin_FrSurf.
1144    
1145    checkpoint44
1146    o fix bug in mom_vi_del2uv
1147    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1148    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1149    o update AIM experiments (NCEP input files)
1150    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1151    o added some stuff for AD
1152    
1153    checkpoint43
1154    o added two new advection tests
1155    o added global 4x4 degree ocean test
1156    o added test of H&S94 with free surface on cube
1157    o some final mods for gradient check, adjoint,...
1158    
1159    checkpoint42
1160      Fixed AD-related problems:
1161    o Store directives up-to-date with re-arranged Adams-Bashforth
1162      (mainly thermodynamics.F)
1163    o New store directives for multi-dim. advection schemes
1164      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1165      * new common block and key passkey
1166      (mainly gad_advection.F)
1167    o Modified store directives for split of dynamics/thermodynamics
1168      for the case ALLOW_KPP
1169    o Cleaned argument list for timestep_tracer.F
1170    
1171    checkpoint41
1172    o re-formatted/added comments in prologues of key subroutines
1173      to work with protex
1174    
1175    checkpoint40
1176    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1177    o added FLT (floats) package from Arne along with demo. experiment
1178    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1179      implementation of forward-in-time forcing terms
1180    o more mods for non-linear free-surface including new variable
1181    o modified multi-dim method to work on cube
1182    o bug fix in KPP (from DM)
1183    
1184    checkpoint40pre9
1185    o added DST advection schemes
1186    o fix MPI bug on SGI's
1187    o modifications for non-linear free-surface
1188    o fixed conditionals for fixed flow/passive tracer only mode
1189    o added tension/strain form of stress tensor
1190    o changes to commenting of arguments for TAF/TAMC
1191    o added/updated many matlab scripts
1192    o added multi-dimensional advection method for tracers
1193      
1194    checkpoint40pre8
1195    o new package rw/
1196      Added method for dumping intermediate local arrays:
1197      mdsio_writetile - same as mdsio_writefield except works from inside
1198                        bi,bj loop
1199      mdsio_writelocal - same as mdsio_writetile except works for local
1200                         arrays
1201      write_local_r? - higher-level wrapper for mdsio_writelocal
1202      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1203      Example given at end of mom_vecinv.F that dumps some local arrays.
1204    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1205      control flux-form versus vector invariant code.
1206      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1207      or genmake -DISABLE ...
1208    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1209      (additional storing is now needed for case vecinv;
1210      currently nothing implemented to switch this storing off
1211      in case fluxform is used since no CPP flag available).
1212    
1213    checkpoint40pre7
1214    o bug fix in dynamics.F
1215      calc_viscosity called before k=1,Nr loop.
1216    o added some #ifdef's ALLOW_PASSIVE_TRACER
1217    o cleaned initialisations in ctrl_map_ini
1218      related to TAF
1219    
1220    checkpoint40pre6
1221    o split dynamics into thermodynamics & dynamics
1222    o corresponding split of calc_diffusivity into
1223      calc_diffusivity, calc_viscosity
1224      (kpp_calc_diff, kpp_calc_visc).
1225    o Added diffkr, kapgm to control variables
1226    o bug fix in gmredi_slope_limit for ldd97
1227    
1228    checkpoint40pre5
1229    o proper initialization of Adams-Bashforth time stepping
1230      + uses forward step for very first step of model (iter=0)
1231    o re-generated *all* output since almost all output is modified by this
1232      change (sorry but we've been putting this one off for about 2 years)
1233      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1234        *not* regenerated since they are already out of date and I don't
1235        want to create the impression that they are suddenly working.
1236    o removed KAP stuff for DEC's
1237    o modified/added many .cvsignore files in */code and */input
1238    o added new expt "solid-body.cs-32x32x1"
1239      + this uses an alternative form of ini_curvilinear_grid.F which
1240        is not necessarily any better than the current one...
1241    
1242    checkpoint40pre4
1243    o added re-initialisations of utrans,vtrans,rtrans in
1244      calc_common_factors which are crucial for TAF.
1245    o extended iMin,jMin range for calc_common_factors,
1246      calc_diffusivity
1247    o added option ALLOW_PASSIVE_TRACER
1248    o a few minor updates and fixes
1249    
1250    checkpoint40pre3
1251    o created calc_gtr1.F for gad package
1252    o split the_main_loop and re-introduced forward_step
1253    o some recomputations of nIter0 for TAMC
1254    
1255    checkpoint40pre2
1256    o Updated to latest branch of AJA, JMC
1257    o Added gradient check package
1258    o Added routines for passive tracer handling
1259    o Added carbon sequestration sensitivity experiment
1260    
1261    checkpoint39
1262     o Modifications and fixes to support TAMC
1263       (mainly missing or wrong directives)
1264     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1265       in addummy_in_stepping
1266     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1267     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1268     o Included following packages:
1269       cal: calendar
1270       exf: external forcing
1271       ecco: essential routines to control use of cal, exf
1272             (NB: this is not the full ECCO environment)
1273     o disabled some packages by default in genmake
1274    
1275    checkpoint38
1276     o see notes_c37_adj.txt
1277     o corrected wrong layer index in external_forcing_t
1278     o replaced the_main_loop/forward_step by the_main_loop
1279     o removed forceoutput from write_state
1280       (replaced criteria for initial/final state)
1281     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1282    
1283    checkpoint37
1284     o mdsio.F routine split and packaged in pkg/mdsio
1285       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1286        used unless genmake -disable=mdsio)
1287     o allow a more precise surface-geopotential gradient for the atmosphere
1288       taking into account the change in space of Alpha (=1/rho) at the surface.
1289     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1290       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1291     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1292       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1293       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1294     o Time-Average diagnostics defined as a pseudo package "timeave".
1295     o pickup files : old pickup (before c35) did not work with new code (c35
1296       and after) unless activating 2 commented lines in initialise-varia.
1297     o Non-Hydrostatic pickup file Pb fixed.
1298     o bug with Rigid-lid version (since c35) fixed.  
1299    
1300    checkpoint36
1301     o implement Crank-Nickelson barotropic time-stepping
1302     o recover Time-Average diagnostics
1303     o fix Pb in checkpoint (PR#19)
1304     o AIM become a standard package ; clean unused CPP_kees
1305    
1306    checkpoint35
1307     o subtantial rewrite of dynamics.f
1308     o allows staggered time-stepping
1309     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1310     o added bottom drag (linear + quadratic)
1311    
1312    checkpoint34
1313     o Modified exchange routines for correct reverse simulation.
1314     o Added verification output to comply with bug fix in impldiff.F
1315       as of c33 (exp2, natl_box).
1316     o Corrected store directives in dynamics.F
1317     o Corrected array boundaries in impldiff.F
1318     o Corrected array dimensions in gmredi.
1319       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1320     o Added routine GLOBAL_SUM_INT to global_sum.F
1321     o Added mdsio_gl.F for ECCO purposes.
1322    
1323    checkpoint33
1324     o Fixed bug in lower BC in impldiff.F
1325     o Fixed confusion about units of forcing arrays in FFIELDS.h
1326       namely Fu,Fv,Qnet,Qsw,EmPmR:
1327       - Removed verification/natl_box/code/external_fields_scale.F
1328         (did not differ from that in model/src)
1329       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1330         (see FFIELDS.h for description)
1331       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1332         kpp_calc.F and kpp_transport_t.F
1333       - Removed model/src/external_fields_scale.F and calls to it
1334       - verification/natl_box uses flux data with "atmospheric" sign so
1335         a special version of external_fields_load.F is used to
1336         change the data as it's read in. This way, the arrays
1337         have the right units and signs at all times tha a user could
1338         possibly use them.
1339     o Corrected genmake to delete a temporary file during configuration
1340    
1341    checkpoint32
1342     o Scaling of forcing fields moved from external_forcing.F to
1343       external_fields_scale.F, called directly after loading fields.
1344     o Surface relaxation terms added to surface tendency fields in
1345       extra subroutine.
1346     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1347       fields.
1348     o Changes in GMRedi to comply with packaging structure.
1349     o Modifications and bug fixes in KPP package.
1350     o Verification experiment for KPP added (verification/nat_box/)
1351    
1352    checkpoint31
1353     o Packages interface brought in line with defined standard
1354       -> new routines packages_...F
1355       -> changes in initialise_fixed.F, initialise_varia.F
1356       -> enables initialisation interface for ECCO package
1357     o Rescaling of external forcing fields immediately after read
1358       (removed from external_forcing.F)
1359       -> new: surface_fields_scale.F
1360       -> affects ini_foorcing.F, external_fields_load.F
1361     o Computation of surface tendencies before tendency updates.
1362       -> new: external_forcing_surf.F
1363     o Change of variable names useGMRedi, useKPP, useECCO
1364     o Further changes in dynamics.F, impldiff.F for TAMC
1365     o Tested for experiments 0, 2, 4.
1366       - not yet tested for GMRedi.
1367       - not yet tested for KPP.
1368    
1369    checkpoint30
1370     o Updates for OBCs
1371     o New experiment for test OBCs (internal_wave)
1372     o New output.txt in verification/exp4/results/
1373     o Updates for KPP: calculation of viscosity corrected, new variables
1374       kpp_dumpFreq and kpp_taveFreq
1375     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1376       and entry for T90 in genmake
1377    
1378    checkpoint29
1379     o packaged KPP and GM/Redi
1380    
1381    checkpoint28
1382     o Corrected initialization of hFacMin for difference vertical coordinates
1383     o Modified calculation of partial cell thickness to more robust algorithm
1384     o config_summary.F: replaced write_1D_... by write_0D_...
1385       read_write.F: added subroutines write_0D_...
1386     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1387       included some initialisations required for TAMC.
1388     o routine calc_isoslopes: modified sqrt computation to make it
1389       differentiable for zero argument.
1390     o routines dynamics, impldiff:
1391       included store directives and tape key computations required for TAMC.
1392     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1393    
1394    checkpoint27
1395     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1396       formulation works properly with variable resolution.
1397     o restructured the calling tree between the_model_main() and dynamics()
1398     o split initialise() into initialise_fixed() and initialise_varia()
1399     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1400       in new routine ini_psurf()
1401    
1402    checkpoint26
1403     o moved some #ifdef in optional routines to encompass everything
1404       except the argument declarations. This was using up some memory.
1405     o fixed macros like _ADT to work with both versions of Linux cpp
1406     o cleaned up some unused and uninitialized variables
1407       (helps when debugging with strict compile options)
1408     o split up CPP_EEOPTIONS.h into options and macros
1409       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1410     o patch for 2 processor JAM mode
1411    
1412    checkpoint25
1413     o updates for OBCs and NH
1414     o dramatically reduced memory usage
1415     o added "JAM" routines for use on Artic network
1416     o parameterization of convection by implicit vertical diffusion
1417     o added a diagnostic of convective index
1418     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1419       (this is was partly for OBCs and NH but also in anticipation of
1420        an explicit free-surface option)
1421     o initial state input files for U and V
1422    
1423    checkpoint24
1424     o Removed some spurious "REAL"s
1425     o Updated KPP to latest version from JPL
1426     o Added a COS(latitude) in horizontal viscosity
1427    
1428    checkpoint23
1429     o Added del^4 diffusion for salt and temperature
1430     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1431    
1432    checkpoint22
1433     o Made many small changes: implicit none, format(i5), etc...
1434     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1435    
1436    checkpoint21
1437     o Introduced new I/O package that supports direct-access records (mdsio.F)
1438     o Split-up mid-level I/O routines
1439     o Updated input data for experiments 0,1,2,4 and 5
1440     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1441    
1442    checkpoint20
1443     o Tidied up open-boundaries some more
1444     o Added non-hydrostatic code
1445     o Fixed some input data
1446     o Modified MPI start-up to work in "coupled" context.
1447    
1448  checkpoint19  checkpoint19
1449   o Tidied up directory structure for verification experiments.   o Tidied up directory structure for verification experiments.
1450   o Added new code for open boundaries.   o Added new code for open boundaries.
1451   o Corrected advective terms near boundaries.   o Corrected advective terms near boundaries.
1452   o Added CPP flag for "old UV" geometry and corrected spherical geometry.   o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1453   o Implemented free-slip/no-slip BCs and del^4 dissipation.   o Implemented free-slip/no-slip BCs and del^4 dissipation.
1454   o Split default parameters out f ini_parms.F into set_defaults.F.   o Split default parameters out of ini_parms.F into set_defaults.F.
1455    
1456  checkpoint18  checkpoint18
1457   o Further changes for optional code generation with   o Further changes for optional code generation with

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