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revision 1.9 by adcroft, Thu Jul 2 14:20:04 1998 UTC revision 1.236 by afe, Fri Jan 9 20:46:09 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52e_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    checkpoint52e_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
1449     o Tidied up directory structure for verification experiments.
1450     o Added new code for open boundaries.
1451     o Corrected advective terms near boundaries.
1452     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1453     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1454     o Split default parameters out of ini_parms.F into set_defaults.F.
1455    
1456    checkpoint18
1457     o Further changes for optional code generation with
1458       CPP - ugh!
1459    
1460    checkpoint17
1461     o Beginning to incorporating modularity
1462       for supporting atmos. and ocean configs.
1463     o Small changes for TAMC complinace
1464     o New ultra simple test case. Barotropic box
1465       configuration "exp0".
1466    
1467    checkpoint16
1468     o Minor changes to exchange routines to support
1469       accumulation in reverse mode. Adjoint of an
1470       assignment is an addition.
1471     o Changes to support compilation by TAMC (LR(1)
1472       syntax) and by g77 under Linux ( 72 character
1473       limit ).
1474    
1475    checkpoint15
1476     Rewrote exchange routines to allow
1477     o General tile <-> tile connectivity.
1478     o TAMC reverse mode flag ( is this really needed? )
1479     o Variable width overlap and exchange region widths.
1480     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1481       shmput/shmget, VIA, SYSV shmem and every other cool
1482       communication method.
1483    
1484    checkpoint14
1485     Consistent isomorphism chages made. These allow dynamical core
1486     to support both pressure and meters as a vertical coordinate.
1487    
1488    checkpoint13
1489     Release which corrects global_max problem and a couple
1490     of KGM time-averaging diagnostic errors. Also contains
1491     a double-gyre experiment setup as well as the baseline
1492     4 degree global template. The double gyre template is
1493     organised to allow it to be applied automatically to
1494     the baseline configuration.
1495    
1496    branch-point-rdot
1497     A few tidy-ups have been made bt the real point of this
1498     check-point (excuse the pun) is to allow a branch to be
1499     made for the purposes of adding the rDot alterations.
1500     I don't want to commit the rDot to the main-trunk until
1501     we've actually tested it...
1502    
1503    checkpoint12
1504     Tidy up and added generic genmake script (formerly
1505     configure script).
1506     Released to testers.
1507    
1508  checkpoint11  checkpoint11
1509   Re-arranged initialise() and introduced ini_vertical_grid()   Re-arranged initialise() and introduced ini_vertical_grid()
1510   and ini_masks_etc().   and ini_masks_etc().

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