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revision 1.70 by jmc, Sat Apr 6 01:36:25 2002 UTC revision 1.309 by jmc, Mon Jun 14 19:05:36 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint53d_post
7    o faulks upgraded: re-generate output.txt that have changed:
8       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
9    o Added Bryan and Lewis, 1979, vertical diffusivity profile
10    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
11    o added Sadourny discretization of Coriolis
12      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
13      - re-enabled use of omega3 (useAbsVorticity)
14    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
15      vector-invariant equations
16      - note: does *NOT* yet use same variable visc. for no-slip BC's.
17    o recoded the lateral boundary conditions for non-hydrostatic w, this time
18      hopefully without new bugs
19      - still to do: biharmonic friction for non-hydrostatic w
20    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
21    o regenerated output for global_ocean_ebm (using -ieee)
22    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
23      of mom_common/
24      - simple re-arrangement of instructions within computing loop
25    checkpoint53d_pre
26    
27    checkpoint53c_post
28    o new version of coupler for AIM+thSIce and Ocean models
29     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
30     - land: change Evaporation of snow
31     - aim with thSIce: fix bug in snow-precip.
32    o changes to calc_gw.F
33     - bug fix for w^2 term near the bottom boundary
34     - (hopefully) improve the lateral slip boundary condtions for use with
35        partial/looped cells
36      - because the bug fix changes two verification experiments anyway (exp5
37        and plume on slope), change the lateral boundary condition from half slip
38        to the value of no_slip_sides
39    o ebm package wasnt quite up to the parallel task. Fixed that.
40    o Adjoint of EBM package + verification
41      * TLM OK
42      * ADM not sufficient accuracy yet (needs further testing)
43    
44    checkpoint53b_post
45    o Commiting new energy balance model to repository
46      * package is pkg/ebm
47      * verif. is verification/global_ocean_ebm
48      * references are in ebm_driver.F
49    C      * X. Wang, P. Stone and J. Marotzke, 1999:
50    C        Global thermohaline circulation. Part I:
51    C        Sensitivity to atmospheric moisture transport.
52    C        J. Climate 12(1), 71-82
53    C      * X. Wang, P. Stone and J. Marotzke, 1999:
54    C        Global thermohaline circulation. Part II:
55    C        Sensitivity with interactive transport.
56    C        J. Climate 12(1), 83-91
57    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
58    C        Destabilization of the thermohaline circulation
59    C        by atmospheric eddy transports.
60    C        J. Climate 7(12), 1870-1882
61    o Will need long integration testing.
62    checkpoint53b_pre
63    
64    o created pkg/mom_common in preparation for variable viscosity code
65    o renamed and split ini_mnc_io
66    o pkg/land: only liquid water can diffuse or run-off
67    o AIM using land: soil wetness availability account for snow
68    o added printMapIncludesZeros to EEPARMS namelist
69    
70    checkpoint53a_post
71    o restore TAMC compatiility for exf_constants.h
72      (no usage of _d in .h)
73    o Additional storing in KPP in an attempt to fix
74      TAMC problem with adjoint of KPP code.
75      (no success...)
76      Identical code works fine with TAF.
77    o Fixed verification/natl_box_adjoint experiments.
78      Initial conditions for Experiments 4 and 5 are now
79      set to "SEAICE_initialHEFF=0", which is more reasonable,
80      and hence gives results closer to that of Experiment 2.
81      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
82    
83    checkpoint53
84    o stable checkpoint with up to date adjoint
85      TLM tests only run for 1st grdchk at the moment. Its unclear if
86      this is a code problem or a problem with resetting code for g_
87      variables that is being autogenerated wrong.
88      Otherwise:
89       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
90       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
91         are both still in chaos following their security messes.
92    
93    checkpoint52n_post
94    o various build (mostly genmake2) changes including:
95      - ability to build/run more easily within Cygwin and MacOS X
96      - more complicated Makefiles with a stronger dependence on Gnu Make
97    o pkg/seaice modifications
98      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
99        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
100        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
101      - changed proxy for geostrophic velocity and updated
102        verification/lab_sea/results/* accordingly
103      - removed ADI dynamic solver from pkg/seaice
104      - replaced all occurrences of 1/CSTICE or 1/CSUICE
105        they caused a segmentation fault under certain circumstances
106      - removed unused field WATR
107    o bug fix in exf-package:
108      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
109         now reflect that.
110    o small fixes in the cal-package:
111      - set reference date to first of January for the 'model'-calendar
112      - failing of cal_CheckDate in cal_FullDate now actually results in a
113        warning
114    o small modifications in exf-package to increase flexibility:
115      - change climtempfreeze from a constant to a runtime parameter that
116        is specified in data.exf_clim (default = -1.9)
117      - introduce runtime parameter windstressmax (default = 2.0) that is
118        specified in data.exf
119    o fix in pkg/thsice:
120      - update Evap (Tsf changes) to be consistent with Latent heat flux
121      - maintain snow precipitation unchanged (even if Tsf >=0).
122     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
123    
124    checkpoint52m_post
125    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
126      this does not change any of the results, because myIter=0 in swfrac always
127      lead to jwtype=2 (the default anyway), but the call makes little sense
128      as a default
129    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
130    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
131      atmospheric model (AIM) to use it ; add a "slab ocean" component.
132    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
133    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
134    o extending useSingleCpuIO option to work with new exch2 I/O format
135      - old-style, missing-tile I/O is still accessible by defining CPP
136        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
137    o monitor package can write to NetCDF files and/or STDOUT
138    o fix re-definition bug in MNC_GRID_INIT_ALL()
139    o doc/api_reference added
140      - a framework for building an API Reference Manual using all
141        the "protex" comments embedded in the code
142      - see pkg/generic_advdiff, pkg/mnc for examples
143    o MNC:
144      - make myThid the last argument for all subroutines
145      - new default for the grid files: NO halos
146      - add useMNC and other run-time flags
147      - separate per-file-group handling of the unlimited dimension
148      - early initialization of MNC w/ flags read at the eeboot stage
149        and lookup tables set in initialize_fixed
150      - write all MNC output to a freshly-created directory
151    o thermodynamics sea-ice (thsice) is now tested with testreport.
152    o test exp. advect_cs: use the standard cs32 grid ; update output.
153    o Added functionality to grdchk:
154      pick global i,j,k position (or nearest wet) where to perform check.
155    
156    checkpoint52l_post
157    o new land formulation:
158      a) use ground enthalpy as prognostic variable to ensure exact
159         energy conservation.
160      b) account for water temperature and for latent heat of freezing
161         in all processes (rain, run-off, ground storage)
162      c) compute surface and ground temperature implicitly.
163    o aim_v23 modification for new land model:
164      a) Treat separately land / ocean / sea-ice surface fluxes
165         to allow implicit computation of land & sea-ice surface temp.
166      b) add snow precipitation.
167    checkpoint52l_pre
168    
169    o fix problem (when 1 tile is empty) in min/max monitor.
170    o fix bug in timeAve (u,vZetatave in common block)
171    o no restoring terms under ice for pkg/seaice
172    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
173    o bug fix for pkg/seaice pickups
174    o change MNC call locations and add coordinate attributes
175    o mask vorticity at the corner ; affects global_ocean.cs output
176    o fix ini_curvilinear_grid ; test CS experiments with mpi
177    o aim.5l_cs: modify sea-ice fraction input file ; update output
178    o exf: Adding simple range check routine for exf fields after read
179    
180    checkpoint52k_post
181    o removed top-level directory "diags"
182      - we migrated these functions to pkg/timeave a long time ago
183    o fixed bug introduced in pkg/monitor
184    o accuracy ctrlprec = 32 insuffient for gradient checks using
185      averaged fields (I/O via cost_averages)
186      -> use ctrl.h in active_file*.F to control I/O precision.
187    o paramter list of CALL ADTHE_MAIN_LOOP
188    o added initial do_the_model_io to ecco
189    o set all ...Freq to zero after cost_final
190      taveFreq, dumpFreq, pChkptFreq
191    o MAIN and ECCO differentiability restored
192    
193    checkpoint52j_post
194    o fix nchklev in tamc.h for global_ocean...
195    o Bringing flow and store directives up-to-date
196    o Really weird thing!
197      call do_the_model_io from the_main_loop with parameters
198      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
199      TAF places a faulty re-call of initialise_varia
200      after cost_final call which should not be there!
201    checkpoint52j_pre
202    
203    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
204      error messages
205    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
206    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
207      debug output
208    o modfied mdsio_writefield.F to handle non-global files under exch2
209    o update AIM Cubed-Sphere exp (aim.5l_cs):
210      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
211    o update AIM Equatorial Channel exp:
212      use standard aim_v23 pkg and change the SST fields to be more realistic.
213    o globalFile now works with exch2
214    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
215      mon_vort3.F to make exch2 friendly with >1 tile per cube face
216    o limit timeave output for hi-res integrations
217    
218    checkpoint52i_post
219    o removed CPP_EEOPTIONS.h from verification/*/code
220    o updated the tiling for global_ocean_pressure
221    checkpoint52i_pre
222    
223    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
224      the old pkg/aim).
225    
226    checkpoint52h_pre
227    o shortened offending lines in exch2_send_rx?.template
228    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
229    o genmake2: add build & execute test for NetCDF code
230    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
231      old grid files, moved CPP_EEMACROS.h to pkg/exch2
232    o added useSingleCPUIO flag to monitor.F and mon_out.F
233    o added temporary hack for sea-ice dynamics on the cube:
234      metric terms are ignored and it is assumed that
235      there is no sea-ice on cube faces 1, 2, 4, and 5.
236    
237    checkpoint52f_post
238    o added exch2 cube routines to pkg/exch2
239    o modified hs94.cs-32x32x5 to use it
240    o added new grid files to hs94.cs-32x32x5
241    checkpoint52f_pre
242    
243    checkpoint52e_post
244    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
245      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
246    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
247      to work with implicit vertical advection and AB ;
248    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
249    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
250     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
251    checkpoint52e_pre
252    
253    o fix bug in impldiff when Nr=1 or Nr=2.
254    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
255    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
256    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
257      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
258    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
259    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
260    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
261    
262    checkpoint52d_post
263    o re-tiled many expts to allow comparison in multi-processor mode
264      - updated output accordingly
265      - changed hs94.128x64x5 to use intial T from file rather than use the
266        random number generator
267    o add infrastructure in model routines for fizhi and gridalt packages
268    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
269    o changes to permit hi-res, cubed-sphere, configuration
270      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
271      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
272      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
273        of surface winds for the cube
274      (A verification experiment, based on global_ocean.cs32x15, but with
275       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
276       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
277       complete with example surface forcing files and matlab scripts to look
278       at the output and compare it with that of global_ocean.cs32x15.)
279    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
280       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
281       to conform to the common rule.
282    o check-in the first version of the coupler + interfaces for multi-components
283       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
284       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
285       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
286       - ocean and atmos. share the same horizontal grid (no interpolation).
287       - exchanges between component and coupler is done in forward_step
288    o new verification experiment, cpl_aim+ocn:
289       coupled ocean - AIM atmosphere on cs32 grid.
290    
291    checkpoint52d_pre
292    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
293    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
294    
295    checkpoint52c_post
296    o Fixing OPTIONS files for use of exf:
297      - ALLOW_ECCO not needed
298      - ECCO_CPPOPTIONS.h should not be included from
299        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
300        as has been the case in the past
301      - All cal/exf related options are currently set in
302        single header file. Should remain so until we
303        agree on a consistent new policy.
304    o Removed all CPP options for cal package.
305      cal has no more CPP options.
306    o modified STOREs in GAD_ADVECTION
307    o corrected key comp. for passkey
308    
309    checkpoint52b_post
310    o new version: "thsice" of thermodynamic sea-ice pkg:
311     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
312     - modify fluxes but do not change theta directly;
313     - light cleaning of bulk_force pkg (still needed with thsice).
314     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
315       + output_thsice.txt to test thsice & bulk_force pkgs.
316    o put back grid & coriolis monitor output.
317    checkpoint52b_pre
318    
319    o call "do_the_model_io" at the beginning (=> dump initial state)
320    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
321    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
322      (need info on NUMBER_OF_PTRACERS)
323    o missing PTRACERS headers in some routines
324    o default tamc.h in pkg/autodiff supposed to crash
325      to ensure proper customization
326    
327    checkpoint52a_post
328    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
329      - moved surfaceTendencyTice from pkg/seaice to main code
330      - subroutine FREEZE_SURFACE now limits only surface temperature
331        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
332        => new output.txt for global_ocean.cs32x15 & global_with_exf
333      - keep the old version of FREEZE for backward compatibility;
334        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
335      - corresponding modifs for TAF directives
336    o added surface flux output variables to TIMEAVE_STATVARS
337    o time-averaged output for pkg/ptracers
338    o fix problem with ECCO-related divided adjoint
339      snapshot file was missing some ad-variables,
340      but no warning issued by TAF
341    
342    checkpoint52a_pre
343    o some bug fixes for #undef REAL4_IS_SLOW
344    
345    checkpoint52 = ecco_c52_e35
346    o after testing adjoints of checkpoint51u_post
347    
348    checkpoint51u_post
349    o this is the post-merge tag of the ecco-branch
350      (needs another clean checkout and re-testing)
351    o various natl_box_adjoint configs and results
352      but no input fields
353    o obcs adjoint not yet merged!
354    o adding ECCO global 1x1 and 2x2 degree configs
355    o updated/extended some store directives for seaice
356    o pkg/ecco now containes ecco-specific part of cost function
357    o top level routines the_main_loop, forward_step
358      supersede those in model/src/
359      previous input data.cost now in data.ecco
360      (new namelist ecco_cost_nml)
361    o in ctrl/ cleaned some cross-dependencies and updated CPP options
362    
363    checkpoint51t_post
364    o this is the pre-merge tag of the ecco-branch
365    
366    checkpoint51s_post
367    o cleanup: removed various obsolete #define-s
368    o pkg/grdchk
369      - renamed 'ph-grd 3' to 'grad-res'
370      - merged from ecco-branch
371        (remaining bug fixes for obcs gradient checks)
372      - additional high-precision output for testreport
373        (grep for 'precision_grdchk_result')
374    
375    checkpoint51r_post
376    o cleaned up or removed CPP_OPTIONS.h files
377    o updated results for some of the tests to reflect the new
378      optfiles (-ieee: -O0 instead of -O3)
379    
380    checkpoint51q_post
381    o cd_code:
382      - moved cd_scheme.F -> cd_code_scheme.F
383      - separate read_checkpoint from cd_code_ini_vars.F
384      - separated cd_code part from write_checkpoint
385      - updated AD_SOURCE, generated .flow
386      - added CD_CODE_VARS.h to the_main_loop
387      - Moving cd_code specific store dir.s to pkg/cd_code
388    o ctrl package totally restructured
389      - pack/unpack now optional and decoupled from
390        xx_/adxx_ I/O
391      - ctrl_pack/unpack cleaned
392        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
393      - confined inclusion of AD_CONFIG.h to where necessary.
394    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
395    
396    checkpoint51p_post
397    o create initial cd_code package
398      - WARNING: the initialization of fields within packages
399        is broken because INI_FIELDS (where READ_CHECKPOINT is
400        called) is called *before* PACKAGES_INIT_VARIABLES.
401        This seems to be backwards since
402        1) its important to initially zero the entire field including
403           the "halo" region
404        2) zeroing needs to be done *before* reading pickup info
405           and the pickup call might or might not happen in any
406           particular run
407      - this needs an overhaul for R2
408    o cleanup verification/*/code/GMREDI_OPTIONS.h
409    o cleanup testreport
410    
411    checkpoint51o_post
412    o bringing AD-related verif's up to date with genmake2
413      - carbon/
414      - global_ocean.90x40x15/
415      - hs.94.1x64x5/
416      - (front_relax/ )
417    o (more) consistent directory structure for AD-related verif.'s
418    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
419    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
420    o bug fix in find_alpha.F for MDJWF:
421      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
422        change rho -> rho-rhoConst
423      - replace call find_rho to find_rhonum
424    o initialisation of rFlx extended to full array (required by TAF)
425      and shifted to thermodynamics
426    o removed PTRACERS.h in ptracers routine
427    o added surfacetendencyPtr to S/R parameter list pracers_forcing
428    o Correcting initialisations for fVerU, fVerV.
429    o helping TAF to recognize dependency on kUp for
430      fVerU, fVerV
431    o Replacing delZ by delR in pkg/ctrl/
432    checkpoint51o_pre
433    
434    o undid all of cp51 pending some cleanups and discussion
435    o added the [#include "AD_CONFIG.h"] statement to all files that need
436       it for adjoint/tl #defines
437     o re-worked the build logic in genmake2 to support AD_CONFIG.h
438     o removed tools/genmake since it no longer works
439    
440    checkpoint51n_post
441    o modifications to make FREEZE flux visible to pkg/kpp
442      - moved surfaceTendencyTice from pkg/seaice to main code
443      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
444      - subroutine FREEZE now limits only surface temperature
445        (this means new output.txt for global_ocean.90x40x15,
446         global_ocean.cs32x15, and global_with_exf)
447    o added surface flux output variables to TIMEAVE_STATVARS
448    
449    checkpoint51n_pre
450    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
451    o added [#include "AD_CONFIG.h"] to all files that use the following
452      defines:
453      - ALLOW_ADJOINT_RUN
454      - ALLOW_TANGENTLINEAR_RUN
455      - ALLOW_ECCO_OPTIMIZATION
456    
457    checkpoint51m_post
458    o incorporating changes to get TAMC/TAF working in genmake2
459      - added new TAMC/TAF targets to the Makefile
460      - various cleanups related to package handling
461      - these changes should have no impact on the forward model
462    
463    checkpoint51l_post
464    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
465     - faster algorithm for cal_addtime.F
466     - higher precision arithmetic, where needed
467     - pkg/exf *startdate variables changed from calendar date to
468       model integration time
469    
470    checkpoint51l_pre
471    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
472    o enable to apply restoring on S & T only in a latitude band.
473    o update output (external_forcing_surf modif. change truncation errors)
474       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
475    
476    checkpoint51k_post
477    o change default to: useNHMTerms=.FALSE.
478     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
479       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
480     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
481        exp1, ideal_2D_oce
482     - change data file of oceanic exp (leave the results unchanged for now)
483       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
484    o set gravitySign automatically according to the vertical coordinate used
485      (and change sign: back to "logical" value: +1 when R increases downward)
486    o added an include barrier to the default CPP_OPTIONS.h and
487      removed the #include "PACKAGES_CONFIG.h" from it
488    o fix a bug in mom_fluxform (from chk51j_post)
489    
490    checkpoint51j_post
491    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
492    o adjusted some flow directives (dynamics, thermodynamics)
493    o added cubed-sphere case to test cost function
494    o heckpoint_lev?_directives.h now include
495      pkg-specific directives, whenever those are enabled.
496    o Moving pkg-specific flow directives to corresponding pkg
497      Moving pkg-specific differentiation list to corresponding pkg
498      Moving pkg-specific checkpoint-lev storing to corresponding pkg
499      ---> conventions are
500           - pkg_ad.flow
501           - pkg_ad_diff.list
502           - pkg_ad_check_lev?_dir.h
503    
504    checkpoint51i_post
505    o merge of the branch-genmake2
506      - knowingly breaks the older genmake
507      - automatic generation of all ALLOW_${PKG_NAME} defines
508      - new testreport supersedes older testscript
509    o large number of package inclusion and header cleanups
510    checkpoint51i_pre
511    
512    o new output for adjoin of global ocean vector invariant
513    o fix for checkpoint of thermodynamic seaice and bulk_force
514    o Steph gchem various cleanups
515    
516    checkpoint 51h_pre
517    o fixed some single quotes
518    o modify gchem pkg to be more versatile
519    o modifications to clean up dic pkg
520    o add pkg/cfc
521    
522    checkpoint51g_post
523    o provide links for ARPACK and ADM*TLM
524    o start removing verification/vero/
525    o update AD-related stuff
526      (in particular some IF-statements in model/src/ routines)
527    o adding to verification/global_ocean.90x40x15/ adjoint of
528      vector invariant setup
529    
530    checkpoint51f_post
531    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
532    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
533      of tracer Green's fucntions for ocean inversion project.
534    
535    checkpoint51f_pre
536    o Added on-the-fly spatial interpolation capability
537        "USE_EXF_INTERPOLATION" to pkg/exf.
538      - This is a temporary Cartesian-grid hack until
539        the super-duper ESMF coupler becomes available.
540      - See verification/global_with_exf/README for usage example.
541      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
542        flags and modified pkg/seaice accordingly.
543    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
544        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
545        non-local transport term.
546    
547    checkpoint51e_post
548    o pkg/mom_vecinv:
549      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
550      - add time-ave diagnostic of vorticity advection.
551    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
552    o atmospheric geopotential: - include water vapor effect;
553                                - use p^kappa in p* scaling.
554    o land pkg: read initial state from files.
555    o AIM : add stratospheric drag in the upper level
556    
557    checkpoint51d_post
558    o change function ILNBLNK (=> last non-blank char.) to return zero
559      (instead of the string length) when the string. char is empty
560    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
561    o modif's to restore TAMC compatibility
562      - avoid "_d" constructs in PARAMETER declarations
563      - avoid interrupting lines by comment lines
564    o Use cluster local disks for purely local I/O
565      vs. globally visible disks needed for ctrl stuff
566      (merged from ecco-branch)
567      - new active_file_loc... and mdsio_..._loc routines
568      - affected packages: autodiff, ctrl, grdchk, mdsio
569    
570    checkpoint51c_post
571    o introducing integer flag debugLevel
572      - debLevZero: suppress all output
573      - debLevA: standard
574      - debLevB: equivalent to current debugMode=.TRUE.
575    o introducing pathname variable mdsioLocalDir for mdsio
576      that can be specified at runtime
577      (relevant for cluster I/O to local disk)
578    `
579    >>>checkpoint51b_post
580    adjoint of ptracers
581    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
582    o extended state in checkpoint_lev?, etc.
583    o alternative ctrl/cost with tr1 or ptracer
584    o new comlev1_bibj_ptracers
585    o new ptracers.flow
586    o made ptracers_forcing same as external_forcing_s
587    o added verification for adjoint with ptracers
588      - adm. grdchk fail so far
589      - tlm. grdchk OK
590      - checked tapelev/comlev recomputations: OK
591    <<<checkpoint51b_pre
592    
593    checkpoint51a_post
594    o added code for biogeochemistry package
595      - new pkgs: dic, gchem
596      - new subroutine in ptracers
597    o modify code for biogeo packages
598      - in model/src and pkg/ptracers
599    
600    checkpoint51
601    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
602      - autodiff, ctrl, exf, grdchk, seaice
603      kept separate packages
604      - cost, ecco, obcs
605    o updating verification/internal_wave, verification/lab_sea
606      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
607    
608    checkpoint50i_post
609    o Preparing next differentiable checkpoint and sync
610      of MAIN vs. ecco-branch
611      - 1st step: this one is differentiable
612      - 2nd step: next(! not this) checkpoint will have updated packages
613                  from ecco-branch)
614    
615    checkpoint50h_post
616    o new package "land": provide surface BC for AIM.
617    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
618    o AIM: use true log-P extrapolation for near surface temp (= as in
619        F.Molteni paper) ; update aim.5l_cs output.
620    o New variable in PARM03 for more flexible pickups
621    o somewhat cleaned package initialisation sequence for
622      ctrl/ cost/ ecco/ in packages_... routines
623    
624    checkpoint50g_post
625    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
626      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
627      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
628        made the default because of faster convergence than ADI
629    
630    checkpoint50f_post
631    o exf totally restructured
632      - replaced all exf_set_ routines by one generic exf_set_gen.F
633        and made sure it's still differentiable
634      - split exf_getffields.F into new exf_bulkformulae.F
635      - exf_inscal_/exf_outscal_ suffixes consistent with field names
636      - updated adjoint/makefile and relevant verif. accordingly
637    
638    checkpoint50f_pre
639     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
640          + change Evap over land. (update aim.5l_cs output)
641     o added missing .cvsignores and made uniform across expts
642     o changed configuration of tidal_basin_2d expt
643     o added pkg/debug functions for tracing code in fatal crashes
644     o tidied pkg/monitor to use MONITOR_OPTIONS.h
645     o new fn in pkg/monitor to stop model if solution grows too big
646     o removed lots of single quotes from comments
647    
648    checkpoint50e_post
649    o make KPP work with PTRACERS
650     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
651       nearly a copy of kpp_transport_s
652     - there is no analogue to SurfaceTendencyS, so I have to use
653       gPtr(of the surface layer) instead
654    o add a new platform SunFire+mpi (SunFire 15000) to genmake
655    checkpoint50e_pre
656    
657    checkpoint50d_post
658    o change kpp output from multiple-record state files to single-record state
659      files analogous to write_state.F
660    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
661      analogous to the cg2d-related output.
662    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
663      so that writing to internal file fn (with length 512) fails.
664    checkpoint50d_pre
665    
666    checkpoint50c_post
667    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
668    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
669    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
670    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
671    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
672    
673    checkpoint50c_pre
674    Merging from release1_p13:
675    o bug fix for pkg/seaice dynamic solver
676    o Added SEAICE_initialHEFF to pkg/seaice
677    
678    checkpoint50b_post
679    o store u*,v* in gU,V instead of in guNm1,gvNm1
680    o in order to put the momForcing out of the Adams-Bashforth:
681      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
682      to timestep.F
683    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
684    o re-generate output for highly sensitive test-exp:
685       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
686    
687    checkpoint50b_pre
688    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
689    o corrected CPP option mismatch in exf_Bulk... functions for case
690      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
691    
692    checkpoint50a_post
693    o Bug fix for merging between c50 and KPP.
694      ikey was passed from thermodynamics to kpp_calc via
695      common block rather than being recomputed in kpp_calc,
696      in contradiction with new key itdkey.
697      New key ikppkey created, and tamc.h headers updated.
698    
699    checkpoint50
700    - 2nd step of merge with ecco-branch:
701      merge changes in ecco-branch back into main trunk
702    - bug fix in find_alpha
703    - more storing in gmredi_calc_tensor.F, kpp_routines.F
704    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
705    - merged some sliced AD support routines
706    
707    checkpoint49
708    merged from ecco-branch:
709    o exf:
710      - Enable initialisation of forcing fields to constant
711        (runtime) values.
712      - in exf_getffields.F
713        Reduce i-/j-loop to interior domain, discarding overlaps.
714        That also fixes wrong TAF-key computations for key_1, key_2
715        with bulf formulae.
716      - exf_init.F modify #ifdef for exf_init_evap
717      - exf_getffieldrec.F, ctrl_getrec.F
718        The following INT-usages are not safe:
719          fldsecs  = int(fldsecs/fldperiod)*fldperiod
720          fldcount = int(fldsecs/fldperiod) + 1
721        and were modified.
722    o autodiff: checkpoint_lev...
723      - updated storing for bulk formulae (some arrays were missing)
724      - added state for seaice package
725      - synchronized with main branch
726    o DIVA:
727      Modif.s in
728      - the_main_loop.F
729      - the_model_main.F
730      and added cost_final_restore.F cost_final_store.F
731      o With these changes, it is possible to fully separate
732        the first forward run to compute the cost function (mdthe_main_loop)
733        and adjoint runs over individual DIVA intervals (adthe_main_loop)
734        into separate model executions.
735        This enables better tuning of DIVA to given queue sizes.
736      o Loss of cost function value in consecutive DIVA runs is
737        fixed by storing to 'costfinal' file.
738      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
739        beginning/end of adjoint integration is accounted for.
740      The current changes apply to TAF-1.4.26.
741      TAF has one remaining bug, requiring one manual change
742      (see MITgcm manual).
743    o cal: synchronized between MAIN and ecco-branch
744    
745    checkpoint48i_post
746    o Changes to restore differentiability of code w.r.t. previous tag
747      (mostly adding new routines to make list and replacing
748      pressure by totPhiHyd).
749    o Updated and merged grdchk package
750      - has both ADM and TLM checks
751      - works for single- and multi-proc.
752      - output cleaned
753      - worked successfully for parallel DIVA
754    o genmake:
755      - Adding -platform=SP4
756      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
757    o Modif. for DIVA:
758      ctrl_unpack should not be called in intermediate DIVA interval.
759      (similar thing would apply for active files such as
760      tbar, sbar, psbar, which should not be reinitialised;
761      only relevant for ecco-branch)
762    
763    checkpoint48h_post
764    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
765    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
766    o Added SEAICE_initialHEFF to pkg/seaice
767    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
768    
769    checkpoint48g_post
770    --- EOS:
771    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
772      store total Potential in totPhyHyd for diagnostics & EOS.
773    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
774    --- Pressure/geopotential gradient:
775    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
776    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
777      ( changes results of global_ocean_pressure )
778    o NLFS + z-coord.: add eta*Rho' contribution.
779    o accurate phiHyd when using interface-W at the middle between 2 centers
780     ( changes results of ideal_2D_oce )
781    o includes r* 2nd term in potential gradient.
782    
783    checkpoint48f_post
784    Merging from release1_p12:
785    o Modifications for using pkg/exf with pkg/seaice
786      - improved description of the various forcing configurations
787      - added basic radiation bulk formulae to pkg/exf
788      - units/sign fix for evap computation in exf_getffields.F
789      - updated verification/global_with_exf/results/output.txt
790    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
791      (SBO) core products, including oceanic mass, center-of-mass,
792      angular, and bottom pressure (see pkg/sbo/README.sbo).
793    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
794      to avoid negative values in shallow regions.
795      - updated verification/natl_box/results/output.txt
796      - updated verification/lab_sea/results/output.txt
797    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
798    o Added useSingleCpuIO option (see PARAMS.h).
799    o Updated useSingleCpuIO option in mdsio_writefield.F to
800      work with multi-field files, e.g., for single-file pickup.
801    o pkg/seaice:
802      - bug fix in growth.F: QNET for no shortwave case
803      - added HeffFile for specifying initial sea-ice thickness
804      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
805    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
806      kpp_transport_t.F, forward_step.F, and the_main_loop.F
807    o pkg/seaice:
808      - adjoint-friendly modifications
809      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
810    
811    checkpoint48e_post
812    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
813    o dynamics: change definition of computational domain & adapt mom_fluxform
814      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
815    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
816        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
817        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
818        global_ocean.90x40x15 global_with_exf global_ocean_pressure
819        inverted_barometer solid-body.cs-32x32x1
820      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
821    
822    checkpoint48d_post
823    o in preparation for r*:
824     a) use pre-computed gradient of hydrostatic potential:
825        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
826     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
827        => affects results of glob_oce_pressure (different truncation error)  
828      update output.txt of ideal_2D_oce & global_ocean_pressure
829    
830    checkpoint48d_pre
831    o in preparation for r*:
832      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
833      pass the 2 comp. of the grad. as arguments to momentum S/R.
834      but for the moment, only used if it does not change the results.
835    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
836    
837    checkpoint48c_post
838    Modifications in treatment of initial flux forcing controls
839    to avoid extra storing of flux fields.
840    
841    checkpoint48c_pre
842    o Added tidal_basin_2d experiment (currently 1D!)
843    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
844    
845    checkpoint48b_post
846    o r* coordinate added in #ifdef NONLIN_FRSURF block.
847     (modification to pressure gradient not yet implemented)
848    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
849      (for U & V) that are used for vertical advection of momentum.
850    
851    checkpoint48a_post
852    o In preparation for r*, use temp. array to compute vertical transport
853       in flux-form momentum pkg. => change results of few test-exp.
854      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
855                        lab_sea, natl_box & plume_on_slope
856    
857    checkpoint48
858    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
859    
860    checkpoint47j_post
861    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
862    o moved adexch from forward_step to addummy_in_stepping
863    o added exch in ctrl_map_...
864    o aveFreq.=0. at end of cost_final to avoid overwrite in
865      reverse checkpointing loop
866    o Yet more changes in gmredi:
867      * adgmredi_calc_tensor
868        avoiding all recomputation of gmredi_slope_limit
869      * adgmredi_x/y/rtransport
870        added flag for excessive storing to avoid recomp. of
871        u/v/rtans, dTdx/y/z
872        -> this is not really necessary and very memory-consuming
873      * adgmredi_slope_psi:
874        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
875      * gmredi_slope_limit
876        re-activated full calculation of taperfct for case 'ac02'
877    o updating verification/ adjoints of carbon, global_ocean.90x40x15
878    
879    checkpoint47i_post
880    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
881    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
882      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
883    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
884    o gmredi: fix few bugs.
885    
886    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
887    This will be a good checkpoint to plug into the ecco-branch.
888    o few modif.'s to get latest version adjointed
889      (mainly kick out code in ini_linear_phisurf)
890    o modif's to run adjoint with exactConserv
891    o case GM_BOLUS_ADVEC should be cleaned
892      S/R gmredi_slope_psi should be cleaned
893    o verification/carbon now has exactConserv=.TRUE.
894    
895    checkpoint47g_post
896    o time-average AIM output: becomes independent from statvars time-average
897      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
898    o After TAF bug fix:
899      Tested adjoint of gmredi package.
900      Tests were done with checkpoint47 rather than with latest
901      checkpoint47f_post since the latter is broken for the adjoint
902      verification/carbon/ contains both ADM and TLM gradient checks.
903    Here they are, before they get changed/lost/stolen.
904    Mostly modif.'s to fix numerical sensitivities.
905    Gradient checks OK for
906    - GM_taper_scheme:
907      * clipping
908      * ac02
909      * linear
910      * glw91
911      * dm95
912      * ldd97
913    - GMREDI_OPTIONS:
914      * GM_VISBECK_VARIABLE_K
915      * GM_NON_UNITY_DIAGONAL
916      * GM_EXTRA_DIAGONAL
917      * GM_BOLUS_ADVEC
918    in conjunction with data.gmredi parameters to be checked in
919    in a few minutes under verification/carbon/code/
920    
921    checkpoint47f_post
922    Merging from release1_p10:
923    o modifications for using pkg/exf with pkg/seaice
924      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
925        and SEAICE_EXTERNAL_FLUXES
926      - pkg/exf CPP options EXF_READ_EVAP and
927        EXF_NO_BULK_COMPUTATIONS
928      - usage examples are Experiments 8 and 9 in
929        verification/lab_sea/README
930      - verification/lab_sea default experiment now uses
931        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
932    
933    checkpoint47e_post
934    o created a tag prior to creating a branch
935    
936    checkpoint47d_post
937    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
938      at the bottom boundary had an erroneous half slip boundary condition
939    o added bottom drag and no slip boundary condition capabilities to
940      oceanic pressure coordinates code
941    o added new verification experiment global_ocean_pressure, this experiment is
942      also described in the tutorial section of the manual
943    checkpoint47d_pre
944    
945    checkpoint47c_post
946    o Added a verification experiment for a global cubed-sphere ocean run
947      -  verification/global_ocean.cubed32x32x30
948      -  uses pkg/therm_seaice and pkg/bulk_forcing
949    
950    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
951    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
952      when using P-coordinate; only implemented for atmospheric config.
953    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
954      NOTES: requires option NONLIN_FRSURF to be "#define".
955    o update advect_xz/results/output.txt (left from checkpoint44g_post)
956    
957    checkpoint47b_post
958    Merging from release1_p9:
959    o pkg/seaice
960      - removed GOTO's and added taf directives
961      - double precision constants to reduce the g77 (Linux)
962        to F77 (SGI) differences reported in release1_p8
963    o tools/genmake
964      - added SGI options
965    o verification/testscript
966      - updated to that of checkpoint47a_post
967    o verification/global_ocean.90x40x15/input/eedata
968      - modified for SGI f77 compatibility
969    o verification/lab_sea
970      - added description of sea-ice model
971      - added missing matlab routines
972      - added test of thermodynamics parallelization
973    
974    checkpoint47a_post
975    o new pkg: aim_v23
976     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
977       for now, keep the same surface forcing as before.
978     - Part-Cell implemented into AIM; check that Heat & Water are conserved
979     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
980     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
981    o add diagnostic of surface correction term in monitor output
982    
983    o bulk_force and therm_seaice
984    - Two packages:  bulk_force (Bulk forcing)
985      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
986    - Earlier integration from Stephaine Dutkiewicz
987      and Patrick Heimbach.
988    - Two ifdef statements for compile time,
989       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
990    
991    checkpoint47
992    differentiable version of checkpoint46n_post
993    o bug fix in quasihydrostaticterms
994    o * "clean" adjoint code (in terms of extensive recomputations)
995        can now be obtained for all GMREDI options (i.e. for
996        - GM_VISBECK_VARIABLE_K
997        - GM_NON_UNITY_DIAGONAL
998        - GM_EXTRA_DIAGONAL
999        - GM_BOLUS_ADVEC )
1000      * However, wrong gradient check problem remains unsolved.
1001      * New CPP options have been introduced for different
1002        tapering schemes
1003    o external_fields_load now part of differentiation list
1004    o pressure needs multiple storing;
1005      would be nice to have store_pressure at beginning or
1006      end of forward_step, e.g. by having phiHyd global (5-dim.)
1007      (NB: pressure is needed for certain cases in find_rho,
1008      which is also invoked through convective_adjustment).
1009    o recomputations in find_rho for cases
1010     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1011    o #define ATMOSPHERIC_LOADING should be differentiable
1012    o ini_forcing shifted to begining of initialise_varia
1013    o Incorporating QNVS line search routines into MITgcm
1014      (this is separate code, and therefore not under pkg)
1015      lsopt/, optim/
1016    o Updated verification/carbon/
1017      - #define GM_VISBECK_VARIABLE_K
1018      - GM_taper_scheme    = 'ldd97'    
1019    
1020    checkpoint46n_post
1021    Merging from release1_p8:
1022    o verification/natl_box:
1023      updating new external_fields_load routine
1024    o New package: pkg/seaice
1025      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1026      The sea-ice code is based on Hibler (1979-1980).
1027      Two sea-ice dynamic solvers, ADI and LSR, are included.
1028      In addition to computing prognostic sea-ice variables and diagnosing
1029      the forcing/external data fields that drive the ocean model,
1030      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1031      The implied surface heat flux is then stored in variable
1032      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1033      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1034      non-local transport term.  Because this call precedes model
1035      thermodynamics, temperature under sea-ice may not be "exactly" at
1036      the freezing point by the time theta is dumped or time-averaged.
1037      N.B.: fairly large differences in accuracy occur across
1038            different platforms/compilers; comparison between
1039            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1040            generated output gives:
1041       T           S           U           V
1042      C D M    c        m  s        m  s        m  s        m  s
1043      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1044      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1045      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1046    
1047      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1048    o GAD:
1049      - generated new common blocks to account for call of
1050        same gad routines with differing traceridentities
1051        (needed to modify tracerIdentity indices in GAD.h)
1052      - generated separate common blocks for case useCubedSphereExchange
1053        (Department of Futurology)
1054      - parameter lists to gmredi_?transport: added tracerIdentity
1055      - added new key indices to tamc.h
1056    o external_fields_load:
1057      - added this routine to TAF list
1058      - needed to make some common blocks global and additional storing
1059        along the same lines as exf package (checkpoint_lev?_directives.h)
1060    o exf:
1061      updated external forcing package
1062      - bug fixes carried over from ecco-branch
1063        (missing OBCS_OPTIONS.h in two routines)
1064      - enable easy to use "no forcing".
1065      - added exf I/O for atmospheric loading
1066      - added exf I/O for runoff data
1067      - transfered scaling between exf <-> MITgcm to exf namelist
1068    o Adding new verification experiment global_with_exf.
1069      This verification experiment is almost identical to the
1070      global_ocean.90x40x15 experiment, except that it uses
1071      the exf (and cal) package instead of the
1072      external_fields_load routine (cf README file).
1073    
1074    checkpoint46m_post
1075    o modified testscript to return -- when there are no lines of "%MON" output
1076    o added new flag "quasiHydrostatic" for QH mode
1077      and new routine quasihydrostaticterms()
1078    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1079      New routine: mom_u_coriolis_nh()
1080    o fixed sign of non-hydrostatic metric terms in u and v equations.
1081      Depend on correct sign of gravitySign.
1082    o added work.pc* to .cvsignore in aim directories using ifc
1083    o introduced flag for controllin non-hydrostatic metric terms
1084    o removed gravitySign from PARM04
1085    o switched to g77/ifc from pgf77 in aim experiments
1086    
1087    checkpoint46l_post
1088    o made convective adjustment work with pressure coordinates:
1089     - changed the direction of k-loop in convective_adjustment.F for the
1090       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1091     - adjusted the reference pressure k-index in convective_adjustment.F
1092     - adjusted the convection condition in convect.F (in analogy to
1093       calc_ivdc.F)
1094     - convective_adjustment no longer computes anything on the halos
1095     - removed the warnings about negative salinity from find_rho.F and
1096       find_alpha.F; instead the new routine look_for_neg_salinity, called
1097       at the beginning of find_rho, find_alpha, and find_beta, does a
1098       check of the entire slice, if CPP-option
1099       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1100    checkpoint46l_pre
1101    
1102    checkpoint46k_post
1103    o fixed the verification/global_ocean.90x40x15 experiment:
1104     - new bathymetry (the world according to A., JMC, and M.)
1105     - new initial fields and forcing fields (*.bin files)
1106     - new POLY3.COEFFS (for the next release one should switch to a full
1107       equation of state: JMD95P or MDJWF)
1108     - fixed several errors and redundancies in the data file
1109     - experiment uses looped cells
1110     - added matlab directory with diagnostic scripts for plotting of output
1111    
1112    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1113     - read AIM physics parameters from a file (data.aimphys)
1114     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1115    
1116    checkpoint46j_post
1117    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1118    o move wVel computation at the end of the time step, in S/R integr_continuity
1119    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1120    o update timeave pkg for wVel diagnostic.
1121    checkpoint46j_pre
1122    
1123    checkpoint46i_post
1124    o Clean up AIM package (and keep the results unchanged):
1125      include CPP_OPTION and use IMPLICT NONE in all routines ;
1126      declare all the variables _RL ; use _d 0 for all numerical constants.
1127      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1128    
1129    checkpoint46h_post
1130    o cleaned up the use of rhoNil and rhoConst.
1131      - rhoNil should only appear in the LINEAR equation of state, everywhere
1132        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1133        and the dynamical equations are all divided by rhoConst
1134    o introduced new parameter rhoConstFresh, a reference density of fresh
1135      water, to remove the fresh water flux's dependence on rhoNil. The default
1136      value is 999.8 kg/m^3
1137    o cleanup up external_forcing.F and external_forcing_surf.F
1138      - can now be used by both OCEANIC and OCEANICP
1139    checkpoint46h_pre
1140    
1141     Added code to convert surface volume flux (fresh water) into
1142     a mass flux when using P coordinates in the ocean (OCEANICP).
1143     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1144    
1145    checkpoint46g_post
1146    o Include a new diagnostic variable phiHydLow for the ocean model
1147      - in z-coordinates, it is the bottom pressure anomaly
1148      - in p-coordinates, it is the sea surface elevation
1149      - in both cases, these variable have global drift, reflecting the mass
1150        drift in z-coordinates and the volume drift in p-coordinates
1151      - included time averaging for phiHydLow, be aware of the drift!
1152    o depth-dependent computation of Bo_surf for pressure coordinates
1153      in the ocean (buoyancyRelation='OCEANICP')
1154      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1155        Theta, Salinity, and Pressure in the parameter list. This routine is
1156        presently contained in find_rho.F. This routine does not give the
1157        correct density for 'POLY3', which would be a z-dependent reference
1158        density.
1159    o cleaned up find_rho
1160      - removed obsolete 'eqn' from the parameter list.
1161    o added two new verification experiments: gop and goz
1162      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1163    checkpoint46g_pre
1164    
1165    checkpoint46f_post
1166    o Enable tangent linear (forward mode) gradient checks:
1167      - extended active file handling to g_... files
1168      - added TANGENT_SIMULATION to theSimulationMode
1169      - extended grdchk package accordingly
1170    o added tangent linear setup in verification/carbon/code_ftl
1171    o added adjoint setup in verification/front_relax/code_ad
1172    
1173    checkpoint46e_post
1174    o Added new equation of state -> MDJWF
1175      - EOS of McDougall et al., 2002, JAOT, submitted
1176      - caveat: the equation of state is only valid for a smaller (more
1177        realistic?) range of values than JMD95P/Z and UNESCO
1178      - added masks to the calculation of pressure in store_pressure
1179      - added more check values for density in check_eos (ini_eos.F), some of
1180        the old check values are out of the range of the MDJWF-eos, so don't
1181        expect perfect matches for those
1182    checkpoint46e_pre
1183    
1184    checkpoint46d_post
1185    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1186      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1187      case of pressure coordinates. eosType='JMD95Z' in
1188      combination with buoyancyRelation='OCEANICP' now causes an error.
1189    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1190      in find_alpha/beta.
1191    checkpoint46d_pre
1192    
1193    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1194      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1195    
1196    checkpoint46c_post
1197    o Changes necessary for ocean in p-coordinates
1198     -  Added new buoyancy relation = 'OCEANICP'
1199     -  Added new parameters = gravitySign (this used to be contained inside
1200        the factor dRdZ which I added when we first switched to R coordinates).
1201     X GM/Redi is not compatible (yet)
1202     X bottom drag and no-slip need to be debugged.
1203    checkpoint46c_pre
1204    
1205    checkpoint46b_post
1206    o Added new equation of state -> JMD95Z and JMD95P
1207      - EOS of Jackett and McDougall, 1995, JAOT
1208      - moved all EOS parameters into EOS.h
1209      - new routines ini_eos.F, store_pressure.F
1210    o Added UNESCO EOS, but not recommended because it requires
1211      in-situ temperature (see JMD95)
1212    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1213      unesco.f to be used with POLY3
1214    checkpoint46b_pre
1215    
1216    checkpoint46a_post
1217    o Added (atmospheric) pressure loading
1218      - new field in FFIELDS.h, etc...
1219      - new cpp flag ATMOSPHERIC_LOADING
1220    o Changed hFacC to _hFacC in calc_phi_hyd.F
1221    o Added SHORTWAVE_HEATING to some files for consistency
1222    checkpoint46a_pre
1223    
1224    checkpoint46
1225    further merges from release1_p5
1226    o new ctrl package
1227      - adopted from ECCO environment to enable optimization
1228      - added Eliassen Palm fluxes to controls
1229    o added Eliassen Palm flux controls to gradient check package
1230    o cost package
1231      - Compatible with new ctrl package
1232      - added Eliassen Palm cost hooks
1233      - modif's of existing cost functions
1234    o Adjoint-related bug fixes in kpp:
1235      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1236      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1237    o autodiff package
1238      - flow directives:
1239        + new for S/R do_the_model_io
1240        + enhanced for S/R checkpoint
1241        + new gmredi.flow
1242      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1243        disable adcommon.h/g_common.h by default.
1244      - fixed problem for adjoint of global_max
1245    o modified verification/carbon/
1246    o New setup for adjoint of global_ocean
1247    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1248    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1249    o incorporated hooks for sponge layer code (external_forcing.F)
1250    
1251    checkpoint45d_post
1252    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1253    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1254      (affects plume_on_slope "cg2d" output)
1255    o add new parameter deltaTfreesurf for free-surface time stepping
1256    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1257    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1258    o change phiMin in exp1 (to agree with documentation)
1259    o add new flags:
1260     - T,S forcing inside/outside Adams-Bashforth
1261     - turn off temp,salt advection and/or forcing
1262     - for each tracer, define internal flag for multiDimAdvection & A-B
1263    o monitor: change definition of KE to check conservation of Energy
1264    
1265    checkpoint45c_post
1266    o Removed f90 comments ("!")
1267    o Modified initialisations to enable exf package for MITgcm
1268      (without invoking ECCO_PACKAGE).
1269    o modifications to gradient check package (Martin Losch)
1270      - enable centered differences
1271      - modified format of standard output
1272    
1273    checkpoint45b_post
1274    o cleaned exchange calls in cg2d
1275    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1276    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1277      to configure barotropic setup (Martin Losch)
1278    o moved some initialisations within bi,bj loop in dynamics
1279      (TAF flow dependency)
1280    o in initialise_varia, moved call packages_init_variables
1281      before convective_adjustment_init
1282      (corresponding adjustment of TAF tape initialisation).
1283    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1284    
1285    checkpoint45a_post
1286    o compute Rho over the whole domain (extend iMin,jMin indices)
1287    o specific exchange for X-slice domain (case Ny=1)
1288  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1289  o solve_for_pressure : set cg2d_x to zero where OBCS are applied  o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1290    

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