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revision 1.66 by jmc, Tue Mar 5 15:36:06 2002 UTC revision 1.294 by adcroft, Fri May 14 17:43:06 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o created pkg/mom_common in preparation for variable viscosity code
7    o renamed and split ini_mnc_io
8    o pkg/land: only liquid water can diffuse or run-off
9    o AIM using land: soil wetness availability account for snow
10    o added printMapIncludesZeros to EEPARMS namelist
11    
12    checkpoint53a_post
13    o restore TAMC compatiility for exf_constants.h
14      (no usage of _d in .h)
15    o Additional storing in KPP in an attempt to fix
16      TAMC problem with adjoint of KPP code.
17      (no success...)
18      Identical code works fine with TAF.
19    o Fixed verification/natl_box_adjoint experiments.
20      Initial conditions for Experiments 4 and 5 are now
21      set to "SEAICE_initialHEFF=0", which is more reasonable,
22      and hence gives results closer to that of Experiment 2.
23      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
24    
25    checkpoint53
26    o stable checkpoint with up to date adjoint
27      TLM tests only run for 1st grdchk at the moment. Its unclear if
28      this is a code problem or a problem with resetting code for g_
29      variables that is being autogenerated wrong.
30      Otherwise:
31       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
32       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
33         are both still in chaos following their security messes.
34    
35    checkpoint52n_post
36    o various build (mostly genmake2) changes including:
37      - ability to build/run more easily within Cygwin and MacOS X
38      - more complicated Makefiles with a stronger dependence on Gnu Make
39    o pkg/seaice modifications
40      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
41        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
42        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
43      - changed proxy for geostrophic velocity and updated
44        verification/lab_sea/results/* accordingly
45      - removed ADI dynamic solver from pkg/seaice
46      - replaced all occurrences of 1/CSTICE or 1/CSUICE
47        they caused a segmentation fault under certain circumstances
48      - removed unused field WATR
49    o bug fix in exf-package:
50      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
51         now reflect that.
52    o small fixes in the cal-package:
53      - set reference date to first of January for the 'model'-calendar
54      - failing of cal_CheckDate in cal_FullDate now actually results in a
55        warning
56    o small modifications in exf-package to increase flexibility:
57      - change climtempfreeze from a constant to a runtime parameter that
58        is specified in data.exf_clim (default = -1.9)
59      - introduce runtime parameter windstressmax (default = 2.0) that is
60        specified in data.exf
61    o fix in pkg/thsice:
62      - update Evap (Tsf changes) to be consistent with Latent heat flux
63      - maintain snow precipitation unchanged (even if Tsf >=0).
64     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
65    
66    checkpoint52m_post
67    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
68      this does not change any of the results, because myIter=0 in swfrac always
69      lead to jwtype=2 (the default anyway), but the call makes little sense
70      as a default
71    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
72    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
73      atmospheric model (AIM) to use it ; add a "slab ocean" component.
74    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
75    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
76    o extending useSingleCpuIO option to work with new exch2 I/O format
77      - old-style, missing-tile I/O is still accessible by defining CPP
78        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
79    o monitor package can write to NetCDF files and/or STDOUT
80    o fix re-definition bug in MNC_GRID_INIT_ALL()
81    o doc/api_reference added
82      - a framework for building an API Reference Manual using all
83        the "protex" comments embedded in the code
84      - see pkg/generic_advdiff, pkg/mnc for examples
85    o MNC:
86      - make myThid the last argument for all subroutines
87      - new default for the grid files: NO halos
88      - add useMNC and other run-time flags
89      - separate per-file-group handling of the unlimited dimension
90      - early initialization of MNC w/ flags read at the eeboot stage
91        and lookup tables set in initialize_fixed
92      - write all MNC output to a freshly-created directory
93    o thermodynamics sea-ice (thsice) is now tested with testreport.
94    o test exp. advect_cs: use the standard cs32 grid ; update output.
95    o Added functionality to grdchk:
96      pick global i,j,k position (or nearest wet) where to perform check.
97    
98    checkpoint52l_post
99    o new land formulation:
100      a) use ground enthalpy as prognostic variable to ensure exact
101         energy conservation.
102      b) account for water temperature and for latent heat of freezing
103         in all processes (rain, run-off, ground storage)
104      c) compute surface and ground temperature implicitly.
105    o aim_v23 modification for new land model:
106      a) Treat separately land / ocean / sea-ice surface fluxes
107         to allow implicit computation of land & sea-ice surface temp.
108      b) add snow precipitation.
109    checkpoint52l_pre
110    
111    o fix problem (when 1 tile is empty) in min/max monitor.
112    o fix bug in timeAve (u,vZetatave in common block)
113    o no restoring terms under ice for pkg/seaice
114    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
115    o bug fix for pkg/seaice pickups
116    o change MNC call locations and add coordinate attributes
117    o mask vorticity at the corner ; affects global_ocean.cs output
118    o fix ini_curvilinear_grid ; test CS experiments with mpi
119    o aim.5l_cs: modify sea-ice fraction input file ; update output
120    o exf: Adding simple range check routine for exf fields after read
121    
122    checkpoint52k_post
123    o removed top-level directory "diags"
124      - we migrated these functions to pkg/timeave a long time ago
125    o fixed bug introduced in pkg/monitor
126    o accuracy ctrlprec = 32 insuffient for gradient checks using
127      averaged fields (I/O via cost_averages)
128      -> use ctrl.h in active_file*.F to control I/O precision.
129    o paramter list of CALL ADTHE_MAIN_LOOP
130    o added initial do_the_model_io to ecco
131    o set all ...Freq to zero after cost_final
132      taveFreq, dumpFreq, pChkptFreq
133    o MAIN and ECCO differentiability restored
134    
135    checkpoint52j_post
136    o fix nchklev in tamc.h for global_ocean...
137    o Bringing flow and store directives up-to-date
138    o Really weird thing!
139      call do_the_model_io from the_main_loop with parameters
140      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
141      TAF places a faulty re-call of initialise_varia
142      after cost_final call which should not be there!
143    checkpoint52j_pre
144    
145    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
146      error messages
147    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
148    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
149      debug output
150    o modfied mdsio_writefield.F to handle non-global files under exch2
151    o update AIM Cubed-Sphere exp (aim.5l_cs):
152      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
153    o update AIM Equatorial Channel exp:
154      use standard aim_v23 pkg and change the SST fields to be more realistic.
155    o globalFile now works with exch2
156    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
157      mon_vort3.F to make exch2 friendly with >1 tile per cube face
158    o limit timeave output for hi-res integrations
159    
160    checkpoint52i_post
161    o removed CPP_EEOPTIONS.h from verification/*/code
162    o updated the tiling for global_ocean_pressure
163    checkpoint52i_pre
164    
165    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
166      the old pkg/aim).
167    
168    checkpoint52h_pre
169    o shortened offending lines in exch2_send_rx?.template
170    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
171    o genmake2: add build & execute test for NetCDF code
172    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
173      old grid files, moved CPP_EEMACROS.h to pkg/exch2
174    o added useSingleCPUIO flag to monitor.F and mon_out.F
175    o added temporary hack for sea-ice dynamics on the cube:
176      metric terms are ignored and it is assumed that
177      there is no sea-ice on cube faces 1, 2, 4, and 5.
178    
179    checkpoint52f_post
180    o added exch2 cube routines to pkg/exch2
181    o modified hs94.cs-32x32x5 to use it
182    o added new grid files to hs94.cs-32x32x5
183    checkpoint52f_pre
184    
185    checkpoint52e_post
186    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
187      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
188    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
189      to work with implicit vertical advection and AB ;
190    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
191    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
192     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
193    checkpoint52e_pre
194    
195    o fix bug in impldiff when Nr=1 or Nr=2.
196    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
197    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
198    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
199      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
200    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
201    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
202    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
203    
204    checkpoint52d_post
205    o re-tiled many expts to allow comparison in multi-processor mode
206      - updated output accordingly
207      - changed hs94.128x64x5 to use intial T from file rather than use the
208        random number generator
209    o add infrastructure in model routines for fizhi and gridalt packages
210    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
211    o changes to permit hi-res, cubed-sphere, configuration
212      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
213      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
214      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
215        of surface winds for the cube
216      (A verification experiment, based on global_ocean.cs32x15, but with
217       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
218       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
219       complete with example surface forcing files and matlab scripts to look
220       at the output and compare it with that of global_ocean.cs32x15.)
221    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
222       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
223       to conform to the common rule.
224    o check-in the first version of the coupler + interfaces for multi-components
225       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
226       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
227       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
228       - ocean and atmos. share the same horizontal grid (no interpolation).
229       - exchanges between component and coupler is done in forward_step
230    o new verification experiment, cpl_aim+ocn:
231       coupled ocean - AIM atmosphere on cs32 grid.
232    
233    checkpoint52d_pre
234    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
235    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
236    
237    checkpoint52c_post
238    o Fixing OPTIONS files for use of exf:
239      - ALLOW_ECCO not needed
240      - ECCO_CPPOPTIONS.h should not be included from
241        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
242        as has been the case in the past
243      - All cal/exf related options are currently set in
244        single header file. Should remain so until we
245        agree on a consistent new policy.
246    o Removed all CPP options for cal package.
247      cal has no more CPP options.
248    o modified STOREs in GAD_ADVECTION
249    o corrected key comp. for passkey
250    
251    checkpoint52b_post
252    o new version: "thsice" of thermodynamic sea-ice pkg:
253     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
254     - modify fluxes but do not change theta directly;
255     - light cleaning of bulk_force pkg (still needed with thsice).
256     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
257       + output_thsice.txt to test thsice & bulk_force pkgs.
258    o put back grid & coriolis monitor output.
259    checkpoint52b_pre
260    
261    o call "do_the_model_io" at the beginning (=> dump initial state)
262    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
263    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
264      (need info on NUMBER_OF_PTRACERS)
265    o missing PTRACERS headers in some routines
266    o default tamc.h in pkg/autodiff supposed to crash
267      to ensure proper customization
268    
269    checkpoint52a_post
270    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
271      - moved surfaceTendencyTice from pkg/seaice to main code
272      - subroutine FREEZE_SURFACE now limits only surface temperature
273        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
274        => new output.txt for global_ocean.cs32x15 & global_with_exf
275      - keep the old version of FREEZE for backward compatibility;
276        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
277      - corresponding modifs for TAF directives
278    o added surface flux output variables to TIMEAVE_STATVARS
279    o time-averaged output for pkg/ptracers
280    o fix problem with ECCO-related divided adjoint
281      snapshot file was missing some ad-variables,
282      but no warning issued by TAF
283    
284    checkpoint52a_pre
285    o some bug fixes for #undef REAL4_IS_SLOW
286    
287    checkpoint52 = ecco_c52_e35
288    o after testing adjoints of checkpoint51u_post
289    
290    checkpoint51u_post
291    o this is the post-merge tag of the ecco-branch
292      (needs another clean checkout and re-testing)
293    o various natl_box_adjoint configs and results
294      but no input fields
295    o obcs adjoint not yet merged!
296    o adding ECCO global 1x1 and 2x2 degree configs
297    o updated/extended some store directives for seaice
298    o pkg/ecco now containes ecco-specific part of cost function
299    o top level routines the_main_loop, forward_step
300      supersede those in model/src/
301      previous input data.cost now in data.ecco
302      (new namelist ecco_cost_nml)
303    o in ctrl/ cleaned some cross-dependencies and updated CPP options
304    
305    checkpoint51t_post
306    o this is the pre-merge tag of the ecco-branch
307    
308    checkpoint51s_post
309    o cleanup: removed various obsolete #define-s
310    o pkg/grdchk
311      - renamed 'ph-grd 3' to 'grad-res'
312      - merged from ecco-branch
313        (remaining bug fixes for obcs gradient checks)
314      - additional high-precision output for testreport
315        (grep for 'precision_grdchk_result')
316    
317    checkpoint51r_post
318    o cleaned up or removed CPP_OPTIONS.h files
319    o updated results for some of the tests to reflect the new
320      optfiles (-ieee: -O0 instead of -O3)
321    
322    checkpoint51q_post
323    o cd_code:
324      - moved cd_scheme.F -> cd_code_scheme.F
325      - separate read_checkpoint from cd_code_ini_vars.F
326      - separated cd_code part from write_checkpoint
327      - updated AD_SOURCE, generated .flow
328      - added CD_CODE_VARS.h to the_main_loop
329      - Moving cd_code specific store dir.s to pkg/cd_code
330    o ctrl package totally restructured
331      - pack/unpack now optional and decoupled from
332        xx_/adxx_ I/O
333      - ctrl_pack/unpack cleaned
334        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
335      - confined inclusion of AD_CONFIG.h to where necessary.
336    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
337    
338    checkpoint51p_post
339    o create initial cd_code package
340      - WARNING: the initialization of fields within packages
341        is broken because INI_FIELDS (where READ_CHECKPOINT is
342        called) is called *before* PACKAGES_INIT_VARIABLES.
343        This seems to be backwards since
344        1) its important to initially zero the entire field including
345           the "halo" region
346        2) zeroing needs to be done *before* reading pickup info
347           and the pickup call might or might not happen in any
348           particular run
349      - this needs an overhaul for R2
350    o cleanup verification/*/code/GMREDI_OPTIONS.h
351    o cleanup testreport
352    
353    checkpoint51o_post
354    o bringing AD-related verif's up to date with genmake2
355      - carbon/
356      - global_ocean.90x40x15/
357      - hs.94.1x64x5/
358      - (front_relax/ )
359    o (more) consistent directory structure for AD-related verif.'s
360    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
361    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
362    o bug fix in find_alpha.F for MDJWF:
363      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
364        change rho -> rho-rhoConst
365      - replace call find_rho to find_rhonum
366    o initialisation of rFlx extended to full array (required by TAF)
367      and shifted to thermodynamics
368    o removed PTRACERS.h in ptracers routine
369    o added surfacetendencyPtr to S/R parameter list pracers_forcing
370    o Correcting initialisations for fVerU, fVerV.
371    o helping TAF to recognize dependency on kUp for
372      fVerU, fVerV
373    o Replacing delZ by delR in pkg/ctrl/
374    checkpoint51o_pre
375    
376    o undid all of cp51 pending some cleanups and discussion
377    o added the [#include "AD_CONFIG.h"] statement to all files that need
378       it for adjoint/tl #defines
379     o re-worked the build logic in genmake2 to support AD_CONFIG.h
380     o removed tools/genmake since it no longer works
381    
382    checkpoint51n_post
383    o modifications to make FREEZE flux visible to pkg/kpp
384      - moved surfaceTendencyTice from pkg/seaice to main code
385      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
386      - subroutine FREEZE now limits only surface temperature
387        (this means new output.txt for global_ocean.90x40x15,
388         global_ocean.cs32x15, and global_with_exf)
389    o added surface flux output variables to TIMEAVE_STATVARS
390    
391    checkpoint51n_pre
392    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
393    o added [#include "AD_CONFIG.h"] to all files that use the following
394      defines:
395      - ALLOW_ADJOINT_RUN
396      - ALLOW_TANGENTLINEAR_RUN
397      - ALLOW_ECCO_OPTIMIZATION
398    
399    checkpoint51m_post
400    o incorporating changes to get TAMC/TAF working in genmake2
401      - added new TAMC/TAF targets to the Makefile
402      - various cleanups related to package handling
403      - these changes should have no impact on the forward model
404    
405    checkpoint51l_post
406    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
407     - faster algorithm for cal_addtime.F
408     - higher precision arithmetic, where needed
409     - pkg/exf *startdate variables changed from calendar date to
410       model integration time
411    
412    checkpoint51l_pre
413    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
414    o enable to apply restoring on S & T only in a latitude band.
415    o update output (external_forcing_surf modif. change truncation errors)
416       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
417    
418    checkpoint51k_post
419    o change default to: useNHMTerms=.FALSE.
420     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
421       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
422     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
423        exp1, ideal_2D_oce
424     - change data file of oceanic exp (leave the results unchanged for now)
425       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
426    o set gravitySign automatically according to the vertical coordinate used
427      (and change sign: back to "logical" value: +1 when R increases downward)
428    o added an include barrier to the default CPP_OPTIONS.h and
429      removed the #include "PACKAGES_CONFIG.h" from it
430    o fix a bug in mom_fluxform (from chk51j_post)
431    
432    checkpoint51j_post
433    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
434    o adjusted some flow directives (dynamics, thermodynamics)
435    o added cubed-sphere case to test cost function
436    o heckpoint_lev?_directives.h now include
437      pkg-specific directives, whenever those are enabled.
438    o Moving pkg-specific flow directives to corresponding pkg
439      Moving pkg-specific differentiation list to corresponding pkg
440      Moving pkg-specific checkpoint-lev storing to corresponding pkg
441      ---> conventions are
442           - pkg_ad.flow
443           - pkg_ad_diff.list
444           - pkg_ad_check_lev?_dir.h
445    
446    checkpoint51i_post
447    o merge of the branch-genmake2
448      - knowingly breaks the older genmake
449      - automatic generation of all ALLOW_${PKG_NAME} defines
450      - new testreport supersedes older testscript
451    o large number of package inclusion and header cleanups
452    checkpoint51i_pre
453    
454    o new output for adjoin of global ocean vector invariant
455    o fix for checkpoint of thermodynamic seaice and bulk_force
456    o Steph gchem various cleanups
457    
458    checkpoint 51h_pre
459    o fixed some single quotes
460    o modify gchem pkg to be more versatile
461    o modifications to clean up dic pkg
462    o add pkg/cfc
463    
464    checkpoint51g_post
465    o provide links for ARPACK and ADM*TLM
466    o start removing verification/vero/
467    o update AD-related stuff
468      (in particular some IF-statements in model/src/ routines)
469    o adding to verification/global_ocean.90x40x15/ adjoint of
470      vector invariant setup
471    
472    checkpoint51f_post
473    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
474    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
475      of tracer Green's fucntions for ocean inversion project.
476    
477    checkpoint51f_pre
478    o Added on-the-fly spatial interpolation capability
479        "USE_EXF_INTERPOLATION" to pkg/exf.
480      - This is a temporary Cartesian-grid hack until
481        the super-duper ESMF coupler becomes available.
482      - See verification/global_with_exf/README for usage example.
483      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
484        flags and modified pkg/seaice accordingly.
485    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
486        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
487        non-local transport term.
488    
489    checkpoint51e_post
490    o pkg/mom_vecinv:
491      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
492      - add time-ave diagnostic of vorticity advection.
493    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
494    o atmospheric geopotential: - include water vapor effect;
495                                - use p^kappa in p* scaling.
496    o land pkg: read initial state from files.
497    o AIM : add stratospheric drag in the upper level
498    
499    checkpoint51d_post
500    o change function ILNBLNK (=> last non-blank char.) to return zero
501      (instead of the string length) when the string. char is empty
502    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
503    o modif's to restore TAMC compatibility
504      - avoid "_d" constructs in PARAMETER declarations
505      - avoid interrupting lines by comment lines
506    o Use cluster local disks for purely local I/O
507      vs. globally visible disks needed for ctrl stuff
508      (merged from ecco-branch)
509      - new active_file_loc... and mdsio_..._loc routines
510      - affected packages: autodiff, ctrl, grdchk, mdsio
511    
512    checkpoint51c_post
513    o introducing integer flag debugLevel
514      - debLevZero: suppress all output
515      - debLevA: standard
516      - debLevB: equivalent to current debugMode=.TRUE.
517    o introducing pathname variable mdsioLocalDir for mdsio
518      that can be specified at runtime
519      (relevant for cluster I/O to local disk)
520    `
521    >>>checkpoint51b_post
522    adjoint of ptracers
523    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
524    o extended state in checkpoint_lev?, etc.
525    o alternative ctrl/cost with tr1 or ptracer
526    o new comlev1_bibj_ptracers
527    o new ptracers.flow
528    o made ptracers_forcing same as external_forcing_s
529    o added verification for adjoint with ptracers
530      - adm. grdchk fail so far
531      - tlm. grdchk OK
532      - checked tapelev/comlev recomputations: OK
533    <<<checkpoint51b_pre
534    
535    checkpoint51a_post
536    o added code for biogeochemistry package
537      - new pkgs: dic, gchem
538      - new subroutine in ptracers
539    o modify code for biogeo packages
540      - in model/src and pkg/ptracers
541    
542    checkpoint51
543    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
544      - autodiff, ctrl, exf, grdchk, seaice
545      kept separate packages
546      - cost, ecco, obcs
547    o updating verification/internal_wave, verification/lab_sea
548      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
549    
550    checkpoint50i_post
551    o Preparing next differentiable checkpoint and sync
552      of MAIN vs. ecco-branch
553      - 1st step: this one is differentiable
554      - 2nd step: next(! not this) checkpoint will have updated packages
555                  from ecco-branch)
556    
557    checkpoint50h_post
558    o new package "land": provide surface BC for AIM.
559    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
560    o AIM: use true log-P extrapolation for near surface temp (= as in
561        F.Molteni paper) ; update aim.5l_cs output.
562    o New variable in PARM03 for more flexible pickups
563    o somewhat cleaned package initialisation sequence for
564      ctrl/ cost/ ecco/ in packages_... routines
565    
566    checkpoint50g_post
567    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
568      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
569      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
570        made the default because of faster convergence than ADI
571    
572    checkpoint50f_post
573    o exf totally restructured
574      - replaced all exf_set_ routines by one generic exf_set_gen.F
575        and made sure it's still differentiable
576      - split exf_getffields.F into new exf_bulkformulae.F
577      - exf_inscal_/exf_outscal_ suffixes consistent with field names
578      - updated adjoint/makefile and relevant verif. accordingly
579    
580    checkpoint50f_pre
581     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
582          + change Evap over land. (update aim.5l_cs output)
583     o added missing .cvsignores and made uniform across expts
584     o changed configuration of tidal_basin_2d expt
585     o added pkg/debug functions for tracing code in fatal crashes
586     o tidied pkg/monitor to use MONITOR_OPTIONS.h
587     o new fn in pkg/monitor to stop model if solution grows too big
588     o removed lots of single quotes from comments
589    
590    checkpoint50e_post
591    o make KPP work with PTRACERS
592     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
593       nearly a copy of kpp_transport_s
594     - there is no analogue to SurfaceTendencyS, so I have to use
595       gPtr(of the surface layer) instead
596    o add a new platform SunFire+mpi (SunFire 15000) to genmake
597    checkpoint50e_pre
598    
599    checkpoint50d_post
600    o change kpp output from multiple-record state files to single-record state
601      files analogous to write_state.F
602    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
603      analogous to the cg2d-related output.
604    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
605      so that writing to internal file fn (with length 512) fails.
606    checkpoint50d_pre
607    
608    checkpoint50c_post
609    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
610    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
611    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
612    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
613    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
614    
615    checkpoint50c_pre
616    Merging from release1_p13:
617    o bug fix for pkg/seaice dynamic solver
618    o Added SEAICE_initialHEFF to pkg/seaice
619    
620    checkpoint50b_post
621    o store u*,v* in gU,V instead of in guNm1,gvNm1
622    o in order to put the momForcing out of the Adams-Bashforth:
623      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
624      to timestep.F
625    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
626    o re-generate output for highly sensitive test-exp:
627       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
628    
629    checkpoint50b_pre
630    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
631    o corrected CPP option mismatch in exf_Bulk... functions for case
632      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
633    
634    checkpoint50a_post
635    o Bug fix for merging between c50 and KPP.
636      ikey was passed from thermodynamics to kpp_calc via
637      common block rather than being recomputed in kpp_calc,
638      in contradiction with new key itdkey.
639      New key ikppkey created, and tamc.h headers updated.
640    
641    checkpoint50
642    - 2nd step of merge with ecco-branch:
643      merge changes in ecco-branch back into main trunk
644    - bug fix in find_alpha
645    - more storing in gmredi_calc_tensor.F, kpp_routines.F
646    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
647    - merged some sliced AD support routines
648    
649    checkpoint49
650    merged from ecco-branch:
651    o exf:
652      - Enable initialisation of forcing fields to constant
653        (runtime) values.
654      - in exf_getffields.F
655        Reduce i-/j-loop to interior domain, discarding overlaps.
656        That also fixes wrong TAF-key computations for key_1, key_2
657        with bulf formulae.
658      - exf_init.F modify #ifdef for exf_init_evap
659      - exf_getffieldrec.F, ctrl_getrec.F
660        The following INT-usages are not safe:
661          fldsecs  = int(fldsecs/fldperiod)*fldperiod
662          fldcount = int(fldsecs/fldperiod) + 1
663        and were modified.
664    o autodiff: checkpoint_lev...
665      - updated storing for bulk formulae (some arrays were missing)
666      - added state for seaice package
667      - synchronized with main branch
668    o DIVA:
669      Modif.s in
670      - the_main_loop.F
671      - the_model_main.F
672      and added cost_final_restore.F cost_final_store.F
673      o With these changes, it is possible to fully separate
674        the first forward run to compute the cost function (mdthe_main_loop)
675        and adjoint runs over individual DIVA intervals (adthe_main_loop)
676        into separate model executions.
677        This enables better tuning of DIVA to given queue sizes.
678      o Loss of cost function value in consecutive DIVA runs is
679        fixed by storing to 'costfinal' file.
680      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
681        beginning/end of adjoint integration is accounted for.
682      The current changes apply to TAF-1.4.26.
683      TAF has one remaining bug, requiring one manual change
684      (see MITgcm manual).
685    o cal: synchronized between MAIN and ecco-branch
686    
687    checkpoint48i_post
688    o Changes to restore differentiability of code w.r.t. previous tag
689      (mostly adding new routines to make list and replacing
690      pressure by totPhiHyd).
691    o Updated and merged grdchk package
692      - has both ADM and TLM checks
693      - works for single- and multi-proc.
694      - output cleaned
695      - worked successfully for parallel DIVA
696    o genmake:
697      - Adding -platform=SP4
698      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
699    o Modif. for DIVA:
700      ctrl_unpack should not be called in intermediate DIVA interval.
701      (similar thing would apply for active files such as
702      tbar, sbar, psbar, which should not be reinitialised;
703      only relevant for ecco-branch)
704    
705    checkpoint48h_post
706    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
707    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
708    o Added SEAICE_initialHEFF to pkg/seaice
709    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
710    
711    checkpoint48g_post
712    --- EOS:
713    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
714      store total Potential in totPhyHyd for diagnostics & EOS.
715    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
716    --- Pressure/geopotential gradient:
717    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
718    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
719      ( changes results of global_ocean_pressure )
720    o NLFS + z-coord.: add eta*Rho' contribution.
721    o accurate phiHyd when using interface-W at the middle between 2 centers
722     ( changes results of ideal_2D_oce )
723    o includes r* 2nd term in potential gradient.
724    
725    checkpoint48f_post
726    Merging from release1_p12:
727    o Modifications for using pkg/exf with pkg/seaice
728      - improved description of the various forcing configurations
729      - added basic radiation bulk formulae to pkg/exf
730      - units/sign fix for evap computation in exf_getffields.F
731      - updated verification/global_with_exf/results/output.txt
732    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
733      (SBO) core products, including oceanic mass, center-of-mass,
734      angular, and bottom pressure (see pkg/sbo/README.sbo).
735    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
736      to avoid negative values in shallow regions.
737      - updated verification/natl_box/results/output.txt
738      - updated verification/lab_sea/results/output.txt
739    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
740    o Added useSingleCpuIO option (see PARAMS.h).
741    o Updated useSingleCpuIO option in mdsio_writefield.F to
742      work with multi-field files, e.g., for single-file pickup.
743    o pkg/seaice:
744      - bug fix in growth.F: QNET for no shortwave case
745      - added HeffFile for specifying initial sea-ice thickness
746      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
747    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
748      kpp_transport_t.F, forward_step.F, and the_main_loop.F
749    o pkg/seaice:
750      - adjoint-friendly modifications
751      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
752    
753    checkpoint48e_post
754    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
755    o dynamics: change definition of computational domain & adapt mom_fluxform
756      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
757    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
758        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
759        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
760        global_ocean.90x40x15 global_with_exf global_ocean_pressure
761        inverted_barometer solid-body.cs-32x32x1
762      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
763    
764    checkpoint48d_post
765    o in preparation for r*:
766     a) use pre-computed gradient of hydrostatic potential:
767        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
768     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
769        => affects results of glob_oce_pressure (different truncation error)  
770      update output.txt of ideal_2D_oce & global_ocean_pressure
771    
772    checkpoint48d_pre
773    o in preparation for r*:
774      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
775      pass the 2 comp. of the grad. as arguments to momentum S/R.
776      but for the moment, only used if it does not change the results.
777    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
778    
779    checkpoint48c_post
780    Modifications in treatment of initial flux forcing controls
781    to avoid extra storing of flux fields.
782    
783    checkpoint48c_pre
784    o Added tidal_basin_2d experiment (currently 1D!)
785    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
786    
787    checkpoint48b_post
788    o r* coordinate added in #ifdef NONLIN_FRSURF block.
789     (modification to pressure gradient not yet implemented)
790    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
791      (for U & V) that are used for vertical advection of momentum.
792    
793    checkpoint48a_post
794    o In preparation for r*, use temp. array to compute vertical transport
795       in flux-form momentum pkg. => change results of few test-exp.
796      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
797                        lab_sea, natl_box & plume_on_slope
798    
799    checkpoint48
800    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
801    
802    checkpoint47j_post
803    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
804    o moved adexch from forward_step to addummy_in_stepping
805    o added exch in ctrl_map_...
806    o aveFreq.=0. at end of cost_final to avoid overwrite in
807      reverse checkpointing loop
808    o Yet more changes in gmredi:
809      * adgmredi_calc_tensor
810        avoiding all recomputation of gmredi_slope_limit
811      * adgmredi_x/y/rtransport
812        added flag for excessive storing to avoid recomp. of
813        u/v/rtans, dTdx/y/z
814        -> this is not really necessary and very memory-consuming
815      * adgmredi_slope_psi:
816        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
817      * gmredi_slope_limit
818        re-activated full calculation of taperfct for case 'ac02'
819    o updating verification/ adjoints of carbon, global_ocean.90x40x15
820    
821    checkpoint47i_post
822    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
823    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
824      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
825    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
826    o gmredi: fix few bugs.
827    
828    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
829    This will be a good checkpoint to plug into the ecco-branch.
830    o few modif.'s to get latest version adjointed
831      (mainly kick out code in ini_linear_phisurf)
832    o modif's to run adjoint with exactConserv
833    o case GM_BOLUS_ADVEC should be cleaned
834      S/R gmredi_slope_psi should be cleaned
835    o verification/carbon now has exactConserv=.TRUE.
836    
837    checkpoint47g_post
838    o time-average AIM output: becomes independent from statvars time-average
839      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
840    o After TAF bug fix:
841      Tested adjoint of gmredi package.
842      Tests were done with checkpoint47 rather than with latest
843      checkpoint47f_post since the latter is broken for the adjoint
844      verification/carbon/ contains both ADM and TLM gradient checks.
845    Here they are, before they get changed/lost/stolen.
846    Mostly modif.'s to fix numerical sensitivities.
847    Gradient checks OK for
848    - GM_taper_scheme:
849      * clipping
850      * ac02
851      * linear
852      * glw91
853      * dm95
854      * ldd97
855    - GMREDI_OPTIONS:
856      * GM_VISBECK_VARIABLE_K
857      * GM_NON_UNITY_DIAGONAL
858      * GM_EXTRA_DIAGONAL
859      * GM_BOLUS_ADVEC
860    in conjunction with data.gmredi parameters to be checked in
861    in a few minutes under verification/carbon/code/
862    
863    checkpoint47f_post
864    Merging from release1_p10:
865    o modifications for using pkg/exf with pkg/seaice
866      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
867        and SEAICE_EXTERNAL_FLUXES
868      - pkg/exf CPP options EXF_READ_EVAP and
869        EXF_NO_BULK_COMPUTATIONS
870      - usage examples are Experiments 8 and 9 in
871        verification/lab_sea/README
872      - verification/lab_sea default experiment now uses
873        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
874    
875    checkpoint47e_post
876    o created a tag prior to creating a branch
877    
878    checkpoint47d_post
879    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
880      at the bottom boundary had an erroneous half slip boundary condition
881    o added bottom drag and no slip boundary condition capabilities to
882      oceanic pressure coordinates code
883    o added new verification experiment global_ocean_pressure, this experiment is
884      also described in the tutorial section of the manual
885    checkpoint47d_pre
886    
887    checkpoint47c_post
888    o Added a verification experiment for a global cubed-sphere ocean run
889      -  verification/global_ocean.cubed32x32x30
890      -  uses pkg/therm_seaice and pkg/bulk_forcing
891    
892    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
893    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
894      when using P-coordinate; only implemented for atmospheric config.
895    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
896      NOTES: requires option NONLIN_FRSURF to be "#define".
897    o update advect_xz/results/output.txt (left from checkpoint44g_post)
898    
899    checkpoint47b_post
900    Merging from release1_p9:
901    o pkg/seaice
902      - removed GOTO's and added taf directives
903      - double precision constants to reduce the g77 (Linux)
904        to F77 (SGI) differences reported in release1_p8
905    o tools/genmake
906      - added SGI options
907    o verification/testscript
908      - updated to that of checkpoint47a_post
909    o verification/global_ocean.90x40x15/input/eedata
910      - modified for SGI f77 compatibility
911    o verification/lab_sea
912      - added description of sea-ice model
913      - added missing matlab routines
914      - added test of thermodynamics parallelization
915    
916    checkpoint47a_post
917    o new pkg: aim_v23
918     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
919       for now, keep the same surface forcing as before.
920     - Part-Cell implemented into AIM; check that Heat & Water are conserved
921     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
922     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
923    o add diagnostic of surface correction term in monitor output
924    
925    o bulk_force and therm_seaice
926    - Two packages:  bulk_force (Bulk forcing)
927      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
928    - Earlier integration from Stephaine Dutkiewicz
929      and Patrick Heimbach.
930    - Two ifdef statements for compile time,
931       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
932    
933    checkpoint47
934    differentiable version of checkpoint46n_post
935    o bug fix in quasihydrostaticterms
936    o * "clean" adjoint code (in terms of extensive recomputations)
937        can now be obtained for all GMREDI options (i.e. for
938        - GM_VISBECK_VARIABLE_K
939        - GM_NON_UNITY_DIAGONAL
940        - GM_EXTRA_DIAGONAL
941        - GM_BOLUS_ADVEC )
942      * However, wrong gradient check problem remains unsolved.
943      * New CPP options have been introduced for different
944        tapering schemes
945    o external_fields_load now part of differentiation list
946    o pressure needs multiple storing;
947      would be nice to have store_pressure at beginning or
948      end of forward_step, e.g. by having phiHyd global (5-dim.)
949      (NB: pressure is needed for certain cases in find_rho,
950      which is also invoked through convective_adjustment).
951    o recomputations in find_rho for cases
952     'JMD95'/'UNESCO' or 'MDJWF' are OK.
953    o #define ATMOSPHERIC_LOADING should be differentiable
954    o ini_forcing shifted to begining of initialise_varia
955    o Incorporating QNVS line search routines into MITgcm
956      (this is separate code, and therefore not under pkg)
957      lsopt/, optim/
958    o Updated verification/carbon/
959      - #define GM_VISBECK_VARIABLE_K
960      - GM_taper_scheme    = 'ldd97'    
961    
962    checkpoint46n_post
963    Merging from release1_p8:
964    o verification/natl_box:
965      updating new external_fields_load routine
966    o New package: pkg/seaice
967      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
968      The sea-ice code is based on Hibler (1979-1980).
969      Two sea-ice dynamic solvers, ADI and LSR, are included.
970      In addition to computing prognostic sea-ice variables and diagnosing
971      the forcing/external data fields that drive the ocean model,
972      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
973      The implied surface heat flux is then stored in variable
974      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
975      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
976      non-local transport term.  Because this call precedes model
977      thermodynamics, temperature under sea-ice may not be "exactly" at
978      the freezing point by the time theta is dumped or time-averaged.
979      N.B.: fairly large differences in accuracy occur across
980            different platforms/compilers; comparison between
981            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
982            generated output gives:
983       T           S           U           V
984      C D M    c        m  s        m  s        m  s        m  s
985      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
986      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
987      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
988    
989      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
990    o GAD:
991      - generated new common blocks to account for call of
992        same gad routines with differing traceridentities
993        (needed to modify tracerIdentity indices in GAD.h)
994      - generated separate common blocks for case useCubedSphereExchange
995        (Department of Futurology)
996      - parameter lists to gmredi_?transport: added tracerIdentity
997      - added new key indices to tamc.h
998    o external_fields_load:
999      - added this routine to TAF list
1000      - needed to make some common blocks global and additional storing
1001        along the same lines as exf package (checkpoint_lev?_directives.h)
1002    o exf:
1003      updated external forcing package
1004      - bug fixes carried over from ecco-branch
1005        (missing OBCS_OPTIONS.h in two routines)
1006      - enable easy to use "no forcing".
1007      - added exf I/O for atmospheric loading
1008      - added exf I/O for runoff data
1009      - transfered scaling between exf <-> MITgcm to exf namelist
1010    o Adding new verification experiment global_with_exf.
1011      This verification experiment is almost identical to the
1012      global_ocean.90x40x15 experiment, except that it uses
1013      the exf (and cal) package instead of the
1014      external_fields_load routine (cf README file).
1015    
1016    checkpoint46m_post
1017    o modified testscript to return -- when there are no lines of "%MON" output
1018    o added new flag "quasiHydrostatic" for QH mode
1019      and new routine quasihydrostaticterms()
1020    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1021      New routine: mom_u_coriolis_nh()
1022    o fixed sign of non-hydrostatic metric terms in u and v equations.
1023      Depend on correct sign of gravitySign.
1024    o added work.pc* to .cvsignore in aim directories using ifc
1025    o introduced flag for controllin non-hydrostatic metric terms
1026    o removed gravitySign from PARM04
1027    o switched to g77/ifc from pgf77 in aim experiments
1028    
1029    checkpoint46l_post
1030    o made convective adjustment work with pressure coordinates:
1031     - changed the direction of k-loop in convective_adjustment.F for the
1032       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1033     - adjusted the reference pressure k-index in convective_adjustment.F
1034     - adjusted the convection condition in convect.F (in analogy to
1035       calc_ivdc.F)
1036     - convective_adjustment no longer computes anything on the halos
1037     - removed the warnings about negative salinity from find_rho.F and
1038       find_alpha.F; instead the new routine look_for_neg_salinity, called
1039       at the beginning of find_rho, find_alpha, and find_beta, does a
1040       check of the entire slice, if CPP-option
1041       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1042    checkpoint46l_pre
1043    
1044    checkpoint46k_post
1045    o fixed the verification/global_ocean.90x40x15 experiment:
1046     - new bathymetry (the world according to A., JMC, and M.)
1047     - new initial fields and forcing fields (*.bin files)
1048     - new POLY3.COEFFS (for the next release one should switch to a full
1049       equation of state: JMD95P or MDJWF)
1050     - fixed several errors and redundancies in the data file
1051     - experiment uses looped cells
1052     - added matlab directory with diagnostic scripts for plotting of output
1053    
1054    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1055     - read AIM physics parameters from a file (data.aimphys)
1056     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1057    
1058    checkpoint46j_post
1059    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1060    o move wVel computation at the end of the time step, in S/R integr_continuity
1061    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1062    o update timeave pkg for wVel diagnostic.
1063    checkpoint46j_pre
1064    
1065    checkpoint46i_post
1066    o Clean up AIM package (and keep the results unchanged):
1067      include CPP_OPTION and use IMPLICT NONE in all routines ;
1068      declare all the variables _RL ; use _d 0 for all numerical constants.
1069      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1070    
1071    checkpoint46h_post
1072    o cleaned up the use of rhoNil and rhoConst.
1073      - rhoNil should only appear in the LINEAR equation of state, everywhere
1074        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1075        and the dynamical equations are all divided by rhoConst
1076    o introduced new parameter rhoConstFresh, a reference density of fresh
1077      water, to remove the fresh water flux's dependence on rhoNil. The default
1078      value is 999.8 kg/m^3
1079    o cleanup up external_forcing.F and external_forcing_surf.F
1080      - can now be used by both OCEANIC and OCEANICP
1081    checkpoint46h_pre
1082    
1083     Added code to convert surface volume flux (fresh water) into
1084     a mass flux when using P coordinates in the ocean (OCEANICP).
1085     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1086    
1087    checkpoint46g_post
1088    o Include a new diagnostic variable phiHydLow for the ocean model
1089      - in z-coordinates, it is the bottom pressure anomaly
1090      - in p-coordinates, it is the sea surface elevation
1091      - in both cases, these variable have global drift, reflecting the mass
1092        drift in z-coordinates and the volume drift in p-coordinates
1093      - included time averaging for phiHydLow, be aware of the drift!
1094    o depth-dependent computation of Bo_surf for pressure coordinates
1095      in the ocean (buoyancyRelation='OCEANICP')
1096      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1097        Theta, Salinity, and Pressure in the parameter list. This routine is
1098        presently contained in find_rho.F. This routine does not give the
1099        correct density for 'POLY3', which would be a z-dependent reference
1100        density.
1101    o cleaned up find_rho
1102      - removed obsolete 'eqn' from the parameter list.
1103    o added two new verification experiments: gop and goz
1104      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1105    checkpoint46g_pre
1106    
1107    checkpoint46f_post
1108    o Enable tangent linear (forward mode) gradient checks:
1109      - extended active file handling to g_... files
1110      - added TANGENT_SIMULATION to theSimulationMode
1111      - extended grdchk package accordingly
1112    o added tangent linear setup in verification/carbon/code_ftl
1113    o added adjoint setup in verification/front_relax/code_ad
1114    
1115    checkpoint46e_post
1116    o Added new equation of state -> MDJWF
1117      - EOS of McDougall et al., 2002, JAOT, submitted
1118      - caveat: the equation of state is only valid for a smaller (more
1119        realistic?) range of values than JMD95P/Z and UNESCO
1120      - added masks to the calculation of pressure in store_pressure
1121      - added more check values for density in check_eos (ini_eos.F), some of
1122        the old check values are out of the range of the MDJWF-eos, so don't
1123        expect perfect matches for those
1124    checkpoint46e_pre
1125    
1126    checkpoint46d_post
1127    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1128      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1129      case of pressure coordinates. eosType='JMD95Z' in
1130      combination with buoyancyRelation='OCEANICP' now causes an error.
1131    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1132      in find_alpha/beta.
1133    checkpoint46d_pre
1134    
1135    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1136      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1137    
1138    checkpoint46c_post
1139    o Changes necessary for ocean in p-coordinates
1140     -  Added new buoyancy relation = 'OCEANICP'
1141     -  Added new parameters = gravitySign (this used to be contained inside
1142        the factor dRdZ which I added when we first switched to R coordinates).
1143     X GM/Redi is not compatible (yet)
1144     X bottom drag and no-slip need to be debugged.
1145    checkpoint46c_pre
1146    
1147    checkpoint46b_post
1148    o Added new equation of state -> JMD95Z and JMD95P
1149      - EOS of Jackett and McDougall, 1995, JAOT
1150      - moved all EOS parameters into EOS.h
1151      - new routines ini_eos.F, store_pressure.F
1152    o Added UNESCO EOS, but not recommended because it requires
1153      in-situ temperature (see JMD95)
1154    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1155      unesco.f to be used with POLY3
1156    checkpoint46b_pre
1157    
1158    checkpoint46a_post
1159    o Added (atmospheric) pressure loading
1160      - new field in FFIELDS.h, etc...
1161      - new cpp flag ATMOSPHERIC_LOADING
1162    o Changed hFacC to _hFacC in calc_phi_hyd.F
1163    o Added SHORTWAVE_HEATING to some files for consistency
1164    checkpoint46a_pre
1165    
1166    checkpoint46
1167    further merges from release1_p5
1168    o new ctrl package
1169      - adopted from ECCO environment to enable optimization
1170      - added Eliassen Palm fluxes to controls
1171    o added Eliassen Palm flux controls to gradient check package
1172    o cost package
1173      - Compatible with new ctrl package
1174      - added Eliassen Palm cost hooks
1175      - modif's of existing cost functions
1176    o Adjoint-related bug fixes in kpp:
1177      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1178      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1179    o autodiff package
1180      - flow directives:
1181        + new for S/R do_the_model_io
1182        + enhanced for S/R checkpoint
1183        + new gmredi.flow
1184      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1185        disable adcommon.h/g_common.h by default.
1186      - fixed problem for adjoint of global_max
1187    o modified verification/carbon/
1188    o New setup for adjoint of global_ocean
1189    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1190    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1191    o incorporated hooks for sponge layer code (external_forcing.F)
1192    
1193    checkpoint45d_post
1194    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1195    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1196      (affects plume_on_slope "cg2d" output)
1197    o add new parameter deltaTfreesurf for free-surface time stepping
1198    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1199    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1200    o change phiMin in exp1 (to agree with documentation)
1201    o add new flags:
1202     - T,S forcing inside/outside Adams-Bashforth
1203     - turn off temp,salt advection and/or forcing
1204     - for each tracer, define internal flag for multiDimAdvection & A-B
1205    o monitor: change definition of KE to check conservation of Energy
1206    
1207    checkpoint45c_post
1208    o Removed f90 comments ("!")
1209    o Modified initialisations to enable exf package for MITgcm
1210      (without invoking ECCO_PACKAGE).
1211    o modifications to gradient check package (Martin Losch)
1212      - enable centered differences
1213      - modified format of standard output
1214    
1215    checkpoint45b_post
1216    o cleaned exchange calls in cg2d
1217    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1218    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1219      to configure barotropic setup (Martin Losch)
1220    o moved some initialisations within bi,bj loop in dynamics
1221      (TAF flow dependency)
1222    o in initialise_varia, moved call packages_init_variables
1223      before convective_adjustment_init
1224      (corresponding adjustment of TAF tape initialisation).
1225    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1226    
1227    checkpoint45a_post
1228    o compute Rho over the whole domain (extend iMin,jMin indices)
1229    o specific exchange for X-slice domain (case Ny=1)
1230    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1231    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1232    
1233    checkpoint44h_post = checkpoint45
1234    o Fix to restore differentiability:
1235      place at which packages_init_variables is called in
1236      initialise_varia is crucial for reverse control flow.
1237    o modifications in GMRedi to enable stable adjoint
1238      (corresponding modif's in thermodynamics, dynamics)
1239    o added missing hook for sponge layer code in external_forcing
1240    o modified test cost functions
1241    o storing in gad_advection (plus removal of write(0,*)!
1242    o missing headers TR1.h added in convective_adjustment routines
1243    o errorMessageUnit set non-equal zero in eeboot
1244      (conflict on some platforms, e.g. IBM SP3)
1245    o modified carbon verif.
1246    
1247    checkpoint44h_pre
1248    o vertical grid option: allow to put the Interface at the middle between
1249      2 cell-centers ; replace delZ in pkg/kpp by drF.
1250    o GM Advective form: Tracers are advected using the residual transport (=
1251      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1252    
1253  checkpoint44g_post  checkpoint44g_post
1254  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
1255    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F

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