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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.293 by jmc, Fri May 14 16:31:58 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o pkg/land: only liquid water can diffuse or run-off
7    o AIM using land: soil wetness availability account for snow
8    o added printMapIncludesZeros to EEPARMS namelist
9    
10    checkpoint53a_post
11    o restore TAMC compatiility for exf_constants.h
12      (no usage of _d in .h)
13    o Additional storing in KPP in an attempt to fix
14      TAMC problem with adjoint of KPP code.
15      (no success...)
16      Identical code works fine with TAF.
17    o Fixed verification/natl_box_adjoint experiments.
18      Initial conditions for Experiments 4 and 5 are now
19      set to "SEAICE_initialHEFF=0", which is more reasonable,
20      and hence gives results closer to that of Experiment 2.
21      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
22    
23    checkpoint53
24    o stable checkpoint with up to date adjoint
25      TLM tests only run for 1st grdchk at the moment. Its unclear if
26      this is a code problem or a problem with resetting code for g_
27      variables that is being autogenerated wrong.
28      Otherwise:
29       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
30       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
31         are both still in chaos following their security messes.
32    
33    checkpoint52n_post
34    o various build (mostly genmake2) changes including:
35      - ability to build/run more easily within Cygwin and MacOS X
36      - more complicated Makefiles with a stronger dependence on Gnu Make
37    o pkg/seaice modifications
38      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
39        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
40        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
41      - changed proxy for geostrophic velocity and updated
42        verification/lab_sea/results/* accordingly
43      - removed ADI dynamic solver from pkg/seaice
44      - replaced all occurrences of 1/CSTICE or 1/CSUICE
45        they caused a segmentation fault under certain circumstances
46      - removed unused field WATR
47    o bug fix in exf-package:
48      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
49         now reflect that.
50    o small fixes in the cal-package:
51      - set reference date to first of January for the 'model'-calendar
52      - failing of cal_CheckDate in cal_FullDate now actually results in a
53        warning
54    o small modifications in exf-package to increase flexibility:
55      - change climtempfreeze from a constant to a runtime parameter that
56        is specified in data.exf_clim (default = -1.9)
57      - introduce runtime parameter windstressmax (default = 2.0) that is
58        specified in data.exf
59    o fix in pkg/thsice:
60      - update Evap (Tsf changes) to be consistent with Latent heat flux
61      - maintain snow precipitation unchanged (even if Tsf >=0).
62     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
63    
64    checkpoint52m_post
65    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
66      this does not change any of the results, because myIter=0 in swfrac always
67      lead to jwtype=2 (the default anyway), but the call makes little sense
68      as a default
69    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
70    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
71      atmospheric model (AIM) to use it ; add a "slab ocean" component.
72    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
73    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
74    o extending useSingleCpuIO option to work with new exch2 I/O format
75      - old-style, missing-tile I/O is still accessible by defining CPP
76        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
77    o monitor package can write to NetCDF files and/or STDOUT
78    o fix re-definition bug in MNC_GRID_INIT_ALL()
79    o doc/api_reference added
80      - a framework for building an API Reference Manual using all
81        the "protex" comments embedded in the code
82      - see pkg/generic_advdiff, pkg/mnc for examples
83    o MNC:
84      - make myThid the last argument for all subroutines
85      - new default for the grid files: NO halos
86      - add useMNC and other run-time flags
87      - separate per-file-group handling of the unlimited dimension
88      - early initialization of MNC w/ flags read at the eeboot stage
89        and lookup tables set in initialize_fixed
90      - write all MNC output to a freshly-created directory
91    o thermodynamics sea-ice (thsice) is now tested with testreport.
92    o test exp. advect_cs: use the standard cs32 grid ; update output.
93    o Added functionality to grdchk:
94      pick global i,j,k position (or nearest wet) where to perform check.
95    
96    checkpoint52l_post
97    o new land formulation:
98      a) use ground enthalpy as prognostic variable to ensure exact
99         energy conservation.
100      b) account for water temperature and for latent heat of freezing
101         in all processes (rain, run-off, ground storage)
102      c) compute surface and ground temperature implicitly.
103    o aim_v23 modification for new land model:
104      a) Treat separately land / ocean / sea-ice surface fluxes
105         to allow implicit computation of land & sea-ice surface temp.
106      b) add snow precipitation.
107    checkpoint52l_pre
108    
109    o fix problem (when 1 tile is empty) in min/max monitor.
110    o fix bug in timeAve (u,vZetatave in common block)
111    o no restoring terms under ice for pkg/seaice
112    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
113    o bug fix for pkg/seaice pickups
114    o change MNC call locations and add coordinate attributes
115    o mask vorticity at the corner ; affects global_ocean.cs output
116    o fix ini_curvilinear_grid ; test CS experiments with mpi
117    o aim.5l_cs: modify sea-ice fraction input file ; update output
118    o exf: Adding simple range check routine for exf fields after read
119    
120    checkpoint52k_post
121    o removed top-level directory "diags"
122      - we migrated these functions to pkg/timeave a long time ago
123    o fixed bug introduced in pkg/monitor
124    o accuracy ctrlprec = 32 insuffient for gradient checks using
125      averaged fields (I/O via cost_averages)
126      -> use ctrl.h in active_file*.F to control I/O precision.
127    o paramter list of CALL ADTHE_MAIN_LOOP
128    o added initial do_the_model_io to ecco
129    o set all ...Freq to zero after cost_final
130      taveFreq, dumpFreq, pChkptFreq
131    o MAIN and ECCO differentiability restored
132    
133    checkpoint52j_post
134    o fix nchklev in tamc.h for global_ocean...
135    o Bringing flow and store directives up-to-date
136    o Really weird thing!
137      call do_the_model_io from the_main_loop with parameters
138      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
139      TAF places a faulty re-call of initialise_varia
140      after cost_final call which should not be there!
141    checkpoint52j_pre
142    
143    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
144      error messages
145    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
146    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
147      debug output
148    o modfied mdsio_writefield.F to handle non-global files under exch2
149    o update AIM Cubed-Sphere exp (aim.5l_cs):
150      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
151    o update AIM Equatorial Channel exp:
152      use standard aim_v23 pkg and change the SST fields to be more realistic.
153    o globalFile now works with exch2
154    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
155      mon_vort3.F to make exch2 friendly with >1 tile per cube face
156    o limit timeave output for hi-res integrations
157    
158    checkpoint52i_post
159    o removed CPP_EEOPTIONS.h from verification/*/code
160    o updated the tiling for global_ocean_pressure
161    checkpoint52i_pre
162    
163    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
164      the old pkg/aim).
165    
166    checkpoint52h_pre
167    o shortened offending lines in exch2_send_rx?.template
168    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
169    o genmake2: add build & execute test for NetCDF code
170    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
171      old grid files, moved CPP_EEMACROS.h to pkg/exch2
172    o added useSingleCPUIO flag to monitor.F and mon_out.F
173    o added temporary hack for sea-ice dynamics on the cube:
174      metric terms are ignored and it is assumed that
175      there is no sea-ice on cube faces 1, 2, 4, and 5.
176    
177    checkpoint52f_post
178    o added exch2 cube routines to pkg/exch2
179    o modified hs94.cs-32x32x5 to use it
180    o added new grid files to hs94.cs-32x32x5
181    checkpoint52f_pre
182    
183    checkpoint52e_post
184    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
185      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
186    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
187      to work with implicit vertical advection and AB ;
188    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
189    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
190     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
191    checkpoint52e_pre
192    
193    o fix bug in impldiff when Nr=1 or Nr=2.
194    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
195    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
196    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
197      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
198    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
199    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
200    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
201    
202    checkpoint52d_post
203    o re-tiled many expts to allow comparison in multi-processor mode
204      - updated output accordingly
205      - changed hs94.128x64x5 to use intial T from file rather than use the
206        random number generator
207    o add infrastructure in model routines for fizhi and gridalt packages
208    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
209    o changes to permit hi-res, cubed-sphere, configuration
210      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
211      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
212      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
213        of surface winds for the cube
214      (A verification experiment, based on global_ocean.cs32x15, but with
215       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
216       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
217       complete with example surface forcing files and matlab scripts to look
218       at the output and compare it with that of global_ocean.cs32x15.)
219    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
220       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
221       to conform to the common rule.
222    o check-in the first version of the coupler + interfaces for multi-components
223       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
224       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
225       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
226       - ocean and atmos. share the same horizontal grid (no interpolation).
227       - exchanges between component and coupler is done in forward_step
228    o new verification experiment, cpl_aim+ocn:
229       coupled ocean - AIM atmosphere on cs32 grid.
230    
231    checkpoint52d_pre
232    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
233    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
234    
235    checkpoint52c_post
236    o Fixing OPTIONS files for use of exf:
237      - ALLOW_ECCO not needed
238      - ECCO_CPPOPTIONS.h should not be included from
239        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
240        as has been the case in the past
241      - All cal/exf related options are currently set in
242        single header file. Should remain so until we
243        agree on a consistent new policy.
244    o Removed all CPP options for cal package.
245      cal has no more CPP options.
246    o modified STOREs in GAD_ADVECTION
247    o corrected key comp. for passkey
248    
249    checkpoint52b_post
250    o new version: "thsice" of thermodynamic sea-ice pkg:
251     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
252     - modify fluxes but do not change theta directly;
253     - light cleaning of bulk_force pkg (still needed with thsice).
254     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
255       + output_thsice.txt to test thsice & bulk_force pkgs.
256    o put back grid & coriolis monitor output.
257    checkpoint52b_pre
258    
259    o call "do_the_model_io" at the beginning (=> dump initial state)
260    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
261    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
262      (need info on NUMBER_OF_PTRACERS)
263    o missing PTRACERS headers in some routines
264    o default tamc.h in pkg/autodiff supposed to crash
265      to ensure proper customization
266    
267    checkpoint52a_post
268    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
269      - moved surfaceTendencyTice from pkg/seaice to main code
270      - subroutine FREEZE_SURFACE now limits only surface temperature
271        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
272        => new output.txt for global_ocean.cs32x15 & global_with_exf
273      - keep the old version of FREEZE for backward compatibility;
274        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
275      - corresponding modifs for TAF directives
276    o added surface flux output variables to TIMEAVE_STATVARS
277    o time-averaged output for pkg/ptracers
278    o fix problem with ECCO-related divided adjoint
279      snapshot file was missing some ad-variables,
280      but no warning issued by TAF
281    
282    checkpoint52a_pre
283    o some bug fixes for #undef REAL4_IS_SLOW
284    
285    checkpoint52 = ecco_c52_e35
286    o after testing adjoints of checkpoint51u_post
287    
288    checkpoint51u_post
289    o this is the post-merge tag of the ecco-branch
290      (needs another clean checkout and re-testing)
291    o various natl_box_adjoint configs and results
292      but no input fields
293    o obcs adjoint not yet merged!
294    o adding ECCO global 1x1 and 2x2 degree configs
295    o updated/extended some store directives for seaice
296    o pkg/ecco now containes ecco-specific part of cost function
297    o top level routines the_main_loop, forward_step
298      supersede those in model/src/
299      previous input data.cost now in data.ecco
300      (new namelist ecco_cost_nml)
301    o in ctrl/ cleaned some cross-dependencies and updated CPP options
302    
303    checkpoint51t_post
304    o this is the pre-merge tag of the ecco-branch
305    
306    checkpoint51s_post
307    o cleanup: removed various obsolete #define-s
308    o pkg/grdchk
309      - renamed 'ph-grd 3' to 'grad-res'
310      - merged from ecco-branch
311        (remaining bug fixes for obcs gradient checks)
312      - additional high-precision output for testreport
313        (grep for 'precision_grdchk_result')
314    
315    checkpoint51r_post
316    o cleaned up or removed CPP_OPTIONS.h files
317    o updated results for some of the tests to reflect the new
318      optfiles (-ieee: -O0 instead of -O3)
319    
320    checkpoint51q_post
321    o cd_code:
322      - moved cd_scheme.F -> cd_code_scheme.F
323      - separate read_checkpoint from cd_code_ini_vars.F
324      - separated cd_code part from write_checkpoint
325      - updated AD_SOURCE, generated .flow
326      - added CD_CODE_VARS.h to the_main_loop
327      - Moving cd_code specific store dir.s to pkg/cd_code
328    o ctrl package totally restructured
329      - pack/unpack now optional and decoupled from
330        xx_/adxx_ I/O
331      - ctrl_pack/unpack cleaned
332        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
333      - confined inclusion of AD_CONFIG.h to where necessary.
334    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
335    
336    checkpoint51p_post
337    o create initial cd_code package
338      - WARNING: the initialization of fields within packages
339        is broken because INI_FIELDS (where READ_CHECKPOINT is
340        called) is called *before* PACKAGES_INIT_VARIABLES.
341        This seems to be backwards since
342        1) its important to initially zero the entire field including
343           the "halo" region
344        2) zeroing needs to be done *before* reading pickup info
345           and the pickup call might or might not happen in any
346           particular run
347      - this needs an overhaul for R2
348    o cleanup verification/*/code/GMREDI_OPTIONS.h
349    o cleanup testreport
350    
351    checkpoint51o_post
352    o bringing AD-related verif's up to date with genmake2
353      - carbon/
354      - global_ocean.90x40x15/
355      - hs.94.1x64x5/
356      - (front_relax/ )
357    o (more) consistent directory structure for AD-related verif.'s
358    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
359    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
360    o bug fix in find_alpha.F for MDJWF:
361      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
362        change rho -> rho-rhoConst
363      - replace call find_rho to find_rhonum
364    o initialisation of rFlx extended to full array (required by TAF)
365      and shifted to thermodynamics
366    o removed PTRACERS.h in ptracers routine
367    o added surfacetendencyPtr to S/R parameter list pracers_forcing
368    o Correcting initialisations for fVerU, fVerV.
369    o helping TAF to recognize dependency on kUp for
370      fVerU, fVerV
371    o Replacing delZ by delR in pkg/ctrl/
372    checkpoint51o_pre
373    
374    o undid all of cp51 pending some cleanups and discussion
375    o added the [#include "AD_CONFIG.h"] statement to all files that need
376       it for adjoint/tl #defines
377     o re-worked the build logic in genmake2 to support AD_CONFIG.h
378     o removed tools/genmake since it no longer works
379    
380    checkpoint51n_post
381    o modifications to make FREEZE flux visible to pkg/kpp
382      - moved surfaceTendencyTice from pkg/seaice to main code
383      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
384      - subroutine FREEZE now limits only surface temperature
385        (this means new output.txt for global_ocean.90x40x15,
386         global_ocean.cs32x15, and global_with_exf)
387    o added surface flux output variables to TIMEAVE_STATVARS
388    
389    checkpoint51n_pre
390    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
391    o added [#include "AD_CONFIG.h"] to all files that use the following
392      defines:
393      - ALLOW_ADJOINT_RUN
394      - ALLOW_TANGENTLINEAR_RUN
395      - ALLOW_ECCO_OPTIMIZATION
396    
397    checkpoint51m_post
398    o incorporating changes to get TAMC/TAF working in genmake2
399      - added new TAMC/TAF targets to the Makefile
400      - various cleanups related to package handling
401      - these changes should have no impact on the forward model
402    
403    checkpoint51l_post
404    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
405     - faster algorithm for cal_addtime.F
406     - higher precision arithmetic, where needed
407     - pkg/exf *startdate variables changed from calendar date to
408       model integration time
409    
410    checkpoint51l_pre
411    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
412    o enable to apply restoring on S & T only in a latitude band.
413    o update output (external_forcing_surf modif. change truncation errors)
414       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
415    
416    checkpoint51k_post
417    o change default to: useNHMTerms=.FALSE.
418     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
419       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
420     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
421        exp1, ideal_2D_oce
422     - change data file of oceanic exp (leave the results unchanged for now)
423       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
424    o set gravitySign automatically according to the vertical coordinate used
425      (and change sign: back to "logical" value: +1 when R increases downward)
426    o added an include barrier to the default CPP_OPTIONS.h and
427      removed the #include "PACKAGES_CONFIG.h" from it
428    o fix a bug in mom_fluxform (from chk51j_post)
429    
430    checkpoint51j_post
431    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
432    o adjusted some flow directives (dynamics, thermodynamics)
433    o added cubed-sphere case to test cost function
434    o heckpoint_lev?_directives.h now include
435      pkg-specific directives, whenever those are enabled.
436    o Moving pkg-specific flow directives to corresponding pkg
437      Moving pkg-specific differentiation list to corresponding pkg
438      Moving pkg-specific checkpoint-lev storing to corresponding pkg
439      ---> conventions are
440           - pkg_ad.flow
441           - pkg_ad_diff.list
442           - pkg_ad_check_lev?_dir.h
443    
444    checkpoint51i_post
445    o merge of the branch-genmake2
446      - knowingly breaks the older genmake
447      - automatic generation of all ALLOW_${PKG_NAME} defines
448      - new testreport supersedes older testscript
449    o large number of package inclusion and header cleanups
450    checkpoint51i_pre
451    
452    o new output for adjoin of global ocean vector invariant
453    o fix for checkpoint of thermodynamic seaice and bulk_force
454    o Steph gchem various cleanups
455    
456    checkpoint 51h_pre
457    o fixed some single quotes
458    o modify gchem pkg to be more versatile
459    o modifications to clean up dic pkg
460    o add pkg/cfc
461    
462    checkpoint51g_post
463    o provide links for ARPACK and ADM*TLM
464    o start removing verification/vero/
465    o update AD-related stuff
466      (in particular some IF-statements in model/src/ routines)
467    o adding to verification/global_ocean.90x40x15/ adjoint of
468      vector invariant setup
469    
470    checkpoint51f_post
471    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
472    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
473      of tracer Green's fucntions for ocean inversion project.
474    
475    checkpoint51f_pre
476    o Added on-the-fly spatial interpolation capability
477        "USE_EXF_INTERPOLATION" to pkg/exf.
478      - This is a temporary Cartesian-grid hack until
479        the super-duper ESMF coupler becomes available.
480      - See verification/global_with_exf/README for usage example.
481      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
482        flags and modified pkg/seaice accordingly.
483    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
484        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
485        non-local transport term.
486    
487    checkpoint51e_post
488    o pkg/mom_vecinv:
489      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
490      - add time-ave diagnostic of vorticity advection.
491    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
492    o atmospheric geopotential: - include water vapor effect;
493                                - use p^kappa in p* scaling.
494    o land pkg: read initial state from files.
495    o AIM : add stratospheric drag in the upper level
496    
497    checkpoint51d_post
498    o change function ILNBLNK (=> last non-blank char.) to return zero
499      (instead of the string length) when the string. char is empty
500    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
501    o modif's to restore TAMC compatibility
502      - avoid "_d" constructs in PARAMETER declarations
503      - avoid interrupting lines by comment lines
504    o Use cluster local disks for purely local I/O
505      vs. globally visible disks needed for ctrl stuff
506      (merged from ecco-branch)
507      - new active_file_loc... and mdsio_..._loc routines
508      - affected packages: autodiff, ctrl, grdchk, mdsio
509    
510    checkpoint51c_post
511    o introducing integer flag debugLevel
512      - debLevZero: suppress all output
513      - debLevA: standard
514      - debLevB: equivalent to current debugMode=.TRUE.
515    o introducing pathname variable mdsioLocalDir for mdsio
516      that can be specified at runtime
517      (relevant for cluster I/O to local disk)
518    `
519    >>>checkpoint51b_post
520    adjoint of ptracers
521    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
522    o extended state in checkpoint_lev?, etc.
523    o alternative ctrl/cost with tr1 or ptracer
524    o new comlev1_bibj_ptracers
525    o new ptracers.flow
526    o made ptracers_forcing same as external_forcing_s
527    o added verification for adjoint with ptracers
528      - adm. grdchk fail so far
529      - tlm. grdchk OK
530      - checked tapelev/comlev recomputations: OK
531    <<<checkpoint51b_pre
532    
533    checkpoint51a_post
534    o added code for biogeochemistry package
535      - new pkgs: dic, gchem
536      - new subroutine in ptracers
537    o modify code for biogeo packages
538      - in model/src and pkg/ptracers
539    
540    checkpoint51
541    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
542      - autodiff, ctrl, exf, grdchk, seaice
543      kept separate packages
544      - cost, ecco, obcs
545    o updating verification/internal_wave, verification/lab_sea
546      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
547    
548    checkpoint50i_post
549    o Preparing next differentiable checkpoint and sync
550      of MAIN vs. ecco-branch
551      - 1st step: this one is differentiable
552      - 2nd step: next(! not this) checkpoint will have updated packages
553                  from ecco-branch)
554    
555    checkpoint50h_post
556    o new package "land": provide surface BC for AIM.
557    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
558    o AIM: use true log-P extrapolation for near surface temp (= as in
559        F.Molteni paper) ; update aim.5l_cs output.
560    o New variable in PARM03 for more flexible pickups
561    o somewhat cleaned package initialisation sequence for
562      ctrl/ cost/ ecco/ in packages_... routines
563    
564    checkpoint50g_post
565    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
566      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
567      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
568        made the default because of faster convergence than ADI
569    
570    checkpoint50f_post
571    o exf totally restructured
572      - replaced all exf_set_ routines by one generic exf_set_gen.F
573        and made sure it's still differentiable
574      - split exf_getffields.F into new exf_bulkformulae.F
575      - exf_inscal_/exf_outscal_ suffixes consistent with field names
576      - updated adjoint/makefile and relevant verif. accordingly
577    
578    checkpoint50f_pre
579     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
580          + change Evap over land. (update aim.5l_cs output)
581     o added missing .cvsignores and made uniform across expts
582     o changed configuration of tidal_basin_2d expt
583     o added pkg/debug functions for tracing code in fatal crashes
584     o tidied pkg/monitor to use MONITOR_OPTIONS.h
585     o new fn in pkg/monitor to stop model if solution grows too big
586     o removed lots of single quotes from comments
587    
588    checkpoint50e_post
589    o make KPP work with PTRACERS
590     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
591       nearly a copy of kpp_transport_s
592     - there is no analogue to SurfaceTendencyS, so I have to use
593       gPtr(of the surface layer) instead
594    o add a new platform SunFire+mpi (SunFire 15000) to genmake
595    checkpoint50e_pre
596    
597    checkpoint50d_post
598    o change kpp output from multiple-record state files to single-record state
599      files analogous to write_state.F
600    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
601      analogous to the cg2d-related output.
602    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
603      so that writing to internal file fn (with length 512) fails.
604    checkpoint50d_pre
605    
606    checkpoint50c_post
607    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
608    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
609    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
610    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
611    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
612    
613    checkpoint50c_pre
614    Merging from release1_p13:
615    o bug fix for pkg/seaice dynamic solver
616    o Added SEAICE_initialHEFF to pkg/seaice
617    
618    checkpoint50b_post
619    o store u*,v* in gU,V instead of in guNm1,gvNm1
620    o in order to put the momForcing out of the Adams-Bashforth:
621      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
622      to timestep.F
623    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
624    o re-generate output for highly sensitive test-exp:
625       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
626    
627    checkpoint50b_pre
628    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
629    o corrected CPP option mismatch in exf_Bulk... functions for case
630      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
631    
632    checkpoint50a_post
633    o Bug fix for merging between c50 and KPP.
634      ikey was passed from thermodynamics to kpp_calc via
635      common block rather than being recomputed in kpp_calc,
636      in contradiction with new key itdkey.
637      New key ikppkey created, and tamc.h headers updated.
638    
639    checkpoint50
640    - 2nd step of merge with ecco-branch:
641      merge changes in ecco-branch back into main trunk
642    - bug fix in find_alpha
643    - more storing in gmredi_calc_tensor.F, kpp_routines.F
644    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
645    - merged some sliced AD support routines
646    
647    checkpoint49
648    merged from ecco-branch:
649    o exf:
650      - Enable initialisation of forcing fields to constant
651        (runtime) values.
652      - in exf_getffields.F
653        Reduce i-/j-loop to interior domain, discarding overlaps.
654        That also fixes wrong TAF-key computations for key_1, key_2
655        with bulf formulae.
656      - exf_init.F modify #ifdef for exf_init_evap
657      - exf_getffieldrec.F, ctrl_getrec.F
658        The following INT-usages are not safe:
659          fldsecs  = int(fldsecs/fldperiod)*fldperiod
660          fldcount = int(fldsecs/fldperiod) + 1
661        and were modified.
662    o autodiff: checkpoint_lev...
663      - updated storing for bulk formulae (some arrays were missing)
664      - added state for seaice package
665      - synchronized with main branch
666    o DIVA:
667      Modif.s in
668      - the_main_loop.F
669      - the_model_main.F
670      and added cost_final_restore.F cost_final_store.F
671      o With these changes, it is possible to fully separate
672        the first forward run to compute the cost function (mdthe_main_loop)
673        and adjoint runs over individual DIVA intervals (adthe_main_loop)
674        into separate model executions.
675        This enables better tuning of DIVA to given queue sizes.
676      o Loss of cost function value in consecutive DIVA runs is
677        fixed by storing to 'costfinal' file.
678      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
679        beginning/end of adjoint integration is accounted for.
680      The current changes apply to TAF-1.4.26.
681      TAF has one remaining bug, requiring one manual change
682      (see MITgcm manual).
683    o cal: synchronized between MAIN and ecco-branch
684    
685    checkpoint48i_post
686    o Changes to restore differentiability of code w.r.t. previous tag
687      (mostly adding new routines to make list and replacing
688      pressure by totPhiHyd).
689    o Updated and merged grdchk package
690      - has both ADM and TLM checks
691      - works for single- and multi-proc.
692      - output cleaned
693      - worked successfully for parallel DIVA
694    o genmake:
695      - Adding -platform=SP4
696      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
697    o Modif. for DIVA:
698      ctrl_unpack should not be called in intermediate DIVA interval.
699      (similar thing would apply for active files such as
700      tbar, sbar, psbar, which should not be reinitialised;
701      only relevant for ecco-branch)
702    
703    checkpoint48h_post
704    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
705    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
706    o Added SEAICE_initialHEFF to pkg/seaice
707    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
708    
709    checkpoint48g_post
710    --- EOS:
711    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
712      store total Potential in totPhyHyd for diagnostics & EOS.
713    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
714    --- Pressure/geopotential gradient:
715    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
716    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
717      ( changes results of global_ocean_pressure )
718    o NLFS + z-coord.: add eta*Rho' contribution.
719    o accurate phiHyd when using interface-W at the middle between 2 centers
720     ( changes results of ideal_2D_oce )
721    o includes r* 2nd term in potential gradient.
722    
723    checkpoint48f_post
724    Merging from release1_p12:
725    o Modifications for using pkg/exf with pkg/seaice
726      - improved description of the various forcing configurations
727      - added basic radiation bulk formulae to pkg/exf
728      - units/sign fix for evap computation in exf_getffields.F
729      - updated verification/global_with_exf/results/output.txt
730    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
731      (SBO) core products, including oceanic mass, center-of-mass,
732      angular, and bottom pressure (see pkg/sbo/README.sbo).
733    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
734      to avoid negative values in shallow regions.
735      - updated verification/natl_box/results/output.txt
736      - updated verification/lab_sea/results/output.txt
737    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
738    o Added useSingleCpuIO option (see PARAMS.h).
739    o Updated useSingleCpuIO option in mdsio_writefield.F to
740      work with multi-field files, e.g., for single-file pickup.
741    o pkg/seaice:
742      - bug fix in growth.F: QNET for no shortwave case
743      - added HeffFile for specifying initial sea-ice thickness
744      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
745    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
746      kpp_transport_t.F, forward_step.F, and the_main_loop.F
747    o pkg/seaice:
748      - adjoint-friendly modifications
749      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
750    
751    checkpoint48e_post
752    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
753    o dynamics: change definition of computational domain & adapt mom_fluxform
754      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
755    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
756        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
757        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
758        global_ocean.90x40x15 global_with_exf global_ocean_pressure
759        inverted_barometer solid-body.cs-32x32x1
760      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
761    
762    checkpoint48d_post
763    o in preparation for r*:
764     a) use pre-computed gradient of hydrostatic potential:
765        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
766     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
767        => affects results of glob_oce_pressure (different truncation error)  
768      update output.txt of ideal_2D_oce & global_ocean_pressure
769    
770    checkpoint48d_pre
771    o in preparation for r*:
772      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
773      pass the 2 comp. of the grad. as arguments to momentum S/R.
774      but for the moment, only used if it does not change the results.
775    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
776    
777    checkpoint48c_post
778    Modifications in treatment of initial flux forcing controls
779    to avoid extra storing of flux fields.
780    
781    checkpoint48c_pre
782    o Added tidal_basin_2d experiment (currently 1D!)
783    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
784    
785    checkpoint48b_post
786    o r* coordinate added in #ifdef NONLIN_FRSURF block.
787     (modification to pressure gradient not yet implemented)
788    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
789      (for U & V) that are used for vertical advection of momentum.
790    
791    checkpoint48a_post
792    o In preparation for r*, use temp. array to compute vertical transport
793       in flux-form momentum pkg. => change results of few test-exp.
794      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
795                        lab_sea, natl_box & plume_on_slope
796    
797    checkpoint48
798    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
799    
800    checkpoint47j_post
801    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
802    o moved adexch from forward_step to addummy_in_stepping
803    o added exch in ctrl_map_...
804    o aveFreq.=0. at end of cost_final to avoid overwrite in
805      reverse checkpointing loop
806    o Yet more changes in gmredi:
807      * adgmredi_calc_tensor
808        avoiding all recomputation of gmredi_slope_limit
809      * adgmredi_x/y/rtransport
810        added flag for excessive storing to avoid recomp. of
811        u/v/rtans, dTdx/y/z
812        -> this is not really necessary and very memory-consuming
813      * adgmredi_slope_psi:
814        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
815      * gmredi_slope_limit
816        re-activated full calculation of taperfct for case 'ac02'
817    o updating verification/ adjoints of carbon, global_ocean.90x40x15
818    
819    checkpoint47i_post
820    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
821    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
822      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
823    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
824    o gmredi: fix few bugs.
825    
826    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
827    This will be a good checkpoint to plug into the ecco-branch.
828    o few modif.'s to get latest version adjointed
829      (mainly kick out code in ini_linear_phisurf)
830    o modif's to run adjoint with exactConserv
831    o case GM_BOLUS_ADVEC should be cleaned
832      S/R gmredi_slope_psi should be cleaned
833    o verification/carbon now has exactConserv=.TRUE.
834    
835    checkpoint47g_post
836    o time-average AIM output: becomes independent from statvars time-average
837      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
838    o After TAF bug fix:
839      Tested adjoint of gmredi package.
840      Tests were done with checkpoint47 rather than with latest
841      checkpoint47f_post since the latter is broken for the adjoint
842      verification/carbon/ contains both ADM and TLM gradient checks.
843    Here they are, before they get changed/lost/stolen.
844    Mostly modif.'s to fix numerical sensitivities.
845    Gradient checks OK for
846    - GM_taper_scheme:
847      * clipping
848      * ac02
849      * linear
850      * glw91
851      * dm95
852      * ldd97
853    - GMREDI_OPTIONS:
854      * GM_VISBECK_VARIABLE_K
855      * GM_NON_UNITY_DIAGONAL
856      * GM_EXTRA_DIAGONAL
857      * GM_BOLUS_ADVEC
858    in conjunction with data.gmredi parameters to be checked in
859    in a few minutes under verification/carbon/code/
860    
861    checkpoint47f_post
862    Merging from release1_p10:
863    o modifications for using pkg/exf with pkg/seaice
864      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
865        and SEAICE_EXTERNAL_FLUXES
866      - pkg/exf CPP options EXF_READ_EVAP and
867        EXF_NO_BULK_COMPUTATIONS
868      - usage examples are Experiments 8 and 9 in
869        verification/lab_sea/README
870      - verification/lab_sea default experiment now uses
871        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
872    
873    checkpoint47e_post
874    o created a tag prior to creating a branch
875    
876    checkpoint47d_post
877    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
878      at the bottom boundary had an erroneous half slip boundary condition
879    o added bottom drag and no slip boundary condition capabilities to
880      oceanic pressure coordinates code
881    o added new verification experiment global_ocean_pressure, this experiment is
882      also described in the tutorial section of the manual
883    checkpoint47d_pre
884    
885    checkpoint47c_post
886    o Added a verification experiment for a global cubed-sphere ocean run
887      -  verification/global_ocean.cubed32x32x30
888      -  uses pkg/therm_seaice and pkg/bulk_forcing
889    
890    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
891    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
892      when using P-coordinate; only implemented for atmospheric config.
893    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
894      NOTES: requires option NONLIN_FRSURF to be "#define".
895    o update advect_xz/results/output.txt (left from checkpoint44g_post)
896    
897    checkpoint47b_post
898    Merging from release1_p9:
899    o pkg/seaice
900      - removed GOTO's and added taf directives
901      - double precision constants to reduce the g77 (Linux)
902        to F77 (SGI) differences reported in release1_p8
903    o tools/genmake
904      - added SGI options
905    o verification/testscript
906      - updated to that of checkpoint47a_post
907    o verification/global_ocean.90x40x15/input/eedata
908      - modified for SGI f77 compatibility
909    o verification/lab_sea
910      - added description of sea-ice model
911      - added missing matlab routines
912      - added test of thermodynamics parallelization
913    
914    checkpoint47a_post
915    o new pkg: aim_v23
916     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
917       for now, keep the same surface forcing as before.
918     - Part-Cell implemented into AIM; check that Heat & Water are conserved
919     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
920     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
921    o add diagnostic of surface correction term in monitor output
922    
923    o bulk_force and therm_seaice
924    - Two packages:  bulk_force (Bulk forcing)
925      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
926    - Earlier integration from Stephaine Dutkiewicz
927      and Patrick Heimbach.
928    - Two ifdef statements for compile time,
929       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
930    
931    checkpoint47
932    differentiable version of checkpoint46n_post
933    o bug fix in quasihydrostaticterms
934    o * "clean" adjoint code (in terms of extensive recomputations)
935        can now be obtained for all GMREDI options (i.e. for
936        - GM_VISBECK_VARIABLE_K
937        - GM_NON_UNITY_DIAGONAL
938        - GM_EXTRA_DIAGONAL
939        - GM_BOLUS_ADVEC )
940      * However, wrong gradient check problem remains unsolved.
941      * New CPP options have been introduced for different
942        tapering schemes
943    o external_fields_load now part of differentiation list
944    o pressure needs multiple storing;
945      would be nice to have store_pressure at beginning or
946      end of forward_step, e.g. by having phiHyd global (5-dim.)
947      (NB: pressure is needed for certain cases in find_rho,
948      which is also invoked through convective_adjustment).
949    o recomputations in find_rho for cases
950     'JMD95'/'UNESCO' or 'MDJWF' are OK.
951    o #define ATMOSPHERIC_LOADING should be differentiable
952    o ini_forcing shifted to begining of initialise_varia
953    o Incorporating QNVS line search routines into MITgcm
954      (this is separate code, and therefore not under pkg)
955      lsopt/, optim/
956    o Updated verification/carbon/
957      - #define GM_VISBECK_VARIABLE_K
958      - GM_taper_scheme    = 'ldd97'    
959    
960    checkpoint46n_post
961    Merging from release1_p8:
962    o verification/natl_box:
963      updating new external_fields_load routine
964    o New package: pkg/seaice
965      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
966      The sea-ice code is based on Hibler (1979-1980).
967      Two sea-ice dynamic solvers, ADI and LSR, are included.
968      In addition to computing prognostic sea-ice variables and diagnosing
969      the forcing/external data fields that drive the ocean model,
970      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
971      The implied surface heat flux is then stored in variable
972      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
973      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
974      non-local transport term.  Because this call precedes model
975      thermodynamics, temperature under sea-ice may not be "exactly" at
976      the freezing point by the time theta is dumped or time-averaged.
977      N.B.: fairly large differences in accuracy occur across
978            different platforms/compilers; comparison between
979            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
980            generated output gives:
981       T           S           U           V
982      C D M    c        m  s        m  s        m  s        m  s
983      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
984      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
985      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
986    
987      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
988    o GAD:
989      - generated new common blocks to account for call of
990        same gad routines with differing traceridentities
991        (needed to modify tracerIdentity indices in GAD.h)
992      - generated separate common blocks for case useCubedSphereExchange
993        (Department of Futurology)
994      - parameter lists to gmredi_?transport: added tracerIdentity
995      - added new key indices to tamc.h
996    o external_fields_load:
997      - added this routine to TAF list
998      - needed to make some common blocks global and additional storing
999        along the same lines as exf package (checkpoint_lev?_directives.h)
1000    o exf:
1001      updated external forcing package
1002      - bug fixes carried over from ecco-branch
1003        (missing OBCS_OPTIONS.h in two routines)
1004      - enable easy to use "no forcing".
1005      - added exf I/O for atmospheric loading
1006      - added exf I/O for runoff data
1007      - transfered scaling between exf <-> MITgcm to exf namelist
1008    o Adding new verification experiment global_with_exf.
1009      This verification experiment is almost identical to the
1010      global_ocean.90x40x15 experiment, except that it uses
1011      the exf (and cal) package instead of the
1012      external_fields_load routine (cf README file).
1013    
1014    checkpoint46m_post
1015    o modified testscript to return -- when there are no lines of "%MON" output
1016    o added new flag "quasiHydrostatic" for QH mode
1017      and new routine quasihydrostaticterms()
1018    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1019      New routine: mom_u_coriolis_nh()
1020    o fixed sign of non-hydrostatic metric terms in u and v equations.
1021      Depend on correct sign of gravitySign.
1022    o added work.pc* to .cvsignore in aim directories using ifc
1023    o introduced flag for controllin non-hydrostatic metric terms
1024    o removed gravitySign from PARM04
1025    o switched to g77/ifc from pgf77 in aim experiments
1026    
1027    checkpoint46l_post
1028    o made convective adjustment work with pressure coordinates:
1029     - changed the direction of k-loop in convective_adjustment.F for the
1030       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1031     - adjusted the reference pressure k-index in convective_adjustment.F
1032     - adjusted the convection condition in convect.F (in analogy to
1033       calc_ivdc.F)
1034     - convective_adjustment no longer computes anything on the halos
1035     - removed the warnings about negative salinity from find_rho.F and
1036       find_alpha.F; instead the new routine look_for_neg_salinity, called
1037       at the beginning of find_rho, find_alpha, and find_beta, does a
1038       check of the entire slice, if CPP-option
1039       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1040    checkpoint46l_pre
1041    
1042    checkpoint46k_post
1043    o fixed the verification/global_ocean.90x40x15 experiment:
1044     - new bathymetry (the world according to A., JMC, and M.)
1045     - new initial fields and forcing fields (*.bin files)
1046     - new POLY3.COEFFS (for the next release one should switch to a full
1047       equation of state: JMD95P or MDJWF)
1048     - fixed several errors and redundancies in the data file
1049     - experiment uses looped cells
1050     - added matlab directory with diagnostic scripts for plotting of output
1051    
1052    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1053     - read AIM physics parameters from a file (data.aimphys)
1054     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1055    
1056    checkpoint46j_post
1057    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1058    o move wVel computation at the end of the time step, in S/R integr_continuity
1059    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1060    o update timeave pkg for wVel diagnostic.
1061    checkpoint46j_pre
1062    
1063    checkpoint46i_post
1064    o Clean up AIM package (and keep the results unchanged):
1065      include CPP_OPTION and use IMPLICT NONE in all routines ;
1066      declare all the variables _RL ; use _d 0 for all numerical constants.
1067      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1068    
1069    checkpoint46h_post
1070    o cleaned up the use of rhoNil and rhoConst.
1071      - rhoNil should only appear in the LINEAR equation of state, everywhere
1072        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1073        and the dynamical equations are all divided by rhoConst
1074    o introduced new parameter rhoConstFresh, a reference density of fresh
1075      water, to remove the fresh water flux's dependence on rhoNil. The default
1076      value is 999.8 kg/m^3
1077    o cleanup up external_forcing.F and external_forcing_surf.F
1078      - can now be used by both OCEANIC and OCEANICP
1079    checkpoint46h_pre
1080    
1081     Added code to convert surface volume flux (fresh water) into
1082     a mass flux when using P coordinates in the ocean (OCEANICP).
1083     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1084    
1085    checkpoint46g_post
1086    o Include a new diagnostic variable phiHydLow for the ocean model
1087      - in z-coordinates, it is the bottom pressure anomaly
1088      - in p-coordinates, it is the sea surface elevation
1089      - in both cases, these variable have global drift, reflecting the mass
1090        drift in z-coordinates and the volume drift in p-coordinates
1091      - included time averaging for phiHydLow, be aware of the drift!
1092    o depth-dependent computation of Bo_surf for pressure coordinates
1093      in the ocean (buoyancyRelation='OCEANICP')
1094      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1095        Theta, Salinity, and Pressure in the parameter list. This routine is
1096        presently contained in find_rho.F. This routine does not give the
1097        correct density for 'POLY3', which would be a z-dependent reference
1098        density.
1099    o cleaned up find_rho
1100      - removed obsolete 'eqn' from the parameter list.
1101    o added two new verification experiments: gop and goz
1102      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1103    checkpoint46g_pre
1104    
1105    checkpoint46f_post
1106    o Enable tangent linear (forward mode) gradient checks:
1107      - extended active file handling to g_... files
1108      - added TANGENT_SIMULATION to theSimulationMode
1109      - extended grdchk package accordingly
1110    o added tangent linear setup in verification/carbon/code_ftl
1111    o added adjoint setup in verification/front_relax/code_ad
1112    
1113    checkpoint46e_post
1114    o Added new equation of state -> MDJWF
1115      - EOS of McDougall et al., 2002, JAOT, submitted
1116      - caveat: the equation of state is only valid for a smaller (more
1117        realistic?) range of values than JMD95P/Z and UNESCO
1118      - added masks to the calculation of pressure in store_pressure
1119      - added more check values for density in check_eos (ini_eos.F), some of
1120        the old check values are out of the range of the MDJWF-eos, so don't
1121        expect perfect matches for those
1122    checkpoint46e_pre
1123    
1124    checkpoint46d_post
1125    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1126      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1127      case of pressure coordinates. eosType='JMD95Z' in
1128      combination with buoyancyRelation='OCEANICP' now causes an error.
1129    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1130      in find_alpha/beta.
1131    checkpoint46d_pre
1132    
1133    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1134      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1135    
1136    checkpoint46c_post
1137    o Changes necessary for ocean in p-coordinates
1138     -  Added new buoyancy relation = 'OCEANICP'
1139     -  Added new parameters = gravitySign (this used to be contained inside
1140        the factor dRdZ which I added when we first switched to R coordinates).
1141     X GM/Redi is not compatible (yet)
1142     X bottom drag and no-slip need to be debugged.
1143    checkpoint46c_pre
1144    
1145    checkpoint46b_post
1146    o Added new equation of state -> JMD95Z and JMD95P
1147      - EOS of Jackett and McDougall, 1995, JAOT
1148      - moved all EOS parameters into EOS.h
1149      - new routines ini_eos.F, store_pressure.F
1150    o Added UNESCO EOS, but not recommended because it requires
1151      in-situ temperature (see JMD95)
1152    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1153      unesco.f to be used with POLY3
1154    checkpoint46b_pre
1155    
1156    checkpoint46a_post
1157    o Added (atmospheric) pressure loading
1158      - new field in FFIELDS.h, etc...
1159      - new cpp flag ATMOSPHERIC_LOADING
1160    o Changed hFacC to _hFacC in calc_phi_hyd.F
1161    o Added SHORTWAVE_HEATING to some files for consistency
1162    checkpoint46a_pre
1163    
1164    checkpoint46
1165    further merges from release1_p5
1166    o new ctrl package
1167      - adopted from ECCO environment to enable optimization
1168      - added Eliassen Palm fluxes to controls
1169    o added Eliassen Palm flux controls to gradient check package
1170    o cost package
1171      - Compatible with new ctrl package
1172      - added Eliassen Palm cost hooks
1173      - modif's of existing cost functions
1174    o Adjoint-related bug fixes in kpp:
1175      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1176      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1177    o autodiff package
1178      - flow directives:
1179        + new for S/R do_the_model_io
1180        + enhanced for S/R checkpoint
1181        + new gmredi.flow
1182      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1183        disable adcommon.h/g_common.h by default.
1184      - fixed problem for adjoint of global_max
1185    o modified verification/carbon/
1186    o New setup for adjoint of global_ocean
1187    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1188    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1189    o incorporated hooks for sponge layer code (external_forcing.F)
1190    
1191    checkpoint45d_post
1192    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1193    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1194      (affects plume_on_slope "cg2d" output)
1195    o add new parameter deltaTfreesurf for free-surface time stepping
1196    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1197    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1198    o change phiMin in exp1 (to agree with documentation)
1199    o add new flags:
1200     - T,S forcing inside/outside Adams-Bashforth
1201     - turn off temp,salt advection and/or forcing
1202     - for each tracer, define internal flag for multiDimAdvection & A-B
1203    o monitor: change definition of KE to check conservation of Energy
1204    
1205    checkpoint45c_post
1206    o Removed f90 comments ("!")
1207    o Modified initialisations to enable exf package for MITgcm
1208      (without invoking ECCO_PACKAGE).
1209    o modifications to gradient check package (Martin Losch)
1210      - enable centered differences
1211      - modified format of standard output
1212    
1213    checkpoint45b_post
1214    o cleaned exchange calls in cg2d
1215    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1216    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1217      to configure barotropic setup (Martin Losch)
1218    o moved some initialisations within bi,bj loop in dynamics
1219      (TAF flow dependency)
1220    o in initialise_varia, moved call packages_init_variables
1221      before convective_adjustment_init
1222      (corresponding adjustment of TAF tape initialisation).
1223    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1224    
1225    checkpoint45a_post
1226    o compute Rho over the whole domain (extend iMin,jMin indices)
1227    o specific exchange for X-slice domain (case Ny=1)
1228    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1229    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1230    
1231    checkpoint44h_post = checkpoint45
1232    o Fix to restore differentiability:
1233      place at which packages_init_variables is called in
1234      initialise_varia is crucial for reverse control flow.
1235    o modifications in GMRedi to enable stable adjoint
1236      (corresponding modif's in thermodynamics, dynamics)
1237    o added missing hook for sponge layer code in external_forcing
1238    o modified test cost functions
1239    o storing in gad_advection (plus removal of write(0,*)!
1240    o missing headers TR1.h added in convective_adjustment routines
1241    o errorMessageUnit set non-equal zero in eeboot
1242      (conflict on some platforms, e.g. IBM SP3)
1243    o modified carbon verif.
1244    
1245    checkpoint44h_pre
1246    o vertical grid option: allow to put the Interface at the middle between
1247      2 cell-centers ; replace delZ in pkg/kpp by drF.
1248    o GM Advective form: Tracers are advected using the residual transport (=
1249      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1250    
1251    checkpoint44g_post
1252    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1253      results) ; ifdef missing in thermodynamics.F
1254    
1255    checkpoint44f_pre,checkpoint44f_post
1256    o added PTRACERS package
1257      This allows an arbitrary number of passive tracers to be integrated
1258      forward simultaneously with the dynamicaly model.
1259      + Implemented so far:
1260        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1261        - I/O and checkpointing
1262        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1263      + Not implemented so far:
1264        - KPP
1265        - OBCS
1266      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1267        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1268        line in data.pkg.
1269      + This package is disabled by default since it increases storage.
1270    
1271    
1272    o testscript: added -cleanup option
1273    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1274                 b) enable to filter 2D fields.
1275    
1276    checkpoint44e_pre,post
1277    o re-wrote convective adjustment to use pre-calculated weights
1278      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1279      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1280      Original calls to convect() still in place.
1281    
1282    chkpt44d_pre,post
1283    o added missing EXCLUDE_MONITOR flags
1284    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1285      (incompatible typ in MIN/MAX expressions caused problems
1286      on IBM SP3)
1287    o in genmake added variable MAKEDEPEND
1288      plus resetting for case SunOS
1289    o added timer_stats.c routine for IBM SP3
1290    o removed variables in dynamics
1291    !!! I forgot to create tag chkpt44d_pre !!!
1292    !!! But chkpt44d_pre = chkpt44c_post    !!!
1293    
1294    o real fresh water flux implemented with non-linear free-surface.
1295    
1296    chkpt44c_pre,post
1297    o few fix (mask in shap_s2, EmPmR in external_field_load,
1298      USE_NATURAL_BCS in solve_for_P);
1299    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1300    
1301    checkpoint44b_pre/_post
1302    o merge of relevant stuff from the ecco-branch:
1303      - genmake: removed $S64 overwrite for case SunOS
1304      - pkg/exf: update and corrections for field swapping and obcs
1305      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1306                  harmonized between ECCO and MITgcm
1307      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1308                      updated checkpointing_lev... lists for obcs
1309      - model/src: minor changes in forward_step, plot_field
1310                   added directive for divided adjoint in the_main_loop
1311      - pkg/mdsio: added mdsio_gl_slice
1312    
1313    o check parameters & config (chkpt44a_pre,post)
1314    o OBC and NonLin_FrSurf.
1315    
1316    checkpoint44
1317    o fix bug in mom_vi_del2uv
1318    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1319    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1320    o update AIM experiments (NCEP input files)
1321    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1322    o added some stuff for AD
1323    
1324    checkpoint43
1325    o added two new advection tests
1326    o added global 4x4 degree ocean test
1327    o added test of H&S94 with free surface on cube
1328    o some final mods for gradient check, adjoint,...
1329    
1330    checkpoint42
1331      Fixed AD-related problems:
1332    o Store directives up-to-date with re-arranged Adams-Bashforth
1333      (mainly thermodynamics.F)
1334    o New store directives for multi-dim. advection schemes
1335      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1336      * new common block and key passkey
1337      (mainly gad_advection.F)
1338    o Modified store directives for split of dynamics/thermodynamics
1339      for the case ALLOW_KPP
1340    o Cleaned argument list for timestep_tracer.F
1341    
1342    checkpoint41
1343    o re-formatted/added comments in prologues of key subroutines
1344      to work with protex
1345    
1346    checkpoint40
1347    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1348    o added FLT (floats) package from Arne along with demo. experiment
1349    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1350      implementation of forward-in-time forcing terms
1351    o more mods for non-linear free-surface including new variable
1352    o modified multi-dim method to work on cube
1353    o bug fix in KPP (from DM)
1354    
1355    checkpoint40pre9
1356    o added DST advection schemes
1357    o fix MPI bug on SGI's
1358    o modifications for non-linear free-surface
1359    o fixed conditionals for fixed flow/passive tracer only mode
1360    o added tension/strain form of stress tensor
1361    o changes to commenting of arguments for TAF/TAMC
1362    o added/updated many matlab scripts
1363    o added multi-dimensional advection method for tracers
1364      
1365    checkpoint40pre8
1366    o new package rw/
1367      Added method for dumping intermediate local arrays:
1368      mdsio_writetile - same as mdsio_writefield except works from inside
1369                        bi,bj loop
1370      mdsio_writelocal - same as mdsio_writetile except works for local
1371                         arrays
1372      write_local_r? - higher-level wrapper for mdsio_writelocal
1373      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1374      Example given at end of mom_vecinv.F that dumps some local arrays.
1375    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1376      control flux-form versus vector invariant code.
1377      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1378      or genmake -DISABLE ...
1379    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1380      (additional storing is now needed for case vecinv;
1381      currently nothing implemented to switch this storing off
1382      in case fluxform is used since no CPP flag available).
1383    
1384    checkpoint40pre7
1385    o bug fix in dynamics.F
1386      calc_viscosity called before k=1,Nr loop.
1387    o added some #ifdef's ALLOW_PASSIVE_TRACER
1388    o cleaned initialisations in ctrl_map_ini
1389      related to TAF
1390    
1391    checkpoint40pre6
1392    o split dynamics into thermodynamics & dynamics
1393    o corresponding split of calc_diffusivity into
1394      calc_diffusivity, calc_viscosity
1395      (kpp_calc_diff, kpp_calc_visc).
1396    o Added diffkr, kapgm to control variables
1397    o bug fix in gmredi_slope_limit for ldd97
1398    
1399    checkpoint40pre5
1400    o proper initialization of Adams-Bashforth time stepping
1401      + uses forward step for very first step of model (iter=0)
1402    o re-generated *all* output since almost all output is modified by this
1403      change (sorry but we've been putting this one off for about 2 years)
1404      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1405        *not* regenerated since they are already out of date and I don't
1406        want to create the impression that they are suddenly working.
1407    o removed KAP stuff for DEC's
1408    o modified/added many .cvsignore files in */code and */input
1409    o added new expt "solid-body.cs-32x32x1"
1410      + this uses an alternative form of ini_curvilinear_grid.F which
1411        is not necessarily any better than the current one...
1412    
1413    checkpoint40pre4
1414    o added re-initialisations of utrans,vtrans,rtrans in
1415      calc_common_factors which are crucial for TAF.
1416    o extended iMin,jMin range for calc_common_factors,
1417      calc_diffusivity
1418    o added option ALLOW_PASSIVE_TRACER
1419    o a few minor updates and fixes
1420    
1421    checkpoint40pre3
1422    o created calc_gtr1.F for gad package
1423    o split the_main_loop and re-introduced forward_step
1424    o some recomputations of nIter0 for TAMC
1425    
1426    checkpoint40pre2
1427    o Updated to latest branch of AJA, JMC
1428    o Added gradient check package
1429    o Added routines for passive tracer handling
1430    o Added carbon sequestration sensitivity experiment
1431    
1432    checkpoint39
1433     o Modifications and fixes to support TAMC
1434       (mainly missing or wrong directives)
1435     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1436       in addummy_in_stepping
1437     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1438     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1439     o Included following packages:
1440       cal: calendar
1441       exf: external forcing
1442       ecco: essential routines to control use of cal, exf
1443             (NB: this is not the full ECCO environment)
1444     o disabled some packages by default in genmake
1445    
1446    checkpoint38
1447     o see notes_c37_adj.txt
1448     o corrected wrong layer index in external_forcing_t
1449     o replaced the_main_loop/forward_step by the_main_loop
1450     o removed forceoutput from write_state
1451       (replaced criteria for initial/final state)
1452     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1453    
1454    checkpoint37
1455     o mdsio.F routine split and packaged in pkg/mdsio
1456       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1457        used unless genmake -disable=mdsio)
1458     o allow a more precise surface-geopotential gradient for the atmosphere
1459       taking into account the change in space of Alpha (=1/rho) at the surface.
1460     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1461       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1462     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1463       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1464       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1465     o Time-Average diagnostics defined as a pseudo package "timeave".
1466     o pickup files : old pickup (before c35) did not work with new code (c35
1467       and after) unless activating 2 commented lines in initialise-varia.
1468     o Non-Hydrostatic pickup file Pb fixed.
1469     o bug with Rigid-lid version (since c35) fixed.  
1470    
1471    checkpoint36
1472     o implement Crank-Nickelson barotropic time-stepping
1473     o recover Time-Average diagnostics
1474     o fix Pb in checkpoint (PR#19)
1475     o AIM become a standard package ; clean unused CPP_kees
1476    
1477    checkpoint35
1478     o subtantial rewrite of dynamics.f
1479     o allows staggered time-stepping
1480     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1481     o added bottom drag (linear + quadratic)
1482    
1483    checkpoint34
1484     o Modified exchange routines for correct reverse simulation.
1485     o Added verification output to comply with bug fix in impldiff.F
1486       as of c33 (exp2, natl_box).
1487     o Corrected store directives in dynamics.F
1488     o Corrected array boundaries in impldiff.F
1489     o Corrected array dimensions in gmredi.
1490       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1491     o Added routine GLOBAL_SUM_INT to global_sum.F
1492     o Added mdsio_gl.F for ECCO purposes.
1493    
1494    checkpoint33
1495     o Fixed bug in lower BC in impldiff.F
1496     o Fixed confusion about units of forcing arrays in FFIELDS.h
1497       namely Fu,Fv,Qnet,Qsw,EmPmR:
1498       - Removed verification/natl_box/code/external_fields_scale.F
1499         (did not differ from that in model/src)
1500       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1501         (see FFIELDS.h for description)
1502       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1503         kpp_calc.F and kpp_transport_t.F
1504       - Removed model/src/external_fields_scale.F and calls to it
1505       - verification/natl_box uses flux data with "atmospheric" sign so
1506         a special version of external_fields_load.F is used to
1507         change the data as it's read in. This way, the arrays
1508         have the right units and signs at all times tha a user could
1509         possibly use them.
1510     o Corrected genmake to delete a temporary file during configuration
1511    
1512    checkpoint32
1513     o Scaling of forcing fields moved from external_forcing.F to
1514       external_fields_scale.F, called directly after loading fields.
1515     o Surface relaxation terms added to surface tendency fields in
1516       extra subroutine.
1517     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1518       fields.
1519     o Changes in GMRedi to comply with packaging structure.
1520     o Modifications and bug fixes in KPP package.
1521     o Verification experiment for KPP added (verification/nat_box/)
1522    
1523    checkpoint31
1524     o Packages interface brought in line with defined standard
1525       -> new routines packages_...F
1526       -> changes in initialise_fixed.F, initialise_varia.F
1527       -> enables initialisation interface for ECCO package
1528     o Rescaling of external forcing fields immediately after read
1529       (removed from external_forcing.F)
1530       -> new: surface_fields_scale.F
1531       -> affects ini_foorcing.F, external_fields_load.F
1532     o Computation of surface tendencies before tendency updates.
1533       -> new: external_forcing_surf.F
1534     o Change of variable names useGMRedi, useKPP, useECCO
1535     o Further changes in dynamics.F, impldiff.F for TAMC
1536     o Tested for experiments 0, 2, 4.
1537       - not yet tested for GMRedi.
1538       - not yet tested for KPP.
1539    
1540    checkpoint30
1541     o Updates for OBCs
1542     o New experiment for test OBCs (internal_wave)
1543     o New output.txt in verification/exp4/results/
1544     o Updates for KPP: calculation of viscosity corrected, new variables
1545       kpp_dumpFreq and kpp_taveFreq
1546     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1547       and entry for T90 in genmake
1548    
1549    checkpoint29
1550     o packaged KPP and GM/Redi
1551    
1552    checkpoint28
1553     o Corrected initialization of hFacMin for difference vertical coordinates
1554     o Modified calculation of partial cell thickness to more robust algorithm
1555     o config_summary.F: replaced write_1D_... by write_0D_...
1556       read_write.F: added subroutines write_0D_...
1557     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1558       included some initialisations required for TAMC.
1559     o routine calc_isoslopes: modified sqrt computation to make it
1560       differentiable for zero argument.
1561     o routines dynamics, impldiff:
1562       included store directives and tape key computations required for TAMC.
1563     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1564    
1565    checkpoint27
1566     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1567       formulation works properly with variable resolution.
1568     o restructured the calling tree between the_model_main() and dynamics()
1569     o split initialise() into initialise_fixed() and initialise_varia()
1570     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1571       in new routine ini_psurf()
1572    
1573    checkpoint26
1574     o moved some #ifdef in optional routines to encompass everything
1575       except the argument declarations. This was using up some memory.
1576     o fixed macros like _ADT to work with both versions of Linux cpp
1577     o cleaned up some unused and uninitialized variables
1578       (helps when debugging with strict compile options)
1579     o split up CPP_EEOPTIONS.h into options and macros
1580       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1581     o patch for 2 processor JAM mode
1582    
1583    checkpoint25
1584     o updates for OBCs and NH
1585     o dramatically reduced memory usage
1586     o added "JAM" routines for use on Artic network
1587     o parameterization of convection by implicit vertical diffusion
1588     o added a diagnostic of convective index
1589     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1590       (this is was partly for OBCs and NH but also in anticipation of
1591        an explicit free-surface option)
1592     o initial state input files for U and V
1593    
1594    checkpoint24
1595     o Removed some spurious "REAL"s
1596     o Updated KPP to latest version from JPL
1597     o Added a COS(latitude) in horizontal viscosity
1598    
1599    checkpoint23
1600     o Added del^4 diffusion for salt and temperature
1601     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1602    
1603    checkpoint22
1604     o Made many small changes: implicit none, format(i5), etc...
1605     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1606    
1607    checkpoint21
1608     o Introduced new I/O package that supports direct-access records (mdsio.F)
1609     o Split-up mid-level I/O routines
1610     o Updated input data for experiments 0,1,2,4 and 5
1611     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1612    
1613    checkpoint20
1614     o Tidied up open-boundaries some more
1615     o Added non-hydrostatic code
1616     o Fixed some input data
1617     o Modified MPI start-up to work in "coupled" context.
1618    
1619    checkpoint19
1620     o Tidied up directory structure for verification experiments.
1621     o Added new code for open boundaries.
1622     o Corrected advective terms near boundaries.
1623     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1624     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1625     o Split default parameters out of ini_parms.F into set_defaults.F.
1626    
1627    checkpoint18
1628     o Further changes for optional code generation with
1629       CPP - ugh!
1630    
1631    checkpoint17
1632     o Beginning to incorporating modularity
1633       for supporting atmos. and ocean configs.
1634     o Small changes for TAMC complinace
1635     o New ultra simple test case. Barotropic box
1636       configuration "exp0".
1637    
1638    checkpoint16
1639     o Minor changes to exchange routines to support
1640       accumulation in reverse mode. Adjoint of an
1641       assignment is an addition.
1642     o Changes to support compilation by TAMC (LR(1)
1643       syntax) and by g77 under Linux ( 72 character
1644       limit ).
1645    
1646    checkpoint15
1647     Rewrote exchange routines to allow
1648     o General tile <-> tile connectivity.
1649     o TAMC reverse mode flag ( is this really needed? )
1650     o Variable width overlap and exchange region widths.
1651     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1652       shmput/shmget, VIA, SYSV shmem and every other cool
1653       communication method.
1654    
1655    checkpoint14
1656     Consistent isomorphism chages made. These allow dynamical core
1657     to support both pressure and meters as a vertical coordinate.
1658    
1659    checkpoint13
1660     Release which corrects global_max problem and a couple
1661     of KGM time-averaging diagnostic errors. Also contains
1662     a double-gyre experiment setup as well as the baseline
1663     4 degree global template. The double gyre template is
1664     organised to allow it to be applied automatically to
1665     the baseline configuration.
1666    
1667    branch-point-rdot
1668     A few tidy-ups have been made bt the real point of this
1669     check-point (excuse the pun) is to allow a branch to be
1670     made for the purposes of adding the rDot alterations.
1671     I don't want to commit the rDot to the main-trunk until
1672     we've actually tested it...
1673    
1674    checkpoint12
1675     Tidy up and added generic genmake script (formerly
1676     configure script).
1677     Released to testers.
1678    
1679    checkpoint11
1680     Re-arranged initialise() and introduced ini_vertical_grid()
1681     and ini_masks_etc().
1682    
1683    checkpoint10
1684     Introduced the configure script.
1685     Separated out the diags package.
1686     Added template for writing time-averages of tile/intermediate quantities.
1687     Updated SIZE.h in exp2 and made the data big-endian.
1688    
1689    checkpoint9
1690     MPI fix. Filename changes (meta/data). salbin*y stuff.
1691     General tidy-up.
1692     SST.bin SSS.bin added to verification/exp2
1693    
1694    checkpoint8
1695     Inludes time-dependant forcing and time-averaging.
1696     Works at 4x4 and 2.8125x2.8125 global
1697    
1698    checkpoint7-4degree-ref
1699     Branch from checkpoint7. Released for application to
1700     global modeling and general modeling - process studies, regional
1701     model etc..
1702     Configured for verification/exp2 - 4 degree global, two process.
1703    
1704    checkpoint7
1705     Created by cnh
1706     Simple 4 degree global simulation
1707     configuration.
1708     Includes climatological wind,
1709     hydrography, bathymetry etc
1710     Does not include Heat Flux and E-P
1711    
1712    checkpoint6
1713     Created by cnh
1714     merged checkpoint5 with CD and
1715     spherical polar code.
1716     Still some problems with GM Redi
1717     abd full topography.
1718    
1719    checkpoint5
1720     Created by AJA
1721     contains updates to GM Redi
1722     and reordered timestepping loop
1723     for Implicit Diffusion.
1724    
1725    checkpoint4
1726     Created by cnh
1727     Contains memory saving macros ( _rdxc etc..) for when
1728     grid variations are limited.
1729     Contains polynomial coeffs for EOS and knudsen program
1730     for generation.
1731    
1732  checkpoint3  checkpoint3
1733   Created by cnh   Created by cnh
1734   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 1747  checkpoint1
1747   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
1748   Added non-linear EOS   Added non-linear EOS
1749    
1750  baseline - Original checked in code  baseline
1751     Original checked in code
1752    

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