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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.290 by heimbach, Tue May 11 20:59:19 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint53a_post
7    o restore TAMC compatiility for exf_constants.h
8      (no usage of _d in .h)
9    o Additional storing in KPP in an attempt to fix
10      TAMC problem with adjoint of KPP code.
11      (no success...)
12      Identical code works fine with TAF.
13    
14    checkpoint53
15    o stable checkpoint with up to date adjoint
16      TLM tests only run for 1st grdchk at the moment. Its unclear if
17      this is a code problem or a problem with resetting code for g_
18      variables that is being autogenerated wrong.
19      Otherwise:
20       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
21       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
22         are both still in chaos following their security messes.
23    
24    checkpoint52n_post
25    o various build (mostly genmake2) changes including:
26      - ability to build/run more easily within Cygwin and MacOS X
27      - more complicated Makefiles with a stronger dependence on Gnu Make
28    o pkg/seaice modifications
29      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
30        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
31        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
32      - changed proxy for geostrophic velocity and updated
33        verification/lab_sea/results/* accordingly
34      - removed ADI dynamic solver from pkg/seaice
35      - replaced all occurrences of 1/CSTICE or 1/CSUICE
36        they caused a segmentation fault under certain circumstances
37      - removed unused field WATR
38    o bug fix in exf-package:
39      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
40         now reflect that.
41    o small fixes in the cal-package:
42      - set reference date to first of January for the 'model'-calendar
43      - failing of cal_CheckDate in cal_FullDate now actually results in a
44        warning
45    o small modifications in exf-package to increase flexibility:
46      - change climtempfreeze from a constant to a runtime parameter that
47        is specified in data.exf_clim (default = -1.9)
48      - introduce runtime parameter windstressmax (default = 2.0) that is
49        specified in data.exf
50    o fix in pkg/thsice:
51      - update Evap (Tsf changes) to be consistent with Latent heat flux
52      - maintain snow precipitation unchanged (even if Tsf >=0).
53     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
54    
55    checkpoint52m_post
56    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
57      this does not change any of the results, because myIter=0 in swfrac always
58      lead to jwtype=2 (the default anyway), but the call makes little sense
59      as a default
60    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
61    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
62      atmospheric model (AIM) to use it ; add a "slab ocean" component.
63    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
64    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
65    o extending useSingleCpuIO option to work with new exch2 I/O format
66      - old-style, missing-tile I/O is still accessible by defining CPP
67        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
68    o monitor package can write to NetCDF files and/or STDOUT
69    o fix re-definition bug in MNC_GRID_INIT_ALL()
70    o doc/api_reference added
71      - a framework for building an API Reference Manual using all
72        the "protex" comments embedded in the code
73      - see pkg/generic_advdiff, pkg/mnc for examples
74    o MNC:
75      - make myThid the last argument for all subroutines
76      - new default for the grid files: NO halos
77      - add useMNC and other run-time flags
78      - separate per-file-group handling of the unlimited dimension
79      - early initialization of MNC w/ flags read at the eeboot stage
80        and lookup tables set in initialize_fixed
81      - write all MNC output to a freshly-created directory
82    o thermodynamics sea-ice (thsice) is now tested with testreport.
83    o test exp. advect_cs: use the standard cs32 grid ; update output.
84    o Added functionality to grdchk:
85      pick global i,j,k position (or nearest wet) where to perform check.
86    
87    checkpoint52l_post
88    o new land formulation:
89      a) use ground enthalpy as prognostic variable to ensure exact
90         energy conservation.
91      b) account for water temperature and for latent heat of freezing
92         in all processes (rain, run-off, ground storage)
93      c) compute surface and ground temperature implicitly.
94    o aim_v23 modification for new land model:
95      a) Treat separately land / ocean / sea-ice surface fluxes
96         to allow implicit computation of land & sea-ice surface temp.
97      b) add snow precipitation.
98    checkpoint52l_pre
99    
100    o fix problem (when 1 tile is empty) in min/max monitor.
101    o fix bug in timeAve (u,vZetatave in common block)
102    o no restoring terms under ice for pkg/seaice
103    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
104    o bug fix for pkg/seaice pickups
105    o change MNC call locations and add coordinate attributes
106    o mask vorticity at the corner ; affects global_ocean.cs output
107    o fix ini_curvilinear_grid ; test CS experiments with mpi
108    o aim.5l_cs: modify sea-ice fraction input file ; update output
109    o exf: Adding simple range check routine for exf fields after read
110    
111    checkpoint52k_post
112    o removed top-level directory "diags"
113      - we migrated these functions to pkg/timeave a long time ago
114    o fixed bug introduced in pkg/monitor
115    o accuracy ctrlprec = 32 insuffient for gradient checks using
116      averaged fields (I/O via cost_averages)
117      -> use ctrl.h in active_file*.F to control I/O precision.
118    o paramter list of CALL ADTHE_MAIN_LOOP
119    o added initial do_the_model_io to ecco
120    o set all ...Freq to zero after cost_final
121      taveFreq, dumpFreq, pChkptFreq
122    o MAIN and ECCO differentiability restored
123    
124    checkpoint52j_post
125    o fix nchklev in tamc.h for global_ocean...
126    o Bringing flow and store directives up-to-date
127    o Really weird thing!
128      call do_the_model_io from the_main_loop with parameters
129      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
130      TAF places a faulty re-call of initialise_varia
131      after cost_final call which should not be there!
132    checkpoint52j_pre
133    
134    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
135      error messages
136    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
137    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
138      debug output
139    o modfied mdsio_writefield.F to handle non-global files under exch2
140    o update AIM Cubed-Sphere exp (aim.5l_cs):
141      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
142    o update AIM Equatorial Channel exp:
143      use standard aim_v23 pkg and change the SST fields to be more realistic.
144    o globalFile now works with exch2
145    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
146      mon_vort3.F to make exch2 friendly with >1 tile per cube face
147    o limit timeave output for hi-res integrations
148    
149    checkpoint52i_post
150    o removed CPP_EEOPTIONS.h from verification/*/code
151    o updated the tiling for global_ocean_pressure
152    checkpoint52i_pre
153    
154    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
155      the old pkg/aim).
156    
157    checkpoint52h_pre
158    o shortened offending lines in exch2_send_rx?.template
159    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
160    o genmake2: add build & execute test for NetCDF code
161    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
162      old grid files, moved CPP_EEMACROS.h to pkg/exch2
163    o added useSingleCPUIO flag to monitor.F and mon_out.F
164    o added temporary hack for sea-ice dynamics on the cube:
165      metric terms are ignored and it is assumed that
166      there is no sea-ice on cube faces 1, 2, 4, and 5.
167    
168    checkpoint52f_post
169    o added exch2 cube routines to pkg/exch2
170    o modified hs94.cs-32x32x5 to use it
171    o added new grid files to hs94.cs-32x32x5
172    checkpoint52f_pre
173    
174    checkpoint52e_post
175    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
176      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
177    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
178      to work with implicit vertical advection and AB ;
179    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
180    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
181     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
182    checkpoint52e_pre
183    
184    o fix bug in impldiff when Nr=1 or Nr=2.
185    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
186    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
187    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
188      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
189    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
190    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
191    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
192    
193    checkpoint52d_post
194    o re-tiled many expts to allow comparison in multi-processor mode
195      - updated output accordingly
196      - changed hs94.128x64x5 to use intial T from file rather than use the
197        random number generator
198    o add infrastructure in model routines for fizhi and gridalt packages
199    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
200    o changes to permit hi-res, cubed-sphere, configuration
201      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
202      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
203      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
204        of surface winds for the cube
205      (A verification experiment, based on global_ocean.cs32x15, but with
206       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
207       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
208       complete with example surface forcing files and matlab scripts to look
209       at the output and compare it with that of global_ocean.cs32x15.)
210    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
211       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
212       to conform to the common rule.
213    o check-in the first version of the coupler + interfaces for multi-components
214       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
215       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
216       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
217       - ocean and atmos. share the same horizontal grid (no interpolation).
218       - exchanges between component and coupler is done in forward_step
219    o new verification experiment, cpl_aim+ocn:
220       coupled ocean - AIM atmosphere on cs32 grid.
221    
222    checkpoint52d_pre
223    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
224    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
225    
226    checkpoint52c_post
227    o Fixing OPTIONS files for use of exf:
228      - ALLOW_ECCO not needed
229      - ECCO_CPPOPTIONS.h should not be included from
230        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
231        as has been the case in the past
232      - All cal/exf related options are currently set in
233        single header file. Should remain so until we
234        agree on a consistent new policy.
235    o Removed all CPP options for cal package.
236      cal has no more CPP options.
237    o modified STOREs in GAD_ADVECTION
238    o corrected key comp. for passkey
239    
240    checkpoint52b_post
241    o new version: "thsice" of thermodynamic sea-ice pkg:
242     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
243     - modify fluxes but do not change theta directly;
244     - light cleaning of bulk_force pkg (still needed with thsice).
245     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
246       + output_thsice.txt to test thsice & bulk_force pkgs.
247    o put back grid & coriolis monitor output.
248    checkpoint52b_pre
249    
250    o call "do_the_model_io" at the beginning (=> dump initial state)
251    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
252    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
253      (need info on NUMBER_OF_PTRACERS)
254    o missing PTRACERS headers in some routines
255    o default tamc.h in pkg/autodiff supposed to crash
256      to ensure proper customization
257    
258    checkpoint52a_post
259    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
260      - moved surfaceTendencyTice from pkg/seaice to main code
261      - subroutine FREEZE_SURFACE now limits only surface temperature
262        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
263        => new output.txt for global_ocean.cs32x15 & global_with_exf
264      - keep the old version of FREEZE for backward compatibility;
265        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
266      - corresponding modifs for TAF directives
267    o added surface flux output variables to TIMEAVE_STATVARS
268    o time-averaged output for pkg/ptracers
269    o fix problem with ECCO-related divided adjoint
270      snapshot file was missing some ad-variables,
271      but no warning issued by TAF
272    
273    checkpoint52a_pre
274    o some bug fixes for #undef REAL4_IS_SLOW
275    
276    checkpoint52 = ecco_c52_e35
277    o after testing adjoints of checkpoint51u_post
278    
279    checkpoint51u_post
280    o this is the post-merge tag of the ecco-branch
281      (needs another clean checkout and re-testing)
282    o various natl_box_adjoint configs and results
283      but no input fields
284    o obcs adjoint not yet merged!
285    o adding ECCO global 1x1 and 2x2 degree configs
286    o updated/extended some store directives for seaice
287    o pkg/ecco now containes ecco-specific part of cost function
288    o top level routines the_main_loop, forward_step
289      supersede those in model/src/
290      previous input data.cost now in data.ecco
291      (new namelist ecco_cost_nml)
292    o in ctrl/ cleaned some cross-dependencies and updated CPP options
293    
294    checkpoint51t_post
295    o this is the pre-merge tag of the ecco-branch
296    
297    checkpoint51s_post
298    o cleanup: removed various obsolete #define-s
299    o pkg/grdchk
300      - renamed 'ph-grd 3' to 'grad-res'
301      - merged from ecco-branch
302        (remaining bug fixes for obcs gradient checks)
303      - additional high-precision output for testreport
304        (grep for 'precision_grdchk_result')
305    
306    checkpoint51r_post
307    o cleaned up or removed CPP_OPTIONS.h files
308    o updated results for some of the tests to reflect the new
309      optfiles (-ieee: -O0 instead of -O3)
310    
311    checkpoint51q_post
312    o cd_code:
313      - moved cd_scheme.F -> cd_code_scheme.F
314      - separate read_checkpoint from cd_code_ini_vars.F
315      - separated cd_code part from write_checkpoint
316      - updated AD_SOURCE, generated .flow
317      - added CD_CODE_VARS.h to the_main_loop
318      - Moving cd_code specific store dir.s to pkg/cd_code
319    o ctrl package totally restructured
320      - pack/unpack now optional and decoupled from
321        xx_/adxx_ I/O
322      - ctrl_pack/unpack cleaned
323        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
324      - confined inclusion of AD_CONFIG.h to where necessary.
325    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
326    
327    checkpoint51p_post
328    o create initial cd_code package
329      - WARNING: the initialization of fields within packages
330        is broken because INI_FIELDS (where READ_CHECKPOINT is
331        called) is called *before* PACKAGES_INIT_VARIABLES.
332        This seems to be backwards since
333        1) its important to initially zero the entire field including
334           the "halo" region
335        2) zeroing needs to be done *before* reading pickup info
336           and the pickup call might or might not happen in any
337           particular run
338      - this needs an overhaul for R2
339    o cleanup verification/*/code/GMREDI_OPTIONS.h
340    o cleanup testreport
341    
342    checkpoint51o_post
343    o bringing AD-related verif's up to date with genmake2
344      - carbon/
345      - global_ocean.90x40x15/
346      - hs.94.1x64x5/
347      - (front_relax/ )
348    o (more) consistent directory structure for AD-related verif.'s
349    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
350    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
351    o bug fix in find_alpha.F for MDJWF:
352      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
353        change rho -> rho-rhoConst
354      - replace call find_rho to find_rhonum
355    o initialisation of rFlx extended to full array (required by TAF)
356      and shifted to thermodynamics
357    o removed PTRACERS.h in ptracers routine
358    o added surfacetendencyPtr to S/R parameter list pracers_forcing
359    o Correcting initialisations for fVerU, fVerV.
360    o helping TAF to recognize dependency on kUp for
361      fVerU, fVerV
362    o Replacing delZ by delR in pkg/ctrl/
363    checkpoint51o_pre
364    
365    o undid all of cp51 pending some cleanups and discussion
366    o added the [#include "AD_CONFIG.h"] statement to all files that need
367       it for adjoint/tl #defines
368     o re-worked the build logic in genmake2 to support AD_CONFIG.h
369     o removed tools/genmake since it no longer works
370    
371    checkpoint51n_post
372    o modifications to make FREEZE flux visible to pkg/kpp
373      - moved surfaceTendencyTice from pkg/seaice to main code
374      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
375      - subroutine FREEZE now limits only surface temperature
376        (this means new output.txt for global_ocean.90x40x15,
377         global_ocean.cs32x15, and global_with_exf)
378    o added surface flux output variables to TIMEAVE_STATVARS
379    
380    checkpoint51n_pre
381    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
382    o added [#include "AD_CONFIG.h"] to all files that use the following
383      defines:
384      - ALLOW_ADJOINT_RUN
385      - ALLOW_TANGENTLINEAR_RUN
386      - ALLOW_ECCO_OPTIMIZATION
387    
388    checkpoint51m_post
389    o incorporating changes to get TAMC/TAF working in genmake2
390      - added new TAMC/TAF targets to the Makefile
391      - various cleanups related to package handling
392      - these changes should have no impact on the forward model
393    
394    checkpoint51l_post
395    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
396     - faster algorithm for cal_addtime.F
397     - higher precision arithmetic, where needed
398     - pkg/exf *startdate variables changed from calendar date to
399       model integration time
400    
401    checkpoint51l_pre
402    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
403    o enable to apply restoring on S & T only in a latitude band.
404    o update output (external_forcing_surf modif. change truncation errors)
405       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
406    
407    checkpoint51k_post
408    o change default to: useNHMTerms=.FALSE.
409     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
410       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
411     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
412        exp1, ideal_2D_oce
413     - change data file of oceanic exp (leave the results unchanged for now)
414       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
415    o set gravitySign automatically according to the vertical coordinate used
416      (and change sign: back to "logical" value: +1 when R increases downward)
417    o added an include barrier to the default CPP_OPTIONS.h and
418      removed the #include "PACKAGES_CONFIG.h" from it
419    o fix a bug in mom_fluxform (from chk51j_post)
420    
421    checkpoint51j_post
422    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
423    o adjusted some flow directives (dynamics, thermodynamics)
424    o added cubed-sphere case to test cost function
425    o heckpoint_lev?_directives.h now include
426      pkg-specific directives, whenever those are enabled.
427    o Moving pkg-specific flow directives to corresponding pkg
428      Moving pkg-specific differentiation list to corresponding pkg
429      Moving pkg-specific checkpoint-lev storing to corresponding pkg
430      ---> conventions are
431           - pkg_ad.flow
432           - pkg_ad_diff.list
433           - pkg_ad_check_lev?_dir.h
434    
435    checkpoint51i_post
436    o merge of the branch-genmake2
437      - knowingly breaks the older genmake
438      - automatic generation of all ALLOW_${PKG_NAME} defines
439      - new testreport supersedes older testscript
440    o large number of package inclusion and header cleanups
441    checkpoint51i_pre
442    
443    o new output for adjoin of global ocean vector invariant
444    o fix for checkpoint of thermodynamic seaice and bulk_force
445    o Steph gchem various cleanups
446    
447    checkpoint 51h_pre
448    o fixed some single quotes
449    o modify gchem pkg to be more versatile
450    o modifications to clean up dic pkg
451    o add pkg/cfc
452    
453    checkpoint51g_post
454    o provide links for ARPACK and ADM*TLM
455    o start removing verification/vero/
456    o update AD-related stuff
457      (in particular some IF-statements in model/src/ routines)
458    o adding to verification/global_ocean.90x40x15/ adjoint of
459      vector invariant setup
460    
461    checkpoint51f_post
462    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
463    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
464      of tracer Green's fucntions for ocean inversion project.
465    
466    checkpoint51f_pre
467    o Added on-the-fly spatial interpolation capability
468        "USE_EXF_INTERPOLATION" to pkg/exf.
469      - This is a temporary Cartesian-grid hack until
470        the super-duper ESMF coupler becomes available.
471      - See verification/global_with_exf/README for usage example.
472      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
473        flags and modified pkg/seaice accordingly.
474    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
475        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
476        non-local transport term.
477    
478    checkpoint51e_post
479    o pkg/mom_vecinv:
480      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
481      - add time-ave diagnostic of vorticity advection.
482    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
483    o atmospheric geopotential: - include water vapor effect;
484                                - use p^kappa in p* scaling.
485    o land pkg: read initial state from files.
486    o AIM : add stratospheric drag in the upper level
487    
488    checkpoint51d_post
489    o change function ILNBLNK (=> last non-blank char.) to return zero
490      (instead of the string length) when the string. char is empty
491    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
492    o modif's to restore TAMC compatibility
493      - avoid "_d" constructs in PARAMETER declarations
494      - avoid interrupting lines by comment lines
495    o Use cluster local disks for purely local I/O
496      vs. globally visible disks needed for ctrl stuff
497      (merged from ecco-branch)
498      - new active_file_loc... and mdsio_..._loc routines
499      - affected packages: autodiff, ctrl, grdchk, mdsio
500    
501    checkpoint51c_post
502    o introducing integer flag debugLevel
503      - debLevZero: suppress all output
504      - debLevA: standard
505      - debLevB: equivalent to current debugMode=.TRUE.
506    o introducing pathname variable mdsioLocalDir for mdsio
507      that can be specified at runtime
508      (relevant for cluster I/O to local disk)
509    `
510    >>>checkpoint51b_post
511    adjoint of ptracers
512    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
513    o extended state in checkpoint_lev?, etc.
514    o alternative ctrl/cost with tr1 or ptracer
515    o new comlev1_bibj_ptracers
516    o new ptracers.flow
517    o made ptracers_forcing same as external_forcing_s
518    o added verification for adjoint with ptracers
519      - adm. grdchk fail so far
520      - tlm. grdchk OK
521      - checked tapelev/comlev recomputations: OK
522    <<<checkpoint51b_pre
523    
524    checkpoint51a_post
525    o added code for biogeochemistry package
526      - new pkgs: dic, gchem
527      - new subroutine in ptracers
528    o modify code for biogeo packages
529      - in model/src and pkg/ptracers
530    
531    checkpoint51
532    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
533      - autodiff, ctrl, exf, grdchk, seaice
534      kept separate packages
535      - cost, ecco, obcs
536    o updating verification/internal_wave, verification/lab_sea
537      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
538    
539    checkpoint50i_post
540    o Preparing next differentiable checkpoint and sync
541      of MAIN vs. ecco-branch
542      - 1st step: this one is differentiable
543      - 2nd step: next(! not this) checkpoint will have updated packages
544                  from ecco-branch)
545    
546    checkpoint50h_post
547    o new package "land": provide surface BC for AIM.
548    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
549    o AIM: use true log-P extrapolation for near surface temp (= as in
550        F.Molteni paper) ; update aim.5l_cs output.
551    o New variable in PARM03 for more flexible pickups
552    o somewhat cleaned package initialisation sequence for
553      ctrl/ cost/ ecco/ in packages_... routines
554    
555    checkpoint50g_post
556    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
557      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
558      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
559        made the default because of faster convergence than ADI
560    
561    checkpoint50f_post
562    o exf totally restructured
563      - replaced all exf_set_ routines by one generic exf_set_gen.F
564        and made sure it's still differentiable
565      - split exf_getffields.F into new exf_bulkformulae.F
566      - exf_inscal_/exf_outscal_ suffixes consistent with field names
567      - updated adjoint/makefile and relevant verif. accordingly
568    
569    checkpoint50f_pre
570     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
571          + change Evap over land. (update aim.5l_cs output)
572     o added missing .cvsignores and made uniform across expts
573     o changed configuration of tidal_basin_2d expt
574     o added pkg/debug functions for tracing code in fatal crashes
575     o tidied pkg/monitor to use MONITOR_OPTIONS.h
576     o new fn in pkg/monitor to stop model if solution grows too big
577     o removed lots of single quotes from comments
578    
579    checkpoint50e_post
580    o make KPP work with PTRACERS
581     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
582       nearly a copy of kpp_transport_s
583     - there is no analogue to SurfaceTendencyS, so I have to use
584       gPtr(of the surface layer) instead
585    o add a new platform SunFire+mpi (SunFire 15000) to genmake
586    checkpoint50e_pre
587    
588    checkpoint50d_post
589    o change kpp output from multiple-record state files to single-record state
590      files analogous to write_state.F
591    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
592      analogous to the cg2d-related output.
593    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
594      so that writing to internal file fn (with length 512) fails.
595    checkpoint50d_pre
596    
597    checkpoint50c_post
598    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
599    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
600    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
601    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
602    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
603    
604    checkpoint50c_pre
605    Merging from release1_p13:
606    o bug fix for pkg/seaice dynamic solver
607    o Added SEAICE_initialHEFF to pkg/seaice
608    
609    checkpoint50b_post
610    o store u*,v* in gU,V instead of in guNm1,gvNm1
611    o in order to put the momForcing out of the Adams-Bashforth:
612      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
613      to timestep.F
614    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
615    o re-generate output for highly sensitive test-exp:
616       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
617    
618    checkpoint50b_pre
619    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
620    o corrected CPP option mismatch in exf_Bulk... functions for case
621      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
622    
623    checkpoint50a_post
624    o Bug fix for merging between c50 and KPP.
625      ikey was passed from thermodynamics to kpp_calc via
626      common block rather than being recomputed in kpp_calc,
627      in contradiction with new key itdkey.
628      New key ikppkey created, and tamc.h headers updated.
629    
630    checkpoint50
631    - 2nd step of merge with ecco-branch:
632      merge changes in ecco-branch back into main trunk
633    - bug fix in find_alpha
634    - more storing in gmredi_calc_tensor.F, kpp_routines.F
635    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
636    - merged some sliced AD support routines
637    
638    checkpoint49
639    merged from ecco-branch:
640    o exf:
641      - Enable initialisation of forcing fields to constant
642        (runtime) values.
643      - in exf_getffields.F
644        Reduce i-/j-loop to interior domain, discarding overlaps.
645        That also fixes wrong TAF-key computations for key_1, key_2
646        with bulf formulae.
647      - exf_init.F modify #ifdef for exf_init_evap
648      - exf_getffieldrec.F, ctrl_getrec.F
649        The following INT-usages are not safe:
650          fldsecs  = int(fldsecs/fldperiod)*fldperiod
651          fldcount = int(fldsecs/fldperiod) + 1
652        and were modified.
653    o autodiff: checkpoint_lev...
654      - updated storing for bulk formulae (some arrays were missing)
655      - added state for seaice package
656      - synchronized with main branch
657    o DIVA:
658      Modif.s in
659      - the_main_loop.F
660      - the_model_main.F
661      and added cost_final_restore.F cost_final_store.F
662      o With these changes, it is possible to fully separate
663        the first forward run to compute the cost function (mdthe_main_loop)
664        and adjoint runs over individual DIVA intervals (adthe_main_loop)
665        into separate model executions.
666        This enables better tuning of DIVA to given queue sizes.
667      o Loss of cost function value in consecutive DIVA runs is
668        fixed by storing to 'costfinal' file.
669      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
670        beginning/end of adjoint integration is accounted for.
671      The current changes apply to TAF-1.4.26.
672      TAF has one remaining bug, requiring one manual change
673      (see MITgcm manual).
674    o cal: synchronized between MAIN and ecco-branch
675    
676    checkpoint48i_post
677    o Changes to restore differentiability of code w.r.t. previous tag
678      (mostly adding new routines to make list and replacing
679      pressure by totPhiHyd).
680    o Updated and merged grdchk package
681      - has both ADM and TLM checks
682      - works for single- and multi-proc.
683      - output cleaned
684      - worked successfully for parallel DIVA
685    o genmake:
686      - Adding -platform=SP4
687      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
688    o Modif. for DIVA:
689      ctrl_unpack should not be called in intermediate DIVA interval.
690      (similar thing would apply for active files such as
691      tbar, sbar, psbar, which should not be reinitialised;
692      only relevant for ecco-branch)
693    
694    checkpoint48h_post
695    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
696    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
697    o Added SEAICE_initialHEFF to pkg/seaice
698    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
699    
700    checkpoint48g_post
701    --- EOS:
702    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
703      store total Potential in totPhyHyd for diagnostics & EOS.
704    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
705    --- Pressure/geopotential gradient:
706    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
707    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
708      ( changes results of global_ocean_pressure )
709    o NLFS + z-coord.: add eta*Rho' contribution.
710    o accurate phiHyd when using interface-W at the middle between 2 centers
711     ( changes results of ideal_2D_oce )
712    o includes r* 2nd term in potential gradient.
713    
714    checkpoint48f_post
715    Merging from release1_p12:
716    o Modifications for using pkg/exf with pkg/seaice
717      - improved description of the various forcing configurations
718      - added basic radiation bulk formulae to pkg/exf
719      - units/sign fix for evap computation in exf_getffields.F
720      - updated verification/global_with_exf/results/output.txt
721    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
722      (SBO) core products, including oceanic mass, center-of-mass,
723      angular, and bottom pressure (see pkg/sbo/README.sbo).
724    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
725      to avoid negative values in shallow regions.
726      - updated verification/natl_box/results/output.txt
727      - updated verification/lab_sea/results/output.txt
728    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
729    o Added useSingleCpuIO option (see PARAMS.h).
730    o Updated useSingleCpuIO option in mdsio_writefield.F to
731      work with multi-field files, e.g., for single-file pickup.
732    o pkg/seaice:
733      - bug fix in growth.F: QNET for no shortwave case
734      - added HeffFile for specifying initial sea-ice thickness
735      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
736    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
737      kpp_transport_t.F, forward_step.F, and the_main_loop.F
738    o pkg/seaice:
739      - adjoint-friendly modifications
740      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
741    
742    checkpoint48e_post
743    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
744    o dynamics: change definition of computational domain & adapt mom_fluxform
745      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
746    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
747        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
748        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
749        global_ocean.90x40x15 global_with_exf global_ocean_pressure
750        inverted_barometer solid-body.cs-32x32x1
751      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
752    
753    checkpoint48d_post
754    o in preparation for r*:
755     a) use pre-computed gradient of hydrostatic potential:
756        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
757     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
758        => affects results of glob_oce_pressure (different truncation error)  
759      update output.txt of ideal_2D_oce & global_ocean_pressure
760    
761    checkpoint48d_pre
762    o in preparation for r*:
763      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
764      pass the 2 comp. of the grad. as arguments to momentum S/R.
765      but for the moment, only used if it does not change the results.
766    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
767    
768    checkpoint48c_post
769    Modifications in treatment of initial flux forcing controls
770    to avoid extra storing of flux fields.
771    
772    checkpoint48c_pre
773    o Added tidal_basin_2d experiment (currently 1D!)
774    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
775    
776    checkpoint48b_post
777    o r* coordinate added in #ifdef NONLIN_FRSURF block.
778     (modification to pressure gradient not yet implemented)
779    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
780      (for U & V) that are used for vertical advection of momentum.
781    
782    checkpoint48a_post
783    o In preparation for r*, use temp. array to compute vertical transport
784       in flux-form momentum pkg. => change results of few test-exp.
785      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
786                        lab_sea, natl_box & plume_on_slope
787    
788    checkpoint48
789    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
790    
791    checkpoint47j_post
792    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
793    o moved adexch from forward_step to addummy_in_stepping
794    o added exch in ctrl_map_...
795    o aveFreq.=0. at end of cost_final to avoid overwrite in
796      reverse checkpointing loop
797    o Yet more changes in gmredi:
798      * adgmredi_calc_tensor
799        avoiding all recomputation of gmredi_slope_limit
800      * adgmredi_x/y/rtransport
801        added flag for excessive storing to avoid recomp. of
802        u/v/rtans, dTdx/y/z
803        -> this is not really necessary and very memory-consuming
804      * adgmredi_slope_psi:
805        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
806      * gmredi_slope_limit
807        re-activated full calculation of taperfct for case 'ac02'
808    o updating verification/ adjoints of carbon, global_ocean.90x40x15
809    
810    checkpoint47i_post
811    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
812    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
813      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
814    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
815    o gmredi: fix few bugs.
816    
817    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
818    This will be a good checkpoint to plug into the ecco-branch.
819    o few modif.'s to get latest version adjointed
820      (mainly kick out code in ini_linear_phisurf)
821    o modif's to run adjoint with exactConserv
822    o case GM_BOLUS_ADVEC should be cleaned
823      S/R gmredi_slope_psi should be cleaned
824    o verification/carbon now has exactConserv=.TRUE.
825    
826    checkpoint47g_post
827    o time-average AIM output: becomes independent from statvars time-average
828      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
829    o After TAF bug fix:
830      Tested adjoint of gmredi package.
831      Tests were done with checkpoint47 rather than with latest
832      checkpoint47f_post since the latter is broken for the adjoint
833      verification/carbon/ contains both ADM and TLM gradient checks.
834    Here they are, before they get changed/lost/stolen.
835    Mostly modif.'s to fix numerical sensitivities.
836    Gradient checks OK for
837    - GM_taper_scheme:
838      * clipping
839      * ac02
840      * linear
841      * glw91
842      * dm95
843      * ldd97
844    - GMREDI_OPTIONS:
845      * GM_VISBECK_VARIABLE_K
846      * GM_NON_UNITY_DIAGONAL
847      * GM_EXTRA_DIAGONAL
848      * GM_BOLUS_ADVEC
849    in conjunction with data.gmredi parameters to be checked in
850    in a few minutes under verification/carbon/code/
851    
852    checkpoint47f_post
853    Merging from release1_p10:
854    o modifications for using pkg/exf with pkg/seaice
855      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
856        and SEAICE_EXTERNAL_FLUXES
857      - pkg/exf CPP options EXF_READ_EVAP and
858        EXF_NO_BULK_COMPUTATIONS
859      - usage examples are Experiments 8 and 9 in
860        verification/lab_sea/README
861      - verification/lab_sea default experiment now uses
862        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
863    
864    checkpoint47e_post
865    o created a tag prior to creating a branch
866    
867    checkpoint47d_post
868    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
869      at the bottom boundary had an erroneous half slip boundary condition
870    o added bottom drag and no slip boundary condition capabilities to
871      oceanic pressure coordinates code
872    o added new verification experiment global_ocean_pressure, this experiment is
873      also described in the tutorial section of the manual
874    checkpoint47d_pre
875    
876    checkpoint47c_post
877    o Added a verification experiment for a global cubed-sphere ocean run
878      -  verification/global_ocean.cubed32x32x30
879      -  uses pkg/therm_seaice and pkg/bulk_forcing
880    
881    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
882    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
883      when using P-coordinate; only implemented for atmospheric config.
884    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
885      NOTES: requires option NONLIN_FRSURF to be "#define".
886    o update advect_xz/results/output.txt (left from checkpoint44g_post)
887    
888    checkpoint47b_post
889    Merging from release1_p9:
890    o pkg/seaice
891      - removed GOTO's and added taf directives
892      - double precision constants to reduce the g77 (Linux)
893        to F77 (SGI) differences reported in release1_p8
894    o tools/genmake
895      - added SGI options
896    o verification/testscript
897      - updated to that of checkpoint47a_post
898    o verification/global_ocean.90x40x15/input/eedata
899      - modified for SGI f77 compatibility
900    o verification/lab_sea
901      - added description of sea-ice model
902      - added missing matlab routines
903      - added test of thermodynamics parallelization
904    
905    checkpoint47a_post
906    o new pkg: aim_v23
907     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
908       for now, keep the same surface forcing as before.
909     - Part-Cell implemented into AIM; check that Heat & Water are conserved
910     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
911     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
912    o add diagnostic of surface correction term in monitor output
913    
914    o bulk_force and therm_seaice
915    - Two packages:  bulk_force (Bulk forcing)
916      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
917    - Earlier integration from Stephaine Dutkiewicz
918      and Patrick Heimbach.
919    - Two ifdef statements for compile time,
920       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
921    
922    checkpoint47
923    differentiable version of checkpoint46n_post
924    o bug fix in quasihydrostaticterms
925    o * "clean" adjoint code (in terms of extensive recomputations)
926        can now be obtained for all GMREDI options (i.e. for
927        - GM_VISBECK_VARIABLE_K
928        - GM_NON_UNITY_DIAGONAL
929        - GM_EXTRA_DIAGONAL
930        - GM_BOLUS_ADVEC )
931      * However, wrong gradient check problem remains unsolved.
932      * New CPP options have been introduced for different
933        tapering schemes
934    o external_fields_load now part of differentiation list
935    o pressure needs multiple storing;
936      would be nice to have store_pressure at beginning or
937      end of forward_step, e.g. by having phiHyd global (5-dim.)
938      (NB: pressure is needed for certain cases in find_rho,
939      which is also invoked through convective_adjustment).
940    o recomputations in find_rho for cases
941     'JMD95'/'UNESCO' or 'MDJWF' are OK.
942    o #define ATMOSPHERIC_LOADING should be differentiable
943    o ini_forcing shifted to begining of initialise_varia
944    o Incorporating QNVS line search routines into MITgcm
945      (this is separate code, and therefore not under pkg)
946      lsopt/, optim/
947    o Updated verification/carbon/
948      - #define GM_VISBECK_VARIABLE_K
949      - GM_taper_scheme    = 'ldd97'    
950    
951    checkpoint46n_post
952    Merging from release1_p8:
953    o verification/natl_box:
954      updating new external_fields_load routine
955    o New package: pkg/seaice
956      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
957      The sea-ice code is based on Hibler (1979-1980).
958      Two sea-ice dynamic solvers, ADI and LSR, are included.
959      In addition to computing prognostic sea-ice variables and diagnosing
960      the forcing/external data fields that drive the ocean model,
961      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
962      The implied surface heat flux is then stored in variable
963      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
964      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
965      non-local transport term.  Because this call precedes model
966      thermodynamics, temperature under sea-ice may not be "exactly" at
967      the freezing point by the time theta is dumped or time-averaged.
968      N.B.: fairly large differences in accuracy occur across
969            different platforms/compilers; comparison between
970            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
971            generated output gives:
972       T           S           U           V
973      C D M    c        m  s        m  s        m  s        m  s
974      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
975      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
976      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
977    
978      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
979    o GAD:
980      - generated new common blocks to account for call of
981        same gad routines with differing traceridentities
982        (needed to modify tracerIdentity indices in GAD.h)
983      - generated separate common blocks for case useCubedSphereExchange
984        (Department of Futurology)
985      - parameter lists to gmredi_?transport: added tracerIdentity
986      - added new key indices to tamc.h
987    o external_fields_load:
988      - added this routine to TAF list
989      - needed to make some common blocks global and additional storing
990        along the same lines as exf package (checkpoint_lev?_directives.h)
991    o exf:
992      updated external forcing package
993      - bug fixes carried over from ecco-branch
994        (missing OBCS_OPTIONS.h in two routines)
995      - enable easy to use "no forcing".
996      - added exf I/O for atmospheric loading
997      - added exf I/O for runoff data
998      - transfered scaling between exf <-> MITgcm to exf namelist
999    o Adding new verification experiment global_with_exf.
1000      This verification experiment is almost identical to the
1001      global_ocean.90x40x15 experiment, except that it uses
1002      the exf (and cal) package instead of the
1003      external_fields_load routine (cf README file).
1004    
1005    checkpoint46m_post
1006    o modified testscript to return -- when there are no lines of "%MON" output
1007    o added new flag "quasiHydrostatic" for QH mode
1008      and new routine quasihydrostaticterms()
1009    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1010      New routine: mom_u_coriolis_nh()
1011    o fixed sign of non-hydrostatic metric terms in u and v equations.
1012      Depend on correct sign of gravitySign.
1013    o added work.pc* to .cvsignore in aim directories using ifc
1014    o introduced flag for controllin non-hydrostatic metric terms
1015    o removed gravitySign from PARM04
1016    o switched to g77/ifc from pgf77 in aim experiments
1017    
1018    checkpoint46l_post
1019    o made convective adjustment work with pressure coordinates:
1020     - changed the direction of k-loop in convective_adjustment.F for the
1021       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1022     - adjusted the reference pressure k-index in convective_adjustment.F
1023     - adjusted the convection condition in convect.F (in analogy to
1024       calc_ivdc.F)
1025     - convective_adjustment no longer computes anything on the halos
1026     - removed the warnings about negative salinity from find_rho.F and
1027       find_alpha.F; instead the new routine look_for_neg_salinity, called
1028       at the beginning of find_rho, find_alpha, and find_beta, does a
1029       check of the entire slice, if CPP-option
1030       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1031    checkpoint46l_pre
1032    
1033    checkpoint46k_post
1034    o fixed the verification/global_ocean.90x40x15 experiment:
1035     - new bathymetry (the world according to A., JMC, and M.)
1036     - new initial fields and forcing fields (*.bin files)
1037     - new POLY3.COEFFS (for the next release one should switch to a full
1038       equation of state: JMD95P or MDJWF)
1039     - fixed several errors and redundancies in the data file
1040     - experiment uses looped cells
1041     - added matlab directory with diagnostic scripts for plotting of output
1042    
1043    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1044     - read AIM physics parameters from a file (data.aimphys)
1045     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1046    
1047    checkpoint46j_post
1048    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1049    o move wVel computation at the end of the time step, in S/R integr_continuity
1050    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1051    o update timeave pkg for wVel diagnostic.
1052    checkpoint46j_pre
1053    
1054    checkpoint46i_post
1055    o Clean up AIM package (and keep the results unchanged):
1056      include CPP_OPTION and use IMPLICT NONE in all routines ;
1057      declare all the variables _RL ; use _d 0 for all numerical constants.
1058      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1059    
1060    checkpoint46h_post
1061    o cleaned up the use of rhoNil and rhoConst.
1062      - rhoNil should only appear in the LINEAR equation of state, everywhere
1063        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1064        and the dynamical equations are all divided by rhoConst
1065    o introduced new parameter rhoConstFresh, a reference density of fresh
1066      water, to remove the fresh water flux's dependence on rhoNil. The default
1067      value is 999.8 kg/m^3
1068    o cleanup up external_forcing.F and external_forcing_surf.F
1069      - can now be used by both OCEANIC and OCEANICP
1070    checkpoint46h_pre
1071    
1072     Added code to convert surface volume flux (fresh water) into
1073     a mass flux when using P coordinates in the ocean (OCEANICP).
1074     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1075    
1076    checkpoint46g_post
1077    o Include a new diagnostic variable phiHydLow for the ocean model
1078      - in z-coordinates, it is the bottom pressure anomaly
1079      - in p-coordinates, it is the sea surface elevation
1080      - in both cases, these variable have global drift, reflecting the mass
1081        drift in z-coordinates and the volume drift in p-coordinates
1082      - included time averaging for phiHydLow, be aware of the drift!
1083    o depth-dependent computation of Bo_surf for pressure coordinates
1084      in the ocean (buoyancyRelation='OCEANICP')
1085      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1086        Theta, Salinity, and Pressure in the parameter list. This routine is
1087        presently contained in find_rho.F. This routine does not give the
1088        correct density for 'POLY3', which would be a z-dependent reference
1089        density.
1090    o cleaned up find_rho
1091      - removed obsolete 'eqn' from the parameter list.
1092    o added two new verification experiments: gop and goz
1093      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1094    checkpoint46g_pre
1095    
1096    checkpoint46f_post
1097    o Enable tangent linear (forward mode) gradient checks:
1098      - extended active file handling to g_... files
1099      - added TANGENT_SIMULATION to theSimulationMode
1100      - extended grdchk package accordingly
1101    o added tangent linear setup in verification/carbon/code_ftl
1102    o added adjoint setup in verification/front_relax/code_ad
1103    
1104    checkpoint46e_post
1105    o Added new equation of state -> MDJWF
1106      - EOS of McDougall et al., 2002, JAOT, submitted
1107      - caveat: the equation of state is only valid for a smaller (more
1108        realistic?) range of values than JMD95P/Z and UNESCO
1109      - added masks to the calculation of pressure in store_pressure
1110      - added more check values for density in check_eos (ini_eos.F), some of
1111        the old check values are out of the range of the MDJWF-eos, so don't
1112        expect perfect matches for those
1113    checkpoint46e_pre
1114    
1115    checkpoint46d_post
1116    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1117      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1118      case of pressure coordinates. eosType='JMD95Z' in
1119      combination with buoyancyRelation='OCEANICP' now causes an error.
1120    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1121      in find_alpha/beta.
1122    checkpoint46d_pre
1123    
1124    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1125      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1126    
1127    checkpoint46c_post
1128    o Changes necessary for ocean in p-coordinates
1129     -  Added new buoyancy relation = 'OCEANICP'
1130     -  Added new parameters = gravitySign (this used to be contained inside
1131        the factor dRdZ which I added when we first switched to R coordinates).
1132     X GM/Redi is not compatible (yet)
1133     X bottom drag and no-slip need to be debugged.
1134    checkpoint46c_pre
1135    
1136    checkpoint46b_post
1137    o Added new equation of state -> JMD95Z and JMD95P
1138      - EOS of Jackett and McDougall, 1995, JAOT
1139      - moved all EOS parameters into EOS.h
1140      - new routines ini_eos.F, store_pressure.F
1141    o Added UNESCO EOS, but not recommended because it requires
1142      in-situ temperature (see JMD95)
1143    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1144      unesco.f to be used with POLY3
1145    checkpoint46b_pre
1146    
1147    checkpoint46a_post
1148    o Added (atmospheric) pressure loading
1149      - new field in FFIELDS.h, etc...
1150      - new cpp flag ATMOSPHERIC_LOADING
1151    o Changed hFacC to _hFacC in calc_phi_hyd.F
1152    o Added SHORTWAVE_HEATING to some files for consistency
1153    checkpoint46a_pre
1154    
1155    checkpoint46
1156    further merges from release1_p5
1157    o new ctrl package
1158      - adopted from ECCO environment to enable optimization
1159      - added Eliassen Palm fluxes to controls
1160    o added Eliassen Palm flux controls to gradient check package
1161    o cost package
1162      - Compatible with new ctrl package
1163      - added Eliassen Palm cost hooks
1164      - modif's of existing cost functions
1165    o Adjoint-related bug fixes in kpp:
1166      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1167      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1168    o autodiff package
1169      - flow directives:
1170        + new for S/R do_the_model_io
1171        + enhanced for S/R checkpoint
1172        + new gmredi.flow
1173      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1174        disable adcommon.h/g_common.h by default.
1175      - fixed problem for adjoint of global_max
1176    o modified verification/carbon/
1177    o New setup for adjoint of global_ocean
1178    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1179    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1180    o incorporated hooks for sponge layer code (external_forcing.F)
1181    
1182    checkpoint45d_post
1183    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1184    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1185      (affects plume_on_slope "cg2d" output)
1186    o add new parameter deltaTfreesurf for free-surface time stepping
1187    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1188    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1189    o change phiMin in exp1 (to agree with documentation)
1190    o add new flags:
1191     - T,S forcing inside/outside Adams-Bashforth
1192     - turn off temp,salt advection and/or forcing
1193     - for each tracer, define internal flag for multiDimAdvection & A-B
1194    o monitor: change definition of KE to check conservation of Energy
1195    
1196    checkpoint45c_post
1197    o Removed f90 comments ("!")
1198    o Modified initialisations to enable exf package for MITgcm
1199      (without invoking ECCO_PACKAGE).
1200    o modifications to gradient check package (Martin Losch)
1201      - enable centered differences
1202      - modified format of standard output
1203    
1204    checkpoint45b_post
1205    o cleaned exchange calls in cg2d
1206    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1207    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1208      to configure barotropic setup (Martin Losch)
1209    o moved some initialisations within bi,bj loop in dynamics
1210      (TAF flow dependency)
1211    o in initialise_varia, moved call packages_init_variables
1212      before convective_adjustment_init
1213      (corresponding adjustment of TAF tape initialisation).
1214    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1215    
1216    checkpoint45a_post
1217    o compute Rho over the whole domain (extend iMin,jMin indices)
1218    o specific exchange for X-slice domain (case Ny=1)
1219    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1220    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1221    
1222    checkpoint44h_post = checkpoint45
1223    o Fix to restore differentiability:
1224      place at which packages_init_variables is called in
1225      initialise_varia is crucial for reverse control flow.
1226    o modifications in GMRedi to enable stable adjoint
1227      (corresponding modif's in thermodynamics, dynamics)
1228    o added missing hook for sponge layer code in external_forcing
1229    o modified test cost functions
1230    o storing in gad_advection (plus removal of write(0,*)!
1231    o missing headers TR1.h added in convective_adjustment routines
1232    o errorMessageUnit set non-equal zero in eeboot
1233      (conflict on some platforms, e.g. IBM SP3)
1234    o modified carbon verif.
1235    
1236    checkpoint44h_pre
1237    o vertical grid option: allow to put the Interface at the middle between
1238      2 cell-centers ; replace delZ in pkg/kpp by drF.
1239    o GM Advective form: Tracers are advected using the residual transport (=
1240      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1241    
1242    checkpoint44g_post
1243    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1244      results) ; ifdef missing in thermodynamics.F
1245    
1246    checkpoint44f_pre,checkpoint44f_post
1247    o added PTRACERS package
1248      This allows an arbitrary number of passive tracers to be integrated
1249      forward simultaneously with the dynamicaly model.
1250      + Implemented so far:
1251        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1252        - I/O and checkpointing
1253        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1254      + Not implemented so far:
1255        - KPP
1256        - OBCS
1257      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1258        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1259        line in data.pkg.
1260      + This package is disabled by default since it increases storage.
1261    
1262    
1263    o testscript: added -cleanup option
1264    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1265                 b) enable to filter 2D fields.
1266    
1267    checkpoint44e_pre,post
1268    o re-wrote convective adjustment to use pre-calculated weights
1269      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1270      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1271      Original calls to convect() still in place.
1272    
1273    chkpt44d_pre,post
1274    o added missing EXCLUDE_MONITOR flags
1275    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1276      (incompatible typ in MIN/MAX expressions caused problems
1277      on IBM SP3)
1278    o in genmake added variable MAKEDEPEND
1279      plus resetting for case SunOS
1280    o added timer_stats.c routine for IBM SP3
1281    o removed variables in dynamics
1282    !!! I forgot to create tag chkpt44d_pre !!!
1283    !!! But chkpt44d_pre = chkpt44c_post    !!!
1284    
1285    o real fresh water flux implemented with non-linear free-surface.
1286    
1287    chkpt44c_pre,post
1288    o few fix (mask in shap_s2, EmPmR in external_field_load,
1289      USE_NATURAL_BCS in solve_for_P);
1290    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1291    
1292    checkpoint44b_pre/_post
1293    o merge of relevant stuff from the ecco-branch:
1294      - genmake: removed $S64 overwrite for case SunOS
1295      - pkg/exf: update and corrections for field swapping and obcs
1296      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1297                  harmonized between ECCO and MITgcm
1298      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1299                      updated checkpointing_lev... lists for obcs
1300      - model/src: minor changes in forward_step, plot_field
1301                   added directive for divided adjoint in the_main_loop
1302      - pkg/mdsio: added mdsio_gl_slice
1303    
1304    o check parameters & config (chkpt44a_pre,post)
1305    o OBC and NonLin_FrSurf.
1306    
1307    checkpoint44
1308    o fix bug in mom_vi_del2uv
1309    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1310    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1311    o update AIM experiments (NCEP input files)
1312    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1313    o added some stuff for AD
1314    
1315    checkpoint43
1316    o added two new advection tests
1317    o added global 4x4 degree ocean test
1318    o added test of H&S94 with free surface on cube
1319    o some final mods for gradient check, adjoint,...
1320    
1321    checkpoint42
1322      Fixed AD-related problems:
1323    o Store directives up-to-date with re-arranged Adams-Bashforth
1324      (mainly thermodynamics.F)
1325    o New store directives for multi-dim. advection schemes
1326      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1327      * new common block and key passkey
1328      (mainly gad_advection.F)
1329    o Modified store directives for split of dynamics/thermodynamics
1330      for the case ALLOW_KPP
1331    o Cleaned argument list for timestep_tracer.F
1332    
1333    checkpoint41
1334    o re-formatted/added comments in prologues of key subroutines
1335      to work with protex
1336    
1337    checkpoint40
1338    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1339    o added FLT (floats) package from Arne along with demo. experiment
1340    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1341      implementation of forward-in-time forcing terms
1342    o more mods for non-linear free-surface including new variable
1343    o modified multi-dim method to work on cube
1344    o bug fix in KPP (from DM)
1345    
1346    checkpoint40pre9
1347    o added DST advection schemes
1348    o fix MPI bug on SGI's
1349    o modifications for non-linear free-surface
1350    o fixed conditionals for fixed flow/passive tracer only mode
1351    o added tension/strain form of stress tensor
1352    o changes to commenting of arguments for TAF/TAMC
1353    o added/updated many matlab scripts
1354    o added multi-dimensional advection method for tracers
1355      
1356    checkpoint40pre8
1357    o new package rw/
1358      Added method for dumping intermediate local arrays:
1359      mdsio_writetile - same as mdsio_writefield except works from inside
1360                        bi,bj loop
1361      mdsio_writelocal - same as mdsio_writetile except works for local
1362                         arrays
1363      write_local_r? - higher-level wrapper for mdsio_writelocal
1364      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1365      Example given at end of mom_vecinv.F that dumps some local arrays.
1366    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1367      control flux-form versus vector invariant code.
1368      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1369      or genmake -DISABLE ...
1370    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1371      (additional storing is now needed for case vecinv;
1372      currently nothing implemented to switch this storing off
1373      in case fluxform is used since no CPP flag available).
1374    
1375    checkpoint40pre7
1376    o bug fix in dynamics.F
1377      calc_viscosity called before k=1,Nr loop.
1378    o added some #ifdef's ALLOW_PASSIVE_TRACER
1379    o cleaned initialisations in ctrl_map_ini
1380      related to TAF
1381    
1382    checkpoint40pre6
1383    o split dynamics into thermodynamics & dynamics
1384    o corresponding split of calc_diffusivity into
1385      calc_diffusivity, calc_viscosity
1386      (kpp_calc_diff, kpp_calc_visc).
1387    o Added diffkr, kapgm to control variables
1388    o bug fix in gmredi_slope_limit for ldd97
1389    
1390    checkpoint40pre5
1391    o proper initialization of Adams-Bashforth time stepping
1392      + uses forward step for very first step of model (iter=0)
1393    o re-generated *all* output since almost all output is modified by this
1394      change (sorry but we've been putting this one off for about 2 years)
1395      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1396        *not* regenerated since they are already out of date and I don't
1397        want to create the impression that they are suddenly working.
1398    o removed KAP stuff for DEC's
1399    o modified/added many .cvsignore files in */code and */input
1400    o added new expt "solid-body.cs-32x32x1"
1401      + this uses an alternative form of ini_curvilinear_grid.F which
1402        is not necessarily any better than the current one...
1403    
1404    checkpoint40pre4
1405    o added re-initialisations of utrans,vtrans,rtrans in
1406      calc_common_factors which are crucial for TAF.
1407    o extended iMin,jMin range for calc_common_factors,
1408      calc_diffusivity
1409    o added option ALLOW_PASSIVE_TRACER
1410    o a few minor updates and fixes
1411    
1412    checkpoint40pre3
1413    o created calc_gtr1.F for gad package
1414    o split the_main_loop and re-introduced forward_step
1415    o some recomputations of nIter0 for TAMC
1416    
1417    checkpoint40pre2
1418    o Updated to latest branch of AJA, JMC
1419    o Added gradient check package
1420    o Added routines for passive tracer handling
1421    o Added carbon sequestration sensitivity experiment
1422    
1423    checkpoint39
1424     o Modifications and fixes to support TAMC
1425       (mainly missing or wrong directives)
1426     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1427       in addummy_in_stepping
1428     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1429     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1430     o Included following packages:
1431       cal: calendar
1432       exf: external forcing
1433       ecco: essential routines to control use of cal, exf
1434             (NB: this is not the full ECCO environment)
1435     o disabled some packages by default in genmake
1436    
1437    checkpoint38
1438     o see notes_c37_adj.txt
1439     o corrected wrong layer index in external_forcing_t
1440     o replaced the_main_loop/forward_step by the_main_loop
1441     o removed forceoutput from write_state
1442       (replaced criteria for initial/final state)
1443     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1444    
1445    checkpoint37
1446     o mdsio.F routine split and packaged in pkg/mdsio
1447       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1448        used unless genmake -disable=mdsio)
1449     o allow a more precise surface-geopotential gradient for the atmosphere
1450       taking into account the change in space of Alpha (=1/rho) at the surface.
1451     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1452       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1453     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1454       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1455       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1456     o Time-Average diagnostics defined as a pseudo package "timeave".
1457     o pickup files : old pickup (before c35) did not work with new code (c35
1458       and after) unless activating 2 commented lines in initialise-varia.
1459     o Non-Hydrostatic pickup file Pb fixed.
1460     o bug with Rigid-lid version (since c35) fixed.  
1461    
1462    checkpoint36
1463     o implement Crank-Nickelson barotropic time-stepping
1464     o recover Time-Average diagnostics
1465     o fix Pb in checkpoint (PR#19)
1466     o AIM become a standard package ; clean unused CPP_kees
1467    
1468    checkpoint35
1469     o subtantial rewrite of dynamics.f
1470     o allows staggered time-stepping
1471     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1472     o added bottom drag (linear + quadratic)
1473    
1474    checkpoint34
1475     o Modified exchange routines for correct reverse simulation.
1476     o Added verification output to comply with bug fix in impldiff.F
1477       as of c33 (exp2, natl_box).
1478     o Corrected store directives in dynamics.F
1479     o Corrected array boundaries in impldiff.F
1480     o Corrected array dimensions in gmredi.
1481       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1482     o Added routine GLOBAL_SUM_INT to global_sum.F
1483     o Added mdsio_gl.F for ECCO purposes.
1484    
1485    checkpoint33
1486     o Fixed bug in lower BC in impldiff.F
1487     o Fixed confusion about units of forcing arrays in FFIELDS.h
1488       namely Fu,Fv,Qnet,Qsw,EmPmR:
1489       - Removed verification/natl_box/code/external_fields_scale.F
1490         (did not differ from that in model/src)
1491       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1492         (see FFIELDS.h for description)
1493       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1494         kpp_calc.F and kpp_transport_t.F
1495       - Removed model/src/external_fields_scale.F and calls to it
1496       - verification/natl_box uses flux data with "atmospheric" sign so
1497         a special version of external_fields_load.F is used to
1498         change the data as it's read in. This way, the arrays
1499         have the right units and signs at all times tha a user could
1500         possibly use them.
1501     o Corrected genmake to delete a temporary file during configuration
1502    
1503    checkpoint32
1504     o Scaling of forcing fields moved from external_forcing.F to
1505       external_fields_scale.F, called directly after loading fields.
1506     o Surface relaxation terms added to surface tendency fields in
1507       extra subroutine.
1508     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1509       fields.
1510     o Changes in GMRedi to comply with packaging structure.
1511     o Modifications and bug fixes in KPP package.
1512     o Verification experiment for KPP added (verification/nat_box/)
1513    
1514    checkpoint31
1515     o Packages interface brought in line with defined standard
1516       -> new routines packages_...F
1517       -> changes in initialise_fixed.F, initialise_varia.F
1518       -> enables initialisation interface for ECCO package
1519     o Rescaling of external forcing fields immediately after read
1520       (removed from external_forcing.F)
1521       -> new: surface_fields_scale.F
1522       -> affects ini_foorcing.F, external_fields_load.F
1523     o Computation of surface tendencies before tendency updates.
1524       -> new: external_forcing_surf.F
1525     o Change of variable names useGMRedi, useKPP, useECCO
1526     o Further changes in dynamics.F, impldiff.F for TAMC
1527     o Tested for experiments 0, 2, 4.
1528       - not yet tested for GMRedi.
1529       - not yet tested for KPP.
1530    
1531    checkpoint30
1532     o Updates for OBCs
1533     o New experiment for test OBCs (internal_wave)
1534     o New output.txt in verification/exp4/results/
1535     o Updates for KPP: calculation of viscosity corrected, new variables
1536       kpp_dumpFreq and kpp_taveFreq
1537     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1538       and entry for T90 in genmake
1539    
1540    checkpoint29
1541     o packaged KPP and GM/Redi
1542    
1543    checkpoint28
1544     o Corrected initialization of hFacMin for difference vertical coordinates
1545     o Modified calculation of partial cell thickness to more robust algorithm
1546     o config_summary.F: replaced write_1D_... by write_0D_...
1547       read_write.F: added subroutines write_0D_...
1548     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1549       included some initialisations required for TAMC.
1550     o routine calc_isoslopes: modified sqrt computation to make it
1551       differentiable for zero argument.
1552     o routines dynamics, impldiff:
1553       included store directives and tape key computations required for TAMC.
1554     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1555    
1556    checkpoint27
1557     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1558       formulation works properly with variable resolution.
1559     o restructured the calling tree between the_model_main() and dynamics()
1560     o split initialise() into initialise_fixed() and initialise_varia()
1561     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1562       in new routine ini_psurf()
1563    
1564    checkpoint26
1565     o moved some #ifdef in optional routines to encompass everything
1566       except the argument declarations. This was using up some memory.
1567     o fixed macros like _ADT to work with both versions of Linux cpp
1568     o cleaned up some unused and uninitialized variables
1569       (helps when debugging with strict compile options)
1570     o split up CPP_EEOPTIONS.h into options and macros
1571       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1572     o patch for 2 processor JAM mode
1573    
1574    checkpoint25
1575     o updates for OBCs and NH
1576     o dramatically reduced memory usage
1577     o added "JAM" routines for use on Artic network
1578     o parameterization of convection by implicit vertical diffusion
1579     o added a diagnostic of convective index
1580     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1581       (this is was partly for OBCs and NH but also in anticipation of
1582        an explicit free-surface option)
1583     o initial state input files for U and V
1584    
1585    checkpoint24
1586     o Removed some spurious "REAL"s
1587     o Updated KPP to latest version from JPL
1588     o Added a COS(latitude) in horizontal viscosity
1589    
1590    checkpoint23
1591     o Added del^4 diffusion for salt and temperature
1592     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1593    
1594    checkpoint22
1595     o Made many small changes: implicit none, format(i5), etc...
1596     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1597    
1598    checkpoint21
1599     o Introduced new I/O package that supports direct-access records (mdsio.F)
1600     o Split-up mid-level I/O routines
1601     o Updated input data for experiments 0,1,2,4 and 5
1602     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1603    
1604    checkpoint20
1605     o Tidied up open-boundaries some more
1606     o Added non-hydrostatic code
1607     o Fixed some input data
1608     o Modified MPI start-up to work in "coupled" context.
1609    
1610    checkpoint19
1611     o Tidied up directory structure for verification experiments.
1612     o Added new code for open boundaries.
1613     o Corrected advective terms near boundaries.
1614     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1615     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1616     o Split default parameters out of ini_parms.F into set_defaults.F.
1617    
1618    checkpoint18
1619     o Further changes for optional code generation with
1620       CPP - ugh!
1621    
1622  checkpoint17  checkpoint17
1623   o Beginning to incorporating modularity   o Beginning to incorporating modularity
1624     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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