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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.316 by jmc, Tue Jun 29 23:24:26 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
7      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
8    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
9    o new parameter "nShapS": allow to treat differently S from T (nShapT)
10    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
11    
12    checkpoint53f_post
13    o modifications that affect AIM experiment results (update output.txt):
14      - no advection of S at top interface Nr (pkg/generic_advdiff)
15      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
16    o AIM pkg:
17      - include stability function into surf.Flux derivative relative to Tsurf
18      - calculate clear-sky radiation & surface temp. change (for diagnostics)
19    
20    checkpoint53e_post
21    o merged cylindrical coord configuration
22    o added rotating_tank experiment
23    checkpoint53e_pre
24    
25    checkpoint53d_post
26    o faulks upgraded: re-generate output.txt that have changed:
27       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
28    o Added Bryan and Lewis, 1979, vertical diffusivity profile
29    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
30    o added Sadourny discretization of Coriolis
31      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
32      - re-enabled use of omega3 (useAbsVorticity)
33    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
34      vector-invariant equations
35      - note: does *NOT* yet use same variable visc. for no-slip BC's.
36    o recoded the lateral boundary conditions for non-hydrostatic w, this time
37      hopefully without new bugs
38      - still to do: biharmonic friction for non-hydrostatic w
39    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
40    o regenerated output for global_ocean_ebm (using -ieee)
41    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
42      of mom_common/
43      - simple re-arrangement of instructions within computing loop
44    checkpoint53d_pre
45    
46    checkpoint53c_post
47    o new version of coupler for AIM+thSIce and Ocean models
48     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
49     - land: change Evaporation of snow
50     - aim with thSIce: fix bug in snow-precip.
51    o changes to calc_gw.F
52     - bug fix for w^2 term near the bottom boundary
53     - (hopefully) improve the lateral slip boundary condtions for use with
54        partial/looped cells
55      - because the bug fix changes two verification experiments anyway (exp5
56        and plume on slope), change the lateral boundary condition from half slip
57        to the value of no_slip_sides
58    o ebm package wasnt quite up to the parallel task. Fixed that.
59    o Adjoint of EBM package + verification
60      * TLM OK
61      * ADM not sufficient accuracy yet (needs further testing)
62    
63    checkpoint53b_post
64    o Commiting new energy balance model to repository
65      * package is pkg/ebm
66      * verif. is verification/global_ocean_ebm
67      * references are in ebm_driver.F
68    C      * X. Wang, P. Stone and J. Marotzke, 1999:
69    C        Global thermohaline circulation. Part I:
70    C        Sensitivity to atmospheric moisture transport.
71    C        J. Climate 12(1), 71-82
72    C      * X. Wang, P. Stone and J. Marotzke, 1999:
73    C        Global thermohaline circulation. Part II:
74    C        Sensitivity with interactive transport.
75    C        J. Climate 12(1), 83-91
76    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
77    C        Destabilization of the thermohaline circulation
78    C        by atmospheric eddy transports.
79    C        J. Climate 7(12), 1870-1882
80    o Will need long integration testing.
81    checkpoint53b_pre
82    
83    o created pkg/mom_common in preparation for variable viscosity code
84    o renamed and split ini_mnc_io
85    o pkg/land: only liquid water can diffuse or run-off
86    o AIM using land: soil wetness availability account for snow
87    o added printMapIncludesZeros to EEPARMS namelist
88    
89    checkpoint53a_post
90    o restore TAMC compatiility for exf_constants.h
91      (no usage of _d in .h)
92    o Additional storing in KPP in an attempt to fix
93      TAMC problem with adjoint of KPP code.
94      (no success...)
95      Identical code works fine with TAF.
96    o Fixed verification/natl_box_adjoint experiments.
97      Initial conditions for Experiments 4 and 5 are now
98      set to "SEAICE_initialHEFF=0", which is more reasonable,
99      and hence gives results closer to that of Experiment 2.
100      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
101    
102    checkpoint53
103    o stable checkpoint with up to date adjoint
104      TLM tests only run for 1st grdchk at the moment. Its unclear if
105      this is a code problem or a problem with resetting code for g_
106      variables that is being autogenerated wrong.
107      Otherwise:
108       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
109       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
110         are both still in chaos following their security messes.
111    
112    checkpoint52n_post
113    o various build (mostly genmake2) changes including:
114      - ability to build/run more easily within Cygwin and MacOS X
115      - more complicated Makefiles with a stronger dependence on Gnu Make
116    o pkg/seaice modifications
117      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
118        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
119        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
120      - changed proxy for geostrophic velocity and updated
121        verification/lab_sea/results/* accordingly
122      - removed ADI dynamic solver from pkg/seaice
123      - replaced all occurrences of 1/CSTICE or 1/CSUICE
124        they caused a segmentation fault under certain circumstances
125      - removed unused field WATR
126    o bug fix in exf-package:
127      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
128         now reflect that.
129    o small fixes in the cal-package:
130      - set reference date to first of January for the 'model'-calendar
131      - failing of cal_CheckDate in cal_FullDate now actually results in a
132        warning
133    o small modifications in exf-package to increase flexibility:
134      - change climtempfreeze from a constant to a runtime parameter that
135        is specified in data.exf_clim (default = -1.9)
136      - introduce runtime parameter windstressmax (default = 2.0) that is
137        specified in data.exf
138    o fix in pkg/thsice:
139      - update Evap (Tsf changes) to be consistent with Latent heat flux
140      - maintain snow precipitation unchanged (even if Tsf >=0).
141     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
142    
143    checkpoint52m_post
144    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
145      this does not change any of the results, because myIter=0 in swfrac always
146      lead to jwtype=2 (the default anyway), but the call makes little sense
147      as a default
148    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
149    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
150      atmospheric model (AIM) to use it ; add a "slab ocean" component.
151    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
152    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
153    o extending useSingleCpuIO option to work with new exch2 I/O format
154      - old-style, missing-tile I/O is still accessible by defining CPP
155        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
156    o monitor package can write to NetCDF files and/or STDOUT
157    o fix re-definition bug in MNC_GRID_INIT_ALL()
158    o doc/api_reference added
159      - a framework for building an API Reference Manual using all
160        the "protex" comments embedded in the code
161      - see pkg/generic_advdiff, pkg/mnc for examples
162    o MNC:
163      - make myThid the last argument for all subroutines
164      - new default for the grid files: NO halos
165      - add useMNC and other run-time flags
166      - separate per-file-group handling of the unlimited dimension
167      - early initialization of MNC w/ flags read at the eeboot stage
168        and lookup tables set in initialize_fixed
169      - write all MNC output to a freshly-created directory
170    o thermodynamics sea-ice (thsice) is now tested with testreport.
171    o test exp. advect_cs: use the standard cs32 grid ; update output.
172    o Added functionality to grdchk:
173      pick global i,j,k position (or nearest wet) where to perform check.
174    
175    checkpoint52l_post
176    o new land formulation:
177      a) use ground enthalpy as prognostic variable to ensure exact
178         energy conservation.
179      b) account for water temperature and for latent heat of freezing
180         in all processes (rain, run-off, ground storage)
181      c) compute surface and ground temperature implicitly.
182    o aim_v23 modification for new land model:
183      a) Treat separately land / ocean / sea-ice surface fluxes
184         to allow implicit computation of land & sea-ice surface temp.
185      b) add snow precipitation.
186    checkpoint52l_pre
187    
188    o fix problem (when 1 tile is empty) in min/max monitor.
189    o fix bug in timeAve (u,vZetatave in common block)
190    o no restoring terms under ice for pkg/seaice
191    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
192    o bug fix for pkg/seaice pickups
193    o change MNC call locations and add coordinate attributes
194    o mask vorticity at the corner ; affects global_ocean.cs output
195    o fix ini_curvilinear_grid ; test CS experiments with mpi
196    o aim.5l_cs: modify sea-ice fraction input file ; update output
197    o exf: Adding simple range check routine for exf fields after read
198    
199    checkpoint52k_post
200    o removed top-level directory "diags"
201      - we migrated these functions to pkg/timeave a long time ago
202    o fixed bug introduced in pkg/monitor
203    o accuracy ctrlprec = 32 insuffient for gradient checks using
204      averaged fields (I/O via cost_averages)
205      -> use ctrl.h in active_file*.F to control I/O precision.
206    o paramter list of CALL ADTHE_MAIN_LOOP
207    o added initial do_the_model_io to ecco
208    o set all ...Freq to zero after cost_final
209      taveFreq, dumpFreq, pChkptFreq
210    o MAIN and ECCO differentiability restored
211    
212    checkpoint52j_post
213    o fix nchklev in tamc.h for global_ocean...
214    o Bringing flow and store directives up-to-date
215    o Really weird thing!
216      call do_the_model_io from the_main_loop with parameters
217      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
218      TAF places a faulty re-call of initialise_varia
219      after cost_final call which should not be there!
220    checkpoint52j_pre
221    
222    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
223      error messages
224    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
225    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
226      debug output
227    o modfied mdsio_writefield.F to handle non-global files under exch2
228    o update AIM Cubed-Sphere exp (aim.5l_cs):
229      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
230    o update AIM Equatorial Channel exp:
231      use standard aim_v23 pkg and change the SST fields to be more realistic.
232    o globalFile now works with exch2
233    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
234      mon_vort3.F to make exch2 friendly with >1 tile per cube face
235    o limit timeave output for hi-res integrations
236    
237    checkpoint52i_post
238    o removed CPP_EEOPTIONS.h from verification/*/code
239    o updated the tiling for global_ocean_pressure
240    checkpoint52i_pre
241    
242    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
243      the old pkg/aim).
244    
245    checkpoint52h_pre
246    o shortened offending lines in exch2_send_rx?.template
247    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
248    o genmake2: add build & execute test for NetCDF code
249    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
250      old grid files, moved CPP_EEMACROS.h to pkg/exch2
251    o added useSingleCPUIO flag to monitor.F and mon_out.F
252    o added temporary hack for sea-ice dynamics on the cube:
253      metric terms are ignored and it is assumed that
254      there is no sea-ice on cube faces 1, 2, 4, and 5.
255    
256    checkpoint52f_post
257    o added exch2 cube routines to pkg/exch2
258    o modified hs94.cs-32x32x5 to use it
259    o added new grid files to hs94.cs-32x32x5
260    checkpoint52f_pre
261    
262    checkpoint52e_post
263    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
264      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
265    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
266      to work with implicit vertical advection and AB ;
267    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
268    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
269     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
270    checkpoint52e_pre
271    
272    o fix bug in impldiff when Nr=1 or Nr=2.
273    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
274    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
275    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
276      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
277    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
278    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
279    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
280    
281    checkpoint52d_post
282    o re-tiled many expts to allow comparison in multi-processor mode
283      - updated output accordingly
284      - changed hs94.128x64x5 to use intial T from file rather than use the
285        random number generator
286    o add infrastructure in model routines for fizhi and gridalt packages
287    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
288    o changes to permit hi-res, cubed-sphere, configuration
289      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
290      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
291      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
292        of surface winds for the cube
293      (A verification experiment, based on global_ocean.cs32x15, but with
294       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
295       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
296       complete with example surface forcing files and matlab scripts to look
297       at the output and compare it with that of global_ocean.cs32x15.)
298    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
299       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
300       to conform to the common rule.
301    o check-in the first version of the coupler + interfaces for multi-components
302       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
303       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
304       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
305       - ocean and atmos. share the same horizontal grid (no interpolation).
306       - exchanges between component and coupler is done in forward_step
307    o new verification experiment, cpl_aim+ocn:
308       coupled ocean - AIM atmosphere on cs32 grid.
309    
310    checkpoint52d_pre
311    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
312    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
313    
314    checkpoint52c_post
315    o Fixing OPTIONS files for use of exf:
316      - ALLOW_ECCO not needed
317      - ECCO_CPPOPTIONS.h should not be included from
318        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
319        as has been the case in the past
320      - All cal/exf related options are currently set in
321        single header file. Should remain so until we
322        agree on a consistent new policy.
323    o Removed all CPP options for cal package.
324      cal has no more CPP options.
325    o modified STOREs in GAD_ADVECTION
326    o corrected key comp. for passkey
327    
328    checkpoint52b_post
329    o new version: "thsice" of thermodynamic sea-ice pkg:
330     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
331     - modify fluxes but do not change theta directly;
332     - light cleaning of bulk_force pkg (still needed with thsice).
333     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
334       + output_thsice.txt to test thsice & bulk_force pkgs.
335    o put back grid & coriolis monitor output.
336    checkpoint52b_pre
337    
338    o call "do_the_model_io" at the beginning (=> dump initial state)
339    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
340    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
341      (need info on NUMBER_OF_PTRACERS)
342    o missing PTRACERS headers in some routines
343    o default tamc.h in pkg/autodiff supposed to crash
344      to ensure proper customization
345    
346    checkpoint52a_post
347    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
348      - moved surfaceTendencyTice from pkg/seaice to main code
349      - subroutine FREEZE_SURFACE now limits only surface temperature
350        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
351        => new output.txt for global_ocean.cs32x15 & global_with_exf
352      - keep the old version of FREEZE for backward compatibility;
353        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
354      - corresponding modifs for TAF directives
355    o added surface flux output variables to TIMEAVE_STATVARS
356    o time-averaged output for pkg/ptracers
357    o fix problem with ECCO-related divided adjoint
358      snapshot file was missing some ad-variables,
359      but no warning issued by TAF
360    
361    checkpoint52a_pre
362    o some bug fixes for #undef REAL4_IS_SLOW
363    
364    checkpoint52 = ecco_c52_e35
365    o after testing adjoints of checkpoint51u_post
366    
367    checkpoint51u_post
368    o this is the post-merge tag of the ecco-branch
369      (needs another clean checkout and re-testing)
370    o various natl_box_adjoint configs and results
371      but no input fields
372    o obcs adjoint not yet merged!
373    o adding ECCO global 1x1 and 2x2 degree configs
374    o updated/extended some store directives for seaice
375    o pkg/ecco now containes ecco-specific part of cost function
376    o top level routines the_main_loop, forward_step
377      supersede those in model/src/
378      previous input data.cost now in data.ecco
379      (new namelist ecco_cost_nml)
380    o in ctrl/ cleaned some cross-dependencies and updated CPP options
381    
382    checkpoint51t_post
383    o this is the pre-merge tag of the ecco-branch
384    
385    checkpoint51s_post
386    o cleanup: removed various obsolete #define-s
387    o pkg/grdchk
388      - renamed 'ph-grd 3' to 'grad-res'
389      - merged from ecco-branch
390        (remaining bug fixes for obcs gradient checks)
391      - additional high-precision output for testreport
392        (grep for 'precision_grdchk_result')
393    
394    checkpoint51r_post
395    o cleaned up or removed CPP_OPTIONS.h files
396    o updated results for some of the tests to reflect the new
397      optfiles (-ieee: -O0 instead of -O3)
398    
399    checkpoint51q_post
400    o cd_code:
401      - moved cd_scheme.F -> cd_code_scheme.F
402      - separate read_checkpoint from cd_code_ini_vars.F
403      - separated cd_code part from write_checkpoint
404      - updated AD_SOURCE, generated .flow
405      - added CD_CODE_VARS.h to the_main_loop
406      - Moving cd_code specific store dir.s to pkg/cd_code
407    o ctrl package totally restructured
408      - pack/unpack now optional and decoupled from
409        xx_/adxx_ I/O
410      - ctrl_pack/unpack cleaned
411        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
412      - confined inclusion of AD_CONFIG.h to where necessary.
413    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
414    
415    checkpoint51p_post
416    o create initial cd_code package
417      - WARNING: the initialization of fields within packages
418        is broken because INI_FIELDS (where READ_CHECKPOINT is
419        called) is called *before* PACKAGES_INIT_VARIABLES.
420        This seems to be backwards since
421        1) its important to initially zero the entire field including
422           the "halo" region
423        2) zeroing needs to be done *before* reading pickup info
424           and the pickup call might or might not happen in any
425           particular run
426      - this needs an overhaul for R2
427    o cleanup verification/*/code/GMREDI_OPTIONS.h
428    o cleanup testreport
429    
430    checkpoint51o_post
431    o bringing AD-related verif's up to date with genmake2
432      - carbon/
433      - global_ocean.90x40x15/
434      - hs.94.1x64x5/
435      - (front_relax/ )
436    o (more) consistent directory structure for AD-related verif.'s
437    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
438    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
439    o bug fix in find_alpha.F for MDJWF:
440      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
441        change rho -> rho-rhoConst
442      - replace call find_rho to find_rhonum
443    o initialisation of rFlx extended to full array (required by TAF)
444      and shifted to thermodynamics
445    o removed PTRACERS.h in ptracers routine
446    o added surfacetendencyPtr to S/R parameter list pracers_forcing
447    o Correcting initialisations for fVerU, fVerV.
448    o helping TAF to recognize dependency on kUp for
449      fVerU, fVerV
450    o Replacing delZ by delR in pkg/ctrl/
451    checkpoint51o_pre
452    
453    o undid all of cp51 pending some cleanups and discussion
454    o added the [#include "AD_CONFIG.h"] statement to all files that need
455       it for adjoint/tl #defines
456     o re-worked the build logic in genmake2 to support AD_CONFIG.h
457     o removed tools/genmake since it no longer works
458    
459    checkpoint51n_post
460    o modifications to make FREEZE flux visible to pkg/kpp
461      - moved surfaceTendencyTice from pkg/seaice to main code
462      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
463      - subroutine FREEZE now limits only surface temperature
464        (this means new output.txt for global_ocean.90x40x15,
465         global_ocean.cs32x15, and global_with_exf)
466    o added surface flux output variables to TIMEAVE_STATVARS
467    
468    checkpoint51n_pre
469    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
470    o added [#include "AD_CONFIG.h"] to all files that use the following
471      defines:
472      - ALLOW_ADJOINT_RUN
473      - ALLOW_TANGENTLINEAR_RUN
474      - ALLOW_ECCO_OPTIMIZATION
475    
476    checkpoint51m_post
477    o incorporating changes to get TAMC/TAF working in genmake2
478      - added new TAMC/TAF targets to the Makefile
479      - various cleanups related to package handling
480      - these changes should have no impact on the forward model
481    
482    checkpoint51l_post
483    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
484     - faster algorithm for cal_addtime.F
485     - higher precision arithmetic, where needed
486     - pkg/exf *startdate variables changed from calendar date to
487       model integration time
488    
489    checkpoint51l_pre
490    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
491    o enable to apply restoring on S & T only in a latitude band.
492    o update output (external_forcing_surf modif. change truncation errors)
493       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
494    
495    checkpoint51k_post
496    o change default to: useNHMTerms=.FALSE.
497     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
498       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
499     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
500        exp1, ideal_2D_oce
501     - change data file of oceanic exp (leave the results unchanged for now)
502       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
503    o set gravitySign automatically according to the vertical coordinate used
504      (and change sign: back to "logical" value: +1 when R increases downward)
505    o added an include barrier to the default CPP_OPTIONS.h and
506      removed the #include "PACKAGES_CONFIG.h" from it
507    o fix a bug in mom_fluxform (from chk51j_post)
508    
509    checkpoint51j_post
510    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
511    o adjusted some flow directives (dynamics, thermodynamics)
512    o added cubed-sphere case to test cost function
513    o heckpoint_lev?_directives.h now include
514      pkg-specific directives, whenever those are enabled.
515    o Moving pkg-specific flow directives to corresponding pkg
516      Moving pkg-specific differentiation list to corresponding pkg
517      Moving pkg-specific checkpoint-lev storing to corresponding pkg
518      ---> conventions are
519           - pkg_ad.flow
520           - pkg_ad_diff.list
521           - pkg_ad_check_lev?_dir.h
522    
523    checkpoint51i_post
524    o merge of the branch-genmake2
525      - knowingly breaks the older genmake
526      - automatic generation of all ALLOW_${PKG_NAME} defines
527      - new testreport supersedes older testscript
528    o large number of package inclusion and header cleanups
529    checkpoint51i_pre
530    
531    o new output for adjoin of global ocean vector invariant
532    o fix for checkpoint of thermodynamic seaice and bulk_force
533    o Steph gchem various cleanups
534    
535    checkpoint 51h_pre
536    o fixed some single quotes
537    o modify gchem pkg to be more versatile
538    o modifications to clean up dic pkg
539    o add pkg/cfc
540    
541    checkpoint51g_post
542    o provide links for ARPACK and ADM*TLM
543    o start removing verification/vero/
544    o update AD-related stuff
545      (in particular some IF-statements in model/src/ routines)
546    o adding to verification/global_ocean.90x40x15/ adjoint of
547      vector invariant setup
548    
549    checkpoint51f_post
550    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
551    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
552      of tracer Green's fucntions for ocean inversion project.
553    
554    checkpoint51f_pre
555    o Added on-the-fly spatial interpolation capability
556        "USE_EXF_INTERPOLATION" to pkg/exf.
557      - This is a temporary Cartesian-grid hack until
558        the super-duper ESMF coupler becomes available.
559      - See verification/global_with_exf/README for usage example.
560      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
561        flags and modified pkg/seaice accordingly.
562    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
563        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
564        non-local transport term.
565    
566    checkpoint51e_post
567    o pkg/mom_vecinv:
568      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
569      - add time-ave diagnostic of vorticity advection.
570    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
571    o atmospheric geopotential: - include water vapor effect;
572                                - use p^kappa in p* scaling.
573    o land pkg: read initial state from files.
574    o AIM : add stratospheric drag in the upper level
575    
576    checkpoint51d_post
577    o change function ILNBLNK (=> last non-blank char.) to return zero
578      (instead of the string length) when the string. char is empty
579    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
580    o modif's to restore TAMC compatibility
581      - avoid "_d" constructs in PARAMETER declarations
582      - avoid interrupting lines by comment lines
583    o Use cluster local disks for purely local I/O
584      vs. globally visible disks needed for ctrl stuff
585      (merged from ecco-branch)
586      - new active_file_loc... and mdsio_..._loc routines
587      - affected packages: autodiff, ctrl, grdchk, mdsio
588    
589    checkpoint51c_post
590    o introducing integer flag debugLevel
591      - debLevZero: suppress all output
592      - debLevA: standard
593      - debLevB: equivalent to current debugMode=.TRUE.
594    o introducing pathname variable mdsioLocalDir for mdsio
595      that can be specified at runtime
596      (relevant for cluster I/O to local disk)
597    `
598    >>>checkpoint51b_post
599    adjoint of ptracers
600    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
601    o extended state in checkpoint_lev?, etc.
602    o alternative ctrl/cost with tr1 or ptracer
603    o new comlev1_bibj_ptracers
604    o new ptracers.flow
605    o made ptracers_forcing same as external_forcing_s
606    o added verification for adjoint with ptracers
607      - adm. grdchk fail so far
608      - tlm. grdchk OK
609      - checked tapelev/comlev recomputations: OK
610    <<<checkpoint51b_pre
611    
612    checkpoint51a_post
613    o added code for biogeochemistry package
614      - new pkgs: dic, gchem
615      - new subroutine in ptracers
616    o modify code for biogeo packages
617      - in model/src and pkg/ptracers
618    
619    checkpoint51
620    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
621      - autodiff, ctrl, exf, grdchk, seaice
622      kept separate packages
623      - cost, ecco, obcs
624    o updating verification/internal_wave, verification/lab_sea
625      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
626    
627    checkpoint50i_post
628    o Preparing next differentiable checkpoint and sync
629      of MAIN vs. ecco-branch
630      - 1st step: this one is differentiable
631      - 2nd step: next(! not this) checkpoint will have updated packages
632                  from ecco-branch)
633    
634    checkpoint50h_post
635    o new package "land": provide surface BC for AIM.
636    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
637    o AIM: use true log-P extrapolation for near surface temp (= as in
638        F.Molteni paper) ; update aim.5l_cs output.
639    o New variable in PARM03 for more flexible pickups
640    o somewhat cleaned package initialisation sequence for
641      ctrl/ cost/ ecco/ in packages_... routines
642    
643    checkpoint50g_post
644    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
645      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
646      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
647        made the default because of faster convergence than ADI
648    
649    checkpoint50f_post
650    o exf totally restructured
651      - replaced all exf_set_ routines by one generic exf_set_gen.F
652        and made sure it's still differentiable
653      - split exf_getffields.F into new exf_bulkformulae.F
654      - exf_inscal_/exf_outscal_ suffixes consistent with field names
655      - updated adjoint/makefile and relevant verif. accordingly
656    
657    checkpoint50f_pre
658     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
659          + change Evap over land. (update aim.5l_cs output)
660     o added missing .cvsignores and made uniform across expts
661     o changed configuration of tidal_basin_2d expt
662     o added pkg/debug functions for tracing code in fatal crashes
663     o tidied pkg/monitor to use MONITOR_OPTIONS.h
664     o new fn in pkg/monitor to stop model if solution grows too big
665     o removed lots of single quotes from comments
666    
667    checkpoint50e_post
668    o make KPP work with PTRACERS
669     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
670       nearly a copy of kpp_transport_s
671     - there is no analogue to SurfaceTendencyS, so I have to use
672       gPtr(of the surface layer) instead
673    o add a new platform SunFire+mpi (SunFire 15000) to genmake
674    checkpoint50e_pre
675    
676    checkpoint50d_post
677    o change kpp output from multiple-record state files to single-record state
678      files analogous to write_state.F
679    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
680      analogous to the cg2d-related output.
681    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
682      so that writing to internal file fn (with length 512) fails.
683    checkpoint50d_pre
684    
685    checkpoint50c_post
686    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
687    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
688    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
689    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
690    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
691    
692    checkpoint50c_pre
693    Merging from release1_p13:
694    o bug fix for pkg/seaice dynamic solver
695    o Added SEAICE_initialHEFF to pkg/seaice
696    
697    checkpoint50b_post
698    o store u*,v* in gU,V instead of in guNm1,gvNm1
699    o in order to put the momForcing out of the Adams-Bashforth:
700      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
701      to timestep.F
702    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
703    o re-generate output for highly sensitive test-exp:
704       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
705    
706    checkpoint50b_pre
707    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
708    o corrected CPP option mismatch in exf_Bulk... functions for case
709      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
710    
711    checkpoint50a_post
712    o Bug fix for merging between c50 and KPP.
713      ikey was passed from thermodynamics to kpp_calc via
714      common block rather than being recomputed in kpp_calc,
715      in contradiction with new key itdkey.
716      New key ikppkey created, and tamc.h headers updated.
717    
718    checkpoint50
719    - 2nd step of merge with ecco-branch:
720      merge changes in ecco-branch back into main trunk
721    - bug fix in find_alpha
722    - more storing in gmredi_calc_tensor.F, kpp_routines.F
723    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
724    - merged some sliced AD support routines
725    
726    checkpoint49
727    merged from ecco-branch:
728    o exf:
729      - Enable initialisation of forcing fields to constant
730        (runtime) values.
731      - in exf_getffields.F
732        Reduce i-/j-loop to interior domain, discarding overlaps.
733        That also fixes wrong TAF-key computations for key_1, key_2
734        with bulf formulae.
735      - exf_init.F modify #ifdef for exf_init_evap
736      - exf_getffieldrec.F, ctrl_getrec.F
737        The following INT-usages are not safe:
738          fldsecs  = int(fldsecs/fldperiod)*fldperiod
739          fldcount = int(fldsecs/fldperiod) + 1
740        and were modified.
741    o autodiff: checkpoint_lev...
742      - updated storing for bulk formulae (some arrays were missing)
743      - added state for seaice package
744      - synchronized with main branch
745    o DIVA:
746      Modif.s in
747      - the_main_loop.F
748      - the_model_main.F
749      and added cost_final_restore.F cost_final_store.F
750      o With these changes, it is possible to fully separate
751        the first forward run to compute the cost function (mdthe_main_loop)
752        and adjoint runs over individual DIVA intervals (adthe_main_loop)
753        into separate model executions.
754        This enables better tuning of DIVA to given queue sizes.
755      o Loss of cost function value in consecutive DIVA runs is
756        fixed by storing to 'costfinal' file.
757      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
758        beginning/end of adjoint integration is accounted for.
759      The current changes apply to TAF-1.4.26.
760      TAF has one remaining bug, requiring one manual change
761      (see MITgcm manual).
762    o cal: synchronized between MAIN and ecco-branch
763    
764    checkpoint48i_post
765    o Changes to restore differentiability of code w.r.t. previous tag
766      (mostly adding new routines to make list and replacing
767      pressure by totPhiHyd).
768    o Updated and merged grdchk package
769      - has both ADM and TLM checks
770      - works for single- and multi-proc.
771      - output cleaned
772      - worked successfully for parallel DIVA
773    o genmake:
774      - Adding -platform=SP4
775      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
776    o Modif. for DIVA:
777      ctrl_unpack should not be called in intermediate DIVA interval.
778      (similar thing would apply for active files such as
779      tbar, sbar, psbar, which should not be reinitialised;
780      only relevant for ecco-branch)
781    
782    checkpoint48h_post
783    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
784    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
785    o Added SEAICE_initialHEFF to pkg/seaice
786    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
787    
788    checkpoint48g_post
789    --- EOS:
790    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
791      store total Potential in totPhyHyd for diagnostics & EOS.
792    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
793    --- Pressure/geopotential gradient:
794    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
795    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
796      ( changes results of global_ocean_pressure )
797    o NLFS + z-coord.: add eta*Rho' contribution.
798    o accurate phiHyd when using interface-W at the middle between 2 centers
799     ( changes results of ideal_2D_oce )
800    o includes r* 2nd term in potential gradient.
801    
802    checkpoint48f_post
803    Merging from release1_p12:
804    o Modifications for using pkg/exf with pkg/seaice
805      - improved description of the various forcing configurations
806      - added basic radiation bulk formulae to pkg/exf
807      - units/sign fix for evap computation in exf_getffields.F
808      - updated verification/global_with_exf/results/output.txt
809    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
810      (SBO) core products, including oceanic mass, center-of-mass,
811      angular, and bottom pressure (see pkg/sbo/README.sbo).
812    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
813      to avoid negative values in shallow regions.
814      - updated verification/natl_box/results/output.txt
815      - updated verification/lab_sea/results/output.txt
816    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
817    o Added useSingleCpuIO option (see PARAMS.h).
818    o Updated useSingleCpuIO option in mdsio_writefield.F to
819      work with multi-field files, e.g., for single-file pickup.
820    o pkg/seaice:
821      - bug fix in growth.F: QNET for no shortwave case
822      - added HeffFile for specifying initial sea-ice thickness
823      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
824    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
825      kpp_transport_t.F, forward_step.F, and the_main_loop.F
826    o pkg/seaice:
827      - adjoint-friendly modifications
828      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
829    
830    checkpoint48e_post
831    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
832    o dynamics: change definition of computational domain & adapt mom_fluxform
833      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
834    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
835        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
836        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
837        global_ocean.90x40x15 global_with_exf global_ocean_pressure
838        inverted_barometer solid-body.cs-32x32x1
839      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
840    
841    checkpoint48d_post
842    o in preparation for r*:
843     a) use pre-computed gradient of hydrostatic potential:
844        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
845     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
846        => affects results of glob_oce_pressure (different truncation error)  
847      update output.txt of ideal_2D_oce & global_ocean_pressure
848    
849    checkpoint48d_pre
850    o in preparation for r*:
851      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
852      pass the 2 comp. of the grad. as arguments to momentum S/R.
853      but for the moment, only used if it does not change the results.
854    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
855    
856    checkpoint48c_post
857    Modifications in treatment of initial flux forcing controls
858    to avoid extra storing of flux fields.
859    
860    checkpoint48c_pre
861    o Added tidal_basin_2d experiment (currently 1D!)
862    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
863    
864    checkpoint48b_post
865    o r* coordinate added in #ifdef NONLIN_FRSURF block.
866     (modification to pressure gradient not yet implemented)
867    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
868      (for U & V) that are used for vertical advection of momentum.
869    
870    checkpoint48a_post
871    o In preparation for r*, use temp. array to compute vertical transport
872       in flux-form momentum pkg. => change results of few test-exp.
873      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
874                        lab_sea, natl_box & plume_on_slope
875    
876    checkpoint48
877    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
878    
879    checkpoint47j_post
880    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
881    o moved adexch from forward_step to addummy_in_stepping
882    o added exch in ctrl_map_...
883    o aveFreq.=0. at end of cost_final to avoid overwrite in
884      reverse checkpointing loop
885    o Yet more changes in gmredi:
886      * adgmredi_calc_tensor
887        avoiding all recomputation of gmredi_slope_limit
888      * adgmredi_x/y/rtransport
889        added flag for excessive storing to avoid recomp. of
890        u/v/rtans, dTdx/y/z
891        -> this is not really necessary and very memory-consuming
892      * adgmredi_slope_psi:
893        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
894      * gmredi_slope_limit
895        re-activated full calculation of taperfct for case 'ac02'
896    o updating verification/ adjoints of carbon, global_ocean.90x40x15
897    
898    checkpoint47i_post
899    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
900    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
901      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
902    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
903    o gmredi: fix few bugs.
904    
905    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
906    This will be a good checkpoint to plug into the ecco-branch.
907    o few modif.'s to get latest version adjointed
908      (mainly kick out code in ini_linear_phisurf)
909    o modif's to run adjoint with exactConserv
910    o case GM_BOLUS_ADVEC should be cleaned
911      S/R gmredi_slope_psi should be cleaned
912    o verification/carbon now has exactConserv=.TRUE.
913    
914    checkpoint47g_post
915    o time-average AIM output: becomes independent from statvars time-average
916      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
917    o After TAF bug fix:
918      Tested adjoint of gmredi package.
919      Tests were done with checkpoint47 rather than with latest
920      checkpoint47f_post since the latter is broken for the adjoint
921      verification/carbon/ contains both ADM and TLM gradient checks.
922    Here they are, before they get changed/lost/stolen.
923    Mostly modif.'s to fix numerical sensitivities.
924    Gradient checks OK for
925    - GM_taper_scheme:
926      * clipping
927      * ac02
928      * linear
929      * glw91
930      * dm95
931      * ldd97
932    - GMREDI_OPTIONS:
933      * GM_VISBECK_VARIABLE_K
934      * GM_NON_UNITY_DIAGONAL
935      * GM_EXTRA_DIAGONAL
936      * GM_BOLUS_ADVEC
937    in conjunction with data.gmredi parameters to be checked in
938    in a few minutes under verification/carbon/code/
939    
940    checkpoint47f_post
941    Merging from release1_p10:
942    o modifications for using pkg/exf with pkg/seaice
943      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
944        and SEAICE_EXTERNAL_FLUXES
945      - pkg/exf CPP options EXF_READ_EVAP and
946        EXF_NO_BULK_COMPUTATIONS
947      - usage examples are Experiments 8 and 9 in
948        verification/lab_sea/README
949      - verification/lab_sea default experiment now uses
950        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
951    
952    checkpoint47e_post
953    o created a tag prior to creating a branch
954    
955    checkpoint47d_post
956    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
957      at the bottom boundary had an erroneous half slip boundary condition
958    o added bottom drag and no slip boundary condition capabilities to
959      oceanic pressure coordinates code
960    o added new verification experiment global_ocean_pressure, this experiment is
961      also described in the tutorial section of the manual
962    checkpoint47d_pre
963    
964    checkpoint47c_post
965    o Added a verification experiment for a global cubed-sphere ocean run
966      -  verification/global_ocean.cubed32x32x30
967      -  uses pkg/therm_seaice and pkg/bulk_forcing
968    
969    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
970    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
971      when using P-coordinate; only implemented for atmospheric config.
972    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
973      NOTES: requires option NONLIN_FRSURF to be "#define".
974    o update advect_xz/results/output.txt (left from checkpoint44g_post)
975    
976    checkpoint47b_post
977    Merging from release1_p9:
978    o pkg/seaice
979      - removed GOTO's and added taf directives
980      - double precision constants to reduce the g77 (Linux)
981        to F77 (SGI) differences reported in release1_p8
982    o tools/genmake
983      - added SGI options
984    o verification/testscript
985      - updated to that of checkpoint47a_post
986    o verification/global_ocean.90x40x15/input/eedata
987      - modified for SGI f77 compatibility
988    o verification/lab_sea
989      - added description of sea-ice model
990      - added missing matlab routines
991      - added test of thermodynamics parallelization
992    
993    checkpoint47a_post
994    o new pkg: aim_v23
995     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
996       for now, keep the same surface forcing as before.
997     - Part-Cell implemented into AIM; check that Heat & Water are conserved
998     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
999     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1000    o add diagnostic of surface correction term in monitor output
1001    
1002    o bulk_force and therm_seaice
1003    - Two packages:  bulk_force (Bulk forcing)
1004      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1005    - Earlier integration from Stephaine Dutkiewicz
1006      and Patrick Heimbach.
1007    - Two ifdef statements for compile time,
1008       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1009    
1010    checkpoint47
1011    differentiable version of checkpoint46n_post
1012    o bug fix in quasihydrostaticterms
1013    o * "clean" adjoint code (in terms of extensive recomputations)
1014        can now be obtained for all GMREDI options (i.e. for
1015        - GM_VISBECK_VARIABLE_K
1016        - GM_NON_UNITY_DIAGONAL
1017        - GM_EXTRA_DIAGONAL
1018        - GM_BOLUS_ADVEC )
1019      * However, wrong gradient check problem remains unsolved.
1020      * New CPP options have been introduced for different
1021        tapering schemes
1022    o external_fields_load now part of differentiation list
1023    o pressure needs multiple storing;
1024      would be nice to have store_pressure at beginning or
1025      end of forward_step, e.g. by having phiHyd global (5-dim.)
1026      (NB: pressure is needed for certain cases in find_rho,
1027      which is also invoked through convective_adjustment).
1028    o recomputations in find_rho for cases
1029     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1030    o #define ATMOSPHERIC_LOADING should be differentiable
1031    o ini_forcing shifted to begining of initialise_varia
1032    o Incorporating QNVS line search routines into MITgcm
1033      (this is separate code, and therefore not under pkg)
1034      lsopt/, optim/
1035    o Updated verification/carbon/
1036      - #define GM_VISBECK_VARIABLE_K
1037      - GM_taper_scheme    = 'ldd97'    
1038    
1039    checkpoint46n_post
1040    Merging from release1_p8:
1041    o verification/natl_box:
1042      updating new external_fields_load routine
1043    o New package: pkg/seaice
1044      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1045      The sea-ice code is based on Hibler (1979-1980).
1046      Two sea-ice dynamic solvers, ADI and LSR, are included.
1047      In addition to computing prognostic sea-ice variables and diagnosing
1048      the forcing/external data fields that drive the ocean model,
1049      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1050      The implied surface heat flux is then stored in variable
1051      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1052      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1053      non-local transport term.  Because this call precedes model
1054      thermodynamics, temperature under sea-ice may not be "exactly" at
1055      the freezing point by the time theta is dumped or time-averaged.
1056      N.B.: fairly large differences in accuracy occur across
1057            different platforms/compilers; comparison between
1058            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1059            generated output gives:
1060       T           S           U           V
1061      C D M    c        m  s        m  s        m  s        m  s
1062      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1063      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1064      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1065    
1066      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1067    o GAD:
1068      - generated new common blocks to account for call of
1069        same gad routines with differing traceridentities
1070        (needed to modify tracerIdentity indices in GAD.h)
1071      - generated separate common blocks for case useCubedSphereExchange
1072        (Department of Futurology)
1073      - parameter lists to gmredi_?transport: added tracerIdentity
1074      - added new key indices to tamc.h
1075    o external_fields_load:
1076      - added this routine to TAF list
1077      - needed to make some common blocks global and additional storing
1078        along the same lines as exf package (checkpoint_lev?_directives.h)
1079    o exf:
1080      updated external forcing package
1081      - bug fixes carried over from ecco-branch
1082        (missing OBCS_OPTIONS.h in two routines)
1083      - enable easy to use "no forcing".
1084      - added exf I/O for atmospheric loading
1085      - added exf I/O for runoff data
1086      - transfered scaling between exf <-> MITgcm to exf namelist
1087    o Adding new verification experiment global_with_exf.
1088      This verification experiment is almost identical to the
1089      global_ocean.90x40x15 experiment, except that it uses
1090      the exf (and cal) package instead of the
1091      external_fields_load routine (cf README file).
1092    
1093    checkpoint46m_post
1094    o modified testscript to return -- when there are no lines of "%MON" output
1095    o added new flag "quasiHydrostatic" for QH mode
1096      and new routine quasihydrostaticterms()
1097    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1098      New routine: mom_u_coriolis_nh()
1099    o fixed sign of non-hydrostatic metric terms in u and v equations.
1100      Depend on correct sign of gravitySign.
1101    o added work.pc* to .cvsignore in aim directories using ifc
1102    o introduced flag for controllin non-hydrostatic metric terms
1103    o removed gravitySign from PARM04
1104    o switched to g77/ifc from pgf77 in aim experiments
1105    
1106    checkpoint46l_post
1107    o made convective adjustment work with pressure coordinates:
1108     - changed the direction of k-loop in convective_adjustment.F for the
1109       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1110     - adjusted the reference pressure k-index in convective_adjustment.F
1111     - adjusted the convection condition in convect.F (in analogy to
1112       calc_ivdc.F)
1113     - convective_adjustment no longer computes anything on the halos
1114     - removed the warnings about negative salinity from find_rho.F and
1115       find_alpha.F; instead the new routine look_for_neg_salinity, called
1116       at the beginning of find_rho, find_alpha, and find_beta, does a
1117       check of the entire slice, if CPP-option
1118       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1119    checkpoint46l_pre
1120    
1121    checkpoint46k_post
1122    o fixed the verification/global_ocean.90x40x15 experiment:
1123     - new bathymetry (the world according to A., JMC, and M.)
1124     - new initial fields and forcing fields (*.bin files)
1125     - new POLY3.COEFFS (for the next release one should switch to a full
1126       equation of state: JMD95P or MDJWF)
1127     - fixed several errors and redundancies in the data file
1128     - experiment uses looped cells
1129     - added matlab directory with diagnostic scripts for plotting of output
1130    
1131    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1132     - read AIM physics parameters from a file (data.aimphys)
1133     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1134    
1135    checkpoint46j_post
1136    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1137    o move wVel computation at the end of the time step, in S/R integr_continuity
1138    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1139    o update timeave pkg for wVel diagnostic.
1140    checkpoint46j_pre
1141    
1142    checkpoint46i_post
1143    o Clean up AIM package (and keep the results unchanged):
1144      include CPP_OPTION and use IMPLICT NONE in all routines ;
1145      declare all the variables _RL ; use _d 0 for all numerical constants.
1146      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1147    
1148    checkpoint46h_post
1149    o cleaned up the use of rhoNil and rhoConst.
1150      - rhoNil should only appear in the LINEAR equation of state, everywhere
1151        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1152        and the dynamical equations are all divided by rhoConst
1153    o introduced new parameter rhoConstFresh, a reference density of fresh
1154      water, to remove the fresh water flux's dependence on rhoNil. The default
1155      value is 999.8 kg/m^3
1156    o cleanup up external_forcing.F and external_forcing_surf.F
1157      - can now be used by both OCEANIC and OCEANICP
1158    checkpoint46h_pre
1159    
1160     Added code to convert surface volume flux (fresh water) into
1161     a mass flux when using P coordinates in the ocean (OCEANICP).
1162     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1163    
1164    checkpoint46g_post
1165    o Include a new diagnostic variable phiHydLow for the ocean model
1166      - in z-coordinates, it is the bottom pressure anomaly
1167      - in p-coordinates, it is the sea surface elevation
1168      - in both cases, these variable have global drift, reflecting the mass
1169        drift in z-coordinates and the volume drift in p-coordinates
1170      - included time averaging for phiHydLow, be aware of the drift!
1171    o depth-dependent computation of Bo_surf for pressure coordinates
1172      in the ocean (buoyancyRelation='OCEANICP')
1173      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1174        Theta, Salinity, and Pressure in the parameter list. This routine is
1175        presently contained in find_rho.F. This routine does not give the
1176        correct density for 'POLY3', which would be a z-dependent reference
1177        density.
1178    o cleaned up find_rho
1179      - removed obsolete 'eqn' from the parameter list.
1180    o added two new verification experiments: gop and goz
1181      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1182    checkpoint46g_pre
1183    
1184    checkpoint46f_post
1185    o Enable tangent linear (forward mode) gradient checks:
1186      - extended active file handling to g_... files
1187      - added TANGENT_SIMULATION to theSimulationMode
1188      - extended grdchk package accordingly
1189    o added tangent linear setup in verification/carbon/code_ftl
1190    o added adjoint setup in verification/front_relax/code_ad
1191    
1192    checkpoint46e_post
1193    o Added new equation of state -> MDJWF
1194      - EOS of McDougall et al., 2002, JAOT, submitted
1195      - caveat: the equation of state is only valid for a smaller (more
1196        realistic?) range of values than JMD95P/Z and UNESCO
1197      - added masks to the calculation of pressure in store_pressure
1198      - added more check values for density in check_eos (ini_eos.F), some of
1199        the old check values are out of the range of the MDJWF-eos, so don't
1200        expect perfect matches for those
1201    checkpoint46e_pre
1202    
1203    checkpoint46d_post
1204    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1205      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1206      case of pressure coordinates. eosType='JMD95Z' in
1207      combination with buoyancyRelation='OCEANICP' now causes an error.
1208    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1209      in find_alpha/beta.
1210    checkpoint46d_pre
1211    
1212    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1213      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1214    
1215    checkpoint46c_post
1216    o Changes necessary for ocean in p-coordinates
1217     -  Added new buoyancy relation = 'OCEANICP'
1218     -  Added new parameters = gravitySign (this used to be contained inside
1219        the factor dRdZ which I added when we first switched to R coordinates).
1220     X GM/Redi is not compatible (yet)
1221     X bottom drag and no-slip need to be debugged.
1222    checkpoint46c_pre
1223    
1224    checkpoint46b_post
1225    o Added new equation of state -> JMD95Z and JMD95P
1226      - EOS of Jackett and McDougall, 1995, JAOT
1227      - moved all EOS parameters into EOS.h
1228      - new routines ini_eos.F, store_pressure.F
1229    o Added UNESCO EOS, but not recommended because it requires
1230      in-situ temperature (see JMD95)
1231    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1232      unesco.f to be used with POLY3
1233    checkpoint46b_pre
1234    
1235    checkpoint46a_post
1236    o Added (atmospheric) pressure loading
1237      - new field in FFIELDS.h, etc...
1238      - new cpp flag ATMOSPHERIC_LOADING
1239    o Changed hFacC to _hFacC in calc_phi_hyd.F
1240    o Added SHORTWAVE_HEATING to some files for consistency
1241    checkpoint46a_pre
1242    
1243    checkpoint46
1244    further merges from release1_p5
1245    o new ctrl package
1246      - adopted from ECCO environment to enable optimization
1247      - added Eliassen Palm fluxes to controls
1248    o added Eliassen Palm flux controls to gradient check package
1249    o cost package
1250      - Compatible with new ctrl package
1251      - added Eliassen Palm cost hooks
1252      - modif's of existing cost functions
1253    o Adjoint-related bug fixes in kpp:
1254      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1255      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1256    o autodiff package
1257      - flow directives:
1258        + new for S/R do_the_model_io
1259        + enhanced for S/R checkpoint
1260        + new gmredi.flow
1261      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1262        disable adcommon.h/g_common.h by default.
1263      - fixed problem for adjoint of global_max
1264    o modified verification/carbon/
1265    o New setup for adjoint of global_ocean
1266    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1267    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1268    o incorporated hooks for sponge layer code (external_forcing.F)
1269    
1270    checkpoint45d_post
1271    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1272    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1273      (affects plume_on_slope "cg2d" output)
1274    o add new parameter deltaTfreesurf for free-surface time stepping
1275    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1276    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1277    o change phiMin in exp1 (to agree with documentation)
1278    o add new flags:
1279     - T,S forcing inside/outside Adams-Bashforth
1280     - turn off temp,salt advection and/or forcing
1281     - for each tracer, define internal flag for multiDimAdvection & A-B
1282    o monitor: change definition of KE to check conservation of Energy
1283    
1284    checkpoint45c_post
1285    o Removed f90 comments ("!")
1286    o Modified initialisations to enable exf package for MITgcm
1287      (without invoking ECCO_PACKAGE).
1288    o modifications to gradient check package (Martin Losch)
1289      - enable centered differences
1290      - modified format of standard output
1291    
1292    checkpoint45b_post
1293    o cleaned exchange calls in cg2d
1294    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1295    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1296      to configure barotropic setup (Martin Losch)
1297    o moved some initialisations within bi,bj loop in dynamics
1298      (TAF flow dependency)
1299    o in initialise_varia, moved call packages_init_variables
1300      before convective_adjustment_init
1301      (corresponding adjustment of TAF tape initialisation).
1302    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1303    
1304    checkpoint45a_post
1305    o compute Rho over the whole domain (extend iMin,jMin indices)
1306    o specific exchange for X-slice domain (case Ny=1)
1307    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1308    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1309    
1310    checkpoint44h_post = checkpoint45
1311    o Fix to restore differentiability:
1312      place at which packages_init_variables is called in
1313      initialise_varia is crucial for reverse control flow.
1314    o modifications in GMRedi to enable stable adjoint
1315      (corresponding modif's in thermodynamics, dynamics)
1316    o added missing hook for sponge layer code in external_forcing
1317    o modified test cost functions
1318    o storing in gad_advection (plus removal of write(0,*)!
1319    o missing headers TR1.h added in convective_adjustment routines
1320    o errorMessageUnit set non-equal zero in eeboot
1321      (conflict on some platforms, e.g. IBM SP3)
1322    o modified carbon verif.
1323    
1324    checkpoint44h_pre
1325    o vertical grid option: allow to put the Interface at the middle between
1326      2 cell-centers ; replace delZ in pkg/kpp by drF.
1327    o GM Advective form: Tracers are advected using the residual transport (=
1328      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1329    
1330    checkpoint44g_post
1331    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1332      results) ; ifdef missing in thermodynamics.F
1333    
1334    checkpoint44f_pre,checkpoint44f_post
1335    o added PTRACERS package
1336      This allows an arbitrary number of passive tracers to be integrated
1337      forward simultaneously with the dynamicaly model.
1338      + Implemented so far:
1339        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1340        - I/O and checkpointing
1341        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1342      + Not implemented so far:
1343        - KPP
1344        - OBCS
1345      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1346        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1347        line in data.pkg.
1348      + This package is disabled by default since it increases storage.
1349    
1350    
1351    o testscript: added -cleanup option
1352    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1353                 b) enable to filter 2D fields.
1354    
1355    checkpoint44e_pre,post
1356    o re-wrote convective adjustment to use pre-calculated weights
1357      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1358      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1359      Original calls to convect() still in place.
1360    
1361    chkpt44d_pre,post
1362    o added missing EXCLUDE_MONITOR flags
1363    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1364      (incompatible typ in MIN/MAX expressions caused problems
1365      on IBM SP3)
1366    o in genmake added variable MAKEDEPEND
1367      plus resetting for case SunOS
1368    o added timer_stats.c routine for IBM SP3
1369    o removed variables in dynamics
1370    !!! I forgot to create tag chkpt44d_pre !!!
1371    !!! But chkpt44d_pre = chkpt44c_post    !!!
1372    
1373    o real fresh water flux implemented with non-linear free-surface.
1374    
1375    chkpt44c_pre,post
1376    o few fix (mask in shap_s2, EmPmR in external_field_load,
1377      USE_NATURAL_BCS in solve_for_P);
1378    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1379    
1380    checkpoint44b_pre/_post
1381    o merge of relevant stuff from the ecco-branch:
1382      - genmake: removed $S64 overwrite for case SunOS
1383      - pkg/exf: update and corrections for field swapping and obcs
1384      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1385                  harmonized between ECCO and MITgcm
1386      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1387                      updated checkpointing_lev... lists for obcs
1388      - model/src: minor changes in forward_step, plot_field
1389                   added directive for divided adjoint in the_main_loop
1390      - pkg/mdsio: added mdsio_gl_slice
1391    
1392    o check parameters & config (chkpt44a_pre,post)
1393    o OBC and NonLin_FrSurf.
1394    
1395    checkpoint44
1396    o fix bug in mom_vi_del2uv
1397    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1398    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1399    o update AIM experiments (NCEP input files)
1400    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1401    o added some stuff for AD
1402    
1403    checkpoint43
1404    o added two new advection tests
1405    o added global 4x4 degree ocean test
1406    o added test of H&S94 with free surface on cube
1407    o some final mods for gradient check, adjoint,...
1408    
1409    checkpoint42
1410      Fixed AD-related problems:
1411    o Store directives up-to-date with re-arranged Adams-Bashforth
1412      (mainly thermodynamics.F)
1413    o New store directives for multi-dim. advection schemes
1414      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1415      * new common block and key passkey
1416      (mainly gad_advection.F)
1417    o Modified store directives for split of dynamics/thermodynamics
1418      for the case ALLOW_KPP
1419    o Cleaned argument list for timestep_tracer.F
1420    
1421    checkpoint41
1422    o re-formatted/added comments in prologues of key subroutines
1423      to work with protex
1424    
1425    checkpoint40
1426    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1427    o added FLT (floats) package from Arne along with demo. experiment
1428    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1429      implementation of forward-in-time forcing terms
1430    o more mods for non-linear free-surface including new variable
1431    o modified multi-dim method to work on cube
1432    o bug fix in KPP (from DM)
1433    
1434    checkpoint40pre9
1435    o added DST advection schemes
1436    o fix MPI bug on SGI's
1437    o modifications for non-linear free-surface
1438    o fixed conditionals for fixed flow/passive tracer only mode
1439    o added tension/strain form of stress tensor
1440    o changes to commenting of arguments for TAF/TAMC
1441    o added/updated many matlab scripts
1442    o added multi-dimensional advection method for tracers
1443      
1444    checkpoint40pre8
1445    o new package rw/
1446      Added method for dumping intermediate local arrays:
1447      mdsio_writetile - same as mdsio_writefield except works from inside
1448                        bi,bj loop
1449      mdsio_writelocal - same as mdsio_writetile except works for local
1450                         arrays
1451      write_local_r? - higher-level wrapper for mdsio_writelocal
1452      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1453      Example given at end of mom_vecinv.F that dumps some local arrays.
1454    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1455      control flux-form versus vector invariant code.
1456      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1457      or genmake -DISABLE ...
1458    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1459      (additional storing is now needed for case vecinv;
1460      currently nothing implemented to switch this storing off
1461      in case fluxform is used since no CPP flag available).
1462    
1463    checkpoint40pre7
1464    o bug fix in dynamics.F
1465      calc_viscosity called before k=1,Nr loop.
1466    o added some #ifdef's ALLOW_PASSIVE_TRACER
1467    o cleaned initialisations in ctrl_map_ini
1468      related to TAF
1469    
1470    checkpoint40pre6
1471    o split dynamics into thermodynamics & dynamics
1472    o corresponding split of calc_diffusivity into
1473      calc_diffusivity, calc_viscosity
1474      (kpp_calc_diff, kpp_calc_visc).
1475    o Added diffkr, kapgm to control variables
1476    o bug fix in gmredi_slope_limit for ldd97
1477    
1478    checkpoint40pre5
1479    o proper initialization of Adams-Bashforth time stepping
1480      + uses forward step for very first step of model (iter=0)
1481    o re-generated *all* output since almost all output is modified by this
1482      change (sorry but we've been putting this one off for about 2 years)
1483      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1484        *not* regenerated since they are already out of date and I don't
1485        want to create the impression that they are suddenly working.
1486    o removed KAP stuff for DEC's
1487    o modified/added many .cvsignore files in */code and */input
1488    o added new expt "solid-body.cs-32x32x1"
1489      + this uses an alternative form of ini_curvilinear_grid.F which
1490        is not necessarily any better than the current one...
1491    
1492    checkpoint40pre4
1493    o added re-initialisations of utrans,vtrans,rtrans in
1494      calc_common_factors which are crucial for TAF.
1495    o extended iMin,jMin range for calc_common_factors,
1496      calc_diffusivity
1497    o added option ALLOW_PASSIVE_TRACER
1498    o a few minor updates and fixes
1499    
1500    checkpoint40pre3
1501    o created calc_gtr1.F for gad package
1502    o split the_main_loop and re-introduced forward_step
1503    o some recomputations of nIter0 for TAMC
1504    
1505    checkpoint40pre2
1506    o Updated to latest branch of AJA, JMC
1507    o Added gradient check package
1508    o Added routines for passive tracer handling
1509    o Added carbon sequestration sensitivity experiment
1510    
1511    checkpoint39
1512     o Modifications and fixes to support TAMC
1513       (mainly missing or wrong directives)
1514     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1515       in addummy_in_stepping
1516     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1517     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1518     o Included following packages:
1519       cal: calendar
1520       exf: external forcing
1521       ecco: essential routines to control use of cal, exf
1522             (NB: this is not the full ECCO environment)
1523     o disabled some packages by default in genmake
1524    
1525    checkpoint38
1526     o see notes_c37_adj.txt
1527     o corrected wrong layer index in external_forcing_t
1528     o replaced the_main_loop/forward_step by the_main_loop
1529     o removed forceoutput from write_state
1530       (replaced criteria for initial/final state)
1531     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1532    
1533    checkpoint37
1534     o mdsio.F routine split and packaged in pkg/mdsio
1535       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1536        used unless genmake -disable=mdsio)
1537     o allow a more precise surface-geopotential gradient for the atmosphere
1538       taking into account the change in space of Alpha (=1/rho) at the surface.
1539     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1540       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1541     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1542       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1543       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1544     o Time-Average diagnostics defined as a pseudo package "timeave".
1545     o pickup files : old pickup (before c35) did not work with new code (c35
1546       and after) unless activating 2 commented lines in initialise-varia.
1547     o Non-Hydrostatic pickup file Pb fixed.
1548     o bug with Rigid-lid version (since c35) fixed.  
1549    
1550    checkpoint36
1551     o implement Crank-Nickelson barotropic time-stepping
1552     o recover Time-Average diagnostics
1553     o fix Pb in checkpoint (PR#19)
1554     o AIM become a standard package ; clean unused CPP_kees
1555    
1556    checkpoint35
1557     o subtantial rewrite of dynamics.f
1558     o allows staggered time-stepping
1559     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1560     o added bottom drag (linear + quadratic)
1561    
1562    checkpoint34
1563     o Modified exchange routines for correct reverse simulation.
1564     o Added verification output to comply with bug fix in impldiff.F
1565       as of c33 (exp2, natl_box).
1566     o Corrected store directives in dynamics.F
1567     o Corrected array boundaries in impldiff.F
1568     o Corrected array dimensions in gmredi.
1569       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1570     o Added routine GLOBAL_SUM_INT to global_sum.F
1571     o Added mdsio_gl.F for ECCO purposes.
1572    
1573    checkpoint33
1574     o Fixed bug in lower BC in impldiff.F
1575     o Fixed confusion about units of forcing arrays in FFIELDS.h
1576       namely Fu,Fv,Qnet,Qsw,EmPmR:
1577       - Removed verification/natl_box/code/external_fields_scale.F
1578         (did not differ from that in model/src)
1579       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1580         (see FFIELDS.h for description)
1581       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1582         kpp_calc.F and kpp_transport_t.F
1583       - Removed model/src/external_fields_scale.F and calls to it
1584       - verification/natl_box uses flux data with "atmospheric" sign so
1585         a special version of external_fields_load.F is used to
1586         change the data as it's read in. This way, the arrays
1587         have the right units and signs at all times tha a user could
1588         possibly use them.
1589     o Corrected genmake to delete a temporary file during configuration
1590    
1591    checkpoint32
1592     o Scaling of forcing fields moved from external_forcing.F to
1593       external_fields_scale.F, called directly after loading fields.
1594     o Surface relaxation terms added to surface tendency fields in
1595       extra subroutine.
1596     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1597       fields.
1598     o Changes in GMRedi to comply with packaging structure.
1599     o Modifications and bug fixes in KPP package.
1600     o Verification experiment for KPP added (verification/nat_box/)
1601    
1602    checkpoint31
1603     o Packages interface brought in line with defined standard
1604       -> new routines packages_...F
1605       -> changes in initialise_fixed.F, initialise_varia.F
1606       -> enables initialisation interface for ECCO package
1607     o Rescaling of external forcing fields immediately after read
1608       (removed from external_forcing.F)
1609       -> new: surface_fields_scale.F
1610       -> affects ini_foorcing.F, external_fields_load.F
1611     o Computation of surface tendencies before tendency updates.
1612       -> new: external_forcing_surf.F
1613     o Change of variable names useGMRedi, useKPP, useECCO
1614     o Further changes in dynamics.F, impldiff.F for TAMC
1615     o Tested for experiments 0, 2, 4.
1616       - not yet tested for GMRedi.
1617       - not yet tested for KPP.
1618    
1619    checkpoint30
1620     o Updates for OBCs
1621     o New experiment for test OBCs (internal_wave)
1622     o New output.txt in verification/exp4/results/
1623     o Updates for KPP: calculation of viscosity corrected, new variables
1624       kpp_dumpFreq and kpp_taveFreq
1625     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1626       and entry for T90 in genmake
1627    
1628    checkpoint29
1629     o packaged KPP and GM/Redi
1630    
1631    checkpoint28
1632     o Corrected initialization of hFacMin for difference vertical coordinates
1633     o Modified calculation of partial cell thickness to more robust algorithm
1634     o config_summary.F: replaced write_1D_... by write_0D_...
1635       read_write.F: added subroutines write_0D_...
1636     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1637       included some initialisations required for TAMC.
1638     o routine calc_isoslopes: modified sqrt computation to make it
1639       differentiable for zero argument.
1640     o routines dynamics, impldiff:
1641       included store directives and tape key computations required for TAMC.
1642     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1643    
1644    checkpoint27
1645     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1646       formulation works properly with variable resolution.
1647     o restructured the calling tree between the_model_main() and dynamics()
1648     o split initialise() into initialise_fixed() and initialise_varia()
1649     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1650       in new routine ini_psurf()
1651    
1652    checkpoint26
1653     o moved some #ifdef in optional routines to encompass everything
1654       except the argument declarations. This was using up some memory.
1655     o fixed macros like _ADT to work with both versions of Linux cpp
1656     o cleaned up some unused and uninitialized variables
1657       (helps when debugging with strict compile options)
1658     o split up CPP_EEOPTIONS.h into options and macros
1659       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1660     o patch for 2 processor JAM mode
1661    
1662    checkpoint25
1663     o updates for OBCs and NH
1664     o dramatically reduced memory usage
1665     o added "JAM" routines for use on Artic network
1666     o parameterization of convection by implicit vertical diffusion
1667     o added a diagnostic of convective index
1668     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1669       (this is was partly for OBCs and NH but also in anticipation of
1670        an explicit free-surface option)
1671     o initial state input files for U and V
1672    
1673    checkpoint24
1674     o Removed some spurious "REAL"s
1675     o Updated KPP to latest version from JPL
1676     o Added a COS(latitude) in horizontal viscosity
1677    
1678    checkpoint23
1679     o Added del^4 diffusion for salt and temperature
1680     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1681    
1682    checkpoint22
1683     o Made many small changes: implicit none, format(i5), etc...
1684     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1685    
1686    checkpoint21
1687     o Introduced new I/O package that supports direct-access records (mdsio.F)
1688     o Split-up mid-level I/O routines
1689     o Updated input data for experiments 0,1,2,4 and 5
1690     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1691    
1692    checkpoint20
1693     o Tidied up open-boundaries some more
1694     o Added non-hydrostatic code
1695     o Fixed some input data
1696     o Modified MPI start-up to work in "coupled" context.
1697    
1698    checkpoint19
1699     o Tidied up directory structure for verification experiments.
1700     o Added new code for open boundaries.
1701     o Corrected advective terms near boundaries.
1702     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1703     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1704     o Split default parameters out of ini_parms.F into set_defaults.F.
1705    
1706    checkpoint18
1707     o Further changes for optional code generation with
1708       CPP - ugh!
1709    
1710    checkpoint17
1711     o Beginning to incorporating modularity
1712       for supporting atmos. and ocean configs.
1713     o Small changes for TAMC complinace
1714     o New ultra simple test case. Barotropic box
1715       configuration "exp0".
1716    
1717    checkpoint16
1718     o Minor changes to exchange routines to support
1719       accumulation in reverse mode. Adjoint of an
1720       assignment is an addition.
1721     o Changes to support compilation by TAMC (LR(1)
1722       syntax) and by g77 under Linux ( 72 character
1723       limit ).
1724    
1725    checkpoint15
1726     Rewrote exchange routines to allow
1727     o General tile <-> tile connectivity.
1728     o TAMC reverse mode flag ( is this really needed? )
1729     o Variable width overlap and exchange region widths.
1730     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1731       shmput/shmget, VIA, SYSV shmem and every other cool
1732       communication method.
1733    
1734    checkpoint14
1735     Consistent isomorphism chages made. These allow dynamical core
1736     to support both pressure and meters as a vertical coordinate.
1737    
1738    checkpoint13
1739     Release which corrects global_max problem and a couple
1740     of KGM time-averaging diagnostic errors. Also contains
1741     a double-gyre experiment setup as well as the baseline
1742     4 degree global template. The double gyre template is
1743     organised to allow it to be applied automatically to
1744     the baseline configuration.
1745    
1746    branch-point-rdot
1747     A few tidy-ups have been made bt the real point of this
1748     check-point (excuse the pun) is to allow a branch to be
1749     made for the purposes of adding the rDot alterations.
1750     I don't want to commit the rDot to the main-trunk until
1751     we've actually tested it...
1752    
1753    checkpoint12
1754     Tidy up and added generic genmake script (formerly
1755     configure script).
1756     Released to testers.
1757    
1758    checkpoint11
1759     Re-arranged initialise() and introduced ini_vertical_grid()
1760     and ini_masks_etc().
1761    
1762  checkpoint10  checkpoint10
1763   Introduced the configure script.   Introduced the configure script.
1764   Separated out the diags package.   Separated out the diags package.

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