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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.320 by dimitri, Mon Jul 5 20:05:07 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 require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
7      - modified verification/lab_sea and natl_box_adjoint accordingly
8    
9    checkpoint54
10    checkpoint53g_post
11    o prepare splitting of thermodynamics: store convect.counter in common block
12    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
13      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
14    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
15    o new parameter "nShapS": allow to treat differently S from T (nShapT)
16    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
17    o restore adjointability
18    
19    checkpoint53f_post
20    o modifications that affect AIM experiment results (update output.txt):
21      - no advection of S at top interface Nr (pkg/generic_advdiff)
22      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
23    o AIM pkg:
24      - include stability function into surf.Flux derivative relative to Tsurf
25      - calculate clear-sky radiation & surface temp. change (for diagnostics)
26    
27    checkpoint53e_post
28    o merged cylindrical coord configuration
29    o added rotating_tank experiment
30    checkpoint53e_pre
31    
32    checkpoint53d_post
33    o faulks upgraded: re-generate output.txt that have changed:
34       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
35    o Added Bryan and Lewis, 1979, vertical diffusivity profile
36    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
37    o added Sadourny discretization of Coriolis
38      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
39      - re-enabled use of omega3 (useAbsVorticity)
40    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
41      vector-invariant equations
42      - note: does *NOT* yet use same variable visc. for no-slip BC's.
43    o recoded the lateral boundary conditions for non-hydrostatic w, this time
44      hopefully without new bugs
45      - still to do: biharmonic friction for non-hydrostatic w
46    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
47    o regenerated output for global_ocean_ebm (using -ieee)
48    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
49      of mom_common/
50      - simple re-arrangement of instructions within computing loop
51    checkpoint53d_pre
52    
53    checkpoint53c_post
54    o new version of coupler for AIM+thSIce and Ocean models
55     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
56     - land: change Evaporation of snow
57     - aim with thSIce: fix bug in snow-precip.
58    o changes to calc_gw.F
59     - bug fix for w^2 term near the bottom boundary
60     - (hopefully) improve the lateral slip boundary condtions for use with
61        partial/looped cells
62      - because the bug fix changes two verification experiments anyway (exp5
63        and plume on slope), change the lateral boundary condition from half slip
64        to the value of no_slip_sides
65    o ebm package wasnt quite up to the parallel task. Fixed that.
66    o Adjoint of EBM package + verification
67      * TLM OK
68      * ADM not sufficient accuracy yet (needs further testing)
69    
70    checkpoint53b_post
71    o Commiting new energy balance model to repository
72      * package is pkg/ebm
73      * verif. is verification/global_ocean_ebm
74      * references are in ebm_driver.F
75    C      * X. Wang, P. Stone and J. Marotzke, 1999:
76    C        Global thermohaline circulation. Part I:
77    C        Sensitivity to atmospheric moisture transport.
78    C        J. Climate 12(1), 71-82
79    C      * X. Wang, P. Stone and J. Marotzke, 1999:
80    C        Global thermohaline circulation. Part II:
81    C        Sensitivity with interactive transport.
82    C        J. Climate 12(1), 83-91
83    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
84    C        Destabilization of the thermohaline circulation
85    C        by atmospheric eddy transports.
86    C        J. Climate 7(12), 1870-1882
87    o Will need long integration testing.
88    checkpoint53b_pre
89    
90    o created pkg/mom_common in preparation for variable viscosity code
91    o renamed and split ini_mnc_io
92    o pkg/land: only liquid water can diffuse or run-off
93    o AIM using land: soil wetness availability account for snow
94    o added printMapIncludesZeros to EEPARMS namelist
95    
96    checkpoint53a_post
97    o restore TAMC compatiility for exf_constants.h
98      (no usage of _d in .h)
99    o Additional storing in KPP in an attempt to fix
100      TAMC problem with adjoint of KPP code.
101      (no success...)
102      Identical code works fine with TAF.
103    o Fixed verification/natl_box_adjoint experiments.
104      Initial conditions for Experiments 4 and 5 are now
105      set to "SEAICE_initialHEFF=0", which is more reasonable,
106      and hence gives results closer to that of Experiment 2.
107      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
108    
109    checkpoint53
110    o stable checkpoint with up to date adjoint
111      TLM tests only run for 1st grdchk at the moment. Its unclear if
112      this is a code problem or a problem with resetting code for g_
113      variables that is being autogenerated wrong.
114      Otherwise:
115       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
116       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
117         are both still in chaos following their security messes.
118    
119    checkpoint52n_post
120    o various build (mostly genmake2) changes including:
121      - ability to build/run more easily within Cygwin and MacOS X
122      - more complicated Makefiles with a stronger dependence on Gnu Make
123    o pkg/seaice modifications
124      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
125        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
126        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
127      - changed proxy for geostrophic velocity and updated
128        verification/lab_sea/results/* accordingly
129      - removed ADI dynamic solver from pkg/seaice
130      - replaced all occurrences of 1/CSTICE or 1/CSUICE
131        they caused a segmentation fault under certain circumstances
132      - removed unused field WATR
133    o bug fix in exf-package:
134      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
135         now reflect that.
136    o small fixes in the cal-package:
137      - set reference date to first of January for the 'model'-calendar
138      - failing of cal_CheckDate in cal_FullDate now actually results in a
139        warning
140    o small modifications in exf-package to increase flexibility:
141      - change climtempfreeze from a constant to a runtime parameter that
142        is specified in data.exf_clim (default = -1.9)
143      - introduce runtime parameter windstressmax (default = 2.0) that is
144        specified in data.exf
145    o fix in pkg/thsice:
146      - update Evap (Tsf changes) to be consistent with Latent heat flux
147      - maintain snow precipitation unchanged (even if Tsf >=0).
148     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
149    
150    checkpoint52m_post
151    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
152      this does not change any of the results, because myIter=0 in swfrac always
153      lead to jwtype=2 (the default anyway), but the call makes little sense
154      as a default
155    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
156    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
157      atmospheric model (AIM) to use it ; add a "slab ocean" component.
158    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
159    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
160    o extending useSingleCpuIO option to work with new exch2 I/O format
161      - old-style, missing-tile I/O is still accessible by defining CPP
162        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
163    o monitor package can write to NetCDF files and/or STDOUT
164    o fix re-definition bug in MNC_GRID_INIT_ALL()
165    o doc/api_reference added
166      - a framework for building an API Reference Manual using all
167        the "protex" comments embedded in the code
168      - see pkg/generic_advdiff, pkg/mnc for examples
169    o MNC:
170      - make myThid the last argument for all subroutines
171      - new default for the grid files: NO halos
172      - add useMNC and other run-time flags
173      - separate per-file-group handling of the unlimited dimension
174      - early initialization of MNC w/ flags read at the eeboot stage
175        and lookup tables set in initialize_fixed
176      - write all MNC output to a freshly-created directory
177    o thermodynamics sea-ice (thsice) is now tested with testreport.
178    o test exp. advect_cs: use the standard cs32 grid ; update output.
179    o Added functionality to grdchk:
180      pick global i,j,k position (or nearest wet) where to perform check.
181    
182    checkpoint52l_post
183    o new land formulation:
184      a) use ground enthalpy as prognostic variable to ensure exact
185         energy conservation.
186      b) account for water temperature and for latent heat of freezing
187         in all processes (rain, run-off, ground storage)
188      c) compute surface and ground temperature implicitly.
189    o aim_v23 modification for new land model:
190      a) Treat separately land / ocean / sea-ice surface fluxes
191         to allow implicit computation of land & sea-ice surface temp.
192      b) add snow precipitation.
193    checkpoint52l_pre
194    
195    o fix problem (when 1 tile is empty) in min/max monitor.
196    o fix bug in timeAve (u,vZetatave in common block)
197    o no restoring terms under ice for pkg/seaice
198    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
199    o bug fix for pkg/seaice pickups
200    o change MNC call locations and add coordinate attributes
201    o mask vorticity at the corner ; affects global_ocean.cs output
202    o fix ini_curvilinear_grid ; test CS experiments with mpi
203    o aim.5l_cs: modify sea-ice fraction input file ; update output
204    o exf: Adding simple range check routine for exf fields after read
205    
206    checkpoint52k_post
207    o removed top-level directory "diags"
208      - we migrated these functions to pkg/timeave a long time ago
209    o fixed bug introduced in pkg/monitor
210    o accuracy ctrlprec = 32 insuffient for gradient checks using
211      averaged fields (I/O via cost_averages)
212      -> use ctrl.h in active_file*.F to control I/O precision.
213    o paramter list of CALL ADTHE_MAIN_LOOP
214    o added initial do_the_model_io to ecco
215    o set all ...Freq to zero after cost_final
216      taveFreq, dumpFreq, pChkptFreq
217    o MAIN and ECCO differentiability restored
218    
219    checkpoint52j_post
220    o fix nchklev in tamc.h for global_ocean...
221    o Bringing flow and store directives up-to-date
222    o Really weird thing!
223      call do_the_model_io from the_main_loop with parameters
224      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
225      TAF places a faulty re-call of initialise_varia
226      after cost_final call which should not be there!
227    checkpoint52j_pre
228    
229    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
230      error messages
231    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
232    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
233      debug output
234    o modfied mdsio_writefield.F to handle non-global files under exch2
235    o update AIM Cubed-Sphere exp (aim.5l_cs):
236      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
237    o update AIM Equatorial Channel exp:
238      use standard aim_v23 pkg and change the SST fields to be more realistic.
239    o globalFile now works with exch2
240    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
241      mon_vort3.F to make exch2 friendly with >1 tile per cube face
242    o limit timeave output for hi-res integrations
243    
244    checkpoint52i_post
245    o removed CPP_EEOPTIONS.h from verification/*/code
246    o updated the tiling for global_ocean_pressure
247    checkpoint52i_pre
248    
249    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
250      the old pkg/aim).
251    
252    checkpoint52h_pre
253    o shortened offending lines in exch2_send_rx?.template
254    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
255    o genmake2: add build & execute test for NetCDF code
256    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
257      old grid files, moved CPP_EEMACROS.h to pkg/exch2
258    o added useSingleCPUIO flag to monitor.F and mon_out.F
259    o added temporary hack for sea-ice dynamics on the cube:
260      metric terms are ignored and it is assumed that
261      there is no sea-ice on cube faces 1, 2, 4, and 5.
262    
263    checkpoint52f_post
264    o added exch2 cube routines to pkg/exch2
265    o modified hs94.cs-32x32x5 to use it
266    o added new grid files to hs94.cs-32x32x5
267    checkpoint52f_pre
268    
269    checkpoint52e_post
270    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
271      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
272    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
273      to work with implicit vertical advection and AB ;
274    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
275    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
276     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
277    checkpoint52e_pre
278    
279    o fix bug in impldiff when Nr=1 or Nr=2.
280    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
281    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
282    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
283      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
284    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
285    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
286    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
287    
288    checkpoint52d_post
289    o re-tiled many expts to allow comparison in multi-processor mode
290      - updated output accordingly
291      - changed hs94.128x64x5 to use intial T from file rather than use the
292        random number generator
293    o add infrastructure in model routines for fizhi and gridalt packages
294    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
295    o changes to permit hi-res, cubed-sphere, configuration
296      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
297      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
298      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
299        of surface winds for the cube
300      (A verification experiment, based on global_ocean.cs32x15, but with
301       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
302       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
303       complete with example surface forcing files and matlab scripts to look
304       at the output and compare it with that of global_ocean.cs32x15.)
305    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
306       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
307       to conform to the common rule.
308    o check-in the first version of the coupler + interfaces for multi-components
309       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
310       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
311       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
312       - ocean and atmos. share the same horizontal grid (no interpolation).
313       - exchanges between component and coupler is done in forward_step
314    o new verification experiment, cpl_aim+ocn:
315       coupled ocean - AIM atmosphere on cs32 grid.
316    
317    checkpoint52d_pre
318    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
319    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
320    
321    checkpoint52c_post
322    o Fixing OPTIONS files for use of exf:
323      - ALLOW_ECCO not needed
324      - ECCO_CPPOPTIONS.h should not be included from
325        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
326        as has been the case in the past
327      - All cal/exf related options are currently set in
328        single header file. Should remain so until we
329        agree on a consistent new policy.
330    o Removed all CPP options for cal package.
331      cal has no more CPP options.
332    o modified STOREs in GAD_ADVECTION
333    o corrected key comp. for passkey
334    
335    checkpoint52b_post
336    o new version: "thsice" of thermodynamic sea-ice pkg:
337     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
338     - modify fluxes but do not change theta directly;
339     - light cleaning of bulk_force pkg (still needed with thsice).
340     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
341       + output_thsice.txt to test thsice & bulk_force pkgs.
342    o put back grid & coriolis monitor output.
343    checkpoint52b_pre
344    
345    o call "do_the_model_io" at the beginning (=> dump initial state)
346    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
347    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
348      (need info on NUMBER_OF_PTRACERS)
349    o missing PTRACERS headers in some routines
350    o default tamc.h in pkg/autodiff supposed to crash
351      to ensure proper customization
352    
353    checkpoint52a_post
354    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
355      - moved surfaceTendencyTice from pkg/seaice to main code
356      - subroutine FREEZE_SURFACE now limits only surface temperature
357        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
358        => new output.txt for global_ocean.cs32x15 & global_with_exf
359      - keep the old version of FREEZE for backward compatibility;
360        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
361      - corresponding modifs for TAF directives
362    o added surface flux output variables to TIMEAVE_STATVARS
363    o time-averaged output for pkg/ptracers
364    o fix problem with ECCO-related divided adjoint
365      snapshot file was missing some ad-variables,
366      but no warning issued by TAF
367    
368    checkpoint52a_pre
369    o some bug fixes for #undef REAL4_IS_SLOW
370    
371    checkpoint52 = ecco_c52_e35
372    o after testing adjoints of checkpoint51u_post
373    
374    checkpoint51u_post
375    o this is the post-merge tag of the ecco-branch
376      (needs another clean checkout and re-testing)
377    o various natl_box_adjoint configs and results
378      but no input fields
379    o obcs adjoint not yet merged!
380    o adding ECCO global 1x1 and 2x2 degree configs
381    o updated/extended some store directives for seaice
382    o pkg/ecco now containes ecco-specific part of cost function
383    o top level routines the_main_loop, forward_step
384      supersede those in model/src/
385      previous input data.cost now in data.ecco
386      (new namelist ecco_cost_nml)
387    o in ctrl/ cleaned some cross-dependencies and updated CPP options
388    
389    checkpoint51t_post
390    o this is the pre-merge tag of the ecco-branch
391    
392    checkpoint51s_post
393    o cleanup: removed various obsolete #define-s
394    o pkg/grdchk
395      - renamed 'ph-grd 3' to 'grad-res'
396      - merged from ecco-branch
397        (remaining bug fixes for obcs gradient checks)
398      - additional high-precision output for testreport
399        (grep for 'precision_grdchk_result')
400    
401    checkpoint51r_post
402    o cleaned up or removed CPP_OPTIONS.h files
403    o updated results for some of the tests to reflect the new
404      optfiles (-ieee: -O0 instead of -O3)
405    
406    checkpoint51q_post
407    o cd_code:
408      - moved cd_scheme.F -> cd_code_scheme.F
409      - separate read_checkpoint from cd_code_ini_vars.F
410      - separated cd_code part from write_checkpoint
411      - updated AD_SOURCE, generated .flow
412      - added CD_CODE_VARS.h to the_main_loop
413      - Moving cd_code specific store dir.s to pkg/cd_code
414    o ctrl package totally restructured
415      - pack/unpack now optional and decoupled from
416        xx_/adxx_ I/O
417      - ctrl_pack/unpack cleaned
418        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
419      - confined inclusion of AD_CONFIG.h to where necessary.
420    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
421    
422    checkpoint51p_post
423    o create initial cd_code package
424      - WARNING: the initialization of fields within packages
425        is broken because INI_FIELDS (where READ_CHECKPOINT is
426        called) is called *before* PACKAGES_INIT_VARIABLES.
427        This seems to be backwards since
428        1) its important to initially zero the entire field including
429           the "halo" region
430        2) zeroing needs to be done *before* reading pickup info
431           and the pickup call might or might not happen in any
432           particular run
433      - this needs an overhaul for R2
434    o cleanup verification/*/code/GMREDI_OPTIONS.h
435    o cleanup testreport
436    
437    checkpoint51o_post
438    o bringing AD-related verif's up to date with genmake2
439      - carbon/
440      - global_ocean.90x40x15/
441      - hs.94.1x64x5/
442      - (front_relax/ )
443    o (more) consistent directory structure for AD-related verif.'s
444    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
445    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
446    o bug fix in find_alpha.F for MDJWF:
447      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
448        change rho -> rho-rhoConst
449      - replace call find_rho to find_rhonum
450    o initialisation of rFlx extended to full array (required by TAF)
451      and shifted to thermodynamics
452    o removed PTRACERS.h in ptracers routine
453    o added surfacetendencyPtr to S/R parameter list pracers_forcing
454    o Correcting initialisations for fVerU, fVerV.
455    o helping TAF to recognize dependency on kUp for
456      fVerU, fVerV
457    o Replacing delZ by delR in pkg/ctrl/
458    checkpoint51o_pre
459    
460    o undid all of cp51 pending some cleanups and discussion
461    o added the [#include "AD_CONFIG.h"] statement to all files that need
462       it for adjoint/tl #defines
463     o re-worked the build logic in genmake2 to support AD_CONFIG.h
464     o removed tools/genmake since it no longer works
465    
466    checkpoint51n_post
467    o modifications to make FREEZE flux visible to pkg/kpp
468      - moved surfaceTendencyTice from pkg/seaice to main code
469      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
470      - subroutine FREEZE now limits only surface temperature
471        (this means new output.txt for global_ocean.90x40x15,
472         global_ocean.cs32x15, and global_with_exf)
473    o added surface flux output variables to TIMEAVE_STATVARS
474    
475    checkpoint51n_pre
476    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
477    o added [#include "AD_CONFIG.h"] to all files that use the following
478      defines:
479      - ALLOW_ADJOINT_RUN
480      - ALLOW_TANGENTLINEAR_RUN
481      - ALLOW_ECCO_OPTIMIZATION
482    
483    checkpoint51m_post
484    o incorporating changes to get TAMC/TAF working in genmake2
485      - added new TAMC/TAF targets to the Makefile
486      - various cleanups related to package handling
487      - these changes should have no impact on the forward model
488    
489    checkpoint51l_post
490    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
491     - faster algorithm for cal_addtime.F
492     - higher precision arithmetic, where needed
493     - pkg/exf *startdate variables changed from calendar date to
494       model integration time
495    
496    checkpoint51l_pre
497    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
498    o enable to apply restoring on S & T only in a latitude band.
499    o update output (external_forcing_surf modif. change truncation errors)
500       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
501    
502    checkpoint51k_post
503    o change default to: useNHMTerms=.FALSE.
504     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
505       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
506     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
507        exp1, ideal_2D_oce
508     - change data file of oceanic exp (leave the results unchanged for now)
509       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
510    o set gravitySign automatically according to the vertical coordinate used
511      (and change sign: back to "logical" value: +1 when R increases downward)
512    o added an include barrier to the default CPP_OPTIONS.h and
513      removed the #include "PACKAGES_CONFIG.h" from it
514    o fix a bug in mom_fluxform (from chk51j_post)
515    
516    checkpoint51j_post
517    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
518    o adjusted some flow directives (dynamics, thermodynamics)
519    o added cubed-sphere case to test cost function
520    o heckpoint_lev?_directives.h now include
521      pkg-specific directives, whenever those are enabled.
522    o Moving pkg-specific flow directives to corresponding pkg
523      Moving pkg-specific differentiation list to corresponding pkg
524      Moving pkg-specific checkpoint-lev storing to corresponding pkg
525      ---> conventions are
526           - pkg_ad.flow
527           - pkg_ad_diff.list
528           - pkg_ad_check_lev?_dir.h
529    
530    checkpoint51i_post
531    o merge of the branch-genmake2
532      - knowingly breaks the older genmake
533      - automatic generation of all ALLOW_${PKG_NAME} defines
534      - new testreport supersedes older testscript
535    o large number of package inclusion and header cleanups
536    checkpoint51i_pre
537    
538    o new output for adjoin of global ocean vector invariant
539    o fix for checkpoint of thermodynamic seaice and bulk_force
540    o Steph gchem various cleanups
541    
542    checkpoint 51h_pre
543    o fixed some single quotes
544    o modify gchem pkg to be more versatile
545    o modifications to clean up dic pkg
546    o add pkg/cfc
547    
548    checkpoint51g_post
549    o provide links for ARPACK and ADM*TLM
550    o start removing verification/vero/
551    o update AD-related stuff
552      (in particular some IF-statements in model/src/ routines)
553    o adding to verification/global_ocean.90x40x15/ adjoint of
554      vector invariant setup
555    
556    checkpoint51f_post
557    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
558    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
559      of tracer Green's fucntions for ocean inversion project.
560    
561    checkpoint51f_pre
562    o Added on-the-fly spatial interpolation capability
563        "USE_EXF_INTERPOLATION" to pkg/exf.
564      - This is a temporary Cartesian-grid hack until
565        the super-duper ESMF coupler becomes available.
566      - See verification/global_with_exf/README for usage example.
567      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
568        flags and modified pkg/seaice accordingly.
569    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
570        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
571        non-local transport term.
572    
573    checkpoint51e_post
574    o pkg/mom_vecinv:
575      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
576      - add time-ave diagnostic of vorticity advection.
577    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
578    o atmospheric geopotential: - include water vapor effect;
579                                - use p^kappa in p* scaling.
580    o land pkg: read initial state from files.
581    o AIM : add stratospheric drag in the upper level
582    
583    checkpoint51d_post
584    o change function ILNBLNK (=> last non-blank char.) to return zero
585      (instead of the string length) when the string. char is empty
586    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
587    o modif's to restore TAMC compatibility
588      - avoid "_d" constructs in PARAMETER declarations
589      - avoid interrupting lines by comment lines
590    o Use cluster local disks for purely local I/O
591      vs. globally visible disks needed for ctrl stuff
592      (merged from ecco-branch)
593      - new active_file_loc... and mdsio_..._loc routines
594      - affected packages: autodiff, ctrl, grdchk, mdsio
595    
596    checkpoint51c_post
597    o introducing integer flag debugLevel
598      - debLevZero: suppress all output
599      - debLevA: standard
600      - debLevB: equivalent to current debugMode=.TRUE.
601    o introducing pathname variable mdsioLocalDir for mdsio
602      that can be specified at runtime
603      (relevant for cluster I/O to local disk)
604    `
605    >>>checkpoint51b_post
606    adjoint of ptracers
607    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
608    o extended state in checkpoint_lev?, etc.
609    o alternative ctrl/cost with tr1 or ptracer
610    o new comlev1_bibj_ptracers
611    o new ptracers.flow
612    o made ptracers_forcing same as external_forcing_s
613    o added verification for adjoint with ptracers
614      - adm. grdchk fail so far
615      - tlm. grdchk OK
616      - checked tapelev/comlev recomputations: OK
617    <<<checkpoint51b_pre
618    
619    checkpoint51a_post
620    o added code for biogeochemistry package
621      - new pkgs: dic, gchem
622      - new subroutine in ptracers
623    o modify code for biogeo packages
624      - in model/src and pkg/ptracers
625    
626    checkpoint51
627    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
628      - autodiff, ctrl, exf, grdchk, seaice
629      kept separate packages
630      - cost, ecco, obcs
631    o updating verification/internal_wave, verification/lab_sea
632      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
633    
634    checkpoint50i_post
635    o Preparing next differentiable checkpoint and sync
636      of MAIN vs. ecco-branch
637      - 1st step: this one is differentiable
638      - 2nd step: next(! not this) checkpoint will have updated packages
639                  from ecco-branch)
640    
641    checkpoint50h_post
642    o new package "land": provide surface BC for AIM.
643    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
644    o AIM: use true log-P extrapolation for near surface temp (= as in
645        F.Molteni paper) ; update aim.5l_cs output.
646    o New variable in PARM03 for more flexible pickups
647    o somewhat cleaned package initialisation sequence for
648      ctrl/ cost/ ecco/ in packages_... routines
649    
650    checkpoint50g_post
651    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
652      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
653      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
654        made the default because of faster convergence than ADI
655    
656    checkpoint50f_post
657    o exf totally restructured
658      - replaced all exf_set_ routines by one generic exf_set_gen.F
659        and made sure it's still differentiable
660      - split exf_getffields.F into new exf_bulkformulae.F
661      - exf_inscal_/exf_outscal_ suffixes consistent with field names
662      - updated adjoint/makefile and relevant verif. accordingly
663    
664    checkpoint50f_pre
665     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
666          + change Evap over land. (update aim.5l_cs output)
667     o added missing .cvsignores and made uniform across expts
668     o changed configuration of tidal_basin_2d expt
669     o added pkg/debug functions for tracing code in fatal crashes
670     o tidied pkg/monitor to use MONITOR_OPTIONS.h
671     o new fn in pkg/monitor to stop model if solution grows too big
672     o removed lots of single quotes from comments
673    
674    checkpoint50e_post
675    o make KPP work with PTRACERS
676     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
677       nearly a copy of kpp_transport_s
678     - there is no analogue to SurfaceTendencyS, so I have to use
679       gPtr(of the surface layer) instead
680    o add a new platform SunFire+mpi (SunFire 15000) to genmake
681    checkpoint50e_pre
682    
683    checkpoint50d_post
684    o change kpp output from multiple-record state files to single-record state
685      files analogous to write_state.F
686    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
687      analogous to the cg2d-related output.
688    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
689      so that writing to internal file fn (with length 512) fails.
690    checkpoint50d_pre
691    
692    checkpoint50c_post
693    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
694    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
695    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
696    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
697    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
698    
699    checkpoint50c_pre
700    Merging from release1_p13:
701    o bug fix for pkg/seaice dynamic solver
702    o Added SEAICE_initialHEFF to pkg/seaice
703    
704    checkpoint50b_post
705    o store u*,v* in gU,V instead of in guNm1,gvNm1
706    o in order to put the momForcing out of the Adams-Bashforth:
707      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
708      to timestep.F
709    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
710    o re-generate output for highly sensitive test-exp:
711       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
712    
713    checkpoint50b_pre
714    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
715    o corrected CPP option mismatch in exf_Bulk... functions for case
716      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
717    
718    checkpoint50a_post
719    o Bug fix for merging between c50 and KPP.
720      ikey was passed from thermodynamics to kpp_calc via
721      common block rather than being recomputed in kpp_calc,
722      in contradiction with new key itdkey.
723      New key ikppkey created, and tamc.h headers updated.
724    
725    checkpoint50
726    - 2nd step of merge with ecco-branch:
727      merge changes in ecco-branch back into main trunk
728    - bug fix in find_alpha
729    - more storing in gmredi_calc_tensor.F, kpp_routines.F
730    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
731    - merged some sliced AD support routines
732    
733    checkpoint49
734    merged from ecco-branch:
735    o exf:
736      - Enable initialisation of forcing fields to constant
737        (runtime) values.
738      - in exf_getffields.F
739        Reduce i-/j-loop to interior domain, discarding overlaps.
740        That also fixes wrong TAF-key computations for key_1, key_2
741        with bulf formulae.
742      - exf_init.F modify #ifdef for exf_init_evap
743      - exf_getffieldrec.F, ctrl_getrec.F
744        The following INT-usages are not safe:
745          fldsecs  = int(fldsecs/fldperiod)*fldperiod
746          fldcount = int(fldsecs/fldperiod) + 1
747        and were modified.
748    o autodiff: checkpoint_lev...
749      - updated storing for bulk formulae (some arrays were missing)
750      - added state for seaice package
751      - synchronized with main branch
752    o DIVA:
753      Modif.s in
754      - the_main_loop.F
755      - the_model_main.F
756      and added cost_final_restore.F cost_final_store.F
757      o With these changes, it is possible to fully separate
758        the first forward run to compute the cost function (mdthe_main_loop)
759        and adjoint runs over individual DIVA intervals (adthe_main_loop)
760        into separate model executions.
761        This enables better tuning of DIVA to given queue sizes.
762      o Loss of cost function value in consecutive DIVA runs is
763        fixed by storing to 'costfinal' file.
764      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
765        beginning/end of adjoint integration is accounted for.
766      The current changes apply to TAF-1.4.26.
767      TAF has one remaining bug, requiring one manual change
768      (see MITgcm manual).
769    o cal: synchronized between MAIN and ecco-branch
770    
771    checkpoint48i_post
772    o Changes to restore differentiability of code w.r.t. previous tag
773      (mostly adding new routines to make list and replacing
774      pressure by totPhiHyd).
775    o Updated and merged grdchk package
776      - has both ADM and TLM checks
777      - works for single- and multi-proc.
778      - output cleaned
779      - worked successfully for parallel DIVA
780    o genmake:
781      - Adding -platform=SP4
782      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
783    o Modif. for DIVA:
784      ctrl_unpack should not be called in intermediate DIVA interval.
785      (similar thing would apply for active files such as
786      tbar, sbar, psbar, which should not be reinitialised;
787      only relevant for ecco-branch)
788    
789    checkpoint48h_post
790    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
791    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
792    o Added SEAICE_initialHEFF to pkg/seaice
793    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
794    
795    checkpoint48g_post
796    --- EOS:
797    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
798      store total Potential in totPhyHyd for diagnostics & EOS.
799    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
800    --- Pressure/geopotential gradient:
801    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
802    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
803      ( changes results of global_ocean_pressure )
804    o NLFS + z-coord.: add eta*Rho' contribution.
805    o accurate phiHyd when using interface-W at the middle between 2 centers
806     ( changes results of ideal_2D_oce )
807    o includes r* 2nd term in potential gradient.
808    
809    checkpoint48f_post
810    Merging from release1_p12:
811    o Modifications for using pkg/exf with pkg/seaice
812      - improved description of the various forcing configurations
813      - added basic radiation bulk formulae to pkg/exf
814      - units/sign fix for evap computation in exf_getffields.F
815      - updated verification/global_with_exf/results/output.txt
816    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
817      (SBO) core products, including oceanic mass, center-of-mass,
818      angular, and bottom pressure (see pkg/sbo/README.sbo).
819    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
820      to avoid negative values in shallow regions.
821      - updated verification/natl_box/results/output.txt
822      - updated verification/lab_sea/results/output.txt
823    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
824    o Added useSingleCpuIO option (see PARAMS.h).
825    o Updated useSingleCpuIO option in mdsio_writefield.F to
826      work with multi-field files, e.g., for single-file pickup.
827    o pkg/seaice:
828      - bug fix in growth.F: QNET for no shortwave case
829      - added HeffFile for specifying initial sea-ice thickness
830      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
831    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
832      kpp_transport_t.F, forward_step.F, and the_main_loop.F
833    o pkg/seaice:
834      - adjoint-friendly modifications
835      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
836    
837    checkpoint48e_post
838    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
839    o dynamics: change definition of computational domain & adapt mom_fluxform
840      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
841    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
842        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
843        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
844        global_ocean.90x40x15 global_with_exf global_ocean_pressure
845        inverted_barometer solid-body.cs-32x32x1
846      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
847    
848    checkpoint48d_post
849    o in preparation for r*:
850     a) use pre-computed gradient of hydrostatic potential:
851        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
852     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
853        => affects results of glob_oce_pressure (different truncation error)  
854      update output.txt of ideal_2D_oce & global_ocean_pressure
855    
856    checkpoint48d_pre
857    o in preparation for r*:
858      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
859      pass the 2 comp. of the grad. as arguments to momentum S/R.
860      but for the moment, only used if it does not change the results.
861    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
862    
863    checkpoint48c_post
864    Modifications in treatment of initial flux forcing controls
865    to avoid extra storing of flux fields.
866    
867    checkpoint48c_pre
868    o Added tidal_basin_2d experiment (currently 1D!)
869    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
870    
871    checkpoint48b_post
872    o r* coordinate added in #ifdef NONLIN_FRSURF block.
873     (modification to pressure gradient not yet implemented)
874    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
875      (for U & V) that are used for vertical advection of momentum.
876    
877    checkpoint48a_post
878    o In preparation for r*, use temp. array to compute vertical transport
879       in flux-form momentum pkg. => change results of few test-exp.
880      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
881                        lab_sea, natl_box & plume_on_slope
882    
883    checkpoint48
884    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
885    
886    checkpoint47j_post
887    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
888    o moved adexch from forward_step to addummy_in_stepping
889    o added exch in ctrl_map_...
890    o aveFreq.=0. at end of cost_final to avoid overwrite in
891      reverse checkpointing loop
892    o Yet more changes in gmredi:
893      * adgmredi_calc_tensor
894        avoiding all recomputation of gmredi_slope_limit
895      * adgmredi_x/y/rtransport
896        added flag for excessive storing to avoid recomp. of
897        u/v/rtans, dTdx/y/z
898        -> this is not really necessary and very memory-consuming
899      * adgmredi_slope_psi:
900        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
901      * gmredi_slope_limit
902        re-activated full calculation of taperfct for case 'ac02'
903    o updating verification/ adjoints of carbon, global_ocean.90x40x15
904    
905    checkpoint47i_post
906    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
907    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
908      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
909    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
910    o gmredi: fix few bugs.
911    
912    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
913    This will be a good checkpoint to plug into the ecco-branch.
914    o few modif.'s to get latest version adjointed
915      (mainly kick out code in ini_linear_phisurf)
916    o modif's to run adjoint with exactConserv
917    o case GM_BOLUS_ADVEC should be cleaned
918      S/R gmredi_slope_psi should be cleaned
919    o verification/carbon now has exactConserv=.TRUE.
920    
921    checkpoint47g_post
922    o time-average AIM output: becomes independent from statvars time-average
923      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
924    o After TAF bug fix:
925      Tested adjoint of gmredi package.
926      Tests were done with checkpoint47 rather than with latest
927      checkpoint47f_post since the latter is broken for the adjoint
928      verification/carbon/ contains both ADM and TLM gradient checks.
929    Here they are, before they get changed/lost/stolen.
930    Mostly modif.'s to fix numerical sensitivities.
931    Gradient checks OK for
932    - GM_taper_scheme:
933      * clipping
934      * ac02
935      * linear
936      * glw91
937      * dm95
938      * ldd97
939    - GMREDI_OPTIONS:
940      * GM_VISBECK_VARIABLE_K
941      * GM_NON_UNITY_DIAGONAL
942      * GM_EXTRA_DIAGONAL
943      * GM_BOLUS_ADVEC
944    in conjunction with data.gmredi parameters to be checked in
945    in a few minutes under verification/carbon/code/
946    
947    checkpoint47f_post
948    Merging from release1_p10:
949    o modifications for using pkg/exf with pkg/seaice
950      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
951        and SEAICE_EXTERNAL_FLUXES
952      - pkg/exf CPP options EXF_READ_EVAP and
953        EXF_NO_BULK_COMPUTATIONS
954      - usage examples are Experiments 8 and 9 in
955        verification/lab_sea/README
956      - verification/lab_sea default experiment now uses
957        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
958    
959    checkpoint47e_post
960    o created a tag prior to creating a branch
961    
962    checkpoint47d_post
963    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
964      at the bottom boundary had an erroneous half slip boundary condition
965    o added bottom drag and no slip boundary condition capabilities to
966      oceanic pressure coordinates code
967    o added new verification experiment global_ocean_pressure, this experiment is
968      also described in the tutorial section of the manual
969    checkpoint47d_pre
970    
971    checkpoint47c_post
972    o Added a verification experiment for a global cubed-sphere ocean run
973      -  verification/global_ocean.cubed32x32x30
974      -  uses pkg/therm_seaice and pkg/bulk_forcing
975    
976    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
977    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
978      when using P-coordinate; only implemented for atmospheric config.
979    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
980      NOTES: requires option NONLIN_FRSURF to be "#define".
981    o update advect_xz/results/output.txt (left from checkpoint44g_post)
982    
983    checkpoint47b_post
984    Merging from release1_p9:
985    o pkg/seaice
986      - removed GOTO's and added taf directives
987      - double precision constants to reduce the g77 (Linux)
988        to F77 (SGI) differences reported in release1_p8
989    o tools/genmake
990      - added SGI options
991    o verification/testscript
992      - updated to that of checkpoint47a_post
993    o verification/global_ocean.90x40x15/input/eedata
994      - modified for SGI f77 compatibility
995    o verification/lab_sea
996      - added description of sea-ice model
997      - added missing matlab routines
998      - added test of thermodynamics parallelization
999    
1000    checkpoint47a_post
1001    o new pkg: aim_v23
1002     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1003       for now, keep the same surface forcing as before.
1004     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1005     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1006     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1007    o add diagnostic of surface correction term in monitor output
1008    
1009    o bulk_force and therm_seaice
1010    - Two packages:  bulk_force (Bulk forcing)
1011      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1012    - Earlier integration from Stephaine Dutkiewicz
1013      and Patrick Heimbach.
1014    - Two ifdef statements for compile time,
1015       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1016    
1017    checkpoint47
1018    differentiable version of checkpoint46n_post
1019    o bug fix in quasihydrostaticterms
1020    o * "clean" adjoint code (in terms of extensive recomputations)
1021        can now be obtained for all GMREDI options (i.e. for
1022        - GM_VISBECK_VARIABLE_K
1023        - GM_NON_UNITY_DIAGONAL
1024        - GM_EXTRA_DIAGONAL
1025        - GM_BOLUS_ADVEC )
1026      * However, wrong gradient check problem remains unsolved.
1027      * New CPP options have been introduced for different
1028        tapering schemes
1029    o external_fields_load now part of differentiation list
1030    o pressure needs multiple storing;
1031      would be nice to have store_pressure at beginning or
1032      end of forward_step, e.g. by having phiHyd global (5-dim.)
1033      (NB: pressure is needed for certain cases in find_rho,
1034      which is also invoked through convective_adjustment).
1035    o recomputations in find_rho for cases
1036     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1037    o #define ATMOSPHERIC_LOADING should be differentiable
1038    o ini_forcing shifted to begining of initialise_varia
1039    o Incorporating QNVS line search routines into MITgcm
1040      (this is separate code, and therefore not under pkg)
1041      lsopt/, optim/
1042    o Updated verification/carbon/
1043      - #define GM_VISBECK_VARIABLE_K
1044      - GM_taper_scheme    = 'ldd97'    
1045    
1046    checkpoint46n_post
1047    Merging from release1_p8:
1048    o verification/natl_box:
1049      updating new external_fields_load routine
1050    o New package: pkg/seaice
1051      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1052      The sea-ice code is based on Hibler (1979-1980).
1053      Two sea-ice dynamic solvers, ADI and LSR, are included.
1054      In addition to computing prognostic sea-ice variables and diagnosing
1055      the forcing/external data fields that drive the ocean model,
1056      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1057      The implied surface heat flux is then stored in variable
1058      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1059      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1060      non-local transport term.  Because this call precedes model
1061      thermodynamics, temperature under sea-ice may not be "exactly" at
1062      the freezing point by the time theta is dumped or time-averaged.
1063      N.B.: fairly large differences in accuracy occur across
1064            different platforms/compilers; comparison between
1065            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1066            generated output gives:
1067       T           S           U           V
1068      C D M    c        m  s        m  s        m  s        m  s
1069      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1070      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1071      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1072    
1073      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1074    o GAD:
1075      - generated new common blocks to account for call of
1076        same gad routines with differing traceridentities
1077        (needed to modify tracerIdentity indices in GAD.h)
1078      - generated separate common blocks for case useCubedSphereExchange
1079        (Department of Futurology)
1080      - parameter lists to gmredi_?transport: added tracerIdentity
1081      - added new key indices to tamc.h
1082    o external_fields_load:
1083      - added this routine to TAF list
1084      - needed to make some common blocks global and additional storing
1085        along the same lines as exf package (checkpoint_lev?_directives.h)
1086    o exf:
1087      updated external forcing package
1088      - bug fixes carried over from ecco-branch
1089        (missing OBCS_OPTIONS.h in two routines)
1090      - enable easy to use "no forcing".
1091      - added exf I/O for atmospheric loading
1092      - added exf I/O for runoff data
1093      - transfered scaling between exf <-> MITgcm to exf namelist
1094    o Adding new verification experiment global_with_exf.
1095      This verification experiment is almost identical to the
1096      global_ocean.90x40x15 experiment, except that it uses
1097      the exf (and cal) package instead of the
1098      external_fields_load routine (cf README file).
1099    
1100    checkpoint46m_post
1101    o modified testscript to return -- when there are no lines of "%MON" output
1102    o added new flag "quasiHydrostatic" for QH mode
1103      and new routine quasihydrostaticterms()
1104    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1105      New routine: mom_u_coriolis_nh()
1106    o fixed sign of non-hydrostatic metric terms in u and v equations.
1107      Depend on correct sign of gravitySign.
1108    o added work.pc* to .cvsignore in aim directories using ifc
1109    o introduced flag for controllin non-hydrostatic metric terms
1110    o removed gravitySign from PARM04
1111    o switched to g77/ifc from pgf77 in aim experiments
1112    
1113    checkpoint46l_post
1114    o made convective adjustment work with pressure coordinates:
1115     - changed the direction of k-loop in convective_adjustment.F for the
1116       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1117     - adjusted the reference pressure k-index in convective_adjustment.F
1118     - adjusted the convection condition in convect.F (in analogy to
1119       calc_ivdc.F)
1120     - convective_adjustment no longer computes anything on the halos
1121     - removed the warnings about negative salinity from find_rho.F and
1122       find_alpha.F; instead the new routine look_for_neg_salinity, called
1123       at the beginning of find_rho, find_alpha, and find_beta, does a
1124       check of the entire slice, if CPP-option
1125       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1126    checkpoint46l_pre
1127    
1128    checkpoint46k_post
1129    o fixed the verification/global_ocean.90x40x15 experiment:
1130     - new bathymetry (the world according to A., JMC, and M.)
1131     - new initial fields and forcing fields (*.bin files)
1132     - new POLY3.COEFFS (for the next release one should switch to a full
1133       equation of state: JMD95P or MDJWF)
1134     - fixed several errors and redundancies in the data file
1135     - experiment uses looped cells
1136     - added matlab directory with diagnostic scripts for plotting of output
1137    
1138    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1139     - read AIM physics parameters from a file (data.aimphys)
1140     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1141    
1142    checkpoint46j_post
1143    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1144    o move wVel computation at the end of the time step, in S/R integr_continuity
1145    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1146    o update timeave pkg for wVel diagnostic.
1147    checkpoint46j_pre
1148    
1149    checkpoint46i_post
1150    o Clean up AIM package (and keep the results unchanged):
1151      include CPP_OPTION and use IMPLICT NONE in all routines ;
1152      declare all the variables _RL ; use _d 0 for all numerical constants.
1153      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1154    
1155    checkpoint46h_post
1156    o cleaned up the use of rhoNil and rhoConst.
1157      - rhoNil should only appear in the LINEAR equation of state, everywhere
1158        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1159        and the dynamical equations are all divided by rhoConst
1160    o introduced new parameter rhoConstFresh, a reference density of fresh
1161      water, to remove the fresh water flux's dependence on rhoNil. The default
1162      value is 999.8 kg/m^3
1163    o cleanup up external_forcing.F and external_forcing_surf.F
1164      - can now be used by both OCEANIC and OCEANICP
1165    checkpoint46h_pre
1166    
1167     Added code to convert surface volume flux (fresh water) into
1168     a mass flux when using P coordinates in the ocean (OCEANICP).
1169     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1170    
1171    checkpoint46g_post
1172    o Include a new diagnostic variable phiHydLow for the ocean model
1173      - in z-coordinates, it is the bottom pressure anomaly
1174      - in p-coordinates, it is the sea surface elevation
1175      - in both cases, these variable have global drift, reflecting the mass
1176        drift in z-coordinates and the volume drift in p-coordinates
1177      - included time averaging for phiHydLow, be aware of the drift!
1178    o depth-dependent computation of Bo_surf for pressure coordinates
1179      in the ocean (buoyancyRelation='OCEANICP')
1180      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1181        Theta, Salinity, and Pressure in the parameter list. This routine is
1182        presently contained in find_rho.F. This routine does not give the
1183        correct density for 'POLY3', which would be a z-dependent reference
1184        density.
1185    o cleaned up find_rho
1186      - removed obsolete 'eqn' from the parameter list.
1187    o added two new verification experiments: gop and goz
1188      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1189    checkpoint46g_pre
1190    
1191    checkpoint46f_post
1192    o Enable tangent linear (forward mode) gradient checks:
1193      - extended active file handling to g_... files
1194      - added TANGENT_SIMULATION to theSimulationMode
1195      - extended grdchk package accordingly
1196    o added tangent linear setup in verification/carbon/code_ftl
1197    o added adjoint setup in verification/front_relax/code_ad
1198    
1199    checkpoint46e_post
1200    o Added new equation of state -> MDJWF
1201      - EOS of McDougall et al., 2002, JAOT, submitted
1202      - caveat: the equation of state is only valid for a smaller (more
1203        realistic?) range of values than JMD95P/Z and UNESCO
1204      - added masks to the calculation of pressure in store_pressure
1205      - added more check values for density in check_eos (ini_eos.F), some of
1206        the old check values are out of the range of the MDJWF-eos, so don't
1207        expect perfect matches for those
1208    checkpoint46e_pre
1209    
1210    checkpoint46d_post
1211    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1212      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1213      case of pressure coordinates. eosType='JMD95Z' in
1214      combination with buoyancyRelation='OCEANICP' now causes an error.
1215    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1216      in find_alpha/beta.
1217    checkpoint46d_pre
1218    
1219    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1220      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1221    
1222    checkpoint46c_post
1223    o Changes necessary for ocean in p-coordinates
1224     -  Added new buoyancy relation = 'OCEANICP'
1225     -  Added new parameters = gravitySign (this used to be contained inside
1226        the factor dRdZ which I added when we first switched to R coordinates).
1227     X GM/Redi is not compatible (yet)
1228     X bottom drag and no-slip need to be debugged.
1229    checkpoint46c_pre
1230    
1231    checkpoint46b_post
1232    o Added new equation of state -> JMD95Z and JMD95P
1233      - EOS of Jackett and McDougall, 1995, JAOT
1234      - moved all EOS parameters into EOS.h
1235      - new routines ini_eos.F, store_pressure.F
1236    o Added UNESCO EOS, but not recommended because it requires
1237      in-situ temperature (see JMD95)
1238    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1239      unesco.f to be used with POLY3
1240    checkpoint46b_pre
1241    
1242    checkpoint46a_post
1243    o Added (atmospheric) pressure loading
1244      - new field in FFIELDS.h, etc...
1245      - new cpp flag ATMOSPHERIC_LOADING
1246    o Changed hFacC to _hFacC in calc_phi_hyd.F
1247    o Added SHORTWAVE_HEATING to some files for consistency
1248    checkpoint46a_pre
1249    
1250    checkpoint46
1251    further merges from release1_p5
1252    o new ctrl package
1253      - adopted from ECCO environment to enable optimization
1254      - added Eliassen Palm fluxes to controls
1255    o added Eliassen Palm flux controls to gradient check package
1256    o cost package
1257      - Compatible with new ctrl package
1258      - added Eliassen Palm cost hooks
1259      - modif's of existing cost functions
1260    o Adjoint-related bug fixes in kpp:
1261      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1262      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1263    o autodiff package
1264      - flow directives:
1265        + new for S/R do_the_model_io
1266        + enhanced for S/R checkpoint
1267        + new gmredi.flow
1268      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1269        disable adcommon.h/g_common.h by default.
1270      - fixed problem for adjoint of global_max
1271    o modified verification/carbon/
1272    o New setup for adjoint of global_ocean
1273    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1274    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1275    o incorporated hooks for sponge layer code (external_forcing.F)
1276    
1277    checkpoint45d_post
1278    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1279    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1280      (affects plume_on_slope "cg2d" output)
1281    o add new parameter deltaTfreesurf for free-surface time stepping
1282    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1283    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1284    o change phiMin in exp1 (to agree with documentation)
1285    o add new flags:
1286     - T,S forcing inside/outside Adams-Bashforth
1287     - turn off temp,salt advection and/or forcing
1288     - for each tracer, define internal flag for multiDimAdvection & A-B
1289    o monitor: change definition of KE to check conservation of Energy
1290    
1291    checkpoint45c_post
1292    o Removed f90 comments ("!")
1293    o Modified initialisations to enable exf package for MITgcm
1294      (without invoking ECCO_PACKAGE).
1295    o modifications to gradient check package (Martin Losch)
1296      - enable centered differences
1297      - modified format of standard output
1298    
1299    checkpoint45b_post
1300    o cleaned exchange calls in cg2d
1301    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1302    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1303      to configure barotropic setup (Martin Losch)
1304    o moved some initialisations within bi,bj loop in dynamics
1305      (TAF flow dependency)
1306    o in initialise_varia, moved call packages_init_variables
1307      before convective_adjustment_init
1308      (corresponding adjustment of TAF tape initialisation).
1309    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1310    
1311    checkpoint45a_post
1312    o compute Rho over the whole domain (extend iMin,jMin indices)
1313    o specific exchange for X-slice domain (case Ny=1)
1314    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1315    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1316    
1317    checkpoint44h_post = checkpoint45
1318    o Fix to restore differentiability:
1319      place at which packages_init_variables is called in
1320      initialise_varia is crucial for reverse control flow.
1321    o modifications in GMRedi to enable stable adjoint
1322      (corresponding modif's in thermodynamics, dynamics)
1323    o added missing hook for sponge layer code in external_forcing
1324    o modified test cost functions
1325    o storing in gad_advection (plus removal of write(0,*)!
1326    o missing headers TR1.h added in convective_adjustment routines
1327    o errorMessageUnit set non-equal zero in eeboot
1328      (conflict on some platforms, e.g. IBM SP3)
1329    o modified carbon verif.
1330    
1331    checkpoint44h_pre
1332    o vertical grid option: allow to put the Interface at the middle between
1333      2 cell-centers ; replace delZ in pkg/kpp by drF.
1334    o GM Advective form: Tracers are advected using the residual transport (=
1335      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1336    
1337    checkpoint44g_post
1338    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1339      results) ; ifdef missing in thermodynamics.F
1340    
1341    checkpoint44f_pre,checkpoint44f_post
1342    o added PTRACERS package
1343      This allows an arbitrary number of passive tracers to be integrated
1344      forward simultaneously with the dynamicaly model.
1345      + Implemented so far:
1346        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1347        - I/O and checkpointing
1348        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1349      + Not implemented so far:
1350        - KPP
1351        - OBCS
1352      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1353        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1354        line in data.pkg.
1355      + This package is disabled by default since it increases storage.
1356    
1357    
1358    o testscript: added -cleanup option
1359    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1360                 b) enable to filter 2D fields.
1361    
1362    checkpoint44e_pre,post
1363    o re-wrote convective adjustment to use pre-calculated weights
1364      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1365      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1366      Original calls to convect() still in place.
1367    
1368    chkpt44d_pre,post
1369    o added missing EXCLUDE_MONITOR flags
1370    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1371      (incompatible typ in MIN/MAX expressions caused problems
1372      on IBM SP3)
1373    o in genmake added variable MAKEDEPEND
1374      plus resetting for case SunOS
1375    o added timer_stats.c routine for IBM SP3
1376    o removed variables in dynamics
1377    !!! I forgot to create tag chkpt44d_pre !!!
1378    !!! But chkpt44d_pre = chkpt44c_post    !!!
1379    
1380    o real fresh water flux implemented with non-linear free-surface.
1381    
1382    chkpt44c_pre,post
1383    o few fix (mask in shap_s2, EmPmR in external_field_load,
1384      USE_NATURAL_BCS in solve_for_P);
1385    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1386    
1387    checkpoint44b_pre/_post
1388    o merge of relevant stuff from the ecco-branch:
1389      - genmake: removed $S64 overwrite for case SunOS
1390      - pkg/exf: update and corrections for field swapping and obcs
1391      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1392                  harmonized between ECCO and MITgcm
1393      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1394                      updated checkpointing_lev... lists for obcs
1395      - model/src: minor changes in forward_step, plot_field
1396                   added directive for divided adjoint in the_main_loop
1397      - pkg/mdsio: added mdsio_gl_slice
1398    
1399    o check parameters & config (chkpt44a_pre,post)
1400    o OBC and NonLin_FrSurf.
1401    
1402    checkpoint44
1403    o fix bug in mom_vi_del2uv
1404    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1405    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1406    o update AIM experiments (NCEP input files)
1407    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1408    o added some stuff for AD
1409    
1410    checkpoint43
1411    o added two new advection tests
1412    o added global 4x4 degree ocean test
1413    o added test of H&S94 with free surface on cube
1414    o some final mods for gradient check, adjoint,...
1415    
1416    checkpoint42
1417      Fixed AD-related problems:
1418    o Store directives up-to-date with re-arranged Adams-Bashforth
1419      (mainly thermodynamics.F)
1420    o New store directives for multi-dim. advection schemes
1421      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1422      * new common block and key passkey
1423      (mainly gad_advection.F)
1424    o Modified store directives for split of dynamics/thermodynamics
1425      for the case ALLOW_KPP
1426    o Cleaned argument list for timestep_tracer.F
1427    
1428    checkpoint41
1429    o re-formatted/added comments in prologues of key subroutines
1430      to work with protex
1431    
1432    checkpoint40
1433    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1434    o added FLT (floats) package from Arne along with demo. experiment
1435    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1436      implementation of forward-in-time forcing terms
1437    o more mods for non-linear free-surface including new variable
1438    o modified multi-dim method to work on cube
1439    o bug fix in KPP (from DM)
1440    
1441    checkpoint40pre9
1442    o added DST advection schemes
1443    o fix MPI bug on SGI's
1444    o modifications for non-linear free-surface
1445    o fixed conditionals for fixed flow/passive tracer only mode
1446    o added tension/strain form of stress tensor
1447    o changes to commenting of arguments for TAF/TAMC
1448    o added/updated many matlab scripts
1449    o added multi-dimensional advection method for tracers
1450      
1451    checkpoint40pre8
1452    o new package rw/
1453      Added method for dumping intermediate local arrays:
1454      mdsio_writetile - same as mdsio_writefield except works from inside
1455                        bi,bj loop
1456      mdsio_writelocal - same as mdsio_writetile except works for local
1457                         arrays
1458      write_local_r? - higher-level wrapper for mdsio_writelocal
1459      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1460      Example given at end of mom_vecinv.F that dumps some local arrays.
1461    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1462      control flux-form versus vector invariant code.
1463      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1464      or genmake -DISABLE ...
1465    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1466      (additional storing is now needed for case vecinv;
1467      currently nothing implemented to switch this storing off
1468      in case fluxform is used since no CPP flag available).
1469    
1470    checkpoint40pre7
1471    o bug fix in dynamics.F
1472      calc_viscosity called before k=1,Nr loop.
1473    o added some #ifdef's ALLOW_PASSIVE_TRACER
1474    o cleaned initialisations in ctrl_map_ini
1475      related to TAF
1476    
1477    checkpoint40pre6
1478    o split dynamics into thermodynamics & dynamics
1479    o corresponding split of calc_diffusivity into
1480      calc_diffusivity, calc_viscosity
1481      (kpp_calc_diff, kpp_calc_visc).
1482    o Added diffkr, kapgm to control variables
1483    o bug fix in gmredi_slope_limit for ldd97
1484    
1485    checkpoint40pre5
1486    o proper initialization of Adams-Bashforth time stepping
1487      + uses forward step for very first step of model (iter=0)
1488    o re-generated *all* output since almost all output is modified by this
1489      change (sorry but we've been putting this one off for about 2 years)
1490      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1491        *not* regenerated since they are already out of date and I don't
1492        want to create the impression that they are suddenly working.
1493    o removed KAP stuff for DEC's
1494    o modified/added many .cvsignore files in */code and */input
1495    o added new expt "solid-body.cs-32x32x1"
1496      + this uses an alternative form of ini_curvilinear_grid.F which
1497        is not necessarily any better than the current one...
1498    
1499    checkpoint40pre4
1500    o added re-initialisations of utrans,vtrans,rtrans in
1501      calc_common_factors which are crucial for TAF.
1502    o extended iMin,jMin range for calc_common_factors,
1503      calc_diffusivity
1504    o added option ALLOW_PASSIVE_TRACER
1505    o a few minor updates and fixes
1506    
1507    checkpoint40pre3
1508    o created calc_gtr1.F for gad package
1509    o split the_main_loop and re-introduced forward_step
1510    o some recomputations of nIter0 for TAMC
1511    
1512    checkpoint40pre2
1513    o Updated to latest branch of AJA, JMC
1514    o Added gradient check package
1515    o Added routines for passive tracer handling
1516    o Added carbon sequestration sensitivity experiment
1517    
1518    checkpoint39
1519     o Modifications and fixes to support TAMC
1520       (mainly missing or wrong directives)
1521     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1522       in addummy_in_stepping
1523     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1524     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1525     o Included following packages:
1526       cal: calendar
1527       exf: external forcing
1528       ecco: essential routines to control use of cal, exf
1529             (NB: this is not the full ECCO environment)
1530     o disabled some packages by default in genmake
1531    
1532    checkpoint38
1533     o see notes_c37_adj.txt
1534     o corrected wrong layer index in external_forcing_t
1535     o replaced the_main_loop/forward_step by the_main_loop
1536     o removed forceoutput from write_state
1537       (replaced criteria for initial/final state)
1538     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1539    
1540    checkpoint37
1541     o mdsio.F routine split and packaged in pkg/mdsio
1542       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1543        used unless genmake -disable=mdsio)
1544     o allow a more precise surface-geopotential gradient for the atmosphere
1545       taking into account the change in space of Alpha (=1/rho) at the surface.
1546     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1547       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1548     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1549       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1550       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1551     o Time-Average diagnostics defined as a pseudo package "timeave".
1552     o pickup files : old pickup (before c35) did not work with new code (c35
1553       and after) unless activating 2 commented lines in initialise-varia.
1554     o Non-Hydrostatic pickup file Pb fixed.
1555     o bug with Rigid-lid version (since c35) fixed.  
1556    
1557    checkpoint36
1558     o implement Crank-Nickelson barotropic time-stepping
1559     o recover Time-Average diagnostics
1560     o fix Pb in checkpoint (PR#19)
1561     o AIM become a standard package ; clean unused CPP_kees
1562    
1563    checkpoint35
1564     o subtantial rewrite of dynamics.f
1565     o allows staggered time-stepping
1566     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1567     o added bottom drag (linear + quadratic)
1568    
1569    checkpoint34
1570     o Modified exchange routines for correct reverse simulation.
1571     o Added verification output to comply with bug fix in impldiff.F
1572       as of c33 (exp2, natl_box).
1573     o Corrected store directives in dynamics.F
1574     o Corrected array boundaries in impldiff.F
1575     o Corrected array dimensions in gmredi.
1576       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1577     o Added routine GLOBAL_SUM_INT to global_sum.F
1578     o Added mdsio_gl.F for ECCO purposes.
1579    
1580    checkpoint33
1581     o Fixed bug in lower BC in impldiff.F
1582     o Fixed confusion about units of forcing arrays in FFIELDS.h
1583       namely Fu,Fv,Qnet,Qsw,EmPmR:
1584       - Removed verification/natl_box/code/external_fields_scale.F
1585         (did not differ from that in model/src)
1586       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1587         (see FFIELDS.h for description)
1588       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1589         kpp_calc.F and kpp_transport_t.F
1590       - Removed model/src/external_fields_scale.F and calls to it
1591       - verification/natl_box uses flux data with "atmospheric" sign so
1592         a special version of external_fields_load.F is used to
1593         change the data as it's read in. This way, the arrays
1594         have the right units and signs at all times tha a user could
1595         possibly use them.
1596     o Corrected genmake to delete a temporary file during configuration
1597    
1598    checkpoint32
1599     o Scaling of forcing fields moved from external_forcing.F to
1600       external_fields_scale.F, called directly after loading fields.
1601     o Surface relaxation terms added to surface tendency fields in
1602       extra subroutine.
1603     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1604       fields.
1605     o Changes in GMRedi to comply with packaging structure.
1606     o Modifications and bug fixes in KPP package.
1607     o Verification experiment for KPP added (verification/nat_box/)
1608    
1609    checkpoint31
1610     o Packages interface brought in line with defined standard
1611       -> new routines packages_...F
1612       -> changes in initialise_fixed.F, initialise_varia.F
1613       -> enables initialisation interface for ECCO package
1614     o Rescaling of external forcing fields immediately after read
1615       (removed from external_forcing.F)
1616       -> new: surface_fields_scale.F
1617       -> affects ini_foorcing.F, external_fields_load.F
1618     o Computation of surface tendencies before tendency updates.
1619       -> new: external_forcing_surf.F
1620     o Change of variable names useGMRedi, useKPP, useECCO
1621     o Further changes in dynamics.F, impldiff.F for TAMC
1622     o Tested for experiments 0, 2, 4.
1623       - not yet tested for GMRedi.
1624       - not yet tested for KPP.
1625    
1626    checkpoint30
1627     o Updates for OBCs
1628     o New experiment for test OBCs (internal_wave)
1629     o New output.txt in verification/exp4/results/
1630     o Updates for KPP: calculation of viscosity corrected, new variables
1631       kpp_dumpFreq and kpp_taveFreq
1632     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1633       and entry for T90 in genmake
1634    
1635    checkpoint29
1636     o packaged KPP and GM/Redi
1637    
1638    checkpoint28
1639     o Corrected initialization of hFacMin for difference vertical coordinates
1640     o Modified calculation of partial cell thickness to more robust algorithm
1641     o config_summary.F: replaced write_1D_... by write_0D_...
1642       read_write.F: added subroutines write_0D_...
1643     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1644       included some initialisations required for TAMC.
1645     o routine calc_isoslopes: modified sqrt computation to make it
1646       differentiable for zero argument.
1647     o routines dynamics, impldiff:
1648       included store directives and tape key computations required for TAMC.
1649     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1650    
1651    checkpoint27
1652     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1653       formulation works properly with variable resolution.
1654     o restructured the calling tree between the_model_main() and dynamics()
1655     o split initialise() into initialise_fixed() and initialise_varia()
1656     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1657       in new routine ini_psurf()
1658    
1659    checkpoint26
1660     o moved some #ifdef in optional routines to encompass everything
1661       except the argument declarations. This was using up some memory.
1662     o fixed macros like _ADT to work with both versions of Linux cpp
1663     o cleaned up some unused and uninitialized variables
1664       (helps when debugging with strict compile options)
1665     o split up CPP_EEOPTIONS.h into options and macros
1666       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1667     o patch for 2 processor JAM mode
1668    
1669    checkpoint25
1670     o updates for OBCs and NH
1671     o dramatically reduced memory usage
1672     o added "JAM" routines for use on Artic network
1673     o parameterization of convection by implicit vertical diffusion
1674     o added a diagnostic of convective index
1675     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1676       (this is was partly for OBCs and NH but also in anticipation of
1677        an explicit free-surface option)
1678     o initial state input files for U and V
1679    
1680    checkpoint24
1681     o Removed some spurious "REAL"s
1682     o Updated KPP to latest version from JPL
1683     o Added a COS(latitude) in horizontal viscosity
1684    
1685    checkpoint23
1686     o Added del^4 diffusion for salt and temperature
1687     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1688    
1689    checkpoint22
1690     o Made many small changes: implicit none, format(i5), etc...
1691     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1692    
1693    checkpoint21
1694     o Introduced new I/O package that supports direct-access records (mdsio.F)
1695     o Split-up mid-level I/O routines
1696     o Updated input data for experiments 0,1,2,4 and 5
1697     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1698    
1699    checkpoint20
1700     o Tidied up open-boundaries some more
1701     o Added non-hydrostatic code
1702     o Fixed some input data
1703     o Modified MPI start-up to work in "coupled" context.
1704    
1705    checkpoint19
1706     o Tidied up directory structure for verification experiments.
1707     o Added new code for open boundaries.
1708     o Corrected advective terms near boundaries.
1709     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1710     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1711     o Split default parameters out of ini_parms.F into set_defaults.F.
1712    
1713    checkpoint18
1714     o Further changes for optional code generation with
1715       CPP - ugh!
1716    
1717    checkpoint17
1718     o Beginning to incorporating modularity
1719       for supporting atmos. and ocean configs.
1720     o Small changes for TAMC complinace
1721     o New ultra simple test case. Barotropic box
1722       configuration "exp0".
1723    
1724    checkpoint16
1725     o Minor changes to exchange routines to support
1726       accumulation in reverse mode. Adjoint of an
1727       assignment is an addition.
1728     o Changes to support compilation by TAMC (LR(1)
1729       syntax) and by g77 under Linux ( 72 character
1730       limit ).
1731    
1732    checkpoint15
1733     Rewrote exchange routines to allow
1734     o General tile <-> tile connectivity.
1735     o TAMC reverse mode flag ( is this really needed? )
1736     o Variable width overlap and exchange region widths.
1737     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1738       shmput/shmget, VIA, SYSV shmem and every other cool
1739       communication method.
1740    
1741    checkpoint14
1742     Consistent isomorphism chages made. These allow dynamical core
1743     to support both pressure and meters as a vertical coordinate.
1744    
1745    checkpoint13
1746     Release which corrects global_max problem and a couple
1747     of KGM time-averaging diagnostic errors. Also contains
1748     a double-gyre experiment setup as well as the baseline
1749     4 degree global template. The double gyre template is
1750     organised to allow it to be applied automatically to
1751     the baseline configuration.
1752    
1753    branch-point-rdot
1754     A few tidy-ups have been made bt the real point of this
1755     check-point (excuse the pun) is to allow a branch to be
1756     made for the purposes of adding the rDot alterations.
1757     I don't want to commit the rDot to the main-trunk until
1758     we've actually tested it...
1759    
1760    checkpoint12
1761     Tidy up and added generic genmake script (formerly
1762     configure script).
1763     Released to testers.
1764    
1765    checkpoint11
1766     Re-arranged initialise() and introduced ini_vertical_grid()
1767     and ini_masks_etc().
1768    
1769  checkpoint10  checkpoint10
1770   Introduced the configure script.   Introduced the configure script.
1771   Separated out the diags package.   Separated out the diags package.

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