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revision 1.9 by adcroft, Thu Jul 2 14:20:04 1998 UTC revision 1.319 by heimbach, Fri Jul 2 17:59:46 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint54
7    checkpoint53g_post
8    o prepare splitting of thermodynamics: store convect.counter in common block
9    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
10      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
11    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
12    o new parameter "nShapS": allow to treat differently S from T (nShapT)
13    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
14    o restore adjointability
15    
16    checkpoint53f_post
17    o modifications that affect AIM experiment results (update output.txt):
18      - no advection of S at top interface Nr (pkg/generic_advdiff)
19      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
20    o AIM pkg:
21      - include stability function into surf.Flux derivative relative to Tsurf
22      - calculate clear-sky radiation & surface temp. change (for diagnostics)
23    
24    checkpoint53e_post
25    o merged cylindrical coord configuration
26    o added rotating_tank experiment
27    checkpoint53e_pre
28    
29    checkpoint53d_post
30    o faulks upgraded: re-generate output.txt that have changed:
31       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
32    o Added Bryan and Lewis, 1979, vertical diffusivity profile
33    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
34    o added Sadourny discretization of Coriolis
35      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
36      - re-enabled use of omega3 (useAbsVorticity)
37    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
38      vector-invariant equations
39      - note: does *NOT* yet use same variable visc. for no-slip BC's.
40    o recoded the lateral boundary conditions for non-hydrostatic w, this time
41      hopefully without new bugs
42      - still to do: biharmonic friction for non-hydrostatic w
43    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
44    o regenerated output for global_ocean_ebm (using -ieee)
45    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
46      of mom_common/
47      - simple re-arrangement of instructions within computing loop
48    checkpoint53d_pre
49    
50    checkpoint53c_post
51    o new version of coupler for AIM+thSIce and Ocean models
52     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
53     - land: change Evaporation of snow
54     - aim with thSIce: fix bug in snow-precip.
55    o changes to calc_gw.F
56     - bug fix for w^2 term near the bottom boundary
57     - (hopefully) improve the lateral slip boundary condtions for use with
58        partial/looped cells
59      - because the bug fix changes two verification experiments anyway (exp5
60        and plume on slope), change the lateral boundary condition from half slip
61        to the value of no_slip_sides
62    o ebm package wasnt quite up to the parallel task. Fixed that.
63    o Adjoint of EBM package + verification
64      * TLM OK
65      * ADM not sufficient accuracy yet (needs further testing)
66    
67    checkpoint53b_post
68    o Commiting new energy balance model to repository
69      * package is pkg/ebm
70      * verif. is verification/global_ocean_ebm
71      * references are in ebm_driver.F
72    C      * X. Wang, P. Stone and J. Marotzke, 1999:
73    C        Global thermohaline circulation. Part I:
74    C        Sensitivity to atmospheric moisture transport.
75    C        J. Climate 12(1), 71-82
76    C      * X. Wang, P. Stone and J. Marotzke, 1999:
77    C        Global thermohaline circulation. Part II:
78    C        Sensitivity with interactive transport.
79    C        J. Climate 12(1), 83-91
80    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
81    C        Destabilization of the thermohaline circulation
82    C        by atmospheric eddy transports.
83    C        J. Climate 7(12), 1870-1882
84    o Will need long integration testing.
85    checkpoint53b_pre
86    
87    o created pkg/mom_common in preparation for variable viscosity code
88    o renamed and split ini_mnc_io
89    o pkg/land: only liquid water can diffuse or run-off
90    o AIM using land: soil wetness availability account for snow
91    o added printMapIncludesZeros to EEPARMS namelist
92    
93    checkpoint53a_post
94    o restore TAMC compatiility for exf_constants.h
95      (no usage of _d in .h)
96    o Additional storing in KPP in an attempt to fix
97      TAMC problem with adjoint of KPP code.
98      (no success...)
99      Identical code works fine with TAF.
100    o Fixed verification/natl_box_adjoint experiments.
101      Initial conditions for Experiments 4 and 5 are now
102      set to "SEAICE_initialHEFF=0", which is more reasonable,
103      and hence gives results closer to that of Experiment 2.
104      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
105    
106    checkpoint53
107    o stable checkpoint with up to date adjoint
108      TLM tests only run for 1st grdchk at the moment. Its unclear if
109      this is a code problem or a problem with resetting code for g_
110      variables that is being autogenerated wrong.
111      Otherwise:
112       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
113       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
114         are both still in chaos following their security messes.
115    
116    checkpoint52n_post
117    o various build (mostly genmake2) changes including:
118      - ability to build/run more easily within Cygwin and MacOS X
119      - more complicated Makefiles with a stronger dependence on Gnu Make
120    o pkg/seaice modifications
121      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
122        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
123        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
124      - changed proxy for geostrophic velocity and updated
125        verification/lab_sea/results/* accordingly
126      - removed ADI dynamic solver from pkg/seaice
127      - replaced all occurrences of 1/CSTICE or 1/CSUICE
128        they caused a segmentation fault under certain circumstances
129      - removed unused field WATR
130    o bug fix in exf-package:
131      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
132         now reflect that.
133    o small fixes in the cal-package:
134      - set reference date to first of January for the 'model'-calendar
135      - failing of cal_CheckDate in cal_FullDate now actually results in a
136        warning
137    o small modifications in exf-package to increase flexibility:
138      - change climtempfreeze from a constant to a runtime parameter that
139        is specified in data.exf_clim (default = -1.9)
140      - introduce runtime parameter windstressmax (default = 2.0) that is
141        specified in data.exf
142    o fix in pkg/thsice:
143      - update Evap (Tsf changes) to be consistent with Latent heat flux
144      - maintain snow precipitation unchanged (even if Tsf >=0).
145     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
146    
147    checkpoint52m_post
148    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
149      this does not change any of the results, because myIter=0 in swfrac always
150      lead to jwtype=2 (the default anyway), but the call makes little sense
151      as a default
152    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
153    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
154      atmospheric model (AIM) to use it ; add a "slab ocean" component.
155    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
156    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
157    o extending useSingleCpuIO option to work with new exch2 I/O format
158      - old-style, missing-tile I/O is still accessible by defining CPP
159        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
160    o monitor package can write to NetCDF files and/or STDOUT
161    o fix re-definition bug in MNC_GRID_INIT_ALL()
162    o doc/api_reference added
163      - a framework for building an API Reference Manual using all
164        the "protex" comments embedded in the code
165      - see pkg/generic_advdiff, pkg/mnc for examples
166    o MNC:
167      - make myThid the last argument for all subroutines
168      - new default for the grid files: NO halos
169      - add useMNC and other run-time flags
170      - separate per-file-group handling of the unlimited dimension
171      - early initialization of MNC w/ flags read at the eeboot stage
172        and lookup tables set in initialize_fixed
173      - write all MNC output to a freshly-created directory
174    o thermodynamics sea-ice (thsice) is now tested with testreport.
175    o test exp. advect_cs: use the standard cs32 grid ; update output.
176    o Added functionality to grdchk:
177      pick global i,j,k position (or nearest wet) where to perform check.
178    
179    checkpoint52l_post
180    o new land formulation:
181      a) use ground enthalpy as prognostic variable to ensure exact
182         energy conservation.
183      b) account for water temperature and for latent heat of freezing
184         in all processes (rain, run-off, ground storage)
185      c) compute surface and ground temperature implicitly.
186    o aim_v23 modification for new land model:
187      a) Treat separately land / ocean / sea-ice surface fluxes
188         to allow implicit computation of land & sea-ice surface temp.
189      b) add snow precipitation.
190    checkpoint52l_pre
191    
192    o fix problem (when 1 tile is empty) in min/max monitor.
193    o fix bug in timeAve (u,vZetatave in common block)
194    o no restoring terms under ice for pkg/seaice
195    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
196    o bug fix for pkg/seaice pickups
197    o change MNC call locations and add coordinate attributes
198    o mask vorticity at the corner ; affects global_ocean.cs output
199    o fix ini_curvilinear_grid ; test CS experiments with mpi
200    o aim.5l_cs: modify sea-ice fraction input file ; update output
201    o exf: Adding simple range check routine for exf fields after read
202    
203    checkpoint52k_post
204    o removed top-level directory "diags"
205      - we migrated these functions to pkg/timeave a long time ago
206    o fixed bug introduced in pkg/monitor
207    o accuracy ctrlprec = 32 insuffient for gradient checks using
208      averaged fields (I/O via cost_averages)
209      -> use ctrl.h in active_file*.F to control I/O precision.
210    o paramter list of CALL ADTHE_MAIN_LOOP
211    o added initial do_the_model_io to ecco
212    o set all ...Freq to zero after cost_final
213      taveFreq, dumpFreq, pChkptFreq
214    o MAIN and ECCO differentiability restored
215    
216    checkpoint52j_post
217    o fix nchklev in tamc.h for global_ocean...
218    o Bringing flow and store directives up-to-date
219    o Really weird thing!
220      call do_the_model_io from the_main_loop with parameters
221      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
222      TAF places a faulty re-call of initialise_varia
223      after cost_final call which should not be there!
224    checkpoint52j_pre
225    
226    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
227      error messages
228    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
229    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
230      debug output
231    o modfied mdsio_writefield.F to handle non-global files under exch2
232    o update AIM Cubed-Sphere exp (aim.5l_cs):
233      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
234    o update AIM Equatorial Channel exp:
235      use standard aim_v23 pkg and change the SST fields to be more realistic.
236    o globalFile now works with exch2
237    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
238      mon_vort3.F to make exch2 friendly with >1 tile per cube face
239    o limit timeave output for hi-res integrations
240    
241    checkpoint52i_post
242    o removed CPP_EEOPTIONS.h from verification/*/code
243    o updated the tiling for global_ocean_pressure
244    checkpoint52i_pre
245    
246    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
247      the old pkg/aim).
248    
249    checkpoint52h_pre
250    o shortened offending lines in exch2_send_rx?.template
251    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
252    o genmake2: add build & execute test for NetCDF code
253    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
254      old grid files, moved CPP_EEMACROS.h to pkg/exch2
255    o added useSingleCPUIO flag to monitor.F and mon_out.F
256    o added temporary hack for sea-ice dynamics on the cube:
257      metric terms are ignored and it is assumed that
258      there is no sea-ice on cube faces 1, 2, 4, and 5.
259    
260    checkpoint52f_post
261    o added exch2 cube routines to pkg/exch2
262    o modified hs94.cs-32x32x5 to use it
263    o added new grid files to hs94.cs-32x32x5
264    checkpoint52f_pre
265    
266    checkpoint52e_post
267    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
268      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
269    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
270      to work with implicit vertical advection and AB ;
271    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
272    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
273     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
274    checkpoint52e_pre
275    
276    o fix bug in impldiff when Nr=1 or Nr=2.
277    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
278    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
279    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
280      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
281    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
282    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
283    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
284    
285    checkpoint52d_post
286    o re-tiled many expts to allow comparison in multi-processor mode
287      - updated output accordingly
288      - changed hs94.128x64x5 to use intial T from file rather than use the
289        random number generator
290    o add infrastructure in model routines for fizhi and gridalt packages
291    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
292    o changes to permit hi-res, cubed-sphere, configuration
293      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
294      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
295      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
296        of surface winds for the cube
297      (A verification experiment, based on global_ocean.cs32x15, but with
298       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
299       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
300       complete with example surface forcing files and matlab scripts to look
301       at the output and compare it with that of global_ocean.cs32x15.)
302    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
303       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
304       to conform to the common rule.
305    o check-in the first version of the coupler + interfaces for multi-components
306       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
307       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
308       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
309       - ocean and atmos. share the same horizontal grid (no interpolation).
310       - exchanges between component and coupler is done in forward_step
311    o new verification experiment, cpl_aim+ocn:
312       coupled ocean - AIM atmosphere on cs32 grid.
313    
314    checkpoint52d_pre
315    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
316    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
317    
318    checkpoint52c_post
319    o Fixing OPTIONS files for use of exf:
320      - ALLOW_ECCO not needed
321      - ECCO_CPPOPTIONS.h should not be included from
322        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
323        as has been the case in the past
324      - All cal/exf related options are currently set in
325        single header file. Should remain so until we
326        agree on a consistent new policy.
327    o Removed all CPP options for cal package.
328      cal has no more CPP options.
329    o modified STOREs in GAD_ADVECTION
330    o corrected key comp. for passkey
331    
332    checkpoint52b_post
333    o new version: "thsice" of thermodynamic sea-ice pkg:
334     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
335     - modify fluxes but do not change theta directly;
336     - light cleaning of bulk_force pkg (still needed with thsice).
337     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
338       + output_thsice.txt to test thsice & bulk_force pkgs.
339    o put back grid & coriolis monitor output.
340    checkpoint52b_pre
341    
342    o call "do_the_model_io" at the beginning (=> dump initial state)
343    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
344    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
345      (need info on NUMBER_OF_PTRACERS)
346    o missing PTRACERS headers in some routines
347    o default tamc.h in pkg/autodiff supposed to crash
348      to ensure proper customization
349    
350    checkpoint52a_post
351    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
352      - moved surfaceTendencyTice from pkg/seaice to main code
353      - subroutine FREEZE_SURFACE now limits only surface temperature
354        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
355        => new output.txt for global_ocean.cs32x15 & global_with_exf
356      - keep the old version of FREEZE for backward compatibility;
357        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
358      - corresponding modifs for TAF directives
359    o added surface flux output variables to TIMEAVE_STATVARS
360    o time-averaged output for pkg/ptracers
361    o fix problem with ECCO-related divided adjoint
362      snapshot file was missing some ad-variables,
363      but no warning issued by TAF
364    
365    checkpoint52a_pre
366    o some bug fixes for #undef REAL4_IS_SLOW
367    
368    checkpoint52 = ecco_c52_e35
369    o after testing adjoints of checkpoint51u_post
370    
371    checkpoint51u_post
372    o this is the post-merge tag of the ecco-branch
373      (needs another clean checkout and re-testing)
374    o various natl_box_adjoint configs and results
375      but no input fields
376    o obcs adjoint not yet merged!
377    o adding ECCO global 1x1 and 2x2 degree configs
378    o updated/extended some store directives for seaice
379    o pkg/ecco now containes ecco-specific part of cost function
380    o top level routines the_main_loop, forward_step
381      supersede those in model/src/
382      previous input data.cost now in data.ecco
383      (new namelist ecco_cost_nml)
384    o in ctrl/ cleaned some cross-dependencies and updated CPP options
385    
386    checkpoint51t_post
387    o this is the pre-merge tag of the ecco-branch
388    
389    checkpoint51s_post
390    o cleanup: removed various obsolete #define-s
391    o pkg/grdchk
392      - renamed 'ph-grd 3' to 'grad-res'
393      - merged from ecco-branch
394        (remaining bug fixes for obcs gradient checks)
395      - additional high-precision output for testreport
396        (grep for 'precision_grdchk_result')
397    
398    checkpoint51r_post
399    o cleaned up or removed CPP_OPTIONS.h files
400    o updated results for some of the tests to reflect the new
401      optfiles (-ieee: -O0 instead of -O3)
402    
403    checkpoint51q_post
404    o cd_code:
405      - moved cd_scheme.F -> cd_code_scheme.F
406      - separate read_checkpoint from cd_code_ini_vars.F
407      - separated cd_code part from write_checkpoint
408      - updated AD_SOURCE, generated .flow
409      - added CD_CODE_VARS.h to the_main_loop
410      - Moving cd_code specific store dir.s to pkg/cd_code
411    o ctrl package totally restructured
412      - pack/unpack now optional and decoupled from
413        xx_/adxx_ I/O
414      - ctrl_pack/unpack cleaned
415        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
416      - confined inclusion of AD_CONFIG.h to where necessary.
417    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
418    
419    checkpoint51p_post
420    o create initial cd_code package
421      - WARNING: the initialization of fields within packages
422        is broken because INI_FIELDS (where READ_CHECKPOINT is
423        called) is called *before* PACKAGES_INIT_VARIABLES.
424        This seems to be backwards since
425        1) its important to initially zero the entire field including
426           the "halo" region
427        2) zeroing needs to be done *before* reading pickup info
428           and the pickup call might or might not happen in any
429           particular run
430      - this needs an overhaul for R2
431    o cleanup verification/*/code/GMREDI_OPTIONS.h
432    o cleanup testreport
433    
434    checkpoint51o_post
435    o bringing AD-related verif's up to date with genmake2
436      - carbon/
437      - global_ocean.90x40x15/
438      - hs.94.1x64x5/
439      - (front_relax/ )
440    o (more) consistent directory structure for AD-related verif.'s
441    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
442    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
443    o bug fix in find_alpha.F for MDJWF:
444      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
445        change rho -> rho-rhoConst
446      - replace call find_rho to find_rhonum
447    o initialisation of rFlx extended to full array (required by TAF)
448      and shifted to thermodynamics
449    o removed PTRACERS.h in ptracers routine
450    o added surfacetendencyPtr to S/R parameter list pracers_forcing
451    o Correcting initialisations for fVerU, fVerV.
452    o helping TAF to recognize dependency on kUp for
453      fVerU, fVerV
454    o Replacing delZ by delR in pkg/ctrl/
455    checkpoint51o_pre
456    
457    o undid all of cp51 pending some cleanups and discussion
458    o added the [#include "AD_CONFIG.h"] statement to all files that need
459       it for adjoint/tl #defines
460     o re-worked the build logic in genmake2 to support AD_CONFIG.h
461     o removed tools/genmake since it no longer works
462    
463    checkpoint51n_post
464    o modifications to make FREEZE flux visible to pkg/kpp
465      - moved surfaceTendencyTice from pkg/seaice to main code
466      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
467      - subroutine FREEZE now limits only surface temperature
468        (this means new output.txt for global_ocean.90x40x15,
469         global_ocean.cs32x15, and global_with_exf)
470    o added surface flux output variables to TIMEAVE_STATVARS
471    
472    checkpoint51n_pre
473    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
474    o added [#include "AD_CONFIG.h"] to all files that use the following
475      defines:
476      - ALLOW_ADJOINT_RUN
477      - ALLOW_TANGENTLINEAR_RUN
478      - ALLOW_ECCO_OPTIMIZATION
479    
480    checkpoint51m_post
481    o incorporating changes to get TAMC/TAF working in genmake2
482      - added new TAMC/TAF targets to the Makefile
483      - various cleanups related to package handling
484      - these changes should have no impact on the forward model
485    
486    checkpoint51l_post
487    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
488     - faster algorithm for cal_addtime.F
489     - higher precision arithmetic, where needed
490     - pkg/exf *startdate variables changed from calendar date to
491       model integration time
492    
493    checkpoint51l_pre
494    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
495    o enable to apply restoring on S & T only in a latitude band.
496    o update output (external_forcing_surf modif. change truncation errors)
497       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
498    
499    checkpoint51k_post
500    o change default to: useNHMTerms=.FALSE.
501     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
502       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
503     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
504        exp1, ideal_2D_oce
505     - change data file of oceanic exp (leave the results unchanged for now)
506       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
507    o set gravitySign automatically according to the vertical coordinate used
508      (and change sign: back to "logical" value: +1 when R increases downward)
509    o added an include barrier to the default CPP_OPTIONS.h and
510      removed the #include "PACKAGES_CONFIG.h" from it
511    o fix a bug in mom_fluxform (from chk51j_post)
512    
513    checkpoint51j_post
514    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
515    o adjusted some flow directives (dynamics, thermodynamics)
516    o added cubed-sphere case to test cost function
517    o heckpoint_lev?_directives.h now include
518      pkg-specific directives, whenever those are enabled.
519    o Moving pkg-specific flow directives to corresponding pkg
520      Moving pkg-specific differentiation list to corresponding pkg
521      Moving pkg-specific checkpoint-lev storing to corresponding pkg
522      ---> conventions are
523           - pkg_ad.flow
524           - pkg_ad_diff.list
525           - pkg_ad_check_lev?_dir.h
526    
527    checkpoint51i_post
528    o merge of the branch-genmake2
529      - knowingly breaks the older genmake
530      - automatic generation of all ALLOW_${PKG_NAME} defines
531      - new testreport supersedes older testscript
532    o large number of package inclusion and header cleanups
533    checkpoint51i_pre
534    
535    o new output for adjoin of global ocean vector invariant
536    o fix for checkpoint of thermodynamic seaice and bulk_force
537    o Steph gchem various cleanups
538    
539    checkpoint 51h_pre
540    o fixed some single quotes
541    o modify gchem pkg to be more versatile
542    o modifications to clean up dic pkg
543    o add pkg/cfc
544    
545    checkpoint51g_post
546    o provide links for ARPACK and ADM*TLM
547    o start removing verification/vero/
548    o update AD-related stuff
549      (in particular some IF-statements in model/src/ routines)
550    o adding to verification/global_ocean.90x40x15/ adjoint of
551      vector invariant setup
552    
553    checkpoint51f_post
554    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
555    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
556      of tracer Green's fucntions for ocean inversion project.
557    
558    checkpoint51f_pre
559    o Added on-the-fly spatial interpolation capability
560        "USE_EXF_INTERPOLATION" to pkg/exf.
561      - This is a temporary Cartesian-grid hack until
562        the super-duper ESMF coupler becomes available.
563      - See verification/global_with_exf/README for usage example.
564      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
565        flags and modified pkg/seaice accordingly.
566    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
567        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
568        non-local transport term.
569    
570    checkpoint51e_post
571    o pkg/mom_vecinv:
572      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
573      - add time-ave diagnostic of vorticity advection.
574    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
575    o atmospheric geopotential: - include water vapor effect;
576                                - use p^kappa in p* scaling.
577    o land pkg: read initial state from files.
578    o AIM : add stratospheric drag in the upper level
579    
580    checkpoint51d_post
581    o change function ILNBLNK (=> last non-blank char.) to return zero
582      (instead of the string length) when the string. char is empty
583    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
584    o modif's to restore TAMC compatibility
585      - avoid "_d" constructs in PARAMETER declarations
586      - avoid interrupting lines by comment lines
587    o Use cluster local disks for purely local I/O
588      vs. globally visible disks needed for ctrl stuff
589      (merged from ecco-branch)
590      - new active_file_loc... and mdsio_..._loc routines
591      - affected packages: autodiff, ctrl, grdchk, mdsio
592    
593    checkpoint51c_post
594    o introducing integer flag debugLevel
595      - debLevZero: suppress all output
596      - debLevA: standard
597      - debLevB: equivalent to current debugMode=.TRUE.
598    o introducing pathname variable mdsioLocalDir for mdsio
599      that can be specified at runtime
600      (relevant for cluster I/O to local disk)
601    `
602    >>>checkpoint51b_post
603    adjoint of ptracers
604    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
605    o extended state in checkpoint_lev?, etc.
606    o alternative ctrl/cost with tr1 or ptracer
607    o new comlev1_bibj_ptracers
608    o new ptracers.flow
609    o made ptracers_forcing same as external_forcing_s
610    o added verification for adjoint with ptracers
611      - adm. grdchk fail so far
612      - tlm. grdchk OK
613      - checked tapelev/comlev recomputations: OK
614    <<<checkpoint51b_pre
615    
616    checkpoint51a_post
617    o added code for biogeochemistry package
618      - new pkgs: dic, gchem
619      - new subroutine in ptracers
620    o modify code for biogeo packages
621      - in model/src and pkg/ptracers
622    
623    checkpoint51
624    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
625      - autodiff, ctrl, exf, grdchk, seaice
626      kept separate packages
627      - cost, ecco, obcs
628    o updating verification/internal_wave, verification/lab_sea
629      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
630    
631    checkpoint50i_post
632    o Preparing next differentiable checkpoint and sync
633      of MAIN vs. ecco-branch
634      - 1st step: this one is differentiable
635      - 2nd step: next(! not this) checkpoint will have updated packages
636                  from ecco-branch)
637    
638    checkpoint50h_post
639    o new package "land": provide surface BC for AIM.
640    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
641    o AIM: use true log-P extrapolation for near surface temp (= as in
642        F.Molteni paper) ; update aim.5l_cs output.
643    o New variable in PARM03 for more flexible pickups
644    o somewhat cleaned package initialisation sequence for
645      ctrl/ cost/ ecco/ in packages_... routines
646    
647    checkpoint50g_post
648    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
649      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
650      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
651        made the default because of faster convergence than ADI
652    
653    checkpoint50f_post
654    o exf totally restructured
655      - replaced all exf_set_ routines by one generic exf_set_gen.F
656        and made sure it's still differentiable
657      - split exf_getffields.F into new exf_bulkformulae.F
658      - exf_inscal_/exf_outscal_ suffixes consistent with field names
659      - updated adjoint/makefile and relevant verif. accordingly
660    
661    checkpoint50f_pre
662     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
663          + change Evap over land. (update aim.5l_cs output)
664     o added missing .cvsignores and made uniform across expts
665     o changed configuration of tidal_basin_2d expt
666     o added pkg/debug functions for tracing code in fatal crashes
667     o tidied pkg/monitor to use MONITOR_OPTIONS.h
668     o new fn in pkg/monitor to stop model if solution grows too big
669     o removed lots of single quotes from comments
670    
671    checkpoint50e_post
672    o make KPP work with PTRACERS
673     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
674       nearly a copy of kpp_transport_s
675     - there is no analogue to SurfaceTendencyS, so I have to use
676       gPtr(of the surface layer) instead
677    o add a new platform SunFire+mpi (SunFire 15000) to genmake
678    checkpoint50e_pre
679    
680    checkpoint50d_post
681    o change kpp output from multiple-record state files to single-record state
682      files analogous to write_state.F
683    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
684      analogous to the cg2d-related output.
685    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
686      so that writing to internal file fn (with length 512) fails.
687    checkpoint50d_pre
688    
689    checkpoint50c_post
690    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
691    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
692    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
693    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
694    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
695    
696    checkpoint50c_pre
697    Merging from release1_p13:
698    o bug fix for pkg/seaice dynamic solver
699    o Added SEAICE_initialHEFF to pkg/seaice
700    
701    checkpoint50b_post
702    o store u*,v* in gU,V instead of in guNm1,gvNm1
703    o in order to put the momForcing out of the Adams-Bashforth:
704      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
705      to timestep.F
706    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
707    o re-generate output for highly sensitive test-exp:
708       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
709    
710    checkpoint50b_pre
711    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
712    o corrected CPP option mismatch in exf_Bulk... functions for case
713      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
714    
715    checkpoint50a_post
716    o Bug fix for merging between c50 and KPP.
717      ikey was passed from thermodynamics to kpp_calc via
718      common block rather than being recomputed in kpp_calc,
719      in contradiction with new key itdkey.
720      New key ikppkey created, and tamc.h headers updated.
721    
722    checkpoint50
723    - 2nd step of merge with ecco-branch:
724      merge changes in ecco-branch back into main trunk
725    - bug fix in find_alpha
726    - more storing in gmredi_calc_tensor.F, kpp_routines.F
727    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
728    - merged some sliced AD support routines
729    
730    checkpoint49
731    merged from ecco-branch:
732    o exf:
733      - Enable initialisation of forcing fields to constant
734        (runtime) values.
735      - in exf_getffields.F
736        Reduce i-/j-loop to interior domain, discarding overlaps.
737        That also fixes wrong TAF-key computations for key_1, key_2
738        with bulf formulae.
739      - exf_init.F modify #ifdef for exf_init_evap
740      - exf_getffieldrec.F, ctrl_getrec.F
741        The following INT-usages are not safe:
742          fldsecs  = int(fldsecs/fldperiod)*fldperiod
743          fldcount = int(fldsecs/fldperiod) + 1
744        and were modified.
745    o autodiff: checkpoint_lev...
746      - updated storing for bulk formulae (some arrays were missing)
747      - added state for seaice package
748      - synchronized with main branch
749    o DIVA:
750      Modif.s in
751      - the_main_loop.F
752      - the_model_main.F
753      and added cost_final_restore.F cost_final_store.F
754      o With these changes, it is possible to fully separate
755        the first forward run to compute the cost function (mdthe_main_loop)
756        and adjoint runs over individual DIVA intervals (adthe_main_loop)
757        into separate model executions.
758        This enables better tuning of DIVA to given queue sizes.
759      o Loss of cost function value in consecutive DIVA runs is
760        fixed by storing to 'costfinal' file.
761      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
762        beginning/end of adjoint integration is accounted for.
763      The current changes apply to TAF-1.4.26.
764      TAF has one remaining bug, requiring one manual change
765      (see MITgcm manual).
766    o cal: synchronized between MAIN and ecco-branch
767    
768    checkpoint48i_post
769    o Changes to restore differentiability of code w.r.t. previous tag
770      (mostly adding new routines to make list and replacing
771      pressure by totPhiHyd).
772    o Updated and merged grdchk package
773      - has both ADM and TLM checks
774      - works for single- and multi-proc.
775      - output cleaned
776      - worked successfully for parallel DIVA
777    o genmake:
778      - Adding -platform=SP4
779      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
780    o Modif. for DIVA:
781      ctrl_unpack should not be called in intermediate DIVA interval.
782      (similar thing would apply for active files such as
783      tbar, sbar, psbar, which should not be reinitialised;
784      only relevant for ecco-branch)
785    
786    checkpoint48h_post
787    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
788    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
789    o Added SEAICE_initialHEFF to pkg/seaice
790    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
791    
792    checkpoint48g_post
793    --- EOS:
794    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
795      store total Potential in totPhyHyd for diagnostics & EOS.
796    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
797    --- Pressure/geopotential gradient:
798    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
799    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
800      ( changes results of global_ocean_pressure )
801    o NLFS + z-coord.: add eta*Rho' contribution.
802    o accurate phiHyd when using interface-W at the middle between 2 centers
803     ( changes results of ideal_2D_oce )
804    o includes r* 2nd term in potential gradient.
805    
806    checkpoint48f_post
807    Merging from release1_p12:
808    o Modifications for using pkg/exf with pkg/seaice
809      - improved description of the various forcing configurations
810      - added basic radiation bulk formulae to pkg/exf
811      - units/sign fix for evap computation in exf_getffields.F
812      - updated verification/global_with_exf/results/output.txt
813    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
814      (SBO) core products, including oceanic mass, center-of-mass,
815      angular, and bottom pressure (see pkg/sbo/README.sbo).
816    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
817      to avoid negative values in shallow regions.
818      - updated verification/natl_box/results/output.txt
819      - updated verification/lab_sea/results/output.txt
820    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
821    o Added useSingleCpuIO option (see PARAMS.h).
822    o Updated useSingleCpuIO option in mdsio_writefield.F to
823      work with multi-field files, e.g., for single-file pickup.
824    o pkg/seaice:
825      - bug fix in growth.F: QNET for no shortwave case
826      - added HeffFile for specifying initial sea-ice thickness
827      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
828    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
829      kpp_transport_t.F, forward_step.F, and the_main_loop.F
830    o pkg/seaice:
831      - adjoint-friendly modifications
832      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
833    
834    checkpoint48e_post
835    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
836    o dynamics: change definition of computational domain & adapt mom_fluxform
837      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
838    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
839        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
840        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
841        global_ocean.90x40x15 global_with_exf global_ocean_pressure
842        inverted_barometer solid-body.cs-32x32x1
843      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
844    
845    checkpoint48d_post
846    o in preparation for r*:
847     a) use pre-computed gradient of hydrostatic potential:
848        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
849     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
850        => affects results of glob_oce_pressure (different truncation error)  
851      update output.txt of ideal_2D_oce & global_ocean_pressure
852    
853    checkpoint48d_pre
854    o in preparation for r*:
855      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
856      pass the 2 comp. of the grad. as arguments to momentum S/R.
857      but for the moment, only used if it does not change the results.
858    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
859    
860    checkpoint48c_post
861    Modifications in treatment of initial flux forcing controls
862    to avoid extra storing of flux fields.
863    
864    checkpoint48c_pre
865    o Added tidal_basin_2d experiment (currently 1D!)
866    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
867    
868    checkpoint48b_post
869    o r* coordinate added in #ifdef NONLIN_FRSURF block.
870     (modification to pressure gradient not yet implemented)
871    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
872      (for U & V) that are used for vertical advection of momentum.
873    
874    checkpoint48a_post
875    o In preparation for r*, use temp. array to compute vertical transport
876       in flux-form momentum pkg. => change results of few test-exp.
877      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
878                        lab_sea, natl_box & plume_on_slope
879    
880    checkpoint48
881    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
882    
883    checkpoint47j_post
884    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
885    o moved adexch from forward_step to addummy_in_stepping
886    o added exch in ctrl_map_...
887    o aveFreq.=0. at end of cost_final to avoid overwrite in
888      reverse checkpointing loop
889    o Yet more changes in gmredi:
890      * adgmredi_calc_tensor
891        avoiding all recomputation of gmredi_slope_limit
892      * adgmredi_x/y/rtransport
893        added flag for excessive storing to avoid recomp. of
894        u/v/rtans, dTdx/y/z
895        -> this is not really necessary and very memory-consuming
896      * adgmredi_slope_psi:
897        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
898      * gmredi_slope_limit
899        re-activated full calculation of taperfct for case 'ac02'
900    o updating verification/ adjoints of carbon, global_ocean.90x40x15
901    
902    checkpoint47i_post
903    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
904    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
905      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
906    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
907    o gmredi: fix few bugs.
908    
909    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
910    This will be a good checkpoint to plug into the ecco-branch.
911    o few modif.'s to get latest version adjointed
912      (mainly kick out code in ini_linear_phisurf)
913    o modif's to run adjoint with exactConserv
914    o case GM_BOLUS_ADVEC should be cleaned
915      S/R gmredi_slope_psi should be cleaned
916    o verification/carbon now has exactConserv=.TRUE.
917    
918    checkpoint47g_post
919    o time-average AIM output: becomes independent from statvars time-average
920      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
921    o After TAF bug fix:
922      Tested adjoint of gmredi package.
923      Tests were done with checkpoint47 rather than with latest
924      checkpoint47f_post since the latter is broken for the adjoint
925      verification/carbon/ contains both ADM and TLM gradient checks.
926    Here they are, before they get changed/lost/stolen.
927    Mostly modif.'s to fix numerical sensitivities.
928    Gradient checks OK for
929    - GM_taper_scheme:
930      * clipping
931      * ac02
932      * linear
933      * glw91
934      * dm95
935      * ldd97
936    - GMREDI_OPTIONS:
937      * GM_VISBECK_VARIABLE_K
938      * GM_NON_UNITY_DIAGONAL
939      * GM_EXTRA_DIAGONAL
940      * GM_BOLUS_ADVEC
941    in conjunction with data.gmredi parameters to be checked in
942    in a few minutes under verification/carbon/code/
943    
944    checkpoint47f_post
945    Merging from release1_p10:
946    o modifications for using pkg/exf with pkg/seaice
947      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
948        and SEAICE_EXTERNAL_FLUXES
949      - pkg/exf CPP options EXF_READ_EVAP and
950        EXF_NO_BULK_COMPUTATIONS
951      - usage examples are Experiments 8 and 9 in
952        verification/lab_sea/README
953      - verification/lab_sea default experiment now uses
954        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
955    
956    checkpoint47e_post
957    o created a tag prior to creating a branch
958    
959    checkpoint47d_post
960    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
961      at the bottom boundary had an erroneous half slip boundary condition
962    o added bottom drag and no slip boundary condition capabilities to
963      oceanic pressure coordinates code
964    o added new verification experiment global_ocean_pressure, this experiment is
965      also described in the tutorial section of the manual
966    checkpoint47d_pre
967    
968    checkpoint47c_post
969    o Added a verification experiment for a global cubed-sphere ocean run
970      -  verification/global_ocean.cubed32x32x30
971      -  uses pkg/therm_seaice and pkg/bulk_forcing
972    
973    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
974    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
975      when using P-coordinate; only implemented for atmospheric config.
976    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
977      NOTES: requires option NONLIN_FRSURF to be "#define".
978    o update advect_xz/results/output.txt (left from checkpoint44g_post)
979    
980    checkpoint47b_post
981    Merging from release1_p9:
982    o pkg/seaice
983      - removed GOTO's and added taf directives
984      - double precision constants to reduce the g77 (Linux)
985        to F77 (SGI) differences reported in release1_p8
986    o tools/genmake
987      - added SGI options
988    o verification/testscript
989      - updated to that of checkpoint47a_post
990    o verification/global_ocean.90x40x15/input/eedata
991      - modified for SGI f77 compatibility
992    o verification/lab_sea
993      - added description of sea-ice model
994      - added missing matlab routines
995      - added test of thermodynamics parallelization
996    
997    checkpoint47a_post
998    o new pkg: aim_v23
999     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1000       for now, keep the same surface forcing as before.
1001     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1002     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1003     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1004    o add diagnostic of surface correction term in monitor output
1005    
1006    o bulk_force and therm_seaice
1007    - Two packages:  bulk_force (Bulk forcing)
1008      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1009    - Earlier integration from Stephaine Dutkiewicz
1010      and Patrick Heimbach.
1011    - Two ifdef statements for compile time,
1012       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1013    
1014    checkpoint47
1015    differentiable version of checkpoint46n_post
1016    o bug fix in quasihydrostaticterms
1017    o * "clean" adjoint code (in terms of extensive recomputations)
1018        can now be obtained for all GMREDI options (i.e. for
1019        - GM_VISBECK_VARIABLE_K
1020        - GM_NON_UNITY_DIAGONAL
1021        - GM_EXTRA_DIAGONAL
1022        - GM_BOLUS_ADVEC )
1023      * However, wrong gradient check problem remains unsolved.
1024      * New CPP options have been introduced for different
1025        tapering schemes
1026    o external_fields_load now part of differentiation list
1027    o pressure needs multiple storing;
1028      would be nice to have store_pressure at beginning or
1029      end of forward_step, e.g. by having phiHyd global (5-dim.)
1030      (NB: pressure is needed for certain cases in find_rho,
1031      which is also invoked through convective_adjustment).
1032    o recomputations in find_rho for cases
1033     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1034    o #define ATMOSPHERIC_LOADING should be differentiable
1035    o ini_forcing shifted to begining of initialise_varia
1036    o Incorporating QNVS line search routines into MITgcm
1037      (this is separate code, and therefore not under pkg)
1038      lsopt/, optim/
1039    o Updated verification/carbon/
1040      - #define GM_VISBECK_VARIABLE_K
1041      - GM_taper_scheme    = 'ldd97'    
1042    
1043    checkpoint46n_post
1044    Merging from release1_p8:
1045    o verification/natl_box:
1046      updating new external_fields_load routine
1047    o New package: pkg/seaice
1048      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1049      The sea-ice code is based on Hibler (1979-1980).
1050      Two sea-ice dynamic solvers, ADI and LSR, are included.
1051      In addition to computing prognostic sea-ice variables and diagnosing
1052      the forcing/external data fields that drive the ocean model,
1053      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1054      The implied surface heat flux is then stored in variable
1055      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1056      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1057      non-local transport term.  Because this call precedes model
1058      thermodynamics, temperature under sea-ice may not be "exactly" at
1059      the freezing point by the time theta is dumped or time-averaged.
1060      N.B.: fairly large differences in accuracy occur across
1061            different platforms/compilers; comparison between
1062            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1063            generated output gives:
1064       T           S           U           V
1065      C D M    c        m  s        m  s        m  s        m  s
1066      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1067      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1068      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1069    
1070      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1071    o GAD:
1072      - generated new common blocks to account for call of
1073        same gad routines with differing traceridentities
1074        (needed to modify tracerIdentity indices in GAD.h)
1075      - generated separate common blocks for case useCubedSphereExchange
1076        (Department of Futurology)
1077      - parameter lists to gmredi_?transport: added tracerIdentity
1078      - added new key indices to tamc.h
1079    o external_fields_load:
1080      - added this routine to TAF list
1081      - needed to make some common blocks global and additional storing
1082        along the same lines as exf package (checkpoint_lev?_directives.h)
1083    o exf:
1084      updated external forcing package
1085      - bug fixes carried over from ecco-branch
1086        (missing OBCS_OPTIONS.h in two routines)
1087      - enable easy to use "no forcing".
1088      - added exf I/O for atmospheric loading
1089      - added exf I/O for runoff data
1090      - transfered scaling between exf <-> MITgcm to exf namelist
1091    o Adding new verification experiment global_with_exf.
1092      This verification experiment is almost identical to the
1093      global_ocean.90x40x15 experiment, except that it uses
1094      the exf (and cal) package instead of the
1095      external_fields_load routine (cf README file).
1096    
1097    checkpoint46m_post
1098    o modified testscript to return -- when there are no lines of "%MON" output
1099    o added new flag "quasiHydrostatic" for QH mode
1100      and new routine quasihydrostaticterms()
1101    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1102      New routine: mom_u_coriolis_nh()
1103    o fixed sign of non-hydrostatic metric terms in u and v equations.
1104      Depend on correct sign of gravitySign.
1105    o added work.pc* to .cvsignore in aim directories using ifc
1106    o introduced flag for controllin non-hydrostatic metric terms
1107    o removed gravitySign from PARM04
1108    o switched to g77/ifc from pgf77 in aim experiments
1109    
1110    checkpoint46l_post
1111    o made convective adjustment work with pressure coordinates:
1112     - changed the direction of k-loop in convective_adjustment.F for the
1113       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1114     - adjusted the reference pressure k-index in convective_adjustment.F
1115     - adjusted the convection condition in convect.F (in analogy to
1116       calc_ivdc.F)
1117     - convective_adjustment no longer computes anything on the halos
1118     - removed the warnings about negative salinity from find_rho.F and
1119       find_alpha.F; instead the new routine look_for_neg_salinity, called
1120       at the beginning of find_rho, find_alpha, and find_beta, does a
1121       check of the entire slice, if CPP-option
1122       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1123    checkpoint46l_pre
1124    
1125    checkpoint46k_post
1126    o fixed the verification/global_ocean.90x40x15 experiment:
1127     - new bathymetry (the world according to A., JMC, and M.)
1128     - new initial fields and forcing fields (*.bin files)
1129     - new POLY3.COEFFS (for the next release one should switch to a full
1130       equation of state: JMD95P or MDJWF)
1131     - fixed several errors and redundancies in the data file
1132     - experiment uses looped cells
1133     - added matlab directory with diagnostic scripts for plotting of output
1134    
1135    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1136     - read AIM physics parameters from a file (data.aimphys)
1137     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1138    
1139    checkpoint46j_post
1140    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1141    o move wVel computation at the end of the time step, in S/R integr_continuity
1142    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1143    o update timeave pkg for wVel diagnostic.
1144    checkpoint46j_pre
1145    
1146    checkpoint46i_post
1147    o Clean up AIM package (and keep the results unchanged):
1148      include CPP_OPTION and use IMPLICT NONE in all routines ;
1149      declare all the variables _RL ; use _d 0 for all numerical constants.
1150      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1151    
1152    checkpoint46h_post
1153    o cleaned up the use of rhoNil and rhoConst.
1154      - rhoNil should only appear in the LINEAR equation of state, everywhere
1155        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1156        and the dynamical equations are all divided by rhoConst
1157    o introduced new parameter rhoConstFresh, a reference density of fresh
1158      water, to remove the fresh water flux's dependence on rhoNil. The default
1159      value is 999.8 kg/m^3
1160    o cleanup up external_forcing.F and external_forcing_surf.F
1161      - can now be used by both OCEANIC and OCEANICP
1162    checkpoint46h_pre
1163    
1164     Added code to convert surface volume flux (fresh water) into
1165     a mass flux when using P coordinates in the ocean (OCEANICP).
1166     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1167    
1168    checkpoint46g_post
1169    o Include a new diagnostic variable phiHydLow for the ocean model
1170      - in z-coordinates, it is the bottom pressure anomaly
1171      - in p-coordinates, it is the sea surface elevation
1172      - in both cases, these variable have global drift, reflecting the mass
1173        drift in z-coordinates and the volume drift in p-coordinates
1174      - included time averaging for phiHydLow, be aware of the drift!
1175    o depth-dependent computation of Bo_surf for pressure coordinates
1176      in the ocean (buoyancyRelation='OCEANICP')
1177      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1178        Theta, Salinity, and Pressure in the parameter list. This routine is
1179        presently contained in find_rho.F. This routine does not give the
1180        correct density for 'POLY3', which would be a z-dependent reference
1181        density.
1182    o cleaned up find_rho
1183      - removed obsolete 'eqn' from the parameter list.
1184    o added two new verification experiments: gop and goz
1185      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1186    checkpoint46g_pre
1187    
1188    checkpoint46f_post
1189    o Enable tangent linear (forward mode) gradient checks:
1190      - extended active file handling to g_... files
1191      - added TANGENT_SIMULATION to theSimulationMode
1192      - extended grdchk package accordingly
1193    o added tangent linear setup in verification/carbon/code_ftl
1194    o added adjoint setup in verification/front_relax/code_ad
1195    
1196    checkpoint46e_post
1197    o Added new equation of state -> MDJWF
1198      - EOS of McDougall et al., 2002, JAOT, submitted
1199      - caveat: the equation of state is only valid for a smaller (more
1200        realistic?) range of values than JMD95P/Z and UNESCO
1201      - added masks to the calculation of pressure in store_pressure
1202      - added more check values for density in check_eos (ini_eos.F), some of
1203        the old check values are out of the range of the MDJWF-eos, so don't
1204        expect perfect matches for those
1205    checkpoint46e_pre
1206    
1207    checkpoint46d_post
1208    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1209      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1210      case of pressure coordinates. eosType='JMD95Z' in
1211      combination with buoyancyRelation='OCEANICP' now causes an error.
1212    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1213      in find_alpha/beta.
1214    checkpoint46d_pre
1215    
1216    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1217      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1218    
1219    checkpoint46c_post
1220    o Changes necessary for ocean in p-coordinates
1221     -  Added new buoyancy relation = 'OCEANICP'
1222     -  Added new parameters = gravitySign (this used to be contained inside
1223        the factor dRdZ which I added when we first switched to R coordinates).
1224     X GM/Redi is not compatible (yet)
1225     X bottom drag and no-slip need to be debugged.
1226    checkpoint46c_pre
1227    
1228    checkpoint46b_post
1229    o Added new equation of state -> JMD95Z and JMD95P
1230      - EOS of Jackett and McDougall, 1995, JAOT
1231      - moved all EOS parameters into EOS.h
1232      - new routines ini_eos.F, store_pressure.F
1233    o Added UNESCO EOS, but not recommended because it requires
1234      in-situ temperature (see JMD95)
1235    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1236      unesco.f to be used with POLY3
1237    checkpoint46b_pre
1238    
1239    checkpoint46a_post
1240    o Added (atmospheric) pressure loading
1241      - new field in FFIELDS.h, etc...
1242      - new cpp flag ATMOSPHERIC_LOADING
1243    o Changed hFacC to _hFacC in calc_phi_hyd.F
1244    o Added SHORTWAVE_HEATING to some files for consistency
1245    checkpoint46a_pre
1246    
1247    checkpoint46
1248    further merges from release1_p5
1249    o new ctrl package
1250      - adopted from ECCO environment to enable optimization
1251      - added Eliassen Palm fluxes to controls
1252    o added Eliassen Palm flux controls to gradient check package
1253    o cost package
1254      - Compatible with new ctrl package
1255      - added Eliassen Palm cost hooks
1256      - modif's of existing cost functions
1257    o Adjoint-related bug fixes in kpp:
1258      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1259      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1260    o autodiff package
1261      - flow directives:
1262        + new for S/R do_the_model_io
1263        + enhanced for S/R checkpoint
1264        + new gmredi.flow
1265      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1266        disable adcommon.h/g_common.h by default.
1267      - fixed problem for adjoint of global_max
1268    o modified verification/carbon/
1269    o New setup for adjoint of global_ocean
1270    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1271    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1272    o incorporated hooks for sponge layer code (external_forcing.F)
1273    
1274    checkpoint45d_post
1275    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1276    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1277      (affects plume_on_slope "cg2d" output)
1278    o add new parameter deltaTfreesurf for free-surface time stepping
1279    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1280    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1281    o change phiMin in exp1 (to agree with documentation)
1282    o add new flags:
1283     - T,S forcing inside/outside Adams-Bashforth
1284     - turn off temp,salt advection and/or forcing
1285     - for each tracer, define internal flag for multiDimAdvection & A-B
1286    o monitor: change definition of KE to check conservation of Energy
1287    
1288    checkpoint45c_post
1289    o Removed f90 comments ("!")
1290    o Modified initialisations to enable exf package for MITgcm
1291      (without invoking ECCO_PACKAGE).
1292    o modifications to gradient check package (Martin Losch)
1293      - enable centered differences
1294      - modified format of standard output
1295    
1296    checkpoint45b_post
1297    o cleaned exchange calls in cg2d
1298    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1299    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1300      to configure barotropic setup (Martin Losch)
1301    o moved some initialisations within bi,bj loop in dynamics
1302      (TAF flow dependency)
1303    o in initialise_varia, moved call packages_init_variables
1304      before convective_adjustment_init
1305      (corresponding adjustment of TAF tape initialisation).
1306    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1307    
1308    checkpoint45a_post
1309    o compute Rho over the whole domain (extend iMin,jMin indices)
1310    o specific exchange for X-slice domain (case Ny=1)
1311    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1312    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1313    
1314    checkpoint44h_post = checkpoint45
1315    o Fix to restore differentiability:
1316      place at which packages_init_variables is called in
1317      initialise_varia is crucial for reverse control flow.
1318    o modifications in GMRedi to enable stable adjoint
1319      (corresponding modif's in thermodynamics, dynamics)
1320    o added missing hook for sponge layer code in external_forcing
1321    o modified test cost functions
1322    o storing in gad_advection (plus removal of write(0,*)!
1323    o missing headers TR1.h added in convective_adjustment routines
1324    o errorMessageUnit set non-equal zero in eeboot
1325      (conflict on some platforms, e.g. IBM SP3)
1326    o modified carbon verif.
1327    
1328    checkpoint44h_pre
1329    o vertical grid option: allow to put the Interface at the middle between
1330      2 cell-centers ; replace delZ in pkg/kpp by drF.
1331    o GM Advective form: Tracers are advected using the residual transport (=
1332      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1333    
1334    checkpoint44g_post
1335    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1336      results) ; ifdef missing in thermodynamics.F
1337    
1338    checkpoint44f_pre,checkpoint44f_post
1339    o added PTRACERS package
1340      This allows an arbitrary number of passive tracers to be integrated
1341      forward simultaneously with the dynamicaly model.
1342      + Implemented so far:
1343        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1344        - I/O and checkpointing
1345        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1346      + Not implemented so far:
1347        - KPP
1348        - OBCS
1349      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1350        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1351        line in data.pkg.
1352      + This package is disabled by default since it increases storage.
1353    
1354    
1355    o testscript: added -cleanup option
1356    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1357                 b) enable to filter 2D fields.
1358    
1359    checkpoint44e_pre,post
1360    o re-wrote convective adjustment to use pre-calculated weights
1361      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1362      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1363      Original calls to convect() still in place.
1364    
1365    chkpt44d_pre,post
1366    o added missing EXCLUDE_MONITOR flags
1367    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1368      (incompatible typ in MIN/MAX expressions caused problems
1369      on IBM SP3)
1370    o in genmake added variable MAKEDEPEND
1371      plus resetting for case SunOS
1372    o added timer_stats.c routine for IBM SP3
1373    o removed variables in dynamics
1374    !!! I forgot to create tag chkpt44d_pre !!!
1375    !!! But chkpt44d_pre = chkpt44c_post    !!!
1376    
1377    o real fresh water flux implemented with non-linear free-surface.
1378    
1379    chkpt44c_pre,post
1380    o few fix (mask in shap_s2, EmPmR in external_field_load,
1381      USE_NATURAL_BCS in solve_for_P);
1382    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1383    
1384    checkpoint44b_pre/_post
1385    o merge of relevant stuff from the ecco-branch:
1386      - genmake: removed $S64 overwrite for case SunOS
1387      - pkg/exf: update and corrections for field swapping and obcs
1388      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1389                  harmonized between ECCO and MITgcm
1390      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1391                      updated checkpointing_lev... lists for obcs
1392      - model/src: minor changes in forward_step, plot_field
1393                   added directive for divided adjoint in the_main_loop
1394      - pkg/mdsio: added mdsio_gl_slice
1395    
1396    o check parameters & config (chkpt44a_pre,post)
1397    o OBC and NonLin_FrSurf.
1398    
1399    checkpoint44
1400    o fix bug in mom_vi_del2uv
1401    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1402    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1403    o update AIM experiments (NCEP input files)
1404    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1405    o added some stuff for AD
1406    
1407    checkpoint43
1408    o added two new advection tests
1409    o added global 4x4 degree ocean test
1410    o added test of H&S94 with free surface on cube
1411    o some final mods for gradient check, adjoint,...
1412    
1413    checkpoint42
1414      Fixed AD-related problems:
1415    o Store directives up-to-date with re-arranged Adams-Bashforth
1416      (mainly thermodynamics.F)
1417    o New store directives for multi-dim. advection schemes
1418      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1419      * new common block and key passkey
1420      (mainly gad_advection.F)
1421    o Modified store directives for split of dynamics/thermodynamics
1422      for the case ALLOW_KPP
1423    o Cleaned argument list for timestep_tracer.F
1424    
1425    checkpoint41
1426    o re-formatted/added comments in prologues of key subroutines
1427      to work with protex
1428    
1429    checkpoint40
1430    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1431    o added FLT (floats) package from Arne along with demo. experiment
1432    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1433      implementation of forward-in-time forcing terms
1434    o more mods for non-linear free-surface including new variable
1435    o modified multi-dim method to work on cube
1436    o bug fix in KPP (from DM)
1437    
1438    checkpoint40pre9
1439    o added DST advection schemes
1440    o fix MPI bug on SGI's
1441    o modifications for non-linear free-surface
1442    o fixed conditionals for fixed flow/passive tracer only mode
1443    o added tension/strain form of stress tensor
1444    o changes to commenting of arguments for TAF/TAMC
1445    o added/updated many matlab scripts
1446    o added multi-dimensional advection method for tracers
1447      
1448    checkpoint40pre8
1449    o new package rw/
1450      Added method for dumping intermediate local arrays:
1451      mdsio_writetile - same as mdsio_writefield except works from inside
1452                        bi,bj loop
1453      mdsio_writelocal - same as mdsio_writetile except works for local
1454                         arrays
1455      write_local_r? - higher-level wrapper for mdsio_writelocal
1456      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1457      Example given at end of mom_vecinv.F that dumps some local arrays.
1458    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1459      control flux-form versus vector invariant code.
1460      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1461      or genmake -DISABLE ...
1462    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1463      (additional storing is now needed for case vecinv;
1464      currently nothing implemented to switch this storing off
1465      in case fluxform is used since no CPP flag available).
1466    
1467    checkpoint40pre7
1468    o bug fix in dynamics.F
1469      calc_viscosity called before k=1,Nr loop.
1470    o added some #ifdef's ALLOW_PASSIVE_TRACER
1471    o cleaned initialisations in ctrl_map_ini
1472      related to TAF
1473    
1474    checkpoint40pre6
1475    o split dynamics into thermodynamics & dynamics
1476    o corresponding split of calc_diffusivity into
1477      calc_diffusivity, calc_viscosity
1478      (kpp_calc_diff, kpp_calc_visc).
1479    o Added diffkr, kapgm to control variables
1480    o bug fix in gmredi_slope_limit for ldd97
1481    
1482    checkpoint40pre5
1483    o proper initialization of Adams-Bashforth time stepping
1484      + uses forward step for very first step of model (iter=0)
1485    o re-generated *all* output since almost all output is modified by this
1486      change (sorry but we've been putting this one off for about 2 years)
1487      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1488        *not* regenerated since they are already out of date and I don't
1489        want to create the impression that they are suddenly working.
1490    o removed KAP stuff for DEC's
1491    o modified/added many .cvsignore files in */code and */input
1492    o added new expt "solid-body.cs-32x32x1"
1493      + this uses an alternative form of ini_curvilinear_grid.F which
1494        is not necessarily any better than the current one...
1495    
1496    checkpoint40pre4
1497    o added re-initialisations of utrans,vtrans,rtrans in
1498      calc_common_factors which are crucial for TAF.
1499    o extended iMin,jMin range for calc_common_factors,
1500      calc_diffusivity
1501    o added option ALLOW_PASSIVE_TRACER
1502    o a few minor updates and fixes
1503    
1504    checkpoint40pre3
1505    o created calc_gtr1.F for gad package
1506    o split the_main_loop and re-introduced forward_step
1507    o some recomputations of nIter0 for TAMC
1508    
1509    checkpoint40pre2
1510    o Updated to latest branch of AJA, JMC
1511    o Added gradient check package
1512    o Added routines for passive tracer handling
1513    o Added carbon sequestration sensitivity experiment
1514    
1515    checkpoint39
1516     o Modifications and fixes to support TAMC
1517       (mainly missing or wrong directives)
1518     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1519       in addummy_in_stepping
1520     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1521     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1522     o Included following packages:
1523       cal: calendar
1524       exf: external forcing
1525       ecco: essential routines to control use of cal, exf
1526             (NB: this is not the full ECCO environment)
1527     o disabled some packages by default in genmake
1528    
1529    checkpoint38
1530     o see notes_c37_adj.txt
1531     o corrected wrong layer index in external_forcing_t
1532     o replaced the_main_loop/forward_step by the_main_loop
1533     o removed forceoutput from write_state
1534       (replaced criteria for initial/final state)
1535     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1536    
1537    checkpoint37
1538     o mdsio.F routine split and packaged in pkg/mdsio
1539       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1540        used unless genmake -disable=mdsio)
1541     o allow a more precise surface-geopotential gradient for the atmosphere
1542       taking into account the change in space of Alpha (=1/rho) at the surface.
1543     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1544       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1545     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1546       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1547       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1548     o Time-Average diagnostics defined as a pseudo package "timeave".
1549     o pickup files : old pickup (before c35) did not work with new code (c35
1550       and after) unless activating 2 commented lines in initialise-varia.
1551     o Non-Hydrostatic pickup file Pb fixed.
1552     o bug with Rigid-lid version (since c35) fixed.  
1553    
1554    checkpoint36
1555     o implement Crank-Nickelson barotropic time-stepping
1556     o recover Time-Average diagnostics
1557     o fix Pb in checkpoint (PR#19)
1558     o AIM become a standard package ; clean unused CPP_kees
1559    
1560    checkpoint35
1561     o subtantial rewrite of dynamics.f
1562     o allows staggered time-stepping
1563     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1564     o added bottom drag (linear + quadratic)
1565    
1566    checkpoint34
1567     o Modified exchange routines for correct reverse simulation.
1568     o Added verification output to comply with bug fix in impldiff.F
1569       as of c33 (exp2, natl_box).
1570     o Corrected store directives in dynamics.F
1571     o Corrected array boundaries in impldiff.F
1572     o Corrected array dimensions in gmredi.
1573       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1574     o Added routine GLOBAL_SUM_INT to global_sum.F
1575     o Added mdsio_gl.F for ECCO purposes.
1576    
1577    checkpoint33
1578     o Fixed bug in lower BC in impldiff.F
1579     o Fixed confusion about units of forcing arrays in FFIELDS.h
1580       namely Fu,Fv,Qnet,Qsw,EmPmR:
1581       - Removed verification/natl_box/code/external_fields_scale.F
1582         (did not differ from that in model/src)
1583       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1584         (see FFIELDS.h for description)
1585       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1586         kpp_calc.F and kpp_transport_t.F
1587       - Removed model/src/external_fields_scale.F and calls to it
1588       - verification/natl_box uses flux data with "atmospheric" sign so
1589         a special version of external_fields_load.F is used to
1590         change the data as it's read in. This way, the arrays
1591         have the right units and signs at all times tha a user could
1592         possibly use them.
1593     o Corrected genmake to delete a temporary file during configuration
1594    
1595    checkpoint32
1596     o Scaling of forcing fields moved from external_forcing.F to
1597       external_fields_scale.F, called directly after loading fields.
1598     o Surface relaxation terms added to surface tendency fields in
1599       extra subroutine.
1600     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1601       fields.
1602     o Changes in GMRedi to comply with packaging structure.
1603     o Modifications and bug fixes in KPP package.
1604     o Verification experiment for KPP added (verification/nat_box/)
1605    
1606    checkpoint31
1607     o Packages interface brought in line with defined standard
1608       -> new routines packages_...F
1609       -> changes in initialise_fixed.F, initialise_varia.F
1610       -> enables initialisation interface for ECCO package
1611     o Rescaling of external forcing fields immediately after read
1612       (removed from external_forcing.F)
1613       -> new: surface_fields_scale.F
1614       -> affects ini_foorcing.F, external_fields_load.F
1615     o Computation of surface tendencies before tendency updates.
1616       -> new: external_forcing_surf.F
1617     o Change of variable names useGMRedi, useKPP, useECCO
1618     o Further changes in dynamics.F, impldiff.F for TAMC
1619     o Tested for experiments 0, 2, 4.
1620       - not yet tested for GMRedi.
1621       - not yet tested for KPP.
1622    
1623    checkpoint30
1624     o Updates for OBCs
1625     o New experiment for test OBCs (internal_wave)
1626     o New output.txt in verification/exp4/results/
1627     o Updates for KPP: calculation of viscosity corrected, new variables
1628       kpp_dumpFreq and kpp_taveFreq
1629     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1630       and entry for T90 in genmake
1631    
1632    checkpoint29
1633     o packaged KPP and GM/Redi
1634    
1635    checkpoint28
1636     o Corrected initialization of hFacMin for difference vertical coordinates
1637     o Modified calculation of partial cell thickness to more robust algorithm
1638     o config_summary.F: replaced write_1D_... by write_0D_...
1639       read_write.F: added subroutines write_0D_...
1640     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1641       included some initialisations required for TAMC.
1642     o routine calc_isoslopes: modified sqrt computation to make it
1643       differentiable for zero argument.
1644     o routines dynamics, impldiff:
1645       included store directives and tape key computations required for TAMC.
1646     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1647    
1648    checkpoint27
1649     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1650       formulation works properly with variable resolution.
1651     o restructured the calling tree between the_model_main() and dynamics()
1652     o split initialise() into initialise_fixed() and initialise_varia()
1653     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1654       in new routine ini_psurf()
1655    
1656    checkpoint26
1657     o moved some #ifdef in optional routines to encompass everything
1658       except the argument declarations. This was using up some memory.
1659     o fixed macros like _ADT to work with both versions of Linux cpp
1660     o cleaned up some unused and uninitialized variables
1661       (helps when debugging with strict compile options)
1662     o split up CPP_EEOPTIONS.h into options and macros
1663       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1664     o patch for 2 processor JAM mode
1665    
1666    checkpoint25
1667     o updates for OBCs and NH
1668     o dramatically reduced memory usage
1669     o added "JAM" routines for use on Artic network
1670     o parameterization of convection by implicit vertical diffusion
1671     o added a diagnostic of convective index
1672     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1673       (this is was partly for OBCs and NH but also in anticipation of
1674        an explicit free-surface option)
1675     o initial state input files for U and V
1676    
1677    checkpoint24
1678     o Removed some spurious "REAL"s
1679     o Updated KPP to latest version from JPL
1680     o Added a COS(latitude) in horizontal viscosity
1681    
1682    checkpoint23
1683     o Added del^4 diffusion for salt and temperature
1684     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1685    
1686    checkpoint22
1687     o Made many small changes: implicit none, format(i5), etc...
1688     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1689    
1690    checkpoint21
1691     o Introduced new I/O package that supports direct-access records (mdsio.F)
1692     o Split-up mid-level I/O routines
1693     o Updated input data for experiments 0,1,2,4 and 5
1694     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1695    
1696    checkpoint20
1697     o Tidied up open-boundaries some more
1698     o Added non-hydrostatic code
1699     o Fixed some input data
1700     o Modified MPI start-up to work in "coupled" context.
1701    
1702    checkpoint19
1703     o Tidied up directory structure for verification experiments.
1704     o Added new code for open boundaries.
1705     o Corrected advective terms near boundaries.
1706     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1707     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1708     o Split default parameters out of ini_parms.F into set_defaults.F.
1709    
1710    checkpoint18
1711     o Further changes for optional code generation with
1712       CPP - ugh!
1713    
1714    checkpoint17
1715     o Beginning to incorporating modularity
1716       for supporting atmos. and ocean configs.
1717     o Small changes for TAMC complinace
1718     o New ultra simple test case. Barotropic box
1719       configuration "exp0".
1720    
1721    checkpoint16
1722     o Minor changes to exchange routines to support
1723       accumulation in reverse mode. Adjoint of an
1724       assignment is an addition.
1725     o Changes to support compilation by TAMC (LR(1)
1726       syntax) and by g77 under Linux ( 72 character
1727       limit ).
1728    
1729    checkpoint15
1730     Rewrote exchange routines to allow
1731     o General tile <-> tile connectivity.
1732     o TAMC reverse mode flag ( is this really needed? )
1733     o Variable width overlap and exchange region widths.
1734     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1735       shmput/shmget, VIA, SYSV shmem and every other cool
1736       communication method.
1737    
1738    checkpoint14
1739     Consistent isomorphism chages made. These allow dynamical core
1740     to support both pressure and meters as a vertical coordinate.
1741    
1742    checkpoint13
1743     Release which corrects global_max problem and a couple
1744     of KGM time-averaging diagnostic errors. Also contains
1745     a double-gyre experiment setup as well as the baseline
1746     4 degree global template. The double gyre template is
1747     organised to allow it to be applied automatically to
1748     the baseline configuration.
1749    
1750    branch-point-rdot
1751     A few tidy-ups have been made bt the real point of this
1752     check-point (excuse the pun) is to allow a branch to be
1753     made for the purposes of adding the rDot alterations.
1754     I don't want to commit the rDot to the main-trunk until
1755     we've actually tested it...
1756    
1757    checkpoint12
1758     Tidy up and added generic genmake script (formerly
1759     configure script).
1760     Released to testers.
1761    
1762  checkpoint11  checkpoint11
1763   Re-arranged initialise() and introduced ini_vertical_grid()   Re-arranged initialise() and introduced ini_vertical_grid()
1764   and ini_masks_etc().   and ini_masks_etc().

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