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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.325 by jmc, Thu Jul 8 16:15:20 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 staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
7    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
8    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
9      affects (truncation error) output of lab_sea & natl_box exp.: updated
10    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
11    
12    checkpoint54a_post
13    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
14    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
15    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
16    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
17      + internal_wave (shift in writing cg2d_ini_res)
18    checkpoint54a_pre
19    
20    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
21      - modified verification/lab_sea and natl_box_adjoint accordingly
22    
23    checkpoint54
24    checkpoint53g_post
25    o prepare splitting of thermodynamics: store convect.counter in common block
26    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
27      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
28    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
29    o new parameter "nShapS": allow to treat differently S from T (nShapT)
30    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
31    o restore adjointability
32    
33    checkpoint53f_post
34    o modifications that affect AIM experiment results (update output.txt):
35      - no advection of S at top interface Nr (pkg/generic_advdiff)
36      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
37    o AIM pkg:
38      - include stability function into surf.Flux derivative relative to Tsurf
39      - calculate clear-sky radiation & surface temp. change (for diagnostics)
40    
41    checkpoint53e_post
42    o merged cylindrical coord configuration
43    o added rotating_tank experiment
44    checkpoint53e_pre
45    
46    checkpoint53d_post
47    o faulks upgraded: re-generate output.txt that have changed:
48       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
49    o Added Bryan and Lewis, 1979, vertical diffusivity profile
50    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
51    o added Sadourny discretization of Coriolis
52      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
53      - re-enabled use of omega3 (useAbsVorticity)
54    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
55      vector-invariant equations
56      - note: does *NOT* yet use same variable visc. for no-slip BC's.
57    o recoded the lateral boundary conditions for non-hydrostatic w, this time
58      hopefully without new bugs
59      - still to do: biharmonic friction for non-hydrostatic w
60    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
61    o regenerated output for global_ocean_ebm (using -ieee)
62    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
63      of mom_common/
64      - simple re-arrangement of instructions within computing loop
65    checkpoint53d_pre
66    
67    checkpoint53c_post
68    o new version of coupler for AIM+thSIce and Ocean models
69     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
70     - land: change Evaporation of snow
71     - aim with thSIce: fix bug in snow-precip.
72    o changes to calc_gw.F
73     - bug fix for w^2 term near the bottom boundary
74     - (hopefully) improve the lateral slip boundary condtions for use with
75        partial/looped cells
76      - because the bug fix changes two verification experiments anyway (exp5
77        and plume on slope), change the lateral boundary condition from half slip
78        to the value of no_slip_sides
79    o ebm package wasnt quite up to the parallel task. Fixed that.
80    o Adjoint of EBM package + verification
81      * TLM OK
82      * ADM not sufficient accuracy yet (needs further testing)
83    
84    checkpoint53b_post
85    o Commiting new energy balance model to repository
86      * package is pkg/ebm
87      * verif. is verification/global_ocean_ebm
88      * references are in ebm_driver.F
89    C      * X. Wang, P. Stone and J. Marotzke, 1999:
90    C        Global thermohaline circulation. Part I:
91    C        Sensitivity to atmospheric moisture transport.
92    C        J. Climate 12(1), 71-82
93    C      * X. Wang, P. Stone and J. Marotzke, 1999:
94    C        Global thermohaline circulation. Part II:
95    C        Sensitivity with interactive transport.
96    C        J. Climate 12(1), 83-91
97    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
98    C        Destabilization of the thermohaline circulation
99    C        by atmospheric eddy transports.
100    C        J. Climate 7(12), 1870-1882
101    o Will need long integration testing.
102    checkpoint53b_pre
103    
104    o created pkg/mom_common in preparation for variable viscosity code
105    o renamed and split ini_mnc_io
106    o pkg/land: only liquid water can diffuse or run-off
107    o AIM using land: soil wetness availability account for snow
108    o added printMapIncludesZeros to EEPARMS namelist
109    
110    checkpoint53a_post
111    o restore TAMC compatiility for exf_constants.h
112      (no usage of _d in .h)
113    o Additional storing in KPP in an attempt to fix
114      TAMC problem with adjoint of KPP code.
115      (no success...)
116      Identical code works fine with TAF.
117    o Fixed verification/natl_box_adjoint experiments.
118      Initial conditions for Experiments 4 and 5 are now
119      set to "SEAICE_initialHEFF=0", which is more reasonable,
120      and hence gives results closer to that of Experiment 2.
121      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
122    
123    checkpoint53
124    o stable checkpoint with up to date adjoint
125      TLM tests only run for 1st grdchk at the moment. Its unclear if
126      this is a code problem or a problem with resetting code for g_
127      variables that is being autogenerated wrong.
128      Otherwise:
129       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
130       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
131         are both still in chaos following their security messes.
132    
133    checkpoint52n_post
134    o various build (mostly genmake2) changes including:
135      - ability to build/run more easily within Cygwin and MacOS X
136      - more complicated Makefiles with a stronger dependence on Gnu Make
137    o pkg/seaice modifications
138      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
139        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
140        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
141      - changed proxy for geostrophic velocity and updated
142        verification/lab_sea/results/* accordingly
143      - removed ADI dynamic solver from pkg/seaice
144      - replaced all occurrences of 1/CSTICE or 1/CSUICE
145        they caused a segmentation fault under certain circumstances
146      - removed unused field WATR
147    o bug fix in exf-package:
148      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
149         now reflect that.
150    o small fixes in the cal-package:
151      - set reference date to first of January for the 'model'-calendar
152      - failing of cal_CheckDate in cal_FullDate now actually results in a
153        warning
154    o small modifications in exf-package to increase flexibility:
155      - change climtempfreeze from a constant to a runtime parameter that
156        is specified in data.exf_clim (default = -1.9)
157      - introduce runtime parameter windstressmax (default = 2.0) that is
158        specified in data.exf
159    o fix in pkg/thsice:
160      - update Evap (Tsf changes) to be consistent with Latent heat flux
161      - maintain snow precipitation unchanged (even if Tsf >=0).
162     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
163    
164    checkpoint52m_post
165    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
166      this does not change any of the results, because myIter=0 in swfrac always
167      lead to jwtype=2 (the default anyway), but the call makes little sense
168      as a default
169    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
170    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
171      atmospheric model (AIM) to use it ; add a "slab ocean" component.
172    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
173    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
174    o extending useSingleCpuIO option to work with new exch2 I/O format
175      - old-style, missing-tile I/O is still accessible by defining CPP
176        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
177    o monitor package can write to NetCDF files and/or STDOUT
178    o fix re-definition bug in MNC_GRID_INIT_ALL()
179    o doc/api_reference added
180      - a framework for building an API Reference Manual using all
181        the "protex" comments embedded in the code
182      - see pkg/generic_advdiff, pkg/mnc for examples
183    o MNC:
184      - make myThid the last argument for all subroutines
185      - new default for the grid files: NO halos
186      - add useMNC and other run-time flags
187      - separate per-file-group handling of the unlimited dimension
188      - early initialization of MNC w/ flags read at the eeboot stage
189        and lookup tables set in initialize_fixed
190      - write all MNC output to a freshly-created directory
191    o thermodynamics sea-ice (thsice) is now tested with testreport.
192    o test exp. advect_cs: use the standard cs32 grid ; update output.
193    o Added functionality to grdchk:
194      pick global i,j,k position (or nearest wet) where to perform check.
195    
196    checkpoint52l_post
197    o new land formulation:
198      a) use ground enthalpy as prognostic variable to ensure exact
199         energy conservation.
200      b) account for water temperature and for latent heat of freezing
201         in all processes (rain, run-off, ground storage)
202      c) compute surface and ground temperature implicitly.
203    o aim_v23 modification for new land model:
204      a) Treat separately land / ocean / sea-ice surface fluxes
205         to allow implicit computation of land & sea-ice surface temp.
206      b) add snow precipitation.
207    checkpoint52l_pre
208    
209    o fix problem (when 1 tile is empty) in min/max monitor.
210    o fix bug in timeAve (u,vZetatave in common block)
211    o no restoring terms under ice for pkg/seaice
212    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
213    o bug fix for pkg/seaice pickups
214    o change MNC call locations and add coordinate attributes
215    o mask vorticity at the corner ; affects global_ocean.cs output
216    o fix ini_curvilinear_grid ; test CS experiments with mpi
217    o aim.5l_cs: modify sea-ice fraction input file ; update output
218    o exf: Adding simple range check routine for exf fields after read
219    
220    checkpoint52k_post
221    o removed top-level directory "diags"
222      - we migrated these functions to pkg/timeave a long time ago
223    o fixed bug introduced in pkg/monitor
224    o accuracy ctrlprec = 32 insuffient for gradient checks using
225      averaged fields (I/O via cost_averages)
226      -> use ctrl.h in active_file*.F to control I/O precision.
227    o paramter list of CALL ADTHE_MAIN_LOOP
228    o added initial do_the_model_io to ecco
229    o set all ...Freq to zero after cost_final
230      taveFreq, dumpFreq, pChkptFreq
231    o MAIN and ECCO differentiability restored
232    
233    checkpoint52j_post
234    o fix nchklev in tamc.h for global_ocean...
235    o Bringing flow and store directives up-to-date
236    o Really weird thing!
237      call do_the_model_io from the_main_loop with parameters
238      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
239      TAF places a faulty re-call of initialise_varia
240      after cost_final call which should not be there!
241    checkpoint52j_pre
242    
243    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
244      error messages
245    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
246    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
247      debug output
248    o modfied mdsio_writefield.F to handle non-global files under exch2
249    o update AIM Cubed-Sphere exp (aim.5l_cs):
250      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
251    o update AIM Equatorial Channel exp:
252      use standard aim_v23 pkg and change the SST fields to be more realistic.
253    o globalFile now works with exch2
254    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
255      mon_vort3.F to make exch2 friendly with >1 tile per cube face
256    o limit timeave output for hi-res integrations
257    
258    checkpoint52i_post
259    o removed CPP_EEOPTIONS.h from verification/*/code
260    o updated the tiling for global_ocean_pressure
261    checkpoint52i_pre
262    
263    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
264      the old pkg/aim).
265    
266    checkpoint52h_pre
267    o shortened offending lines in exch2_send_rx?.template
268    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
269    o genmake2: add build & execute test for NetCDF code
270    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
271      old grid files, moved CPP_EEMACROS.h to pkg/exch2
272    o added useSingleCPUIO flag to monitor.F and mon_out.F
273    o added temporary hack for sea-ice dynamics on the cube:
274      metric terms are ignored and it is assumed that
275      there is no sea-ice on cube faces 1, 2, 4, and 5.
276    
277    checkpoint52f_post
278    o added exch2 cube routines to pkg/exch2
279    o modified hs94.cs-32x32x5 to use it
280    o added new grid files to hs94.cs-32x32x5
281    checkpoint52f_pre
282    
283    checkpoint52e_post
284    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
285      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
286    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
287      to work with implicit vertical advection and AB ;
288    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
289    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
290     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
291    checkpoint52e_pre
292    
293    o fix bug in impldiff when Nr=1 or Nr=2.
294    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
295    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
296    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
297      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
298    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
299    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
300    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
301    
302    checkpoint52d_post
303    o re-tiled many expts to allow comparison in multi-processor mode
304      - updated output accordingly
305      - changed hs94.128x64x5 to use intial T from file rather than use the
306        random number generator
307    o add infrastructure in model routines for fizhi and gridalt packages
308    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
309    o changes to permit hi-res, cubed-sphere, configuration
310      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
311      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
312      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
313        of surface winds for the cube
314      (A verification experiment, based on global_ocean.cs32x15, but with
315       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
316       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
317       complete with example surface forcing files and matlab scripts to look
318       at the output and compare it with that of global_ocean.cs32x15.)
319    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
320       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
321       to conform to the common rule.
322    o check-in the first version of the coupler + interfaces for multi-components
323       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
324       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
325       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
326       - ocean and atmos. share the same horizontal grid (no interpolation).
327       - exchanges between component and coupler is done in forward_step
328    o new verification experiment, cpl_aim+ocn:
329       coupled ocean - AIM atmosphere on cs32 grid.
330    
331    checkpoint52d_pre
332    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
333    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
334    
335    checkpoint52c_post
336    o Fixing OPTIONS files for use of exf:
337      - ALLOW_ECCO not needed
338      - ECCO_CPPOPTIONS.h should not be included from
339        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
340        as has been the case in the past
341      - All cal/exf related options are currently set in
342        single header file. Should remain so until we
343        agree on a consistent new policy.
344    o Removed all CPP options for cal package.
345      cal has no more CPP options.
346    o modified STOREs in GAD_ADVECTION
347    o corrected key comp. for passkey
348    
349    checkpoint52b_post
350    o new version: "thsice" of thermodynamic sea-ice pkg:
351     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
352     - modify fluxes but do not change theta directly;
353     - light cleaning of bulk_force pkg (still needed with thsice).
354     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
355       + output_thsice.txt to test thsice & bulk_force pkgs.
356    o put back grid & coriolis monitor output.
357    checkpoint52b_pre
358    
359    o call "do_the_model_io" at the beginning (=> dump initial state)
360    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
361    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
362      (need info on NUMBER_OF_PTRACERS)
363    o missing PTRACERS headers in some routines
364    o default tamc.h in pkg/autodiff supposed to crash
365      to ensure proper customization
366    
367    checkpoint52a_post
368    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
369      - moved surfaceTendencyTice from pkg/seaice to main code
370      - subroutine FREEZE_SURFACE now limits only surface temperature
371        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
372        => new output.txt for global_ocean.cs32x15 & global_with_exf
373      - keep the old version of FREEZE for backward compatibility;
374        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
375      - corresponding modifs for TAF directives
376    o added surface flux output variables to TIMEAVE_STATVARS
377    o time-averaged output for pkg/ptracers
378    o fix problem with ECCO-related divided adjoint
379      snapshot file was missing some ad-variables,
380      but no warning issued by TAF
381    
382    checkpoint52a_pre
383    o some bug fixes for #undef REAL4_IS_SLOW
384    
385    checkpoint52 = ecco_c52_e35
386    o after testing adjoints of checkpoint51u_post
387    
388    checkpoint51u_post
389    o this is the post-merge tag of the ecco-branch
390      (needs another clean checkout and re-testing)
391    o various natl_box_adjoint configs and results
392      but no input fields
393    o obcs adjoint not yet merged!
394    o adding ECCO global 1x1 and 2x2 degree configs
395    o updated/extended some store directives for seaice
396    o pkg/ecco now containes ecco-specific part of cost function
397    o top level routines the_main_loop, forward_step
398      supersede those in model/src/
399      previous input data.cost now in data.ecco
400      (new namelist ecco_cost_nml)
401    o in ctrl/ cleaned some cross-dependencies and updated CPP options
402    
403    checkpoint51t_post
404    o this is the pre-merge tag of the ecco-branch
405    
406    checkpoint51s_post
407    o cleanup: removed various obsolete #define-s
408    o pkg/grdchk
409      - renamed 'ph-grd 3' to 'grad-res'
410      - merged from ecco-branch
411        (remaining bug fixes for obcs gradient checks)
412      - additional high-precision output for testreport
413        (grep for 'precision_grdchk_result')
414    
415    checkpoint51r_post
416    o cleaned up or removed CPP_OPTIONS.h files
417    o updated results for some of the tests to reflect the new
418      optfiles (-ieee: -O0 instead of -O3)
419    
420    checkpoint51q_post
421    o cd_code:
422      - moved cd_scheme.F -> cd_code_scheme.F
423      - separate read_checkpoint from cd_code_ini_vars.F
424      - separated cd_code part from write_checkpoint
425      - updated AD_SOURCE, generated .flow
426      - added CD_CODE_VARS.h to the_main_loop
427      - Moving cd_code specific store dir.s to pkg/cd_code
428    o ctrl package totally restructured
429      - pack/unpack now optional and decoupled from
430        xx_/adxx_ I/O
431      - ctrl_pack/unpack cleaned
432        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
433      - confined inclusion of AD_CONFIG.h to where necessary.
434    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
435    
436    checkpoint51p_post
437    o create initial cd_code package
438      - WARNING: the initialization of fields within packages
439        is broken because INI_FIELDS (where READ_CHECKPOINT is
440        called) is called *before* PACKAGES_INIT_VARIABLES.
441        This seems to be backwards since
442        1) its important to initially zero the entire field including
443           the "halo" region
444        2) zeroing needs to be done *before* reading pickup info
445           and the pickup call might or might not happen in any
446           particular run
447      - this needs an overhaul for R2
448    o cleanup verification/*/code/GMREDI_OPTIONS.h
449    o cleanup testreport
450    
451    checkpoint51o_post
452    o bringing AD-related verif's up to date with genmake2
453      - carbon/
454      - global_ocean.90x40x15/
455      - hs.94.1x64x5/
456      - (front_relax/ )
457    o (more) consistent directory structure for AD-related verif.'s
458    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
459    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
460    o bug fix in find_alpha.F for MDJWF:
461      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
462        change rho -> rho-rhoConst
463      - replace call find_rho to find_rhonum
464    o initialisation of rFlx extended to full array (required by TAF)
465      and shifted to thermodynamics
466    o removed PTRACERS.h in ptracers routine
467    o added surfacetendencyPtr to S/R parameter list pracers_forcing
468    o Correcting initialisations for fVerU, fVerV.
469    o helping TAF to recognize dependency on kUp for
470      fVerU, fVerV
471    o Replacing delZ by delR in pkg/ctrl/
472    checkpoint51o_pre
473    
474    o undid all of cp51 pending some cleanups and discussion
475    o added the [#include "AD_CONFIG.h"] statement to all files that need
476       it for adjoint/tl #defines
477     o re-worked the build logic in genmake2 to support AD_CONFIG.h
478     o removed tools/genmake since it no longer works
479    
480    checkpoint51n_post
481    o modifications to make FREEZE flux visible to pkg/kpp
482      - moved surfaceTendencyTice from pkg/seaice to main code
483      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
484      - subroutine FREEZE now limits only surface temperature
485        (this means new output.txt for global_ocean.90x40x15,
486         global_ocean.cs32x15, and global_with_exf)
487    o added surface flux output variables to TIMEAVE_STATVARS
488    
489    checkpoint51n_pre
490    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
491    o added [#include "AD_CONFIG.h"] to all files that use the following
492      defines:
493      - ALLOW_ADJOINT_RUN
494      - ALLOW_TANGENTLINEAR_RUN
495      - ALLOW_ECCO_OPTIMIZATION
496    
497    checkpoint51m_post
498    o incorporating changes to get TAMC/TAF working in genmake2
499      - added new TAMC/TAF targets to the Makefile
500      - various cleanups related to package handling
501      - these changes should have no impact on the forward model
502    
503    checkpoint51l_post
504    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
505     - faster algorithm for cal_addtime.F
506     - higher precision arithmetic, where needed
507     - pkg/exf *startdate variables changed from calendar date to
508       model integration time
509    
510    checkpoint51l_pre
511    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
512    o enable to apply restoring on S & T only in a latitude band.
513    o update output (external_forcing_surf modif. change truncation errors)
514       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
515    
516    checkpoint51k_post
517    o change default to: useNHMTerms=.FALSE.
518     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
519       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
520     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
521        exp1, ideal_2D_oce
522     - change data file of oceanic exp (leave the results unchanged for now)
523       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
524    o set gravitySign automatically according to the vertical coordinate used
525      (and change sign: back to "logical" value: +1 when R increases downward)
526    o added an include barrier to the default CPP_OPTIONS.h and
527      removed the #include "PACKAGES_CONFIG.h" from it
528    o fix a bug in mom_fluxform (from chk51j_post)
529    
530    checkpoint51j_post
531    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
532    o adjusted some flow directives (dynamics, thermodynamics)
533    o added cubed-sphere case to test cost function
534    o heckpoint_lev?_directives.h now include
535      pkg-specific directives, whenever those are enabled.
536    o Moving pkg-specific flow directives to corresponding pkg
537      Moving pkg-specific differentiation list to corresponding pkg
538      Moving pkg-specific checkpoint-lev storing to corresponding pkg
539      ---> conventions are
540           - pkg_ad.flow
541           - pkg_ad_diff.list
542           - pkg_ad_check_lev?_dir.h
543    
544    checkpoint51i_post
545    o merge of the branch-genmake2
546      - knowingly breaks the older genmake
547      - automatic generation of all ALLOW_${PKG_NAME} defines
548      - new testreport supersedes older testscript
549    o large number of package inclusion and header cleanups
550    checkpoint51i_pre
551    
552    o new output for adjoin of global ocean vector invariant
553    o fix for checkpoint of thermodynamic seaice and bulk_force
554    o Steph gchem various cleanups
555    
556    checkpoint 51h_pre
557    o fixed some single quotes
558    o modify gchem pkg to be more versatile
559    o modifications to clean up dic pkg
560    o add pkg/cfc
561    
562    checkpoint51g_post
563    o provide links for ARPACK and ADM*TLM
564    o start removing verification/vero/
565    o update AD-related stuff
566      (in particular some IF-statements in model/src/ routines)
567    o adding to verification/global_ocean.90x40x15/ adjoint of
568      vector invariant setup
569    
570    checkpoint51f_post
571    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
572    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
573      of tracer Green's fucntions for ocean inversion project.
574    
575    checkpoint51f_pre
576    o Added on-the-fly spatial interpolation capability
577        "USE_EXF_INTERPOLATION" to pkg/exf.
578      - This is a temporary Cartesian-grid hack until
579        the super-duper ESMF coupler becomes available.
580      - See verification/global_with_exf/README for usage example.
581      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
582        flags and modified pkg/seaice accordingly.
583    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
584        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
585        non-local transport term.
586    
587    checkpoint51e_post
588    o pkg/mom_vecinv:
589      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
590      - add time-ave diagnostic of vorticity advection.
591    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
592    o atmospheric geopotential: - include water vapor effect;
593                                - use p^kappa in p* scaling.
594    o land pkg: read initial state from files.
595    o AIM : add stratospheric drag in the upper level
596    
597    checkpoint51d_post
598    o change function ILNBLNK (=> last non-blank char.) to return zero
599      (instead of the string length) when the string. char is empty
600    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
601    o modif's to restore TAMC compatibility
602      - avoid "_d" constructs in PARAMETER declarations
603      - avoid interrupting lines by comment lines
604    o Use cluster local disks for purely local I/O
605      vs. globally visible disks needed for ctrl stuff
606      (merged from ecco-branch)
607      - new active_file_loc... and mdsio_..._loc routines
608      - affected packages: autodiff, ctrl, grdchk, mdsio
609    
610    checkpoint51c_post
611    o introducing integer flag debugLevel
612      - debLevZero: suppress all output
613      - debLevA: standard
614      - debLevB: equivalent to current debugMode=.TRUE.
615    o introducing pathname variable mdsioLocalDir for mdsio
616      that can be specified at runtime
617      (relevant for cluster I/O to local disk)
618    `
619    >>>checkpoint51b_post
620    adjoint of ptracers
621    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
622    o extended state in checkpoint_lev?, etc.
623    o alternative ctrl/cost with tr1 or ptracer
624    o new comlev1_bibj_ptracers
625    o new ptracers.flow
626    o made ptracers_forcing same as external_forcing_s
627    o added verification for adjoint with ptracers
628      - adm. grdchk fail so far
629      - tlm. grdchk OK
630      - checked tapelev/comlev recomputations: OK
631    <<<checkpoint51b_pre
632    
633    checkpoint51a_post
634    o added code for biogeochemistry package
635      - new pkgs: dic, gchem
636      - new subroutine in ptracers
637    o modify code for biogeo packages
638      - in model/src and pkg/ptracers
639    
640    checkpoint51
641    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
642      - autodiff, ctrl, exf, grdchk, seaice
643      kept separate packages
644      - cost, ecco, obcs
645    o updating verification/internal_wave, verification/lab_sea
646      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
647    
648    checkpoint50i_post
649    o Preparing next differentiable checkpoint and sync
650      of MAIN vs. ecco-branch
651      - 1st step: this one is differentiable
652      - 2nd step: next(! not this) checkpoint will have updated packages
653                  from ecco-branch)
654    
655    checkpoint50h_post
656    o new package "land": provide surface BC for AIM.
657    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
658    o AIM: use true log-P extrapolation for near surface temp (= as in
659        F.Molteni paper) ; update aim.5l_cs output.
660    o New variable in PARM03 for more flexible pickups
661    o somewhat cleaned package initialisation sequence for
662      ctrl/ cost/ ecco/ in packages_... routines
663    
664    checkpoint50g_post
665    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
666      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
667      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
668        made the default because of faster convergence than ADI
669    
670    checkpoint50f_post
671    o exf totally restructured
672      - replaced all exf_set_ routines by one generic exf_set_gen.F
673        and made sure it's still differentiable
674      - split exf_getffields.F into new exf_bulkformulae.F
675      - exf_inscal_/exf_outscal_ suffixes consistent with field names
676      - updated adjoint/makefile and relevant verif. accordingly
677    
678    checkpoint50f_pre
679     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
680          + change Evap over land. (update aim.5l_cs output)
681     o added missing .cvsignores and made uniform across expts
682     o changed configuration of tidal_basin_2d expt
683     o added pkg/debug functions for tracing code in fatal crashes
684     o tidied pkg/monitor to use MONITOR_OPTIONS.h
685     o new fn in pkg/monitor to stop model if solution grows too big
686     o removed lots of single quotes from comments
687    
688    checkpoint50e_post
689    o make KPP work with PTRACERS
690     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
691       nearly a copy of kpp_transport_s
692     - there is no analogue to SurfaceTendencyS, so I have to use
693       gPtr(of the surface layer) instead
694    o add a new platform SunFire+mpi (SunFire 15000) to genmake
695    checkpoint50e_pre
696    
697    checkpoint50d_post
698    o change kpp output from multiple-record state files to single-record state
699      files analogous to write_state.F
700    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
701      analogous to the cg2d-related output.
702    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
703      so that writing to internal file fn (with length 512) fails.
704    checkpoint50d_pre
705    
706    checkpoint50c_post
707    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
708    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
709    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
710    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
711    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
712    
713    checkpoint50c_pre
714    Merging from release1_p13:
715    o bug fix for pkg/seaice dynamic solver
716    o Added SEAICE_initialHEFF to pkg/seaice
717    
718    checkpoint50b_post
719    o store u*,v* in gU,V instead of in guNm1,gvNm1
720    o in order to put the momForcing out of the Adams-Bashforth:
721      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
722      to timestep.F
723    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
724    o re-generate output for highly sensitive test-exp:
725       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
726    
727    checkpoint50b_pre
728    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
729    o corrected CPP option mismatch in exf_Bulk... functions for case
730      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
731    
732    checkpoint50a_post
733    o Bug fix for merging between c50 and KPP.
734      ikey was passed from thermodynamics to kpp_calc via
735      common block rather than being recomputed in kpp_calc,
736      in contradiction with new key itdkey.
737      New key ikppkey created, and tamc.h headers updated.
738    
739    checkpoint50
740    - 2nd step of merge with ecco-branch:
741      merge changes in ecco-branch back into main trunk
742    - bug fix in find_alpha
743    - more storing in gmredi_calc_tensor.F, kpp_routines.F
744    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
745    - merged some sliced AD support routines
746    
747    checkpoint49
748    merged from ecco-branch:
749    o exf:
750      - Enable initialisation of forcing fields to constant
751        (runtime) values.
752      - in exf_getffields.F
753        Reduce i-/j-loop to interior domain, discarding overlaps.
754        That also fixes wrong TAF-key computations for key_1, key_2
755        with bulf formulae.
756      - exf_init.F modify #ifdef for exf_init_evap
757      - exf_getffieldrec.F, ctrl_getrec.F
758        The following INT-usages are not safe:
759          fldsecs  = int(fldsecs/fldperiod)*fldperiod
760          fldcount = int(fldsecs/fldperiod) + 1
761        and were modified.
762    o autodiff: checkpoint_lev...
763      - updated storing for bulk formulae (some arrays were missing)
764      - added state for seaice package
765      - synchronized with main branch
766    o DIVA:
767      Modif.s in
768      - the_main_loop.F
769      - the_model_main.F
770      and added cost_final_restore.F cost_final_store.F
771      o With these changes, it is possible to fully separate
772        the first forward run to compute the cost function (mdthe_main_loop)
773        and adjoint runs over individual DIVA intervals (adthe_main_loop)
774        into separate model executions.
775        This enables better tuning of DIVA to given queue sizes.
776      o Loss of cost function value in consecutive DIVA runs is
777        fixed by storing to 'costfinal' file.
778      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
779        beginning/end of adjoint integration is accounted for.
780      The current changes apply to TAF-1.4.26.
781      TAF has one remaining bug, requiring one manual change
782      (see MITgcm manual).
783    o cal: synchronized between MAIN and ecco-branch
784    
785    checkpoint48i_post
786    o Changes to restore differentiability of code w.r.t. previous tag
787      (mostly adding new routines to make list and replacing
788      pressure by totPhiHyd).
789    o Updated and merged grdchk package
790      - has both ADM and TLM checks
791      - works for single- and multi-proc.
792      - output cleaned
793      - worked successfully for parallel DIVA
794    o genmake:
795      - Adding -platform=SP4
796      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
797    o Modif. for DIVA:
798      ctrl_unpack should not be called in intermediate DIVA interval.
799      (similar thing would apply for active files such as
800      tbar, sbar, psbar, which should not be reinitialised;
801      only relevant for ecco-branch)
802    
803    checkpoint48h_post
804    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
805    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
806    o Added SEAICE_initialHEFF to pkg/seaice
807    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
808    
809    checkpoint48g_post
810    --- EOS:
811    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
812      store total Potential in totPhyHyd for diagnostics & EOS.
813    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
814    --- Pressure/geopotential gradient:
815    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
816    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
817      ( changes results of global_ocean_pressure )
818    o NLFS + z-coord.: add eta*Rho' contribution.
819    o accurate phiHyd when using interface-W at the middle between 2 centers
820     ( changes results of ideal_2D_oce )
821    o includes r* 2nd term in potential gradient.
822    
823    checkpoint48f_post
824    Merging from release1_p12:
825    o Modifications for using pkg/exf with pkg/seaice
826      - improved description of the various forcing configurations
827      - added basic radiation bulk formulae to pkg/exf
828      - units/sign fix for evap computation in exf_getffields.F
829      - updated verification/global_with_exf/results/output.txt
830    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
831      (SBO) core products, including oceanic mass, center-of-mass,
832      angular, and bottom pressure (see pkg/sbo/README.sbo).
833    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
834      to avoid negative values in shallow regions.
835      - updated verification/natl_box/results/output.txt
836      - updated verification/lab_sea/results/output.txt
837    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
838    o Added useSingleCpuIO option (see PARAMS.h).
839    o Updated useSingleCpuIO option in mdsio_writefield.F to
840      work with multi-field files, e.g., for single-file pickup.
841    o pkg/seaice:
842      - bug fix in growth.F: QNET for no shortwave case
843      - added HeffFile for specifying initial sea-ice thickness
844      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
845    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
846      kpp_transport_t.F, forward_step.F, and the_main_loop.F
847    o pkg/seaice:
848      - adjoint-friendly modifications
849      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
850    
851    checkpoint48e_post
852    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
853    o dynamics: change definition of computational domain & adapt mom_fluxform
854      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
855    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
856        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
857        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
858        global_ocean.90x40x15 global_with_exf global_ocean_pressure
859        inverted_barometer solid-body.cs-32x32x1
860      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
861    
862    checkpoint48d_post
863    o in preparation for r*:
864     a) use pre-computed gradient of hydrostatic potential:
865        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
866     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
867        => affects results of glob_oce_pressure (different truncation error)  
868      update output.txt of ideal_2D_oce & global_ocean_pressure
869    
870    checkpoint48d_pre
871    o in preparation for r*:
872      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
873      pass the 2 comp. of the grad. as arguments to momentum S/R.
874      but for the moment, only used if it does not change the results.
875    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
876    
877    checkpoint48c_post
878    Modifications in treatment of initial flux forcing controls
879    to avoid extra storing of flux fields.
880    
881    checkpoint48c_pre
882    o Added tidal_basin_2d experiment (currently 1D!)
883    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
884    
885    checkpoint48b_post
886    o r* coordinate added in #ifdef NONLIN_FRSURF block.
887     (modification to pressure gradient not yet implemented)
888    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
889      (for U & V) that are used for vertical advection of momentum.
890    
891    checkpoint48a_post
892    o In preparation for r*, use temp. array to compute vertical transport
893       in flux-form momentum pkg. => change results of few test-exp.
894      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
895                        lab_sea, natl_box & plume_on_slope
896    
897    checkpoint48
898    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
899    
900    checkpoint47j_post
901    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
902    o moved adexch from forward_step to addummy_in_stepping
903    o added exch in ctrl_map_...
904    o aveFreq.=0. at end of cost_final to avoid overwrite in
905      reverse checkpointing loop
906    o Yet more changes in gmredi:
907      * adgmredi_calc_tensor
908        avoiding all recomputation of gmredi_slope_limit
909      * adgmredi_x/y/rtransport
910        added flag for excessive storing to avoid recomp. of
911        u/v/rtans, dTdx/y/z
912        -> this is not really necessary and very memory-consuming
913      * adgmredi_slope_psi:
914        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
915      * gmredi_slope_limit
916        re-activated full calculation of taperfct for case 'ac02'
917    o updating verification/ adjoints of carbon, global_ocean.90x40x15
918    
919    checkpoint47i_post
920    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
921    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
922      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
923    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
924    o gmredi: fix few bugs.
925    
926    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
927    This will be a good checkpoint to plug into the ecco-branch.
928    o few modif.'s to get latest version adjointed
929      (mainly kick out code in ini_linear_phisurf)
930    o modif's to run adjoint with exactConserv
931    o case GM_BOLUS_ADVEC should be cleaned
932      S/R gmredi_slope_psi should be cleaned
933    o verification/carbon now has exactConserv=.TRUE.
934    
935    checkpoint47g_post
936    o time-average AIM output: becomes independent from statvars time-average
937      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
938    o After TAF bug fix:
939      Tested adjoint of gmredi package.
940      Tests were done with checkpoint47 rather than with latest
941      checkpoint47f_post since the latter is broken for the adjoint
942      verification/carbon/ contains both ADM and TLM gradient checks.
943    Here they are, before they get changed/lost/stolen.
944    Mostly modif.'s to fix numerical sensitivities.
945    Gradient checks OK for
946    - GM_taper_scheme:
947      * clipping
948      * ac02
949      * linear
950      * glw91
951      * dm95
952      * ldd97
953    - GMREDI_OPTIONS:
954      * GM_VISBECK_VARIABLE_K
955      * GM_NON_UNITY_DIAGONAL
956      * GM_EXTRA_DIAGONAL
957      * GM_BOLUS_ADVEC
958    in conjunction with data.gmredi parameters to be checked in
959    in a few minutes under verification/carbon/code/
960    
961    checkpoint47f_post
962    Merging from release1_p10:
963    o modifications for using pkg/exf with pkg/seaice
964      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
965        and SEAICE_EXTERNAL_FLUXES
966      - pkg/exf CPP options EXF_READ_EVAP and
967        EXF_NO_BULK_COMPUTATIONS
968      - usage examples are Experiments 8 and 9 in
969        verification/lab_sea/README
970      - verification/lab_sea default experiment now uses
971        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
972    
973    checkpoint47e_post
974    o created a tag prior to creating a branch
975    
976    checkpoint47d_post
977    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
978      at the bottom boundary had an erroneous half slip boundary condition
979    o added bottom drag and no slip boundary condition capabilities to
980      oceanic pressure coordinates code
981    o added new verification experiment global_ocean_pressure, this experiment is
982      also described in the tutorial section of the manual
983    checkpoint47d_pre
984    
985    checkpoint47c_post
986    o Added a verification experiment for a global cubed-sphere ocean run
987      -  verification/global_ocean.cubed32x32x30
988      -  uses pkg/therm_seaice and pkg/bulk_forcing
989    
990    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
991    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
992      when using P-coordinate; only implemented for atmospheric config.
993    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
994      NOTES: requires option NONLIN_FRSURF to be "#define".
995    o update advect_xz/results/output.txt (left from checkpoint44g_post)
996    
997    checkpoint47b_post
998    Merging from release1_p9:
999    o pkg/seaice
1000      - removed GOTO's and added taf directives
1001      - double precision constants to reduce the g77 (Linux)
1002        to F77 (SGI) differences reported in release1_p8
1003    o tools/genmake
1004      - added SGI options
1005    o verification/testscript
1006      - updated to that of checkpoint47a_post
1007    o verification/global_ocean.90x40x15/input/eedata
1008      - modified for SGI f77 compatibility
1009    o verification/lab_sea
1010      - added description of sea-ice model
1011      - added missing matlab routines
1012      - added test of thermodynamics parallelization
1013    
1014    checkpoint47a_post
1015    o new pkg: aim_v23
1016     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1017       for now, keep the same surface forcing as before.
1018     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1019     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1020     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1021    o add diagnostic of surface correction term in monitor output
1022    
1023    o bulk_force and therm_seaice
1024    - Two packages:  bulk_force (Bulk forcing)
1025      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1026    - Earlier integration from Stephaine Dutkiewicz
1027      and Patrick Heimbach.
1028    - Two ifdef statements for compile time,
1029       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1030    
1031    checkpoint47
1032    differentiable version of checkpoint46n_post
1033    o bug fix in quasihydrostaticterms
1034    o * "clean" adjoint code (in terms of extensive recomputations)
1035        can now be obtained for all GMREDI options (i.e. for
1036        - GM_VISBECK_VARIABLE_K
1037        - GM_NON_UNITY_DIAGONAL
1038        - GM_EXTRA_DIAGONAL
1039        - GM_BOLUS_ADVEC )
1040      * However, wrong gradient check problem remains unsolved.
1041      * New CPP options have been introduced for different
1042        tapering schemes
1043    o external_fields_load now part of differentiation list
1044    o pressure needs multiple storing;
1045      would be nice to have store_pressure at beginning or
1046      end of forward_step, e.g. by having phiHyd global (5-dim.)
1047      (NB: pressure is needed for certain cases in find_rho,
1048      which is also invoked through convective_adjustment).
1049    o recomputations in find_rho for cases
1050     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1051    o #define ATMOSPHERIC_LOADING should be differentiable
1052    o ini_forcing shifted to begining of initialise_varia
1053    o Incorporating QNVS line search routines into MITgcm
1054      (this is separate code, and therefore not under pkg)
1055      lsopt/, optim/
1056    o Updated verification/carbon/
1057      - #define GM_VISBECK_VARIABLE_K
1058      - GM_taper_scheme    = 'ldd97'    
1059    
1060    checkpoint46n_post
1061    Merging from release1_p8:
1062    o verification/natl_box:
1063      updating new external_fields_load routine
1064    o New package: pkg/seaice
1065      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1066      The sea-ice code is based on Hibler (1979-1980).
1067      Two sea-ice dynamic solvers, ADI and LSR, are included.
1068      In addition to computing prognostic sea-ice variables and diagnosing
1069      the forcing/external data fields that drive the ocean model,
1070      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1071      The implied surface heat flux is then stored in variable
1072      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1073      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1074      non-local transport term.  Because this call precedes model
1075      thermodynamics, temperature under sea-ice may not be "exactly" at
1076      the freezing point by the time theta is dumped or time-averaged.
1077      N.B.: fairly large differences in accuracy occur across
1078            different platforms/compilers; comparison between
1079            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1080            generated output gives:
1081       T           S           U           V
1082      C D M    c        m  s        m  s        m  s        m  s
1083      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1084      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1085      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1086    
1087      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1088    o GAD:
1089      - generated new common blocks to account for call of
1090        same gad routines with differing traceridentities
1091        (needed to modify tracerIdentity indices in GAD.h)
1092      - generated separate common blocks for case useCubedSphereExchange
1093        (Department of Futurology)
1094      - parameter lists to gmredi_?transport: added tracerIdentity
1095      - added new key indices to tamc.h
1096    o external_fields_load:
1097      - added this routine to TAF list
1098      - needed to make some common blocks global and additional storing
1099        along the same lines as exf package (checkpoint_lev?_directives.h)
1100    o exf:
1101      updated external forcing package
1102      - bug fixes carried over from ecco-branch
1103        (missing OBCS_OPTIONS.h in two routines)
1104      - enable easy to use "no forcing".
1105      - added exf I/O for atmospheric loading
1106      - added exf I/O for runoff data
1107      - transfered scaling between exf <-> MITgcm to exf namelist
1108    o Adding new verification experiment global_with_exf.
1109      This verification experiment is almost identical to the
1110      global_ocean.90x40x15 experiment, except that it uses
1111      the exf (and cal) package instead of the
1112      external_fields_load routine (cf README file).
1113    
1114    checkpoint46m_post
1115    o modified testscript to return -- when there are no lines of "%MON" output
1116    o added new flag "quasiHydrostatic" for QH mode
1117      and new routine quasihydrostaticterms()
1118    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1119      New routine: mom_u_coriolis_nh()
1120    o fixed sign of non-hydrostatic metric terms in u and v equations.
1121      Depend on correct sign of gravitySign.
1122    o added work.pc* to .cvsignore in aim directories using ifc
1123    o introduced flag for controllin non-hydrostatic metric terms
1124    o removed gravitySign from PARM04
1125    o switched to g77/ifc from pgf77 in aim experiments
1126    
1127    checkpoint46l_post
1128    o made convective adjustment work with pressure coordinates:
1129     - changed the direction of k-loop in convective_adjustment.F for the
1130       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1131     - adjusted the reference pressure k-index in convective_adjustment.F
1132     - adjusted the convection condition in convect.F (in analogy to
1133       calc_ivdc.F)
1134     - convective_adjustment no longer computes anything on the halos
1135     - removed the warnings about negative salinity from find_rho.F and
1136       find_alpha.F; instead the new routine look_for_neg_salinity, called
1137       at the beginning of find_rho, find_alpha, and find_beta, does a
1138       check of the entire slice, if CPP-option
1139       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1140    checkpoint46l_pre
1141    
1142    checkpoint46k_post
1143    o fixed the verification/global_ocean.90x40x15 experiment:
1144     - new bathymetry (the world according to A., JMC, and M.)
1145     - new initial fields and forcing fields (*.bin files)
1146     - new POLY3.COEFFS (for the next release one should switch to a full
1147       equation of state: JMD95P or MDJWF)
1148     - fixed several errors and redundancies in the data file
1149     - experiment uses looped cells
1150     - added matlab directory with diagnostic scripts for plotting of output
1151    
1152    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1153     - read AIM physics parameters from a file (data.aimphys)
1154     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1155    
1156    checkpoint46j_post
1157    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1158    o move wVel computation at the end of the time step, in S/R integr_continuity
1159    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1160    o update timeave pkg for wVel diagnostic.
1161    checkpoint46j_pre
1162    
1163    checkpoint46i_post
1164    o Clean up AIM package (and keep the results unchanged):
1165      include CPP_OPTION and use IMPLICT NONE in all routines ;
1166      declare all the variables _RL ; use _d 0 for all numerical constants.
1167      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1168    
1169    checkpoint46h_post
1170    o cleaned up the use of rhoNil and rhoConst.
1171      - rhoNil should only appear in the LINEAR equation of state, everywhere
1172        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1173        and the dynamical equations are all divided by rhoConst
1174    o introduced new parameter rhoConstFresh, a reference density of fresh
1175      water, to remove the fresh water flux's dependence on rhoNil. The default
1176      value is 999.8 kg/m^3
1177    o cleanup up external_forcing.F and external_forcing_surf.F
1178      - can now be used by both OCEANIC and OCEANICP
1179    checkpoint46h_pre
1180    
1181     Added code to convert surface volume flux (fresh water) into
1182     a mass flux when using P coordinates in the ocean (OCEANICP).
1183     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1184    
1185    checkpoint46g_post
1186    o Include a new diagnostic variable phiHydLow for the ocean model
1187      - in z-coordinates, it is the bottom pressure anomaly
1188      - in p-coordinates, it is the sea surface elevation
1189      - in both cases, these variable have global drift, reflecting the mass
1190        drift in z-coordinates and the volume drift in p-coordinates
1191      - included time averaging for phiHydLow, be aware of the drift!
1192    o depth-dependent computation of Bo_surf for pressure coordinates
1193      in the ocean (buoyancyRelation='OCEANICP')
1194      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1195        Theta, Salinity, and Pressure in the parameter list. This routine is
1196        presently contained in find_rho.F. This routine does not give the
1197        correct density for 'POLY3', which would be a z-dependent reference
1198        density.
1199    o cleaned up find_rho
1200      - removed obsolete 'eqn' from the parameter list.
1201    o added two new verification experiments: gop and goz
1202      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1203    checkpoint46g_pre
1204    
1205    checkpoint46f_post
1206    o Enable tangent linear (forward mode) gradient checks:
1207      - extended active file handling to g_... files
1208      - added TANGENT_SIMULATION to theSimulationMode
1209      - extended grdchk package accordingly
1210    o added tangent linear setup in verification/carbon/code_ftl
1211    o added adjoint setup in verification/front_relax/code_ad
1212    
1213    checkpoint46e_post
1214    o Added new equation of state -> MDJWF
1215      - EOS of McDougall et al., 2002, JAOT, submitted
1216      - caveat: the equation of state is only valid for a smaller (more
1217        realistic?) range of values than JMD95P/Z and UNESCO
1218      - added masks to the calculation of pressure in store_pressure
1219      - added more check values for density in check_eos (ini_eos.F), some of
1220        the old check values are out of the range of the MDJWF-eos, so don't
1221        expect perfect matches for those
1222    checkpoint46e_pre
1223    
1224    checkpoint46d_post
1225    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1226      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1227      case of pressure coordinates. eosType='JMD95Z' in
1228      combination with buoyancyRelation='OCEANICP' now causes an error.
1229    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1230      in find_alpha/beta.
1231    checkpoint46d_pre
1232    
1233    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1234      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1235    
1236    checkpoint46c_post
1237    o Changes necessary for ocean in p-coordinates
1238     -  Added new buoyancy relation = 'OCEANICP'
1239     -  Added new parameters = gravitySign (this used to be contained inside
1240        the factor dRdZ which I added when we first switched to R coordinates).
1241     X GM/Redi is not compatible (yet)
1242     X bottom drag and no-slip need to be debugged.
1243    checkpoint46c_pre
1244    
1245    checkpoint46b_post
1246    o Added new equation of state -> JMD95Z and JMD95P
1247      - EOS of Jackett and McDougall, 1995, JAOT
1248      - moved all EOS parameters into EOS.h
1249      - new routines ini_eos.F, store_pressure.F
1250    o Added UNESCO EOS, but not recommended because it requires
1251      in-situ temperature (see JMD95)
1252    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1253      unesco.f to be used with POLY3
1254    checkpoint46b_pre
1255    
1256    checkpoint46a_post
1257    o Added (atmospheric) pressure loading
1258      - new field in FFIELDS.h, etc...
1259      - new cpp flag ATMOSPHERIC_LOADING
1260    o Changed hFacC to _hFacC in calc_phi_hyd.F
1261    o Added SHORTWAVE_HEATING to some files for consistency
1262    checkpoint46a_pre
1263    
1264    checkpoint46
1265    further merges from release1_p5
1266    o new ctrl package
1267      - adopted from ECCO environment to enable optimization
1268      - added Eliassen Palm fluxes to controls
1269    o added Eliassen Palm flux controls to gradient check package
1270    o cost package
1271      - Compatible with new ctrl package
1272      - added Eliassen Palm cost hooks
1273      - modif's of existing cost functions
1274    o Adjoint-related bug fixes in kpp:
1275      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1276      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1277    o autodiff package
1278      - flow directives:
1279        + new for S/R do_the_model_io
1280        + enhanced for S/R checkpoint
1281        + new gmredi.flow
1282      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1283        disable adcommon.h/g_common.h by default.
1284      - fixed problem for adjoint of global_max
1285    o modified verification/carbon/
1286    o New setup for adjoint of global_ocean
1287    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1288    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1289    o incorporated hooks for sponge layer code (external_forcing.F)
1290    
1291    checkpoint45d_post
1292    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1293    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1294      (affects plume_on_slope "cg2d" output)
1295    o add new parameter deltaTfreesurf for free-surface time stepping
1296    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1297    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1298    o change phiMin in exp1 (to agree with documentation)
1299    o add new flags:
1300     - T,S forcing inside/outside Adams-Bashforth
1301     - turn off temp,salt advection and/or forcing
1302     - for each tracer, define internal flag for multiDimAdvection & A-B
1303    o monitor: change definition of KE to check conservation of Energy
1304    
1305    checkpoint45c_post
1306    o Removed f90 comments ("!")
1307    o Modified initialisations to enable exf package for MITgcm
1308      (without invoking ECCO_PACKAGE).
1309    o modifications to gradient check package (Martin Losch)
1310      - enable centered differences
1311      - modified format of standard output
1312    
1313    checkpoint45b_post
1314    o cleaned exchange calls in cg2d
1315    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1316    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1317      to configure barotropic setup (Martin Losch)
1318    o moved some initialisations within bi,bj loop in dynamics
1319      (TAF flow dependency)
1320    o in initialise_varia, moved call packages_init_variables
1321      before convective_adjustment_init
1322      (corresponding adjustment of TAF tape initialisation).
1323    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1324    
1325    checkpoint45a_post
1326    o compute Rho over the whole domain (extend iMin,jMin indices)
1327    o specific exchange for X-slice domain (case Ny=1)
1328    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1329    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1330    
1331    checkpoint44h_post = checkpoint45
1332    o Fix to restore differentiability:
1333      place at which packages_init_variables is called in
1334      initialise_varia is crucial for reverse control flow.
1335    o modifications in GMRedi to enable stable adjoint
1336      (corresponding modif's in thermodynamics, dynamics)
1337    o added missing hook for sponge layer code in external_forcing
1338    o modified test cost functions
1339    o storing in gad_advection (plus removal of write(0,*)!
1340    o missing headers TR1.h added in convective_adjustment routines
1341    o errorMessageUnit set non-equal zero in eeboot
1342      (conflict on some platforms, e.g. IBM SP3)
1343    o modified carbon verif.
1344    
1345    checkpoint44h_pre
1346    o vertical grid option: allow to put the Interface at the middle between
1347      2 cell-centers ; replace delZ in pkg/kpp by drF.
1348    o GM Advective form: Tracers are advected using the residual transport (=
1349      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1350    
1351    checkpoint44g_post
1352    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1353      results) ; ifdef missing in thermodynamics.F
1354    
1355    checkpoint44f_pre,checkpoint44f_post
1356    o added PTRACERS package
1357      This allows an arbitrary number of passive tracers to be integrated
1358      forward simultaneously with the dynamicaly model.
1359      + Implemented so far:
1360        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1361        - I/O and checkpointing
1362        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1363      + Not implemented so far:
1364        - KPP
1365        - OBCS
1366      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1367        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1368        line in data.pkg.
1369      + This package is disabled by default since it increases storage.
1370    
1371    
1372    o testscript: added -cleanup option
1373    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1374                 b) enable to filter 2D fields.
1375    
1376    checkpoint44e_pre,post
1377    o re-wrote convective adjustment to use pre-calculated weights
1378      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1379      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1380      Original calls to convect() still in place.
1381    
1382    chkpt44d_pre,post
1383    o added missing EXCLUDE_MONITOR flags
1384    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1385      (incompatible typ in MIN/MAX expressions caused problems
1386      on IBM SP3)
1387    o in genmake added variable MAKEDEPEND
1388      plus resetting for case SunOS
1389    o added timer_stats.c routine for IBM SP3
1390    o removed variables in dynamics
1391    !!! I forgot to create tag chkpt44d_pre !!!
1392    !!! But chkpt44d_pre = chkpt44c_post    !!!
1393    
1394    o real fresh water flux implemented with non-linear free-surface.
1395    
1396    chkpt44c_pre,post
1397    o few fix (mask in shap_s2, EmPmR in external_field_load,
1398      USE_NATURAL_BCS in solve_for_P);
1399    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1400    
1401    checkpoint44b_pre/_post
1402    o merge of relevant stuff from the ecco-branch:
1403      - genmake: removed $S64 overwrite for case SunOS
1404      - pkg/exf: update and corrections for field swapping and obcs
1405      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1406                  harmonized between ECCO and MITgcm
1407      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1408                      updated checkpointing_lev... lists for obcs
1409      - model/src: minor changes in forward_step, plot_field
1410                   added directive for divided adjoint in the_main_loop
1411      - pkg/mdsio: added mdsio_gl_slice
1412    
1413    o check parameters & config (chkpt44a_pre,post)
1414    o OBC and NonLin_FrSurf.
1415    
1416    checkpoint44
1417    o fix bug in mom_vi_del2uv
1418    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1419    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1420    o update AIM experiments (NCEP input files)
1421    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1422    o added some stuff for AD
1423    
1424    checkpoint43
1425    o added two new advection tests
1426    o added global 4x4 degree ocean test
1427    o added test of H&S94 with free surface on cube
1428    o some final mods for gradient check, adjoint,...
1429    
1430    checkpoint42
1431      Fixed AD-related problems:
1432    o Store directives up-to-date with re-arranged Adams-Bashforth
1433      (mainly thermodynamics.F)
1434    o New store directives for multi-dim. advection schemes
1435      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1436      * new common block and key passkey
1437      (mainly gad_advection.F)
1438    o Modified store directives for split of dynamics/thermodynamics
1439      for the case ALLOW_KPP
1440    o Cleaned argument list for timestep_tracer.F
1441    
1442    checkpoint41
1443    o re-formatted/added comments in prologues of key subroutines
1444      to work with protex
1445    
1446    checkpoint40
1447    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1448    o added FLT (floats) package from Arne along with demo. experiment
1449    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1450      implementation of forward-in-time forcing terms
1451    o more mods for non-linear free-surface including new variable
1452    o modified multi-dim method to work on cube
1453    o bug fix in KPP (from DM)
1454    
1455    checkpoint40pre9
1456    o added DST advection schemes
1457    o fix MPI bug on SGI's
1458    o modifications for non-linear free-surface
1459    o fixed conditionals for fixed flow/passive tracer only mode
1460    o added tension/strain form of stress tensor
1461    o changes to commenting of arguments for TAF/TAMC
1462    o added/updated many matlab scripts
1463    o added multi-dimensional advection method for tracers
1464      
1465    checkpoint40pre8
1466    o new package rw/
1467      Added method for dumping intermediate local arrays:
1468      mdsio_writetile - same as mdsio_writefield except works from inside
1469                        bi,bj loop
1470      mdsio_writelocal - same as mdsio_writetile except works for local
1471                         arrays
1472      write_local_r? - higher-level wrapper for mdsio_writelocal
1473      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1474      Example given at end of mom_vecinv.F that dumps some local arrays.
1475    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1476      control flux-form versus vector invariant code.
1477      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1478      or genmake -DISABLE ...
1479    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1480      (additional storing is now needed for case vecinv;
1481      currently nothing implemented to switch this storing off
1482      in case fluxform is used since no CPP flag available).
1483    
1484    checkpoint40pre7
1485    o bug fix in dynamics.F
1486      calc_viscosity called before k=1,Nr loop.
1487    o added some #ifdef's ALLOW_PASSIVE_TRACER
1488    o cleaned initialisations in ctrl_map_ini
1489      related to TAF
1490    
1491    checkpoint40pre6
1492    o split dynamics into thermodynamics & dynamics
1493    o corresponding split of calc_diffusivity into
1494      calc_diffusivity, calc_viscosity
1495      (kpp_calc_diff, kpp_calc_visc).
1496    o Added diffkr, kapgm to control variables
1497    o bug fix in gmredi_slope_limit for ldd97
1498    
1499    checkpoint40pre5
1500    o proper initialization of Adams-Bashforth time stepping
1501      + uses forward step for very first step of model (iter=0)
1502    o re-generated *all* output since almost all output is modified by this
1503      change (sorry but we've been putting this one off for about 2 years)
1504      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1505        *not* regenerated since they are already out of date and I don't
1506        want to create the impression that they are suddenly working.
1507    o removed KAP stuff for DEC's
1508    o modified/added many .cvsignore files in */code and */input
1509    o added new expt "solid-body.cs-32x32x1"
1510      + this uses an alternative form of ini_curvilinear_grid.F which
1511        is not necessarily any better than the current one...
1512    
1513    checkpoint40pre4
1514    o added re-initialisations of utrans,vtrans,rtrans in
1515      calc_common_factors which are crucial for TAF.
1516    o extended iMin,jMin range for calc_common_factors,
1517      calc_diffusivity
1518    o added option ALLOW_PASSIVE_TRACER
1519    o a few minor updates and fixes
1520    
1521    checkpoint40pre3
1522    o created calc_gtr1.F for gad package
1523    o split the_main_loop and re-introduced forward_step
1524    o some recomputations of nIter0 for TAMC
1525    
1526    checkpoint40pre2
1527    o Updated to latest branch of AJA, JMC
1528    o Added gradient check package
1529    o Added routines for passive tracer handling
1530    o Added carbon sequestration sensitivity experiment
1531    
1532    checkpoint39
1533     o Modifications and fixes to support TAMC
1534       (mainly missing or wrong directives)
1535     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1536       in addummy_in_stepping
1537     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1538     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1539     o Included following packages:
1540       cal: calendar
1541       exf: external forcing
1542       ecco: essential routines to control use of cal, exf
1543             (NB: this is not the full ECCO environment)
1544     o disabled some packages by default in genmake
1545    
1546    checkpoint38
1547     o see notes_c37_adj.txt
1548     o corrected wrong layer index in external_forcing_t
1549     o replaced the_main_loop/forward_step by the_main_loop
1550     o removed forceoutput from write_state
1551       (replaced criteria for initial/final state)
1552     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1553    
1554    checkpoint37
1555     o mdsio.F routine split and packaged in pkg/mdsio
1556       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1557        used unless genmake -disable=mdsio)
1558     o allow a more precise surface-geopotential gradient for the atmosphere
1559       taking into account the change in space of Alpha (=1/rho) at the surface.
1560     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1561       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1562     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1563       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1564       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1565     o Time-Average diagnostics defined as a pseudo package "timeave".
1566     o pickup files : old pickup (before c35) did not work with new code (c35
1567       and after) unless activating 2 commented lines in initialise-varia.
1568     o Non-Hydrostatic pickup file Pb fixed.
1569     o bug with Rigid-lid version (since c35) fixed.  
1570    
1571    checkpoint36
1572     o implement Crank-Nickelson barotropic time-stepping
1573     o recover Time-Average diagnostics
1574     o fix Pb in checkpoint (PR#19)
1575     o AIM become a standard package ; clean unused CPP_kees
1576    
1577    checkpoint35
1578     o subtantial rewrite of dynamics.f
1579     o allows staggered time-stepping
1580     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1581     o added bottom drag (linear + quadratic)
1582    
1583    checkpoint34
1584     o Modified exchange routines for correct reverse simulation.
1585     o Added verification output to comply with bug fix in impldiff.F
1586       as of c33 (exp2, natl_box).
1587     o Corrected store directives in dynamics.F
1588     o Corrected array boundaries in impldiff.F
1589     o Corrected array dimensions in gmredi.
1590       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1591     o Added routine GLOBAL_SUM_INT to global_sum.F
1592     o Added mdsio_gl.F for ECCO purposes.
1593    
1594    checkpoint33
1595     o Fixed bug in lower BC in impldiff.F
1596     o Fixed confusion about units of forcing arrays in FFIELDS.h
1597       namely Fu,Fv,Qnet,Qsw,EmPmR:
1598       - Removed verification/natl_box/code/external_fields_scale.F
1599         (did not differ from that in model/src)
1600       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1601         (see FFIELDS.h for description)
1602       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1603         kpp_calc.F and kpp_transport_t.F
1604       - Removed model/src/external_fields_scale.F and calls to it
1605       - verification/natl_box uses flux data with "atmospheric" sign so
1606         a special version of external_fields_load.F is used to
1607         change the data as it's read in. This way, the arrays
1608         have the right units and signs at all times tha a user could
1609         possibly use them.
1610     o Corrected genmake to delete a temporary file during configuration
1611    
1612    checkpoint32
1613     o Scaling of forcing fields moved from external_forcing.F to
1614       external_fields_scale.F, called directly after loading fields.
1615     o Surface relaxation terms added to surface tendency fields in
1616       extra subroutine.
1617     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1618       fields.
1619     o Changes in GMRedi to comply with packaging structure.
1620     o Modifications and bug fixes in KPP package.
1621     o Verification experiment for KPP added (verification/nat_box/)
1622    
1623    checkpoint31
1624     o Packages interface brought in line with defined standard
1625       -> new routines packages_...F
1626       -> changes in initialise_fixed.F, initialise_varia.F
1627       -> enables initialisation interface for ECCO package
1628     o Rescaling of external forcing fields immediately after read
1629       (removed from external_forcing.F)
1630       -> new: surface_fields_scale.F
1631       -> affects ini_foorcing.F, external_fields_load.F
1632     o Computation of surface tendencies before tendency updates.
1633       -> new: external_forcing_surf.F
1634     o Change of variable names useGMRedi, useKPP, useECCO
1635     o Further changes in dynamics.F, impldiff.F for TAMC
1636     o Tested for experiments 0, 2, 4.
1637       - not yet tested for GMRedi.
1638       - not yet tested for KPP.
1639    
1640    checkpoint30
1641     o Updates for OBCs
1642     o New experiment for test OBCs (internal_wave)
1643     o New output.txt in verification/exp4/results/
1644     o Updates for KPP: calculation of viscosity corrected, new variables
1645       kpp_dumpFreq and kpp_taveFreq
1646     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1647       and entry for T90 in genmake
1648    
1649    checkpoint29
1650     o packaged KPP and GM/Redi
1651    
1652    checkpoint28
1653     o Corrected initialization of hFacMin for difference vertical coordinates
1654     o Modified calculation of partial cell thickness to more robust algorithm
1655     o config_summary.F: replaced write_1D_... by write_0D_...
1656       read_write.F: added subroutines write_0D_...
1657     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1658       included some initialisations required for TAMC.
1659     o routine calc_isoslopes: modified sqrt computation to make it
1660       differentiable for zero argument.
1661     o routines dynamics, impldiff:
1662       included store directives and tape key computations required for TAMC.
1663     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1664    
1665    checkpoint27
1666     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1667       formulation works properly with variable resolution.
1668     o restructured the calling tree between the_model_main() and dynamics()
1669     o split initialise() into initialise_fixed() and initialise_varia()
1670     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1671       in new routine ini_psurf()
1672    
1673    checkpoint26
1674     o moved some #ifdef in optional routines to encompass everything
1675       except the argument declarations. This was using up some memory.
1676     o fixed macros like _ADT to work with both versions of Linux cpp
1677     o cleaned up some unused and uninitialized variables
1678       (helps when debugging with strict compile options)
1679     o split up CPP_EEOPTIONS.h into options and macros
1680       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1681     o patch for 2 processor JAM mode
1682    
1683    checkpoint25
1684     o updates for OBCs and NH
1685     o dramatically reduced memory usage
1686     o added "JAM" routines for use on Artic network
1687     o parameterization of convection by implicit vertical diffusion
1688     o added a diagnostic of convective index
1689     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1690       (this is was partly for OBCs and NH but also in anticipation of
1691        an explicit free-surface option)
1692     o initial state input files for U and V
1693    
1694    checkpoint24
1695     o Removed some spurious "REAL"s
1696     o Updated KPP to latest version from JPL
1697     o Added a COS(latitude) in horizontal viscosity
1698    
1699    checkpoint23
1700     o Added del^4 diffusion for salt and temperature
1701     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1702    
1703    checkpoint22
1704     o Made many small changes: implicit none, format(i5), etc...
1705     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1706    
1707    checkpoint21
1708     o Introduced new I/O package that supports direct-access records (mdsio.F)
1709     o Split-up mid-level I/O routines
1710     o Updated input data for experiments 0,1,2,4 and 5
1711     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1712    
1713    checkpoint20
1714     o Tidied up open-boundaries some more
1715     o Added non-hydrostatic code
1716     o Fixed some input data
1717     o Modified MPI start-up to work in "coupled" context.
1718    
1719    checkpoint19
1720     o Tidied up directory structure for verification experiments.
1721     o Added new code for open boundaries.
1722     o Corrected advective terms near boundaries.
1723     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1724     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1725     o Split default parameters out of ini_parms.F into set_defaults.F.
1726    
1727    checkpoint18
1728     o Further changes for optional code generation with
1729       CPP - ugh!
1730    
1731  checkpoint17  checkpoint17
1732   o Beginning to incorporating modularity   o Beginning to incorporating modularity
1733     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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