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revision 1.57 by jmc, Thu Jan 31 14:53:22 2002 UTC revision 1.322 by jmc, Tue Jul 6 02:44:27 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6  next checkpoint:  checkpoint54a_post
7    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
8    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
9    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
10    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
11      + internal_wave (shift in writing cg2d_ini_res)
12    checkpoint54a_pre
13    
14    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
15      - modified verification/lab_sea and natl_box_adjoint accordingly
16    
17    checkpoint54
18    checkpoint53g_post
19    o prepare splitting of thermodynamics: store convect.counter in common block
20    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
21      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
22    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
23    o new parameter "nShapS": allow to treat differently S from T (nShapT)
24    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
25    o restore adjointability
26    
27    checkpoint53f_post
28    o modifications that affect AIM experiment results (update output.txt):
29      - no advection of S at top interface Nr (pkg/generic_advdiff)
30      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
31    o AIM pkg:
32      - include stability function into surf.Flux derivative relative to Tsurf
33      - calculate clear-sky radiation & surface temp. change (for diagnostics)
34    
35    checkpoint53e_post
36    o merged cylindrical coord configuration
37    o added rotating_tank experiment
38    checkpoint53e_pre
39    
40    checkpoint53d_post
41    o faulks upgraded: re-generate output.txt that have changed:
42       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
43    o Added Bryan and Lewis, 1979, vertical diffusivity profile
44    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
45    o added Sadourny discretization of Coriolis
46      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
47      - re-enabled use of omega3 (useAbsVorticity)
48    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
49      vector-invariant equations
50      - note: does *NOT* yet use same variable visc. for no-slip BC's.
51    o recoded the lateral boundary conditions for non-hydrostatic w, this time
52      hopefully without new bugs
53      - still to do: biharmonic friction for non-hydrostatic w
54    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
55    o regenerated output for global_ocean_ebm (using -ieee)
56    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
57      of mom_common/
58      - simple re-arrangement of instructions within computing loop
59    checkpoint53d_pre
60    
61    checkpoint53c_post
62    o new version of coupler for AIM+thSIce and Ocean models
63     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
64     - land: change Evaporation of snow
65     - aim with thSIce: fix bug in snow-precip.
66    o changes to calc_gw.F
67     - bug fix for w^2 term near the bottom boundary
68     - (hopefully) improve the lateral slip boundary condtions for use with
69        partial/looped cells
70      - because the bug fix changes two verification experiments anyway (exp5
71        and plume on slope), change the lateral boundary condition from half slip
72        to the value of no_slip_sides
73    o ebm package wasnt quite up to the parallel task. Fixed that.
74    o Adjoint of EBM package + verification
75      * TLM OK
76      * ADM not sufficient accuracy yet (needs further testing)
77    
78    checkpoint53b_post
79    o Commiting new energy balance model to repository
80      * package is pkg/ebm
81      * verif. is verification/global_ocean_ebm
82      * references are in ebm_driver.F
83    C      * X. Wang, P. Stone and J. Marotzke, 1999:
84    C        Global thermohaline circulation. Part I:
85    C        Sensitivity to atmospheric moisture transport.
86    C        J. Climate 12(1), 71-82
87    C      * X. Wang, P. Stone and J. Marotzke, 1999:
88    C        Global thermohaline circulation. Part II:
89    C        Sensitivity with interactive transport.
90    C        J. Climate 12(1), 83-91
91    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
92    C        Destabilization of the thermohaline circulation
93    C        by atmospheric eddy transports.
94    C        J. Climate 7(12), 1870-1882
95    o Will need long integration testing.
96    checkpoint53b_pre
97    
98    o created pkg/mom_common in preparation for variable viscosity code
99    o renamed and split ini_mnc_io
100    o pkg/land: only liquid water can diffuse or run-off
101    o AIM using land: soil wetness availability account for snow
102    o added printMapIncludesZeros to EEPARMS namelist
103    
104    checkpoint53a_post
105    o restore TAMC compatiility for exf_constants.h
106      (no usage of _d in .h)
107    o Additional storing in KPP in an attempt to fix
108      TAMC problem with adjoint of KPP code.
109      (no success...)
110      Identical code works fine with TAF.
111    o Fixed verification/natl_box_adjoint experiments.
112      Initial conditions for Experiments 4 and 5 are now
113      set to "SEAICE_initialHEFF=0", which is more reasonable,
114      and hence gives results closer to that of Experiment 2.
115      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
116    
117    checkpoint53
118    o stable checkpoint with up to date adjoint
119      TLM tests only run for 1st grdchk at the moment. Its unclear if
120      this is a code problem or a problem with resetting code for g_
121      variables that is being autogenerated wrong.
122      Otherwise:
123       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
124       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
125         are both still in chaos following their security messes.
126    
127    checkpoint52n_post
128    o various build (mostly genmake2) changes including:
129      - ability to build/run more easily within Cygwin and MacOS X
130      - more complicated Makefiles with a stronger dependence on Gnu Make
131    o pkg/seaice modifications
132      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
133        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
134        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
135      - changed proxy for geostrophic velocity and updated
136        verification/lab_sea/results/* accordingly
137      - removed ADI dynamic solver from pkg/seaice
138      - replaced all occurrences of 1/CSTICE or 1/CSUICE
139        they caused a segmentation fault under certain circumstances
140      - removed unused field WATR
141    o bug fix in exf-package:
142      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
143         now reflect that.
144    o small fixes in the cal-package:
145      - set reference date to first of January for the 'model'-calendar
146      - failing of cal_CheckDate in cal_FullDate now actually results in a
147        warning
148    o small modifications in exf-package to increase flexibility:
149      - change climtempfreeze from a constant to a runtime parameter that
150        is specified in data.exf_clim (default = -1.9)
151      - introduce runtime parameter windstressmax (default = 2.0) that is
152        specified in data.exf
153    o fix in pkg/thsice:
154      - update Evap (Tsf changes) to be consistent with Latent heat flux
155      - maintain snow precipitation unchanged (even if Tsf >=0).
156     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
157    
158    checkpoint52m_post
159    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
160      this does not change any of the results, because myIter=0 in swfrac always
161      lead to jwtype=2 (the default anyway), but the call makes little sense
162      as a default
163    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
164    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
165      atmospheric model (AIM) to use it ; add a "slab ocean" component.
166    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
167    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
168    o extending useSingleCpuIO option to work with new exch2 I/O format
169      - old-style, missing-tile I/O is still accessible by defining CPP
170        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
171    o monitor package can write to NetCDF files and/or STDOUT
172    o fix re-definition bug in MNC_GRID_INIT_ALL()
173    o doc/api_reference added
174      - a framework for building an API Reference Manual using all
175        the "protex" comments embedded in the code
176      - see pkg/generic_advdiff, pkg/mnc for examples
177    o MNC:
178      - make myThid the last argument for all subroutines
179      - new default for the grid files: NO halos
180      - add useMNC and other run-time flags
181      - separate per-file-group handling of the unlimited dimension
182      - early initialization of MNC w/ flags read at the eeboot stage
183        and lookup tables set in initialize_fixed
184      - write all MNC output to a freshly-created directory
185    o thermodynamics sea-ice (thsice) is now tested with testreport.
186    o test exp. advect_cs: use the standard cs32 grid ; update output.
187    o Added functionality to grdchk:
188      pick global i,j,k position (or nearest wet) where to perform check.
189    
190    checkpoint52l_post
191    o new land formulation:
192      a) use ground enthalpy as prognostic variable to ensure exact
193         energy conservation.
194      b) account for water temperature and for latent heat of freezing
195         in all processes (rain, run-off, ground storage)
196      c) compute surface and ground temperature implicitly.
197    o aim_v23 modification for new land model:
198      a) Treat separately land / ocean / sea-ice surface fluxes
199         to allow implicit computation of land & sea-ice surface temp.
200      b) add snow precipitation.
201    checkpoint52l_pre
202    
203    o fix problem (when 1 tile is empty) in min/max monitor.
204    o fix bug in timeAve (u,vZetatave in common block)
205    o no restoring terms under ice for pkg/seaice
206    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
207    o bug fix for pkg/seaice pickups
208    o change MNC call locations and add coordinate attributes
209    o mask vorticity at the corner ; affects global_ocean.cs output
210    o fix ini_curvilinear_grid ; test CS experiments with mpi
211    o aim.5l_cs: modify sea-ice fraction input file ; update output
212    o exf: Adding simple range check routine for exf fields after read
213    
214    checkpoint52k_post
215    o removed top-level directory "diags"
216      - we migrated these functions to pkg/timeave a long time ago
217    o fixed bug introduced in pkg/monitor
218    o accuracy ctrlprec = 32 insuffient for gradient checks using
219      averaged fields (I/O via cost_averages)
220      -> use ctrl.h in active_file*.F to control I/O precision.
221    o paramter list of CALL ADTHE_MAIN_LOOP
222    o added initial do_the_model_io to ecco
223    o set all ...Freq to zero after cost_final
224      taveFreq, dumpFreq, pChkptFreq
225    o MAIN and ECCO differentiability restored
226    
227    checkpoint52j_post
228    o fix nchklev in tamc.h for global_ocean...
229    o Bringing flow and store directives up-to-date
230    o Really weird thing!
231      call do_the_model_io from the_main_loop with parameters
232      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
233      TAF places a faulty re-call of initialise_varia
234      after cost_final call which should not be there!
235    checkpoint52j_pre
236    
237    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
238      error messages
239    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
240    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
241      debug output
242    o modfied mdsio_writefield.F to handle non-global files under exch2
243    o update AIM Cubed-Sphere exp (aim.5l_cs):
244      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
245    o update AIM Equatorial Channel exp:
246      use standard aim_v23 pkg and change the SST fields to be more realistic.
247    o globalFile now works with exch2
248    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
249      mon_vort3.F to make exch2 friendly with >1 tile per cube face
250    o limit timeave output for hi-res integrations
251    
252    checkpoint52i_post
253    o removed CPP_EEOPTIONS.h from verification/*/code
254    o updated the tiling for global_ocean_pressure
255    checkpoint52i_pre
256    
257    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
258      the old pkg/aim).
259    
260    checkpoint52h_pre
261    o shortened offending lines in exch2_send_rx?.template
262    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
263    o genmake2: add build & execute test for NetCDF code
264    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
265      old grid files, moved CPP_EEMACROS.h to pkg/exch2
266    o added useSingleCPUIO flag to monitor.F and mon_out.F
267    o added temporary hack for sea-ice dynamics on the cube:
268      metric terms are ignored and it is assumed that
269      there is no sea-ice on cube faces 1, 2, 4, and 5.
270    
271    checkpoint52f_post
272    o added exch2 cube routines to pkg/exch2
273    o modified hs94.cs-32x32x5 to use it
274    o added new grid files to hs94.cs-32x32x5
275    checkpoint52f_pre
276    
277    checkpoint52e_post
278    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
279      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
280    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
281      to work with implicit vertical advection and AB ;
282    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
283    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
284     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
285    checkpoint52e_pre
286    
287    o fix bug in impldiff when Nr=1 or Nr=2.
288    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
289    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
290    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
291      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
292    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
293    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
294    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
295    
296    checkpoint52d_post
297    o re-tiled many expts to allow comparison in multi-processor mode
298      - updated output accordingly
299      - changed hs94.128x64x5 to use intial T from file rather than use the
300        random number generator
301    o add infrastructure in model routines for fizhi and gridalt packages
302    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
303    o changes to permit hi-res, cubed-sphere, configuration
304      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
305      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
306      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
307        of surface winds for the cube
308      (A verification experiment, based on global_ocean.cs32x15, but with
309       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
310       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
311       complete with example surface forcing files and matlab scripts to look
312       at the output and compare it with that of global_ocean.cs32x15.)
313    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
314       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
315       to conform to the common rule.
316    o check-in the first version of the coupler + interfaces for multi-components
317       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
318       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
319       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
320       - ocean and atmos. share the same horizontal grid (no interpolation).
321       - exchanges between component and coupler is done in forward_step
322    o new verification experiment, cpl_aim+ocn:
323       coupled ocean - AIM atmosphere on cs32 grid.
324    
325    checkpoint52d_pre
326    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
327    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
328    
329    checkpoint52c_post
330    o Fixing OPTIONS files for use of exf:
331      - ALLOW_ECCO not needed
332      - ECCO_CPPOPTIONS.h should not be included from
333        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
334        as has been the case in the past
335      - All cal/exf related options are currently set in
336        single header file. Should remain so until we
337        agree on a consistent new policy.
338    o Removed all CPP options for cal package.
339      cal has no more CPP options.
340    o modified STOREs in GAD_ADVECTION
341    o corrected key comp. for passkey
342    
343    checkpoint52b_post
344    o new version: "thsice" of thermodynamic sea-ice pkg:
345     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
346     - modify fluxes but do not change theta directly;
347     - light cleaning of bulk_force pkg (still needed with thsice).
348     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
349       + output_thsice.txt to test thsice & bulk_force pkgs.
350    o put back grid & coriolis monitor output.
351    checkpoint52b_pre
352    
353    o call "do_the_model_io" at the beginning (=> dump initial state)
354    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
355    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
356      (need info on NUMBER_OF_PTRACERS)
357    o missing PTRACERS headers in some routines
358    o default tamc.h in pkg/autodiff supposed to crash
359      to ensure proper customization
360    
361    checkpoint52a_post
362    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
363      - moved surfaceTendencyTice from pkg/seaice to main code
364      - subroutine FREEZE_SURFACE now limits only surface temperature
365        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
366        => new output.txt for global_ocean.cs32x15 & global_with_exf
367      - keep the old version of FREEZE for backward compatibility;
368        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
369      - corresponding modifs for TAF directives
370    o added surface flux output variables to TIMEAVE_STATVARS
371    o time-averaged output for pkg/ptracers
372    o fix problem with ECCO-related divided adjoint
373      snapshot file was missing some ad-variables,
374      but no warning issued by TAF
375    
376    checkpoint52a_pre
377    o some bug fixes for #undef REAL4_IS_SLOW
378    
379    checkpoint52 = ecco_c52_e35
380    o after testing adjoints of checkpoint51u_post
381    
382    checkpoint51u_post
383    o this is the post-merge tag of the ecco-branch
384      (needs another clean checkout and re-testing)
385    o various natl_box_adjoint configs and results
386      but no input fields
387    o obcs adjoint not yet merged!
388    o adding ECCO global 1x1 and 2x2 degree configs
389    o updated/extended some store directives for seaice
390    o pkg/ecco now containes ecco-specific part of cost function
391    o top level routines the_main_loop, forward_step
392      supersede those in model/src/
393      previous input data.cost now in data.ecco
394      (new namelist ecco_cost_nml)
395    o in ctrl/ cleaned some cross-dependencies and updated CPP options
396    
397    checkpoint51t_post
398    o this is the pre-merge tag of the ecco-branch
399    
400    checkpoint51s_post
401    o cleanup: removed various obsolete #define-s
402    o pkg/grdchk
403      - renamed 'ph-grd 3' to 'grad-res'
404      - merged from ecco-branch
405        (remaining bug fixes for obcs gradient checks)
406      - additional high-precision output for testreport
407        (grep for 'precision_grdchk_result')
408    
409    checkpoint51r_post
410    o cleaned up or removed CPP_OPTIONS.h files
411    o updated results for some of the tests to reflect the new
412      optfiles (-ieee: -O0 instead of -O3)
413    
414    checkpoint51q_post
415    o cd_code:
416      - moved cd_scheme.F -> cd_code_scheme.F
417      - separate read_checkpoint from cd_code_ini_vars.F
418      - separated cd_code part from write_checkpoint
419      - updated AD_SOURCE, generated .flow
420      - added CD_CODE_VARS.h to the_main_loop
421      - Moving cd_code specific store dir.s to pkg/cd_code
422    o ctrl package totally restructured
423      - pack/unpack now optional and decoupled from
424        xx_/adxx_ I/O
425      - ctrl_pack/unpack cleaned
426        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
427      - confined inclusion of AD_CONFIG.h to where necessary.
428    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
429    
430    checkpoint51p_post
431    o create initial cd_code package
432      - WARNING: the initialization of fields within packages
433        is broken because INI_FIELDS (where READ_CHECKPOINT is
434        called) is called *before* PACKAGES_INIT_VARIABLES.
435        This seems to be backwards since
436        1) its important to initially zero the entire field including
437           the "halo" region
438        2) zeroing needs to be done *before* reading pickup info
439           and the pickup call might or might not happen in any
440           particular run
441      - this needs an overhaul for R2
442    o cleanup verification/*/code/GMREDI_OPTIONS.h
443    o cleanup testreport
444    
445    checkpoint51o_post
446    o bringing AD-related verif's up to date with genmake2
447      - carbon/
448      - global_ocean.90x40x15/
449      - hs.94.1x64x5/
450      - (front_relax/ )
451    o (more) consistent directory structure for AD-related verif.'s
452    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
453    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
454    o bug fix in find_alpha.F for MDJWF:
455      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
456        change rho -> rho-rhoConst
457      - replace call find_rho to find_rhonum
458    o initialisation of rFlx extended to full array (required by TAF)
459      and shifted to thermodynamics
460    o removed PTRACERS.h in ptracers routine
461    o added surfacetendencyPtr to S/R parameter list pracers_forcing
462    o Correcting initialisations for fVerU, fVerV.
463    o helping TAF to recognize dependency on kUp for
464      fVerU, fVerV
465    o Replacing delZ by delR in pkg/ctrl/
466    checkpoint51o_pre
467    
468    o undid all of cp51 pending some cleanups and discussion
469    o added the [#include "AD_CONFIG.h"] statement to all files that need
470       it for adjoint/tl #defines
471     o re-worked the build logic in genmake2 to support AD_CONFIG.h
472     o removed tools/genmake since it no longer works
473    
474    checkpoint51n_post
475    o modifications to make FREEZE flux visible to pkg/kpp
476      - moved surfaceTendencyTice from pkg/seaice to main code
477      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
478      - subroutine FREEZE now limits only surface temperature
479        (this means new output.txt for global_ocean.90x40x15,
480         global_ocean.cs32x15, and global_with_exf)
481    o added surface flux output variables to TIMEAVE_STATVARS
482    
483    checkpoint51n_pre
484    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
485    o added [#include "AD_CONFIG.h"] to all files that use the following
486      defines:
487      - ALLOW_ADJOINT_RUN
488      - ALLOW_TANGENTLINEAR_RUN
489      - ALLOW_ECCO_OPTIMIZATION
490    
491    checkpoint51m_post
492    o incorporating changes to get TAMC/TAF working in genmake2
493      - added new TAMC/TAF targets to the Makefile
494      - various cleanups related to package handling
495      - these changes should have no impact on the forward model
496    
497    checkpoint51l_post
498    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
499     - faster algorithm for cal_addtime.F
500     - higher precision arithmetic, where needed
501     - pkg/exf *startdate variables changed from calendar date to
502       model integration time
503    
504    checkpoint51l_pre
505    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
506    o enable to apply restoring on S & T only in a latitude band.
507    o update output (external_forcing_surf modif. change truncation errors)
508       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
509    
510    checkpoint51k_post
511    o change default to: useNHMTerms=.FALSE.
512     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
513       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
514     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
515        exp1, ideal_2D_oce
516     - change data file of oceanic exp (leave the results unchanged for now)
517       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
518    o set gravitySign automatically according to the vertical coordinate used
519      (and change sign: back to "logical" value: +1 when R increases downward)
520    o added an include barrier to the default CPP_OPTIONS.h and
521      removed the #include "PACKAGES_CONFIG.h" from it
522    o fix a bug in mom_fluxform (from chk51j_post)
523    
524    checkpoint51j_post
525    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
526    o adjusted some flow directives (dynamics, thermodynamics)
527    o added cubed-sphere case to test cost function
528    o heckpoint_lev?_directives.h now include
529      pkg-specific directives, whenever those are enabled.
530    o Moving pkg-specific flow directives to corresponding pkg
531      Moving pkg-specific differentiation list to corresponding pkg
532      Moving pkg-specific checkpoint-lev storing to corresponding pkg
533      ---> conventions are
534           - pkg_ad.flow
535           - pkg_ad_diff.list
536           - pkg_ad_check_lev?_dir.h
537    
538    checkpoint51i_post
539    o merge of the branch-genmake2
540      - knowingly breaks the older genmake
541      - automatic generation of all ALLOW_${PKG_NAME} defines
542      - new testreport supersedes older testscript
543    o large number of package inclusion and header cleanups
544    checkpoint51i_pre
545    
546    o new output for adjoin of global ocean vector invariant
547    o fix for checkpoint of thermodynamic seaice and bulk_force
548    o Steph gchem various cleanups
549    
550    checkpoint 51h_pre
551    o fixed some single quotes
552    o modify gchem pkg to be more versatile
553    o modifications to clean up dic pkg
554    o add pkg/cfc
555    
556    checkpoint51g_post
557    o provide links for ARPACK and ADM*TLM
558    o start removing verification/vero/
559    o update AD-related stuff
560      (in particular some IF-statements in model/src/ routines)
561    o adding to verification/global_ocean.90x40x15/ adjoint of
562      vector invariant setup
563    
564    checkpoint51f_post
565    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
566    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
567      of tracer Green's fucntions for ocean inversion project.
568    
569    checkpoint51f_pre
570    o Added on-the-fly spatial interpolation capability
571        "USE_EXF_INTERPOLATION" to pkg/exf.
572      - This is a temporary Cartesian-grid hack until
573        the super-duper ESMF coupler becomes available.
574      - See verification/global_with_exf/README for usage example.
575      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
576        flags and modified pkg/seaice accordingly.
577    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
578        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
579        non-local transport term.
580    
581    checkpoint51e_post
582    o pkg/mom_vecinv:
583      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
584      - add time-ave diagnostic of vorticity advection.
585    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
586    o atmospheric geopotential: - include water vapor effect;
587                                - use p^kappa in p* scaling.
588    o land pkg: read initial state from files.
589    o AIM : add stratospheric drag in the upper level
590    
591    checkpoint51d_post
592    o change function ILNBLNK (=> last non-blank char.) to return zero
593      (instead of the string length) when the string. char is empty
594    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
595    o modif's to restore TAMC compatibility
596      - avoid "_d" constructs in PARAMETER declarations
597      - avoid interrupting lines by comment lines
598    o Use cluster local disks for purely local I/O
599      vs. globally visible disks needed for ctrl stuff
600      (merged from ecco-branch)
601      - new active_file_loc... and mdsio_..._loc routines
602      - affected packages: autodiff, ctrl, grdchk, mdsio
603    
604    checkpoint51c_post
605    o introducing integer flag debugLevel
606      - debLevZero: suppress all output
607      - debLevA: standard
608      - debLevB: equivalent to current debugMode=.TRUE.
609    o introducing pathname variable mdsioLocalDir for mdsio
610      that can be specified at runtime
611      (relevant for cluster I/O to local disk)
612    `
613    >>>checkpoint51b_post
614    adjoint of ptracers
615    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
616    o extended state in checkpoint_lev?, etc.
617    o alternative ctrl/cost with tr1 or ptracer
618    o new comlev1_bibj_ptracers
619    o new ptracers.flow
620    o made ptracers_forcing same as external_forcing_s
621    o added verification for adjoint with ptracers
622      - adm. grdchk fail so far
623      - tlm. grdchk OK
624      - checked tapelev/comlev recomputations: OK
625    <<<checkpoint51b_pre
626    
627    checkpoint51a_post
628    o added code for biogeochemistry package
629      - new pkgs: dic, gchem
630      - new subroutine in ptracers
631    o modify code for biogeo packages
632      - in model/src and pkg/ptracers
633    
634    checkpoint51
635    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
636      - autodiff, ctrl, exf, grdchk, seaice
637      kept separate packages
638      - cost, ecco, obcs
639    o updating verification/internal_wave, verification/lab_sea
640      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
641    
642    checkpoint50i_post
643    o Preparing next differentiable checkpoint and sync
644      of MAIN vs. ecco-branch
645      - 1st step: this one is differentiable
646      - 2nd step: next(! not this) checkpoint will have updated packages
647                  from ecco-branch)
648    
649    checkpoint50h_post
650    o new package "land": provide surface BC for AIM.
651    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
652    o AIM: use true log-P extrapolation for near surface temp (= as in
653        F.Molteni paper) ; update aim.5l_cs output.
654    o New variable in PARM03 for more flexible pickups
655    o somewhat cleaned package initialisation sequence for
656      ctrl/ cost/ ecco/ in packages_... routines
657    
658    checkpoint50g_post
659    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
660      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
661      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
662        made the default because of faster convergence than ADI
663    
664    checkpoint50f_post
665    o exf totally restructured
666      - replaced all exf_set_ routines by one generic exf_set_gen.F
667        and made sure it's still differentiable
668      - split exf_getffields.F into new exf_bulkformulae.F
669      - exf_inscal_/exf_outscal_ suffixes consistent with field names
670      - updated adjoint/makefile and relevant verif. accordingly
671    
672    checkpoint50f_pre
673     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
674          + change Evap over land. (update aim.5l_cs output)
675     o added missing .cvsignores and made uniform across expts
676     o changed configuration of tidal_basin_2d expt
677     o added pkg/debug functions for tracing code in fatal crashes
678     o tidied pkg/monitor to use MONITOR_OPTIONS.h
679     o new fn in pkg/monitor to stop model if solution grows too big
680     o removed lots of single quotes from comments
681    
682    checkpoint50e_post
683    o make KPP work with PTRACERS
684     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
685       nearly a copy of kpp_transport_s
686     - there is no analogue to SurfaceTendencyS, so I have to use
687       gPtr(of the surface layer) instead
688    o add a new platform SunFire+mpi (SunFire 15000) to genmake
689    checkpoint50e_pre
690    
691    checkpoint50d_post
692    o change kpp output from multiple-record state files to single-record state
693      files analogous to write_state.F
694    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
695      analogous to the cg2d-related output.
696    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
697      so that writing to internal file fn (with length 512) fails.
698    checkpoint50d_pre
699    
700    checkpoint50c_post
701    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
702    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
703    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
704    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
705    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
706    
707    checkpoint50c_pre
708    Merging from release1_p13:
709    o bug fix for pkg/seaice dynamic solver
710    o Added SEAICE_initialHEFF to pkg/seaice
711    
712    checkpoint50b_post
713    o store u*,v* in gU,V instead of in guNm1,gvNm1
714    o in order to put the momForcing out of the Adams-Bashforth:
715      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
716      to timestep.F
717    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
718    o re-generate output for highly sensitive test-exp:
719       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
720    
721    checkpoint50b_pre
722    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
723    o corrected CPP option mismatch in exf_Bulk... functions for case
724      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
725    
726    checkpoint50a_post
727    o Bug fix for merging between c50 and KPP.
728      ikey was passed from thermodynamics to kpp_calc via
729      common block rather than being recomputed in kpp_calc,
730      in contradiction with new key itdkey.
731      New key ikppkey created, and tamc.h headers updated.
732    
733    checkpoint50
734    - 2nd step of merge with ecco-branch:
735      merge changes in ecco-branch back into main trunk
736    - bug fix in find_alpha
737    - more storing in gmredi_calc_tensor.F, kpp_routines.F
738    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
739    - merged some sliced AD support routines
740    
741    checkpoint49
742    merged from ecco-branch:
743    o exf:
744      - Enable initialisation of forcing fields to constant
745        (runtime) values.
746      - in exf_getffields.F
747        Reduce i-/j-loop to interior domain, discarding overlaps.
748        That also fixes wrong TAF-key computations for key_1, key_2
749        with bulf formulae.
750      - exf_init.F modify #ifdef for exf_init_evap
751      - exf_getffieldrec.F, ctrl_getrec.F
752        The following INT-usages are not safe:
753          fldsecs  = int(fldsecs/fldperiod)*fldperiod
754          fldcount = int(fldsecs/fldperiod) + 1
755        and were modified.
756    o autodiff: checkpoint_lev...
757      - updated storing for bulk formulae (some arrays were missing)
758      - added state for seaice package
759      - synchronized with main branch
760    o DIVA:
761      Modif.s in
762      - the_main_loop.F
763      - the_model_main.F
764      and added cost_final_restore.F cost_final_store.F
765      o With these changes, it is possible to fully separate
766        the first forward run to compute the cost function (mdthe_main_loop)
767        and adjoint runs over individual DIVA intervals (adthe_main_loop)
768        into separate model executions.
769        This enables better tuning of DIVA to given queue sizes.
770      o Loss of cost function value in consecutive DIVA runs is
771        fixed by storing to 'costfinal' file.
772      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
773        beginning/end of adjoint integration is accounted for.
774      The current changes apply to TAF-1.4.26.
775      TAF has one remaining bug, requiring one manual change
776      (see MITgcm manual).
777    o cal: synchronized between MAIN and ecco-branch
778    
779    checkpoint48i_post
780    o Changes to restore differentiability of code w.r.t. previous tag
781      (mostly adding new routines to make list and replacing
782      pressure by totPhiHyd).
783    o Updated and merged grdchk package
784      - has both ADM and TLM checks
785      - works for single- and multi-proc.
786      - output cleaned
787      - worked successfully for parallel DIVA
788    o genmake:
789      - Adding -platform=SP4
790      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
791    o Modif. for DIVA:
792      ctrl_unpack should not be called in intermediate DIVA interval.
793      (similar thing would apply for active files such as
794      tbar, sbar, psbar, which should not be reinitialised;
795      only relevant for ecco-branch)
796    
797    checkpoint48h_post
798    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
799    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
800    o Added SEAICE_initialHEFF to pkg/seaice
801    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
802    
803    checkpoint48g_post
804    --- EOS:
805    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
806      store total Potential in totPhyHyd for diagnostics & EOS.
807    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
808    --- Pressure/geopotential gradient:
809    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
810    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
811      ( changes results of global_ocean_pressure )
812    o NLFS + z-coord.: add eta*Rho' contribution.
813    o accurate phiHyd when using interface-W at the middle between 2 centers
814     ( changes results of ideal_2D_oce )
815    o includes r* 2nd term in potential gradient.
816    
817    checkpoint48f_post
818    Merging from release1_p12:
819    o Modifications for using pkg/exf with pkg/seaice
820      - improved description of the various forcing configurations
821      - added basic radiation bulk formulae to pkg/exf
822      - units/sign fix for evap computation in exf_getffields.F
823      - updated verification/global_with_exf/results/output.txt
824    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
825      (SBO) core products, including oceanic mass, center-of-mass,
826      angular, and bottom pressure (see pkg/sbo/README.sbo).
827    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
828      to avoid negative values in shallow regions.
829      - updated verification/natl_box/results/output.txt
830      - updated verification/lab_sea/results/output.txt
831    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
832    o Added useSingleCpuIO option (see PARAMS.h).
833    o Updated useSingleCpuIO option in mdsio_writefield.F to
834      work with multi-field files, e.g., for single-file pickup.
835    o pkg/seaice:
836      - bug fix in growth.F: QNET for no shortwave case
837      - added HeffFile for specifying initial sea-ice thickness
838      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
839    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
840      kpp_transport_t.F, forward_step.F, and the_main_loop.F
841    o pkg/seaice:
842      - adjoint-friendly modifications
843      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
844    
845    checkpoint48e_post
846    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
847    o dynamics: change definition of computational domain & adapt mom_fluxform
848      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
849    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
850        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
851        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
852        global_ocean.90x40x15 global_with_exf global_ocean_pressure
853        inverted_barometer solid-body.cs-32x32x1
854      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
855    
856    checkpoint48d_post
857    o in preparation for r*:
858     a) use pre-computed gradient of hydrostatic potential:
859        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
860     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
861        => affects results of glob_oce_pressure (different truncation error)  
862      update output.txt of ideal_2D_oce & global_ocean_pressure
863    
864    checkpoint48d_pre
865    o in preparation for r*:
866      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
867      pass the 2 comp. of the grad. as arguments to momentum S/R.
868      but for the moment, only used if it does not change the results.
869    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
870    
871    checkpoint48c_post
872    Modifications in treatment of initial flux forcing controls
873    to avoid extra storing of flux fields.
874    
875    checkpoint48c_pre
876    o Added tidal_basin_2d experiment (currently 1D!)
877    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
878    
879    checkpoint48b_post
880    o r* coordinate added in #ifdef NONLIN_FRSURF block.
881     (modification to pressure gradient not yet implemented)
882    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
883      (for U & V) that are used for vertical advection of momentum.
884    
885    checkpoint48a_post
886    o In preparation for r*, use temp. array to compute vertical transport
887       in flux-form momentum pkg. => change results of few test-exp.
888      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
889                        lab_sea, natl_box & plume_on_slope
890    
891    checkpoint48
892    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
893    
894    checkpoint47j_post
895    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
896    o moved adexch from forward_step to addummy_in_stepping
897    o added exch in ctrl_map_...
898    o aveFreq.=0. at end of cost_final to avoid overwrite in
899      reverse checkpointing loop
900    o Yet more changes in gmredi:
901      * adgmredi_calc_tensor
902        avoiding all recomputation of gmredi_slope_limit
903      * adgmredi_x/y/rtransport
904        added flag for excessive storing to avoid recomp. of
905        u/v/rtans, dTdx/y/z
906        -> this is not really necessary and very memory-consuming
907      * adgmredi_slope_psi:
908        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
909      * gmredi_slope_limit
910        re-activated full calculation of taperfct for case 'ac02'
911    o updating verification/ adjoints of carbon, global_ocean.90x40x15
912    
913    checkpoint47i_post
914    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
915    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
916      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
917    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
918    o gmredi: fix few bugs.
919    
920    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
921    This will be a good checkpoint to plug into the ecco-branch.
922    o few modif.'s to get latest version adjointed
923      (mainly kick out code in ini_linear_phisurf)
924    o modif's to run adjoint with exactConserv
925    o case GM_BOLUS_ADVEC should be cleaned
926      S/R gmredi_slope_psi should be cleaned
927    o verification/carbon now has exactConserv=.TRUE.
928    
929    checkpoint47g_post
930    o time-average AIM output: becomes independent from statvars time-average
931      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
932    o After TAF bug fix:
933      Tested adjoint of gmredi package.
934      Tests were done with checkpoint47 rather than with latest
935      checkpoint47f_post since the latter is broken for the adjoint
936      verification/carbon/ contains both ADM and TLM gradient checks.
937    Here they are, before they get changed/lost/stolen.
938    Mostly modif.'s to fix numerical sensitivities.
939    Gradient checks OK for
940    - GM_taper_scheme:
941      * clipping
942      * ac02
943      * linear
944      * glw91
945      * dm95
946      * ldd97
947    - GMREDI_OPTIONS:
948      * GM_VISBECK_VARIABLE_K
949      * GM_NON_UNITY_DIAGONAL
950      * GM_EXTRA_DIAGONAL
951      * GM_BOLUS_ADVEC
952    in conjunction with data.gmredi parameters to be checked in
953    in a few minutes under verification/carbon/code/
954    
955    checkpoint47f_post
956    Merging from release1_p10:
957    o modifications for using pkg/exf with pkg/seaice
958      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
959        and SEAICE_EXTERNAL_FLUXES
960      - pkg/exf CPP options EXF_READ_EVAP and
961        EXF_NO_BULK_COMPUTATIONS
962      - usage examples are Experiments 8 and 9 in
963        verification/lab_sea/README
964      - verification/lab_sea default experiment now uses
965        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
966    
967    checkpoint47e_post
968    o created a tag prior to creating a branch
969    
970    checkpoint47d_post
971    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
972      at the bottom boundary had an erroneous half slip boundary condition
973    o added bottom drag and no slip boundary condition capabilities to
974      oceanic pressure coordinates code
975    o added new verification experiment global_ocean_pressure, this experiment is
976      also described in the tutorial section of the manual
977    checkpoint47d_pre
978    
979    checkpoint47c_post
980    o Added a verification experiment for a global cubed-sphere ocean run
981      -  verification/global_ocean.cubed32x32x30
982      -  uses pkg/therm_seaice and pkg/bulk_forcing
983    
984    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
985    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
986      when using P-coordinate; only implemented for atmospheric config.
987    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
988      NOTES: requires option NONLIN_FRSURF to be "#define".
989    o update advect_xz/results/output.txt (left from checkpoint44g_post)
990    
991    checkpoint47b_post
992    Merging from release1_p9:
993    o pkg/seaice
994      - removed GOTO's and added taf directives
995      - double precision constants to reduce the g77 (Linux)
996        to F77 (SGI) differences reported in release1_p8
997    o tools/genmake
998      - added SGI options
999    o verification/testscript
1000      - updated to that of checkpoint47a_post
1001    o verification/global_ocean.90x40x15/input/eedata
1002      - modified for SGI f77 compatibility
1003    o verification/lab_sea
1004      - added description of sea-ice model
1005      - added missing matlab routines
1006      - added test of thermodynamics parallelization
1007    
1008    checkpoint47a_post
1009    o new pkg: aim_v23
1010     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1011       for now, keep the same surface forcing as before.
1012     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1013     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1014     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1015    o add diagnostic of surface correction term in monitor output
1016    
1017    o bulk_force and therm_seaice
1018    - Two packages:  bulk_force (Bulk forcing)
1019      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1020    - Earlier integration from Stephaine Dutkiewicz
1021      and Patrick Heimbach.
1022    - Two ifdef statements for compile time,
1023       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1024    
1025    checkpoint47
1026    differentiable version of checkpoint46n_post
1027    o bug fix in quasihydrostaticterms
1028    o * "clean" adjoint code (in terms of extensive recomputations)
1029        can now be obtained for all GMREDI options (i.e. for
1030        - GM_VISBECK_VARIABLE_K
1031        - GM_NON_UNITY_DIAGONAL
1032        - GM_EXTRA_DIAGONAL
1033        - GM_BOLUS_ADVEC )
1034      * However, wrong gradient check problem remains unsolved.
1035      * New CPP options have been introduced for different
1036        tapering schemes
1037    o external_fields_load now part of differentiation list
1038    o pressure needs multiple storing;
1039      would be nice to have store_pressure at beginning or
1040      end of forward_step, e.g. by having phiHyd global (5-dim.)
1041      (NB: pressure is needed for certain cases in find_rho,
1042      which is also invoked through convective_adjustment).
1043    o recomputations in find_rho for cases
1044     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1045    o #define ATMOSPHERIC_LOADING should be differentiable
1046    o ini_forcing shifted to begining of initialise_varia
1047    o Incorporating QNVS line search routines into MITgcm
1048      (this is separate code, and therefore not under pkg)
1049      lsopt/, optim/
1050    o Updated verification/carbon/
1051      - #define GM_VISBECK_VARIABLE_K
1052      - GM_taper_scheme    = 'ldd97'    
1053    
1054    checkpoint46n_post
1055    Merging from release1_p8:
1056    o verification/natl_box:
1057      updating new external_fields_load routine
1058    o New package: pkg/seaice
1059      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1060      The sea-ice code is based on Hibler (1979-1980).
1061      Two sea-ice dynamic solvers, ADI and LSR, are included.
1062      In addition to computing prognostic sea-ice variables and diagnosing
1063      the forcing/external data fields that drive the ocean model,
1064      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1065      The implied surface heat flux is then stored in variable
1066      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1067      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1068      non-local transport term.  Because this call precedes model
1069      thermodynamics, temperature under sea-ice may not be "exactly" at
1070      the freezing point by the time theta is dumped or time-averaged.
1071      N.B.: fairly large differences in accuracy occur across
1072            different platforms/compilers; comparison between
1073            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1074            generated output gives:
1075       T           S           U           V
1076      C D M    c        m  s        m  s        m  s        m  s
1077      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1078      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1079      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1080    
1081      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1082    o GAD:
1083      - generated new common blocks to account for call of
1084        same gad routines with differing traceridentities
1085        (needed to modify tracerIdentity indices in GAD.h)
1086      - generated separate common blocks for case useCubedSphereExchange
1087        (Department of Futurology)
1088      - parameter lists to gmredi_?transport: added tracerIdentity
1089      - added new key indices to tamc.h
1090    o external_fields_load:
1091      - added this routine to TAF list
1092      - needed to make some common blocks global and additional storing
1093        along the same lines as exf package (checkpoint_lev?_directives.h)
1094    o exf:
1095      updated external forcing package
1096      - bug fixes carried over from ecco-branch
1097        (missing OBCS_OPTIONS.h in two routines)
1098      - enable easy to use "no forcing".
1099      - added exf I/O for atmospheric loading
1100      - added exf I/O for runoff data
1101      - transfered scaling between exf <-> MITgcm to exf namelist
1102    o Adding new verification experiment global_with_exf.
1103      This verification experiment is almost identical to the
1104      global_ocean.90x40x15 experiment, except that it uses
1105      the exf (and cal) package instead of the
1106      external_fields_load routine (cf README file).
1107    
1108    checkpoint46m_post
1109    o modified testscript to return -- when there are no lines of "%MON" output
1110    o added new flag "quasiHydrostatic" for QH mode
1111      and new routine quasihydrostaticterms()
1112    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1113      New routine: mom_u_coriolis_nh()
1114    o fixed sign of non-hydrostatic metric terms in u and v equations.
1115      Depend on correct sign of gravitySign.
1116    o added work.pc* to .cvsignore in aim directories using ifc
1117    o introduced flag for controllin non-hydrostatic metric terms
1118    o removed gravitySign from PARM04
1119    o switched to g77/ifc from pgf77 in aim experiments
1120    
1121    checkpoint46l_post
1122    o made convective adjustment work with pressure coordinates:
1123     - changed the direction of k-loop in convective_adjustment.F for the
1124       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1125     - adjusted the reference pressure k-index in convective_adjustment.F
1126     - adjusted the convection condition in convect.F (in analogy to
1127       calc_ivdc.F)
1128     - convective_adjustment no longer computes anything on the halos
1129     - removed the warnings about negative salinity from find_rho.F and
1130       find_alpha.F; instead the new routine look_for_neg_salinity, called
1131       at the beginning of find_rho, find_alpha, and find_beta, does a
1132       check of the entire slice, if CPP-option
1133       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1134    checkpoint46l_pre
1135    
1136    checkpoint46k_post
1137    o fixed the verification/global_ocean.90x40x15 experiment:
1138     - new bathymetry (the world according to A., JMC, and M.)
1139     - new initial fields and forcing fields (*.bin files)
1140     - new POLY3.COEFFS (for the next release one should switch to a full
1141       equation of state: JMD95P or MDJWF)
1142     - fixed several errors and redundancies in the data file
1143     - experiment uses looped cells
1144     - added matlab directory with diagnostic scripts for plotting of output
1145    
1146    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1147     - read AIM physics parameters from a file (data.aimphys)
1148     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1149    
1150    checkpoint46j_post
1151    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1152    o move wVel computation at the end of the time step, in S/R integr_continuity
1153    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1154    o update timeave pkg for wVel diagnostic.
1155    checkpoint46j_pre
1156    
1157    checkpoint46i_post
1158    o Clean up AIM package (and keep the results unchanged):
1159      include CPP_OPTION and use IMPLICT NONE in all routines ;
1160      declare all the variables _RL ; use _d 0 for all numerical constants.
1161      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1162    
1163    checkpoint46h_post
1164    o cleaned up the use of rhoNil and rhoConst.
1165      - rhoNil should only appear in the LINEAR equation of state, everywhere
1166        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1167        and the dynamical equations are all divided by rhoConst
1168    o introduced new parameter rhoConstFresh, a reference density of fresh
1169      water, to remove the fresh water flux's dependence on rhoNil. The default
1170      value is 999.8 kg/m^3
1171    o cleanup up external_forcing.F and external_forcing_surf.F
1172      - can now be used by both OCEANIC and OCEANICP
1173    checkpoint46h_pre
1174    
1175     Added code to convert surface volume flux (fresh water) into
1176     a mass flux when using P coordinates in the ocean (OCEANICP).
1177     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1178    
1179    checkpoint46g_post
1180    o Include a new diagnostic variable phiHydLow for the ocean model
1181      - in z-coordinates, it is the bottom pressure anomaly
1182      - in p-coordinates, it is the sea surface elevation
1183      - in both cases, these variable have global drift, reflecting the mass
1184        drift in z-coordinates and the volume drift in p-coordinates
1185      - included time averaging for phiHydLow, be aware of the drift!
1186    o depth-dependent computation of Bo_surf for pressure coordinates
1187      in the ocean (buoyancyRelation='OCEANICP')
1188      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1189        Theta, Salinity, and Pressure in the parameter list. This routine is
1190        presently contained in find_rho.F. This routine does not give the
1191        correct density for 'POLY3', which would be a z-dependent reference
1192        density.
1193    o cleaned up find_rho
1194      - removed obsolete 'eqn' from the parameter list.
1195    o added two new verification experiments: gop and goz
1196      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1197    checkpoint46g_pre
1198    
1199    checkpoint46f_post
1200    o Enable tangent linear (forward mode) gradient checks:
1201      - extended active file handling to g_... files
1202      - added TANGENT_SIMULATION to theSimulationMode
1203      - extended grdchk package accordingly
1204    o added tangent linear setup in verification/carbon/code_ftl
1205    o added adjoint setup in verification/front_relax/code_ad
1206    
1207    checkpoint46e_post
1208    o Added new equation of state -> MDJWF
1209      - EOS of McDougall et al., 2002, JAOT, submitted
1210      - caveat: the equation of state is only valid for a smaller (more
1211        realistic?) range of values than JMD95P/Z and UNESCO
1212      - added masks to the calculation of pressure in store_pressure
1213      - added more check values for density in check_eos (ini_eos.F), some of
1214        the old check values are out of the range of the MDJWF-eos, so don't
1215        expect perfect matches for those
1216    checkpoint46e_pre
1217    
1218    checkpoint46d_post
1219    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1220      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1221      case of pressure coordinates. eosType='JMD95Z' in
1222      combination with buoyancyRelation='OCEANICP' now causes an error.
1223    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1224      in find_alpha/beta.
1225    checkpoint46d_pre
1226    
1227    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1228      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1229    
1230    checkpoint46c_post
1231    o Changes necessary for ocean in p-coordinates
1232     -  Added new buoyancy relation = 'OCEANICP'
1233     -  Added new parameters = gravitySign (this used to be contained inside
1234        the factor dRdZ which I added when we first switched to R coordinates).
1235     X GM/Redi is not compatible (yet)
1236     X bottom drag and no-slip need to be debugged.
1237    checkpoint46c_pre
1238    
1239    checkpoint46b_post
1240    o Added new equation of state -> JMD95Z and JMD95P
1241      - EOS of Jackett and McDougall, 1995, JAOT
1242      - moved all EOS parameters into EOS.h
1243      - new routines ini_eos.F, store_pressure.F
1244    o Added UNESCO EOS, but not recommended because it requires
1245      in-situ temperature (see JMD95)
1246    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1247      unesco.f to be used with POLY3
1248    checkpoint46b_pre
1249    
1250    checkpoint46a_post
1251    o Added (atmospheric) pressure loading
1252      - new field in FFIELDS.h, etc...
1253      - new cpp flag ATMOSPHERIC_LOADING
1254    o Changed hFacC to _hFacC in calc_phi_hyd.F
1255    o Added SHORTWAVE_HEATING to some files for consistency
1256    checkpoint46a_pre
1257    
1258    checkpoint46
1259    further merges from release1_p5
1260    o new ctrl package
1261      - adopted from ECCO environment to enable optimization
1262      - added Eliassen Palm fluxes to controls
1263    o added Eliassen Palm flux controls to gradient check package
1264    o cost package
1265      - Compatible with new ctrl package
1266      - added Eliassen Palm cost hooks
1267      - modif's of existing cost functions
1268    o Adjoint-related bug fixes in kpp:
1269      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1270      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1271    o autodiff package
1272      - flow directives:
1273        + new for S/R do_the_model_io
1274        + enhanced for S/R checkpoint
1275        + new gmredi.flow
1276      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1277        disable adcommon.h/g_common.h by default.
1278      - fixed problem for adjoint of global_max
1279    o modified verification/carbon/
1280    o New setup for adjoint of global_ocean
1281    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1282    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1283    o incorporated hooks for sponge layer code (external_forcing.F)
1284    
1285    checkpoint45d_post
1286    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1287    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1288      (affects plume_on_slope "cg2d" output)
1289    o add new parameter deltaTfreesurf for free-surface time stepping
1290    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1291    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1292    o change phiMin in exp1 (to agree with documentation)
1293    o add new flags:
1294     - T,S forcing inside/outside Adams-Bashforth
1295     - turn off temp,salt advection and/or forcing
1296     - for each tracer, define internal flag for multiDimAdvection & A-B
1297    o monitor: change definition of KE to check conservation of Energy
1298    
1299    checkpoint45c_post
1300    o Removed f90 comments ("!")
1301    o Modified initialisations to enable exf package for MITgcm
1302      (without invoking ECCO_PACKAGE).
1303    o modifications to gradient check package (Martin Losch)
1304      - enable centered differences
1305      - modified format of standard output
1306    
1307    checkpoint45b_post
1308    o cleaned exchange calls in cg2d
1309    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1310    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1311      to configure barotropic setup (Martin Losch)
1312    o moved some initialisations within bi,bj loop in dynamics
1313      (TAF flow dependency)
1314    o in initialise_varia, moved call packages_init_variables
1315      before convective_adjustment_init
1316      (corresponding adjustment of TAF tape initialisation).
1317    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1318    
1319    checkpoint45a_post
1320    o compute Rho over the whole domain (extend iMin,jMin indices)
1321    o specific exchange for X-slice domain (case Ny=1)
1322    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1323    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1324    
1325    checkpoint44h_post = checkpoint45
1326    o Fix to restore differentiability:
1327      place at which packages_init_variables is called in
1328      initialise_varia is crucial for reverse control flow.
1329    o modifications in GMRedi to enable stable adjoint
1330      (corresponding modif's in thermodynamics, dynamics)
1331    o added missing hook for sponge layer code in external_forcing
1332    o modified test cost functions
1333    o storing in gad_advection (plus removal of write(0,*)!
1334    o missing headers TR1.h added in convective_adjustment routines
1335    o errorMessageUnit set non-equal zero in eeboot
1336      (conflict on some platforms, e.g. IBM SP3)
1337    o modified carbon verif.
1338    
1339    checkpoint44h_pre
1340    o vertical grid option: allow to put the Interface at the middle between
1341      2 cell-centers ; replace delZ in pkg/kpp by drF.
1342    o GM Advective form: Tracers are advected using the residual transport (=
1343      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1344    
1345    checkpoint44g_post
1346    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1347      results) ; ifdef missing in thermodynamics.F
1348    
1349    checkpoint44f_pre,checkpoint44f_post
1350    o added PTRACERS package
1351      This allows an arbitrary number of passive tracers to be integrated
1352      forward simultaneously with the dynamicaly model.
1353      + Implemented so far:
1354        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1355        - I/O and checkpointing
1356        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1357      + Not implemented so far:
1358        - KPP
1359        - OBCS
1360      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1361        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1362        line in data.pkg.
1363      + This package is disabled by default since it increases storage.
1364    
1365    
1366    o testscript: added -cleanup option
1367    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1368                 b) enable to filter 2D fields.
1369    
1370    checkpoint44e_pre,post
1371    o re-wrote convective adjustment to use pre-calculated weights
1372      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1373      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1374      Original calls to convect() still in place.
1375    
1376    chkpt44d_pre,post
1377    o added missing EXCLUDE_MONITOR flags
1378    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1379      (incompatible typ in MIN/MAX expressions caused problems
1380      on IBM SP3)
1381    o in genmake added variable MAKEDEPEND
1382      plus resetting for case SunOS
1383    o added timer_stats.c routine for IBM SP3
1384    o removed variables in dynamics
1385    !!! I forgot to create tag chkpt44d_pre !!!
1386    !!! But chkpt44d_pre = chkpt44c_post    !!!
1387    
1388    o real fresh water flux implemented with non-linear free-surface.
1389    
1390    chkpt44c_pre,post
1391    o few fix (mask in shap_s2, EmPmR in external_field_load,
1392      USE_NATURAL_BCS in solve_for_P);
1393    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1394    
1395    checkpoint44b_pre/_post
1396    o merge of relevant stuff from the ecco-branch:
1397      - genmake: removed $S64 overwrite for case SunOS
1398      - pkg/exf: update and corrections for field swapping and obcs
1399      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1400                  harmonized between ECCO and MITgcm
1401      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1402                      updated checkpointing_lev... lists for obcs
1403      - model/src: minor changes in forward_step, plot_field
1404                   added directive for divided adjoint in the_main_loop
1405      - pkg/mdsio: added mdsio_gl_slice
1406    
1407  o check parameters & config (chkpt44a_pre,post)  o check parameters & config (chkpt44a_pre,post)
1408  o OBC and NonLin_FrSurf.  o OBC and NonLin_FrSurf.
1409    

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