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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.312 by jmc, Fri Jun 25 00:28:53 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o AIM pkg:
7      - include stability function into surf.Flux derivative relative to Tsurf
8      - calculate clear-sky radiation & surface temp. change (for diagnostics)
9    
10    checkpoint53e_post
11    o merged cylindrical coord configuration
12    o added rotating_tank experiment
13    checkpoint53e_pre
14    
15    checkpoint53d_post
16    o faulks upgraded: re-generate output.txt that have changed:
17       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
18    o Added Bryan and Lewis, 1979, vertical diffusivity profile
19    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
20    o added Sadourny discretization of Coriolis
21      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
22      - re-enabled use of omega3 (useAbsVorticity)
23    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
24      vector-invariant equations
25      - note: does *NOT* yet use same variable visc. for no-slip BC's.
26    o recoded the lateral boundary conditions for non-hydrostatic w, this time
27      hopefully without new bugs
28      - still to do: biharmonic friction for non-hydrostatic w
29    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
30    o regenerated output for global_ocean_ebm (using -ieee)
31    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
32      of mom_common/
33      - simple re-arrangement of instructions within computing loop
34    checkpoint53d_pre
35    
36    checkpoint53c_post
37    o new version of coupler for AIM+thSIce and Ocean models
38     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
39     - land: change Evaporation of snow
40     - aim with thSIce: fix bug in snow-precip.
41    o changes to calc_gw.F
42     - bug fix for w^2 term near the bottom boundary
43     - (hopefully) improve the lateral slip boundary condtions for use with
44        partial/looped cells
45      - because the bug fix changes two verification experiments anyway (exp5
46        and plume on slope), change the lateral boundary condition from half slip
47        to the value of no_slip_sides
48    o ebm package wasnt quite up to the parallel task. Fixed that.
49    o Adjoint of EBM package + verification
50      * TLM OK
51      * ADM not sufficient accuracy yet (needs further testing)
52    
53    checkpoint53b_post
54    o Commiting new energy balance model to repository
55      * package is pkg/ebm
56      * verif. is verification/global_ocean_ebm
57      * references are in ebm_driver.F
58    C      * X. Wang, P. Stone and J. Marotzke, 1999:
59    C        Global thermohaline circulation. Part I:
60    C        Sensitivity to atmospheric moisture transport.
61    C        J. Climate 12(1), 71-82
62    C      * X. Wang, P. Stone and J. Marotzke, 1999:
63    C        Global thermohaline circulation. Part II:
64    C        Sensitivity with interactive transport.
65    C        J. Climate 12(1), 83-91
66    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
67    C        Destabilization of the thermohaline circulation
68    C        by atmospheric eddy transports.
69    C        J. Climate 7(12), 1870-1882
70    o Will need long integration testing.
71    checkpoint53b_pre
72    
73    o created pkg/mom_common in preparation for variable viscosity code
74    o renamed and split ini_mnc_io
75    o pkg/land: only liquid water can diffuse or run-off
76    o AIM using land: soil wetness availability account for snow
77    o added printMapIncludesZeros to EEPARMS namelist
78    
79    checkpoint53a_post
80    o restore TAMC compatiility for exf_constants.h
81      (no usage of _d in .h)
82    o Additional storing in KPP in an attempt to fix
83      TAMC problem with adjoint of KPP code.
84      (no success...)
85      Identical code works fine with TAF.
86    o Fixed verification/natl_box_adjoint experiments.
87      Initial conditions for Experiments 4 and 5 are now
88      set to "SEAICE_initialHEFF=0", which is more reasonable,
89      and hence gives results closer to that of Experiment 2.
90      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
91    
92    checkpoint53
93    o stable checkpoint with up to date adjoint
94      TLM tests only run for 1st grdchk at the moment. Its unclear if
95      this is a code problem or a problem with resetting code for g_
96      variables that is being autogenerated wrong.
97      Otherwise:
98       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
99       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
100         are both still in chaos following their security messes.
101    
102    checkpoint52n_post
103    o various build (mostly genmake2) changes including:
104      - ability to build/run more easily within Cygwin and MacOS X
105      - more complicated Makefiles with a stronger dependence on Gnu Make
106    o pkg/seaice modifications
107      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
108        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
109        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
110      - changed proxy for geostrophic velocity and updated
111        verification/lab_sea/results/* accordingly
112      - removed ADI dynamic solver from pkg/seaice
113      - replaced all occurrences of 1/CSTICE or 1/CSUICE
114        they caused a segmentation fault under certain circumstances
115      - removed unused field WATR
116    o bug fix in exf-package:
117      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
118         now reflect that.
119    o small fixes in the cal-package:
120      - set reference date to first of January for the 'model'-calendar
121      - failing of cal_CheckDate in cal_FullDate now actually results in a
122        warning
123    o small modifications in exf-package to increase flexibility:
124      - change climtempfreeze from a constant to a runtime parameter that
125        is specified in data.exf_clim (default = -1.9)
126      - introduce runtime parameter windstressmax (default = 2.0) that is
127        specified in data.exf
128    o fix in pkg/thsice:
129      - update Evap (Tsf changes) to be consistent with Latent heat flux
130      - maintain snow precipitation unchanged (even if Tsf >=0).
131     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
132    
133    checkpoint52m_post
134    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
135      this does not change any of the results, because myIter=0 in swfrac always
136      lead to jwtype=2 (the default anyway), but the call makes little sense
137      as a default
138    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
139    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
140      atmospheric model (AIM) to use it ; add a "slab ocean" component.
141    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
142    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
143    o extending useSingleCpuIO option to work with new exch2 I/O format
144      - old-style, missing-tile I/O is still accessible by defining CPP
145        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
146    o monitor package can write to NetCDF files and/or STDOUT
147    o fix re-definition bug in MNC_GRID_INIT_ALL()
148    o doc/api_reference added
149      - a framework for building an API Reference Manual using all
150        the "protex" comments embedded in the code
151      - see pkg/generic_advdiff, pkg/mnc for examples
152    o MNC:
153      - make myThid the last argument for all subroutines
154      - new default for the grid files: NO halos
155      - add useMNC and other run-time flags
156      - separate per-file-group handling of the unlimited dimension
157      - early initialization of MNC w/ flags read at the eeboot stage
158        and lookup tables set in initialize_fixed
159      - write all MNC output to a freshly-created directory
160    o thermodynamics sea-ice (thsice) is now tested with testreport.
161    o test exp. advect_cs: use the standard cs32 grid ; update output.
162    o Added functionality to grdchk:
163      pick global i,j,k position (or nearest wet) where to perform check.
164    
165    checkpoint52l_post
166    o new land formulation:
167      a) use ground enthalpy as prognostic variable to ensure exact
168         energy conservation.
169      b) account for water temperature and for latent heat of freezing
170         in all processes (rain, run-off, ground storage)
171      c) compute surface and ground temperature implicitly.
172    o aim_v23 modification for new land model:
173      a) Treat separately land / ocean / sea-ice surface fluxes
174         to allow implicit computation of land & sea-ice surface temp.
175      b) add snow precipitation.
176    checkpoint52l_pre
177    
178    o fix problem (when 1 tile is empty) in min/max monitor.
179    o fix bug in timeAve (u,vZetatave in common block)
180    o no restoring terms under ice for pkg/seaice
181    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
182    o bug fix for pkg/seaice pickups
183    o change MNC call locations and add coordinate attributes
184    o mask vorticity at the corner ; affects global_ocean.cs output
185    o fix ini_curvilinear_grid ; test CS experiments with mpi
186    o aim.5l_cs: modify sea-ice fraction input file ; update output
187    o exf: Adding simple range check routine for exf fields after read
188    
189    checkpoint52k_post
190    o removed top-level directory "diags"
191      - we migrated these functions to pkg/timeave a long time ago
192    o fixed bug introduced in pkg/monitor
193    o accuracy ctrlprec = 32 insuffient for gradient checks using
194      averaged fields (I/O via cost_averages)
195      -> use ctrl.h in active_file*.F to control I/O precision.
196    o paramter list of CALL ADTHE_MAIN_LOOP
197    o added initial do_the_model_io to ecco
198    o set all ...Freq to zero after cost_final
199      taveFreq, dumpFreq, pChkptFreq
200    o MAIN and ECCO differentiability restored
201    
202    checkpoint52j_post
203    o fix nchklev in tamc.h for global_ocean...
204    o Bringing flow and store directives up-to-date
205    o Really weird thing!
206      call do_the_model_io from the_main_loop with parameters
207      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
208      TAF places a faulty re-call of initialise_varia
209      after cost_final call which should not be there!
210    checkpoint52j_pre
211    
212    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
213      error messages
214    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
215    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
216      debug output
217    o modfied mdsio_writefield.F to handle non-global files under exch2
218    o update AIM Cubed-Sphere exp (aim.5l_cs):
219      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
220    o update AIM Equatorial Channel exp:
221      use standard aim_v23 pkg and change the SST fields to be more realistic.
222    o globalFile now works with exch2
223    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
224      mon_vort3.F to make exch2 friendly with >1 tile per cube face
225    o limit timeave output for hi-res integrations
226    
227    checkpoint52i_post
228    o removed CPP_EEOPTIONS.h from verification/*/code
229    o updated the tiling for global_ocean_pressure
230    checkpoint52i_pre
231    
232    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
233      the old pkg/aim).
234    
235    checkpoint52h_pre
236    o shortened offending lines in exch2_send_rx?.template
237    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
238    o genmake2: add build & execute test for NetCDF code
239    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
240      old grid files, moved CPP_EEMACROS.h to pkg/exch2
241    o added useSingleCPUIO flag to monitor.F and mon_out.F
242    o added temporary hack for sea-ice dynamics on the cube:
243      metric terms are ignored and it is assumed that
244      there is no sea-ice on cube faces 1, 2, 4, and 5.
245    
246    checkpoint52f_post
247    o added exch2 cube routines to pkg/exch2
248    o modified hs94.cs-32x32x5 to use it
249    o added new grid files to hs94.cs-32x32x5
250    checkpoint52f_pre
251    
252    checkpoint52e_post
253    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
254      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
255    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
256      to work with implicit vertical advection and AB ;
257    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
258    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
259     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
260    checkpoint52e_pre
261    
262    o fix bug in impldiff when Nr=1 or Nr=2.
263    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
264    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
265    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
266      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
267    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
268    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
269    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
270    
271    checkpoint52d_post
272    o re-tiled many expts to allow comparison in multi-processor mode
273      - updated output accordingly
274      - changed hs94.128x64x5 to use intial T from file rather than use the
275        random number generator
276    o add infrastructure in model routines for fizhi and gridalt packages
277    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
278    o changes to permit hi-res, cubed-sphere, configuration
279      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
280      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
281      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
282        of surface winds for the cube
283      (A verification experiment, based on global_ocean.cs32x15, but with
284       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
285       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
286       complete with example surface forcing files and matlab scripts to look
287       at the output and compare it with that of global_ocean.cs32x15.)
288    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
289       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
290       to conform to the common rule.
291    o check-in the first version of the coupler + interfaces for multi-components
292       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
293       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
294       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
295       - ocean and atmos. share the same horizontal grid (no interpolation).
296       - exchanges between component and coupler is done in forward_step
297    o new verification experiment, cpl_aim+ocn:
298       coupled ocean - AIM atmosphere on cs32 grid.
299    
300    checkpoint52d_pre
301    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
302    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
303    
304    checkpoint52c_post
305    o Fixing OPTIONS files for use of exf:
306      - ALLOW_ECCO not needed
307      - ECCO_CPPOPTIONS.h should not be included from
308        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
309        as has been the case in the past
310      - All cal/exf related options are currently set in
311        single header file. Should remain so until we
312        agree on a consistent new policy.
313    o Removed all CPP options for cal package.
314      cal has no more CPP options.
315    o modified STOREs in GAD_ADVECTION
316    o corrected key comp. for passkey
317    
318    checkpoint52b_post
319    o new version: "thsice" of thermodynamic sea-ice pkg:
320     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
321     - modify fluxes but do not change theta directly;
322     - light cleaning of bulk_force pkg (still needed with thsice).
323     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
324       + output_thsice.txt to test thsice & bulk_force pkgs.
325    o put back grid & coriolis monitor output.
326    checkpoint52b_pre
327    
328    o call "do_the_model_io" at the beginning (=> dump initial state)
329    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
330    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
331      (need info on NUMBER_OF_PTRACERS)
332    o missing PTRACERS headers in some routines
333    o default tamc.h in pkg/autodiff supposed to crash
334      to ensure proper customization
335    
336    checkpoint52a_post
337    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
338      - moved surfaceTendencyTice from pkg/seaice to main code
339      - subroutine FREEZE_SURFACE now limits only surface temperature
340        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
341        => new output.txt for global_ocean.cs32x15 & global_with_exf
342      - keep the old version of FREEZE for backward compatibility;
343        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
344      - corresponding modifs for TAF directives
345    o added surface flux output variables to TIMEAVE_STATVARS
346    o time-averaged output for pkg/ptracers
347    o fix problem with ECCO-related divided adjoint
348      snapshot file was missing some ad-variables,
349      but no warning issued by TAF
350    
351    checkpoint52a_pre
352    o some bug fixes for #undef REAL4_IS_SLOW
353    
354    checkpoint52 = ecco_c52_e35
355    o after testing adjoints of checkpoint51u_post
356    
357    checkpoint51u_post
358    o this is the post-merge tag of the ecco-branch
359      (needs another clean checkout and re-testing)
360    o various natl_box_adjoint configs and results
361      but no input fields
362    o obcs adjoint not yet merged!
363    o adding ECCO global 1x1 and 2x2 degree configs
364    o updated/extended some store directives for seaice
365    o pkg/ecco now containes ecco-specific part of cost function
366    o top level routines the_main_loop, forward_step
367      supersede those in model/src/
368      previous input data.cost now in data.ecco
369      (new namelist ecco_cost_nml)
370    o in ctrl/ cleaned some cross-dependencies and updated CPP options
371    
372    checkpoint51t_post
373    o this is the pre-merge tag of the ecco-branch
374    
375    checkpoint51s_post
376    o cleanup: removed various obsolete #define-s
377    o pkg/grdchk
378      - renamed 'ph-grd 3' to 'grad-res'
379      - merged from ecco-branch
380        (remaining bug fixes for obcs gradient checks)
381      - additional high-precision output for testreport
382        (grep for 'precision_grdchk_result')
383    
384    checkpoint51r_post
385    o cleaned up or removed CPP_OPTIONS.h files
386    o updated results for some of the tests to reflect the new
387      optfiles (-ieee: -O0 instead of -O3)
388    
389    checkpoint51q_post
390    o cd_code:
391      - moved cd_scheme.F -> cd_code_scheme.F
392      - separate read_checkpoint from cd_code_ini_vars.F
393      - separated cd_code part from write_checkpoint
394      - updated AD_SOURCE, generated .flow
395      - added CD_CODE_VARS.h to the_main_loop
396      - Moving cd_code specific store dir.s to pkg/cd_code
397    o ctrl package totally restructured
398      - pack/unpack now optional and decoupled from
399        xx_/adxx_ I/O
400      - ctrl_pack/unpack cleaned
401        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
402      - confined inclusion of AD_CONFIG.h to where necessary.
403    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
404    
405    checkpoint51p_post
406    o create initial cd_code package
407      - WARNING: the initialization of fields within packages
408        is broken because INI_FIELDS (where READ_CHECKPOINT is
409        called) is called *before* PACKAGES_INIT_VARIABLES.
410        This seems to be backwards since
411        1) its important to initially zero the entire field including
412           the "halo" region
413        2) zeroing needs to be done *before* reading pickup info
414           and the pickup call might or might not happen in any
415           particular run
416      - this needs an overhaul for R2
417    o cleanup verification/*/code/GMREDI_OPTIONS.h
418    o cleanup testreport
419    
420    checkpoint51o_post
421    o bringing AD-related verif's up to date with genmake2
422      - carbon/
423      - global_ocean.90x40x15/
424      - hs.94.1x64x5/
425      - (front_relax/ )
426    o (more) consistent directory structure for AD-related verif.'s
427    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
428    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
429    o bug fix in find_alpha.F for MDJWF:
430      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
431        change rho -> rho-rhoConst
432      - replace call find_rho to find_rhonum
433    o initialisation of rFlx extended to full array (required by TAF)
434      and shifted to thermodynamics
435    o removed PTRACERS.h in ptracers routine
436    o added surfacetendencyPtr to S/R parameter list pracers_forcing
437    o Correcting initialisations for fVerU, fVerV.
438    o helping TAF to recognize dependency on kUp for
439      fVerU, fVerV
440    o Replacing delZ by delR in pkg/ctrl/
441    checkpoint51o_pre
442    
443    o undid all of cp51 pending some cleanups and discussion
444    o added the [#include "AD_CONFIG.h"] statement to all files that need
445       it for adjoint/tl #defines
446     o re-worked the build logic in genmake2 to support AD_CONFIG.h
447     o removed tools/genmake since it no longer works
448    
449    checkpoint51n_post
450    o modifications to make FREEZE flux visible to pkg/kpp
451      - moved surfaceTendencyTice from pkg/seaice to main code
452      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
453      - subroutine FREEZE now limits only surface temperature
454        (this means new output.txt for global_ocean.90x40x15,
455         global_ocean.cs32x15, and global_with_exf)
456    o added surface flux output variables to TIMEAVE_STATVARS
457    
458    checkpoint51n_pre
459    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
460    o added [#include "AD_CONFIG.h"] to all files that use the following
461      defines:
462      - ALLOW_ADJOINT_RUN
463      - ALLOW_TANGENTLINEAR_RUN
464      - ALLOW_ECCO_OPTIMIZATION
465    
466    checkpoint51m_post
467    o incorporating changes to get TAMC/TAF working in genmake2
468      - added new TAMC/TAF targets to the Makefile
469      - various cleanups related to package handling
470      - these changes should have no impact on the forward model
471    
472    checkpoint51l_post
473    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
474     - faster algorithm for cal_addtime.F
475     - higher precision arithmetic, where needed
476     - pkg/exf *startdate variables changed from calendar date to
477       model integration time
478    
479    checkpoint51l_pre
480    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
481    o enable to apply restoring on S & T only in a latitude band.
482    o update output (external_forcing_surf modif. change truncation errors)
483       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
484    
485    checkpoint51k_post
486    o change default to: useNHMTerms=.FALSE.
487     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
488       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
489     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
490        exp1, ideal_2D_oce
491     - change data file of oceanic exp (leave the results unchanged for now)
492       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
493    o set gravitySign automatically according to the vertical coordinate used
494      (and change sign: back to "logical" value: +1 when R increases downward)
495    o added an include barrier to the default CPP_OPTIONS.h and
496      removed the #include "PACKAGES_CONFIG.h" from it
497    o fix a bug in mom_fluxform (from chk51j_post)
498    
499    checkpoint51j_post
500    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
501    o adjusted some flow directives (dynamics, thermodynamics)
502    o added cubed-sphere case to test cost function
503    o heckpoint_lev?_directives.h now include
504      pkg-specific directives, whenever those are enabled.
505    o Moving pkg-specific flow directives to corresponding pkg
506      Moving pkg-specific differentiation list to corresponding pkg
507      Moving pkg-specific checkpoint-lev storing to corresponding pkg
508      ---> conventions are
509           - pkg_ad.flow
510           - pkg_ad_diff.list
511           - pkg_ad_check_lev?_dir.h
512    
513    checkpoint51i_post
514    o merge of the branch-genmake2
515      - knowingly breaks the older genmake
516      - automatic generation of all ALLOW_${PKG_NAME} defines
517      - new testreport supersedes older testscript
518    o large number of package inclusion and header cleanups
519    checkpoint51i_pre
520    
521    o new output for adjoin of global ocean vector invariant
522    o fix for checkpoint of thermodynamic seaice and bulk_force
523    o Steph gchem various cleanups
524    
525    checkpoint 51h_pre
526    o fixed some single quotes
527    o modify gchem pkg to be more versatile
528    o modifications to clean up dic pkg
529    o add pkg/cfc
530    
531    checkpoint51g_post
532    o provide links for ARPACK and ADM*TLM
533    o start removing verification/vero/
534    o update AD-related stuff
535      (in particular some IF-statements in model/src/ routines)
536    o adding to verification/global_ocean.90x40x15/ adjoint of
537      vector invariant setup
538    
539    checkpoint51f_post
540    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
541    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
542      of tracer Green's fucntions for ocean inversion project.
543    
544    checkpoint51f_pre
545    o Added on-the-fly spatial interpolation capability
546        "USE_EXF_INTERPOLATION" to pkg/exf.
547      - This is a temporary Cartesian-grid hack until
548        the super-duper ESMF coupler becomes available.
549      - See verification/global_with_exf/README for usage example.
550      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
551        flags and modified pkg/seaice accordingly.
552    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
553        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
554        non-local transport term.
555    
556    checkpoint51e_post
557    o pkg/mom_vecinv:
558      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
559      - add time-ave diagnostic of vorticity advection.
560    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
561    o atmospheric geopotential: - include water vapor effect;
562                                - use p^kappa in p* scaling.
563    o land pkg: read initial state from files.
564    o AIM : add stratospheric drag in the upper level
565    
566    checkpoint51d_post
567    o change function ILNBLNK (=> last non-blank char.) to return zero
568      (instead of the string length) when the string. char is empty
569    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
570    o modif's to restore TAMC compatibility
571      - avoid "_d" constructs in PARAMETER declarations
572      - avoid interrupting lines by comment lines
573    o Use cluster local disks for purely local I/O
574      vs. globally visible disks needed for ctrl stuff
575      (merged from ecco-branch)
576      - new active_file_loc... and mdsio_..._loc routines
577      - affected packages: autodiff, ctrl, grdchk, mdsio
578    
579    checkpoint51c_post
580    o introducing integer flag debugLevel
581      - debLevZero: suppress all output
582      - debLevA: standard
583      - debLevB: equivalent to current debugMode=.TRUE.
584    o introducing pathname variable mdsioLocalDir for mdsio
585      that can be specified at runtime
586      (relevant for cluster I/O to local disk)
587    `
588    >>>checkpoint51b_post
589    adjoint of ptracers
590    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
591    o extended state in checkpoint_lev?, etc.
592    o alternative ctrl/cost with tr1 or ptracer
593    o new comlev1_bibj_ptracers
594    o new ptracers.flow
595    o made ptracers_forcing same as external_forcing_s
596    o added verification for adjoint with ptracers
597      - adm. grdchk fail so far
598      - tlm. grdchk OK
599      - checked tapelev/comlev recomputations: OK
600    <<<checkpoint51b_pre
601    
602    checkpoint51a_post
603    o added code for biogeochemistry package
604      - new pkgs: dic, gchem
605      - new subroutine in ptracers
606    o modify code for biogeo packages
607      - in model/src and pkg/ptracers
608    
609    checkpoint51
610    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
611      - autodiff, ctrl, exf, grdchk, seaice
612      kept separate packages
613      - cost, ecco, obcs
614    o updating verification/internal_wave, verification/lab_sea
615      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
616    
617    checkpoint50i_post
618    o Preparing next differentiable checkpoint and sync
619      of MAIN vs. ecco-branch
620      - 1st step: this one is differentiable
621      - 2nd step: next(! not this) checkpoint will have updated packages
622                  from ecco-branch)
623    
624    checkpoint50h_post
625    o new package "land": provide surface BC for AIM.
626    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
627    o AIM: use true log-P extrapolation for near surface temp (= as in
628        F.Molteni paper) ; update aim.5l_cs output.
629    o New variable in PARM03 for more flexible pickups
630    o somewhat cleaned package initialisation sequence for
631      ctrl/ cost/ ecco/ in packages_... routines
632    
633    checkpoint50g_post
634    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
635      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
636      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
637        made the default because of faster convergence than ADI
638    
639    checkpoint50f_post
640    o exf totally restructured
641      - replaced all exf_set_ routines by one generic exf_set_gen.F
642        and made sure it's still differentiable
643      - split exf_getffields.F into new exf_bulkformulae.F
644      - exf_inscal_/exf_outscal_ suffixes consistent with field names
645      - updated adjoint/makefile and relevant verif. accordingly
646    
647    checkpoint50f_pre
648     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
649          + change Evap over land. (update aim.5l_cs output)
650     o added missing .cvsignores and made uniform across expts
651     o changed configuration of tidal_basin_2d expt
652     o added pkg/debug functions for tracing code in fatal crashes
653     o tidied pkg/monitor to use MONITOR_OPTIONS.h
654     o new fn in pkg/monitor to stop model if solution grows too big
655     o removed lots of single quotes from comments
656    
657    checkpoint50e_post
658    o make KPP work with PTRACERS
659     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
660       nearly a copy of kpp_transport_s
661     - there is no analogue to SurfaceTendencyS, so I have to use
662       gPtr(of the surface layer) instead
663    o add a new platform SunFire+mpi (SunFire 15000) to genmake
664    checkpoint50e_pre
665    
666    checkpoint50d_post
667    o change kpp output from multiple-record state files to single-record state
668      files analogous to write_state.F
669    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
670      analogous to the cg2d-related output.
671    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
672      so that writing to internal file fn (with length 512) fails.
673    checkpoint50d_pre
674    
675    checkpoint50c_post
676    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
677    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
678    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
679    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
680    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
681    
682    checkpoint50c_pre
683    Merging from release1_p13:
684    o bug fix for pkg/seaice dynamic solver
685    o Added SEAICE_initialHEFF to pkg/seaice
686    
687    checkpoint50b_post
688    o store u*,v* in gU,V instead of in guNm1,gvNm1
689    o in order to put the momForcing out of the Adams-Bashforth:
690      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
691      to timestep.F
692    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
693    o re-generate output for highly sensitive test-exp:
694       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
695    
696    checkpoint50b_pre
697    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
698    o corrected CPP option mismatch in exf_Bulk... functions for case
699      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
700    
701    checkpoint50a_post
702    o Bug fix for merging between c50 and KPP.
703      ikey was passed from thermodynamics to kpp_calc via
704      common block rather than being recomputed in kpp_calc,
705      in contradiction with new key itdkey.
706      New key ikppkey created, and tamc.h headers updated.
707    
708    checkpoint50
709    - 2nd step of merge with ecco-branch:
710      merge changes in ecco-branch back into main trunk
711    - bug fix in find_alpha
712    - more storing in gmredi_calc_tensor.F, kpp_routines.F
713    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
714    - merged some sliced AD support routines
715    
716    checkpoint49
717    merged from ecco-branch:
718    o exf:
719      - Enable initialisation of forcing fields to constant
720        (runtime) values.
721      - in exf_getffields.F
722        Reduce i-/j-loop to interior domain, discarding overlaps.
723        That also fixes wrong TAF-key computations for key_1, key_2
724        with bulf formulae.
725      - exf_init.F modify #ifdef for exf_init_evap
726      - exf_getffieldrec.F, ctrl_getrec.F
727        The following INT-usages are not safe:
728          fldsecs  = int(fldsecs/fldperiod)*fldperiod
729          fldcount = int(fldsecs/fldperiod) + 1
730        and were modified.
731    o autodiff: checkpoint_lev...
732      - updated storing for bulk formulae (some arrays were missing)
733      - added state for seaice package
734      - synchronized with main branch
735    o DIVA:
736      Modif.s in
737      - the_main_loop.F
738      - the_model_main.F
739      and added cost_final_restore.F cost_final_store.F
740      o With these changes, it is possible to fully separate
741        the first forward run to compute the cost function (mdthe_main_loop)
742        and adjoint runs over individual DIVA intervals (adthe_main_loop)
743        into separate model executions.
744        This enables better tuning of DIVA to given queue sizes.
745      o Loss of cost function value in consecutive DIVA runs is
746        fixed by storing to 'costfinal' file.
747      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
748        beginning/end of adjoint integration is accounted for.
749      The current changes apply to TAF-1.4.26.
750      TAF has one remaining bug, requiring one manual change
751      (see MITgcm manual).
752    o cal: synchronized between MAIN and ecco-branch
753    
754    checkpoint48i_post
755    o Changes to restore differentiability of code w.r.t. previous tag
756      (mostly adding new routines to make list and replacing
757      pressure by totPhiHyd).
758    o Updated and merged grdchk package
759      - has both ADM and TLM checks
760      - works for single- and multi-proc.
761      - output cleaned
762      - worked successfully for parallel DIVA
763    o genmake:
764      - Adding -platform=SP4
765      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
766    o Modif. for DIVA:
767      ctrl_unpack should not be called in intermediate DIVA interval.
768      (similar thing would apply for active files such as
769      tbar, sbar, psbar, which should not be reinitialised;
770      only relevant for ecco-branch)
771    
772    checkpoint48h_post
773    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
774    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
775    o Added SEAICE_initialHEFF to pkg/seaice
776    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
777    
778    checkpoint48g_post
779    --- EOS:
780    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
781      store total Potential in totPhyHyd for diagnostics & EOS.
782    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
783    --- Pressure/geopotential gradient:
784    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
785    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
786      ( changes results of global_ocean_pressure )
787    o NLFS + z-coord.: add eta*Rho' contribution.
788    o accurate phiHyd when using interface-W at the middle between 2 centers
789     ( changes results of ideal_2D_oce )
790    o includes r* 2nd term in potential gradient.
791    
792    checkpoint48f_post
793    Merging from release1_p12:
794    o Modifications for using pkg/exf with pkg/seaice
795      - improved description of the various forcing configurations
796      - added basic radiation bulk formulae to pkg/exf
797      - units/sign fix for evap computation in exf_getffields.F
798      - updated verification/global_with_exf/results/output.txt
799    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
800      (SBO) core products, including oceanic mass, center-of-mass,
801      angular, and bottom pressure (see pkg/sbo/README.sbo).
802    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
803      to avoid negative values in shallow regions.
804      - updated verification/natl_box/results/output.txt
805      - updated verification/lab_sea/results/output.txt
806    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
807    o Added useSingleCpuIO option (see PARAMS.h).
808    o Updated useSingleCpuIO option in mdsio_writefield.F to
809      work with multi-field files, e.g., for single-file pickup.
810    o pkg/seaice:
811      - bug fix in growth.F: QNET for no shortwave case
812      - added HeffFile for specifying initial sea-ice thickness
813      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
814    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
815      kpp_transport_t.F, forward_step.F, and the_main_loop.F
816    o pkg/seaice:
817      - adjoint-friendly modifications
818      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
819    
820    checkpoint48e_post
821    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
822    o dynamics: change definition of computational domain & adapt mom_fluxform
823      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
824    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
825        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
826        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
827        global_ocean.90x40x15 global_with_exf global_ocean_pressure
828        inverted_barometer solid-body.cs-32x32x1
829      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
830    
831    checkpoint48d_post
832    o in preparation for r*:
833     a) use pre-computed gradient of hydrostatic potential:
834        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
835     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
836        => affects results of glob_oce_pressure (different truncation error)  
837      update output.txt of ideal_2D_oce & global_ocean_pressure
838    
839    checkpoint48d_pre
840    o in preparation for r*:
841      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
842      pass the 2 comp. of the grad. as arguments to momentum S/R.
843      but for the moment, only used if it does not change the results.
844    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
845    
846    checkpoint48c_post
847    Modifications in treatment of initial flux forcing controls
848    to avoid extra storing of flux fields.
849    
850    checkpoint48c_pre
851    o Added tidal_basin_2d experiment (currently 1D!)
852    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
853    
854    checkpoint48b_post
855    o r* coordinate added in #ifdef NONLIN_FRSURF block.
856     (modification to pressure gradient not yet implemented)
857    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
858      (for U & V) that are used for vertical advection of momentum.
859    
860    checkpoint48a_post
861    o In preparation for r*, use temp. array to compute vertical transport
862       in flux-form momentum pkg. => change results of few test-exp.
863      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
864                        lab_sea, natl_box & plume_on_slope
865    
866    checkpoint48
867    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
868    
869    checkpoint47j_post
870    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
871    o moved adexch from forward_step to addummy_in_stepping
872    o added exch in ctrl_map_...
873    o aveFreq.=0. at end of cost_final to avoid overwrite in
874      reverse checkpointing loop
875    o Yet more changes in gmredi:
876      * adgmredi_calc_tensor
877        avoiding all recomputation of gmredi_slope_limit
878      * adgmredi_x/y/rtransport
879        added flag for excessive storing to avoid recomp. of
880        u/v/rtans, dTdx/y/z
881        -> this is not really necessary and very memory-consuming
882      * adgmredi_slope_psi:
883        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
884      * gmredi_slope_limit
885        re-activated full calculation of taperfct for case 'ac02'
886    o updating verification/ adjoints of carbon, global_ocean.90x40x15
887    
888    checkpoint47i_post
889    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
890    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
891      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
892    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
893    o gmredi: fix few bugs.
894    
895    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
896    This will be a good checkpoint to plug into the ecco-branch.
897    o few modif.'s to get latest version adjointed
898      (mainly kick out code in ini_linear_phisurf)
899    o modif's to run adjoint with exactConserv
900    o case GM_BOLUS_ADVEC should be cleaned
901      S/R gmredi_slope_psi should be cleaned
902    o verification/carbon now has exactConserv=.TRUE.
903    
904    checkpoint47g_post
905    o time-average AIM output: becomes independent from statvars time-average
906      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
907    o After TAF bug fix:
908      Tested adjoint of gmredi package.
909      Tests were done with checkpoint47 rather than with latest
910      checkpoint47f_post since the latter is broken for the adjoint
911      verification/carbon/ contains both ADM and TLM gradient checks.
912    Here they are, before they get changed/lost/stolen.
913    Mostly modif.'s to fix numerical sensitivities.
914    Gradient checks OK for
915    - GM_taper_scheme:
916      * clipping
917      * ac02
918      * linear
919      * glw91
920      * dm95
921      * ldd97
922    - GMREDI_OPTIONS:
923      * GM_VISBECK_VARIABLE_K
924      * GM_NON_UNITY_DIAGONAL
925      * GM_EXTRA_DIAGONAL
926      * GM_BOLUS_ADVEC
927    in conjunction with data.gmredi parameters to be checked in
928    in a few minutes under verification/carbon/code/
929    
930    checkpoint47f_post
931    Merging from release1_p10:
932    o modifications for using pkg/exf with pkg/seaice
933      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
934        and SEAICE_EXTERNAL_FLUXES
935      - pkg/exf CPP options EXF_READ_EVAP and
936        EXF_NO_BULK_COMPUTATIONS
937      - usage examples are Experiments 8 and 9 in
938        verification/lab_sea/README
939      - verification/lab_sea default experiment now uses
940        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
941    
942    checkpoint47e_post
943    o created a tag prior to creating a branch
944    
945    checkpoint47d_post
946    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
947      at the bottom boundary had an erroneous half slip boundary condition
948    o added bottom drag and no slip boundary condition capabilities to
949      oceanic pressure coordinates code
950    o added new verification experiment global_ocean_pressure, this experiment is
951      also described in the tutorial section of the manual
952    checkpoint47d_pre
953    
954    checkpoint47c_post
955    o Added a verification experiment for a global cubed-sphere ocean run
956      -  verification/global_ocean.cubed32x32x30
957      -  uses pkg/therm_seaice and pkg/bulk_forcing
958    
959    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
960    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
961      when using P-coordinate; only implemented for atmospheric config.
962    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
963      NOTES: requires option NONLIN_FRSURF to be "#define".
964    o update advect_xz/results/output.txt (left from checkpoint44g_post)
965    
966    checkpoint47b_post
967    Merging from release1_p9:
968    o pkg/seaice
969      - removed GOTO's and added taf directives
970      - double precision constants to reduce the g77 (Linux)
971        to F77 (SGI) differences reported in release1_p8
972    o tools/genmake
973      - added SGI options
974    o verification/testscript
975      - updated to that of checkpoint47a_post
976    o verification/global_ocean.90x40x15/input/eedata
977      - modified for SGI f77 compatibility
978    o verification/lab_sea
979      - added description of sea-ice model
980      - added missing matlab routines
981      - added test of thermodynamics parallelization
982    
983    checkpoint47a_post
984    o new pkg: aim_v23
985     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
986       for now, keep the same surface forcing as before.
987     - Part-Cell implemented into AIM; check that Heat & Water are conserved
988     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
989     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
990    o add diagnostic of surface correction term in monitor output
991    
992    o bulk_force and therm_seaice
993    - Two packages:  bulk_force (Bulk forcing)
994      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
995    - Earlier integration from Stephaine Dutkiewicz
996      and Patrick Heimbach.
997    - Two ifdef statements for compile time,
998       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
999    
1000    checkpoint47
1001    differentiable version of checkpoint46n_post
1002    o bug fix in quasihydrostaticterms
1003    o * "clean" adjoint code (in terms of extensive recomputations)
1004        can now be obtained for all GMREDI options (i.e. for
1005        - GM_VISBECK_VARIABLE_K
1006        - GM_NON_UNITY_DIAGONAL
1007        - GM_EXTRA_DIAGONAL
1008        - GM_BOLUS_ADVEC )
1009      * However, wrong gradient check problem remains unsolved.
1010      * New CPP options have been introduced for different
1011        tapering schemes
1012    o external_fields_load now part of differentiation list
1013    o pressure needs multiple storing;
1014      would be nice to have store_pressure at beginning or
1015      end of forward_step, e.g. by having phiHyd global (5-dim.)
1016      (NB: pressure is needed for certain cases in find_rho,
1017      which is also invoked through convective_adjustment).
1018    o recomputations in find_rho for cases
1019     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1020    o #define ATMOSPHERIC_LOADING should be differentiable
1021    o ini_forcing shifted to begining of initialise_varia
1022    o Incorporating QNVS line search routines into MITgcm
1023      (this is separate code, and therefore not under pkg)
1024      lsopt/, optim/
1025    o Updated verification/carbon/
1026      - #define GM_VISBECK_VARIABLE_K
1027      - GM_taper_scheme    = 'ldd97'    
1028    
1029    checkpoint46n_post
1030    Merging from release1_p8:
1031    o verification/natl_box:
1032      updating new external_fields_load routine
1033    o New package: pkg/seaice
1034      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1035      The sea-ice code is based on Hibler (1979-1980).
1036      Two sea-ice dynamic solvers, ADI and LSR, are included.
1037      In addition to computing prognostic sea-ice variables and diagnosing
1038      the forcing/external data fields that drive the ocean model,
1039      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1040      The implied surface heat flux is then stored in variable
1041      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1042      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1043      non-local transport term.  Because this call precedes model
1044      thermodynamics, temperature under sea-ice may not be "exactly" at
1045      the freezing point by the time theta is dumped or time-averaged.
1046      N.B.: fairly large differences in accuracy occur across
1047            different platforms/compilers; comparison between
1048            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1049            generated output gives:
1050       T           S           U           V
1051      C D M    c        m  s        m  s        m  s        m  s
1052      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1053      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1054      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1055    
1056      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1057    o GAD:
1058      - generated new common blocks to account for call of
1059        same gad routines with differing traceridentities
1060        (needed to modify tracerIdentity indices in GAD.h)
1061      - generated separate common blocks for case useCubedSphereExchange
1062        (Department of Futurology)
1063      - parameter lists to gmredi_?transport: added tracerIdentity
1064      - added new key indices to tamc.h
1065    o external_fields_load:
1066      - added this routine to TAF list
1067      - needed to make some common blocks global and additional storing
1068        along the same lines as exf package (checkpoint_lev?_directives.h)
1069    o exf:
1070      updated external forcing package
1071      - bug fixes carried over from ecco-branch
1072        (missing OBCS_OPTIONS.h in two routines)
1073      - enable easy to use "no forcing".
1074      - added exf I/O for atmospheric loading
1075      - added exf I/O for runoff data
1076      - transfered scaling between exf <-> MITgcm to exf namelist
1077    o Adding new verification experiment global_with_exf.
1078      This verification experiment is almost identical to the
1079      global_ocean.90x40x15 experiment, except that it uses
1080      the exf (and cal) package instead of the
1081      external_fields_load routine (cf README file).
1082    
1083    checkpoint46m_post
1084    o modified testscript to return -- when there are no lines of "%MON" output
1085    o added new flag "quasiHydrostatic" for QH mode
1086      and new routine quasihydrostaticterms()
1087    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1088      New routine: mom_u_coriolis_nh()
1089    o fixed sign of non-hydrostatic metric terms in u and v equations.
1090      Depend on correct sign of gravitySign.
1091    o added work.pc* to .cvsignore in aim directories using ifc
1092    o introduced flag for controllin non-hydrostatic metric terms
1093    o removed gravitySign from PARM04
1094    o switched to g77/ifc from pgf77 in aim experiments
1095    
1096    checkpoint46l_post
1097    o made convective adjustment work with pressure coordinates:
1098     - changed the direction of k-loop in convective_adjustment.F for the
1099       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1100     - adjusted the reference pressure k-index in convective_adjustment.F
1101     - adjusted the convection condition in convect.F (in analogy to
1102       calc_ivdc.F)
1103     - convective_adjustment no longer computes anything on the halos
1104     - removed the warnings about negative salinity from find_rho.F and
1105       find_alpha.F; instead the new routine look_for_neg_salinity, called
1106       at the beginning of find_rho, find_alpha, and find_beta, does a
1107       check of the entire slice, if CPP-option
1108       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1109    checkpoint46l_pre
1110    
1111    checkpoint46k_post
1112    o fixed the verification/global_ocean.90x40x15 experiment:
1113     - new bathymetry (the world according to A., JMC, and M.)
1114     - new initial fields and forcing fields (*.bin files)
1115     - new POLY3.COEFFS (for the next release one should switch to a full
1116       equation of state: JMD95P or MDJWF)
1117     - fixed several errors and redundancies in the data file
1118     - experiment uses looped cells
1119     - added matlab directory with diagnostic scripts for plotting of output
1120    
1121    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1122     - read AIM physics parameters from a file (data.aimphys)
1123     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1124    
1125    checkpoint46j_post
1126    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1127    o move wVel computation at the end of the time step, in S/R integr_continuity
1128    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1129    o update timeave pkg for wVel diagnostic.
1130    checkpoint46j_pre
1131    
1132    checkpoint46i_post
1133    o Clean up AIM package (and keep the results unchanged):
1134      include CPP_OPTION and use IMPLICT NONE in all routines ;
1135      declare all the variables _RL ; use _d 0 for all numerical constants.
1136      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1137    
1138    checkpoint46h_post
1139    o cleaned up the use of rhoNil and rhoConst.
1140      - rhoNil should only appear in the LINEAR equation of state, everywhere
1141        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1142        and the dynamical equations are all divided by rhoConst
1143    o introduced new parameter rhoConstFresh, a reference density of fresh
1144      water, to remove the fresh water flux's dependence on rhoNil. The default
1145      value is 999.8 kg/m^3
1146    o cleanup up external_forcing.F and external_forcing_surf.F
1147      - can now be used by both OCEANIC and OCEANICP
1148    checkpoint46h_pre
1149    
1150     Added code to convert surface volume flux (fresh water) into
1151     a mass flux when using P coordinates in the ocean (OCEANICP).
1152     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1153    
1154    checkpoint46g_post
1155    o Include a new diagnostic variable phiHydLow for the ocean model
1156      - in z-coordinates, it is the bottom pressure anomaly
1157      - in p-coordinates, it is the sea surface elevation
1158      - in both cases, these variable have global drift, reflecting the mass
1159        drift in z-coordinates and the volume drift in p-coordinates
1160      - included time averaging for phiHydLow, be aware of the drift!
1161    o depth-dependent computation of Bo_surf for pressure coordinates
1162      in the ocean (buoyancyRelation='OCEANICP')
1163      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1164        Theta, Salinity, and Pressure in the parameter list. This routine is
1165        presently contained in find_rho.F. This routine does not give the
1166        correct density for 'POLY3', which would be a z-dependent reference
1167        density.
1168    o cleaned up find_rho
1169      - removed obsolete 'eqn' from the parameter list.
1170    o added two new verification experiments: gop and goz
1171      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1172    checkpoint46g_pre
1173    
1174    checkpoint46f_post
1175    o Enable tangent linear (forward mode) gradient checks:
1176      - extended active file handling to g_... files
1177      - added TANGENT_SIMULATION to theSimulationMode
1178      - extended grdchk package accordingly
1179    o added tangent linear setup in verification/carbon/code_ftl
1180    o added adjoint setup in verification/front_relax/code_ad
1181    
1182    checkpoint46e_post
1183    o Added new equation of state -> MDJWF
1184      - EOS of McDougall et al., 2002, JAOT, submitted
1185      - caveat: the equation of state is only valid for a smaller (more
1186        realistic?) range of values than JMD95P/Z and UNESCO
1187      - added masks to the calculation of pressure in store_pressure
1188      - added more check values for density in check_eos (ini_eos.F), some of
1189        the old check values are out of the range of the MDJWF-eos, so don't
1190        expect perfect matches for those
1191    checkpoint46e_pre
1192    
1193    checkpoint46d_post
1194    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1195      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1196      case of pressure coordinates. eosType='JMD95Z' in
1197      combination with buoyancyRelation='OCEANICP' now causes an error.
1198    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1199      in find_alpha/beta.
1200    checkpoint46d_pre
1201    
1202    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1203      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1204    
1205    checkpoint46c_post
1206    o Changes necessary for ocean in p-coordinates
1207     -  Added new buoyancy relation = 'OCEANICP'
1208     -  Added new parameters = gravitySign (this used to be contained inside
1209        the factor dRdZ which I added when we first switched to R coordinates).
1210     X GM/Redi is not compatible (yet)
1211     X bottom drag and no-slip need to be debugged.
1212    checkpoint46c_pre
1213    
1214    checkpoint46b_post
1215    o Added new equation of state -> JMD95Z and JMD95P
1216      - EOS of Jackett and McDougall, 1995, JAOT
1217      - moved all EOS parameters into EOS.h
1218      - new routines ini_eos.F, store_pressure.F
1219    o Added UNESCO EOS, but not recommended because it requires
1220      in-situ temperature (see JMD95)
1221    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1222      unesco.f to be used with POLY3
1223    checkpoint46b_pre
1224    
1225    checkpoint46a_post
1226    o Added (atmospheric) pressure loading
1227      - new field in FFIELDS.h, etc...
1228      - new cpp flag ATMOSPHERIC_LOADING
1229    o Changed hFacC to _hFacC in calc_phi_hyd.F
1230    o Added SHORTWAVE_HEATING to some files for consistency
1231    checkpoint46a_pre
1232    
1233    checkpoint46
1234    further merges from release1_p5
1235    o new ctrl package
1236      - adopted from ECCO environment to enable optimization
1237      - added Eliassen Palm fluxes to controls
1238    o added Eliassen Palm flux controls to gradient check package
1239    o cost package
1240      - Compatible with new ctrl package
1241      - added Eliassen Palm cost hooks
1242      - modif's of existing cost functions
1243    o Adjoint-related bug fixes in kpp:
1244      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1245      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1246    o autodiff package
1247      - flow directives:
1248        + new for S/R do_the_model_io
1249        + enhanced for S/R checkpoint
1250        + new gmredi.flow
1251      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1252        disable adcommon.h/g_common.h by default.
1253      - fixed problem for adjoint of global_max
1254    o modified verification/carbon/
1255    o New setup for adjoint of global_ocean
1256    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1257    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1258    o incorporated hooks for sponge layer code (external_forcing.F)
1259    
1260    checkpoint45d_post
1261    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1262    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1263      (affects plume_on_slope "cg2d" output)
1264    o add new parameter deltaTfreesurf for free-surface time stepping
1265    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1266  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1267  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
1268  o add new flags:  o add new flags:

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