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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.334 by jmc, Sat Jul 24 02:47:35 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
7    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
8    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
9    
10    checkpoint54c_post
11    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
12      this affects (truncation error) output.txt of test-exp:
13       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
14    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
15    o change Qnet to always be the net heat flux, (+upward).
16      affects (truncation error) output of natl_box exp.: updated
17    o define the max number of passive tracers in PTRACERS_SIZE.h
18    o start to test mnc routinely in exp0
19    o add sea-ice loading (sIceLoad) as a new forcing field.
20    
21    checkpoint54b_post
22    o add testreport "-j JOBS" option for parallel builds (tested and pretty
23       impressive on Altix and Opteron systems)
24    o diagnostics can now write NetCDF files through the mnc package
25    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
26    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
27    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
28      affects (truncation error) output of lab_sea & natl_box exp.: updated
29    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
30    
31    checkpoint54a_post
32    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
33    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
34    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
35    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
36      + internal_wave (shift in writing cg2d_ini_res)
37    checkpoint54a_pre
38    
39    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
40      - modified verification/lab_sea and natl_box_adjoint accordingly
41    
42    checkpoint54
43    checkpoint53g_post
44    o prepare splitting of thermodynamics: store convect.counter in common block
45    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
46      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
47    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
48    o new parameter "nShapS": allow to treat differently S from T (nShapT)
49    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
50    o restore adjointability
51    
52    checkpoint53f_post
53    o modifications that affect AIM experiment results (update output.txt):
54      - no advection of S at top interface Nr (pkg/generic_advdiff)
55      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
56    o AIM pkg:
57      - include stability function into surf.Flux derivative relative to Tsurf
58      - calculate clear-sky radiation & surface temp. change (for diagnostics)
59    
60    checkpoint53e_post
61    o merged cylindrical coord configuration
62    o added rotating_tank experiment
63    checkpoint53e_pre
64    
65    checkpoint53d_post
66    o faulks upgraded: re-generate output.txt that have changed:
67       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
68    o Added Bryan and Lewis, 1979, vertical diffusivity profile
69    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
70    o added Sadourny discretization of Coriolis
71      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
72      - re-enabled use of omega3 (useAbsVorticity)
73    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
74      vector-invariant equations
75      - note: does *NOT* yet use same variable visc. for no-slip BC's.
76    o recoded the lateral boundary conditions for non-hydrostatic w, this time
77      hopefully without new bugs
78      - still to do: biharmonic friction for non-hydrostatic w
79    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
80    o regenerated output for global_ocean_ebm (using -ieee)
81    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
82      of mom_common/
83      - simple re-arrangement of instructions within computing loop
84    checkpoint53d_pre
85    
86    checkpoint53c_post
87    o new version of coupler for AIM+thSIce and Ocean models
88     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
89     - land: change Evaporation of snow
90     - aim with thSIce: fix bug in snow-precip.
91    o changes to calc_gw.F
92     - bug fix for w^2 term near the bottom boundary
93     - (hopefully) improve the lateral slip boundary condtions for use with
94        partial/looped cells
95      - because the bug fix changes two verification experiments anyway (exp5
96        and plume on slope), change the lateral boundary condition from half slip
97        to the value of no_slip_sides
98    o ebm package wasnt quite up to the parallel task. Fixed that.
99    o Adjoint of EBM package + verification
100      * TLM OK
101      * ADM not sufficient accuracy yet (needs further testing)
102    
103    checkpoint53b_post
104    o Commiting new energy balance model to repository
105      * package is pkg/ebm
106      * verif. is verification/global_ocean_ebm
107      * references are in ebm_driver.F
108    C      * X. Wang, P. Stone and J. Marotzke, 1999:
109    C        Global thermohaline circulation. Part I:
110    C        Sensitivity to atmospheric moisture transport.
111    C        J. Climate 12(1), 71-82
112    C      * X. Wang, P. Stone and J. Marotzke, 1999:
113    C        Global thermohaline circulation. Part II:
114    C        Sensitivity with interactive transport.
115    C        J. Climate 12(1), 83-91
116    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
117    C        Destabilization of the thermohaline circulation
118    C        by atmospheric eddy transports.
119    C        J. Climate 7(12), 1870-1882
120    o Will need long integration testing.
121    checkpoint53b_pre
122    
123    o created pkg/mom_common in preparation for variable viscosity code
124    o renamed and split ini_mnc_io
125    o pkg/land: only liquid water can diffuse or run-off
126    o AIM using land: soil wetness availability account for snow
127    o added printMapIncludesZeros to EEPARMS namelist
128    
129    checkpoint53a_post
130    o restore TAMC compatiility for exf_constants.h
131      (no usage of _d in .h)
132    o Additional storing in KPP in an attempt to fix
133      TAMC problem with adjoint of KPP code.
134      (no success...)
135      Identical code works fine with TAF.
136    o Fixed verification/natl_box_adjoint experiments.
137      Initial conditions for Experiments 4 and 5 are now
138      set to "SEAICE_initialHEFF=0", which is more reasonable,
139      and hence gives results closer to that of Experiment 2.
140      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
141    
142    checkpoint53
143    o stable checkpoint with up to date adjoint
144      TLM tests only run for 1st grdchk at the moment. Its unclear if
145      this is a code problem or a problem with resetting code for g_
146      variables that is being autogenerated wrong.
147      Otherwise:
148       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
149       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
150         are both still in chaos following their security messes.
151    
152    checkpoint52n_post
153    o various build (mostly genmake2) changes including:
154      - ability to build/run more easily within Cygwin and MacOS X
155      - more complicated Makefiles with a stronger dependence on Gnu Make
156    o pkg/seaice modifications
157      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
158        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
159        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
160      - changed proxy for geostrophic velocity and updated
161        verification/lab_sea/results/* accordingly
162      - removed ADI dynamic solver from pkg/seaice
163      - replaced all occurrences of 1/CSTICE or 1/CSUICE
164        they caused a segmentation fault under certain circumstances
165      - removed unused field WATR
166    o bug fix in exf-package:
167      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
168         now reflect that.
169    o small fixes in the cal-package:
170      - set reference date to first of January for the 'model'-calendar
171      - failing of cal_CheckDate in cal_FullDate now actually results in a
172        warning
173    o small modifications in exf-package to increase flexibility:
174      - change climtempfreeze from a constant to a runtime parameter that
175        is specified in data.exf_clim (default = -1.9)
176      - introduce runtime parameter windstressmax (default = 2.0) that is
177        specified in data.exf
178    o fix in pkg/thsice:
179      - update Evap (Tsf changes) to be consistent with Latent heat flux
180      - maintain snow precipitation unchanged (even if Tsf >=0).
181     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
182    
183    checkpoint52m_post
184    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
185      this does not change any of the results, because myIter=0 in swfrac always
186      lead to jwtype=2 (the default anyway), but the call makes little sense
187      as a default
188    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
189    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
190      atmospheric model (AIM) to use it ; add a "slab ocean" component.
191    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
192    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
193    o extending useSingleCpuIO option to work with new exch2 I/O format
194      - old-style, missing-tile I/O is still accessible by defining CPP
195        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
196    o monitor package can write to NetCDF files and/or STDOUT
197    o fix re-definition bug in MNC_GRID_INIT_ALL()
198    o doc/api_reference added
199      - a framework for building an API Reference Manual using all
200        the "protex" comments embedded in the code
201      - see pkg/generic_advdiff, pkg/mnc for examples
202    o MNC:
203      - make myThid the last argument for all subroutines
204      - new default for the grid files: NO halos
205      - add useMNC and other run-time flags
206      - separate per-file-group handling of the unlimited dimension
207      - early initialization of MNC w/ flags read at the eeboot stage
208        and lookup tables set in initialize_fixed
209      - write all MNC output to a freshly-created directory
210    o thermodynamics sea-ice (thsice) is now tested with testreport.
211    o test exp. advect_cs: use the standard cs32 grid ; update output.
212    o Added functionality to grdchk:
213      pick global i,j,k position (or nearest wet) where to perform check.
214    
215    checkpoint52l_post
216    o new land formulation:
217      a) use ground enthalpy as prognostic variable to ensure exact
218         energy conservation.
219      b) account for water temperature and for latent heat of freezing
220         in all processes (rain, run-off, ground storage)
221      c) compute surface and ground temperature implicitly.
222    o aim_v23 modification for new land model:
223      a) Treat separately land / ocean / sea-ice surface fluxes
224         to allow implicit computation of land & sea-ice surface temp.
225      b) add snow precipitation.
226    checkpoint52l_pre
227    
228    o fix problem (when 1 tile is empty) in min/max monitor.
229    o fix bug in timeAve (u,vZetatave in common block)
230    o no restoring terms under ice for pkg/seaice
231    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
232    o bug fix for pkg/seaice pickups
233    o change MNC call locations and add coordinate attributes
234    o mask vorticity at the corner ; affects global_ocean.cs output
235    o fix ini_curvilinear_grid ; test CS experiments with mpi
236    o aim.5l_cs: modify sea-ice fraction input file ; update output
237    o exf: Adding simple range check routine for exf fields after read
238    
239    checkpoint52k_post
240    o removed top-level directory "diags"
241      - we migrated these functions to pkg/timeave a long time ago
242    o fixed bug introduced in pkg/monitor
243    o accuracy ctrlprec = 32 insuffient for gradient checks using
244      averaged fields (I/O via cost_averages)
245      -> use ctrl.h in active_file*.F to control I/O precision.
246    o paramter list of CALL ADTHE_MAIN_LOOP
247    o added initial do_the_model_io to ecco
248    o set all ...Freq to zero after cost_final
249      taveFreq, dumpFreq, pChkptFreq
250    o MAIN and ECCO differentiability restored
251    
252    checkpoint52j_post
253    o fix nchklev in tamc.h for global_ocean...
254    o Bringing flow and store directives up-to-date
255    o Really weird thing!
256      call do_the_model_io from the_main_loop with parameters
257      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
258      TAF places a faulty re-call of initialise_varia
259      after cost_final call which should not be there!
260    checkpoint52j_pre
261    
262    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
263      error messages
264    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
265    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
266      debug output
267    o modfied mdsio_writefield.F to handle non-global files under exch2
268    o update AIM Cubed-Sphere exp (aim.5l_cs):
269      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
270    o update AIM Equatorial Channel exp:
271      use standard aim_v23 pkg and change the SST fields to be more realistic.
272    o globalFile now works with exch2
273    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
274      mon_vort3.F to make exch2 friendly with >1 tile per cube face
275    o limit timeave output for hi-res integrations
276    
277    checkpoint52i_post
278    o removed CPP_EEOPTIONS.h from verification/*/code
279    o updated the tiling for global_ocean_pressure
280    checkpoint52i_pre
281    
282    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
283      the old pkg/aim).
284    
285    checkpoint52h_pre
286    o shortened offending lines in exch2_send_rx?.template
287    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
288    o genmake2: add build & execute test for NetCDF code
289    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
290      old grid files, moved CPP_EEMACROS.h to pkg/exch2
291    o added useSingleCPUIO flag to monitor.F and mon_out.F
292    o added temporary hack for sea-ice dynamics on the cube:
293      metric terms are ignored and it is assumed that
294      there is no sea-ice on cube faces 1, 2, 4, and 5.
295    
296    checkpoint52f_post
297    o added exch2 cube routines to pkg/exch2
298    o modified hs94.cs-32x32x5 to use it
299    o added new grid files to hs94.cs-32x32x5
300    checkpoint52f_pre
301    
302    checkpoint52e_post
303    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
304      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
305    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
306      to work with implicit vertical advection and AB ;
307    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
308    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
309     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
310    checkpoint52e_pre
311    
312    o fix bug in impldiff when Nr=1 or Nr=2.
313    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
314    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
315    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
316      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
317    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
318    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
319    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
320    
321    checkpoint52d_post
322    o re-tiled many expts to allow comparison in multi-processor mode
323      - updated output accordingly
324      - changed hs94.128x64x5 to use intial T from file rather than use the
325        random number generator
326    o add infrastructure in model routines for fizhi and gridalt packages
327    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
328    o changes to permit hi-res, cubed-sphere, configuration
329      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
330      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
331      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
332        of surface winds for the cube
333      (A verification experiment, based on global_ocean.cs32x15, but with
334       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
335       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
336       complete with example surface forcing files and matlab scripts to look
337       at the output and compare it with that of global_ocean.cs32x15.)
338    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
339       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
340       to conform to the common rule.
341    o check-in the first version of the coupler + interfaces for multi-components
342       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
343       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
344       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
345       - ocean and atmos. share the same horizontal grid (no interpolation).
346       - exchanges between component and coupler is done in forward_step
347    o new verification experiment, cpl_aim+ocn:
348       coupled ocean - AIM atmosphere on cs32 grid.
349    
350    checkpoint52d_pre
351    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
352    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
353    
354    checkpoint52c_post
355    o Fixing OPTIONS files for use of exf:
356      - ALLOW_ECCO not needed
357      - ECCO_CPPOPTIONS.h should not be included from
358        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
359        as has been the case in the past
360      - All cal/exf related options are currently set in
361        single header file. Should remain so until we
362        agree on a consistent new policy.
363    o Removed all CPP options for cal package.
364      cal has no more CPP options.
365    o modified STOREs in GAD_ADVECTION
366    o corrected key comp. for passkey
367    
368    checkpoint52b_post
369    o new version: "thsice" of thermodynamic sea-ice pkg:
370     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
371     - modify fluxes but do not change theta directly;
372     - light cleaning of bulk_force pkg (still needed with thsice).
373     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
374       + output_thsice.txt to test thsice & bulk_force pkgs.
375    o put back grid & coriolis monitor output.
376    checkpoint52b_pre
377    
378    o call "do_the_model_io" at the beginning (=> dump initial state)
379    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
380    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
381      (need info on NUMBER_OF_PTRACERS)
382    o missing PTRACERS headers in some routines
383    o default tamc.h in pkg/autodiff supposed to crash
384      to ensure proper customization
385    
386    checkpoint52a_post
387    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
388      - moved surfaceTendencyTice from pkg/seaice to main code
389      - subroutine FREEZE_SURFACE now limits only surface temperature
390        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
391        => new output.txt for global_ocean.cs32x15 & global_with_exf
392      - keep the old version of FREEZE for backward compatibility;
393        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
394      - corresponding modifs for TAF directives
395    o added surface flux output variables to TIMEAVE_STATVARS
396    o time-averaged output for pkg/ptracers
397    o fix problem with ECCO-related divided adjoint
398      snapshot file was missing some ad-variables,
399      but no warning issued by TAF
400    
401    checkpoint52a_pre
402    o some bug fixes for #undef REAL4_IS_SLOW
403    
404    checkpoint52 = ecco_c52_e35
405    o after testing adjoints of checkpoint51u_post
406    
407    checkpoint51u_post
408    o this is the post-merge tag of the ecco-branch
409      (needs another clean checkout and re-testing)
410    o various natl_box_adjoint configs and results
411      but no input fields
412    o obcs adjoint not yet merged!
413    o adding ECCO global 1x1 and 2x2 degree configs
414    o updated/extended some store directives for seaice
415    o pkg/ecco now containes ecco-specific part of cost function
416    o top level routines the_main_loop, forward_step
417      supersede those in model/src/
418      previous input data.cost now in data.ecco
419      (new namelist ecco_cost_nml)
420    o in ctrl/ cleaned some cross-dependencies and updated CPP options
421    
422    checkpoint51t_post
423    o this is the pre-merge tag of the ecco-branch
424    
425    checkpoint51s_post
426    o cleanup: removed various obsolete #define-s
427    o pkg/grdchk
428      - renamed 'ph-grd 3' to 'grad-res'
429      - merged from ecco-branch
430        (remaining bug fixes for obcs gradient checks)
431      - additional high-precision output for testreport
432        (grep for 'precision_grdchk_result')
433    
434    checkpoint51r_post
435    o cleaned up or removed CPP_OPTIONS.h files
436    o updated results for some of the tests to reflect the new
437      optfiles (-ieee: -O0 instead of -O3)
438    
439    checkpoint51q_post
440    o cd_code:
441      - moved cd_scheme.F -> cd_code_scheme.F
442      - separate read_checkpoint from cd_code_ini_vars.F
443      - separated cd_code part from write_checkpoint
444      - updated AD_SOURCE, generated .flow
445      - added CD_CODE_VARS.h to the_main_loop
446      - Moving cd_code specific store dir.s to pkg/cd_code
447    o ctrl package totally restructured
448      - pack/unpack now optional and decoupled from
449        xx_/adxx_ I/O
450      - ctrl_pack/unpack cleaned
451        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
452      - confined inclusion of AD_CONFIG.h to where necessary.
453    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
454    
455    checkpoint51p_post
456    o create initial cd_code package
457      - WARNING: the initialization of fields within packages
458        is broken because INI_FIELDS (where READ_CHECKPOINT is
459        called) is called *before* PACKAGES_INIT_VARIABLES.
460        This seems to be backwards since
461        1) its important to initially zero the entire field including
462           the "halo" region
463        2) zeroing needs to be done *before* reading pickup info
464           and the pickup call might or might not happen in any
465           particular run
466      - this needs an overhaul for R2
467    o cleanup verification/*/code/GMREDI_OPTIONS.h
468    o cleanup testreport
469    
470    checkpoint51o_post
471    o bringing AD-related verif's up to date with genmake2
472      - carbon/
473      - global_ocean.90x40x15/
474      - hs.94.1x64x5/
475      - (front_relax/ )
476    o (more) consistent directory structure for AD-related verif.'s
477    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
478    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
479    o bug fix in find_alpha.F for MDJWF:
480      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
481        change rho -> rho-rhoConst
482      - replace call find_rho to find_rhonum
483    o initialisation of rFlx extended to full array (required by TAF)
484      and shifted to thermodynamics
485    o removed PTRACERS.h in ptracers routine
486    o added surfacetendencyPtr to S/R parameter list pracers_forcing
487    o Correcting initialisations for fVerU, fVerV.
488    o helping TAF to recognize dependency on kUp for
489      fVerU, fVerV
490    o Replacing delZ by delR in pkg/ctrl/
491    checkpoint51o_pre
492    
493    o undid all of cp51 pending some cleanups and discussion
494    o added the [#include "AD_CONFIG.h"] statement to all files that need
495       it for adjoint/tl #defines
496     o re-worked the build logic in genmake2 to support AD_CONFIG.h
497     o removed tools/genmake since it no longer works
498    
499    checkpoint51n_post
500    o modifications to make FREEZE flux visible to pkg/kpp
501      - moved surfaceTendencyTice from pkg/seaice to main code
502      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
503      - subroutine FREEZE now limits only surface temperature
504        (this means new output.txt for global_ocean.90x40x15,
505         global_ocean.cs32x15, and global_with_exf)
506    o added surface flux output variables to TIMEAVE_STATVARS
507    
508    checkpoint51n_pre
509    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
510    o added [#include "AD_CONFIG.h"] to all files that use the following
511      defines:
512      - ALLOW_ADJOINT_RUN
513      - ALLOW_TANGENTLINEAR_RUN
514      - ALLOW_ECCO_OPTIMIZATION
515    
516    checkpoint51m_post
517    o incorporating changes to get TAMC/TAF working in genmake2
518      - added new TAMC/TAF targets to the Makefile
519      - various cleanups related to package handling
520      - these changes should have no impact on the forward model
521    
522    checkpoint51l_post
523    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
524     - faster algorithm for cal_addtime.F
525     - higher precision arithmetic, where needed
526     - pkg/exf *startdate variables changed from calendar date to
527       model integration time
528    
529    checkpoint51l_pre
530    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
531    o enable to apply restoring on S & T only in a latitude band.
532    o update output (external_forcing_surf modif. change truncation errors)
533       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
534    
535    checkpoint51k_post
536    o change default to: useNHMTerms=.FALSE.
537     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
538       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
539     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
540        exp1, ideal_2D_oce
541     - change data file of oceanic exp (leave the results unchanged for now)
542       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
543    o set gravitySign automatically according to the vertical coordinate used
544      (and change sign: back to "logical" value: +1 when R increases downward)
545    o added an include barrier to the default CPP_OPTIONS.h and
546      removed the #include "PACKAGES_CONFIG.h" from it
547    o fix a bug in mom_fluxform (from chk51j_post)
548    
549    checkpoint51j_post
550    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
551    o adjusted some flow directives (dynamics, thermodynamics)
552    o added cubed-sphere case to test cost function
553    o heckpoint_lev?_directives.h now include
554      pkg-specific directives, whenever those are enabled.
555    o Moving pkg-specific flow directives to corresponding pkg
556      Moving pkg-specific differentiation list to corresponding pkg
557      Moving pkg-specific checkpoint-lev storing to corresponding pkg
558      ---> conventions are
559           - pkg_ad.flow
560           - pkg_ad_diff.list
561           - pkg_ad_check_lev?_dir.h
562    
563    checkpoint51i_post
564    o merge of the branch-genmake2
565      - knowingly breaks the older genmake
566      - automatic generation of all ALLOW_${PKG_NAME} defines
567      - new testreport supersedes older testscript
568    o large number of package inclusion and header cleanups
569    checkpoint51i_pre
570    
571    o new output for adjoin of global ocean vector invariant
572    o fix for checkpoint of thermodynamic seaice and bulk_force
573    o Steph gchem various cleanups
574    
575    checkpoint 51h_pre
576    o fixed some single quotes
577    o modify gchem pkg to be more versatile
578    o modifications to clean up dic pkg
579    o add pkg/cfc
580    
581    checkpoint51g_post
582    o provide links for ARPACK and ADM*TLM
583    o start removing verification/vero/
584    o update AD-related stuff
585      (in particular some IF-statements in model/src/ routines)
586    o adding to verification/global_ocean.90x40x15/ adjoint of
587      vector invariant setup
588    
589    checkpoint51f_post
590    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
591    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
592      of tracer Green's fucntions for ocean inversion project.
593    
594    checkpoint51f_pre
595    o Added on-the-fly spatial interpolation capability
596        "USE_EXF_INTERPOLATION" to pkg/exf.
597      - This is a temporary Cartesian-grid hack until
598        the super-duper ESMF coupler becomes available.
599      - See verification/global_with_exf/README for usage example.
600      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
601        flags and modified pkg/seaice accordingly.
602    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
603        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
604        non-local transport term.
605    
606    checkpoint51e_post
607    o pkg/mom_vecinv:
608      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
609      - add time-ave diagnostic of vorticity advection.
610    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
611    o atmospheric geopotential: - include water vapor effect;
612                                - use p^kappa in p* scaling.
613    o land pkg: read initial state from files.
614    o AIM : add stratospheric drag in the upper level
615    
616    checkpoint51d_post
617    o change function ILNBLNK (=> last non-blank char.) to return zero
618      (instead of the string length) when the string. char is empty
619    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
620    o modif's to restore TAMC compatibility
621      - avoid "_d" constructs in PARAMETER declarations
622      - avoid interrupting lines by comment lines
623    o Use cluster local disks for purely local I/O
624      vs. globally visible disks needed for ctrl stuff
625      (merged from ecco-branch)
626      - new active_file_loc... and mdsio_..._loc routines
627      - affected packages: autodiff, ctrl, grdchk, mdsio
628    
629    checkpoint51c_post
630    o introducing integer flag debugLevel
631      - debLevZero: suppress all output
632      - debLevA: standard
633      - debLevB: equivalent to current debugMode=.TRUE.
634    o introducing pathname variable mdsioLocalDir for mdsio
635      that can be specified at runtime
636      (relevant for cluster I/O to local disk)
637    `
638    >>>checkpoint51b_post
639    adjoint of ptracers
640    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
641    o extended state in checkpoint_lev?, etc.
642    o alternative ctrl/cost with tr1 or ptracer
643    o new comlev1_bibj_ptracers
644    o new ptracers.flow
645    o made ptracers_forcing same as external_forcing_s
646    o added verification for adjoint with ptracers
647      - adm. grdchk fail so far
648      - tlm. grdchk OK
649      - checked tapelev/comlev recomputations: OK
650    <<<checkpoint51b_pre
651    
652    checkpoint51a_post
653    o added code for biogeochemistry package
654      - new pkgs: dic, gchem
655      - new subroutine in ptracers
656    o modify code for biogeo packages
657      - in model/src and pkg/ptracers
658    
659    checkpoint51
660    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
661      - autodiff, ctrl, exf, grdchk, seaice
662      kept separate packages
663      - cost, ecco, obcs
664    o updating verification/internal_wave, verification/lab_sea
665      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
666    
667    checkpoint50i_post
668    o Preparing next differentiable checkpoint and sync
669      of MAIN vs. ecco-branch
670      - 1st step: this one is differentiable
671      - 2nd step: next(! not this) checkpoint will have updated packages
672                  from ecco-branch)
673    
674    checkpoint50h_post
675    o new package "land": provide surface BC for AIM.
676    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
677    o AIM: use true log-P extrapolation for near surface temp (= as in
678        F.Molteni paper) ; update aim.5l_cs output.
679    o New variable in PARM03 for more flexible pickups
680    o somewhat cleaned package initialisation sequence for
681      ctrl/ cost/ ecco/ in packages_... routines
682    
683    checkpoint50g_post
684    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
685      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
686      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
687        made the default because of faster convergence than ADI
688    
689    checkpoint50f_post
690    o exf totally restructured
691      - replaced all exf_set_ routines by one generic exf_set_gen.F
692        and made sure it's still differentiable
693      - split exf_getffields.F into new exf_bulkformulae.F
694      - exf_inscal_/exf_outscal_ suffixes consistent with field names
695      - updated adjoint/makefile and relevant verif. accordingly
696    
697    checkpoint50f_pre
698     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
699          + change Evap over land. (update aim.5l_cs output)
700     o added missing .cvsignores and made uniform across expts
701     o changed configuration of tidal_basin_2d expt
702     o added pkg/debug functions for tracing code in fatal crashes
703     o tidied pkg/monitor to use MONITOR_OPTIONS.h
704     o new fn in pkg/monitor to stop model if solution grows too big
705     o removed lots of single quotes from comments
706    
707    checkpoint50e_post
708    o make KPP work with PTRACERS
709     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
710       nearly a copy of kpp_transport_s
711     - there is no analogue to SurfaceTendencyS, so I have to use
712       gPtr(of the surface layer) instead
713    o add a new platform SunFire+mpi (SunFire 15000) to genmake
714    checkpoint50e_pre
715    
716    checkpoint50d_post
717    o change kpp output from multiple-record state files to single-record state
718      files analogous to write_state.F
719    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
720      analogous to the cg2d-related output.
721    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
722      so that writing to internal file fn (with length 512) fails.
723    checkpoint50d_pre
724    
725    checkpoint50c_post
726    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
727    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
728    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
729    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
730    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
731    
732    checkpoint50c_pre
733    Merging from release1_p13:
734    o bug fix for pkg/seaice dynamic solver
735    o Added SEAICE_initialHEFF to pkg/seaice
736    
737    checkpoint50b_post
738    o store u*,v* in gU,V instead of in guNm1,gvNm1
739    o in order to put the momForcing out of the Adams-Bashforth:
740      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
741      to timestep.F
742    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
743    o re-generate output for highly sensitive test-exp:
744       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
745    
746    checkpoint50b_pre
747    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
748    o corrected CPP option mismatch in exf_Bulk... functions for case
749      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
750    
751    checkpoint50a_post
752    o Bug fix for merging between c50 and KPP.
753      ikey was passed from thermodynamics to kpp_calc via
754      common block rather than being recomputed in kpp_calc,
755      in contradiction with new key itdkey.
756      New key ikppkey created, and tamc.h headers updated.
757    
758    checkpoint50
759    - 2nd step of merge with ecco-branch:
760      merge changes in ecco-branch back into main trunk
761    - bug fix in find_alpha
762    - more storing in gmredi_calc_tensor.F, kpp_routines.F
763    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
764    - merged some sliced AD support routines
765    
766    checkpoint49
767    merged from ecco-branch:
768    o exf:
769      - Enable initialisation of forcing fields to constant
770        (runtime) values.
771      - in exf_getffields.F
772        Reduce i-/j-loop to interior domain, discarding overlaps.
773        That also fixes wrong TAF-key computations for key_1, key_2
774        with bulf formulae.
775      - exf_init.F modify #ifdef for exf_init_evap
776      - exf_getffieldrec.F, ctrl_getrec.F
777        The following INT-usages are not safe:
778          fldsecs  = int(fldsecs/fldperiod)*fldperiod
779          fldcount = int(fldsecs/fldperiod) + 1
780        and were modified.
781    o autodiff: checkpoint_lev...
782      - updated storing for bulk formulae (some arrays were missing)
783      - added state for seaice package
784      - synchronized with main branch
785    o DIVA:
786      Modif.s in
787      - the_main_loop.F
788      - the_model_main.F
789      and added cost_final_restore.F cost_final_store.F
790      o With these changes, it is possible to fully separate
791        the first forward run to compute the cost function (mdthe_main_loop)
792        and adjoint runs over individual DIVA intervals (adthe_main_loop)
793        into separate model executions.
794        This enables better tuning of DIVA to given queue sizes.
795      o Loss of cost function value in consecutive DIVA runs is
796        fixed by storing to 'costfinal' file.
797      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
798        beginning/end of adjoint integration is accounted for.
799      The current changes apply to TAF-1.4.26.
800      TAF has one remaining bug, requiring one manual change
801      (see MITgcm manual).
802    o cal: synchronized between MAIN and ecco-branch
803    
804    checkpoint48i_post
805    o Changes to restore differentiability of code w.r.t. previous tag
806      (mostly adding new routines to make list and replacing
807      pressure by totPhiHyd).
808    o Updated and merged grdchk package
809      - has both ADM and TLM checks
810      - works for single- and multi-proc.
811      - output cleaned
812      - worked successfully for parallel DIVA
813    o genmake:
814      - Adding -platform=SP4
815      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
816    o Modif. for DIVA:
817      ctrl_unpack should not be called in intermediate DIVA interval.
818      (similar thing would apply for active files such as
819      tbar, sbar, psbar, which should not be reinitialised;
820      only relevant for ecco-branch)
821    
822    checkpoint48h_post
823    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
824    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
825    o Added SEAICE_initialHEFF to pkg/seaice
826    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
827    
828    checkpoint48g_post
829    --- EOS:
830    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
831      store total Potential in totPhyHyd for diagnostics & EOS.
832    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
833    --- Pressure/geopotential gradient:
834    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
835    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
836      ( changes results of global_ocean_pressure )
837    o NLFS + z-coord.: add eta*Rho' contribution.
838    o accurate phiHyd when using interface-W at the middle between 2 centers
839     ( changes results of ideal_2D_oce )
840    o includes r* 2nd term in potential gradient.
841    
842    checkpoint48f_post
843    Merging from release1_p12:
844    o Modifications for using pkg/exf with pkg/seaice
845      - improved description of the various forcing configurations
846      - added basic radiation bulk formulae to pkg/exf
847      - units/sign fix for evap computation in exf_getffields.F
848      - updated verification/global_with_exf/results/output.txt
849    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
850      (SBO) core products, including oceanic mass, center-of-mass,
851      angular, and bottom pressure (see pkg/sbo/README.sbo).
852    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
853      to avoid negative values in shallow regions.
854      - updated verification/natl_box/results/output.txt
855      - updated verification/lab_sea/results/output.txt
856    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
857    o Added useSingleCpuIO option (see PARAMS.h).
858    o Updated useSingleCpuIO option in mdsio_writefield.F to
859      work with multi-field files, e.g., for single-file pickup.
860    o pkg/seaice:
861      - bug fix in growth.F: QNET for no shortwave case
862      - added HeffFile for specifying initial sea-ice thickness
863      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
864    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
865      kpp_transport_t.F, forward_step.F, and the_main_loop.F
866    o pkg/seaice:
867      - adjoint-friendly modifications
868      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
869    
870    checkpoint48e_post
871    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
872    o dynamics: change definition of computational domain & adapt mom_fluxform
873      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
874    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
875        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
876        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
877        global_ocean.90x40x15 global_with_exf global_ocean_pressure
878        inverted_barometer solid-body.cs-32x32x1
879      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
880    
881    checkpoint48d_post
882    o in preparation for r*:
883     a) use pre-computed gradient of hydrostatic potential:
884        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
885     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
886        => affects results of glob_oce_pressure (different truncation error)  
887      update output.txt of ideal_2D_oce & global_ocean_pressure
888    
889    checkpoint48d_pre
890    o in preparation for r*:
891      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
892      pass the 2 comp. of the grad. as arguments to momentum S/R.
893      but for the moment, only used if it does not change the results.
894    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
895    
896    checkpoint48c_post
897    Modifications in treatment of initial flux forcing controls
898    to avoid extra storing of flux fields.
899    
900    checkpoint48c_pre
901    o Added tidal_basin_2d experiment (currently 1D!)
902    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
903    
904    checkpoint48b_post
905    o r* coordinate added in #ifdef NONLIN_FRSURF block.
906     (modification to pressure gradient not yet implemented)
907    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
908      (for U & V) that are used for vertical advection of momentum.
909    
910    checkpoint48a_post
911    o In preparation for r*, use temp. array to compute vertical transport
912       in flux-form momentum pkg. => change results of few test-exp.
913      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
914                        lab_sea, natl_box & plume_on_slope
915    
916    checkpoint48
917    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
918    
919    checkpoint47j_post
920    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
921    o moved adexch from forward_step to addummy_in_stepping
922    o added exch in ctrl_map_...
923    o aveFreq.=0. at end of cost_final to avoid overwrite in
924      reverse checkpointing loop
925    o Yet more changes in gmredi:
926      * adgmredi_calc_tensor
927        avoiding all recomputation of gmredi_slope_limit
928      * adgmredi_x/y/rtransport
929        added flag for excessive storing to avoid recomp. of
930        u/v/rtans, dTdx/y/z
931        -> this is not really necessary and very memory-consuming
932      * adgmredi_slope_psi:
933        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
934      * gmredi_slope_limit
935        re-activated full calculation of taperfct for case 'ac02'
936    o updating verification/ adjoints of carbon, global_ocean.90x40x15
937    
938    checkpoint47i_post
939    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
940    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
941      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
942    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
943    o gmredi: fix few bugs.
944    
945    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
946    This will be a good checkpoint to plug into the ecco-branch.
947    o few modif.'s to get latest version adjointed
948      (mainly kick out code in ini_linear_phisurf)
949    o modif's to run adjoint with exactConserv
950    o case GM_BOLUS_ADVEC should be cleaned
951      S/R gmredi_slope_psi should be cleaned
952    o verification/carbon now has exactConserv=.TRUE.
953    
954    checkpoint47g_post
955    o time-average AIM output: becomes independent from statvars time-average
956      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
957    o After TAF bug fix:
958      Tested adjoint of gmredi package.
959      Tests were done with checkpoint47 rather than with latest
960      checkpoint47f_post since the latter is broken for the adjoint
961      verification/carbon/ contains both ADM and TLM gradient checks.
962    Here they are, before they get changed/lost/stolen.
963    Mostly modif.'s to fix numerical sensitivities.
964    Gradient checks OK for
965    - GM_taper_scheme:
966      * clipping
967      * ac02
968      * linear
969      * glw91
970      * dm95
971      * ldd97
972    - GMREDI_OPTIONS:
973      * GM_VISBECK_VARIABLE_K
974      * GM_NON_UNITY_DIAGONAL
975      * GM_EXTRA_DIAGONAL
976      * GM_BOLUS_ADVEC
977    in conjunction with data.gmredi parameters to be checked in
978    in a few minutes under verification/carbon/code/
979    
980    checkpoint47f_post
981    Merging from release1_p10:
982    o modifications for using pkg/exf with pkg/seaice
983      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
984        and SEAICE_EXTERNAL_FLUXES
985      - pkg/exf CPP options EXF_READ_EVAP and
986        EXF_NO_BULK_COMPUTATIONS
987      - usage examples are Experiments 8 and 9 in
988        verification/lab_sea/README
989      - verification/lab_sea default experiment now uses
990        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
991    
992    checkpoint47e_post
993    o created a tag prior to creating a branch
994    
995    checkpoint47d_post
996    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
997      at the bottom boundary had an erroneous half slip boundary condition
998    o added bottom drag and no slip boundary condition capabilities to
999      oceanic pressure coordinates code
1000    o added new verification experiment global_ocean_pressure, this experiment is
1001      also described in the tutorial section of the manual
1002    checkpoint47d_pre
1003    
1004    checkpoint47c_post
1005    o Added a verification experiment for a global cubed-sphere ocean run
1006      -  verification/global_ocean.cubed32x32x30
1007      -  uses pkg/therm_seaice and pkg/bulk_forcing
1008    
1009    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1010    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1011      when using P-coordinate; only implemented for atmospheric config.
1012    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1013      NOTES: requires option NONLIN_FRSURF to be "#define".
1014    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1015    
1016    checkpoint47b_post
1017    Merging from release1_p9:
1018    o pkg/seaice
1019      - removed GOTO's and added taf directives
1020      - double precision constants to reduce the g77 (Linux)
1021        to F77 (SGI) differences reported in release1_p8
1022    o tools/genmake
1023      - added SGI options
1024    o verification/testscript
1025      - updated to that of checkpoint47a_post
1026    o verification/global_ocean.90x40x15/input/eedata
1027      - modified for SGI f77 compatibility
1028    o verification/lab_sea
1029      - added description of sea-ice model
1030      - added missing matlab routines
1031      - added test of thermodynamics parallelization
1032    
1033    checkpoint47a_post
1034    o new pkg: aim_v23
1035     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1036       for now, keep the same surface forcing as before.
1037     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1038     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1039     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1040    o add diagnostic of surface correction term in monitor output
1041    
1042    o bulk_force and therm_seaice
1043    - Two packages:  bulk_force (Bulk forcing)
1044      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1045    - Earlier integration from Stephaine Dutkiewicz
1046      and Patrick Heimbach.
1047    - Two ifdef statements for compile time,
1048       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1049    
1050    checkpoint47
1051    differentiable version of checkpoint46n_post
1052    o bug fix in quasihydrostaticterms
1053    o * "clean" adjoint code (in terms of extensive recomputations)
1054        can now be obtained for all GMREDI options (i.e. for
1055        - GM_VISBECK_VARIABLE_K
1056        - GM_NON_UNITY_DIAGONAL
1057        - GM_EXTRA_DIAGONAL
1058        - GM_BOLUS_ADVEC )
1059      * However, wrong gradient check problem remains unsolved.
1060      * New CPP options have been introduced for different
1061        tapering schemes
1062    o external_fields_load now part of differentiation list
1063    o pressure needs multiple storing;
1064      would be nice to have store_pressure at beginning or
1065      end of forward_step, e.g. by having phiHyd global (5-dim.)
1066      (NB: pressure is needed for certain cases in find_rho,
1067      which is also invoked through convective_adjustment).
1068    o recomputations in find_rho for cases
1069     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1070    o #define ATMOSPHERIC_LOADING should be differentiable
1071    o ini_forcing shifted to begining of initialise_varia
1072    o Incorporating QNVS line search routines into MITgcm
1073      (this is separate code, and therefore not under pkg)
1074      lsopt/, optim/
1075    o Updated verification/carbon/
1076      - #define GM_VISBECK_VARIABLE_K
1077      - GM_taper_scheme    = 'ldd97'    
1078    
1079    checkpoint46n_post
1080    Merging from release1_p8:
1081    o verification/natl_box:
1082      updating new external_fields_load routine
1083    o New package: pkg/seaice
1084      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1085      The sea-ice code is based on Hibler (1979-1980).
1086      Two sea-ice dynamic solvers, ADI and LSR, are included.
1087      In addition to computing prognostic sea-ice variables and diagnosing
1088      the forcing/external data fields that drive the ocean model,
1089      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1090      The implied surface heat flux is then stored in variable
1091      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1092      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1093      non-local transport term.  Because this call precedes model
1094      thermodynamics, temperature under sea-ice may not be "exactly" at
1095      the freezing point by the time theta is dumped or time-averaged.
1096      N.B.: fairly large differences in accuracy occur across
1097            different platforms/compilers; comparison between
1098            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1099            generated output gives:
1100       T           S           U           V
1101      C D M    c        m  s        m  s        m  s        m  s
1102      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1103      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1104      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1105    
1106      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1107    o GAD:
1108      - generated new common blocks to account for call of
1109        same gad routines with differing traceridentities
1110        (needed to modify tracerIdentity indices in GAD.h)
1111      - generated separate common blocks for case useCubedSphereExchange
1112        (Department of Futurology)
1113      - parameter lists to gmredi_?transport: added tracerIdentity
1114      - added new key indices to tamc.h
1115    o external_fields_load:
1116      - added this routine to TAF list
1117      - needed to make some common blocks global and additional storing
1118        along the same lines as exf package (checkpoint_lev?_directives.h)
1119    o exf:
1120      updated external forcing package
1121      - bug fixes carried over from ecco-branch
1122        (missing OBCS_OPTIONS.h in two routines)
1123      - enable easy to use "no forcing".
1124      - added exf I/O for atmospheric loading
1125      - added exf I/O for runoff data
1126      - transfered scaling between exf <-> MITgcm to exf namelist
1127    o Adding new verification experiment global_with_exf.
1128      This verification experiment is almost identical to the
1129      global_ocean.90x40x15 experiment, except that it uses
1130      the exf (and cal) package instead of the
1131      external_fields_load routine (cf README file).
1132    
1133    checkpoint46m_post
1134    o modified testscript to return -- when there are no lines of "%MON" output
1135    o added new flag "quasiHydrostatic" for QH mode
1136      and new routine quasihydrostaticterms()
1137    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1138      New routine: mom_u_coriolis_nh()
1139    o fixed sign of non-hydrostatic metric terms in u and v equations.
1140      Depend on correct sign of gravitySign.
1141    o added work.pc* to .cvsignore in aim directories using ifc
1142    o introduced flag for controllin non-hydrostatic metric terms
1143    o removed gravitySign from PARM04
1144    o switched to g77/ifc from pgf77 in aim experiments
1145    
1146    checkpoint46l_post
1147    o made convective adjustment work with pressure coordinates:
1148     - changed the direction of k-loop in convective_adjustment.F for the
1149       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1150     - adjusted the reference pressure k-index in convective_adjustment.F
1151     - adjusted the convection condition in convect.F (in analogy to
1152       calc_ivdc.F)
1153     - convective_adjustment no longer computes anything on the halos
1154     - removed the warnings about negative salinity from find_rho.F and
1155       find_alpha.F; instead the new routine look_for_neg_salinity, called
1156       at the beginning of find_rho, find_alpha, and find_beta, does a
1157       check of the entire slice, if CPP-option
1158       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1159    checkpoint46l_pre
1160    
1161    checkpoint46k_post
1162    o fixed the verification/global_ocean.90x40x15 experiment:
1163     - new bathymetry (the world according to A., JMC, and M.)
1164     - new initial fields and forcing fields (*.bin files)
1165     - new POLY3.COEFFS (for the next release one should switch to a full
1166       equation of state: JMD95P or MDJWF)
1167     - fixed several errors and redundancies in the data file
1168     - experiment uses looped cells
1169     - added matlab directory with diagnostic scripts for plotting of output
1170    
1171    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1172     - read AIM physics parameters from a file (data.aimphys)
1173     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1174    
1175    checkpoint46j_post
1176    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1177    o move wVel computation at the end of the time step, in S/R integr_continuity
1178    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1179    o update timeave pkg for wVel diagnostic.
1180    checkpoint46j_pre
1181    
1182    checkpoint46i_post
1183    o Clean up AIM package (and keep the results unchanged):
1184      include CPP_OPTION and use IMPLICT NONE in all routines ;
1185      declare all the variables _RL ; use _d 0 for all numerical constants.
1186      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1187    
1188    checkpoint46h_post
1189    o cleaned up the use of rhoNil and rhoConst.
1190      - rhoNil should only appear in the LINEAR equation of state, everywhere
1191        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1192        and the dynamical equations are all divided by rhoConst
1193    o introduced new parameter rhoConstFresh, a reference density of fresh
1194      water, to remove the fresh water flux's dependence on rhoNil. The default
1195      value is 999.8 kg/m^3
1196    o cleanup up external_forcing.F and external_forcing_surf.F
1197      - can now be used by both OCEANIC and OCEANICP
1198    checkpoint46h_pre
1199    
1200     Added code to convert surface volume flux (fresh water) into
1201     a mass flux when using P coordinates in the ocean (OCEANICP).
1202     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1203    
1204    checkpoint46g_post
1205    o Include a new diagnostic variable phiHydLow for the ocean model
1206      - in z-coordinates, it is the bottom pressure anomaly
1207      - in p-coordinates, it is the sea surface elevation
1208      - in both cases, these variable have global drift, reflecting the mass
1209        drift in z-coordinates and the volume drift in p-coordinates
1210      - included time averaging for phiHydLow, be aware of the drift!
1211    o depth-dependent computation of Bo_surf for pressure coordinates
1212      in the ocean (buoyancyRelation='OCEANICP')
1213      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1214        Theta, Salinity, and Pressure in the parameter list. This routine is
1215        presently contained in find_rho.F. This routine does not give the
1216        correct density for 'POLY3', which would be a z-dependent reference
1217        density.
1218    o cleaned up find_rho
1219      - removed obsolete 'eqn' from the parameter list.
1220    o added two new verification experiments: gop and goz
1221      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1222    checkpoint46g_pre
1223    
1224    checkpoint46f_post
1225    o Enable tangent linear (forward mode) gradient checks:
1226      - extended active file handling to g_... files
1227      - added TANGENT_SIMULATION to theSimulationMode
1228      - extended grdchk package accordingly
1229    o added tangent linear setup in verification/carbon/code_ftl
1230    o added adjoint setup in verification/front_relax/code_ad
1231    
1232    checkpoint46e_post
1233    o Added new equation of state -> MDJWF
1234      - EOS of McDougall et al., 2002, JAOT, submitted
1235      - caveat: the equation of state is only valid for a smaller (more
1236        realistic?) range of values than JMD95P/Z and UNESCO
1237      - added masks to the calculation of pressure in store_pressure
1238      - added more check values for density in check_eos (ini_eos.F), some of
1239        the old check values are out of the range of the MDJWF-eos, so don't
1240        expect perfect matches for those
1241    checkpoint46e_pre
1242    
1243    checkpoint46d_post
1244    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1245      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1246      case of pressure coordinates. eosType='JMD95Z' in
1247      combination with buoyancyRelation='OCEANICP' now causes an error.
1248    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1249      in find_alpha/beta.
1250    checkpoint46d_pre
1251    
1252    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1253      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1254    
1255    checkpoint46c_post
1256    o Changes necessary for ocean in p-coordinates
1257     -  Added new buoyancy relation = 'OCEANICP'
1258     -  Added new parameters = gravitySign (this used to be contained inside
1259        the factor dRdZ which I added when we first switched to R coordinates).
1260     X GM/Redi is not compatible (yet)
1261     X bottom drag and no-slip need to be debugged.
1262    checkpoint46c_pre
1263    
1264    checkpoint46b_post
1265    o Added new equation of state -> JMD95Z and JMD95P
1266      - EOS of Jackett and McDougall, 1995, JAOT
1267      - moved all EOS parameters into EOS.h
1268      - new routines ini_eos.F, store_pressure.F
1269    o Added UNESCO EOS, but not recommended because it requires
1270      in-situ temperature (see JMD95)
1271    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1272      unesco.f to be used with POLY3
1273    checkpoint46b_pre
1274    
1275    checkpoint46a_post
1276    o Added (atmospheric) pressure loading
1277      - new field in FFIELDS.h, etc...
1278      - new cpp flag ATMOSPHERIC_LOADING
1279    o Changed hFacC to _hFacC in calc_phi_hyd.F
1280    o Added SHORTWAVE_HEATING to some files for consistency
1281    checkpoint46a_pre
1282    
1283    checkpoint46
1284    further merges from release1_p5
1285    o new ctrl package
1286      - adopted from ECCO environment to enable optimization
1287      - added Eliassen Palm fluxes to controls
1288    o added Eliassen Palm flux controls to gradient check package
1289    o cost package
1290      - Compatible with new ctrl package
1291      - added Eliassen Palm cost hooks
1292      - modif's of existing cost functions
1293    o Adjoint-related bug fixes in kpp:
1294      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1295      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1296    o autodiff package
1297      - flow directives:
1298        + new for S/R do_the_model_io
1299        + enhanced for S/R checkpoint
1300        + new gmredi.flow
1301      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1302        disable adcommon.h/g_common.h by default.
1303      - fixed problem for adjoint of global_max
1304    o modified verification/carbon/
1305    o New setup for adjoint of global_ocean
1306    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1307    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1308    o incorporated hooks for sponge layer code (external_forcing.F)
1309    
1310    checkpoint45d_post
1311    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1312    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1313      (affects plume_on_slope "cg2d" output)
1314    o add new parameter deltaTfreesurf for free-surface time stepping
1315    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1316    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1317    o change phiMin in exp1 (to agree with documentation)
1318    o add new flags:
1319     - T,S forcing inside/outside Adams-Bashforth
1320     - turn off temp,salt advection and/or forcing
1321     - for each tracer, define internal flag for multiDimAdvection & A-B
1322    o monitor: change definition of KE to check conservation of Energy
1323    
1324    checkpoint45c_post
1325    o Removed f90 comments ("!")
1326    o Modified initialisations to enable exf package for MITgcm
1327      (without invoking ECCO_PACKAGE).
1328    o modifications to gradient check package (Martin Losch)
1329      - enable centered differences
1330      - modified format of standard output
1331    
1332    checkpoint45b_post
1333    o cleaned exchange calls in cg2d
1334    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1335    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1336      to configure barotropic setup (Martin Losch)
1337    o moved some initialisations within bi,bj loop in dynamics
1338      (TAF flow dependency)
1339    o in initialise_varia, moved call packages_init_variables
1340      before convective_adjustment_init
1341      (corresponding adjustment of TAF tape initialisation).
1342    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1343    
1344    checkpoint45a_post
1345    o compute Rho over the whole domain (extend iMin,jMin indices)
1346    o specific exchange for X-slice domain (case Ny=1)
1347    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1348    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1349    
1350    checkpoint44h_post = checkpoint45
1351    o Fix to restore differentiability:
1352      place at which packages_init_variables is called in
1353      initialise_varia is crucial for reverse control flow.
1354    o modifications in GMRedi to enable stable adjoint
1355      (corresponding modif's in thermodynamics, dynamics)
1356    o added missing hook for sponge layer code in external_forcing
1357    o modified test cost functions
1358    o storing in gad_advection (plus removal of write(0,*)!
1359    o missing headers TR1.h added in convective_adjustment routines
1360    o errorMessageUnit set non-equal zero in eeboot
1361      (conflict on some platforms, e.g. IBM SP3)
1362    o modified carbon verif.
1363    
1364    checkpoint44h_pre
1365    o vertical grid option: allow to put the Interface at the middle between
1366      2 cell-centers ; replace delZ in pkg/kpp by drF.
1367    o GM Advective form: Tracers are advected using the residual transport (=
1368      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1369    
1370    checkpoint44g_post
1371    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1372      results) ; ifdef missing in thermodynamics.F
1373    
1374    checkpoint44f_pre,checkpoint44f_post
1375    o added PTRACERS package
1376      This allows an arbitrary number of passive tracers to be integrated
1377      forward simultaneously with the dynamicaly model.
1378      + Implemented so far:
1379        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1380        - I/O and checkpointing
1381        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1382      + Not implemented so far:
1383        - KPP
1384        - OBCS
1385      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1386        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1387        line in data.pkg.
1388      + This package is disabled by default since it increases storage.
1389    
1390    
1391    o testscript: added -cleanup option
1392    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1393                 b) enable to filter 2D fields.
1394    
1395    checkpoint44e_pre,post
1396    o re-wrote convective adjustment to use pre-calculated weights
1397      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1398      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1399      Original calls to convect() still in place.
1400    
1401    chkpt44d_pre,post
1402    o added missing EXCLUDE_MONITOR flags
1403    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1404      (incompatible typ in MIN/MAX expressions caused problems
1405      on IBM SP3)
1406    o in genmake added variable MAKEDEPEND
1407      plus resetting for case SunOS
1408    o added timer_stats.c routine for IBM SP3
1409    o removed variables in dynamics
1410    !!! I forgot to create tag chkpt44d_pre !!!
1411    !!! But chkpt44d_pre = chkpt44c_post    !!!
1412    
1413    o real fresh water flux implemented with non-linear free-surface.
1414    
1415    chkpt44c_pre,post
1416    o few fix (mask in shap_s2, EmPmR in external_field_load,
1417      USE_NATURAL_BCS in solve_for_P);
1418    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1419    
1420    checkpoint44b_pre/_post
1421    o merge of relevant stuff from the ecco-branch:
1422      - genmake: removed $S64 overwrite for case SunOS
1423      - pkg/exf: update and corrections for field swapping and obcs
1424      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1425                  harmonized between ECCO and MITgcm
1426      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1427                      updated checkpointing_lev... lists for obcs
1428      - model/src: minor changes in forward_step, plot_field
1429                   added directive for divided adjoint in the_main_loop
1430      - pkg/mdsio: added mdsio_gl_slice
1431    
1432    o check parameters & config (chkpt44a_pre,post)
1433    o OBC and NonLin_FrSurf.
1434    
1435    checkpoint44
1436    o fix bug in mom_vi_del2uv
1437    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1438    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1439    o update AIM experiments (NCEP input files)
1440    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1441    o added some stuff for AD
1442    
1443    checkpoint43
1444    o added two new advection tests
1445    o added global 4x4 degree ocean test
1446    o added test of H&S94 with free surface on cube
1447    o some final mods for gradient check, adjoint,...
1448    
1449    checkpoint42
1450      Fixed AD-related problems:
1451    o Store directives up-to-date with re-arranged Adams-Bashforth
1452      (mainly thermodynamics.F)
1453    o New store directives for multi-dim. advection schemes
1454      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1455      * new common block and key passkey
1456      (mainly gad_advection.F)
1457    o Modified store directives for split of dynamics/thermodynamics
1458      for the case ALLOW_KPP
1459    o Cleaned argument list for timestep_tracer.F
1460    
1461    checkpoint41
1462    o re-formatted/added comments in prologues of key subroutines
1463      to work with protex
1464    
1465    checkpoint40
1466    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1467    o added FLT (floats) package from Arne along with demo. experiment
1468    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1469      implementation of forward-in-time forcing terms
1470    o more mods for non-linear free-surface including new variable
1471    o modified multi-dim method to work on cube
1472    o bug fix in KPP (from DM)
1473    
1474    checkpoint40pre9
1475    o added DST advection schemes
1476    o fix MPI bug on SGI's
1477    o modifications for non-linear free-surface
1478    o fixed conditionals for fixed flow/passive tracer only mode
1479    o added tension/strain form of stress tensor
1480    o changes to commenting of arguments for TAF/TAMC
1481    o added/updated many matlab scripts
1482    o added multi-dimensional advection method for tracers
1483      
1484    checkpoint40pre8
1485    o new package rw/
1486      Added method for dumping intermediate local arrays:
1487      mdsio_writetile - same as mdsio_writefield except works from inside
1488                        bi,bj loop
1489      mdsio_writelocal - same as mdsio_writetile except works for local
1490                         arrays
1491      write_local_r? - higher-level wrapper for mdsio_writelocal
1492      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1493      Example given at end of mom_vecinv.F that dumps some local arrays.
1494    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1495      control flux-form versus vector invariant code.
1496      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1497      or genmake -DISABLE ...
1498    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1499      (additional storing is now needed for case vecinv;
1500      currently nothing implemented to switch this storing off
1501      in case fluxform is used since no CPP flag available).
1502    
1503    checkpoint40pre7
1504    o bug fix in dynamics.F
1505      calc_viscosity called before k=1,Nr loop.
1506    o added some #ifdef's ALLOW_PASSIVE_TRACER
1507    o cleaned initialisations in ctrl_map_ini
1508      related to TAF
1509    
1510    checkpoint40pre6
1511    o split dynamics into thermodynamics & dynamics
1512    o corresponding split of calc_diffusivity into
1513      calc_diffusivity, calc_viscosity
1514      (kpp_calc_diff, kpp_calc_visc).
1515    o Added diffkr, kapgm to control variables
1516    o bug fix in gmredi_slope_limit for ldd97
1517    
1518    checkpoint40pre5
1519    o proper initialization of Adams-Bashforth time stepping
1520      + uses forward step for very first step of model (iter=0)
1521    o re-generated *all* output since almost all output is modified by this
1522      change (sorry but we've been putting this one off for about 2 years)
1523      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1524        *not* regenerated since they are already out of date and I don't
1525        want to create the impression that they are suddenly working.
1526    o removed KAP stuff for DEC's
1527    o modified/added many .cvsignore files in */code and */input
1528    o added new expt "solid-body.cs-32x32x1"
1529      + this uses an alternative form of ini_curvilinear_grid.F which
1530        is not necessarily any better than the current one...
1531    
1532    checkpoint40pre4
1533    o added re-initialisations of utrans,vtrans,rtrans in
1534      calc_common_factors which are crucial for TAF.
1535    o extended iMin,jMin range for calc_common_factors,
1536      calc_diffusivity
1537    o added option ALLOW_PASSIVE_TRACER
1538    o a few minor updates and fixes
1539    
1540    checkpoint40pre3
1541    o created calc_gtr1.F for gad package
1542    o split the_main_loop and re-introduced forward_step
1543    o some recomputations of nIter0 for TAMC
1544    
1545    checkpoint40pre2
1546    o Updated to latest branch of AJA, JMC
1547    o Added gradient check package
1548    o Added routines for passive tracer handling
1549    o Added carbon sequestration sensitivity experiment
1550    
1551    checkpoint39
1552     o Modifications and fixes to support TAMC
1553       (mainly missing or wrong directives)
1554     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1555       in addummy_in_stepping
1556     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1557     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1558     o Included following packages:
1559       cal: calendar
1560       exf: external forcing
1561       ecco: essential routines to control use of cal, exf
1562             (NB: this is not the full ECCO environment)
1563     o disabled some packages by default in genmake
1564    
1565    checkpoint38
1566     o see notes_c37_adj.txt
1567     o corrected wrong layer index in external_forcing_t
1568     o replaced the_main_loop/forward_step by the_main_loop
1569     o removed forceoutput from write_state
1570       (replaced criteria for initial/final state)
1571     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1572    
1573    checkpoint37
1574     o mdsio.F routine split and packaged in pkg/mdsio
1575       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1576        used unless genmake -disable=mdsio)
1577     o allow a more precise surface-geopotential gradient for the atmosphere
1578       taking into account the change in space of Alpha (=1/rho) at the surface.
1579     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1580       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1581     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1582       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1583       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1584     o Time-Average diagnostics defined as a pseudo package "timeave".
1585     o pickup files : old pickup (before c35) did not work with new code (c35
1586       and after) unless activating 2 commented lines in initialise-varia.
1587     o Non-Hydrostatic pickup file Pb fixed.
1588     o bug with Rigid-lid version (since c35) fixed.  
1589    
1590    checkpoint36
1591     o implement Crank-Nickelson barotropic time-stepping
1592     o recover Time-Average diagnostics
1593     o fix Pb in checkpoint (PR#19)
1594     o AIM become a standard package ; clean unused CPP_kees
1595    
1596    checkpoint35
1597     o subtantial rewrite of dynamics.f
1598     o allows staggered time-stepping
1599     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1600     o added bottom drag (linear + quadratic)
1601    
1602    checkpoint34
1603     o Modified exchange routines for correct reverse simulation.
1604     o Added verification output to comply with bug fix in impldiff.F
1605       as of c33 (exp2, natl_box).
1606     o Corrected store directives in dynamics.F
1607     o Corrected array boundaries in impldiff.F
1608     o Corrected array dimensions in gmredi.
1609       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1610     o Added routine GLOBAL_SUM_INT to global_sum.F
1611     o Added mdsio_gl.F for ECCO purposes.
1612    
1613  checkpoint33  checkpoint33
1614   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
1615   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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