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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.327 by edhill, Thu Jul 8 20:58:24 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 add testreport "-j JOBS" option for parallel builds (tested and pretty
7       impressive on Altix and Opteron systems)
8    o diagnostics can now write NetCDF files through the mnc package
9    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
10    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
11    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
12      affects (truncation error) output of lab_sea & natl_box exp.: updated
13    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
14    
15    checkpoint54a_post
16    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
17    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
18    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
19    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
20      + internal_wave (shift in writing cg2d_ini_res)
21    checkpoint54a_pre
22    
23    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
24      - modified verification/lab_sea and natl_box_adjoint accordingly
25    
26    checkpoint54
27    checkpoint53g_post
28    o prepare splitting of thermodynamics: store convect.counter in common block
29    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
30      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
31    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
32    o new parameter "nShapS": allow to treat differently S from T (nShapT)
33    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
34    o restore adjointability
35    
36    checkpoint53f_post
37    o modifications that affect AIM experiment results (update output.txt):
38      - no advection of S at top interface Nr (pkg/generic_advdiff)
39      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
40    o AIM pkg:
41      - include stability function into surf.Flux derivative relative to Tsurf
42      - calculate clear-sky radiation & surface temp. change (for diagnostics)
43    
44    checkpoint53e_post
45    o merged cylindrical coord configuration
46    o added rotating_tank experiment
47    checkpoint53e_pre
48    
49    checkpoint53d_post
50    o faulks upgraded: re-generate output.txt that have changed:
51       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
52    o Added Bryan and Lewis, 1979, vertical diffusivity profile
53    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
54    o added Sadourny discretization of Coriolis
55      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
56      - re-enabled use of omega3 (useAbsVorticity)
57    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
58      vector-invariant equations
59      - note: does *NOT* yet use same variable visc. for no-slip BC's.
60    o recoded the lateral boundary conditions for non-hydrostatic w, this time
61      hopefully without new bugs
62      - still to do: biharmonic friction for non-hydrostatic w
63    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
64    o regenerated output for global_ocean_ebm (using -ieee)
65    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
66      of mom_common/
67      - simple re-arrangement of instructions within computing loop
68    checkpoint53d_pre
69    
70    checkpoint53c_post
71    o new version of coupler for AIM+thSIce and Ocean models
72     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
73     - land: change Evaporation of snow
74     - aim with thSIce: fix bug in snow-precip.
75    o changes to calc_gw.F
76     - bug fix for w^2 term near the bottom boundary
77     - (hopefully) improve the lateral slip boundary condtions for use with
78        partial/looped cells
79      - because the bug fix changes two verification experiments anyway (exp5
80        and plume on slope), change the lateral boundary condition from half slip
81        to the value of no_slip_sides
82    o ebm package wasnt quite up to the parallel task. Fixed that.
83    o Adjoint of EBM package + verification
84      * TLM OK
85      * ADM not sufficient accuracy yet (needs further testing)
86    
87    checkpoint53b_post
88    o Commiting new energy balance model to repository
89      * package is pkg/ebm
90      * verif. is verification/global_ocean_ebm
91      * references are in ebm_driver.F
92    C      * X. Wang, P. Stone and J. Marotzke, 1999:
93    C        Global thermohaline circulation. Part I:
94    C        Sensitivity to atmospheric moisture transport.
95    C        J. Climate 12(1), 71-82
96    C      * X. Wang, P. Stone and J. Marotzke, 1999:
97    C        Global thermohaline circulation. Part II:
98    C        Sensitivity with interactive transport.
99    C        J. Climate 12(1), 83-91
100    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
101    C        Destabilization of the thermohaline circulation
102    C        by atmospheric eddy transports.
103    C        J. Climate 7(12), 1870-1882
104    o Will need long integration testing.
105    checkpoint53b_pre
106    
107    o created pkg/mom_common in preparation for variable viscosity code
108    o renamed and split ini_mnc_io
109    o pkg/land: only liquid water can diffuse or run-off
110    o AIM using land: soil wetness availability account for snow
111    o added printMapIncludesZeros to EEPARMS namelist
112    
113    checkpoint53a_post
114    o restore TAMC compatiility for exf_constants.h
115      (no usage of _d in .h)
116    o Additional storing in KPP in an attempt to fix
117      TAMC problem with adjoint of KPP code.
118      (no success...)
119      Identical code works fine with TAF.
120    o Fixed verification/natl_box_adjoint experiments.
121      Initial conditions for Experiments 4 and 5 are now
122      set to "SEAICE_initialHEFF=0", which is more reasonable,
123      and hence gives results closer to that of Experiment 2.
124      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
125    
126    checkpoint53
127    o stable checkpoint with up to date adjoint
128      TLM tests only run for 1st grdchk at the moment. Its unclear if
129      this is a code problem or a problem with resetting code for g_
130      variables that is being autogenerated wrong.
131      Otherwise:
132       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
133       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
134         are both still in chaos following their security messes.
135    
136    checkpoint52n_post
137    o various build (mostly genmake2) changes including:
138      - ability to build/run more easily within Cygwin and MacOS X
139      - more complicated Makefiles with a stronger dependence on Gnu Make
140    o pkg/seaice modifications
141      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
142        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
143        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
144      - changed proxy for geostrophic velocity and updated
145        verification/lab_sea/results/* accordingly
146      - removed ADI dynamic solver from pkg/seaice
147      - replaced all occurrences of 1/CSTICE or 1/CSUICE
148        they caused a segmentation fault under certain circumstances
149      - removed unused field WATR
150    o bug fix in exf-package:
151      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
152         now reflect that.
153    o small fixes in the cal-package:
154      - set reference date to first of January for the 'model'-calendar
155      - failing of cal_CheckDate in cal_FullDate now actually results in a
156        warning
157    o small modifications in exf-package to increase flexibility:
158      - change climtempfreeze from a constant to a runtime parameter that
159        is specified in data.exf_clim (default = -1.9)
160      - introduce runtime parameter windstressmax (default = 2.0) that is
161        specified in data.exf
162    o fix in pkg/thsice:
163      - update Evap (Tsf changes) to be consistent with Latent heat flux
164      - maintain snow precipitation unchanged (even if Tsf >=0).
165     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
166    
167    checkpoint52m_post
168    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
169      this does not change any of the results, because myIter=0 in swfrac always
170      lead to jwtype=2 (the default anyway), but the call makes little sense
171      as a default
172    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
173    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
174      atmospheric model (AIM) to use it ; add a "slab ocean" component.
175    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
176    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
177    o extending useSingleCpuIO option to work with new exch2 I/O format
178      - old-style, missing-tile I/O is still accessible by defining CPP
179        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
180    o monitor package can write to NetCDF files and/or STDOUT
181    o fix re-definition bug in MNC_GRID_INIT_ALL()
182    o doc/api_reference added
183      - a framework for building an API Reference Manual using all
184        the "protex" comments embedded in the code
185      - see pkg/generic_advdiff, pkg/mnc for examples
186    o MNC:
187      - make myThid the last argument for all subroutines
188      - new default for the grid files: NO halos
189      - add useMNC and other run-time flags
190      - separate per-file-group handling of the unlimited dimension
191      - early initialization of MNC w/ flags read at the eeboot stage
192        and lookup tables set in initialize_fixed
193      - write all MNC output to a freshly-created directory
194    o thermodynamics sea-ice (thsice) is now tested with testreport.
195    o test exp. advect_cs: use the standard cs32 grid ; update output.
196    o Added functionality to grdchk:
197      pick global i,j,k position (or nearest wet) where to perform check.
198    
199    checkpoint52l_post
200    o new land formulation:
201      a) use ground enthalpy as prognostic variable to ensure exact
202         energy conservation.
203      b) account for water temperature and for latent heat of freezing
204         in all processes (rain, run-off, ground storage)
205      c) compute surface and ground temperature implicitly.
206    o aim_v23 modification for new land model:
207      a) Treat separately land / ocean / sea-ice surface fluxes
208         to allow implicit computation of land & sea-ice surface temp.
209      b) add snow precipitation.
210    checkpoint52l_pre
211    
212    o fix problem (when 1 tile is empty) in min/max monitor.
213    o fix bug in timeAve (u,vZetatave in common block)
214    o no restoring terms under ice for pkg/seaice
215    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
216    o bug fix for pkg/seaice pickups
217    o change MNC call locations and add coordinate attributes
218    o mask vorticity at the corner ; affects global_ocean.cs output
219    o fix ini_curvilinear_grid ; test CS experiments with mpi
220    o aim.5l_cs: modify sea-ice fraction input file ; update output
221    o exf: Adding simple range check routine for exf fields after read
222    
223    checkpoint52k_post
224    o removed top-level directory "diags"
225      - we migrated these functions to pkg/timeave a long time ago
226    o fixed bug introduced in pkg/monitor
227    o accuracy ctrlprec = 32 insuffient for gradient checks using
228      averaged fields (I/O via cost_averages)
229      -> use ctrl.h in active_file*.F to control I/O precision.
230    o paramter list of CALL ADTHE_MAIN_LOOP
231    o added initial do_the_model_io to ecco
232    o set all ...Freq to zero after cost_final
233      taveFreq, dumpFreq, pChkptFreq
234    o MAIN and ECCO differentiability restored
235    
236    checkpoint52j_post
237    o fix nchklev in tamc.h for global_ocean...
238    o Bringing flow and store directives up-to-date
239    o Really weird thing!
240      call do_the_model_io from the_main_loop with parameters
241      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
242      TAF places a faulty re-call of initialise_varia
243      after cost_final call which should not be there!
244    checkpoint52j_pre
245    
246    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
247      error messages
248    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
249    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
250      debug output
251    o modfied mdsio_writefield.F to handle non-global files under exch2
252    o update AIM Cubed-Sphere exp (aim.5l_cs):
253      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
254    o update AIM Equatorial Channel exp:
255      use standard aim_v23 pkg and change the SST fields to be more realistic.
256    o globalFile now works with exch2
257    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
258      mon_vort3.F to make exch2 friendly with >1 tile per cube face
259    o limit timeave output for hi-res integrations
260    
261    checkpoint52i_post
262    o removed CPP_EEOPTIONS.h from verification/*/code
263    o updated the tiling for global_ocean_pressure
264    checkpoint52i_pre
265    
266    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
267      the old pkg/aim).
268    
269    checkpoint52h_pre
270    o shortened offending lines in exch2_send_rx?.template
271    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
272    o genmake2: add build & execute test for NetCDF code
273    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
274      old grid files, moved CPP_EEMACROS.h to pkg/exch2
275    o added useSingleCPUIO flag to monitor.F and mon_out.F
276    o added temporary hack for sea-ice dynamics on the cube:
277      metric terms are ignored and it is assumed that
278      there is no sea-ice on cube faces 1, 2, 4, and 5.
279    
280    checkpoint52f_post
281    o added exch2 cube routines to pkg/exch2
282    o modified hs94.cs-32x32x5 to use it
283    o added new grid files to hs94.cs-32x32x5
284    checkpoint52f_pre
285    
286    checkpoint52e_post
287    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
288      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
289    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
290      to work with implicit vertical advection and AB ;
291    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
292    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
293     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
294    checkpoint52e_pre
295    
296    o fix bug in impldiff when Nr=1 or Nr=2.
297    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
298    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
299    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
300      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
301    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
302    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
303    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
304    
305    checkpoint52d_post
306    o re-tiled many expts to allow comparison in multi-processor mode
307      - updated output accordingly
308      - changed hs94.128x64x5 to use intial T from file rather than use the
309        random number generator
310    o add infrastructure in model routines for fizhi and gridalt packages
311    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
312    o changes to permit hi-res, cubed-sphere, configuration
313      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
314      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
315      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
316        of surface winds for the cube
317      (A verification experiment, based on global_ocean.cs32x15, but with
318       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
319       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
320       complete with example surface forcing files and matlab scripts to look
321       at the output and compare it with that of global_ocean.cs32x15.)
322    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
323       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
324       to conform to the common rule.
325    o check-in the first version of the coupler + interfaces for multi-components
326       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
327       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
328       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
329       - ocean and atmos. share the same horizontal grid (no interpolation).
330       - exchanges between component and coupler is done in forward_step
331    o new verification experiment, cpl_aim+ocn:
332       coupled ocean - AIM atmosphere on cs32 grid.
333    
334    checkpoint52d_pre
335    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
336    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
337    
338    checkpoint52c_post
339    o Fixing OPTIONS files for use of exf:
340      - ALLOW_ECCO not needed
341      - ECCO_CPPOPTIONS.h should not be included from
342        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
343        as has been the case in the past
344      - All cal/exf related options are currently set in
345        single header file. Should remain so until we
346        agree on a consistent new policy.
347    o Removed all CPP options for cal package.
348      cal has no more CPP options.
349    o modified STOREs in GAD_ADVECTION
350    o corrected key comp. for passkey
351    
352    checkpoint52b_post
353    o new version: "thsice" of thermodynamic sea-ice pkg:
354     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
355     - modify fluxes but do not change theta directly;
356     - light cleaning of bulk_force pkg (still needed with thsice).
357     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
358       + output_thsice.txt to test thsice & bulk_force pkgs.
359    o put back grid & coriolis monitor output.
360    checkpoint52b_pre
361    
362    o call "do_the_model_io" at the beginning (=> dump initial state)
363    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
364    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
365      (need info on NUMBER_OF_PTRACERS)
366    o missing PTRACERS headers in some routines
367    o default tamc.h in pkg/autodiff supposed to crash
368      to ensure proper customization
369    
370    checkpoint52a_post
371    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
372      - moved surfaceTendencyTice from pkg/seaice to main code
373      - subroutine FREEZE_SURFACE now limits only surface temperature
374        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
375        => new output.txt for global_ocean.cs32x15 & global_with_exf
376      - keep the old version of FREEZE for backward compatibility;
377        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
378      - corresponding modifs for TAF directives
379    o added surface flux output variables to TIMEAVE_STATVARS
380    o time-averaged output for pkg/ptracers
381    o fix problem with ECCO-related divided adjoint
382      snapshot file was missing some ad-variables,
383      but no warning issued by TAF
384    
385    checkpoint52a_pre
386    o some bug fixes for #undef REAL4_IS_SLOW
387    
388    checkpoint52 = ecco_c52_e35
389    o after testing adjoints of checkpoint51u_post
390    
391    checkpoint51u_post
392    o this is the post-merge tag of the ecco-branch
393      (needs another clean checkout and re-testing)
394    o various natl_box_adjoint configs and results
395      but no input fields
396    o obcs adjoint not yet merged!
397    o adding ECCO global 1x1 and 2x2 degree configs
398    o updated/extended some store directives for seaice
399    o pkg/ecco now containes ecco-specific part of cost function
400    o top level routines the_main_loop, forward_step
401      supersede those in model/src/
402      previous input data.cost now in data.ecco
403      (new namelist ecco_cost_nml)
404    o in ctrl/ cleaned some cross-dependencies and updated CPP options
405    
406    checkpoint51t_post
407    o this is the pre-merge tag of the ecco-branch
408    
409    checkpoint51s_post
410    o cleanup: removed various obsolete #define-s
411    o pkg/grdchk
412      - renamed 'ph-grd 3' to 'grad-res'
413      - merged from ecco-branch
414        (remaining bug fixes for obcs gradient checks)
415      - additional high-precision output for testreport
416        (grep for 'precision_grdchk_result')
417    
418    checkpoint51r_post
419    o cleaned up or removed CPP_OPTIONS.h files
420    o updated results for some of the tests to reflect the new
421      optfiles (-ieee: -O0 instead of -O3)
422    
423    checkpoint51q_post
424    o cd_code:
425      - moved cd_scheme.F -> cd_code_scheme.F
426      - separate read_checkpoint from cd_code_ini_vars.F
427      - separated cd_code part from write_checkpoint
428      - updated AD_SOURCE, generated .flow
429      - added CD_CODE_VARS.h to the_main_loop
430      - Moving cd_code specific store dir.s to pkg/cd_code
431    o ctrl package totally restructured
432      - pack/unpack now optional and decoupled from
433        xx_/adxx_ I/O
434      - ctrl_pack/unpack cleaned
435        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
436      - confined inclusion of AD_CONFIG.h to where necessary.
437    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
438    
439    checkpoint51p_post
440    o create initial cd_code package
441      - WARNING: the initialization of fields within packages
442        is broken because INI_FIELDS (where READ_CHECKPOINT is
443        called) is called *before* PACKAGES_INIT_VARIABLES.
444        This seems to be backwards since
445        1) its important to initially zero the entire field including
446           the "halo" region
447        2) zeroing needs to be done *before* reading pickup info
448           and the pickup call might or might not happen in any
449           particular run
450      - this needs an overhaul for R2
451    o cleanup verification/*/code/GMREDI_OPTIONS.h
452    o cleanup testreport
453    
454    checkpoint51o_post
455    o bringing AD-related verif's up to date with genmake2
456      - carbon/
457      - global_ocean.90x40x15/
458      - hs.94.1x64x5/
459      - (front_relax/ )
460    o (more) consistent directory structure for AD-related verif.'s
461    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
462    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
463    o bug fix in find_alpha.F for MDJWF:
464      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
465        change rho -> rho-rhoConst
466      - replace call find_rho to find_rhonum
467    o initialisation of rFlx extended to full array (required by TAF)
468      and shifted to thermodynamics
469    o removed PTRACERS.h in ptracers routine
470    o added surfacetendencyPtr to S/R parameter list pracers_forcing
471    o Correcting initialisations for fVerU, fVerV.
472    o helping TAF to recognize dependency on kUp for
473      fVerU, fVerV
474    o Replacing delZ by delR in pkg/ctrl/
475    checkpoint51o_pre
476    
477    o undid all of cp51 pending some cleanups and discussion
478    o added the [#include "AD_CONFIG.h"] statement to all files that need
479       it for adjoint/tl #defines
480     o re-worked the build logic in genmake2 to support AD_CONFIG.h
481     o removed tools/genmake since it no longer works
482    
483    checkpoint51n_post
484    o modifications to make FREEZE flux visible to pkg/kpp
485      - moved surfaceTendencyTice from pkg/seaice to main code
486      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
487      - subroutine FREEZE now limits only surface temperature
488        (this means new output.txt for global_ocean.90x40x15,
489         global_ocean.cs32x15, and global_with_exf)
490    o added surface flux output variables to TIMEAVE_STATVARS
491    
492    checkpoint51n_pre
493    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
494    o added [#include "AD_CONFIG.h"] to all files that use the following
495      defines:
496      - ALLOW_ADJOINT_RUN
497      - ALLOW_TANGENTLINEAR_RUN
498      - ALLOW_ECCO_OPTIMIZATION
499    
500    checkpoint51m_post
501    o incorporating changes to get TAMC/TAF working in genmake2
502      - added new TAMC/TAF targets to the Makefile
503      - various cleanups related to package handling
504      - these changes should have no impact on the forward model
505    
506    checkpoint51l_post
507    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
508     - faster algorithm for cal_addtime.F
509     - higher precision arithmetic, where needed
510     - pkg/exf *startdate variables changed from calendar date to
511       model integration time
512    
513    checkpoint51l_pre
514    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
515    o enable to apply restoring on S & T only in a latitude band.
516    o update output (external_forcing_surf modif. change truncation errors)
517       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
518    
519    checkpoint51k_post
520    o change default to: useNHMTerms=.FALSE.
521     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
522       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
523     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
524        exp1, ideal_2D_oce
525     - change data file of oceanic exp (leave the results unchanged for now)
526       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
527    o set gravitySign automatically according to the vertical coordinate used
528      (and change sign: back to "logical" value: +1 when R increases downward)
529    o added an include barrier to the default CPP_OPTIONS.h and
530      removed the #include "PACKAGES_CONFIG.h" from it
531    o fix a bug in mom_fluxform (from chk51j_post)
532    
533    checkpoint51j_post
534    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
535    o adjusted some flow directives (dynamics, thermodynamics)
536    o added cubed-sphere case to test cost function
537    o heckpoint_lev?_directives.h now include
538      pkg-specific directives, whenever those are enabled.
539    o Moving pkg-specific flow directives to corresponding pkg
540      Moving pkg-specific differentiation list to corresponding pkg
541      Moving pkg-specific checkpoint-lev storing to corresponding pkg
542      ---> conventions are
543           - pkg_ad.flow
544           - pkg_ad_diff.list
545           - pkg_ad_check_lev?_dir.h
546    
547    checkpoint51i_post
548    o merge of the branch-genmake2
549      - knowingly breaks the older genmake
550      - automatic generation of all ALLOW_${PKG_NAME} defines
551      - new testreport supersedes older testscript
552    o large number of package inclusion and header cleanups
553    checkpoint51i_pre
554    
555    o new output for adjoin of global ocean vector invariant
556    o fix for checkpoint of thermodynamic seaice and bulk_force
557    o Steph gchem various cleanups
558    
559    checkpoint 51h_pre
560    o fixed some single quotes
561    o modify gchem pkg to be more versatile
562    o modifications to clean up dic pkg
563    o add pkg/cfc
564    
565    checkpoint51g_post
566    o provide links for ARPACK and ADM*TLM
567    o start removing verification/vero/
568    o update AD-related stuff
569      (in particular some IF-statements in model/src/ routines)
570    o adding to verification/global_ocean.90x40x15/ adjoint of
571      vector invariant setup
572    
573    checkpoint51f_post
574    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
575    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
576      of tracer Green's fucntions for ocean inversion project.
577    
578    checkpoint51f_pre
579    o Added on-the-fly spatial interpolation capability
580        "USE_EXF_INTERPOLATION" to pkg/exf.
581      - This is a temporary Cartesian-grid hack until
582        the super-duper ESMF coupler becomes available.
583      - See verification/global_with_exf/README for usage example.
584      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
585        flags and modified pkg/seaice accordingly.
586    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
587        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
588        non-local transport term.
589    
590    checkpoint51e_post
591    o pkg/mom_vecinv:
592      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
593      - add time-ave diagnostic of vorticity advection.
594    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
595    o atmospheric geopotential: - include water vapor effect;
596                                - use p^kappa in p* scaling.
597    o land pkg: read initial state from files.
598    o AIM : add stratospheric drag in the upper level
599    
600    checkpoint51d_post
601    o change function ILNBLNK (=> last non-blank char.) to return zero
602      (instead of the string length) when the string. char is empty
603    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
604    o modif's to restore TAMC compatibility
605      - avoid "_d" constructs in PARAMETER declarations
606      - avoid interrupting lines by comment lines
607    o Use cluster local disks for purely local I/O
608      vs. globally visible disks needed for ctrl stuff
609      (merged from ecco-branch)
610      - new active_file_loc... and mdsio_..._loc routines
611      - affected packages: autodiff, ctrl, grdchk, mdsio
612    
613    checkpoint51c_post
614    o introducing integer flag debugLevel
615      - debLevZero: suppress all output
616      - debLevA: standard
617      - debLevB: equivalent to current debugMode=.TRUE.
618    o introducing pathname variable mdsioLocalDir for mdsio
619      that can be specified at runtime
620      (relevant for cluster I/O to local disk)
621    `
622    >>>checkpoint51b_post
623    adjoint of ptracers
624    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
625    o extended state in checkpoint_lev?, etc.
626    o alternative ctrl/cost with tr1 or ptracer
627    o new comlev1_bibj_ptracers
628    o new ptracers.flow
629    o made ptracers_forcing same as external_forcing_s
630    o added verification for adjoint with ptracers
631      - adm. grdchk fail so far
632      - tlm. grdchk OK
633      - checked tapelev/comlev recomputations: OK
634    <<<checkpoint51b_pre
635    
636    checkpoint51a_post
637    o added code for biogeochemistry package
638      - new pkgs: dic, gchem
639      - new subroutine in ptracers
640    o modify code for biogeo packages
641      - in model/src and pkg/ptracers
642    
643    checkpoint51
644    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
645      - autodiff, ctrl, exf, grdchk, seaice
646      kept separate packages
647      - cost, ecco, obcs
648    o updating verification/internal_wave, verification/lab_sea
649      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
650    
651    checkpoint50i_post
652    o Preparing next differentiable checkpoint and sync
653      of MAIN vs. ecco-branch
654      - 1st step: this one is differentiable
655      - 2nd step: next(! not this) checkpoint will have updated packages
656                  from ecco-branch)
657    
658    checkpoint50h_post
659    o new package "land": provide surface BC for AIM.
660    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
661    o AIM: use true log-P extrapolation for near surface temp (= as in
662        F.Molteni paper) ; update aim.5l_cs output.
663    o New variable in PARM03 for more flexible pickups
664    o somewhat cleaned package initialisation sequence for
665      ctrl/ cost/ ecco/ in packages_... routines
666    
667    checkpoint50g_post
668    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
669      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
670      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
671        made the default because of faster convergence than ADI
672    
673    checkpoint50f_post
674    o exf totally restructured
675      - replaced all exf_set_ routines by one generic exf_set_gen.F
676        and made sure it's still differentiable
677      - split exf_getffields.F into new exf_bulkformulae.F
678      - exf_inscal_/exf_outscal_ suffixes consistent with field names
679      - updated adjoint/makefile and relevant verif. accordingly
680    
681    checkpoint50f_pre
682     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
683          + change Evap over land. (update aim.5l_cs output)
684     o added missing .cvsignores and made uniform across expts
685     o changed configuration of tidal_basin_2d expt
686     o added pkg/debug functions for tracing code in fatal crashes
687     o tidied pkg/monitor to use MONITOR_OPTIONS.h
688     o new fn in pkg/monitor to stop model if solution grows too big
689     o removed lots of single quotes from comments
690    
691    checkpoint50e_post
692    o make KPP work with PTRACERS
693     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
694       nearly a copy of kpp_transport_s
695     - there is no analogue to SurfaceTendencyS, so I have to use
696       gPtr(of the surface layer) instead
697    o add a new platform SunFire+mpi (SunFire 15000) to genmake
698    checkpoint50e_pre
699    
700    checkpoint50d_post
701    o change kpp output from multiple-record state files to single-record state
702      files analogous to write_state.F
703    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
704      analogous to the cg2d-related output.
705    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
706      so that writing to internal file fn (with length 512) fails.
707    checkpoint50d_pre
708    
709    checkpoint50c_post
710    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
711    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
712    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
713    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
714    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
715    
716    checkpoint50c_pre
717    Merging from release1_p13:
718    o bug fix for pkg/seaice dynamic solver
719    o Added SEAICE_initialHEFF to pkg/seaice
720    
721    checkpoint50b_post
722    o store u*,v* in gU,V instead of in guNm1,gvNm1
723    o in order to put the momForcing out of the Adams-Bashforth:
724      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
725      to timestep.F
726    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
727    o re-generate output for highly sensitive test-exp:
728       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
729    
730    checkpoint50b_pre
731    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
732    o corrected CPP option mismatch in exf_Bulk... functions for case
733      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
734    
735    checkpoint50a_post
736    o Bug fix for merging between c50 and KPP.
737      ikey was passed from thermodynamics to kpp_calc via
738      common block rather than being recomputed in kpp_calc,
739      in contradiction with new key itdkey.
740      New key ikppkey created, and tamc.h headers updated.
741    
742    checkpoint50
743    - 2nd step of merge with ecco-branch:
744      merge changes in ecco-branch back into main trunk
745    - bug fix in find_alpha
746    - more storing in gmredi_calc_tensor.F, kpp_routines.F
747    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
748    - merged some sliced AD support routines
749    
750    checkpoint49
751    merged from ecco-branch:
752    o exf:
753      - Enable initialisation of forcing fields to constant
754        (runtime) values.
755      - in exf_getffields.F
756        Reduce i-/j-loop to interior domain, discarding overlaps.
757        That also fixes wrong TAF-key computations for key_1, key_2
758        with bulf formulae.
759      - exf_init.F modify #ifdef for exf_init_evap
760      - exf_getffieldrec.F, ctrl_getrec.F
761        The following INT-usages are not safe:
762          fldsecs  = int(fldsecs/fldperiod)*fldperiod
763          fldcount = int(fldsecs/fldperiod) + 1
764        and were modified.
765    o autodiff: checkpoint_lev...
766      - updated storing for bulk formulae (some arrays were missing)
767      - added state for seaice package
768      - synchronized with main branch
769    o DIVA:
770      Modif.s in
771      - the_main_loop.F
772      - the_model_main.F
773      and added cost_final_restore.F cost_final_store.F
774      o With these changes, it is possible to fully separate
775        the first forward run to compute the cost function (mdthe_main_loop)
776        and adjoint runs over individual DIVA intervals (adthe_main_loop)
777        into separate model executions.
778        This enables better tuning of DIVA to given queue sizes.
779      o Loss of cost function value in consecutive DIVA runs is
780        fixed by storing to 'costfinal' file.
781      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
782        beginning/end of adjoint integration is accounted for.
783      The current changes apply to TAF-1.4.26.
784      TAF has one remaining bug, requiring one manual change
785      (see MITgcm manual).
786    o cal: synchronized between MAIN and ecco-branch
787    
788    checkpoint48i_post
789    o Changes to restore differentiability of code w.r.t. previous tag
790      (mostly adding new routines to make list and replacing
791      pressure by totPhiHyd).
792    o Updated and merged grdchk package
793      - has both ADM and TLM checks
794      - works for single- and multi-proc.
795      - output cleaned
796      - worked successfully for parallel DIVA
797    o genmake:
798      - Adding -platform=SP4
799      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
800    o Modif. for DIVA:
801      ctrl_unpack should not be called in intermediate DIVA interval.
802      (similar thing would apply for active files such as
803      tbar, sbar, psbar, which should not be reinitialised;
804      only relevant for ecco-branch)
805    
806    checkpoint48h_post
807    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
808    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
809    o Added SEAICE_initialHEFF to pkg/seaice
810    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
811    
812    checkpoint48g_post
813    --- EOS:
814    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
815      store total Potential in totPhyHyd for diagnostics & EOS.
816    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
817    --- Pressure/geopotential gradient:
818    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
819    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
820      ( changes results of global_ocean_pressure )
821    o NLFS + z-coord.: add eta*Rho' contribution.
822    o accurate phiHyd when using interface-W at the middle between 2 centers
823     ( changes results of ideal_2D_oce )
824    o includes r* 2nd term in potential gradient.
825    
826    checkpoint48f_post
827    Merging from release1_p12:
828    o Modifications for using pkg/exf with pkg/seaice
829      - improved description of the various forcing configurations
830      - added basic radiation bulk formulae to pkg/exf
831      - units/sign fix for evap computation in exf_getffields.F
832      - updated verification/global_with_exf/results/output.txt
833    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
834      (SBO) core products, including oceanic mass, center-of-mass,
835      angular, and bottom pressure (see pkg/sbo/README.sbo).
836    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
837      to avoid negative values in shallow regions.
838      - updated verification/natl_box/results/output.txt
839      - updated verification/lab_sea/results/output.txt
840    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
841    o Added useSingleCpuIO option (see PARAMS.h).
842    o Updated useSingleCpuIO option in mdsio_writefield.F to
843      work with multi-field files, e.g., for single-file pickup.
844    o pkg/seaice:
845      - bug fix in growth.F: QNET for no shortwave case
846      - added HeffFile for specifying initial sea-ice thickness
847      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
848    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
849      kpp_transport_t.F, forward_step.F, and the_main_loop.F
850    o pkg/seaice:
851      - adjoint-friendly modifications
852      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
853    
854    checkpoint48e_post
855    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
856    o dynamics: change definition of computational domain & adapt mom_fluxform
857      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
858    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
859        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
860        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
861        global_ocean.90x40x15 global_with_exf global_ocean_pressure
862        inverted_barometer solid-body.cs-32x32x1
863      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
864    
865    checkpoint48d_post
866    o in preparation for r*:
867     a) use pre-computed gradient of hydrostatic potential:
868        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
869     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
870        => affects results of glob_oce_pressure (different truncation error)  
871      update output.txt of ideal_2D_oce & global_ocean_pressure
872    
873    checkpoint48d_pre
874    o in preparation for r*:
875      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
876      pass the 2 comp. of the grad. as arguments to momentum S/R.
877      but for the moment, only used if it does not change the results.
878    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
879    
880    checkpoint48c_post
881    Modifications in treatment of initial flux forcing controls
882    to avoid extra storing of flux fields.
883    
884    checkpoint48c_pre
885    o Added tidal_basin_2d experiment (currently 1D!)
886    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
887    
888    checkpoint48b_post
889    o r* coordinate added in #ifdef NONLIN_FRSURF block.
890     (modification to pressure gradient not yet implemented)
891    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
892      (for U & V) that are used for vertical advection of momentum.
893    
894    checkpoint48a_post
895    o In preparation for r*, use temp. array to compute vertical transport
896       in flux-form momentum pkg. => change results of few test-exp.
897      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
898                        lab_sea, natl_box & plume_on_slope
899    
900    checkpoint48
901    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
902    
903    checkpoint47j_post
904    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
905    o moved adexch from forward_step to addummy_in_stepping
906    o added exch in ctrl_map_...
907    o aveFreq.=0. at end of cost_final to avoid overwrite in
908      reverse checkpointing loop
909    o Yet more changes in gmredi:
910      * adgmredi_calc_tensor
911        avoiding all recomputation of gmredi_slope_limit
912      * adgmredi_x/y/rtransport
913        added flag for excessive storing to avoid recomp. of
914        u/v/rtans, dTdx/y/z
915        -> this is not really necessary and very memory-consuming
916      * adgmredi_slope_psi:
917        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
918      * gmredi_slope_limit
919        re-activated full calculation of taperfct for case 'ac02'
920    o updating verification/ adjoints of carbon, global_ocean.90x40x15
921    
922    checkpoint47i_post
923    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
924    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
925      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
926    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
927    o gmredi: fix few bugs.
928    
929    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
930    This will be a good checkpoint to plug into the ecco-branch.
931    o few modif.'s to get latest version adjointed
932      (mainly kick out code in ini_linear_phisurf)
933    o modif's to run adjoint with exactConserv
934    o case GM_BOLUS_ADVEC should be cleaned
935      S/R gmredi_slope_psi should be cleaned
936    o verification/carbon now has exactConserv=.TRUE.
937    
938    checkpoint47g_post
939    o time-average AIM output: becomes independent from statvars time-average
940      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
941    o After TAF bug fix:
942      Tested adjoint of gmredi package.
943      Tests were done with checkpoint47 rather than with latest
944      checkpoint47f_post since the latter is broken for the adjoint
945      verification/carbon/ contains both ADM and TLM gradient checks.
946    Here they are, before they get changed/lost/stolen.
947    Mostly modif.'s to fix numerical sensitivities.
948    Gradient checks OK for
949    - GM_taper_scheme:
950      * clipping
951      * ac02
952      * linear
953      * glw91
954      * dm95
955      * ldd97
956    - GMREDI_OPTIONS:
957      * GM_VISBECK_VARIABLE_K
958      * GM_NON_UNITY_DIAGONAL
959      * GM_EXTRA_DIAGONAL
960      * GM_BOLUS_ADVEC
961    in conjunction with data.gmredi parameters to be checked in
962    in a few minutes under verification/carbon/code/
963    
964    checkpoint47f_post
965    Merging from release1_p10:
966    o modifications for using pkg/exf with pkg/seaice
967      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
968        and SEAICE_EXTERNAL_FLUXES
969      - pkg/exf CPP options EXF_READ_EVAP and
970        EXF_NO_BULK_COMPUTATIONS
971      - usage examples are Experiments 8 and 9 in
972        verification/lab_sea/README
973      - verification/lab_sea default experiment now uses
974        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
975    
976    checkpoint47e_post
977    o created a tag prior to creating a branch
978    
979    checkpoint47d_post
980    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
981      at the bottom boundary had an erroneous half slip boundary condition
982    o added bottom drag and no slip boundary condition capabilities to
983      oceanic pressure coordinates code
984    o added new verification experiment global_ocean_pressure, this experiment is
985      also described in the tutorial section of the manual
986    checkpoint47d_pre
987    
988    checkpoint47c_post
989    o Added a verification experiment for a global cubed-sphere ocean run
990      -  verification/global_ocean.cubed32x32x30
991      -  uses pkg/therm_seaice and pkg/bulk_forcing
992    
993    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
994    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
995      when using P-coordinate; only implemented for atmospheric config.
996    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
997      NOTES: requires option NONLIN_FRSURF to be "#define".
998    o update advect_xz/results/output.txt (left from checkpoint44g_post)
999    
1000    checkpoint47b_post
1001    Merging from release1_p9:
1002    o pkg/seaice
1003      - removed GOTO's and added taf directives
1004      - double precision constants to reduce the g77 (Linux)
1005        to F77 (SGI) differences reported in release1_p8
1006    o tools/genmake
1007      - added SGI options
1008    o verification/testscript
1009      - updated to that of checkpoint47a_post
1010    o verification/global_ocean.90x40x15/input/eedata
1011      - modified for SGI f77 compatibility
1012    o verification/lab_sea
1013      - added description of sea-ice model
1014      - added missing matlab routines
1015      - added test of thermodynamics parallelization
1016    
1017    checkpoint47a_post
1018    o new pkg: aim_v23
1019     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1020       for now, keep the same surface forcing as before.
1021     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1022     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1023     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1024    o add diagnostic of surface correction term in monitor output
1025    
1026    o bulk_force and therm_seaice
1027    - Two packages:  bulk_force (Bulk forcing)
1028      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1029    - Earlier integration from Stephaine Dutkiewicz
1030      and Patrick Heimbach.
1031    - Two ifdef statements for compile time,
1032       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1033    
1034    checkpoint47
1035    differentiable version of checkpoint46n_post
1036    o bug fix in quasihydrostaticterms
1037    o * "clean" adjoint code (in terms of extensive recomputations)
1038        can now be obtained for all GMREDI options (i.e. for
1039        - GM_VISBECK_VARIABLE_K
1040        - GM_NON_UNITY_DIAGONAL
1041        - GM_EXTRA_DIAGONAL
1042        - GM_BOLUS_ADVEC )
1043      * However, wrong gradient check problem remains unsolved.
1044      * New CPP options have been introduced for different
1045        tapering schemes
1046    o external_fields_load now part of differentiation list
1047    o pressure needs multiple storing;
1048      would be nice to have store_pressure at beginning or
1049      end of forward_step, e.g. by having phiHyd global (5-dim.)
1050      (NB: pressure is needed for certain cases in find_rho,
1051      which is also invoked through convective_adjustment).
1052    o recomputations in find_rho for cases
1053     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1054    o #define ATMOSPHERIC_LOADING should be differentiable
1055    o ini_forcing shifted to begining of initialise_varia
1056    o Incorporating QNVS line search routines into MITgcm
1057      (this is separate code, and therefore not under pkg)
1058      lsopt/, optim/
1059    o Updated verification/carbon/
1060      - #define GM_VISBECK_VARIABLE_K
1061      - GM_taper_scheme    = 'ldd97'    
1062    
1063    checkpoint46n_post
1064    Merging from release1_p8:
1065    o verification/natl_box:
1066      updating new external_fields_load routine
1067    o New package: pkg/seaice
1068      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1069      The sea-ice code is based on Hibler (1979-1980).
1070      Two sea-ice dynamic solvers, ADI and LSR, are included.
1071      In addition to computing prognostic sea-ice variables and diagnosing
1072      the forcing/external data fields that drive the ocean model,
1073      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1074      The implied surface heat flux is then stored in variable
1075      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1076      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1077      non-local transport term.  Because this call precedes model
1078      thermodynamics, temperature under sea-ice may not be "exactly" at
1079      the freezing point by the time theta is dumped or time-averaged.
1080      N.B.: fairly large differences in accuracy occur across
1081            different platforms/compilers; comparison between
1082            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1083            generated output gives:
1084       T           S           U           V
1085      C D M    c        m  s        m  s        m  s        m  s
1086      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1087      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1088      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1089    
1090      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1091    o GAD:
1092      - generated new common blocks to account for call of
1093        same gad routines with differing traceridentities
1094        (needed to modify tracerIdentity indices in GAD.h)
1095      - generated separate common blocks for case useCubedSphereExchange
1096        (Department of Futurology)
1097      - parameter lists to gmredi_?transport: added tracerIdentity
1098      - added new key indices to tamc.h
1099    o external_fields_load:
1100      - added this routine to TAF list
1101      - needed to make some common blocks global and additional storing
1102        along the same lines as exf package (checkpoint_lev?_directives.h)
1103    o exf:
1104      updated external forcing package
1105      - bug fixes carried over from ecco-branch
1106        (missing OBCS_OPTIONS.h in two routines)
1107      - enable easy to use "no forcing".
1108      - added exf I/O for atmospheric loading
1109      - added exf I/O for runoff data
1110      - transfered scaling between exf <-> MITgcm to exf namelist
1111    o Adding new verification experiment global_with_exf.
1112      This verification experiment is almost identical to the
1113      global_ocean.90x40x15 experiment, except that it uses
1114      the exf (and cal) package instead of the
1115      external_fields_load routine (cf README file).
1116    
1117    checkpoint46m_post
1118    o modified testscript to return -- when there are no lines of "%MON" output
1119    o added new flag "quasiHydrostatic" for QH mode
1120      and new routine quasihydrostaticterms()
1121    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1122      New routine: mom_u_coriolis_nh()
1123    o fixed sign of non-hydrostatic metric terms in u and v equations.
1124      Depend on correct sign of gravitySign.
1125    o added work.pc* to .cvsignore in aim directories using ifc
1126    o introduced flag for controllin non-hydrostatic metric terms
1127    o removed gravitySign from PARM04
1128    o switched to g77/ifc from pgf77 in aim experiments
1129    
1130    checkpoint46l_post
1131    o made convective adjustment work with pressure coordinates:
1132     - changed the direction of k-loop in convective_adjustment.F for the
1133       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1134     - adjusted the reference pressure k-index in convective_adjustment.F
1135     - adjusted the convection condition in convect.F (in analogy to
1136       calc_ivdc.F)
1137     - convective_adjustment no longer computes anything on the halos
1138     - removed the warnings about negative salinity from find_rho.F and
1139       find_alpha.F; instead the new routine look_for_neg_salinity, called
1140       at the beginning of find_rho, find_alpha, and find_beta, does a
1141       check of the entire slice, if CPP-option
1142       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1143    checkpoint46l_pre
1144    
1145    checkpoint46k_post
1146    o fixed the verification/global_ocean.90x40x15 experiment:
1147     - new bathymetry (the world according to A., JMC, and M.)
1148     - new initial fields and forcing fields (*.bin files)
1149     - new POLY3.COEFFS (for the next release one should switch to a full
1150       equation of state: JMD95P or MDJWF)
1151     - fixed several errors and redundancies in the data file
1152     - experiment uses looped cells
1153     - added matlab directory with diagnostic scripts for plotting of output
1154    
1155    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1156     - read AIM physics parameters from a file (data.aimphys)
1157     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1158    
1159    checkpoint46j_post
1160    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1161    o move wVel computation at the end of the time step, in S/R integr_continuity
1162    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1163    o update timeave pkg for wVel diagnostic.
1164    checkpoint46j_pre
1165    
1166    checkpoint46i_post
1167    o Clean up AIM package (and keep the results unchanged):
1168      include CPP_OPTION and use IMPLICT NONE in all routines ;
1169      declare all the variables _RL ; use _d 0 for all numerical constants.
1170      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1171    
1172    checkpoint46h_post
1173    o cleaned up the use of rhoNil and rhoConst.
1174      - rhoNil should only appear in the LINEAR equation of state, everywhere
1175        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1176        and the dynamical equations are all divided by rhoConst
1177    o introduced new parameter rhoConstFresh, a reference density of fresh
1178      water, to remove the fresh water flux's dependence on rhoNil. The default
1179      value is 999.8 kg/m^3
1180    o cleanup up external_forcing.F and external_forcing_surf.F
1181      - can now be used by both OCEANIC and OCEANICP
1182    checkpoint46h_pre
1183    
1184     Added code to convert surface volume flux (fresh water) into
1185     a mass flux when using P coordinates in the ocean (OCEANICP).
1186     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1187    
1188    checkpoint46g_post
1189    o Include a new diagnostic variable phiHydLow for the ocean model
1190      - in z-coordinates, it is the bottom pressure anomaly
1191      - in p-coordinates, it is the sea surface elevation
1192      - in both cases, these variable have global drift, reflecting the mass
1193        drift in z-coordinates and the volume drift in p-coordinates
1194      - included time averaging for phiHydLow, be aware of the drift!
1195    o depth-dependent computation of Bo_surf for pressure coordinates
1196      in the ocean (buoyancyRelation='OCEANICP')
1197      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1198        Theta, Salinity, and Pressure in the parameter list. This routine is
1199        presently contained in find_rho.F. This routine does not give the
1200        correct density for 'POLY3', which would be a z-dependent reference
1201        density.
1202    o cleaned up find_rho
1203      - removed obsolete 'eqn' from the parameter list.
1204    o added two new verification experiments: gop and goz
1205      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1206    checkpoint46g_pre
1207    
1208    checkpoint46f_post
1209    o Enable tangent linear (forward mode) gradient checks:
1210      - extended active file handling to g_... files
1211      - added TANGENT_SIMULATION to theSimulationMode
1212      - extended grdchk package accordingly
1213    o added tangent linear setup in verification/carbon/code_ftl
1214    o added adjoint setup in verification/front_relax/code_ad
1215    
1216    checkpoint46e_post
1217    o Added new equation of state -> MDJWF
1218      - EOS of McDougall et al., 2002, JAOT, submitted
1219      - caveat: the equation of state is only valid for a smaller (more
1220        realistic?) range of values than JMD95P/Z and UNESCO
1221      - added masks to the calculation of pressure in store_pressure
1222      - added more check values for density in check_eos (ini_eos.F), some of
1223        the old check values are out of the range of the MDJWF-eos, so don't
1224        expect perfect matches for those
1225    checkpoint46e_pre
1226    
1227    checkpoint46d_post
1228    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1229      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1230      case of pressure coordinates. eosType='JMD95Z' in
1231      combination with buoyancyRelation='OCEANICP' now causes an error.
1232    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1233      in find_alpha/beta.
1234    checkpoint46d_pre
1235    
1236    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1237      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1238    
1239    checkpoint46c_post
1240    o Changes necessary for ocean in p-coordinates
1241     -  Added new buoyancy relation = 'OCEANICP'
1242     -  Added new parameters = gravitySign (this used to be contained inside
1243        the factor dRdZ which I added when we first switched to R coordinates).
1244     X GM/Redi is not compatible (yet)
1245     X bottom drag and no-slip need to be debugged.
1246    checkpoint46c_pre
1247    
1248    checkpoint46b_post
1249    o Added new equation of state -> JMD95Z and JMD95P
1250      - EOS of Jackett and McDougall, 1995, JAOT
1251      - moved all EOS parameters into EOS.h
1252      - new routines ini_eos.F, store_pressure.F
1253    o Added UNESCO EOS, but not recommended because it requires
1254      in-situ temperature (see JMD95)
1255    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1256      unesco.f to be used with POLY3
1257    checkpoint46b_pre
1258    
1259    checkpoint46a_post
1260    o Added (atmospheric) pressure loading
1261      - new field in FFIELDS.h, etc...
1262      - new cpp flag ATMOSPHERIC_LOADING
1263    o Changed hFacC to _hFacC in calc_phi_hyd.F
1264    o Added SHORTWAVE_HEATING to some files for consistency
1265    checkpoint46a_pre
1266    
1267    checkpoint46
1268    further merges from release1_p5
1269    o new ctrl package
1270      - adopted from ECCO environment to enable optimization
1271      - added Eliassen Palm fluxes to controls
1272    o added Eliassen Palm flux controls to gradient check package
1273    o cost package
1274      - Compatible with new ctrl package
1275      - added Eliassen Palm cost hooks
1276      - modif's of existing cost functions
1277    o Adjoint-related bug fixes in kpp:
1278      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1279      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1280    o autodiff package
1281      - flow directives:
1282        + new for S/R do_the_model_io
1283        + enhanced for S/R checkpoint
1284        + new gmredi.flow
1285      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1286        disable adcommon.h/g_common.h by default.
1287      - fixed problem for adjoint of global_max
1288    o modified verification/carbon/
1289    o New setup for adjoint of global_ocean
1290    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1291    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1292    o incorporated hooks for sponge layer code (external_forcing.F)
1293    
1294    checkpoint45d_post
1295    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1296    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1297      (affects plume_on_slope "cg2d" output)
1298    o add new parameter deltaTfreesurf for free-surface time stepping
1299    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1300    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1301    o change phiMin in exp1 (to agree with documentation)
1302    o add new flags:
1303     - T,S forcing inside/outside Adams-Bashforth
1304     - turn off temp,salt advection and/or forcing
1305     - for each tracer, define internal flag for multiDimAdvection & A-B
1306    o monitor: change definition of KE to check conservation of Energy
1307    
1308    checkpoint45c_post
1309    o Removed f90 comments ("!")
1310    o Modified initialisations to enable exf package for MITgcm
1311      (without invoking ECCO_PACKAGE).
1312    o modifications to gradient check package (Martin Losch)
1313      - enable centered differences
1314      - modified format of standard output
1315    
1316    checkpoint45b_post
1317    o cleaned exchange calls in cg2d
1318    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1319    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1320      to configure barotropic setup (Martin Losch)
1321    o moved some initialisations within bi,bj loop in dynamics
1322      (TAF flow dependency)
1323    o in initialise_varia, moved call packages_init_variables
1324      before convective_adjustment_init
1325      (corresponding adjustment of TAF tape initialisation).
1326    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1327    
1328    checkpoint45a_post
1329    o compute Rho over the whole domain (extend iMin,jMin indices)
1330    o specific exchange for X-slice domain (case Ny=1)
1331    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1332    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1333    
1334    checkpoint44h_post = checkpoint45
1335    o Fix to restore differentiability:
1336      place at which packages_init_variables is called in
1337      initialise_varia is crucial for reverse control flow.
1338    o modifications in GMRedi to enable stable adjoint
1339      (corresponding modif's in thermodynamics, dynamics)
1340    o added missing hook for sponge layer code in external_forcing
1341    o modified test cost functions
1342    o storing in gad_advection (plus removal of write(0,*)!
1343    o missing headers TR1.h added in convective_adjustment routines
1344    o errorMessageUnit set non-equal zero in eeboot
1345      (conflict on some platforms, e.g. IBM SP3)
1346    o modified carbon verif.
1347    
1348    checkpoint44h_pre
1349    o vertical grid option: allow to put the Interface at the middle between
1350      2 cell-centers ; replace delZ in pkg/kpp by drF.
1351    o GM Advective form: Tracers are advected using the residual transport (=
1352      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1353    
1354    checkpoint44g_post
1355    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1356      results) ; ifdef missing in thermodynamics.F
1357    
1358    checkpoint44f_pre,checkpoint44f_post
1359    o added PTRACERS package
1360      This allows an arbitrary number of passive tracers to be integrated
1361      forward simultaneously with the dynamicaly model.
1362      + Implemented so far:
1363        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1364        - I/O and checkpointing
1365        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1366      + Not implemented so far:
1367        - KPP
1368        - OBCS
1369      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1370        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1371        line in data.pkg.
1372      + This package is disabled by default since it increases storage.
1373    
1374    
1375    o testscript: added -cleanup option
1376    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1377                 b) enable to filter 2D fields.
1378    
1379    checkpoint44e_pre,post
1380    o re-wrote convective adjustment to use pre-calculated weights
1381      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1382      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1383      Original calls to convect() still in place.
1384    
1385    chkpt44d_pre,post
1386    o added missing EXCLUDE_MONITOR flags
1387    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1388      (incompatible typ in MIN/MAX expressions caused problems
1389      on IBM SP3)
1390    o in genmake added variable MAKEDEPEND
1391      plus resetting for case SunOS
1392    o added timer_stats.c routine for IBM SP3
1393    o removed variables in dynamics
1394    !!! I forgot to create tag chkpt44d_pre !!!
1395    !!! But chkpt44d_pre = chkpt44c_post    !!!
1396    
1397    o real fresh water flux implemented with non-linear free-surface.
1398    
1399    chkpt44c_pre,post
1400    o few fix (mask in shap_s2, EmPmR in external_field_load,
1401      USE_NATURAL_BCS in solve_for_P);
1402    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1403    
1404    checkpoint44b_pre/_post
1405    o merge of relevant stuff from the ecco-branch:
1406      - genmake: removed $S64 overwrite for case SunOS
1407      - pkg/exf: update and corrections for field swapping and obcs
1408      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1409                  harmonized between ECCO and MITgcm
1410      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1411                      updated checkpointing_lev... lists for obcs
1412      - model/src: minor changes in forward_step, plot_field
1413                   added directive for divided adjoint in the_main_loop
1414      - pkg/mdsio: added mdsio_gl_slice
1415    
1416    o check parameters & config (chkpt44a_pre,post)
1417    o OBC and NonLin_FrSurf.
1418    
1419    checkpoint44
1420    o fix bug in mom_vi_del2uv
1421    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1422    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1423    o update AIM experiments (NCEP input files)
1424    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1425    o added some stuff for AD
1426    
1427    checkpoint43
1428    o added two new advection tests
1429    o added global 4x4 degree ocean test
1430    o added test of H&S94 with free surface on cube
1431    o some final mods for gradient check, adjoint,...
1432    
1433    checkpoint42
1434      Fixed AD-related problems:
1435    o Store directives up-to-date with re-arranged Adams-Bashforth
1436      (mainly thermodynamics.F)
1437    o New store directives for multi-dim. advection schemes
1438      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1439      * new common block and key passkey
1440      (mainly gad_advection.F)
1441    o Modified store directives for split of dynamics/thermodynamics
1442      for the case ALLOW_KPP
1443    o Cleaned argument list for timestep_tracer.F
1444    
1445    checkpoint41
1446    o re-formatted/added comments in prologues of key subroutines
1447      to work with protex
1448    
1449    checkpoint40
1450    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1451    o added FLT (floats) package from Arne along with demo. experiment
1452    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1453      implementation of forward-in-time forcing terms
1454    o more mods for non-linear free-surface including new variable
1455    o modified multi-dim method to work on cube
1456    o bug fix in KPP (from DM)
1457    
1458    checkpoint40pre9
1459    o added DST advection schemes
1460    o fix MPI bug on SGI's
1461    o modifications for non-linear free-surface
1462    o fixed conditionals for fixed flow/passive tracer only mode
1463    o added tension/strain form of stress tensor
1464    o changes to commenting of arguments for TAF/TAMC
1465    o added/updated many matlab scripts
1466    o added multi-dimensional advection method for tracers
1467      
1468    checkpoint40pre8
1469    o new package rw/
1470      Added method for dumping intermediate local arrays:
1471      mdsio_writetile - same as mdsio_writefield except works from inside
1472                        bi,bj loop
1473      mdsio_writelocal - same as mdsio_writetile except works for local
1474                         arrays
1475      write_local_r? - higher-level wrapper for mdsio_writelocal
1476      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1477      Example given at end of mom_vecinv.F that dumps some local arrays.
1478    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1479      control flux-form versus vector invariant code.
1480      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1481      or genmake -DISABLE ...
1482    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1483      (additional storing is now needed for case vecinv;
1484      currently nothing implemented to switch this storing off
1485      in case fluxform is used since no CPP flag available).
1486    
1487    checkpoint40pre7
1488    o bug fix in dynamics.F
1489      calc_viscosity called before k=1,Nr loop.
1490    o added some #ifdef's ALLOW_PASSIVE_TRACER
1491    o cleaned initialisations in ctrl_map_ini
1492      related to TAF
1493    
1494    checkpoint40pre6
1495    o split dynamics into thermodynamics & dynamics
1496    o corresponding split of calc_diffusivity into
1497      calc_diffusivity, calc_viscosity
1498      (kpp_calc_diff, kpp_calc_visc).
1499    o Added diffkr, kapgm to control variables
1500    o bug fix in gmredi_slope_limit for ldd97
1501    
1502    checkpoint40pre5
1503    o proper initialization of Adams-Bashforth time stepping
1504      + uses forward step for very first step of model (iter=0)
1505    o re-generated *all* output since almost all output is modified by this
1506      change (sorry but we've been putting this one off for about 2 years)
1507      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1508        *not* regenerated since they are already out of date and I don't
1509        want to create the impression that they are suddenly working.
1510    o removed KAP stuff for DEC's
1511    o modified/added many .cvsignore files in */code and */input
1512    o added new expt "solid-body.cs-32x32x1"
1513      + this uses an alternative form of ini_curvilinear_grid.F which
1514        is not necessarily any better than the current one...
1515    
1516    checkpoint40pre4
1517    o added re-initialisations of utrans,vtrans,rtrans in
1518      calc_common_factors which are crucial for TAF.
1519    o extended iMin,jMin range for calc_common_factors,
1520      calc_diffusivity
1521    o added option ALLOW_PASSIVE_TRACER
1522    o a few minor updates and fixes
1523    
1524    checkpoint40pre3
1525    o created calc_gtr1.F for gad package
1526    o split the_main_loop and re-introduced forward_step
1527    o some recomputations of nIter0 for TAMC
1528    
1529    checkpoint40pre2
1530    o Updated to latest branch of AJA, JMC
1531    o Added gradient check package
1532    o Added routines for passive tracer handling
1533    o Added carbon sequestration sensitivity experiment
1534    
1535    checkpoint39
1536     o Modifications and fixes to support TAMC
1537       (mainly missing or wrong directives)
1538     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1539       in addummy_in_stepping
1540     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1541     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1542     o Included following packages:
1543       cal: calendar
1544       exf: external forcing
1545       ecco: essential routines to control use of cal, exf
1546             (NB: this is not the full ECCO environment)
1547     o disabled some packages by default in genmake
1548    
1549    checkpoint38
1550     o see notes_c37_adj.txt
1551     o corrected wrong layer index in external_forcing_t
1552     o replaced the_main_loop/forward_step by the_main_loop
1553     o removed forceoutput from write_state
1554       (replaced criteria for initial/final state)
1555     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1556    
1557    checkpoint37
1558     o mdsio.F routine split and packaged in pkg/mdsio
1559       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1560        used unless genmake -disable=mdsio)
1561     o allow a more precise surface-geopotential gradient for the atmosphere
1562       taking into account the change in space of Alpha (=1/rho) at the surface.
1563     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1564       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1565     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1566       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1567       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1568     o Time-Average diagnostics defined as a pseudo package "timeave".
1569     o pickup files : old pickup (before c35) did not work with new code (c35
1570       and after) unless activating 2 commented lines in initialise-varia.
1571     o Non-Hydrostatic pickup file Pb fixed.
1572     o bug with Rigid-lid version (since c35) fixed.  
1573    
1574    checkpoint36
1575     o implement Crank-Nickelson barotropic time-stepping
1576     o recover Time-Average diagnostics
1577     o fix Pb in checkpoint (PR#19)
1578     o AIM become a standard package ; clean unused CPP_kees
1579    
1580    checkpoint35
1581     o subtantial rewrite of dynamics.f
1582     o allows staggered time-stepping
1583     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1584     o added bottom drag (linear + quadratic)
1585    
1586    checkpoint34
1587     o Modified exchange routines for correct reverse simulation.
1588     o Added verification output to comply with bug fix in impldiff.F
1589       as of c33 (exp2, natl_box).
1590     o Corrected store directives in dynamics.F
1591     o Corrected array boundaries in impldiff.F
1592     o Corrected array dimensions in gmredi.
1593       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1594     o Added routine GLOBAL_SUM_INT to global_sum.F
1595     o Added mdsio_gl.F for ECCO purposes.
1596    
1597    checkpoint33
1598     o Fixed bug in lower BC in impldiff.F
1599     o Fixed confusion about units of forcing arrays in FFIELDS.h
1600       namely Fu,Fv,Qnet,Qsw,EmPmR:
1601       - Removed verification/natl_box/code/external_fields_scale.F
1602         (did not differ from that in model/src)
1603       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1604         (see FFIELDS.h for description)
1605       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1606         kpp_calc.F and kpp_transport_t.F
1607       - Removed model/src/external_fields_scale.F and calls to it
1608       - verification/natl_box uses flux data with "atmospheric" sign so
1609         a special version of external_fields_load.F is used to
1610         change the data as it's read in. This way, the arrays
1611         have the right units and signs at all times tha a user could
1612         possibly use them.
1613     o Corrected genmake to delete a temporary file during configuration
1614    
1615    checkpoint32
1616     o Scaling of forcing fields moved from external_forcing.F to
1617       external_fields_scale.F, called directly after loading fields.
1618     o Surface relaxation terms added to surface tendency fields in
1619       extra subroutine.
1620     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1621       fields.
1622     o Changes in GMRedi to comply with packaging structure.
1623     o Modifications and bug fixes in KPP package.
1624     o Verification experiment for KPP added (verification/nat_box/)
1625    
1626    checkpoint31
1627     o Packages interface brought in line with defined standard
1628       -> new routines packages_...F
1629       -> changes in initialise_fixed.F, initialise_varia.F
1630       -> enables initialisation interface for ECCO package
1631     o Rescaling of external forcing fields immediately after read
1632       (removed from external_forcing.F)
1633       -> new: surface_fields_scale.F
1634       -> affects ini_foorcing.F, external_fields_load.F
1635     o Computation of surface tendencies before tendency updates.
1636       -> new: external_forcing_surf.F
1637     o Change of variable names useGMRedi, useKPP, useECCO
1638     o Further changes in dynamics.F, impldiff.F for TAMC
1639     o Tested for experiments 0, 2, 4.
1640       - not yet tested for GMRedi.
1641       - not yet tested for KPP.
1642    
1643    checkpoint30
1644     o Updates for OBCs
1645     o New experiment for test OBCs (internal_wave)
1646     o New output.txt in verification/exp4/results/
1647     o Updates for KPP: calculation of viscosity corrected, new variables
1648       kpp_dumpFreq and kpp_taveFreq
1649     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1650       and entry for T90 in genmake
1651    
1652    checkpoint29
1653     o packaged KPP and GM/Redi
1654    
1655    checkpoint28
1656     o Corrected initialization of hFacMin for difference vertical coordinates
1657     o Modified calculation of partial cell thickness to more robust algorithm
1658     o config_summary.F: replaced write_1D_... by write_0D_...
1659       read_write.F: added subroutines write_0D_...
1660     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1661       included some initialisations required for TAMC.
1662     o routine calc_isoslopes: modified sqrt computation to make it
1663       differentiable for zero argument.
1664     o routines dynamics, impldiff:
1665       included store directives and tape key computations required for TAMC.
1666     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1667    
1668    checkpoint27
1669     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1670       formulation works properly with variable resolution.
1671     o restructured the calling tree between the_model_main() and dynamics()
1672     o split initialise() into initialise_fixed() and initialise_varia()
1673     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1674       in new routine ini_psurf()
1675    
1676    checkpoint26
1677     o moved some #ifdef in optional routines to encompass everything
1678       except the argument declarations. This was using up some memory.
1679     o fixed macros like _ADT to work with both versions of Linux cpp
1680     o cleaned up some unused and uninitialized variables
1681       (helps when debugging with strict compile options)
1682     o split up CPP_EEOPTIONS.h into options and macros
1683       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1684     o patch for 2 processor JAM mode
1685    
1686    checkpoint25
1687     o updates for OBCs and NH
1688     o dramatically reduced memory usage
1689     o added "JAM" routines for use on Artic network
1690     o parameterization of convection by implicit vertical diffusion
1691     o added a diagnostic of convective index
1692     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1693       (this is was partly for OBCs and NH but also in anticipation of
1694        an explicit free-surface option)
1695     o initial state input files for U and V
1696    
1697    checkpoint24
1698     o Removed some spurious "REAL"s
1699     o Updated KPP to latest version from JPL
1700     o Added a COS(latitude) in horizontal viscosity
1701    
1702    checkpoint23
1703     o Added del^4 diffusion for salt and temperature
1704     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1705    
1706    checkpoint22
1707     o Made many small changes: implicit none, format(i5), etc...
1708     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1709    
1710    checkpoint21
1711     o Introduced new I/O package that supports direct-access records (mdsio.F)
1712     o Split-up mid-level I/O routines
1713     o Updated input data for experiments 0,1,2,4 and 5
1714     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1715    
1716    checkpoint20
1717     o Tidied up open-boundaries some more
1718     o Added non-hydrostatic code
1719     o Fixed some input data
1720     o Modified MPI start-up to work in "coupled" context.
1721    
1722    checkpoint19
1723     o Tidied up directory structure for verification experiments.
1724     o Added new code for open boundaries.
1725     o Corrected advective terms near boundaries.
1726     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1727     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1728     o Split default parameters out of ini_parms.F into set_defaults.F.
1729    
1730    checkpoint18
1731     o Further changes for optional code generation with
1732       CPP - ugh!
1733    
1734  checkpoint17  checkpoint17
1735   o Beginning to incorporating modularity   o Beginning to incorporating modularity
1736     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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