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revision 1.5 by cnh, Mon Jun 15 05:13:55 1998 UTC revision 1.330 by jmc, Fri Jul 16 01:38:50 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 change Qnet to always be the net heat flux, (+upward).
7      affects (truncation error) output of natl_box exp.: updated
8    o define the max number of passive tracers in PTRACERS_SIZE.h
9    o start to test mnc routinely in exp0
10    o add sea-ice loading (sIceLoad) as a new forcing field.
11    
12    checkpoint54b_post
13    o add testreport "-j JOBS" option for parallel builds (tested and pretty
14       impressive on Altix and Opteron systems)
15    o diagnostics can now write NetCDF files through the mnc package
16    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
17    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
18    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
19      affects (truncation error) output of lab_sea & natl_box exp.: updated
20    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
21    
22    checkpoint54a_post
23    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
24    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
25    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
26    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
27      + internal_wave (shift in writing cg2d_ini_res)
28    checkpoint54a_pre
29    
30    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
31      - modified verification/lab_sea and natl_box_adjoint accordingly
32    
33    checkpoint54
34    checkpoint53g_post
35    o prepare splitting of thermodynamics: store convect.counter in common block
36    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
37      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
38    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
39    o new parameter "nShapS": allow to treat differently S from T (nShapT)
40    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
41    o restore adjointability
42    
43    checkpoint53f_post
44    o modifications that affect AIM experiment results (update output.txt):
45      - no advection of S at top interface Nr (pkg/generic_advdiff)
46      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
47    o AIM pkg:
48      - include stability function into surf.Flux derivative relative to Tsurf
49      - calculate clear-sky radiation & surface temp. change (for diagnostics)
50    
51    checkpoint53e_post
52    o merged cylindrical coord configuration
53    o added rotating_tank experiment
54    checkpoint53e_pre
55    
56    checkpoint53d_post
57    o faulks upgraded: re-generate output.txt that have changed:
58       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
59    o Added Bryan and Lewis, 1979, vertical diffusivity profile
60    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
61    o added Sadourny discretization of Coriolis
62      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
63      - re-enabled use of omega3 (useAbsVorticity)
64    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
65      vector-invariant equations
66      - note: does *NOT* yet use same variable visc. for no-slip BC's.
67    o recoded the lateral boundary conditions for non-hydrostatic w, this time
68      hopefully without new bugs
69      - still to do: biharmonic friction for non-hydrostatic w
70    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
71    o regenerated output for global_ocean_ebm (using -ieee)
72    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
73      of mom_common/
74      - simple re-arrangement of instructions within computing loop
75    checkpoint53d_pre
76    
77    checkpoint53c_post
78    o new version of coupler for AIM+thSIce and Ocean models
79     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
80     - land: change Evaporation of snow
81     - aim with thSIce: fix bug in snow-precip.
82    o changes to calc_gw.F
83     - bug fix for w^2 term near the bottom boundary
84     - (hopefully) improve the lateral slip boundary condtions for use with
85        partial/looped cells
86      - because the bug fix changes two verification experiments anyway (exp5
87        and plume on slope), change the lateral boundary condition from half slip
88        to the value of no_slip_sides
89    o ebm package wasnt quite up to the parallel task. Fixed that.
90    o Adjoint of EBM package + verification
91      * TLM OK
92      * ADM not sufficient accuracy yet (needs further testing)
93    
94    checkpoint53b_post
95    o Commiting new energy balance model to repository
96      * package is pkg/ebm
97      * verif. is verification/global_ocean_ebm
98      * references are in ebm_driver.F
99    C      * X. Wang, P. Stone and J. Marotzke, 1999:
100    C        Global thermohaline circulation. Part I:
101    C        Sensitivity to atmospheric moisture transport.
102    C        J. Climate 12(1), 71-82
103    C      * X. Wang, P. Stone and J. Marotzke, 1999:
104    C        Global thermohaline circulation. Part II:
105    C        Sensitivity with interactive transport.
106    C        J. Climate 12(1), 83-91
107    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
108    C        Destabilization of the thermohaline circulation
109    C        by atmospheric eddy transports.
110    C        J. Climate 7(12), 1870-1882
111    o Will need long integration testing.
112    checkpoint53b_pre
113    
114    o created pkg/mom_common in preparation for variable viscosity code
115    o renamed and split ini_mnc_io
116    o pkg/land: only liquid water can diffuse or run-off
117    o AIM using land: soil wetness availability account for snow
118    o added printMapIncludesZeros to EEPARMS namelist
119    
120    checkpoint53a_post
121    o restore TAMC compatiility for exf_constants.h
122      (no usage of _d in .h)
123    o Additional storing in KPP in an attempt to fix
124      TAMC problem with adjoint of KPP code.
125      (no success...)
126      Identical code works fine with TAF.
127    o Fixed verification/natl_box_adjoint experiments.
128      Initial conditions for Experiments 4 and 5 are now
129      set to "SEAICE_initialHEFF=0", which is more reasonable,
130      and hence gives results closer to that of Experiment 2.
131      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
132    
133    checkpoint53
134    o stable checkpoint with up to date adjoint
135      TLM tests only run for 1st grdchk at the moment. Its unclear if
136      this is a code problem or a problem with resetting code for g_
137      variables that is being autogenerated wrong.
138      Otherwise:
139       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
140       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
141         are both still in chaos following their security messes.
142    
143    checkpoint52n_post
144    o various build (mostly genmake2) changes including:
145      - ability to build/run more easily within Cygwin and MacOS X
146      - more complicated Makefiles with a stronger dependence on Gnu Make
147    o pkg/seaice modifications
148      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
149        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
150        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
151      - changed proxy for geostrophic velocity and updated
152        verification/lab_sea/results/* accordingly
153      - removed ADI dynamic solver from pkg/seaice
154      - replaced all occurrences of 1/CSTICE or 1/CSUICE
155        they caused a segmentation fault under certain circumstances
156      - removed unused field WATR
157    o bug fix in exf-package:
158      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
159         now reflect that.
160    o small fixes in the cal-package:
161      - set reference date to first of January for the 'model'-calendar
162      - failing of cal_CheckDate in cal_FullDate now actually results in a
163        warning
164    o small modifications in exf-package to increase flexibility:
165      - change climtempfreeze from a constant to a runtime parameter that
166        is specified in data.exf_clim (default = -1.9)
167      - introduce runtime parameter windstressmax (default = 2.0) that is
168        specified in data.exf
169    o fix in pkg/thsice:
170      - update Evap (Tsf changes) to be consistent with Latent heat flux
171      - maintain snow precipitation unchanged (even if Tsf >=0).
172     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
173    
174    checkpoint52m_post
175    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
176      this does not change any of the results, because myIter=0 in swfrac always
177      lead to jwtype=2 (the default anyway), but the call makes little sense
178      as a default
179    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
180    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
181      atmospheric model (AIM) to use it ; add a "slab ocean" component.
182    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
183    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
184    o extending useSingleCpuIO option to work with new exch2 I/O format
185      - old-style, missing-tile I/O is still accessible by defining CPP
186        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
187    o monitor package can write to NetCDF files and/or STDOUT
188    o fix re-definition bug in MNC_GRID_INIT_ALL()
189    o doc/api_reference added
190      - a framework for building an API Reference Manual using all
191        the "protex" comments embedded in the code
192      - see pkg/generic_advdiff, pkg/mnc for examples
193    o MNC:
194      - make myThid the last argument for all subroutines
195      - new default for the grid files: NO halos
196      - add useMNC and other run-time flags
197      - separate per-file-group handling of the unlimited dimension
198      - early initialization of MNC w/ flags read at the eeboot stage
199        and lookup tables set in initialize_fixed
200      - write all MNC output to a freshly-created directory
201    o thermodynamics sea-ice (thsice) is now tested with testreport.
202    o test exp. advect_cs: use the standard cs32 grid ; update output.
203    o Added functionality to grdchk:
204      pick global i,j,k position (or nearest wet) where to perform check.
205    
206    checkpoint52l_post
207    o new land formulation:
208      a) use ground enthalpy as prognostic variable to ensure exact
209         energy conservation.
210      b) account for water temperature and for latent heat of freezing
211         in all processes (rain, run-off, ground storage)
212      c) compute surface and ground temperature implicitly.
213    o aim_v23 modification for new land model:
214      a) Treat separately land / ocean / sea-ice surface fluxes
215         to allow implicit computation of land & sea-ice surface temp.
216      b) add snow precipitation.
217    checkpoint52l_pre
218    
219    o fix problem (when 1 tile is empty) in min/max monitor.
220    o fix bug in timeAve (u,vZetatave in common block)
221    o no restoring terms under ice for pkg/seaice
222    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
223    o bug fix for pkg/seaice pickups
224    o change MNC call locations and add coordinate attributes
225    o mask vorticity at the corner ; affects global_ocean.cs output
226    o fix ini_curvilinear_grid ; test CS experiments with mpi
227    o aim.5l_cs: modify sea-ice fraction input file ; update output
228    o exf: Adding simple range check routine for exf fields after read
229    
230    checkpoint52k_post
231    o removed top-level directory "diags"
232      - we migrated these functions to pkg/timeave a long time ago
233    o fixed bug introduced in pkg/monitor
234    o accuracy ctrlprec = 32 insuffient for gradient checks using
235      averaged fields (I/O via cost_averages)
236      -> use ctrl.h in active_file*.F to control I/O precision.
237    o paramter list of CALL ADTHE_MAIN_LOOP
238    o added initial do_the_model_io to ecco
239    o set all ...Freq to zero after cost_final
240      taveFreq, dumpFreq, pChkptFreq
241    o MAIN and ECCO differentiability restored
242    
243    checkpoint52j_post
244    o fix nchklev in tamc.h for global_ocean...
245    o Bringing flow and store directives up-to-date
246    o Really weird thing!
247      call do_the_model_io from the_main_loop with parameters
248      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
249      TAF places a faulty re-call of initialise_varia
250      after cost_final call which should not be there!
251    checkpoint52j_pre
252    
253    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
254      error messages
255    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
256    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
257      debug output
258    o modfied mdsio_writefield.F to handle non-global files under exch2
259    o update AIM Cubed-Sphere exp (aim.5l_cs):
260      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
261    o update AIM Equatorial Channel exp:
262      use standard aim_v23 pkg and change the SST fields to be more realistic.
263    o globalFile now works with exch2
264    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
265      mon_vort3.F to make exch2 friendly with >1 tile per cube face
266    o limit timeave output for hi-res integrations
267    
268    checkpoint52i_post
269    o removed CPP_EEOPTIONS.h from verification/*/code
270    o updated the tiling for global_ocean_pressure
271    checkpoint52i_pre
272    
273    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
274      the old pkg/aim).
275    
276    checkpoint52h_pre
277    o shortened offending lines in exch2_send_rx?.template
278    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
279    o genmake2: add build & execute test for NetCDF code
280    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
281      old grid files, moved CPP_EEMACROS.h to pkg/exch2
282    o added useSingleCPUIO flag to monitor.F and mon_out.F
283    o added temporary hack for sea-ice dynamics on the cube:
284      metric terms are ignored and it is assumed that
285      there is no sea-ice on cube faces 1, 2, 4, and 5.
286    
287    checkpoint52f_post
288    o added exch2 cube routines to pkg/exch2
289    o modified hs94.cs-32x32x5 to use it
290    o added new grid files to hs94.cs-32x32x5
291    checkpoint52f_pre
292    
293    checkpoint52e_post
294    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
295      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
296    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
297      to work with implicit vertical advection and AB ;
298    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
299    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
300     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
301    checkpoint52e_pre
302    
303    o fix bug in impldiff when Nr=1 or Nr=2.
304    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
305    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
306    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
307      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
308    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
309    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
310    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
311    
312    checkpoint52d_post
313    o re-tiled many expts to allow comparison in multi-processor mode
314      - updated output accordingly
315      - changed hs94.128x64x5 to use intial T from file rather than use the
316        random number generator
317    o add infrastructure in model routines for fizhi and gridalt packages
318    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
319    o changes to permit hi-res, cubed-sphere, configuration
320      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
321      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
322      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
323        of surface winds for the cube
324      (A verification experiment, based on global_ocean.cs32x15, but with
325       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
326       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
327       complete with example surface forcing files and matlab scripts to look
328       at the output and compare it with that of global_ocean.cs32x15.)
329    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
330       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
331       to conform to the common rule.
332    o check-in the first version of the coupler + interfaces for multi-components
333       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
334       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
335       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
336       - ocean and atmos. share the same horizontal grid (no interpolation).
337       - exchanges between component and coupler is done in forward_step
338    o new verification experiment, cpl_aim+ocn:
339       coupled ocean - AIM atmosphere on cs32 grid.
340    
341    checkpoint52d_pre
342    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
343    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
344    
345    checkpoint52c_post
346    o Fixing OPTIONS files for use of exf:
347      - ALLOW_ECCO not needed
348      - ECCO_CPPOPTIONS.h should not be included from
349        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
350        as has been the case in the past
351      - All cal/exf related options are currently set in
352        single header file. Should remain so until we
353        agree on a consistent new policy.
354    o Removed all CPP options for cal package.
355      cal has no more CPP options.
356    o modified STOREs in GAD_ADVECTION
357    o corrected key comp. for passkey
358    
359    checkpoint52b_post
360    o new version: "thsice" of thermodynamic sea-ice pkg:
361     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
362     - modify fluxes but do not change theta directly;
363     - light cleaning of bulk_force pkg (still needed with thsice).
364     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
365       + output_thsice.txt to test thsice & bulk_force pkgs.
366    o put back grid & coriolis monitor output.
367    checkpoint52b_pre
368    
369    o call "do_the_model_io" at the beginning (=> dump initial state)
370    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
371    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
372      (need info on NUMBER_OF_PTRACERS)
373    o missing PTRACERS headers in some routines
374    o default tamc.h in pkg/autodiff supposed to crash
375      to ensure proper customization
376    
377    checkpoint52a_post
378    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
379      - moved surfaceTendencyTice from pkg/seaice to main code
380      - subroutine FREEZE_SURFACE now limits only surface temperature
381        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
382        => new output.txt for global_ocean.cs32x15 & global_with_exf
383      - keep the old version of FREEZE for backward compatibility;
384        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
385      - corresponding modifs for TAF directives
386    o added surface flux output variables to TIMEAVE_STATVARS
387    o time-averaged output for pkg/ptracers
388    o fix problem with ECCO-related divided adjoint
389      snapshot file was missing some ad-variables,
390      but no warning issued by TAF
391    
392    checkpoint52a_pre
393    o some bug fixes for #undef REAL4_IS_SLOW
394    
395    checkpoint52 = ecco_c52_e35
396    o after testing adjoints of checkpoint51u_post
397    
398    checkpoint51u_post
399    o this is the post-merge tag of the ecco-branch
400      (needs another clean checkout and re-testing)
401    o various natl_box_adjoint configs and results
402      but no input fields
403    o obcs adjoint not yet merged!
404    o adding ECCO global 1x1 and 2x2 degree configs
405    o updated/extended some store directives for seaice
406    o pkg/ecco now containes ecco-specific part of cost function
407    o top level routines the_main_loop, forward_step
408      supersede those in model/src/
409      previous input data.cost now in data.ecco
410      (new namelist ecco_cost_nml)
411    o in ctrl/ cleaned some cross-dependencies and updated CPP options
412    
413    checkpoint51t_post
414    o this is the pre-merge tag of the ecco-branch
415    
416    checkpoint51s_post
417    o cleanup: removed various obsolete #define-s
418    o pkg/grdchk
419      - renamed 'ph-grd 3' to 'grad-res'
420      - merged from ecco-branch
421        (remaining bug fixes for obcs gradient checks)
422      - additional high-precision output for testreport
423        (grep for 'precision_grdchk_result')
424    
425    checkpoint51r_post
426    o cleaned up or removed CPP_OPTIONS.h files
427    o updated results for some of the tests to reflect the new
428      optfiles (-ieee: -O0 instead of -O3)
429    
430    checkpoint51q_post
431    o cd_code:
432      - moved cd_scheme.F -> cd_code_scheme.F
433      - separate read_checkpoint from cd_code_ini_vars.F
434      - separated cd_code part from write_checkpoint
435      - updated AD_SOURCE, generated .flow
436      - added CD_CODE_VARS.h to the_main_loop
437      - Moving cd_code specific store dir.s to pkg/cd_code
438    o ctrl package totally restructured
439      - pack/unpack now optional and decoupled from
440        xx_/adxx_ I/O
441      - ctrl_pack/unpack cleaned
442        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
443      - confined inclusion of AD_CONFIG.h to where necessary.
444    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
445    
446    checkpoint51p_post
447    o create initial cd_code package
448      - WARNING: the initialization of fields within packages
449        is broken because INI_FIELDS (where READ_CHECKPOINT is
450        called) is called *before* PACKAGES_INIT_VARIABLES.
451        This seems to be backwards since
452        1) its important to initially zero the entire field including
453           the "halo" region
454        2) zeroing needs to be done *before* reading pickup info
455           and the pickup call might or might not happen in any
456           particular run
457      - this needs an overhaul for R2
458    o cleanup verification/*/code/GMREDI_OPTIONS.h
459    o cleanup testreport
460    
461    checkpoint51o_post
462    o bringing AD-related verif's up to date with genmake2
463      - carbon/
464      - global_ocean.90x40x15/
465      - hs.94.1x64x5/
466      - (front_relax/ )
467    o (more) consistent directory structure for AD-related verif.'s
468    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
469    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
470    o bug fix in find_alpha.F for MDJWF:
471      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
472        change rho -> rho-rhoConst
473      - replace call find_rho to find_rhonum
474    o initialisation of rFlx extended to full array (required by TAF)
475      and shifted to thermodynamics
476    o removed PTRACERS.h in ptracers routine
477    o added surfacetendencyPtr to S/R parameter list pracers_forcing
478    o Correcting initialisations for fVerU, fVerV.
479    o helping TAF to recognize dependency on kUp for
480      fVerU, fVerV
481    o Replacing delZ by delR in pkg/ctrl/
482    checkpoint51o_pre
483    
484    o undid all of cp51 pending some cleanups and discussion
485    o added the [#include "AD_CONFIG.h"] statement to all files that need
486       it for adjoint/tl #defines
487     o re-worked the build logic in genmake2 to support AD_CONFIG.h
488     o removed tools/genmake since it no longer works
489    
490    checkpoint51n_post
491    o modifications to make FREEZE flux visible to pkg/kpp
492      - moved surfaceTendencyTice from pkg/seaice to main code
493      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
494      - subroutine FREEZE now limits only surface temperature
495        (this means new output.txt for global_ocean.90x40x15,
496         global_ocean.cs32x15, and global_with_exf)
497    o added surface flux output variables to TIMEAVE_STATVARS
498    
499    checkpoint51n_pre
500    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
501    o added [#include "AD_CONFIG.h"] to all files that use the following
502      defines:
503      - ALLOW_ADJOINT_RUN
504      - ALLOW_TANGENTLINEAR_RUN
505      - ALLOW_ECCO_OPTIMIZATION
506    
507    checkpoint51m_post
508    o incorporating changes to get TAMC/TAF working in genmake2
509      - added new TAMC/TAF targets to the Makefile
510      - various cleanups related to package handling
511      - these changes should have no impact on the forward model
512    
513    checkpoint51l_post
514    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
515     - faster algorithm for cal_addtime.F
516     - higher precision arithmetic, where needed
517     - pkg/exf *startdate variables changed from calendar date to
518       model integration time
519    
520    checkpoint51l_pre
521    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
522    o enable to apply restoring on S & T only in a latitude band.
523    o update output (external_forcing_surf modif. change truncation errors)
524       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
525    
526    checkpoint51k_post
527    o change default to: useNHMTerms=.FALSE.
528     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
529       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
530     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
531        exp1, ideal_2D_oce
532     - change data file of oceanic exp (leave the results unchanged for now)
533       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
534    o set gravitySign automatically according to the vertical coordinate used
535      (and change sign: back to "logical" value: +1 when R increases downward)
536    o added an include barrier to the default CPP_OPTIONS.h and
537      removed the #include "PACKAGES_CONFIG.h" from it
538    o fix a bug in mom_fluxform (from chk51j_post)
539    
540    checkpoint51j_post
541    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
542    o adjusted some flow directives (dynamics, thermodynamics)
543    o added cubed-sphere case to test cost function
544    o heckpoint_lev?_directives.h now include
545      pkg-specific directives, whenever those are enabled.
546    o Moving pkg-specific flow directives to corresponding pkg
547      Moving pkg-specific differentiation list to corresponding pkg
548      Moving pkg-specific checkpoint-lev storing to corresponding pkg
549      ---> conventions are
550           - pkg_ad.flow
551           - pkg_ad_diff.list
552           - pkg_ad_check_lev?_dir.h
553    
554    checkpoint51i_post
555    o merge of the branch-genmake2
556      - knowingly breaks the older genmake
557      - automatic generation of all ALLOW_${PKG_NAME} defines
558      - new testreport supersedes older testscript
559    o large number of package inclusion and header cleanups
560    checkpoint51i_pre
561    
562    o new output for adjoin of global ocean vector invariant
563    o fix for checkpoint of thermodynamic seaice and bulk_force
564    o Steph gchem various cleanups
565    
566    checkpoint 51h_pre
567    o fixed some single quotes
568    o modify gchem pkg to be more versatile
569    o modifications to clean up dic pkg
570    o add pkg/cfc
571    
572    checkpoint51g_post
573    o provide links for ARPACK and ADM*TLM
574    o start removing verification/vero/
575    o update AD-related stuff
576      (in particular some IF-statements in model/src/ routines)
577    o adding to verification/global_ocean.90x40x15/ adjoint of
578      vector invariant setup
579    
580    checkpoint51f_post
581    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
582    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
583      of tracer Green's fucntions for ocean inversion project.
584    
585    checkpoint51f_pre
586    o Added on-the-fly spatial interpolation capability
587        "USE_EXF_INTERPOLATION" to pkg/exf.
588      - This is a temporary Cartesian-grid hack until
589        the super-duper ESMF coupler becomes available.
590      - See verification/global_with_exf/README for usage example.
591      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
592        flags and modified pkg/seaice accordingly.
593    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
594        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
595        non-local transport term.
596    
597    checkpoint51e_post
598    o pkg/mom_vecinv:
599      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
600      - add time-ave diagnostic of vorticity advection.
601    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
602    o atmospheric geopotential: - include water vapor effect;
603                                - use p^kappa in p* scaling.
604    o land pkg: read initial state from files.
605    o AIM : add stratospheric drag in the upper level
606    
607    checkpoint51d_post
608    o change function ILNBLNK (=> last non-blank char.) to return zero
609      (instead of the string length) when the string. char is empty
610    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
611    o modif's to restore TAMC compatibility
612      - avoid "_d" constructs in PARAMETER declarations
613      - avoid interrupting lines by comment lines
614    o Use cluster local disks for purely local I/O
615      vs. globally visible disks needed for ctrl stuff
616      (merged from ecco-branch)
617      - new active_file_loc... and mdsio_..._loc routines
618      - affected packages: autodiff, ctrl, grdchk, mdsio
619    
620    checkpoint51c_post
621    o introducing integer flag debugLevel
622      - debLevZero: suppress all output
623      - debLevA: standard
624      - debLevB: equivalent to current debugMode=.TRUE.
625    o introducing pathname variable mdsioLocalDir for mdsio
626      that can be specified at runtime
627      (relevant for cluster I/O to local disk)
628    `
629    >>>checkpoint51b_post
630    adjoint of ptracers
631    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
632    o extended state in checkpoint_lev?, etc.
633    o alternative ctrl/cost with tr1 or ptracer
634    o new comlev1_bibj_ptracers
635    o new ptracers.flow
636    o made ptracers_forcing same as external_forcing_s
637    o added verification for adjoint with ptracers
638      - adm. grdchk fail so far
639      - tlm. grdchk OK
640      - checked tapelev/comlev recomputations: OK
641    <<<checkpoint51b_pre
642    
643    checkpoint51a_post
644    o added code for biogeochemistry package
645      - new pkgs: dic, gchem
646      - new subroutine in ptracers
647    o modify code for biogeo packages
648      - in model/src and pkg/ptracers
649    
650    checkpoint51
651    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
652      - autodiff, ctrl, exf, grdchk, seaice
653      kept separate packages
654      - cost, ecco, obcs
655    o updating verification/internal_wave, verification/lab_sea
656      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
657    
658    checkpoint50i_post
659    o Preparing next differentiable checkpoint and sync
660      of MAIN vs. ecco-branch
661      - 1st step: this one is differentiable
662      - 2nd step: next(! not this) checkpoint will have updated packages
663                  from ecco-branch)
664    
665    checkpoint50h_post
666    o new package "land": provide surface BC for AIM.
667    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
668    o AIM: use true log-P extrapolation for near surface temp (= as in
669        F.Molteni paper) ; update aim.5l_cs output.
670    o New variable in PARM03 for more flexible pickups
671    o somewhat cleaned package initialisation sequence for
672      ctrl/ cost/ ecco/ in packages_... routines
673    
674    checkpoint50g_post
675    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
676      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
677      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
678        made the default because of faster convergence than ADI
679    
680    checkpoint50f_post
681    o exf totally restructured
682      - replaced all exf_set_ routines by one generic exf_set_gen.F
683        and made sure it's still differentiable
684      - split exf_getffields.F into new exf_bulkformulae.F
685      - exf_inscal_/exf_outscal_ suffixes consistent with field names
686      - updated adjoint/makefile and relevant verif. accordingly
687    
688    checkpoint50f_pre
689     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
690          + change Evap over land. (update aim.5l_cs output)
691     o added missing .cvsignores and made uniform across expts
692     o changed configuration of tidal_basin_2d expt
693     o added pkg/debug functions for tracing code in fatal crashes
694     o tidied pkg/monitor to use MONITOR_OPTIONS.h
695     o new fn in pkg/monitor to stop model if solution grows too big
696     o removed lots of single quotes from comments
697    
698    checkpoint50e_post
699    o make KPP work with PTRACERS
700     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
701       nearly a copy of kpp_transport_s
702     - there is no analogue to SurfaceTendencyS, so I have to use
703       gPtr(of the surface layer) instead
704    o add a new platform SunFire+mpi (SunFire 15000) to genmake
705    checkpoint50e_pre
706    
707    checkpoint50d_post
708    o change kpp output from multiple-record state files to single-record state
709      files analogous to write_state.F
710    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
711      analogous to the cg2d-related output.
712    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
713      so that writing to internal file fn (with length 512) fails.
714    checkpoint50d_pre
715    
716    checkpoint50c_post
717    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
718    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
719    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
720    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
721    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
722    
723    checkpoint50c_pre
724    Merging from release1_p13:
725    o bug fix for pkg/seaice dynamic solver
726    o Added SEAICE_initialHEFF to pkg/seaice
727    
728    checkpoint50b_post
729    o store u*,v* in gU,V instead of in guNm1,gvNm1
730    o in order to put the momForcing out of the Adams-Bashforth:
731      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
732      to timestep.F
733    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
734    o re-generate output for highly sensitive test-exp:
735       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
736    
737    checkpoint50b_pre
738    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
739    o corrected CPP option mismatch in exf_Bulk... functions for case
740      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
741    
742    checkpoint50a_post
743    o Bug fix for merging between c50 and KPP.
744      ikey was passed from thermodynamics to kpp_calc via
745      common block rather than being recomputed in kpp_calc,
746      in contradiction with new key itdkey.
747      New key ikppkey created, and tamc.h headers updated.
748    
749    checkpoint50
750    - 2nd step of merge with ecco-branch:
751      merge changes in ecco-branch back into main trunk
752    - bug fix in find_alpha
753    - more storing in gmredi_calc_tensor.F, kpp_routines.F
754    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
755    - merged some sliced AD support routines
756    
757    checkpoint49
758    merged from ecco-branch:
759    o exf:
760      - Enable initialisation of forcing fields to constant
761        (runtime) values.
762      - in exf_getffields.F
763        Reduce i-/j-loop to interior domain, discarding overlaps.
764        That also fixes wrong TAF-key computations for key_1, key_2
765        with bulf formulae.
766      - exf_init.F modify #ifdef for exf_init_evap
767      - exf_getffieldrec.F, ctrl_getrec.F
768        The following INT-usages are not safe:
769          fldsecs  = int(fldsecs/fldperiod)*fldperiod
770          fldcount = int(fldsecs/fldperiod) + 1
771        and were modified.
772    o autodiff: checkpoint_lev...
773      - updated storing for bulk formulae (some arrays were missing)
774      - added state for seaice package
775      - synchronized with main branch
776    o DIVA:
777      Modif.s in
778      - the_main_loop.F
779      - the_model_main.F
780      and added cost_final_restore.F cost_final_store.F
781      o With these changes, it is possible to fully separate
782        the first forward run to compute the cost function (mdthe_main_loop)
783        and adjoint runs over individual DIVA intervals (adthe_main_loop)
784        into separate model executions.
785        This enables better tuning of DIVA to given queue sizes.
786      o Loss of cost function value in consecutive DIVA runs is
787        fixed by storing to 'costfinal' file.
788      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
789        beginning/end of adjoint integration is accounted for.
790      The current changes apply to TAF-1.4.26.
791      TAF has one remaining bug, requiring one manual change
792      (see MITgcm manual).
793    o cal: synchronized between MAIN and ecco-branch
794    
795    checkpoint48i_post
796    o Changes to restore differentiability of code w.r.t. previous tag
797      (mostly adding new routines to make list and replacing
798      pressure by totPhiHyd).
799    o Updated and merged grdchk package
800      - has both ADM and TLM checks
801      - works for single- and multi-proc.
802      - output cleaned
803      - worked successfully for parallel DIVA
804    o genmake:
805      - Adding -platform=SP4
806      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
807    o Modif. for DIVA:
808      ctrl_unpack should not be called in intermediate DIVA interval.
809      (similar thing would apply for active files such as
810      tbar, sbar, psbar, which should not be reinitialised;
811      only relevant for ecco-branch)
812    
813    checkpoint48h_post
814    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
815    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
816    o Added SEAICE_initialHEFF to pkg/seaice
817    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
818    
819    checkpoint48g_post
820    --- EOS:
821    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
822      store total Potential in totPhyHyd for diagnostics & EOS.
823    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
824    --- Pressure/geopotential gradient:
825    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
826    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
827      ( changes results of global_ocean_pressure )
828    o NLFS + z-coord.: add eta*Rho' contribution.
829    o accurate phiHyd when using interface-W at the middle between 2 centers
830     ( changes results of ideal_2D_oce )
831    o includes r* 2nd term in potential gradient.
832    
833    checkpoint48f_post
834    Merging from release1_p12:
835    o Modifications for using pkg/exf with pkg/seaice
836      - improved description of the various forcing configurations
837      - added basic radiation bulk formulae to pkg/exf
838      - units/sign fix for evap computation in exf_getffields.F
839      - updated verification/global_with_exf/results/output.txt
840    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
841      (SBO) core products, including oceanic mass, center-of-mass,
842      angular, and bottom pressure (see pkg/sbo/README.sbo).
843    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
844      to avoid negative values in shallow regions.
845      - updated verification/natl_box/results/output.txt
846      - updated verification/lab_sea/results/output.txt
847    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
848    o Added useSingleCpuIO option (see PARAMS.h).
849    o Updated useSingleCpuIO option in mdsio_writefield.F to
850      work with multi-field files, e.g., for single-file pickup.
851    o pkg/seaice:
852      - bug fix in growth.F: QNET for no shortwave case
853      - added HeffFile for specifying initial sea-ice thickness
854      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
855    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
856      kpp_transport_t.F, forward_step.F, and the_main_loop.F
857    o pkg/seaice:
858      - adjoint-friendly modifications
859      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
860    
861    checkpoint48e_post
862    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
863    o dynamics: change definition of computational domain & adapt mom_fluxform
864      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
865    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
866        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
867        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
868        global_ocean.90x40x15 global_with_exf global_ocean_pressure
869        inverted_barometer solid-body.cs-32x32x1
870      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
871    
872    checkpoint48d_post
873    o in preparation for r*:
874     a) use pre-computed gradient of hydrostatic potential:
875        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
876     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
877        => affects results of glob_oce_pressure (different truncation error)  
878      update output.txt of ideal_2D_oce & global_ocean_pressure
879    
880    checkpoint48d_pre
881    o in preparation for r*:
882      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
883      pass the 2 comp. of the grad. as arguments to momentum S/R.
884      but for the moment, only used if it does not change the results.
885    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
886    
887    checkpoint48c_post
888    Modifications in treatment of initial flux forcing controls
889    to avoid extra storing of flux fields.
890    
891    checkpoint48c_pre
892    o Added tidal_basin_2d experiment (currently 1D!)
893    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
894    
895    checkpoint48b_post
896    o r* coordinate added in #ifdef NONLIN_FRSURF block.
897     (modification to pressure gradient not yet implemented)
898    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
899      (for U & V) that are used for vertical advection of momentum.
900    
901    checkpoint48a_post
902    o In preparation for r*, use temp. array to compute vertical transport
903       in flux-form momentum pkg. => change results of few test-exp.
904      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
905                        lab_sea, natl_box & plume_on_slope
906    
907    checkpoint48
908    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
909    
910    checkpoint47j_post
911    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
912    o moved adexch from forward_step to addummy_in_stepping
913    o added exch in ctrl_map_...
914    o aveFreq.=0. at end of cost_final to avoid overwrite in
915      reverse checkpointing loop
916    o Yet more changes in gmredi:
917      * adgmredi_calc_tensor
918        avoiding all recomputation of gmredi_slope_limit
919      * adgmredi_x/y/rtransport
920        added flag for excessive storing to avoid recomp. of
921        u/v/rtans, dTdx/y/z
922        -> this is not really necessary and very memory-consuming
923      * adgmredi_slope_psi:
924        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
925      * gmredi_slope_limit
926        re-activated full calculation of taperfct for case 'ac02'
927    o updating verification/ adjoints of carbon, global_ocean.90x40x15
928    
929    checkpoint47i_post
930    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
931    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
932      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
933    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
934    o gmredi: fix few bugs.
935    
936    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
937    This will be a good checkpoint to plug into the ecco-branch.
938    o few modif.'s to get latest version adjointed
939      (mainly kick out code in ini_linear_phisurf)
940    o modif's to run adjoint with exactConserv
941    o case GM_BOLUS_ADVEC should be cleaned
942      S/R gmredi_slope_psi should be cleaned
943    o verification/carbon now has exactConserv=.TRUE.
944    
945    checkpoint47g_post
946    o time-average AIM output: becomes independent from statvars time-average
947      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
948    o After TAF bug fix:
949      Tested adjoint of gmredi package.
950      Tests were done with checkpoint47 rather than with latest
951      checkpoint47f_post since the latter is broken for the adjoint
952      verification/carbon/ contains both ADM and TLM gradient checks.
953    Here they are, before they get changed/lost/stolen.
954    Mostly modif.'s to fix numerical sensitivities.
955    Gradient checks OK for
956    - GM_taper_scheme:
957      * clipping
958      * ac02
959      * linear
960      * glw91
961      * dm95
962      * ldd97
963    - GMREDI_OPTIONS:
964      * GM_VISBECK_VARIABLE_K
965      * GM_NON_UNITY_DIAGONAL
966      * GM_EXTRA_DIAGONAL
967      * GM_BOLUS_ADVEC
968    in conjunction with data.gmredi parameters to be checked in
969    in a few minutes under verification/carbon/code/
970    
971    checkpoint47f_post
972    Merging from release1_p10:
973    o modifications for using pkg/exf with pkg/seaice
974      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
975        and SEAICE_EXTERNAL_FLUXES
976      - pkg/exf CPP options EXF_READ_EVAP and
977        EXF_NO_BULK_COMPUTATIONS
978      - usage examples are Experiments 8 and 9 in
979        verification/lab_sea/README
980      - verification/lab_sea default experiment now uses
981        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
982    
983    checkpoint47e_post
984    o created a tag prior to creating a branch
985    
986    checkpoint47d_post
987    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
988      at the bottom boundary had an erroneous half slip boundary condition
989    o added bottom drag and no slip boundary condition capabilities to
990      oceanic pressure coordinates code
991    o added new verification experiment global_ocean_pressure, this experiment is
992      also described in the tutorial section of the manual
993    checkpoint47d_pre
994    
995    checkpoint47c_post
996    o Added a verification experiment for a global cubed-sphere ocean run
997      -  verification/global_ocean.cubed32x32x30
998      -  uses pkg/therm_seaice and pkg/bulk_forcing
999    
1000    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1001    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1002      when using P-coordinate; only implemented for atmospheric config.
1003    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1004      NOTES: requires option NONLIN_FRSURF to be "#define".
1005    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1006    
1007    checkpoint47b_post
1008    Merging from release1_p9:
1009    o pkg/seaice
1010      - removed GOTO's and added taf directives
1011      - double precision constants to reduce the g77 (Linux)
1012        to F77 (SGI) differences reported in release1_p8
1013    o tools/genmake
1014      - added SGI options
1015    o verification/testscript
1016      - updated to that of checkpoint47a_post
1017    o verification/global_ocean.90x40x15/input/eedata
1018      - modified for SGI f77 compatibility
1019    o verification/lab_sea
1020      - added description of sea-ice model
1021      - added missing matlab routines
1022      - added test of thermodynamics parallelization
1023    
1024    checkpoint47a_post
1025    o new pkg: aim_v23
1026     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1027       for now, keep the same surface forcing as before.
1028     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1029     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1030     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1031    o add diagnostic of surface correction term in monitor output
1032    
1033    o bulk_force and therm_seaice
1034    - Two packages:  bulk_force (Bulk forcing)
1035      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1036    - Earlier integration from Stephaine Dutkiewicz
1037      and Patrick Heimbach.
1038    - Two ifdef statements for compile time,
1039       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1040    
1041    checkpoint47
1042    differentiable version of checkpoint46n_post
1043    o bug fix in quasihydrostaticterms
1044    o * "clean" adjoint code (in terms of extensive recomputations)
1045        can now be obtained for all GMREDI options (i.e. for
1046        - GM_VISBECK_VARIABLE_K
1047        - GM_NON_UNITY_DIAGONAL
1048        - GM_EXTRA_DIAGONAL
1049        - GM_BOLUS_ADVEC )
1050      * However, wrong gradient check problem remains unsolved.
1051      * New CPP options have been introduced for different
1052        tapering schemes
1053    o external_fields_load now part of differentiation list
1054    o pressure needs multiple storing;
1055      would be nice to have store_pressure at beginning or
1056      end of forward_step, e.g. by having phiHyd global (5-dim.)
1057      (NB: pressure is needed for certain cases in find_rho,
1058      which is also invoked through convective_adjustment).
1059    o recomputations in find_rho for cases
1060     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1061    o #define ATMOSPHERIC_LOADING should be differentiable
1062    o ini_forcing shifted to begining of initialise_varia
1063    o Incorporating QNVS line search routines into MITgcm
1064      (this is separate code, and therefore not under pkg)
1065      lsopt/, optim/
1066    o Updated verification/carbon/
1067      - #define GM_VISBECK_VARIABLE_K
1068      - GM_taper_scheme    = 'ldd97'    
1069    
1070    checkpoint46n_post
1071    Merging from release1_p8:
1072    o verification/natl_box:
1073      updating new external_fields_load routine
1074    o New package: pkg/seaice
1075      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1076      The sea-ice code is based on Hibler (1979-1980).
1077      Two sea-ice dynamic solvers, ADI and LSR, are included.
1078      In addition to computing prognostic sea-ice variables and diagnosing
1079      the forcing/external data fields that drive the ocean model,
1080      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1081      The implied surface heat flux is then stored in variable
1082      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1083      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1084      non-local transport term.  Because this call precedes model
1085      thermodynamics, temperature under sea-ice may not be "exactly" at
1086      the freezing point by the time theta is dumped or time-averaged.
1087      N.B.: fairly large differences in accuracy occur across
1088            different platforms/compilers; comparison between
1089            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1090            generated output gives:
1091       T           S           U           V
1092      C D M    c        m  s        m  s        m  s        m  s
1093      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1094      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1095      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1096    
1097      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1098    o GAD:
1099      - generated new common blocks to account for call of
1100        same gad routines with differing traceridentities
1101        (needed to modify tracerIdentity indices in GAD.h)
1102      - generated separate common blocks for case useCubedSphereExchange
1103        (Department of Futurology)
1104      - parameter lists to gmredi_?transport: added tracerIdentity
1105      - added new key indices to tamc.h
1106    o external_fields_load:
1107      - added this routine to TAF list
1108      - needed to make some common blocks global and additional storing
1109        along the same lines as exf package (checkpoint_lev?_directives.h)
1110    o exf:
1111      updated external forcing package
1112      - bug fixes carried over from ecco-branch
1113        (missing OBCS_OPTIONS.h in two routines)
1114      - enable easy to use "no forcing".
1115      - added exf I/O for atmospheric loading
1116      - added exf I/O for runoff data
1117      - transfered scaling between exf <-> MITgcm to exf namelist
1118    o Adding new verification experiment global_with_exf.
1119      This verification experiment is almost identical to the
1120      global_ocean.90x40x15 experiment, except that it uses
1121      the exf (and cal) package instead of the
1122      external_fields_load routine (cf README file).
1123    
1124    checkpoint46m_post
1125    o modified testscript to return -- when there are no lines of "%MON" output
1126    o added new flag "quasiHydrostatic" for QH mode
1127      and new routine quasihydrostaticterms()
1128    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1129      New routine: mom_u_coriolis_nh()
1130    o fixed sign of non-hydrostatic metric terms in u and v equations.
1131      Depend on correct sign of gravitySign.
1132    o added work.pc* to .cvsignore in aim directories using ifc
1133    o introduced flag for controllin non-hydrostatic metric terms
1134    o removed gravitySign from PARM04
1135    o switched to g77/ifc from pgf77 in aim experiments
1136    
1137    checkpoint46l_post
1138    o made convective adjustment work with pressure coordinates:
1139     - changed the direction of k-loop in convective_adjustment.F for the
1140       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1141     - adjusted the reference pressure k-index in convective_adjustment.F
1142     - adjusted the convection condition in convect.F (in analogy to
1143       calc_ivdc.F)
1144     - convective_adjustment no longer computes anything on the halos
1145     - removed the warnings about negative salinity from find_rho.F and
1146       find_alpha.F; instead the new routine look_for_neg_salinity, called
1147       at the beginning of find_rho, find_alpha, and find_beta, does a
1148       check of the entire slice, if CPP-option
1149       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1150    checkpoint46l_pre
1151    
1152    checkpoint46k_post
1153    o fixed the verification/global_ocean.90x40x15 experiment:
1154     - new bathymetry (the world according to A., JMC, and M.)
1155     - new initial fields and forcing fields (*.bin files)
1156     - new POLY3.COEFFS (for the next release one should switch to a full
1157       equation of state: JMD95P or MDJWF)
1158     - fixed several errors and redundancies in the data file
1159     - experiment uses looped cells
1160     - added matlab directory with diagnostic scripts for plotting of output
1161    
1162    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1163     - read AIM physics parameters from a file (data.aimphys)
1164     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1165    
1166    checkpoint46j_post
1167    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1168    o move wVel computation at the end of the time step, in S/R integr_continuity
1169    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1170    o update timeave pkg for wVel diagnostic.
1171    checkpoint46j_pre
1172    
1173    checkpoint46i_post
1174    o Clean up AIM package (and keep the results unchanged):
1175      include CPP_OPTION and use IMPLICT NONE in all routines ;
1176      declare all the variables _RL ; use _d 0 for all numerical constants.
1177      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1178    
1179    checkpoint46h_post
1180    o cleaned up the use of rhoNil and rhoConst.
1181      - rhoNil should only appear in the LINEAR equation of state, everywhere
1182        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1183        and the dynamical equations are all divided by rhoConst
1184    o introduced new parameter rhoConstFresh, a reference density of fresh
1185      water, to remove the fresh water flux's dependence on rhoNil. The default
1186      value is 999.8 kg/m^3
1187    o cleanup up external_forcing.F and external_forcing_surf.F
1188      - can now be used by both OCEANIC and OCEANICP
1189    checkpoint46h_pre
1190    
1191     Added code to convert surface volume flux (fresh water) into
1192     a mass flux when using P coordinates in the ocean (OCEANICP).
1193     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1194    
1195    checkpoint46g_post
1196    o Include a new diagnostic variable phiHydLow for the ocean model
1197      - in z-coordinates, it is the bottom pressure anomaly
1198      - in p-coordinates, it is the sea surface elevation
1199      - in both cases, these variable have global drift, reflecting the mass
1200        drift in z-coordinates and the volume drift in p-coordinates
1201      - included time averaging for phiHydLow, be aware of the drift!
1202    o depth-dependent computation of Bo_surf for pressure coordinates
1203      in the ocean (buoyancyRelation='OCEANICP')
1204      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1205        Theta, Salinity, and Pressure in the parameter list. This routine is
1206        presently contained in find_rho.F. This routine does not give the
1207        correct density for 'POLY3', which would be a z-dependent reference
1208        density.
1209    o cleaned up find_rho
1210      - removed obsolete 'eqn' from the parameter list.
1211    o added two new verification experiments: gop and goz
1212      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1213    checkpoint46g_pre
1214    
1215    checkpoint46f_post
1216    o Enable tangent linear (forward mode) gradient checks:
1217      - extended active file handling to g_... files
1218      - added TANGENT_SIMULATION to theSimulationMode
1219      - extended grdchk package accordingly
1220    o added tangent linear setup in verification/carbon/code_ftl
1221    o added adjoint setup in verification/front_relax/code_ad
1222    
1223    checkpoint46e_post
1224    o Added new equation of state -> MDJWF
1225      - EOS of McDougall et al., 2002, JAOT, submitted
1226      - caveat: the equation of state is only valid for a smaller (more
1227        realistic?) range of values than JMD95P/Z and UNESCO
1228      - added masks to the calculation of pressure in store_pressure
1229      - added more check values for density in check_eos (ini_eos.F), some of
1230        the old check values are out of the range of the MDJWF-eos, so don't
1231        expect perfect matches for those
1232    checkpoint46e_pre
1233    
1234    checkpoint46d_post
1235    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1236      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1237      case of pressure coordinates. eosType='JMD95Z' in
1238      combination with buoyancyRelation='OCEANICP' now causes an error.
1239    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1240      in find_alpha/beta.
1241    checkpoint46d_pre
1242    
1243    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1244      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1245    
1246    checkpoint46c_post
1247    o Changes necessary for ocean in p-coordinates
1248     -  Added new buoyancy relation = 'OCEANICP'
1249     -  Added new parameters = gravitySign (this used to be contained inside
1250        the factor dRdZ which I added when we first switched to R coordinates).
1251     X GM/Redi is not compatible (yet)
1252     X bottom drag and no-slip need to be debugged.
1253    checkpoint46c_pre
1254    
1255    checkpoint46b_post
1256    o Added new equation of state -> JMD95Z and JMD95P
1257      - EOS of Jackett and McDougall, 1995, JAOT
1258      - moved all EOS parameters into EOS.h
1259      - new routines ini_eos.F, store_pressure.F
1260    o Added UNESCO EOS, but not recommended because it requires
1261      in-situ temperature (see JMD95)
1262    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1263      unesco.f to be used with POLY3
1264    checkpoint46b_pre
1265    
1266    checkpoint46a_post
1267    o Added (atmospheric) pressure loading
1268      - new field in FFIELDS.h, etc...
1269      - new cpp flag ATMOSPHERIC_LOADING
1270    o Changed hFacC to _hFacC in calc_phi_hyd.F
1271    o Added SHORTWAVE_HEATING to some files for consistency
1272    checkpoint46a_pre
1273    
1274    checkpoint46
1275    further merges from release1_p5
1276    o new ctrl package
1277      - adopted from ECCO environment to enable optimization
1278      - added Eliassen Palm fluxes to controls
1279    o added Eliassen Palm flux controls to gradient check package
1280    o cost package
1281      - Compatible with new ctrl package
1282      - added Eliassen Palm cost hooks
1283      - modif's of existing cost functions
1284    o Adjoint-related bug fixes in kpp:
1285      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1286      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1287    o autodiff package
1288      - flow directives:
1289        + new for S/R do_the_model_io
1290        + enhanced for S/R checkpoint
1291        + new gmredi.flow
1292      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1293        disable adcommon.h/g_common.h by default.
1294      - fixed problem for adjoint of global_max
1295    o modified verification/carbon/
1296    o New setup for adjoint of global_ocean
1297    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1298    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1299    o incorporated hooks for sponge layer code (external_forcing.F)
1300    
1301    checkpoint45d_post
1302    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1303    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1304      (affects plume_on_slope "cg2d" output)
1305    o add new parameter deltaTfreesurf for free-surface time stepping
1306    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1307    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1308    o change phiMin in exp1 (to agree with documentation)
1309    o add new flags:
1310     - T,S forcing inside/outside Adams-Bashforth
1311     - turn off temp,salt advection and/or forcing
1312     - for each tracer, define internal flag for multiDimAdvection & A-B
1313    o monitor: change definition of KE to check conservation of Energy
1314    
1315    checkpoint45c_post
1316    o Removed f90 comments ("!")
1317    o Modified initialisations to enable exf package for MITgcm
1318      (without invoking ECCO_PACKAGE).
1319    o modifications to gradient check package (Martin Losch)
1320      - enable centered differences
1321      - modified format of standard output
1322    
1323    checkpoint45b_post
1324    o cleaned exchange calls in cg2d
1325    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1326    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1327      to configure barotropic setup (Martin Losch)
1328    o moved some initialisations within bi,bj loop in dynamics
1329      (TAF flow dependency)
1330    o in initialise_varia, moved call packages_init_variables
1331      before convective_adjustment_init
1332      (corresponding adjustment of TAF tape initialisation).
1333    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1334    
1335    checkpoint45a_post
1336    o compute Rho over the whole domain (extend iMin,jMin indices)
1337    o specific exchange for X-slice domain (case Ny=1)
1338    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1339    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1340    
1341    checkpoint44h_post = checkpoint45
1342    o Fix to restore differentiability:
1343      place at which packages_init_variables is called in
1344      initialise_varia is crucial for reverse control flow.
1345    o modifications in GMRedi to enable stable adjoint
1346      (corresponding modif's in thermodynamics, dynamics)
1347    o added missing hook for sponge layer code in external_forcing
1348    o modified test cost functions
1349    o storing in gad_advection (plus removal of write(0,*)!
1350    o missing headers TR1.h added in convective_adjustment routines
1351    o errorMessageUnit set non-equal zero in eeboot
1352      (conflict on some platforms, e.g. IBM SP3)
1353    o modified carbon verif.
1354    
1355    checkpoint44h_pre
1356    o vertical grid option: allow to put the Interface at the middle between
1357      2 cell-centers ; replace delZ in pkg/kpp by drF.
1358    o GM Advective form: Tracers are advected using the residual transport (=
1359      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1360    
1361    checkpoint44g_post
1362    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1363      results) ; ifdef missing in thermodynamics.F
1364    
1365    checkpoint44f_pre,checkpoint44f_post
1366    o added PTRACERS package
1367      This allows an arbitrary number of passive tracers to be integrated
1368      forward simultaneously with the dynamicaly model.
1369      + Implemented so far:
1370        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1371        - I/O and checkpointing
1372        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1373      + Not implemented so far:
1374        - KPP
1375        - OBCS
1376      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1377        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1378        line in data.pkg.
1379      + This package is disabled by default since it increases storage.
1380    
1381    
1382    o testscript: added -cleanup option
1383    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1384                 b) enable to filter 2D fields.
1385    
1386    checkpoint44e_pre,post
1387    o re-wrote convective adjustment to use pre-calculated weights
1388      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1389      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1390      Original calls to convect() still in place.
1391    
1392    chkpt44d_pre,post
1393    o added missing EXCLUDE_MONITOR flags
1394    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1395      (incompatible typ in MIN/MAX expressions caused problems
1396      on IBM SP3)
1397    o in genmake added variable MAKEDEPEND
1398      plus resetting for case SunOS
1399    o added timer_stats.c routine for IBM SP3
1400    o removed variables in dynamics
1401    !!! I forgot to create tag chkpt44d_pre !!!
1402    !!! But chkpt44d_pre = chkpt44c_post    !!!
1403    
1404    o real fresh water flux implemented with non-linear free-surface.
1405    
1406    chkpt44c_pre,post
1407    o few fix (mask in shap_s2, EmPmR in external_field_load,
1408      USE_NATURAL_BCS in solve_for_P);
1409    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1410    
1411    checkpoint44b_pre/_post
1412    o merge of relevant stuff from the ecco-branch:
1413      - genmake: removed $S64 overwrite for case SunOS
1414      - pkg/exf: update and corrections for field swapping and obcs
1415      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1416                  harmonized between ECCO and MITgcm
1417      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1418                      updated checkpointing_lev... lists for obcs
1419      - model/src: minor changes in forward_step, plot_field
1420                   added directive for divided adjoint in the_main_loop
1421      - pkg/mdsio: added mdsio_gl_slice
1422    
1423    o check parameters & config (chkpt44a_pre,post)
1424    o OBC and NonLin_FrSurf.
1425    
1426    checkpoint44
1427    o fix bug in mom_vi_del2uv
1428    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1429    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1430    o update AIM experiments (NCEP input files)
1431    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1432    o added some stuff for AD
1433    
1434    checkpoint43
1435    o added two new advection tests
1436    o added global 4x4 degree ocean test
1437    o added test of H&S94 with free surface on cube
1438    o some final mods for gradient check, adjoint,...
1439    
1440    checkpoint42
1441      Fixed AD-related problems:
1442    o Store directives up-to-date with re-arranged Adams-Bashforth
1443      (mainly thermodynamics.F)
1444    o New store directives for multi-dim. advection schemes
1445      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1446      * new common block and key passkey
1447      (mainly gad_advection.F)
1448    o Modified store directives for split of dynamics/thermodynamics
1449      for the case ALLOW_KPP
1450    o Cleaned argument list for timestep_tracer.F
1451    
1452    checkpoint41
1453    o re-formatted/added comments in prologues of key subroutines
1454      to work with protex
1455    
1456    checkpoint40
1457    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1458    o added FLT (floats) package from Arne along with demo. experiment
1459    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1460      implementation of forward-in-time forcing terms
1461    o more mods for non-linear free-surface including new variable
1462    o modified multi-dim method to work on cube
1463    o bug fix in KPP (from DM)
1464    
1465    checkpoint40pre9
1466    o added DST advection schemes
1467    o fix MPI bug on SGI's
1468    o modifications for non-linear free-surface
1469    o fixed conditionals for fixed flow/passive tracer only mode
1470    o added tension/strain form of stress tensor
1471    o changes to commenting of arguments for TAF/TAMC
1472    o added/updated many matlab scripts
1473    o added multi-dimensional advection method for tracers
1474      
1475    checkpoint40pre8
1476    o new package rw/
1477      Added method for dumping intermediate local arrays:
1478      mdsio_writetile - same as mdsio_writefield except works from inside
1479                        bi,bj loop
1480      mdsio_writelocal - same as mdsio_writetile except works for local
1481                         arrays
1482      write_local_r? - higher-level wrapper for mdsio_writelocal
1483      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1484      Example given at end of mom_vecinv.F that dumps some local arrays.
1485    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1486      control flux-form versus vector invariant code.
1487      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1488      or genmake -DISABLE ...
1489    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1490      (additional storing is now needed for case vecinv;
1491      currently nothing implemented to switch this storing off
1492      in case fluxform is used since no CPP flag available).
1493    
1494    checkpoint40pre7
1495    o bug fix in dynamics.F
1496      calc_viscosity called before k=1,Nr loop.
1497    o added some #ifdef's ALLOW_PASSIVE_TRACER
1498    o cleaned initialisations in ctrl_map_ini
1499      related to TAF
1500    
1501    checkpoint40pre6
1502    o split dynamics into thermodynamics & dynamics
1503    o corresponding split of calc_diffusivity into
1504      calc_diffusivity, calc_viscosity
1505      (kpp_calc_diff, kpp_calc_visc).
1506    o Added diffkr, kapgm to control variables
1507    o bug fix in gmredi_slope_limit for ldd97
1508    
1509    checkpoint40pre5
1510    o proper initialization of Adams-Bashforth time stepping
1511      + uses forward step for very first step of model (iter=0)
1512    o re-generated *all* output since almost all output is modified by this
1513      change (sorry but we've been putting this one off for about 2 years)
1514      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1515        *not* regenerated since they are already out of date and I don't
1516        want to create the impression that they are suddenly working.
1517    o removed KAP stuff for DEC's
1518    o modified/added many .cvsignore files in */code and */input
1519    o added new expt "solid-body.cs-32x32x1"
1520      + this uses an alternative form of ini_curvilinear_grid.F which
1521        is not necessarily any better than the current one...
1522    
1523    checkpoint40pre4
1524    o added re-initialisations of utrans,vtrans,rtrans in
1525      calc_common_factors which are crucial for TAF.
1526    o extended iMin,jMin range for calc_common_factors,
1527      calc_diffusivity
1528    o added option ALLOW_PASSIVE_TRACER
1529    o a few minor updates and fixes
1530    
1531    checkpoint40pre3
1532    o created calc_gtr1.F for gad package
1533    o split the_main_loop and re-introduced forward_step
1534    o some recomputations of nIter0 for TAMC
1535    
1536    checkpoint40pre2
1537    o Updated to latest branch of AJA, JMC
1538    o Added gradient check package
1539    o Added routines for passive tracer handling
1540    o Added carbon sequestration sensitivity experiment
1541    
1542    checkpoint39
1543     o Modifications and fixes to support TAMC
1544       (mainly missing or wrong directives)
1545     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1546       in addummy_in_stepping
1547     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1548     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1549     o Included following packages:
1550       cal: calendar
1551       exf: external forcing
1552       ecco: essential routines to control use of cal, exf
1553             (NB: this is not the full ECCO environment)
1554     o disabled some packages by default in genmake
1555    
1556    checkpoint38
1557     o see notes_c37_adj.txt
1558     o corrected wrong layer index in external_forcing_t
1559     o replaced the_main_loop/forward_step by the_main_loop
1560     o removed forceoutput from write_state
1561       (replaced criteria for initial/final state)
1562     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1563    
1564    checkpoint37
1565     o mdsio.F routine split and packaged in pkg/mdsio
1566       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1567        used unless genmake -disable=mdsio)
1568     o allow a more precise surface-geopotential gradient for the atmosphere
1569       taking into account the change in space of Alpha (=1/rho) at the surface.
1570     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1571       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1572     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1573       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1574       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1575     o Time-Average diagnostics defined as a pseudo package "timeave".
1576     o pickup files : old pickup (before c35) did not work with new code (c35
1577       and after) unless activating 2 commented lines in initialise-varia.
1578     o Non-Hydrostatic pickup file Pb fixed.
1579     o bug with Rigid-lid version (since c35) fixed.  
1580    
1581    checkpoint36
1582     o implement Crank-Nickelson barotropic time-stepping
1583     o recover Time-Average diagnostics
1584     o fix Pb in checkpoint (PR#19)
1585     o AIM become a standard package ; clean unused CPP_kees
1586    
1587    checkpoint35
1588     o subtantial rewrite of dynamics.f
1589     o allows staggered time-stepping
1590     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1591     o added bottom drag (linear + quadratic)
1592    
1593    checkpoint34
1594     o Modified exchange routines for correct reverse simulation.
1595     o Added verification output to comply with bug fix in impldiff.F
1596       as of c33 (exp2, natl_box).
1597     o Corrected store directives in dynamics.F
1598     o Corrected array boundaries in impldiff.F
1599     o Corrected array dimensions in gmredi.
1600       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1601     o Added routine GLOBAL_SUM_INT to global_sum.F
1602     o Added mdsio_gl.F for ECCO purposes.
1603    
1604    checkpoint33
1605     o Fixed bug in lower BC in impldiff.F
1606     o Fixed confusion about units of forcing arrays in FFIELDS.h
1607       namely Fu,Fv,Qnet,Qsw,EmPmR:
1608       - Removed verification/natl_box/code/external_fields_scale.F
1609         (did not differ from that in model/src)
1610       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1611         (see FFIELDS.h for description)
1612       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1613         kpp_calc.F and kpp_transport_t.F
1614       - Removed model/src/external_fields_scale.F and calls to it
1615       - verification/natl_box uses flux data with "atmospheric" sign so
1616         a special version of external_fields_load.F is used to
1617         change the data as it's read in. This way, the arrays
1618         have the right units and signs at all times tha a user could
1619         possibly use them.
1620     o Corrected genmake to delete a temporary file during configuration
1621    
1622    checkpoint32
1623     o Scaling of forcing fields moved from external_forcing.F to
1624       external_fields_scale.F, called directly after loading fields.
1625     o Surface relaxation terms added to surface tendency fields in
1626       extra subroutine.
1627     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1628       fields.
1629     o Changes in GMRedi to comply with packaging structure.
1630     o Modifications and bug fixes in KPP package.
1631     o Verification experiment for KPP added (verification/nat_box/)
1632    
1633    checkpoint31
1634     o Packages interface brought in line with defined standard
1635       -> new routines packages_...F
1636       -> changes in initialise_fixed.F, initialise_varia.F
1637       -> enables initialisation interface for ECCO package
1638     o Rescaling of external forcing fields immediately after read
1639       (removed from external_forcing.F)
1640       -> new: surface_fields_scale.F
1641       -> affects ini_foorcing.F, external_fields_load.F
1642     o Computation of surface tendencies before tendency updates.
1643       -> new: external_forcing_surf.F
1644     o Change of variable names useGMRedi, useKPP, useECCO
1645     o Further changes in dynamics.F, impldiff.F for TAMC
1646     o Tested for experiments 0, 2, 4.
1647       - not yet tested for GMRedi.
1648       - not yet tested for KPP.
1649    
1650    checkpoint30
1651     o Updates for OBCs
1652     o New experiment for test OBCs (internal_wave)
1653     o New output.txt in verification/exp4/results/
1654     o Updates for KPP: calculation of viscosity corrected, new variables
1655       kpp_dumpFreq and kpp_taveFreq
1656     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1657       and entry for T90 in genmake
1658    
1659    checkpoint29
1660     o packaged KPP and GM/Redi
1661    
1662    checkpoint28
1663     o Corrected initialization of hFacMin for difference vertical coordinates
1664     o Modified calculation of partial cell thickness to more robust algorithm
1665     o config_summary.F: replaced write_1D_... by write_0D_...
1666       read_write.F: added subroutines write_0D_...
1667     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1668       included some initialisations required for TAMC.
1669     o routine calc_isoslopes: modified sqrt computation to make it
1670       differentiable for zero argument.
1671     o routines dynamics, impldiff:
1672       included store directives and tape key computations required for TAMC.
1673     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1674    
1675    checkpoint27
1676     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1677       formulation works properly with variable resolution.
1678     o restructured the calling tree between the_model_main() and dynamics()
1679     o split initialise() into initialise_fixed() and initialise_varia()
1680     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1681       in new routine ini_psurf()
1682    
1683    checkpoint26
1684     o moved some #ifdef in optional routines to encompass everything
1685       except the argument declarations. This was using up some memory.
1686     o fixed macros like _ADT to work with both versions of Linux cpp
1687     o cleaned up some unused and uninitialized variables
1688       (helps when debugging with strict compile options)
1689     o split up CPP_EEOPTIONS.h into options and macros
1690       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1691     o patch for 2 processor JAM mode
1692    
1693    checkpoint25
1694     o updates for OBCs and NH
1695     o dramatically reduced memory usage
1696     o added "JAM" routines for use on Artic network
1697     o parameterization of convection by implicit vertical diffusion
1698     o added a diagnostic of convective index
1699     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1700       (this is was partly for OBCs and NH but also in anticipation of
1701        an explicit free-surface option)
1702     o initial state input files for U and V
1703    
1704    checkpoint24
1705     o Removed some spurious "REAL"s
1706     o Updated KPP to latest version from JPL
1707     o Added a COS(latitude) in horizontal viscosity
1708    
1709    checkpoint23
1710     o Added del^4 diffusion for salt and temperature
1711     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1712    
1713    checkpoint22
1714     o Made many small changes: implicit none, format(i5), etc...
1715     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1716    
1717    checkpoint21
1718     o Introduced new I/O package that supports direct-access records (mdsio.F)
1719     o Split-up mid-level I/O routines
1720     o Updated input data for experiments 0,1,2,4 and 5
1721     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1722    
1723    checkpoint20
1724     o Tidied up open-boundaries some more
1725     o Added non-hydrostatic code
1726     o Fixed some input data
1727     o Modified MPI start-up to work in "coupled" context.
1728    
1729    checkpoint19
1730     o Tidied up directory structure for verification experiments.
1731     o Added new code for open boundaries.
1732     o Corrected advective terms near boundaries.
1733     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1734     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1735     o Split default parameters out of ini_parms.F into set_defaults.F.
1736    
1737    checkpoint18
1738     o Further changes for optional code generation with
1739       CPP - ugh!
1740    
1741    checkpoint17
1742     o Beginning to incorporating modularity
1743       for supporting atmos. and ocean configs.
1744     o Small changes for TAMC complinace
1745     o New ultra simple test case. Barotropic box
1746       configuration "exp0".
1747    
1748    checkpoint16
1749     o Minor changes to exchange routines to support
1750       accumulation in reverse mode. Adjoint of an
1751       assignment is an addition.
1752     o Changes to support compilation by TAMC (LR(1)
1753       syntax) and by g77 under Linux ( 72 character
1754       limit ).
1755    
1756    checkpoint15
1757     Rewrote exchange routines to allow
1758     o General tile <-> tile connectivity.
1759     o TAMC reverse mode flag ( is this really needed? )
1760     o Variable width overlap and exchange region widths.
1761     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1762       shmput/shmget, VIA, SYSV shmem and every other cool
1763       communication method.
1764    
1765    checkpoint14
1766     Consistent isomorphism chages made. These allow dynamical core
1767     to support both pressure and meters as a vertical coordinate.
1768    
1769    checkpoint13
1770     Release which corrects global_max problem and a couple
1771     of KGM time-averaging diagnostic errors. Also contains
1772     a double-gyre experiment setup as well as the baseline
1773     4 degree global template. The double gyre template is
1774     organised to allow it to be applied automatically to
1775     the baseline configuration.
1776    
1777    branch-point-rdot
1778     A few tidy-ups have been made bt the real point of this
1779     check-point (excuse the pun) is to allow a branch to be
1780     made for the purposes of adding the rDot alterations.
1781     I don't want to commit the rDot to the main-trunk until
1782     we've actually tested it...
1783    
1784    checkpoint12
1785     Tidy up and added generic genmake script (formerly
1786     configure script).
1787     Released to testers.
1788    
1789    checkpoint11
1790     Re-arranged initialise() and introduced ini_vertical_grid()
1791     and ini_masks_etc().
1792    
1793    checkpoint10
1794     Introduced the configure script.
1795     Separated out the diags package.
1796     Added template for writing time-averages of tile/intermediate quantities.
1797     Updated SIZE.h in exp2 and made the data big-endian.
1798    
1799    checkpoint9
1800     MPI fix. Filename changes (meta/data). salbin*y stuff.
1801     General tidy-up.
1802     SST.bin SSS.bin added to verification/exp2
1803    
1804    checkpoint8
1805     Inludes time-dependant forcing and time-averaging.
1806     Works at 4x4 and 2.8125x2.8125 global
1807    
1808    checkpoint7-4degree-ref
1809     Branch from checkpoint7. Released for application to
1810     global modeling and general modeling - process studies, regional
1811     model etc..
1812     Configured for verification/exp2 - 4 degree global, two process.
1813    
1814  checkpoint7  checkpoint7
1815   Created by cnh   Created by cnh
1816   Simple 4 degree global simulation   Simple 4 degree global simulation

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