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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.340 by stephd, Wed Sep 1 16:57:12 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    o add offline package
6    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
7      provided by Stephanie Dutkiewicz
8    o genmake2: add ability to search for C compilers and cleanup test output
9      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
10    
11    checkpoint54d_post
12    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
13    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
14      leading to additional shift by 5 days each year of integration
15       (i.e. leading to considerable offset over the years)
16    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
17    o start with no AB and no initial filtering (staggerTimeStep):
18      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
19    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
20      (external loading & cpl import/export stay in forward_step.F)
21    o update coupling interface to work with new staggerTimeStep
22    o change MDSIO ptracers_pickup.
23    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
24    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
25    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
26    
27    checkpoint54c_post
28    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
29      this affects (truncation error) output.txt of test-exp:
30       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
31    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
32    o change Qnet to always be the net heat flux, (+upward).
33      affects (truncation error) output of natl_box exp.: updated
34    o define the max number of passive tracers in PTRACERS_SIZE.h
35    o start to test mnc routinely in exp0
36    o add sea-ice loading (sIceLoad) as a new forcing field.
37    
38    checkpoint54b_post
39    o add testreport "-j JOBS" option for parallel builds (tested and pretty
40       impressive on Altix and Opteron systems)
41    o diagnostics can now write NetCDF files through the mnc package
42    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
43    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
44    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
45      affects (truncation error) output of lab_sea & natl_box exp.: updated
46    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
47    
48    checkpoint54a_post
49    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
50    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
51    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
52    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
53      + internal_wave (shift in writing cg2d_ini_res)
54    checkpoint54a_pre
55    
56    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
57      - modified verification/lab_sea and natl_box_adjoint accordingly
58    
59    checkpoint54
60    checkpoint53g_post
61    o prepare splitting of thermodynamics: store convect.counter in common block
62    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
63      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
64    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
65    o new parameter "nShapS": allow to treat differently S from T (nShapT)
66    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
67    o restore adjointability
68    
69    checkpoint53f_post
70    o modifications that affect AIM experiment results (update output.txt):
71      - no advection of S at top interface Nr (pkg/generic_advdiff)
72      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
73    o AIM pkg:
74      - include stability function into surf.Flux derivative relative to Tsurf
75      - calculate clear-sky radiation & surface temp. change (for diagnostics)
76    
77    checkpoint53e_post
78    o merged cylindrical coord configuration
79    o added rotating_tank experiment
80    checkpoint53e_pre
81    
82    checkpoint53d_post
83    o faulks upgraded: re-generate output.txt that have changed:
84       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
85    o Added Bryan and Lewis, 1979, vertical diffusivity profile
86    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
87    o added Sadourny discretization of Coriolis
88      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
89      - re-enabled use of omega3 (useAbsVorticity)
90    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
91      vector-invariant equations
92      - note: does *NOT* yet use same variable visc. for no-slip BC's.
93    o recoded the lateral boundary conditions for non-hydrostatic w, this time
94      hopefully without new bugs
95      - still to do: biharmonic friction for non-hydrostatic w
96    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
97    o regenerated output for global_ocean_ebm (using -ieee)
98    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
99      of mom_common/
100      - simple re-arrangement of instructions within computing loop
101    checkpoint53d_pre
102    
103    checkpoint53c_post
104    o new version of coupler for AIM+thSIce and Ocean models
105     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
106     - land: change Evaporation of snow
107     - aim with thSIce: fix bug in snow-precip.
108    o changes to calc_gw.F
109     - bug fix for w^2 term near the bottom boundary
110     - (hopefully) improve the lateral slip boundary condtions for use with
111        partial/looped cells
112      - because the bug fix changes two verification experiments anyway (exp5
113        and plume on slope), change the lateral boundary condition from half slip
114        to the value of no_slip_sides
115    o ebm package wasnt quite up to the parallel task. Fixed that.
116    o Adjoint of EBM package + verification
117      * TLM OK
118      * ADM not sufficient accuracy yet (needs further testing)
119    
120    checkpoint53b_post
121    o Commiting new energy balance model to repository
122      * package is pkg/ebm
123      * verif. is verification/global_ocean_ebm
124      * references are in ebm_driver.F
125    C      * X. Wang, P. Stone and J. Marotzke, 1999:
126    C        Global thermohaline circulation. Part I:
127    C        Sensitivity to atmospheric moisture transport.
128    C        J. Climate 12(1), 71-82
129    C      * X. Wang, P. Stone and J. Marotzke, 1999:
130    C        Global thermohaline circulation. Part II:
131    C        Sensitivity with interactive transport.
132    C        J. Climate 12(1), 83-91
133    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
134    C        Destabilization of the thermohaline circulation
135    C        by atmospheric eddy transports.
136    C        J. Climate 7(12), 1870-1882
137    o Will need long integration testing.
138    checkpoint53b_pre
139    
140    o created pkg/mom_common in preparation for variable viscosity code
141    o renamed and split ini_mnc_io
142    o pkg/land: only liquid water can diffuse or run-off
143    o AIM using land: soil wetness availability account for snow
144    o added printMapIncludesZeros to EEPARMS namelist
145    
146    checkpoint53a_post
147    o restore TAMC compatiility for exf_constants.h
148      (no usage of _d in .h)
149    o Additional storing in KPP in an attempt to fix
150      TAMC problem with adjoint of KPP code.
151      (no success...)
152      Identical code works fine with TAF.
153    o Fixed verification/natl_box_adjoint experiments.
154      Initial conditions for Experiments 4 and 5 are now
155      set to "SEAICE_initialHEFF=0", which is more reasonable,
156      and hence gives results closer to that of Experiment 2.
157      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
158    
159    checkpoint53
160    o stable checkpoint with up to date adjoint
161      TLM tests only run for 1st grdchk at the moment. Its unclear if
162      this is a code problem or a problem with resetting code for g_
163      variables that is being autogenerated wrong.
164      Otherwise:
165       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
166       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
167         are both still in chaos following their security messes.
168    
169    checkpoint52n_post
170    o various build (mostly genmake2) changes including:
171      - ability to build/run more easily within Cygwin and MacOS X
172      - more complicated Makefiles with a stronger dependence on Gnu Make
173    o pkg/seaice modifications
174      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
175        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
176        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
177      - changed proxy for geostrophic velocity and updated
178        verification/lab_sea/results/* accordingly
179      - removed ADI dynamic solver from pkg/seaice
180      - replaced all occurrences of 1/CSTICE or 1/CSUICE
181        they caused a segmentation fault under certain circumstances
182      - removed unused field WATR
183    o bug fix in exf-package:
184      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
185         now reflect that.
186    o small fixes in the cal-package:
187      - set reference date to first of January for the 'model'-calendar
188      - failing of cal_CheckDate in cal_FullDate now actually results in a
189        warning
190    o small modifications in exf-package to increase flexibility:
191      - change climtempfreeze from a constant to a runtime parameter that
192        is specified in data.exf_clim (default = -1.9)
193      - introduce runtime parameter windstressmax (default = 2.0) that is
194        specified in data.exf
195    o fix in pkg/thsice:
196      - update Evap (Tsf changes) to be consistent with Latent heat flux
197      - maintain snow precipitation unchanged (even if Tsf >=0).
198     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
199    
200    checkpoint52m_post
201    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
202      this does not change any of the results, because myIter=0 in swfrac always
203      lead to jwtype=2 (the default anyway), but the call makes little sense
204      as a default
205    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
206    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
207      atmospheric model (AIM) to use it ; add a "slab ocean" component.
208    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
209    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
210    o extending useSingleCpuIO option to work with new exch2 I/O format
211      - old-style, missing-tile I/O is still accessible by defining CPP
212        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
213    o monitor package can write to NetCDF files and/or STDOUT
214    o fix re-definition bug in MNC_GRID_INIT_ALL()
215    o doc/api_reference added
216      - a framework for building an API Reference Manual using all
217        the "protex" comments embedded in the code
218      - see pkg/generic_advdiff, pkg/mnc for examples
219    o MNC:
220      - make myThid the last argument for all subroutines
221      - new default for the grid files: NO halos
222      - add useMNC and other run-time flags
223      - separate per-file-group handling of the unlimited dimension
224      - early initialization of MNC w/ flags read at the eeboot stage
225        and lookup tables set in initialize_fixed
226      - write all MNC output to a freshly-created directory
227    o thermodynamics sea-ice (thsice) is now tested with testreport.
228    o test exp. advect_cs: use the standard cs32 grid ; update output.
229    o Added functionality to grdchk:
230      pick global i,j,k position (or nearest wet) where to perform check.
231    
232    checkpoint52l_post
233    o new land formulation:
234      a) use ground enthalpy as prognostic variable to ensure exact
235         energy conservation.
236      b) account for water temperature and for latent heat of freezing
237         in all processes (rain, run-off, ground storage)
238      c) compute surface and ground temperature implicitly.
239    o aim_v23 modification for new land model:
240      a) Treat separately land / ocean / sea-ice surface fluxes
241         to allow implicit computation of land & sea-ice surface temp.
242      b) add snow precipitation.
243    checkpoint52l_pre
244    
245    o fix problem (when 1 tile is empty) in min/max monitor.
246    o fix bug in timeAve (u,vZetatave in common block)
247    o no restoring terms under ice for pkg/seaice
248    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
249    o bug fix for pkg/seaice pickups
250    o change MNC call locations and add coordinate attributes
251    o mask vorticity at the corner ; affects global_ocean.cs output
252    o fix ini_curvilinear_grid ; test CS experiments with mpi
253    o aim.5l_cs: modify sea-ice fraction input file ; update output
254    o exf: Adding simple range check routine for exf fields after read
255    
256    checkpoint52k_post
257    o removed top-level directory "diags"
258      - we migrated these functions to pkg/timeave a long time ago
259    o fixed bug introduced in pkg/monitor
260    o accuracy ctrlprec = 32 insuffient for gradient checks using
261      averaged fields (I/O via cost_averages)
262      -> use ctrl.h in active_file*.F to control I/O precision.
263    o paramter list of CALL ADTHE_MAIN_LOOP
264    o added initial do_the_model_io to ecco
265    o set all ...Freq to zero after cost_final
266      taveFreq, dumpFreq, pChkptFreq
267    o MAIN and ECCO differentiability restored
268    
269    checkpoint52j_post
270    o fix nchklev in tamc.h for global_ocean...
271    o Bringing flow and store directives up-to-date
272    o Really weird thing!
273      call do_the_model_io from the_main_loop with parameters
274      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
275      TAF places a faulty re-call of initialise_varia
276      after cost_final call which should not be there!
277    checkpoint52j_pre
278    
279    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
280      error messages
281    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
282    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
283      debug output
284    o modfied mdsio_writefield.F to handle non-global files under exch2
285    o update AIM Cubed-Sphere exp (aim.5l_cs):
286      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
287    o update AIM Equatorial Channel exp:
288      use standard aim_v23 pkg and change the SST fields to be more realistic.
289    o globalFile now works with exch2
290    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
291      mon_vort3.F to make exch2 friendly with >1 tile per cube face
292    o limit timeave output for hi-res integrations
293    
294    checkpoint52i_post
295    o removed CPP_EEOPTIONS.h from verification/*/code
296    o updated the tiling for global_ocean_pressure
297    checkpoint52i_pre
298    
299    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
300      the old pkg/aim).
301    
302    checkpoint52h_pre
303    o shortened offending lines in exch2_send_rx?.template
304    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
305    o genmake2: add build & execute test for NetCDF code
306    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
307      old grid files, moved CPP_EEMACROS.h to pkg/exch2
308    o added useSingleCPUIO flag to monitor.F and mon_out.F
309    o added temporary hack for sea-ice dynamics on the cube:
310      metric terms are ignored and it is assumed that
311      there is no sea-ice on cube faces 1, 2, 4, and 5.
312    
313    checkpoint52f_post
314    o added exch2 cube routines to pkg/exch2
315    o modified hs94.cs-32x32x5 to use it
316    o added new grid files to hs94.cs-32x32x5
317    checkpoint52f_pre
318    
319    checkpoint52e_post
320    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
321      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
322    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
323      to work with implicit vertical advection and AB ;
324    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
325    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
326     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
327    checkpoint52e_pre
328    
329    o fix bug in impldiff when Nr=1 or Nr=2.
330    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
331    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
332    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
333      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
334    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
335    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
336    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
337    
338    checkpoint52d_post
339    o re-tiled many expts to allow comparison in multi-processor mode
340      - updated output accordingly
341      - changed hs94.128x64x5 to use intial T from file rather than use the
342        random number generator
343    o add infrastructure in model routines for fizhi and gridalt packages
344    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
345    o changes to permit hi-res, cubed-sphere, configuration
346      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
347      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
348      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
349        of surface winds for the cube
350      (A verification experiment, based on global_ocean.cs32x15, but with
351       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
352       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
353       complete with example surface forcing files and matlab scripts to look
354       at the output and compare it with that of global_ocean.cs32x15.)
355    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
356       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
357       to conform to the common rule.
358    o check-in the first version of the coupler + interfaces for multi-components
359       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
360       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
361       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
362       - ocean and atmos. share the same horizontal grid (no interpolation).
363       - exchanges between component and coupler is done in forward_step
364    o new verification experiment, cpl_aim+ocn:
365       coupled ocean - AIM atmosphere on cs32 grid.
366    
367    checkpoint52d_pre
368    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
369    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
370    
371    checkpoint52c_post
372    o Fixing OPTIONS files for use of exf:
373      - ALLOW_ECCO not needed
374      - ECCO_CPPOPTIONS.h should not be included from
375        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
376        as has been the case in the past
377      - All cal/exf related options are currently set in
378        single header file. Should remain so until we
379        agree on a consistent new policy.
380    o Removed all CPP options for cal package.
381      cal has no more CPP options.
382    o modified STOREs in GAD_ADVECTION
383    o corrected key comp. for passkey
384    
385    checkpoint52b_post
386    o new version: "thsice" of thermodynamic sea-ice pkg:
387     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
388     - modify fluxes but do not change theta directly;
389     - light cleaning of bulk_force pkg (still needed with thsice).
390     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
391       + output_thsice.txt to test thsice & bulk_force pkgs.
392    o put back grid & coriolis monitor output.
393    checkpoint52b_pre
394    
395    o call "do_the_model_io" at the beginning (=> dump initial state)
396    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
397    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
398      (need info on NUMBER_OF_PTRACERS)
399    o missing PTRACERS headers in some routines
400    o default tamc.h in pkg/autodiff supposed to crash
401      to ensure proper customization
402    
403    checkpoint52a_post
404    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
405      - moved surfaceTendencyTice from pkg/seaice to main code
406      - subroutine FREEZE_SURFACE now limits only surface temperature
407        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
408        => new output.txt for global_ocean.cs32x15 & global_with_exf
409      - keep the old version of FREEZE for backward compatibility;
410        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
411      - corresponding modifs for TAF directives
412    o added surface flux output variables to TIMEAVE_STATVARS
413    o time-averaged output for pkg/ptracers
414    o fix problem with ECCO-related divided adjoint
415      snapshot file was missing some ad-variables,
416      but no warning issued by TAF
417    
418    checkpoint52a_pre
419    o some bug fixes for #undef REAL4_IS_SLOW
420    
421    checkpoint52 = ecco_c52_e35
422    o after testing adjoints of checkpoint51u_post
423    
424    checkpoint51u_post
425    o this is the post-merge tag of the ecco-branch
426      (needs another clean checkout and re-testing)
427    o various natl_box_adjoint configs and results
428      but no input fields
429    o obcs adjoint not yet merged!
430    o adding ECCO global 1x1 and 2x2 degree configs
431    o updated/extended some store directives for seaice
432    o pkg/ecco now containes ecco-specific part of cost function
433    o top level routines the_main_loop, forward_step
434      supersede those in model/src/
435      previous input data.cost now in data.ecco
436      (new namelist ecco_cost_nml)
437    o in ctrl/ cleaned some cross-dependencies and updated CPP options
438    
439    checkpoint51t_post
440    o this is the pre-merge tag of the ecco-branch
441    
442    checkpoint51s_post
443    o cleanup: removed various obsolete #define-s
444    o pkg/grdchk
445      - renamed 'ph-grd 3' to 'grad-res'
446      - merged from ecco-branch
447        (remaining bug fixes for obcs gradient checks)
448      - additional high-precision output for testreport
449        (grep for 'precision_grdchk_result')
450    
451    checkpoint51r_post
452    o cleaned up or removed CPP_OPTIONS.h files
453    o updated results for some of the tests to reflect the new
454      optfiles (-ieee: -O0 instead of -O3)
455    
456    checkpoint51q_post
457    o cd_code:
458      - moved cd_scheme.F -> cd_code_scheme.F
459      - separate read_checkpoint from cd_code_ini_vars.F
460      - separated cd_code part from write_checkpoint
461      - updated AD_SOURCE, generated .flow
462      - added CD_CODE_VARS.h to the_main_loop
463      - Moving cd_code specific store dir.s to pkg/cd_code
464    o ctrl package totally restructured
465      - pack/unpack now optional and decoupled from
466        xx_/adxx_ I/O
467      - ctrl_pack/unpack cleaned
468        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
469      - confined inclusion of AD_CONFIG.h to where necessary.
470    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
471    
472    checkpoint51p_post
473    o create initial cd_code package
474      - WARNING: the initialization of fields within packages
475        is broken because INI_FIELDS (where READ_CHECKPOINT is
476        called) is called *before* PACKAGES_INIT_VARIABLES.
477        This seems to be backwards since
478        1) its important to initially zero the entire field including
479           the "halo" region
480        2) zeroing needs to be done *before* reading pickup info
481           and the pickup call might or might not happen in any
482           particular run
483      - this needs an overhaul for R2
484    o cleanup verification/*/code/GMREDI_OPTIONS.h
485    o cleanup testreport
486    
487    checkpoint51o_post
488    o bringing AD-related verif's up to date with genmake2
489      - carbon/
490      - global_ocean.90x40x15/
491      - hs.94.1x64x5/
492      - (front_relax/ )
493    o (more) consistent directory structure for AD-related verif.'s
494    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
495    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
496    o bug fix in find_alpha.F for MDJWF:
497      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
498        change rho -> rho-rhoConst
499      - replace call find_rho to find_rhonum
500    o initialisation of rFlx extended to full array (required by TAF)
501      and shifted to thermodynamics
502    o removed PTRACERS.h in ptracers routine
503    o added surfacetendencyPtr to S/R parameter list pracers_forcing
504    o Correcting initialisations for fVerU, fVerV.
505    o helping TAF to recognize dependency on kUp for
506      fVerU, fVerV
507    o Replacing delZ by delR in pkg/ctrl/
508    checkpoint51o_pre
509    
510    o undid all of cp51 pending some cleanups and discussion
511    o added the [#include "AD_CONFIG.h"] statement to all files that need
512       it for adjoint/tl #defines
513     o re-worked the build logic in genmake2 to support AD_CONFIG.h
514     o removed tools/genmake since it no longer works
515    
516    checkpoint51n_post
517    o modifications to make FREEZE flux visible to pkg/kpp
518      - moved surfaceTendencyTice from pkg/seaice to main code
519      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
520      - subroutine FREEZE now limits only surface temperature
521        (this means new output.txt for global_ocean.90x40x15,
522         global_ocean.cs32x15, and global_with_exf)
523    o added surface flux output variables to TIMEAVE_STATVARS
524    
525    checkpoint51n_pre
526    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
527    o added [#include "AD_CONFIG.h"] to all files that use the following
528      defines:
529      - ALLOW_ADJOINT_RUN
530      - ALLOW_TANGENTLINEAR_RUN
531      - ALLOW_ECCO_OPTIMIZATION
532    
533    checkpoint51m_post
534    o incorporating changes to get TAMC/TAF working in genmake2
535      - added new TAMC/TAF targets to the Makefile
536      - various cleanups related to package handling
537      - these changes should have no impact on the forward model
538    
539    checkpoint51l_post
540    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
541     - faster algorithm for cal_addtime.F
542     - higher precision arithmetic, where needed
543     - pkg/exf *startdate variables changed from calendar date to
544       model integration time
545    
546    checkpoint51l_pre
547    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
548    o enable to apply restoring on S & T only in a latitude band.
549    o update output (external_forcing_surf modif. change truncation errors)
550       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
551    
552    checkpoint51k_post
553    o change default to: useNHMTerms=.FALSE.
554     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
555       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
556     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
557        exp1, ideal_2D_oce
558     - change data file of oceanic exp (leave the results unchanged for now)
559       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
560    o set gravitySign automatically according to the vertical coordinate used
561      (and change sign: back to "logical" value: +1 when R increases downward)
562    o added an include barrier to the default CPP_OPTIONS.h and
563      removed the #include "PACKAGES_CONFIG.h" from it
564    o fix a bug in mom_fluxform (from chk51j_post)
565    
566    checkpoint51j_post
567    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
568    o adjusted some flow directives (dynamics, thermodynamics)
569    o added cubed-sphere case to test cost function
570    o heckpoint_lev?_directives.h now include
571      pkg-specific directives, whenever those are enabled.
572    o Moving pkg-specific flow directives to corresponding pkg
573      Moving pkg-specific differentiation list to corresponding pkg
574      Moving pkg-specific checkpoint-lev storing to corresponding pkg
575      ---> conventions are
576           - pkg_ad.flow
577           - pkg_ad_diff.list
578           - pkg_ad_check_lev?_dir.h
579    
580    checkpoint51i_post
581    o merge of the branch-genmake2
582      - knowingly breaks the older genmake
583      - automatic generation of all ALLOW_${PKG_NAME} defines
584      - new testreport supersedes older testscript
585    o large number of package inclusion and header cleanups
586    checkpoint51i_pre
587    
588    o new output for adjoin of global ocean vector invariant
589    o fix for checkpoint of thermodynamic seaice and bulk_force
590    o Steph gchem various cleanups
591    
592    checkpoint 51h_pre
593    o fixed some single quotes
594    o modify gchem pkg to be more versatile
595    o modifications to clean up dic pkg
596    o add pkg/cfc
597    
598    checkpoint51g_post
599    o provide links for ARPACK and ADM*TLM
600    o start removing verification/vero/
601    o update AD-related stuff
602      (in particular some IF-statements in model/src/ routines)
603    o adding to verification/global_ocean.90x40x15/ adjoint of
604      vector invariant setup
605    
606    checkpoint51f_post
607    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
608    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
609      of tracer Green's fucntions for ocean inversion project.
610    
611    checkpoint51f_pre
612    o Added on-the-fly spatial interpolation capability
613        "USE_EXF_INTERPOLATION" to pkg/exf.
614      - This is a temporary Cartesian-grid hack until
615        the super-duper ESMF coupler becomes available.
616      - See verification/global_with_exf/README for usage example.
617      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
618        flags and modified pkg/seaice accordingly.
619    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
620        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
621        non-local transport term.
622    
623    checkpoint51e_post
624    o pkg/mom_vecinv:
625      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
626      - add time-ave diagnostic of vorticity advection.
627    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
628    o atmospheric geopotential: - include water vapor effect;
629                                - use p^kappa in p* scaling.
630    o land pkg: read initial state from files.
631    o AIM : add stratospheric drag in the upper level
632    
633    checkpoint51d_post
634    o change function ILNBLNK (=> last non-blank char.) to return zero
635      (instead of the string length) when the string. char is empty
636    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
637    o modif's to restore TAMC compatibility
638      - avoid "_d" constructs in PARAMETER declarations
639      - avoid interrupting lines by comment lines
640    o Use cluster local disks for purely local I/O
641      vs. globally visible disks needed for ctrl stuff
642      (merged from ecco-branch)
643      - new active_file_loc... and mdsio_..._loc routines
644      - affected packages: autodiff, ctrl, grdchk, mdsio
645    
646    checkpoint51c_post
647    o introducing integer flag debugLevel
648      - debLevZero: suppress all output
649      - debLevA: standard
650      - debLevB: equivalent to current debugMode=.TRUE.
651    o introducing pathname variable mdsioLocalDir for mdsio
652      that can be specified at runtime
653      (relevant for cluster I/O to local disk)
654    `
655    >>>checkpoint51b_post
656    adjoint of ptracers
657    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
658    o extended state in checkpoint_lev?, etc.
659    o alternative ctrl/cost with tr1 or ptracer
660    o new comlev1_bibj_ptracers
661    o new ptracers.flow
662    o made ptracers_forcing same as external_forcing_s
663    o added verification for adjoint with ptracers
664      - adm. grdchk fail so far
665      - tlm. grdchk OK
666      - checked tapelev/comlev recomputations: OK
667    <<<checkpoint51b_pre
668    
669    checkpoint51a_post
670    o added code for biogeochemistry package
671      - new pkgs: dic, gchem
672      - new subroutine in ptracers
673    o modify code for biogeo packages
674      - in model/src and pkg/ptracers
675    
676    checkpoint51
677    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
678      - autodiff, ctrl, exf, grdchk, seaice
679      kept separate packages
680      - cost, ecco, obcs
681    o updating verification/internal_wave, verification/lab_sea
682      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
683    
684    checkpoint50i_post
685    o Preparing next differentiable checkpoint and sync
686      of MAIN vs. ecco-branch
687      - 1st step: this one is differentiable
688      - 2nd step: next(! not this) checkpoint will have updated packages
689                  from ecco-branch)
690    
691    checkpoint50h_post
692    o new package "land": provide surface BC for AIM.
693    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
694    o AIM: use true log-P extrapolation for near surface temp (= as in
695        F.Molteni paper) ; update aim.5l_cs output.
696    o New variable in PARM03 for more flexible pickups
697    o somewhat cleaned package initialisation sequence for
698      ctrl/ cost/ ecco/ in packages_... routines
699    
700    checkpoint50g_post
701    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
702      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
703      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
704        made the default because of faster convergence than ADI
705    
706    checkpoint50f_post
707    o exf totally restructured
708      - replaced all exf_set_ routines by one generic exf_set_gen.F
709        and made sure it's still differentiable
710      - split exf_getffields.F into new exf_bulkformulae.F
711      - exf_inscal_/exf_outscal_ suffixes consistent with field names
712      - updated adjoint/makefile and relevant verif. accordingly
713    
714    checkpoint50f_pre
715     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
716          + change Evap over land. (update aim.5l_cs output)
717     o added missing .cvsignores and made uniform across expts
718     o changed configuration of tidal_basin_2d expt
719     o added pkg/debug functions for tracing code in fatal crashes
720     o tidied pkg/monitor to use MONITOR_OPTIONS.h
721     o new fn in pkg/monitor to stop model if solution grows too big
722     o removed lots of single quotes from comments
723    
724    checkpoint50e_post
725    o make KPP work with PTRACERS
726     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
727       nearly a copy of kpp_transport_s
728     - there is no analogue to SurfaceTendencyS, so I have to use
729       gPtr(of the surface layer) instead
730    o add a new platform SunFire+mpi (SunFire 15000) to genmake
731    checkpoint50e_pre
732    
733    checkpoint50d_post
734    o change kpp output from multiple-record state files to single-record state
735      files analogous to write_state.F
736    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
737      analogous to the cg2d-related output.
738    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
739      so that writing to internal file fn (with length 512) fails.
740    checkpoint50d_pre
741    
742    checkpoint50c_post
743    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
744    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
745    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
746    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
747    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
748    
749    checkpoint50c_pre
750    Merging from release1_p13:
751    o bug fix for pkg/seaice dynamic solver
752    o Added SEAICE_initialHEFF to pkg/seaice
753    
754    checkpoint50b_post
755    o store u*,v* in gU,V instead of in guNm1,gvNm1
756    o in order to put the momForcing out of the Adams-Bashforth:
757      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
758      to timestep.F
759    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
760    o re-generate output for highly sensitive test-exp:
761       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
762    
763    checkpoint50b_pre
764    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
765    o corrected CPP option mismatch in exf_Bulk... functions for case
766      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
767    
768    checkpoint50a_post
769    o Bug fix for merging between c50 and KPP.
770      ikey was passed from thermodynamics to kpp_calc via
771      common block rather than being recomputed in kpp_calc,
772      in contradiction with new key itdkey.
773      New key ikppkey created, and tamc.h headers updated.
774    
775    checkpoint50
776    - 2nd step of merge with ecco-branch:
777      merge changes in ecco-branch back into main trunk
778    - bug fix in find_alpha
779    - more storing in gmredi_calc_tensor.F, kpp_routines.F
780    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
781    - merged some sliced AD support routines
782    
783    checkpoint49
784    merged from ecco-branch:
785    o exf:
786      - Enable initialisation of forcing fields to constant
787        (runtime) values.
788      - in exf_getffields.F
789        Reduce i-/j-loop to interior domain, discarding overlaps.
790        That also fixes wrong TAF-key computations for key_1, key_2
791        with bulf formulae.
792      - exf_init.F modify #ifdef for exf_init_evap
793      - exf_getffieldrec.F, ctrl_getrec.F
794        The following INT-usages are not safe:
795          fldsecs  = int(fldsecs/fldperiod)*fldperiod
796          fldcount = int(fldsecs/fldperiod) + 1
797        and were modified.
798    o autodiff: checkpoint_lev...
799      - updated storing for bulk formulae (some arrays were missing)
800      - added state for seaice package
801      - synchronized with main branch
802    o DIVA:
803      Modif.s in
804      - the_main_loop.F
805      - the_model_main.F
806      and added cost_final_restore.F cost_final_store.F
807      o With these changes, it is possible to fully separate
808        the first forward run to compute the cost function (mdthe_main_loop)
809        and adjoint runs over individual DIVA intervals (adthe_main_loop)
810        into separate model executions.
811        This enables better tuning of DIVA to given queue sizes.
812      o Loss of cost function value in consecutive DIVA runs is
813        fixed by storing to 'costfinal' file.
814      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
815        beginning/end of adjoint integration is accounted for.
816      The current changes apply to TAF-1.4.26.
817      TAF has one remaining bug, requiring one manual change
818      (see MITgcm manual).
819    o cal: synchronized between MAIN and ecco-branch
820    
821    checkpoint48i_post
822    o Changes to restore differentiability of code w.r.t. previous tag
823      (mostly adding new routines to make list and replacing
824      pressure by totPhiHyd).
825    o Updated and merged grdchk package
826      - has both ADM and TLM checks
827      - works for single- and multi-proc.
828      - output cleaned
829      - worked successfully for parallel DIVA
830    o genmake:
831      - Adding -platform=SP4
832      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
833    o Modif. for DIVA:
834      ctrl_unpack should not be called in intermediate DIVA interval.
835      (similar thing would apply for active files such as
836      tbar, sbar, psbar, which should not be reinitialised;
837      only relevant for ecco-branch)
838    
839    checkpoint48h_post
840    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
841    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
842    o Added SEAICE_initialHEFF to pkg/seaice
843    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
844    
845    checkpoint48g_post
846    --- EOS:
847    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
848      store total Potential in totPhyHyd for diagnostics & EOS.
849    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
850    --- Pressure/geopotential gradient:
851    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
852    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
853      ( changes results of global_ocean_pressure )
854    o NLFS + z-coord.: add eta*Rho' contribution.
855    o accurate phiHyd when using interface-W at the middle between 2 centers
856     ( changes results of ideal_2D_oce )
857    o includes r* 2nd term in potential gradient.
858    
859    checkpoint48f_post
860    Merging from release1_p12:
861    o Modifications for using pkg/exf with pkg/seaice
862      - improved description of the various forcing configurations
863      - added basic radiation bulk formulae to pkg/exf
864      - units/sign fix for evap computation in exf_getffields.F
865      - updated verification/global_with_exf/results/output.txt
866    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
867      (SBO) core products, including oceanic mass, center-of-mass,
868      angular, and bottom pressure (see pkg/sbo/README.sbo).
869    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
870      to avoid negative values in shallow regions.
871      - updated verification/natl_box/results/output.txt
872      - updated verification/lab_sea/results/output.txt
873    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
874    o Added useSingleCpuIO option (see PARAMS.h).
875    o Updated useSingleCpuIO option in mdsio_writefield.F to
876      work with multi-field files, e.g., for single-file pickup.
877    o pkg/seaice:
878      - bug fix in growth.F: QNET for no shortwave case
879      - added HeffFile for specifying initial sea-ice thickness
880      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
881    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
882      kpp_transport_t.F, forward_step.F, and the_main_loop.F
883    o pkg/seaice:
884      - adjoint-friendly modifications
885      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
886    
887    checkpoint48e_post
888    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
889    o dynamics: change definition of computational domain & adapt mom_fluxform
890      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
891    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
892        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
893        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
894        global_ocean.90x40x15 global_with_exf global_ocean_pressure
895        inverted_barometer solid-body.cs-32x32x1
896      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
897    
898    checkpoint48d_post
899    o in preparation for r*:
900     a) use pre-computed gradient of hydrostatic potential:
901        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
902     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
903        => affects results of glob_oce_pressure (different truncation error)  
904      update output.txt of ideal_2D_oce & global_ocean_pressure
905    
906    checkpoint48d_pre
907    o in preparation for r*:
908      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
909      pass the 2 comp. of the grad. as arguments to momentum S/R.
910      but for the moment, only used if it does not change the results.
911    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
912    
913    checkpoint48c_post
914    Modifications in treatment of initial flux forcing controls
915    to avoid extra storing of flux fields.
916    
917    checkpoint48c_pre
918    o Added tidal_basin_2d experiment (currently 1D!)
919    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
920    
921    checkpoint48b_post
922    o r* coordinate added in #ifdef NONLIN_FRSURF block.
923     (modification to pressure gradient not yet implemented)
924    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
925      (for U & V) that are used for vertical advection of momentum.
926    
927    checkpoint48a_post
928    o In preparation for r*, use temp. array to compute vertical transport
929       in flux-form momentum pkg. => change results of few test-exp.
930      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
931                        lab_sea, natl_box & plume_on_slope
932    
933    checkpoint48
934    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
935    
936    checkpoint47j_post
937    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
938    o moved adexch from forward_step to addummy_in_stepping
939    o added exch in ctrl_map_...
940    o aveFreq.=0. at end of cost_final to avoid overwrite in
941      reverse checkpointing loop
942    o Yet more changes in gmredi:
943      * adgmredi_calc_tensor
944        avoiding all recomputation of gmredi_slope_limit
945      * adgmredi_x/y/rtransport
946        added flag for excessive storing to avoid recomp. of
947        u/v/rtans, dTdx/y/z
948        -> this is not really necessary and very memory-consuming
949      * adgmredi_slope_psi:
950        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
951      * gmredi_slope_limit
952        re-activated full calculation of taperfct for case 'ac02'
953    o updating verification/ adjoints of carbon, global_ocean.90x40x15
954    
955    checkpoint47i_post
956    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
957    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
958      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
959    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
960    o gmredi: fix few bugs.
961    
962    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
963    This will be a good checkpoint to plug into the ecco-branch.
964    o few modif.'s to get latest version adjointed
965      (mainly kick out code in ini_linear_phisurf)
966    o modif's to run adjoint with exactConserv
967    o case GM_BOLUS_ADVEC should be cleaned
968      S/R gmredi_slope_psi should be cleaned
969    o verification/carbon now has exactConserv=.TRUE.
970    
971    checkpoint47g_post
972    o time-average AIM output: becomes independent from statvars time-average
973      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
974    o After TAF bug fix:
975      Tested adjoint of gmredi package.
976      Tests were done with checkpoint47 rather than with latest
977      checkpoint47f_post since the latter is broken for the adjoint
978      verification/carbon/ contains both ADM and TLM gradient checks.
979    Here they are, before they get changed/lost/stolen.
980    Mostly modif.'s to fix numerical sensitivities.
981    Gradient checks OK for
982    - GM_taper_scheme:
983      * clipping
984      * ac02
985      * linear
986      * glw91
987      * dm95
988      * ldd97
989    - GMREDI_OPTIONS:
990      * GM_VISBECK_VARIABLE_K
991      * GM_NON_UNITY_DIAGONAL
992      * GM_EXTRA_DIAGONAL
993      * GM_BOLUS_ADVEC
994    in conjunction with data.gmredi parameters to be checked in
995    in a few minutes under verification/carbon/code/
996    
997    checkpoint47f_post
998    Merging from release1_p10:
999    o modifications for using pkg/exf with pkg/seaice
1000      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1001        and SEAICE_EXTERNAL_FLUXES
1002      - pkg/exf CPP options EXF_READ_EVAP and
1003        EXF_NO_BULK_COMPUTATIONS
1004      - usage examples are Experiments 8 and 9 in
1005        verification/lab_sea/README
1006      - verification/lab_sea default experiment now uses
1007        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1008    
1009    checkpoint47e_post
1010    o created a tag prior to creating a branch
1011    
1012    checkpoint47d_post
1013    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1014      at the bottom boundary had an erroneous half slip boundary condition
1015    o added bottom drag and no slip boundary condition capabilities to
1016      oceanic pressure coordinates code
1017    o added new verification experiment global_ocean_pressure, this experiment is
1018      also described in the tutorial section of the manual
1019    checkpoint47d_pre
1020    
1021    checkpoint47c_post
1022    o Added a verification experiment for a global cubed-sphere ocean run
1023      -  verification/global_ocean.cubed32x32x30
1024      -  uses pkg/therm_seaice and pkg/bulk_forcing
1025    
1026    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1027    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1028      when using P-coordinate; only implemented for atmospheric config.
1029    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1030      NOTES: requires option NONLIN_FRSURF to be "#define".
1031    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1032    
1033    checkpoint47b_post
1034    Merging from release1_p9:
1035    o pkg/seaice
1036      - removed GOTO's and added taf directives
1037      - double precision constants to reduce the g77 (Linux)
1038        to F77 (SGI) differences reported in release1_p8
1039    o tools/genmake
1040      - added SGI options
1041    o verification/testscript
1042      - updated to that of checkpoint47a_post
1043    o verification/global_ocean.90x40x15/input/eedata
1044      - modified for SGI f77 compatibility
1045    o verification/lab_sea
1046      - added description of sea-ice model
1047      - added missing matlab routines
1048      - added test of thermodynamics parallelization
1049    
1050    checkpoint47a_post
1051    o new pkg: aim_v23
1052     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1053       for now, keep the same surface forcing as before.
1054     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1055     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1056     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1057    o add diagnostic of surface correction term in monitor output
1058    
1059    o bulk_force and therm_seaice
1060    - Two packages:  bulk_force (Bulk forcing)
1061      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1062    - Earlier integration from Stephaine Dutkiewicz
1063      and Patrick Heimbach.
1064    - Two ifdef statements for compile time,
1065       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1066    
1067    checkpoint47
1068    differentiable version of checkpoint46n_post
1069    o bug fix in quasihydrostaticterms
1070    o * "clean" adjoint code (in terms of extensive recomputations)
1071        can now be obtained for all GMREDI options (i.e. for
1072        - GM_VISBECK_VARIABLE_K
1073        - GM_NON_UNITY_DIAGONAL
1074        - GM_EXTRA_DIAGONAL
1075        - GM_BOLUS_ADVEC )
1076      * However, wrong gradient check problem remains unsolved.
1077      * New CPP options have been introduced for different
1078        tapering schemes
1079    o external_fields_load now part of differentiation list
1080    o pressure needs multiple storing;
1081      would be nice to have store_pressure at beginning or
1082      end of forward_step, e.g. by having phiHyd global (5-dim.)
1083      (NB: pressure is needed for certain cases in find_rho,
1084      which is also invoked through convective_adjustment).
1085    o recomputations in find_rho for cases
1086     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1087    o #define ATMOSPHERIC_LOADING should be differentiable
1088    o ini_forcing shifted to begining of initialise_varia
1089    o Incorporating QNVS line search routines into MITgcm
1090      (this is separate code, and therefore not under pkg)
1091      lsopt/, optim/
1092    o Updated verification/carbon/
1093      - #define GM_VISBECK_VARIABLE_K
1094      - GM_taper_scheme    = 'ldd97'    
1095    
1096    checkpoint46n_post
1097    Merging from release1_p8:
1098    o verification/natl_box:
1099      updating new external_fields_load routine
1100    o New package: pkg/seaice
1101      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1102      The sea-ice code is based on Hibler (1979-1980).
1103      Two sea-ice dynamic solvers, ADI and LSR, are included.
1104      In addition to computing prognostic sea-ice variables and diagnosing
1105      the forcing/external data fields that drive the ocean model,
1106      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1107      The implied surface heat flux is then stored in variable
1108      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1109      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1110      non-local transport term.  Because this call precedes model
1111      thermodynamics, temperature under sea-ice may not be "exactly" at
1112      the freezing point by the time theta is dumped or time-averaged.
1113      N.B.: fairly large differences in accuracy occur across
1114            different platforms/compilers; comparison between
1115            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1116            generated output gives:
1117       T           S           U           V
1118      C D M    c        m  s        m  s        m  s        m  s
1119      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1120      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1121      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1122    
1123      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1124    o GAD:
1125      - generated new common blocks to account for call of
1126        same gad routines with differing traceridentities
1127        (needed to modify tracerIdentity indices in GAD.h)
1128      - generated separate common blocks for case useCubedSphereExchange
1129        (Department of Futurology)
1130      - parameter lists to gmredi_?transport: added tracerIdentity
1131      - added new key indices to tamc.h
1132    o external_fields_load:
1133      - added this routine to TAF list
1134      - needed to make some common blocks global and additional storing
1135        along the same lines as exf package (checkpoint_lev?_directives.h)
1136    o exf:
1137      updated external forcing package
1138      - bug fixes carried over from ecco-branch
1139        (missing OBCS_OPTIONS.h in two routines)
1140      - enable easy to use "no forcing".
1141      - added exf I/O for atmospheric loading
1142      - added exf I/O for runoff data
1143      - transfered scaling between exf <-> MITgcm to exf namelist
1144    o Adding new verification experiment global_with_exf.
1145      This verification experiment is almost identical to the
1146      global_ocean.90x40x15 experiment, except that it uses
1147      the exf (and cal) package instead of the
1148      external_fields_load routine (cf README file).
1149    
1150    checkpoint46m_post
1151    o modified testscript to return -- when there are no lines of "%MON" output
1152    o added new flag "quasiHydrostatic" for QH mode
1153      and new routine quasihydrostaticterms()
1154    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1155      New routine: mom_u_coriolis_nh()
1156    o fixed sign of non-hydrostatic metric terms in u and v equations.
1157      Depend on correct sign of gravitySign.
1158    o added work.pc* to .cvsignore in aim directories using ifc
1159    o introduced flag for controllin non-hydrostatic metric terms
1160    o removed gravitySign from PARM04
1161    o switched to g77/ifc from pgf77 in aim experiments
1162    
1163    checkpoint46l_post
1164    o made convective adjustment work with pressure coordinates:
1165     - changed the direction of k-loop in convective_adjustment.F for the
1166       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1167     - adjusted the reference pressure k-index in convective_adjustment.F
1168     - adjusted the convection condition in convect.F (in analogy to
1169       calc_ivdc.F)
1170     - convective_adjustment no longer computes anything on the halos
1171     - removed the warnings about negative salinity from find_rho.F and
1172       find_alpha.F; instead the new routine look_for_neg_salinity, called
1173       at the beginning of find_rho, find_alpha, and find_beta, does a
1174       check of the entire slice, if CPP-option
1175       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1176    checkpoint46l_pre
1177    
1178    checkpoint46k_post
1179    o fixed the verification/global_ocean.90x40x15 experiment:
1180     - new bathymetry (the world according to A., JMC, and M.)
1181     - new initial fields and forcing fields (*.bin files)
1182     - new POLY3.COEFFS (for the next release one should switch to a full
1183       equation of state: JMD95P or MDJWF)
1184     - fixed several errors and redundancies in the data file
1185     - experiment uses looped cells
1186     - added matlab directory with diagnostic scripts for plotting of output
1187    
1188    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1189     - read AIM physics parameters from a file (data.aimphys)
1190     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1191    
1192    checkpoint46j_post
1193    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1194    o move wVel computation at the end of the time step, in S/R integr_continuity
1195    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1196    o update timeave pkg for wVel diagnostic.
1197    checkpoint46j_pre
1198    
1199    checkpoint46i_post
1200    o Clean up AIM package (and keep the results unchanged):
1201      include CPP_OPTION and use IMPLICT NONE in all routines ;
1202      declare all the variables _RL ; use _d 0 for all numerical constants.
1203      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1204    
1205    checkpoint46h_post
1206    o cleaned up the use of rhoNil and rhoConst.
1207      - rhoNil should only appear in the LINEAR equation of state, everywhere
1208        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1209        and the dynamical equations are all divided by rhoConst
1210    o introduced new parameter rhoConstFresh, a reference density of fresh
1211      water, to remove the fresh water flux's dependence on rhoNil. The default
1212      value is 999.8 kg/m^3
1213    o cleanup up external_forcing.F and external_forcing_surf.F
1214      - can now be used by both OCEANIC and OCEANICP
1215    checkpoint46h_pre
1216    
1217     Added code to convert surface volume flux (fresh water) into
1218     a mass flux when using P coordinates in the ocean (OCEANICP).
1219     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1220    
1221    checkpoint46g_post
1222    o Include a new diagnostic variable phiHydLow for the ocean model
1223      - in z-coordinates, it is the bottom pressure anomaly
1224      - in p-coordinates, it is the sea surface elevation
1225      - in both cases, these variable have global drift, reflecting the mass
1226        drift in z-coordinates and the volume drift in p-coordinates
1227      - included time averaging for phiHydLow, be aware of the drift!
1228    o depth-dependent computation of Bo_surf for pressure coordinates
1229      in the ocean (buoyancyRelation='OCEANICP')
1230      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1231        Theta, Salinity, and Pressure in the parameter list. This routine is
1232        presently contained in find_rho.F. This routine does not give the
1233        correct density for 'POLY3', which would be a z-dependent reference
1234        density.
1235    o cleaned up find_rho
1236      - removed obsolete 'eqn' from the parameter list.
1237    o added two new verification experiments: gop and goz
1238      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1239    checkpoint46g_pre
1240    
1241    checkpoint46f_post
1242    o Enable tangent linear (forward mode) gradient checks:
1243      - extended active file handling to g_... files
1244      - added TANGENT_SIMULATION to theSimulationMode
1245      - extended grdchk package accordingly
1246    o added tangent linear setup in verification/carbon/code_ftl
1247    o added adjoint setup in verification/front_relax/code_ad
1248    
1249    checkpoint46e_post
1250    o Added new equation of state -> MDJWF
1251      - EOS of McDougall et al., 2002, JAOT, submitted
1252      - caveat: the equation of state is only valid for a smaller (more
1253        realistic?) range of values than JMD95P/Z and UNESCO
1254      - added masks to the calculation of pressure in store_pressure
1255      - added more check values for density in check_eos (ini_eos.F), some of
1256        the old check values are out of the range of the MDJWF-eos, so don't
1257        expect perfect matches for those
1258    checkpoint46e_pre
1259    
1260    checkpoint46d_post
1261    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1262      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1263      case of pressure coordinates. eosType='JMD95Z' in
1264      combination with buoyancyRelation='OCEANICP' now causes an error.
1265    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1266      in find_alpha/beta.
1267    checkpoint46d_pre
1268    
1269    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1270      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1271    
1272    checkpoint46c_post
1273    o Changes necessary for ocean in p-coordinates
1274     -  Added new buoyancy relation = 'OCEANICP'
1275     -  Added new parameters = gravitySign (this used to be contained inside
1276        the factor dRdZ which I added when we first switched to R coordinates).
1277     X GM/Redi is not compatible (yet)
1278     X bottom drag and no-slip need to be debugged.
1279    checkpoint46c_pre
1280    
1281    checkpoint46b_post
1282    o Added new equation of state -> JMD95Z and JMD95P
1283      - EOS of Jackett and McDougall, 1995, JAOT
1284      - moved all EOS parameters into EOS.h
1285      - new routines ini_eos.F, store_pressure.F
1286    o Added UNESCO EOS, but not recommended because it requires
1287      in-situ temperature (see JMD95)
1288    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1289      unesco.f to be used with POLY3
1290    checkpoint46b_pre
1291    
1292    checkpoint46a_post
1293    o Added (atmospheric) pressure loading
1294      - new field in FFIELDS.h, etc...
1295      - new cpp flag ATMOSPHERIC_LOADING
1296    o Changed hFacC to _hFacC in calc_phi_hyd.F
1297    o Added SHORTWAVE_HEATING to some files for consistency
1298    checkpoint46a_pre
1299    
1300    checkpoint46
1301    further merges from release1_p5
1302    o new ctrl package
1303      - adopted from ECCO environment to enable optimization
1304      - added Eliassen Palm fluxes to controls
1305    o added Eliassen Palm flux controls to gradient check package
1306    o cost package
1307      - Compatible with new ctrl package
1308      - added Eliassen Palm cost hooks
1309      - modif's of existing cost functions
1310    o Adjoint-related bug fixes in kpp:
1311      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1312      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1313    o autodiff package
1314      - flow directives:
1315        + new for S/R do_the_model_io
1316        + enhanced for S/R checkpoint
1317        + new gmredi.flow
1318      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1319        disable adcommon.h/g_common.h by default.
1320      - fixed problem for adjoint of global_max
1321    o modified verification/carbon/
1322    o New setup for adjoint of global_ocean
1323    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1324    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1325    o incorporated hooks for sponge layer code (external_forcing.F)
1326    
1327    checkpoint45d_post
1328    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1329    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1330      (affects plume_on_slope "cg2d" output)
1331    o add new parameter deltaTfreesurf for free-surface time stepping
1332    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1333    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1334    o change phiMin in exp1 (to agree with documentation)
1335    o add new flags:
1336     - T,S forcing inside/outside Adams-Bashforth
1337     - turn off temp,salt advection and/or forcing
1338     - for each tracer, define internal flag for multiDimAdvection & A-B
1339    o monitor: change definition of KE to check conservation of Energy
1340    
1341    checkpoint45c_post
1342    o Removed f90 comments ("!")
1343    o Modified initialisations to enable exf package for MITgcm
1344      (without invoking ECCO_PACKAGE).
1345    o modifications to gradient check package (Martin Losch)
1346      - enable centered differences
1347      - modified format of standard output
1348    
1349    checkpoint45b_post
1350    o cleaned exchange calls in cg2d
1351    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1352    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1353      to configure barotropic setup (Martin Losch)
1354    o moved some initialisations within bi,bj loop in dynamics
1355      (TAF flow dependency)
1356    o in initialise_varia, moved call packages_init_variables
1357      before convective_adjustment_init
1358      (corresponding adjustment of TAF tape initialisation).
1359    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1360    
1361    checkpoint45a_post
1362    o compute Rho over the whole domain (extend iMin,jMin indices)
1363    o specific exchange for X-slice domain (case Ny=1)
1364    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1365    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1366    
1367    checkpoint44h_post = checkpoint45
1368    o Fix to restore differentiability:
1369      place at which packages_init_variables is called in
1370      initialise_varia is crucial for reverse control flow.
1371    o modifications in GMRedi to enable stable adjoint
1372      (corresponding modif's in thermodynamics, dynamics)
1373    o added missing hook for sponge layer code in external_forcing
1374    o modified test cost functions
1375    o storing in gad_advection (plus removal of write(0,*)!
1376    o missing headers TR1.h added in convective_adjustment routines
1377    o errorMessageUnit set non-equal zero in eeboot
1378      (conflict on some platforms, e.g. IBM SP3)
1379    o modified carbon verif.
1380    
1381    checkpoint44h_pre
1382    o vertical grid option: allow to put the Interface at the middle between
1383      2 cell-centers ; replace delZ in pkg/kpp by drF.
1384    o GM Advective form: Tracers are advected using the residual transport (=
1385      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1386    
1387    checkpoint44g_post
1388    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1389      results) ; ifdef missing in thermodynamics.F
1390    
1391    checkpoint44f_pre,checkpoint44f_post
1392    o added PTRACERS package
1393      This allows an arbitrary number of passive tracers to be integrated
1394      forward simultaneously with the dynamicaly model.
1395      + Implemented so far:
1396        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1397        - I/O and checkpointing
1398        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1399      + Not implemented so far:
1400        - KPP
1401        - OBCS
1402      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1403        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1404        line in data.pkg.
1405      + This package is disabled by default since it increases storage.
1406    
1407    
1408    o testscript: added -cleanup option
1409    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1410                 b) enable to filter 2D fields.
1411    
1412    checkpoint44e_pre,post
1413    o re-wrote convective adjustment to use pre-calculated weights
1414      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1415      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1416      Original calls to convect() still in place.
1417    
1418    chkpt44d_pre,post
1419    o added missing EXCLUDE_MONITOR flags
1420    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1421      (incompatible typ in MIN/MAX expressions caused problems
1422      on IBM SP3)
1423    o in genmake added variable MAKEDEPEND
1424      plus resetting for case SunOS
1425    o added timer_stats.c routine for IBM SP3
1426    o removed variables in dynamics
1427    !!! I forgot to create tag chkpt44d_pre !!!
1428    !!! But chkpt44d_pre = chkpt44c_post    !!!
1429    
1430    o real fresh water flux implemented with non-linear free-surface.
1431    
1432    chkpt44c_pre,post
1433    o few fix (mask in shap_s2, EmPmR in external_field_load,
1434      USE_NATURAL_BCS in solve_for_P);
1435    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1436    
1437    checkpoint44b_pre/_post
1438    o merge of relevant stuff from the ecco-branch:
1439      - genmake: removed $S64 overwrite for case SunOS
1440      - pkg/exf: update and corrections for field swapping and obcs
1441      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1442                  harmonized between ECCO and MITgcm
1443      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1444                      updated checkpointing_lev... lists for obcs
1445      - model/src: minor changes in forward_step, plot_field
1446                   added directive for divided adjoint in the_main_loop
1447      - pkg/mdsio: added mdsio_gl_slice
1448    
1449    o check parameters & config (chkpt44a_pre,post)
1450    o OBC and NonLin_FrSurf.
1451    
1452    checkpoint44
1453    o fix bug in mom_vi_del2uv
1454    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1455    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1456    o update AIM experiments (NCEP input files)
1457    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1458    o added some stuff for AD
1459    
1460    checkpoint43
1461    o added two new advection tests
1462    o added global 4x4 degree ocean test
1463    o added test of H&S94 with free surface on cube
1464    o some final mods for gradient check, adjoint,...
1465    
1466    checkpoint42
1467      Fixed AD-related problems:
1468    o Store directives up-to-date with re-arranged Adams-Bashforth
1469      (mainly thermodynamics.F)
1470    o New store directives for multi-dim. advection schemes
1471      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1472      * new common block and key passkey
1473      (mainly gad_advection.F)
1474    o Modified store directives for split of dynamics/thermodynamics
1475      for the case ALLOW_KPP
1476    o Cleaned argument list for timestep_tracer.F
1477    
1478    checkpoint41
1479    o re-formatted/added comments in prologues of key subroutines
1480      to work with protex
1481    
1482    checkpoint40
1483    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1484    o added FLT (floats) package from Arne along with demo. experiment
1485    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1486      implementation of forward-in-time forcing terms
1487    o more mods for non-linear free-surface including new variable
1488    o modified multi-dim method to work on cube
1489    o bug fix in KPP (from DM)
1490    
1491    checkpoint40pre9
1492    o added DST advection schemes
1493    o fix MPI bug on SGI's
1494    o modifications for non-linear free-surface
1495    o fixed conditionals for fixed flow/passive tracer only mode
1496    o added tension/strain form of stress tensor
1497    o changes to commenting of arguments for TAF/TAMC
1498    o added/updated many matlab scripts
1499    o added multi-dimensional advection method for tracers
1500      
1501    checkpoint40pre8
1502    o new package rw/
1503      Added method for dumping intermediate local arrays:
1504      mdsio_writetile - same as mdsio_writefield except works from inside
1505                        bi,bj loop
1506      mdsio_writelocal - same as mdsio_writetile except works for local
1507                         arrays
1508      write_local_r? - higher-level wrapper for mdsio_writelocal
1509      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1510      Example given at end of mom_vecinv.F that dumps some local arrays.
1511    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1512      control flux-form versus vector invariant code.
1513      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1514      or genmake -DISABLE ...
1515    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1516      (additional storing is now needed for case vecinv;
1517      currently nothing implemented to switch this storing off
1518      in case fluxform is used since no CPP flag available).
1519    
1520    checkpoint40pre7
1521    o bug fix in dynamics.F
1522      calc_viscosity called before k=1,Nr loop.
1523    o added some #ifdef's ALLOW_PASSIVE_TRACER
1524    o cleaned initialisations in ctrl_map_ini
1525      related to TAF
1526    
1527    checkpoint40pre6
1528    o split dynamics into thermodynamics & dynamics
1529    o corresponding split of calc_diffusivity into
1530      calc_diffusivity, calc_viscosity
1531      (kpp_calc_diff, kpp_calc_visc).
1532    o Added diffkr, kapgm to control variables
1533    o bug fix in gmredi_slope_limit for ldd97
1534    
1535    checkpoint40pre5
1536    o proper initialization of Adams-Bashforth time stepping
1537      + uses forward step for very first step of model (iter=0)
1538    o re-generated *all* output since almost all output is modified by this
1539      change (sorry but we've been putting this one off for about 2 years)
1540      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1541        *not* regenerated since they are already out of date and I don't
1542        want to create the impression that they are suddenly working.
1543    o removed KAP stuff for DEC's
1544    o modified/added many .cvsignore files in */code and */input
1545    o added new expt "solid-body.cs-32x32x1"
1546      + this uses an alternative form of ini_curvilinear_grid.F which
1547        is not necessarily any better than the current one...
1548    
1549    checkpoint40pre4
1550    o added re-initialisations of utrans,vtrans,rtrans in
1551      calc_common_factors which are crucial for TAF.
1552    o extended iMin,jMin range for calc_common_factors,
1553      calc_diffusivity
1554    o added option ALLOW_PASSIVE_TRACER
1555    o a few minor updates and fixes
1556    
1557    checkpoint40pre3
1558    o created calc_gtr1.F for gad package
1559    o split the_main_loop and re-introduced forward_step
1560    o some recomputations of nIter0 for TAMC
1561    
1562    checkpoint40pre2
1563    o Updated to latest branch of AJA, JMC
1564    o Added gradient check package
1565    o Added routines for passive tracer handling
1566    o Added carbon sequestration sensitivity experiment
1567    
1568    checkpoint39
1569     o Modifications and fixes to support TAMC
1570       (mainly missing or wrong directives)
1571     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1572       in addummy_in_stepping
1573     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1574     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1575     o Included following packages:
1576       cal: calendar
1577       exf: external forcing
1578       ecco: essential routines to control use of cal, exf
1579             (NB: this is not the full ECCO environment)
1580     o disabled some packages by default in genmake
1581    
1582    checkpoint38
1583     o see notes_c37_adj.txt
1584     o corrected wrong layer index in external_forcing_t
1585     o replaced the_main_loop/forward_step by the_main_loop
1586     o removed forceoutput from write_state
1587       (replaced criteria for initial/final state)
1588     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1589    
1590    checkpoint37
1591     o mdsio.F routine split and packaged in pkg/mdsio
1592       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1593        used unless genmake -disable=mdsio)
1594     o allow a more precise surface-geopotential gradient for the atmosphere
1595       taking into account the change in space of Alpha (=1/rho) at the surface.
1596     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1597       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1598     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1599       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1600       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1601     o Time-Average diagnostics defined as a pseudo package "timeave".
1602     o pickup files : old pickup (before c35) did not work with new code (c35
1603       and after) unless activating 2 commented lines in initialise-varia.
1604     o Non-Hydrostatic pickup file Pb fixed.
1605     o bug with Rigid-lid version (since c35) fixed.  
1606    
1607    checkpoint36
1608     o implement Crank-Nickelson barotropic time-stepping
1609     o recover Time-Average diagnostics
1610     o fix Pb in checkpoint (PR#19)
1611     o AIM become a standard package ; clean unused CPP_kees
1612    
1613    checkpoint35
1614     o subtantial rewrite of dynamics.f
1615     o allows staggered time-stepping
1616     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1617     o added bottom drag (linear + quadratic)
1618    
1619    checkpoint34
1620     o Modified exchange routines for correct reverse simulation.
1621     o Added verification output to comply with bug fix in impldiff.F
1622       as of c33 (exp2, natl_box).
1623     o Corrected store directives in dynamics.F
1624     o Corrected array boundaries in impldiff.F
1625     o Corrected array dimensions in gmredi.
1626       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1627     o Added routine GLOBAL_SUM_INT to global_sum.F
1628     o Added mdsio_gl.F for ECCO purposes.
1629    
1630    checkpoint33
1631     o Fixed bug in lower BC in impldiff.F
1632     o Fixed confusion about units of forcing arrays in FFIELDS.h
1633       namely Fu,Fv,Qnet,Qsw,EmPmR:
1634       - Removed verification/natl_box/code/external_fields_scale.F
1635         (did not differ from that in model/src)
1636       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1637         (see FFIELDS.h for description)
1638       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1639         kpp_calc.F and kpp_transport_t.F
1640       - Removed model/src/external_fields_scale.F and calls to it
1641       - verification/natl_box uses flux data with "atmospheric" sign so
1642         a special version of external_fields_load.F is used to
1643         change the data as it's read in. This way, the arrays
1644         have the right units and signs at all times tha a user could
1645         possibly use them.
1646     o Corrected genmake to delete a temporary file during configuration
1647    
1648    checkpoint32
1649     o Scaling of forcing fields moved from external_forcing.F to
1650       external_fields_scale.F, called directly after loading fields.
1651     o Surface relaxation terms added to surface tendency fields in
1652       extra subroutine.
1653     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1654       fields.
1655     o Changes in GMRedi to comply with packaging structure.
1656     o Modifications and bug fixes in KPP package.
1657     o Verification experiment for KPP added (verification/nat_box/)
1658    
1659    checkpoint31
1660     o Packages interface brought in line with defined standard
1661       -> new routines packages_...F
1662       -> changes in initialise_fixed.F, initialise_varia.F
1663       -> enables initialisation interface for ECCO package
1664     o Rescaling of external forcing fields immediately after read
1665       (removed from external_forcing.F)
1666       -> new: surface_fields_scale.F
1667       -> affects ini_foorcing.F, external_fields_load.F
1668     o Computation of surface tendencies before tendency updates.
1669       -> new: external_forcing_surf.F
1670     o Change of variable names useGMRedi, useKPP, useECCO
1671     o Further changes in dynamics.F, impldiff.F for TAMC
1672     o Tested for experiments 0, 2, 4.
1673       - not yet tested for GMRedi.
1674       - not yet tested for KPP.
1675    
1676    checkpoint30
1677     o Updates for OBCs
1678     o New experiment for test OBCs (internal_wave)
1679     o New output.txt in verification/exp4/results/
1680     o Updates for KPP: calculation of viscosity corrected, new variables
1681       kpp_dumpFreq and kpp_taveFreq
1682     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1683       and entry for T90 in genmake
1684    
1685    checkpoint29
1686     o packaged KPP and GM/Redi
1687    
1688    checkpoint28
1689     o Corrected initialization of hFacMin for difference vertical coordinates
1690     o Modified calculation of partial cell thickness to more robust algorithm
1691     o config_summary.F: replaced write_1D_... by write_0D_...
1692       read_write.F: added subroutines write_0D_...
1693     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1694       included some initialisations required for TAMC.
1695     o routine calc_isoslopes: modified sqrt computation to make it
1696       differentiable for zero argument.
1697     o routines dynamics, impldiff:
1698       included store directives and tape key computations required for TAMC.
1699     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1700    
1701    checkpoint27
1702     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1703       formulation works properly with variable resolution.
1704     o restructured the calling tree between the_model_main() and dynamics()
1705     o split initialise() into initialise_fixed() and initialise_varia()
1706     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1707       in new routine ini_psurf()
1708    
1709    checkpoint26
1710     o moved some #ifdef in optional routines to encompass everything
1711       except the argument declarations. This was using up some memory.
1712     o fixed macros like _ADT to work with both versions of Linux cpp
1713     o cleaned up some unused and uninitialized variables
1714       (helps when debugging with strict compile options)
1715     o split up CPP_EEOPTIONS.h into options and macros
1716       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1717     o patch for 2 processor JAM mode
1718    
1719    checkpoint25
1720     o updates for OBCs and NH
1721     o dramatically reduced memory usage
1722     o added "JAM" routines for use on Artic network
1723     o parameterization of convection by implicit vertical diffusion
1724     o added a diagnostic of convective index
1725     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1726       (this is was partly for OBCs and NH but also in anticipation of
1727        an explicit free-surface option)
1728     o initial state input files for U and V
1729    
1730    checkpoint24
1731     o Removed some spurious "REAL"s
1732     o Updated KPP to latest version from JPL
1733     o Added a COS(latitude) in horizontal viscosity
1734    
1735    checkpoint23
1736     o Added del^4 diffusion for salt and temperature
1737     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1738    
1739    checkpoint22
1740     o Made many small changes: implicit none, format(i5), etc...
1741     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1742    
1743    checkpoint21
1744     o Introduced new I/O package that supports direct-access records (mdsio.F)
1745     o Split-up mid-level I/O routines
1746     o Updated input data for experiments 0,1,2,4 and 5
1747     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1748    
1749    checkpoint20
1750     o Tidied up open-boundaries some more
1751     o Added non-hydrostatic code
1752     o Fixed some input data
1753     o Modified MPI start-up to work in "coupled" context.
1754    
1755    checkpoint19
1756     o Tidied up directory structure for verification experiments.
1757     o Added new code for open boundaries.
1758     o Corrected advective terms near boundaries.
1759     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1760     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1761     o Split default parameters out of ini_parms.F into set_defaults.F.
1762    
1763    checkpoint18
1764     o Further changes for optional code generation with
1765       CPP - ugh!
1766    
1767    checkpoint17
1768     o Beginning to incorporating modularity
1769       for supporting atmos. and ocean configs.
1770     o Small changes for TAMC complinace
1771     o New ultra simple test case. Barotropic box
1772       configuration "exp0".
1773    
1774    checkpoint16
1775     o Minor changes to exchange routines to support
1776       accumulation in reverse mode. Adjoint of an
1777       assignment is an addition.
1778     o Changes to support compilation by TAMC (LR(1)
1779       syntax) and by g77 under Linux ( 72 character
1780       limit ).
1781    
1782    checkpoint15
1783     Rewrote exchange routines to allow
1784     o General tile <-> tile connectivity.
1785     o TAMC reverse mode flag ( is this really needed? )
1786     o Variable width overlap and exchange region widths.
1787     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1788       shmput/shmget, VIA, SYSV shmem and every other cool
1789       communication method.
1790    
1791    checkpoint14
1792     Consistent isomorphism chages made. These allow dynamical core
1793     to support both pressure and meters as a vertical coordinate.
1794    
1795    checkpoint13
1796     Release which corrects global_max problem and a couple
1797     of KGM time-averaging diagnostic errors. Also contains
1798     a double-gyre experiment setup as well as the baseline
1799     4 degree global template. The double gyre template is
1800     organised to allow it to be applied automatically to
1801     the baseline configuration.
1802    
1803    branch-point-rdot
1804     A few tidy-ups have been made bt the real point of this
1805     check-point (excuse the pun) is to allow a branch to be
1806     made for the purposes of adding the rDot alterations.
1807     I don't want to commit the rDot to the main-trunk until
1808     we've actually tested it...
1809    
1810    checkpoint12
1811     Tidy up and added generic genmake script (formerly
1812     configure script).
1813     Released to testers.
1814    
1815    checkpoint11
1816     Re-arranged initialise() and introduced ini_vertical_grid()
1817     and ini_masks_etc().
1818    
1819    checkpoint10
1820     Introduced the configure script.
1821     Separated out the diags package.
1822     Added template for writing time-averages of tile/intermediate quantities.
1823     Updated SIZE.h in exp2 and made the data big-endian.
1824    
1825    checkpoint9
1826     MPI fix. Filename changes (meta/data). salbin*y stuff.
1827     General tidy-up.
1828     SST.bin SSS.bin added to verification/exp2
1829    
1830    checkpoint8
1831     Inludes time-dependant forcing and time-averaging.
1832     Works at 4x4 and 2.8125x2.8125 global
1833    
1834    checkpoint7-4degree-ref
1835     Branch from checkpoint7. Released for application to
1836     global modeling and general modeling - process studies, regional
1837     model etc..
1838     Configured for verification/exp2 - 4 degree global, two process.
1839    
1840    checkpoint7
1841     Created by cnh
1842     Simple 4 degree global simulation
1843     configuration.
1844     Includes climatological wind,
1845     hydrography, bathymetry etc
1846     Does not include Heat Flux and E-P
1847    
1848    checkpoint6
1849     Created by cnh
1850     merged checkpoint5 with CD and
1851     spherical polar code.
1852     Still some problems with GM Redi
1853     abd full topography.
1854    
1855    checkpoint5
1856     Created by AJA
1857     contains updates to GM Redi
1858     and reordered timestepping loop
1859     for Implicit Diffusion.
1860    
1861    checkpoint4
1862     Created by cnh
1863     Contains memory saving macros ( _rdxc etc..) for when
1864     grid variations are limited.
1865     Contains polynomial coeffs for EOS and knudsen program
1866     for generation.
1867    
1868  checkpoint3  checkpoint3
1869   Created by cnh   Created by cnh
1870   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 1883  checkpoint1
1883   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
1884   Added non-linear EOS   Added non-linear EOS
1885    
1886  baseline - Original checked in code  baseline
1887     Original checked in code
1888    

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