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revision 1.171 by jmc, Sun Jul 13 20:32:42 2003 UTC revision 1.334 by jmc, Sat Jul 24 02:47:35 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
7    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
8    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
9    
10    checkpoint54c_post
11    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
12      this affects (truncation error) output.txt of test-exp:
13       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
14    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
15    o change Qnet to always be the net heat flux, (+upward).
16      affects (truncation error) output of natl_box exp.: updated
17    o define the max number of passive tracers in PTRACERS_SIZE.h
18    o start to test mnc routinely in exp0
19    o add sea-ice loading (sIceLoad) as a new forcing field.
20    
21    checkpoint54b_post
22    o add testreport "-j JOBS" option for parallel builds (tested and pretty
23       impressive on Altix and Opteron systems)
24    o diagnostics can now write NetCDF files through the mnc package
25    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
26    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
27    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
28      affects (truncation error) output of lab_sea & natl_box exp.: updated
29    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
30    
31    checkpoint54a_post
32    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
33    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
34    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
35    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
36      + internal_wave (shift in writing cg2d_ini_res)
37    checkpoint54a_pre
38    
39    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
40      - modified verification/lab_sea and natl_box_adjoint accordingly
41    
42    checkpoint54
43    checkpoint53g_post
44    o prepare splitting of thermodynamics: store convect.counter in common block
45    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
46      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
47    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
48    o new parameter "nShapS": allow to treat differently S from T (nShapT)
49    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
50    o restore adjointability
51    
52    checkpoint53f_post
53    o modifications that affect AIM experiment results (update output.txt):
54      - no advection of S at top interface Nr (pkg/generic_advdiff)
55      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
56    o AIM pkg:
57      - include stability function into surf.Flux derivative relative to Tsurf
58      - calculate clear-sky radiation & surface temp. change (for diagnostics)
59    
60    checkpoint53e_post
61    o merged cylindrical coord configuration
62    o added rotating_tank experiment
63    checkpoint53e_pre
64    
65    checkpoint53d_post
66    o faulks upgraded: re-generate output.txt that have changed:
67       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
68    o Added Bryan and Lewis, 1979, vertical diffusivity profile
69    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
70    o added Sadourny discretization of Coriolis
71      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
72      - re-enabled use of omega3 (useAbsVorticity)
73    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
74      vector-invariant equations
75      - note: does *NOT* yet use same variable visc. for no-slip BC's.
76    o recoded the lateral boundary conditions for non-hydrostatic w, this time
77      hopefully without new bugs
78      - still to do: biharmonic friction for non-hydrostatic w
79    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
80    o regenerated output for global_ocean_ebm (using -ieee)
81    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
82      of mom_common/
83      - simple re-arrangement of instructions within computing loop
84    checkpoint53d_pre
85    
86    checkpoint53c_post
87    o new version of coupler for AIM+thSIce and Ocean models
88     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
89     - land: change Evaporation of snow
90     - aim with thSIce: fix bug in snow-precip.
91    o changes to calc_gw.F
92     - bug fix for w^2 term near the bottom boundary
93     - (hopefully) improve the lateral slip boundary condtions for use with
94        partial/looped cells
95      - because the bug fix changes two verification experiments anyway (exp5
96        and plume on slope), change the lateral boundary condition from half slip
97        to the value of no_slip_sides
98    o ebm package wasnt quite up to the parallel task. Fixed that.
99    o Adjoint of EBM package + verification
100      * TLM OK
101      * ADM not sufficient accuracy yet (needs further testing)
102    
103    checkpoint53b_post
104    o Commiting new energy balance model to repository
105      * package is pkg/ebm
106      * verif. is verification/global_ocean_ebm
107      * references are in ebm_driver.F
108    C      * X. Wang, P. Stone and J. Marotzke, 1999:
109    C        Global thermohaline circulation. Part I:
110    C        Sensitivity to atmospheric moisture transport.
111    C        J. Climate 12(1), 71-82
112    C      * X. Wang, P. Stone and J. Marotzke, 1999:
113    C        Global thermohaline circulation. Part II:
114    C        Sensitivity with interactive transport.
115    C        J. Climate 12(1), 83-91
116    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
117    C        Destabilization of the thermohaline circulation
118    C        by atmospheric eddy transports.
119    C        J. Climate 7(12), 1870-1882
120    o Will need long integration testing.
121    checkpoint53b_pre
122    
123    o created pkg/mom_common in preparation for variable viscosity code
124    o renamed and split ini_mnc_io
125    o pkg/land: only liquid water can diffuse or run-off
126    o AIM using land: soil wetness availability account for snow
127    o added printMapIncludesZeros to EEPARMS namelist
128    
129    checkpoint53a_post
130    o restore TAMC compatiility for exf_constants.h
131      (no usage of _d in .h)
132    o Additional storing in KPP in an attempt to fix
133      TAMC problem with adjoint of KPP code.
134      (no success...)
135      Identical code works fine with TAF.
136    o Fixed verification/natl_box_adjoint experiments.
137      Initial conditions for Experiments 4 and 5 are now
138      set to "SEAICE_initialHEFF=0", which is more reasonable,
139      and hence gives results closer to that of Experiment 2.
140      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
141    
142    checkpoint53
143    o stable checkpoint with up to date adjoint
144      TLM tests only run for 1st grdchk at the moment. Its unclear if
145      this is a code problem or a problem with resetting code for g_
146      variables that is being autogenerated wrong.
147      Otherwise:
148       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
149       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
150         are both still in chaos following their security messes.
151    
152    checkpoint52n_post
153    o various build (mostly genmake2) changes including:
154      - ability to build/run more easily within Cygwin and MacOS X
155      - more complicated Makefiles with a stronger dependence on Gnu Make
156    o pkg/seaice modifications
157      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
158        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
159        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
160      - changed proxy for geostrophic velocity and updated
161        verification/lab_sea/results/* accordingly
162      - removed ADI dynamic solver from pkg/seaice
163      - replaced all occurrences of 1/CSTICE or 1/CSUICE
164        they caused a segmentation fault under certain circumstances
165      - removed unused field WATR
166    o bug fix in exf-package:
167      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
168         now reflect that.
169    o small fixes in the cal-package:
170      - set reference date to first of January for the 'model'-calendar
171      - failing of cal_CheckDate in cal_FullDate now actually results in a
172        warning
173    o small modifications in exf-package to increase flexibility:
174      - change climtempfreeze from a constant to a runtime parameter that
175        is specified in data.exf_clim (default = -1.9)
176      - introduce runtime parameter windstressmax (default = 2.0) that is
177        specified in data.exf
178    o fix in pkg/thsice:
179      - update Evap (Tsf changes) to be consistent with Latent heat flux
180      - maintain snow precipitation unchanged (even if Tsf >=0).
181     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
182    
183    checkpoint52m_post
184    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
185      this does not change any of the results, because myIter=0 in swfrac always
186      lead to jwtype=2 (the default anyway), but the call makes little sense
187      as a default
188    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
189    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
190      atmospheric model (AIM) to use it ; add a "slab ocean" component.
191    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
192    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
193    o extending useSingleCpuIO option to work with new exch2 I/O format
194      - old-style, missing-tile I/O is still accessible by defining CPP
195        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
196    o monitor package can write to NetCDF files and/or STDOUT
197    o fix re-definition bug in MNC_GRID_INIT_ALL()
198    o doc/api_reference added
199      - a framework for building an API Reference Manual using all
200        the "protex" comments embedded in the code
201      - see pkg/generic_advdiff, pkg/mnc for examples
202    o MNC:
203      - make myThid the last argument for all subroutines
204      - new default for the grid files: NO halos
205      - add useMNC and other run-time flags
206      - separate per-file-group handling of the unlimited dimension
207      - early initialization of MNC w/ flags read at the eeboot stage
208        and lookup tables set in initialize_fixed
209      - write all MNC output to a freshly-created directory
210    o thermodynamics sea-ice (thsice) is now tested with testreport.
211    o test exp. advect_cs: use the standard cs32 grid ; update output.
212    o Added functionality to grdchk:
213      pick global i,j,k position (or nearest wet) where to perform check.
214    
215    checkpoint52l_post
216    o new land formulation:
217      a) use ground enthalpy as prognostic variable to ensure exact
218         energy conservation.
219      b) account for water temperature and for latent heat of freezing
220         in all processes (rain, run-off, ground storage)
221      c) compute surface and ground temperature implicitly.
222    o aim_v23 modification for new land model:
223      a) Treat separately land / ocean / sea-ice surface fluxes
224         to allow implicit computation of land & sea-ice surface temp.
225      b) add snow precipitation.
226    checkpoint52l_pre
227    
228    o fix problem (when 1 tile is empty) in min/max monitor.
229    o fix bug in timeAve (u,vZetatave in common block)
230    o no restoring terms under ice for pkg/seaice
231    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
232    o bug fix for pkg/seaice pickups
233    o change MNC call locations and add coordinate attributes
234    o mask vorticity at the corner ; affects global_ocean.cs output
235    o fix ini_curvilinear_grid ; test CS experiments with mpi
236    o aim.5l_cs: modify sea-ice fraction input file ; update output
237    o exf: Adding simple range check routine for exf fields after read
238    
239    checkpoint52k_post
240    o removed top-level directory "diags"
241      - we migrated these functions to pkg/timeave a long time ago
242    o fixed bug introduced in pkg/monitor
243    o accuracy ctrlprec = 32 insuffient for gradient checks using
244      averaged fields (I/O via cost_averages)
245      -> use ctrl.h in active_file*.F to control I/O precision.
246    o paramter list of CALL ADTHE_MAIN_LOOP
247    o added initial do_the_model_io to ecco
248    o set all ...Freq to zero after cost_final
249      taveFreq, dumpFreq, pChkptFreq
250    o MAIN and ECCO differentiability restored
251    
252    checkpoint52j_post
253    o fix nchklev in tamc.h for global_ocean...
254    o Bringing flow and store directives up-to-date
255    o Really weird thing!
256      call do_the_model_io from the_main_loop with parameters
257      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
258      TAF places a faulty re-call of initialise_varia
259      after cost_final call which should not be there!
260    checkpoint52j_pre
261    
262    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
263      error messages
264    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
265    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
266      debug output
267    o modfied mdsio_writefield.F to handle non-global files under exch2
268    o update AIM Cubed-Sphere exp (aim.5l_cs):
269      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
270    o update AIM Equatorial Channel exp:
271      use standard aim_v23 pkg and change the SST fields to be more realistic.
272    o globalFile now works with exch2
273    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
274      mon_vort3.F to make exch2 friendly with >1 tile per cube face
275    o limit timeave output for hi-res integrations
276    
277    checkpoint52i_post
278    o removed CPP_EEOPTIONS.h from verification/*/code
279    o updated the tiling for global_ocean_pressure
280    checkpoint52i_pre
281    
282    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
283      the old pkg/aim).
284    
285    checkpoint52h_pre
286    o shortened offending lines in exch2_send_rx?.template
287    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
288    o genmake2: add build & execute test for NetCDF code
289    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
290      old grid files, moved CPP_EEMACROS.h to pkg/exch2
291    o added useSingleCPUIO flag to monitor.F and mon_out.F
292    o added temporary hack for sea-ice dynamics on the cube:
293      metric terms are ignored and it is assumed that
294      there is no sea-ice on cube faces 1, 2, 4, and 5.
295    
296    checkpoint52f_post
297    o added exch2 cube routines to pkg/exch2
298    o modified hs94.cs-32x32x5 to use it
299    o added new grid files to hs94.cs-32x32x5
300    checkpoint52f_pre
301    
302    checkpoint52e_post
303    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
304      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
305    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
306      to work with implicit vertical advection and AB ;
307    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
308    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
309     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
310    checkpoint52e_pre
311    
312    o fix bug in impldiff when Nr=1 or Nr=2.
313    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
314    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
315    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
316      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
317    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
318    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
319    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
320    
321    checkpoint52d_post
322    o re-tiled many expts to allow comparison in multi-processor mode
323      - updated output accordingly
324      - changed hs94.128x64x5 to use intial T from file rather than use the
325        random number generator
326    o add infrastructure in model routines for fizhi and gridalt packages
327    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
328    o changes to permit hi-res, cubed-sphere, configuration
329      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
330      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
331      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
332        of surface winds for the cube
333      (A verification experiment, based on global_ocean.cs32x15, but with
334       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
335       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
336       complete with example surface forcing files and matlab scripts to look
337       at the output and compare it with that of global_ocean.cs32x15.)
338    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
339       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
340       to conform to the common rule.
341    o check-in the first version of the coupler + interfaces for multi-components
342       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
343       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
344       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
345       - ocean and atmos. share the same horizontal grid (no interpolation).
346       - exchanges between component and coupler is done in forward_step
347    o new verification experiment, cpl_aim+ocn:
348       coupled ocean - AIM atmosphere on cs32 grid.
349    
350    checkpoint52d_pre
351    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
352    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
353    
354    checkpoint52c_post
355    o Fixing OPTIONS files for use of exf:
356      - ALLOW_ECCO not needed
357      - ECCO_CPPOPTIONS.h should not be included from
358        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
359        as has been the case in the past
360      - All cal/exf related options are currently set in
361        single header file. Should remain so until we
362        agree on a consistent new policy.
363    o Removed all CPP options for cal package.
364      cal has no more CPP options.
365    o modified STOREs in GAD_ADVECTION
366    o corrected key comp. for passkey
367    
368    checkpoint52b_post
369    o new version: "thsice" of thermodynamic sea-ice pkg:
370     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
371     - modify fluxes but do not change theta directly;
372     - light cleaning of bulk_force pkg (still needed with thsice).
373     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
374       + output_thsice.txt to test thsice & bulk_force pkgs.
375    o put back grid & coriolis monitor output.
376    checkpoint52b_pre
377    
378    o call "do_the_model_io" at the beginning (=> dump initial state)
379    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
380    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
381      (need info on NUMBER_OF_PTRACERS)
382    o missing PTRACERS headers in some routines
383    o default tamc.h in pkg/autodiff supposed to crash
384      to ensure proper customization
385    
386    checkpoint52a_post
387    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
388      - moved surfaceTendencyTice from pkg/seaice to main code
389      - subroutine FREEZE_SURFACE now limits only surface temperature
390        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
391        => new output.txt for global_ocean.cs32x15 & global_with_exf
392      - keep the old version of FREEZE for backward compatibility;
393        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
394      - corresponding modifs for TAF directives
395    o added surface flux output variables to TIMEAVE_STATVARS
396    o time-averaged output for pkg/ptracers
397    o fix problem with ECCO-related divided adjoint
398      snapshot file was missing some ad-variables,
399      but no warning issued by TAF
400    
401    checkpoint52a_pre
402    o some bug fixes for #undef REAL4_IS_SLOW
403    
404    checkpoint52 = ecco_c52_e35
405    o after testing adjoints of checkpoint51u_post
406    
407    checkpoint51u_post
408    o this is the post-merge tag of the ecco-branch
409      (needs another clean checkout and re-testing)
410    o various natl_box_adjoint configs and results
411      but no input fields
412    o obcs adjoint not yet merged!
413    o adding ECCO global 1x1 and 2x2 degree configs
414    o updated/extended some store directives for seaice
415    o pkg/ecco now containes ecco-specific part of cost function
416    o top level routines the_main_loop, forward_step
417      supersede those in model/src/
418      previous input data.cost now in data.ecco
419      (new namelist ecco_cost_nml)
420    o in ctrl/ cleaned some cross-dependencies and updated CPP options
421    
422    checkpoint51t_post
423    o this is the pre-merge tag of the ecco-branch
424    
425    checkpoint51s_post
426    o cleanup: removed various obsolete #define-s
427    o pkg/grdchk
428      - renamed 'ph-grd 3' to 'grad-res'
429      - merged from ecco-branch
430        (remaining bug fixes for obcs gradient checks)
431      - additional high-precision output for testreport
432        (grep for 'precision_grdchk_result')
433    
434    checkpoint51r_post
435    o cleaned up or removed CPP_OPTIONS.h files
436    o updated results for some of the tests to reflect the new
437      optfiles (-ieee: -O0 instead of -O3)
438    
439    checkpoint51q_post
440    o cd_code:
441      - moved cd_scheme.F -> cd_code_scheme.F
442      - separate read_checkpoint from cd_code_ini_vars.F
443      - separated cd_code part from write_checkpoint
444      - updated AD_SOURCE, generated .flow
445      - added CD_CODE_VARS.h to the_main_loop
446      - Moving cd_code specific store dir.s to pkg/cd_code
447    o ctrl package totally restructured
448      - pack/unpack now optional and decoupled from
449        xx_/adxx_ I/O
450      - ctrl_pack/unpack cleaned
451        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
452      - confined inclusion of AD_CONFIG.h to where necessary.
453    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
454    
455    checkpoint51p_post
456    o create initial cd_code package
457      - WARNING: the initialization of fields within packages
458        is broken because INI_FIELDS (where READ_CHECKPOINT is
459        called) is called *before* PACKAGES_INIT_VARIABLES.
460        This seems to be backwards since
461        1) its important to initially zero the entire field including
462           the "halo" region
463        2) zeroing needs to be done *before* reading pickup info
464           and the pickup call might or might not happen in any
465           particular run
466      - this needs an overhaul for R2
467    o cleanup verification/*/code/GMREDI_OPTIONS.h
468    o cleanup testreport
469    
470    checkpoint51o_post
471    o bringing AD-related verif's up to date with genmake2
472      - carbon/
473      - global_ocean.90x40x15/
474      - hs.94.1x64x5/
475      - (front_relax/ )
476    o (more) consistent directory structure for AD-related verif.'s
477    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
478    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
479    o bug fix in find_alpha.F for MDJWF:
480      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
481        change rho -> rho-rhoConst
482      - replace call find_rho to find_rhonum
483    o initialisation of rFlx extended to full array (required by TAF)
484      and shifted to thermodynamics
485    o removed PTRACERS.h in ptracers routine
486    o added surfacetendencyPtr to S/R parameter list pracers_forcing
487    o Correcting initialisations for fVerU, fVerV.
488    o helping TAF to recognize dependency on kUp for
489      fVerU, fVerV
490    o Replacing delZ by delR in pkg/ctrl/
491    checkpoint51o_pre
492    
493    o undid all of cp51 pending some cleanups and discussion
494    o added the [#include "AD_CONFIG.h"] statement to all files that need
495       it for adjoint/tl #defines
496     o re-worked the build logic in genmake2 to support AD_CONFIG.h
497     o removed tools/genmake since it no longer works
498    
499    checkpoint51n_post
500    o modifications to make FREEZE flux visible to pkg/kpp
501      - moved surfaceTendencyTice from pkg/seaice to main code
502      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
503      - subroutine FREEZE now limits only surface temperature
504        (this means new output.txt for global_ocean.90x40x15,
505         global_ocean.cs32x15, and global_with_exf)
506    o added surface flux output variables to TIMEAVE_STATVARS
507    
508    checkpoint51n_pre
509    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
510    o added [#include "AD_CONFIG.h"] to all files that use the following
511      defines:
512      - ALLOW_ADJOINT_RUN
513      - ALLOW_TANGENTLINEAR_RUN
514      - ALLOW_ECCO_OPTIMIZATION
515    
516    checkpoint51m_post
517    o incorporating changes to get TAMC/TAF working in genmake2
518      - added new TAMC/TAF targets to the Makefile
519      - various cleanups related to package handling
520      - these changes should have no impact on the forward model
521    
522    checkpoint51l_post
523    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
524     - faster algorithm for cal_addtime.F
525     - higher precision arithmetic, where needed
526     - pkg/exf *startdate variables changed from calendar date to
527       model integration time
528    
529    checkpoint51l_pre
530    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
531    o enable to apply restoring on S & T only in a latitude band.
532    o update output (external_forcing_surf modif. change truncation errors)
533       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
534    
535    checkpoint51k_post
536    o change default to: useNHMTerms=.FALSE.
537     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
538       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
539     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
540        exp1, ideal_2D_oce
541     - change data file of oceanic exp (leave the results unchanged for now)
542       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
543    o set gravitySign automatically according to the vertical coordinate used
544      (and change sign: back to "logical" value: +1 when R increases downward)
545    o added an include barrier to the default CPP_OPTIONS.h and
546      removed the #include "PACKAGES_CONFIG.h" from it
547    o fix a bug in mom_fluxform (from chk51j_post)
548    
549    checkpoint51j_post
550    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
551    o adjusted some flow directives (dynamics, thermodynamics)
552    o added cubed-sphere case to test cost function
553    o heckpoint_lev?_directives.h now include
554      pkg-specific directives, whenever those are enabled.
555    o Moving pkg-specific flow directives to corresponding pkg
556      Moving pkg-specific differentiation list to corresponding pkg
557      Moving pkg-specific checkpoint-lev storing to corresponding pkg
558      ---> conventions are
559           - pkg_ad.flow
560           - pkg_ad_diff.list
561           - pkg_ad_check_lev?_dir.h
562    
563    checkpoint51i_post
564    o merge of the branch-genmake2
565      - knowingly breaks the older genmake
566      - automatic generation of all ALLOW_${PKG_NAME} defines
567      - new testreport supersedes older testscript
568    o large number of package inclusion and header cleanups
569    checkpoint51i_pre
570    
571    o new output for adjoin of global ocean vector invariant
572    o fix for checkpoint of thermodynamic seaice and bulk_force
573    o Steph gchem various cleanups
574    
575    checkpoint 51h_pre
576    o fixed some single quotes
577    o modify gchem pkg to be more versatile
578    o modifications to clean up dic pkg
579    o add pkg/cfc
580    
581    checkpoint51g_post
582    o provide links for ARPACK and ADM*TLM
583    o start removing verification/vero/
584    o update AD-related stuff
585      (in particular some IF-statements in model/src/ routines)
586    o adding to verification/global_ocean.90x40x15/ adjoint of
587      vector invariant setup
588    
589    checkpoint51f_post
590    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
591    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
592      of tracer Green's fucntions for ocean inversion project.
593    
594    checkpoint51f_pre
595    o Added on-the-fly spatial interpolation capability
596        "USE_EXF_INTERPOLATION" to pkg/exf.
597      - This is a temporary Cartesian-grid hack until
598        the super-duper ESMF coupler becomes available.
599      - See verification/global_with_exf/README for usage example.
600      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
601        flags and modified pkg/seaice accordingly.
602    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
603        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
604        non-local transport term.
605    
606    checkpoint51e_post
607    o pkg/mom_vecinv:
608      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
609      - add time-ave diagnostic of vorticity advection.
610    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
611    o atmospheric geopotential: - include water vapor effect;
612                                - use p^kappa in p* scaling.
613    o land pkg: read initial state from files.
614    o AIM : add stratospheric drag in the upper level
615    
616    checkpoint51d_post
617    o change function ILNBLNK (=> last non-blank char.) to return zero
618      (instead of the string length) when the string. char is empty
619  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
620    o modif's to restore TAMC compatibility
621      - avoid "_d" constructs in PARAMETER declarations
622      - avoid interrupting lines by comment lines
623    o Use cluster local disks for purely local I/O
624      vs. globally visible disks needed for ctrl stuff
625      (merged from ecco-branch)
626      - new active_file_loc... and mdsio_..._loc routines
627      - affected packages: autodiff, ctrl, grdchk, mdsio
628    
629  checkpoint51c_post  checkpoint51c_post
630  o introducing integer flag debugLevel  o introducing integer flag debugLevel

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