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revision 1.183 by edhill, Wed Oct 8 19:35:00 2003 UTC revision 1.326 by edhill, Thu Jul 8 16:27:31 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6  checkpoint 51i_pre  o diagnostics can now write NetCDF files through the mnc package
7    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
8    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
9    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
10      affects (truncation error) output of lab_sea & natl_box exp.: updated
11    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
12    
13    checkpoint54a_post
14    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
15    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
16    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
17    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
18      + internal_wave (shift in writing cg2d_ini_res)
19    checkpoint54a_pre
20    
21    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
22      - modified verification/lab_sea and natl_box_adjoint accordingly
23    
24    checkpoint54
25    checkpoint53g_post
26    o prepare splitting of thermodynamics: store convect.counter in common block
27    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
28      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
29    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
30    o new parameter "nShapS": allow to treat differently S from T (nShapT)
31    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
32    o restore adjointability
33    
34    checkpoint53f_post
35    o modifications that affect AIM experiment results (update output.txt):
36      - no advection of S at top interface Nr (pkg/generic_advdiff)
37      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
38    o AIM pkg:
39      - include stability function into surf.Flux derivative relative to Tsurf
40      - calculate clear-sky radiation & surface temp. change (for diagnostics)
41    
42    checkpoint53e_post
43    o merged cylindrical coord configuration
44    o added rotating_tank experiment
45    checkpoint53e_pre
46    
47    checkpoint53d_post
48    o faulks upgraded: re-generate output.txt that have changed:
49       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
50    o Added Bryan and Lewis, 1979, vertical diffusivity profile
51    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
52    o added Sadourny discretization of Coriolis
53      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
54      - re-enabled use of omega3 (useAbsVorticity)
55    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
56      vector-invariant equations
57      - note: does *NOT* yet use same variable visc. for no-slip BC's.
58    o recoded the lateral boundary conditions for non-hydrostatic w, this time
59      hopefully without new bugs
60      - still to do: biharmonic friction for non-hydrostatic w
61    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
62    o regenerated output for global_ocean_ebm (using -ieee)
63    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
64      of mom_common/
65      - simple re-arrangement of instructions within computing loop
66    checkpoint53d_pre
67    
68    checkpoint53c_post
69    o new version of coupler for AIM+thSIce and Ocean models
70     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
71     - land: change Evaporation of snow
72     - aim with thSIce: fix bug in snow-precip.
73    o changes to calc_gw.F
74     - bug fix for w^2 term near the bottom boundary
75     - (hopefully) improve the lateral slip boundary condtions for use with
76        partial/looped cells
77      - because the bug fix changes two verification experiments anyway (exp5
78        and plume on slope), change the lateral boundary condition from half slip
79        to the value of no_slip_sides
80    o ebm package wasnt quite up to the parallel task. Fixed that.
81    o Adjoint of EBM package + verification
82      * TLM OK
83      * ADM not sufficient accuracy yet (needs further testing)
84    
85    checkpoint53b_post
86    o Commiting new energy balance model to repository
87      * package is pkg/ebm
88      * verif. is verification/global_ocean_ebm
89      * references are in ebm_driver.F
90    C      * X. Wang, P. Stone and J. Marotzke, 1999:
91    C        Global thermohaline circulation. Part I:
92    C        Sensitivity to atmospheric moisture transport.
93    C        J. Climate 12(1), 71-82
94    C      * X. Wang, P. Stone and J. Marotzke, 1999:
95    C        Global thermohaline circulation. Part II:
96    C        Sensitivity with interactive transport.
97    C        J. Climate 12(1), 83-91
98    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
99    C        Destabilization of the thermohaline circulation
100    C        by atmospheric eddy transports.
101    C        J. Climate 7(12), 1870-1882
102    o Will need long integration testing.
103    checkpoint53b_pre
104    
105    o created pkg/mom_common in preparation for variable viscosity code
106    o renamed and split ini_mnc_io
107    o pkg/land: only liquid water can diffuse or run-off
108    o AIM using land: soil wetness availability account for snow
109    o added printMapIncludesZeros to EEPARMS namelist
110    
111    checkpoint53a_post
112    o restore TAMC compatiility for exf_constants.h
113      (no usage of _d in .h)
114    o Additional storing in KPP in an attempt to fix
115      TAMC problem with adjoint of KPP code.
116      (no success...)
117      Identical code works fine with TAF.
118    o Fixed verification/natl_box_adjoint experiments.
119      Initial conditions for Experiments 4 and 5 are now
120      set to "SEAICE_initialHEFF=0", which is more reasonable,
121      and hence gives results closer to that of Experiment 2.
122      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
123    
124    checkpoint53
125    o stable checkpoint with up to date adjoint
126      TLM tests only run for 1st grdchk at the moment. Its unclear if
127      this is a code problem or a problem with resetting code for g_
128      variables that is being autogenerated wrong.
129      Otherwise:
130       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
131       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
132         are both still in chaos following their security messes.
133    
134    checkpoint52n_post
135    o various build (mostly genmake2) changes including:
136      - ability to build/run more easily within Cygwin and MacOS X
137      - more complicated Makefiles with a stronger dependence on Gnu Make
138    o pkg/seaice modifications
139      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
140        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
141        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
142      - changed proxy for geostrophic velocity and updated
143        verification/lab_sea/results/* accordingly
144      - removed ADI dynamic solver from pkg/seaice
145      - replaced all occurrences of 1/CSTICE or 1/CSUICE
146        they caused a segmentation fault under certain circumstances
147      - removed unused field WATR
148    o bug fix in exf-package:
149      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
150         now reflect that.
151    o small fixes in the cal-package:
152      - set reference date to first of January for the 'model'-calendar
153      - failing of cal_CheckDate in cal_FullDate now actually results in a
154        warning
155    o small modifications in exf-package to increase flexibility:
156      - change climtempfreeze from a constant to a runtime parameter that
157        is specified in data.exf_clim (default = -1.9)
158      - introduce runtime parameter windstressmax (default = 2.0) that is
159        specified in data.exf
160    o fix in pkg/thsice:
161      - update Evap (Tsf changes) to be consistent with Latent heat flux
162      - maintain snow precipitation unchanged (even if Tsf >=0).
163     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
164    
165    checkpoint52m_post
166    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
167      this does not change any of the results, because myIter=0 in swfrac always
168      lead to jwtype=2 (the default anyway), but the call makes little sense
169      as a default
170    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
171    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
172      atmospheric model (AIM) to use it ; add a "slab ocean" component.
173    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
174    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
175    o extending useSingleCpuIO option to work with new exch2 I/O format
176      - old-style, missing-tile I/O is still accessible by defining CPP
177        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
178    o monitor package can write to NetCDF files and/or STDOUT
179    o fix re-definition bug in MNC_GRID_INIT_ALL()
180    o doc/api_reference added
181      - a framework for building an API Reference Manual using all
182        the "protex" comments embedded in the code
183      - see pkg/generic_advdiff, pkg/mnc for examples
184    o MNC:
185      - make myThid the last argument for all subroutines
186      - new default for the grid files: NO halos
187      - add useMNC and other run-time flags
188      - separate per-file-group handling of the unlimited dimension
189      - early initialization of MNC w/ flags read at the eeboot stage
190        and lookup tables set in initialize_fixed
191      - write all MNC output to a freshly-created directory
192    o thermodynamics sea-ice (thsice) is now tested with testreport.
193    o test exp. advect_cs: use the standard cs32 grid ; update output.
194    o Added functionality to grdchk:
195      pick global i,j,k position (or nearest wet) where to perform check.
196    
197    checkpoint52l_post
198    o new land formulation:
199      a) use ground enthalpy as prognostic variable to ensure exact
200         energy conservation.
201      b) account for water temperature and for latent heat of freezing
202         in all processes (rain, run-off, ground storage)
203      c) compute surface and ground temperature implicitly.
204    o aim_v23 modification for new land model:
205      a) Treat separately land / ocean / sea-ice surface fluxes
206         to allow implicit computation of land & sea-ice surface temp.
207      b) add snow precipitation.
208    checkpoint52l_pre
209    
210    o fix problem (when 1 tile is empty) in min/max monitor.
211    o fix bug in timeAve (u,vZetatave in common block)
212    o no restoring terms under ice for pkg/seaice
213    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
214    o bug fix for pkg/seaice pickups
215    o change MNC call locations and add coordinate attributes
216    o mask vorticity at the corner ; affects global_ocean.cs output
217    o fix ini_curvilinear_grid ; test CS experiments with mpi
218    o aim.5l_cs: modify sea-ice fraction input file ; update output
219    o exf: Adding simple range check routine for exf fields after read
220    
221    checkpoint52k_post
222    o removed top-level directory "diags"
223      - we migrated these functions to pkg/timeave a long time ago
224    o fixed bug introduced in pkg/monitor
225    o accuracy ctrlprec = 32 insuffient for gradient checks using
226      averaged fields (I/O via cost_averages)
227      -> use ctrl.h in active_file*.F to control I/O precision.
228    o paramter list of CALL ADTHE_MAIN_LOOP
229    o added initial do_the_model_io to ecco
230    o set all ...Freq to zero after cost_final
231      taveFreq, dumpFreq, pChkptFreq
232    o MAIN and ECCO differentiability restored
233    
234    checkpoint52j_post
235    o fix nchklev in tamc.h for global_ocean...
236    o Bringing flow and store directives up-to-date
237    o Really weird thing!
238      call do_the_model_io from the_main_loop with parameters
239      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
240      TAF places a faulty re-call of initialise_varia
241      after cost_final call which should not be there!
242    checkpoint52j_pre
243    
244    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
245      error messages
246    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
247    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
248      debug output
249    o modfied mdsio_writefield.F to handle non-global files under exch2
250    o update AIM Cubed-Sphere exp (aim.5l_cs):
251      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
252    o update AIM Equatorial Channel exp:
253      use standard aim_v23 pkg and change the SST fields to be more realistic.
254    o globalFile now works with exch2
255    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
256      mon_vort3.F to make exch2 friendly with >1 tile per cube face
257    o limit timeave output for hi-res integrations
258    
259    checkpoint52i_post
260    o removed CPP_EEOPTIONS.h from verification/*/code
261    o updated the tiling for global_ocean_pressure
262    checkpoint52i_pre
263    
264    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
265      the old pkg/aim).
266    
267    checkpoint52h_pre
268    o shortened offending lines in exch2_send_rx?.template
269    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
270    o genmake2: add build & execute test for NetCDF code
271    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
272      old grid files, moved CPP_EEMACROS.h to pkg/exch2
273    o added useSingleCPUIO flag to monitor.F and mon_out.F
274    o added temporary hack for sea-ice dynamics on the cube:
275      metric terms are ignored and it is assumed that
276      there is no sea-ice on cube faces 1, 2, 4, and 5.
277    
278    checkpoint52f_post
279    o added exch2 cube routines to pkg/exch2
280    o modified hs94.cs-32x32x5 to use it
281    o added new grid files to hs94.cs-32x32x5
282    checkpoint52f_pre
283    
284    checkpoint52e_post
285    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
286      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
287    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
288      to work with implicit vertical advection and AB ;
289    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
290    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
291     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
292    checkpoint52e_pre
293    
294    o fix bug in impldiff when Nr=1 or Nr=2.
295    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
296    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
297    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
298      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
299    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
300    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
301    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
302    
303    checkpoint52d_post
304    o re-tiled many expts to allow comparison in multi-processor mode
305      - updated output accordingly
306      - changed hs94.128x64x5 to use intial T from file rather than use the
307        random number generator
308    o add infrastructure in model routines for fizhi and gridalt packages
309    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
310    o changes to permit hi-res, cubed-sphere, configuration
311      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
312      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
313      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
314        of surface winds for the cube
315      (A verification experiment, based on global_ocean.cs32x15, but with
316       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
317       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
318       complete with example surface forcing files and matlab scripts to look
319       at the output and compare it with that of global_ocean.cs32x15.)
320    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
321       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
322       to conform to the common rule.
323    o check-in the first version of the coupler + interfaces for multi-components
324       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
325       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
326       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
327       - ocean and atmos. share the same horizontal grid (no interpolation).
328       - exchanges between component and coupler is done in forward_step
329    o new verification experiment, cpl_aim+ocn:
330       coupled ocean - AIM atmosphere on cs32 grid.
331    
332    checkpoint52d_pre
333    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
334    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
335    
336    checkpoint52c_post
337    o Fixing OPTIONS files for use of exf:
338      - ALLOW_ECCO not needed
339      - ECCO_CPPOPTIONS.h should not be included from
340        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
341        as has been the case in the past
342      - All cal/exf related options are currently set in
343        single header file. Should remain so until we
344        agree on a consistent new policy.
345    o Removed all CPP options for cal package.
346      cal has no more CPP options.
347    o modified STOREs in GAD_ADVECTION
348    o corrected key comp. for passkey
349    
350    checkpoint52b_post
351    o new version: "thsice" of thermodynamic sea-ice pkg:
352     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
353     - modify fluxes but do not change theta directly;
354     - light cleaning of bulk_force pkg (still needed with thsice).
355     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
356       + output_thsice.txt to test thsice & bulk_force pkgs.
357    o put back grid & coriolis monitor output.
358    checkpoint52b_pre
359    
360    o call "do_the_model_io" at the beginning (=> dump initial state)
361    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
362    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
363      (need info on NUMBER_OF_PTRACERS)
364    o missing PTRACERS headers in some routines
365    o default tamc.h in pkg/autodiff supposed to crash
366      to ensure proper customization
367    
368    checkpoint52a_post
369    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
370      - moved surfaceTendencyTice from pkg/seaice to main code
371      - subroutine FREEZE_SURFACE now limits only surface temperature
372        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
373        => new output.txt for global_ocean.cs32x15 & global_with_exf
374      - keep the old version of FREEZE for backward compatibility;
375        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
376      - corresponding modifs for TAF directives
377    o added surface flux output variables to TIMEAVE_STATVARS
378    o time-averaged output for pkg/ptracers
379    o fix problem with ECCO-related divided adjoint
380      snapshot file was missing some ad-variables,
381      but no warning issued by TAF
382    
383    checkpoint52a_pre
384    o some bug fixes for #undef REAL4_IS_SLOW
385    
386    checkpoint52 = ecco_c52_e35
387    o after testing adjoints of checkpoint51u_post
388    
389    checkpoint51u_post
390    o this is the post-merge tag of the ecco-branch
391      (needs another clean checkout and re-testing)
392    o various natl_box_adjoint configs and results
393      but no input fields
394    o obcs adjoint not yet merged!
395    o adding ECCO global 1x1 and 2x2 degree configs
396    o updated/extended some store directives for seaice
397    o pkg/ecco now containes ecco-specific part of cost function
398    o top level routines the_main_loop, forward_step
399      supersede those in model/src/
400      previous input data.cost now in data.ecco
401      (new namelist ecco_cost_nml)
402    o in ctrl/ cleaned some cross-dependencies and updated CPP options
403    
404    checkpoint51t_post
405    o this is the pre-merge tag of the ecco-branch
406    
407    checkpoint51s_post
408    o cleanup: removed various obsolete #define-s
409    o pkg/grdchk
410      - renamed 'ph-grd 3' to 'grad-res'
411      - merged from ecco-branch
412        (remaining bug fixes for obcs gradient checks)
413      - additional high-precision output for testreport
414        (grep for 'precision_grdchk_result')
415    
416    checkpoint51r_post
417    o cleaned up or removed CPP_OPTIONS.h files
418    o updated results for some of the tests to reflect the new
419      optfiles (-ieee: -O0 instead of -O3)
420    
421    checkpoint51q_post
422    o cd_code:
423      - moved cd_scheme.F -> cd_code_scheme.F
424      - separate read_checkpoint from cd_code_ini_vars.F
425      - separated cd_code part from write_checkpoint
426      - updated AD_SOURCE, generated .flow
427      - added CD_CODE_VARS.h to the_main_loop
428      - Moving cd_code specific store dir.s to pkg/cd_code
429    o ctrl package totally restructured
430      - pack/unpack now optional and decoupled from
431        xx_/adxx_ I/O
432      - ctrl_pack/unpack cleaned
433        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
434      - confined inclusion of AD_CONFIG.h to where necessary.
435    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
436    
437    checkpoint51p_post
438    o create initial cd_code package
439      - WARNING: the initialization of fields within packages
440        is broken because INI_FIELDS (where READ_CHECKPOINT is
441        called) is called *before* PACKAGES_INIT_VARIABLES.
442        This seems to be backwards since
443        1) its important to initially zero the entire field including
444           the "halo" region
445        2) zeroing needs to be done *before* reading pickup info
446           and the pickup call might or might not happen in any
447           particular run
448      - this needs an overhaul for R2
449    o cleanup verification/*/code/GMREDI_OPTIONS.h
450    o cleanup testreport
451    
452    checkpoint51o_post
453    o bringing AD-related verif's up to date with genmake2
454      - carbon/
455      - global_ocean.90x40x15/
456      - hs.94.1x64x5/
457      - (front_relax/ )
458    o (more) consistent directory structure for AD-related verif.'s
459    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
460    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
461    o bug fix in find_alpha.F for MDJWF:
462      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
463        change rho -> rho-rhoConst
464      - replace call find_rho to find_rhonum
465    o initialisation of rFlx extended to full array (required by TAF)
466      and shifted to thermodynamics
467    o removed PTRACERS.h in ptracers routine
468    o added surfacetendencyPtr to S/R parameter list pracers_forcing
469    o Correcting initialisations for fVerU, fVerV.
470    o helping TAF to recognize dependency on kUp for
471      fVerU, fVerV
472    o Replacing delZ by delR in pkg/ctrl/
473    checkpoint51o_pre
474    
475    o undid all of cp51 pending some cleanups and discussion
476    o added the [#include "AD_CONFIG.h"] statement to all files that need
477       it for adjoint/tl #defines
478     o re-worked the build logic in genmake2 to support AD_CONFIG.h
479     o removed tools/genmake since it no longer works
480    
481    checkpoint51n_post
482    o modifications to make FREEZE flux visible to pkg/kpp
483      - moved surfaceTendencyTice from pkg/seaice to main code
484      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
485      - subroutine FREEZE now limits only surface temperature
486        (this means new output.txt for global_ocean.90x40x15,
487         global_ocean.cs32x15, and global_with_exf)
488    o added surface flux output variables to TIMEAVE_STATVARS
489    
490    checkpoint51n_pre
491    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
492    o added [#include "AD_CONFIG.h"] to all files that use the following
493      defines:
494      - ALLOW_ADJOINT_RUN
495      - ALLOW_TANGENTLINEAR_RUN
496      - ALLOW_ECCO_OPTIMIZATION
497    
498    checkpoint51m_post
499    o incorporating changes to get TAMC/TAF working in genmake2
500      - added new TAMC/TAF targets to the Makefile
501      - various cleanups related to package handling
502      - these changes should have no impact on the forward model
503    
504    checkpoint51l_post
505    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
506     - faster algorithm for cal_addtime.F
507     - higher precision arithmetic, where needed
508     - pkg/exf *startdate variables changed from calendar date to
509       model integration time
510    
511    checkpoint51l_pre
512    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
513    o enable to apply restoring on S & T only in a latitude band.
514    o update output (external_forcing_surf modif. change truncation errors)
515       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
516    
517    checkpoint51k_post
518    o change default to: useNHMTerms=.FALSE.
519     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
520       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
521     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
522        exp1, ideal_2D_oce
523     - change data file of oceanic exp (leave the results unchanged for now)
524       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
525    o set gravitySign automatically according to the vertical coordinate used
526      (and change sign: back to "logical" value: +1 when R increases downward)
527    o added an include barrier to the default CPP_OPTIONS.h and
528      removed the #include "PACKAGES_CONFIG.h" from it
529    o fix a bug in mom_fluxform (from chk51j_post)
530    
531    checkpoint51j_post
532    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
533    o adjusted some flow directives (dynamics, thermodynamics)
534    o added cubed-sphere case to test cost function
535    o heckpoint_lev?_directives.h now include
536      pkg-specific directives, whenever those are enabled.
537    o Moving pkg-specific flow directives to corresponding pkg
538      Moving pkg-specific differentiation list to corresponding pkg
539      Moving pkg-specific checkpoint-lev storing to corresponding pkg
540      ---> conventions are
541           - pkg_ad.flow
542           - pkg_ad_diff.list
543           - pkg_ad_check_lev?_dir.h
544    
545    checkpoint51i_post
546    o merge of the branch-genmake2
547      - knowingly breaks the older genmake
548      - automatic generation of all ALLOW_${PKG_NAME} defines
549      - new testreport supersedes older testscript
550    o large number of package inclusion and header cleanups
551    checkpoint51i_pre
552    
553  o new output for adjoin of global ocean vector invariant  o new output for adjoin of global ocean vector invariant
554  o fix for checkpoint of thermodynamic seaice and bulk_force  o fix for checkpoint of thermodynamic seaice and bulk_force
555  o Steph gchem various cleanups  o Steph gchem various cleanups

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