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revision 1.178 by dimitri, Wed Sep 24 06:50:26 2003 UTC revision 1.488 by jmc, Thu May 19 16:26:36 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  untagged  checkpoint57h_done
8      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
9      data.diagnostics, data.gchem, data.ptracers) is done.
10    
11    o pkg/diagnostics: prepare for Global/Regional statistics.
12      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
13    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
14      and rename it: DIFFERENT_MULTIPLE
15    
16    checkpoint57h_post
17    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
18    o pkg/diagnostics: change output frequency, now in seconds (instead
19      of Nb of iterations). This requires to change data.diagnostics.
20    checkpoint57h_pre
21    
22    o in mnc, let the user create the output dir if both mnc_outdir_date
23      and mnc_outdir_num are false
24    o add fflags() to pkg/diagnostics which allows one to specify, on a
25      per-file basis, the file precision [default behavior is unchanged]
26    o added diagnostics to pkg/kpp, including computation of mixed layer
27      depth based on a temperature/density criterion
28    o updated verification/natl_box to test the new pkg/kpp diagnostics
29    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
30    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
31    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
32      not mnc -- this mistake was found by JMC and is now corrected
33    
34    checkpoint57g_post
35    o add Adams-Bashforth 3rd Order time stepping:
36      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
37      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
38    checkpoint57g_pre
39    
40    o make lambda[Theta,Salt]ClimRelax spatially varying
41      (default remains spatially uniform constant based on tau)
42    o added new control variables
43      * init. uVel, vVel, etanN
44      * lambda[Theta,Salt]ClimRelax
45    o separate masks used for ctrl_pack/unpack 'from write_grid' output
46      (suggested by G. Forget)
47    
48    checkpoint57f_post
49    o add parameter "baseTime" = model base time = time at iteration zero
50      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
51      account for baseTime shift
52    o move Coriolis arrays from PARAMS.h to GRID.h
53    checkpoint57f_pre
54    
55    o mnc-ifying the seaice package
56    o introduced an alternative length scale calculation for use in the limiting
57      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
58    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
59    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
60      as well as grad(vort3).  Made it compatible with both approximate form
61      for the cubed sphere and full form of these gradients.  Added flag
62      useFullLeith to select between approximate and full form.  
63    o add "d0" in getcon.F to reduce differences between compilers/platforms
64      update output.txt of exp. fizhi-gridalt-hs
65    o change port_rand funtion to allow to set the seed.
66    o fix obscure MNC bug involving conversion between reals and integers
67      - it caused no problems with certain (eg. gcc, ifc) compilers but the
68        new version is now more standards-compliant
69    o adjoint-related modifications
70      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
71      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
72      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
73    
74    checkpoint57e_post
75    o Adding eddy stress controls a la Ferreira et al.
76    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
77    
78    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
79      update output.txt of exp. fizhi-gridalt-hs
80    o add more "Z" dimensions and associated coordinate vars to MNC
81    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
82    o parameter calendarDumps: when set, approximate months (30-31 days) and years
83      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
84      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
85      months and years.  Requires pkg/cal.
86    o diagnostics: add pickup functionality
87      - off by default for backwards compatibility
88      - current version only uses MDSIO -- MNC will be added
89    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
90    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
91    
92    checkpoint57d_post
93    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
94    o modify verification/ideal_2D_oce so that it tests the creation of mnc
95      output from the diagnostics package
96    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
97    o make genmake2 more portable by using ".$FS" instead of ".f" for more
98      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
99    o add coordinate variables to the MNC output from the diagnostics package
100    o change MNC-flags default value: true when useMNC=TRUE
101    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
102      the ability (off by default) to read the grid information using MNC
103    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
104    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
105    o do snap-shot diagnostics at the middle of the time-interval (instead of
106      at the end).
107    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
108      new test for AIM with thSIce + slab-ocean
109    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
110    o move state variable diagnostics to the beginning of the time step ;
111      (note: still needs some work specially for snap-shot diagnostics)
112      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
113    
114    checkpoint57c_post
115    o Change testing option (-ieee) to get closer agreement between g77 & ifort
116    o generate new output.txt files on faulks with g77 & the new -ieee option
117    checkpoint57c_pre
118    
119    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
120      update output.txt of exp. global_ocean.90x40x15
121    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
122      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
123    o add saltFlux(+File) forcing capability with periodicExternalForcing
124    o allow to use pkg diagnostics for GM-Redi & ThSIce output
125    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
126    o improvements for the MNC output from DIAGNOSTICS:
127      - correct handling of the unlimitied dimension
128      - all dims now have associated coordinate variables
129      - variables located at U, V, and Corner ("Z") points are now written
130        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
131        *all* data points are output
132    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
133    o added pkg/seaice/seaice_monitor.F
134    o mdsio_readfield.F can now read files visible only to master MPI process.
135    o pkg/seaice: some test code for ice-modified ocean stress
136    o exf_getffields interpolation defaults to bilinear for all scalar forcing
137      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
138      spurious negative numbers for precipitation and humidity.  Will cause
139      some small numerical differences for integrations using pkg/exf/exf_interp.F.
140    o pkg/ctrl/
141      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
142        May be enabled via doPackDiag
143      *  introduce z-scaling of
144         + gradient (doZscalePack) and
145         + control (doZscaleUnpack)
146    o pkg/mdsio/
147      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
148      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
149    
150    checkpoint57b_post
151    o simplify options in diagnostics_fill arguments (remove weird combinations)
152    o fix MNC coordinate variables so that they now contain per-face index
153      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
154      general, EXCH2 grids are only aligned to a "local" coordinate system
155    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
156    o Implement instantaneous output within pkg diagnostics:
157      setting a negative frequency in data.diagnostics produces
158     "snap-shot" output (as opposed to time-average if freq > 0)
159    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
160      NOTE: change ptracer diagnostics name: use 2 characters to work with
161            more than 9 tracers. Add also diagnostics of advect & diffus flux.
162    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
163      becomes the coordinate variable for the 'T' dimension
164    o add CF-style coordinate variables to MNC
165      - just a first cut:  numbers are meaningless on the cubesphere and
166        missing along the T axis but otherwise it works!
167    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
168    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
169    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
170      this is based directly on what the model compute, so that the content of
171      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
172    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
173    o clean up build options files for SunOS, in particular
174      - remove -traditional from xmakedepend
175      - change -xarch=v9 to -xarch=native for f77
176      - restore use of make (not gmake)
177      - add CC=gcc if using g77
178    o changes per discussion of AM, JMC, & EH3 today:
179      - move redundant "grid" variables out of "state" -- in preparation of
180        creating proper CF-style coordinate variables and in recognition
181        that any/all grid variables can be easily copied (eg. w/NCO) from
182        the grid files into any of the other NetCDF files
183      - *always* output grid variables with MDSIO (this will eventually be
184        changed)
185      - output MNC grid file if useMNC is true
186    o every instance of _END_MASTER() has been found and replaced with
187      _END_MASTER( myThid ) in order to satisfy certain picky Sun
188      preprocessors
189    o re-arrange diagnostics pkg initialisation:
190     - allow each package to extend the available diagnostics list
191     - add some checking and fix small problems (multi-threaded, ...)
192     - new S/R diagnostics_fill (replace fill_diagnostics):
193       look through the short list of active diag. (instead of the long list)
194       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
195    
196    checkpoint57a_post
197    o this set of changes restores TAMC compatibility
198      tested for global_ocean.90x40x15 adjoint on trough
199      (what a pain)
200    
201    checkpoint57a_pre
202    o some modifs in tools/build_options for sunos
203    o call ctrl_pack for ctrl at end for optimcycle=0
204    
205    checkpoint57
206    o add horizontal bi-harmonic viscosity for vertical velocity
207      - new parameter viscA4W (defaults to viscA4)
208      - affects only non-hydrostatic code
209      - to be done: no-slip lateral boundary conditions
210    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
211    o implement Implicit Vertical advection for pTracers
212    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
213      (implemented also for implicit vertical diffusion & advection)
214    o OBCS: extend application of tracer open boundary conditions
215      to a strip beyond the boundary of width Olx/Oly
216    o add call monitor to TAF set of required calls (flow directives)
217      and include in natl_box_adjoint
218    o untangle a few ifdefs related to cost, ctrl, autodiff
219      untangel a few ALLOW_ECCO_OPTIMIZATION
220    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
221      (theta2, salt2 in ecco_cost_weights)
222    
223    checkpoint56c_post
224    o OBCS as control variables
225      - update ctrl_ad_diff.list, obcs_ad_diff.list
226      - remove balance of obcs controls from default
227      - fix index bug nobcs in ctrl_init
228      - fix dummy fields filen in ctrl_pack
229      - add dummy weights for obcs
230    o lsopt: comment out fort.94 output
231    o optim:
232      - remove unnecessary header files
233      - adjusted namelists
234      - add xerbla.F to Makefile
235    o exf:
236      - multiple modifications of exf_check_range
237      - unit change in exf_init_runoff from [m/year] to [m/s]
238    o mdsio:
239      - i/o-vector change debugLevel from debLevA to debLevB
240    
241    checkpoint56b_post
242    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
243      is called from DO_THE_MODEL_IO
244      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
245      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
246      - clean up PTRACERS_WRITE_TIMEAVE a little
247    o add another verification experiment that tests both the cfc-pkg and
248      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
249      reactive tendencies treated inline with regular timestepping
250    o testreport previously did a lousy job of comparing small numbers, so
251      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
252      implemented in the little c-progam tmp_cmpnum.c which is embedded in
253      testreport.
254    o ptracers_monitor: bug fix for MPI
255    
256    checkpoint56a_post
257    o GCHEM: finish reorganizating the package
258      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
259        (introduces another 3D-array for each passive tracer, but only if
260        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
261        gchemTendency is not needed because the timestep is done separately)
262      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
263      - GCHEM is now---more or less cleanly---separate from PTRACERS
264      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
265        so clear to me how that should be done in a general way.
266    o CFC: improve formatting of output in CFC_ATMOS
267    o PTRACERS:
268      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
269        that ALL experiments with ptracers enable can be checked. This makes
270        GCHEM_MONITOR obsolete.
271      - include a runtime parameter PTRACERS_monitorFreq that defaults to
272        monitorFreq
273      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
274    o add PTRACERS (PTR0[1-5]) to testreport output
275    o exf_check_range:
276      * default changed to .TRUE.
277      * will check values for niter0 if debLevA, every timestep if debLevB
278      * STOP in exf_check_range if 'out of range'
279      * range chosen generous to allow for potential extema
280      TBD: a version with stricter range
281           permitted range would be runtime parameters
282    o GMredi:
283      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
284      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
285      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
286    o GCHEM:
287      - move call to GCHEM_FORCING_SEP, so that it is now called before
288        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
289      - introduced a useGCHEM runtime flag and applied it everywhere.
290      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
291        this flag is now only visible within GCHEM-pkg routines.
292      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
293        be replaced by a 3D array that is computed before thermodynamics; for
294        this, the tracer ID iTracer had to be included into the parameter list
295        of ptracers_forcing
296      - set up forward_step to call gchem_forcing, that will replace
297        gchem_forcing_int in ptracers_forcing
298      - cleaning up
299    o small cleaning of exch2: remove files that are also in eesupp/src
300    
301    checkpoint56
302    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
303    o mnc: cleanup "full" files--fixes out-of-memory problem
304    o ECCO-GODAE
305      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
306      * fully merged and updated from SIO code
307        windstress sign change affects
308        - exf_inscal_[u/v]stress
309        - sign of xx_tau[u/v] adjustments
310        - signs in cost_scat
311      * ctrl_get_gen: avoid update of tau[u/v] for first few days
312      * natl_box_adjoint updated and compressed
313      * 2-level checkpoint switch added
314        (tested in EXP. 1 of natl_box_adjoint)
315      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
316    o SVD
317      * first complete, non-hacked version for SVD calculations
318      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
319        performed via direct access files admtlm_vector.it????
320        (via ctrl_[un]pack)
321      * optimcycle is used for ARPACK iteration counter
322        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
323      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
324        and add linear transforms where necessary
325      * controls are initial/final SST, SSS (can be extended; need to check
326        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
327    o mdsio: filename info to both stderr, stdout
328    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
329      from sign change
330    
331    checkpoint55j_post
332    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
333      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
334    o add consistent build directories and .cvsignore files to verification
335    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
336    o make all subroutines 30 or less characters in length for certain older
337      compilers to work (a thorough search only turns up two routines in
338      pkg/ptracers)
339    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
340      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
341    
342    checkpoint55i_post
343    o change arrays for total vertical diffusivity (2.D if explicit,
344      3.D if implicit) ; each ptracer uses its own background value.
345    o added mnc/NetCDF output capability to ocn_compon_interf
346      - added bits to verification/cpl_aim+ocn so that it can run on
347        ITRDA and other clusters without the mpirun "-wd" option
348    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
349      configuration
350    o give MNC the ability to create additional files rather than
351      exceeding a specified file size limit "MNC_MAX_FILESIZE"
352      - the default is just less than 2GB which is a practical limit
353        on many systems
354    o Compute the non-local term using either KPP vertical diffusivity (=default)
355       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
356    
357    checkpoint55h_post
358    o add verification test "vermix"
359    o remove all the *_ioinc flags and replace with the single global
360      outputTypesInclusive flag
361    o allow to set a vertical profile of vertical diffusivity for T & S
362    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
363    o useMNC moved from data.mnc to data.pkg
364    
365    checkpoint55g_post
366    o Renaming carbon AD experiments to comply with testreport conventions
367    o Updating adjoint of Held-Suarez hs94.1x64x5
368    o Fixing directives for non-ECCO forward_step, after ECCO directives
369      have been fixed to avoid recomp. of do_oceanic_phys
370      Works well for global_ocean.90x40x15,
371      but recomp. issue remains for carbon
372    o Updating adjoint output for natl_box_adjoint after
373      pkg/ecco has been modified (see taga c55d_post)
374    
375    checkpoint55f_post
376    o rename to timeave_init_fixed
377    
378    checkpoint55e_post
379    o some delicate re-shuffle of store directives to avoid one
380      extra call of do_oceanic_physics
381      affects ecco_the_main_loop.F, do_oceanic_physics.F
382      checkpoint_lev1_directives.h
383    o NB: this may break global_ocean adjoint temporarily,
384      but it is clear how to fix it. Will do later, need this now.
385    
386    checkpoint55d_post
387    o ECCO specific cost function terms (up-to-date with 1x1 runs)
388    o ecco_cost_weights is modified to 1x1 runs
389    o modifs to allow observations to be read in as
390      single file or yearly files
391    o enable to read exf forcing fields as either
392      single file or yearly files (flag useExfYearlyFields)
393    checkpoint55d_pre
394    
395    o switch between 2-level and 3-level checkpointing
396    o add ability of MNC to write local and "partial" (eg. 2D slices where
397      the full 3D field is never actually stored) arrays to NetCDF files
398      with the correct (that is, the complete multi-dimensional) set of
399      array indicies
400      - used in mom_vecinv() to write the diagFreq output
401      - tested (demonstrated) in verification/aim.5l_cs
402    o further mnc-ification
403      - add verification/lab_sea to the list with mnc setups
404      - fix undefined mnc v-names in cd_code
405      - add kpp to mnc output (both snapshot and timeave)
406    o non-hydrostatic code
407      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
408        in calc_gw.F
409      - defaults to viscAh
410      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
411        friction or Leith) in non-hydrostatic mode, as long as there is
412        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
413    o pkg/cost
414      extend simple cost functions to treat time mean quantities
415      (T,U,V) via cost_accumulate_state from cost_tile
416    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
417        be 2 times larger than the minimum size the advection scheme requires.
418        now get a perfect conservation of salt in advect_cs test-exp (updated)
419    o GGL90 (Gaspar's TKE mixed layer)
420      - add horizontal diffusion of TKE, requires exchanges in
421        do_fields_blocking_exchanges, horizontal diffusivity is zero by
422        default. In OPA there is no horizontal diffusion of TKE but the
423        mixing coefficients are computed from a horizontal average of TKE of
424        6 points or so. I think that diffusion has a little more physical
425        justification.
426      - clean up ggl90_calc in the hope of reducing memory usage (this hope
427        was in vain)
428      - mask tke-variable in ggl90_init
429    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
430    o fix biharmonic diffusion on CS-grid.
431    o more obcs stuff
432      - added obcs_external_fields_load as an alternative to the EXF-pkg option
433        for reading boundary values. This routine is called from
434        obcs_prescribe_read
435      - updated obcs_check
436      - changed sponge layer relaxation parameter units for days to seconds
437      - turned off sponge layer by default
438      - changed argument list of OBCS_CALC to myTime+deltaTclock
439      - fixed about 35 bugs in obcs_external_fields_load
440    
441    checkpoint55c_post
442    o obcs stuff
443      - new runtime flags useOBCSprescribe, useOBCSbalance
444      - re-arranged obcs_calc
445      - moved exf_getobcs to obcs_prescibe_read
446        obcs_prescibe_read is called after ORLANSKI stuff
447        and independent of it (executable can contain all).
448      - updated obcs_check
449      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
450        These may be necessary only if tangential velocities are
451        prescribed at OB, not sure, needs testing.
452    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
453      which simplifies the calls and passes the ifc check-bounds test
454    
455    checkpoint55b_post
456    o add a 2D scalar, Z location, exchange_2 routine.
457    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
458      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
459      affects advect_cs results (for the wrong reason): update output.txt
460    o use a more standard discretization for biharmonic viscosity ;
461     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
462      affects results of dome set-up: update output.txt
463    o fix gad_advection.F (CubedSphere part), back to version 1.23
464    o fix bug in mom_vi_del2uv.F (CubedSphere part).
465    
466    checkpoint55a_post
467    o merged code to
468      * prescribe/read time-dependent open boundaries
469        (works in conjunction with exf, cal)
470      * sponge layer code for open boundaries
471      * each boundary N/S/E/W now has its own CPP option
472        (healthy for the adjoint)
473    
474    checkpoint55
475    o up-to-date adjoint of previous breaks
476      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
477      - global_ocean_ebm: adjoint still needs fix (TLM ok)
478      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
479      - carbon: * remove tr1-related adjoint verification
480                * add ptracer as control variable
481    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
482      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
483    
484    checkpoint54f_post
485    o in verification/carbin/ remove experiment related to
486      ALLOW_PASSIVE_TRACER (array tr1 etc)
487      code_ad/ input_ad/ results_ad
488    
489    o add two new packages
490      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
491        + subject to optimization (memory)
492      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
493        + subject to reordering (many GOTOs in the original code)
494        + so far opps is called for every (i,j) point, and then operates in
495          the vertical; one may want to reorder the scheme in order operate in
496          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
497          fields)
498    o overhaul of IO so that we now have flags for MDSIO and/or MNC
499      - all verification tests compile and run with linux_ia32_g77
500      - defaults are compatible with current input files--nothing
501        should change if you were not previously using MNC
502      - MNC output has been added in numerous places (eg. timeave)
503        but there are still a few writes not yet do-able with MNC
504        (this is in progress)
505      - flags now allow for either/or/both use of MDSIO and MNC and
506        documentation will soon follow
507      - numerous small formatting cleanups for ProTeX
508    o add version info (via BUILD_INFO.h) to MNC and stdout
509    
510    checkpoint54e_post
511    o add two new packages
512      - pp81 (Packanowski and Philander, 1981), Richardson number and
513        stratification dependent mixing
514      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
515      - these scheme operate in a similar manner as KPP (without ghat, of
516        course), however there is only one diffusivity that is used for both
517        temperature and salinity (and passive tracers)ç
518    o add offline package
519    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
520      provided by Stephanie Dutkiewicz
521    o genmake2: add ability to search for C compilers and cleanup test output
522      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
523    
524    checkpoint54d_post
525    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
526    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
527      leading to additional shift by 5 days each year of integration
528       (i.e. leading to considerable offset over the years)
529    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
530    o start with no AB and no initial filtering (staggerTimeStep):
531      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
532    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
533      (external loading & cpl import/export stay in forward_step.F)
534    o update coupling interface to work with new staggerTimeStep
535    o change MDSIO ptracers_pickup.
536    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
537    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
538    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
539    
540    checkpoint54c_post
541    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
542      this affects (truncation error) output.txt of test-exp:
543       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
544    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
545    o change Qnet to always be the net heat flux, (+upward).
546      affects (truncation error) output of natl_box exp.: updated
547    o define the max number of passive tracers in PTRACERS_SIZE.h
548    o start to test mnc routinely in exp0
549    o add sea-ice loading (sIceLoad) as a new forcing field.
550    
551    checkpoint54b_post
552    o add testreport "-j JOBS" option for parallel builds (tested and pretty
553       impressive on Altix and Opteron systems)
554    o diagnostics can now write NetCDF files through the mnc package
555    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
556    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
557    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
558      affects (truncation error) output of lab_sea & natl_box exp.: updated
559    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
560    
561    checkpoint54a_post
562    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
563    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
564    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
565    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
566      + internal_wave (shift in writing cg2d_ini_res)
567    checkpoint54a_pre
568    
569    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
570      - modified verification/lab_sea and natl_box_adjoint accordingly
571    
572    checkpoint54
573    checkpoint53g_post
574    o prepare splitting of thermodynamics: store convect.counter in common block
575    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
576      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
577    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
578    o new parameter "nShapS": allow to treat differently S from T (nShapT)
579    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
580    o restore adjointability
581    
582    checkpoint53f_post
583    o modifications that affect AIM experiment results (update output.txt):
584      - no advection of S at top interface Nr (pkg/generic_advdiff)
585      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
586    o AIM pkg:
587      - include stability function into surf.Flux derivative relative to Tsurf
588      - calculate clear-sky radiation & surface temp. change (for diagnostics)
589    
590    checkpoint53e_post
591    o merged cylindrical coord configuration
592    o added rotating_tank experiment
593    checkpoint53e_pre
594    
595    checkpoint53d_post
596    o faulks upgraded: re-generate output.txt that have changed:
597       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
598    o Added Bryan and Lewis, 1979, vertical diffusivity profile
599    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
600    o added Sadourny discretization of Coriolis
601      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
602      - re-enabled use of omega3 (useAbsVorticity)
603    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
604      vector-invariant equations
605      - note: does *NOT* yet use same variable visc. for no-slip BC's.
606    o recoded the lateral boundary conditions for non-hydrostatic w, this time
607      hopefully without new bugs
608      - still to do: biharmonic friction for non-hydrostatic w
609    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
610    o regenerated output for global_ocean_ebm (using -ieee)
611    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
612      of mom_common/
613      - simple re-arrangement of instructions within computing loop
614    checkpoint53d_pre
615    
616    checkpoint53c_post
617    o new version of coupler for AIM+thSIce and Ocean models
618     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
619     - land: change Evaporation of snow
620     - aim with thSIce: fix bug in snow-precip.
621    o changes to calc_gw.F
622     - bug fix for w^2 term near the bottom boundary
623     - (hopefully) improve the lateral slip boundary condtions for use with
624        partial/looped cells
625      - because the bug fix changes two verification experiments anyway (exp5
626        and plume on slope), change the lateral boundary condition from half slip
627        to the value of no_slip_sides
628    o ebm package wasnt quite up to the parallel task. Fixed that.
629    o Adjoint of EBM package + verification
630      * TLM OK
631      * ADM not sufficient accuracy yet (needs further testing)
632    
633    checkpoint53b_post
634    o Commiting new energy balance model to repository
635      * package is pkg/ebm
636      * verif. is verification/global_ocean_ebm
637      * references are in ebm_driver.F
638    C      * X. Wang, P. Stone and J. Marotzke, 1999:
639    C        Global thermohaline circulation. Part I:
640    C        Sensitivity to atmospheric moisture transport.
641    C        J. Climate 12(1), 71-82
642    C      * X. Wang, P. Stone and J. Marotzke, 1999:
643    C        Global thermohaline circulation. Part II:
644    C        Sensitivity with interactive transport.
645    C        J. Climate 12(1), 83-91
646    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
647    C        Destabilization of the thermohaline circulation
648    C        by atmospheric eddy transports.
649    C        J. Climate 7(12), 1870-1882
650    o Will need long integration testing.
651    checkpoint53b_pre
652    
653    o created pkg/mom_common in preparation for variable viscosity code
654    o renamed and split ini_mnc_io
655    o pkg/land: only liquid water can diffuse or run-off
656    o AIM using land: soil wetness availability account for snow
657    o added printMapIncludesZeros to EEPARMS namelist
658    
659    checkpoint53a_post
660    o restore TAMC compatiility for exf_constants.h
661      (no usage of _d in .h)
662    o Additional storing in KPP in an attempt to fix
663      TAMC problem with adjoint of KPP code.
664      (no success...)
665      Identical code works fine with TAF.
666    o Fixed verification/natl_box_adjoint experiments.
667      Initial conditions for Experiments 4 and 5 are now
668      set to "SEAICE_initialHEFF=0", which is more reasonable,
669      and hence gives results closer to that of Experiment 2.
670      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
671    
672    checkpoint53
673    o stable checkpoint with up to date adjoint
674      TLM tests only run for 1st grdchk at the moment. Its unclear if
675      this is a code problem or a problem with resetting code for g_
676      variables that is being autogenerated wrong.
677      Otherwise:
678       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
679       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
680         are both still in chaos following their security messes.
681    
682    checkpoint52n_post
683    o various build (mostly genmake2) changes including:
684      - ability to build/run more easily within Cygwin and MacOS X
685      - more complicated Makefiles with a stronger dependence on Gnu Make
686    o pkg/seaice modifications
687      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
688        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
689        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
690      - changed proxy for geostrophic velocity and updated
691        verification/lab_sea/results/* accordingly
692      - removed ADI dynamic solver from pkg/seaice
693      - replaced all occurrences of 1/CSTICE or 1/CSUICE
694        they caused a segmentation fault under certain circumstances
695      - removed unused field WATR
696    o bug fix in exf-package:
697      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
698         now reflect that.
699    o small fixes in the cal-package:
700      - set reference date to first of January for the 'model'-calendar
701      - failing of cal_CheckDate in cal_FullDate now actually results in a
702        warning
703    o small modifications in exf-package to increase flexibility:
704      - change climtempfreeze from a constant to a runtime parameter that
705        is specified in data.exf_clim (default = -1.9)
706      - introduce runtime parameter windstressmax (default = 2.0) that is
707        specified in data.exf
708    o fix in pkg/thsice:
709      - update Evap (Tsf changes) to be consistent with Latent heat flux
710      - maintain snow precipitation unchanged (even if Tsf >=0).
711     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
712    
713    checkpoint52m_post
714    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
715      this does not change any of the results, because myIter=0 in swfrac always
716      lead to jwtype=2 (the default anyway), but the call makes little sense
717      as a default
718    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
719    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
720      atmospheric model (AIM) to use it ; add a "slab ocean" component.
721    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
722    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
723    o extending useSingleCpuIO option to work with new exch2 I/O format
724      - old-style, missing-tile I/O is still accessible by defining CPP
725        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
726    o monitor package can write to NetCDF files and/or STDOUT
727    o fix re-definition bug in MNC_GRID_INIT_ALL()
728    o doc/api_reference added
729      - a framework for building an API Reference Manual using all
730        the "protex" comments embedded in the code
731      - see pkg/generic_advdiff, pkg/mnc for examples
732    o MNC:
733      - make myThid the last argument for all subroutines
734      - new default for the grid files: NO halos
735      - add useMNC and other run-time flags
736      - separate per-file-group handling of the unlimited dimension
737      - early initialization of MNC w/ flags read at the eeboot stage
738        and lookup tables set in initialize_fixed
739      - write all MNC output to a freshly-created directory
740    o thermodynamics sea-ice (thsice) is now tested with testreport.
741    o test exp. advect_cs: use the standard cs32 grid ; update output.
742    o Added functionality to grdchk:
743      pick global i,j,k position (or nearest wet) where to perform check.
744    
745    checkpoint52l_post
746    o new land formulation:
747      a) use ground enthalpy as prognostic variable to ensure exact
748         energy conservation.
749      b) account for water temperature and for latent heat of freezing
750         in all processes (rain, run-off, ground storage)
751      c) compute surface and ground temperature implicitly.
752    o aim_v23 modification for new land model:
753      a) Treat separately land / ocean / sea-ice surface fluxes
754         to allow implicit computation of land & sea-ice surface temp.
755      b) add snow precipitation.
756    checkpoint52l_pre
757    
758    o fix problem (when 1 tile is empty) in min/max monitor.
759    o fix bug in timeAve (u,vZetatave in common block)
760    o no restoring terms under ice for pkg/seaice
761    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
762    o bug fix for pkg/seaice pickups
763    o change MNC call locations and add coordinate attributes
764    o mask vorticity at the corner ; affects global_ocean.cs output
765    o fix ini_curvilinear_grid ; test CS experiments with mpi
766    o aim.5l_cs: modify sea-ice fraction input file ; update output
767    o exf: Adding simple range check routine for exf fields after read
768    
769    checkpoint52k_post
770    o removed top-level directory "diags"
771      - we migrated these functions to pkg/timeave a long time ago
772    o fixed bug introduced in pkg/monitor
773    o accuracy ctrlprec = 32 insuffient for gradient checks using
774      averaged fields (I/O via cost_averages)
775      -> use ctrl.h in active_file*.F to control I/O precision.
776    o paramter list of CALL ADTHE_MAIN_LOOP
777    o added initial do_the_model_io to ecco
778    o set all ...Freq to zero after cost_final
779      taveFreq, dumpFreq, pChkptFreq
780    o MAIN and ECCO differentiability restored
781    
782    checkpoint52j_post
783    o fix nchklev in tamc.h for global_ocean...
784    o Bringing flow and store directives up-to-date
785    o Really weird thing!
786      call do_the_model_io from the_main_loop with parameters
787      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
788      TAF places a faulty re-call of initialise_varia
789      after cost_final call which should not be there!
790    checkpoint52j_pre
791    
792    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
793      error messages
794    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
795    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
796      debug output
797    o modfied mdsio_writefield.F to handle non-global files under exch2
798    o update AIM Cubed-Sphere exp (aim.5l_cs):
799      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
800    o update AIM Equatorial Channel exp:
801      use standard aim_v23 pkg and change the SST fields to be more realistic.
802    o globalFile now works with exch2
803    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
804      mon_vort3.F to make exch2 friendly with >1 tile per cube face
805    o limit timeave output for hi-res integrations
806    
807    checkpoint52i_post
808    o removed CPP_EEOPTIONS.h from verification/*/code
809    o updated the tiling for global_ocean_pressure
810    checkpoint52i_pre
811    
812    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
813      the old pkg/aim).
814    
815    checkpoint52h_pre
816    o shortened offending lines in exch2_send_rx?.template
817    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
818    o genmake2: add build & execute test for NetCDF code
819    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
820      old grid files, moved CPP_EEMACROS.h to pkg/exch2
821    o added useSingleCPUIO flag to monitor.F and mon_out.F
822    o added temporary hack for sea-ice dynamics on the cube:
823      metric terms are ignored and it is assumed that
824      there is no sea-ice on cube faces 1, 2, 4, and 5.
825    
826    checkpoint52f_post
827    o added exch2 cube routines to pkg/exch2
828    o modified hs94.cs-32x32x5 to use it
829    o added new grid files to hs94.cs-32x32x5
830    checkpoint52f_pre
831    
832    checkpoint52e_post
833    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
834      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
835    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
836      to work with implicit vertical advection and AB ;
837    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
838    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
839     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
840    checkpoint52e_pre
841    
842    o fix bug in impldiff when Nr=1 or Nr=2.
843    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
844    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
845    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
846      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
847    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
848    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
849    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
850    
851    checkpoint52d_post
852    o re-tiled many expts to allow comparison in multi-processor mode
853      - updated output accordingly
854      - changed hs94.128x64x5 to use intial T from file rather than use the
855        random number generator
856    o add infrastructure in model routines for fizhi and gridalt packages
857    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
858    o changes to permit hi-res, cubed-sphere, configuration
859      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
860      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
861      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
862        of surface winds for the cube
863      (A verification experiment, based on global_ocean.cs32x15, but with
864       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
865       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
866       complete with example surface forcing files and matlab scripts to look
867       at the output and compare it with that of global_ocean.cs32x15.)
868    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
869       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
870       to conform to the common rule.
871    o check-in the first version of the coupler + interfaces for multi-components
872       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
873       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
874       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
875       - ocean and atmos. share the same horizontal grid (no interpolation).
876       - exchanges between component and coupler is done in forward_step
877    o new verification experiment, cpl_aim+ocn:
878       coupled ocean - AIM atmosphere on cs32 grid.
879    
880    checkpoint52d_pre
881    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
882    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
883    
884    checkpoint52c_post
885    o Fixing OPTIONS files for use of exf:
886      - ALLOW_ECCO not needed
887      - ECCO_CPPOPTIONS.h should not be included from
888        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
889        as has been the case in the past
890      - All cal/exf related options are currently set in
891        single header file. Should remain so until we
892        agree on a consistent new policy.
893    o Removed all CPP options for cal package.
894      cal has no more CPP options.
895    o modified STOREs in GAD_ADVECTION
896    o corrected key comp. for passkey
897    
898    checkpoint52b_post
899    o new version: "thsice" of thermodynamic sea-ice pkg:
900     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
901     - modify fluxes but do not change theta directly;
902     - light cleaning of bulk_force pkg (still needed with thsice).
903     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
904       + output_thsice.txt to test thsice & bulk_force pkgs.
905    o put back grid & coriolis monitor output.
906    checkpoint52b_pre
907    
908    o call "do_the_model_io" at the beginning (=> dump initial state)
909    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
910    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
911      (need info on NUMBER_OF_PTRACERS)
912    o missing PTRACERS headers in some routines
913    o default tamc.h in pkg/autodiff supposed to crash
914      to ensure proper customization
915    
916    checkpoint52a_post
917    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
918      - moved surfaceTendencyTice from pkg/seaice to main code
919      - subroutine FREEZE_SURFACE now limits only surface temperature
920        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
921        => new output.txt for global_ocean.cs32x15 & global_with_exf
922      - keep the old version of FREEZE for backward compatibility;
923        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
924      - corresponding modifs for TAF directives
925    o added surface flux output variables to TIMEAVE_STATVARS
926    o time-averaged output for pkg/ptracers
927    o fix problem with ECCO-related divided adjoint
928      snapshot file was missing some ad-variables,
929      but no warning issued by TAF
930    
931    checkpoint52a_pre
932    o some bug fixes for #undef REAL4_IS_SLOW
933    
934    checkpoint52 = ecco_c52_e35
935    o after testing adjoints of checkpoint51u_post
936    
937    checkpoint51u_post
938    o this is the post-merge tag of the ecco-branch
939      (needs another clean checkout and re-testing)
940    o various natl_box_adjoint configs and results
941      but no input fields
942    o obcs adjoint not yet merged!
943    o adding ECCO global 1x1 and 2x2 degree configs
944    o updated/extended some store directives for seaice
945    o pkg/ecco now containes ecco-specific part of cost function
946    o top level routines the_main_loop, forward_step
947      supersede those in model/src/
948      previous input data.cost now in data.ecco
949      (new namelist ecco_cost_nml)
950    o in ctrl/ cleaned some cross-dependencies and updated CPP options
951    
952    checkpoint51t_post
953    o this is the pre-merge tag of the ecco-branch
954    
955    checkpoint51s_post
956    o cleanup: removed various obsolete #define-s
957    o pkg/grdchk
958      - renamed 'ph-grd 3' to 'grad-res'
959      - merged from ecco-branch
960        (remaining bug fixes for obcs gradient checks)
961      - additional high-precision output for testreport
962        (grep for 'precision_grdchk_result')
963    
964    checkpoint51r_post
965    o cleaned up or removed CPP_OPTIONS.h files
966    o updated results for some of the tests to reflect the new
967      optfiles (-ieee: -O0 instead of -O3)
968    
969    checkpoint51q_post
970    o cd_code:
971      - moved cd_scheme.F -> cd_code_scheme.F
972      - separate read_checkpoint from cd_code_ini_vars.F
973      - separated cd_code part from write_checkpoint
974      - updated AD_SOURCE, generated .flow
975      - added CD_CODE_VARS.h to the_main_loop
976      - Moving cd_code specific store dir.s to pkg/cd_code
977    o ctrl package totally restructured
978      - pack/unpack now optional and decoupled from
979        xx_/adxx_ I/O
980      - ctrl_pack/unpack cleaned
981        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
982      - confined inclusion of AD_CONFIG.h to where necessary.
983    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
984    
985    checkpoint51p_post
986    o create initial cd_code package
987      - WARNING: the initialization of fields within packages
988        is broken because INI_FIELDS (where READ_CHECKPOINT is
989        called) is called *before* PACKAGES_INIT_VARIABLES.
990        This seems to be backwards since
991        1) its important to initially zero the entire field including
992           the "halo" region
993        2) zeroing needs to be done *before* reading pickup info
994           and the pickup call might or might not happen in any
995           particular run
996      - this needs an overhaul for R2
997    o cleanup verification/*/code/GMREDI_OPTIONS.h
998    o cleanup testreport
999    
1000    checkpoint51o_post
1001    o bringing AD-related verif's up to date with genmake2
1002      - carbon/
1003      - global_ocean.90x40x15/
1004      - hs.94.1x64x5/
1005      - (front_relax/ )
1006    o (more) consistent directory structure for AD-related verif.'s
1007    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1008    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1009    o bug fix in find_alpha.F for MDJWF:
1010      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1011        change rho -> rho-rhoConst
1012      - replace call find_rho to find_rhonum
1013    o initialisation of rFlx extended to full array (required by TAF)
1014      and shifted to thermodynamics
1015    o removed PTRACERS.h in ptracers routine
1016    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1017    o Correcting initialisations for fVerU, fVerV.
1018    o helping TAF to recognize dependency on kUp for
1019      fVerU, fVerV
1020    o Replacing delZ by delR in pkg/ctrl/
1021    checkpoint51o_pre
1022    
1023    o undid all of cp51 pending some cleanups and discussion
1024    o added the [#include "AD_CONFIG.h"] statement to all files that need
1025       it for adjoint/tl #defines
1026     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1027     o removed tools/genmake since it no longer works
1028    
1029    checkpoint51n_post
1030    o modifications to make FREEZE flux visible to pkg/kpp
1031      - moved surfaceTendencyTice from pkg/seaice to main code
1032      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1033      - subroutine FREEZE now limits only surface temperature
1034        (this means new output.txt for global_ocean.90x40x15,
1035         global_ocean.cs32x15, and global_with_exf)
1036    o added surface flux output variables to TIMEAVE_STATVARS
1037    
1038    checkpoint51n_pre
1039    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1040    o added [#include "AD_CONFIG.h"] to all files that use the following
1041      defines:
1042      - ALLOW_ADJOINT_RUN
1043      - ALLOW_TANGENTLINEAR_RUN
1044      - ALLOW_ECCO_OPTIMIZATION
1045    
1046    checkpoint51m_post
1047    o incorporating changes to get TAMC/TAF working in genmake2
1048      - added new TAMC/TAF targets to the Makefile
1049      - various cleanups related to package handling
1050      - these changes should have no impact on the forward model
1051    
1052    checkpoint51l_post
1053    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1054     - faster algorithm for cal_addtime.F
1055     - higher precision arithmetic, where needed
1056     - pkg/exf *startdate variables changed from calendar date to
1057       model integration time
1058    
1059    checkpoint51l_pre
1060    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1061    o enable to apply restoring on S & T only in a latitude band.
1062    o update output (external_forcing_surf modif. change truncation errors)
1063       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1064    
1065    checkpoint51k_post
1066    o change default to: useNHMTerms=.FALSE.
1067     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1068       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1069     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1070        exp1, ideal_2D_oce
1071     - change data file of oceanic exp (leave the results unchanged for now)
1072       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1073    o set gravitySign automatically according to the vertical coordinate used
1074      (and change sign: back to "logical" value: +1 when R increases downward)
1075    o added an include barrier to the default CPP_OPTIONS.h and
1076      removed the #include "PACKAGES_CONFIG.h" from it
1077    o fix a bug in mom_fluxform (from chk51j_post)
1078    
1079    checkpoint51j_post
1080    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1081    o adjusted some flow directives (dynamics, thermodynamics)
1082    o added cubed-sphere case to test cost function
1083    o heckpoint_lev?_directives.h now include
1084      pkg-specific directives, whenever those are enabled.
1085    o Moving pkg-specific flow directives to corresponding pkg
1086      Moving pkg-specific differentiation list to corresponding pkg
1087      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1088      ---> conventions are
1089           - pkg_ad.flow
1090           - pkg_ad_diff.list
1091           - pkg_ad_check_lev?_dir.h
1092    
1093    checkpoint51i_post
1094    o merge of the branch-genmake2
1095      - knowingly breaks the older genmake
1096      - automatic generation of all ALLOW_${PKG_NAME} defines
1097      - new testreport supersedes older testscript
1098    o large number of package inclusion and header cleanups
1099    checkpoint51i_pre
1100    
1101    o new output for adjoin of global ocean vector invariant
1102    o fix for checkpoint of thermodynamic seaice and bulk_force
1103    o Steph gchem various cleanups
1104    
1105    checkpoint 51h_pre
1106    o fixed some single quotes
1107    o modify gchem pkg to be more versatile
1108    o modifications to clean up dic pkg
1109    o add pkg/cfc
1110    
1111    checkpoint51g_post
1112    o provide links for ARPACK and ADM*TLM
1113    o start removing verification/vero/
1114    o update AD-related stuff
1115      (in particular some IF-statements in model/src/ routines)
1116    o adding to verification/global_ocean.90x40x15/ adjoint of
1117      vector invariant setup
1118    
1119    checkpoint51f_post
1120    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1121  o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation  o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1122    of tracer Green's fucntions for ocean inversion project.    of tracer Green's fucntions for ocean inversion project.
1123    

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