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revision 1.123 by jmc, Fri Jan 24 17:55:25 2003 UTC revision 1.530 by heimbach, Wed Aug 10 03:41:44 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    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
8      Needed for high-res. runs with large global files
9      to be able to limit tapelev size
10    o Changed some tests for adjoint:
11      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
12      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
13      * global_ocean.90x40x15/ back to default 3-level checkpointing
14    
15    checkpoint57p_post
16    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
17    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
18      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
19    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
20    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
21      (was already the case for dissipation with mom_vecinv,
22       and also the case for grad.PhiHyd when staggered-timeStep)
23      This will allow to put dissipation out-off the AB time-stepping.
24     Unfortunately, affects truncation error. Update output of exp. that "fails"
25      (cg2d matching number) and leave the others for later: front_relax(10),
26      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
27      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
28    
29    checkpoint57o_post
30    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
31      (2) its ready to be documented during the 20050801 DocFest
32    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
33      for ideal_2D_oce and lab_sea on linux_ia32_g77
34    o set to #undef CTRL_SET_OLD_MAXCVARS_30
35      in global1x1_tot/code_seaice_adj to access indices 32, 33
36      (worth another tag)
37    
38    checkpoint57n_post
39    o adding precip control xx_precip 32
40    o adding swflux control xx_swflux 33
41    o Replacing 10 forcing penalty cost routines by 1 generic.
42    o Implementing partitioning in time-mean and variable adjustment
43      for atmos. state.
44    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
45    o in natl_box_adjoint:
46      * updated exp 1 to 10
47        (but does not have time-mean vs. variable split results yet)
48    o updated global1x1/*_seaice_adj/
49      to incorporate latest changes
50    o enable useSingleCpuIO for mdsio vector routines
51      (applies in particular to tapelev I/O)
52    o removed inefficient K-loop in all active_file*control*.F
53    
54    checkpoint57m_post
55    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
56      and advect_cs (use EXCH-2 and standard cs-32 grid files).
57    o pkg/exch2: filling of face-corner halo regions is optional
58      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
59    
60    checkpoint57l_post
61     tag before updating tutorials (pre-release-2)
62    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
63       for output and interpolation of input fields onto model grid)
64    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
65       Affects results of exp. rotating_tank ; update output.txt.
66    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
67          and taking the square quantity and/or using a fraction-weight field.
68    o fix aim_diagnostics_init.F mate numbers.
69    o add mnc output capability to diagnostics/diagstat and update
70      our cvsignore files for the ACSII output generated
71    
72    checkpoint57k_post
73    o lab_sea now uses diagnostics package and provides a suite of
74      new EXF diagnostics output.
75    
76    checkpoint57j_post
77    o exf
78      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
79        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
80        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
81      * extended diagnostics output
82        - now includes all EXF variables
83        - hs, hl moved to common block
84        - separate S/R for diagnostics, called after ctrl vector is added
85        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
86        - EXFqnet contains true Qnet (i.e. includes qsw)
87      * updated verif. lab_sea, global_with_exf
88      * Rearranging hflux (exf_mapfields -> exf_getforcing)
89        to ensure that diagnostics sees a true EXFqnet
90    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
91    o diagnostics pkg: change pointers so that 1 diagnostic can be used
92      several times with different frequencies.
93    o mnc-ify the thsice package as requested by Daniel Enderton
94      - the monitor--MNC output needs work
95      - many attributes need to be added (most are currently blank)
96    o mnc-ify theaim_v23 package as requested by Daniel Enderton
97      - many attributes need to be added (most are currently blank)
98    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
99    o add Sadourny like discretization to the 4th.O vorticity advection scheme
100    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
101      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
102         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
103    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
104     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
105    
106    checkpoint57i_post
107    o Diagnostics package was changed: diagnostic allocation is now deactivated
108      by setting an empty file name in the namelist (used to be by setting 0 frequency)
109    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
110      add 1rst Order upwind vertical Shear.
111    o add a quick fix for A/B checkpointing in OFFLINE mode
112    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
113      end-run around the C/Fortran linking horror in eesup/src/timers.F
114    o added pkg/runclock: allows user to terminate run based on wall clock
115    o added non-hydrostatic scaling parameter: nh_am2
116    o pkg/my82: futile attempt to make results compiler-independent by adding
117      some "_d 0", etc. no effect.
118    o for mnc output, fill the 'T' coordinate var with myTime and create a
119      separate 'iter' variable for iteration count
120    o pkg/diagnostics:
121      add new capability: output of Global/Regional & per-level statistics ;
122      tested against monitor output (including land & thSIce) on various exp.
123    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
124    
125    checkpoint57h_done
126      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
127      data.diagnostics, data.gchem, data.ptracers) is done.
128    
129    o pkg/diagnostics: prepare for Global/Regional statistics.
130      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
131    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
132      and rename it: DIFFERENT_MULTIPLE
133    
134    checkpoint57h_post
135    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
136    o pkg/diagnostics: change output frequency, now in seconds (instead
137      of Nb of iterations). This requires to change data.diagnostics.
138    checkpoint57h_pre
139    
140    o in mnc, let the user create the output dir if both mnc_outdir_date
141      and mnc_outdir_num are false
142    o add fflags() to pkg/diagnostics which allows one to specify, on a
143      per-file basis, the file precision [default behavior is unchanged]
144    o added diagnostics to pkg/kpp, including computation of mixed layer
145      depth based on a temperature/density criterion
146    o updated verification/natl_box to test the new pkg/kpp diagnostics
147    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
148    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
149    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
150      not mnc -- this mistake was found by JMC and is now corrected
151    
152    checkpoint57g_post
153    o add Adams-Bashforth 3rd Order time stepping:
154      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
155      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
156    checkpoint57g_pre
157    
158    o make lambda[Theta,Salt]ClimRelax spatially varying
159      (default remains spatially uniform constant based on tau)
160    o added new control variables
161      * init. uVel, vVel, etanN
162      * lambda[Theta,Salt]ClimRelax
163    o separate masks used for ctrl_pack/unpack 'from write_grid' output
164      (suggested by G. Forget)
165    
166    checkpoint57f_post
167    o add parameter "baseTime" = model base time = time at iteration zero
168      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
169      account for baseTime shift
170    o move Coriolis arrays from PARAMS.h to GRID.h
171    checkpoint57f_pre
172    
173    o mnc-ifying the seaice package
174    o introduced an alternative length scale calculation for use in the limiting
175      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
176    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
177    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
178      as well as grad(vort3).  Made it compatible with both approximate form
179      for the cubed sphere and full form of these gradients.  Added flag
180      useFullLeith to select between approximate and full form.  
181    o add "d0" in getcon.F to reduce differences between compilers/platforms
182      update output.txt of exp. fizhi-gridalt-hs
183    o change port_rand funtion to allow to set the seed.
184    o fix obscure MNC bug involving conversion between reals and integers
185      - it caused no problems with certain (eg. gcc, ifc) compilers but the
186        new version is now more standards-compliant
187    o adjoint-related modifications
188      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
189      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
190      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
191    
192    checkpoint57e_post
193    o Adding eddy stress controls a la Ferreira et al.
194    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
195    
196    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
197      update output.txt of exp. fizhi-gridalt-hs
198    o add more "Z" dimensions and associated coordinate vars to MNC
199    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
200    o parameter calendarDumps: when set, approximate months (30-31 days) and years
201      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
202      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
203      months and years.  Requires pkg/cal.
204    o diagnostics: add pickup functionality
205      - off by default for backwards compatibility
206      - current version only uses MDSIO -- MNC will be added
207    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
208    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
209    
210    checkpoint57d_post
211    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
212    o modify verification/ideal_2D_oce so that it tests the creation of mnc
213      output from the diagnostics package
214    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
215    o make genmake2 more portable by using ".$FS" instead of ".f" for more
216      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
217    o add coordinate variables to the MNC output from the diagnostics package
218    o change MNC-flags default value: true when useMNC=TRUE
219    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
220      the ability (off by default) to read the grid information using MNC
221    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
222    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
223    o do snap-shot diagnostics at the middle of the time-interval (instead of
224      at the end).
225    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
226      new test for AIM with thSIce + slab-ocean
227    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
228    o move state variable diagnostics to the beginning of the time step ;
229      (note: still needs some work specially for snap-shot diagnostics)
230      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
231    
232    checkpoint57c_post
233    o Change testing option (-ieee) to get closer agreement between g77 & ifort
234    o generate new output.txt files on faulks with g77 & the new -ieee option
235    checkpoint57c_pre
236    
237    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
238      update output.txt of exp. global_ocean.90x40x15
239    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
240      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
241    o add saltFlux(+File) forcing capability with periodicExternalForcing
242    o allow to use pkg diagnostics for GM-Redi & ThSIce output
243    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
244    o improvements for the MNC output from DIAGNOSTICS:
245      - correct handling of the unlimitied dimension
246      - all dims now have associated coordinate variables
247      - variables located at U, V, and Corner ("Z") points are now written
248        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
249        *all* data points are output
250    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
251    o added pkg/seaice/seaice_monitor.F
252    o mdsio_readfield.F can now read files visible only to master MPI process.
253    o pkg/seaice: some test code for ice-modified ocean stress
254    o exf_getffields interpolation defaults to bilinear for all scalar forcing
255      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
256      spurious negative numbers for precipitation and humidity.  Will cause
257      some small numerical differences for integrations using pkg/exf/exf_interp.F.
258    o pkg/ctrl/
259      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
260        May be enabled via doPackDiag
261      *  introduce z-scaling of
262         + gradient (doZscalePack) and
263         + control (doZscaleUnpack)
264    o pkg/mdsio/
265      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
266      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
267    
268    checkpoint57b_post
269    o simplify options in diagnostics_fill arguments (remove weird combinations)
270    o fix MNC coordinate variables so that they now contain per-face index
271      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
272      general, EXCH2 grids are only aligned to a "local" coordinate system
273    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
274    o Implement instantaneous output within pkg diagnostics:
275      setting a negative frequency in data.diagnostics produces
276     "snap-shot" output (as opposed to time-average if freq > 0)
277    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
278      NOTE: change ptracer diagnostics name: use 2 characters to work with
279            more than 9 tracers. Add also diagnostics of advect & diffus flux.
280    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
281      becomes the coordinate variable for the 'T' dimension
282    o add CF-style coordinate variables to MNC
283      - just a first cut:  numbers are meaningless on the cubesphere and
284        missing along the T axis but otherwise it works!
285    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
286    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
287    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
288      this is based directly on what the model compute, so that the content of
289      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
290    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
291    o clean up build options files for SunOS, in particular
292      - remove -traditional from xmakedepend
293      - change -xarch=v9 to -xarch=native for f77
294      - restore use of make (not gmake)
295      - add CC=gcc if using g77
296    o changes per discussion of AM, JMC, & EH3 today:
297      - move redundant "grid" variables out of "state" -- in preparation of
298        creating proper CF-style coordinate variables and in recognition
299        that any/all grid variables can be easily copied (eg. w/NCO) from
300        the grid files into any of the other NetCDF files
301      - *always* output grid variables with MDSIO (this will eventually be
302        changed)
303      - output MNC grid file if useMNC is true
304    o every instance of _END_MASTER() has been found and replaced with
305      _END_MASTER( myThid ) in order to satisfy certain picky Sun
306      preprocessors
307    o re-arrange diagnostics pkg initialisation:
308     - allow each package to extend the available diagnostics list
309     - add some checking and fix small problems (multi-threaded, ...)
310     - new S/R diagnostics_fill (replace fill_diagnostics):
311       look through the short list of active diag. (instead of the long list)
312       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
313    
314    checkpoint57a_post
315    o this set of changes restores TAMC compatibility
316      tested for global_ocean.90x40x15 adjoint on trough
317      (what a pain)
318    
319    checkpoint57a_pre
320    o some modifs in tools/build_options for sunos
321    o call ctrl_pack for ctrl at end for optimcycle=0
322    
323    checkpoint57
324    o add horizontal bi-harmonic viscosity for vertical velocity
325      - new parameter viscA4W (defaults to viscA4)
326      - affects only non-hydrostatic code
327      - to be done: no-slip lateral boundary conditions
328    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
329    o implement Implicit Vertical advection for pTracers
330    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
331      (implemented also for implicit vertical diffusion & advection)
332    o OBCS: extend application of tracer open boundary conditions
333      to a strip beyond the boundary of width Olx/Oly
334    o add call monitor to TAF set of required calls (flow directives)
335      and include in natl_box_adjoint
336    o untangle a few ifdefs related to cost, ctrl, autodiff
337      untangel a few ALLOW_ECCO_OPTIMIZATION
338    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
339      (theta2, salt2 in ecco_cost_weights)
340    
341    checkpoint56c_post
342    o OBCS as control variables
343      - update ctrl_ad_diff.list, obcs_ad_diff.list
344      - remove balance of obcs controls from default
345      - fix index bug nobcs in ctrl_init
346      - fix dummy fields filen in ctrl_pack
347      - add dummy weights for obcs
348    o lsopt: comment out fort.94 output
349    o optim:
350      - remove unnecessary header files
351      - adjusted namelists
352      - add xerbla.F to Makefile
353    o exf:
354      - multiple modifications of exf_check_range
355      - unit change in exf_init_runoff from [m/year] to [m/s]
356    o mdsio:
357      - i/o-vector change debugLevel from debLevA to debLevB
358    
359    checkpoint56b_post
360    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
361      is called from DO_THE_MODEL_IO
362      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
363      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
364      - clean up PTRACERS_WRITE_TIMEAVE a little
365    o add another verification experiment that tests both the cfc-pkg and
366      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
367      reactive tendencies treated inline with regular timestepping
368    o testreport previously did a lousy job of comparing small numbers, so
369      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
370      implemented in the little c-progam tmp_cmpnum.c which is embedded in
371      testreport.
372    o ptracers_monitor: bug fix for MPI
373    
374    checkpoint56a_post
375    o GCHEM: finish reorganizating the package
376      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
377        (introduces another 3D-array for each passive tracer, but only if
378        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
379        gchemTendency is not needed because the timestep is done separately)
380      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
381      - GCHEM is now---more or less cleanly---separate from PTRACERS
382      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
383        so clear to me how that should be done in a general way.
384    o CFC: improve formatting of output in CFC_ATMOS
385    o PTRACERS:
386      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
387        that ALL experiments with ptracers enable can be checked. This makes
388        GCHEM_MONITOR obsolete.
389      - include a runtime parameter PTRACERS_monitorFreq that defaults to
390        monitorFreq
391      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
392    o add PTRACERS (PTR0[1-5]) to testreport output
393    o exf_check_range:
394      * default changed to .TRUE.
395      * will check values for niter0 if debLevA, every timestep if debLevB
396      * STOP in exf_check_range if 'out of range'
397      * range chosen generous to allow for potential extema
398      TBD: a version with stricter range
399           permitted range would be runtime parameters
400    o GMredi:
401      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
402      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
403      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
404    o GCHEM:
405      - move call to GCHEM_FORCING_SEP, so that it is now called before
406        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
407      - introduced a useGCHEM runtime flag and applied it everywhere.
408      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
409        this flag is now only visible within GCHEM-pkg routines.
410      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
411        be replaced by a 3D array that is computed before thermodynamics; for
412        this, the tracer ID iTracer had to be included into the parameter list
413        of ptracers_forcing
414      - set up forward_step to call gchem_forcing, that will replace
415        gchem_forcing_int in ptracers_forcing
416      - cleaning up
417    o small cleaning of exch2: remove files that are also in eesupp/src
418    
419    checkpoint56
420    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
421    o mnc: cleanup "full" files--fixes out-of-memory problem
422    o ECCO-GODAE
423      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
424      * fully merged and updated from SIO code
425        windstress sign change affects
426        - exf_inscal_[u/v]stress
427        - sign of xx_tau[u/v] adjustments
428        - signs in cost_scat
429      * ctrl_get_gen: avoid update of tau[u/v] for first few days
430      * natl_box_adjoint updated and compressed
431      * 2-level checkpoint switch added
432        (tested in EXP. 1 of natl_box_adjoint)
433      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
434    o SVD
435      * first complete, non-hacked version for SVD calculations
436      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
437        performed via direct access files admtlm_vector.it????
438        (via ctrl_[un]pack)
439      * optimcycle is used for ARPACK iteration counter
440        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
441      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
442        and add linear transforms where necessary
443      * controls are initial/final SST, SSS (can be extended; need to check
444        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
445    o mdsio: filename info to both stderr, stdout
446    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
447      from sign change
448    
449    checkpoint55j_post
450    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
451      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
452    o add consistent build directories and .cvsignore files to verification
453    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
454    o make all subroutines 30 or less characters in length for certain older
455      compilers to work (a thorough search only turns up two routines in
456      pkg/ptracers)
457    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
458      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
459    
460    checkpoint55i_post
461    o change arrays for total vertical diffusivity (2.D if explicit,
462      3.D if implicit) ; each ptracer uses its own background value.
463    o added mnc/NetCDF output capability to ocn_compon_interf
464      - added bits to verification/cpl_aim+ocn so that it can run on
465        ITRDA and other clusters without the mpirun "-wd" option
466    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
467      configuration
468    o give MNC the ability to create additional files rather than
469      exceeding a specified file size limit "MNC_MAX_FILESIZE"
470      - the default is just less than 2GB which is a practical limit
471        on many systems
472    o Compute the non-local term using either KPP vertical diffusivity (=default)
473       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
474    
475    checkpoint55h_post
476    o add verification test "vermix"
477    o remove all the *_ioinc flags and replace with the single global
478      outputTypesInclusive flag
479    o allow to set a vertical profile of vertical diffusivity for T & S
480    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
481    o useMNC moved from data.mnc to data.pkg
482    
483    checkpoint55g_post
484    o Renaming carbon AD experiments to comply with testreport conventions
485    o Updating adjoint of Held-Suarez hs94.1x64x5
486    o Fixing directives for non-ECCO forward_step, after ECCO directives
487      have been fixed to avoid recomp. of do_oceanic_phys
488      Works well for global_ocean.90x40x15,
489      but recomp. issue remains for carbon
490    o Updating adjoint output for natl_box_adjoint after
491      pkg/ecco has been modified (see taga c55d_post)
492    
493    checkpoint55f_post
494    o rename to timeave_init_fixed
495    
496    checkpoint55e_post
497    o some delicate re-shuffle of store directives to avoid one
498      extra call of do_oceanic_physics
499      affects ecco_the_main_loop.F, do_oceanic_physics.F
500      checkpoint_lev1_directives.h
501    o NB: this may break global_ocean adjoint temporarily,
502      but it is clear how to fix it. Will do later, need this now.
503    
504    checkpoint55d_post
505    o ECCO specific cost function terms (up-to-date with 1x1 runs)
506    o ecco_cost_weights is modified to 1x1 runs
507    o modifs to allow observations to be read in as
508      single file or yearly files
509    o enable to read exf forcing fields as either
510      single file or yearly files (flag useExfYearlyFields)
511    checkpoint55d_pre
512    
513    o switch between 2-level and 3-level checkpointing
514    o add ability of MNC to write local and "partial" (eg. 2D slices where
515      the full 3D field is never actually stored) arrays to NetCDF files
516      with the correct (that is, the complete multi-dimensional) set of
517      array indicies
518      - used in mom_vecinv() to write the diagFreq output
519      - tested (demonstrated) in verification/aim.5l_cs
520    o further mnc-ification
521      - add verification/lab_sea to the list with mnc setups
522      - fix undefined mnc v-names in cd_code
523      - add kpp to mnc output (both snapshot and timeave)
524    o non-hydrostatic code
525      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
526        in calc_gw.F
527      - defaults to viscAh
528      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
529        friction or Leith) in non-hydrostatic mode, as long as there is
530        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
531    o pkg/cost
532      extend simple cost functions to treat time mean quantities
533      (T,U,V) via cost_accumulate_state from cost_tile
534    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
535        be 2 times larger than the minimum size the advection scheme requires.
536        now get a perfect conservation of salt in advect_cs test-exp (updated)
537    o GGL90 (Gaspar's TKE mixed layer)
538      - add horizontal diffusion of TKE, requires exchanges in
539        do_fields_blocking_exchanges, horizontal diffusivity is zero by
540        default. In OPA there is no horizontal diffusion of TKE but the
541        mixing coefficients are computed from a horizontal average of TKE of
542        6 points or so. I think that diffusion has a little more physical
543        justification.
544      - clean up ggl90_calc in the hope of reducing memory usage (this hope
545        was in vain)
546      - mask tke-variable in ggl90_init
547    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
548    o fix biharmonic diffusion on CS-grid.
549    o more obcs stuff
550      - added obcs_external_fields_load as an alternative to the EXF-pkg option
551        for reading boundary values. This routine is called from
552        obcs_prescribe_read
553      - updated obcs_check
554      - changed sponge layer relaxation parameter units for days to seconds
555      - turned off sponge layer by default
556      - changed argument list of OBCS_CALC to myTime+deltaTclock
557      - fixed about 35 bugs in obcs_external_fields_load
558    
559    checkpoint55c_post
560    o obcs stuff
561      - new runtime flags useOBCSprescribe, useOBCSbalance
562      - re-arranged obcs_calc
563      - moved exf_getobcs to obcs_prescibe_read
564        obcs_prescibe_read is called after ORLANSKI stuff
565        and independent of it (executable can contain all).
566      - updated obcs_check
567      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
568        These may be necessary only if tangential velocities are
569        prescribed at OB, not sure, needs testing.
570    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
571      which simplifies the calls and passes the ifc check-bounds test
572    
573    checkpoint55b_post
574    o add a 2D scalar, Z location, exchange_2 routine.
575    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
576      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
577      affects advect_cs results (for the wrong reason): update output.txt
578    o use a more standard discretization for biharmonic viscosity ;
579     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
580      affects results of dome set-up: update output.txt
581    o fix gad_advection.F (CubedSphere part), back to version 1.23
582    o fix bug in mom_vi_del2uv.F (CubedSphere part).
583    
584    checkpoint55a_post
585    o merged code to
586      * prescribe/read time-dependent open boundaries
587        (works in conjunction with exf, cal)
588      * sponge layer code for open boundaries
589      * each boundary N/S/E/W now has its own CPP option
590        (healthy for the adjoint)
591    
592    checkpoint55
593    o up-to-date adjoint of previous breaks
594      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
595      - global_ocean_ebm: adjoint still needs fix (TLM ok)
596      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
597      - carbon: * remove tr1-related adjoint verification
598                * add ptracer as control variable
599    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
600      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
601    
602    checkpoint54f_post
603    o in verification/carbin/ remove experiment related to
604      ALLOW_PASSIVE_TRACER (array tr1 etc)
605      code_ad/ input_ad/ results_ad
606    
607    o add two new packages
608      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
609        + subject to optimization (memory)
610      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
611        + subject to reordering (many GOTOs in the original code)
612        + so far opps is called for every (i,j) point, and then operates in
613          the vertical; one may want to reorder the scheme in order operate in
614          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
615          fields)
616    o overhaul of IO so that we now have flags for MDSIO and/or MNC
617      - all verification tests compile and run with linux_ia32_g77
618      - defaults are compatible with current input files--nothing
619        should change if you were not previously using MNC
620      - MNC output has been added in numerous places (eg. timeave)
621        but there are still a few writes not yet do-able with MNC
622        (this is in progress)
623      - flags now allow for either/or/both use of MDSIO and MNC and
624        documentation will soon follow
625      - numerous small formatting cleanups for ProTeX
626    o add version info (via BUILD_INFO.h) to MNC and stdout
627    
628    checkpoint54e_post
629    o add two new packages
630      - pp81 (Packanowski and Philander, 1981), Richardson number and
631        stratification dependent mixing
632      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
633      - these scheme operate in a similar manner as KPP (without ghat, of
634        course), however there is only one diffusivity that is used for both
635        temperature and salinity (and passive tracers)ç
636    o add offline package
637    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
638      provided by Stephanie Dutkiewicz
639    o genmake2: add ability to search for C compilers and cleanup test output
640      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
641    
642    checkpoint54d_post
643    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
644    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
645      leading to additional shift by 5 days each year of integration
646       (i.e. leading to considerable offset over the years)
647    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
648    o start with no AB and no initial filtering (staggerTimeStep):
649      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
650    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
651      (external loading & cpl import/export stay in forward_step.F)
652    o update coupling interface to work with new staggerTimeStep
653    o change MDSIO ptracers_pickup.
654    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
655    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
656    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
657    
658    checkpoint54c_post
659    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
660      this affects (truncation error) output.txt of test-exp:
661       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
662    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
663    o change Qnet to always be the net heat flux, (+upward).
664      affects (truncation error) output of natl_box exp.: updated
665    o define the max number of passive tracers in PTRACERS_SIZE.h
666    o start to test mnc routinely in exp0
667    o add sea-ice loading (sIceLoad) as a new forcing field.
668    
669    checkpoint54b_post
670    o add testreport "-j JOBS" option for parallel builds (tested and pretty
671       impressive on Altix and Opteron systems)
672    o diagnostics can now write NetCDF files through the mnc package
673    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
674    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
675    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
676      affects (truncation error) output of lab_sea & natl_box exp.: updated
677    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
678    
679    checkpoint54a_post
680    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
681    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
682    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
683    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
684      + internal_wave (shift in writing cg2d_ini_res)
685    checkpoint54a_pre
686    
687    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
688      - modified verification/lab_sea and natl_box_adjoint accordingly
689    
690    checkpoint54
691    checkpoint53g_post
692    o prepare splitting of thermodynamics: store convect.counter in common block
693    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
694      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
695    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
696    o new parameter "nShapS": allow to treat differently S from T (nShapT)
697    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
698    o restore adjointability
699    
700    checkpoint53f_post
701    o modifications that affect AIM experiment results (update output.txt):
702      - no advection of S at top interface Nr (pkg/generic_advdiff)
703      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
704    o AIM pkg:
705      - include stability function into surf.Flux derivative relative to Tsurf
706      - calculate clear-sky radiation & surface temp. change (for diagnostics)
707    
708    checkpoint53e_post
709    o merged cylindrical coord configuration
710    o added rotating_tank experiment
711    checkpoint53e_pre
712    
713    checkpoint53d_post
714    o faulks upgraded: re-generate output.txt that have changed:
715       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
716    o Added Bryan and Lewis, 1979, vertical diffusivity profile
717    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
718    o added Sadourny discretization of Coriolis
719      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
720      - re-enabled use of omega3 (useAbsVorticity)
721    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
722      vector-invariant equations
723      - note: does *NOT* yet use same variable visc. for no-slip BC's.
724    o recoded the lateral boundary conditions for non-hydrostatic w, this time
725      hopefully without new bugs
726      - still to do: biharmonic friction for non-hydrostatic w
727    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
728    o regenerated output for global_ocean_ebm (using -ieee)
729    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
730      of mom_common/
731      - simple re-arrangement of instructions within computing loop
732    checkpoint53d_pre
733    
734    checkpoint53c_post
735    o new version of coupler for AIM+thSIce and Ocean models
736     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
737     - land: change Evaporation of snow
738     - aim with thSIce: fix bug in snow-precip.
739    o changes to calc_gw.F
740     - bug fix for w^2 term near the bottom boundary
741     - (hopefully) improve the lateral slip boundary condtions for use with
742        partial/looped cells
743      - because the bug fix changes two verification experiments anyway (exp5
744        and plume on slope), change the lateral boundary condition from half slip
745        to the value of no_slip_sides
746    o ebm package wasnt quite up to the parallel task. Fixed that.
747    o Adjoint of EBM package + verification
748      * TLM OK
749      * ADM not sufficient accuracy yet (needs further testing)
750    
751    checkpoint53b_post
752    o Commiting new energy balance model to repository
753      * package is pkg/ebm
754      * verif. is verification/global_ocean_ebm
755      * references are in ebm_driver.F
756    C      * X. Wang, P. Stone and J. Marotzke, 1999:
757    C        Global thermohaline circulation. Part I:
758    C        Sensitivity to atmospheric moisture transport.
759    C        J. Climate 12(1), 71-82
760    C      * X. Wang, P. Stone and J. Marotzke, 1999:
761    C        Global thermohaline circulation. Part II:
762    C        Sensitivity with interactive transport.
763    C        J. Climate 12(1), 83-91
764    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
765    C        Destabilization of the thermohaline circulation
766    C        by atmospheric eddy transports.
767    C        J. Climate 7(12), 1870-1882
768    o Will need long integration testing.
769    checkpoint53b_pre
770    
771    o created pkg/mom_common in preparation for variable viscosity code
772    o renamed and split ini_mnc_io
773    o pkg/land: only liquid water can diffuse or run-off
774    o AIM using land: soil wetness availability account for snow
775    o added printMapIncludesZeros to EEPARMS namelist
776    
777    checkpoint53a_post
778    o restore TAMC compatiility for exf_constants.h
779      (no usage of _d in .h)
780    o Additional storing in KPP in an attempt to fix
781      TAMC problem with adjoint of KPP code.
782      (no success...)
783      Identical code works fine with TAF.
784    o Fixed verification/natl_box_adjoint experiments.
785      Initial conditions for Experiments 4 and 5 are now
786      set to "SEAICE_initialHEFF=0", which is more reasonable,
787      and hence gives results closer to that of Experiment 2.
788      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
789    
790    checkpoint53
791    o stable checkpoint with up to date adjoint
792      TLM tests only run for 1st grdchk at the moment. Its unclear if
793      this is a code problem or a problem with resetting code for g_
794      variables that is being autogenerated wrong.
795      Otherwise:
796       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
797       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
798         are both still in chaos following their security messes.
799    
800    checkpoint52n_post
801    o various build (mostly genmake2) changes including:
802      - ability to build/run more easily within Cygwin and MacOS X
803      - more complicated Makefiles with a stronger dependence on Gnu Make
804    o pkg/seaice modifications
805      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
806        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
807        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
808      - changed proxy for geostrophic velocity and updated
809        verification/lab_sea/results/* accordingly
810      - removed ADI dynamic solver from pkg/seaice
811      - replaced all occurrences of 1/CSTICE or 1/CSUICE
812        they caused a segmentation fault under certain circumstances
813      - removed unused field WATR
814    o bug fix in exf-package:
815      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
816         now reflect that.
817    o small fixes in the cal-package:
818      - set reference date to first of January for the 'model'-calendar
819      - failing of cal_CheckDate in cal_FullDate now actually results in a
820        warning
821    o small modifications in exf-package to increase flexibility:
822      - change climtempfreeze from a constant to a runtime parameter that
823        is specified in data.exf_clim (default = -1.9)
824      - introduce runtime parameter windstressmax (default = 2.0) that is
825        specified in data.exf
826    o fix in pkg/thsice:
827      - update Evap (Tsf changes) to be consistent with Latent heat flux
828      - maintain snow precipitation unchanged (even if Tsf >=0).
829     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
830    
831    checkpoint52m_post
832    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
833      this does not change any of the results, because myIter=0 in swfrac always
834      lead to jwtype=2 (the default anyway), but the call makes little sense
835      as a default
836    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
837    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
838      atmospheric model (AIM) to use it ; add a "slab ocean" component.
839    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
840    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
841    o extending useSingleCpuIO option to work with new exch2 I/O format
842      - old-style, missing-tile I/O is still accessible by defining CPP
843        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
844    o monitor package can write to NetCDF files and/or STDOUT
845    o fix re-definition bug in MNC_GRID_INIT_ALL()
846    o doc/api_reference added
847      - a framework for building an API Reference Manual using all
848        the "protex" comments embedded in the code
849      - see pkg/generic_advdiff, pkg/mnc for examples
850    o MNC:
851      - make myThid the last argument for all subroutines
852      - new default for the grid files: NO halos
853      - add useMNC and other run-time flags
854      - separate per-file-group handling of the unlimited dimension
855      - early initialization of MNC w/ flags read at the eeboot stage
856        and lookup tables set in initialize_fixed
857      - write all MNC output to a freshly-created directory
858    o thermodynamics sea-ice (thsice) is now tested with testreport.
859    o test exp. advect_cs: use the standard cs32 grid ; update output.
860    o Added functionality to grdchk:
861      pick global i,j,k position (or nearest wet) where to perform check.
862    
863    checkpoint52l_post
864    o new land formulation:
865      a) use ground enthalpy as prognostic variable to ensure exact
866         energy conservation.
867      b) account for water temperature and for latent heat of freezing
868         in all processes (rain, run-off, ground storage)
869      c) compute surface and ground temperature implicitly.
870    o aim_v23 modification for new land model:
871      a) Treat separately land / ocean / sea-ice surface fluxes
872         to allow implicit computation of land & sea-ice surface temp.
873      b) add snow precipitation.
874    checkpoint52l_pre
875    
876    o fix problem (when 1 tile is empty) in min/max monitor.
877    o fix bug in timeAve (u,vZetatave in common block)
878    o no restoring terms under ice for pkg/seaice
879    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
880    o bug fix for pkg/seaice pickups
881    o change MNC call locations and add coordinate attributes
882    o mask vorticity at the corner ; affects global_ocean.cs output
883    o fix ini_curvilinear_grid ; test CS experiments with mpi
884    o aim.5l_cs: modify sea-ice fraction input file ; update output
885    o exf: Adding simple range check routine for exf fields after read
886    
887    checkpoint52k_post
888    o removed top-level directory "diags"
889      - we migrated these functions to pkg/timeave a long time ago
890    o fixed bug introduced in pkg/monitor
891    o accuracy ctrlprec = 32 insuffient for gradient checks using
892      averaged fields (I/O via cost_averages)
893      -> use ctrl.h in active_file*.F to control I/O precision.
894    o paramter list of CALL ADTHE_MAIN_LOOP
895    o added initial do_the_model_io to ecco
896    o set all ...Freq to zero after cost_final
897      taveFreq, dumpFreq, pChkptFreq
898    o MAIN and ECCO differentiability restored
899    
900    checkpoint52j_post
901    o fix nchklev in tamc.h for global_ocean...
902    o Bringing flow and store directives up-to-date
903    o Really weird thing!
904      call do_the_model_io from the_main_loop with parameters
905      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
906      TAF places a faulty re-call of initialise_varia
907      after cost_final call which should not be there!
908    checkpoint52j_pre
909    
910    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
911      error messages
912    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
913    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
914      debug output
915    o modfied mdsio_writefield.F to handle non-global files under exch2
916    o update AIM Cubed-Sphere exp (aim.5l_cs):
917      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
918    o update AIM Equatorial Channel exp:
919      use standard aim_v23 pkg and change the SST fields to be more realistic.
920    o globalFile now works with exch2
921    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
922      mon_vort3.F to make exch2 friendly with >1 tile per cube face
923    o limit timeave output for hi-res integrations
924    
925    checkpoint52i_post
926    o removed CPP_EEOPTIONS.h from verification/*/code
927    o updated the tiling for global_ocean_pressure
928    checkpoint52i_pre
929    
930    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
931      the old pkg/aim).
932    
933    checkpoint52h_pre
934    o shortened offending lines in exch2_send_rx?.template
935    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
936    o genmake2: add build & execute test for NetCDF code
937    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
938      old grid files, moved CPP_EEMACROS.h to pkg/exch2
939    o added useSingleCPUIO flag to monitor.F and mon_out.F
940    o added temporary hack for sea-ice dynamics on the cube:
941      metric terms are ignored and it is assumed that
942      there is no sea-ice on cube faces 1, 2, 4, and 5.
943    
944    checkpoint52f_post
945    o added exch2 cube routines to pkg/exch2
946    o modified hs94.cs-32x32x5 to use it
947    o added new grid files to hs94.cs-32x32x5
948    checkpoint52f_pre
949    
950    checkpoint52e_post
951    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
952      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
953    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
954      to work with implicit vertical advection and AB ;
955    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
956    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
957     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
958    checkpoint52e_pre
959    
960    o fix bug in impldiff when Nr=1 or Nr=2.
961    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
962    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
963    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
964      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
965    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
966    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
967    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
968    
969    checkpoint52d_post
970    o re-tiled many expts to allow comparison in multi-processor mode
971      - updated output accordingly
972      - changed hs94.128x64x5 to use intial T from file rather than use the
973        random number generator
974    o add infrastructure in model routines for fizhi and gridalt packages
975    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
976    o changes to permit hi-res, cubed-sphere, configuration
977      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
978      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
979      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
980        of surface winds for the cube
981      (A verification experiment, based on global_ocean.cs32x15, but with
982       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
983       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
984       complete with example surface forcing files and matlab scripts to look
985       at the output and compare it with that of global_ocean.cs32x15.)
986    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
987       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
988       to conform to the common rule.
989    o check-in the first version of the coupler + interfaces for multi-components
990       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
991       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
992       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
993       - ocean and atmos. share the same horizontal grid (no interpolation).
994       - exchanges between component and coupler is done in forward_step
995    o new verification experiment, cpl_aim+ocn:
996       coupled ocean - AIM atmosphere on cs32 grid.
997    
998    checkpoint52d_pre
999    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1000    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1001    
1002    checkpoint52c_post
1003    o Fixing OPTIONS files for use of exf:
1004      - ALLOW_ECCO not needed
1005      - ECCO_CPPOPTIONS.h should not be included from
1006        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1007        as has been the case in the past
1008      - All cal/exf related options are currently set in
1009        single header file. Should remain so until we
1010        agree on a consistent new policy.
1011    o Removed all CPP options for cal package.
1012      cal has no more CPP options.
1013    o modified STOREs in GAD_ADVECTION
1014    o corrected key comp. for passkey
1015    
1016    checkpoint52b_post
1017    o new version: "thsice" of thermodynamic sea-ice pkg:
1018     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1019     - modify fluxes but do not change theta directly;
1020     - light cleaning of bulk_force pkg (still needed with thsice).
1021     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1022       + output_thsice.txt to test thsice & bulk_force pkgs.
1023    o put back grid & coriolis monitor output.
1024    checkpoint52b_pre
1025    
1026    o call "do_the_model_io" at the beginning (=> dump initial state)
1027    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1028    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1029      (need info on NUMBER_OF_PTRACERS)
1030    o missing PTRACERS headers in some routines
1031    o default tamc.h in pkg/autodiff supposed to crash
1032      to ensure proper customization
1033    
1034    checkpoint52a_post
1035    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1036      - moved surfaceTendencyTice from pkg/seaice to main code
1037      - subroutine FREEZE_SURFACE now limits only surface temperature
1038        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1039        => new output.txt for global_ocean.cs32x15 & global_with_exf
1040      - keep the old version of FREEZE for backward compatibility;
1041        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1042      - corresponding modifs for TAF directives
1043    o added surface flux output variables to TIMEAVE_STATVARS
1044    o time-averaged output for pkg/ptracers
1045    o fix problem with ECCO-related divided adjoint
1046      snapshot file was missing some ad-variables,
1047      but no warning issued by TAF
1048    
1049    checkpoint52a_pre
1050    o some bug fixes for #undef REAL4_IS_SLOW
1051    
1052    checkpoint52 = ecco_c52_e35
1053    o after testing adjoints of checkpoint51u_post
1054    
1055    checkpoint51u_post
1056    o this is the post-merge tag of the ecco-branch
1057      (needs another clean checkout and re-testing)
1058    o various natl_box_adjoint configs and results
1059      but no input fields
1060    o obcs adjoint not yet merged!
1061    o adding ECCO global 1x1 and 2x2 degree configs
1062    o updated/extended some store directives for seaice
1063    o pkg/ecco now containes ecco-specific part of cost function
1064    o top level routines the_main_loop, forward_step
1065      supersede those in model/src/
1066      previous input data.cost now in data.ecco
1067      (new namelist ecco_cost_nml)
1068    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1069    
1070    checkpoint51t_post
1071    o this is the pre-merge tag of the ecco-branch
1072    
1073    checkpoint51s_post
1074    o cleanup: removed various obsolete #define-s
1075    o pkg/grdchk
1076      - renamed 'ph-grd 3' to 'grad-res'
1077      - merged from ecco-branch
1078        (remaining bug fixes for obcs gradient checks)
1079      - additional high-precision output for testreport
1080        (grep for 'precision_grdchk_result')
1081    
1082    checkpoint51r_post
1083    o cleaned up or removed CPP_OPTIONS.h files
1084    o updated results for some of the tests to reflect the new
1085      optfiles (-ieee: -O0 instead of -O3)
1086    
1087    checkpoint51q_post
1088    o cd_code:
1089      - moved cd_scheme.F -> cd_code_scheme.F
1090      - separate read_checkpoint from cd_code_ini_vars.F
1091      - separated cd_code part from write_checkpoint
1092      - updated AD_SOURCE, generated .flow
1093      - added CD_CODE_VARS.h to the_main_loop
1094      - Moving cd_code specific store dir.s to pkg/cd_code
1095    o ctrl package totally restructured
1096      - pack/unpack now optional and decoupled from
1097        xx_/adxx_ I/O
1098      - ctrl_pack/unpack cleaned
1099        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1100      - confined inclusion of AD_CONFIG.h to where necessary.
1101    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1102    
1103    checkpoint51p_post
1104    o create initial cd_code package
1105      - WARNING: the initialization of fields within packages
1106        is broken because INI_FIELDS (where READ_CHECKPOINT is
1107        called) is called *before* PACKAGES_INIT_VARIABLES.
1108        This seems to be backwards since
1109        1) its important to initially zero the entire field including
1110           the "halo" region
1111        2) zeroing needs to be done *before* reading pickup info
1112           and the pickup call might or might not happen in any
1113           particular run
1114      - this needs an overhaul for R2
1115    o cleanup verification/*/code/GMREDI_OPTIONS.h
1116    o cleanup testreport
1117    
1118    checkpoint51o_post
1119    o bringing AD-related verif's up to date with genmake2
1120      - carbon/
1121      - global_ocean.90x40x15/
1122      - hs.94.1x64x5/
1123      - (front_relax/ )
1124    o (more) consistent directory structure for AD-related verif.'s
1125    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1126    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1127    o bug fix in find_alpha.F for MDJWF:
1128      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1129        change rho -> rho-rhoConst
1130      - replace call find_rho to find_rhonum
1131    o initialisation of rFlx extended to full array (required by TAF)
1132      and shifted to thermodynamics
1133    o removed PTRACERS.h in ptracers routine
1134    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1135    o Correcting initialisations for fVerU, fVerV.
1136    o helping TAF to recognize dependency on kUp for
1137      fVerU, fVerV
1138    o Replacing delZ by delR in pkg/ctrl/
1139    checkpoint51o_pre
1140    
1141    o undid all of cp51 pending some cleanups and discussion
1142    o added the [#include "AD_CONFIG.h"] statement to all files that need
1143       it for adjoint/tl #defines
1144     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1145     o removed tools/genmake since it no longer works
1146    
1147    checkpoint51n_post
1148    o modifications to make FREEZE flux visible to pkg/kpp
1149      - moved surfaceTendencyTice from pkg/seaice to main code
1150      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1151      - subroutine FREEZE now limits only surface temperature
1152        (this means new output.txt for global_ocean.90x40x15,
1153         global_ocean.cs32x15, and global_with_exf)
1154    o added surface flux output variables to TIMEAVE_STATVARS
1155    
1156    checkpoint51n_pre
1157    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1158    o added [#include "AD_CONFIG.h"] to all files that use the following
1159      defines:
1160      - ALLOW_ADJOINT_RUN
1161      - ALLOW_TANGENTLINEAR_RUN
1162      - ALLOW_ECCO_OPTIMIZATION
1163    
1164    checkpoint51m_post
1165    o incorporating changes to get TAMC/TAF working in genmake2
1166      - added new TAMC/TAF targets to the Makefile
1167      - various cleanups related to package handling
1168      - these changes should have no impact on the forward model
1169    
1170    checkpoint51l_post
1171    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1172     - faster algorithm for cal_addtime.F
1173     - higher precision arithmetic, where needed
1174     - pkg/exf *startdate variables changed from calendar date to
1175       model integration time
1176    
1177    checkpoint51l_pre
1178    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1179    o enable to apply restoring on S & T only in a latitude band.
1180    o update output (external_forcing_surf modif. change truncation errors)
1181       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1182    
1183    checkpoint51k_post
1184    o change default to: useNHMTerms=.FALSE.
1185     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1186       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1187     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1188        exp1, ideal_2D_oce
1189     - change data file of oceanic exp (leave the results unchanged for now)
1190       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1191    o set gravitySign automatically according to the vertical coordinate used
1192      (and change sign: back to "logical" value: +1 when R increases downward)
1193    o added an include barrier to the default CPP_OPTIONS.h and
1194      removed the #include "PACKAGES_CONFIG.h" from it
1195    o fix a bug in mom_fluxform (from chk51j_post)
1196    
1197    checkpoint51j_post
1198    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1199    o adjusted some flow directives (dynamics, thermodynamics)
1200    o added cubed-sphere case to test cost function
1201    o heckpoint_lev?_directives.h now include
1202      pkg-specific directives, whenever those are enabled.
1203    o Moving pkg-specific flow directives to corresponding pkg
1204      Moving pkg-specific differentiation list to corresponding pkg
1205      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1206      ---> conventions are
1207           - pkg_ad.flow
1208           - pkg_ad_diff.list
1209           - pkg_ad_check_lev?_dir.h
1210    
1211    checkpoint51i_post
1212    o merge of the branch-genmake2
1213      - knowingly breaks the older genmake
1214      - automatic generation of all ALLOW_${PKG_NAME} defines
1215      - new testreport supersedes older testscript
1216    o large number of package inclusion and header cleanups
1217    checkpoint51i_pre
1218    
1219    o new output for adjoin of global ocean vector invariant
1220    o fix for checkpoint of thermodynamic seaice and bulk_force
1221    o Steph gchem various cleanups
1222    
1223    checkpoint 51h_pre
1224    o fixed some single quotes
1225    o modify gchem pkg to be more versatile
1226    o modifications to clean up dic pkg
1227    o add pkg/cfc
1228    
1229    checkpoint51g_post
1230    o provide links for ARPACK and ADM*TLM
1231    o start removing verification/vero/
1232    o update AD-related stuff
1233      (in particular some IF-statements in model/src/ routines)
1234    o adding to verification/global_ocean.90x40x15/ adjoint of
1235      vector invariant setup
1236    
1237    checkpoint51f_post
1238    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1239    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1240      of tracer Green's fucntions for ocean inversion project.
1241    
1242    checkpoint51f_pre
1243    o Added on-the-fly spatial interpolation capability
1244        "USE_EXF_INTERPOLATION" to pkg/exf.
1245      - This is a temporary Cartesian-grid hack until
1246        the super-duper ESMF coupler becomes available.
1247      - See verification/global_with_exf/README for usage example.
1248      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1249        flags and modified pkg/seaice accordingly.
1250    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1251        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1252        non-local transport term.
1253    
1254    checkpoint51e_post
1255    o pkg/mom_vecinv:
1256      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1257      - add time-ave diagnostic of vorticity advection.
1258    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1259    o atmospheric geopotential: - include water vapor effect;
1260                                - use p^kappa in p* scaling.
1261    o land pkg: read initial state from files.
1262    o AIM : add stratospheric drag in the upper level
1263    
1264    checkpoint51d_post
1265    o change function ILNBLNK (=> last non-blank char.) to return zero
1266      (instead of the string length) when the string. char is empty
1267    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1268    o modif's to restore TAMC compatibility
1269      - avoid "_d" constructs in PARAMETER declarations
1270      - avoid interrupting lines by comment lines
1271    o Use cluster local disks for purely local I/O
1272      vs. globally visible disks needed for ctrl stuff
1273      (merged from ecco-branch)
1274      - new active_file_loc... and mdsio_..._loc routines
1275      - affected packages: autodiff, ctrl, grdchk, mdsio
1276    
1277    checkpoint51c_post
1278    o introducing integer flag debugLevel
1279      - debLevZero: suppress all output
1280      - debLevA: standard
1281      - debLevB: equivalent to current debugMode=.TRUE.
1282    o introducing pathname variable mdsioLocalDir for mdsio
1283      that can be specified at runtime
1284      (relevant for cluster I/O to local disk)
1285    `
1286    >>>checkpoint51b_post
1287    adjoint of ptracers
1288    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1289    o extended state in checkpoint_lev?, etc.
1290    o alternative ctrl/cost with tr1 or ptracer
1291    o new comlev1_bibj_ptracers
1292    o new ptracers.flow
1293    o made ptracers_forcing same as external_forcing_s
1294    o added verification for adjoint with ptracers
1295      - adm. grdchk fail so far
1296      - tlm. grdchk OK
1297      - checked tapelev/comlev recomputations: OK
1298    <<<checkpoint51b_pre
1299    
1300    checkpoint51a_post
1301    o added code for biogeochemistry package
1302      - new pkgs: dic, gchem
1303      - new subroutine in ptracers
1304    o modify code for biogeo packages
1305      - in model/src and pkg/ptracers
1306    
1307    checkpoint51
1308    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1309      - autodiff, ctrl, exf, grdchk, seaice
1310      kept separate packages
1311      - cost, ecco, obcs
1312    o updating verification/internal_wave, verification/lab_sea
1313      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1314    
1315    checkpoint50i_post
1316    o Preparing next differentiable checkpoint and sync
1317      of MAIN vs. ecco-branch
1318      - 1st step: this one is differentiable
1319      - 2nd step: next(! not this) checkpoint will have updated packages
1320                  from ecco-branch)
1321    
1322    checkpoint50h_post
1323    o new package "land": provide surface BC for AIM.
1324    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1325    o AIM: use true log-P extrapolation for near surface temp (= as in
1326        F.Molteni paper) ; update aim.5l_cs output.
1327    o New variable in PARM03 for more flexible pickups
1328    o somewhat cleaned package initialisation sequence for
1329      ctrl/ cost/ ecco/ in packages_... routines
1330    
1331    checkpoint50g_post
1332    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1333      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1334      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1335        made the default because of faster convergence than ADI
1336    
1337    checkpoint50f_post
1338    o exf totally restructured
1339      - replaced all exf_set_ routines by one generic exf_set_gen.F
1340        and made sure it's still differentiable
1341      - split exf_getffields.F into new exf_bulkformulae.F
1342      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1343      - updated adjoint/makefile and relevant verif. accordingly
1344    
1345    checkpoint50f_pre
1346     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1347          + change Evap over land. (update aim.5l_cs output)
1348     o added missing .cvsignores and made uniform across expts
1349     o changed configuration of tidal_basin_2d expt
1350     o added pkg/debug functions for tracing code in fatal crashes
1351     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1352     o new fn in pkg/monitor to stop model if solution grows too big
1353     o removed lots of single quotes from comments
1354    
1355    checkpoint50e_post
1356    o make KPP work with PTRACERS
1357     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1358       nearly a copy of kpp_transport_s
1359     - there is no analogue to SurfaceTendencyS, so I have to use
1360       gPtr(of the surface layer) instead
1361    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1362    checkpoint50e_pre
1363    
1364    checkpoint50d_post
1365    o change kpp output from multiple-record state files to single-record state
1366      files analogous to write_state.F
1367    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1368      analogous to the cg2d-related output.
1369    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1370      so that writing to internal file fn (with length 512) fails.
1371    checkpoint50d_pre
1372    
1373    checkpoint50c_post
1374    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1375    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1376    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1377    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1378    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1379    
1380    checkpoint50c_pre
1381    Merging from release1_p13:
1382    o bug fix for pkg/seaice dynamic solver
1383    o Added SEAICE_initialHEFF to pkg/seaice
1384    
1385    checkpoint50b_post
1386    o store u*,v* in gU,V instead of in guNm1,gvNm1
1387    o in order to put the momForcing out of the Adams-Bashforth:
1388      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1389      to timestep.F
1390    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1391    o re-generate output for highly sensitive test-exp:
1392       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1393    
1394    checkpoint50b_pre
1395    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1396    o corrected CPP option mismatch in exf_Bulk... functions for case
1397      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1398    
1399    checkpoint50a_post
1400    o Bug fix for merging between c50 and KPP.
1401      ikey was passed from thermodynamics to kpp_calc via
1402      common block rather than being recomputed in kpp_calc,
1403      in contradiction with new key itdkey.
1404      New key ikppkey created, and tamc.h headers updated.
1405    
1406    checkpoint50
1407    - 2nd step of merge with ecco-branch:
1408      merge changes in ecco-branch back into main trunk
1409    - bug fix in find_alpha
1410    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1411    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1412    - merged some sliced AD support routines
1413    
1414    checkpoint49
1415    merged from ecco-branch:
1416    o exf:
1417      - Enable initialisation of forcing fields to constant
1418        (runtime) values.
1419      - in exf_getffields.F
1420        Reduce i-/j-loop to interior domain, discarding overlaps.
1421        That also fixes wrong TAF-key computations for key_1, key_2
1422        with bulf formulae.
1423      - exf_init.F modify #ifdef for exf_init_evap
1424      - exf_getffieldrec.F, ctrl_getrec.F
1425        The following INT-usages are not safe:
1426          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1427          fldcount = int(fldsecs/fldperiod) + 1
1428        and were modified.
1429    o autodiff: checkpoint_lev...
1430      - updated storing for bulk formulae (some arrays were missing)
1431      - added state for seaice package
1432      - synchronized with main branch
1433    o DIVA:
1434      Modif.s in
1435      - the_main_loop.F
1436      - the_model_main.F
1437      and added cost_final_restore.F cost_final_store.F
1438      o With these changes, it is possible to fully separate
1439        the first forward run to compute the cost function (mdthe_main_loop)
1440        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1441        into separate model executions.
1442        This enables better tuning of DIVA to given queue sizes.
1443      o Loss of cost function value in consecutive DIVA runs is
1444        fixed by storing to 'costfinal' file.
1445      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1446        beginning/end of adjoint integration is accounted for.
1447      The current changes apply to TAF-1.4.26.
1448      TAF has one remaining bug, requiring one manual change
1449      (see MITgcm manual).
1450    o cal: synchronized between MAIN and ecco-branch
1451    
1452    checkpoint48i_post
1453    o Changes to restore differentiability of code w.r.t. previous tag
1454      (mostly adding new routines to make list and replacing
1455      pressure by totPhiHyd).
1456    o Updated and merged grdchk package
1457      - has both ADM and TLM checks
1458      - works for single- and multi-proc.
1459      - output cleaned
1460      - worked successfully for parallel DIVA
1461    o genmake:
1462      - Adding -platform=SP4
1463      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1464    o Modif. for DIVA:
1465      ctrl_unpack should not be called in intermediate DIVA interval.
1466      (similar thing would apply for active files such as
1467      tbar, sbar, psbar, which should not be reinitialised;
1468      only relevant for ecco-branch)
1469    
1470    checkpoint48h_post
1471    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1472    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1473    o Added SEAICE_initialHEFF to pkg/seaice
1474    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1475    
1476    checkpoint48g_post
1477    --- EOS:
1478    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1479      store total Potential in totPhyHyd for diagnostics & EOS.
1480    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1481    --- Pressure/geopotential gradient:
1482    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1483    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1484      ( changes results of global_ocean_pressure )
1485    o NLFS + z-coord.: add eta*Rho' contribution.
1486    o accurate phiHyd when using interface-W at the middle between 2 centers
1487     ( changes results of ideal_2D_oce )
1488    o includes r* 2nd term in potential gradient.
1489    
1490    checkpoint48f_post
1491    Merging from release1_p12:
1492    o Modifications for using pkg/exf with pkg/seaice
1493      - improved description of the various forcing configurations
1494      - added basic radiation bulk formulae to pkg/exf
1495      - units/sign fix for evap computation in exf_getffields.F
1496      - updated verification/global_with_exf/results/output.txt
1497    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1498      (SBO) core products, including oceanic mass, center-of-mass,
1499      angular, and bottom pressure (see pkg/sbo/README.sbo).
1500    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1501      to avoid negative values in shallow regions.
1502      - updated verification/natl_box/results/output.txt
1503      - updated verification/lab_sea/results/output.txt
1504    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1505    o Added useSingleCpuIO option (see PARAMS.h).
1506    o Updated useSingleCpuIO option in mdsio_writefield.F to
1507      work with multi-field files, e.g., for single-file pickup.
1508    o pkg/seaice:
1509      - bug fix in growth.F: QNET for no shortwave case
1510      - added HeffFile for specifying initial sea-ice thickness
1511      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1512    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1513      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1514    o pkg/seaice:
1515      - adjoint-friendly modifications
1516      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1517    
1518    checkpoint48e_post
1519    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1520    o dynamics: change definition of computational domain & adapt mom_fluxform
1521      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1522    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1523        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1524        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1525        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1526        inverted_barometer solid-body.cs-32x32x1
1527      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1528    
1529    checkpoint48d_post
1530    o in preparation for r*:
1531     a) use pre-computed gradient of hydrostatic potential:
1532        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1533     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1534        => affects results of glob_oce_pressure (different truncation error)  
1535      update output.txt of ideal_2D_oce & global_ocean_pressure
1536    
1537    checkpoint48d_pre
1538    o in preparation for r*:
1539      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1540      pass the 2 comp. of the grad. as arguments to momentum S/R.
1541      but for the moment, only used if it does not change the results.
1542    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1543    
1544    checkpoint48c_post
1545    Modifications in treatment of initial flux forcing controls
1546    to avoid extra storing of flux fields.
1547    
1548    checkpoint48c_pre
1549    o Added tidal_basin_2d experiment (currently 1D!)
1550    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1551    
1552    checkpoint48b_post
1553    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1554     (modification to pressure gradient not yet implemented)
1555    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1556      (for U & V) that are used for vertical advection of momentum.
1557    
1558  checkpoint48a_post  checkpoint48a_post
1559  o In preparation for r*, use temp. array to compute vertical transport  o In preparation for r*, use temp. array to compute vertical transport
1560     in flux-form momentum pkg. => change results of few test-exp.     in flux-form momentum pkg. => change results of few test-exp.

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