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revision 1.123 by jmc, Fri Jan 24 17:55:25 2003 UTC revision 1.524 by edhill, Fri Jul 29 18:24:35 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 MNC-ify the gmredi package -- tested and works w/ and w/o mnc
8      for ideal_2D_oce and lab_sea on linux_ia32_g77
9    
10    checkpoint57n_post
11    o adding precip control xx_precip 32
12    o adding swflux control xx_swflux 33
13    o Replacing 10 forcing penalty cost routines by 1 generic.
14    o Implementing partitioning in time-mean and variable adjustment
15      for atmos. state.
16    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
17    o in natl_box_adjoint:
18      * updated exp 1 to 10
19        (but does not have time-mean vs. variable split results yet)
20    o updated global1x1/*_seaice_adj/
21      to incorporate latest changes
22    o enable useSingleCpuIO for mdsio vector routines
23      (applies in particular to tapelev I/O)
24    o removed inefficient K-loop in all active_file*control*.F
25    
26    checkpoint57m_post
27    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
28      and advect_cs (use EXCH-2 and standard cs-32 grid files).
29    o pkg/exch2: filling of face-corner halo regions is optional
30      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
31    
32    checkpoint57l_post
33     tag before updating tutorials (pre-release-2)
34    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
35       for output and interpolation of input fields onto model grid)
36    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
37       Affects results of exp. rotating_tank ; update output.txt.
38    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
39          and taking the square quantity and/or using a fraction-weight field.
40    o fix aim_diagnostics_init.F mate numbers.
41    o add mnc output capability to diagnostics/diagstat and update
42      our cvsignore files for the ACSII output generated
43    
44    checkpoint57k_post
45    o lab_sea now uses diagnostics package and provides a suite of
46      new EXF diagnostics output.
47    
48    checkpoint57j_post
49    o exf
50      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
51        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
52        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
53      * extended diagnostics output
54        - now includes all EXF variables
55        - hs, hl moved to common block
56        - separate S/R for diagnostics, called after ctrl vector is added
57        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
58        - EXFqnet contains true Qnet (i.e. includes qsw)
59      * updated verif. lab_sea, global_with_exf
60      * Rearranging hflux (exf_mapfields -> exf_getforcing)
61        to ensure that diagnostics sees a true EXFqnet
62    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
63    o diagnostics pkg: change pointers so that 1 diagnostic can be used
64      several times with different frequencies.
65    o mnc-ify the thsice package as requested by Daniel Enderton
66      - the monitor--MNC output needs work
67      - many attributes need to be added (most are currently blank)
68    o mnc-ify theaim_v23 package as requested by Daniel Enderton
69      - many attributes need to be added (most are currently blank)
70    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
71    o add Sadourny like discretization to the 4th.O vorticity advection scheme
72    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
73      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
74         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
75    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
76     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
77    
78    checkpoint57i_post
79    o Diagnostics package was changed: diagnostic allocation is now deactivated
80      by setting an empty file name in the namelist (used to be by setting 0 frequency)
81    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
82      add 1rst Order upwind vertical Shear.
83    o add a quick fix for A/B checkpointing in OFFLINE mode
84    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
85      end-run around the C/Fortran linking horror in eesup/src/timers.F
86    o added pkg/runclock: allows user to terminate run based on wall clock
87    o added non-hydrostatic scaling parameter: nh_am2
88    o pkg/my82: futile attempt to make results compiler-independent by adding
89      some "_d 0", etc. no effect.
90    o for mnc output, fill the 'T' coordinate var with myTime and create a
91      separate 'iter' variable for iteration count
92    o pkg/diagnostics:
93      add new capability: output of Global/Regional & per-level statistics ;
94      tested against monitor output (including land & thSIce) on various exp.
95    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
96    
97    checkpoint57h_done
98      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
99      data.diagnostics, data.gchem, data.ptracers) is done.
100    
101    o pkg/diagnostics: prepare for Global/Regional statistics.
102      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
103    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
104      and rename it: DIFFERENT_MULTIPLE
105    
106    checkpoint57h_post
107    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
108    o pkg/diagnostics: change output frequency, now in seconds (instead
109      of Nb of iterations). This requires to change data.diagnostics.
110    checkpoint57h_pre
111    
112    o in mnc, let the user create the output dir if both mnc_outdir_date
113      and mnc_outdir_num are false
114    o add fflags() to pkg/diagnostics which allows one to specify, on a
115      per-file basis, the file precision [default behavior is unchanged]
116    o added diagnostics to pkg/kpp, including computation of mixed layer
117      depth based on a temperature/density criterion
118    o updated verification/natl_box to test the new pkg/kpp diagnostics
119    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
120    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
121    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
122      not mnc -- this mistake was found by JMC and is now corrected
123    
124    checkpoint57g_post
125    o add Adams-Bashforth 3rd Order time stepping:
126      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
127      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
128    checkpoint57g_pre
129    
130    o make lambda[Theta,Salt]ClimRelax spatially varying
131      (default remains spatially uniform constant based on tau)
132    o added new control variables
133      * init. uVel, vVel, etanN
134      * lambda[Theta,Salt]ClimRelax
135    o separate masks used for ctrl_pack/unpack 'from write_grid' output
136      (suggested by G. Forget)
137    
138    checkpoint57f_post
139    o add parameter "baseTime" = model base time = time at iteration zero
140      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
141      account for baseTime shift
142    o move Coriolis arrays from PARAMS.h to GRID.h
143    checkpoint57f_pre
144    
145    o mnc-ifying the seaice package
146    o introduced an alternative length scale calculation for use in the limiting
147      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
148    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
149    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
150      as well as grad(vort3).  Made it compatible with both approximate form
151      for the cubed sphere and full form of these gradients.  Added flag
152      useFullLeith to select between approximate and full form.  
153    o add "d0" in getcon.F to reduce differences between compilers/platforms
154      update output.txt of exp. fizhi-gridalt-hs
155    o change port_rand funtion to allow to set the seed.
156    o fix obscure MNC bug involving conversion between reals and integers
157      - it caused no problems with certain (eg. gcc, ifc) compilers but the
158        new version is now more standards-compliant
159    o adjoint-related modifications
160      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
161      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
162      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
163    
164    checkpoint57e_post
165    o Adding eddy stress controls a la Ferreira et al.
166    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
167    
168    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
169      update output.txt of exp. fizhi-gridalt-hs
170    o add more "Z" dimensions and associated coordinate vars to MNC
171    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
172    o parameter calendarDumps: when set, approximate months (30-31 days) and years
173      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
174      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
175      months and years.  Requires pkg/cal.
176    o diagnostics: add pickup functionality
177      - off by default for backwards compatibility
178      - current version only uses MDSIO -- MNC will be added
179    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
180    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
181    
182    checkpoint57d_post
183    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
184    o modify verification/ideal_2D_oce so that it tests the creation of mnc
185      output from the diagnostics package
186    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
187    o make genmake2 more portable by using ".$FS" instead of ".f" for more
188      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
189    o add coordinate variables to the MNC output from the diagnostics package
190    o change MNC-flags default value: true when useMNC=TRUE
191    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
192      the ability (off by default) to read the grid information using MNC
193    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
194    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
195    o do snap-shot diagnostics at the middle of the time-interval (instead of
196      at the end).
197    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
198      new test for AIM with thSIce + slab-ocean
199    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
200    o move state variable diagnostics to the beginning of the time step ;
201      (note: still needs some work specially for snap-shot diagnostics)
202      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
203    
204    checkpoint57c_post
205    o Change testing option (-ieee) to get closer agreement between g77 & ifort
206    o generate new output.txt files on faulks with g77 & the new -ieee option
207    checkpoint57c_pre
208    
209    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
210      update output.txt of exp. global_ocean.90x40x15
211    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
212      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
213    o add saltFlux(+File) forcing capability with periodicExternalForcing
214    o allow to use pkg diagnostics for GM-Redi & ThSIce output
215    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
216    o improvements for the MNC output from DIAGNOSTICS:
217      - correct handling of the unlimitied dimension
218      - all dims now have associated coordinate variables
219      - variables located at U, V, and Corner ("Z") points are now written
220        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
221        *all* data points are output
222    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
223    o added pkg/seaice/seaice_monitor.F
224    o mdsio_readfield.F can now read files visible only to master MPI process.
225    o pkg/seaice: some test code for ice-modified ocean stress
226    o exf_getffields interpolation defaults to bilinear for all scalar forcing
227      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
228      spurious negative numbers for precipitation and humidity.  Will cause
229      some small numerical differences for integrations using pkg/exf/exf_interp.F.
230    o pkg/ctrl/
231      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
232        May be enabled via doPackDiag
233      *  introduce z-scaling of
234         + gradient (doZscalePack) and
235         + control (doZscaleUnpack)
236    o pkg/mdsio/
237      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
238      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
239    
240    checkpoint57b_post
241    o simplify options in diagnostics_fill arguments (remove weird combinations)
242    o fix MNC coordinate variables so that they now contain per-face index
243      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
244      general, EXCH2 grids are only aligned to a "local" coordinate system
245    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
246    o Implement instantaneous output within pkg diagnostics:
247      setting a negative frequency in data.diagnostics produces
248     "snap-shot" output (as opposed to time-average if freq > 0)
249    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
250      NOTE: change ptracer diagnostics name: use 2 characters to work with
251            more than 9 tracers. Add also diagnostics of advect & diffus flux.
252    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
253      becomes the coordinate variable for the 'T' dimension
254    o add CF-style coordinate variables to MNC
255      - just a first cut:  numbers are meaningless on the cubesphere and
256        missing along the T axis but otherwise it works!
257    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
258    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
259    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
260      this is based directly on what the model compute, so that the content of
261      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
262    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
263    o clean up build options files for SunOS, in particular
264      - remove -traditional from xmakedepend
265      - change -xarch=v9 to -xarch=native for f77
266      - restore use of make (not gmake)
267      - add CC=gcc if using g77
268    o changes per discussion of AM, JMC, & EH3 today:
269      - move redundant "grid" variables out of "state" -- in preparation of
270        creating proper CF-style coordinate variables and in recognition
271        that any/all grid variables can be easily copied (eg. w/NCO) from
272        the grid files into any of the other NetCDF files
273      - *always* output grid variables with MDSIO (this will eventually be
274        changed)
275      - output MNC grid file if useMNC is true
276    o every instance of _END_MASTER() has been found and replaced with
277      _END_MASTER( myThid ) in order to satisfy certain picky Sun
278      preprocessors
279    o re-arrange diagnostics pkg initialisation:
280     - allow each package to extend the available diagnostics list
281     - add some checking and fix small problems (multi-threaded, ...)
282     - new S/R diagnostics_fill (replace fill_diagnostics):
283       look through the short list of active diag. (instead of the long list)
284       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
285    
286    checkpoint57a_post
287    o this set of changes restores TAMC compatibility
288      tested for global_ocean.90x40x15 adjoint on trough
289      (what a pain)
290    
291    checkpoint57a_pre
292    o some modifs in tools/build_options for sunos
293    o call ctrl_pack for ctrl at end for optimcycle=0
294    
295    checkpoint57
296    o add horizontal bi-harmonic viscosity for vertical velocity
297      - new parameter viscA4W (defaults to viscA4)
298      - affects only non-hydrostatic code
299      - to be done: no-slip lateral boundary conditions
300    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
301    o implement Implicit Vertical advection for pTracers
302    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
303      (implemented also for implicit vertical diffusion & advection)
304    o OBCS: extend application of tracer open boundary conditions
305      to a strip beyond the boundary of width Olx/Oly
306    o add call monitor to TAF set of required calls (flow directives)
307      and include in natl_box_adjoint
308    o untangle a few ifdefs related to cost, ctrl, autodiff
309      untangel a few ALLOW_ECCO_OPTIMIZATION
310    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
311      (theta2, salt2 in ecco_cost_weights)
312    
313    checkpoint56c_post
314    o OBCS as control variables
315      - update ctrl_ad_diff.list, obcs_ad_diff.list
316      - remove balance of obcs controls from default
317      - fix index bug nobcs in ctrl_init
318      - fix dummy fields filen in ctrl_pack
319      - add dummy weights for obcs
320    o lsopt: comment out fort.94 output
321    o optim:
322      - remove unnecessary header files
323      - adjusted namelists
324      - add xerbla.F to Makefile
325    o exf:
326      - multiple modifications of exf_check_range
327      - unit change in exf_init_runoff from [m/year] to [m/s]
328    o mdsio:
329      - i/o-vector change debugLevel from debLevA to debLevB
330    
331    checkpoint56b_post
332    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
333      is called from DO_THE_MODEL_IO
334      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
335      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
336      - clean up PTRACERS_WRITE_TIMEAVE a little
337    o add another verification experiment that tests both the cfc-pkg and
338      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
339      reactive tendencies treated inline with regular timestepping
340    o testreport previously did a lousy job of comparing small numbers, so
341      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
342      implemented in the little c-progam tmp_cmpnum.c which is embedded in
343      testreport.
344    o ptracers_monitor: bug fix for MPI
345    
346    checkpoint56a_post
347    o GCHEM: finish reorganizating the package
348      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
349        (introduces another 3D-array for each passive tracer, but only if
350        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
351        gchemTendency is not needed because the timestep is done separately)
352      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
353      - GCHEM is now---more or less cleanly---separate from PTRACERS
354      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
355        so clear to me how that should be done in a general way.
356    o CFC: improve formatting of output in CFC_ATMOS
357    o PTRACERS:
358      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
359        that ALL experiments with ptracers enable can be checked. This makes
360        GCHEM_MONITOR obsolete.
361      - include a runtime parameter PTRACERS_monitorFreq that defaults to
362        monitorFreq
363      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
364    o add PTRACERS (PTR0[1-5]) to testreport output
365    o exf_check_range:
366      * default changed to .TRUE.
367      * will check values for niter0 if debLevA, every timestep if debLevB
368      * STOP in exf_check_range if 'out of range'
369      * range chosen generous to allow for potential extema
370      TBD: a version with stricter range
371           permitted range would be runtime parameters
372    o GMredi:
373      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
374      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
375      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
376    o GCHEM:
377      - move call to GCHEM_FORCING_SEP, so that it is now called before
378        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
379      - introduced a useGCHEM runtime flag and applied it everywhere.
380      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
381        this flag is now only visible within GCHEM-pkg routines.
382      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
383        be replaced by a 3D array that is computed before thermodynamics; for
384        this, the tracer ID iTracer had to be included into the parameter list
385        of ptracers_forcing
386      - set up forward_step to call gchem_forcing, that will replace
387        gchem_forcing_int in ptracers_forcing
388      - cleaning up
389    o small cleaning of exch2: remove files that are also in eesupp/src
390    
391    checkpoint56
392    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
393    o mnc: cleanup "full" files--fixes out-of-memory problem
394    o ECCO-GODAE
395      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
396      * fully merged and updated from SIO code
397        windstress sign change affects
398        - exf_inscal_[u/v]stress
399        - sign of xx_tau[u/v] adjustments
400        - signs in cost_scat
401      * ctrl_get_gen: avoid update of tau[u/v] for first few days
402      * natl_box_adjoint updated and compressed
403      * 2-level checkpoint switch added
404        (tested in EXP. 1 of natl_box_adjoint)
405      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
406    o SVD
407      * first complete, non-hacked version for SVD calculations
408      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
409        performed via direct access files admtlm_vector.it????
410        (via ctrl_[un]pack)
411      * optimcycle is used for ARPACK iteration counter
412        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
413      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
414        and add linear transforms where necessary
415      * controls are initial/final SST, SSS (can be extended; need to check
416        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
417    o mdsio: filename info to both stderr, stdout
418    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
419      from sign change
420    
421    checkpoint55j_post
422    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
423      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
424    o add consistent build directories and .cvsignore files to verification
425    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
426    o make all subroutines 30 or less characters in length for certain older
427      compilers to work (a thorough search only turns up two routines in
428      pkg/ptracers)
429    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
430      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
431    
432    checkpoint55i_post
433    o change arrays for total vertical diffusivity (2.D if explicit,
434      3.D if implicit) ; each ptracer uses its own background value.
435    o added mnc/NetCDF output capability to ocn_compon_interf
436      - added bits to verification/cpl_aim+ocn so that it can run on
437        ITRDA and other clusters without the mpirun "-wd" option
438    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
439      configuration
440    o give MNC the ability to create additional files rather than
441      exceeding a specified file size limit "MNC_MAX_FILESIZE"
442      - the default is just less than 2GB which is a practical limit
443        on many systems
444    o Compute the non-local term using either KPP vertical diffusivity (=default)
445       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
446    
447    checkpoint55h_post
448    o add verification test "vermix"
449    o remove all the *_ioinc flags and replace with the single global
450      outputTypesInclusive flag
451    o allow to set a vertical profile of vertical diffusivity for T & S
452    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
453    o useMNC moved from data.mnc to data.pkg
454    
455    checkpoint55g_post
456    o Renaming carbon AD experiments to comply with testreport conventions
457    o Updating adjoint of Held-Suarez hs94.1x64x5
458    o Fixing directives for non-ECCO forward_step, after ECCO directives
459      have been fixed to avoid recomp. of do_oceanic_phys
460      Works well for global_ocean.90x40x15,
461      but recomp. issue remains for carbon
462    o Updating adjoint output for natl_box_adjoint after
463      pkg/ecco has been modified (see taga c55d_post)
464    
465    checkpoint55f_post
466    o rename to timeave_init_fixed
467    
468    checkpoint55e_post
469    o some delicate re-shuffle of store directives to avoid one
470      extra call of do_oceanic_physics
471      affects ecco_the_main_loop.F, do_oceanic_physics.F
472      checkpoint_lev1_directives.h
473    o NB: this may break global_ocean adjoint temporarily,
474      but it is clear how to fix it. Will do later, need this now.
475    
476    checkpoint55d_post
477    o ECCO specific cost function terms (up-to-date with 1x1 runs)
478    o ecco_cost_weights is modified to 1x1 runs
479    o modifs to allow observations to be read in as
480      single file or yearly files
481    o enable to read exf forcing fields as either
482      single file or yearly files (flag useExfYearlyFields)
483    checkpoint55d_pre
484    
485    o switch between 2-level and 3-level checkpointing
486    o add ability of MNC to write local and "partial" (eg. 2D slices where
487      the full 3D field is never actually stored) arrays to NetCDF files
488      with the correct (that is, the complete multi-dimensional) set of
489      array indicies
490      - used in mom_vecinv() to write the diagFreq output
491      - tested (demonstrated) in verification/aim.5l_cs
492    o further mnc-ification
493      - add verification/lab_sea to the list with mnc setups
494      - fix undefined mnc v-names in cd_code
495      - add kpp to mnc output (both snapshot and timeave)
496    o non-hydrostatic code
497      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
498        in calc_gw.F
499      - defaults to viscAh
500      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
501        friction or Leith) in non-hydrostatic mode, as long as there is
502        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
503    o pkg/cost
504      extend simple cost functions to treat time mean quantities
505      (T,U,V) via cost_accumulate_state from cost_tile
506    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
507        be 2 times larger than the minimum size the advection scheme requires.
508        now get a perfect conservation of salt in advect_cs test-exp (updated)
509    o GGL90 (Gaspar's TKE mixed layer)
510      - add horizontal diffusion of TKE, requires exchanges in
511        do_fields_blocking_exchanges, horizontal diffusivity is zero by
512        default. In OPA there is no horizontal diffusion of TKE but the
513        mixing coefficients are computed from a horizontal average of TKE of
514        6 points or so. I think that diffusion has a little more physical
515        justification.
516      - clean up ggl90_calc in the hope of reducing memory usage (this hope
517        was in vain)
518      - mask tke-variable in ggl90_init
519    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
520    o fix biharmonic diffusion on CS-grid.
521    o more obcs stuff
522      - added obcs_external_fields_load as an alternative to the EXF-pkg option
523        for reading boundary values. This routine is called from
524        obcs_prescribe_read
525      - updated obcs_check
526      - changed sponge layer relaxation parameter units for days to seconds
527      - turned off sponge layer by default
528      - changed argument list of OBCS_CALC to myTime+deltaTclock
529      - fixed about 35 bugs in obcs_external_fields_load
530    
531    checkpoint55c_post
532    o obcs stuff
533      - new runtime flags useOBCSprescribe, useOBCSbalance
534      - re-arranged obcs_calc
535      - moved exf_getobcs to obcs_prescibe_read
536        obcs_prescibe_read is called after ORLANSKI stuff
537        and independent of it (executable can contain all).
538      - updated obcs_check
539      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
540        These may be necessary only if tangential velocities are
541        prescribed at OB, not sure, needs testing.
542    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
543      which simplifies the calls and passes the ifc check-bounds test
544    
545    checkpoint55b_post
546    o add a 2D scalar, Z location, exchange_2 routine.
547    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
548      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
549      affects advect_cs results (for the wrong reason): update output.txt
550    o use a more standard discretization for biharmonic viscosity ;
551     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
552      affects results of dome set-up: update output.txt
553    o fix gad_advection.F (CubedSphere part), back to version 1.23
554    o fix bug in mom_vi_del2uv.F (CubedSphere part).
555    
556    checkpoint55a_post
557    o merged code to
558      * prescribe/read time-dependent open boundaries
559        (works in conjunction with exf, cal)
560      * sponge layer code for open boundaries
561      * each boundary N/S/E/W now has its own CPP option
562        (healthy for the adjoint)
563    
564    checkpoint55
565    o up-to-date adjoint of previous breaks
566      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
567      - global_ocean_ebm: adjoint still needs fix (TLM ok)
568      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
569      - carbon: * remove tr1-related adjoint verification
570                * add ptracer as control variable
571    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
572      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
573    
574    checkpoint54f_post
575    o in verification/carbin/ remove experiment related to
576      ALLOW_PASSIVE_TRACER (array tr1 etc)
577      code_ad/ input_ad/ results_ad
578    
579    o add two new packages
580      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
581        + subject to optimization (memory)
582      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
583        + subject to reordering (many GOTOs in the original code)
584        + so far opps is called for every (i,j) point, and then operates in
585          the vertical; one may want to reorder the scheme in order operate in
586          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
587          fields)
588    o overhaul of IO so that we now have flags for MDSIO and/or MNC
589      - all verification tests compile and run with linux_ia32_g77
590      - defaults are compatible with current input files--nothing
591        should change if you were not previously using MNC
592      - MNC output has been added in numerous places (eg. timeave)
593        but there are still a few writes not yet do-able with MNC
594        (this is in progress)
595      - flags now allow for either/or/both use of MDSIO and MNC and
596        documentation will soon follow
597      - numerous small formatting cleanups for ProTeX
598    o add version info (via BUILD_INFO.h) to MNC and stdout
599    
600    checkpoint54e_post
601    o add two new packages
602      - pp81 (Packanowski and Philander, 1981), Richardson number and
603        stratification dependent mixing
604      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
605      - these scheme operate in a similar manner as KPP (without ghat, of
606        course), however there is only one diffusivity that is used for both
607        temperature and salinity (and passive tracers)ç
608    o add offline package
609    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
610      provided by Stephanie Dutkiewicz
611    o genmake2: add ability to search for C compilers and cleanup test output
612      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
613    
614    checkpoint54d_post
615    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
616    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
617      leading to additional shift by 5 days each year of integration
618       (i.e. leading to considerable offset over the years)
619    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
620    o start with no AB and no initial filtering (staggerTimeStep):
621      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
622    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
623      (external loading & cpl import/export stay in forward_step.F)
624    o update coupling interface to work with new staggerTimeStep
625    o change MDSIO ptracers_pickup.
626    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
627    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
628    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
629    
630    checkpoint54c_post
631    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
632      this affects (truncation error) output.txt of test-exp:
633       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
634    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
635    o change Qnet to always be the net heat flux, (+upward).
636      affects (truncation error) output of natl_box exp.: updated
637    o define the max number of passive tracers in PTRACERS_SIZE.h
638    o start to test mnc routinely in exp0
639    o add sea-ice loading (sIceLoad) as a new forcing field.
640    
641    checkpoint54b_post
642    o add testreport "-j JOBS" option for parallel builds (tested and pretty
643       impressive on Altix and Opteron systems)
644    o diagnostics can now write NetCDF files through the mnc package
645    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
646    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
647    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
648      affects (truncation error) output of lab_sea & natl_box exp.: updated
649    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
650    
651    checkpoint54a_post
652    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
653    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
654    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
655    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
656      + internal_wave (shift in writing cg2d_ini_res)
657    checkpoint54a_pre
658    
659    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
660      - modified verification/lab_sea and natl_box_adjoint accordingly
661    
662    checkpoint54
663    checkpoint53g_post
664    o prepare splitting of thermodynamics: store convect.counter in common block
665    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
666      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
667    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
668    o new parameter "nShapS": allow to treat differently S from T (nShapT)
669    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
670    o restore adjointability
671    
672    checkpoint53f_post
673    o modifications that affect AIM experiment results (update output.txt):
674      - no advection of S at top interface Nr (pkg/generic_advdiff)
675      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
676    o AIM pkg:
677      - include stability function into surf.Flux derivative relative to Tsurf
678      - calculate clear-sky radiation & surface temp. change (for diagnostics)
679    
680    checkpoint53e_post
681    o merged cylindrical coord configuration
682    o added rotating_tank experiment
683    checkpoint53e_pre
684    
685    checkpoint53d_post
686    o faulks upgraded: re-generate output.txt that have changed:
687       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
688    o Added Bryan and Lewis, 1979, vertical diffusivity profile
689    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
690    o added Sadourny discretization of Coriolis
691      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
692      - re-enabled use of omega3 (useAbsVorticity)
693    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
694      vector-invariant equations
695      - note: does *NOT* yet use same variable visc. for no-slip BC's.
696    o recoded the lateral boundary conditions for non-hydrostatic w, this time
697      hopefully without new bugs
698      - still to do: biharmonic friction for non-hydrostatic w
699    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
700    o regenerated output for global_ocean_ebm (using -ieee)
701    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
702      of mom_common/
703      - simple re-arrangement of instructions within computing loop
704    checkpoint53d_pre
705    
706    checkpoint53c_post
707    o new version of coupler for AIM+thSIce and Ocean models
708     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
709     - land: change Evaporation of snow
710     - aim with thSIce: fix bug in snow-precip.
711    o changes to calc_gw.F
712     - bug fix for w^2 term near the bottom boundary
713     - (hopefully) improve the lateral slip boundary condtions for use with
714        partial/looped cells
715      - because the bug fix changes two verification experiments anyway (exp5
716        and plume on slope), change the lateral boundary condition from half slip
717        to the value of no_slip_sides
718    o ebm package wasnt quite up to the parallel task. Fixed that.
719    o Adjoint of EBM package + verification
720      * TLM OK
721      * ADM not sufficient accuracy yet (needs further testing)
722    
723    checkpoint53b_post
724    o Commiting new energy balance model to repository
725      * package is pkg/ebm
726      * verif. is verification/global_ocean_ebm
727      * references are in ebm_driver.F
728    C      * X. Wang, P. Stone and J. Marotzke, 1999:
729    C        Global thermohaline circulation. Part I:
730    C        Sensitivity to atmospheric moisture transport.
731    C        J. Climate 12(1), 71-82
732    C      * X. Wang, P. Stone and J. Marotzke, 1999:
733    C        Global thermohaline circulation. Part II:
734    C        Sensitivity with interactive transport.
735    C        J. Climate 12(1), 83-91
736    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
737    C        Destabilization of the thermohaline circulation
738    C        by atmospheric eddy transports.
739    C        J. Climate 7(12), 1870-1882
740    o Will need long integration testing.
741    checkpoint53b_pre
742    
743    o created pkg/mom_common in preparation for variable viscosity code
744    o renamed and split ini_mnc_io
745    o pkg/land: only liquid water can diffuse or run-off
746    o AIM using land: soil wetness availability account for snow
747    o added printMapIncludesZeros to EEPARMS namelist
748    
749    checkpoint53a_post
750    o restore TAMC compatiility for exf_constants.h
751      (no usage of _d in .h)
752    o Additional storing in KPP in an attempt to fix
753      TAMC problem with adjoint of KPP code.
754      (no success...)
755      Identical code works fine with TAF.
756    o Fixed verification/natl_box_adjoint experiments.
757      Initial conditions for Experiments 4 and 5 are now
758      set to "SEAICE_initialHEFF=0", which is more reasonable,
759      and hence gives results closer to that of Experiment 2.
760      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
761    
762    checkpoint53
763    o stable checkpoint with up to date adjoint
764      TLM tests only run for 1st grdchk at the moment. Its unclear if
765      this is a code problem or a problem with resetting code for g_
766      variables that is being autogenerated wrong.
767      Otherwise:
768       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
769       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
770         are both still in chaos following their security messes.
771    
772    checkpoint52n_post
773    o various build (mostly genmake2) changes including:
774      - ability to build/run more easily within Cygwin and MacOS X
775      - more complicated Makefiles with a stronger dependence on Gnu Make
776    o pkg/seaice modifications
777      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
778        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
779        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
780      - changed proxy for geostrophic velocity and updated
781        verification/lab_sea/results/* accordingly
782      - removed ADI dynamic solver from pkg/seaice
783      - replaced all occurrences of 1/CSTICE or 1/CSUICE
784        they caused a segmentation fault under certain circumstances
785      - removed unused field WATR
786    o bug fix in exf-package:
787      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
788         now reflect that.
789    o small fixes in the cal-package:
790      - set reference date to first of January for the 'model'-calendar
791      - failing of cal_CheckDate in cal_FullDate now actually results in a
792        warning
793    o small modifications in exf-package to increase flexibility:
794      - change climtempfreeze from a constant to a runtime parameter that
795        is specified in data.exf_clim (default = -1.9)
796      - introduce runtime parameter windstressmax (default = 2.0) that is
797        specified in data.exf
798    o fix in pkg/thsice:
799      - update Evap (Tsf changes) to be consistent with Latent heat flux
800      - maintain snow precipitation unchanged (even if Tsf >=0).
801     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
802    
803    checkpoint52m_post
804    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
805      this does not change any of the results, because myIter=0 in swfrac always
806      lead to jwtype=2 (the default anyway), but the call makes little sense
807      as a default
808    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
809    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
810      atmospheric model (AIM) to use it ; add a "slab ocean" component.
811    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
812    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
813    o extending useSingleCpuIO option to work with new exch2 I/O format
814      - old-style, missing-tile I/O is still accessible by defining CPP
815        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
816    o monitor package can write to NetCDF files and/or STDOUT
817    o fix re-definition bug in MNC_GRID_INIT_ALL()
818    o doc/api_reference added
819      - a framework for building an API Reference Manual using all
820        the "protex" comments embedded in the code
821      - see pkg/generic_advdiff, pkg/mnc for examples
822    o MNC:
823      - make myThid the last argument for all subroutines
824      - new default for the grid files: NO halos
825      - add useMNC and other run-time flags
826      - separate per-file-group handling of the unlimited dimension
827      - early initialization of MNC w/ flags read at the eeboot stage
828        and lookup tables set in initialize_fixed
829      - write all MNC output to a freshly-created directory
830    o thermodynamics sea-ice (thsice) is now tested with testreport.
831    o test exp. advect_cs: use the standard cs32 grid ; update output.
832    o Added functionality to grdchk:
833      pick global i,j,k position (or nearest wet) where to perform check.
834    
835    checkpoint52l_post
836    o new land formulation:
837      a) use ground enthalpy as prognostic variable to ensure exact
838         energy conservation.
839      b) account for water temperature and for latent heat of freezing
840         in all processes (rain, run-off, ground storage)
841      c) compute surface and ground temperature implicitly.
842    o aim_v23 modification for new land model:
843      a) Treat separately land / ocean / sea-ice surface fluxes
844         to allow implicit computation of land & sea-ice surface temp.
845      b) add snow precipitation.
846    checkpoint52l_pre
847    
848    o fix problem (when 1 tile is empty) in min/max monitor.
849    o fix bug in timeAve (u,vZetatave in common block)
850    o no restoring terms under ice for pkg/seaice
851    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
852    o bug fix for pkg/seaice pickups
853    o change MNC call locations and add coordinate attributes
854    o mask vorticity at the corner ; affects global_ocean.cs output
855    o fix ini_curvilinear_grid ; test CS experiments with mpi
856    o aim.5l_cs: modify sea-ice fraction input file ; update output
857    o exf: Adding simple range check routine for exf fields after read
858    
859    checkpoint52k_post
860    o removed top-level directory "diags"
861      - we migrated these functions to pkg/timeave a long time ago
862    o fixed bug introduced in pkg/monitor
863    o accuracy ctrlprec = 32 insuffient for gradient checks using
864      averaged fields (I/O via cost_averages)
865      -> use ctrl.h in active_file*.F to control I/O precision.
866    o paramter list of CALL ADTHE_MAIN_LOOP
867    o added initial do_the_model_io to ecco
868    o set all ...Freq to zero after cost_final
869      taveFreq, dumpFreq, pChkptFreq
870    o MAIN and ECCO differentiability restored
871    
872    checkpoint52j_post
873    o fix nchklev in tamc.h for global_ocean...
874    o Bringing flow and store directives up-to-date
875    o Really weird thing!
876      call do_the_model_io from the_main_loop with parameters
877      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
878      TAF places a faulty re-call of initialise_varia
879      after cost_final call which should not be there!
880    checkpoint52j_pre
881    
882    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
883      error messages
884    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
885    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
886      debug output
887    o modfied mdsio_writefield.F to handle non-global files under exch2
888    o update AIM Cubed-Sphere exp (aim.5l_cs):
889      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
890    o update AIM Equatorial Channel exp:
891      use standard aim_v23 pkg and change the SST fields to be more realistic.
892    o globalFile now works with exch2
893    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
894      mon_vort3.F to make exch2 friendly with >1 tile per cube face
895    o limit timeave output for hi-res integrations
896    
897    checkpoint52i_post
898    o removed CPP_EEOPTIONS.h from verification/*/code
899    o updated the tiling for global_ocean_pressure
900    checkpoint52i_pre
901    
902    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
903      the old pkg/aim).
904    
905    checkpoint52h_pre
906    o shortened offending lines in exch2_send_rx?.template
907    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
908    o genmake2: add build & execute test for NetCDF code
909    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
910      old grid files, moved CPP_EEMACROS.h to pkg/exch2
911    o added useSingleCPUIO flag to monitor.F and mon_out.F
912    o added temporary hack for sea-ice dynamics on the cube:
913      metric terms are ignored and it is assumed that
914      there is no sea-ice on cube faces 1, 2, 4, and 5.
915    
916    checkpoint52f_post
917    o added exch2 cube routines to pkg/exch2
918    o modified hs94.cs-32x32x5 to use it
919    o added new grid files to hs94.cs-32x32x5
920    checkpoint52f_pre
921    
922    checkpoint52e_post
923    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
924      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
925    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
926      to work with implicit vertical advection and AB ;
927    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
928    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
929     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
930    checkpoint52e_pre
931    
932    o fix bug in impldiff when Nr=1 or Nr=2.
933    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
934    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
935    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
936      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
937    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
938    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
939    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
940    
941    checkpoint52d_post
942    o re-tiled many expts to allow comparison in multi-processor mode
943      - updated output accordingly
944      - changed hs94.128x64x5 to use intial T from file rather than use the
945        random number generator
946    o add infrastructure in model routines for fizhi and gridalt packages
947    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
948    o changes to permit hi-res, cubed-sphere, configuration
949      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
950      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
951      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
952        of surface winds for the cube
953      (A verification experiment, based on global_ocean.cs32x15, but with
954       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
955       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
956       complete with example surface forcing files and matlab scripts to look
957       at the output and compare it with that of global_ocean.cs32x15.)
958    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
959       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
960       to conform to the common rule.
961    o check-in the first version of the coupler + interfaces for multi-components
962       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
963       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
964       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
965       - ocean and atmos. share the same horizontal grid (no interpolation).
966       - exchanges between component and coupler is done in forward_step
967    o new verification experiment, cpl_aim+ocn:
968       coupled ocean - AIM atmosphere on cs32 grid.
969    
970    checkpoint52d_pre
971    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
972    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
973    
974    checkpoint52c_post
975    o Fixing OPTIONS files for use of exf:
976      - ALLOW_ECCO not needed
977      - ECCO_CPPOPTIONS.h should not be included from
978        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
979        as has been the case in the past
980      - All cal/exf related options are currently set in
981        single header file. Should remain so until we
982        agree on a consistent new policy.
983    o Removed all CPP options for cal package.
984      cal has no more CPP options.
985    o modified STOREs in GAD_ADVECTION
986    o corrected key comp. for passkey
987    
988    checkpoint52b_post
989    o new version: "thsice" of thermodynamic sea-ice pkg:
990     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
991     - modify fluxes but do not change theta directly;
992     - light cleaning of bulk_force pkg (still needed with thsice).
993     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
994       + output_thsice.txt to test thsice & bulk_force pkgs.
995    o put back grid & coriolis monitor output.
996    checkpoint52b_pre
997    
998    o call "do_the_model_io" at the beginning (=> dump initial state)
999    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1000    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1001      (need info on NUMBER_OF_PTRACERS)
1002    o missing PTRACERS headers in some routines
1003    o default tamc.h in pkg/autodiff supposed to crash
1004      to ensure proper customization
1005    
1006    checkpoint52a_post
1007    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1008      - moved surfaceTendencyTice from pkg/seaice to main code
1009      - subroutine FREEZE_SURFACE now limits only surface temperature
1010        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1011        => new output.txt for global_ocean.cs32x15 & global_with_exf
1012      - keep the old version of FREEZE for backward compatibility;
1013        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1014      - corresponding modifs for TAF directives
1015    o added surface flux output variables to TIMEAVE_STATVARS
1016    o time-averaged output for pkg/ptracers
1017    o fix problem with ECCO-related divided adjoint
1018      snapshot file was missing some ad-variables,
1019      but no warning issued by TAF
1020    
1021    checkpoint52a_pre
1022    o some bug fixes for #undef REAL4_IS_SLOW
1023    
1024    checkpoint52 = ecco_c52_e35
1025    o after testing adjoints of checkpoint51u_post
1026    
1027    checkpoint51u_post
1028    o this is the post-merge tag of the ecco-branch
1029      (needs another clean checkout and re-testing)
1030    o various natl_box_adjoint configs and results
1031      but no input fields
1032    o obcs adjoint not yet merged!
1033    o adding ECCO global 1x1 and 2x2 degree configs
1034    o updated/extended some store directives for seaice
1035    o pkg/ecco now containes ecco-specific part of cost function
1036    o top level routines the_main_loop, forward_step
1037      supersede those in model/src/
1038      previous input data.cost now in data.ecco
1039      (new namelist ecco_cost_nml)
1040    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1041    
1042    checkpoint51t_post
1043    o this is the pre-merge tag of the ecco-branch
1044    
1045    checkpoint51s_post
1046    o cleanup: removed various obsolete #define-s
1047    o pkg/grdchk
1048      - renamed 'ph-grd 3' to 'grad-res'
1049      - merged from ecco-branch
1050        (remaining bug fixes for obcs gradient checks)
1051      - additional high-precision output for testreport
1052        (grep for 'precision_grdchk_result')
1053    
1054    checkpoint51r_post
1055    o cleaned up or removed CPP_OPTIONS.h files
1056    o updated results for some of the tests to reflect the new
1057      optfiles (-ieee: -O0 instead of -O3)
1058    
1059    checkpoint51q_post
1060    o cd_code:
1061      - moved cd_scheme.F -> cd_code_scheme.F
1062      - separate read_checkpoint from cd_code_ini_vars.F
1063      - separated cd_code part from write_checkpoint
1064      - updated AD_SOURCE, generated .flow
1065      - added CD_CODE_VARS.h to the_main_loop
1066      - Moving cd_code specific store dir.s to pkg/cd_code
1067    o ctrl package totally restructured
1068      - pack/unpack now optional and decoupled from
1069        xx_/adxx_ I/O
1070      - ctrl_pack/unpack cleaned
1071        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1072      - confined inclusion of AD_CONFIG.h to where necessary.
1073    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1074    
1075    checkpoint51p_post
1076    o create initial cd_code package
1077      - WARNING: the initialization of fields within packages
1078        is broken because INI_FIELDS (where READ_CHECKPOINT is
1079        called) is called *before* PACKAGES_INIT_VARIABLES.
1080        This seems to be backwards since
1081        1) its important to initially zero the entire field including
1082           the "halo" region
1083        2) zeroing needs to be done *before* reading pickup info
1084           and the pickup call might or might not happen in any
1085           particular run
1086      - this needs an overhaul for R2
1087    o cleanup verification/*/code/GMREDI_OPTIONS.h
1088    o cleanup testreport
1089    
1090    checkpoint51o_post
1091    o bringing AD-related verif's up to date with genmake2
1092      - carbon/
1093      - global_ocean.90x40x15/
1094      - hs.94.1x64x5/
1095      - (front_relax/ )
1096    o (more) consistent directory structure for AD-related verif.'s
1097    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1098    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1099    o bug fix in find_alpha.F for MDJWF:
1100      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1101        change rho -> rho-rhoConst
1102      - replace call find_rho to find_rhonum
1103    o initialisation of rFlx extended to full array (required by TAF)
1104      and shifted to thermodynamics
1105    o removed PTRACERS.h in ptracers routine
1106    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1107    o Correcting initialisations for fVerU, fVerV.
1108    o helping TAF to recognize dependency on kUp for
1109      fVerU, fVerV
1110    o Replacing delZ by delR in pkg/ctrl/
1111    checkpoint51o_pre
1112    
1113    o undid all of cp51 pending some cleanups and discussion
1114    o added the [#include "AD_CONFIG.h"] statement to all files that need
1115       it for adjoint/tl #defines
1116     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1117     o removed tools/genmake since it no longer works
1118    
1119    checkpoint51n_post
1120    o modifications to make FREEZE flux visible to pkg/kpp
1121      - moved surfaceTendencyTice from pkg/seaice to main code
1122      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1123      - subroutine FREEZE now limits only surface temperature
1124        (this means new output.txt for global_ocean.90x40x15,
1125         global_ocean.cs32x15, and global_with_exf)
1126    o added surface flux output variables to TIMEAVE_STATVARS
1127    
1128    checkpoint51n_pre
1129    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1130    o added [#include "AD_CONFIG.h"] to all files that use the following
1131      defines:
1132      - ALLOW_ADJOINT_RUN
1133      - ALLOW_TANGENTLINEAR_RUN
1134      - ALLOW_ECCO_OPTIMIZATION
1135    
1136    checkpoint51m_post
1137    o incorporating changes to get TAMC/TAF working in genmake2
1138      - added new TAMC/TAF targets to the Makefile
1139      - various cleanups related to package handling
1140      - these changes should have no impact on the forward model
1141    
1142    checkpoint51l_post
1143    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1144     - faster algorithm for cal_addtime.F
1145     - higher precision arithmetic, where needed
1146     - pkg/exf *startdate variables changed from calendar date to
1147       model integration time
1148    
1149    checkpoint51l_pre
1150    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1151    o enable to apply restoring on S & T only in a latitude band.
1152    o update output (external_forcing_surf modif. change truncation errors)
1153       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1154    
1155    checkpoint51k_post
1156    o change default to: useNHMTerms=.FALSE.
1157     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1158       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1159     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1160        exp1, ideal_2D_oce
1161     - change data file of oceanic exp (leave the results unchanged for now)
1162       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1163    o set gravitySign automatically according to the vertical coordinate used
1164      (and change sign: back to "logical" value: +1 when R increases downward)
1165    o added an include barrier to the default CPP_OPTIONS.h and
1166      removed the #include "PACKAGES_CONFIG.h" from it
1167    o fix a bug in mom_fluxform (from chk51j_post)
1168    
1169    checkpoint51j_post
1170    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1171    o adjusted some flow directives (dynamics, thermodynamics)
1172    o added cubed-sphere case to test cost function
1173    o heckpoint_lev?_directives.h now include
1174      pkg-specific directives, whenever those are enabled.
1175    o Moving pkg-specific flow directives to corresponding pkg
1176      Moving pkg-specific differentiation list to corresponding pkg
1177      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1178      ---> conventions are
1179           - pkg_ad.flow
1180           - pkg_ad_diff.list
1181           - pkg_ad_check_lev?_dir.h
1182    
1183    checkpoint51i_post
1184    o merge of the branch-genmake2
1185      - knowingly breaks the older genmake
1186      - automatic generation of all ALLOW_${PKG_NAME} defines
1187      - new testreport supersedes older testscript
1188    o large number of package inclusion and header cleanups
1189    checkpoint51i_pre
1190    
1191    o new output for adjoin of global ocean vector invariant
1192    o fix for checkpoint of thermodynamic seaice and bulk_force
1193    o Steph gchem various cleanups
1194    
1195    checkpoint 51h_pre
1196    o fixed some single quotes
1197    o modify gchem pkg to be more versatile
1198    o modifications to clean up dic pkg
1199    o add pkg/cfc
1200    
1201    checkpoint51g_post
1202    o provide links for ARPACK and ADM*TLM
1203    o start removing verification/vero/
1204    o update AD-related stuff
1205      (in particular some IF-statements in model/src/ routines)
1206    o adding to verification/global_ocean.90x40x15/ adjoint of
1207      vector invariant setup
1208    
1209    checkpoint51f_post
1210    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1211    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1212      of tracer Green's fucntions for ocean inversion project.
1213    
1214    checkpoint51f_pre
1215    o Added on-the-fly spatial interpolation capability
1216        "USE_EXF_INTERPOLATION" to pkg/exf.
1217      - This is a temporary Cartesian-grid hack until
1218        the super-duper ESMF coupler becomes available.
1219      - See verification/global_with_exf/README for usage example.
1220      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1221        flags and modified pkg/seaice accordingly.
1222    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1223        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1224        non-local transport term.
1225    
1226    checkpoint51e_post
1227    o pkg/mom_vecinv:
1228      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1229      - add time-ave diagnostic of vorticity advection.
1230    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1231    o atmospheric geopotential: - include water vapor effect;
1232                                - use p^kappa in p* scaling.
1233    o land pkg: read initial state from files.
1234    o AIM : add stratospheric drag in the upper level
1235    
1236    checkpoint51d_post
1237    o change function ILNBLNK (=> last non-blank char.) to return zero
1238      (instead of the string length) when the string. char is empty
1239    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1240    o modif's to restore TAMC compatibility
1241      - avoid "_d" constructs in PARAMETER declarations
1242      - avoid interrupting lines by comment lines
1243    o Use cluster local disks for purely local I/O
1244      vs. globally visible disks needed for ctrl stuff
1245      (merged from ecco-branch)
1246      - new active_file_loc... and mdsio_..._loc routines
1247      - affected packages: autodiff, ctrl, grdchk, mdsio
1248    
1249    checkpoint51c_post
1250    o introducing integer flag debugLevel
1251      - debLevZero: suppress all output
1252      - debLevA: standard
1253      - debLevB: equivalent to current debugMode=.TRUE.
1254    o introducing pathname variable mdsioLocalDir for mdsio
1255      that can be specified at runtime
1256      (relevant for cluster I/O to local disk)
1257    `
1258    >>>checkpoint51b_post
1259    adjoint of ptracers
1260    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1261    o extended state in checkpoint_lev?, etc.
1262    o alternative ctrl/cost with tr1 or ptracer
1263    o new comlev1_bibj_ptracers
1264    o new ptracers.flow
1265    o made ptracers_forcing same as external_forcing_s
1266    o added verification for adjoint with ptracers
1267      - adm. grdchk fail so far
1268      - tlm. grdchk OK
1269      - checked tapelev/comlev recomputations: OK
1270    <<<checkpoint51b_pre
1271    
1272    checkpoint51a_post
1273    o added code for biogeochemistry package
1274      - new pkgs: dic, gchem
1275      - new subroutine in ptracers
1276    o modify code for biogeo packages
1277      - in model/src and pkg/ptracers
1278    
1279    checkpoint51
1280    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1281      - autodiff, ctrl, exf, grdchk, seaice
1282      kept separate packages
1283      - cost, ecco, obcs
1284    o updating verification/internal_wave, verification/lab_sea
1285      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1286    
1287    checkpoint50i_post
1288    o Preparing next differentiable checkpoint and sync
1289      of MAIN vs. ecco-branch
1290      - 1st step: this one is differentiable
1291      - 2nd step: next(! not this) checkpoint will have updated packages
1292                  from ecco-branch)
1293    
1294    checkpoint50h_post
1295    o new package "land": provide surface BC for AIM.
1296    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1297    o AIM: use true log-P extrapolation for near surface temp (= as in
1298        F.Molteni paper) ; update aim.5l_cs output.
1299    o New variable in PARM03 for more flexible pickups
1300    o somewhat cleaned package initialisation sequence for
1301      ctrl/ cost/ ecco/ in packages_... routines
1302    
1303    checkpoint50g_post
1304    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1305      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1306      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1307        made the default because of faster convergence than ADI
1308    
1309    checkpoint50f_post
1310    o exf totally restructured
1311      - replaced all exf_set_ routines by one generic exf_set_gen.F
1312        and made sure it's still differentiable
1313      - split exf_getffields.F into new exf_bulkformulae.F
1314      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1315      - updated adjoint/makefile and relevant verif. accordingly
1316    
1317    checkpoint50f_pre
1318     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1319          + change Evap over land. (update aim.5l_cs output)
1320     o added missing .cvsignores and made uniform across expts
1321     o changed configuration of tidal_basin_2d expt
1322     o added pkg/debug functions for tracing code in fatal crashes
1323     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1324     o new fn in pkg/monitor to stop model if solution grows too big
1325     o removed lots of single quotes from comments
1326    
1327    checkpoint50e_post
1328    o make KPP work with PTRACERS
1329     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1330       nearly a copy of kpp_transport_s
1331     - there is no analogue to SurfaceTendencyS, so I have to use
1332       gPtr(of the surface layer) instead
1333    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1334    checkpoint50e_pre
1335    
1336    checkpoint50d_post
1337    o change kpp output from multiple-record state files to single-record state
1338      files analogous to write_state.F
1339    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1340      analogous to the cg2d-related output.
1341    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1342      so that writing to internal file fn (with length 512) fails.
1343    checkpoint50d_pre
1344    
1345    checkpoint50c_post
1346    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1347    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1348    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1349    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1350    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1351    
1352    checkpoint50c_pre
1353    Merging from release1_p13:
1354    o bug fix for pkg/seaice dynamic solver
1355    o Added SEAICE_initialHEFF to pkg/seaice
1356    
1357    checkpoint50b_post
1358    o store u*,v* in gU,V instead of in guNm1,gvNm1
1359    o in order to put the momForcing out of the Adams-Bashforth:
1360      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1361      to timestep.F
1362    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1363    o re-generate output for highly sensitive test-exp:
1364       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1365    
1366    checkpoint50b_pre
1367    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1368    o corrected CPP option mismatch in exf_Bulk... functions for case
1369      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1370    
1371    checkpoint50a_post
1372    o Bug fix for merging between c50 and KPP.
1373      ikey was passed from thermodynamics to kpp_calc via
1374      common block rather than being recomputed in kpp_calc,
1375      in contradiction with new key itdkey.
1376      New key ikppkey created, and tamc.h headers updated.
1377    
1378    checkpoint50
1379    - 2nd step of merge with ecco-branch:
1380      merge changes in ecco-branch back into main trunk
1381    - bug fix in find_alpha
1382    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1383    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1384    - merged some sliced AD support routines
1385    
1386    checkpoint49
1387    merged from ecco-branch:
1388    o exf:
1389      - Enable initialisation of forcing fields to constant
1390        (runtime) values.
1391      - in exf_getffields.F
1392        Reduce i-/j-loop to interior domain, discarding overlaps.
1393        That also fixes wrong TAF-key computations for key_1, key_2
1394        with bulf formulae.
1395      - exf_init.F modify #ifdef for exf_init_evap
1396      - exf_getffieldrec.F, ctrl_getrec.F
1397        The following INT-usages are not safe:
1398          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1399          fldcount = int(fldsecs/fldperiod) + 1
1400        and were modified.
1401    o autodiff: checkpoint_lev...
1402      - updated storing for bulk formulae (some arrays were missing)
1403      - added state for seaice package
1404      - synchronized with main branch
1405    o DIVA:
1406      Modif.s in
1407      - the_main_loop.F
1408      - the_model_main.F
1409      and added cost_final_restore.F cost_final_store.F
1410      o With these changes, it is possible to fully separate
1411        the first forward run to compute the cost function (mdthe_main_loop)
1412        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1413        into separate model executions.
1414        This enables better tuning of DIVA to given queue sizes.
1415      o Loss of cost function value in consecutive DIVA runs is
1416        fixed by storing to 'costfinal' file.
1417      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1418        beginning/end of adjoint integration is accounted for.
1419      The current changes apply to TAF-1.4.26.
1420      TAF has one remaining bug, requiring one manual change
1421      (see MITgcm manual).
1422    o cal: synchronized between MAIN and ecco-branch
1423    
1424    checkpoint48i_post
1425    o Changes to restore differentiability of code w.r.t. previous tag
1426      (mostly adding new routines to make list and replacing
1427      pressure by totPhiHyd).
1428    o Updated and merged grdchk package
1429      - has both ADM and TLM checks
1430      - works for single- and multi-proc.
1431      - output cleaned
1432      - worked successfully for parallel DIVA
1433    o genmake:
1434      - Adding -platform=SP4
1435      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1436    o Modif. for DIVA:
1437      ctrl_unpack should not be called in intermediate DIVA interval.
1438      (similar thing would apply for active files such as
1439      tbar, sbar, psbar, which should not be reinitialised;
1440      only relevant for ecco-branch)
1441    
1442    checkpoint48h_post
1443    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1444    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1445    o Added SEAICE_initialHEFF to pkg/seaice
1446    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1447    
1448    checkpoint48g_post
1449    --- EOS:
1450    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1451      store total Potential in totPhyHyd for diagnostics & EOS.
1452    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1453    --- Pressure/geopotential gradient:
1454    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1455    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1456      ( changes results of global_ocean_pressure )
1457    o NLFS + z-coord.: add eta*Rho' contribution.
1458    o accurate phiHyd when using interface-W at the middle between 2 centers
1459     ( changes results of ideal_2D_oce )
1460    o includes r* 2nd term in potential gradient.
1461    
1462    checkpoint48f_post
1463    Merging from release1_p12:
1464    o Modifications for using pkg/exf with pkg/seaice
1465      - improved description of the various forcing configurations
1466      - added basic radiation bulk formulae to pkg/exf
1467      - units/sign fix for evap computation in exf_getffields.F
1468      - updated verification/global_with_exf/results/output.txt
1469    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1470      (SBO) core products, including oceanic mass, center-of-mass,
1471      angular, and bottom pressure (see pkg/sbo/README.sbo).
1472    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1473      to avoid negative values in shallow regions.
1474      - updated verification/natl_box/results/output.txt
1475      - updated verification/lab_sea/results/output.txt
1476    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1477    o Added useSingleCpuIO option (see PARAMS.h).
1478    o Updated useSingleCpuIO option in mdsio_writefield.F to
1479      work with multi-field files, e.g., for single-file pickup.
1480    o pkg/seaice:
1481      - bug fix in growth.F: QNET for no shortwave case
1482      - added HeffFile for specifying initial sea-ice thickness
1483      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1484    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1485      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1486    o pkg/seaice:
1487      - adjoint-friendly modifications
1488      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1489    
1490    checkpoint48e_post
1491    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1492    o dynamics: change definition of computational domain & adapt mom_fluxform
1493      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1494    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1495        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1496        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1497        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1498        inverted_barometer solid-body.cs-32x32x1
1499      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1500    
1501    checkpoint48d_post
1502    o in preparation for r*:
1503     a) use pre-computed gradient of hydrostatic potential:
1504        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1505     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1506        => affects results of glob_oce_pressure (different truncation error)  
1507      update output.txt of ideal_2D_oce & global_ocean_pressure
1508    
1509    checkpoint48d_pre
1510    o in preparation for r*:
1511      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1512      pass the 2 comp. of the grad. as arguments to momentum S/R.
1513      but for the moment, only used if it does not change the results.
1514    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1515    
1516    checkpoint48c_post
1517    Modifications in treatment of initial flux forcing controls
1518    to avoid extra storing of flux fields.
1519    
1520    checkpoint48c_pre
1521    o Added tidal_basin_2d experiment (currently 1D!)
1522    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1523    
1524    checkpoint48b_post
1525    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1526     (modification to pressure gradient not yet implemented)
1527    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1528      (for U & V) that are used for vertical advection of momentum.
1529    
1530  checkpoint48a_post  checkpoint48a_post
1531  o In preparation for r*, use temp. array to compute vertical transport  o In preparation for r*, use temp. array to compute vertical transport
1532     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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