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revision 1.122 by jmc, Thu Jan 23 15:35:48 2003 UTC revision 1.527 by jmc, Sat Jul 30 23:33:23 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 Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
8      (was already the case for dissipation with mom_vecinv,
9       and also the case for grad.PhiHyd when staggered-timeStep)
10      This will allow to put dissipation out-off the AB time-stepping.
11     Unfortunately, affects truncation error. Update output of exp. that "fails"
12      (cg2d matching number) and leave the others for later: front_relax(10),
13      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
14      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
15    
16    checkpoint57o_post
17    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
18      (2) its ready to be documented during the 20050801 DocFest
19    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
20      for ideal_2D_oce and lab_sea on linux_ia32_g77
21    o set to #undef CTRL_SET_OLD_MAXCVARS_30
22      in global1x1_tot/code_seaice_adj to access indices 32, 33
23      (worth another tag)
24    
25    checkpoint57n_post
26    o adding precip control xx_precip 32
27    o adding swflux control xx_swflux 33
28    o Replacing 10 forcing penalty cost routines by 1 generic.
29    o Implementing partitioning in time-mean and variable adjustment
30      for atmos. state.
31    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
32    o in natl_box_adjoint:
33      * updated exp 1 to 10
34        (but does not have time-mean vs. variable split results yet)
35    o updated global1x1/*_seaice_adj/
36      to incorporate latest changes
37    o enable useSingleCpuIO for mdsio vector routines
38      (applies in particular to tapelev I/O)
39    o removed inefficient K-loop in all active_file*control*.F
40    
41    checkpoint57m_post
42    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
43      and advect_cs (use EXCH-2 and standard cs-32 grid files).
44    o pkg/exch2: filling of face-corner halo regions is optional
45      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
46    
47    checkpoint57l_post
48     tag before updating tutorials (pre-release-2)
49    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
50       for output and interpolation of input fields onto model grid)
51    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
52       Affects results of exp. rotating_tank ; update output.txt.
53    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
54          and taking the square quantity and/or using a fraction-weight field.
55    o fix aim_diagnostics_init.F mate numbers.
56    o add mnc output capability to diagnostics/diagstat and update
57      our cvsignore files for the ACSII output generated
58    
59    checkpoint57k_post
60    o lab_sea now uses diagnostics package and provides a suite of
61      new EXF diagnostics output.
62    
63    checkpoint57j_post
64    o exf
65      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
66        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
67        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
68      * extended diagnostics output
69        - now includes all EXF variables
70        - hs, hl moved to common block
71        - separate S/R for diagnostics, called after ctrl vector is added
72        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
73        - EXFqnet contains true Qnet (i.e. includes qsw)
74      * updated verif. lab_sea, global_with_exf
75      * Rearranging hflux (exf_mapfields -> exf_getforcing)
76        to ensure that diagnostics sees a true EXFqnet
77    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
78    o diagnostics pkg: change pointers so that 1 diagnostic can be used
79      several times with different frequencies.
80    o mnc-ify the thsice package as requested by Daniel Enderton
81      - the monitor--MNC output needs work
82      - many attributes need to be added (most are currently blank)
83    o mnc-ify theaim_v23 package as requested by Daniel Enderton
84      - many attributes need to be added (most are currently blank)
85    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
86    o add Sadourny like discretization to the 4th.O vorticity advection scheme
87    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
88      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
89         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
90    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
91     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
92    
93    checkpoint57i_post
94    o Diagnostics package was changed: diagnostic allocation is now deactivated
95      by setting an empty file name in the namelist (used to be by setting 0 frequency)
96    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
97      add 1rst Order upwind vertical Shear.
98    o add a quick fix for A/B checkpointing in OFFLINE mode
99    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
100      end-run around the C/Fortran linking horror in eesup/src/timers.F
101    o added pkg/runclock: allows user to terminate run based on wall clock
102    o added non-hydrostatic scaling parameter: nh_am2
103    o pkg/my82: futile attempt to make results compiler-independent by adding
104      some "_d 0", etc. no effect.
105    o for mnc output, fill the 'T' coordinate var with myTime and create a
106      separate 'iter' variable for iteration count
107    o pkg/diagnostics:
108      add new capability: output of Global/Regional & per-level statistics ;
109      tested against monitor output (including land & thSIce) on various exp.
110    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
111    
112    checkpoint57h_done
113      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
114      data.diagnostics, data.gchem, data.ptracers) is done.
115    
116    o pkg/diagnostics: prepare for Global/Regional statistics.
117      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
118    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
119      and rename it: DIFFERENT_MULTIPLE
120    
121    checkpoint57h_post
122    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
123    o pkg/diagnostics: change output frequency, now in seconds (instead
124      of Nb of iterations). This requires to change data.diagnostics.
125    checkpoint57h_pre
126    
127    o in mnc, let the user create the output dir if both mnc_outdir_date
128      and mnc_outdir_num are false
129    o add fflags() to pkg/diagnostics which allows one to specify, on a
130      per-file basis, the file precision [default behavior is unchanged]
131    o added diagnostics to pkg/kpp, including computation of mixed layer
132      depth based on a temperature/density criterion
133    o updated verification/natl_box to test the new pkg/kpp diagnostics
134    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
135    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
136    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
137      not mnc -- this mistake was found by JMC and is now corrected
138    
139    checkpoint57g_post
140    o add Adams-Bashforth 3rd Order time stepping:
141      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
142      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
143    checkpoint57g_pre
144    
145    o make lambda[Theta,Salt]ClimRelax spatially varying
146      (default remains spatially uniform constant based on tau)
147    o added new control variables
148      * init. uVel, vVel, etanN
149      * lambda[Theta,Salt]ClimRelax
150    o separate masks used for ctrl_pack/unpack 'from write_grid' output
151      (suggested by G. Forget)
152    
153    checkpoint57f_post
154    o add parameter "baseTime" = model base time = time at iteration zero
155      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
156      account for baseTime shift
157    o move Coriolis arrays from PARAMS.h to GRID.h
158    checkpoint57f_pre
159    
160    o mnc-ifying the seaice package
161    o introduced an alternative length scale calculation for use in the limiting
162      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
163    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
164    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
165      as well as grad(vort3).  Made it compatible with both approximate form
166      for the cubed sphere and full form of these gradients.  Added flag
167      useFullLeith to select between approximate and full form.  
168    o add "d0" in getcon.F to reduce differences between compilers/platforms
169      update output.txt of exp. fizhi-gridalt-hs
170    o change port_rand funtion to allow to set the seed.
171    o fix obscure MNC bug involving conversion between reals and integers
172      - it caused no problems with certain (eg. gcc, ifc) compilers but the
173        new version is now more standards-compliant
174    o adjoint-related modifications
175      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
176      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
177      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
178    
179    checkpoint57e_post
180    o Adding eddy stress controls a la Ferreira et al.
181    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
182    
183    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
184      update output.txt of exp. fizhi-gridalt-hs
185    o add more "Z" dimensions and associated coordinate vars to MNC
186    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
187    o parameter calendarDumps: when set, approximate months (30-31 days) and years
188      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
189      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
190      months and years.  Requires pkg/cal.
191    o diagnostics: add pickup functionality
192      - off by default for backwards compatibility
193      - current version only uses MDSIO -- MNC will be added
194    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
195    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
196    
197    checkpoint57d_post
198    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
199    o modify verification/ideal_2D_oce so that it tests the creation of mnc
200      output from the diagnostics package
201    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
202    o make genmake2 more portable by using ".$FS" instead of ".f" for more
203      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
204    o add coordinate variables to the MNC output from the diagnostics package
205    o change MNC-flags default value: true when useMNC=TRUE
206    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
207      the ability (off by default) to read the grid information using MNC
208    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
209    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
210    o do snap-shot diagnostics at the middle of the time-interval (instead of
211      at the end).
212    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
213      new test for AIM with thSIce + slab-ocean
214    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
215    o move state variable diagnostics to the beginning of the time step ;
216      (note: still needs some work specially for snap-shot diagnostics)
217      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
218    
219    checkpoint57c_post
220    o Change testing option (-ieee) to get closer agreement between g77 & ifort
221    o generate new output.txt files on faulks with g77 & the new -ieee option
222    checkpoint57c_pre
223    
224    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
225      update output.txt of exp. global_ocean.90x40x15
226    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
227      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
228    o add saltFlux(+File) forcing capability with periodicExternalForcing
229    o allow to use pkg diagnostics for GM-Redi & ThSIce output
230    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
231    o improvements for the MNC output from DIAGNOSTICS:
232      - correct handling of the unlimitied dimension
233      - all dims now have associated coordinate variables
234      - variables located at U, V, and Corner ("Z") points are now written
235        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
236        *all* data points are output
237    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
238    o added pkg/seaice/seaice_monitor.F
239    o mdsio_readfield.F can now read files visible only to master MPI process.
240    o pkg/seaice: some test code for ice-modified ocean stress
241    o exf_getffields interpolation defaults to bilinear for all scalar forcing
242      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
243      spurious negative numbers for precipitation and humidity.  Will cause
244      some small numerical differences for integrations using pkg/exf/exf_interp.F.
245    o pkg/ctrl/
246      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
247        May be enabled via doPackDiag
248      *  introduce z-scaling of
249         + gradient (doZscalePack) and
250         + control (doZscaleUnpack)
251    o pkg/mdsio/
252      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
253      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
254    
255    checkpoint57b_post
256    o simplify options in diagnostics_fill arguments (remove weird combinations)
257    o fix MNC coordinate variables so that they now contain per-face index
258      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
259      general, EXCH2 grids are only aligned to a "local" coordinate system
260    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
261    o Implement instantaneous output within pkg diagnostics:
262      setting a negative frequency in data.diagnostics produces
263     "snap-shot" output (as opposed to time-average if freq > 0)
264    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
265      NOTE: change ptracer diagnostics name: use 2 characters to work with
266            more than 9 tracers. Add also diagnostics of advect & diffus flux.
267    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
268      becomes the coordinate variable for the 'T' dimension
269    o add CF-style coordinate variables to MNC
270      - just a first cut:  numbers are meaningless on the cubesphere and
271        missing along the T axis but otherwise it works!
272    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
273    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
274    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
275      this is based directly on what the model compute, so that the content of
276      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
277    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
278    o clean up build options files for SunOS, in particular
279      - remove -traditional from xmakedepend
280      - change -xarch=v9 to -xarch=native for f77
281      - restore use of make (not gmake)
282      - add CC=gcc if using g77
283    o changes per discussion of AM, JMC, & EH3 today:
284      - move redundant "grid" variables out of "state" -- in preparation of
285        creating proper CF-style coordinate variables and in recognition
286        that any/all grid variables can be easily copied (eg. w/NCO) from
287        the grid files into any of the other NetCDF files
288      - *always* output grid variables with MDSIO (this will eventually be
289        changed)
290      - output MNC grid file if useMNC is true
291    o every instance of _END_MASTER() has been found and replaced with
292      _END_MASTER( myThid ) in order to satisfy certain picky Sun
293      preprocessors
294    o re-arrange diagnostics pkg initialisation:
295     - allow each package to extend the available diagnostics list
296     - add some checking and fix small problems (multi-threaded, ...)
297     - new S/R diagnostics_fill (replace fill_diagnostics):
298       look through the short list of active diag. (instead of the long list)
299       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
300    
301    checkpoint57a_post
302    o this set of changes restores TAMC compatibility
303      tested for global_ocean.90x40x15 adjoint on trough
304      (what a pain)
305    
306    checkpoint57a_pre
307    o some modifs in tools/build_options for sunos
308    o call ctrl_pack for ctrl at end for optimcycle=0
309    
310    checkpoint57
311    o add horizontal bi-harmonic viscosity for vertical velocity
312      - new parameter viscA4W (defaults to viscA4)
313      - affects only non-hydrostatic code
314      - to be done: no-slip lateral boundary conditions
315    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
316    o implement Implicit Vertical advection for pTracers
317    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
318      (implemented also for implicit vertical diffusion & advection)
319    o OBCS: extend application of tracer open boundary conditions
320      to a strip beyond the boundary of width Olx/Oly
321    o add call monitor to TAF set of required calls (flow directives)
322      and include in natl_box_adjoint
323    o untangle a few ifdefs related to cost, ctrl, autodiff
324      untangel a few ALLOW_ECCO_OPTIMIZATION
325    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
326      (theta2, salt2 in ecco_cost_weights)
327    
328    checkpoint56c_post
329    o OBCS as control variables
330      - update ctrl_ad_diff.list, obcs_ad_diff.list
331      - remove balance of obcs controls from default
332      - fix index bug nobcs in ctrl_init
333      - fix dummy fields filen in ctrl_pack
334      - add dummy weights for obcs
335    o lsopt: comment out fort.94 output
336    o optim:
337      - remove unnecessary header files
338      - adjusted namelists
339      - add xerbla.F to Makefile
340    o exf:
341      - multiple modifications of exf_check_range
342      - unit change in exf_init_runoff from [m/year] to [m/s]
343    o mdsio:
344      - i/o-vector change debugLevel from debLevA to debLevB
345    
346    checkpoint56b_post
347    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
348      is called from DO_THE_MODEL_IO
349      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
350      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
351      - clean up PTRACERS_WRITE_TIMEAVE a little
352    o add another verification experiment that tests both the cfc-pkg and
353      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
354      reactive tendencies treated inline with regular timestepping
355    o testreport previously did a lousy job of comparing small numbers, so
356      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
357      implemented in the little c-progam tmp_cmpnum.c which is embedded in
358      testreport.
359    o ptracers_monitor: bug fix for MPI
360    
361    checkpoint56a_post
362    o GCHEM: finish reorganizating the package
363      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
364        (introduces another 3D-array for each passive tracer, but only if
365        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
366        gchemTendency is not needed because the timestep is done separately)
367      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
368      - GCHEM is now---more or less cleanly---separate from PTRACERS
369      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
370        so clear to me how that should be done in a general way.
371    o CFC: improve formatting of output in CFC_ATMOS
372    o PTRACERS:
373      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
374        that ALL experiments with ptracers enable can be checked. This makes
375        GCHEM_MONITOR obsolete.
376      - include a runtime parameter PTRACERS_monitorFreq that defaults to
377        monitorFreq
378      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
379    o add PTRACERS (PTR0[1-5]) to testreport output
380    o exf_check_range:
381      * default changed to .TRUE.
382      * will check values for niter0 if debLevA, every timestep if debLevB
383      * STOP in exf_check_range if 'out of range'
384      * range chosen generous to allow for potential extema
385      TBD: a version with stricter range
386           permitted range would be runtime parameters
387    o GMredi:
388      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
389      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
390      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
391    o GCHEM:
392      - move call to GCHEM_FORCING_SEP, so that it is now called before
393        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
394      - introduced a useGCHEM runtime flag and applied it everywhere.
395      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
396        this flag is now only visible within GCHEM-pkg routines.
397      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
398        be replaced by a 3D array that is computed before thermodynamics; for
399        this, the tracer ID iTracer had to be included into the parameter list
400        of ptracers_forcing
401      - set up forward_step to call gchem_forcing, that will replace
402        gchem_forcing_int in ptracers_forcing
403      - cleaning up
404    o small cleaning of exch2: remove files that are also in eesupp/src
405    
406    checkpoint56
407    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
408    o mnc: cleanup "full" files--fixes out-of-memory problem
409    o ECCO-GODAE
410      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
411      * fully merged and updated from SIO code
412        windstress sign change affects
413        - exf_inscal_[u/v]stress
414        - sign of xx_tau[u/v] adjustments
415        - signs in cost_scat
416      * ctrl_get_gen: avoid update of tau[u/v] for first few days
417      * natl_box_adjoint updated and compressed
418      * 2-level checkpoint switch added
419        (tested in EXP. 1 of natl_box_adjoint)
420      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
421    o SVD
422      * first complete, non-hacked version for SVD calculations
423      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
424        performed via direct access files admtlm_vector.it????
425        (via ctrl_[un]pack)
426      * optimcycle is used for ARPACK iteration counter
427        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
428      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
429        and add linear transforms where necessary
430      * controls are initial/final SST, SSS (can be extended; need to check
431        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
432    o mdsio: filename info to both stderr, stdout
433    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
434      from sign change
435    
436    checkpoint55j_post
437    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
438      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
439    o add consistent build directories and .cvsignore files to verification
440    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
441    o make all subroutines 30 or less characters in length for certain older
442      compilers to work (a thorough search only turns up two routines in
443      pkg/ptracers)
444    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
445      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
446    
447    checkpoint55i_post
448    o change arrays for total vertical diffusivity (2.D if explicit,
449      3.D if implicit) ; each ptracer uses its own background value.
450    o added mnc/NetCDF output capability to ocn_compon_interf
451      - added bits to verification/cpl_aim+ocn so that it can run on
452        ITRDA and other clusters without the mpirun "-wd" option
453    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
454      configuration
455    o give MNC the ability to create additional files rather than
456      exceeding a specified file size limit "MNC_MAX_FILESIZE"
457      - the default is just less than 2GB which is a practical limit
458        on many systems
459    o Compute the non-local term using either KPP vertical diffusivity (=default)
460       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
461    
462    checkpoint55h_post
463    o add verification test "vermix"
464    o remove all the *_ioinc flags and replace with the single global
465      outputTypesInclusive flag
466    o allow to set a vertical profile of vertical diffusivity for T & S
467    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
468    o useMNC moved from data.mnc to data.pkg
469    
470    checkpoint55g_post
471    o Renaming carbon AD experiments to comply with testreport conventions
472    o Updating adjoint of Held-Suarez hs94.1x64x5
473    o Fixing directives for non-ECCO forward_step, after ECCO directives
474      have been fixed to avoid recomp. of do_oceanic_phys
475      Works well for global_ocean.90x40x15,
476      but recomp. issue remains for carbon
477    o Updating adjoint output for natl_box_adjoint after
478      pkg/ecco has been modified (see taga c55d_post)
479    
480    checkpoint55f_post
481    o rename to timeave_init_fixed
482    
483    checkpoint55e_post
484    o some delicate re-shuffle of store directives to avoid one
485      extra call of do_oceanic_physics
486      affects ecco_the_main_loop.F, do_oceanic_physics.F
487      checkpoint_lev1_directives.h
488    o NB: this may break global_ocean adjoint temporarily,
489      but it is clear how to fix it. Will do later, need this now.
490    
491    checkpoint55d_post
492    o ECCO specific cost function terms (up-to-date with 1x1 runs)
493    o ecco_cost_weights is modified to 1x1 runs
494    o modifs to allow observations to be read in as
495      single file or yearly files
496    o enable to read exf forcing fields as either
497      single file or yearly files (flag useExfYearlyFields)
498    checkpoint55d_pre
499    
500    o switch between 2-level and 3-level checkpointing
501    o add ability of MNC to write local and "partial" (eg. 2D slices where
502      the full 3D field is never actually stored) arrays to NetCDF files
503      with the correct (that is, the complete multi-dimensional) set of
504      array indicies
505      - used in mom_vecinv() to write the diagFreq output
506      - tested (demonstrated) in verification/aim.5l_cs
507    o further mnc-ification
508      - add verification/lab_sea to the list with mnc setups
509      - fix undefined mnc v-names in cd_code
510      - add kpp to mnc output (both snapshot and timeave)
511    o non-hydrostatic code
512      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
513        in calc_gw.F
514      - defaults to viscAh
515      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
516        friction or Leith) in non-hydrostatic mode, as long as there is
517        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
518    o pkg/cost
519      extend simple cost functions to treat time mean quantities
520      (T,U,V) via cost_accumulate_state from cost_tile
521    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
522        be 2 times larger than the minimum size the advection scheme requires.
523        now get a perfect conservation of salt in advect_cs test-exp (updated)
524    o GGL90 (Gaspar's TKE mixed layer)
525      - add horizontal diffusion of TKE, requires exchanges in
526        do_fields_blocking_exchanges, horizontal diffusivity is zero by
527        default. In OPA there is no horizontal diffusion of TKE but the
528        mixing coefficients are computed from a horizontal average of TKE of
529        6 points or so. I think that diffusion has a little more physical
530        justification.
531      - clean up ggl90_calc in the hope of reducing memory usage (this hope
532        was in vain)
533      - mask tke-variable in ggl90_init
534    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
535    o fix biharmonic diffusion on CS-grid.
536    o more obcs stuff
537      - added obcs_external_fields_load as an alternative to the EXF-pkg option
538        for reading boundary values. This routine is called from
539        obcs_prescribe_read
540      - updated obcs_check
541      - changed sponge layer relaxation parameter units for days to seconds
542      - turned off sponge layer by default
543      - changed argument list of OBCS_CALC to myTime+deltaTclock
544      - fixed about 35 bugs in obcs_external_fields_load
545    
546    checkpoint55c_post
547    o obcs stuff
548      - new runtime flags useOBCSprescribe, useOBCSbalance
549      - re-arranged obcs_calc
550      - moved exf_getobcs to obcs_prescibe_read
551        obcs_prescibe_read is called after ORLANSKI stuff
552        and independent of it (executable can contain all).
553      - updated obcs_check
554      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
555        These may be necessary only if tangential velocities are
556        prescribed at OB, not sure, needs testing.
557    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
558      which simplifies the calls and passes the ifc check-bounds test
559    
560    checkpoint55b_post
561    o add a 2D scalar, Z location, exchange_2 routine.
562    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
563      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
564      affects advect_cs results (for the wrong reason): update output.txt
565    o use a more standard discretization for biharmonic viscosity ;
566     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
567      affects results of dome set-up: update output.txt
568    o fix gad_advection.F (CubedSphere part), back to version 1.23
569    o fix bug in mom_vi_del2uv.F (CubedSphere part).
570    
571    checkpoint55a_post
572    o merged code to
573      * prescribe/read time-dependent open boundaries
574        (works in conjunction with exf, cal)
575      * sponge layer code for open boundaries
576      * each boundary N/S/E/W now has its own CPP option
577        (healthy for the adjoint)
578    
579    checkpoint55
580    o up-to-date adjoint of previous breaks
581      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
582      - global_ocean_ebm: adjoint still needs fix (TLM ok)
583      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
584      - carbon: * remove tr1-related adjoint verification
585                * add ptracer as control variable
586    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
587      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
588    
589    checkpoint54f_post
590    o in verification/carbin/ remove experiment related to
591      ALLOW_PASSIVE_TRACER (array tr1 etc)
592      code_ad/ input_ad/ results_ad
593    
594    o add two new packages
595      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
596        + subject to optimization (memory)
597      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
598        + subject to reordering (many GOTOs in the original code)
599        + so far opps is called for every (i,j) point, and then operates in
600          the vertical; one may want to reorder the scheme in order operate in
601          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
602          fields)
603    o overhaul of IO so that we now have flags for MDSIO and/or MNC
604      - all verification tests compile and run with linux_ia32_g77
605      - defaults are compatible with current input files--nothing
606        should change if you were not previously using MNC
607      - MNC output has been added in numerous places (eg. timeave)
608        but there are still a few writes not yet do-able with MNC
609        (this is in progress)
610      - flags now allow for either/or/both use of MDSIO and MNC and
611        documentation will soon follow
612      - numerous small formatting cleanups for ProTeX
613    o add version info (via BUILD_INFO.h) to MNC and stdout
614    
615    checkpoint54e_post
616    o add two new packages
617      - pp81 (Packanowski and Philander, 1981), Richardson number and
618        stratification dependent mixing
619      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
620      - these scheme operate in a similar manner as KPP (without ghat, of
621        course), however there is only one diffusivity that is used for both
622        temperature and salinity (and passive tracers)ç
623    o add offline package
624    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
625      provided by Stephanie Dutkiewicz
626    o genmake2: add ability to search for C compilers and cleanup test output
627      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
628    
629    checkpoint54d_post
630    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
631    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
632      leading to additional shift by 5 days each year of integration
633       (i.e. leading to considerable offset over the years)
634    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
635    o start with no AB and no initial filtering (staggerTimeStep):
636      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
637    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
638      (external loading & cpl import/export stay in forward_step.F)
639    o update coupling interface to work with new staggerTimeStep
640    o change MDSIO ptracers_pickup.
641    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
642    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
643    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
644    
645    checkpoint54c_post
646    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
647      this affects (truncation error) output.txt of test-exp:
648       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
649    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
650    o change Qnet to always be the net heat flux, (+upward).
651      affects (truncation error) output of natl_box exp.: updated
652    o define the max number of passive tracers in PTRACERS_SIZE.h
653    o start to test mnc routinely in exp0
654    o add sea-ice loading (sIceLoad) as a new forcing field.
655    
656    checkpoint54b_post
657    o add testreport "-j JOBS" option for parallel builds (tested and pretty
658       impressive on Altix and Opteron systems)
659    o diagnostics can now write NetCDF files through the mnc package
660    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
661    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
662    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
663      affects (truncation error) output of lab_sea & natl_box exp.: updated
664    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
665    
666    checkpoint54a_post
667    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
668    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
669    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
670    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
671      + internal_wave (shift in writing cg2d_ini_res)
672    checkpoint54a_pre
673    
674    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
675      - modified verification/lab_sea and natl_box_adjoint accordingly
676    
677    checkpoint54
678    checkpoint53g_post
679    o prepare splitting of thermodynamics: store convect.counter in common block
680    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
681      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
682    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
683    o new parameter "nShapS": allow to treat differently S from T (nShapT)
684    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
685    o restore adjointability
686    
687    checkpoint53f_post
688    o modifications that affect AIM experiment results (update output.txt):
689      - no advection of S at top interface Nr (pkg/generic_advdiff)
690      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
691    o AIM pkg:
692      - include stability function into surf.Flux derivative relative to Tsurf
693      - calculate clear-sky radiation & surface temp. change (for diagnostics)
694    
695    checkpoint53e_post
696    o merged cylindrical coord configuration
697    o added rotating_tank experiment
698    checkpoint53e_pre
699    
700    checkpoint53d_post
701    o faulks upgraded: re-generate output.txt that have changed:
702       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
703    o Added Bryan and Lewis, 1979, vertical diffusivity profile
704    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
705    o added Sadourny discretization of Coriolis
706      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
707      - re-enabled use of omega3 (useAbsVorticity)
708    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
709      vector-invariant equations
710      - note: does *NOT* yet use same variable visc. for no-slip BC's.
711    o recoded the lateral boundary conditions for non-hydrostatic w, this time
712      hopefully without new bugs
713      - still to do: biharmonic friction for non-hydrostatic w
714    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
715    o regenerated output for global_ocean_ebm (using -ieee)
716    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
717      of mom_common/
718      - simple re-arrangement of instructions within computing loop
719    checkpoint53d_pre
720    
721    checkpoint53c_post
722    o new version of coupler for AIM+thSIce and Ocean models
723     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
724     - land: change Evaporation of snow
725     - aim with thSIce: fix bug in snow-precip.
726    o changes to calc_gw.F
727     - bug fix for w^2 term near the bottom boundary
728     - (hopefully) improve the lateral slip boundary condtions for use with
729        partial/looped cells
730      - because the bug fix changes two verification experiments anyway (exp5
731        and plume on slope), change the lateral boundary condition from half slip
732        to the value of no_slip_sides
733    o ebm package wasnt quite up to the parallel task. Fixed that.
734    o Adjoint of EBM package + verification
735      * TLM OK
736      * ADM not sufficient accuracy yet (needs further testing)
737    
738    checkpoint53b_post
739    o Commiting new energy balance model to repository
740      * package is pkg/ebm
741      * verif. is verification/global_ocean_ebm
742      * references are in ebm_driver.F
743    C      * X. Wang, P. Stone and J. Marotzke, 1999:
744    C        Global thermohaline circulation. Part I:
745    C        Sensitivity to atmospheric moisture transport.
746    C        J. Climate 12(1), 71-82
747    C      * X. Wang, P. Stone and J. Marotzke, 1999:
748    C        Global thermohaline circulation. Part II:
749    C        Sensitivity with interactive transport.
750    C        J. Climate 12(1), 83-91
751    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
752    C        Destabilization of the thermohaline circulation
753    C        by atmospheric eddy transports.
754    C        J. Climate 7(12), 1870-1882
755    o Will need long integration testing.
756    checkpoint53b_pre
757    
758    o created pkg/mom_common in preparation for variable viscosity code
759    o renamed and split ini_mnc_io
760    o pkg/land: only liquid water can diffuse or run-off
761    o AIM using land: soil wetness availability account for snow
762    o added printMapIncludesZeros to EEPARMS namelist
763    
764    checkpoint53a_post
765    o restore TAMC compatiility for exf_constants.h
766      (no usage of _d in .h)
767    o Additional storing in KPP in an attempt to fix
768      TAMC problem with adjoint of KPP code.
769      (no success...)
770      Identical code works fine with TAF.
771    o Fixed verification/natl_box_adjoint experiments.
772      Initial conditions for Experiments 4 and 5 are now
773      set to "SEAICE_initialHEFF=0", which is more reasonable,
774      and hence gives results closer to that of Experiment 2.
775      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
776    
777    checkpoint53
778    o stable checkpoint with up to date adjoint
779      TLM tests only run for 1st grdchk at the moment. Its unclear if
780      this is a code problem or a problem with resetting code for g_
781      variables that is being autogenerated wrong.
782      Otherwise:
783       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
784       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
785         are both still in chaos following their security messes.
786    
787    checkpoint52n_post
788    o various build (mostly genmake2) changes including:
789      - ability to build/run more easily within Cygwin and MacOS X
790      - more complicated Makefiles with a stronger dependence on Gnu Make
791    o pkg/seaice modifications
792      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
793        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
794        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
795      - changed proxy for geostrophic velocity and updated
796        verification/lab_sea/results/* accordingly
797      - removed ADI dynamic solver from pkg/seaice
798      - replaced all occurrences of 1/CSTICE or 1/CSUICE
799        they caused a segmentation fault under certain circumstances
800      - removed unused field WATR
801    o bug fix in exf-package:
802      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
803         now reflect that.
804    o small fixes in the cal-package:
805      - set reference date to first of January for the 'model'-calendar
806      - failing of cal_CheckDate in cal_FullDate now actually results in a
807        warning
808    o small modifications in exf-package to increase flexibility:
809      - change climtempfreeze from a constant to a runtime parameter that
810        is specified in data.exf_clim (default = -1.9)
811      - introduce runtime parameter windstressmax (default = 2.0) that is
812        specified in data.exf
813    o fix in pkg/thsice:
814      - update Evap (Tsf changes) to be consistent with Latent heat flux
815      - maintain snow precipitation unchanged (even if Tsf >=0).
816     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
817    
818    checkpoint52m_post
819    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
820      this does not change any of the results, because myIter=0 in swfrac always
821      lead to jwtype=2 (the default anyway), but the call makes little sense
822      as a default
823    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
824    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
825      atmospheric model (AIM) to use it ; add a "slab ocean" component.
826    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
827    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
828    o extending useSingleCpuIO option to work with new exch2 I/O format
829      - old-style, missing-tile I/O is still accessible by defining CPP
830        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
831    o monitor package can write to NetCDF files and/or STDOUT
832    o fix re-definition bug in MNC_GRID_INIT_ALL()
833    o doc/api_reference added
834      - a framework for building an API Reference Manual using all
835        the "protex" comments embedded in the code
836      - see pkg/generic_advdiff, pkg/mnc for examples
837    o MNC:
838      - make myThid the last argument for all subroutines
839      - new default for the grid files: NO halos
840      - add useMNC and other run-time flags
841      - separate per-file-group handling of the unlimited dimension
842      - early initialization of MNC w/ flags read at the eeboot stage
843        and lookup tables set in initialize_fixed
844      - write all MNC output to a freshly-created directory
845    o thermodynamics sea-ice (thsice) is now tested with testreport.
846    o test exp. advect_cs: use the standard cs32 grid ; update output.
847    o Added functionality to grdchk:
848      pick global i,j,k position (or nearest wet) where to perform check.
849    
850    checkpoint52l_post
851    o new land formulation:
852      a) use ground enthalpy as prognostic variable to ensure exact
853         energy conservation.
854      b) account for water temperature and for latent heat of freezing
855         in all processes (rain, run-off, ground storage)
856      c) compute surface and ground temperature implicitly.
857    o aim_v23 modification for new land model:
858      a) Treat separately land / ocean / sea-ice surface fluxes
859         to allow implicit computation of land & sea-ice surface temp.
860      b) add snow precipitation.
861    checkpoint52l_pre
862    
863    o fix problem (when 1 tile is empty) in min/max monitor.
864    o fix bug in timeAve (u,vZetatave in common block)
865    o no restoring terms under ice for pkg/seaice
866    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
867    o bug fix for pkg/seaice pickups
868    o change MNC call locations and add coordinate attributes
869    o mask vorticity at the corner ; affects global_ocean.cs output
870    o fix ini_curvilinear_grid ; test CS experiments with mpi
871    o aim.5l_cs: modify sea-ice fraction input file ; update output
872    o exf: Adding simple range check routine for exf fields after read
873    
874    checkpoint52k_post
875    o removed top-level directory "diags"
876      - we migrated these functions to pkg/timeave a long time ago
877    o fixed bug introduced in pkg/monitor
878    o accuracy ctrlprec = 32 insuffient for gradient checks using
879      averaged fields (I/O via cost_averages)
880      -> use ctrl.h in active_file*.F to control I/O precision.
881    o paramter list of CALL ADTHE_MAIN_LOOP
882    o added initial do_the_model_io to ecco
883    o set all ...Freq to zero after cost_final
884      taveFreq, dumpFreq, pChkptFreq
885    o MAIN and ECCO differentiability restored
886    
887    checkpoint52j_post
888    o fix nchklev in tamc.h for global_ocean...
889    o Bringing flow and store directives up-to-date
890    o Really weird thing!
891      call do_the_model_io from the_main_loop with parameters
892      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
893      TAF places a faulty re-call of initialise_varia
894      after cost_final call which should not be there!
895    checkpoint52j_pre
896    
897    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
898      error messages
899    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
900    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
901      debug output
902    o modfied mdsio_writefield.F to handle non-global files under exch2
903    o update AIM Cubed-Sphere exp (aim.5l_cs):
904      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
905    o update AIM Equatorial Channel exp:
906      use standard aim_v23 pkg and change the SST fields to be more realistic.
907    o globalFile now works with exch2
908    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
909      mon_vort3.F to make exch2 friendly with >1 tile per cube face
910    o limit timeave output for hi-res integrations
911    
912    checkpoint52i_post
913    o removed CPP_EEOPTIONS.h from verification/*/code
914    o updated the tiling for global_ocean_pressure
915    checkpoint52i_pre
916    
917    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
918      the old pkg/aim).
919    
920    checkpoint52h_pre
921    o shortened offending lines in exch2_send_rx?.template
922    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
923    o genmake2: add build & execute test for NetCDF code
924    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
925      old grid files, moved CPP_EEMACROS.h to pkg/exch2
926    o added useSingleCPUIO flag to monitor.F and mon_out.F
927    o added temporary hack for sea-ice dynamics on the cube:
928      metric terms are ignored and it is assumed that
929      there is no sea-ice on cube faces 1, 2, 4, and 5.
930    
931    checkpoint52f_post
932    o added exch2 cube routines to pkg/exch2
933    o modified hs94.cs-32x32x5 to use it
934    o added new grid files to hs94.cs-32x32x5
935    checkpoint52f_pre
936    
937    checkpoint52e_post
938    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
939      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
940    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
941      to work with implicit vertical advection and AB ;
942    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
943    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
944     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
945    checkpoint52e_pre
946    
947    o fix bug in impldiff when Nr=1 or Nr=2.
948    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
949    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
950    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
951      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
952    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
953    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
954    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
955    
956    checkpoint52d_post
957    o re-tiled many expts to allow comparison in multi-processor mode
958      - updated output accordingly
959      - changed hs94.128x64x5 to use intial T from file rather than use the
960        random number generator
961    o add infrastructure in model routines for fizhi and gridalt packages
962    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
963    o changes to permit hi-res, cubed-sphere, configuration
964      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
965      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
966      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
967        of surface winds for the cube
968      (A verification experiment, based on global_ocean.cs32x15, but with
969       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
970       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
971       complete with example surface forcing files and matlab scripts to look
972       at the output and compare it with that of global_ocean.cs32x15.)
973    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
974       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
975       to conform to the common rule.
976    o check-in the first version of the coupler + interfaces for multi-components
977       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
978       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
979       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
980       - ocean and atmos. share the same horizontal grid (no interpolation).
981       - exchanges between component and coupler is done in forward_step
982    o new verification experiment, cpl_aim+ocn:
983       coupled ocean - AIM atmosphere on cs32 grid.
984    
985    checkpoint52d_pre
986    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
987    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
988    
989    checkpoint52c_post
990    o Fixing OPTIONS files for use of exf:
991      - ALLOW_ECCO not needed
992      - ECCO_CPPOPTIONS.h should not be included from
993        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
994        as has been the case in the past
995      - All cal/exf related options are currently set in
996        single header file. Should remain so until we
997        agree on a consistent new policy.
998    o Removed all CPP options for cal package.
999      cal has no more CPP options.
1000    o modified STOREs in GAD_ADVECTION
1001    o corrected key comp. for passkey
1002    
1003    checkpoint52b_post
1004    o new version: "thsice" of thermodynamic sea-ice pkg:
1005     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1006     - modify fluxes but do not change theta directly;
1007     - light cleaning of bulk_force pkg (still needed with thsice).
1008     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1009       + output_thsice.txt to test thsice & bulk_force pkgs.
1010    o put back grid & coriolis monitor output.
1011    checkpoint52b_pre
1012    
1013    o call "do_the_model_io" at the beginning (=> dump initial state)
1014    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1015    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1016      (need info on NUMBER_OF_PTRACERS)
1017    o missing PTRACERS headers in some routines
1018    o default tamc.h in pkg/autodiff supposed to crash
1019      to ensure proper customization
1020    
1021    checkpoint52a_post
1022    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1023      - moved surfaceTendencyTice from pkg/seaice to main code
1024      - subroutine FREEZE_SURFACE now limits only surface temperature
1025        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1026        => new output.txt for global_ocean.cs32x15 & global_with_exf
1027      - keep the old version of FREEZE for backward compatibility;
1028        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1029      - corresponding modifs for TAF directives
1030    o added surface flux output variables to TIMEAVE_STATVARS
1031    o time-averaged output for pkg/ptracers
1032    o fix problem with ECCO-related divided adjoint
1033      snapshot file was missing some ad-variables,
1034      but no warning issued by TAF
1035    
1036    checkpoint52a_pre
1037    o some bug fixes for #undef REAL4_IS_SLOW
1038    
1039    checkpoint52 = ecco_c52_e35
1040    o after testing adjoints of checkpoint51u_post
1041    
1042    checkpoint51u_post
1043    o this is the post-merge tag of the ecco-branch
1044      (needs another clean checkout and re-testing)
1045    o various natl_box_adjoint configs and results
1046      but no input fields
1047    o obcs adjoint not yet merged!
1048    o adding ECCO global 1x1 and 2x2 degree configs
1049    o updated/extended some store directives for seaice
1050    o pkg/ecco now containes ecco-specific part of cost function
1051    o top level routines the_main_loop, forward_step
1052      supersede those in model/src/
1053      previous input data.cost now in data.ecco
1054      (new namelist ecco_cost_nml)
1055    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1056    
1057    checkpoint51t_post
1058    o this is the pre-merge tag of the ecco-branch
1059    
1060    checkpoint51s_post
1061    o cleanup: removed various obsolete #define-s
1062    o pkg/grdchk
1063      - renamed 'ph-grd 3' to 'grad-res'
1064      - merged from ecco-branch
1065        (remaining bug fixes for obcs gradient checks)
1066      - additional high-precision output for testreport
1067        (grep for 'precision_grdchk_result')
1068    
1069    checkpoint51r_post
1070    o cleaned up or removed CPP_OPTIONS.h files
1071    o updated results for some of the tests to reflect the new
1072      optfiles (-ieee: -O0 instead of -O3)
1073    
1074    checkpoint51q_post
1075    o cd_code:
1076      - moved cd_scheme.F -> cd_code_scheme.F
1077      - separate read_checkpoint from cd_code_ini_vars.F
1078      - separated cd_code part from write_checkpoint
1079      - updated AD_SOURCE, generated .flow
1080      - added CD_CODE_VARS.h to the_main_loop
1081      - Moving cd_code specific store dir.s to pkg/cd_code
1082    o ctrl package totally restructured
1083      - pack/unpack now optional and decoupled from
1084        xx_/adxx_ I/O
1085      - ctrl_pack/unpack cleaned
1086        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1087      - confined inclusion of AD_CONFIG.h to where necessary.
1088    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1089    
1090    checkpoint51p_post
1091    o create initial cd_code package
1092      - WARNING: the initialization of fields within packages
1093        is broken because INI_FIELDS (where READ_CHECKPOINT is
1094        called) is called *before* PACKAGES_INIT_VARIABLES.
1095        This seems to be backwards since
1096        1) its important to initially zero the entire field including
1097           the "halo" region
1098        2) zeroing needs to be done *before* reading pickup info
1099           and the pickup call might or might not happen in any
1100           particular run
1101      - this needs an overhaul for R2
1102    o cleanup verification/*/code/GMREDI_OPTIONS.h
1103    o cleanup testreport
1104    
1105    checkpoint51o_post
1106    o bringing AD-related verif's up to date with genmake2
1107      - carbon/
1108      - global_ocean.90x40x15/
1109      - hs.94.1x64x5/
1110      - (front_relax/ )
1111    o (more) consistent directory structure for AD-related verif.'s
1112    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1113    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1114    o bug fix in find_alpha.F for MDJWF:
1115      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1116        change rho -> rho-rhoConst
1117      - replace call find_rho to find_rhonum
1118    o initialisation of rFlx extended to full array (required by TAF)
1119      and shifted to thermodynamics
1120    o removed PTRACERS.h in ptracers routine
1121    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1122    o Correcting initialisations for fVerU, fVerV.
1123    o helping TAF to recognize dependency on kUp for
1124      fVerU, fVerV
1125    o Replacing delZ by delR in pkg/ctrl/
1126    checkpoint51o_pre
1127    
1128    o undid all of cp51 pending some cleanups and discussion
1129    o added the [#include "AD_CONFIG.h"] statement to all files that need
1130       it for adjoint/tl #defines
1131     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1132     o removed tools/genmake since it no longer works
1133    
1134    checkpoint51n_post
1135    o modifications to make FREEZE flux visible to pkg/kpp
1136      - moved surfaceTendencyTice from pkg/seaice to main code
1137      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1138      - subroutine FREEZE now limits only surface temperature
1139        (this means new output.txt for global_ocean.90x40x15,
1140         global_ocean.cs32x15, and global_with_exf)
1141    o added surface flux output variables to TIMEAVE_STATVARS
1142    
1143    checkpoint51n_pre
1144    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1145    o added [#include "AD_CONFIG.h"] to all files that use the following
1146      defines:
1147      - ALLOW_ADJOINT_RUN
1148      - ALLOW_TANGENTLINEAR_RUN
1149      - ALLOW_ECCO_OPTIMIZATION
1150    
1151    checkpoint51m_post
1152    o incorporating changes to get TAMC/TAF working in genmake2
1153      - added new TAMC/TAF targets to the Makefile
1154      - various cleanups related to package handling
1155      - these changes should have no impact on the forward model
1156    
1157    checkpoint51l_post
1158    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1159     - faster algorithm for cal_addtime.F
1160     - higher precision arithmetic, where needed
1161     - pkg/exf *startdate variables changed from calendar date to
1162       model integration time
1163    
1164    checkpoint51l_pre
1165    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1166    o enable to apply restoring on S & T only in a latitude band.
1167    o update output (external_forcing_surf modif. change truncation errors)
1168       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1169    
1170    checkpoint51k_post
1171    o change default to: useNHMTerms=.FALSE.
1172     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1173       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1174     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1175        exp1, ideal_2D_oce
1176     - change data file of oceanic exp (leave the results unchanged for now)
1177       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1178    o set gravitySign automatically according to the vertical coordinate used
1179      (and change sign: back to "logical" value: +1 when R increases downward)
1180    o added an include barrier to the default CPP_OPTIONS.h and
1181      removed the #include "PACKAGES_CONFIG.h" from it
1182    o fix a bug in mom_fluxform (from chk51j_post)
1183    
1184    checkpoint51j_post
1185    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1186    o adjusted some flow directives (dynamics, thermodynamics)
1187    o added cubed-sphere case to test cost function
1188    o heckpoint_lev?_directives.h now include
1189      pkg-specific directives, whenever those are enabled.
1190    o Moving pkg-specific flow directives to corresponding pkg
1191      Moving pkg-specific differentiation list to corresponding pkg
1192      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1193      ---> conventions are
1194           - pkg_ad.flow
1195           - pkg_ad_diff.list
1196           - pkg_ad_check_lev?_dir.h
1197    
1198    checkpoint51i_post
1199    o merge of the branch-genmake2
1200      - knowingly breaks the older genmake
1201      - automatic generation of all ALLOW_${PKG_NAME} defines
1202      - new testreport supersedes older testscript
1203    o large number of package inclusion and header cleanups
1204    checkpoint51i_pre
1205    
1206    o new output for adjoin of global ocean vector invariant
1207    o fix for checkpoint of thermodynamic seaice and bulk_force
1208    o Steph gchem various cleanups
1209    
1210    checkpoint 51h_pre
1211    o fixed some single quotes
1212    o modify gchem pkg to be more versatile
1213    o modifications to clean up dic pkg
1214    o add pkg/cfc
1215    
1216    checkpoint51g_post
1217    o provide links for ARPACK and ADM*TLM
1218    o start removing verification/vero/
1219    o update AD-related stuff
1220      (in particular some IF-statements in model/src/ routines)
1221    o adding to verification/global_ocean.90x40x15/ adjoint of
1222      vector invariant setup
1223    
1224    checkpoint51f_post
1225    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1226    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1227      of tracer Green's fucntions for ocean inversion project.
1228    
1229    checkpoint51f_pre
1230    o Added on-the-fly spatial interpolation capability
1231        "USE_EXF_INTERPOLATION" to pkg/exf.
1232      - This is a temporary Cartesian-grid hack until
1233        the super-duper ESMF coupler becomes available.
1234      - See verification/global_with_exf/README for usage example.
1235      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1236        flags and modified pkg/seaice accordingly.
1237    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1238        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1239        non-local transport term.
1240    
1241    checkpoint51e_post
1242    o pkg/mom_vecinv:
1243      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1244      - add time-ave diagnostic of vorticity advection.
1245    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1246    o atmospheric geopotential: - include water vapor effect;
1247                                - use p^kappa in p* scaling.
1248    o land pkg: read initial state from files.
1249    o AIM : add stratospheric drag in the upper level
1250    
1251    checkpoint51d_post
1252    o change function ILNBLNK (=> last non-blank char.) to return zero
1253      (instead of the string length) when the string. char is empty
1254    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1255    o modif's to restore TAMC compatibility
1256      - avoid "_d" constructs in PARAMETER declarations
1257      - avoid interrupting lines by comment lines
1258    o Use cluster local disks for purely local I/O
1259      vs. globally visible disks needed for ctrl stuff
1260      (merged from ecco-branch)
1261      - new active_file_loc... and mdsio_..._loc routines
1262      - affected packages: autodiff, ctrl, grdchk, mdsio
1263    
1264    checkpoint51c_post
1265    o introducing integer flag debugLevel
1266      - debLevZero: suppress all output
1267      - debLevA: standard
1268      - debLevB: equivalent to current debugMode=.TRUE.
1269    o introducing pathname variable mdsioLocalDir for mdsio
1270      that can be specified at runtime
1271      (relevant for cluster I/O to local disk)
1272    `
1273    >>>checkpoint51b_post
1274    adjoint of ptracers
1275    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1276    o extended state in checkpoint_lev?, etc.
1277    o alternative ctrl/cost with tr1 or ptracer
1278    o new comlev1_bibj_ptracers
1279    o new ptracers.flow
1280    o made ptracers_forcing same as external_forcing_s
1281    o added verification for adjoint with ptracers
1282      - adm. grdchk fail so far
1283      - tlm. grdchk OK
1284      - checked tapelev/comlev recomputations: OK
1285    <<<checkpoint51b_pre
1286    
1287    checkpoint51a_post
1288    o added code for biogeochemistry package
1289      - new pkgs: dic, gchem
1290      - new subroutine in ptracers
1291    o modify code for biogeo packages
1292      - in model/src and pkg/ptracers
1293    
1294    checkpoint51
1295    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1296      - autodiff, ctrl, exf, grdchk, seaice
1297      kept separate packages
1298      - cost, ecco, obcs
1299    o updating verification/internal_wave, verification/lab_sea
1300      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1301    
1302    checkpoint50i_post
1303    o Preparing next differentiable checkpoint and sync
1304      of MAIN vs. ecco-branch
1305      - 1st step: this one is differentiable
1306      - 2nd step: next(! not this) checkpoint will have updated packages
1307                  from ecco-branch)
1308    
1309    checkpoint50h_post
1310    o new package "land": provide surface BC for AIM.
1311    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1312    o AIM: use true log-P extrapolation for near surface temp (= as in
1313        F.Molteni paper) ; update aim.5l_cs output.
1314    o New variable in PARM03 for more flexible pickups
1315    o somewhat cleaned package initialisation sequence for
1316      ctrl/ cost/ ecco/ in packages_... routines
1317    
1318    checkpoint50g_post
1319    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1320      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1321      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1322        made the default because of faster convergence than ADI
1323    
1324    checkpoint50f_post
1325    o exf totally restructured
1326      - replaced all exf_set_ routines by one generic exf_set_gen.F
1327        and made sure it's still differentiable
1328      - split exf_getffields.F into new exf_bulkformulae.F
1329      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1330      - updated adjoint/makefile and relevant verif. accordingly
1331    
1332    checkpoint50f_pre
1333     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1334          + change Evap over land. (update aim.5l_cs output)
1335     o added missing .cvsignores and made uniform across expts
1336     o changed configuration of tidal_basin_2d expt
1337     o added pkg/debug functions for tracing code in fatal crashes
1338     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1339     o new fn in pkg/monitor to stop model if solution grows too big
1340     o removed lots of single quotes from comments
1341    
1342    checkpoint50e_post
1343    o make KPP work with PTRACERS
1344     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1345       nearly a copy of kpp_transport_s
1346     - there is no analogue to SurfaceTendencyS, so I have to use
1347       gPtr(of the surface layer) instead
1348    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1349    checkpoint50e_pre
1350    
1351    checkpoint50d_post
1352    o change kpp output from multiple-record state files to single-record state
1353      files analogous to write_state.F
1354    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1355      analogous to the cg2d-related output.
1356    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1357      so that writing to internal file fn (with length 512) fails.
1358    checkpoint50d_pre
1359    
1360    checkpoint50c_post
1361    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1362    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1363    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1364    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1365    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1366    
1367    checkpoint50c_pre
1368    Merging from release1_p13:
1369    o bug fix for pkg/seaice dynamic solver
1370    o Added SEAICE_initialHEFF to pkg/seaice
1371    
1372    checkpoint50b_post
1373    o store u*,v* in gU,V instead of in guNm1,gvNm1
1374    o in order to put the momForcing out of the Adams-Bashforth:
1375      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1376      to timestep.F
1377    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1378    o re-generate output for highly sensitive test-exp:
1379       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1380    
1381    checkpoint50b_pre
1382    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1383    o corrected CPP option mismatch in exf_Bulk... functions for case
1384      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1385    
1386    checkpoint50a_post
1387    o Bug fix for merging between c50 and KPP.
1388      ikey was passed from thermodynamics to kpp_calc via
1389      common block rather than being recomputed in kpp_calc,
1390      in contradiction with new key itdkey.
1391      New key ikppkey created, and tamc.h headers updated.
1392    
1393    checkpoint50
1394    - 2nd step of merge with ecco-branch:
1395      merge changes in ecco-branch back into main trunk
1396    - bug fix in find_alpha
1397    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1398    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1399    - merged some sliced AD support routines
1400    
1401    checkpoint49
1402    merged from ecco-branch:
1403    o exf:
1404      - Enable initialisation of forcing fields to constant
1405        (runtime) values.
1406      - in exf_getffields.F
1407        Reduce i-/j-loop to interior domain, discarding overlaps.
1408        That also fixes wrong TAF-key computations for key_1, key_2
1409        with bulf formulae.
1410      - exf_init.F modify #ifdef for exf_init_evap
1411      - exf_getffieldrec.F, ctrl_getrec.F
1412        The following INT-usages are not safe:
1413          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1414          fldcount = int(fldsecs/fldperiod) + 1
1415        and were modified.
1416    o autodiff: checkpoint_lev...
1417      - updated storing for bulk formulae (some arrays were missing)
1418      - added state for seaice package
1419      - synchronized with main branch
1420    o DIVA:
1421      Modif.s in
1422      - the_main_loop.F
1423      - the_model_main.F
1424      and added cost_final_restore.F cost_final_store.F
1425      o With these changes, it is possible to fully separate
1426        the first forward run to compute the cost function (mdthe_main_loop)
1427        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1428        into separate model executions.
1429        This enables better tuning of DIVA to given queue sizes.
1430      o Loss of cost function value in consecutive DIVA runs is
1431        fixed by storing to 'costfinal' file.
1432      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1433        beginning/end of adjoint integration is accounted for.
1434      The current changes apply to TAF-1.4.26.
1435      TAF has one remaining bug, requiring one manual change
1436      (see MITgcm manual).
1437    o cal: synchronized between MAIN and ecco-branch
1438    
1439    checkpoint48i_post
1440    o Changes to restore differentiability of code w.r.t. previous tag
1441      (mostly adding new routines to make list and replacing
1442      pressure by totPhiHyd).
1443    o Updated and merged grdchk package
1444      - has both ADM and TLM checks
1445      - works for single- and multi-proc.
1446      - output cleaned
1447      - worked successfully for parallel DIVA
1448    o genmake:
1449      - Adding -platform=SP4
1450      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1451    o Modif. for DIVA:
1452      ctrl_unpack should not be called in intermediate DIVA interval.
1453      (similar thing would apply for active files such as
1454      tbar, sbar, psbar, which should not be reinitialised;
1455      only relevant for ecco-branch)
1456    
1457    checkpoint48h_post
1458    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1459    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1460    o Added SEAICE_initialHEFF to pkg/seaice
1461    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1462    
1463    checkpoint48g_post
1464    --- EOS:
1465    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1466      store total Potential in totPhyHyd for diagnostics & EOS.
1467    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1468    --- Pressure/geopotential gradient:
1469    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1470    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1471      ( changes results of global_ocean_pressure )
1472    o NLFS + z-coord.: add eta*Rho' contribution.
1473    o accurate phiHyd when using interface-W at the middle between 2 centers
1474     ( changes results of ideal_2D_oce )
1475    o includes r* 2nd term in potential gradient.
1476    
1477    checkpoint48f_post
1478    Merging from release1_p12:
1479    o Modifications for using pkg/exf with pkg/seaice
1480      - improved description of the various forcing configurations
1481      - added basic radiation bulk formulae to pkg/exf
1482      - units/sign fix for evap computation in exf_getffields.F
1483      - updated verification/global_with_exf/results/output.txt
1484    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1485      (SBO) core products, including oceanic mass, center-of-mass,
1486      angular, and bottom pressure (see pkg/sbo/README.sbo).
1487    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1488      to avoid negative values in shallow regions.
1489      - updated verification/natl_box/results/output.txt
1490      - updated verification/lab_sea/results/output.txt
1491    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1492    o Added useSingleCpuIO option (see PARAMS.h).
1493    o Updated useSingleCpuIO option in mdsio_writefield.F to
1494      work with multi-field files, e.g., for single-file pickup.
1495    o pkg/seaice:
1496      - bug fix in growth.F: QNET for no shortwave case
1497      - added HeffFile for specifying initial sea-ice thickness
1498      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1499    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1500      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1501    o pkg/seaice:
1502      - adjoint-friendly modifications
1503      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1504    
1505    checkpoint48e_post
1506    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1507    o dynamics: change definition of computational domain & adapt mom_fluxform
1508      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1509    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1510        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1511        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1512        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1513        inverted_barometer solid-body.cs-32x32x1
1514      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1515    
1516    checkpoint48d_post
1517    o in preparation for r*:
1518     a) use pre-computed gradient of hydrostatic potential:
1519        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1520     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1521        => affects results of glob_oce_pressure (different truncation error)  
1522      update output.txt of ideal_2D_oce & global_ocean_pressure
1523    
1524    checkpoint48d_pre
1525    o in preparation for r*:
1526      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1527      pass the 2 comp. of the grad. as arguments to momentum S/R.
1528      but for the moment, only used if it does not change the results.
1529    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1530    
1531    checkpoint48c_post
1532    Modifications in treatment of initial flux forcing controls
1533    to avoid extra storing of flux fields.
1534    
1535    checkpoint48c_pre
1536    o Added tidal_basin_2d experiment (currently 1D!)
1537    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1538    
1539    checkpoint48b_post
1540    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1541     (modification to pressure gradient not yet implemented)
1542    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1543      (for U & V) that are used for vertical advection of momentum.
1544    
1545    checkpoint48a_post
1546    o In preparation for r*, use temp. array to compute vertical transport
1547       in flux-form momentum pkg. => change results of few test-exp.
1548      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1549                        lab_sea, natl_box & plume_on_slope
1550    
1551  checkpoint48  checkpoint48
1552  o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')  o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1553    

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