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revision 1.90 by jmc, Wed Oct 9 01:11:56 2002 UTC revision 1.515 by jmc, Sun Jul 24 01:48:04 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 pkg/exch2: filling of face-corner halo regions is optional
8      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
9    
10    checkpoint57l_post
11     tag before updating tutorials (pre-release-2)
12    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
13       for output and interpolation of input fields onto model grid)
14    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
15       Affects results of exp. rotating_tank ; update output.txt.
16    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
17          and taking the square quantity and/or using a fraction-weight field.
18    o fix aim_diagnostics_init.F mate numbers.
19    o add mnc output capability to diagnostics/diagstat and update
20      our cvsignore files for the ACSII output generated
21    
22    checkpoint57k_post
23    o lab_sea now uses diagnostics package and provides a suite of
24      new EXF diagnostics output.
25    
26    checkpoint57j_post
27    o exf
28      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
29        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
30        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
31      * extended diagnostics output
32        - now includes all EXF variables
33        - hs, hl moved to common block
34        - separate S/R for diagnostics, called after ctrl vector is added
35        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
36        - EXFqnet contains true Qnet (i.e. includes qsw)
37      * updated verif. lab_sea, global_with_exf
38      * Rearranging hflux (exf_mapfields -> exf_getforcing)
39        to ensure that diagnostics sees a true EXFqnet
40    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
41    o diagnostics pkg: change pointers so that 1 diagnostic can be used
42      several times with different frequencies.
43    o mnc-ify the thsice package as requested by Daniel Enderton
44      - the monitor--MNC output needs work
45      - many attributes need to be added (most are currently blank)
46    o mnc-ify theaim_v23 package as requested by Daniel Enderton
47      - many attributes need to be added (most are currently blank)
48    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
49    o add Sadourny like discretization to the 4th.O vorticity advection scheme
50    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
51      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
52         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
53    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
54     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
55    
56    checkpoint57i_post
57    o Diagnostics package was changed: diagnostic allocation is now deactivated
58      by setting an empty file name in the namelist (used to be by setting 0 frequency)
59    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
60      add 1rst Order upwind vertical Shear.
61    o add a quick fix for A/B checkpointing in OFFLINE mode
62    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
63      end-run around the C/Fortran linking horror in eesup/src/timers.F
64    o added pkg/runclock: allows user to terminate run based on wall clock
65    o added non-hydrostatic scaling parameter: nh_am2
66    o pkg/my82: futile attempt to make results compiler-independent by adding
67      some "_d 0", etc. no effect.
68    o for mnc output, fill the 'T' coordinate var with myTime and create a
69      separate 'iter' variable for iteration count
70    o pkg/diagnostics:
71      add new capability: output of Global/Regional & per-level statistics ;
72      tested against monitor output (including land & thSIce) on various exp.
73    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
74    
75    checkpoint57h_done
76      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
77      data.diagnostics, data.gchem, data.ptracers) is done.
78    
79    o pkg/diagnostics: prepare for Global/Regional statistics.
80      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
81    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
82      and rename it: DIFFERENT_MULTIPLE
83    
84    checkpoint57h_post
85    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
86    o pkg/diagnostics: change output frequency, now in seconds (instead
87      of Nb of iterations). This requires to change data.diagnostics.
88    checkpoint57h_pre
89    
90    o in mnc, let the user create the output dir if both mnc_outdir_date
91      and mnc_outdir_num are false
92    o add fflags() to pkg/diagnostics which allows one to specify, on a
93      per-file basis, the file precision [default behavior is unchanged]
94    o added diagnostics to pkg/kpp, including computation of mixed layer
95      depth based on a temperature/density criterion
96    o updated verification/natl_box to test the new pkg/kpp diagnostics
97    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
98    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
99    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
100      not mnc -- this mistake was found by JMC and is now corrected
101    
102    checkpoint57g_post
103    o add Adams-Bashforth 3rd Order time stepping:
104      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
105      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
106    checkpoint57g_pre
107    
108    o make lambda[Theta,Salt]ClimRelax spatially varying
109      (default remains spatially uniform constant based on tau)
110    o added new control variables
111      * init. uVel, vVel, etanN
112      * lambda[Theta,Salt]ClimRelax
113    o separate masks used for ctrl_pack/unpack 'from write_grid' output
114      (suggested by G. Forget)
115    
116    checkpoint57f_post
117    o add parameter "baseTime" = model base time = time at iteration zero
118      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
119      account for baseTime shift
120    o move Coriolis arrays from PARAMS.h to GRID.h
121    checkpoint57f_pre
122    
123    o mnc-ifying the seaice package
124    o introduced an alternative length scale calculation for use in the limiting
125      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
126    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
127    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
128      as well as grad(vort3).  Made it compatible with both approximate form
129      for the cubed sphere and full form of these gradients.  Added flag
130      useFullLeith to select between approximate and full form.  
131    o add "d0" in getcon.F to reduce differences between compilers/platforms
132      update output.txt of exp. fizhi-gridalt-hs
133    o change port_rand funtion to allow to set the seed.
134    o fix obscure MNC bug involving conversion between reals and integers
135      - it caused no problems with certain (eg. gcc, ifc) compilers but the
136        new version is now more standards-compliant
137    o adjoint-related modifications
138      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
139      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
140      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
141    
142    checkpoint57e_post
143    o Adding eddy stress controls a la Ferreira et al.
144    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
145    
146    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
147      update output.txt of exp. fizhi-gridalt-hs
148    o add more "Z" dimensions and associated coordinate vars to MNC
149    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
150    o parameter calendarDumps: when set, approximate months (30-31 days) and years
151      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
152      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
153      months and years.  Requires pkg/cal.
154    o diagnostics: add pickup functionality
155      - off by default for backwards compatibility
156      - current version only uses MDSIO -- MNC will be added
157    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
158    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
159    
160    checkpoint57d_post
161    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
162    o modify verification/ideal_2D_oce so that it tests the creation of mnc
163      output from the diagnostics package
164    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
165    o make genmake2 more portable by using ".$FS" instead of ".f" for more
166      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
167    o add coordinate variables to the MNC output from the diagnostics package
168    o change MNC-flags default value: true when useMNC=TRUE
169    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
170      the ability (off by default) to read the grid information using MNC
171    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
172    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
173    o do snap-shot diagnostics at the middle of the time-interval (instead of
174      at the end).
175    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
176      new test for AIM with thSIce + slab-ocean
177    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
178    o move state variable diagnostics to the beginning of the time step ;
179      (note: still needs some work specially for snap-shot diagnostics)
180      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
181    
182    checkpoint57c_post
183    o Change testing option (-ieee) to get closer agreement between g77 & ifort
184    o generate new output.txt files on faulks with g77 & the new -ieee option
185    checkpoint57c_pre
186    
187    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
188      update output.txt of exp. global_ocean.90x40x15
189    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
190      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
191    o add saltFlux(+File) forcing capability with periodicExternalForcing
192    o allow to use pkg diagnostics for GM-Redi & ThSIce output
193    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
194    o improvements for the MNC output from DIAGNOSTICS:
195      - correct handling of the unlimitied dimension
196      - all dims now have associated coordinate variables
197      - variables located at U, V, and Corner ("Z") points are now written
198        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
199        *all* data points are output
200    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
201    o added pkg/seaice/seaice_monitor.F
202    o mdsio_readfield.F can now read files visible only to master MPI process.
203    o pkg/seaice: some test code for ice-modified ocean stress
204    o exf_getffields interpolation defaults to bilinear for all scalar forcing
205      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
206      spurious negative numbers for precipitation and humidity.  Will cause
207      some small numerical differences for integrations using pkg/exf/exf_interp.F.
208    o pkg/ctrl/
209      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
210        May be enabled via doPackDiag
211      *  introduce z-scaling of
212         + gradient (doZscalePack) and
213         + control (doZscaleUnpack)
214    o pkg/mdsio/
215      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
216      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
217    
218    checkpoint57b_post
219    o simplify options in diagnostics_fill arguments (remove weird combinations)
220    o fix MNC coordinate variables so that they now contain per-face index
221      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
222      general, EXCH2 grids are only aligned to a "local" coordinate system
223    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
224    o Implement instantaneous output within pkg diagnostics:
225      setting a negative frequency in data.diagnostics produces
226     "snap-shot" output (as opposed to time-average if freq > 0)
227    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
228      NOTE: change ptracer diagnostics name: use 2 characters to work with
229            more than 9 tracers. Add also diagnostics of advect & diffus flux.
230    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
231      becomes the coordinate variable for the 'T' dimension
232    o add CF-style coordinate variables to MNC
233      - just a first cut:  numbers are meaningless on the cubesphere and
234        missing along the T axis but otherwise it works!
235    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
236    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
237    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
238      this is based directly on what the model compute, so that the content of
239      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
240    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
241    o clean up build options files for SunOS, in particular
242      - remove -traditional from xmakedepend
243      - change -xarch=v9 to -xarch=native for f77
244      - restore use of make (not gmake)
245      - add CC=gcc if using g77
246    o changes per discussion of AM, JMC, & EH3 today:
247      - move redundant "grid" variables out of "state" -- in preparation of
248        creating proper CF-style coordinate variables and in recognition
249        that any/all grid variables can be easily copied (eg. w/NCO) from
250        the grid files into any of the other NetCDF files
251      - *always* output grid variables with MDSIO (this will eventually be
252        changed)
253      - output MNC grid file if useMNC is true
254    o every instance of _END_MASTER() has been found and replaced with
255      _END_MASTER( myThid ) in order to satisfy certain picky Sun
256      preprocessors
257    o re-arrange diagnostics pkg initialisation:
258     - allow each package to extend the available diagnostics list
259     - add some checking and fix small problems (multi-threaded, ...)
260     - new S/R diagnostics_fill (replace fill_diagnostics):
261       look through the short list of active diag. (instead of the long list)
262       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
263    
264    checkpoint57a_post
265    o this set of changes restores TAMC compatibility
266      tested for global_ocean.90x40x15 adjoint on trough
267      (what a pain)
268    
269    checkpoint57a_pre
270    o some modifs in tools/build_options for sunos
271    o call ctrl_pack for ctrl at end for optimcycle=0
272    
273    checkpoint57
274    o add horizontal bi-harmonic viscosity for vertical velocity
275      - new parameter viscA4W (defaults to viscA4)
276      - affects only non-hydrostatic code
277      - to be done: no-slip lateral boundary conditions
278    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
279    o implement Implicit Vertical advection for pTracers
280    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
281      (implemented also for implicit vertical diffusion & advection)
282    o OBCS: extend application of tracer open boundary conditions
283      to a strip beyond the boundary of width Olx/Oly
284    o add call monitor to TAF set of required calls (flow directives)
285      and include in natl_box_adjoint
286    o untangle a few ifdefs related to cost, ctrl, autodiff
287      untangel a few ALLOW_ECCO_OPTIMIZATION
288    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
289      (theta2, salt2 in ecco_cost_weights)
290    
291    checkpoint56c_post
292    o OBCS as control variables
293      - update ctrl_ad_diff.list, obcs_ad_diff.list
294      - remove balance of obcs controls from default
295      - fix index bug nobcs in ctrl_init
296      - fix dummy fields filen in ctrl_pack
297      - add dummy weights for obcs
298    o lsopt: comment out fort.94 output
299    o optim:
300      - remove unnecessary header files
301      - adjusted namelists
302      - add xerbla.F to Makefile
303    o exf:
304      - multiple modifications of exf_check_range
305      - unit change in exf_init_runoff from [m/year] to [m/s]
306    o mdsio:
307      - i/o-vector change debugLevel from debLevA to debLevB
308    
309    checkpoint56b_post
310    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
311      is called from DO_THE_MODEL_IO
312      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
313      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
314      - clean up PTRACERS_WRITE_TIMEAVE a little
315    o add another verification experiment that tests both the cfc-pkg and
316      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
317      reactive tendencies treated inline with regular timestepping
318    o testreport previously did a lousy job of comparing small numbers, so
319      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
320      implemented in the little c-progam tmp_cmpnum.c which is embedded in
321      testreport.
322    o ptracers_monitor: bug fix for MPI
323    
324    checkpoint56a_post
325    o GCHEM: finish reorganizating the package
326      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
327        (introduces another 3D-array for each passive tracer, but only if
328        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
329        gchemTendency is not needed because the timestep is done separately)
330      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
331      - GCHEM is now---more or less cleanly---separate from PTRACERS
332      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
333        so clear to me how that should be done in a general way.
334    o CFC: improve formatting of output in CFC_ATMOS
335    o PTRACERS:
336      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
337        that ALL experiments with ptracers enable can be checked. This makes
338        GCHEM_MONITOR obsolete.
339      - include a runtime parameter PTRACERS_monitorFreq that defaults to
340        monitorFreq
341      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
342    o add PTRACERS (PTR0[1-5]) to testreport output
343    o exf_check_range:
344      * default changed to .TRUE.
345      * will check values for niter0 if debLevA, every timestep if debLevB
346      * STOP in exf_check_range if 'out of range'
347      * range chosen generous to allow for potential extema
348      TBD: a version with stricter range
349           permitted range would be runtime parameters
350    o GMredi:
351      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
352      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
353      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
354    o GCHEM:
355      - move call to GCHEM_FORCING_SEP, so that it is now called before
356        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
357      - introduced a useGCHEM runtime flag and applied it everywhere.
358      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
359        this flag is now only visible within GCHEM-pkg routines.
360      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
361        be replaced by a 3D array that is computed before thermodynamics; for
362        this, the tracer ID iTracer had to be included into the parameter list
363        of ptracers_forcing
364      - set up forward_step to call gchem_forcing, that will replace
365        gchem_forcing_int in ptracers_forcing
366      - cleaning up
367    o small cleaning of exch2: remove files that are also in eesupp/src
368    
369    checkpoint56
370    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
371    o mnc: cleanup "full" files--fixes out-of-memory problem
372    o ECCO-GODAE
373      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
374      * fully merged and updated from SIO code
375        windstress sign change affects
376        - exf_inscal_[u/v]stress
377        - sign of xx_tau[u/v] adjustments
378        - signs in cost_scat
379      * ctrl_get_gen: avoid update of tau[u/v] for first few days
380      * natl_box_adjoint updated and compressed
381      * 2-level checkpoint switch added
382        (tested in EXP. 1 of natl_box_adjoint)
383      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
384    o SVD
385      * first complete, non-hacked version for SVD calculations
386      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
387        performed via direct access files admtlm_vector.it????
388        (via ctrl_[un]pack)
389      * optimcycle is used for ARPACK iteration counter
390        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
391      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
392        and add linear transforms where necessary
393      * controls are initial/final SST, SSS (can be extended; need to check
394        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
395    o mdsio: filename info to both stderr, stdout
396    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
397      from sign change
398    
399    checkpoint55j_post
400    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
401      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
402    o add consistent build directories and .cvsignore files to verification
403    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
404    o make all subroutines 30 or less characters in length for certain older
405      compilers to work (a thorough search only turns up two routines in
406      pkg/ptracers)
407    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
408      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
409    
410    checkpoint55i_post
411    o change arrays for total vertical diffusivity (2.D if explicit,
412      3.D if implicit) ; each ptracer uses its own background value.
413    o added mnc/NetCDF output capability to ocn_compon_interf
414      - added bits to verification/cpl_aim+ocn so that it can run on
415        ITRDA and other clusters without the mpirun "-wd" option
416    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
417      configuration
418    o give MNC the ability to create additional files rather than
419      exceeding a specified file size limit "MNC_MAX_FILESIZE"
420      - the default is just less than 2GB which is a practical limit
421        on many systems
422    o Compute the non-local term using either KPP vertical diffusivity (=default)
423       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
424    
425    checkpoint55h_post
426    o add verification test "vermix"
427    o remove all the *_ioinc flags and replace with the single global
428      outputTypesInclusive flag
429    o allow to set a vertical profile of vertical diffusivity for T & S
430    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
431    o useMNC moved from data.mnc to data.pkg
432    
433    checkpoint55g_post
434    o Renaming carbon AD experiments to comply with testreport conventions
435    o Updating adjoint of Held-Suarez hs94.1x64x5
436    o Fixing directives for non-ECCO forward_step, after ECCO directives
437      have been fixed to avoid recomp. of do_oceanic_phys
438      Works well for global_ocean.90x40x15,
439      but recomp. issue remains for carbon
440    o Updating adjoint output for natl_box_adjoint after
441      pkg/ecco has been modified (see taga c55d_post)
442    
443    checkpoint55f_post
444    o rename to timeave_init_fixed
445    
446    checkpoint55e_post
447    o some delicate re-shuffle of store directives to avoid one
448      extra call of do_oceanic_physics
449      affects ecco_the_main_loop.F, do_oceanic_physics.F
450      checkpoint_lev1_directives.h
451    o NB: this may break global_ocean adjoint temporarily,
452      but it is clear how to fix it. Will do later, need this now.
453    
454    checkpoint55d_post
455    o ECCO specific cost function terms (up-to-date with 1x1 runs)
456    o ecco_cost_weights is modified to 1x1 runs
457    o modifs to allow observations to be read in as
458      single file or yearly files
459    o enable to read exf forcing fields as either
460      single file or yearly files (flag useExfYearlyFields)
461    checkpoint55d_pre
462    
463    o switch between 2-level and 3-level checkpointing
464    o add ability of MNC to write local and "partial" (eg. 2D slices where
465      the full 3D field is never actually stored) arrays to NetCDF files
466      with the correct (that is, the complete multi-dimensional) set of
467      array indicies
468      - used in mom_vecinv() to write the diagFreq output
469      - tested (demonstrated) in verification/aim.5l_cs
470    o further mnc-ification
471      - add verification/lab_sea to the list with mnc setups
472      - fix undefined mnc v-names in cd_code
473      - add kpp to mnc output (both snapshot and timeave)
474    o non-hydrostatic code
475      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
476        in calc_gw.F
477      - defaults to viscAh
478      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
479        friction or Leith) in non-hydrostatic mode, as long as there is
480        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
481    o pkg/cost
482      extend simple cost functions to treat time mean quantities
483      (T,U,V) via cost_accumulate_state from cost_tile
484    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
485        be 2 times larger than the minimum size the advection scheme requires.
486        now get a perfect conservation of salt in advect_cs test-exp (updated)
487    o GGL90 (Gaspar's TKE mixed layer)
488      - add horizontal diffusion of TKE, requires exchanges in
489        do_fields_blocking_exchanges, horizontal diffusivity is zero by
490        default. In OPA there is no horizontal diffusion of TKE but the
491        mixing coefficients are computed from a horizontal average of TKE of
492        6 points or so. I think that diffusion has a little more physical
493        justification.
494      - clean up ggl90_calc in the hope of reducing memory usage (this hope
495        was in vain)
496      - mask tke-variable in ggl90_init
497    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
498    o fix biharmonic diffusion on CS-grid.
499    o more obcs stuff
500      - added obcs_external_fields_load as an alternative to the EXF-pkg option
501        for reading boundary values. This routine is called from
502        obcs_prescribe_read
503      - updated obcs_check
504      - changed sponge layer relaxation parameter units for days to seconds
505      - turned off sponge layer by default
506      - changed argument list of OBCS_CALC to myTime+deltaTclock
507      - fixed about 35 bugs in obcs_external_fields_load
508    
509    checkpoint55c_post
510    o obcs stuff
511      - new runtime flags useOBCSprescribe, useOBCSbalance
512      - re-arranged obcs_calc
513      - moved exf_getobcs to obcs_prescibe_read
514        obcs_prescibe_read is called after ORLANSKI stuff
515        and independent of it (executable can contain all).
516      - updated obcs_check
517      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
518        These may be necessary only if tangential velocities are
519        prescribed at OB, not sure, needs testing.
520    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
521      which simplifies the calls and passes the ifc check-bounds test
522    
523    checkpoint55b_post
524    o add a 2D scalar, Z location, exchange_2 routine.
525    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
526      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
527      affects advect_cs results (for the wrong reason): update output.txt
528    o use a more standard discretization for biharmonic viscosity ;
529     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
530      affects results of dome set-up: update output.txt
531    o fix gad_advection.F (CubedSphere part), back to version 1.23
532    o fix bug in mom_vi_del2uv.F (CubedSphere part).
533    
534    checkpoint55a_post
535    o merged code to
536      * prescribe/read time-dependent open boundaries
537        (works in conjunction with exf, cal)
538      * sponge layer code for open boundaries
539      * each boundary N/S/E/W now has its own CPP option
540        (healthy for the adjoint)
541    
542    checkpoint55
543    o up-to-date adjoint of previous breaks
544      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
545      - global_ocean_ebm: adjoint still needs fix (TLM ok)
546      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
547      - carbon: * remove tr1-related adjoint verification
548                * add ptracer as control variable
549    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
550      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
551    
552    checkpoint54f_post
553    o in verification/carbin/ remove experiment related to
554      ALLOW_PASSIVE_TRACER (array tr1 etc)
555      code_ad/ input_ad/ results_ad
556    
557    o add two new packages
558      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
559        + subject to optimization (memory)
560      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
561        + subject to reordering (many GOTOs in the original code)
562        + so far opps is called for every (i,j) point, and then operates in
563          the vertical; one may want to reorder the scheme in order operate in
564          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
565          fields)
566    o overhaul of IO so that we now have flags for MDSIO and/or MNC
567      - all verification tests compile and run with linux_ia32_g77
568      - defaults are compatible with current input files--nothing
569        should change if you were not previously using MNC
570      - MNC output has been added in numerous places (eg. timeave)
571        but there are still a few writes not yet do-able with MNC
572        (this is in progress)
573      - flags now allow for either/or/both use of MDSIO and MNC and
574        documentation will soon follow
575      - numerous small formatting cleanups for ProTeX
576    o add version info (via BUILD_INFO.h) to MNC and stdout
577    
578    checkpoint54e_post
579    o add two new packages
580      - pp81 (Packanowski and Philander, 1981), Richardson number and
581        stratification dependent mixing
582      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
583      - these scheme operate in a similar manner as KPP (without ghat, of
584        course), however there is only one diffusivity that is used for both
585        temperature and salinity (and passive tracers)ç
586    o add offline package
587    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
588      provided by Stephanie Dutkiewicz
589    o genmake2: add ability to search for C compilers and cleanup test output
590      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
591    
592    checkpoint54d_post
593    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
594    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
595      leading to additional shift by 5 days each year of integration
596       (i.e. leading to considerable offset over the years)
597    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
598    o start with no AB and no initial filtering (staggerTimeStep):
599      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
600    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
601      (external loading & cpl import/export stay in forward_step.F)
602    o update coupling interface to work with new staggerTimeStep
603    o change MDSIO ptracers_pickup.
604    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
605    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
606    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
607    
608    checkpoint54c_post
609    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
610      this affects (truncation error) output.txt of test-exp:
611       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
612    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
613    o change Qnet to always be the net heat flux, (+upward).
614      affects (truncation error) output of natl_box exp.: updated
615    o define the max number of passive tracers in PTRACERS_SIZE.h
616    o start to test mnc routinely in exp0
617    o add sea-ice loading (sIceLoad) as a new forcing field.
618    
619    checkpoint54b_post
620    o add testreport "-j JOBS" option for parallel builds (tested and pretty
621       impressive on Altix and Opteron systems)
622    o diagnostics can now write NetCDF files through the mnc package
623    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
624    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
625    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
626      affects (truncation error) output of lab_sea & natl_box exp.: updated
627    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
628    
629    checkpoint54a_post
630    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
631    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
632    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
633    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
634      + internal_wave (shift in writing cg2d_ini_res)
635    checkpoint54a_pre
636    
637    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
638      - modified verification/lab_sea and natl_box_adjoint accordingly
639    
640    checkpoint54
641    checkpoint53g_post
642    o prepare splitting of thermodynamics: store convect.counter in common block
643    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
644      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
645    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
646    o new parameter "nShapS": allow to treat differently S from T (nShapT)
647    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
648    o restore adjointability
649    
650    checkpoint53f_post
651    o modifications that affect AIM experiment results (update output.txt):
652      - no advection of S at top interface Nr (pkg/generic_advdiff)
653      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
654    o AIM pkg:
655      - include stability function into surf.Flux derivative relative to Tsurf
656      - calculate clear-sky radiation & surface temp. change (for diagnostics)
657    
658    checkpoint53e_post
659    o merged cylindrical coord configuration
660    o added rotating_tank experiment
661    checkpoint53e_pre
662    
663    checkpoint53d_post
664    o faulks upgraded: re-generate output.txt that have changed:
665       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
666    o Added Bryan and Lewis, 1979, vertical diffusivity profile
667    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
668    o added Sadourny discretization of Coriolis
669      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
670      - re-enabled use of omega3 (useAbsVorticity)
671    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
672      vector-invariant equations
673      - note: does *NOT* yet use same variable visc. for no-slip BC's.
674    o recoded the lateral boundary conditions for non-hydrostatic w, this time
675      hopefully without new bugs
676      - still to do: biharmonic friction for non-hydrostatic w
677    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
678    o regenerated output for global_ocean_ebm (using -ieee)
679    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
680      of mom_common/
681      - simple re-arrangement of instructions within computing loop
682    checkpoint53d_pre
683    
684    checkpoint53c_post
685    o new version of coupler for AIM+thSIce and Ocean models
686     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
687     - land: change Evaporation of snow
688     - aim with thSIce: fix bug in snow-precip.
689    o changes to calc_gw.F
690     - bug fix for w^2 term near the bottom boundary
691     - (hopefully) improve the lateral slip boundary condtions for use with
692        partial/looped cells
693      - because the bug fix changes two verification experiments anyway (exp5
694        and plume on slope), change the lateral boundary condition from half slip
695        to the value of no_slip_sides
696    o ebm package wasnt quite up to the parallel task. Fixed that.
697    o Adjoint of EBM package + verification
698      * TLM OK
699      * ADM not sufficient accuracy yet (needs further testing)
700    
701    checkpoint53b_post
702    o Commiting new energy balance model to repository
703      * package is pkg/ebm
704      * verif. is verification/global_ocean_ebm
705      * references are in ebm_driver.F
706    C      * X. Wang, P. Stone and J. Marotzke, 1999:
707    C        Global thermohaline circulation. Part I:
708    C        Sensitivity to atmospheric moisture transport.
709    C        J. Climate 12(1), 71-82
710    C      * X. Wang, P. Stone and J. Marotzke, 1999:
711    C        Global thermohaline circulation. Part II:
712    C        Sensitivity with interactive transport.
713    C        J. Climate 12(1), 83-91
714    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
715    C        Destabilization of the thermohaline circulation
716    C        by atmospheric eddy transports.
717    C        J. Climate 7(12), 1870-1882
718    o Will need long integration testing.
719    checkpoint53b_pre
720    
721    o created pkg/mom_common in preparation for variable viscosity code
722    o renamed and split ini_mnc_io
723    o pkg/land: only liquid water can diffuse or run-off
724    o AIM using land: soil wetness availability account for snow
725    o added printMapIncludesZeros to EEPARMS namelist
726    
727    checkpoint53a_post
728    o restore TAMC compatiility for exf_constants.h
729      (no usage of _d in .h)
730    o Additional storing in KPP in an attempt to fix
731      TAMC problem with adjoint of KPP code.
732      (no success...)
733      Identical code works fine with TAF.
734    o Fixed verification/natl_box_adjoint experiments.
735      Initial conditions for Experiments 4 and 5 are now
736      set to "SEAICE_initialHEFF=0", which is more reasonable,
737      and hence gives results closer to that of Experiment 2.
738      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
739    
740    checkpoint53
741    o stable checkpoint with up to date adjoint
742      TLM tests only run for 1st grdchk at the moment. Its unclear if
743      this is a code problem or a problem with resetting code for g_
744      variables that is being autogenerated wrong.
745      Otherwise:
746       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
747       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
748         are both still in chaos following their security messes.
749    
750    checkpoint52n_post
751    o various build (mostly genmake2) changes including:
752      - ability to build/run more easily within Cygwin and MacOS X
753      - more complicated Makefiles with a stronger dependence on Gnu Make
754    o pkg/seaice modifications
755      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
756        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
757        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
758      - changed proxy for geostrophic velocity and updated
759        verification/lab_sea/results/* accordingly
760      - removed ADI dynamic solver from pkg/seaice
761      - replaced all occurrences of 1/CSTICE or 1/CSUICE
762        they caused a segmentation fault under certain circumstances
763      - removed unused field WATR
764    o bug fix in exf-package:
765      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
766         now reflect that.
767    o small fixes in the cal-package:
768      - set reference date to first of January for the 'model'-calendar
769      - failing of cal_CheckDate in cal_FullDate now actually results in a
770        warning
771    o small modifications in exf-package to increase flexibility:
772      - change climtempfreeze from a constant to a runtime parameter that
773        is specified in data.exf_clim (default = -1.9)
774      - introduce runtime parameter windstressmax (default = 2.0) that is
775        specified in data.exf
776    o fix in pkg/thsice:
777      - update Evap (Tsf changes) to be consistent with Latent heat flux
778      - maintain snow precipitation unchanged (even if Tsf >=0).
779     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
780    
781    checkpoint52m_post
782    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
783      this does not change any of the results, because myIter=0 in swfrac always
784      lead to jwtype=2 (the default anyway), but the call makes little sense
785      as a default
786    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
787    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
788      atmospheric model (AIM) to use it ; add a "slab ocean" component.
789    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
790    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
791    o extending useSingleCpuIO option to work with new exch2 I/O format
792      - old-style, missing-tile I/O is still accessible by defining CPP
793        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
794    o monitor package can write to NetCDF files and/or STDOUT
795    o fix re-definition bug in MNC_GRID_INIT_ALL()
796    o doc/api_reference added
797      - a framework for building an API Reference Manual using all
798        the "protex" comments embedded in the code
799      - see pkg/generic_advdiff, pkg/mnc for examples
800    o MNC:
801      - make myThid the last argument for all subroutines
802      - new default for the grid files: NO halos
803      - add useMNC and other run-time flags
804      - separate per-file-group handling of the unlimited dimension
805      - early initialization of MNC w/ flags read at the eeboot stage
806        and lookup tables set in initialize_fixed
807      - write all MNC output to a freshly-created directory
808    o thermodynamics sea-ice (thsice) is now tested with testreport.
809    o test exp. advect_cs: use the standard cs32 grid ; update output.
810    o Added functionality to grdchk:
811      pick global i,j,k position (or nearest wet) where to perform check.
812    
813    checkpoint52l_post
814    o new land formulation:
815      a) use ground enthalpy as prognostic variable to ensure exact
816         energy conservation.
817      b) account for water temperature and for latent heat of freezing
818         in all processes (rain, run-off, ground storage)
819      c) compute surface and ground temperature implicitly.
820    o aim_v23 modification for new land model:
821      a) Treat separately land / ocean / sea-ice surface fluxes
822         to allow implicit computation of land & sea-ice surface temp.
823      b) add snow precipitation.
824    checkpoint52l_pre
825    
826    o fix problem (when 1 tile is empty) in min/max monitor.
827    o fix bug in timeAve (u,vZetatave in common block)
828    o no restoring terms under ice for pkg/seaice
829    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
830    o bug fix for pkg/seaice pickups
831    o change MNC call locations and add coordinate attributes
832    o mask vorticity at the corner ; affects global_ocean.cs output
833    o fix ini_curvilinear_grid ; test CS experiments with mpi
834    o aim.5l_cs: modify sea-ice fraction input file ; update output
835    o exf: Adding simple range check routine for exf fields after read
836    
837    checkpoint52k_post
838    o removed top-level directory "diags"
839      - we migrated these functions to pkg/timeave a long time ago
840    o fixed bug introduced in pkg/monitor
841    o accuracy ctrlprec = 32 insuffient for gradient checks using
842      averaged fields (I/O via cost_averages)
843      -> use ctrl.h in active_file*.F to control I/O precision.
844    o paramter list of CALL ADTHE_MAIN_LOOP
845    o added initial do_the_model_io to ecco
846    o set all ...Freq to zero after cost_final
847      taveFreq, dumpFreq, pChkptFreq
848    o MAIN and ECCO differentiability restored
849    
850    checkpoint52j_post
851    o fix nchklev in tamc.h for global_ocean...
852    o Bringing flow and store directives up-to-date
853    o Really weird thing!
854      call do_the_model_io from the_main_loop with parameters
855      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
856      TAF places a faulty re-call of initialise_varia
857      after cost_final call which should not be there!
858    checkpoint52j_pre
859    
860    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
861      error messages
862    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
863    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
864      debug output
865    o modfied mdsio_writefield.F to handle non-global files under exch2
866    o update AIM Cubed-Sphere exp (aim.5l_cs):
867      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
868    o update AIM Equatorial Channel exp:
869      use standard aim_v23 pkg and change the SST fields to be more realistic.
870    o globalFile now works with exch2
871    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
872      mon_vort3.F to make exch2 friendly with >1 tile per cube face
873    o limit timeave output for hi-res integrations
874    
875    checkpoint52i_post
876    o removed CPP_EEOPTIONS.h from verification/*/code
877    o updated the tiling for global_ocean_pressure
878    checkpoint52i_pre
879    
880    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
881      the old pkg/aim).
882    
883    checkpoint52h_pre
884    o shortened offending lines in exch2_send_rx?.template
885    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
886    o genmake2: add build & execute test for NetCDF code
887    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
888      old grid files, moved CPP_EEMACROS.h to pkg/exch2
889    o added useSingleCPUIO flag to monitor.F and mon_out.F
890    o added temporary hack for sea-ice dynamics on the cube:
891      metric terms are ignored and it is assumed that
892      there is no sea-ice on cube faces 1, 2, 4, and 5.
893    
894    checkpoint52f_post
895    o added exch2 cube routines to pkg/exch2
896    o modified hs94.cs-32x32x5 to use it
897    o added new grid files to hs94.cs-32x32x5
898    checkpoint52f_pre
899    
900    checkpoint52e_post
901    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
902      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
903    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
904      to work with implicit vertical advection and AB ;
905    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
906    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
907     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
908    checkpoint52e_pre
909    
910    o fix bug in impldiff when Nr=1 or Nr=2.
911    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
912    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
913    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
914      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
915    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
916    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
917    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
918    
919    checkpoint52d_post
920    o re-tiled many expts to allow comparison in multi-processor mode
921      - updated output accordingly
922      - changed hs94.128x64x5 to use intial T from file rather than use the
923        random number generator
924    o add infrastructure in model routines for fizhi and gridalt packages
925    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
926    o changes to permit hi-res, cubed-sphere, configuration
927      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
928      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
929      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
930        of surface winds for the cube
931      (A verification experiment, based on global_ocean.cs32x15, but with
932       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
933       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
934       complete with example surface forcing files and matlab scripts to look
935       at the output and compare it with that of global_ocean.cs32x15.)
936    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
937       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
938       to conform to the common rule.
939    o check-in the first version of the coupler + interfaces for multi-components
940       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
941       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
942       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
943       - ocean and atmos. share the same horizontal grid (no interpolation).
944       - exchanges between component and coupler is done in forward_step
945    o new verification experiment, cpl_aim+ocn:
946       coupled ocean - AIM atmosphere on cs32 grid.
947    
948    checkpoint52d_pre
949    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
950    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
951    
952    checkpoint52c_post
953    o Fixing OPTIONS files for use of exf:
954      - ALLOW_ECCO not needed
955      - ECCO_CPPOPTIONS.h should not be included from
956        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
957        as has been the case in the past
958      - All cal/exf related options are currently set in
959        single header file. Should remain so until we
960        agree on a consistent new policy.
961    o Removed all CPP options for cal package.
962      cal has no more CPP options.
963    o modified STOREs in GAD_ADVECTION
964    o corrected key comp. for passkey
965    
966    checkpoint52b_post
967    o new version: "thsice" of thermodynamic sea-ice pkg:
968     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
969     - modify fluxes but do not change theta directly;
970     - light cleaning of bulk_force pkg (still needed with thsice).
971     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
972       + output_thsice.txt to test thsice & bulk_force pkgs.
973    o put back grid & coriolis monitor output.
974    checkpoint52b_pre
975    
976    o call "do_the_model_io" at the beginning (=> dump initial state)
977    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
978    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
979      (need info on NUMBER_OF_PTRACERS)
980    o missing PTRACERS headers in some routines
981    o default tamc.h in pkg/autodiff supposed to crash
982      to ensure proper customization
983    
984    checkpoint52a_post
985    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
986      - moved surfaceTendencyTice from pkg/seaice to main code
987      - subroutine FREEZE_SURFACE now limits only surface temperature
988        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
989        => new output.txt for global_ocean.cs32x15 & global_with_exf
990      - keep the old version of FREEZE for backward compatibility;
991        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
992      - corresponding modifs for TAF directives
993    o added surface flux output variables to TIMEAVE_STATVARS
994    o time-averaged output for pkg/ptracers
995    o fix problem with ECCO-related divided adjoint
996      snapshot file was missing some ad-variables,
997      but no warning issued by TAF
998    
999    checkpoint52a_pre
1000    o some bug fixes for #undef REAL4_IS_SLOW
1001    
1002    checkpoint52 = ecco_c52_e35
1003    o after testing adjoints of checkpoint51u_post
1004    
1005    checkpoint51u_post
1006    o this is the post-merge tag of the ecco-branch
1007      (needs another clean checkout and re-testing)
1008    o various natl_box_adjoint configs and results
1009      but no input fields
1010    o obcs adjoint not yet merged!
1011    o adding ECCO global 1x1 and 2x2 degree configs
1012    o updated/extended some store directives for seaice
1013    o pkg/ecco now containes ecco-specific part of cost function
1014    o top level routines the_main_loop, forward_step
1015      supersede those in model/src/
1016      previous input data.cost now in data.ecco
1017      (new namelist ecco_cost_nml)
1018    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1019    
1020    checkpoint51t_post
1021    o this is the pre-merge tag of the ecco-branch
1022    
1023    checkpoint51s_post
1024    o cleanup: removed various obsolete #define-s
1025    o pkg/grdchk
1026      - renamed 'ph-grd 3' to 'grad-res'
1027      - merged from ecco-branch
1028        (remaining bug fixes for obcs gradient checks)
1029      - additional high-precision output for testreport
1030        (grep for 'precision_grdchk_result')
1031    
1032    checkpoint51r_post
1033    o cleaned up or removed CPP_OPTIONS.h files
1034    o updated results for some of the tests to reflect the new
1035      optfiles (-ieee: -O0 instead of -O3)
1036    
1037    checkpoint51q_post
1038    o cd_code:
1039      - moved cd_scheme.F -> cd_code_scheme.F
1040      - separate read_checkpoint from cd_code_ini_vars.F
1041      - separated cd_code part from write_checkpoint
1042      - updated AD_SOURCE, generated .flow
1043      - added CD_CODE_VARS.h to the_main_loop
1044      - Moving cd_code specific store dir.s to pkg/cd_code
1045    o ctrl package totally restructured
1046      - pack/unpack now optional and decoupled from
1047        xx_/adxx_ I/O
1048      - ctrl_pack/unpack cleaned
1049        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1050      - confined inclusion of AD_CONFIG.h to where necessary.
1051    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1052    
1053    checkpoint51p_post
1054    o create initial cd_code package
1055      - WARNING: the initialization of fields within packages
1056        is broken because INI_FIELDS (where READ_CHECKPOINT is
1057        called) is called *before* PACKAGES_INIT_VARIABLES.
1058        This seems to be backwards since
1059        1) its important to initially zero the entire field including
1060           the "halo" region
1061        2) zeroing needs to be done *before* reading pickup info
1062           and the pickup call might or might not happen in any
1063           particular run
1064      - this needs an overhaul for R2
1065    o cleanup verification/*/code/GMREDI_OPTIONS.h
1066    o cleanup testreport
1067    
1068    checkpoint51o_post
1069    o bringing AD-related verif's up to date with genmake2
1070      - carbon/
1071      - global_ocean.90x40x15/
1072      - hs.94.1x64x5/
1073      - (front_relax/ )
1074    o (more) consistent directory structure for AD-related verif.'s
1075    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1076    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1077    o bug fix in find_alpha.F for MDJWF:
1078      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1079        change rho -> rho-rhoConst
1080      - replace call find_rho to find_rhonum
1081    o initialisation of rFlx extended to full array (required by TAF)
1082      and shifted to thermodynamics
1083    o removed PTRACERS.h in ptracers routine
1084    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1085    o Correcting initialisations for fVerU, fVerV.
1086    o helping TAF to recognize dependency on kUp for
1087      fVerU, fVerV
1088    o Replacing delZ by delR in pkg/ctrl/
1089    checkpoint51o_pre
1090    
1091    o undid all of cp51 pending some cleanups and discussion
1092    o added the [#include "AD_CONFIG.h"] statement to all files that need
1093       it for adjoint/tl #defines
1094     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1095     o removed tools/genmake since it no longer works
1096    
1097    checkpoint51n_post
1098    o modifications to make FREEZE flux visible to pkg/kpp
1099      - moved surfaceTendencyTice from pkg/seaice to main code
1100      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1101      - subroutine FREEZE now limits only surface temperature
1102        (this means new output.txt for global_ocean.90x40x15,
1103         global_ocean.cs32x15, and global_with_exf)
1104    o added surface flux output variables to TIMEAVE_STATVARS
1105    
1106    checkpoint51n_pre
1107    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1108    o added [#include "AD_CONFIG.h"] to all files that use the following
1109      defines:
1110      - ALLOW_ADJOINT_RUN
1111      - ALLOW_TANGENTLINEAR_RUN
1112      - ALLOW_ECCO_OPTIMIZATION
1113    
1114    checkpoint51m_post
1115    o incorporating changes to get TAMC/TAF working in genmake2
1116      - added new TAMC/TAF targets to the Makefile
1117      - various cleanups related to package handling
1118      - these changes should have no impact on the forward model
1119    
1120    checkpoint51l_post
1121    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1122     - faster algorithm for cal_addtime.F
1123     - higher precision arithmetic, where needed
1124     - pkg/exf *startdate variables changed from calendar date to
1125       model integration time
1126    
1127    checkpoint51l_pre
1128    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1129    o enable to apply restoring on S & T only in a latitude band.
1130    o update output (external_forcing_surf modif. change truncation errors)
1131       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1132    
1133    checkpoint51k_post
1134    o change default to: useNHMTerms=.FALSE.
1135     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1136       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1137     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1138        exp1, ideal_2D_oce
1139     - change data file of oceanic exp (leave the results unchanged for now)
1140       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1141    o set gravitySign automatically according to the vertical coordinate used
1142      (and change sign: back to "logical" value: +1 when R increases downward)
1143    o added an include barrier to the default CPP_OPTIONS.h and
1144      removed the #include "PACKAGES_CONFIG.h" from it
1145    o fix a bug in mom_fluxform (from chk51j_post)
1146    
1147    checkpoint51j_post
1148    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1149    o adjusted some flow directives (dynamics, thermodynamics)
1150    o added cubed-sphere case to test cost function
1151    o heckpoint_lev?_directives.h now include
1152      pkg-specific directives, whenever those are enabled.
1153    o Moving pkg-specific flow directives to corresponding pkg
1154      Moving pkg-specific differentiation list to corresponding pkg
1155      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1156      ---> conventions are
1157           - pkg_ad.flow
1158           - pkg_ad_diff.list
1159           - pkg_ad_check_lev?_dir.h
1160    
1161    checkpoint51i_post
1162    o merge of the branch-genmake2
1163      - knowingly breaks the older genmake
1164      - automatic generation of all ALLOW_${PKG_NAME} defines
1165      - new testreport supersedes older testscript
1166    o large number of package inclusion and header cleanups
1167    checkpoint51i_pre
1168    
1169    o new output for adjoin of global ocean vector invariant
1170    o fix for checkpoint of thermodynamic seaice and bulk_force
1171    o Steph gchem various cleanups
1172    
1173    checkpoint 51h_pre
1174    o fixed some single quotes
1175    o modify gchem pkg to be more versatile
1176    o modifications to clean up dic pkg
1177    o add pkg/cfc
1178    
1179    checkpoint51g_post
1180    o provide links for ARPACK and ADM*TLM
1181    o start removing verification/vero/
1182    o update AD-related stuff
1183      (in particular some IF-statements in model/src/ routines)
1184    o adding to verification/global_ocean.90x40x15/ adjoint of
1185      vector invariant setup
1186    
1187    checkpoint51f_post
1188    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1189    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1190      of tracer Green's fucntions for ocean inversion project.
1191    
1192    checkpoint51f_pre
1193    o Added on-the-fly spatial interpolation capability
1194        "USE_EXF_INTERPOLATION" to pkg/exf.
1195      - This is a temporary Cartesian-grid hack until
1196        the super-duper ESMF coupler becomes available.
1197      - See verification/global_with_exf/README for usage example.
1198      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1199        flags and modified pkg/seaice accordingly.
1200    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1201        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1202        non-local transport term.
1203    
1204    checkpoint51e_post
1205    o pkg/mom_vecinv:
1206      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1207      - add time-ave diagnostic of vorticity advection.
1208    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1209    o atmospheric geopotential: - include water vapor effect;
1210                                - use p^kappa in p* scaling.
1211    o land pkg: read initial state from files.
1212    o AIM : add stratospheric drag in the upper level
1213    
1214    checkpoint51d_post
1215    o change function ILNBLNK (=> last non-blank char.) to return zero
1216      (instead of the string length) when the string. char is empty
1217    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1218    o modif's to restore TAMC compatibility
1219      - avoid "_d" constructs in PARAMETER declarations
1220      - avoid interrupting lines by comment lines
1221    o Use cluster local disks for purely local I/O
1222      vs. globally visible disks needed for ctrl stuff
1223      (merged from ecco-branch)
1224      - new active_file_loc... and mdsio_..._loc routines
1225      - affected packages: autodiff, ctrl, grdchk, mdsio
1226    
1227    checkpoint51c_post
1228    o introducing integer flag debugLevel
1229      - debLevZero: suppress all output
1230      - debLevA: standard
1231      - debLevB: equivalent to current debugMode=.TRUE.
1232    o introducing pathname variable mdsioLocalDir for mdsio
1233      that can be specified at runtime
1234      (relevant for cluster I/O to local disk)
1235    `
1236    >>>checkpoint51b_post
1237    adjoint of ptracers
1238    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1239    o extended state in checkpoint_lev?, etc.
1240    o alternative ctrl/cost with tr1 or ptracer
1241    o new comlev1_bibj_ptracers
1242    o new ptracers.flow
1243    o made ptracers_forcing same as external_forcing_s
1244    o added verification for adjoint with ptracers
1245      - adm. grdchk fail so far
1246      - tlm. grdchk OK
1247      - checked tapelev/comlev recomputations: OK
1248    <<<checkpoint51b_pre
1249    
1250    checkpoint51a_post
1251    o added code for biogeochemistry package
1252      - new pkgs: dic, gchem
1253      - new subroutine in ptracers
1254    o modify code for biogeo packages
1255      - in model/src and pkg/ptracers
1256    
1257    checkpoint51
1258    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1259      - autodiff, ctrl, exf, grdchk, seaice
1260      kept separate packages
1261      - cost, ecco, obcs
1262    o updating verification/internal_wave, verification/lab_sea
1263      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1264    
1265    checkpoint50i_post
1266    o Preparing next differentiable checkpoint and sync
1267      of MAIN vs. ecco-branch
1268      - 1st step: this one is differentiable
1269      - 2nd step: next(! not this) checkpoint will have updated packages
1270                  from ecco-branch)
1271    
1272    checkpoint50h_post
1273    o new package "land": provide surface BC for AIM.
1274    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1275    o AIM: use true log-P extrapolation for near surface temp (= as in
1276        F.Molteni paper) ; update aim.5l_cs output.
1277    o New variable in PARM03 for more flexible pickups
1278    o somewhat cleaned package initialisation sequence for
1279      ctrl/ cost/ ecco/ in packages_... routines
1280    
1281    checkpoint50g_post
1282    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1283      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1284      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1285        made the default because of faster convergence than ADI
1286    
1287    checkpoint50f_post
1288    o exf totally restructured
1289      - replaced all exf_set_ routines by one generic exf_set_gen.F
1290        and made sure it's still differentiable
1291      - split exf_getffields.F into new exf_bulkformulae.F
1292      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1293      - updated adjoint/makefile and relevant verif. accordingly
1294    
1295    checkpoint50f_pre
1296     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1297          + change Evap over land. (update aim.5l_cs output)
1298     o added missing .cvsignores and made uniform across expts
1299     o changed configuration of tidal_basin_2d expt
1300     o added pkg/debug functions for tracing code in fatal crashes
1301     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1302     o new fn in pkg/monitor to stop model if solution grows too big
1303     o removed lots of single quotes from comments
1304    
1305    checkpoint50e_post
1306    o make KPP work with PTRACERS
1307     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1308       nearly a copy of kpp_transport_s
1309     - there is no analogue to SurfaceTendencyS, so I have to use
1310       gPtr(of the surface layer) instead
1311    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1312    checkpoint50e_pre
1313    
1314    checkpoint50d_post
1315    o change kpp output from multiple-record state files to single-record state
1316      files analogous to write_state.F
1317    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1318      analogous to the cg2d-related output.
1319    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1320      so that writing to internal file fn (with length 512) fails.
1321    checkpoint50d_pre
1322    
1323    checkpoint50c_post
1324    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1325    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1326    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1327    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1328    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1329    
1330    checkpoint50c_pre
1331    Merging from release1_p13:
1332    o bug fix for pkg/seaice dynamic solver
1333    o Added SEAICE_initialHEFF to pkg/seaice
1334    
1335    checkpoint50b_post
1336    o store u*,v* in gU,V instead of in guNm1,gvNm1
1337    o in order to put the momForcing out of the Adams-Bashforth:
1338      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1339      to timestep.F
1340    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1341    o re-generate output for highly sensitive test-exp:
1342       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1343    
1344    checkpoint50b_pre
1345    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1346    o corrected CPP option mismatch in exf_Bulk... functions for case
1347      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1348    
1349    checkpoint50a_post
1350    o Bug fix for merging between c50 and KPP.
1351      ikey was passed from thermodynamics to kpp_calc via
1352      common block rather than being recomputed in kpp_calc,
1353      in contradiction with new key itdkey.
1354      New key ikppkey created, and tamc.h headers updated.
1355    
1356    checkpoint50
1357    - 2nd step of merge with ecco-branch:
1358      merge changes in ecco-branch back into main trunk
1359    - bug fix in find_alpha
1360    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1361    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1362    - merged some sliced AD support routines
1363    
1364    checkpoint49
1365    merged from ecco-branch:
1366    o exf:
1367      - Enable initialisation of forcing fields to constant
1368        (runtime) values.
1369      - in exf_getffields.F
1370        Reduce i-/j-loop to interior domain, discarding overlaps.
1371        That also fixes wrong TAF-key computations for key_1, key_2
1372        with bulf formulae.
1373      - exf_init.F modify #ifdef for exf_init_evap
1374      - exf_getffieldrec.F, ctrl_getrec.F
1375        The following INT-usages are not safe:
1376          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1377          fldcount = int(fldsecs/fldperiod) + 1
1378        and were modified.
1379    o autodiff: checkpoint_lev...
1380      - updated storing for bulk formulae (some arrays were missing)
1381      - added state for seaice package
1382      - synchronized with main branch
1383    o DIVA:
1384      Modif.s in
1385      - the_main_loop.F
1386      - the_model_main.F
1387      and added cost_final_restore.F cost_final_store.F
1388      o With these changes, it is possible to fully separate
1389        the first forward run to compute the cost function (mdthe_main_loop)
1390        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1391        into separate model executions.
1392        This enables better tuning of DIVA to given queue sizes.
1393      o Loss of cost function value in consecutive DIVA runs is
1394        fixed by storing to 'costfinal' file.
1395      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1396        beginning/end of adjoint integration is accounted for.
1397      The current changes apply to TAF-1.4.26.
1398      TAF has one remaining bug, requiring one manual change
1399      (see MITgcm manual).
1400    o cal: synchronized between MAIN and ecco-branch
1401    
1402    checkpoint48i_post
1403    o Changes to restore differentiability of code w.r.t. previous tag
1404      (mostly adding new routines to make list and replacing
1405      pressure by totPhiHyd).
1406    o Updated and merged grdchk package
1407      - has both ADM and TLM checks
1408      - works for single- and multi-proc.
1409      - output cleaned
1410      - worked successfully for parallel DIVA
1411    o genmake:
1412      - Adding -platform=SP4
1413      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1414    o Modif. for DIVA:
1415      ctrl_unpack should not be called in intermediate DIVA interval.
1416      (similar thing would apply for active files such as
1417      tbar, sbar, psbar, which should not be reinitialised;
1418      only relevant for ecco-branch)
1419    
1420    checkpoint48h_post
1421    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1422    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1423    o Added SEAICE_initialHEFF to pkg/seaice
1424    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1425    
1426    checkpoint48g_post
1427    --- EOS:
1428    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1429      store total Potential in totPhyHyd for diagnostics & EOS.
1430    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1431    --- Pressure/geopotential gradient:
1432    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1433    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1434      ( changes results of global_ocean_pressure )
1435    o NLFS + z-coord.: add eta*Rho' contribution.
1436    o accurate phiHyd when using interface-W at the middle between 2 centers
1437     ( changes results of ideal_2D_oce )
1438    o includes r* 2nd term in potential gradient.
1439    
1440    checkpoint48f_post
1441    Merging from release1_p12:
1442    o Modifications for using pkg/exf with pkg/seaice
1443      - improved description of the various forcing configurations
1444      - added basic radiation bulk formulae to pkg/exf
1445      - units/sign fix for evap computation in exf_getffields.F
1446      - updated verification/global_with_exf/results/output.txt
1447    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1448      (SBO) core products, including oceanic mass, center-of-mass,
1449      angular, and bottom pressure (see pkg/sbo/README.sbo).
1450    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1451      to avoid negative values in shallow regions.
1452      - updated verification/natl_box/results/output.txt
1453      - updated verification/lab_sea/results/output.txt
1454    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1455    o Added useSingleCpuIO option (see PARAMS.h).
1456    o Updated useSingleCpuIO option in mdsio_writefield.F to
1457      work with multi-field files, e.g., for single-file pickup.
1458    o pkg/seaice:
1459      - bug fix in growth.F: QNET for no shortwave case
1460      - added HeffFile for specifying initial sea-ice thickness
1461      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1462    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1463      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1464    o pkg/seaice:
1465      - adjoint-friendly modifications
1466      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1467    
1468    checkpoint48e_post
1469    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1470    o dynamics: change definition of computational domain & adapt mom_fluxform
1471      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1472    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1473        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1474        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1475        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1476        inverted_barometer solid-body.cs-32x32x1
1477      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1478    
1479    checkpoint48d_post
1480    o in preparation for r*:
1481     a) use pre-computed gradient of hydrostatic potential:
1482        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1483     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1484        => affects results of glob_oce_pressure (different truncation error)  
1485      update output.txt of ideal_2D_oce & global_ocean_pressure
1486    
1487    checkpoint48d_pre
1488    o in preparation for r*:
1489      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1490      pass the 2 comp. of the grad. as arguments to momentum S/R.
1491      but for the moment, only used if it does not change the results.
1492    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1493    
1494    checkpoint48c_post
1495    Modifications in treatment of initial flux forcing controls
1496    to avoid extra storing of flux fields.
1497    
1498    checkpoint48c_pre
1499    o Added tidal_basin_2d experiment (currently 1D!)
1500    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1501    
1502    checkpoint48b_post
1503    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1504     (modification to pressure gradient not yet implemented)
1505    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1506      (for U & V) that are used for vertical advection of momentum.
1507    
1508    checkpoint48a_post
1509    o In preparation for r*, use temp. array to compute vertical transport
1510       in flux-form momentum pkg. => change results of few test-exp.
1511      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1512                        lab_sea, natl_box & plume_on_slope
1513    
1514    checkpoint48
1515    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1516    
1517    checkpoint47j_post
1518    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1519    o moved adexch from forward_step to addummy_in_stepping
1520    o added exch in ctrl_map_...
1521    o aveFreq.=0. at end of cost_final to avoid overwrite in
1522      reverse checkpointing loop
1523    o Yet more changes in gmredi:
1524      * adgmredi_calc_tensor
1525        avoiding all recomputation of gmredi_slope_limit
1526      * adgmredi_x/y/rtransport
1527        added flag for excessive storing to avoid recomp. of
1528        u/v/rtans, dTdx/y/z
1529        -> this is not really necessary and very memory-consuming
1530      * adgmredi_slope_psi:
1531        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1532      * gmredi_slope_limit
1533        re-activated full calculation of taperfct for case 'ac02'
1534    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1535    
1536    checkpoint47i_post
1537    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1538    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1539      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1540    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1541    o gmredi: fix few bugs.
1542    
1543    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1544    This will be a good checkpoint to plug into the ecco-branch.
1545    o few modif.'s to get latest version adjointed
1546      (mainly kick out code in ini_linear_phisurf)
1547    o modif's to run adjoint with exactConserv
1548    o case GM_BOLUS_ADVEC should be cleaned
1549      S/R gmredi_slope_psi should be cleaned
1550    o verification/carbon now has exactConserv=.TRUE.
1551    
1552    checkpoint47g_post
1553    o time-average AIM output: becomes independent from statvars time-average
1554      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1555    o After TAF bug fix:
1556      Tested adjoint of gmredi package.
1557      Tests were done with checkpoint47 rather than with latest
1558      checkpoint47f_post since the latter is broken for the adjoint
1559      verification/carbon/ contains both ADM and TLM gradient checks.
1560    Here they are, before they get changed/lost/stolen.
1561    Mostly modif.'s to fix numerical sensitivities.
1562    Gradient checks OK for
1563    - GM_taper_scheme:
1564      * clipping
1565      * ac02
1566      * linear
1567      * glw91
1568      * dm95
1569      * ldd97
1570    - GMREDI_OPTIONS:
1571      * GM_VISBECK_VARIABLE_K
1572      * GM_NON_UNITY_DIAGONAL
1573      * GM_EXTRA_DIAGONAL
1574      * GM_BOLUS_ADVEC
1575    in conjunction with data.gmredi parameters to be checked in
1576    in a few minutes under verification/carbon/code/
1577    
1578    checkpoint47f_post
1579    Merging from release1_p10:
1580    o modifications for using pkg/exf with pkg/seaice
1581      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1582        and SEAICE_EXTERNAL_FLUXES
1583      - pkg/exf CPP options EXF_READ_EVAP and
1584        EXF_NO_BULK_COMPUTATIONS
1585      - usage examples are Experiments 8 and 9 in
1586        verification/lab_sea/README
1587      - verification/lab_sea default experiment now uses
1588        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1589    
1590    checkpoint47e_post
1591    o created a tag prior to creating a branch
1592    
1593    checkpoint47d_post
1594    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1595      at the bottom boundary had an erroneous half slip boundary condition
1596    o added bottom drag and no slip boundary condition capabilities to
1597      oceanic pressure coordinates code
1598    o added new verification experiment global_ocean_pressure, this experiment is
1599      also described in the tutorial section of the manual
1600    checkpoint47d_pre
1601    
1602    checkpoint47c_post
1603    o Added a verification experiment for a global cubed-sphere ocean run
1604      -  verification/global_ocean.cubed32x32x30
1605      -  uses pkg/therm_seaice and pkg/bulk_forcing
1606    
1607    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1608    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1609      when using P-coordinate; only implemented for atmospheric config.
1610    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1611      NOTES: requires option NONLIN_FRSURF to be "#define".
1612    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1613    
1614    checkpoint47b_post
1615    Merging from release1_p9:
1616    o pkg/seaice
1617      - removed GOTO's and added taf directives
1618      - double precision constants to reduce the g77 (Linux)
1619        to F77 (SGI) differences reported in release1_p8
1620    o tools/genmake
1621      - added SGI options
1622    o verification/testscript
1623      - updated to that of checkpoint47a_post
1624    o verification/global_ocean.90x40x15/input/eedata
1625      - modified for SGI f77 compatibility
1626    o verification/lab_sea
1627      - added description of sea-ice model
1628      - added missing matlab routines
1629      - added test of thermodynamics parallelization
1630    
1631    checkpoint47a_post
1632    o new pkg: aim_v23
1633     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1634       for now, keep the same surface forcing as before.
1635     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1636     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1637     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1638    o add diagnostic of surface correction term in monitor output
1639    
1640    o bulk_force and therm_seaice
1641    - Two packages:  bulk_force (Bulk forcing)
1642      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1643    - Earlier integration from Stephaine Dutkiewicz
1644      and Patrick Heimbach.
1645    - Two ifdef statements for compile time,
1646       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1647    
1648    checkpoint47
1649    differentiable version of checkpoint46n_post
1650    o bug fix in quasihydrostaticterms
1651    o * "clean" adjoint code (in terms of extensive recomputations)
1652        can now be obtained for all GMREDI options (i.e. for
1653        - GM_VISBECK_VARIABLE_K
1654        - GM_NON_UNITY_DIAGONAL
1655        - GM_EXTRA_DIAGONAL
1656        - GM_BOLUS_ADVEC )
1657      * However, wrong gradient check problem remains unsolved.
1658      * New CPP options have been introduced for different
1659        tapering schemes
1660    o external_fields_load now part of differentiation list
1661    o pressure needs multiple storing;
1662      would be nice to have store_pressure at beginning or
1663      end of forward_step, e.g. by having phiHyd global (5-dim.)
1664      (NB: pressure is needed for certain cases in find_rho,
1665      which is also invoked through convective_adjustment).
1666    o recomputations in find_rho for cases
1667     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1668    o #define ATMOSPHERIC_LOADING should be differentiable
1669    o ini_forcing shifted to begining of initialise_varia
1670    o Incorporating QNVS line search routines into MITgcm
1671      (this is separate code, and therefore not under pkg)
1672      lsopt/, optim/
1673    o Updated verification/carbon/
1674      - #define GM_VISBECK_VARIABLE_K
1675      - GM_taper_scheme    = 'ldd97'    
1676    
1677    checkpoint46n_post
1678    Merging from release1_p8:
1679    o verification/natl_box:
1680      updating new external_fields_load routine
1681    o New package: pkg/seaice
1682      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1683      The sea-ice code is based on Hibler (1979-1980).
1684      Two sea-ice dynamic solvers, ADI and LSR, are included.
1685      In addition to computing prognostic sea-ice variables and diagnosing
1686      the forcing/external data fields that drive the ocean model,
1687      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1688      The implied surface heat flux is then stored in variable
1689      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1690      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1691      non-local transport term.  Because this call precedes model
1692      thermodynamics, temperature under sea-ice may not be "exactly" at
1693      the freezing point by the time theta is dumped or time-averaged.
1694      N.B.: fairly large differences in accuracy occur across
1695            different platforms/compilers; comparison between
1696            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1697            generated output gives:
1698       T           S           U           V
1699      C D M    c        m  s        m  s        m  s        m  s
1700      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1701      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1702      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1703    
1704      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1705    o GAD:
1706      - generated new common blocks to account for call of
1707        same gad routines with differing traceridentities
1708        (needed to modify tracerIdentity indices in GAD.h)
1709      - generated separate common blocks for case useCubedSphereExchange
1710        (Department of Futurology)
1711      - parameter lists to gmredi_?transport: added tracerIdentity
1712      - added new key indices to tamc.h
1713    o external_fields_load:
1714      - added this routine to TAF list
1715      - needed to make some common blocks global and additional storing
1716        along the same lines as exf package (checkpoint_lev?_directives.h)
1717    o exf:
1718      updated external forcing package
1719      - bug fixes carried over from ecco-branch
1720        (missing OBCS_OPTIONS.h in two routines)
1721      - enable easy to use "no forcing".
1722      - added exf I/O for atmospheric loading
1723      - added exf I/O for runoff data
1724      - transfered scaling between exf <-> MITgcm to exf namelist
1725    o Adding new verification experiment global_with_exf.
1726      This verification experiment is almost identical to the
1727      global_ocean.90x40x15 experiment, except that it uses
1728      the exf (and cal) package instead of the
1729      external_fields_load routine (cf README file).
1730    
1731    checkpoint46m_post
1732    o modified testscript to return -- when there are no lines of "%MON" output
1733    o added new flag "quasiHydrostatic" for QH mode
1734      and new routine quasihydrostaticterms()
1735    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1736      New routine: mom_u_coriolis_nh()
1737    o fixed sign of non-hydrostatic metric terms in u and v equations.
1738      Depend on correct sign of gravitySign.
1739    o added work.pc* to .cvsignore in aim directories using ifc
1740    o introduced flag for controllin non-hydrostatic metric terms
1741    o removed gravitySign from PARM04
1742    o switched to g77/ifc from pgf77 in aim experiments
1743    
1744    checkpoint46l_post
1745    o made convective adjustment work with pressure coordinates:
1746     - changed the direction of k-loop in convective_adjustment.F for the
1747       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1748     - adjusted the reference pressure k-index in convective_adjustment.F
1749     - adjusted the convection condition in convect.F (in analogy to
1750       calc_ivdc.F)
1751     - convective_adjustment no longer computes anything on the halos
1752     - removed the warnings about negative salinity from find_rho.F and
1753       find_alpha.F; instead the new routine look_for_neg_salinity, called
1754       at the beginning of find_rho, find_alpha, and find_beta, does a
1755       check of the entire slice, if CPP-option
1756       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1757    checkpoint46l_pre
1758    
1759    checkpoint46k_post
1760    o fixed the verification/global_ocean.90x40x15 experiment:
1761     - new bathymetry (the world according to A., JMC, and M.)
1762     - new initial fields and forcing fields (*.bin files)
1763     - new POLY3.COEFFS (for the next release one should switch to a full
1764       equation of state: JMD95P or MDJWF)
1765     - fixed several errors and redundancies in the data file
1766     - experiment uses looped cells
1767     - added matlab directory with diagnostic scripts for plotting of output
1768    
1769  o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:  o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1770   - read AIM physics parameters from a file (data.aimphys)   - read AIM physics parameters from a file (data.aimphys)
1771   - set defaults values = F.Molteni paper (Clim.Dyn., 2002)   - set defaults values = F.Molteni paper (Clim.Dyn., 2002)

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