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revision 1.85 by heimbach, Mon Sep 16 18:23:22 2002 UTC revision 1.503 by jmc, Wed Jun 22 00:51:05 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 remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
8    o add Sadourny like discretization to the 4th.O vorticity advection scheme
9    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
10      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
11         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
12    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
13     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
14    
15    checkpoint57i_post
16    o Diagnostics package was changed: diagnostic allocation is now deactivated
17      by setting an empty file name in the namelist (used to be by setting 0 frequency)
18    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
19      add 1rst Order upwind vertical Shear.
20    o add a quick fix for A/B checkpointing in OFFLINE mode
21    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
22      end-run around the C/Fortran linking horror in eesup/src/timers.F
23    o added pkg/runclock: allows user to terminate run based on wall clock
24    o added non-hydrostatic scaling parameter: nh_am2
25    o pkg/my82: futile attempt to make results compiler-independent by adding
26      some "_d 0", etc. no effect.
27    o for mnc output, fill the 'T' coordinate var with myTime and create a
28      separate 'iter' variable for iteration count
29    o pkg/diagnostics:
30      add new capability: output of Global/Regional & per-level statistics ;
31      tested against monitor output (including land & thSIce) on various exp.
32    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
33    
34    checkpoint57h_done
35      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
36      data.diagnostics, data.gchem, data.ptracers) is done.
37    
38    o pkg/diagnostics: prepare for Global/Regional statistics.
39      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
40    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
41      and rename it: DIFFERENT_MULTIPLE
42    
43    checkpoint57h_post
44    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
45    o pkg/diagnostics: change output frequency, now in seconds (instead
46      of Nb of iterations). This requires to change data.diagnostics.
47    checkpoint57h_pre
48    
49    o in mnc, let the user create the output dir if both mnc_outdir_date
50      and mnc_outdir_num are false
51    o add fflags() to pkg/diagnostics which allows one to specify, on a
52      per-file basis, the file precision [default behavior is unchanged]
53    o added diagnostics to pkg/kpp, including computation of mixed layer
54      depth based on a temperature/density criterion
55    o updated verification/natl_box to test the new pkg/kpp diagnostics
56    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
57    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
58    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
59      not mnc -- this mistake was found by JMC and is now corrected
60    
61    checkpoint57g_post
62    o add Adams-Bashforth 3rd Order time stepping:
63      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
64      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
65    checkpoint57g_pre
66    
67    o make lambda[Theta,Salt]ClimRelax spatially varying
68      (default remains spatially uniform constant based on tau)
69    o added new control variables
70      * init. uVel, vVel, etanN
71      * lambda[Theta,Salt]ClimRelax
72    o separate masks used for ctrl_pack/unpack 'from write_grid' output
73      (suggested by G. Forget)
74    
75    checkpoint57f_post
76    o add parameter "baseTime" = model base time = time at iteration zero
77      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
78      account for baseTime shift
79    o move Coriolis arrays from PARAMS.h to GRID.h
80    checkpoint57f_pre
81    
82    o mnc-ifying the seaice package
83    o introduced an alternative length scale calculation for use in the limiting
84      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
85    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
86    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
87      as well as grad(vort3).  Made it compatible with both approximate form
88      for the cubed sphere and full form of these gradients.  Added flag
89      useFullLeith to select between approximate and full form.  
90    o add "d0" in getcon.F to reduce differences between compilers/platforms
91      update output.txt of exp. fizhi-gridalt-hs
92    o change port_rand funtion to allow to set the seed.
93    o fix obscure MNC bug involving conversion between reals and integers
94      - it caused no problems with certain (eg. gcc, ifc) compilers but the
95        new version is now more standards-compliant
96    o adjoint-related modifications
97      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
98      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
99      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
100    
101    checkpoint57e_post
102    o Adding eddy stress controls a la Ferreira et al.
103    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
104    
105    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
106      update output.txt of exp. fizhi-gridalt-hs
107    o add more "Z" dimensions and associated coordinate vars to MNC
108    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
109    o parameter calendarDumps: when set, approximate months (30-31 days) and years
110      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
111      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
112      months and years.  Requires pkg/cal.
113    o diagnostics: add pickup functionality
114      - off by default for backwards compatibility
115      - current version only uses MDSIO -- MNC will be added
116    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
117    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
118    
119    checkpoint57d_post
120    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
121    o modify verification/ideal_2D_oce so that it tests the creation of mnc
122      output from the diagnostics package
123    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
124    o make genmake2 more portable by using ".$FS" instead of ".f" for more
125      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
126    o add coordinate variables to the MNC output from the diagnostics package
127    o change MNC-flags default value: true when useMNC=TRUE
128    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
129      the ability (off by default) to read the grid information using MNC
130    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
131    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
132    o do snap-shot diagnostics at the middle of the time-interval (instead of
133      at the end).
134    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
135      new test for AIM with thSIce + slab-ocean
136    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
137    o move state variable diagnostics to the beginning of the time step ;
138      (note: still needs some work specially for snap-shot diagnostics)
139      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
140    
141    checkpoint57c_post
142    o Change testing option (-ieee) to get closer agreement between g77 & ifort
143    o generate new output.txt files on faulks with g77 & the new -ieee option
144    checkpoint57c_pre
145    
146    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
147      update output.txt of exp. global_ocean.90x40x15
148    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
149      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
150    o add saltFlux(+File) forcing capability with periodicExternalForcing
151    o allow to use pkg diagnostics for GM-Redi & ThSIce output
152    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
153    o improvements for the MNC output from DIAGNOSTICS:
154      - correct handling of the unlimitied dimension
155      - all dims now have associated coordinate variables
156      - variables located at U, V, and Corner ("Z") points are now written
157        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
158        *all* data points are output
159    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
160    o added pkg/seaice/seaice_monitor.F
161    o mdsio_readfield.F can now read files visible only to master MPI process.
162    o pkg/seaice: some test code for ice-modified ocean stress
163    o exf_getffields interpolation defaults to bilinear for all scalar forcing
164      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
165      spurious negative numbers for precipitation and humidity.  Will cause
166      some small numerical differences for integrations using pkg/exf/exf_interp.F.
167    o pkg/ctrl/
168      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
169        May be enabled via doPackDiag
170      *  introduce z-scaling of
171         + gradient (doZscalePack) and
172         + control (doZscaleUnpack)
173    o pkg/mdsio/
174      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
175      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
176    
177    checkpoint57b_post
178    o simplify options in diagnostics_fill arguments (remove weird combinations)
179    o fix MNC coordinate variables so that they now contain per-face index
180      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
181      general, EXCH2 grids are only aligned to a "local" coordinate system
182    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
183    o Implement instantaneous output within pkg diagnostics:
184      setting a negative frequency in data.diagnostics produces
185     "snap-shot" output (as opposed to time-average if freq > 0)
186    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
187      NOTE: change ptracer diagnostics name: use 2 characters to work with
188            more than 9 tracers. Add also diagnostics of advect & diffus flux.
189    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
190      becomes the coordinate variable for the 'T' dimension
191    o add CF-style coordinate variables to MNC
192      - just a first cut:  numbers are meaningless on the cubesphere and
193        missing along the T axis but otherwise it works!
194    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
195    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
196    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
197      this is based directly on what the model compute, so that the content of
198      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
199    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
200    o clean up build options files for SunOS, in particular
201      - remove -traditional from xmakedepend
202      - change -xarch=v9 to -xarch=native for f77
203      - restore use of make (not gmake)
204      - add CC=gcc if using g77
205    o changes per discussion of AM, JMC, & EH3 today:
206      - move redundant "grid" variables out of "state" -- in preparation of
207        creating proper CF-style coordinate variables and in recognition
208        that any/all grid variables can be easily copied (eg. w/NCO) from
209        the grid files into any of the other NetCDF files
210      - *always* output grid variables with MDSIO (this will eventually be
211        changed)
212      - output MNC grid file if useMNC is true
213    o every instance of _END_MASTER() has been found and replaced with
214      _END_MASTER( myThid ) in order to satisfy certain picky Sun
215      preprocessors
216    o re-arrange diagnostics pkg initialisation:
217     - allow each package to extend the available diagnostics list
218     - add some checking and fix small problems (multi-threaded, ...)
219     - new S/R diagnostics_fill (replace fill_diagnostics):
220       look through the short list of active diag. (instead of the long list)
221       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
222    
223    checkpoint57a_post
224    o this set of changes restores TAMC compatibility
225      tested for global_ocean.90x40x15 adjoint on trough
226      (what a pain)
227    
228    checkpoint57a_pre
229    o some modifs in tools/build_options for sunos
230    o call ctrl_pack for ctrl at end for optimcycle=0
231    
232    checkpoint57
233    o add horizontal bi-harmonic viscosity for vertical velocity
234      - new parameter viscA4W (defaults to viscA4)
235      - affects only non-hydrostatic code
236      - to be done: no-slip lateral boundary conditions
237    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
238    o implement Implicit Vertical advection for pTracers
239    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
240      (implemented also for implicit vertical diffusion & advection)
241    o OBCS: extend application of tracer open boundary conditions
242      to a strip beyond the boundary of width Olx/Oly
243    o add call monitor to TAF set of required calls (flow directives)
244      and include in natl_box_adjoint
245    o untangle a few ifdefs related to cost, ctrl, autodiff
246      untangel a few ALLOW_ECCO_OPTIMIZATION
247    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
248      (theta2, salt2 in ecco_cost_weights)
249    
250    checkpoint56c_post
251    o OBCS as control variables
252      - update ctrl_ad_diff.list, obcs_ad_diff.list
253      - remove balance of obcs controls from default
254      - fix index bug nobcs in ctrl_init
255      - fix dummy fields filen in ctrl_pack
256      - add dummy weights for obcs
257    o lsopt: comment out fort.94 output
258    o optim:
259      - remove unnecessary header files
260      - adjusted namelists
261      - add xerbla.F to Makefile
262    o exf:
263      - multiple modifications of exf_check_range
264      - unit change in exf_init_runoff from [m/year] to [m/s]
265    o mdsio:
266      - i/o-vector change debugLevel from debLevA to debLevB
267    
268    checkpoint56b_post
269    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
270      is called from DO_THE_MODEL_IO
271      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
272      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
273      - clean up PTRACERS_WRITE_TIMEAVE a little
274    o add another verification experiment that tests both the cfc-pkg and
275      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
276      reactive tendencies treated inline with regular timestepping
277    o testreport previously did a lousy job of comparing small numbers, so
278      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
279      implemented in the little c-progam tmp_cmpnum.c which is embedded in
280      testreport.
281    o ptracers_monitor: bug fix for MPI
282    
283    checkpoint56a_post
284    o GCHEM: finish reorganizating the package
285      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
286        (introduces another 3D-array for each passive tracer, but only if
287        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
288        gchemTendency is not needed because the timestep is done separately)
289      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
290      - GCHEM is now---more or less cleanly---separate from PTRACERS
291      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
292        so clear to me how that should be done in a general way.
293    o CFC: improve formatting of output in CFC_ATMOS
294    o PTRACERS:
295      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
296        that ALL experiments with ptracers enable can be checked. This makes
297        GCHEM_MONITOR obsolete.
298      - include a runtime parameter PTRACERS_monitorFreq that defaults to
299        monitorFreq
300      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
301    o add PTRACERS (PTR0[1-5]) to testreport output
302    o exf_check_range:
303      * default changed to .TRUE.
304      * will check values for niter0 if debLevA, every timestep if debLevB
305      * STOP in exf_check_range if 'out of range'
306      * range chosen generous to allow for potential extema
307      TBD: a version with stricter range
308           permitted range would be runtime parameters
309    o GMredi:
310      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
311      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
312      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
313    o GCHEM:
314      - move call to GCHEM_FORCING_SEP, so that it is now called before
315        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
316      - introduced a useGCHEM runtime flag and applied it everywhere.
317      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
318        this flag is now only visible within GCHEM-pkg routines.
319      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
320        be replaced by a 3D array that is computed before thermodynamics; for
321        this, the tracer ID iTracer had to be included into the parameter list
322        of ptracers_forcing
323      - set up forward_step to call gchem_forcing, that will replace
324        gchem_forcing_int in ptracers_forcing
325      - cleaning up
326    o small cleaning of exch2: remove files that are also in eesupp/src
327    
328    checkpoint56
329    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
330    o mnc: cleanup "full" files--fixes out-of-memory problem
331    o ECCO-GODAE
332      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
333      * fully merged and updated from SIO code
334        windstress sign change affects
335        - exf_inscal_[u/v]stress
336        - sign of xx_tau[u/v] adjustments
337        - signs in cost_scat
338      * ctrl_get_gen: avoid update of tau[u/v] for first few days
339      * natl_box_adjoint updated and compressed
340      * 2-level checkpoint switch added
341        (tested in EXP. 1 of natl_box_adjoint)
342      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
343    o SVD
344      * first complete, non-hacked version for SVD calculations
345      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
346        performed via direct access files admtlm_vector.it????
347        (via ctrl_[un]pack)
348      * optimcycle is used for ARPACK iteration counter
349        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
350      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
351        and add linear transforms where necessary
352      * controls are initial/final SST, SSS (can be extended; need to check
353        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
354    o mdsio: filename info to both stderr, stdout
355    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
356      from sign change
357    
358    checkpoint55j_post
359    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
360      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
361    o add consistent build directories and .cvsignore files to verification
362    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
363    o make all subroutines 30 or less characters in length for certain older
364      compilers to work (a thorough search only turns up two routines in
365      pkg/ptracers)
366    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
367      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
368    
369    checkpoint55i_post
370    o change arrays for total vertical diffusivity (2.D if explicit,
371      3.D if implicit) ; each ptracer uses its own background value.
372    o added mnc/NetCDF output capability to ocn_compon_interf
373      - added bits to verification/cpl_aim+ocn so that it can run on
374        ITRDA and other clusters without the mpirun "-wd" option
375    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
376      configuration
377    o give MNC the ability to create additional files rather than
378      exceeding a specified file size limit "MNC_MAX_FILESIZE"
379      - the default is just less than 2GB which is a practical limit
380        on many systems
381    o Compute the non-local term using either KPP vertical diffusivity (=default)
382       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
383    
384    checkpoint55h_post
385    o add verification test "vermix"
386    o remove all the *_ioinc flags and replace with the single global
387      outputTypesInclusive flag
388    o allow to set a vertical profile of vertical diffusivity for T & S
389    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
390    o useMNC moved from data.mnc to data.pkg
391    
392    checkpoint55g_post
393    o Renaming carbon AD experiments to comply with testreport conventions
394    o Updating adjoint of Held-Suarez hs94.1x64x5
395    o Fixing directives for non-ECCO forward_step, after ECCO directives
396      have been fixed to avoid recomp. of do_oceanic_phys
397      Works well for global_ocean.90x40x15,
398      but recomp. issue remains for carbon
399    o Updating adjoint output for natl_box_adjoint after
400      pkg/ecco has been modified (see taga c55d_post)
401    
402    checkpoint55f_post
403    o rename to timeave_init_fixed
404    
405    checkpoint55e_post
406    o some delicate re-shuffle of store directives to avoid one
407      extra call of do_oceanic_physics
408      affects ecco_the_main_loop.F, do_oceanic_physics.F
409      checkpoint_lev1_directives.h
410    o NB: this may break global_ocean adjoint temporarily,
411      but it is clear how to fix it. Will do later, need this now.
412    
413    checkpoint55d_post
414    o ECCO specific cost function terms (up-to-date with 1x1 runs)
415    o ecco_cost_weights is modified to 1x1 runs
416    o modifs to allow observations to be read in as
417      single file or yearly files
418    o enable to read exf forcing fields as either
419      single file or yearly files (flag useExfYearlyFields)
420    checkpoint55d_pre
421    
422    o switch between 2-level and 3-level checkpointing
423    o add ability of MNC to write local and "partial" (eg. 2D slices where
424      the full 3D field is never actually stored) arrays to NetCDF files
425      with the correct (that is, the complete multi-dimensional) set of
426      array indicies
427      - used in mom_vecinv() to write the diagFreq output
428      - tested (demonstrated) in verification/aim.5l_cs
429    o further mnc-ification
430      - add verification/lab_sea to the list with mnc setups
431      - fix undefined mnc v-names in cd_code
432      - add kpp to mnc output (both snapshot and timeave)
433    o non-hydrostatic code
434      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
435        in calc_gw.F
436      - defaults to viscAh
437      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
438        friction or Leith) in non-hydrostatic mode, as long as there is
439        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
440    o pkg/cost
441      extend simple cost functions to treat time mean quantities
442      (T,U,V) via cost_accumulate_state from cost_tile
443    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
444        be 2 times larger than the minimum size the advection scheme requires.
445        now get a perfect conservation of salt in advect_cs test-exp (updated)
446    o GGL90 (Gaspar's TKE mixed layer)
447      - add horizontal diffusion of TKE, requires exchanges in
448        do_fields_blocking_exchanges, horizontal diffusivity is zero by
449        default. In OPA there is no horizontal diffusion of TKE but the
450        mixing coefficients are computed from a horizontal average of TKE of
451        6 points or so. I think that diffusion has a little more physical
452        justification.
453      - clean up ggl90_calc in the hope of reducing memory usage (this hope
454        was in vain)
455      - mask tke-variable in ggl90_init
456    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
457    o fix biharmonic diffusion on CS-grid.
458    o more obcs stuff
459      - added obcs_external_fields_load as an alternative to the EXF-pkg option
460        for reading boundary values. This routine is called from
461        obcs_prescribe_read
462      - updated obcs_check
463      - changed sponge layer relaxation parameter units for days to seconds
464      - turned off sponge layer by default
465      - changed argument list of OBCS_CALC to myTime+deltaTclock
466      - fixed about 35 bugs in obcs_external_fields_load
467    
468    checkpoint55c_post
469    o obcs stuff
470      - new runtime flags useOBCSprescribe, useOBCSbalance
471      - re-arranged obcs_calc
472      - moved exf_getobcs to obcs_prescibe_read
473        obcs_prescibe_read is called after ORLANSKI stuff
474        and independent of it (executable can contain all).
475      - updated obcs_check
476      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
477        These may be necessary only if tangential velocities are
478        prescribed at OB, not sure, needs testing.
479    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
480      which simplifies the calls and passes the ifc check-bounds test
481    
482    checkpoint55b_post
483    o add a 2D scalar, Z location, exchange_2 routine.
484    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
485      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
486      affects advect_cs results (for the wrong reason): update output.txt
487    o use a more standard discretization for biharmonic viscosity ;
488     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
489      affects results of dome set-up: update output.txt
490    o fix gad_advection.F (CubedSphere part), back to version 1.23
491    o fix bug in mom_vi_del2uv.F (CubedSphere part).
492    
493    checkpoint55a_post
494    o merged code to
495      * prescribe/read time-dependent open boundaries
496        (works in conjunction with exf, cal)
497      * sponge layer code for open boundaries
498      * each boundary N/S/E/W now has its own CPP option
499        (healthy for the adjoint)
500    
501    checkpoint55
502    o up-to-date adjoint of previous breaks
503      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
504      - global_ocean_ebm: adjoint still needs fix (TLM ok)
505      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
506      - carbon: * remove tr1-related adjoint verification
507                * add ptracer as control variable
508    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
509      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
510    
511    checkpoint54f_post
512    o in verification/carbin/ remove experiment related to
513      ALLOW_PASSIVE_TRACER (array tr1 etc)
514      code_ad/ input_ad/ results_ad
515    
516    o add two new packages
517      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
518        + subject to optimization (memory)
519      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
520        + subject to reordering (many GOTOs in the original code)
521        + so far opps is called for every (i,j) point, and then operates in
522          the vertical; one may want to reorder the scheme in order operate in
523          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
524          fields)
525    o overhaul of IO so that we now have flags for MDSIO and/or MNC
526      - all verification tests compile and run with linux_ia32_g77
527      - defaults are compatible with current input files--nothing
528        should change if you were not previously using MNC
529      - MNC output has been added in numerous places (eg. timeave)
530        but there are still a few writes not yet do-able with MNC
531        (this is in progress)
532      - flags now allow for either/or/both use of MDSIO and MNC and
533        documentation will soon follow
534      - numerous small formatting cleanups for ProTeX
535    o add version info (via BUILD_INFO.h) to MNC and stdout
536    
537    checkpoint54e_post
538    o add two new packages
539      - pp81 (Packanowski and Philander, 1981), Richardson number and
540        stratification dependent mixing
541      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
542      - these scheme operate in a similar manner as KPP (without ghat, of
543        course), however there is only one diffusivity that is used for both
544        temperature and salinity (and passive tracers)ç
545    o add offline package
546    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
547      provided by Stephanie Dutkiewicz
548    o genmake2: add ability to search for C compilers and cleanup test output
549      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
550    
551    checkpoint54d_post
552    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
553    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
554      leading to additional shift by 5 days each year of integration
555       (i.e. leading to considerable offset over the years)
556    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
557    o start with no AB and no initial filtering (staggerTimeStep):
558      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
559    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
560      (external loading & cpl import/export stay in forward_step.F)
561    o update coupling interface to work with new staggerTimeStep
562    o change MDSIO ptracers_pickup.
563    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
564    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
565    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
566    
567    checkpoint54c_post
568    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
569      this affects (truncation error) output.txt of test-exp:
570       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
571    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
572    o change Qnet to always be the net heat flux, (+upward).
573      affects (truncation error) output of natl_box exp.: updated
574    o define the max number of passive tracers in PTRACERS_SIZE.h
575    o start to test mnc routinely in exp0
576    o add sea-ice loading (sIceLoad) as a new forcing field.
577    
578    checkpoint54b_post
579    o add testreport "-j JOBS" option for parallel builds (tested and pretty
580       impressive on Altix and Opteron systems)
581    o diagnostics can now write NetCDF files through the mnc package
582    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
583    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
584    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
585      affects (truncation error) output of lab_sea & natl_box exp.: updated
586    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
587    
588    checkpoint54a_post
589    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
590    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
591    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
592    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
593      + internal_wave (shift in writing cg2d_ini_res)
594    checkpoint54a_pre
595    
596    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
597      - modified verification/lab_sea and natl_box_adjoint accordingly
598    
599    checkpoint54
600    checkpoint53g_post
601    o prepare splitting of thermodynamics: store convect.counter in common block
602    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
603      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
604    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
605    o new parameter "nShapS": allow to treat differently S from T (nShapT)
606    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
607    o restore adjointability
608    
609    checkpoint53f_post
610    o modifications that affect AIM experiment results (update output.txt):
611      - no advection of S at top interface Nr (pkg/generic_advdiff)
612      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
613    o AIM pkg:
614      - include stability function into surf.Flux derivative relative to Tsurf
615      - calculate clear-sky radiation & surface temp. change (for diagnostics)
616    
617    checkpoint53e_post
618    o merged cylindrical coord configuration
619    o added rotating_tank experiment
620    checkpoint53e_pre
621    
622    checkpoint53d_post
623    o faulks upgraded: re-generate output.txt that have changed:
624       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
625    o Added Bryan and Lewis, 1979, vertical diffusivity profile
626    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
627    o added Sadourny discretization of Coriolis
628      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
629      - re-enabled use of omega3 (useAbsVorticity)
630    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
631      vector-invariant equations
632      - note: does *NOT* yet use same variable visc. for no-slip BC's.
633    o recoded the lateral boundary conditions for non-hydrostatic w, this time
634      hopefully without new bugs
635      - still to do: biharmonic friction for non-hydrostatic w
636    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
637    o regenerated output for global_ocean_ebm (using -ieee)
638    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
639      of mom_common/
640      - simple re-arrangement of instructions within computing loop
641    checkpoint53d_pre
642    
643    checkpoint53c_post
644    o new version of coupler for AIM+thSIce and Ocean models
645     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
646     - land: change Evaporation of snow
647     - aim with thSIce: fix bug in snow-precip.
648    o changes to calc_gw.F
649     - bug fix for w^2 term near the bottom boundary
650     - (hopefully) improve the lateral slip boundary condtions for use with
651        partial/looped cells
652      - because the bug fix changes two verification experiments anyway (exp5
653        and plume on slope), change the lateral boundary condition from half slip
654        to the value of no_slip_sides
655    o ebm package wasnt quite up to the parallel task. Fixed that.
656    o Adjoint of EBM package + verification
657      * TLM OK
658      * ADM not sufficient accuracy yet (needs further testing)
659    
660    checkpoint53b_post
661    o Commiting new energy balance model to repository
662      * package is pkg/ebm
663      * verif. is verification/global_ocean_ebm
664      * references are in ebm_driver.F
665    C      * X. Wang, P. Stone and J. Marotzke, 1999:
666    C        Global thermohaline circulation. Part I:
667    C        Sensitivity to atmospheric moisture transport.
668    C        J. Climate 12(1), 71-82
669    C      * X. Wang, P. Stone and J. Marotzke, 1999:
670    C        Global thermohaline circulation. Part II:
671    C        Sensitivity with interactive transport.
672    C        J. Climate 12(1), 83-91
673    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
674    C        Destabilization of the thermohaline circulation
675    C        by atmospheric eddy transports.
676    C        J. Climate 7(12), 1870-1882
677    o Will need long integration testing.
678    checkpoint53b_pre
679    
680    o created pkg/mom_common in preparation for variable viscosity code
681    o renamed and split ini_mnc_io
682    o pkg/land: only liquid water can diffuse or run-off
683    o AIM using land: soil wetness availability account for snow
684    o added printMapIncludesZeros to EEPARMS namelist
685    
686    checkpoint53a_post
687    o restore TAMC compatiility for exf_constants.h
688      (no usage of _d in .h)
689    o Additional storing in KPP in an attempt to fix
690      TAMC problem with adjoint of KPP code.
691      (no success...)
692      Identical code works fine with TAF.
693    o Fixed verification/natl_box_adjoint experiments.
694      Initial conditions for Experiments 4 and 5 are now
695      set to "SEAICE_initialHEFF=0", which is more reasonable,
696      and hence gives results closer to that of Experiment 2.
697      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
698    
699    checkpoint53
700    o stable checkpoint with up to date adjoint
701      TLM tests only run for 1st grdchk at the moment. Its unclear if
702      this is a code problem or a problem with resetting code for g_
703      variables that is being autogenerated wrong.
704      Otherwise:
705       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
706       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
707         are both still in chaos following their security messes.
708    
709    checkpoint52n_post
710    o various build (mostly genmake2) changes including:
711      - ability to build/run more easily within Cygwin and MacOS X
712      - more complicated Makefiles with a stronger dependence on Gnu Make
713    o pkg/seaice modifications
714      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
715        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
716        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
717      - changed proxy for geostrophic velocity and updated
718        verification/lab_sea/results/* accordingly
719      - removed ADI dynamic solver from pkg/seaice
720      - replaced all occurrences of 1/CSTICE or 1/CSUICE
721        they caused a segmentation fault under certain circumstances
722      - removed unused field WATR
723    o bug fix in exf-package:
724      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
725         now reflect that.
726    o small fixes in the cal-package:
727      - set reference date to first of January for the 'model'-calendar
728      - failing of cal_CheckDate in cal_FullDate now actually results in a
729        warning
730    o small modifications in exf-package to increase flexibility:
731      - change climtempfreeze from a constant to a runtime parameter that
732        is specified in data.exf_clim (default = -1.9)
733      - introduce runtime parameter windstressmax (default = 2.0) that is
734        specified in data.exf
735    o fix in pkg/thsice:
736      - update Evap (Tsf changes) to be consistent with Latent heat flux
737      - maintain snow precipitation unchanged (even if Tsf >=0).
738     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
739    
740    checkpoint52m_post
741    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
742      this does not change any of the results, because myIter=0 in swfrac always
743      lead to jwtype=2 (the default anyway), but the call makes little sense
744      as a default
745    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
746    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
747      atmospheric model (AIM) to use it ; add a "slab ocean" component.
748    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
749    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
750    o extending useSingleCpuIO option to work with new exch2 I/O format
751      - old-style, missing-tile I/O is still accessible by defining CPP
752        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
753    o monitor package can write to NetCDF files and/or STDOUT
754    o fix re-definition bug in MNC_GRID_INIT_ALL()
755    o doc/api_reference added
756      - a framework for building an API Reference Manual using all
757        the "protex" comments embedded in the code
758      - see pkg/generic_advdiff, pkg/mnc for examples
759    o MNC:
760      - make myThid the last argument for all subroutines
761      - new default for the grid files: NO halos
762      - add useMNC and other run-time flags
763      - separate per-file-group handling of the unlimited dimension
764      - early initialization of MNC w/ flags read at the eeboot stage
765        and lookup tables set in initialize_fixed
766      - write all MNC output to a freshly-created directory
767    o thermodynamics sea-ice (thsice) is now tested with testreport.
768    o test exp. advect_cs: use the standard cs32 grid ; update output.
769    o Added functionality to grdchk:
770      pick global i,j,k position (or nearest wet) where to perform check.
771    
772    checkpoint52l_post
773    o new land formulation:
774      a) use ground enthalpy as prognostic variable to ensure exact
775         energy conservation.
776      b) account for water temperature and for latent heat of freezing
777         in all processes (rain, run-off, ground storage)
778      c) compute surface and ground temperature implicitly.
779    o aim_v23 modification for new land model:
780      a) Treat separately land / ocean / sea-ice surface fluxes
781         to allow implicit computation of land & sea-ice surface temp.
782      b) add snow precipitation.
783    checkpoint52l_pre
784    
785    o fix problem (when 1 tile is empty) in min/max monitor.
786    o fix bug in timeAve (u,vZetatave in common block)
787    o no restoring terms under ice for pkg/seaice
788    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
789    o bug fix for pkg/seaice pickups
790    o change MNC call locations and add coordinate attributes
791    o mask vorticity at the corner ; affects global_ocean.cs output
792    o fix ini_curvilinear_grid ; test CS experiments with mpi
793    o aim.5l_cs: modify sea-ice fraction input file ; update output
794    o exf: Adding simple range check routine for exf fields after read
795    
796    checkpoint52k_post
797    o removed top-level directory "diags"
798      - we migrated these functions to pkg/timeave a long time ago
799    o fixed bug introduced in pkg/monitor
800    o accuracy ctrlprec = 32 insuffient for gradient checks using
801      averaged fields (I/O via cost_averages)
802      -> use ctrl.h in active_file*.F to control I/O precision.
803    o paramter list of CALL ADTHE_MAIN_LOOP
804    o added initial do_the_model_io to ecco
805    o set all ...Freq to zero after cost_final
806      taveFreq, dumpFreq, pChkptFreq
807    o MAIN and ECCO differentiability restored
808    
809    checkpoint52j_post
810    o fix nchklev in tamc.h for global_ocean...
811    o Bringing flow and store directives up-to-date
812    o Really weird thing!
813      call do_the_model_io from the_main_loop with parameters
814      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
815      TAF places a faulty re-call of initialise_varia
816      after cost_final call which should not be there!
817    checkpoint52j_pre
818    
819    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
820      error messages
821    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
822    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
823      debug output
824    o modfied mdsio_writefield.F to handle non-global files under exch2
825    o update AIM Cubed-Sphere exp (aim.5l_cs):
826      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
827    o update AIM Equatorial Channel exp:
828      use standard aim_v23 pkg and change the SST fields to be more realistic.
829    o globalFile now works with exch2
830    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
831      mon_vort3.F to make exch2 friendly with >1 tile per cube face
832    o limit timeave output for hi-res integrations
833    
834    checkpoint52i_post
835    o removed CPP_EEOPTIONS.h from verification/*/code
836    o updated the tiling for global_ocean_pressure
837    checkpoint52i_pre
838    
839    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
840      the old pkg/aim).
841    
842    checkpoint52h_pre
843    o shortened offending lines in exch2_send_rx?.template
844    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
845    o genmake2: add build & execute test for NetCDF code
846    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
847      old grid files, moved CPP_EEMACROS.h to pkg/exch2
848    o added useSingleCPUIO flag to monitor.F and mon_out.F
849    o added temporary hack for sea-ice dynamics on the cube:
850      metric terms are ignored and it is assumed that
851      there is no sea-ice on cube faces 1, 2, 4, and 5.
852    
853    checkpoint52f_post
854    o added exch2 cube routines to pkg/exch2
855    o modified hs94.cs-32x32x5 to use it
856    o added new grid files to hs94.cs-32x32x5
857    checkpoint52f_pre
858    
859    checkpoint52e_post
860    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
861      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
862    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
863      to work with implicit vertical advection and AB ;
864    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
865    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
866     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
867    checkpoint52e_pre
868    
869    o fix bug in impldiff when Nr=1 or Nr=2.
870    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
871    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
872    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
873      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
874    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
875    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
876    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
877    
878    checkpoint52d_post
879    o re-tiled many expts to allow comparison in multi-processor mode
880      - updated output accordingly
881      - changed hs94.128x64x5 to use intial T from file rather than use the
882        random number generator
883    o add infrastructure in model routines for fizhi and gridalt packages
884    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
885    o changes to permit hi-res, cubed-sphere, configuration
886      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
887      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
888      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
889        of surface winds for the cube
890      (A verification experiment, based on global_ocean.cs32x15, but with
891       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
892       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
893       complete with example surface forcing files and matlab scripts to look
894       at the output and compare it with that of global_ocean.cs32x15.)
895    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
896       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
897       to conform to the common rule.
898    o check-in the first version of the coupler + interfaces for multi-components
899       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
900       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
901       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
902       - ocean and atmos. share the same horizontal grid (no interpolation).
903       - exchanges between component and coupler is done in forward_step
904    o new verification experiment, cpl_aim+ocn:
905       coupled ocean - AIM atmosphere on cs32 grid.
906    
907    checkpoint52d_pre
908    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
909    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
910    
911    checkpoint52c_post
912    o Fixing OPTIONS files for use of exf:
913      - ALLOW_ECCO not needed
914      - ECCO_CPPOPTIONS.h should not be included from
915        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
916        as has been the case in the past
917      - All cal/exf related options are currently set in
918        single header file. Should remain so until we
919        agree on a consistent new policy.
920    o Removed all CPP options for cal package.
921      cal has no more CPP options.
922    o modified STOREs in GAD_ADVECTION
923    o corrected key comp. for passkey
924    
925    checkpoint52b_post
926    o new version: "thsice" of thermodynamic sea-ice pkg:
927     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
928     - modify fluxes but do not change theta directly;
929     - light cleaning of bulk_force pkg (still needed with thsice).
930     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
931       + output_thsice.txt to test thsice & bulk_force pkgs.
932    o put back grid & coriolis monitor output.
933    checkpoint52b_pre
934    
935    o call "do_the_model_io" at the beginning (=> dump initial state)
936    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
937    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
938      (need info on NUMBER_OF_PTRACERS)
939    o missing PTRACERS headers in some routines
940    o default tamc.h in pkg/autodiff supposed to crash
941      to ensure proper customization
942    
943    checkpoint52a_post
944    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
945      - moved surfaceTendencyTice from pkg/seaice to main code
946      - subroutine FREEZE_SURFACE now limits only surface temperature
947        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
948        => new output.txt for global_ocean.cs32x15 & global_with_exf
949      - keep the old version of FREEZE for backward compatibility;
950        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
951      - corresponding modifs for TAF directives
952    o added surface flux output variables to TIMEAVE_STATVARS
953    o time-averaged output for pkg/ptracers
954    o fix problem with ECCO-related divided adjoint
955      snapshot file was missing some ad-variables,
956      but no warning issued by TAF
957    
958    checkpoint52a_pre
959    o some bug fixes for #undef REAL4_IS_SLOW
960    
961    checkpoint52 = ecco_c52_e35
962    o after testing adjoints of checkpoint51u_post
963    
964    checkpoint51u_post
965    o this is the post-merge tag of the ecco-branch
966      (needs another clean checkout and re-testing)
967    o various natl_box_adjoint configs and results
968      but no input fields
969    o obcs adjoint not yet merged!
970    o adding ECCO global 1x1 and 2x2 degree configs
971    o updated/extended some store directives for seaice
972    o pkg/ecco now containes ecco-specific part of cost function
973    o top level routines the_main_loop, forward_step
974      supersede those in model/src/
975      previous input data.cost now in data.ecco
976      (new namelist ecco_cost_nml)
977    o in ctrl/ cleaned some cross-dependencies and updated CPP options
978    
979    checkpoint51t_post
980    o this is the pre-merge tag of the ecco-branch
981    
982    checkpoint51s_post
983    o cleanup: removed various obsolete #define-s
984    o pkg/grdchk
985      - renamed 'ph-grd 3' to 'grad-res'
986      - merged from ecco-branch
987        (remaining bug fixes for obcs gradient checks)
988      - additional high-precision output for testreport
989        (grep for 'precision_grdchk_result')
990    
991    checkpoint51r_post
992    o cleaned up or removed CPP_OPTIONS.h files
993    o updated results for some of the tests to reflect the new
994      optfiles (-ieee: -O0 instead of -O3)
995    
996    checkpoint51q_post
997    o cd_code:
998      - moved cd_scheme.F -> cd_code_scheme.F
999      - separate read_checkpoint from cd_code_ini_vars.F
1000      - separated cd_code part from write_checkpoint
1001      - updated AD_SOURCE, generated .flow
1002      - added CD_CODE_VARS.h to the_main_loop
1003      - Moving cd_code specific store dir.s to pkg/cd_code
1004    o ctrl package totally restructured
1005      - pack/unpack now optional and decoupled from
1006        xx_/adxx_ I/O
1007      - ctrl_pack/unpack cleaned
1008        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1009      - confined inclusion of AD_CONFIG.h to where necessary.
1010    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1011    
1012    checkpoint51p_post
1013    o create initial cd_code package
1014      - WARNING: the initialization of fields within packages
1015        is broken because INI_FIELDS (where READ_CHECKPOINT is
1016        called) is called *before* PACKAGES_INIT_VARIABLES.
1017        This seems to be backwards since
1018        1) its important to initially zero the entire field including
1019           the "halo" region
1020        2) zeroing needs to be done *before* reading pickup info
1021           and the pickup call might or might not happen in any
1022           particular run
1023      - this needs an overhaul for R2
1024    o cleanup verification/*/code/GMREDI_OPTIONS.h
1025    o cleanup testreport
1026    
1027    checkpoint51o_post
1028    o bringing AD-related verif's up to date with genmake2
1029      - carbon/
1030      - global_ocean.90x40x15/
1031      - hs.94.1x64x5/
1032      - (front_relax/ )
1033    o (more) consistent directory structure for AD-related verif.'s
1034    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1035    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1036    o bug fix in find_alpha.F for MDJWF:
1037      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1038        change rho -> rho-rhoConst
1039      - replace call find_rho to find_rhonum
1040    o initialisation of rFlx extended to full array (required by TAF)
1041      and shifted to thermodynamics
1042    o removed PTRACERS.h in ptracers routine
1043    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1044    o Correcting initialisations for fVerU, fVerV.
1045    o helping TAF to recognize dependency on kUp for
1046      fVerU, fVerV
1047    o Replacing delZ by delR in pkg/ctrl/
1048    checkpoint51o_pre
1049    
1050    o undid all of cp51 pending some cleanups and discussion
1051    o added the [#include "AD_CONFIG.h"] statement to all files that need
1052       it for adjoint/tl #defines
1053     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1054     o removed tools/genmake since it no longer works
1055    
1056    checkpoint51n_post
1057    o modifications to make FREEZE flux visible to pkg/kpp
1058      - moved surfaceTendencyTice from pkg/seaice to main code
1059      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1060      - subroutine FREEZE now limits only surface temperature
1061        (this means new output.txt for global_ocean.90x40x15,
1062         global_ocean.cs32x15, and global_with_exf)
1063    o added surface flux output variables to TIMEAVE_STATVARS
1064    
1065    checkpoint51n_pre
1066    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1067    o added [#include "AD_CONFIG.h"] to all files that use the following
1068      defines:
1069      - ALLOW_ADJOINT_RUN
1070      - ALLOW_TANGENTLINEAR_RUN
1071      - ALLOW_ECCO_OPTIMIZATION
1072    
1073    checkpoint51m_post
1074    o incorporating changes to get TAMC/TAF working in genmake2
1075      - added new TAMC/TAF targets to the Makefile
1076      - various cleanups related to package handling
1077      - these changes should have no impact on the forward model
1078    
1079    checkpoint51l_post
1080    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1081     - faster algorithm for cal_addtime.F
1082     - higher precision arithmetic, where needed
1083     - pkg/exf *startdate variables changed from calendar date to
1084       model integration time
1085    
1086    checkpoint51l_pre
1087    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1088    o enable to apply restoring on S & T only in a latitude band.
1089    o update output (external_forcing_surf modif. change truncation errors)
1090       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1091    
1092    checkpoint51k_post
1093    o change default to: useNHMTerms=.FALSE.
1094     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1095       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1096     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1097        exp1, ideal_2D_oce
1098     - change data file of oceanic exp (leave the results unchanged for now)
1099       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1100    o set gravitySign automatically according to the vertical coordinate used
1101      (and change sign: back to "logical" value: +1 when R increases downward)
1102    o added an include barrier to the default CPP_OPTIONS.h and
1103      removed the #include "PACKAGES_CONFIG.h" from it
1104    o fix a bug in mom_fluxform (from chk51j_post)
1105    
1106    checkpoint51j_post
1107    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1108    o adjusted some flow directives (dynamics, thermodynamics)
1109    o added cubed-sphere case to test cost function
1110    o heckpoint_lev?_directives.h now include
1111      pkg-specific directives, whenever those are enabled.
1112    o Moving pkg-specific flow directives to corresponding pkg
1113      Moving pkg-specific differentiation list to corresponding pkg
1114      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1115      ---> conventions are
1116           - pkg_ad.flow
1117           - pkg_ad_diff.list
1118           - pkg_ad_check_lev?_dir.h
1119    
1120    checkpoint51i_post
1121    o merge of the branch-genmake2
1122      - knowingly breaks the older genmake
1123      - automatic generation of all ALLOW_${PKG_NAME} defines
1124      - new testreport supersedes older testscript
1125    o large number of package inclusion and header cleanups
1126    checkpoint51i_pre
1127    
1128    o new output for adjoin of global ocean vector invariant
1129    o fix for checkpoint of thermodynamic seaice and bulk_force
1130    o Steph gchem various cleanups
1131    
1132    checkpoint 51h_pre
1133    o fixed some single quotes
1134    o modify gchem pkg to be more versatile
1135    o modifications to clean up dic pkg
1136    o add pkg/cfc
1137    
1138    checkpoint51g_post
1139    o provide links for ARPACK and ADM*TLM
1140    o start removing verification/vero/
1141    o update AD-related stuff
1142      (in particular some IF-statements in model/src/ routines)
1143    o adding to verification/global_ocean.90x40x15/ adjoint of
1144      vector invariant setup
1145    
1146    checkpoint51f_post
1147    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1148    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1149      of tracer Green's fucntions for ocean inversion project.
1150    
1151    checkpoint51f_pre
1152    o Added on-the-fly spatial interpolation capability
1153        "USE_EXF_INTERPOLATION" to pkg/exf.
1154      - This is a temporary Cartesian-grid hack until
1155        the super-duper ESMF coupler becomes available.
1156      - See verification/global_with_exf/README for usage example.
1157      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1158        flags and modified pkg/seaice accordingly.
1159    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1160        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1161        non-local transport term.
1162    
1163    checkpoint51e_post
1164    o pkg/mom_vecinv:
1165      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1166      - add time-ave diagnostic of vorticity advection.
1167    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1168    o atmospheric geopotential: - include water vapor effect;
1169                                - use p^kappa in p* scaling.
1170    o land pkg: read initial state from files.
1171    o AIM : add stratospheric drag in the upper level
1172    
1173    checkpoint51d_post
1174    o change function ILNBLNK (=> last non-blank char.) to return zero
1175      (instead of the string length) when the string. char is empty
1176    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1177    o modif's to restore TAMC compatibility
1178      - avoid "_d" constructs in PARAMETER declarations
1179      - avoid interrupting lines by comment lines
1180    o Use cluster local disks for purely local I/O
1181      vs. globally visible disks needed for ctrl stuff
1182      (merged from ecco-branch)
1183      - new active_file_loc... and mdsio_..._loc routines
1184      - affected packages: autodiff, ctrl, grdchk, mdsio
1185    
1186    checkpoint51c_post
1187    o introducing integer flag debugLevel
1188      - debLevZero: suppress all output
1189      - debLevA: standard
1190      - debLevB: equivalent to current debugMode=.TRUE.
1191    o introducing pathname variable mdsioLocalDir for mdsio
1192      that can be specified at runtime
1193      (relevant for cluster I/O to local disk)
1194    `
1195    >>>checkpoint51b_post
1196    adjoint of ptracers
1197    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1198    o extended state in checkpoint_lev?, etc.
1199    o alternative ctrl/cost with tr1 or ptracer
1200    o new comlev1_bibj_ptracers
1201    o new ptracers.flow
1202    o made ptracers_forcing same as external_forcing_s
1203    o added verification for adjoint with ptracers
1204      - adm. grdchk fail so far
1205      - tlm. grdchk OK
1206      - checked tapelev/comlev recomputations: OK
1207    <<<checkpoint51b_pre
1208    
1209    checkpoint51a_post
1210    o added code for biogeochemistry package
1211      - new pkgs: dic, gchem
1212      - new subroutine in ptracers
1213    o modify code for biogeo packages
1214      - in model/src and pkg/ptracers
1215    
1216    checkpoint51
1217    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1218      - autodiff, ctrl, exf, grdchk, seaice
1219      kept separate packages
1220      - cost, ecco, obcs
1221    o updating verification/internal_wave, verification/lab_sea
1222      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1223    
1224    checkpoint50i_post
1225    o Preparing next differentiable checkpoint and sync
1226      of MAIN vs. ecco-branch
1227      - 1st step: this one is differentiable
1228      - 2nd step: next(! not this) checkpoint will have updated packages
1229                  from ecco-branch)
1230    
1231    checkpoint50h_post
1232    o new package "land": provide surface BC for AIM.
1233    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1234    o AIM: use true log-P extrapolation for near surface temp (= as in
1235        F.Molteni paper) ; update aim.5l_cs output.
1236    o New variable in PARM03 for more flexible pickups
1237    o somewhat cleaned package initialisation sequence for
1238      ctrl/ cost/ ecco/ in packages_... routines
1239    
1240    checkpoint50g_post
1241    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1242      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1243      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1244        made the default because of faster convergence than ADI
1245    
1246    checkpoint50f_post
1247    o exf totally restructured
1248      - replaced all exf_set_ routines by one generic exf_set_gen.F
1249        and made sure it's still differentiable
1250      - split exf_getffields.F into new exf_bulkformulae.F
1251      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1252      - updated adjoint/makefile and relevant verif. accordingly
1253    
1254    checkpoint50f_pre
1255     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1256          + change Evap over land. (update aim.5l_cs output)
1257     o added missing .cvsignores and made uniform across expts
1258     o changed configuration of tidal_basin_2d expt
1259     o added pkg/debug functions for tracing code in fatal crashes
1260     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1261     o new fn in pkg/monitor to stop model if solution grows too big
1262     o removed lots of single quotes from comments
1263    
1264    checkpoint50e_post
1265    o make KPP work with PTRACERS
1266     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1267       nearly a copy of kpp_transport_s
1268     - there is no analogue to SurfaceTendencyS, so I have to use
1269       gPtr(of the surface layer) instead
1270    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1271    checkpoint50e_pre
1272    
1273    checkpoint50d_post
1274    o change kpp output from multiple-record state files to single-record state
1275      files analogous to write_state.F
1276    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1277      analogous to the cg2d-related output.
1278    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1279      so that writing to internal file fn (with length 512) fails.
1280    checkpoint50d_pre
1281    
1282    checkpoint50c_post
1283    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1284    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1285    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1286    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1287    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1288    
1289    checkpoint50c_pre
1290    Merging from release1_p13:
1291    o bug fix for pkg/seaice dynamic solver
1292    o Added SEAICE_initialHEFF to pkg/seaice
1293    
1294    checkpoint50b_post
1295    o store u*,v* in gU,V instead of in guNm1,gvNm1
1296    o in order to put the momForcing out of the Adams-Bashforth:
1297      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1298      to timestep.F
1299    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1300    o re-generate output for highly sensitive test-exp:
1301       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1302    
1303    checkpoint50b_pre
1304    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1305    o corrected CPP option mismatch in exf_Bulk... functions for case
1306      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1307    
1308    checkpoint50a_post
1309    o Bug fix for merging between c50 and KPP.
1310      ikey was passed from thermodynamics to kpp_calc via
1311      common block rather than being recomputed in kpp_calc,
1312      in contradiction with new key itdkey.
1313      New key ikppkey created, and tamc.h headers updated.
1314    
1315    checkpoint50
1316    - 2nd step of merge with ecco-branch:
1317      merge changes in ecco-branch back into main trunk
1318    - bug fix in find_alpha
1319    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1320    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1321    - merged some sliced AD support routines
1322    
1323    checkpoint49
1324    merged from ecco-branch:
1325    o exf:
1326      - Enable initialisation of forcing fields to constant
1327        (runtime) values.
1328      - in exf_getffields.F
1329        Reduce i-/j-loop to interior domain, discarding overlaps.
1330        That also fixes wrong TAF-key computations for key_1, key_2
1331        with bulf formulae.
1332      - exf_init.F modify #ifdef for exf_init_evap
1333      - exf_getffieldrec.F, ctrl_getrec.F
1334        The following INT-usages are not safe:
1335          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1336          fldcount = int(fldsecs/fldperiod) + 1
1337        and were modified.
1338    o autodiff: checkpoint_lev...
1339      - updated storing for bulk formulae (some arrays were missing)
1340      - added state for seaice package
1341      - synchronized with main branch
1342    o DIVA:
1343      Modif.s in
1344      - the_main_loop.F
1345      - the_model_main.F
1346      and added cost_final_restore.F cost_final_store.F
1347      o With these changes, it is possible to fully separate
1348        the first forward run to compute the cost function (mdthe_main_loop)
1349        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1350        into separate model executions.
1351        This enables better tuning of DIVA to given queue sizes.
1352      o Loss of cost function value in consecutive DIVA runs is
1353        fixed by storing to 'costfinal' file.
1354      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1355        beginning/end of adjoint integration is accounted for.
1356      The current changes apply to TAF-1.4.26.
1357      TAF has one remaining bug, requiring one manual change
1358      (see MITgcm manual).
1359    o cal: synchronized between MAIN and ecco-branch
1360    
1361    checkpoint48i_post
1362    o Changes to restore differentiability of code w.r.t. previous tag
1363      (mostly adding new routines to make list and replacing
1364      pressure by totPhiHyd).
1365    o Updated and merged grdchk package
1366      - has both ADM and TLM checks
1367      - works for single- and multi-proc.
1368      - output cleaned
1369      - worked successfully for parallel DIVA
1370    o genmake:
1371      - Adding -platform=SP4
1372      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1373    o Modif. for DIVA:
1374      ctrl_unpack should not be called in intermediate DIVA interval.
1375      (similar thing would apply for active files such as
1376      tbar, sbar, psbar, which should not be reinitialised;
1377      only relevant for ecco-branch)
1378    
1379    checkpoint48h_post
1380    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1381    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1382    o Added SEAICE_initialHEFF to pkg/seaice
1383    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1384    
1385    checkpoint48g_post
1386    --- EOS:
1387    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1388      store total Potential in totPhyHyd for diagnostics & EOS.
1389    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1390    --- Pressure/geopotential gradient:
1391    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1392    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1393      ( changes results of global_ocean_pressure )
1394    o NLFS + z-coord.: add eta*Rho' contribution.
1395    o accurate phiHyd when using interface-W at the middle between 2 centers
1396     ( changes results of ideal_2D_oce )
1397    o includes r* 2nd term in potential gradient.
1398    
1399    checkpoint48f_post
1400    Merging from release1_p12:
1401    o Modifications for using pkg/exf with pkg/seaice
1402      - improved description of the various forcing configurations
1403      - added basic radiation bulk formulae to pkg/exf
1404      - units/sign fix for evap computation in exf_getffields.F
1405      - updated verification/global_with_exf/results/output.txt
1406    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1407      (SBO) core products, including oceanic mass, center-of-mass,
1408      angular, and bottom pressure (see pkg/sbo/README.sbo).
1409    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1410      to avoid negative values in shallow regions.
1411      - updated verification/natl_box/results/output.txt
1412      - updated verification/lab_sea/results/output.txt
1413    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1414    o Added useSingleCpuIO option (see PARAMS.h).
1415    o Updated useSingleCpuIO option in mdsio_writefield.F to
1416      work with multi-field files, e.g., for single-file pickup.
1417    o pkg/seaice:
1418      - bug fix in growth.F: QNET for no shortwave case
1419      - added HeffFile for specifying initial sea-ice thickness
1420      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1421    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1422      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1423    o pkg/seaice:
1424      - adjoint-friendly modifications
1425      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1426    
1427    checkpoint48e_post
1428    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1429    o dynamics: change definition of computational domain & adapt mom_fluxform
1430      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1431    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1432        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1433        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1434        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1435        inverted_barometer solid-body.cs-32x32x1
1436      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1437    
1438    checkpoint48d_post
1439    o in preparation for r*:
1440     a) use pre-computed gradient of hydrostatic potential:
1441        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1442     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1443        => affects results of glob_oce_pressure (different truncation error)  
1444      update output.txt of ideal_2D_oce & global_ocean_pressure
1445    
1446    checkpoint48d_pre
1447    o in preparation for r*:
1448      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1449      pass the 2 comp. of the grad. as arguments to momentum S/R.
1450      but for the moment, only used if it does not change the results.
1451    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1452    
1453    checkpoint48c_post
1454    Modifications in treatment of initial flux forcing controls
1455    to avoid extra storing of flux fields.
1456    
1457    checkpoint48c_pre
1458    o Added tidal_basin_2d experiment (currently 1D!)
1459    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1460    
1461    checkpoint48b_post
1462    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1463     (modification to pressure gradient not yet implemented)
1464    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1465      (for U & V) that are used for vertical advection of momentum.
1466    
1467    checkpoint48a_post
1468    o In preparation for r*, use temp. array to compute vertical transport
1469       in flux-form momentum pkg. => change results of few test-exp.
1470      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1471                        lab_sea, natl_box & plume_on_slope
1472    
1473    checkpoint48
1474    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1475    
1476    checkpoint47j_post
1477    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1478    o moved adexch from forward_step to addummy_in_stepping
1479    o added exch in ctrl_map_...
1480    o aveFreq.=0. at end of cost_final to avoid overwrite in
1481      reverse checkpointing loop
1482    o Yet more changes in gmredi:
1483      * adgmredi_calc_tensor
1484        avoiding all recomputation of gmredi_slope_limit
1485      * adgmredi_x/y/rtransport
1486        added flag for excessive storing to avoid recomp. of
1487        u/v/rtans, dTdx/y/z
1488        -> this is not really necessary and very memory-consuming
1489      * adgmredi_slope_psi:
1490        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1491      * gmredi_slope_limit
1492        re-activated full calculation of taperfct for case 'ac02'
1493    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1494    
1495    checkpoint47i_post
1496    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1497    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1498      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1499    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1500    o gmredi: fix few bugs.
1501    
1502    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1503    This will be a good checkpoint to plug into the ecco-branch.
1504    o few modif.'s to get latest version adjointed
1505      (mainly kick out code in ini_linear_phisurf)
1506    o modif's to run adjoint with exactConserv
1507    o case GM_BOLUS_ADVEC should be cleaned
1508      S/R gmredi_slope_psi should be cleaned
1509    o verification/carbon now has exactConserv=.TRUE.
1510    
1511    checkpoint47g_post
1512    o time-average AIM output: becomes independent from statvars time-average
1513      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1514    o After TAF bug fix:
1515      Tested adjoint of gmredi package.
1516      Tests were done with checkpoint47 rather than with latest
1517      checkpoint47f_post since the latter is broken for the adjoint
1518      verification/carbon/ contains both ADM and TLM gradient checks.
1519    Here they are, before they get changed/lost/stolen.
1520    Mostly modif.'s to fix numerical sensitivities.
1521    Gradient checks OK for
1522    - GM_taper_scheme:
1523      * clipping
1524      * ac02
1525      * linear
1526      * glw91
1527      * dm95
1528      * ldd97
1529    - GMREDI_OPTIONS:
1530      * GM_VISBECK_VARIABLE_K
1531      * GM_NON_UNITY_DIAGONAL
1532      * GM_EXTRA_DIAGONAL
1533      * GM_BOLUS_ADVEC
1534    in conjunction with data.gmredi parameters to be checked in
1535    in a few minutes under verification/carbon/code/
1536    
1537    checkpoint47f_post
1538    Merging from release1_p10:
1539    o modifications for using pkg/exf with pkg/seaice
1540      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1541        and SEAICE_EXTERNAL_FLUXES
1542      - pkg/exf CPP options EXF_READ_EVAP and
1543        EXF_NO_BULK_COMPUTATIONS
1544      - usage examples are Experiments 8 and 9 in
1545        verification/lab_sea/README
1546      - verification/lab_sea default experiment now uses
1547        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1548    
1549    checkpoint47e_post
1550    o created a tag prior to creating a branch
1551    
1552    checkpoint47d_post
1553    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1554      at the bottom boundary had an erroneous half slip boundary condition
1555    o added bottom drag and no slip boundary condition capabilities to
1556      oceanic pressure coordinates code
1557    o added new verification experiment global_ocean_pressure, this experiment is
1558      also described in the tutorial section of the manual
1559    checkpoint47d_pre
1560    
1561    checkpoint47c_post
1562    o Added a verification experiment for a global cubed-sphere ocean run
1563      -  verification/global_ocean.cubed32x32x30
1564      -  uses pkg/therm_seaice and pkg/bulk_forcing
1565    
1566    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1567    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1568      when using P-coordinate; only implemented for atmospheric config.
1569    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1570      NOTES: requires option NONLIN_FRSURF to be "#define".
1571    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1572    
1573    checkpoint47b_post
1574    Merging from release1_p9:
1575    o pkg/seaice
1576      - removed GOTO's and added taf directives
1577      - double precision constants to reduce the g77 (Linux)
1578        to F77 (SGI) differences reported in release1_p8
1579    o tools/genmake
1580      - added SGI options
1581    o verification/testscript
1582      - updated to that of checkpoint47a_post
1583    o verification/global_ocean.90x40x15/input/eedata
1584      - modified for SGI f77 compatibility
1585    o verification/lab_sea
1586      - added description of sea-ice model
1587      - added missing matlab routines
1588      - added test of thermodynamics parallelization
1589    
1590    checkpoint47a_post
1591    o new pkg: aim_v23
1592     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1593       for now, keep the same surface forcing as before.
1594     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1595     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1596     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1597    o add diagnostic of surface correction term in monitor output
1598    
1599    o bulk_force and therm_seaice
1600    - Two packages:  bulk_force (Bulk forcing)
1601      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1602    - Earlier integration from Stephaine Dutkiewicz
1603      and Patrick Heimbach.
1604    - Two ifdef statements for compile time,
1605       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1606    
1607    checkpoint47
1608    differentiable version of checkpoint46n_post
1609    o bug fix in quasihydrostaticterms
1610    o * "clean" adjoint code (in terms of extensive recomputations)
1611        can now be obtained for all GMREDI options (i.e. for
1612        - GM_VISBECK_VARIABLE_K
1613        - GM_NON_UNITY_DIAGONAL
1614        - GM_EXTRA_DIAGONAL
1615        - GM_BOLUS_ADVEC )
1616      * However, wrong gradient check problem remains unsolved.
1617      * New CPP options have been introduced for different
1618        tapering schemes
1619    o external_fields_load now part of differentiation list
1620    o pressure needs multiple storing;
1621      would be nice to have store_pressure at beginning or
1622      end of forward_step, e.g. by having phiHyd global (5-dim.)
1623      (NB: pressure is needed for certain cases in find_rho,
1624      which is also invoked through convective_adjustment).
1625    o recomputations in find_rho for cases
1626     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1627    o #define ATMOSPHERIC_LOADING should be differentiable
1628    o ini_forcing shifted to begining of initialise_varia
1629    o Incorporating QNVS line search routines into MITgcm
1630      (this is separate code, and therefore not under pkg)
1631      lsopt/, optim/
1632    o Updated verification/carbon/
1633      - #define GM_VISBECK_VARIABLE_K
1634      - GM_taper_scheme    = 'ldd97'    
1635    
1636    checkpoint46n_post
1637    Merging from release1_p8:
1638    o verification/natl_box:
1639      updating new external_fields_load routine
1640    o New package: pkg/seaice
1641      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1642      The sea-ice code is based on Hibler (1979-1980).
1643      Two sea-ice dynamic solvers, ADI and LSR, are included.
1644      In addition to computing prognostic sea-ice variables and diagnosing
1645      the forcing/external data fields that drive the ocean model,
1646      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1647      The implied surface heat flux is then stored in variable
1648      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1649      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1650      non-local transport term.  Because this call precedes model
1651      thermodynamics, temperature under sea-ice may not be "exactly" at
1652      the freezing point by the time theta is dumped or time-averaged.
1653      N.B.: fairly large differences in accuracy occur across
1654            different platforms/compilers; comparison between
1655            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1656            generated output gives:
1657       T           S           U           V
1658      C D M    c        m  s        m  s        m  s        m  s
1659      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1660      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1661      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1662    
1663      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1664    o GAD:
1665      - generated new common blocks to account for call of
1666        same gad routines with differing traceridentities
1667        (needed to modify tracerIdentity indices in GAD.h)
1668      - generated separate common blocks for case useCubedSphereExchange
1669        (Department of Futurology)
1670      - parameter lists to gmredi_?transport: added tracerIdentity
1671      - added new key indices to tamc.h
1672    o external_fields_load:
1673      - added this routine to TAF list
1674      - needed to make some common blocks global and additional storing
1675        along the same lines as exf package (checkpoint_lev?_directives.h)
1676    o exf:
1677      updated external forcing package
1678      - bug fixes carried over from ecco-branch
1679        (missing OBCS_OPTIONS.h in two routines)
1680      - enable easy to use "no forcing".
1681      - added exf I/O for atmospheric loading
1682      - added exf I/O for runoff data
1683      - transfered scaling between exf <-> MITgcm to exf namelist
1684    o Adding new verification experiment global_with_exf.
1685      This verification experiment is almost identical to the
1686      global_ocean.90x40x15 experiment, except that it uses
1687      the exf (and cal) package instead of the
1688      external_fields_load routine (cf README file).
1689    
1690    checkpoint46m_post
1691    o modified testscript to return -- when there are no lines of "%MON" output
1692    o added new flag "quasiHydrostatic" for QH mode
1693      and new routine quasihydrostaticterms()
1694    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1695      New routine: mom_u_coriolis_nh()
1696    o fixed sign of non-hydrostatic metric terms in u and v equations.
1697      Depend on correct sign of gravitySign.
1698    o added work.pc* to .cvsignore in aim directories using ifc
1699    o introduced flag for controllin non-hydrostatic metric terms
1700    o removed gravitySign from PARM04
1701    o switched to g77/ifc from pgf77 in aim experiments
1702    
1703    checkpoint46l_post
1704    o made convective adjustment work with pressure coordinates:
1705     - changed the direction of k-loop in convective_adjustment.F for the
1706       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1707     - adjusted the reference pressure k-index in convective_adjustment.F
1708     - adjusted the convection condition in convect.F (in analogy to
1709       calc_ivdc.F)
1710     - convective_adjustment no longer computes anything on the halos
1711     - removed the warnings about negative salinity from find_rho.F and
1712       find_alpha.F; instead the new routine look_for_neg_salinity, called
1713       at the beginning of find_rho, find_alpha, and find_beta, does a
1714       check of the entire slice, if CPP-option
1715       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1716    checkpoint46l_pre
1717    
1718    checkpoint46k_post
1719    o fixed the verification/global_ocean.90x40x15 experiment:
1720     - new bathymetry (the world according to A., JMC, and M.)
1721     - new initial fields and forcing fields (*.bin files)
1722     - new POLY3.COEFFS (for the next release one should switch to a full
1723       equation of state: JMD95P or MDJWF)
1724     - fixed several errors and redundancies in the data file
1725     - experiment uses looped cells
1726     - added matlab directory with diagnostic scripts for plotting of output
1727    
1728    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1729     - read AIM physics parameters from a file (data.aimphys)
1730     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1731    
1732    checkpoint46j_post
1733    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1734    o move wVel computation at the end of the time step, in S/R integr_continuity
1735    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1736    o update timeave pkg for wVel diagnostic.
1737    checkpoint46j_pre
1738    
1739    checkpoint46i_post
1740    o Clean up AIM package (and keep the results unchanged):
1741      include CPP_OPTION and use IMPLICT NONE in all routines ;
1742      declare all the variables _RL ; use _d 0 for all numerical constants.
1743      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1744    
1745    checkpoint46h_post
1746    o cleaned up the use of rhoNil and rhoConst.
1747      - rhoNil should only appear in the LINEAR equation of state, everywhere
1748        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1749        and the dynamical equations are all divided by rhoConst
1750    o introduced new parameter rhoConstFresh, a reference density of fresh
1751      water, to remove the fresh water flux's dependence on rhoNil. The default
1752      value is 999.8 kg/m^3
1753    o cleanup up external_forcing.F and external_forcing_surf.F
1754      - can now be used by both OCEANIC and OCEANICP
1755    checkpoint46h_pre
1756    
1757     Added code to convert surface volume flux (fresh water) into
1758     a mass flux when using P coordinates in the ocean (OCEANICP).
1759     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1760    
1761    checkpoint46g_post
1762    o Include a new diagnostic variable phiHydLow for the ocean model
1763      - in z-coordinates, it is the bottom pressure anomaly
1764      - in p-coordinates, it is the sea surface elevation
1765      - in both cases, these variable have global drift, reflecting the mass
1766        drift in z-coordinates and the volume drift in p-coordinates
1767      - included time averaging for phiHydLow, be aware of the drift!
1768    o depth-dependent computation of Bo_surf for pressure coordinates
1769      in the ocean (buoyancyRelation='OCEANICP')
1770      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1771        Theta, Salinity, and Pressure in the parameter list. This routine is
1772        presently contained in find_rho.F. This routine does not give the
1773        correct density for 'POLY3', which would be a z-dependent reference
1774        density.
1775    o cleaned up find_rho
1776      - removed obsolete 'eqn' from the parameter list.
1777    o added two new verification experiments: gop and goz
1778      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1779    checkpoint46g_pre
1780    
1781  checkpoint46f_post  checkpoint46f_post
1782  o Enable tangent linear (forward mode) gradient checks:  o Enable tangent linear (forward mode) gradient checks:
1783    - extended active file handling to g_... files    - extended active file handling to g_... files

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