/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.502 by jmc, Mon Jun 20 23:23:33 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 add Sadourny like discretization to the 4th.O vorticity advection scheme
8    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
9      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
10         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
11    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
12     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
13    
14    checkpoint57i_post
15    o Diagnostics package was changed: diagnostic allocation is now deactivated
16      by setting an empty file name in the namelist (used to be by setting 0 frequency)
17    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
18      add 1rst Order upwind vertical Shear.
19    o add a quick fix for A/B checkpointing in OFFLINE mode
20    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
21      end-run around the C/Fortran linking horror in eesup/src/timers.F
22    o added pkg/runclock: allows user to terminate run based on wall clock
23    o added non-hydrostatic scaling parameter: nh_am2
24    o pkg/my82: futile attempt to make results compiler-independent by adding
25      some "_d 0", etc. no effect.
26    o for mnc output, fill the 'T' coordinate var with myTime and create a
27      separate 'iter' variable for iteration count
28    o pkg/diagnostics:
29      add new capability: output of Global/Regional & per-level statistics ;
30      tested against monitor output (including land & thSIce) on various exp.
31    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
32    
33    checkpoint57h_done
34      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
35      data.diagnostics, data.gchem, data.ptracers) is done.
36    
37    o pkg/diagnostics: prepare for Global/Regional statistics.
38      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
39    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
40      and rename it: DIFFERENT_MULTIPLE
41    
42    checkpoint57h_post
43    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
44    o pkg/diagnostics: change output frequency, now in seconds (instead
45      of Nb of iterations). This requires to change data.diagnostics.
46    checkpoint57h_pre
47    
48    o in mnc, let the user create the output dir if both mnc_outdir_date
49      and mnc_outdir_num are false
50    o add fflags() to pkg/diagnostics which allows one to specify, on a
51      per-file basis, the file precision [default behavior is unchanged]
52    o added diagnostics to pkg/kpp, including computation of mixed layer
53      depth based on a temperature/density criterion
54    o updated verification/natl_box to test the new pkg/kpp diagnostics
55    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
56    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
57    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
58      not mnc -- this mistake was found by JMC and is now corrected
59    
60    checkpoint57g_post
61    o add Adams-Bashforth 3rd Order time stepping:
62      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
63      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
64    checkpoint57g_pre
65    
66    o make lambda[Theta,Salt]ClimRelax spatially varying
67      (default remains spatially uniform constant based on tau)
68    o added new control variables
69      * init. uVel, vVel, etanN
70      * lambda[Theta,Salt]ClimRelax
71    o separate masks used for ctrl_pack/unpack 'from write_grid' output
72      (suggested by G. Forget)
73    
74    checkpoint57f_post
75    o add parameter "baseTime" = model base time = time at iteration zero
76      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
77      account for baseTime shift
78    o move Coriolis arrays from PARAMS.h to GRID.h
79    checkpoint57f_pre
80    
81    o mnc-ifying the seaice package
82    o introduced an alternative length scale calculation for use in the limiting
83      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
84    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
85    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
86      as well as grad(vort3).  Made it compatible with both approximate form
87      for the cubed sphere and full form of these gradients.  Added flag
88      useFullLeith to select between approximate and full form.  
89    o add "d0" in getcon.F to reduce differences between compilers/platforms
90      update output.txt of exp. fizhi-gridalt-hs
91    o change port_rand funtion to allow to set the seed.
92    o fix obscure MNC bug involving conversion between reals and integers
93      - it caused no problems with certain (eg. gcc, ifc) compilers but the
94        new version is now more standards-compliant
95    o adjoint-related modifications
96      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
97      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
98      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
99    
100    checkpoint57e_post
101    o Adding eddy stress controls a la Ferreira et al.
102    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
103    
104    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
105      update output.txt of exp. fizhi-gridalt-hs
106    o add more "Z" dimensions and associated coordinate vars to MNC
107    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
108    o parameter calendarDumps: when set, approximate months (30-31 days) and years
109      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
110      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
111      months and years.  Requires pkg/cal.
112    o diagnostics: add pickup functionality
113      - off by default for backwards compatibility
114      - current version only uses MDSIO -- MNC will be added
115    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
116    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
117    
118    checkpoint57d_post
119    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
120    o modify verification/ideal_2D_oce so that it tests the creation of mnc
121      output from the diagnostics package
122    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
123    o make genmake2 more portable by using ".$FS" instead of ".f" for more
124      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
125    o add coordinate variables to the MNC output from the diagnostics package
126    o change MNC-flags default value: true when useMNC=TRUE
127    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
128      the ability (off by default) to read the grid information using MNC
129    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
130    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
131    o do snap-shot diagnostics at the middle of the time-interval (instead of
132      at the end).
133    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
134      new test for AIM with thSIce + slab-ocean
135    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
136    o move state variable diagnostics to the beginning of the time step ;
137      (note: still needs some work specially for snap-shot diagnostics)
138      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
139    
140    checkpoint57c_post
141    o Change testing option (-ieee) to get closer agreement between g77 & ifort
142    o generate new output.txt files on faulks with g77 & the new -ieee option
143    checkpoint57c_pre
144    
145    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
146      update output.txt of exp. global_ocean.90x40x15
147    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
148      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
149    o add saltFlux(+File) forcing capability with periodicExternalForcing
150    o allow to use pkg diagnostics for GM-Redi & ThSIce output
151    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
152    o improvements for the MNC output from DIAGNOSTICS:
153      - correct handling of the unlimitied dimension
154      - all dims now have associated coordinate variables
155      - variables located at U, V, and Corner ("Z") points are now written
156        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
157        *all* data points are output
158    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
159    o added pkg/seaice/seaice_monitor.F
160    o mdsio_readfield.F can now read files visible only to master MPI process.
161    o pkg/seaice: some test code for ice-modified ocean stress
162    o exf_getffields interpolation defaults to bilinear for all scalar forcing
163      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
164      spurious negative numbers for precipitation and humidity.  Will cause
165      some small numerical differences for integrations using pkg/exf/exf_interp.F.
166    o pkg/ctrl/
167      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
168        May be enabled via doPackDiag
169      *  introduce z-scaling of
170         + gradient (doZscalePack) and
171         + control (doZscaleUnpack)
172    o pkg/mdsio/
173      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
174      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
175    
176    checkpoint57b_post
177    o simplify options in diagnostics_fill arguments (remove weird combinations)
178    o fix MNC coordinate variables so that they now contain per-face index
179      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
180      general, EXCH2 grids are only aligned to a "local" coordinate system
181    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
182    o Implement instantaneous output within pkg diagnostics:
183      setting a negative frequency in data.diagnostics produces
184     "snap-shot" output (as opposed to time-average if freq > 0)
185    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
186      NOTE: change ptracer diagnostics name: use 2 characters to work with
187            more than 9 tracers. Add also diagnostics of advect & diffus flux.
188    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
189      becomes the coordinate variable for the 'T' dimension
190    o add CF-style coordinate variables to MNC
191      - just a first cut:  numbers are meaningless on the cubesphere and
192        missing along the T axis but otherwise it works!
193    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
194    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
195    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
196      this is based directly on what the model compute, so that the content of
197      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
198    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
199    o clean up build options files for SunOS, in particular
200      - remove -traditional from xmakedepend
201      - change -xarch=v9 to -xarch=native for f77
202      - restore use of make (not gmake)
203      - add CC=gcc if using g77
204    o changes per discussion of AM, JMC, & EH3 today:
205      - move redundant "grid" variables out of "state" -- in preparation of
206        creating proper CF-style coordinate variables and in recognition
207        that any/all grid variables can be easily copied (eg. w/NCO) from
208        the grid files into any of the other NetCDF files
209      - *always* output grid variables with MDSIO (this will eventually be
210        changed)
211      - output MNC grid file if useMNC is true
212    o every instance of _END_MASTER() has been found and replaced with
213      _END_MASTER( myThid ) in order to satisfy certain picky Sun
214      preprocessors
215    o re-arrange diagnostics pkg initialisation:
216     - allow each package to extend the available diagnostics list
217     - add some checking and fix small problems (multi-threaded, ...)
218     - new S/R diagnostics_fill (replace fill_diagnostics):
219       look through the short list of active diag. (instead of the long list)
220       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
221    
222    checkpoint57a_post
223    o this set of changes restores TAMC compatibility
224      tested for global_ocean.90x40x15 adjoint on trough
225      (what a pain)
226    
227    checkpoint57a_pre
228    o some modifs in tools/build_options for sunos
229    o call ctrl_pack for ctrl at end for optimcycle=0
230    
231    checkpoint57
232    o add horizontal bi-harmonic viscosity for vertical velocity
233      - new parameter viscA4W (defaults to viscA4)
234      - affects only non-hydrostatic code
235      - to be done: no-slip lateral boundary conditions
236    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
237    o implement Implicit Vertical advection for pTracers
238    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
239      (implemented also for implicit vertical diffusion & advection)
240    o OBCS: extend application of tracer open boundary conditions
241      to a strip beyond the boundary of width Olx/Oly
242    o add call monitor to TAF set of required calls (flow directives)
243      and include in natl_box_adjoint
244    o untangle a few ifdefs related to cost, ctrl, autodiff
245      untangel a few ALLOW_ECCO_OPTIMIZATION
246    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
247      (theta2, salt2 in ecco_cost_weights)
248    
249    checkpoint56c_post
250    o OBCS as control variables
251      - update ctrl_ad_diff.list, obcs_ad_diff.list
252      - remove balance of obcs controls from default
253      - fix index bug nobcs in ctrl_init
254      - fix dummy fields filen in ctrl_pack
255      - add dummy weights for obcs
256    o lsopt: comment out fort.94 output
257    o optim:
258      - remove unnecessary header files
259      - adjusted namelists
260      - add xerbla.F to Makefile
261    o exf:
262      - multiple modifications of exf_check_range
263      - unit change in exf_init_runoff from [m/year] to [m/s]
264    o mdsio:
265      - i/o-vector change debugLevel from debLevA to debLevB
266    
267    checkpoint56b_post
268    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
269      is called from DO_THE_MODEL_IO
270      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
271      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
272      - clean up PTRACERS_WRITE_TIMEAVE a little
273    o add another verification experiment that tests both the cfc-pkg and
274      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
275      reactive tendencies treated inline with regular timestepping
276    o testreport previously did a lousy job of comparing small numbers, so
277      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
278      implemented in the little c-progam tmp_cmpnum.c which is embedded in
279      testreport.
280    o ptracers_monitor: bug fix for MPI
281    
282    checkpoint56a_post
283    o GCHEM: finish reorganizating the package
284      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
285        (introduces another 3D-array for each passive tracer, but only if
286        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
287        gchemTendency is not needed because the timestep is done separately)
288      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
289      - GCHEM is now---more or less cleanly---separate from PTRACERS
290      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
291        so clear to me how that should be done in a general way.
292    o CFC: improve formatting of output in CFC_ATMOS
293    o PTRACERS:
294      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
295        that ALL experiments with ptracers enable can be checked. This makes
296        GCHEM_MONITOR obsolete.
297      - include a runtime parameter PTRACERS_monitorFreq that defaults to
298        monitorFreq
299      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
300    o add PTRACERS (PTR0[1-5]) to testreport output
301    o exf_check_range:
302      * default changed to .TRUE.
303      * will check values for niter0 if debLevA, every timestep if debLevB
304      * STOP in exf_check_range if 'out of range'
305      * range chosen generous to allow for potential extema
306      TBD: a version with stricter range
307           permitted range would be runtime parameters
308    o GMredi:
309      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
310      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
311      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
312    o GCHEM:
313      - move call to GCHEM_FORCING_SEP, so that it is now called before
314        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
315      - introduced a useGCHEM runtime flag and applied it everywhere.
316      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
317        this flag is now only visible within GCHEM-pkg routines.
318      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
319        be replaced by a 3D array that is computed before thermodynamics; for
320        this, the tracer ID iTracer had to be included into the parameter list
321        of ptracers_forcing
322      - set up forward_step to call gchem_forcing, that will replace
323        gchem_forcing_int in ptracers_forcing
324      - cleaning up
325    o small cleaning of exch2: remove files that are also in eesupp/src
326    
327    checkpoint56
328    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
329    o mnc: cleanup "full" files--fixes out-of-memory problem
330    o ECCO-GODAE
331      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
332      * fully merged and updated from SIO code
333        windstress sign change affects
334        - exf_inscal_[u/v]stress
335        - sign of xx_tau[u/v] adjustments
336        - signs in cost_scat
337      * ctrl_get_gen: avoid update of tau[u/v] for first few days
338      * natl_box_adjoint updated and compressed
339      * 2-level checkpoint switch added
340        (tested in EXP. 1 of natl_box_adjoint)
341      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
342    o SVD
343      * first complete, non-hacked version for SVD calculations
344      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
345        performed via direct access files admtlm_vector.it????
346        (via ctrl_[un]pack)
347      * optimcycle is used for ARPACK iteration counter
348        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
349      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
350        and add linear transforms where necessary
351      * controls are initial/final SST, SSS (can be extended; need to check
352        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
353    o mdsio: filename info to both stderr, stdout
354    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
355      from sign change
356    
357    checkpoint55j_post
358    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
359      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
360    o add consistent build directories and .cvsignore files to verification
361    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
362    o make all subroutines 30 or less characters in length for certain older
363      compilers to work (a thorough search only turns up two routines in
364      pkg/ptracers)
365    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
366      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
367    
368    checkpoint55i_post
369    o change arrays for total vertical diffusivity (2.D if explicit,
370      3.D if implicit) ; each ptracer uses its own background value.
371    o added mnc/NetCDF output capability to ocn_compon_interf
372      - added bits to verification/cpl_aim+ocn so that it can run on
373        ITRDA and other clusters without the mpirun "-wd" option
374    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
375      configuration
376    o give MNC the ability to create additional files rather than
377      exceeding a specified file size limit "MNC_MAX_FILESIZE"
378      - the default is just less than 2GB which is a practical limit
379        on many systems
380    o Compute the non-local term using either KPP vertical diffusivity (=default)
381       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
382    
383    checkpoint55h_post
384    o add verification test "vermix"
385    o remove all the *_ioinc flags and replace with the single global
386      outputTypesInclusive flag
387    o allow to set a vertical profile of vertical diffusivity for T & S
388    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
389    o useMNC moved from data.mnc to data.pkg
390    
391    checkpoint55g_post
392    o Renaming carbon AD experiments to comply with testreport conventions
393    o Updating adjoint of Held-Suarez hs94.1x64x5
394    o Fixing directives for non-ECCO forward_step, after ECCO directives
395      have been fixed to avoid recomp. of do_oceanic_phys
396      Works well for global_ocean.90x40x15,
397      but recomp. issue remains for carbon
398    o Updating adjoint output for natl_box_adjoint after
399      pkg/ecco has been modified (see taga c55d_post)
400    
401    checkpoint55f_post
402    o rename to timeave_init_fixed
403    
404    checkpoint55e_post
405    o some delicate re-shuffle of store directives to avoid one
406      extra call of do_oceanic_physics
407      affects ecco_the_main_loop.F, do_oceanic_physics.F
408      checkpoint_lev1_directives.h
409    o NB: this may break global_ocean adjoint temporarily,
410      but it is clear how to fix it. Will do later, need this now.
411    
412    checkpoint55d_post
413    o ECCO specific cost function terms (up-to-date with 1x1 runs)
414    o ecco_cost_weights is modified to 1x1 runs
415    o modifs to allow observations to be read in as
416      single file or yearly files
417    o enable to read exf forcing fields as either
418      single file or yearly files (flag useExfYearlyFields)
419    checkpoint55d_pre
420    
421    o switch between 2-level and 3-level checkpointing
422    o add ability of MNC to write local and "partial" (eg. 2D slices where
423      the full 3D field is never actually stored) arrays to NetCDF files
424      with the correct (that is, the complete multi-dimensional) set of
425      array indicies
426      - used in mom_vecinv() to write the diagFreq output
427      - tested (demonstrated) in verification/aim.5l_cs
428    o further mnc-ification
429      - add verification/lab_sea to the list with mnc setups
430      - fix undefined mnc v-names in cd_code
431      - add kpp to mnc output (both snapshot and timeave)
432    o non-hydrostatic code
433      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
434        in calc_gw.F
435      - defaults to viscAh
436      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
437        friction or Leith) in non-hydrostatic mode, as long as there is
438        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
439    o pkg/cost
440      extend simple cost functions to treat time mean quantities
441      (T,U,V) via cost_accumulate_state from cost_tile
442    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
443        be 2 times larger than the minimum size the advection scheme requires.
444        now get a perfect conservation of salt in advect_cs test-exp (updated)
445    o GGL90 (Gaspar's TKE mixed layer)
446      - add horizontal diffusion of TKE, requires exchanges in
447        do_fields_blocking_exchanges, horizontal diffusivity is zero by
448        default. In OPA there is no horizontal diffusion of TKE but the
449        mixing coefficients are computed from a horizontal average of TKE of
450        6 points or so. I think that diffusion has a little more physical
451        justification.
452      - clean up ggl90_calc in the hope of reducing memory usage (this hope
453        was in vain)
454      - mask tke-variable in ggl90_init
455    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
456    o fix biharmonic diffusion on CS-grid.
457    o more obcs stuff
458      - added obcs_external_fields_load as an alternative to the EXF-pkg option
459        for reading boundary values. This routine is called from
460        obcs_prescribe_read
461      - updated obcs_check
462      - changed sponge layer relaxation parameter units for days to seconds
463      - turned off sponge layer by default
464      - changed argument list of OBCS_CALC to myTime+deltaTclock
465      - fixed about 35 bugs in obcs_external_fields_load
466    
467    checkpoint55c_post
468    o obcs stuff
469      - new runtime flags useOBCSprescribe, useOBCSbalance
470      - re-arranged obcs_calc
471      - moved exf_getobcs to obcs_prescibe_read
472        obcs_prescibe_read is called after ORLANSKI stuff
473        and independent of it (executable can contain all).
474      - updated obcs_check
475      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
476        These may be necessary only if tangential velocities are
477        prescribed at OB, not sure, needs testing.
478    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
479      which simplifies the calls and passes the ifc check-bounds test
480    
481    checkpoint55b_post
482    o add a 2D scalar, Z location, exchange_2 routine.
483    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
484      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
485      affects advect_cs results (for the wrong reason): update output.txt
486    o use a more standard discretization for biharmonic viscosity ;
487     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
488      affects results of dome set-up: update output.txt
489    o fix gad_advection.F (CubedSphere part), back to version 1.23
490    o fix bug in mom_vi_del2uv.F (CubedSphere part).
491    
492    checkpoint55a_post
493    o merged code to
494      * prescribe/read time-dependent open boundaries
495        (works in conjunction with exf, cal)
496      * sponge layer code for open boundaries
497      * each boundary N/S/E/W now has its own CPP option
498        (healthy for the adjoint)
499    
500    checkpoint55
501    o up-to-date adjoint of previous breaks
502      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
503      - global_ocean_ebm: adjoint still needs fix (TLM ok)
504      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
505      - carbon: * remove tr1-related adjoint verification
506                * add ptracer as control variable
507    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
508      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
509    
510    checkpoint54f_post
511    o in verification/carbin/ remove experiment related to
512      ALLOW_PASSIVE_TRACER (array tr1 etc)
513      code_ad/ input_ad/ results_ad
514    
515    o add two new packages
516      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
517        + subject to optimization (memory)
518      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
519        + subject to reordering (many GOTOs in the original code)
520        + so far opps is called for every (i,j) point, and then operates in
521          the vertical; one may want to reorder the scheme in order operate in
522          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
523          fields)
524    o overhaul of IO so that we now have flags for MDSIO and/or MNC
525      - all verification tests compile and run with linux_ia32_g77
526      - defaults are compatible with current input files--nothing
527        should change if you were not previously using MNC
528      - MNC output has been added in numerous places (eg. timeave)
529        but there are still a few writes not yet do-able with MNC
530        (this is in progress)
531      - flags now allow for either/or/both use of MDSIO and MNC and
532        documentation will soon follow
533      - numerous small formatting cleanups for ProTeX
534    o add version info (via BUILD_INFO.h) to MNC and stdout
535    
536    checkpoint54e_post
537    o add two new packages
538      - pp81 (Packanowski and Philander, 1981), Richardson number and
539        stratification dependent mixing
540      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
541      - these scheme operate in a similar manner as KPP (without ghat, of
542        course), however there is only one diffusivity that is used for both
543        temperature and salinity (and passive tracers)ç
544    o add offline package
545    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
546      provided by Stephanie Dutkiewicz
547    o genmake2: add ability to search for C compilers and cleanup test output
548      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
549    
550    checkpoint54d_post
551    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
552    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
553      leading to additional shift by 5 days each year of integration
554       (i.e. leading to considerable offset over the years)
555    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
556    o start with no AB and no initial filtering (staggerTimeStep):
557      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
558    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
559      (external loading & cpl import/export stay in forward_step.F)
560    o update coupling interface to work with new staggerTimeStep
561    o change MDSIO ptracers_pickup.
562    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
563    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
564    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
565    
566    checkpoint54c_post
567    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
568      this affects (truncation error) output.txt of test-exp:
569       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
570    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
571    o change Qnet to always be the net heat flux, (+upward).
572      affects (truncation error) output of natl_box exp.: updated
573    o define the max number of passive tracers in PTRACERS_SIZE.h
574    o start to test mnc routinely in exp0
575    o add sea-ice loading (sIceLoad) as a new forcing field.
576    
577    checkpoint54b_post
578    o add testreport "-j JOBS" option for parallel builds (tested and pretty
579       impressive on Altix and Opteron systems)
580    o diagnostics can now write NetCDF files through the mnc package
581    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
582    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
583    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
584      affects (truncation error) output of lab_sea & natl_box exp.: updated
585    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
586    
587    checkpoint54a_post
588    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
589    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
590    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
591    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
592      + internal_wave (shift in writing cg2d_ini_res)
593    checkpoint54a_pre
594    
595    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
596      - modified verification/lab_sea and natl_box_adjoint accordingly
597    
598    checkpoint54
599    checkpoint53g_post
600    o prepare splitting of thermodynamics: store convect.counter in common block
601    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
602      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
603    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
604    o new parameter "nShapS": allow to treat differently S from T (nShapT)
605    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
606    o restore adjointability
607    
608    checkpoint53f_post
609    o modifications that affect AIM experiment results (update output.txt):
610      - no advection of S at top interface Nr (pkg/generic_advdiff)
611      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
612    o AIM pkg:
613      - include stability function into surf.Flux derivative relative to Tsurf
614      - calculate clear-sky radiation & surface temp. change (for diagnostics)
615    
616    checkpoint53e_post
617    o merged cylindrical coord configuration
618    o added rotating_tank experiment
619    checkpoint53e_pre
620    
621    checkpoint53d_post
622    o faulks upgraded: re-generate output.txt that have changed:
623       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
624    o Added Bryan and Lewis, 1979, vertical diffusivity profile
625    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
626    o added Sadourny discretization of Coriolis
627      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
628      - re-enabled use of omega3 (useAbsVorticity)
629    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
630      vector-invariant equations
631      - note: does *NOT* yet use same variable visc. for no-slip BC's.
632    o recoded the lateral boundary conditions for non-hydrostatic w, this time
633      hopefully without new bugs
634      - still to do: biharmonic friction for non-hydrostatic w
635    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
636    o regenerated output for global_ocean_ebm (using -ieee)
637    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
638      of mom_common/
639      - simple re-arrangement of instructions within computing loop
640    checkpoint53d_pre
641    
642    checkpoint53c_post
643    o new version of coupler for AIM+thSIce and Ocean models
644     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
645     - land: change Evaporation of snow
646     - aim with thSIce: fix bug in snow-precip.
647    o changes to calc_gw.F
648     - bug fix for w^2 term near the bottom boundary
649     - (hopefully) improve the lateral slip boundary condtions for use with
650        partial/looped cells
651      - because the bug fix changes two verification experiments anyway (exp5
652        and plume on slope), change the lateral boundary condition from half slip
653        to the value of no_slip_sides
654    o ebm package wasnt quite up to the parallel task. Fixed that.
655    o Adjoint of EBM package + verification
656      * TLM OK
657      * ADM not sufficient accuracy yet (needs further testing)
658    
659    checkpoint53b_post
660    o Commiting new energy balance model to repository
661      * package is pkg/ebm
662      * verif. is verification/global_ocean_ebm
663      * references are in ebm_driver.F
664    C      * X. Wang, P. Stone and J. Marotzke, 1999:
665    C        Global thermohaline circulation. Part I:
666    C        Sensitivity to atmospheric moisture transport.
667    C        J. Climate 12(1), 71-82
668    C      * X. Wang, P. Stone and J. Marotzke, 1999:
669    C        Global thermohaline circulation. Part II:
670    C        Sensitivity with interactive transport.
671    C        J. Climate 12(1), 83-91
672    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
673    C        Destabilization of the thermohaline circulation
674    C        by atmospheric eddy transports.
675    C        J. Climate 7(12), 1870-1882
676    o Will need long integration testing.
677    checkpoint53b_pre
678    
679    o created pkg/mom_common in preparation for variable viscosity code
680    o renamed and split ini_mnc_io
681    o pkg/land: only liquid water can diffuse or run-off
682    o AIM using land: soil wetness availability account for snow
683    o added printMapIncludesZeros to EEPARMS namelist
684    
685    checkpoint53a_post
686    o restore TAMC compatiility for exf_constants.h
687      (no usage of _d in .h)
688    o Additional storing in KPP in an attempt to fix
689      TAMC problem with adjoint of KPP code.
690      (no success...)
691      Identical code works fine with TAF.
692    o Fixed verification/natl_box_adjoint experiments.
693      Initial conditions for Experiments 4 and 5 are now
694      set to "SEAICE_initialHEFF=0", which is more reasonable,
695      and hence gives results closer to that of Experiment 2.
696      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
697    
698    checkpoint53
699    o stable checkpoint with up to date adjoint
700      TLM tests only run for 1st grdchk at the moment. Its unclear if
701      this is a code problem or a problem with resetting code for g_
702      variables that is being autogenerated wrong.
703      Otherwise:
704       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
705       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
706         are both still in chaos following their security messes.
707    
708    checkpoint52n_post
709    o various build (mostly genmake2) changes including:
710      - ability to build/run more easily within Cygwin and MacOS X
711      - more complicated Makefiles with a stronger dependence on Gnu Make
712    o pkg/seaice modifications
713      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
714        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
715        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
716      - changed proxy for geostrophic velocity and updated
717        verification/lab_sea/results/* accordingly
718      - removed ADI dynamic solver from pkg/seaice
719      - replaced all occurrences of 1/CSTICE or 1/CSUICE
720        they caused a segmentation fault under certain circumstances
721      - removed unused field WATR
722    o bug fix in exf-package:
723      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
724         now reflect that.
725    o small fixes in the cal-package:
726      - set reference date to first of January for the 'model'-calendar
727      - failing of cal_CheckDate in cal_FullDate now actually results in a
728        warning
729    o small modifications in exf-package to increase flexibility:
730      - change climtempfreeze from a constant to a runtime parameter that
731        is specified in data.exf_clim (default = -1.9)
732      - introduce runtime parameter windstressmax (default = 2.0) that is
733        specified in data.exf
734    o fix in pkg/thsice:
735      - update Evap (Tsf changes) to be consistent with Latent heat flux
736      - maintain snow precipitation unchanged (even if Tsf >=0).
737     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
738    
739    checkpoint52m_post
740    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
741      this does not change any of the results, because myIter=0 in swfrac always
742      lead to jwtype=2 (the default anyway), but the call makes little sense
743      as a default
744    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
745    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
746      atmospheric model (AIM) to use it ; add a "slab ocean" component.
747    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
748    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
749    o extending useSingleCpuIO option to work with new exch2 I/O format
750      - old-style, missing-tile I/O is still accessible by defining CPP
751        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
752    o monitor package can write to NetCDF files and/or STDOUT
753    o fix re-definition bug in MNC_GRID_INIT_ALL()
754    o doc/api_reference added
755      - a framework for building an API Reference Manual using all
756        the "protex" comments embedded in the code
757      - see pkg/generic_advdiff, pkg/mnc for examples
758    o MNC:
759      - make myThid the last argument for all subroutines
760      - new default for the grid files: NO halos
761      - add useMNC and other run-time flags
762      - separate per-file-group handling of the unlimited dimension
763      - early initialization of MNC w/ flags read at the eeboot stage
764        and lookup tables set in initialize_fixed
765      - write all MNC output to a freshly-created directory
766    o thermodynamics sea-ice (thsice) is now tested with testreport.
767    o test exp. advect_cs: use the standard cs32 grid ; update output.
768    o Added functionality to grdchk:
769      pick global i,j,k position (or nearest wet) where to perform check.
770    
771    checkpoint52l_post
772    o new land formulation:
773      a) use ground enthalpy as prognostic variable to ensure exact
774         energy conservation.
775      b) account for water temperature and for latent heat of freezing
776         in all processes (rain, run-off, ground storage)
777      c) compute surface and ground temperature implicitly.
778    o aim_v23 modification for new land model:
779      a) Treat separately land / ocean / sea-ice surface fluxes
780         to allow implicit computation of land & sea-ice surface temp.
781      b) add snow precipitation.
782    checkpoint52l_pre
783    
784    o fix problem (when 1 tile is empty) in min/max monitor.
785    o fix bug in timeAve (u,vZetatave in common block)
786    o no restoring terms under ice for pkg/seaice
787    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
788    o bug fix for pkg/seaice pickups
789    o change MNC call locations and add coordinate attributes
790    o mask vorticity at the corner ; affects global_ocean.cs output
791    o fix ini_curvilinear_grid ; test CS experiments with mpi
792    o aim.5l_cs: modify sea-ice fraction input file ; update output
793    o exf: Adding simple range check routine for exf fields after read
794    
795    checkpoint52k_post
796    o removed top-level directory "diags"
797      - we migrated these functions to pkg/timeave a long time ago
798    o fixed bug introduced in pkg/monitor
799    o accuracy ctrlprec = 32 insuffient for gradient checks using
800      averaged fields (I/O via cost_averages)
801      -> use ctrl.h in active_file*.F to control I/O precision.
802    o paramter list of CALL ADTHE_MAIN_LOOP
803    o added initial do_the_model_io to ecco
804    o set all ...Freq to zero after cost_final
805      taveFreq, dumpFreq, pChkptFreq
806    o MAIN and ECCO differentiability restored
807    
808    checkpoint52j_post
809    o fix nchklev in tamc.h for global_ocean...
810    o Bringing flow and store directives up-to-date
811    o Really weird thing!
812      call do_the_model_io from the_main_loop with parameters
813      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
814      TAF places a faulty re-call of initialise_varia
815      after cost_final call which should not be there!
816    checkpoint52j_pre
817    
818    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
819      error messages
820    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
821    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
822      debug output
823    o modfied mdsio_writefield.F to handle non-global files under exch2
824    o update AIM Cubed-Sphere exp (aim.5l_cs):
825      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
826    o update AIM Equatorial Channel exp:
827      use standard aim_v23 pkg and change the SST fields to be more realistic.
828    o globalFile now works with exch2
829    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
830      mon_vort3.F to make exch2 friendly with >1 tile per cube face
831    o limit timeave output for hi-res integrations
832    
833    checkpoint52i_post
834    o removed CPP_EEOPTIONS.h from verification/*/code
835    o updated the tiling for global_ocean_pressure
836    checkpoint52i_pre
837    
838    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
839      the old pkg/aim).
840    
841    checkpoint52h_pre
842    o shortened offending lines in exch2_send_rx?.template
843    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
844    o genmake2: add build & execute test for NetCDF code
845    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
846      old grid files, moved CPP_EEMACROS.h to pkg/exch2
847    o added useSingleCPUIO flag to monitor.F and mon_out.F
848    o added temporary hack for sea-ice dynamics on the cube:
849      metric terms are ignored and it is assumed that
850      there is no sea-ice on cube faces 1, 2, 4, and 5.
851    
852    checkpoint52f_post
853    o added exch2 cube routines to pkg/exch2
854    o modified hs94.cs-32x32x5 to use it
855    o added new grid files to hs94.cs-32x32x5
856    checkpoint52f_pre
857    
858    checkpoint52e_post
859    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
860      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
861    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
862      to work with implicit vertical advection and AB ;
863    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
864    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
865     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
866    checkpoint52e_pre
867    
868    o fix bug in impldiff when Nr=1 or Nr=2.
869    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
870    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
871    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
872      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
873    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
874    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
875    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
876    
877    checkpoint52d_post
878    o re-tiled many expts to allow comparison in multi-processor mode
879      - updated output accordingly
880      - changed hs94.128x64x5 to use intial T from file rather than use the
881        random number generator
882    o add infrastructure in model routines for fizhi and gridalt packages
883    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
884    o changes to permit hi-res, cubed-sphere, configuration
885      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
886      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
887      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
888        of surface winds for the cube
889      (A verification experiment, based on global_ocean.cs32x15, but with
890       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
891       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
892       complete with example surface forcing files and matlab scripts to look
893       at the output and compare it with that of global_ocean.cs32x15.)
894    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
895       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
896       to conform to the common rule.
897    o check-in the first version of the coupler + interfaces for multi-components
898       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
899       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
900       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
901       - ocean and atmos. share the same horizontal grid (no interpolation).
902       - exchanges between component and coupler is done in forward_step
903    o new verification experiment, cpl_aim+ocn:
904       coupled ocean - AIM atmosphere on cs32 grid.
905    
906    checkpoint52d_pre
907    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
908    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
909    
910    checkpoint52c_post
911    o Fixing OPTIONS files for use of exf:
912      - ALLOW_ECCO not needed
913      - ECCO_CPPOPTIONS.h should not be included from
914        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
915        as has been the case in the past
916      - All cal/exf related options are currently set in
917        single header file. Should remain so until we
918        agree on a consistent new policy.
919    o Removed all CPP options for cal package.
920      cal has no more CPP options.
921    o modified STOREs in GAD_ADVECTION
922    o corrected key comp. for passkey
923    
924    checkpoint52b_post
925    o new version: "thsice" of thermodynamic sea-ice pkg:
926     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
927     - modify fluxes but do not change theta directly;
928     - light cleaning of bulk_force pkg (still needed with thsice).
929     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
930       + output_thsice.txt to test thsice & bulk_force pkgs.
931    o put back grid & coriolis monitor output.
932    checkpoint52b_pre
933    
934    o call "do_the_model_io" at the beginning (=> dump initial state)
935    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
936    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
937      (need info on NUMBER_OF_PTRACERS)
938    o missing PTRACERS headers in some routines
939    o default tamc.h in pkg/autodiff supposed to crash
940      to ensure proper customization
941    
942    checkpoint52a_post
943    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
944      - moved surfaceTendencyTice from pkg/seaice to main code
945      - subroutine FREEZE_SURFACE now limits only surface temperature
946        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
947        => new output.txt for global_ocean.cs32x15 & global_with_exf
948      - keep the old version of FREEZE for backward compatibility;
949        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
950      - corresponding modifs for TAF directives
951    o added surface flux output variables to TIMEAVE_STATVARS
952    o time-averaged output for pkg/ptracers
953    o fix problem with ECCO-related divided adjoint
954      snapshot file was missing some ad-variables,
955      but no warning issued by TAF
956    
957    checkpoint52a_pre
958    o some bug fixes for #undef REAL4_IS_SLOW
959    
960    checkpoint52 = ecco_c52_e35
961    o after testing adjoints of checkpoint51u_post
962    
963    checkpoint51u_post
964    o this is the post-merge tag of the ecco-branch
965      (needs another clean checkout and re-testing)
966    o various natl_box_adjoint configs and results
967      but no input fields
968    o obcs adjoint not yet merged!
969    o adding ECCO global 1x1 and 2x2 degree configs
970    o updated/extended some store directives for seaice
971    o pkg/ecco now containes ecco-specific part of cost function
972    o top level routines the_main_loop, forward_step
973      supersede those in model/src/
974      previous input data.cost now in data.ecco
975      (new namelist ecco_cost_nml)
976    o in ctrl/ cleaned some cross-dependencies and updated CPP options
977    
978    checkpoint51t_post
979    o this is the pre-merge tag of the ecco-branch
980    
981    checkpoint51s_post
982    o cleanup: removed various obsolete #define-s
983    o pkg/grdchk
984      - renamed 'ph-grd 3' to 'grad-res'
985      - merged from ecco-branch
986        (remaining bug fixes for obcs gradient checks)
987      - additional high-precision output for testreport
988        (grep for 'precision_grdchk_result')
989    
990    checkpoint51r_post
991    o cleaned up or removed CPP_OPTIONS.h files
992    o updated results for some of the tests to reflect the new
993      optfiles (-ieee: -O0 instead of -O3)
994    
995    checkpoint51q_post
996    o cd_code:
997      - moved cd_scheme.F -> cd_code_scheme.F
998      - separate read_checkpoint from cd_code_ini_vars.F
999      - separated cd_code part from write_checkpoint
1000      - updated AD_SOURCE, generated .flow
1001      - added CD_CODE_VARS.h to the_main_loop
1002      - Moving cd_code specific store dir.s to pkg/cd_code
1003    o ctrl package totally restructured
1004      - pack/unpack now optional and decoupled from
1005        xx_/adxx_ I/O
1006      - ctrl_pack/unpack cleaned
1007        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1008      - confined inclusion of AD_CONFIG.h to where necessary.
1009    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1010    
1011    checkpoint51p_post
1012    o create initial cd_code package
1013      - WARNING: the initialization of fields within packages
1014        is broken because INI_FIELDS (where READ_CHECKPOINT is
1015        called) is called *before* PACKAGES_INIT_VARIABLES.
1016        This seems to be backwards since
1017        1) its important to initially zero the entire field including
1018           the "halo" region
1019        2) zeroing needs to be done *before* reading pickup info
1020           and the pickup call might or might not happen in any
1021           particular run
1022      - this needs an overhaul for R2
1023    o cleanup verification/*/code/GMREDI_OPTIONS.h
1024    o cleanup testreport
1025    
1026    checkpoint51o_post
1027    o bringing AD-related verif's up to date with genmake2
1028      - carbon/
1029      - global_ocean.90x40x15/
1030      - hs.94.1x64x5/
1031      - (front_relax/ )
1032    o (more) consistent directory structure for AD-related verif.'s
1033    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1034    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1035    o bug fix in find_alpha.F for MDJWF:
1036      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1037        change rho -> rho-rhoConst
1038      - replace call find_rho to find_rhonum
1039    o initialisation of rFlx extended to full array (required by TAF)
1040      and shifted to thermodynamics
1041    o removed PTRACERS.h in ptracers routine
1042    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1043    o Correcting initialisations for fVerU, fVerV.
1044    o helping TAF to recognize dependency on kUp for
1045      fVerU, fVerV
1046    o Replacing delZ by delR in pkg/ctrl/
1047    checkpoint51o_pre
1048    
1049    o undid all of cp51 pending some cleanups and discussion
1050    o added the [#include "AD_CONFIG.h"] statement to all files that need
1051       it for adjoint/tl #defines
1052     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1053     o removed tools/genmake since it no longer works
1054    
1055    checkpoint51n_post
1056    o modifications to make FREEZE flux visible to pkg/kpp
1057      - moved surfaceTendencyTice from pkg/seaice to main code
1058      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1059      - subroutine FREEZE now limits only surface temperature
1060        (this means new output.txt for global_ocean.90x40x15,
1061         global_ocean.cs32x15, and global_with_exf)
1062    o added surface flux output variables to TIMEAVE_STATVARS
1063    
1064    checkpoint51n_pre
1065    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1066    o added [#include "AD_CONFIG.h"] to all files that use the following
1067      defines:
1068      - ALLOW_ADJOINT_RUN
1069      - ALLOW_TANGENTLINEAR_RUN
1070      - ALLOW_ECCO_OPTIMIZATION
1071    
1072    checkpoint51m_post
1073    o incorporating changes to get TAMC/TAF working in genmake2
1074      - added new TAMC/TAF targets to the Makefile
1075      - various cleanups related to package handling
1076      - these changes should have no impact on the forward model
1077    
1078    checkpoint51l_post
1079    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1080     - faster algorithm for cal_addtime.F
1081     - higher precision arithmetic, where needed
1082     - pkg/exf *startdate variables changed from calendar date to
1083       model integration time
1084    
1085    checkpoint51l_pre
1086    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1087    o enable to apply restoring on S & T only in a latitude band.
1088    o update output (external_forcing_surf modif. change truncation errors)
1089       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1090    
1091    checkpoint51k_post
1092    o change default to: useNHMTerms=.FALSE.
1093     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1094       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1095     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1096        exp1, ideal_2D_oce
1097     - change data file of oceanic exp (leave the results unchanged for now)
1098       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1099    o set gravitySign automatically according to the vertical coordinate used
1100      (and change sign: back to "logical" value: +1 when R increases downward)
1101    o added an include barrier to the default CPP_OPTIONS.h and
1102      removed the #include "PACKAGES_CONFIG.h" from it
1103    o fix a bug in mom_fluxform (from chk51j_post)
1104    
1105    checkpoint51j_post
1106    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1107    o adjusted some flow directives (dynamics, thermodynamics)
1108    o added cubed-sphere case to test cost function
1109    o heckpoint_lev?_directives.h now include
1110      pkg-specific directives, whenever those are enabled.
1111    o Moving pkg-specific flow directives to corresponding pkg
1112      Moving pkg-specific differentiation list to corresponding pkg
1113      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1114      ---> conventions are
1115           - pkg_ad.flow
1116           - pkg_ad_diff.list
1117           - pkg_ad_check_lev?_dir.h
1118    
1119    checkpoint51i_post
1120    o merge of the branch-genmake2
1121      - knowingly breaks the older genmake
1122      - automatic generation of all ALLOW_${PKG_NAME} defines
1123      - new testreport supersedes older testscript
1124    o large number of package inclusion and header cleanups
1125    checkpoint51i_pre
1126    
1127    o new output for adjoin of global ocean vector invariant
1128    o fix for checkpoint of thermodynamic seaice and bulk_force
1129    o Steph gchem various cleanups
1130    
1131    checkpoint 51h_pre
1132    o fixed some single quotes
1133    o modify gchem pkg to be more versatile
1134    o modifications to clean up dic pkg
1135    o add pkg/cfc
1136    
1137    checkpoint51g_post
1138    o provide links for ARPACK and ADM*TLM
1139    o start removing verification/vero/
1140    o update AD-related stuff
1141      (in particular some IF-statements in model/src/ routines)
1142    o adding to verification/global_ocean.90x40x15/ adjoint of
1143      vector invariant setup
1144    
1145    checkpoint51f_post
1146    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1147    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1148      of tracer Green's fucntions for ocean inversion project.
1149    
1150    checkpoint51f_pre
1151    o Added on-the-fly spatial interpolation capability
1152        "USE_EXF_INTERPOLATION" to pkg/exf.
1153      - This is a temporary Cartesian-grid hack until
1154        the super-duper ESMF coupler becomes available.
1155      - See verification/global_with_exf/README for usage example.
1156      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1157        flags and modified pkg/seaice accordingly.
1158    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1159        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1160        non-local transport term.
1161    
1162    checkpoint51e_post
1163    o pkg/mom_vecinv:
1164      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1165      - add time-ave diagnostic of vorticity advection.
1166    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1167    o atmospheric geopotential: - include water vapor effect;
1168                                - use p^kappa in p* scaling.
1169    o land pkg: read initial state from files.
1170    o AIM : add stratospheric drag in the upper level
1171    
1172    checkpoint51d_post
1173    o change function ILNBLNK (=> last non-blank char.) to return zero
1174      (instead of the string length) when the string. char is empty
1175    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1176    o modif's to restore TAMC compatibility
1177      - avoid "_d" constructs in PARAMETER declarations
1178      - avoid interrupting lines by comment lines
1179    o Use cluster local disks for purely local I/O
1180      vs. globally visible disks needed for ctrl stuff
1181      (merged from ecco-branch)
1182      - new active_file_loc... and mdsio_..._loc routines
1183      - affected packages: autodiff, ctrl, grdchk, mdsio
1184    
1185    checkpoint51c_post
1186    o introducing integer flag debugLevel
1187      - debLevZero: suppress all output
1188      - debLevA: standard
1189      - debLevB: equivalent to current debugMode=.TRUE.
1190    o introducing pathname variable mdsioLocalDir for mdsio
1191      that can be specified at runtime
1192      (relevant for cluster I/O to local disk)
1193    `
1194    >>>checkpoint51b_post
1195    adjoint of ptracers
1196    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1197    o extended state in checkpoint_lev?, etc.
1198    o alternative ctrl/cost with tr1 or ptracer
1199    o new comlev1_bibj_ptracers
1200    o new ptracers.flow
1201    o made ptracers_forcing same as external_forcing_s
1202    o added verification for adjoint with ptracers
1203      - adm. grdchk fail so far
1204      - tlm. grdchk OK
1205      - checked tapelev/comlev recomputations: OK
1206    <<<checkpoint51b_pre
1207    
1208    checkpoint51a_post
1209    o added code for biogeochemistry package
1210      - new pkgs: dic, gchem
1211      - new subroutine in ptracers
1212    o modify code for biogeo packages
1213      - in model/src and pkg/ptracers
1214    
1215    checkpoint51
1216    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1217      - autodiff, ctrl, exf, grdchk, seaice
1218      kept separate packages
1219      - cost, ecco, obcs
1220    o updating verification/internal_wave, verification/lab_sea
1221      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1222    
1223    checkpoint50i_post
1224    o Preparing next differentiable checkpoint and sync
1225      of MAIN vs. ecco-branch
1226      - 1st step: this one is differentiable
1227      - 2nd step: next(! not this) checkpoint will have updated packages
1228                  from ecco-branch)
1229    
1230    checkpoint50h_post
1231    o new package "land": provide surface BC for AIM.
1232    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1233    o AIM: use true log-P extrapolation for near surface temp (= as in
1234        F.Molteni paper) ; update aim.5l_cs output.
1235    o New variable in PARM03 for more flexible pickups
1236    o somewhat cleaned package initialisation sequence for
1237      ctrl/ cost/ ecco/ in packages_... routines
1238    
1239    checkpoint50g_post
1240    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1241      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1242      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1243        made the default because of faster convergence than ADI
1244    
1245    checkpoint50f_post
1246    o exf totally restructured
1247      - replaced all exf_set_ routines by one generic exf_set_gen.F
1248        and made sure it's still differentiable
1249      - split exf_getffields.F into new exf_bulkformulae.F
1250      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1251      - updated adjoint/makefile and relevant verif. accordingly
1252    
1253    checkpoint50f_pre
1254     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1255          + change Evap over land. (update aim.5l_cs output)
1256     o added missing .cvsignores and made uniform across expts
1257     o changed configuration of tidal_basin_2d expt
1258     o added pkg/debug functions for tracing code in fatal crashes
1259     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1260     o new fn in pkg/monitor to stop model if solution grows too big
1261     o removed lots of single quotes from comments
1262    
1263    checkpoint50e_post
1264    o make KPP work with PTRACERS
1265     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1266       nearly a copy of kpp_transport_s
1267     - there is no analogue to SurfaceTendencyS, so I have to use
1268       gPtr(of the surface layer) instead
1269    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1270    checkpoint50e_pre
1271    
1272    checkpoint50d_post
1273    o change kpp output from multiple-record state files to single-record state
1274      files analogous to write_state.F
1275    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1276      analogous to the cg2d-related output.
1277    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1278      so that writing to internal file fn (with length 512) fails.
1279    checkpoint50d_pre
1280    
1281    checkpoint50c_post
1282    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1283    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1284    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1285    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1286    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1287    
1288    checkpoint50c_pre
1289    Merging from release1_p13:
1290    o bug fix for pkg/seaice dynamic solver
1291    o Added SEAICE_initialHEFF to pkg/seaice
1292    
1293    checkpoint50b_post
1294    o store u*,v* in gU,V instead of in guNm1,gvNm1
1295    o in order to put the momForcing out of the Adams-Bashforth:
1296      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1297      to timestep.F
1298    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1299    o re-generate output for highly sensitive test-exp:
1300       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1301    
1302    checkpoint50b_pre
1303    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1304    o corrected CPP option mismatch in exf_Bulk... functions for case
1305      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1306    
1307    checkpoint50a_post
1308    o Bug fix for merging between c50 and KPP.
1309      ikey was passed from thermodynamics to kpp_calc via
1310      common block rather than being recomputed in kpp_calc,
1311      in contradiction with new key itdkey.
1312      New key ikppkey created, and tamc.h headers updated.
1313    
1314    checkpoint50
1315    - 2nd step of merge with ecco-branch:
1316      merge changes in ecco-branch back into main trunk
1317    - bug fix in find_alpha
1318    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1319    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1320    - merged some sliced AD support routines
1321    
1322    checkpoint49
1323    merged from ecco-branch:
1324    o exf:
1325      - Enable initialisation of forcing fields to constant
1326        (runtime) values.
1327      - in exf_getffields.F
1328        Reduce i-/j-loop to interior domain, discarding overlaps.
1329        That also fixes wrong TAF-key computations for key_1, key_2
1330        with bulf formulae.
1331      - exf_init.F modify #ifdef for exf_init_evap
1332      - exf_getffieldrec.F, ctrl_getrec.F
1333        The following INT-usages are not safe:
1334          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1335          fldcount = int(fldsecs/fldperiod) + 1
1336        and were modified.
1337    o autodiff: checkpoint_lev...
1338      - updated storing for bulk formulae (some arrays were missing)
1339      - added state for seaice package
1340      - synchronized with main branch
1341    o DIVA:
1342      Modif.s in
1343      - the_main_loop.F
1344      - the_model_main.F
1345      and added cost_final_restore.F cost_final_store.F
1346      o With these changes, it is possible to fully separate
1347        the first forward run to compute the cost function (mdthe_main_loop)
1348        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1349        into separate model executions.
1350        This enables better tuning of DIVA to given queue sizes.
1351      o Loss of cost function value in consecutive DIVA runs is
1352        fixed by storing to 'costfinal' file.
1353      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1354        beginning/end of adjoint integration is accounted for.
1355      The current changes apply to TAF-1.4.26.
1356      TAF has one remaining bug, requiring one manual change
1357      (see MITgcm manual).
1358    o cal: synchronized between MAIN and ecco-branch
1359    
1360    checkpoint48i_post
1361    o Changes to restore differentiability of code w.r.t. previous tag
1362      (mostly adding new routines to make list and replacing
1363      pressure by totPhiHyd).
1364    o Updated and merged grdchk package
1365      - has both ADM and TLM checks
1366      - works for single- and multi-proc.
1367      - output cleaned
1368      - worked successfully for parallel DIVA
1369    o genmake:
1370      - Adding -platform=SP4
1371      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1372    o Modif. for DIVA:
1373      ctrl_unpack should not be called in intermediate DIVA interval.
1374      (similar thing would apply for active files such as
1375      tbar, sbar, psbar, which should not be reinitialised;
1376      only relevant for ecco-branch)
1377    
1378    checkpoint48h_post
1379    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1380    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1381    o Added SEAICE_initialHEFF to pkg/seaice
1382    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1383    
1384    checkpoint48g_post
1385    --- EOS:
1386    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1387      store total Potential in totPhyHyd for diagnostics & EOS.
1388    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1389    --- Pressure/geopotential gradient:
1390    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1391    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1392      ( changes results of global_ocean_pressure )
1393    o NLFS + z-coord.: add eta*Rho' contribution.
1394    o accurate phiHyd when using interface-W at the middle between 2 centers
1395     ( changes results of ideal_2D_oce )
1396    o includes r* 2nd term in potential gradient.
1397    
1398    checkpoint48f_post
1399    Merging from release1_p12:
1400    o Modifications for using pkg/exf with pkg/seaice
1401      - improved description of the various forcing configurations
1402      - added basic radiation bulk formulae to pkg/exf
1403      - units/sign fix for evap computation in exf_getffields.F
1404      - updated verification/global_with_exf/results/output.txt
1405    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1406      (SBO) core products, including oceanic mass, center-of-mass,
1407      angular, and bottom pressure (see pkg/sbo/README.sbo).
1408    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1409      to avoid negative values in shallow regions.
1410      - updated verification/natl_box/results/output.txt
1411      - updated verification/lab_sea/results/output.txt
1412    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1413    o Added useSingleCpuIO option (see PARAMS.h).
1414    o Updated useSingleCpuIO option in mdsio_writefield.F to
1415      work with multi-field files, e.g., for single-file pickup.
1416    o pkg/seaice:
1417      - bug fix in growth.F: QNET for no shortwave case
1418      - added HeffFile for specifying initial sea-ice thickness
1419      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1420    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1421      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1422    o pkg/seaice:
1423      - adjoint-friendly modifications
1424      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1425    
1426    checkpoint48e_post
1427    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1428    o dynamics: change definition of computational domain & adapt mom_fluxform
1429      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1430    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1431        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1432        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1433        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1434        inverted_barometer solid-body.cs-32x32x1
1435      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1436    
1437    checkpoint48d_post
1438    o in preparation for r*:
1439     a) use pre-computed gradient of hydrostatic potential:
1440        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1441     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1442        => affects results of glob_oce_pressure (different truncation error)  
1443      update output.txt of ideal_2D_oce & global_ocean_pressure
1444    
1445    checkpoint48d_pre
1446    o in preparation for r*:
1447      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1448      pass the 2 comp. of the grad. as arguments to momentum S/R.
1449      but for the moment, only used if it does not change the results.
1450    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1451    
1452    checkpoint48c_post
1453    Modifications in treatment of initial flux forcing controls
1454    to avoid extra storing of flux fields.
1455    
1456    checkpoint48c_pre
1457    o Added tidal_basin_2d experiment (currently 1D!)
1458    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1459    
1460    checkpoint48b_post
1461    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1462     (modification to pressure gradient not yet implemented)
1463    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1464      (for U & V) that are used for vertical advection of momentum.
1465    
1466    checkpoint48a_post
1467    o In preparation for r*, use temp. array to compute vertical transport
1468       in flux-form momentum pkg. => change results of few test-exp.
1469      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1470                        lab_sea, natl_box & plume_on_slope
1471    
1472    checkpoint48
1473    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1474    
1475    checkpoint47j_post
1476    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1477    o moved adexch from forward_step to addummy_in_stepping
1478    o added exch in ctrl_map_...
1479    o aveFreq.=0. at end of cost_final to avoid overwrite in
1480      reverse checkpointing loop
1481    o Yet more changes in gmredi:
1482      * adgmredi_calc_tensor
1483        avoiding all recomputation of gmredi_slope_limit
1484      * adgmredi_x/y/rtransport
1485        added flag for excessive storing to avoid recomp. of
1486        u/v/rtans, dTdx/y/z
1487        -> this is not really necessary and very memory-consuming
1488      * adgmredi_slope_psi:
1489        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1490      * gmredi_slope_limit
1491        re-activated full calculation of taperfct for case 'ac02'
1492    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1493    
1494    checkpoint47i_post
1495    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1496    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1497      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1498    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1499    o gmredi: fix few bugs.
1500    
1501    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1502    This will be a good checkpoint to plug into the ecco-branch.
1503    o few modif.'s to get latest version adjointed
1504      (mainly kick out code in ini_linear_phisurf)
1505    o modif's to run adjoint with exactConserv
1506    o case GM_BOLUS_ADVEC should be cleaned
1507      S/R gmredi_slope_psi should be cleaned
1508    o verification/carbon now has exactConserv=.TRUE.
1509    
1510    checkpoint47g_post
1511    o time-average AIM output: becomes independent from statvars time-average
1512      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1513    o After TAF bug fix:
1514      Tested adjoint of gmredi package.
1515      Tests were done with checkpoint47 rather than with latest
1516      checkpoint47f_post since the latter is broken for the adjoint
1517      verification/carbon/ contains both ADM and TLM gradient checks.
1518    Here they are, before they get changed/lost/stolen.
1519    Mostly modif.'s to fix numerical sensitivities.
1520    Gradient checks OK for
1521    - GM_taper_scheme:
1522      * clipping
1523      * ac02
1524      * linear
1525      * glw91
1526      * dm95
1527      * ldd97
1528    - GMREDI_OPTIONS:
1529      * GM_VISBECK_VARIABLE_K
1530      * GM_NON_UNITY_DIAGONAL
1531      * GM_EXTRA_DIAGONAL
1532      * GM_BOLUS_ADVEC
1533    in conjunction with data.gmredi parameters to be checked in
1534    in a few minutes under verification/carbon/code/
1535    
1536    checkpoint47f_post
1537    Merging from release1_p10:
1538    o modifications for using pkg/exf with pkg/seaice
1539      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1540        and SEAICE_EXTERNAL_FLUXES
1541      - pkg/exf CPP options EXF_READ_EVAP and
1542        EXF_NO_BULK_COMPUTATIONS
1543      - usage examples are Experiments 8 and 9 in
1544        verification/lab_sea/README
1545      - verification/lab_sea default experiment now uses
1546        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1547    
1548    checkpoint47e_post
1549    o created a tag prior to creating a branch
1550    
1551    checkpoint47d_post
1552    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1553      at the bottom boundary had an erroneous half slip boundary condition
1554    o added bottom drag and no slip boundary condition capabilities to
1555      oceanic pressure coordinates code
1556    o added new verification experiment global_ocean_pressure, this experiment is
1557      also described in the tutorial section of the manual
1558    checkpoint47d_pre
1559    
1560    checkpoint47c_post
1561    o Added a verification experiment for a global cubed-sphere ocean run
1562      -  verification/global_ocean.cubed32x32x30
1563      -  uses pkg/therm_seaice and pkg/bulk_forcing
1564    
1565    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1566    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1567      when using P-coordinate; only implemented for atmospheric config.
1568    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1569      NOTES: requires option NONLIN_FRSURF to be "#define".
1570    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1571    
1572    checkpoint47b_post
1573    Merging from release1_p9:
1574    o pkg/seaice
1575      - removed GOTO's and added taf directives
1576      - double precision constants to reduce the g77 (Linux)
1577        to F77 (SGI) differences reported in release1_p8
1578    o tools/genmake
1579      - added SGI options
1580    o verification/testscript
1581      - updated to that of checkpoint47a_post
1582    o verification/global_ocean.90x40x15/input/eedata
1583      - modified for SGI f77 compatibility
1584    o verification/lab_sea
1585      - added description of sea-ice model
1586      - added missing matlab routines
1587      - added test of thermodynamics parallelization
1588    
1589    checkpoint47a_post
1590    o new pkg: aim_v23
1591     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1592       for now, keep the same surface forcing as before.
1593     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1594     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1595     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1596    o add diagnostic of surface correction term in monitor output
1597    
1598    o bulk_force and therm_seaice
1599    - Two packages:  bulk_force (Bulk forcing)
1600      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1601    - Earlier integration from Stephaine Dutkiewicz
1602      and Patrick Heimbach.
1603    - Two ifdef statements for compile time,
1604       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1605    
1606    checkpoint47
1607    differentiable version of checkpoint46n_post
1608    o bug fix in quasihydrostaticterms
1609    o * "clean" adjoint code (in terms of extensive recomputations)
1610        can now be obtained for all GMREDI options (i.e. for
1611        - GM_VISBECK_VARIABLE_K
1612        - GM_NON_UNITY_DIAGONAL
1613        - GM_EXTRA_DIAGONAL
1614        - GM_BOLUS_ADVEC )
1615      * However, wrong gradient check problem remains unsolved.
1616      * New CPP options have been introduced for different
1617        tapering schemes
1618    o external_fields_load now part of differentiation list
1619    o pressure needs multiple storing;
1620      would be nice to have store_pressure at beginning or
1621      end of forward_step, e.g. by having phiHyd global (5-dim.)
1622      (NB: pressure is needed for certain cases in find_rho,
1623      which is also invoked through convective_adjustment).
1624    o recomputations in find_rho for cases
1625     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1626    o #define ATMOSPHERIC_LOADING should be differentiable
1627    o ini_forcing shifted to begining of initialise_varia
1628    o Incorporating QNVS line search routines into MITgcm
1629      (this is separate code, and therefore not under pkg)
1630      lsopt/, optim/
1631    o Updated verification/carbon/
1632      - #define GM_VISBECK_VARIABLE_K
1633      - GM_taper_scheme    = 'ldd97'    
1634    
1635    checkpoint46n_post
1636    Merging from release1_p8:
1637    o verification/natl_box:
1638      updating new external_fields_load routine
1639    o New package: pkg/seaice
1640      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1641      The sea-ice code is based on Hibler (1979-1980).
1642      Two sea-ice dynamic solvers, ADI and LSR, are included.
1643      In addition to computing prognostic sea-ice variables and diagnosing
1644      the forcing/external data fields that drive the ocean model,
1645      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1646      The implied surface heat flux is then stored in variable
1647      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1648      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1649      non-local transport term.  Because this call precedes model
1650      thermodynamics, temperature under sea-ice may not be "exactly" at
1651      the freezing point by the time theta is dumped or time-averaged.
1652      N.B.: fairly large differences in accuracy occur across
1653            different platforms/compilers; comparison between
1654            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1655            generated output gives:
1656       T           S           U           V
1657      C D M    c        m  s        m  s        m  s        m  s
1658      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1659      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1660      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1661    
1662      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1663    o GAD:
1664      - generated new common blocks to account for call of
1665        same gad routines with differing traceridentities
1666        (needed to modify tracerIdentity indices in GAD.h)
1667      - generated separate common blocks for case useCubedSphereExchange
1668        (Department of Futurology)
1669      - parameter lists to gmredi_?transport: added tracerIdentity
1670      - added new key indices to tamc.h
1671    o external_fields_load:
1672      - added this routine to TAF list
1673      - needed to make some common blocks global and additional storing
1674        along the same lines as exf package (checkpoint_lev?_directives.h)
1675    o exf:
1676      updated external forcing package
1677      - bug fixes carried over from ecco-branch
1678        (missing OBCS_OPTIONS.h in two routines)
1679      - enable easy to use "no forcing".
1680      - added exf I/O for atmospheric loading
1681      - added exf I/O for runoff data
1682      - transfered scaling between exf <-> MITgcm to exf namelist
1683    o Adding new verification experiment global_with_exf.
1684      This verification experiment is almost identical to the
1685      global_ocean.90x40x15 experiment, except that it uses
1686      the exf (and cal) package instead of the
1687      external_fields_load routine (cf README file).
1688    
1689    checkpoint46m_post
1690    o modified testscript to return -- when there are no lines of "%MON" output
1691    o added new flag "quasiHydrostatic" for QH mode
1692      and new routine quasihydrostaticterms()
1693    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1694      New routine: mom_u_coriolis_nh()
1695    o fixed sign of non-hydrostatic metric terms in u and v equations.
1696      Depend on correct sign of gravitySign.
1697    o added work.pc* to .cvsignore in aim directories using ifc
1698    o introduced flag for controllin non-hydrostatic metric terms
1699    o removed gravitySign from PARM04
1700    o switched to g77/ifc from pgf77 in aim experiments
1701    
1702    checkpoint46l_post
1703    o made convective adjustment work with pressure coordinates:
1704     - changed the direction of k-loop in convective_adjustment.F for the
1705       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1706     - adjusted the reference pressure k-index in convective_adjustment.F
1707     - adjusted the convection condition in convect.F (in analogy to
1708       calc_ivdc.F)
1709     - convective_adjustment no longer computes anything on the halos
1710     - removed the warnings about negative salinity from find_rho.F and
1711       find_alpha.F; instead the new routine look_for_neg_salinity, called
1712       at the beginning of find_rho, find_alpha, and find_beta, does a
1713       check of the entire slice, if CPP-option
1714       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1715    checkpoint46l_pre
1716    
1717    checkpoint46k_post
1718    o fixed the verification/global_ocean.90x40x15 experiment:
1719     - new bathymetry (the world according to A., JMC, and M.)
1720     - new initial fields and forcing fields (*.bin files)
1721     - new POLY3.COEFFS (for the next release one should switch to a full
1722       equation of state: JMD95P or MDJWF)
1723     - fixed several errors and redundancies in the data file
1724     - experiment uses looped cells
1725     - added matlab directory with diagnostic scripts for plotting of output
1726    
1727    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1728     - read AIM physics parameters from a file (data.aimphys)
1729     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1730    
1731    checkpoint46j_post
1732    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1733    o move wVel computation at the end of the time step, in S/R integr_continuity
1734    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1735    o update timeave pkg for wVel diagnostic.
1736    checkpoint46j_pre
1737    
1738    checkpoint46i_post
1739    o Clean up AIM package (and keep the results unchanged):
1740      include CPP_OPTION and use IMPLICT NONE in all routines ;
1741      declare all the variables _RL ; use _d 0 for all numerical constants.
1742      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1743    
1744    checkpoint46h_post
1745    o cleaned up the use of rhoNil and rhoConst.
1746      - rhoNil should only appear in the LINEAR equation of state, everywhere
1747        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1748        and the dynamical equations are all divided by rhoConst
1749    o introduced new parameter rhoConstFresh, a reference density of fresh
1750      water, to remove the fresh water flux's dependence on rhoNil. The default
1751      value is 999.8 kg/m^3
1752    o cleanup up external_forcing.F and external_forcing_surf.F
1753      - can now be used by both OCEANIC and OCEANICP
1754    checkpoint46h_pre
1755    
1756     Added code to convert surface volume flux (fresh water) into
1757     a mass flux when using P coordinates in the ocean (OCEANICP).
1758     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1759    
1760    checkpoint46g_post
1761    o Include a new diagnostic variable phiHydLow for the ocean model
1762      - in z-coordinates, it is the bottom pressure anomaly
1763      - in p-coordinates, it is the sea surface elevation
1764      - in both cases, these variable have global drift, reflecting the mass
1765        drift in z-coordinates and the volume drift in p-coordinates
1766      - included time averaging for phiHydLow, be aware of the drift!
1767    o depth-dependent computation of Bo_surf for pressure coordinates
1768      in the ocean (buoyancyRelation='OCEANICP')
1769      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1770        Theta, Salinity, and Pressure in the parameter list. This routine is
1771        presently contained in find_rho.F. This routine does not give the
1772        correct density for 'POLY3', which would be a z-dependent reference
1773        density.
1774    o cleaned up find_rho
1775      - removed obsolete 'eqn' from the parameter list.
1776    o added two new verification experiments: gop and goz
1777      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1778    checkpoint46g_pre
1779    
1780    checkpoint46f_post
1781    o Enable tangent linear (forward mode) gradient checks:
1782      - extended active file handling to g_... files
1783      - added TANGENT_SIMULATION to theSimulationMode
1784      - extended grdchk package accordingly
1785    o added tangent linear setup in verification/carbon/code_ftl
1786    o added adjoint setup in verification/front_relax/code_ad
1787    
1788    checkpoint46e_post
1789    o Added new equation of state -> MDJWF
1790      - EOS of McDougall et al., 2002, JAOT, submitted
1791      - caveat: the equation of state is only valid for a smaller (more
1792        realistic?) range of values than JMD95P/Z and UNESCO
1793      - added masks to the calculation of pressure in store_pressure
1794      - added more check values for density in check_eos (ini_eos.F), some of
1795        the old check values are out of the range of the MDJWF-eos, so don't
1796        expect perfect matches for those
1797    checkpoint46e_pre
1798    
1799    checkpoint46d_post
1800    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1801      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1802      case of pressure coordinates. eosType='JMD95Z' in
1803      combination with buoyancyRelation='OCEANICP' now causes an error.
1804    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1805      in find_alpha/beta.
1806    checkpoint46d_pre
1807    
1808    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1809      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1810    
1811    checkpoint46c_post
1812    o Changes necessary for ocean in p-coordinates
1813     -  Added new buoyancy relation = 'OCEANICP'
1814     -  Added new parameters = gravitySign (this used to be contained inside
1815        the factor dRdZ which I added when we first switched to R coordinates).
1816     X GM/Redi is not compatible (yet)
1817     X bottom drag and no-slip need to be debugged.
1818    checkpoint46c_pre
1819    
1820    checkpoint46b_post
1821    o Added new equation of state -> JMD95Z and JMD95P
1822      - EOS of Jackett and McDougall, 1995, JAOT
1823      - moved all EOS parameters into EOS.h
1824      - new routines ini_eos.F, store_pressure.F
1825    o Added UNESCO EOS, but not recommended because it requires
1826      in-situ temperature (see JMD95)
1827    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1828      unesco.f to be used with POLY3
1829    checkpoint46b_pre
1830    
1831    checkpoint46a_post
1832    o Added (atmospheric) pressure loading
1833      - new field in FFIELDS.h, etc...
1834      - new cpp flag ATMOSPHERIC_LOADING
1835    o Changed hFacC to _hFacC in calc_phi_hyd.F
1836    o Added SHORTWAVE_HEATING to some files for consistency
1837    checkpoint46a_pre
1838    
1839    checkpoint46
1840    further merges from release1_p5
1841    o new ctrl package
1842      - adopted from ECCO environment to enable optimization
1843      - added Eliassen Palm fluxes to controls
1844    o added Eliassen Palm flux controls to gradient check package
1845    o cost package
1846      - Compatible with new ctrl package
1847      - added Eliassen Palm cost hooks
1848      - modif's of existing cost functions
1849    o Adjoint-related bug fixes in kpp:
1850      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1851      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1852    o autodiff package
1853      - flow directives:
1854        + new for S/R do_the_model_io
1855        + enhanced for S/R checkpoint
1856        + new gmredi.flow
1857      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1858        disable adcommon.h/g_common.h by default.
1859      - fixed problem for adjoint of global_max
1860    o modified verification/carbon/
1861    o New setup for adjoint of global_ocean
1862    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1863    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1864    o incorporated hooks for sponge layer code (external_forcing.F)
1865    
1866    checkpoint45d_post
1867    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1868    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1869      (affects plume_on_slope "cg2d" output)
1870    o add new parameter deltaTfreesurf for free-surface time stepping
1871    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1872    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1873    o change phiMin in exp1 (to agree with documentation)
1874    o add new flags:
1875     - T,S forcing inside/outside Adams-Bashforth
1876     - turn off temp,salt advection and/or forcing
1877     - for each tracer, define internal flag for multiDimAdvection & A-B
1878    o monitor: change definition of KE to check conservation of Energy
1879    
1880    checkpoint45c_post
1881    o Removed f90 comments ("!")
1882    o Modified initialisations to enable exf package for MITgcm
1883      (without invoking ECCO_PACKAGE).
1884    o modifications to gradient check package (Martin Losch)
1885      - enable centered differences
1886      - modified format of standard output
1887    
1888    checkpoint45b_post
1889    o cleaned exchange calls in cg2d
1890    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1891    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1892      to configure barotropic setup (Martin Losch)
1893    o moved some initialisations within bi,bj loop in dynamics
1894      (TAF flow dependency)
1895    o in initialise_varia, moved call packages_init_variables
1896      before convective_adjustment_init
1897      (corresponding adjustment of TAF tape initialisation).
1898    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1899    
1900    checkpoint45a_post
1901    o compute Rho over the whole domain (extend iMin,jMin indices)
1902    o specific exchange for X-slice domain (case Ny=1)
1903    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1904    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1905    
1906    checkpoint44h_post = checkpoint45
1907    o Fix to restore differentiability:
1908      place at which packages_init_variables is called in
1909      initialise_varia is crucial for reverse control flow.
1910    o modifications in GMRedi to enable stable adjoint
1911      (corresponding modif's in thermodynamics, dynamics)
1912    o added missing hook for sponge layer code in external_forcing
1913    o modified test cost functions
1914    o storing in gad_advection (plus removal of write(0,*)!
1915    o missing headers TR1.h added in convective_adjustment routines
1916    o errorMessageUnit set non-equal zero in eeboot
1917      (conflict on some platforms, e.g. IBM SP3)
1918    o modified carbon verif.
1919    
1920    checkpoint44h_pre
1921    o vertical grid option: allow to put the Interface at the middle between
1922      2 cell-centers ; replace delZ in pkg/kpp by drF.
1923    o GM Advective form: Tracers are advected using the residual transport (=
1924      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1925    
1926    checkpoint44g_post
1927    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1928      results) ; ifdef missing in thermodynamics.F
1929    
1930    checkpoint44f_pre,checkpoint44f_post
1931    o added PTRACERS package
1932      This allows an arbitrary number of passive tracers to be integrated
1933      forward simultaneously with the dynamicaly model.
1934      + Implemented so far:
1935        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1936        - I/O and checkpointing
1937        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1938      + Not implemented so far:
1939        - KPP
1940        - OBCS
1941      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1942        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1943        line in data.pkg.
1944      + This package is disabled by default since it increases storage.
1945    
1946    
1947    o testscript: added -cleanup option
1948    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1949                 b) enable to filter 2D fields.
1950    
1951    checkpoint44e_pre,post
1952    o re-wrote convective adjustment to use pre-calculated weights
1953      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1954      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1955      Original calls to convect() still in place.
1956    
1957    chkpt44d_pre,post
1958    o added missing EXCLUDE_MONITOR flags
1959    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1960      (incompatible typ in MIN/MAX expressions caused problems
1961      on IBM SP3)
1962    o in genmake added variable MAKEDEPEND
1963      plus resetting for case SunOS
1964    o added timer_stats.c routine for IBM SP3
1965    o removed variables in dynamics
1966    !!! I forgot to create tag chkpt44d_pre !!!
1967    !!! But chkpt44d_pre = chkpt44c_post    !!!
1968    
1969    o real fresh water flux implemented with non-linear free-surface.
1970    
1971    chkpt44c_pre,post
1972    o few fix (mask in shap_s2, EmPmR in external_field_load,
1973      USE_NATURAL_BCS in solve_for_P);
1974    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1975    
1976    checkpoint44b_pre/_post
1977    o merge of relevant stuff from the ecco-branch:
1978      - genmake: removed $S64 overwrite for case SunOS
1979      - pkg/exf: update and corrections for field swapping and obcs
1980      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1981                  harmonized between ECCO and MITgcm
1982      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1983                      updated checkpointing_lev... lists for obcs
1984      - model/src: minor changes in forward_step, plot_field
1985                   added directive for divided adjoint in the_main_loop
1986      - pkg/mdsio: added mdsio_gl_slice
1987    
1988    o check parameters & config (chkpt44a_pre,post)
1989    o OBC and NonLin_FrSurf.
1990    
1991    checkpoint44
1992    o fix bug in mom_vi_del2uv
1993    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1994    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1995    o update AIM experiments (NCEP input files)
1996    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1997    o added some stuff for AD
1998    
1999    checkpoint43
2000    o added two new advection tests
2001    o added global 4x4 degree ocean test
2002    o added test of H&S94 with free surface on cube
2003    o some final mods for gradient check, adjoint,...
2004    
2005    checkpoint42
2006      Fixed AD-related problems:
2007    o Store directives up-to-date with re-arranged Adams-Bashforth
2008      (mainly thermodynamics.F)
2009    o New store directives for multi-dim. advection schemes
2010      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2011      * new common block and key passkey
2012      (mainly gad_advection.F)
2013    o Modified store directives for split of dynamics/thermodynamics
2014      for the case ALLOW_KPP
2015    o Cleaned argument list for timestep_tracer.F
2016    
2017    checkpoint41
2018    o re-formatted/added comments in prologues of key subroutines
2019      to work with protex
2020    
2021    checkpoint40
2022    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2023    o added FLT (floats) package from Arne along with demo. experiment
2024    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2025      implementation of forward-in-time forcing terms
2026    o more mods for non-linear free-surface including new variable
2027    o modified multi-dim method to work on cube
2028    o bug fix in KPP (from DM)
2029    
2030    checkpoint40pre9
2031    o added DST advection schemes
2032    o fix MPI bug on SGI's
2033    o modifications for non-linear free-surface
2034    o fixed conditionals for fixed flow/passive tracer only mode
2035    o added tension/strain form of stress tensor
2036    o changes to commenting of arguments for TAF/TAMC
2037    o added/updated many matlab scripts
2038    o added multi-dimensional advection method for tracers
2039      
2040    checkpoint40pre8
2041    o new package rw/
2042      Added method for dumping intermediate local arrays:
2043      mdsio_writetile - same as mdsio_writefield except works from inside
2044                        bi,bj loop
2045      mdsio_writelocal - same as mdsio_writetile except works for local
2046                         arrays
2047      write_local_r? - higher-level wrapper for mdsio_writelocal
2048      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2049      Example given at end of mom_vecinv.F that dumps some local arrays.
2050    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2051      control flux-form versus vector invariant code.
2052      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2053      or genmake -DISABLE ...
2054    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2055      (additional storing is now needed for case vecinv;
2056      currently nothing implemented to switch this storing off
2057      in case fluxform is used since no CPP flag available).
2058    
2059    checkpoint40pre7
2060    o bug fix in dynamics.F
2061      calc_viscosity called before k=1,Nr loop.
2062    o added some #ifdef's ALLOW_PASSIVE_TRACER
2063    o cleaned initialisations in ctrl_map_ini
2064      related to TAF
2065    
2066    checkpoint40pre6
2067    o split dynamics into thermodynamics & dynamics
2068    o corresponding split of calc_diffusivity into
2069      calc_diffusivity, calc_viscosity
2070      (kpp_calc_diff, kpp_calc_visc).
2071    o Added diffkr, kapgm to control variables
2072    o bug fix in gmredi_slope_limit for ldd97
2073    
2074    checkpoint40pre5
2075    o proper initialization of Adams-Bashforth time stepping
2076      + uses forward step for very first step of model (iter=0)
2077    o re-generated *all* output since almost all output is modified by this
2078      change (sorry but we've been putting this one off for about 2 years)
2079      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2080        *not* regenerated since they are already out of date and I don't
2081        want to create the impression that they are suddenly working.
2082    o removed KAP stuff for DEC's
2083    o modified/added many .cvsignore files in */code and */input
2084    o added new expt "solid-body.cs-32x32x1"
2085      + this uses an alternative form of ini_curvilinear_grid.F which
2086        is not necessarily any better than the current one...
2087    
2088    checkpoint40pre4
2089    o added re-initialisations of utrans,vtrans,rtrans in
2090      calc_common_factors which are crucial for TAF.
2091    o extended iMin,jMin range for calc_common_factors,
2092      calc_diffusivity
2093    o added option ALLOW_PASSIVE_TRACER
2094    o a few minor updates and fixes
2095    
2096    checkpoint40pre3
2097    o created calc_gtr1.F for gad package
2098    o split the_main_loop and re-introduced forward_step
2099    o some recomputations of nIter0 for TAMC
2100    
2101    checkpoint40pre2
2102    o Updated to latest branch of AJA, JMC
2103    o Added gradient check package
2104    o Added routines for passive tracer handling
2105    o Added carbon sequestration sensitivity experiment
2106    
2107    checkpoint39
2108     o Modifications and fixes to support TAMC
2109       (mainly missing or wrong directives)
2110     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2111       in addummy_in_stepping
2112     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2113     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2114     o Included following packages:
2115       cal: calendar
2116       exf: external forcing
2117       ecco: essential routines to control use of cal, exf
2118             (NB: this is not the full ECCO environment)
2119     o disabled some packages by default in genmake
2120    
2121    checkpoint38
2122     o see notes_c37_adj.txt
2123     o corrected wrong layer index in external_forcing_t
2124     o replaced the_main_loop/forward_step by the_main_loop
2125     o removed forceoutput from write_state
2126       (replaced criteria for initial/final state)
2127     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2128    
2129    checkpoint37
2130     o mdsio.F routine split and packaged in pkg/mdsio
2131       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2132        used unless genmake -disable=mdsio)
2133     o allow a more precise surface-geopotential gradient for the atmosphere
2134       taking into account the change in space of Alpha (=1/rho) at the surface.
2135     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2136       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2137     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2138       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2139       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2140     o Time-Average diagnostics defined as a pseudo package "timeave".
2141     o pickup files : old pickup (before c35) did not work with new code (c35
2142       and after) unless activating 2 commented lines in initialise-varia.
2143     o Non-Hydrostatic pickup file Pb fixed.
2144     o bug with Rigid-lid version (since c35) fixed.  
2145    
2146    checkpoint36
2147     o implement Crank-Nickelson barotropic time-stepping
2148     o recover Time-Average diagnostics
2149     o fix Pb in checkpoint (PR#19)
2150     o AIM become a standard package ; clean unused CPP_kees
2151    
2152    checkpoint35
2153     o subtantial rewrite of dynamics.f
2154     o allows staggered time-stepping
2155     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2156     o added bottom drag (linear + quadratic)
2157    
2158    checkpoint34
2159     o Modified exchange routines for correct reverse simulation.
2160     o Added verification output to comply with bug fix in impldiff.F
2161       as of c33 (exp2, natl_box).
2162     o Corrected store directives in dynamics.F
2163     o Corrected array boundaries in impldiff.F
2164     o Corrected array dimensions in gmredi.
2165       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2166     o Added routine GLOBAL_SUM_INT to global_sum.F
2167     o Added mdsio_gl.F for ECCO purposes.
2168    
2169    checkpoint33
2170     o Fixed bug in lower BC in impldiff.F
2171     o Fixed confusion about units of forcing arrays in FFIELDS.h
2172       namely Fu,Fv,Qnet,Qsw,EmPmR:
2173       - Removed verification/natl_box/code/external_fields_scale.F
2174         (did not differ from that in model/src)
2175       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2176         (see FFIELDS.h for description)
2177       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2178         kpp_calc.F and kpp_transport_t.F
2179       - Removed model/src/external_fields_scale.F and calls to it
2180       - verification/natl_box uses flux data with "atmospheric" sign so
2181         a special version of external_fields_load.F is used to
2182         change the data as it's read in. This way, the arrays
2183         have the right units and signs at all times tha a user could
2184         possibly use them.
2185     o Corrected genmake to delete a temporary file during configuration
2186    
2187    checkpoint32
2188     o Scaling of forcing fields moved from external_forcing.F to
2189       external_fields_scale.F, called directly after loading fields.
2190     o Surface relaxation terms added to surface tendency fields in
2191       extra subroutine.
2192     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2193       fields.
2194     o Changes in GMRedi to comply with packaging structure.
2195     o Modifications and bug fixes in KPP package.
2196     o Verification experiment for KPP added (verification/nat_box/)
2197    
2198    checkpoint31
2199     o Packages interface brought in line with defined standard
2200       -> new routines packages_...F
2201       -> changes in initialise_fixed.F, initialise_varia.F
2202       -> enables initialisation interface for ECCO package
2203     o Rescaling of external forcing fields immediately after read
2204       (removed from external_forcing.F)
2205       -> new: surface_fields_scale.F
2206       -> affects ini_foorcing.F, external_fields_load.F
2207     o Computation of surface tendencies before tendency updates.
2208       -> new: external_forcing_surf.F
2209     o Change of variable names useGMRedi, useKPP, useECCO
2210     o Further changes in dynamics.F, impldiff.F for TAMC
2211     o Tested for experiments 0, 2, 4.
2212       - not yet tested for GMRedi.
2213       - not yet tested for KPP.
2214    
2215    checkpoint30
2216     o Updates for OBCs
2217     o New experiment for test OBCs (internal_wave)
2218     o New output.txt in verification/exp4/results/
2219     o Updates for KPP: calculation of viscosity corrected, new variables
2220       kpp_dumpFreq and kpp_taveFreq
2221     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2222       and entry for T90 in genmake
2223    
2224    checkpoint29
2225     o packaged KPP and GM/Redi
2226    
2227    checkpoint28
2228     o Corrected initialization of hFacMin for difference vertical coordinates
2229     o Modified calculation of partial cell thickness to more robust algorithm
2230     o config_summary.F: replaced write_1D_... by write_0D_...
2231       read_write.F: added subroutines write_0D_...
2232     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2233       included some initialisations required for TAMC.
2234     o routine calc_isoslopes: modified sqrt computation to make it
2235       differentiable for zero argument.
2236     o routines dynamics, impldiff:
2237       included store directives and tape key computations required for TAMC.
2238     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2239    
2240    checkpoint27
2241     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2242       formulation works properly with variable resolution.
2243     o restructured the calling tree between the_model_main() and dynamics()
2244     o split initialise() into initialise_fixed() and initialise_varia()
2245     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2246       in new routine ini_psurf()
2247    
2248    checkpoint26
2249     o moved some #ifdef in optional routines to encompass everything
2250       except the argument declarations. This was using up some memory.
2251     o fixed macros like _ADT to work with both versions of Linux cpp
2252     o cleaned up some unused and uninitialized variables
2253       (helps when debugging with strict compile options)
2254     o split up CPP_EEOPTIONS.h into options and macros
2255       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2256     o patch for 2 processor JAM mode
2257    
2258    checkpoint25
2259     o updates for OBCs and NH
2260     o dramatically reduced memory usage
2261     o added "JAM" routines for use on Artic network
2262     o parameterization of convection by implicit vertical diffusion
2263     o added a diagnostic of convective index
2264     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2265       (this is was partly for OBCs and NH but also in anticipation of
2266        an explicit free-surface option)
2267     o initial state input files for U and V
2268    
2269    checkpoint24
2270     o Removed some spurious "REAL"s
2271     o Updated KPP to latest version from JPL
2272     o Added a COS(latitude) in horizontal viscosity
2273    
2274    checkpoint23
2275     o Added del^4 diffusion for salt and temperature
2276     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2277    
2278    checkpoint22
2279     o Made many small changes: implicit none, format(i5), etc...
2280     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2281    
2282    checkpoint21
2283     o Introduced new I/O package that supports direct-access records (mdsio.F)
2284     o Split-up mid-level I/O routines
2285     o Updated input data for experiments 0,1,2,4 and 5
2286     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2287    
2288    checkpoint20
2289     o Tidied up open-boundaries some more
2290     o Added non-hydrostatic code
2291     o Fixed some input data
2292     o Modified MPI start-up to work in "coupled" context.
2293    
2294    checkpoint19
2295     o Tidied up directory structure for verification experiments.
2296     o Added new code for open boundaries.
2297     o Corrected advective terms near boundaries.
2298     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2299     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2300     o Split default parameters out of ini_parms.F into set_defaults.F.
2301    
2302    checkpoint18
2303     o Further changes for optional code generation with
2304       CPP - ugh!
2305    
2306  checkpoint17  checkpoint17
2307   o Beginning to incorporating modularity   o Beginning to incorporating modularity
2308     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

Legend:
Removed from v.1.16  
changed lines
  Added in v.1.502

  ViewVC Help
Powered by ViewVC 1.1.22