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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.474 by jmc, Fri Apr 8 18:31:46 2005 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o make lambda[Theta,Salt]ClimRelax spatially varying
7      (default remains spatially uniform constant based on tau)
8    o added new control variables
9      * init. uVel, vVel, etanN
10      * lambda[Theta,Salt]ClimRelax
11    o separate masks used for ctrl_pack/unpack 'from write_grid' output
12      (suggested by G. Forget)
13    
14    checkpoint57f_post
15    o add parameter "baseTime" = model base time = time at iteration zero
16      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
17      account for baseTime shift
18    o move Coriolis arrays from PARAMS.h to GRID.h
19    checkpoint57f_pre
20    
21    o mnc-ifying the seaice package
22    o introduced an alternative length scale calculation for use in the limiting
23      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
24    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
25    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
26      as well as grad(vort3).  Made it compatible with both approximate form
27      for the cubed sphere and full form of these gradients.  Added flag
28      useFullLeith to select between approximate and full form.  
29    o add "d0" in getcon.F to reduce differences between compilers/platforms
30      update output.txt of exp. fizhi-gridalt-hs
31    o change port_rand funtion to allow to set the seed.
32    o fix obscure MNC bug involving conversion between reals and integers
33      - it caused no problems with certain (eg. gcc, ifc) compilers but the
34        new version is now more standards-compliant
35    o adjoint-related modifications
36      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
37      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
38      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
39    
40    checkpoint57e_post
41    o Adding eddy stress controls a la Ferreira et al.
42    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
43    
44    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
45      update output.txt of exp. fizhi-gridalt-hs
46    o add more "Z" dimensions and associated coordinate vars to MNC
47    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
48    o parameter calendarDumps: when set, approximate months (30-31 days) and years
49      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
50      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
51      months and years.  Requires pkg/cal.
52    o diagnostics: add pickup functionality
53      - off by default for backwards compatibility
54      - current version only uses MDSIO -- MNC will be added
55    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
56    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
57    
58    checkpoint57d_post
59    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
60    o modify verification/ideal_2D_oce so that it tests the creation of mnc
61      output from the diagnostics package
62    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
63    o make genmake2 more portable by using ".$FS" instead of ".f" for more
64      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
65    o add coordinate variables to the MNC output from the diagnostics package
66    o change MNC-flags default value: true when useMNC=TRUE
67    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
68      the ability (off by default) to read the grid information using MNC
69    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
70    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
71    o do snap-shot diagnostics at the middle of the time-interval (instead of
72      at the end).
73    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
74      new test for AIM with thSIce + slab-ocean
75    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
76    o move state variable diagnostics to the beginning of the time step ;
77      (note: still needs some work specially for snap-shot diagnostics)
78      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
79    
80    checkpoint57c_post
81    o Change testing option (-ieee) to get closer agreement between g77 & ifort
82    o generate new output.txt files on faulks with g77 & the new -ieee option
83    checkpoint57c_pre
84    
85    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
86      update output.txt of exp. global_ocean.90x40x15
87    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
88      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
89    o add saltFlux(+File) forcing capability with periodicExternalForcing
90    o allow to use pkg diagnostics for GM-Redi & ThSIce output
91    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
92    o improvements for the MNC output from DIAGNOSTICS:
93      - correct handling of the unlimitied dimension
94      - all dims now have associated coordinate variables
95      - variables located at U, V, and Corner ("Z") points are now written
96        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
97        *all* data points are output
98    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
99    o added pkg/seaice/seaice_monitor.F
100    o mdsio_readfield.F can now read files visible only to master MPI process.
101    o pkg/seaice: some test code for ice-modified ocean stress
102    o exf_getffields interpolation defaults to bilinear for all scalar forcing
103      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
104      spurious negative numbers for precipitation and humidity.  Will cause
105      some small numerical differences for integrations using pkg/exf/exf_interp.F.
106    o pkg/ctrl/
107      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
108        May be enabled via doPackDiag
109      *  introduce z-scaling of
110         + gradient (doZscalePack) and
111         + control (doZscaleUnpack)
112    o pkg/mdsio/
113      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
114      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
115    
116    checkpoint57b_post
117    o simplify options in diagnostics_fill arguments (remove weird combinations)
118    o fix MNC coordinate variables so that they now contain per-face index
119      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
120      general, EXCH2 grids are only aligned to a "local" coordinate system
121    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
122    o Implement instantaneous output within pkg diagnostics:
123      setting a negative frequency in data.diagnostics produces
124     "snap-shot" output (as opposed to time-average if freq > 0)
125    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
126      NOTE: change ptracer diagnostics name: use 2 characters to work with
127            more than 9 tracers. Add also diagnostics of advect & diffus flux.
128    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
129      becomes the coordinate variable for the 'T' dimension
130    o add CF-style coordinate variables to MNC
131      - just a first cut:  numbers are meaningless on the cubesphere and
132        missing along the T axis but otherwise it works!
133    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
134    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
135    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
136      this is based directly on what the model compute, so that the content of
137      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
138    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
139    o clean up build options files for SunOS, in particular
140      - remove -traditional from xmakedepend
141      - change -xarch=v9 to -xarch=native for f77
142      - restore use of make (not gmake)
143      - add CC=gcc if using g77
144    o changes per discussion of AM, JMC, & EH3 today:
145      - move redundant "grid" variables out of "state" -- in preparation of
146        creating proper CF-style coordinate variables and in recognition
147        that any/all grid variables can be easily copied (eg. w/NCO) from
148        the grid files into any of the other NetCDF files
149      - *always* output grid variables with MDSIO (this will eventually be
150        changed)
151      - output MNC grid file if useMNC is true
152    o every instance of _END_MASTER() has been found and replaced with
153      _END_MASTER( myThid ) in order to satisfy certain picky Sun
154      preprocessors
155    o re-arrange diagnostics pkg initialisation:
156     - allow each package to extend the available diagnostics list
157     - add some checking and fix small problems (multi-threaded, ...)
158     - new S/R diagnostics_fill (replace fill_diagnostics):
159       look through the short list of active diag. (instead of the long list)
160       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
161    
162    checkpoint57a_post
163    o this set of changes restores TAMC compatibility
164      tested for global_ocean.90x40x15 adjoint on trough
165      (what a pain)
166    
167    checkpoint57a_pre
168    o some modifs in tools/build_options for sunos
169    o call ctrl_pack for ctrl at end for optimcycle=0
170    
171    checkpoint57
172    o add horizontal bi-harmonic viscosity for vertical velocity
173      - new parameter viscA4W (defaults to viscA4)
174      - affects only non-hydrostatic code
175      - to be done: no-slip lateral boundary conditions
176    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
177    o implement Implicit Vertical advection for pTracers
178    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
179      (implemented also for implicit vertical diffusion & advection)
180    o OBCS: extend application of tracer open boundary conditions
181      to a strip beyond the boundary of width Olx/Oly
182    o add call monitor to TAF set of required calls (flow directives)
183      and include in natl_box_adjoint
184    o untangle a few ifdefs related to cost, ctrl, autodiff
185      untangel a few ALLOW_ECCO_OPTIMIZATION
186    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
187      (theta2, salt2 in ecco_cost_weights)
188    
189    checkpoint56c_post
190    o OBCS as control variables
191      - update ctrl_ad_diff.list, obcs_ad_diff.list
192      - remove balance of obcs controls from default
193      - fix index bug nobcs in ctrl_init
194      - fix dummy fields filen in ctrl_pack
195      - add dummy weights for obcs
196    o lsopt: comment out fort.94 output
197    o optim:
198      - remove unnecessary header files
199      - adjusted namelists
200      - add xerbla.F to Makefile
201    o exf:
202      - multiple modifications of exf_check_range
203      - unit change in exf_init_runoff from [m/year] to [m/s]
204    o mdsio:
205      - i/o-vector change debugLevel from debLevA to debLevB
206    
207    checkpoint56b_post
208    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
209      is called from DO_THE_MODEL_IO
210      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
211      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
212      - clean up PTRACERS_WRITE_TIMEAVE a little
213    o add another verification experiment that tests both the cfc-pkg and
214      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
215      reactive tendencies treated inline with regular timestepping
216    o testreport previously did a lousy job of comparing small numbers, so
217      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
218      implemented in the little c-progam tmp_cmpnum.c which is embedded in
219      testreport.
220    o ptracers_monitor: bug fix for MPI
221    
222    checkpoint56a_post
223    o GCHEM: finish reorganizating the package
224      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
225        (introduces another 3D-array for each passive tracer, but only if
226        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
227        gchemTendency is not needed because the timestep is done separately)
228      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
229      - GCHEM is now---more or less cleanly---separate from PTRACERS
230      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
231        so clear to me how that should be done in a general way.
232    o CFC: improve formatting of output in CFC_ATMOS
233    o PTRACERS:
234      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
235        that ALL experiments with ptracers enable can be checked. This makes
236        GCHEM_MONITOR obsolete.
237      - include a runtime parameter PTRACERS_monitorFreq that defaults to
238        monitorFreq
239      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
240    o add PTRACERS (PTR0[1-5]) to testreport output
241    o exf_check_range:
242      * default changed to .TRUE.
243      * will check values for niter0 if debLevA, every timestep if debLevB
244      * STOP in exf_check_range if 'out of range'
245      * range chosen generous to allow for potential extema
246      TBD: a version with stricter range
247           permitted range would be runtime parameters
248    o GMredi:
249      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
250      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
251      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
252    o GCHEM:
253      - move call to GCHEM_FORCING_SEP, so that it is now called before
254        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
255      - introduced a useGCHEM runtime flag and applied it everywhere.
256      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
257        this flag is now only visible within GCHEM-pkg routines.
258      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
259        be replaced by a 3D array that is computed before thermodynamics; for
260        this, the tracer ID iTracer had to be included into the parameter list
261        of ptracers_forcing
262      - set up forward_step to call gchem_forcing, that will replace
263        gchem_forcing_int in ptracers_forcing
264      - cleaning up
265    o small cleaning of exch2: remove files that are also in eesupp/src
266    
267    checkpoint56
268    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
269    o mnc: cleanup "full" files--fixes out-of-memory problem
270    o ECCO-GODAE
271      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
272      * fully merged and updated from SIO code
273        windstress sign change affects
274        - exf_inscal_[u/v]stress
275        - sign of xx_tau[u/v] adjustments
276        - signs in cost_scat
277      * ctrl_get_gen: avoid update of tau[u/v] for first few days
278      * natl_box_adjoint updated and compressed
279      * 2-level checkpoint switch added
280        (tested in EXP. 1 of natl_box_adjoint)
281      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
282    o SVD
283      * first complete, non-hacked version for SVD calculations
284      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
285        performed via direct access files admtlm_vector.it????
286        (via ctrl_[un]pack)
287      * optimcycle is used for ARPACK iteration counter
288        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
289      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
290        and add linear transforms where necessary
291      * controls are initial/final SST, SSS (can be extended; need to check
292        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
293    o mdsio: filename info to both stderr, stdout
294    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
295      from sign change
296    
297    checkpoint55j_post
298    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
299      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
300    o add consistent build directories and .cvsignore files to verification
301    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
302    o make all subroutines 30 or less characters in length for certain older
303      compilers to work (a thorough search only turns up two routines in
304      pkg/ptracers)
305    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
306      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
307    
308    checkpoint55i_post
309    o change arrays for total vertical diffusivity (2.D if explicit,
310      3.D if implicit) ; each ptracer uses its own background value.
311    o added mnc/NetCDF output capability to ocn_compon_interf
312      - added bits to verification/cpl_aim+ocn so that it can run on
313        ITRDA and other clusters without the mpirun "-wd" option
314    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
315      configuration
316    o give MNC the ability to create additional files rather than
317      exceeding a specified file size limit "MNC_MAX_FILESIZE"
318      - the default is just less than 2GB which is a practical limit
319        on many systems
320    o Compute the non-local term using either KPP vertical diffusivity (=default)
321       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
322    
323    checkpoint55h_post
324    o add verification test "vermix"
325    o remove all the *_ioinc flags and replace with the single global
326      outputTypesInclusive flag
327    o allow to set a vertical profile of vertical diffusivity for T & S
328    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
329    o useMNC moved from data.mnc to data.pkg
330    
331    checkpoint55g_post
332    o Renaming carbon AD experiments to comply with testreport conventions
333    o Updating adjoint of Held-Suarez hs94.1x64x5
334    o Fixing directives for non-ECCO forward_step, after ECCO directives
335      have been fixed to avoid recomp. of do_oceanic_phys
336      Works well for global_ocean.90x40x15,
337      but recomp. issue remains for carbon
338    o Updating adjoint output for natl_box_adjoint after
339      pkg/ecco has been modified (see taga c55d_post)
340    
341    checkpoint55f_post
342    o rename to timeave_init_fixed
343    
344    checkpoint55e_post
345    o some delicate re-shuffle of store directives to avoid one
346      extra call of do_oceanic_physics
347      affects ecco_the_main_loop.F, do_oceanic_physics.F
348      checkpoint_lev1_directives.h
349    o NB: this may break global_ocean adjoint temporarily,
350      but it is clear how to fix it. Will do later, need this now.
351    
352    checkpoint55d_post
353    o ECCO specific cost function terms (up-to-date with 1x1 runs)
354    o ecco_cost_weights is modified to 1x1 runs
355    o modifs to allow observations to be read in as
356      single file or yearly files
357    o enable to read exf forcing fields as either
358      single file or yearly files (flag useExfYearlyFields)
359    checkpoint55d_pre
360    
361    o switch between 2-level and 3-level checkpointing
362    o add ability of MNC to write local and "partial" (eg. 2D slices where
363      the full 3D field is never actually stored) arrays to NetCDF files
364      with the correct (that is, the complete multi-dimensional) set of
365      array indicies
366      - used in mom_vecinv() to write the diagFreq output
367      - tested (demonstrated) in verification/aim.5l_cs
368    o further mnc-ification
369      - add verification/lab_sea to the list with mnc setups
370      - fix undefined mnc v-names in cd_code
371      - add kpp to mnc output (both snapshot and timeave)
372    o non-hydrostatic code
373      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
374        in calc_gw.F
375      - defaults to viscAh
376      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
377        friction or Leith) in non-hydrostatic mode, as long as there is
378        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
379    o pkg/cost
380      extend simple cost functions to treat time mean quantities
381      (T,U,V) via cost_accumulate_state from cost_tile
382    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
383        be 2 times larger than the minimum size the advection scheme requires.
384        now get a perfect conservation of salt in advect_cs test-exp (updated)
385    o GGL90 (Gaspar's TKE mixed layer)
386      - add horizontal diffusion of TKE, requires exchanges in
387        do_fields_blocking_exchanges, horizontal diffusivity is zero by
388        default. In OPA there is no horizontal diffusion of TKE but the
389        mixing coefficients are computed from a horizontal average of TKE of
390        6 points or so. I think that diffusion has a little more physical
391        justification.
392      - clean up ggl90_calc in the hope of reducing memory usage (this hope
393        was in vain)
394      - mask tke-variable in ggl90_init
395    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
396    o fix biharmonic diffusion on CS-grid.
397    o more obcs stuff
398      - added obcs_external_fields_load as an alternative to the EXF-pkg option
399        for reading boundary values. This routine is called from
400        obcs_prescribe_read
401      - updated obcs_check
402      - changed sponge layer relaxation parameter units for days to seconds
403      - turned off sponge layer by default
404      - changed argument list of OBCS_CALC to myTime+deltaTclock
405      - fixed about 35 bugs in obcs_external_fields_load
406    
407    checkpoint55c_post
408    o obcs stuff
409      - new runtime flags useOBCSprescribe, useOBCSbalance
410      - re-arranged obcs_calc
411      - moved exf_getobcs to obcs_prescibe_read
412        obcs_prescibe_read is called after ORLANSKI stuff
413        and independent of it (executable can contain all).
414      - updated obcs_check
415      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
416        These may be necessary only if tangential velocities are
417        prescribed at OB, not sure, needs testing.
418    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
419      which simplifies the calls and passes the ifc check-bounds test
420    
421    checkpoint55b_post
422    o add a 2D scalar, Z location, exchange_2 routine.
423    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
424      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
425      affects advect_cs results (for the wrong reason): update output.txt
426    o use a more standard discretization for biharmonic viscosity ;
427     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
428      affects results of dome set-up: update output.txt
429    o fix gad_advection.F (CubedSphere part), back to version 1.23
430    o fix bug in mom_vi_del2uv.F (CubedSphere part).
431    
432    checkpoint55a_post
433    o merged code to
434      * prescribe/read time-dependent open boundaries
435        (works in conjunction with exf, cal)
436      * sponge layer code for open boundaries
437      * each boundary N/S/E/W now has its own CPP option
438        (healthy for the adjoint)
439    
440    checkpoint55
441    o up-to-date adjoint of previous breaks
442      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
443      - global_ocean_ebm: adjoint still needs fix (TLM ok)
444      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
445      - carbon: * remove tr1-related adjoint verification
446                * add ptracer as control variable
447    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
448      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
449    
450    checkpoint54f_post
451    o in verification/carbin/ remove experiment related to
452      ALLOW_PASSIVE_TRACER (array tr1 etc)
453      code_ad/ input_ad/ results_ad
454    
455    o add two new packages
456      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
457        + subject to optimization (memory)
458      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
459        + subject to reordering (many GOTOs in the original code)
460        + so far opps is called for every (i,j) point, and then operates in
461          the vertical; one may want to reorder the scheme in order operate in
462          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
463          fields)
464    o overhaul of IO so that we now have flags for MDSIO and/or MNC
465      - all verification tests compile and run with linux_ia32_g77
466      - defaults are compatible with current input files--nothing
467        should change if you were not previously using MNC
468      - MNC output has been added in numerous places (eg. timeave)
469        but there are still a few writes not yet do-able with MNC
470        (this is in progress)
471      - flags now allow for either/or/both use of MDSIO and MNC and
472        documentation will soon follow
473      - numerous small formatting cleanups for ProTeX
474    o add version info (via BUILD_INFO.h) to MNC and stdout
475    
476    checkpoint54e_post
477    o add two new packages
478      - pp81 (Packanowski and Philander, 1981), Richardson number and
479        stratification dependent mixing
480      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
481      - these scheme operate in a similar manner as KPP (without ghat, of
482        course), however there is only one diffusivity that is used for both
483        temperature and salinity (and passive tracers)ç
484    o add offline package
485    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
486      provided by Stephanie Dutkiewicz
487    o genmake2: add ability to search for C compilers and cleanup test output
488      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
489    
490    checkpoint54d_post
491    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
492    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
493      leading to additional shift by 5 days each year of integration
494       (i.e. leading to considerable offset over the years)
495    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
496    o start with no AB and no initial filtering (staggerTimeStep):
497      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
498    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
499      (external loading & cpl import/export stay in forward_step.F)
500    o update coupling interface to work with new staggerTimeStep
501    o change MDSIO ptracers_pickup.
502    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
503    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
504    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
505    
506    checkpoint54c_post
507    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
508      this affects (truncation error) output.txt of test-exp:
509       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
510    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
511    o change Qnet to always be the net heat flux, (+upward).
512      affects (truncation error) output of natl_box exp.: updated
513    o define the max number of passive tracers in PTRACERS_SIZE.h
514    o start to test mnc routinely in exp0
515    o add sea-ice loading (sIceLoad) as a new forcing field.
516    
517    checkpoint54b_post
518    o add testreport "-j JOBS" option for parallel builds (tested and pretty
519       impressive on Altix and Opteron systems)
520    o diagnostics can now write NetCDF files through the mnc package
521    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
522    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
523    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
524      affects (truncation error) output of lab_sea & natl_box exp.: updated
525    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
526    
527    checkpoint54a_post
528    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
529    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
530    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
531    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
532      + internal_wave (shift in writing cg2d_ini_res)
533    checkpoint54a_pre
534    
535    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
536      - modified verification/lab_sea and natl_box_adjoint accordingly
537    
538    checkpoint54
539    checkpoint53g_post
540    o prepare splitting of thermodynamics: store convect.counter in common block
541    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
542      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
543    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
544    o new parameter "nShapS": allow to treat differently S from T (nShapT)
545    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
546    o restore adjointability
547    
548    checkpoint53f_post
549    o modifications that affect AIM experiment results (update output.txt):
550      - no advection of S at top interface Nr (pkg/generic_advdiff)
551      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
552    o AIM pkg:
553      - include stability function into surf.Flux derivative relative to Tsurf
554      - calculate clear-sky radiation & surface temp. change (for diagnostics)
555    
556    checkpoint53e_post
557    o merged cylindrical coord configuration
558    o added rotating_tank experiment
559    checkpoint53e_pre
560    
561    checkpoint53d_post
562    o faulks upgraded: re-generate output.txt that have changed:
563       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
564    o Added Bryan and Lewis, 1979, vertical diffusivity profile
565    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
566    o added Sadourny discretization of Coriolis
567      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
568      - re-enabled use of omega3 (useAbsVorticity)
569    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
570      vector-invariant equations
571      - note: does *NOT* yet use same variable visc. for no-slip BC's.
572    o recoded the lateral boundary conditions for non-hydrostatic w, this time
573      hopefully without new bugs
574      - still to do: biharmonic friction for non-hydrostatic w
575    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
576    o regenerated output for global_ocean_ebm (using -ieee)
577    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
578      of mom_common/
579      - simple re-arrangement of instructions within computing loop
580    checkpoint53d_pre
581    
582    checkpoint53c_post
583    o new version of coupler for AIM+thSIce and Ocean models
584     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
585     - land: change Evaporation of snow
586     - aim with thSIce: fix bug in snow-precip.
587    o changes to calc_gw.F
588     - bug fix for w^2 term near the bottom boundary
589     - (hopefully) improve the lateral slip boundary condtions for use with
590        partial/looped cells
591      - because the bug fix changes two verification experiments anyway (exp5
592        and plume on slope), change the lateral boundary condition from half slip
593        to the value of no_slip_sides
594    o ebm package wasnt quite up to the parallel task. Fixed that.
595    o Adjoint of EBM package + verification
596      * TLM OK
597      * ADM not sufficient accuracy yet (needs further testing)
598    
599    checkpoint53b_post
600    o Commiting new energy balance model to repository
601      * package is pkg/ebm
602      * verif. is verification/global_ocean_ebm
603      * references are in ebm_driver.F
604    C      * X. Wang, P. Stone and J. Marotzke, 1999:
605    C        Global thermohaline circulation. Part I:
606    C        Sensitivity to atmospheric moisture transport.
607    C        J. Climate 12(1), 71-82
608    C      * X. Wang, P. Stone and J. Marotzke, 1999:
609    C        Global thermohaline circulation. Part II:
610    C        Sensitivity with interactive transport.
611    C        J. Climate 12(1), 83-91
612    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
613    C        Destabilization of the thermohaline circulation
614    C        by atmospheric eddy transports.
615    C        J. Climate 7(12), 1870-1882
616    o Will need long integration testing.
617    checkpoint53b_pre
618    
619    o created pkg/mom_common in preparation for variable viscosity code
620    o renamed and split ini_mnc_io
621    o pkg/land: only liquid water can diffuse or run-off
622    o AIM using land: soil wetness availability account for snow
623    o added printMapIncludesZeros to EEPARMS namelist
624    
625    checkpoint53a_post
626    o restore TAMC compatiility for exf_constants.h
627      (no usage of _d in .h)
628    o Additional storing in KPP in an attempt to fix
629      TAMC problem with adjoint of KPP code.
630      (no success...)
631      Identical code works fine with TAF.
632    o Fixed verification/natl_box_adjoint experiments.
633      Initial conditions for Experiments 4 and 5 are now
634      set to "SEAICE_initialHEFF=0", which is more reasonable,
635      and hence gives results closer to that of Experiment 2.
636      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
637    
638    checkpoint53
639    o stable checkpoint with up to date adjoint
640      TLM tests only run for 1st grdchk at the moment. Its unclear if
641      this is a code problem or a problem with resetting code for g_
642      variables that is being autogenerated wrong.
643      Otherwise:
644       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
645       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
646         are both still in chaos following their security messes.
647    
648    checkpoint52n_post
649    o various build (mostly genmake2) changes including:
650      - ability to build/run more easily within Cygwin and MacOS X
651      - more complicated Makefiles with a stronger dependence on Gnu Make
652    o pkg/seaice modifications
653      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
654        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
655        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
656      - changed proxy for geostrophic velocity and updated
657        verification/lab_sea/results/* accordingly
658      - removed ADI dynamic solver from pkg/seaice
659      - replaced all occurrences of 1/CSTICE or 1/CSUICE
660        they caused a segmentation fault under certain circumstances
661      - removed unused field WATR
662    o bug fix in exf-package:
663      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
664         now reflect that.
665    o small fixes in the cal-package:
666      - set reference date to first of January for the 'model'-calendar
667      - failing of cal_CheckDate in cal_FullDate now actually results in a
668        warning
669    o small modifications in exf-package to increase flexibility:
670      - change climtempfreeze from a constant to a runtime parameter that
671        is specified in data.exf_clim (default = -1.9)
672      - introduce runtime parameter windstressmax (default = 2.0) that is
673        specified in data.exf
674    o fix in pkg/thsice:
675      - update Evap (Tsf changes) to be consistent with Latent heat flux
676      - maintain snow precipitation unchanged (even if Tsf >=0).
677     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
678    
679    checkpoint52m_post
680    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
681      this does not change any of the results, because myIter=0 in swfrac always
682      lead to jwtype=2 (the default anyway), but the call makes little sense
683      as a default
684    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
685    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
686      atmospheric model (AIM) to use it ; add a "slab ocean" component.
687    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
688    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
689    o extending useSingleCpuIO option to work with new exch2 I/O format
690      - old-style, missing-tile I/O is still accessible by defining CPP
691        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
692    o monitor package can write to NetCDF files and/or STDOUT
693    o fix re-definition bug in MNC_GRID_INIT_ALL()
694    o doc/api_reference added
695      - a framework for building an API Reference Manual using all
696        the "protex" comments embedded in the code
697      - see pkg/generic_advdiff, pkg/mnc for examples
698    o MNC:
699      - make myThid the last argument for all subroutines
700      - new default for the grid files: NO halos
701      - add useMNC and other run-time flags
702      - separate per-file-group handling of the unlimited dimension
703      - early initialization of MNC w/ flags read at the eeboot stage
704        and lookup tables set in initialize_fixed
705      - write all MNC output to a freshly-created directory
706    o thermodynamics sea-ice (thsice) is now tested with testreport.
707    o test exp. advect_cs: use the standard cs32 grid ; update output.
708    o Added functionality to grdchk:
709      pick global i,j,k position (or nearest wet) where to perform check.
710    
711    checkpoint52l_post
712    o new land formulation:
713      a) use ground enthalpy as prognostic variable to ensure exact
714         energy conservation.
715      b) account for water temperature and for latent heat of freezing
716         in all processes (rain, run-off, ground storage)
717      c) compute surface and ground temperature implicitly.
718    o aim_v23 modification for new land model:
719      a) Treat separately land / ocean / sea-ice surface fluxes
720         to allow implicit computation of land & sea-ice surface temp.
721      b) add snow precipitation.
722    checkpoint52l_pre
723    
724    o fix problem (when 1 tile is empty) in min/max monitor.
725    o fix bug in timeAve (u,vZetatave in common block)
726    o no restoring terms under ice for pkg/seaice
727    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
728    o bug fix for pkg/seaice pickups
729    o change MNC call locations and add coordinate attributes
730    o mask vorticity at the corner ; affects global_ocean.cs output
731    o fix ini_curvilinear_grid ; test CS experiments with mpi
732    o aim.5l_cs: modify sea-ice fraction input file ; update output
733    o exf: Adding simple range check routine for exf fields after read
734    
735    checkpoint52k_post
736    o removed top-level directory "diags"
737      - we migrated these functions to pkg/timeave a long time ago
738    o fixed bug introduced in pkg/monitor
739    o accuracy ctrlprec = 32 insuffient for gradient checks using
740      averaged fields (I/O via cost_averages)
741      -> use ctrl.h in active_file*.F to control I/O precision.
742    o paramter list of CALL ADTHE_MAIN_LOOP
743    o added initial do_the_model_io to ecco
744    o set all ...Freq to zero after cost_final
745      taveFreq, dumpFreq, pChkptFreq
746    o MAIN and ECCO differentiability restored
747    
748    checkpoint52j_post
749    o fix nchklev in tamc.h for global_ocean...
750    o Bringing flow and store directives up-to-date
751    o Really weird thing!
752      call do_the_model_io from the_main_loop with parameters
753      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
754      TAF places a faulty re-call of initialise_varia
755      after cost_final call which should not be there!
756    checkpoint52j_pre
757    
758    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
759      error messages
760    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
761    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
762      debug output
763    o modfied mdsio_writefield.F to handle non-global files under exch2
764    o update AIM Cubed-Sphere exp (aim.5l_cs):
765      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
766    o update AIM Equatorial Channel exp:
767      use standard aim_v23 pkg and change the SST fields to be more realistic.
768    o globalFile now works with exch2
769    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
770      mon_vort3.F to make exch2 friendly with >1 tile per cube face
771    o limit timeave output for hi-res integrations
772    
773    checkpoint52i_post
774    o removed CPP_EEOPTIONS.h from verification/*/code
775    o updated the tiling for global_ocean_pressure
776    checkpoint52i_pre
777    
778    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
779      the old pkg/aim).
780    
781    checkpoint52h_pre
782    o shortened offending lines in exch2_send_rx?.template
783    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
784    o genmake2: add build & execute test for NetCDF code
785    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
786      old grid files, moved CPP_EEMACROS.h to pkg/exch2
787    o added useSingleCPUIO flag to monitor.F and mon_out.F
788    o added temporary hack for sea-ice dynamics on the cube:
789      metric terms are ignored and it is assumed that
790      there is no sea-ice on cube faces 1, 2, 4, and 5.
791    
792    checkpoint52f_post
793    o added exch2 cube routines to pkg/exch2
794    o modified hs94.cs-32x32x5 to use it
795    o added new grid files to hs94.cs-32x32x5
796    checkpoint52f_pre
797    
798    checkpoint52e_post
799    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
800      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
801    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
802      to work with implicit vertical advection and AB ;
803    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
804    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
805     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
806    checkpoint52e_pre
807    
808    o fix bug in impldiff when Nr=1 or Nr=2.
809    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
810    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
811    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
812      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
813    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
814    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
815    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
816    
817    checkpoint52d_post
818    o re-tiled many expts to allow comparison in multi-processor mode
819      - updated output accordingly
820      - changed hs94.128x64x5 to use intial T from file rather than use the
821        random number generator
822    o add infrastructure in model routines for fizhi and gridalt packages
823    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
824    o changes to permit hi-res, cubed-sphere, configuration
825      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
826      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
827      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
828        of surface winds for the cube
829      (A verification experiment, based on global_ocean.cs32x15, but with
830       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
831       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
832       complete with example surface forcing files and matlab scripts to look
833       at the output and compare it with that of global_ocean.cs32x15.)
834    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
835       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
836       to conform to the common rule.
837    o check-in the first version of the coupler + interfaces for multi-components
838       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
839       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
840       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
841       - ocean and atmos. share the same horizontal grid (no interpolation).
842       - exchanges between component and coupler is done in forward_step
843    o new verification experiment, cpl_aim+ocn:
844       coupled ocean - AIM atmosphere on cs32 grid.
845    
846    checkpoint52d_pre
847    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
848    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
849    
850    checkpoint52c_post
851    o Fixing OPTIONS files for use of exf:
852      - ALLOW_ECCO not needed
853      - ECCO_CPPOPTIONS.h should not be included from
854        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
855        as has been the case in the past
856      - All cal/exf related options are currently set in
857        single header file. Should remain so until we
858        agree on a consistent new policy.
859    o Removed all CPP options for cal package.
860      cal has no more CPP options.
861    o modified STOREs in GAD_ADVECTION
862    o corrected key comp. for passkey
863    
864    checkpoint52b_post
865    o new version: "thsice" of thermodynamic sea-ice pkg:
866     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
867     - modify fluxes but do not change theta directly;
868     - light cleaning of bulk_force pkg (still needed with thsice).
869     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
870       + output_thsice.txt to test thsice & bulk_force pkgs.
871    o put back grid & coriolis monitor output.
872    checkpoint52b_pre
873    
874    o call "do_the_model_io" at the beginning (=> dump initial state)
875    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
876    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
877      (need info on NUMBER_OF_PTRACERS)
878    o missing PTRACERS headers in some routines
879    o default tamc.h in pkg/autodiff supposed to crash
880      to ensure proper customization
881    
882    checkpoint52a_post
883    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
884      - moved surfaceTendencyTice from pkg/seaice to main code
885      - subroutine FREEZE_SURFACE now limits only surface temperature
886        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
887        => new output.txt for global_ocean.cs32x15 & global_with_exf
888      - keep the old version of FREEZE for backward compatibility;
889        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
890      - corresponding modifs for TAF directives
891    o added surface flux output variables to TIMEAVE_STATVARS
892    o time-averaged output for pkg/ptracers
893    o fix problem with ECCO-related divided adjoint
894      snapshot file was missing some ad-variables,
895      but no warning issued by TAF
896    
897    checkpoint52a_pre
898    o some bug fixes for #undef REAL4_IS_SLOW
899    
900    checkpoint52 = ecco_c52_e35
901    o after testing adjoints of checkpoint51u_post
902    
903    checkpoint51u_post
904    o this is the post-merge tag of the ecco-branch
905      (needs another clean checkout and re-testing)
906    o various natl_box_adjoint configs and results
907      but no input fields
908    o obcs adjoint not yet merged!
909    o adding ECCO global 1x1 and 2x2 degree configs
910    o updated/extended some store directives for seaice
911    o pkg/ecco now containes ecco-specific part of cost function
912    o top level routines the_main_loop, forward_step
913      supersede those in model/src/
914      previous input data.cost now in data.ecco
915      (new namelist ecco_cost_nml)
916    o in ctrl/ cleaned some cross-dependencies and updated CPP options
917    
918    checkpoint51t_post
919    o this is the pre-merge tag of the ecco-branch
920    
921    checkpoint51s_post
922    o cleanup: removed various obsolete #define-s
923    o pkg/grdchk
924      - renamed 'ph-grd 3' to 'grad-res'
925      - merged from ecco-branch
926        (remaining bug fixes for obcs gradient checks)
927      - additional high-precision output for testreport
928        (grep for 'precision_grdchk_result')
929    
930    checkpoint51r_post
931    o cleaned up or removed CPP_OPTIONS.h files
932    o updated results for some of the tests to reflect the new
933      optfiles (-ieee: -O0 instead of -O3)
934    
935    checkpoint51q_post
936    o cd_code:
937      - moved cd_scheme.F -> cd_code_scheme.F
938      - separate read_checkpoint from cd_code_ini_vars.F
939      - separated cd_code part from write_checkpoint
940      - updated AD_SOURCE, generated .flow
941      - added CD_CODE_VARS.h to the_main_loop
942      - Moving cd_code specific store dir.s to pkg/cd_code
943    o ctrl package totally restructured
944      - pack/unpack now optional and decoupled from
945        xx_/adxx_ I/O
946      - ctrl_pack/unpack cleaned
947        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
948      - confined inclusion of AD_CONFIG.h to where necessary.
949    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
950    
951    checkpoint51p_post
952    o create initial cd_code package
953      - WARNING: the initialization of fields within packages
954        is broken because INI_FIELDS (where READ_CHECKPOINT is
955        called) is called *before* PACKAGES_INIT_VARIABLES.
956        This seems to be backwards since
957        1) its important to initially zero the entire field including
958           the "halo" region
959        2) zeroing needs to be done *before* reading pickup info
960           and the pickup call might or might not happen in any
961           particular run
962      - this needs an overhaul for R2
963    o cleanup verification/*/code/GMREDI_OPTIONS.h
964    o cleanup testreport
965    
966    checkpoint51o_post
967    o bringing AD-related verif's up to date with genmake2
968      - carbon/
969      - global_ocean.90x40x15/
970      - hs.94.1x64x5/
971      - (front_relax/ )
972    o (more) consistent directory structure for AD-related verif.'s
973    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
974    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
975    o bug fix in find_alpha.F for MDJWF:
976      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
977        change rho -> rho-rhoConst
978      - replace call find_rho to find_rhonum
979    o initialisation of rFlx extended to full array (required by TAF)
980      and shifted to thermodynamics
981    o removed PTRACERS.h in ptracers routine
982    o added surfacetendencyPtr to S/R parameter list pracers_forcing
983    o Correcting initialisations for fVerU, fVerV.
984    o helping TAF to recognize dependency on kUp for
985      fVerU, fVerV
986    o Replacing delZ by delR in pkg/ctrl/
987    checkpoint51o_pre
988    
989    o undid all of cp51 pending some cleanups and discussion
990    o added the [#include "AD_CONFIG.h"] statement to all files that need
991       it for adjoint/tl #defines
992     o re-worked the build logic in genmake2 to support AD_CONFIG.h
993     o removed tools/genmake since it no longer works
994    
995    checkpoint51n_post
996    o modifications to make FREEZE flux visible to pkg/kpp
997      - moved surfaceTendencyTice from pkg/seaice to main code
998      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
999      - subroutine FREEZE now limits only surface temperature
1000        (this means new output.txt for global_ocean.90x40x15,
1001         global_ocean.cs32x15, and global_with_exf)
1002    o added surface flux output variables to TIMEAVE_STATVARS
1003    
1004    checkpoint51n_pre
1005    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1006    o added [#include "AD_CONFIG.h"] to all files that use the following
1007      defines:
1008      - ALLOW_ADJOINT_RUN
1009      - ALLOW_TANGENTLINEAR_RUN
1010      - ALLOW_ECCO_OPTIMIZATION
1011    
1012    checkpoint51m_post
1013    o incorporating changes to get TAMC/TAF working in genmake2
1014      - added new TAMC/TAF targets to the Makefile
1015      - various cleanups related to package handling
1016      - these changes should have no impact on the forward model
1017    
1018    checkpoint51l_post
1019    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1020     - faster algorithm for cal_addtime.F
1021     - higher precision arithmetic, where needed
1022     - pkg/exf *startdate variables changed from calendar date to
1023       model integration time
1024    
1025    checkpoint51l_pre
1026    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1027    o enable to apply restoring on S & T only in a latitude band.
1028    o update output (external_forcing_surf modif. change truncation errors)
1029       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1030    
1031    checkpoint51k_post
1032    o change default to: useNHMTerms=.FALSE.
1033     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1034       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1035     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1036        exp1, ideal_2D_oce
1037     - change data file of oceanic exp (leave the results unchanged for now)
1038       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1039    o set gravitySign automatically according to the vertical coordinate used
1040      (and change sign: back to "logical" value: +1 when R increases downward)
1041    o added an include barrier to the default CPP_OPTIONS.h and
1042      removed the #include "PACKAGES_CONFIG.h" from it
1043    o fix a bug in mom_fluxform (from chk51j_post)
1044    
1045    checkpoint51j_post
1046    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1047    o adjusted some flow directives (dynamics, thermodynamics)
1048    o added cubed-sphere case to test cost function
1049    o heckpoint_lev?_directives.h now include
1050      pkg-specific directives, whenever those are enabled.
1051    o Moving pkg-specific flow directives to corresponding pkg
1052      Moving pkg-specific differentiation list to corresponding pkg
1053      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1054      ---> conventions are
1055           - pkg_ad.flow
1056           - pkg_ad_diff.list
1057           - pkg_ad_check_lev?_dir.h
1058    
1059    checkpoint51i_post
1060    o merge of the branch-genmake2
1061      - knowingly breaks the older genmake
1062      - automatic generation of all ALLOW_${PKG_NAME} defines
1063      - new testreport supersedes older testscript
1064    o large number of package inclusion and header cleanups
1065    checkpoint51i_pre
1066    
1067    o new output for adjoin of global ocean vector invariant
1068    o fix for checkpoint of thermodynamic seaice and bulk_force
1069    o Steph gchem various cleanups
1070    
1071    checkpoint 51h_pre
1072    o fixed some single quotes
1073    o modify gchem pkg to be more versatile
1074    o modifications to clean up dic pkg
1075    o add pkg/cfc
1076    
1077    checkpoint51g_post
1078    o provide links for ARPACK and ADM*TLM
1079    o start removing verification/vero/
1080    o update AD-related stuff
1081      (in particular some IF-statements in model/src/ routines)
1082    o adding to verification/global_ocean.90x40x15/ adjoint of
1083      vector invariant setup
1084    
1085    checkpoint51f_post
1086    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1087    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1088      of tracer Green's fucntions for ocean inversion project.
1089    
1090    checkpoint51f_pre
1091    o Added on-the-fly spatial interpolation capability
1092        "USE_EXF_INTERPOLATION" to pkg/exf.
1093      - This is a temporary Cartesian-grid hack until
1094        the super-duper ESMF coupler becomes available.
1095      - See verification/global_with_exf/README for usage example.
1096      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1097        flags and modified pkg/seaice accordingly.
1098    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1099        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1100        non-local transport term.
1101    
1102    checkpoint51e_post
1103    o pkg/mom_vecinv:
1104      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1105      - add time-ave diagnostic of vorticity advection.
1106    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1107    o atmospheric geopotential: - include water vapor effect;
1108                                - use p^kappa in p* scaling.
1109    o land pkg: read initial state from files.
1110    o AIM : add stratospheric drag in the upper level
1111    
1112    checkpoint51d_post
1113    o change function ILNBLNK (=> last non-blank char.) to return zero
1114      (instead of the string length) when the string. char is empty
1115    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1116    o modif's to restore TAMC compatibility
1117      - avoid "_d" constructs in PARAMETER declarations
1118      - avoid interrupting lines by comment lines
1119    o Use cluster local disks for purely local I/O
1120      vs. globally visible disks needed for ctrl stuff
1121      (merged from ecco-branch)
1122      - new active_file_loc... and mdsio_..._loc routines
1123      - affected packages: autodiff, ctrl, grdchk, mdsio
1124    
1125    checkpoint51c_post
1126    o introducing integer flag debugLevel
1127      - debLevZero: suppress all output
1128      - debLevA: standard
1129      - debLevB: equivalent to current debugMode=.TRUE.
1130    o introducing pathname variable mdsioLocalDir for mdsio
1131      that can be specified at runtime
1132      (relevant for cluster I/O to local disk)
1133    `
1134    >>>checkpoint51b_post
1135    adjoint of ptracers
1136    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1137    o extended state in checkpoint_lev?, etc.
1138    o alternative ctrl/cost with tr1 or ptracer
1139    o new comlev1_bibj_ptracers
1140    o new ptracers.flow
1141    o made ptracers_forcing same as external_forcing_s
1142    o added verification for adjoint with ptracers
1143      - adm. grdchk fail so far
1144      - tlm. grdchk OK
1145      - checked tapelev/comlev recomputations: OK
1146    <<<checkpoint51b_pre
1147    
1148    checkpoint51a_post
1149    o added code for biogeochemistry package
1150      - new pkgs: dic, gchem
1151      - new subroutine in ptracers
1152    o modify code for biogeo packages
1153      - in model/src and pkg/ptracers
1154    
1155    checkpoint51
1156    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1157      - autodiff, ctrl, exf, grdchk, seaice
1158      kept separate packages
1159      - cost, ecco, obcs
1160    o updating verification/internal_wave, verification/lab_sea
1161      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1162    
1163    checkpoint50i_post
1164    o Preparing next differentiable checkpoint and sync
1165      of MAIN vs. ecco-branch
1166      - 1st step: this one is differentiable
1167      - 2nd step: next(! not this) checkpoint will have updated packages
1168                  from ecco-branch)
1169    
1170    checkpoint50h_post
1171    o new package "land": provide surface BC for AIM.
1172    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1173    o AIM: use true log-P extrapolation for near surface temp (= as in
1174        F.Molteni paper) ; update aim.5l_cs output.
1175    o New variable in PARM03 for more flexible pickups
1176    o somewhat cleaned package initialisation sequence for
1177      ctrl/ cost/ ecco/ in packages_... routines
1178    
1179    checkpoint50g_post
1180    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1181      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1182      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1183        made the default because of faster convergence than ADI
1184    
1185    checkpoint50f_post
1186    o exf totally restructured
1187      - replaced all exf_set_ routines by one generic exf_set_gen.F
1188        and made sure it's still differentiable
1189      - split exf_getffields.F into new exf_bulkformulae.F
1190      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1191      - updated adjoint/makefile and relevant verif. accordingly
1192    
1193    checkpoint50f_pre
1194     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1195          + change Evap over land. (update aim.5l_cs output)
1196     o added missing .cvsignores and made uniform across expts
1197     o changed configuration of tidal_basin_2d expt
1198     o added pkg/debug functions for tracing code in fatal crashes
1199     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1200     o new fn in pkg/monitor to stop model if solution grows too big
1201     o removed lots of single quotes from comments
1202    
1203    checkpoint50e_post
1204    o make KPP work with PTRACERS
1205     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1206       nearly a copy of kpp_transport_s
1207     - there is no analogue to SurfaceTendencyS, so I have to use
1208       gPtr(of the surface layer) instead
1209    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1210    checkpoint50e_pre
1211    
1212    checkpoint50d_post
1213    o change kpp output from multiple-record state files to single-record state
1214      files analogous to write_state.F
1215    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1216      analogous to the cg2d-related output.
1217    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1218      so that writing to internal file fn (with length 512) fails.
1219    checkpoint50d_pre
1220    
1221    checkpoint50c_post
1222    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1223    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1224    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1225    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1226    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1227    
1228    checkpoint50c_pre
1229    Merging from release1_p13:
1230    o bug fix for pkg/seaice dynamic solver
1231    o Added SEAICE_initialHEFF to pkg/seaice
1232    
1233    checkpoint50b_post
1234    o store u*,v* in gU,V instead of in guNm1,gvNm1
1235    o in order to put the momForcing out of the Adams-Bashforth:
1236      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1237      to timestep.F
1238    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1239    o re-generate output for highly sensitive test-exp:
1240       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1241    
1242    checkpoint50b_pre
1243    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1244    o corrected CPP option mismatch in exf_Bulk... functions for case
1245      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1246    
1247    checkpoint50a_post
1248    o Bug fix for merging between c50 and KPP.
1249      ikey was passed from thermodynamics to kpp_calc via
1250      common block rather than being recomputed in kpp_calc,
1251      in contradiction with new key itdkey.
1252      New key ikppkey created, and tamc.h headers updated.
1253    
1254    checkpoint50
1255    - 2nd step of merge with ecco-branch:
1256      merge changes in ecco-branch back into main trunk
1257    - bug fix in find_alpha
1258    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1259    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1260    - merged some sliced AD support routines
1261    
1262    checkpoint49
1263    merged from ecco-branch:
1264    o exf:
1265      - Enable initialisation of forcing fields to constant
1266        (runtime) values.
1267      - in exf_getffields.F
1268        Reduce i-/j-loop to interior domain, discarding overlaps.
1269        That also fixes wrong TAF-key computations for key_1, key_2
1270        with bulf formulae.
1271      - exf_init.F modify #ifdef for exf_init_evap
1272      - exf_getffieldrec.F, ctrl_getrec.F
1273        The following INT-usages are not safe:
1274          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1275          fldcount = int(fldsecs/fldperiod) + 1
1276        and were modified.
1277    o autodiff: checkpoint_lev...
1278      - updated storing for bulk formulae (some arrays were missing)
1279      - added state for seaice package
1280      - synchronized with main branch
1281    o DIVA:
1282      Modif.s in
1283      - the_main_loop.F
1284      - the_model_main.F
1285      and added cost_final_restore.F cost_final_store.F
1286      o With these changes, it is possible to fully separate
1287        the first forward run to compute the cost function (mdthe_main_loop)
1288        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1289        into separate model executions.
1290        This enables better tuning of DIVA to given queue sizes.
1291      o Loss of cost function value in consecutive DIVA runs is
1292        fixed by storing to 'costfinal' file.
1293      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1294        beginning/end of adjoint integration is accounted for.
1295      The current changes apply to TAF-1.4.26.
1296      TAF has one remaining bug, requiring one manual change
1297      (see MITgcm manual).
1298    o cal: synchronized between MAIN and ecco-branch
1299    
1300    checkpoint48i_post
1301    o Changes to restore differentiability of code w.r.t. previous tag
1302      (mostly adding new routines to make list and replacing
1303      pressure by totPhiHyd).
1304    o Updated and merged grdchk package
1305      - has both ADM and TLM checks
1306      - works for single- and multi-proc.
1307      - output cleaned
1308      - worked successfully for parallel DIVA
1309    o genmake:
1310      - Adding -platform=SP4
1311      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1312    o Modif. for DIVA:
1313      ctrl_unpack should not be called in intermediate DIVA interval.
1314      (similar thing would apply for active files such as
1315      tbar, sbar, psbar, which should not be reinitialised;
1316      only relevant for ecco-branch)
1317    
1318    checkpoint48h_post
1319    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1320    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1321    o Added SEAICE_initialHEFF to pkg/seaice
1322    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1323    
1324    checkpoint48g_post
1325    --- EOS:
1326    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1327      store total Potential in totPhyHyd for diagnostics & EOS.
1328    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1329    --- Pressure/geopotential gradient:
1330    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1331    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1332      ( changes results of global_ocean_pressure )
1333    o NLFS + z-coord.: add eta*Rho' contribution.
1334    o accurate phiHyd when using interface-W at the middle between 2 centers
1335     ( changes results of ideal_2D_oce )
1336    o includes r* 2nd term in potential gradient.
1337    
1338    checkpoint48f_post
1339    Merging from release1_p12:
1340    o Modifications for using pkg/exf with pkg/seaice
1341      - improved description of the various forcing configurations
1342      - added basic radiation bulk formulae to pkg/exf
1343      - units/sign fix for evap computation in exf_getffields.F
1344      - updated verification/global_with_exf/results/output.txt
1345    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1346      (SBO) core products, including oceanic mass, center-of-mass,
1347      angular, and bottom pressure (see pkg/sbo/README.sbo).
1348    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1349      to avoid negative values in shallow regions.
1350      - updated verification/natl_box/results/output.txt
1351      - updated verification/lab_sea/results/output.txt
1352    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1353    o Added useSingleCpuIO option (see PARAMS.h).
1354    o Updated useSingleCpuIO option in mdsio_writefield.F to
1355      work with multi-field files, e.g., for single-file pickup.
1356    o pkg/seaice:
1357      - bug fix in growth.F: QNET for no shortwave case
1358      - added HeffFile for specifying initial sea-ice thickness
1359      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1360    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1361      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1362    o pkg/seaice:
1363      - adjoint-friendly modifications
1364      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1365    
1366    checkpoint48e_post
1367    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1368    o dynamics: change definition of computational domain & adapt mom_fluxform
1369      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1370    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1371        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1372        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1373        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1374        inverted_barometer solid-body.cs-32x32x1
1375      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1376    
1377    checkpoint48d_post
1378    o in preparation for r*:
1379     a) use pre-computed gradient of hydrostatic potential:
1380        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1381     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1382        => affects results of glob_oce_pressure (different truncation error)  
1383      update output.txt of ideal_2D_oce & global_ocean_pressure
1384    
1385    checkpoint48d_pre
1386    o in preparation for r*:
1387      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1388      pass the 2 comp. of the grad. as arguments to momentum S/R.
1389      but for the moment, only used if it does not change the results.
1390    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1391    
1392    checkpoint48c_post
1393    Modifications in treatment of initial flux forcing controls
1394    to avoid extra storing of flux fields.
1395    
1396    checkpoint48c_pre
1397    o Added tidal_basin_2d experiment (currently 1D!)
1398    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1399    
1400    checkpoint48b_post
1401    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1402     (modification to pressure gradient not yet implemented)
1403    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1404      (for U & V) that are used for vertical advection of momentum.
1405    
1406    checkpoint48a_post
1407    o In preparation for r*, use temp. array to compute vertical transport
1408       in flux-form momentum pkg. => change results of few test-exp.
1409      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1410                        lab_sea, natl_box & plume_on_slope
1411    
1412    checkpoint48
1413    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1414    
1415    checkpoint47j_post
1416    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1417    o moved adexch from forward_step to addummy_in_stepping
1418    o added exch in ctrl_map_...
1419    o aveFreq.=0. at end of cost_final to avoid overwrite in
1420      reverse checkpointing loop
1421    o Yet more changes in gmredi:
1422      * adgmredi_calc_tensor
1423        avoiding all recomputation of gmredi_slope_limit
1424      * adgmredi_x/y/rtransport
1425        added flag for excessive storing to avoid recomp. of
1426        u/v/rtans, dTdx/y/z
1427        -> this is not really necessary and very memory-consuming
1428      * adgmredi_slope_psi:
1429        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1430      * gmredi_slope_limit
1431        re-activated full calculation of taperfct for case 'ac02'
1432    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1433    
1434    checkpoint47i_post
1435    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1436    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1437      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1438    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1439    o gmredi: fix few bugs.
1440    
1441    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1442    This will be a good checkpoint to plug into the ecco-branch.
1443    o few modif.'s to get latest version adjointed
1444      (mainly kick out code in ini_linear_phisurf)
1445    o modif's to run adjoint with exactConserv
1446    o case GM_BOLUS_ADVEC should be cleaned
1447      S/R gmredi_slope_psi should be cleaned
1448    o verification/carbon now has exactConserv=.TRUE.
1449    
1450    checkpoint47g_post
1451    o time-average AIM output: becomes independent from statvars time-average
1452      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1453    o After TAF bug fix:
1454      Tested adjoint of gmredi package.
1455      Tests were done with checkpoint47 rather than with latest
1456      checkpoint47f_post since the latter is broken for the adjoint
1457      verification/carbon/ contains both ADM and TLM gradient checks.
1458    Here they are, before they get changed/lost/stolen.
1459    Mostly modif.'s to fix numerical sensitivities.
1460    Gradient checks OK for
1461    - GM_taper_scheme:
1462      * clipping
1463      * ac02
1464      * linear
1465      * glw91
1466      * dm95
1467      * ldd97
1468    - GMREDI_OPTIONS:
1469      * GM_VISBECK_VARIABLE_K
1470      * GM_NON_UNITY_DIAGONAL
1471      * GM_EXTRA_DIAGONAL
1472      * GM_BOLUS_ADVEC
1473    in conjunction with data.gmredi parameters to be checked in
1474    in a few minutes under verification/carbon/code/
1475    
1476    checkpoint47f_post
1477    Merging from release1_p10:
1478    o modifications for using pkg/exf with pkg/seaice
1479      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1480        and SEAICE_EXTERNAL_FLUXES
1481      - pkg/exf CPP options EXF_READ_EVAP and
1482        EXF_NO_BULK_COMPUTATIONS
1483      - usage examples are Experiments 8 and 9 in
1484        verification/lab_sea/README
1485      - verification/lab_sea default experiment now uses
1486        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1487    
1488    checkpoint47e_post
1489    o created a tag prior to creating a branch
1490    
1491    checkpoint47d_post
1492    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1493      at the bottom boundary had an erroneous half slip boundary condition
1494    o added bottom drag and no slip boundary condition capabilities to
1495      oceanic pressure coordinates code
1496    o added new verification experiment global_ocean_pressure, this experiment is
1497      also described in the tutorial section of the manual
1498    checkpoint47d_pre
1499    
1500    checkpoint47c_post
1501    o Added a verification experiment for a global cubed-sphere ocean run
1502      -  verification/global_ocean.cubed32x32x30
1503      -  uses pkg/therm_seaice and pkg/bulk_forcing
1504    
1505    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1506    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1507      when using P-coordinate; only implemented for atmospheric config.
1508    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1509      NOTES: requires option NONLIN_FRSURF to be "#define".
1510    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1511    
1512    checkpoint47b_post
1513    Merging from release1_p9:
1514    o pkg/seaice
1515      - removed GOTO's and added taf directives
1516      - double precision constants to reduce the g77 (Linux)
1517        to F77 (SGI) differences reported in release1_p8
1518    o tools/genmake
1519      - added SGI options
1520    o verification/testscript
1521      - updated to that of checkpoint47a_post
1522    o verification/global_ocean.90x40x15/input/eedata
1523      - modified for SGI f77 compatibility
1524    o verification/lab_sea
1525      - added description of sea-ice model
1526      - added missing matlab routines
1527      - added test of thermodynamics parallelization
1528    
1529    checkpoint47a_post
1530    o new pkg: aim_v23
1531     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1532       for now, keep the same surface forcing as before.
1533     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1534     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1535     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1536    o add diagnostic of surface correction term in monitor output
1537    
1538    o bulk_force and therm_seaice
1539    - Two packages:  bulk_force (Bulk forcing)
1540      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1541    - Earlier integration from Stephaine Dutkiewicz
1542      and Patrick Heimbach.
1543    - Two ifdef statements for compile time,
1544       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1545    
1546    checkpoint47
1547    differentiable version of checkpoint46n_post
1548    o bug fix in quasihydrostaticterms
1549    o * "clean" adjoint code (in terms of extensive recomputations)
1550        can now be obtained for all GMREDI options (i.e. for
1551        - GM_VISBECK_VARIABLE_K
1552        - GM_NON_UNITY_DIAGONAL
1553        - GM_EXTRA_DIAGONAL
1554        - GM_BOLUS_ADVEC )
1555      * However, wrong gradient check problem remains unsolved.
1556      * New CPP options have been introduced for different
1557        tapering schemes
1558    o external_fields_load now part of differentiation list
1559    o pressure needs multiple storing;
1560      would be nice to have store_pressure at beginning or
1561      end of forward_step, e.g. by having phiHyd global (5-dim.)
1562      (NB: pressure is needed for certain cases in find_rho,
1563      which is also invoked through convective_adjustment).
1564    o recomputations in find_rho for cases
1565     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1566    o #define ATMOSPHERIC_LOADING should be differentiable
1567    o ini_forcing shifted to begining of initialise_varia
1568    o Incorporating QNVS line search routines into MITgcm
1569      (this is separate code, and therefore not under pkg)
1570      lsopt/, optim/
1571    o Updated verification/carbon/
1572      - #define GM_VISBECK_VARIABLE_K
1573      - GM_taper_scheme    = 'ldd97'    
1574    
1575    checkpoint46n_post
1576    Merging from release1_p8:
1577    o verification/natl_box:
1578      updating new external_fields_load routine
1579    o New package: pkg/seaice
1580      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1581      The sea-ice code is based on Hibler (1979-1980).
1582      Two sea-ice dynamic solvers, ADI and LSR, are included.
1583      In addition to computing prognostic sea-ice variables and diagnosing
1584      the forcing/external data fields that drive the ocean model,
1585      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1586      The implied surface heat flux is then stored in variable
1587      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1588      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1589      non-local transport term.  Because this call precedes model
1590      thermodynamics, temperature under sea-ice may not be "exactly" at
1591      the freezing point by the time theta is dumped or time-averaged.
1592      N.B.: fairly large differences in accuracy occur across
1593            different platforms/compilers; comparison between
1594            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1595            generated output gives:
1596       T           S           U           V
1597      C D M    c        m  s        m  s        m  s        m  s
1598      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1599      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1600      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1601    
1602      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1603    o GAD:
1604      - generated new common blocks to account for call of
1605        same gad routines with differing traceridentities
1606        (needed to modify tracerIdentity indices in GAD.h)
1607      - generated separate common blocks for case useCubedSphereExchange
1608        (Department of Futurology)
1609      - parameter lists to gmredi_?transport: added tracerIdentity
1610      - added new key indices to tamc.h
1611    o external_fields_load:
1612      - added this routine to TAF list
1613      - needed to make some common blocks global and additional storing
1614        along the same lines as exf package (checkpoint_lev?_directives.h)
1615    o exf:
1616      updated external forcing package
1617      - bug fixes carried over from ecco-branch
1618        (missing OBCS_OPTIONS.h in two routines)
1619      - enable easy to use "no forcing".
1620      - added exf I/O for atmospheric loading
1621      - added exf I/O for runoff data
1622      - transfered scaling between exf <-> MITgcm to exf namelist
1623    o Adding new verification experiment global_with_exf.
1624      This verification experiment is almost identical to the
1625      global_ocean.90x40x15 experiment, except that it uses
1626      the exf (and cal) package instead of the
1627      external_fields_load routine (cf README file).
1628    
1629    checkpoint46m_post
1630    o modified testscript to return -- when there are no lines of "%MON" output
1631    o added new flag "quasiHydrostatic" for QH mode
1632      and new routine quasihydrostaticterms()
1633    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1634      New routine: mom_u_coriolis_nh()
1635    o fixed sign of non-hydrostatic metric terms in u and v equations.
1636      Depend on correct sign of gravitySign.
1637    o added work.pc* to .cvsignore in aim directories using ifc
1638    o introduced flag for controllin non-hydrostatic metric terms
1639    o removed gravitySign from PARM04
1640    o switched to g77/ifc from pgf77 in aim experiments
1641    
1642    checkpoint46l_post
1643    o made convective adjustment work with pressure coordinates:
1644     - changed the direction of k-loop in convective_adjustment.F for the
1645       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1646     - adjusted the reference pressure k-index in convective_adjustment.F
1647     - adjusted the convection condition in convect.F (in analogy to
1648       calc_ivdc.F)
1649     - convective_adjustment no longer computes anything on the halos
1650     - removed the warnings about negative salinity from find_rho.F and
1651       find_alpha.F; instead the new routine look_for_neg_salinity, called
1652       at the beginning of find_rho, find_alpha, and find_beta, does a
1653       check of the entire slice, if CPP-option
1654       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1655    checkpoint46l_pre
1656    
1657    checkpoint46k_post
1658    o fixed the verification/global_ocean.90x40x15 experiment:
1659     - new bathymetry (the world according to A., JMC, and M.)
1660     - new initial fields and forcing fields (*.bin files)
1661     - new POLY3.COEFFS (for the next release one should switch to a full
1662       equation of state: JMD95P or MDJWF)
1663     - fixed several errors and redundancies in the data file
1664     - experiment uses looped cells
1665     - added matlab directory with diagnostic scripts for plotting of output
1666    
1667    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1668     - read AIM physics parameters from a file (data.aimphys)
1669     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1670    
1671    checkpoint46j_post
1672    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1673    o move wVel computation at the end of the time step, in S/R integr_continuity
1674    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1675    o update timeave pkg for wVel diagnostic.
1676    checkpoint46j_pre
1677    
1678    checkpoint46i_post
1679    o Clean up AIM package (and keep the results unchanged):
1680      include CPP_OPTION and use IMPLICT NONE in all routines ;
1681      declare all the variables _RL ; use _d 0 for all numerical constants.
1682      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1683    
1684    checkpoint46h_post
1685    o cleaned up the use of rhoNil and rhoConst.
1686      - rhoNil should only appear in the LINEAR equation of state, everywhere
1687        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1688        and the dynamical equations are all divided by rhoConst
1689    o introduced new parameter rhoConstFresh, a reference density of fresh
1690      water, to remove the fresh water flux's dependence on rhoNil. The default
1691      value is 999.8 kg/m^3
1692    o cleanup up external_forcing.F and external_forcing_surf.F
1693      - can now be used by both OCEANIC and OCEANICP
1694    checkpoint46h_pre
1695    
1696     Added code to convert surface volume flux (fresh water) into
1697     a mass flux when using P coordinates in the ocean (OCEANICP).
1698     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1699    
1700    checkpoint46g_post
1701    o Include a new diagnostic variable phiHydLow for the ocean model
1702      - in z-coordinates, it is the bottom pressure anomaly
1703      - in p-coordinates, it is the sea surface elevation
1704      - in both cases, these variable have global drift, reflecting the mass
1705        drift in z-coordinates and the volume drift in p-coordinates
1706      - included time averaging for phiHydLow, be aware of the drift!
1707    o depth-dependent computation of Bo_surf for pressure coordinates
1708      in the ocean (buoyancyRelation='OCEANICP')
1709      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1710        Theta, Salinity, and Pressure in the parameter list. This routine is
1711        presently contained in find_rho.F. This routine does not give the
1712        correct density for 'POLY3', which would be a z-dependent reference
1713        density.
1714    o cleaned up find_rho
1715      - removed obsolete 'eqn' from the parameter list.
1716    o added two new verification experiments: gop and goz
1717      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1718    checkpoint46g_pre
1719    
1720    checkpoint46f_post
1721    o Enable tangent linear (forward mode) gradient checks:
1722      - extended active file handling to g_... files
1723      - added TANGENT_SIMULATION to theSimulationMode
1724      - extended grdchk package accordingly
1725    o added tangent linear setup in verification/carbon/code_ftl
1726    o added adjoint setup in verification/front_relax/code_ad
1727    
1728    checkpoint46e_post
1729    o Added new equation of state -> MDJWF
1730      - EOS of McDougall et al., 2002, JAOT, submitted
1731      - caveat: the equation of state is only valid for a smaller (more
1732        realistic?) range of values than JMD95P/Z and UNESCO
1733      - added masks to the calculation of pressure in store_pressure
1734      - added more check values for density in check_eos (ini_eos.F), some of
1735        the old check values are out of the range of the MDJWF-eos, so don't
1736        expect perfect matches for those
1737    checkpoint46e_pre
1738    
1739    checkpoint46d_post
1740    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1741      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1742      case of pressure coordinates. eosType='JMD95Z' in
1743      combination with buoyancyRelation='OCEANICP' now causes an error.
1744    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1745      in find_alpha/beta.
1746    checkpoint46d_pre
1747    
1748    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1749      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1750    
1751    checkpoint46c_post
1752    o Changes necessary for ocean in p-coordinates
1753     -  Added new buoyancy relation = 'OCEANICP'
1754     -  Added new parameters = gravitySign (this used to be contained inside
1755        the factor dRdZ which I added when we first switched to R coordinates).
1756     X GM/Redi is not compatible (yet)
1757     X bottom drag and no-slip need to be debugged.
1758    checkpoint46c_pre
1759    
1760    checkpoint46b_post
1761    o Added new equation of state -> JMD95Z and JMD95P
1762      - EOS of Jackett and McDougall, 1995, JAOT
1763      - moved all EOS parameters into EOS.h
1764      - new routines ini_eos.F, store_pressure.F
1765    o Added UNESCO EOS, but not recommended because it requires
1766      in-situ temperature (see JMD95)
1767    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1768      unesco.f to be used with POLY3
1769    checkpoint46b_pre
1770    
1771    checkpoint46a_post
1772    o Added (atmospheric) pressure loading
1773      - new field in FFIELDS.h, etc...
1774      - new cpp flag ATMOSPHERIC_LOADING
1775    o Changed hFacC to _hFacC in calc_phi_hyd.F
1776    o Added SHORTWAVE_HEATING to some files for consistency
1777    checkpoint46a_pre
1778    
1779    checkpoint46
1780    further merges from release1_p5
1781    o new ctrl package
1782      - adopted from ECCO environment to enable optimization
1783      - added Eliassen Palm fluxes to controls
1784    o added Eliassen Palm flux controls to gradient check package
1785    o cost package
1786      - Compatible with new ctrl package
1787      - added Eliassen Palm cost hooks
1788      - modif's of existing cost functions
1789    o Adjoint-related bug fixes in kpp:
1790      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1791      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1792    o autodiff package
1793      - flow directives:
1794        + new for S/R do_the_model_io
1795        + enhanced for S/R checkpoint
1796        + new gmredi.flow
1797      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1798        disable adcommon.h/g_common.h by default.
1799      - fixed problem for adjoint of global_max
1800    o modified verification/carbon/
1801    o New setup for adjoint of global_ocean
1802    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1803    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1804    o incorporated hooks for sponge layer code (external_forcing.F)
1805    
1806    checkpoint45d_post
1807    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1808    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1809      (affects plume_on_slope "cg2d" output)
1810    o add new parameter deltaTfreesurf for free-surface time stepping
1811    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1812  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1813  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
1814  o add new flags:  o add new flags:

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