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revision 1.14 by cnh, Tue Sep 29 18:57:53 1998 UTC revision 1.518 by heimbach, Thu Jul 28 14:34:11 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint57n_post
8    o adding precip control xx_precip
9    o moved ptracer ctrl index 17 -> 32
10    
11    checkpoint57m_post
12    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
13      and advect_cs (use EXCH-2 and standard cs-32 grid files).
14    o pkg/exch2: filling of face-corner halo regions is optional
15      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
16    
17    checkpoint57l_post
18     tag before updating tutorials (pre-release-2)
19    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
20       for output and interpolation of input fields onto model grid)
21    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
22       Affects results of exp. rotating_tank ; update output.txt.
23    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
24          and taking the square quantity and/or using a fraction-weight field.
25    o fix aim_diagnostics_init.F mate numbers.
26    o add mnc output capability to diagnostics/diagstat and update
27      our cvsignore files for the ACSII output generated
28    
29    checkpoint57k_post
30    o lab_sea now uses diagnostics package and provides a suite of
31      new EXF diagnostics output.
32    
33    checkpoint57j_post
34    o exf
35      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
36        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
37        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
38      * extended diagnostics output
39        - now includes all EXF variables
40        - hs, hl moved to common block
41        - separate S/R for diagnostics, called after ctrl vector is added
42        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
43        - EXFqnet contains true Qnet (i.e. includes qsw)
44      * updated verif. lab_sea, global_with_exf
45      * Rearranging hflux (exf_mapfields -> exf_getforcing)
46        to ensure that diagnostics sees a true EXFqnet
47    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
48    o diagnostics pkg: change pointers so that 1 diagnostic can be used
49      several times with different frequencies.
50    o mnc-ify the thsice package as requested by Daniel Enderton
51      - the monitor--MNC output needs work
52      - many attributes need to be added (most are currently blank)
53    o mnc-ify theaim_v23 package as requested by Daniel Enderton
54      - many attributes need to be added (most are currently blank)
55    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
56    o add Sadourny like discretization to the 4th.O vorticity advection scheme
57    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
58      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
59         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
60    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
61     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
62    
63    checkpoint57i_post
64    o Diagnostics package was changed: diagnostic allocation is now deactivated
65      by setting an empty file name in the namelist (used to be by setting 0 frequency)
66    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
67      add 1rst Order upwind vertical Shear.
68    o add a quick fix for A/B checkpointing in OFFLINE mode
69    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
70      end-run around the C/Fortran linking horror in eesup/src/timers.F
71    o added pkg/runclock: allows user to terminate run based on wall clock
72    o added non-hydrostatic scaling parameter: nh_am2
73    o pkg/my82: futile attempt to make results compiler-independent by adding
74      some "_d 0", etc. no effect.
75    o for mnc output, fill the 'T' coordinate var with myTime and create a
76      separate 'iter' variable for iteration count
77    o pkg/diagnostics:
78      add new capability: output of Global/Regional & per-level statistics ;
79      tested against monitor output (including land & thSIce) on various exp.
80    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
81    
82    checkpoint57h_done
83      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
84      data.diagnostics, data.gchem, data.ptracers) is done.
85    
86    o pkg/diagnostics: prepare for Global/Regional statistics.
87      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
88    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
89      and rename it: DIFFERENT_MULTIPLE
90    
91    checkpoint57h_post
92    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
93    o pkg/diagnostics: change output frequency, now in seconds (instead
94      of Nb of iterations). This requires to change data.diagnostics.
95    checkpoint57h_pre
96    
97    o in mnc, let the user create the output dir if both mnc_outdir_date
98      and mnc_outdir_num are false
99    o add fflags() to pkg/diagnostics which allows one to specify, on a
100      per-file basis, the file precision [default behavior is unchanged]
101    o added diagnostics to pkg/kpp, including computation of mixed layer
102      depth based on a temperature/density criterion
103    o updated verification/natl_box to test the new pkg/kpp diagnostics
104    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
105    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
106    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
107      not mnc -- this mistake was found by JMC and is now corrected
108    
109    checkpoint57g_post
110    o add Adams-Bashforth 3rd Order time stepping:
111      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
112      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
113    checkpoint57g_pre
114    
115    o make lambda[Theta,Salt]ClimRelax spatially varying
116      (default remains spatially uniform constant based on tau)
117    o added new control variables
118      * init. uVel, vVel, etanN
119      * lambda[Theta,Salt]ClimRelax
120    o separate masks used for ctrl_pack/unpack 'from write_grid' output
121      (suggested by G. Forget)
122    
123    checkpoint57f_post
124    o add parameter "baseTime" = model base time = time at iteration zero
125      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
126      account for baseTime shift
127    o move Coriolis arrays from PARAMS.h to GRID.h
128    checkpoint57f_pre
129    
130    o mnc-ifying the seaice package
131    o introduced an alternative length scale calculation for use in the limiting
132      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
133    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
134    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
135      as well as grad(vort3).  Made it compatible with both approximate form
136      for the cubed sphere and full form of these gradients.  Added flag
137      useFullLeith to select between approximate and full form.  
138    o add "d0" in getcon.F to reduce differences between compilers/platforms
139      update output.txt of exp. fizhi-gridalt-hs
140    o change port_rand funtion to allow to set the seed.
141    o fix obscure MNC bug involving conversion between reals and integers
142      - it caused no problems with certain (eg. gcc, ifc) compilers but the
143        new version is now more standards-compliant
144    o adjoint-related modifications
145      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
146      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
147      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
148    
149    checkpoint57e_post
150    o Adding eddy stress controls a la Ferreira et al.
151    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
152    
153    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
154      update output.txt of exp. fizhi-gridalt-hs
155    o add more "Z" dimensions and associated coordinate vars to MNC
156    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
157    o parameter calendarDumps: when set, approximate months (30-31 days) and years
158      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
159      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
160      months and years.  Requires pkg/cal.
161    o diagnostics: add pickup functionality
162      - off by default for backwards compatibility
163      - current version only uses MDSIO -- MNC will be added
164    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
165    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
166    
167    checkpoint57d_post
168    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
169    o modify verification/ideal_2D_oce so that it tests the creation of mnc
170      output from the diagnostics package
171    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
172    o make genmake2 more portable by using ".$FS" instead of ".f" for more
173      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
174    o add coordinate variables to the MNC output from the diagnostics package
175    o change MNC-flags default value: true when useMNC=TRUE
176    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
177      the ability (off by default) to read the grid information using MNC
178    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
179    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
180    o do snap-shot diagnostics at the middle of the time-interval (instead of
181      at the end).
182    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
183      new test for AIM with thSIce + slab-ocean
184    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
185    o move state variable diagnostics to the beginning of the time step ;
186      (note: still needs some work specially for snap-shot diagnostics)
187      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
188    
189    checkpoint57c_post
190    o Change testing option (-ieee) to get closer agreement between g77 & ifort
191    o generate new output.txt files on faulks with g77 & the new -ieee option
192    checkpoint57c_pre
193    
194    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
195      update output.txt of exp. global_ocean.90x40x15
196    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
197      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
198    o add saltFlux(+File) forcing capability with periodicExternalForcing
199    o allow to use pkg diagnostics for GM-Redi & ThSIce output
200    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
201    o improvements for the MNC output from DIAGNOSTICS:
202      - correct handling of the unlimitied dimension
203      - all dims now have associated coordinate variables
204      - variables located at U, V, and Corner ("Z") points are now written
205        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
206        *all* data points are output
207    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
208    o added pkg/seaice/seaice_monitor.F
209    o mdsio_readfield.F can now read files visible only to master MPI process.
210    o pkg/seaice: some test code for ice-modified ocean stress
211    o exf_getffields interpolation defaults to bilinear for all scalar forcing
212      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
213      spurious negative numbers for precipitation and humidity.  Will cause
214      some small numerical differences for integrations using pkg/exf/exf_interp.F.
215    o pkg/ctrl/
216      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
217        May be enabled via doPackDiag
218      *  introduce z-scaling of
219         + gradient (doZscalePack) and
220         + control (doZscaleUnpack)
221    o pkg/mdsio/
222      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
223      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
224    
225    checkpoint57b_post
226    o simplify options in diagnostics_fill arguments (remove weird combinations)
227    o fix MNC coordinate variables so that they now contain per-face index
228      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
229      general, EXCH2 grids are only aligned to a "local" coordinate system
230    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
231    o Implement instantaneous output within pkg diagnostics:
232      setting a negative frequency in data.diagnostics produces
233     "snap-shot" output (as opposed to time-average if freq > 0)
234    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
235      NOTE: change ptracer diagnostics name: use 2 characters to work with
236            more than 9 tracers. Add also diagnostics of advect & diffus flux.
237    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
238      becomes the coordinate variable for the 'T' dimension
239    o add CF-style coordinate variables to MNC
240      - just a first cut:  numbers are meaningless on the cubesphere and
241        missing along the T axis but otherwise it works!
242    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
243    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
244    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
245      this is based directly on what the model compute, so that the content of
246      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
247    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
248    o clean up build options files for SunOS, in particular
249      - remove -traditional from xmakedepend
250      - change -xarch=v9 to -xarch=native for f77
251      - restore use of make (not gmake)
252      - add CC=gcc if using g77
253    o changes per discussion of AM, JMC, & EH3 today:
254      - move redundant "grid" variables out of "state" -- in preparation of
255        creating proper CF-style coordinate variables and in recognition
256        that any/all grid variables can be easily copied (eg. w/NCO) from
257        the grid files into any of the other NetCDF files
258      - *always* output grid variables with MDSIO (this will eventually be
259        changed)
260      - output MNC grid file if useMNC is true
261    o every instance of _END_MASTER() has been found and replaced with
262      _END_MASTER( myThid ) in order to satisfy certain picky Sun
263      preprocessors
264    o re-arrange diagnostics pkg initialisation:
265     - allow each package to extend the available diagnostics list
266     - add some checking and fix small problems (multi-threaded, ...)
267     - new S/R diagnostics_fill (replace fill_diagnostics):
268       look through the short list of active diag. (instead of the long list)
269       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
270    
271    checkpoint57a_post
272    o this set of changes restores TAMC compatibility
273      tested for global_ocean.90x40x15 adjoint on trough
274      (what a pain)
275    
276    checkpoint57a_pre
277    o some modifs in tools/build_options for sunos
278    o call ctrl_pack for ctrl at end for optimcycle=0
279    
280    checkpoint57
281    o add horizontal bi-harmonic viscosity for vertical velocity
282      - new parameter viscA4W (defaults to viscA4)
283      - affects only non-hydrostatic code
284      - to be done: no-slip lateral boundary conditions
285    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
286    o implement Implicit Vertical advection for pTracers
287    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
288      (implemented also for implicit vertical diffusion & advection)
289    o OBCS: extend application of tracer open boundary conditions
290      to a strip beyond the boundary of width Olx/Oly
291    o add call monitor to TAF set of required calls (flow directives)
292      and include in natl_box_adjoint
293    o untangle a few ifdefs related to cost, ctrl, autodiff
294      untangel a few ALLOW_ECCO_OPTIMIZATION
295    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
296      (theta2, salt2 in ecco_cost_weights)
297    
298    checkpoint56c_post
299    o OBCS as control variables
300      - update ctrl_ad_diff.list, obcs_ad_diff.list
301      - remove balance of obcs controls from default
302      - fix index bug nobcs in ctrl_init
303      - fix dummy fields filen in ctrl_pack
304      - add dummy weights for obcs
305    o lsopt: comment out fort.94 output
306    o optim:
307      - remove unnecessary header files
308      - adjusted namelists
309      - add xerbla.F to Makefile
310    o exf:
311      - multiple modifications of exf_check_range
312      - unit change in exf_init_runoff from [m/year] to [m/s]
313    o mdsio:
314      - i/o-vector change debugLevel from debLevA to debLevB
315    
316    checkpoint56b_post
317    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
318      is called from DO_THE_MODEL_IO
319      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
320      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
321      - clean up PTRACERS_WRITE_TIMEAVE a little
322    o add another verification experiment that tests both the cfc-pkg and
323      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
324      reactive tendencies treated inline with regular timestepping
325    o testreport previously did a lousy job of comparing small numbers, so
326      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
327      implemented in the little c-progam tmp_cmpnum.c which is embedded in
328      testreport.
329    o ptracers_monitor: bug fix for MPI
330    
331    checkpoint56a_post
332    o GCHEM: finish reorganizating the package
333      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
334        (introduces another 3D-array for each passive tracer, but only if
335        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
336        gchemTendency is not needed because the timestep is done separately)
337      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
338      - GCHEM is now---more or less cleanly---separate from PTRACERS
339      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
340        so clear to me how that should be done in a general way.
341    o CFC: improve formatting of output in CFC_ATMOS
342    o PTRACERS:
343      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
344        that ALL experiments with ptracers enable can be checked. This makes
345        GCHEM_MONITOR obsolete.
346      - include a runtime parameter PTRACERS_monitorFreq that defaults to
347        monitorFreq
348      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
349    o add PTRACERS (PTR0[1-5]) to testreport output
350    o exf_check_range:
351      * default changed to .TRUE.
352      * will check values for niter0 if debLevA, every timestep if debLevB
353      * STOP in exf_check_range if 'out of range'
354      * range chosen generous to allow for potential extema
355      TBD: a version with stricter range
356           permitted range would be runtime parameters
357    o GMredi:
358      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
359      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
360      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
361    o GCHEM:
362      - move call to GCHEM_FORCING_SEP, so that it is now called before
363        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
364      - introduced a useGCHEM runtime flag and applied it everywhere.
365      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
366        this flag is now only visible within GCHEM-pkg routines.
367      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
368        be replaced by a 3D array that is computed before thermodynamics; for
369        this, the tracer ID iTracer had to be included into the parameter list
370        of ptracers_forcing
371      - set up forward_step to call gchem_forcing, that will replace
372        gchem_forcing_int in ptracers_forcing
373      - cleaning up
374    o small cleaning of exch2: remove files that are also in eesupp/src
375    
376    checkpoint56
377    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
378    o mnc: cleanup "full" files--fixes out-of-memory problem
379    o ECCO-GODAE
380      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
381      * fully merged and updated from SIO code
382        windstress sign change affects
383        - exf_inscal_[u/v]stress
384        - sign of xx_tau[u/v] adjustments
385        - signs in cost_scat
386      * ctrl_get_gen: avoid update of tau[u/v] for first few days
387      * natl_box_adjoint updated and compressed
388      * 2-level checkpoint switch added
389        (tested in EXP. 1 of natl_box_adjoint)
390      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
391    o SVD
392      * first complete, non-hacked version for SVD calculations
393      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
394        performed via direct access files admtlm_vector.it????
395        (via ctrl_[un]pack)
396      * optimcycle is used for ARPACK iteration counter
397        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
398      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
399        and add linear transforms where necessary
400      * controls are initial/final SST, SSS (can be extended; need to check
401        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
402    o mdsio: filename info to both stderr, stdout
403    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
404      from sign change
405    
406    checkpoint55j_post
407    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
408      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
409    o add consistent build directories and .cvsignore files to verification
410    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
411    o make all subroutines 30 or less characters in length for certain older
412      compilers to work (a thorough search only turns up two routines in
413      pkg/ptracers)
414    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
415      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
416    
417    checkpoint55i_post
418    o change arrays for total vertical diffusivity (2.D if explicit,
419      3.D if implicit) ; each ptracer uses its own background value.
420    o added mnc/NetCDF output capability to ocn_compon_interf
421      - added bits to verification/cpl_aim+ocn so that it can run on
422        ITRDA and other clusters without the mpirun "-wd" option
423    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
424      configuration
425    o give MNC the ability to create additional files rather than
426      exceeding a specified file size limit "MNC_MAX_FILESIZE"
427      - the default is just less than 2GB which is a practical limit
428        on many systems
429    o Compute the non-local term using either KPP vertical diffusivity (=default)
430       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
431    
432    checkpoint55h_post
433    o add verification test "vermix"
434    o remove all the *_ioinc flags and replace with the single global
435      outputTypesInclusive flag
436    o allow to set a vertical profile of vertical diffusivity for T & S
437    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
438    o useMNC moved from data.mnc to data.pkg
439    
440    checkpoint55g_post
441    o Renaming carbon AD experiments to comply with testreport conventions
442    o Updating adjoint of Held-Suarez hs94.1x64x5
443    o Fixing directives for non-ECCO forward_step, after ECCO directives
444      have been fixed to avoid recomp. of do_oceanic_phys
445      Works well for global_ocean.90x40x15,
446      but recomp. issue remains for carbon
447    o Updating adjoint output for natl_box_adjoint after
448      pkg/ecco has been modified (see taga c55d_post)
449    
450    checkpoint55f_post
451    o rename to timeave_init_fixed
452    
453    checkpoint55e_post
454    o some delicate re-shuffle of store directives to avoid one
455      extra call of do_oceanic_physics
456      affects ecco_the_main_loop.F, do_oceanic_physics.F
457      checkpoint_lev1_directives.h
458    o NB: this may break global_ocean adjoint temporarily,
459      but it is clear how to fix it. Will do later, need this now.
460    
461    checkpoint55d_post
462    o ECCO specific cost function terms (up-to-date with 1x1 runs)
463    o ecco_cost_weights is modified to 1x1 runs
464    o modifs to allow observations to be read in as
465      single file or yearly files
466    o enable to read exf forcing fields as either
467      single file or yearly files (flag useExfYearlyFields)
468    checkpoint55d_pre
469    
470    o switch between 2-level and 3-level checkpointing
471    o add ability of MNC to write local and "partial" (eg. 2D slices where
472      the full 3D field is never actually stored) arrays to NetCDF files
473      with the correct (that is, the complete multi-dimensional) set of
474      array indicies
475      - used in mom_vecinv() to write the diagFreq output
476      - tested (demonstrated) in verification/aim.5l_cs
477    o further mnc-ification
478      - add verification/lab_sea to the list with mnc setups
479      - fix undefined mnc v-names in cd_code
480      - add kpp to mnc output (both snapshot and timeave)
481    o non-hydrostatic code
482      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
483        in calc_gw.F
484      - defaults to viscAh
485      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
486        friction or Leith) in non-hydrostatic mode, as long as there is
487        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
488    o pkg/cost
489      extend simple cost functions to treat time mean quantities
490      (T,U,V) via cost_accumulate_state from cost_tile
491    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
492        be 2 times larger than the minimum size the advection scheme requires.
493        now get a perfect conservation of salt in advect_cs test-exp (updated)
494    o GGL90 (Gaspar's TKE mixed layer)
495      - add horizontal diffusion of TKE, requires exchanges in
496        do_fields_blocking_exchanges, horizontal diffusivity is zero by
497        default. In OPA there is no horizontal diffusion of TKE but the
498        mixing coefficients are computed from a horizontal average of TKE of
499        6 points or so. I think that diffusion has a little more physical
500        justification.
501      - clean up ggl90_calc in the hope of reducing memory usage (this hope
502        was in vain)
503      - mask tke-variable in ggl90_init
504    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
505    o fix biharmonic diffusion on CS-grid.
506    o more obcs stuff
507      - added obcs_external_fields_load as an alternative to the EXF-pkg option
508        for reading boundary values. This routine is called from
509        obcs_prescribe_read
510      - updated obcs_check
511      - changed sponge layer relaxation parameter units for days to seconds
512      - turned off sponge layer by default
513      - changed argument list of OBCS_CALC to myTime+deltaTclock
514      - fixed about 35 bugs in obcs_external_fields_load
515    
516    checkpoint55c_post
517    o obcs stuff
518      - new runtime flags useOBCSprescribe, useOBCSbalance
519      - re-arranged obcs_calc
520      - moved exf_getobcs to obcs_prescibe_read
521        obcs_prescibe_read is called after ORLANSKI stuff
522        and independent of it (executable can contain all).
523      - updated obcs_check
524      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
525        These may be necessary only if tangential velocities are
526        prescribed at OB, not sure, needs testing.
527    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
528      which simplifies the calls and passes the ifc check-bounds test
529    
530    checkpoint55b_post
531    o add a 2D scalar, Z location, exchange_2 routine.
532    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
533      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
534      affects advect_cs results (for the wrong reason): update output.txt
535    o use a more standard discretization for biharmonic viscosity ;
536     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
537      affects results of dome set-up: update output.txt
538    o fix gad_advection.F (CubedSphere part), back to version 1.23
539    o fix bug in mom_vi_del2uv.F (CubedSphere part).
540    
541    checkpoint55a_post
542    o merged code to
543      * prescribe/read time-dependent open boundaries
544        (works in conjunction with exf, cal)
545      * sponge layer code for open boundaries
546      * each boundary N/S/E/W now has its own CPP option
547        (healthy for the adjoint)
548    
549    checkpoint55
550    o up-to-date adjoint of previous breaks
551      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
552      - global_ocean_ebm: adjoint still needs fix (TLM ok)
553      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
554      - carbon: * remove tr1-related adjoint verification
555                * add ptracer as control variable
556    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
557      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
558    
559    checkpoint54f_post
560    o in verification/carbin/ remove experiment related to
561      ALLOW_PASSIVE_TRACER (array tr1 etc)
562      code_ad/ input_ad/ results_ad
563    
564    o add two new packages
565      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
566        + subject to optimization (memory)
567      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
568        + subject to reordering (many GOTOs in the original code)
569        + so far opps is called for every (i,j) point, and then operates in
570          the vertical; one may want to reorder the scheme in order operate in
571          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
572          fields)
573    o overhaul of IO so that we now have flags for MDSIO and/or MNC
574      - all verification tests compile and run with linux_ia32_g77
575      - defaults are compatible with current input files--nothing
576        should change if you were not previously using MNC
577      - MNC output has been added in numerous places (eg. timeave)
578        but there are still a few writes not yet do-able with MNC
579        (this is in progress)
580      - flags now allow for either/or/both use of MDSIO and MNC and
581        documentation will soon follow
582      - numerous small formatting cleanups for ProTeX
583    o add version info (via BUILD_INFO.h) to MNC and stdout
584    
585    checkpoint54e_post
586    o add two new packages
587      - pp81 (Packanowski and Philander, 1981), Richardson number and
588        stratification dependent mixing
589      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
590      - these scheme operate in a similar manner as KPP (without ghat, of
591        course), however there is only one diffusivity that is used for both
592        temperature and salinity (and passive tracers)ç
593    o add offline package
594    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
595      provided by Stephanie Dutkiewicz
596    o genmake2: add ability to search for C compilers and cleanup test output
597      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
598    
599    checkpoint54d_post
600    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
601    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
602      leading to additional shift by 5 days each year of integration
603       (i.e. leading to considerable offset over the years)
604    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
605    o start with no AB and no initial filtering (staggerTimeStep):
606      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
607    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
608      (external loading & cpl import/export stay in forward_step.F)
609    o update coupling interface to work with new staggerTimeStep
610    o change MDSIO ptracers_pickup.
611    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
612    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
613    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
614    
615    checkpoint54c_post
616    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
617      this affects (truncation error) output.txt of test-exp:
618       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
619    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
620    o change Qnet to always be the net heat flux, (+upward).
621      affects (truncation error) output of natl_box exp.: updated
622    o define the max number of passive tracers in PTRACERS_SIZE.h
623    o start to test mnc routinely in exp0
624    o add sea-ice loading (sIceLoad) as a new forcing field.
625    
626    checkpoint54b_post
627    o add testreport "-j JOBS" option for parallel builds (tested and pretty
628       impressive on Altix and Opteron systems)
629    o diagnostics can now write NetCDF files through the mnc package
630    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
631    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
632    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
633      affects (truncation error) output of lab_sea & natl_box exp.: updated
634    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
635    
636    checkpoint54a_post
637    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
638    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
639    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
640    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
641      + internal_wave (shift in writing cg2d_ini_res)
642    checkpoint54a_pre
643    
644    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
645      - modified verification/lab_sea and natl_box_adjoint accordingly
646    
647    checkpoint54
648    checkpoint53g_post
649    o prepare splitting of thermodynamics: store convect.counter in common block
650    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
651      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
652    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
653    o new parameter "nShapS": allow to treat differently S from T (nShapT)
654    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
655    o restore adjointability
656    
657    checkpoint53f_post
658    o modifications that affect AIM experiment results (update output.txt):
659      - no advection of S at top interface Nr (pkg/generic_advdiff)
660      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
661    o AIM pkg:
662      - include stability function into surf.Flux derivative relative to Tsurf
663      - calculate clear-sky radiation & surface temp. change (for diagnostics)
664    
665    checkpoint53e_post
666    o merged cylindrical coord configuration
667    o added rotating_tank experiment
668    checkpoint53e_pre
669    
670    checkpoint53d_post
671    o faulks upgraded: re-generate output.txt that have changed:
672       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
673    o Added Bryan and Lewis, 1979, vertical diffusivity profile
674    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
675    o added Sadourny discretization of Coriolis
676      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
677      - re-enabled use of omega3 (useAbsVorticity)
678    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
679      vector-invariant equations
680      - note: does *NOT* yet use same variable visc. for no-slip BC's.
681    o recoded the lateral boundary conditions for non-hydrostatic w, this time
682      hopefully without new bugs
683      - still to do: biharmonic friction for non-hydrostatic w
684    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
685    o regenerated output for global_ocean_ebm (using -ieee)
686    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
687      of mom_common/
688      - simple re-arrangement of instructions within computing loop
689    checkpoint53d_pre
690    
691    checkpoint53c_post
692    o new version of coupler for AIM+thSIce and Ocean models
693     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
694     - land: change Evaporation of snow
695     - aim with thSIce: fix bug in snow-precip.
696    o changes to calc_gw.F
697     - bug fix for w^2 term near the bottom boundary
698     - (hopefully) improve the lateral slip boundary condtions for use with
699        partial/looped cells
700      - because the bug fix changes two verification experiments anyway (exp5
701        and plume on slope), change the lateral boundary condition from half slip
702        to the value of no_slip_sides
703    o ebm package wasnt quite up to the parallel task. Fixed that.
704    o Adjoint of EBM package + verification
705      * TLM OK
706      * ADM not sufficient accuracy yet (needs further testing)
707    
708    checkpoint53b_post
709    o Commiting new energy balance model to repository
710      * package is pkg/ebm
711      * verif. is verification/global_ocean_ebm
712      * references are in ebm_driver.F
713    C      * X. Wang, P. Stone and J. Marotzke, 1999:
714    C        Global thermohaline circulation. Part I:
715    C        Sensitivity to atmospheric moisture transport.
716    C        J. Climate 12(1), 71-82
717    C      * X. Wang, P. Stone and J. Marotzke, 1999:
718    C        Global thermohaline circulation. Part II:
719    C        Sensitivity with interactive transport.
720    C        J. Climate 12(1), 83-91
721    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
722    C        Destabilization of the thermohaline circulation
723    C        by atmospheric eddy transports.
724    C        J. Climate 7(12), 1870-1882
725    o Will need long integration testing.
726    checkpoint53b_pre
727    
728    o created pkg/mom_common in preparation for variable viscosity code
729    o renamed and split ini_mnc_io
730    o pkg/land: only liquid water can diffuse or run-off
731    o AIM using land: soil wetness availability account for snow
732    o added printMapIncludesZeros to EEPARMS namelist
733    
734    checkpoint53a_post
735    o restore TAMC compatiility for exf_constants.h
736      (no usage of _d in .h)
737    o Additional storing in KPP in an attempt to fix
738      TAMC problem with adjoint of KPP code.
739      (no success...)
740      Identical code works fine with TAF.
741    o Fixed verification/natl_box_adjoint experiments.
742      Initial conditions for Experiments 4 and 5 are now
743      set to "SEAICE_initialHEFF=0", which is more reasonable,
744      and hence gives results closer to that of Experiment 2.
745      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
746    
747    checkpoint53
748    o stable checkpoint with up to date adjoint
749      TLM tests only run for 1st grdchk at the moment. Its unclear if
750      this is a code problem or a problem with resetting code for g_
751      variables that is being autogenerated wrong.
752      Otherwise:
753       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
754       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
755         are both still in chaos following their security messes.
756    
757    checkpoint52n_post
758    o various build (mostly genmake2) changes including:
759      - ability to build/run more easily within Cygwin and MacOS X
760      - more complicated Makefiles with a stronger dependence on Gnu Make
761    o pkg/seaice modifications
762      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
763        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
764        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
765      - changed proxy for geostrophic velocity and updated
766        verification/lab_sea/results/* accordingly
767      - removed ADI dynamic solver from pkg/seaice
768      - replaced all occurrences of 1/CSTICE or 1/CSUICE
769        they caused a segmentation fault under certain circumstances
770      - removed unused field WATR
771    o bug fix in exf-package:
772      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
773         now reflect that.
774    o small fixes in the cal-package:
775      - set reference date to first of January for the 'model'-calendar
776      - failing of cal_CheckDate in cal_FullDate now actually results in a
777        warning
778    o small modifications in exf-package to increase flexibility:
779      - change climtempfreeze from a constant to a runtime parameter that
780        is specified in data.exf_clim (default = -1.9)
781      - introduce runtime parameter windstressmax (default = 2.0) that is
782        specified in data.exf
783    o fix in pkg/thsice:
784      - update Evap (Tsf changes) to be consistent with Latent heat flux
785      - maintain snow precipitation unchanged (even if Tsf >=0).
786     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
787    
788    checkpoint52m_post
789    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
790      this does not change any of the results, because myIter=0 in swfrac always
791      lead to jwtype=2 (the default anyway), but the call makes little sense
792      as a default
793    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
794    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
795      atmospheric model (AIM) to use it ; add a "slab ocean" component.
796    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
797    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
798    o extending useSingleCpuIO option to work with new exch2 I/O format
799      - old-style, missing-tile I/O is still accessible by defining CPP
800        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
801    o monitor package can write to NetCDF files and/or STDOUT
802    o fix re-definition bug in MNC_GRID_INIT_ALL()
803    o doc/api_reference added
804      - a framework for building an API Reference Manual using all
805        the "protex" comments embedded in the code
806      - see pkg/generic_advdiff, pkg/mnc for examples
807    o MNC:
808      - make myThid the last argument for all subroutines
809      - new default for the grid files: NO halos
810      - add useMNC and other run-time flags
811      - separate per-file-group handling of the unlimited dimension
812      - early initialization of MNC w/ flags read at the eeboot stage
813        and lookup tables set in initialize_fixed
814      - write all MNC output to a freshly-created directory
815    o thermodynamics sea-ice (thsice) is now tested with testreport.
816    o test exp. advect_cs: use the standard cs32 grid ; update output.
817    o Added functionality to grdchk:
818      pick global i,j,k position (or nearest wet) where to perform check.
819    
820    checkpoint52l_post
821    o new land formulation:
822      a) use ground enthalpy as prognostic variable to ensure exact
823         energy conservation.
824      b) account for water temperature and for latent heat of freezing
825         in all processes (rain, run-off, ground storage)
826      c) compute surface and ground temperature implicitly.
827    o aim_v23 modification for new land model:
828      a) Treat separately land / ocean / sea-ice surface fluxes
829         to allow implicit computation of land & sea-ice surface temp.
830      b) add snow precipitation.
831    checkpoint52l_pre
832    
833    o fix problem (when 1 tile is empty) in min/max monitor.
834    o fix bug in timeAve (u,vZetatave in common block)
835    o no restoring terms under ice for pkg/seaice
836    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
837    o bug fix for pkg/seaice pickups
838    o change MNC call locations and add coordinate attributes
839    o mask vorticity at the corner ; affects global_ocean.cs output
840    o fix ini_curvilinear_grid ; test CS experiments with mpi
841    o aim.5l_cs: modify sea-ice fraction input file ; update output
842    o exf: Adding simple range check routine for exf fields after read
843    
844    checkpoint52k_post
845    o removed top-level directory "diags"
846      - we migrated these functions to pkg/timeave a long time ago
847    o fixed bug introduced in pkg/monitor
848    o accuracy ctrlprec = 32 insuffient for gradient checks using
849      averaged fields (I/O via cost_averages)
850      -> use ctrl.h in active_file*.F to control I/O precision.
851    o paramter list of CALL ADTHE_MAIN_LOOP
852    o added initial do_the_model_io to ecco
853    o set all ...Freq to zero after cost_final
854      taveFreq, dumpFreq, pChkptFreq
855    o MAIN and ECCO differentiability restored
856    
857    checkpoint52j_post
858    o fix nchklev in tamc.h for global_ocean...
859    o Bringing flow and store directives up-to-date
860    o Really weird thing!
861      call do_the_model_io from the_main_loop with parameters
862      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
863      TAF places a faulty re-call of initialise_varia
864      after cost_final call which should not be there!
865    checkpoint52j_pre
866    
867    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
868      error messages
869    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
870    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
871      debug output
872    o modfied mdsio_writefield.F to handle non-global files under exch2
873    o update AIM Cubed-Sphere exp (aim.5l_cs):
874      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
875    o update AIM Equatorial Channel exp:
876      use standard aim_v23 pkg and change the SST fields to be more realistic.
877    o globalFile now works with exch2
878    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
879      mon_vort3.F to make exch2 friendly with >1 tile per cube face
880    o limit timeave output for hi-res integrations
881    
882    checkpoint52i_post
883    o removed CPP_EEOPTIONS.h from verification/*/code
884    o updated the tiling for global_ocean_pressure
885    checkpoint52i_pre
886    
887    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
888      the old pkg/aim).
889    
890    checkpoint52h_pre
891    o shortened offending lines in exch2_send_rx?.template
892    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
893    o genmake2: add build & execute test for NetCDF code
894    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
895      old grid files, moved CPP_EEMACROS.h to pkg/exch2
896    o added useSingleCPUIO flag to monitor.F and mon_out.F
897    o added temporary hack for sea-ice dynamics on the cube:
898      metric terms are ignored and it is assumed that
899      there is no sea-ice on cube faces 1, 2, 4, and 5.
900    
901    checkpoint52f_post
902    o added exch2 cube routines to pkg/exch2
903    o modified hs94.cs-32x32x5 to use it
904    o added new grid files to hs94.cs-32x32x5
905    checkpoint52f_pre
906    
907    checkpoint52e_post
908    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
909      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
910    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
911      to work with implicit vertical advection and AB ;
912    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
913    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
914     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
915    checkpoint52e_pre
916    
917    o fix bug in impldiff when Nr=1 or Nr=2.
918    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
919    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
920    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
921      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
922    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
923    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
924    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
925    
926    checkpoint52d_post
927    o re-tiled many expts to allow comparison in multi-processor mode
928      - updated output accordingly
929      - changed hs94.128x64x5 to use intial T from file rather than use the
930        random number generator
931    o add infrastructure in model routines for fizhi and gridalt packages
932    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
933    o changes to permit hi-res, cubed-sphere, configuration
934      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
935      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
936      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
937        of surface winds for the cube
938      (A verification experiment, based on global_ocean.cs32x15, but with
939       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
940       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
941       complete with example surface forcing files and matlab scripts to look
942       at the output and compare it with that of global_ocean.cs32x15.)
943    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
944       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
945       to conform to the common rule.
946    o check-in the first version of the coupler + interfaces for multi-components
947       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
948       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
949       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
950       - ocean and atmos. share the same horizontal grid (no interpolation).
951       - exchanges between component and coupler is done in forward_step
952    o new verification experiment, cpl_aim+ocn:
953       coupled ocean - AIM atmosphere on cs32 grid.
954    
955    checkpoint52d_pre
956    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
957    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
958    
959    checkpoint52c_post
960    o Fixing OPTIONS files for use of exf:
961      - ALLOW_ECCO not needed
962      - ECCO_CPPOPTIONS.h should not be included from
963        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
964        as has been the case in the past
965      - All cal/exf related options are currently set in
966        single header file. Should remain so until we
967        agree on a consistent new policy.
968    o Removed all CPP options for cal package.
969      cal has no more CPP options.
970    o modified STOREs in GAD_ADVECTION
971    o corrected key comp. for passkey
972    
973    checkpoint52b_post
974    o new version: "thsice" of thermodynamic sea-ice pkg:
975     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
976     - modify fluxes but do not change theta directly;
977     - light cleaning of bulk_force pkg (still needed with thsice).
978     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
979       + output_thsice.txt to test thsice & bulk_force pkgs.
980    o put back grid & coriolis monitor output.
981    checkpoint52b_pre
982    
983    o call "do_the_model_io" at the beginning (=> dump initial state)
984    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
985    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
986      (need info on NUMBER_OF_PTRACERS)
987    o missing PTRACERS headers in some routines
988    o default tamc.h in pkg/autodiff supposed to crash
989      to ensure proper customization
990    
991    checkpoint52a_post
992    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
993      - moved surfaceTendencyTice from pkg/seaice to main code
994      - subroutine FREEZE_SURFACE now limits only surface temperature
995        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
996        => new output.txt for global_ocean.cs32x15 & global_with_exf
997      - keep the old version of FREEZE for backward compatibility;
998        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
999      - corresponding modifs for TAF directives
1000    o added surface flux output variables to TIMEAVE_STATVARS
1001    o time-averaged output for pkg/ptracers
1002    o fix problem with ECCO-related divided adjoint
1003      snapshot file was missing some ad-variables,
1004      but no warning issued by TAF
1005    
1006    checkpoint52a_pre
1007    o some bug fixes for #undef REAL4_IS_SLOW
1008    
1009    checkpoint52 = ecco_c52_e35
1010    o after testing adjoints of checkpoint51u_post
1011    
1012    checkpoint51u_post
1013    o this is the post-merge tag of the ecco-branch
1014      (needs another clean checkout and re-testing)
1015    o various natl_box_adjoint configs and results
1016      but no input fields
1017    o obcs adjoint not yet merged!
1018    o adding ECCO global 1x1 and 2x2 degree configs
1019    o updated/extended some store directives for seaice
1020    o pkg/ecco now containes ecco-specific part of cost function
1021    o top level routines the_main_loop, forward_step
1022      supersede those in model/src/
1023      previous input data.cost now in data.ecco
1024      (new namelist ecco_cost_nml)
1025    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1026    
1027    checkpoint51t_post
1028    o this is the pre-merge tag of the ecco-branch
1029    
1030    checkpoint51s_post
1031    o cleanup: removed various obsolete #define-s
1032    o pkg/grdchk
1033      - renamed 'ph-grd 3' to 'grad-res'
1034      - merged from ecco-branch
1035        (remaining bug fixes for obcs gradient checks)
1036      - additional high-precision output for testreport
1037        (grep for 'precision_grdchk_result')
1038    
1039    checkpoint51r_post
1040    o cleaned up or removed CPP_OPTIONS.h files
1041    o updated results for some of the tests to reflect the new
1042      optfiles (-ieee: -O0 instead of -O3)
1043    
1044    checkpoint51q_post
1045    o cd_code:
1046      - moved cd_scheme.F -> cd_code_scheme.F
1047      - separate read_checkpoint from cd_code_ini_vars.F
1048      - separated cd_code part from write_checkpoint
1049      - updated AD_SOURCE, generated .flow
1050      - added CD_CODE_VARS.h to the_main_loop
1051      - Moving cd_code specific store dir.s to pkg/cd_code
1052    o ctrl package totally restructured
1053      - pack/unpack now optional and decoupled from
1054        xx_/adxx_ I/O
1055      - ctrl_pack/unpack cleaned
1056        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1057      - confined inclusion of AD_CONFIG.h to where necessary.
1058    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1059    
1060    checkpoint51p_post
1061    o create initial cd_code package
1062      - WARNING: the initialization of fields within packages
1063        is broken because INI_FIELDS (where READ_CHECKPOINT is
1064        called) is called *before* PACKAGES_INIT_VARIABLES.
1065        This seems to be backwards since
1066        1) its important to initially zero the entire field including
1067           the "halo" region
1068        2) zeroing needs to be done *before* reading pickup info
1069           and the pickup call might or might not happen in any
1070           particular run
1071      - this needs an overhaul for R2
1072    o cleanup verification/*/code/GMREDI_OPTIONS.h
1073    o cleanup testreport
1074    
1075    checkpoint51o_post
1076    o bringing AD-related verif's up to date with genmake2
1077      - carbon/
1078      - global_ocean.90x40x15/
1079      - hs.94.1x64x5/
1080      - (front_relax/ )
1081    o (more) consistent directory structure for AD-related verif.'s
1082    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1083    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1084    o bug fix in find_alpha.F for MDJWF:
1085      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1086        change rho -> rho-rhoConst
1087      - replace call find_rho to find_rhonum
1088    o initialisation of rFlx extended to full array (required by TAF)
1089      and shifted to thermodynamics
1090    o removed PTRACERS.h in ptracers routine
1091    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1092    o Correcting initialisations for fVerU, fVerV.
1093    o helping TAF to recognize dependency on kUp for
1094      fVerU, fVerV
1095    o Replacing delZ by delR in pkg/ctrl/
1096    checkpoint51o_pre
1097    
1098    o undid all of cp51 pending some cleanups and discussion
1099    o added the [#include "AD_CONFIG.h"] statement to all files that need
1100       it for adjoint/tl #defines
1101     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1102     o removed tools/genmake since it no longer works
1103    
1104    checkpoint51n_post
1105    o modifications to make FREEZE flux visible to pkg/kpp
1106      - moved surfaceTendencyTice from pkg/seaice to main code
1107      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1108      - subroutine FREEZE now limits only surface temperature
1109        (this means new output.txt for global_ocean.90x40x15,
1110         global_ocean.cs32x15, and global_with_exf)
1111    o added surface flux output variables to TIMEAVE_STATVARS
1112    
1113    checkpoint51n_pre
1114    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1115    o added [#include "AD_CONFIG.h"] to all files that use the following
1116      defines:
1117      - ALLOW_ADJOINT_RUN
1118      - ALLOW_TANGENTLINEAR_RUN
1119      - ALLOW_ECCO_OPTIMIZATION
1120    
1121    checkpoint51m_post
1122    o incorporating changes to get TAMC/TAF working in genmake2
1123      - added new TAMC/TAF targets to the Makefile
1124      - various cleanups related to package handling
1125      - these changes should have no impact on the forward model
1126    
1127    checkpoint51l_post
1128    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1129     - faster algorithm for cal_addtime.F
1130     - higher precision arithmetic, where needed
1131     - pkg/exf *startdate variables changed from calendar date to
1132       model integration time
1133    
1134    checkpoint51l_pre
1135    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1136    o enable to apply restoring on S & T only in a latitude band.
1137    o update output (external_forcing_surf modif. change truncation errors)
1138       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1139    
1140    checkpoint51k_post
1141    o change default to: useNHMTerms=.FALSE.
1142     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1143       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1144     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1145        exp1, ideal_2D_oce
1146     - change data file of oceanic exp (leave the results unchanged for now)
1147       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1148    o set gravitySign automatically according to the vertical coordinate used
1149      (and change sign: back to "logical" value: +1 when R increases downward)
1150    o added an include barrier to the default CPP_OPTIONS.h and
1151      removed the #include "PACKAGES_CONFIG.h" from it
1152    o fix a bug in mom_fluxform (from chk51j_post)
1153    
1154    checkpoint51j_post
1155    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1156    o adjusted some flow directives (dynamics, thermodynamics)
1157    o added cubed-sphere case to test cost function
1158    o heckpoint_lev?_directives.h now include
1159      pkg-specific directives, whenever those are enabled.
1160    o Moving pkg-specific flow directives to corresponding pkg
1161      Moving pkg-specific differentiation list to corresponding pkg
1162      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1163      ---> conventions are
1164           - pkg_ad.flow
1165           - pkg_ad_diff.list
1166           - pkg_ad_check_lev?_dir.h
1167    
1168    checkpoint51i_post
1169    o merge of the branch-genmake2
1170      - knowingly breaks the older genmake
1171      - automatic generation of all ALLOW_${PKG_NAME} defines
1172      - new testreport supersedes older testscript
1173    o large number of package inclusion and header cleanups
1174    checkpoint51i_pre
1175    
1176    o new output for adjoin of global ocean vector invariant
1177    o fix for checkpoint of thermodynamic seaice and bulk_force
1178    o Steph gchem various cleanups
1179    
1180    checkpoint 51h_pre
1181    o fixed some single quotes
1182    o modify gchem pkg to be more versatile
1183    o modifications to clean up dic pkg
1184    o add pkg/cfc
1185    
1186    checkpoint51g_post
1187    o provide links for ARPACK and ADM*TLM
1188    o start removing verification/vero/
1189    o update AD-related stuff
1190      (in particular some IF-statements in model/src/ routines)
1191    o adding to verification/global_ocean.90x40x15/ adjoint of
1192      vector invariant setup
1193    
1194    checkpoint51f_post
1195    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1196    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1197      of tracer Green's fucntions for ocean inversion project.
1198    
1199    checkpoint51f_pre
1200    o Added on-the-fly spatial interpolation capability
1201        "USE_EXF_INTERPOLATION" to pkg/exf.
1202      - This is a temporary Cartesian-grid hack until
1203        the super-duper ESMF coupler becomes available.
1204      - See verification/global_with_exf/README for usage example.
1205      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1206        flags and modified pkg/seaice accordingly.
1207    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1208        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1209        non-local transport term.
1210    
1211    checkpoint51e_post
1212    o pkg/mom_vecinv:
1213      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1214      - add time-ave diagnostic of vorticity advection.
1215    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1216    o atmospheric geopotential: - include water vapor effect;
1217                                - use p^kappa in p* scaling.
1218    o land pkg: read initial state from files.
1219    o AIM : add stratospheric drag in the upper level
1220    
1221    checkpoint51d_post
1222    o change function ILNBLNK (=> last non-blank char.) to return zero
1223      (instead of the string length) when the string. char is empty
1224    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1225    o modif's to restore TAMC compatibility
1226      - avoid "_d" constructs in PARAMETER declarations
1227      - avoid interrupting lines by comment lines
1228    o Use cluster local disks for purely local I/O
1229      vs. globally visible disks needed for ctrl stuff
1230      (merged from ecco-branch)
1231      - new active_file_loc... and mdsio_..._loc routines
1232      - affected packages: autodiff, ctrl, grdchk, mdsio
1233    
1234    checkpoint51c_post
1235    o introducing integer flag debugLevel
1236      - debLevZero: suppress all output
1237      - debLevA: standard
1238      - debLevB: equivalent to current debugMode=.TRUE.
1239    o introducing pathname variable mdsioLocalDir for mdsio
1240      that can be specified at runtime
1241      (relevant for cluster I/O to local disk)
1242    `
1243    >>>checkpoint51b_post
1244    adjoint of ptracers
1245    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1246    o extended state in checkpoint_lev?, etc.
1247    o alternative ctrl/cost with tr1 or ptracer
1248    o new comlev1_bibj_ptracers
1249    o new ptracers.flow
1250    o made ptracers_forcing same as external_forcing_s
1251    o added verification for adjoint with ptracers
1252      - adm. grdchk fail so far
1253      - tlm. grdchk OK
1254      - checked tapelev/comlev recomputations: OK
1255    <<<checkpoint51b_pre
1256    
1257    checkpoint51a_post
1258    o added code for biogeochemistry package
1259      - new pkgs: dic, gchem
1260      - new subroutine in ptracers
1261    o modify code for biogeo packages
1262      - in model/src and pkg/ptracers
1263    
1264    checkpoint51
1265    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1266      - autodiff, ctrl, exf, grdchk, seaice
1267      kept separate packages
1268      - cost, ecco, obcs
1269    o updating verification/internal_wave, verification/lab_sea
1270      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1271    
1272    checkpoint50i_post
1273    o Preparing next differentiable checkpoint and sync
1274      of MAIN vs. ecco-branch
1275      - 1st step: this one is differentiable
1276      - 2nd step: next(! not this) checkpoint will have updated packages
1277                  from ecco-branch)
1278    
1279    checkpoint50h_post
1280    o new package "land": provide surface BC for AIM.
1281    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1282    o AIM: use true log-P extrapolation for near surface temp (= as in
1283        F.Molteni paper) ; update aim.5l_cs output.
1284    o New variable in PARM03 for more flexible pickups
1285    o somewhat cleaned package initialisation sequence for
1286      ctrl/ cost/ ecco/ in packages_... routines
1287    
1288    checkpoint50g_post
1289    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1290      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1291      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1292        made the default because of faster convergence than ADI
1293    
1294    checkpoint50f_post
1295    o exf totally restructured
1296      - replaced all exf_set_ routines by one generic exf_set_gen.F
1297        and made sure it's still differentiable
1298      - split exf_getffields.F into new exf_bulkformulae.F
1299      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1300      - updated adjoint/makefile and relevant verif. accordingly
1301    
1302    checkpoint50f_pre
1303     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1304          + change Evap over land. (update aim.5l_cs output)
1305     o added missing .cvsignores and made uniform across expts
1306     o changed configuration of tidal_basin_2d expt
1307     o added pkg/debug functions for tracing code in fatal crashes
1308     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1309     o new fn in pkg/monitor to stop model if solution grows too big
1310     o removed lots of single quotes from comments
1311    
1312    checkpoint50e_post
1313    o make KPP work with PTRACERS
1314     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1315       nearly a copy of kpp_transport_s
1316     - there is no analogue to SurfaceTendencyS, so I have to use
1317       gPtr(of the surface layer) instead
1318    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1319    checkpoint50e_pre
1320    
1321    checkpoint50d_post
1322    o change kpp output from multiple-record state files to single-record state
1323      files analogous to write_state.F
1324    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1325      analogous to the cg2d-related output.
1326    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1327      so that writing to internal file fn (with length 512) fails.
1328    checkpoint50d_pre
1329    
1330    checkpoint50c_post
1331    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1332    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1333    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1334    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1335    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1336    
1337    checkpoint50c_pre
1338    Merging from release1_p13:
1339    o bug fix for pkg/seaice dynamic solver
1340    o Added SEAICE_initialHEFF to pkg/seaice
1341    
1342    checkpoint50b_post
1343    o store u*,v* in gU,V instead of in guNm1,gvNm1
1344    o in order to put the momForcing out of the Adams-Bashforth:
1345      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1346      to timestep.F
1347    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1348    o re-generate output for highly sensitive test-exp:
1349       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1350    
1351    checkpoint50b_pre
1352    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1353    o corrected CPP option mismatch in exf_Bulk... functions for case
1354      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1355    
1356    checkpoint50a_post
1357    o Bug fix for merging between c50 and KPP.
1358      ikey was passed from thermodynamics to kpp_calc via
1359      common block rather than being recomputed in kpp_calc,
1360      in contradiction with new key itdkey.
1361      New key ikppkey created, and tamc.h headers updated.
1362    
1363    checkpoint50
1364    - 2nd step of merge with ecco-branch:
1365      merge changes in ecco-branch back into main trunk
1366    - bug fix in find_alpha
1367    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1368    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1369    - merged some sliced AD support routines
1370    
1371    checkpoint49
1372    merged from ecco-branch:
1373    o exf:
1374      - Enable initialisation of forcing fields to constant
1375        (runtime) values.
1376      - in exf_getffields.F
1377        Reduce i-/j-loop to interior domain, discarding overlaps.
1378        That also fixes wrong TAF-key computations for key_1, key_2
1379        with bulf formulae.
1380      - exf_init.F modify #ifdef for exf_init_evap
1381      - exf_getffieldrec.F, ctrl_getrec.F
1382        The following INT-usages are not safe:
1383          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1384          fldcount = int(fldsecs/fldperiod) + 1
1385        and were modified.
1386    o autodiff: checkpoint_lev...
1387      - updated storing for bulk formulae (some arrays were missing)
1388      - added state for seaice package
1389      - synchronized with main branch
1390    o DIVA:
1391      Modif.s in
1392      - the_main_loop.F
1393      - the_model_main.F
1394      and added cost_final_restore.F cost_final_store.F
1395      o With these changes, it is possible to fully separate
1396        the first forward run to compute the cost function (mdthe_main_loop)
1397        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1398        into separate model executions.
1399        This enables better tuning of DIVA to given queue sizes.
1400      o Loss of cost function value in consecutive DIVA runs is
1401        fixed by storing to 'costfinal' file.
1402      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1403        beginning/end of adjoint integration is accounted for.
1404      The current changes apply to TAF-1.4.26.
1405      TAF has one remaining bug, requiring one manual change
1406      (see MITgcm manual).
1407    o cal: synchronized between MAIN and ecco-branch
1408    
1409    checkpoint48i_post
1410    o Changes to restore differentiability of code w.r.t. previous tag
1411      (mostly adding new routines to make list and replacing
1412      pressure by totPhiHyd).
1413    o Updated and merged grdchk package
1414      - has both ADM and TLM checks
1415      - works for single- and multi-proc.
1416      - output cleaned
1417      - worked successfully for parallel DIVA
1418    o genmake:
1419      - Adding -platform=SP4
1420      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1421    o Modif. for DIVA:
1422      ctrl_unpack should not be called in intermediate DIVA interval.
1423      (similar thing would apply for active files such as
1424      tbar, sbar, psbar, which should not be reinitialised;
1425      only relevant for ecco-branch)
1426    
1427    checkpoint48h_post
1428    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1429    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1430    o Added SEAICE_initialHEFF to pkg/seaice
1431    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1432    
1433    checkpoint48g_post
1434    --- EOS:
1435    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1436      store total Potential in totPhyHyd for diagnostics & EOS.
1437    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1438    --- Pressure/geopotential gradient:
1439    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1440    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1441      ( changes results of global_ocean_pressure )
1442    o NLFS + z-coord.: add eta*Rho' contribution.
1443    o accurate phiHyd when using interface-W at the middle between 2 centers
1444     ( changes results of ideal_2D_oce )
1445    o includes r* 2nd term in potential gradient.
1446    
1447    checkpoint48f_post
1448    Merging from release1_p12:
1449    o Modifications for using pkg/exf with pkg/seaice
1450      - improved description of the various forcing configurations
1451      - added basic radiation bulk formulae to pkg/exf
1452      - units/sign fix for evap computation in exf_getffields.F
1453      - updated verification/global_with_exf/results/output.txt
1454    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1455      (SBO) core products, including oceanic mass, center-of-mass,
1456      angular, and bottom pressure (see pkg/sbo/README.sbo).
1457    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1458      to avoid negative values in shallow regions.
1459      - updated verification/natl_box/results/output.txt
1460      - updated verification/lab_sea/results/output.txt
1461    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1462    o Added useSingleCpuIO option (see PARAMS.h).
1463    o Updated useSingleCpuIO option in mdsio_writefield.F to
1464      work with multi-field files, e.g., for single-file pickup.
1465    o pkg/seaice:
1466      - bug fix in growth.F: QNET for no shortwave case
1467      - added HeffFile for specifying initial sea-ice thickness
1468      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1469    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1470      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1471    o pkg/seaice:
1472      - adjoint-friendly modifications
1473      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1474    
1475    checkpoint48e_post
1476    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1477    o dynamics: change definition of computational domain & adapt mom_fluxform
1478      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1479    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1480        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1481        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1482        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1483        inverted_barometer solid-body.cs-32x32x1
1484      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1485    
1486    checkpoint48d_post
1487    o in preparation for r*:
1488     a) use pre-computed gradient of hydrostatic potential:
1489        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1490     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1491        => affects results of glob_oce_pressure (different truncation error)  
1492      update output.txt of ideal_2D_oce & global_ocean_pressure
1493    
1494    checkpoint48d_pre
1495    o in preparation for r*:
1496      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1497      pass the 2 comp. of the grad. as arguments to momentum S/R.
1498      but for the moment, only used if it does not change the results.
1499    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1500    
1501    checkpoint48c_post
1502    Modifications in treatment of initial flux forcing controls
1503    to avoid extra storing of flux fields.
1504    
1505    checkpoint48c_pre
1506    o Added tidal_basin_2d experiment (currently 1D!)
1507    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1508    
1509    checkpoint48b_post
1510    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1511     (modification to pressure gradient not yet implemented)
1512    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1513      (for U & V) that are used for vertical advection of momentum.
1514    
1515    checkpoint48a_post
1516    o In preparation for r*, use temp. array to compute vertical transport
1517       in flux-form momentum pkg. => change results of few test-exp.
1518      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1519                        lab_sea, natl_box & plume_on_slope
1520    
1521    checkpoint48
1522    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1523    
1524    checkpoint47j_post
1525    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1526    o moved adexch from forward_step to addummy_in_stepping
1527    o added exch in ctrl_map_...
1528    o aveFreq.=0. at end of cost_final to avoid overwrite in
1529      reverse checkpointing loop
1530    o Yet more changes in gmredi:
1531      * adgmredi_calc_tensor
1532        avoiding all recomputation of gmredi_slope_limit
1533      * adgmredi_x/y/rtransport
1534        added flag for excessive storing to avoid recomp. of
1535        u/v/rtans, dTdx/y/z
1536        -> this is not really necessary and very memory-consuming
1537      * adgmredi_slope_psi:
1538        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1539      * gmredi_slope_limit
1540        re-activated full calculation of taperfct for case 'ac02'
1541    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1542    
1543    checkpoint47i_post
1544    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1545    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1546      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1547    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1548    o gmredi: fix few bugs.
1549    
1550    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1551    This will be a good checkpoint to plug into the ecco-branch.
1552    o few modif.'s to get latest version adjointed
1553      (mainly kick out code in ini_linear_phisurf)
1554    o modif's to run adjoint with exactConserv
1555    o case GM_BOLUS_ADVEC should be cleaned
1556      S/R gmredi_slope_psi should be cleaned
1557    o verification/carbon now has exactConserv=.TRUE.
1558    
1559    checkpoint47g_post
1560    o time-average AIM output: becomes independent from statvars time-average
1561      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1562    o After TAF bug fix:
1563      Tested adjoint of gmredi package.
1564      Tests were done with checkpoint47 rather than with latest
1565      checkpoint47f_post since the latter is broken for the adjoint
1566      verification/carbon/ contains both ADM and TLM gradient checks.
1567    Here they are, before they get changed/lost/stolen.
1568    Mostly modif.'s to fix numerical sensitivities.
1569    Gradient checks OK for
1570    - GM_taper_scheme:
1571      * clipping
1572      * ac02
1573      * linear
1574      * glw91
1575      * dm95
1576      * ldd97
1577    - GMREDI_OPTIONS:
1578      * GM_VISBECK_VARIABLE_K
1579      * GM_NON_UNITY_DIAGONAL
1580      * GM_EXTRA_DIAGONAL
1581      * GM_BOLUS_ADVEC
1582    in conjunction with data.gmredi parameters to be checked in
1583    in a few minutes under verification/carbon/code/
1584    
1585    checkpoint47f_post
1586    Merging from release1_p10:
1587    o modifications for using pkg/exf with pkg/seaice
1588      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1589        and SEAICE_EXTERNAL_FLUXES
1590      - pkg/exf CPP options EXF_READ_EVAP and
1591        EXF_NO_BULK_COMPUTATIONS
1592      - usage examples are Experiments 8 and 9 in
1593        verification/lab_sea/README
1594      - verification/lab_sea default experiment now uses
1595        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1596    
1597    checkpoint47e_post
1598    o created a tag prior to creating a branch
1599    
1600    checkpoint47d_post
1601    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1602      at the bottom boundary had an erroneous half slip boundary condition
1603    o added bottom drag and no slip boundary condition capabilities to
1604      oceanic pressure coordinates code
1605    o added new verification experiment global_ocean_pressure, this experiment is
1606      also described in the tutorial section of the manual
1607    checkpoint47d_pre
1608    
1609    checkpoint47c_post
1610    o Added a verification experiment for a global cubed-sphere ocean run
1611      -  verification/global_ocean.cubed32x32x30
1612      -  uses pkg/therm_seaice and pkg/bulk_forcing
1613    
1614    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1615    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1616      when using P-coordinate; only implemented for atmospheric config.
1617    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1618      NOTES: requires option NONLIN_FRSURF to be "#define".
1619    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1620    
1621    checkpoint47b_post
1622    Merging from release1_p9:
1623    o pkg/seaice
1624      - removed GOTO's and added taf directives
1625      - double precision constants to reduce the g77 (Linux)
1626        to F77 (SGI) differences reported in release1_p8
1627    o tools/genmake
1628      - added SGI options
1629    o verification/testscript
1630      - updated to that of checkpoint47a_post
1631    o verification/global_ocean.90x40x15/input/eedata
1632      - modified for SGI f77 compatibility
1633    o verification/lab_sea
1634      - added description of sea-ice model
1635      - added missing matlab routines
1636      - added test of thermodynamics parallelization
1637    
1638    checkpoint47a_post
1639    o new pkg: aim_v23
1640     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1641       for now, keep the same surface forcing as before.
1642     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1643     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1644     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1645    o add diagnostic of surface correction term in monitor output
1646    
1647    o bulk_force and therm_seaice
1648    - Two packages:  bulk_force (Bulk forcing)
1649      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1650    - Earlier integration from Stephaine Dutkiewicz
1651      and Patrick Heimbach.
1652    - Two ifdef statements for compile time,
1653       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1654    
1655    checkpoint47
1656    differentiable version of checkpoint46n_post
1657    o bug fix in quasihydrostaticterms
1658    o * "clean" adjoint code (in terms of extensive recomputations)
1659        can now be obtained for all GMREDI options (i.e. for
1660        - GM_VISBECK_VARIABLE_K
1661        - GM_NON_UNITY_DIAGONAL
1662        - GM_EXTRA_DIAGONAL
1663        - GM_BOLUS_ADVEC )
1664      * However, wrong gradient check problem remains unsolved.
1665      * New CPP options have been introduced for different
1666        tapering schemes
1667    o external_fields_load now part of differentiation list
1668    o pressure needs multiple storing;
1669      would be nice to have store_pressure at beginning or
1670      end of forward_step, e.g. by having phiHyd global (5-dim.)
1671      (NB: pressure is needed for certain cases in find_rho,
1672      which is also invoked through convective_adjustment).
1673    o recomputations in find_rho for cases
1674     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1675    o #define ATMOSPHERIC_LOADING should be differentiable
1676    o ini_forcing shifted to begining of initialise_varia
1677    o Incorporating QNVS line search routines into MITgcm
1678      (this is separate code, and therefore not under pkg)
1679      lsopt/, optim/
1680    o Updated verification/carbon/
1681      - #define GM_VISBECK_VARIABLE_K
1682      - GM_taper_scheme    = 'ldd97'    
1683    
1684    checkpoint46n_post
1685    Merging from release1_p8:
1686    o verification/natl_box:
1687      updating new external_fields_load routine
1688    o New package: pkg/seaice
1689      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1690      The sea-ice code is based on Hibler (1979-1980).
1691      Two sea-ice dynamic solvers, ADI and LSR, are included.
1692      In addition to computing prognostic sea-ice variables and diagnosing
1693      the forcing/external data fields that drive the ocean model,
1694      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1695      The implied surface heat flux is then stored in variable
1696      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1697      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1698      non-local transport term.  Because this call precedes model
1699      thermodynamics, temperature under sea-ice may not be "exactly" at
1700      the freezing point by the time theta is dumped or time-averaged.
1701      N.B.: fairly large differences in accuracy occur across
1702            different platforms/compilers; comparison between
1703            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1704            generated output gives:
1705       T           S           U           V
1706      C D M    c        m  s        m  s        m  s        m  s
1707      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1708      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1709      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1710    
1711      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1712    o GAD:
1713      - generated new common blocks to account for call of
1714        same gad routines with differing traceridentities
1715        (needed to modify tracerIdentity indices in GAD.h)
1716      - generated separate common blocks for case useCubedSphereExchange
1717        (Department of Futurology)
1718      - parameter lists to gmredi_?transport: added tracerIdentity
1719      - added new key indices to tamc.h
1720    o external_fields_load:
1721      - added this routine to TAF list
1722      - needed to make some common blocks global and additional storing
1723        along the same lines as exf package (checkpoint_lev?_directives.h)
1724    o exf:
1725      updated external forcing package
1726      - bug fixes carried over from ecco-branch
1727        (missing OBCS_OPTIONS.h in two routines)
1728      - enable easy to use "no forcing".
1729      - added exf I/O for atmospheric loading
1730      - added exf I/O for runoff data
1731      - transfered scaling between exf <-> MITgcm to exf namelist
1732    o Adding new verification experiment global_with_exf.
1733      This verification experiment is almost identical to the
1734      global_ocean.90x40x15 experiment, except that it uses
1735      the exf (and cal) package instead of the
1736      external_fields_load routine (cf README file).
1737    
1738    checkpoint46m_post
1739    o modified testscript to return -- when there are no lines of "%MON" output
1740    o added new flag "quasiHydrostatic" for QH mode
1741      and new routine quasihydrostaticterms()
1742    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1743      New routine: mom_u_coriolis_nh()
1744    o fixed sign of non-hydrostatic metric terms in u and v equations.
1745      Depend on correct sign of gravitySign.
1746    o added work.pc* to .cvsignore in aim directories using ifc
1747    o introduced flag for controllin non-hydrostatic metric terms
1748    o removed gravitySign from PARM04
1749    o switched to g77/ifc from pgf77 in aim experiments
1750    
1751    checkpoint46l_post
1752    o made convective adjustment work with pressure coordinates:
1753     - changed the direction of k-loop in convective_adjustment.F for the
1754       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1755     - adjusted the reference pressure k-index in convective_adjustment.F
1756     - adjusted the convection condition in convect.F (in analogy to
1757       calc_ivdc.F)
1758     - convective_adjustment no longer computes anything on the halos
1759     - removed the warnings about negative salinity from find_rho.F and
1760       find_alpha.F; instead the new routine look_for_neg_salinity, called
1761       at the beginning of find_rho, find_alpha, and find_beta, does a
1762       check of the entire slice, if CPP-option
1763       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1764    checkpoint46l_pre
1765    
1766    checkpoint46k_post
1767    o fixed the verification/global_ocean.90x40x15 experiment:
1768     - new bathymetry (the world according to A., JMC, and M.)
1769     - new initial fields and forcing fields (*.bin files)
1770     - new POLY3.COEFFS (for the next release one should switch to a full
1771       equation of state: JMD95P or MDJWF)
1772     - fixed several errors and redundancies in the data file
1773     - experiment uses looped cells
1774     - added matlab directory with diagnostic scripts for plotting of output
1775    
1776    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1777     - read AIM physics parameters from a file (data.aimphys)
1778     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1779    
1780    checkpoint46j_post
1781    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1782    o move wVel computation at the end of the time step, in S/R integr_continuity
1783    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1784    o update timeave pkg for wVel diagnostic.
1785    checkpoint46j_pre
1786    
1787    checkpoint46i_post
1788    o Clean up AIM package (and keep the results unchanged):
1789      include CPP_OPTION and use IMPLICT NONE in all routines ;
1790      declare all the variables _RL ; use _d 0 for all numerical constants.
1791      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1792    
1793    checkpoint46h_post
1794    o cleaned up the use of rhoNil and rhoConst.
1795      - rhoNil should only appear in the LINEAR equation of state, everywhere
1796        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1797        and the dynamical equations are all divided by rhoConst
1798    o introduced new parameter rhoConstFresh, a reference density of fresh
1799      water, to remove the fresh water flux's dependence on rhoNil. The default
1800      value is 999.8 kg/m^3
1801    o cleanup up external_forcing.F and external_forcing_surf.F
1802      - can now be used by both OCEANIC and OCEANICP
1803    checkpoint46h_pre
1804    
1805     Added code to convert surface volume flux (fresh water) into
1806     a mass flux when using P coordinates in the ocean (OCEANICP).
1807     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1808    
1809    checkpoint46g_post
1810    o Include a new diagnostic variable phiHydLow for the ocean model
1811      - in z-coordinates, it is the bottom pressure anomaly
1812      - in p-coordinates, it is the sea surface elevation
1813      - in both cases, these variable have global drift, reflecting the mass
1814        drift in z-coordinates and the volume drift in p-coordinates
1815      - included time averaging for phiHydLow, be aware of the drift!
1816    o depth-dependent computation of Bo_surf for pressure coordinates
1817      in the ocean (buoyancyRelation='OCEANICP')
1818      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1819        Theta, Salinity, and Pressure in the parameter list. This routine is
1820        presently contained in find_rho.F. This routine does not give the
1821        correct density for 'POLY3', which would be a z-dependent reference
1822        density.
1823    o cleaned up find_rho
1824      - removed obsolete 'eqn' from the parameter list.
1825    o added two new verification experiments: gop and goz
1826      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1827    checkpoint46g_pre
1828    
1829    checkpoint46f_post
1830    o Enable tangent linear (forward mode) gradient checks:
1831      - extended active file handling to g_... files
1832      - added TANGENT_SIMULATION to theSimulationMode
1833      - extended grdchk package accordingly
1834    o added tangent linear setup in verification/carbon/code_ftl
1835    o added adjoint setup in verification/front_relax/code_ad
1836    
1837    checkpoint46e_post
1838    o Added new equation of state -> MDJWF
1839      - EOS of McDougall et al., 2002, JAOT, submitted
1840      - caveat: the equation of state is only valid for a smaller (more
1841        realistic?) range of values than JMD95P/Z and UNESCO
1842      - added masks to the calculation of pressure in store_pressure
1843      - added more check values for density in check_eos (ini_eos.F), some of
1844        the old check values are out of the range of the MDJWF-eos, so don't
1845        expect perfect matches for those
1846    checkpoint46e_pre
1847    
1848    checkpoint46d_post
1849    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1850      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1851      case of pressure coordinates. eosType='JMD95Z' in
1852      combination with buoyancyRelation='OCEANICP' now causes an error.
1853    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1854      in find_alpha/beta.
1855    checkpoint46d_pre
1856    
1857    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1858      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1859    
1860    checkpoint46c_post
1861    o Changes necessary for ocean in p-coordinates
1862     -  Added new buoyancy relation = 'OCEANICP'
1863     -  Added new parameters = gravitySign (this used to be contained inside
1864        the factor dRdZ which I added when we first switched to R coordinates).
1865     X GM/Redi is not compatible (yet)
1866     X bottom drag and no-slip need to be debugged.
1867    checkpoint46c_pre
1868    
1869    checkpoint46b_post
1870    o Added new equation of state -> JMD95Z and JMD95P
1871      - EOS of Jackett and McDougall, 1995, JAOT
1872      - moved all EOS parameters into EOS.h
1873      - new routines ini_eos.F, store_pressure.F
1874    o Added UNESCO EOS, but not recommended because it requires
1875      in-situ temperature (see JMD95)
1876    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1877      unesco.f to be used with POLY3
1878    checkpoint46b_pre
1879    
1880    checkpoint46a_post
1881    o Added (atmospheric) pressure loading
1882      - new field in FFIELDS.h, etc...
1883      - new cpp flag ATMOSPHERIC_LOADING
1884    o Changed hFacC to _hFacC in calc_phi_hyd.F
1885    o Added SHORTWAVE_HEATING to some files for consistency
1886    checkpoint46a_pre
1887    
1888    checkpoint46
1889    further merges from release1_p5
1890    o new ctrl package
1891      - adopted from ECCO environment to enable optimization
1892      - added Eliassen Palm fluxes to controls
1893    o added Eliassen Palm flux controls to gradient check package
1894    o cost package
1895      - Compatible with new ctrl package
1896      - added Eliassen Palm cost hooks
1897      - modif's of existing cost functions
1898    o Adjoint-related bug fixes in kpp:
1899      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1900      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1901    o autodiff package
1902      - flow directives:
1903        + new for S/R do_the_model_io
1904        + enhanced for S/R checkpoint
1905        + new gmredi.flow
1906      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1907        disable adcommon.h/g_common.h by default.
1908      - fixed problem for adjoint of global_max
1909    o modified verification/carbon/
1910    o New setup for adjoint of global_ocean
1911    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1912    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1913    o incorporated hooks for sponge layer code (external_forcing.F)
1914    
1915    checkpoint45d_post
1916    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1917    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1918      (affects plume_on_slope "cg2d" output)
1919    o add new parameter deltaTfreesurf for free-surface time stepping
1920    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1921    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1922    o change phiMin in exp1 (to agree with documentation)
1923    o add new flags:
1924     - T,S forcing inside/outside Adams-Bashforth
1925     - turn off temp,salt advection and/or forcing
1926     - for each tracer, define internal flag for multiDimAdvection & A-B
1927    o monitor: change definition of KE to check conservation of Energy
1928    
1929    checkpoint45c_post
1930    o Removed f90 comments ("!")
1931    o Modified initialisations to enable exf package for MITgcm
1932      (without invoking ECCO_PACKAGE).
1933    o modifications to gradient check package (Martin Losch)
1934      - enable centered differences
1935      - modified format of standard output
1936    
1937    checkpoint45b_post
1938    o cleaned exchange calls in cg2d
1939    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1940    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1941      to configure barotropic setup (Martin Losch)
1942    o moved some initialisations within bi,bj loop in dynamics
1943      (TAF flow dependency)
1944    o in initialise_varia, moved call packages_init_variables
1945      before convective_adjustment_init
1946      (corresponding adjustment of TAF tape initialisation).
1947    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1948    
1949    checkpoint45a_post
1950    o compute Rho over the whole domain (extend iMin,jMin indices)
1951    o specific exchange for X-slice domain (case Ny=1)
1952    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1953    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1954    
1955    checkpoint44h_post = checkpoint45
1956    o Fix to restore differentiability:
1957      place at which packages_init_variables is called in
1958      initialise_varia is crucial for reverse control flow.
1959    o modifications in GMRedi to enable stable adjoint
1960      (corresponding modif's in thermodynamics, dynamics)
1961    o added missing hook for sponge layer code in external_forcing
1962    o modified test cost functions
1963    o storing in gad_advection (plus removal of write(0,*)!
1964    o missing headers TR1.h added in convective_adjustment routines
1965    o errorMessageUnit set non-equal zero in eeboot
1966      (conflict on some platforms, e.g. IBM SP3)
1967    o modified carbon verif.
1968    
1969    checkpoint44h_pre
1970    o vertical grid option: allow to put the Interface at the middle between
1971      2 cell-centers ; replace delZ in pkg/kpp by drF.
1972    o GM Advective form: Tracers are advected using the residual transport (=
1973      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1974    
1975    checkpoint44g_post
1976    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1977      results) ; ifdef missing in thermodynamics.F
1978    
1979    checkpoint44f_pre,checkpoint44f_post
1980    o added PTRACERS package
1981      This allows an arbitrary number of passive tracers to be integrated
1982      forward simultaneously with the dynamicaly model.
1983      + Implemented so far:
1984        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1985        - I/O and checkpointing
1986        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1987      + Not implemented so far:
1988        - KPP
1989        - OBCS
1990      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1991        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1992        line in data.pkg.
1993      + This package is disabled by default since it increases storage.
1994    
1995    
1996    o testscript: added -cleanup option
1997    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1998                 b) enable to filter 2D fields.
1999    
2000    checkpoint44e_pre,post
2001    o re-wrote convective adjustment to use pre-calculated weights
2002      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2003      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2004      Original calls to convect() still in place.
2005    
2006    chkpt44d_pre,post
2007    o added missing EXCLUDE_MONITOR flags
2008    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2009      (incompatible typ in MIN/MAX expressions caused problems
2010      on IBM SP3)
2011    o in genmake added variable MAKEDEPEND
2012      plus resetting for case SunOS
2013    o added timer_stats.c routine for IBM SP3
2014    o removed variables in dynamics
2015    !!! I forgot to create tag chkpt44d_pre !!!
2016    !!! But chkpt44d_pre = chkpt44c_post    !!!
2017    
2018    o real fresh water flux implemented with non-linear free-surface.
2019    
2020    chkpt44c_pre,post
2021    o few fix (mask in shap_s2, EmPmR in external_field_load,
2022      USE_NATURAL_BCS in solve_for_P);
2023    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2024    
2025    checkpoint44b_pre/_post
2026    o merge of relevant stuff from the ecco-branch:
2027      - genmake: removed $S64 overwrite for case SunOS
2028      - pkg/exf: update and corrections for field swapping and obcs
2029      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2030                  harmonized between ECCO and MITgcm
2031      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2032                      updated checkpointing_lev... lists for obcs
2033      - model/src: minor changes in forward_step, plot_field
2034                   added directive for divided adjoint in the_main_loop
2035      - pkg/mdsio: added mdsio_gl_slice
2036    
2037    o check parameters & config (chkpt44a_pre,post)
2038    o OBC and NonLin_FrSurf.
2039    
2040    checkpoint44
2041    o fix bug in mom_vi_del2uv
2042    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2043    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2044    o update AIM experiments (NCEP input files)
2045    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2046    o added some stuff for AD
2047    
2048    checkpoint43
2049    o added two new advection tests
2050    o added global 4x4 degree ocean test
2051    o added test of H&S94 with free surface on cube
2052    o some final mods for gradient check, adjoint,...
2053    
2054    checkpoint42
2055      Fixed AD-related problems:
2056    o Store directives up-to-date with re-arranged Adams-Bashforth
2057      (mainly thermodynamics.F)
2058    o New store directives for multi-dim. advection schemes
2059      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2060      * new common block and key passkey
2061      (mainly gad_advection.F)
2062    o Modified store directives for split of dynamics/thermodynamics
2063      for the case ALLOW_KPP
2064    o Cleaned argument list for timestep_tracer.F
2065    
2066    checkpoint41
2067    o re-formatted/added comments in prologues of key subroutines
2068      to work with protex
2069    
2070    checkpoint40
2071    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2072    o added FLT (floats) package from Arne along with demo. experiment
2073    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2074      implementation of forward-in-time forcing terms
2075    o more mods for non-linear free-surface including new variable
2076    o modified multi-dim method to work on cube
2077    o bug fix in KPP (from DM)
2078    
2079    checkpoint40pre9
2080    o added DST advection schemes
2081    o fix MPI bug on SGI's
2082    o modifications for non-linear free-surface
2083    o fixed conditionals for fixed flow/passive tracer only mode
2084    o added tension/strain form of stress tensor
2085    o changes to commenting of arguments for TAF/TAMC
2086    o added/updated many matlab scripts
2087    o added multi-dimensional advection method for tracers
2088      
2089    checkpoint40pre8
2090    o new package rw/
2091      Added method for dumping intermediate local arrays:
2092      mdsio_writetile - same as mdsio_writefield except works from inside
2093                        bi,bj loop
2094      mdsio_writelocal - same as mdsio_writetile except works for local
2095                         arrays
2096      write_local_r? - higher-level wrapper for mdsio_writelocal
2097      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2098      Example given at end of mom_vecinv.F that dumps some local arrays.
2099    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2100      control flux-form versus vector invariant code.
2101      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2102      or genmake -DISABLE ...
2103    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2104      (additional storing is now needed for case vecinv;
2105      currently nothing implemented to switch this storing off
2106      in case fluxform is used since no CPP flag available).
2107    
2108    checkpoint40pre7
2109    o bug fix in dynamics.F
2110      calc_viscosity called before k=1,Nr loop.
2111    o added some #ifdef's ALLOW_PASSIVE_TRACER
2112    o cleaned initialisations in ctrl_map_ini
2113      related to TAF
2114    
2115    checkpoint40pre6
2116    o split dynamics into thermodynamics & dynamics
2117    o corresponding split of calc_diffusivity into
2118      calc_diffusivity, calc_viscosity
2119      (kpp_calc_diff, kpp_calc_visc).
2120    o Added diffkr, kapgm to control variables
2121    o bug fix in gmredi_slope_limit for ldd97
2122    
2123    checkpoint40pre5
2124    o proper initialization of Adams-Bashforth time stepping
2125      + uses forward step for very first step of model (iter=0)
2126    o re-generated *all* output since almost all output is modified by this
2127      change (sorry but we've been putting this one off for about 2 years)
2128      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2129        *not* regenerated since they are already out of date and I don't
2130        want to create the impression that they are suddenly working.
2131    o removed KAP stuff for DEC's
2132    o modified/added many .cvsignore files in */code and */input
2133    o added new expt "solid-body.cs-32x32x1"
2134      + this uses an alternative form of ini_curvilinear_grid.F which
2135        is not necessarily any better than the current one...
2136    
2137    checkpoint40pre4
2138    o added re-initialisations of utrans,vtrans,rtrans in
2139      calc_common_factors which are crucial for TAF.
2140    o extended iMin,jMin range for calc_common_factors,
2141      calc_diffusivity
2142    o added option ALLOW_PASSIVE_TRACER
2143    o a few minor updates and fixes
2144    
2145    checkpoint40pre3
2146    o created calc_gtr1.F for gad package
2147    o split the_main_loop and re-introduced forward_step
2148    o some recomputations of nIter0 for TAMC
2149    
2150    checkpoint40pre2
2151    o Updated to latest branch of AJA, JMC
2152    o Added gradient check package
2153    o Added routines for passive tracer handling
2154    o Added carbon sequestration sensitivity experiment
2155    
2156    checkpoint39
2157     o Modifications and fixes to support TAMC
2158       (mainly missing or wrong directives)
2159     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2160       in addummy_in_stepping
2161     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2162     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2163     o Included following packages:
2164       cal: calendar
2165       exf: external forcing
2166       ecco: essential routines to control use of cal, exf
2167             (NB: this is not the full ECCO environment)
2168     o disabled some packages by default in genmake
2169    
2170    checkpoint38
2171     o see notes_c37_adj.txt
2172     o corrected wrong layer index in external_forcing_t
2173     o replaced the_main_loop/forward_step by the_main_loop
2174     o removed forceoutput from write_state
2175       (replaced criteria for initial/final state)
2176     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2177    
2178    checkpoint37
2179     o mdsio.F routine split and packaged in pkg/mdsio
2180       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2181        used unless genmake -disable=mdsio)
2182     o allow a more precise surface-geopotential gradient for the atmosphere
2183       taking into account the change in space of Alpha (=1/rho) at the surface.
2184     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2185       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2186     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2187       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2188       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2189     o Time-Average diagnostics defined as a pseudo package "timeave".
2190     o pickup files : old pickup (before c35) did not work with new code (c35
2191       and after) unless activating 2 commented lines in initialise-varia.
2192     o Non-Hydrostatic pickup file Pb fixed.
2193     o bug with Rigid-lid version (since c35) fixed.  
2194    
2195    checkpoint36
2196     o implement Crank-Nickelson barotropic time-stepping
2197     o recover Time-Average diagnostics
2198     o fix Pb in checkpoint (PR#19)
2199     o AIM become a standard package ; clean unused CPP_kees
2200    
2201    checkpoint35
2202     o subtantial rewrite of dynamics.f
2203     o allows staggered time-stepping
2204     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2205     o added bottom drag (linear + quadratic)
2206    
2207    checkpoint34
2208     o Modified exchange routines for correct reverse simulation.
2209     o Added verification output to comply with bug fix in impldiff.F
2210       as of c33 (exp2, natl_box).
2211     o Corrected store directives in dynamics.F
2212     o Corrected array boundaries in impldiff.F
2213     o Corrected array dimensions in gmredi.
2214       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2215     o Added routine GLOBAL_SUM_INT to global_sum.F
2216     o Added mdsio_gl.F for ECCO purposes.
2217    
2218    checkpoint33
2219     o Fixed bug in lower BC in impldiff.F
2220     o Fixed confusion about units of forcing arrays in FFIELDS.h
2221       namely Fu,Fv,Qnet,Qsw,EmPmR:
2222       - Removed verification/natl_box/code/external_fields_scale.F
2223         (did not differ from that in model/src)
2224       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2225         (see FFIELDS.h for description)
2226       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2227         kpp_calc.F and kpp_transport_t.F
2228       - Removed model/src/external_fields_scale.F and calls to it
2229       - verification/natl_box uses flux data with "atmospheric" sign so
2230         a special version of external_fields_load.F is used to
2231         change the data as it's read in. This way, the arrays
2232         have the right units and signs at all times tha a user could
2233         possibly use them.
2234     o Corrected genmake to delete a temporary file during configuration
2235    
2236    checkpoint32
2237     o Scaling of forcing fields moved from external_forcing.F to
2238       external_fields_scale.F, called directly after loading fields.
2239     o Surface relaxation terms added to surface tendency fields in
2240       extra subroutine.
2241     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2242       fields.
2243     o Changes in GMRedi to comply with packaging structure.
2244     o Modifications and bug fixes in KPP package.
2245     o Verification experiment for KPP added (verification/nat_box/)
2246    
2247    checkpoint31
2248     o Packages interface brought in line with defined standard
2249       -> new routines packages_...F
2250       -> changes in initialise_fixed.F, initialise_varia.F
2251       -> enables initialisation interface for ECCO package
2252     o Rescaling of external forcing fields immediately after read
2253       (removed from external_forcing.F)
2254       -> new: surface_fields_scale.F
2255       -> affects ini_foorcing.F, external_fields_load.F
2256     o Computation of surface tendencies before tendency updates.
2257       -> new: external_forcing_surf.F
2258     o Change of variable names useGMRedi, useKPP, useECCO
2259     o Further changes in dynamics.F, impldiff.F for TAMC
2260     o Tested for experiments 0, 2, 4.
2261       - not yet tested for GMRedi.
2262       - not yet tested for KPP.
2263    
2264    checkpoint30
2265     o Updates for OBCs
2266     o New experiment for test OBCs (internal_wave)
2267     o New output.txt in verification/exp4/results/
2268     o Updates for KPP: calculation of viscosity corrected, new variables
2269       kpp_dumpFreq and kpp_taveFreq
2270     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2271       and entry for T90 in genmake
2272    
2273    checkpoint29
2274     o packaged KPP and GM/Redi
2275    
2276    checkpoint28
2277     o Corrected initialization of hFacMin for difference vertical coordinates
2278     o Modified calculation of partial cell thickness to more robust algorithm
2279     o config_summary.F: replaced write_1D_... by write_0D_...
2280       read_write.F: added subroutines write_0D_...
2281     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2282       included some initialisations required for TAMC.
2283     o routine calc_isoslopes: modified sqrt computation to make it
2284       differentiable for zero argument.
2285     o routines dynamics, impldiff:
2286       included store directives and tape key computations required for TAMC.
2287     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2288    
2289    checkpoint27
2290     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2291       formulation works properly with variable resolution.
2292     o restructured the calling tree between the_model_main() and dynamics()
2293     o split initialise() into initialise_fixed() and initialise_varia()
2294     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2295       in new routine ini_psurf()
2296    
2297    checkpoint26
2298     o moved some #ifdef in optional routines to encompass everything
2299       except the argument declarations. This was using up some memory.
2300     o fixed macros like _ADT to work with both versions of Linux cpp
2301     o cleaned up some unused and uninitialized variables
2302       (helps when debugging with strict compile options)
2303     o split up CPP_EEOPTIONS.h into options and macros
2304       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2305     o patch for 2 processor JAM mode
2306    
2307    checkpoint25
2308     o updates for OBCs and NH
2309     o dramatically reduced memory usage
2310     o added "JAM" routines for use on Artic network
2311     o parameterization of convection by implicit vertical diffusion
2312     o added a diagnostic of convective index
2313     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2314       (this is was partly for OBCs and NH but also in anticipation of
2315        an explicit free-surface option)
2316     o initial state input files for U and V
2317    
2318    checkpoint24
2319     o Removed some spurious "REAL"s
2320     o Updated KPP to latest version from JPL
2321     o Added a COS(latitude) in horizontal viscosity
2322    
2323    checkpoint23
2324     o Added del^4 diffusion for salt and temperature
2325     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2326    
2327    checkpoint22
2328     o Made many small changes: implicit none, format(i5), etc...
2329     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2330    
2331    checkpoint21
2332     o Introduced new I/O package that supports direct-access records (mdsio.F)
2333     o Split-up mid-level I/O routines
2334     o Updated input data for experiments 0,1,2,4 and 5
2335     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2336    
2337    checkpoint20
2338     o Tidied up open-boundaries some more
2339     o Added non-hydrostatic code
2340     o Fixed some input data
2341     o Modified MPI start-up to work in "coupled" context.
2342    
2343    checkpoint19
2344     o Tidied up directory structure for verification experiments.
2345     o Added new code for open boundaries.
2346     o Corrected advective terms near boundaries.
2347     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2348     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2349     o Split default parameters out of ini_parms.F into set_defaults.F.
2350    
2351    checkpoint18
2352     o Further changes for optional code generation with
2353       CPP - ugh!
2354    
2355    checkpoint17
2356     o Beginning to incorporating modularity
2357       for supporting atmos. and ocean configs.
2358     o Small changes for TAMC complinace
2359     o New ultra simple test case. Barotropic box
2360       configuration "exp0".
2361    
2362    checkpoint16
2363     o Minor changes to exchange routines to support
2364       accumulation in reverse mode. Adjoint of an
2365       assignment is an addition.
2366     o Changes to support compilation by TAMC (LR(1)
2367       syntax) and by g77 under Linux ( 72 character
2368       limit ).
2369    
2370  checkpoint15  checkpoint15
2371   Rewrote exchange routines to allow   Rewrote exchange routines to allow
2372   o General tile <-> tile connectivity.   o General tile <-> tile connectivity.

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