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revision 1.107 by cheisey, Mon Dec 2 13:28:30 2002 UTC revision 1.517 by heimbach, Thu Jul 28 13:43:14 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    checkpoint57m_post
8    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
9      and advect_cs (use EXCH-2 and standard cs-32 grid files).
10    o pkg/exch2: filling of face-corner halo regions is optional
11      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
12    
13    checkpoint57l_post
14     tag before updating tutorials (pre-release-2)
15    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
16       for output and interpolation of input fields onto model grid)
17    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
18       Affects results of exp. rotating_tank ; update output.txt.
19    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
20          and taking the square quantity and/or using a fraction-weight field.
21    o fix aim_diagnostics_init.F mate numbers.
22    o add mnc output capability to diagnostics/diagstat and update
23      our cvsignore files for the ACSII output generated
24    
25    checkpoint57k_post
26    o lab_sea now uses diagnostics package and provides a suite of
27      new EXF diagnostics output.
28    
29    checkpoint57j_post
30    o exf
31      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
32        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
33        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
34      * extended diagnostics output
35        - now includes all EXF variables
36        - hs, hl moved to common block
37        - separate S/R for diagnostics, called after ctrl vector is added
38        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
39        - EXFqnet contains true Qnet (i.e. includes qsw)
40      * updated verif. lab_sea, global_with_exf
41      * Rearranging hflux (exf_mapfields -> exf_getforcing)
42        to ensure that diagnostics sees a true EXFqnet
43    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
44    o diagnostics pkg: change pointers so that 1 diagnostic can be used
45      several times with different frequencies.
46    o mnc-ify the thsice package as requested by Daniel Enderton
47      - the monitor--MNC output needs work
48      - many attributes need to be added (most are currently blank)
49    o mnc-ify theaim_v23 package as requested by Daniel Enderton
50      - many attributes need to be added (most are currently blank)
51    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
52    o add Sadourny like discretization to the 4th.O vorticity advection scheme
53    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
54      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
55         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
56    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
57     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
58    
59    checkpoint57i_post
60    o Diagnostics package was changed: diagnostic allocation is now deactivated
61      by setting an empty file name in the namelist (used to be by setting 0 frequency)
62    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
63      add 1rst Order upwind vertical Shear.
64    o add a quick fix for A/B checkpointing in OFFLINE mode
65    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
66      end-run around the C/Fortran linking horror in eesup/src/timers.F
67    o added pkg/runclock: allows user to terminate run based on wall clock
68    o added non-hydrostatic scaling parameter: nh_am2
69    o pkg/my82: futile attempt to make results compiler-independent by adding
70      some "_d 0", etc. no effect.
71    o for mnc output, fill the 'T' coordinate var with myTime and create a
72      separate 'iter' variable for iteration count
73    o pkg/diagnostics:
74      add new capability: output of Global/Regional & per-level statistics ;
75      tested against monitor output (including land & thSIce) on various exp.
76    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
77    
78    checkpoint57h_done
79      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
80      data.diagnostics, data.gchem, data.ptracers) is done.
81    
82    o pkg/diagnostics: prepare for Global/Regional statistics.
83      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
84    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
85      and rename it: DIFFERENT_MULTIPLE
86    
87    checkpoint57h_post
88    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
89    o pkg/diagnostics: change output frequency, now in seconds (instead
90      of Nb of iterations). This requires to change data.diagnostics.
91    checkpoint57h_pre
92    
93    o in mnc, let the user create the output dir if both mnc_outdir_date
94      and mnc_outdir_num are false
95    o add fflags() to pkg/diagnostics which allows one to specify, on a
96      per-file basis, the file precision [default behavior is unchanged]
97    o added diagnostics to pkg/kpp, including computation of mixed layer
98      depth based on a temperature/density criterion
99    o updated verification/natl_box to test the new pkg/kpp diagnostics
100    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
101    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
102    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
103      not mnc -- this mistake was found by JMC and is now corrected
104    
105    checkpoint57g_post
106    o add Adams-Bashforth 3rd Order time stepping:
107      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
108      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
109    checkpoint57g_pre
110    
111    o make lambda[Theta,Salt]ClimRelax spatially varying
112      (default remains spatially uniform constant based on tau)
113    o added new control variables
114      * init. uVel, vVel, etanN
115      * lambda[Theta,Salt]ClimRelax
116    o separate masks used for ctrl_pack/unpack 'from write_grid' output
117      (suggested by G. Forget)
118    
119    checkpoint57f_post
120    o add parameter "baseTime" = model base time = time at iteration zero
121      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
122      account for baseTime shift
123    o move Coriolis arrays from PARAMS.h to GRID.h
124    checkpoint57f_pre
125    
126    o mnc-ifying the seaice package
127    o introduced an alternative length scale calculation for use in the limiting
128      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
129    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
130    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
131      as well as grad(vort3).  Made it compatible with both approximate form
132      for the cubed sphere and full form of these gradients.  Added flag
133      useFullLeith to select between approximate and full form.  
134    o add "d0" in getcon.F to reduce differences between compilers/platforms
135      update output.txt of exp. fizhi-gridalt-hs
136    o change port_rand funtion to allow to set the seed.
137    o fix obscure MNC bug involving conversion between reals and integers
138      - it caused no problems with certain (eg. gcc, ifc) compilers but the
139        new version is now more standards-compliant
140    o adjoint-related modifications
141      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
142      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
143      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
144    
145    checkpoint57e_post
146    o Adding eddy stress controls a la Ferreira et al.
147    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
148    
149    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
150      update output.txt of exp. fizhi-gridalt-hs
151    o add more "Z" dimensions and associated coordinate vars to MNC
152    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
153    o parameter calendarDumps: when set, approximate months (30-31 days) and years
154      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
155      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
156      months and years.  Requires pkg/cal.
157    o diagnostics: add pickup functionality
158      - off by default for backwards compatibility
159      - current version only uses MDSIO -- MNC will be added
160    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
161    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
162    
163    checkpoint57d_post
164    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
165    o modify verification/ideal_2D_oce so that it tests the creation of mnc
166      output from the diagnostics package
167    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
168    o make genmake2 more portable by using ".$FS" instead of ".f" for more
169      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
170    o add coordinate variables to the MNC output from the diagnostics package
171    o change MNC-flags default value: true when useMNC=TRUE
172    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
173      the ability (off by default) to read the grid information using MNC
174    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
175    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
176    o do snap-shot diagnostics at the middle of the time-interval (instead of
177      at the end).
178    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
179      new test for AIM with thSIce + slab-ocean
180    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
181    o move state variable diagnostics to the beginning of the time step ;
182      (note: still needs some work specially for snap-shot diagnostics)
183      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
184    
185    checkpoint57c_post
186    o Change testing option (-ieee) to get closer agreement between g77 & ifort
187    o generate new output.txt files on faulks with g77 & the new -ieee option
188    checkpoint57c_pre
189    
190    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
191      update output.txt of exp. global_ocean.90x40x15
192    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
193      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
194    o add saltFlux(+File) forcing capability with periodicExternalForcing
195    o allow to use pkg diagnostics for GM-Redi & ThSIce output
196    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
197    o improvements for the MNC output from DIAGNOSTICS:
198      - correct handling of the unlimitied dimension
199      - all dims now have associated coordinate variables
200      - variables located at U, V, and Corner ("Z") points are now written
201        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
202        *all* data points are output
203    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
204    o added pkg/seaice/seaice_monitor.F
205    o mdsio_readfield.F can now read files visible only to master MPI process.
206    o pkg/seaice: some test code for ice-modified ocean stress
207    o exf_getffields interpolation defaults to bilinear for all scalar forcing
208      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
209      spurious negative numbers for precipitation and humidity.  Will cause
210      some small numerical differences for integrations using pkg/exf/exf_interp.F.
211    o pkg/ctrl/
212      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
213        May be enabled via doPackDiag
214      *  introduce z-scaling of
215         + gradient (doZscalePack) and
216         + control (doZscaleUnpack)
217    o pkg/mdsio/
218      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
219      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
220    
221    checkpoint57b_post
222    o simplify options in diagnostics_fill arguments (remove weird combinations)
223    o fix MNC coordinate variables so that they now contain per-face index
224      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
225      general, EXCH2 grids are only aligned to a "local" coordinate system
226    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
227    o Implement instantaneous output within pkg diagnostics:
228      setting a negative frequency in data.diagnostics produces
229     "snap-shot" output (as opposed to time-average if freq > 0)
230    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
231      NOTE: change ptracer diagnostics name: use 2 characters to work with
232            more than 9 tracers. Add also diagnostics of advect & diffus flux.
233    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
234      becomes the coordinate variable for the 'T' dimension
235    o add CF-style coordinate variables to MNC
236      - just a first cut:  numbers are meaningless on the cubesphere and
237        missing along the T axis but otherwise it works!
238    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
239    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
240    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
241      this is based directly on what the model compute, so that the content of
242      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
243    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
244    o clean up build options files for SunOS, in particular
245      - remove -traditional from xmakedepend
246      - change -xarch=v9 to -xarch=native for f77
247      - restore use of make (not gmake)
248      - add CC=gcc if using g77
249    o changes per discussion of AM, JMC, & EH3 today:
250      - move redundant "grid" variables out of "state" -- in preparation of
251        creating proper CF-style coordinate variables and in recognition
252        that any/all grid variables can be easily copied (eg. w/NCO) from
253        the grid files into any of the other NetCDF files
254      - *always* output grid variables with MDSIO (this will eventually be
255        changed)
256      - output MNC grid file if useMNC is true
257    o every instance of _END_MASTER() has been found and replaced with
258      _END_MASTER( myThid ) in order to satisfy certain picky Sun
259      preprocessors
260    o re-arrange diagnostics pkg initialisation:
261     - allow each package to extend the available diagnostics list
262     - add some checking and fix small problems (multi-threaded, ...)
263     - new S/R diagnostics_fill (replace fill_diagnostics):
264       look through the short list of active diag. (instead of the long list)
265       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
266    
267    checkpoint57a_post
268    o this set of changes restores TAMC compatibility
269      tested for global_ocean.90x40x15 adjoint on trough
270      (what a pain)
271    
272    checkpoint57a_pre
273    o some modifs in tools/build_options for sunos
274    o call ctrl_pack for ctrl at end for optimcycle=0
275    
276    checkpoint57
277    o add horizontal bi-harmonic viscosity for vertical velocity
278      - new parameter viscA4W (defaults to viscA4)
279      - affects only non-hydrostatic code
280      - to be done: no-slip lateral boundary conditions
281    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
282    o implement Implicit Vertical advection for pTracers
283    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
284      (implemented also for implicit vertical diffusion & advection)
285    o OBCS: extend application of tracer open boundary conditions
286      to a strip beyond the boundary of width Olx/Oly
287    o add call monitor to TAF set of required calls (flow directives)
288      and include in natl_box_adjoint
289    o untangle a few ifdefs related to cost, ctrl, autodiff
290      untangel a few ALLOW_ECCO_OPTIMIZATION
291    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
292      (theta2, salt2 in ecco_cost_weights)
293    
294    checkpoint56c_post
295    o OBCS as control variables
296      - update ctrl_ad_diff.list, obcs_ad_diff.list
297      - remove balance of obcs controls from default
298      - fix index bug nobcs in ctrl_init
299      - fix dummy fields filen in ctrl_pack
300      - add dummy weights for obcs
301    o lsopt: comment out fort.94 output
302    o optim:
303      - remove unnecessary header files
304      - adjusted namelists
305      - add xerbla.F to Makefile
306    o exf:
307      - multiple modifications of exf_check_range
308      - unit change in exf_init_runoff from [m/year] to [m/s]
309    o mdsio:
310      - i/o-vector change debugLevel from debLevA to debLevB
311    
312    checkpoint56b_post
313    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
314      is called from DO_THE_MODEL_IO
315      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
316      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
317      - clean up PTRACERS_WRITE_TIMEAVE a little
318    o add another verification experiment that tests both the cfc-pkg and
319      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
320      reactive tendencies treated inline with regular timestepping
321    o testreport previously did a lousy job of comparing small numbers, so
322      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
323      implemented in the little c-progam tmp_cmpnum.c which is embedded in
324      testreport.
325    o ptracers_monitor: bug fix for MPI
326    
327    checkpoint56a_post
328    o GCHEM: finish reorganizating the package
329      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
330        (introduces another 3D-array for each passive tracer, but only if
331        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
332        gchemTendency is not needed because the timestep is done separately)
333      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
334      - GCHEM is now---more or less cleanly---separate from PTRACERS
335      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
336        so clear to me how that should be done in a general way.
337    o CFC: improve formatting of output in CFC_ATMOS
338    o PTRACERS:
339      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
340        that ALL experiments with ptracers enable can be checked. This makes
341        GCHEM_MONITOR obsolete.
342      - include a runtime parameter PTRACERS_monitorFreq that defaults to
343        monitorFreq
344      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
345    o add PTRACERS (PTR0[1-5]) to testreport output
346    o exf_check_range:
347      * default changed to .TRUE.
348      * will check values for niter0 if debLevA, every timestep if debLevB
349      * STOP in exf_check_range if 'out of range'
350      * range chosen generous to allow for potential extema
351      TBD: a version with stricter range
352           permitted range would be runtime parameters
353    o GMredi:
354      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
355      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
356      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
357    o GCHEM:
358      - move call to GCHEM_FORCING_SEP, so that it is now called before
359        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
360      - introduced a useGCHEM runtime flag and applied it everywhere.
361      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
362        this flag is now only visible within GCHEM-pkg routines.
363      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
364        be replaced by a 3D array that is computed before thermodynamics; for
365        this, the tracer ID iTracer had to be included into the parameter list
366        of ptracers_forcing
367      - set up forward_step to call gchem_forcing, that will replace
368        gchem_forcing_int in ptracers_forcing
369      - cleaning up
370    o small cleaning of exch2: remove files that are also in eesupp/src
371    
372    checkpoint56
373    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
374    o mnc: cleanup "full" files--fixes out-of-memory problem
375    o ECCO-GODAE
376      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
377      * fully merged and updated from SIO code
378        windstress sign change affects
379        - exf_inscal_[u/v]stress
380        - sign of xx_tau[u/v] adjustments
381        - signs in cost_scat
382      * ctrl_get_gen: avoid update of tau[u/v] for first few days
383      * natl_box_adjoint updated and compressed
384      * 2-level checkpoint switch added
385        (tested in EXP. 1 of natl_box_adjoint)
386      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
387    o SVD
388      * first complete, non-hacked version for SVD calculations
389      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
390        performed via direct access files admtlm_vector.it????
391        (via ctrl_[un]pack)
392      * optimcycle is used for ARPACK iteration counter
393        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
394      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
395        and add linear transforms where necessary
396      * controls are initial/final SST, SSS (can be extended; need to check
397        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
398    o mdsio: filename info to both stderr, stdout
399    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
400      from sign change
401    
402    checkpoint55j_post
403    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
404      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
405    o add consistent build directories and .cvsignore files to verification
406    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
407    o make all subroutines 30 or less characters in length for certain older
408      compilers to work (a thorough search only turns up two routines in
409      pkg/ptracers)
410    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
411      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
412    
413    checkpoint55i_post
414    o change arrays for total vertical diffusivity (2.D if explicit,
415      3.D if implicit) ; each ptracer uses its own background value.
416    o added mnc/NetCDF output capability to ocn_compon_interf
417      - added bits to verification/cpl_aim+ocn so that it can run on
418        ITRDA and other clusters without the mpirun "-wd" option
419    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
420      configuration
421    o give MNC the ability to create additional files rather than
422      exceeding a specified file size limit "MNC_MAX_FILESIZE"
423      - the default is just less than 2GB which is a practical limit
424        on many systems
425    o Compute the non-local term using either KPP vertical diffusivity (=default)
426       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
427    
428    checkpoint55h_post
429    o add verification test "vermix"
430    o remove all the *_ioinc flags and replace with the single global
431      outputTypesInclusive flag
432    o allow to set a vertical profile of vertical diffusivity for T & S
433    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
434    o useMNC moved from data.mnc to data.pkg
435    
436    checkpoint55g_post
437    o Renaming carbon AD experiments to comply with testreport conventions
438    o Updating adjoint of Held-Suarez hs94.1x64x5
439    o Fixing directives for non-ECCO forward_step, after ECCO directives
440      have been fixed to avoid recomp. of do_oceanic_phys
441      Works well for global_ocean.90x40x15,
442      but recomp. issue remains for carbon
443    o Updating adjoint output for natl_box_adjoint after
444      pkg/ecco has been modified (see taga c55d_post)
445    
446    checkpoint55f_post
447    o rename to timeave_init_fixed
448    
449    checkpoint55e_post
450    o some delicate re-shuffle of store directives to avoid one
451      extra call of do_oceanic_physics
452      affects ecco_the_main_loop.F, do_oceanic_physics.F
453      checkpoint_lev1_directives.h
454    o NB: this may break global_ocean adjoint temporarily,
455      but it is clear how to fix it. Will do later, need this now.
456    
457    checkpoint55d_post
458    o ECCO specific cost function terms (up-to-date with 1x1 runs)
459    o ecco_cost_weights is modified to 1x1 runs
460    o modifs to allow observations to be read in as
461      single file or yearly files
462    o enable to read exf forcing fields as either
463      single file or yearly files (flag useExfYearlyFields)
464    checkpoint55d_pre
465    
466    o switch between 2-level and 3-level checkpointing
467    o add ability of MNC to write local and "partial" (eg. 2D slices where
468      the full 3D field is never actually stored) arrays to NetCDF files
469      with the correct (that is, the complete multi-dimensional) set of
470      array indicies
471      - used in mom_vecinv() to write the diagFreq output
472      - tested (demonstrated) in verification/aim.5l_cs
473    o further mnc-ification
474      - add verification/lab_sea to the list with mnc setups
475      - fix undefined mnc v-names in cd_code
476      - add kpp to mnc output (both snapshot and timeave)
477    o non-hydrostatic code
478      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
479        in calc_gw.F
480      - defaults to viscAh
481      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
482        friction or Leith) in non-hydrostatic mode, as long as there is
483        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
484    o pkg/cost
485      extend simple cost functions to treat time mean quantities
486      (T,U,V) via cost_accumulate_state from cost_tile
487    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
488        be 2 times larger than the minimum size the advection scheme requires.
489        now get a perfect conservation of salt in advect_cs test-exp (updated)
490    o GGL90 (Gaspar's TKE mixed layer)
491      - add horizontal diffusion of TKE, requires exchanges in
492        do_fields_blocking_exchanges, horizontal diffusivity is zero by
493        default. In OPA there is no horizontal diffusion of TKE but the
494        mixing coefficients are computed from a horizontal average of TKE of
495        6 points or so. I think that diffusion has a little more physical
496        justification.
497      - clean up ggl90_calc in the hope of reducing memory usage (this hope
498        was in vain)
499      - mask tke-variable in ggl90_init
500    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
501    o fix biharmonic diffusion on CS-grid.
502    o more obcs stuff
503      - added obcs_external_fields_load as an alternative to the EXF-pkg option
504        for reading boundary values. This routine is called from
505        obcs_prescribe_read
506      - updated obcs_check
507      - changed sponge layer relaxation parameter units for days to seconds
508      - turned off sponge layer by default
509      - changed argument list of OBCS_CALC to myTime+deltaTclock
510      - fixed about 35 bugs in obcs_external_fields_load
511    
512    checkpoint55c_post
513    o obcs stuff
514      - new runtime flags useOBCSprescribe, useOBCSbalance
515      - re-arranged obcs_calc
516      - moved exf_getobcs to obcs_prescibe_read
517        obcs_prescibe_read is called after ORLANSKI stuff
518        and independent of it (executable can contain all).
519      - updated obcs_check
520      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
521        These may be necessary only if tangential velocities are
522        prescribed at OB, not sure, needs testing.
523    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
524      which simplifies the calls and passes the ifc check-bounds test
525    
526    checkpoint55b_post
527    o add a 2D scalar, Z location, exchange_2 routine.
528    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
529      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
530      affects advect_cs results (for the wrong reason): update output.txt
531    o use a more standard discretization for biharmonic viscosity ;
532     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
533      affects results of dome set-up: update output.txt
534    o fix gad_advection.F (CubedSphere part), back to version 1.23
535    o fix bug in mom_vi_del2uv.F (CubedSphere part).
536    
537    checkpoint55a_post
538    o merged code to
539      * prescribe/read time-dependent open boundaries
540        (works in conjunction with exf, cal)
541      * sponge layer code for open boundaries
542      * each boundary N/S/E/W now has its own CPP option
543        (healthy for the adjoint)
544    
545    checkpoint55
546    o up-to-date adjoint of previous breaks
547      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
548      - global_ocean_ebm: adjoint still needs fix (TLM ok)
549      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
550      - carbon: * remove tr1-related adjoint verification
551                * add ptracer as control variable
552    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
553      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
554    
555    checkpoint54f_post
556    o in verification/carbin/ remove experiment related to
557      ALLOW_PASSIVE_TRACER (array tr1 etc)
558      code_ad/ input_ad/ results_ad
559    
560    o add two new packages
561      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
562        + subject to optimization (memory)
563      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
564        + subject to reordering (many GOTOs in the original code)
565        + so far opps is called for every (i,j) point, and then operates in
566          the vertical; one may want to reorder the scheme in order operate in
567          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
568          fields)
569    o overhaul of IO so that we now have flags for MDSIO and/or MNC
570      - all verification tests compile and run with linux_ia32_g77
571      - defaults are compatible with current input files--nothing
572        should change if you were not previously using MNC
573      - MNC output has been added in numerous places (eg. timeave)
574        but there are still a few writes not yet do-able with MNC
575        (this is in progress)
576      - flags now allow for either/or/both use of MDSIO and MNC and
577        documentation will soon follow
578      - numerous small formatting cleanups for ProTeX
579    o add version info (via BUILD_INFO.h) to MNC and stdout
580    
581    checkpoint54e_post
582    o add two new packages
583      - pp81 (Packanowski and Philander, 1981), Richardson number and
584        stratification dependent mixing
585      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
586      - these scheme operate in a similar manner as KPP (without ghat, of
587        course), however there is only one diffusivity that is used for both
588        temperature and salinity (and passive tracers)ç
589    o add offline package
590    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
591      provided by Stephanie Dutkiewicz
592    o genmake2: add ability to search for C compilers and cleanup test output
593      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
594    
595    checkpoint54d_post
596    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
597    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
598      leading to additional shift by 5 days each year of integration
599       (i.e. leading to considerable offset over the years)
600    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
601    o start with no AB and no initial filtering (staggerTimeStep):
602      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
603    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
604      (external loading & cpl import/export stay in forward_step.F)
605    o update coupling interface to work with new staggerTimeStep
606    o change MDSIO ptracers_pickup.
607    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
608    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
609    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
610    
611    checkpoint54c_post
612    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
613      this affects (truncation error) output.txt of test-exp:
614       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
615    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
616    o change Qnet to always be the net heat flux, (+upward).
617      affects (truncation error) output of natl_box exp.: updated
618    o define the max number of passive tracers in PTRACERS_SIZE.h
619    o start to test mnc routinely in exp0
620    o add sea-ice loading (sIceLoad) as a new forcing field.
621    
622    checkpoint54b_post
623    o add testreport "-j JOBS" option for parallel builds (tested and pretty
624       impressive on Altix and Opteron systems)
625    o diagnostics can now write NetCDF files through the mnc package
626    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
627    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
628    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
629      affects (truncation error) output of lab_sea & natl_box exp.: updated
630    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
631    
632    checkpoint54a_post
633    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
634    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
635    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
636    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
637      + internal_wave (shift in writing cg2d_ini_res)
638    checkpoint54a_pre
639    
640    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
641      - modified verification/lab_sea and natl_box_adjoint accordingly
642    
643    checkpoint54
644    checkpoint53g_post
645    o prepare splitting of thermodynamics: store convect.counter in common block
646    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
647      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
648    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
649    o new parameter "nShapS": allow to treat differently S from T (nShapT)
650    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
651    o restore adjointability
652    
653    checkpoint53f_post
654    o modifications that affect AIM experiment results (update output.txt):
655      - no advection of S at top interface Nr (pkg/generic_advdiff)
656      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
657    o AIM pkg:
658      - include stability function into surf.Flux derivative relative to Tsurf
659      - calculate clear-sky radiation & surface temp. change (for diagnostics)
660    
661    checkpoint53e_post
662    o merged cylindrical coord configuration
663    o added rotating_tank experiment
664    checkpoint53e_pre
665    
666    checkpoint53d_post
667    o faulks upgraded: re-generate output.txt that have changed:
668       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
669    o Added Bryan and Lewis, 1979, vertical diffusivity profile
670    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
671    o added Sadourny discretization of Coriolis
672      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
673      - re-enabled use of omega3 (useAbsVorticity)
674    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
675      vector-invariant equations
676      - note: does *NOT* yet use same variable visc. for no-slip BC's.
677    o recoded the lateral boundary conditions for non-hydrostatic w, this time
678      hopefully without new bugs
679      - still to do: biharmonic friction for non-hydrostatic w
680    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
681    o regenerated output for global_ocean_ebm (using -ieee)
682    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
683      of mom_common/
684      - simple re-arrangement of instructions within computing loop
685    checkpoint53d_pre
686    
687    checkpoint53c_post
688    o new version of coupler for AIM+thSIce and Ocean models
689     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
690     - land: change Evaporation of snow
691     - aim with thSIce: fix bug in snow-precip.
692    o changes to calc_gw.F
693     - bug fix for w^2 term near the bottom boundary
694     - (hopefully) improve the lateral slip boundary condtions for use with
695        partial/looped cells
696      - because the bug fix changes two verification experiments anyway (exp5
697        and plume on slope), change the lateral boundary condition from half slip
698        to the value of no_slip_sides
699    o ebm package wasnt quite up to the parallel task. Fixed that.
700    o Adjoint of EBM package + verification
701      * TLM OK
702      * ADM not sufficient accuracy yet (needs further testing)
703    
704    checkpoint53b_post
705    o Commiting new energy balance model to repository
706      * package is pkg/ebm
707      * verif. is verification/global_ocean_ebm
708      * references are in ebm_driver.F
709    C      * X. Wang, P. Stone and J. Marotzke, 1999:
710    C        Global thermohaline circulation. Part I:
711    C        Sensitivity to atmospheric moisture transport.
712    C        J. Climate 12(1), 71-82
713    C      * X. Wang, P. Stone and J. Marotzke, 1999:
714    C        Global thermohaline circulation. Part II:
715    C        Sensitivity with interactive transport.
716    C        J. Climate 12(1), 83-91
717    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
718    C        Destabilization of the thermohaline circulation
719    C        by atmospheric eddy transports.
720    C        J. Climate 7(12), 1870-1882
721    o Will need long integration testing.
722    checkpoint53b_pre
723    
724    o created pkg/mom_common in preparation for variable viscosity code
725    o renamed and split ini_mnc_io
726    o pkg/land: only liquid water can diffuse or run-off
727    o AIM using land: soil wetness availability account for snow
728    o added printMapIncludesZeros to EEPARMS namelist
729    
730    checkpoint53a_post
731    o restore TAMC compatiility for exf_constants.h
732      (no usage of _d in .h)
733    o Additional storing in KPP in an attempt to fix
734      TAMC problem with adjoint of KPP code.
735      (no success...)
736      Identical code works fine with TAF.
737    o Fixed verification/natl_box_adjoint experiments.
738      Initial conditions for Experiments 4 and 5 are now
739      set to "SEAICE_initialHEFF=0", which is more reasonable,
740      and hence gives results closer to that of Experiment 2.
741      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
742    
743    checkpoint53
744    o stable checkpoint with up to date adjoint
745      TLM tests only run for 1st grdchk at the moment. Its unclear if
746      this is a code problem or a problem with resetting code for g_
747      variables that is being autogenerated wrong.
748      Otherwise:
749       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
750       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
751         are both still in chaos following their security messes.
752    
753    checkpoint52n_post
754    o various build (mostly genmake2) changes including:
755      - ability to build/run more easily within Cygwin and MacOS X
756      - more complicated Makefiles with a stronger dependence on Gnu Make
757    o pkg/seaice modifications
758      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
759        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
760        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
761      - changed proxy for geostrophic velocity and updated
762        verification/lab_sea/results/* accordingly
763      - removed ADI dynamic solver from pkg/seaice
764      - replaced all occurrences of 1/CSTICE or 1/CSUICE
765        they caused a segmentation fault under certain circumstances
766      - removed unused field WATR
767    o bug fix in exf-package:
768      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
769         now reflect that.
770    o small fixes in the cal-package:
771      - set reference date to first of January for the 'model'-calendar
772      - failing of cal_CheckDate in cal_FullDate now actually results in a
773        warning
774    o small modifications in exf-package to increase flexibility:
775      - change climtempfreeze from a constant to a runtime parameter that
776        is specified in data.exf_clim (default = -1.9)
777      - introduce runtime parameter windstressmax (default = 2.0) that is
778        specified in data.exf
779    o fix in pkg/thsice:
780      - update Evap (Tsf changes) to be consistent with Latent heat flux
781      - maintain snow precipitation unchanged (even if Tsf >=0).
782     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
783    
784    checkpoint52m_post
785    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
786      this does not change any of the results, because myIter=0 in swfrac always
787      lead to jwtype=2 (the default anyway), but the call makes little sense
788      as a default
789    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
790    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
791      atmospheric model (AIM) to use it ; add a "slab ocean" component.
792    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
793    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
794    o extending useSingleCpuIO option to work with new exch2 I/O format
795      - old-style, missing-tile I/O is still accessible by defining CPP
796        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
797    o monitor package can write to NetCDF files and/or STDOUT
798    o fix re-definition bug in MNC_GRID_INIT_ALL()
799    o doc/api_reference added
800      - a framework for building an API Reference Manual using all
801        the "protex" comments embedded in the code
802      - see pkg/generic_advdiff, pkg/mnc for examples
803    o MNC:
804      - make myThid the last argument for all subroutines
805      - new default for the grid files: NO halos
806      - add useMNC and other run-time flags
807      - separate per-file-group handling of the unlimited dimension
808      - early initialization of MNC w/ flags read at the eeboot stage
809        and lookup tables set in initialize_fixed
810      - write all MNC output to a freshly-created directory
811    o thermodynamics sea-ice (thsice) is now tested with testreport.
812    o test exp. advect_cs: use the standard cs32 grid ; update output.
813    o Added functionality to grdchk:
814      pick global i,j,k position (or nearest wet) where to perform check.
815    
816    checkpoint52l_post
817    o new land formulation:
818      a) use ground enthalpy as prognostic variable to ensure exact
819         energy conservation.
820      b) account for water temperature and for latent heat of freezing
821         in all processes (rain, run-off, ground storage)
822      c) compute surface and ground temperature implicitly.
823    o aim_v23 modification for new land model:
824      a) Treat separately land / ocean / sea-ice surface fluxes
825         to allow implicit computation of land & sea-ice surface temp.
826      b) add snow precipitation.
827    checkpoint52l_pre
828    
829    o fix problem (when 1 tile is empty) in min/max monitor.
830    o fix bug in timeAve (u,vZetatave in common block)
831    o no restoring terms under ice for pkg/seaice
832    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
833    o bug fix for pkg/seaice pickups
834    o change MNC call locations and add coordinate attributes
835    o mask vorticity at the corner ; affects global_ocean.cs output
836    o fix ini_curvilinear_grid ; test CS experiments with mpi
837    o aim.5l_cs: modify sea-ice fraction input file ; update output
838    o exf: Adding simple range check routine for exf fields after read
839    
840    checkpoint52k_post
841    o removed top-level directory "diags"
842      - we migrated these functions to pkg/timeave a long time ago
843    o fixed bug introduced in pkg/monitor
844    o accuracy ctrlprec = 32 insuffient for gradient checks using
845      averaged fields (I/O via cost_averages)
846      -> use ctrl.h in active_file*.F to control I/O precision.
847    o paramter list of CALL ADTHE_MAIN_LOOP
848    o added initial do_the_model_io to ecco
849    o set all ...Freq to zero after cost_final
850      taveFreq, dumpFreq, pChkptFreq
851    o MAIN and ECCO differentiability restored
852    
853    checkpoint52j_post
854    o fix nchklev in tamc.h for global_ocean...
855    o Bringing flow and store directives up-to-date
856    o Really weird thing!
857      call do_the_model_io from the_main_loop with parameters
858      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
859      TAF places a faulty re-call of initialise_varia
860      after cost_final call which should not be there!
861    checkpoint52j_pre
862    
863    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
864      error messages
865    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
866    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
867      debug output
868    o modfied mdsio_writefield.F to handle non-global files under exch2
869    o update AIM Cubed-Sphere exp (aim.5l_cs):
870      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
871    o update AIM Equatorial Channel exp:
872      use standard aim_v23 pkg and change the SST fields to be more realistic.
873    o globalFile now works with exch2
874    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
875      mon_vort3.F to make exch2 friendly with >1 tile per cube face
876    o limit timeave output for hi-res integrations
877    
878    checkpoint52i_post
879    o removed CPP_EEOPTIONS.h from verification/*/code
880    o updated the tiling for global_ocean_pressure
881    checkpoint52i_pre
882    
883    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
884      the old pkg/aim).
885    
886    checkpoint52h_pre
887    o shortened offending lines in exch2_send_rx?.template
888    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
889    o genmake2: add build & execute test for NetCDF code
890    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
891      old grid files, moved CPP_EEMACROS.h to pkg/exch2
892    o added useSingleCPUIO flag to monitor.F and mon_out.F
893    o added temporary hack for sea-ice dynamics on the cube:
894      metric terms are ignored and it is assumed that
895      there is no sea-ice on cube faces 1, 2, 4, and 5.
896    
897    checkpoint52f_post
898    o added exch2 cube routines to pkg/exch2
899    o modified hs94.cs-32x32x5 to use it
900    o added new grid files to hs94.cs-32x32x5
901    checkpoint52f_pre
902    
903    checkpoint52e_post
904    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
905      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
906    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
907      to work with implicit vertical advection and AB ;
908    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
909    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
910     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
911    checkpoint52e_pre
912    
913    o fix bug in impldiff when Nr=1 or Nr=2.
914    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
915    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
916    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
917      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
918    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
919    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
920    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
921    
922    checkpoint52d_post
923    o re-tiled many expts to allow comparison in multi-processor mode
924      - updated output accordingly
925      - changed hs94.128x64x5 to use intial T from file rather than use the
926        random number generator
927    o add infrastructure in model routines for fizhi and gridalt packages
928    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
929    o changes to permit hi-res, cubed-sphere, configuration
930      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
931      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
932      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
933        of surface winds for the cube
934      (A verification experiment, based on global_ocean.cs32x15, but with
935       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
936       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
937       complete with example surface forcing files and matlab scripts to look
938       at the output and compare it with that of global_ocean.cs32x15.)
939    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
940       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
941       to conform to the common rule.
942    o check-in the first version of the coupler + interfaces for multi-components
943       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
944       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
945       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
946       - ocean and atmos. share the same horizontal grid (no interpolation).
947       - exchanges between component and coupler is done in forward_step
948    o new verification experiment, cpl_aim+ocn:
949       coupled ocean - AIM atmosphere on cs32 grid.
950    
951    checkpoint52d_pre
952    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
953    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
954    
955    checkpoint52c_post
956    o Fixing OPTIONS files for use of exf:
957      - ALLOW_ECCO not needed
958      - ECCO_CPPOPTIONS.h should not be included from
959        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
960        as has been the case in the past
961      - All cal/exf related options are currently set in
962        single header file. Should remain so until we
963        agree on a consistent new policy.
964    o Removed all CPP options for cal package.
965      cal has no more CPP options.
966    o modified STOREs in GAD_ADVECTION
967    o corrected key comp. for passkey
968    
969    checkpoint52b_post
970    o new version: "thsice" of thermodynamic sea-ice pkg:
971     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
972     - modify fluxes but do not change theta directly;
973     - light cleaning of bulk_force pkg (still needed with thsice).
974     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
975       + output_thsice.txt to test thsice & bulk_force pkgs.
976    o put back grid & coriolis monitor output.
977    checkpoint52b_pre
978    
979    o call "do_the_model_io" at the beginning (=> dump initial state)
980    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
981    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
982      (need info on NUMBER_OF_PTRACERS)
983    o missing PTRACERS headers in some routines
984    o default tamc.h in pkg/autodiff supposed to crash
985      to ensure proper customization
986    
987    checkpoint52a_post
988    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
989      - moved surfaceTendencyTice from pkg/seaice to main code
990      - subroutine FREEZE_SURFACE now limits only surface temperature
991        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
992        => new output.txt for global_ocean.cs32x15 & global_with_exf
993      - keep the old version of FREEZE for backward compatibility;
994        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
995      - corresponding modifs for TAF directives
996    o added surface flux output variables to TIMEAVE_STATVARS
997    o time-averaged output for pkg/ptracers
998    o fix problem with ECCO-related divided adjoint
999      snapshot file was missing some ad-variables,
1000      but no warning issued by TAF
1001    
1002    checkpoint52a_pre
1003    o some bug fixes for #undef REAL4_IS_SLOW
1004    
1005    checkpoint52 = ecco_c52_e35
1006    o after testing adjoints of checkpoint51u_post
1007    
1008    checkpoint51u_post
1009    o this is the post-merge tag of the ecco-branch
1010      (needs another clean checkout and re-testing)
1011    o various natl_box_adjoint configs and results
1012      but no input fields
1013    o obcs adjoint not yet merged!
1014    o adding ECCO global 1x1 and 2x2 degree configs
1015    o updated/extended some store directives for seaice
1016    o pkg/ecco now containes ecco-specific part of cost function
1017    o top level routines the_main_loop, forward_step
1018      supersede those in model/src/
1019      previous input data.cost now in data.ecco
1020      (new namelist ecco_cost_nml)
1021    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1022    
1023    checkpoint51t_post
1024    o this is the pre-merge tag of the ecco-branch
1025    
1026    checkpoint51s_post
1027    o cleanup: removed various obsolete #define-s
1028    o pkg/grdchk
1029      - renamed 'ph-grd 3' to 'grad-res'
1030      - merged from ecco-branch
1031        (remaining bug fixes for obcs gradient checks)
1032      - additional high-precision output for testreport
1033        (grep for 'precision_grdchk_result')
1034    
1035    checkpoint51r_post
1036    o cleaned up or removed CPP_OPTIONS.h files
1037    o updated results for some of the tests to reflect the new
1038      optfiles (-ieee: -O0 instead of -O3)
1039    
1040    checkpoint51q_post
1041    o cd_code:
1042      - moved cd_scheme.F -> cd_code_scheme.F
1043      - separate read_checkpoint from cd_code_ini_vars.F
1044      - separated cd_code part from write_checkpoint
1045      - updated AD_SOURCE, generated .flow
1046      - added CD_CODE_VARS.h to the_main_loop
1047      - Moving cd_code specific store dir.s to pkg/cd_code
1048    o ctrl package totally restructured
1049      - pack/unpack now optional and decoupled from
1050        xx_/adxx_ I/O
1051      - ctrl_pack/unpack cleaned
1052        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1053      - confined inclusion of AD_CONFIG.h to where necessary.
1054    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1055    
1056    checkpoint51p_post
1057    o create initial cd_code package
1058      - WARNING: the initialization of fields within packages
1059        is broken because INI_FIELDS (where READ_CHECKPOINT is
1060        called) is called *before* PACKAGES_INIT_VARIABLES.
1061        This seems to be backwards since
1062        1) its important to initially zero the entire field including
1063           the "halo" region
1064        2) zeroing needs to be done *before* reading pickup info
1065           and the pickup call might or might not happen in any
1066           particular run
1067      - this needs an overhaul for R2
1068    o cleanup verification/*/code/GMREDI_OPTIONS.h
1069    o cleanup testreport
1070    
1071    checkpoint51o_post
1072    o bringing AD-related verif's up to date with genmake2
1073      - carbon/
1074      - global_ocean.90x40x15/
1075      - hs.94.1x64x5/
1076      - (front_relax/ )
1077    o (more) consistent directory structure for AD-related verif.'s
1078    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1079    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1080    o bug fix in find_alpha.F for MDJWF:
1081      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1082        change rho -> rho-rhoConst
1083      - replace call find_rho to find_rhonum
1084    o initialisation of rFlx extended to full array (required by TAF)
1085      and shifted to thermodynamics
1086    o removed PTRACERS.h in ptracers routine
1087    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1088    o Correcting initialisations for fVerU, fVerV.
1089    o helping TAF to recognize dependency on kUp for
1090      fVerU, fVerV
1091    o Replacing delZ by delR in pkg/ctrl/
1092    checkpoint51o_pre
1093    
1094    o undid all of cp51 pending some cleanups and discussion
1095    o added the [#include "AD_CONFIG.h"] statement to all files that need
1096       it for adjoint/tl #defines
1097     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1098     o removed tools/genmake since it no longer works
1099    
1100    checkpoint51n_post
1101    o modifications to make FREEZE flux visible to pkg/kpp
1102      - moved surfaceTendencyTice from pkg/seaice to main code
1103      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1104      - subroutine FREEZE now limits only surface temperature
1105        (this means new output.txt for global_ocean.90x40x15,
1106         global_ocean.cs32x15, and global_with_exf)
1107    o added surface flux output variables to TIMEAVE_STATVARS
1108    
1109    checkpoint51n_pre
1110    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1111    o added [#include "AD_CONFIG.h"] to all files that use the following
1112      defines:
1113      - ALLOW_ADJOINT_RUN
1114      - ALLOW_TANGENTLINEAR_RUN
1115      - ALLOW_ECCO_OPTIMIZATION
1116    
1117    checkpoint51m_post
1118    o incorporating changes to get TAMC/TAF working in genmake2
1119      - added new TAMC/TAF targets to the Makefile
1120      - various cleanups related to package handling
1121      - these changes should have no impact on the forward model
1122    
1123    checkpoint51l_post
1124    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1125     - faster algorithm for cal_addtime.F
1126     - higher precision arithmetic, where needed
1127     - pkg/exf *startdate variables changed from calendar date to
1128       model integration time
1129    
1130    checkpoint51l_pre
1131    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1132    o enable to apply restoring on S & T only in a latitude band.
1133    o update output (external_forcing_surf modif. change truncation errors)
1134       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1135    
1136    checkpoint51k_post
1137    o change default to: useNHMTerms=.FALSE.
1138     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1139       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1140     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1141        exp1, ideal_2D_oce
1142     - change data file of oceanic exp (leave the results unchanged for now)
1143       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1144    o set gravitySign automatically according to the vertical coordinate used
1145      (and change sign: back to "logical" value: +1 when R increases downward)
1146    o added an include barrier to the default CPP_OPTIONS.h and
1147      removed the #include "PACKAGES_CONFIG.h" from it
1148    o fix a bug in mom_fluxform (from chk51j_post)
1149    
1150    checkpoint51j_post
1151    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1152    o adjusted some flow directives (dynamics, thermodynamics)
1153    o added cubed-sphere case to test cost function
1154    o heckpoint_lev?_directives.h now include
1155      pkg-specific directives, whenever those are enabled.
1156    o Moving pkg-specific flow directives to corresponding pkg
1157      Moving pkg-specific differentiation list to corresponding pkg
1158      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1159      ---> conventions are
1160           - pkg_ad.flow
1161           - pkg_ad_diff.list
1162           - pkg_ad_check_lev?_dir.h
1163    
1164    checkpoint51i_post
1165    o merge of the branch-genmake2
1166      - knowingly breaks the older genmake
1167      - automatic generation of all ALLOW_${PKG_NAME} defines
1168      - new testreport supersedes older testscript
1169    o large number of package inclusion and header cleanups
1170    checkpoint51i_pre
1171    
1172    o new output for adjoin of global ocean vector invariant
1173    o fix for checkpoint of thermodynamic seaice and bulk_force
1174    o Steph gchem various cleanups
1175    
1176    checkpoint 51h_pre
1177    o fixed some single quotes
1178    o modify gchem pkg to be more versatile
1179    o modifications to clean up dic pkg
1180    o add pkg/cfc
1181    
1182    checkpoint51g_post
1183    o provide links for ARPACK and ADM*TLM
1184    o start removing verification/vero/
1185    o update AD-related stuff
1186      (in particular some IF-statements in model/src/ routines)
1187    o adding to verification/global_ocean.90x40x15/ adjoint of
1188      vector invariant setup
1189    
1190    checkpoint51f_post
1191    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1192    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1193      of tracer Green's fucntions for ocean inversion project.
1194    
1195    checkpoint51f_pre
1196    o Added on-the-fly spatial interpolation capability
1197        "USE_EXF_INTERPOLATION" to pkg/exf.
1198      - This is a temporary Cartesian-grid hack until
1199        the super-duper ESMF coupler becomes available.
1200      - See verification/global_with_exf/README for usage example.
1201      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1202        flags and modified pkg/seaice accordingly.
1203    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1204        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1205        non-local transport term.
1206    
1207    checkpoint51e_post
1208    o pkg/mom_vecinv:
1209      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1210      - add time-ave diagnostic of vorticity advection.
1211    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1212    o atmospheric geopotential: - include water vapor effect;
1213                                - use p^kappa in p* scaling.
1214    o land pkg: read initial state from files.
1215    o AIM : add stratospheric drag in the upper level
1216    
1217    checkpoint51d_post
1218    o change function ILNBLNK (=> last non-blank char.) to return zero
1219      (instead of the string length) when the string. char is empty
1220    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1221    o modif's to restore TAMC compatibility
1222      - avoid "_d" constructs in PARAMETER declarations
1223      - avoid interrupting lines by comment lines
1224    o Use cluster local disks for purely local I/O
1225      vs. globally visible disks needed for ctrl stuff
1226      (merged from ecco-branch)
1227      - new active_file_loc... and mdsio_..._loc routines
1228      - affected packages: autodiff, ctrl, grdchk, mdsio
1229    
1230    checkpoint51c_post
1231    o introducing integer flag debugLevel
1232      - debLevZero: suppress all output
1233      - debLevA: standard
1234      - debLevB: equivalent to current debugMode=.TRUE.
1235    o introducing pathname variable mdsioLocalDir for mdsio
1236      that can be specified at runtime
1237      (relevant for cluster I/O to local disk)
1238    `
1239    >>>checkpoint51b_post
1240    adjoint of ptracers
1241    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1242    o extended state in checkpoint_lev?, etc.
1243    o alternative ctrl/cost with tr1 or ptracer
1244    o new comlev1_bibj_ptracers
1245    o new ptracers.flow
1246    o made ptracers_forcing same as external_forcing_s
1247    o added verification for adjoint with ptracers
1248      - adm. grdchk fail so far
1249      - tlm. grdchk OK
1250      - checked tapelev/comlev recomputations: OK
1251    <<<checkpoint51b_pre
1252    
1253    checkpoint51a_post
1254    o added code for biogeochemistry package
1255      - new pkgs: dic, gchem
1256      - new subroutine in ptracers
1257    o modify code for biogeo packages
1258      - in model/src and pkg/ptracers
1259    
1260    checkpoint51
1261    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1262      - autodiff, ctrl, exf, grdchk, seaice
1263      kept separate packages
1264      - cost, ecco, obcs
1265    o updating verification/internal_wave, verification/lab_sea
1266      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1267    
1268    checkpoint50i_post
1269    o Preparing next differentiable checkpoint and sync
1270      of MAIN vs. ecco-branch
1271      - 1st step: this one is differentiable
1272      - 2nd step: next(! not this) checkpoint will have updated packages
1273                  from ecco-branch)
1274    
1275    checkpoint50h_post
1276    o new package "land": provide surface BC for AIM.
1277    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1278    o AIM: use true log-P extrapolation for near surface temp (= as in
1279        F.Molteni paper) ; update aim.5l_cs output.
1280    o New variable in PARM03 for more flexible pickups
1281    o somewhat cleaned package initialisation sequence for
1282      ctrl/ cost/ ecco/ in packages_... routines
1283    
1284    checkpoint50g_post
1285    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1286      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1287      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1288        made the default because of faster convergence than ADI
1289    
1290    checkpoint50f_post
1291    o exf totally restructured
1292      - replaced all exf_set_ routines by one generic exf_set_gen.F
1293        and made sure it's still differentiable
1294      - split exf_getffields.F into new exf_bulkformulae.F
1295      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1296      - updated adjoint/makefile and relevant verif. accordingly
1297    
1298    checkpoint50f_pre
1299     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1300          + change Evap over land. (update aim.5l_cs output)
1301     o added missing .cvsignores and made uniform across expts
1302     o changed configuration of tidal_basin_2d expt
1303     o added pkg/debug functions for tracing code in fatal crashes
1304     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1305     o new fn in pkg/monitor to stop model if solution grows too big
1306     o removed lots of single quotes from comments
1307    
1308    checkpoint50e_post
1309    o make KPP work with PTRACERS
1310     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1311       nearly a copy of kpp_transport_s
1312     - there is no analogue to SurfaceTendencyS, so I have to use
1313       gPtr(of the surface layer) instead
1314    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1315    checkpoint50e_pre
1316    
1317    checkpoint50d_post
1318    o change kpp output from multiple-record state files to single-record state
1319      files analogous to write_state.F
1320    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1321      analogous to the cg2d-related output.
1322    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1323      so that writing to internal file fn (with length 512) fails.
1324    checkpoint50d_pre
1325    
1326    checkpoint50c_post
1327    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1328    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1329    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1330    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1331    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1332    
1333    checkpoint50c_pre
1334    Merging from release1_p13:
1335    o bug fix for pkg/seaice dynamic solver
1336    o Added SEAICE_initialHEFF to pkg/seaice
1337    
1338    checkpoint50b_post
1339    o store u*,v* in gU,V instead of in guNm1,gvNm1
1340    o in order to put the momForcing out of the Adams-Bashforth:
1341      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1342      to timestep.F
1343    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1344    o re-generate output for highly sensitive test-exp:
1345       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1346    
1347    checkpoint50b_pre
1348    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1349    o corrected CPP option mismatch in exf_Bulk... functions for case
1350      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1351    
1352    checkpoint50a_post
1353    o Bug fix for merging between c50 and KPP.
1354      ikey was passed from thermodynamics to kpp_calc via
1355      common block rather than being recomputed in kpp_calc,
1356      in contradiction with new key itdkey.
1357      New key ikppkey created, and tamc.h headers updated.
1358    
1359    checkpoint50
1360    - 2nd step of merge with ecco-branch:
1361      merge changes in ecco-branch back into main trunk
1362    - bug fix in find_alpha
1363    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1364    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1365    - merged some sliced AD support routines
1366    
1367    checkpoint49
1368    merged from ecco-branch:
1369    o exf:
1370      - Enable initialisation of forcing fields to constant
1371        (runtime) values.
1372      - in exf_getffields.F
1373        Reduce i-/j-loop to interior domain, discarding overlaps.
1374        That also fixes wrong TAF-key computations for key_1, key_2
1375        with bulf formulae.
1376      - exf_init.F modify #ifdef for exf_init_evap
1377      - exf_getffieldrec.F, ctrl_getrec.F
1378        The following INT-usages are not safe:
1379          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1380          fldcount = int(fldsecs/fldperiod) + 1
1381        and were modified.
1382    o autodiff: checkpoint_lev...
1383      - updated storing for bulk formulae (some arrays were missing)
1384      - added state for seaice package
1385      - synchronized with main branch
1386    o DIVA:
1387      Modif.s in
1388      - the_main_loop.F
1389      - the_model_main.F
1390      and added cost_final_restore.F cost_final_store.F
1391      o With these changes, it is possible to fully separate
1392        the first forward run to compute the cost function (mdthe_main_loop)
1393        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1394        into separate model executions.
1395        This enables better tuning of DIVA to given queue sizes.
1396      o Loss of cost function value in consecutive DIVA runs is
1397        fixed by storing to 'costfinal' file.
1398      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1399        beginning/end of adjoint integration is accounted for.
1400      The current changes apply to TAF-1.4.26.
1401      TAF has one remaining bug, requiring one manual change
1402      (see MITgcm manual).
1403    o cal: synchronized between MAIN and ecco-branch
1404    
1405    checkpoint48i_post
1406    o Changes to restore differentiability of code w.r.t. previous tag
1407      (mostly adding new routines to make list and replacing
1408      pressure by totPhiHyd).
1409    o Updated and merged grdchk package
1410      - has both ADM and TLM checks
1411      - works for single- and multi-proc.
1412      - output cleaned
1413      - worked successfully for parallel DIVA
1414    o genmake:
1415      - Adding -platform=SP4
1416      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1417    o Modif. for DIVA:
1418      ctrl_unpack should not be called in intermediate DIVA interval.
1419      (similar thing would apply for active files such as
1420      tbar, sbar, psbar, which should not be reinitialised;
1421      only relevant for ecco-branch)
1422    
1423    checkpoint48h_post
1424    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1425    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1426    o Added SEAICE_initialHEFF to pkg/seaice
1427    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1428    
1429    checkpoint48g_post
1430    --- EOS:
1431    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1432      store total Potential in totPhyHyd for diagnostics & EOS.
1433    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1434    --- Pressure/geopotential gradient:
1435    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1436    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1437      ( changes results of global_ocean_pressure )
1438    o NLFS + z-coord.: add eta*Rho' contribution.
1439    o accurate phiHyd when using interface-W at the middle between 2 centers
1440     ( changes results of ideal_2D_oce )
1441    o includes r* 2nd term in potential gradient.
1442    
1443    checkpoint48f_post
1444    Merging from release1_p12:
1445    o Modifications for using pkg/exf with pkg/seaice
1446      - improved description of the various forcing configurations
1447      - added basic radiation bulk formulae to pkg/exf
1448      - units/sign fix for evap computation in exf_getffields.F
1449      - updated verification/global_with_exf/results/output.txt
1450    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1451      (SBO) core products, including oceanic mass, center-of-mass,
1452      angular, and bottom pressure (see pkg/sbo/README.sbo).
1453    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1454      to avoid negative values in shallow regions.
1455      - updated verification/natl_box/results/output.txt
1456      - updated verification/lab_sea/results/output.txt
1457    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1458    o Added useSingleCpuIO option (see PARAMS.h).
1459    o Updated useSingleCpuIO option in mdsio_writefield.F to
1460      work with multi-field files, e.g., for single-file pickup.
1461    o pkg/seaice:
1462      - bug fix in growth.F: QNET for no shortwave case
1463      - added HeffFile for specifying initial sea-ice thickness
1464      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1465    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1466      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1467    o pkg/seaice:
1468      - adjoint-friendly modifications
1469      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1470    
1471    checkpoint48e_post
1472    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1473    o dynamics: change definition of computational domain & adapt mom_fluxform
1474      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1475    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1476        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1477        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1478        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1479        inverted_barometer solid-body.cs-32x32x1
1480      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1481    
1482    checkpoint48d_post
1483    o in preparation for r*:
1484     a) use pre-computed gradient of hydrostatic potential:
1485        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1486     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1487        => affects results of glob_oce_pressure (different truncation error)  
1488      update output.txt of ideal_2D_oce & global_ocean_pressure
1489    
1490    checkpoint48d_pre
1491    o in preparation for r*:
1492      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1493      pass the 2 comp. of the grad. as arguments to momentum S/R.
1494      but for the moment, only used if it does not change the results.
1495    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1496    
1497    checkpoint48c_post
1498    Modifications in treatment of initial flux forcing controls
1499    to avoid extra storing of flux fields.
1500    
1501    checkpoint48c_pre
1502    o Added tidal_basin_2d experiment (currently 1D!)
1503    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1504    
1505    checkpoint48b_post
1506    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1507     (modification to pressure gradient not yet implemented)
1508    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1509      (for U & V) that are used for vertical advection of momentum.
1510    
1511    checkpoint48a_post
1512    o In preparation for r*, use temp. array to compute vertical transport
1513       in flux-form momentum pkg. => change results of few test-exp.
1514      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1515                        lab_sea, natl_box & plume_on_slope
1516    
1517    checkpoint48
1518    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1519    
1520    checkpoint47j_post
1521    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1522    o moved adexch from forward_step to addummy_in_stepping
1523    o added exch in ctrl_map_...
1524    o aveFreq.=0. at end of cost_final to avoid overwrite in
1525      reverse checkpointing loop
1526    o Yet more changes in gmredi:
1527      * adgmredi_calc_tensor
1528        avoiding all recomputation of gmredi_slope_limit
1529      * adgmredi_x/y/rtransport
1530        added flag for excessive storing to avoid recomp. of
1531        u/v/rtans, dTdx/y/z
1532        -> this is not really necessary and very memory-consuming
1533      * adgmredi_slope_psi:
1534        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1535      * gmredi_slope_limit
1536        re-activated full calculation of taperfct for case 'ac02'
1537    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1538    
1539    checkpoint47i_post
1540    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1541    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1542      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1543    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1544    o gmredi: fix few bugs.
1545    
1546    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1547    This will be a good checkpoint to plug into the ecco-branch.
1548    o few modif.'s to get latest version adjointed
1549      (mainly kick out code in ini_linear_phisurf)
1550    o modif's to run adjoint with exactConserv
1551    o case GM_BOLUS_ADVEC should be cleaned
1552      S/R gmredi_slope_psi should be cleaned
1553    o verification/carbon now has exactConserv=.TRUE.
1554    
1555    checkpoint47g_post
1556    o time-average AIM output: becomes independent from statvars time-average
1557      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1558    o After TAF bug fix:
1559      Tested adjoint of gmredi package.
1560      Tests were done with checkpoint47 rather than with latest
1561      checkpoint47f_post since the latter is broken for the adjoint
1562      verification/carbon/ contains both ADM and TLM gradient checks.
1563    Here they are, before they get changed/lost/stolen.
1564    Mostly modif.'s to fix numerical sensitivities.
1565    Gradient checks OK for
1566    - GM_taper_scheme:
1567      * clipping
1568      * ac02
1569      * linear
1570      * glw91
1571      * dm95
1572      * ldd97
1573    - GMREDI_OPTIONS:
1574      * GM_VISBECK_VARIABLE_K
1575      * GM_NON_UNITY_DIAGONAL
1576      * GM_EXTRA_DIAGONAL
1577      * GM_BOLUS_ADVEC
1578    in conjunction with data.gmredi parameters to be checked in
1579    in a few minutes under verification/carbon/code/
1580    
1581    checkpoint47f_post
1582    Merging from release1_p10:
1583    o modifications for using pkg/exf with pkg/seaice
1584      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1585        and SEAICE_EXTERNAL_FLUXES
1586      - pkg/exf CPP options EXF_READ_EVAP and
1587        EXF_NO_BULK_COMPUTATIONS
1588      - usage examples are Experiments 8 and 9 in
1589        verification/lab_sea/README
1590      - verification/lab_sea default experiment now uses
1591        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1592    
1593    checkpoint47e_post
1594    o created a tag prior to creating a branch
1595    
1596    checkpoint47d_post
1597    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1598      at the bottom boundary had an erroneous half slip boundary condition
1599    o added bottom drag and no slip boundary condition capabilities to
1600      oceanic pressure coordinates code
1601    o added new verification experiment global_ocean_pressure, this experiment is
1602      also described in the tutorial section of the manual
1603    checkpoint47d_pre
1604    
1605    checkpoint47c_post
1606    o Added a verification experiment for a global cubed-sphere ocean run
1607      -  verification/global_ocean.cubed32x32x30
1608      -  uses pkg/therm_seaice and pkg/bulk_forcing
1609    
1610    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1611    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1612      when using P-coordinate; only implemented for atmospheric config.
1613    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1614      NOTES: requires option NONLIN_FRSURF to be "#define".
1615    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1616    
1617    checkpoint47b_post
1618    Merging from release1_p9:
1619    o pkg/seaice
1620      - removed GOTO's and added taf directives
1621      - double precision constants to reduce the g77 (Linux)
1622        to F77 (SGI) differences reported in release1_p8
1623    o tools/genmake
1624      - added SGI options
1625    o verification/testscript
1626      - updated to that of checkpoint47a_post
1627    o verification/global_ocean.90x40x15/input/eedata
1628      - modified for SGI f77 compatibility
1629    o verification/lab_sea
1630      - added description of sea-ice model
1631      - added missing matlab routines
1632      - added test of thermodynamics parallelization
1633    
1634  checkpoint47a_post  checkpoint47a_post
1635  o new pkg: aim_v23  o new pkg: aim_v23
1636   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.

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