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revision 1.12 by cnh, Fri Jul 17 02:25:15 1998 UTC revision 1.525 by edhill, Sat Jul 30 00:58:40 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
8      (2) its ready to be documented during the 20050801 DocFest
9    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
10      for ideal_2D_oce and lab_sea on linux_ia32_g77
11    
12    checkpoint57n_post
13    o adding precip control xx_precip 32
14    o adding swflux control xx_swflux 33
15    o Replacing 10 forcing penalty cost routines by 1 generic.
16    o Implementing partitioning in time-mean and variable adjustment
17      for atmos. state.
18    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
19    o in natl_box_adjoint:
20      * updated exp 1 to 10
21        (but does not have time-mean vs. variable split results yet)
22    o updated global1x1/*_seaice_adj/
23      to incorporate latest changes
24    o enable useSingleCpuIO for mdsio vector routines
25      (applies in particular to tapelev I/O)
26    o removed inefficient K-loop in all active_file*control*.F
27    
28    checkpoint57m_post
29    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
30      and advect_cs (use EXCH-2 and standard cs-32 grid files).
31    o pkg/exch2: filling of face-corner halo regions is optional
32      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
33    
34    checkpoint57l_post
35     tag before updating tutorials (pre-release-2)
36    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
37       for output and interpolation of input fields onto model grid)
38    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
39       Affects results of exp. rotating_tank ; update output.txt.
40    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
41          and taking the square quantity and/or using a fraction-weight field.
42    o fix aim_diagnostics_init.F mate numbers.
43    o add mnc output capability to diagnostics/diagstat and update
44      our cvsignore files for the ACSII output generated
45    
46    checkpoint57k_post
47    o lab_sea now uses diagnostics package and provides a suite of
48      new EXF diagnostics output.
49    
50    checkpoint57j_post
51    o exf
52      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
53        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
54        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
55      * extended diagnostics output
56        - now includes all EXF variables
57        - hs, hl moved to common block
58        - separate S/R for diagnostics, called after ctrl vector is added
59        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
60        - EXFqnet contains true Qnet (i.e. includes qsw)
61      * updated verif. lab_sea, global_with_exf
62      * Rearranging hflux (exf_mapfields -> exf_getforcing)
63        to ensure that diagnostics sees a true EXFqnet
64    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
65    o diagnostics pkg: change pointers so that 1 diagnostic can be used
66      several times with different frequencies.
67    o mnc-ify the thsice package as requested by Daniel Enderton
68      - the monitor--MNC output needs work
69      - many attributes need to be added (most are currently blank)
70    o mnc-ify theaim_v23 package as requested by Daniel Enderton
71      - many attributes need to be added (most are currently blank)
72    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
73    o add Sadourny like discretization to the 4th.O vorticity advection scheme
74    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
75      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
76         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
77    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
78     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
79    
80    checkpoint57i_post
81    o Diagnostics package was changed: diagnostic allocation is now deactivated
82      by setting an empty file name in the namelist (used to be by setting 0 frequency)
83    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
84      add 1rst Order upwind vertical Shear.
85    o add a quick fix for A/B checkpointing in OFFLINE mode
86    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
87      end-run around the C/Fortran linking horror in eesup/src/timers.F
88    o added pkg/runclock: allows user to terminate run based on wall clock
89    o added non-hydrostatic scaling parameter: nh_am2
90    o pkg/my82: futile attempt to make results compiler-independent by adding
91      some "_d 0", etc. no effect.
92    o for mnc output, fill the 'T' coordinate var with myTime and create a
93      separate 'iter' variable for iteration count
94    o pkg/diagnostics:
95      add new capability: output of Global/Regional & per-level statistics ;
96      tested against monitor output (including land & thSIce) on various exp.
97    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
98    
99    checkpoint57h_done
100      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
101      data.diagnostics, data.gchem, data.ptracers) is done.
102    
103    o pkg/diagnostics: prepare for Global/Regional statistics.
104      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
105    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
106      and rename it: DIFFERENT_MULTIPLE
107    
108    checkpoint57h_post
109    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
110    o pkg/diagnostics: change output frequency, now in seconds (instead
111      of Nb of iterations). This requires to change data.diagnostics.
112    checkpoint57h_pre
113    
114    o in mnc, let the user create the output dir if both mnc_outdir_date
115      and mnc_outdir_num are false
116    o add fflags() to pkg/diagnostics which allows one to specify, on a
117      per-file basis, the file precision [default behavior is unchanged]
118    o added diagnostics to pkg/kpp, including computation of mixed layer
119      depth based on a temperature/density criterion
120    o updated verification/natl_box to test the new pkg/kpp diagnostics
121    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
122    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
123    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
124      not mnc -- this mistake was found by JMC and is now corrected
125    
126    checkpoint57g_post
127    o add Adams-Bashforth 3rd Order time stepping:
128      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
129      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
130    checkpoint57g_pre
131    
132    o make lambda[Theta,Salt]ClimRelax spatially varying
133      (default remains spatially uniform constant based on tau)
134    o added new control variables
135      * init. uVel, vVel, etanN
136      * lambda[Theta,Salt]ClimRelax
137    o separate masks used for ctrl_pack/unpack 'from write_grid' output
138      (suggested by G. Forget)
139    
140    checkpoint57f_post
141    o add parameter "baseTime" = model base time = time at iteration zero
142      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
143      account for baseTime shift
144    o move Coriolis arrays from PARAMS.h to GRID.h
145    checkpoint57f_pre
146    
147    o mnc-ifying the seaice package
148    o introduced an alternative length scale calculation for use in the limiting
149      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
150    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
151    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
152      as well as grad(vort3).  Made it compatible with both approximate form
153      for the cubed sphere and full form of these gradients.  Added flag
154      useFullLeith to select between approximate and full form.  
155    o add "d0" in getcon.F to reduce differences between compilers/platforms
156      update output.txt of exp. fizhi-gridalt-hs
157    o change port_rand funtion to allow to set the seed.
158    o fix obscure MNC bug involving conversion between reals and integers
159      - it caused no problems with certain (eg. gcc, ifc) compilers but the
160        new version is now more standards-compliant
161    o adjoint-related modifications
162      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
163      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
164      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
165    
166    checkpoint57e_post
167    o Adding eddy stress controls a la Ferreira et al.
168    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
169    
170    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
171      update output.txt of exp. fizhi-gridalt-hs
172    o add more "Z" dimensions and associated coordinate vars to MNC
173    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
174    o parameter calendarDumps: when set, approximate months (30-31 days) and years
175      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
176      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
177      months and years.  Requires pkg/cal.
178    o diagnostics: add pickup functionality
179      - off by default for backwards compatibility
180      - current version only uses MDSIO -- MNC will be added
181    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
182    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
183    
184    checkpoint57d_post
185    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
186    o modify verification/ideal_2D_oce so that it tests the creation of mnc
187      output from the diagnostics package
188    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
189    o make genmake2 more portable by using ".$FS" instead of ".f" for more
190      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
191    o add coordinate variables to the MNC output from the diagnostics package
192    o change MNC-flags default value: true when useMNC=TRUE
193    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
194      the ability (off by default) to read the grid information using MNC
195    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
196    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
197    o do snap-shot diagnostics at the middle of the time-interval (instead of
198      at the end).
199    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
200      new test for AIM with thSIce + slab-ocean
201    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
202    o move state variable diagnostics to the beginning of the time step ;
203      (note: still needs some work specially for snap-shot diagnostics)
204      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
205    
206    checkpoint57c_post
207    o Change testing option (-ieee) to get closer agreement between g77 & ifort
208    o generate new output.txt files on faulks with g77 & the new -ieee option
209    checkpoint57c_pre
210    
211    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
212      update output.txt of exp. global_ocean.90x40x15
213    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
214      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
215    o add saltFlux(+File) forcing capability with periodicExternalForcing
216    o allow to use pkg diagnostics for GM-Redi & ThSIce output
217    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
218    o improvements for the MNC output from DIAGNOSTICS:
219      - correct handling of the unlimitied dimension
220      - all dims now have associated coordinate variables
221      - variables located at U, V, and Corner ("Z") points are now written
222        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
223        *all* data points are output
224    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
225    o added pkg/seaice/seaice_monitor.F
226    o mdsio_readfield.F can now read files visible only to master MPI process.
227    o pkg/seaice: some test code for ice-modified ocean stress
228    o exf_getffields interpolation defaults to bilinear for all scalar forcing
229      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
230      spurious negative numbers for precipitation and humidity.  Will cause
231      some small numerical differences for integrations using pkg/exf/exf_interp.F.
232    o pkg/ctrl/
233      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
234        May be enabled via doPackDiag
235      *  introduce z-scaling of
236         + gradient (doZscalePack) and
237         + control (doZscaleUnpack)
238    o pkg/mdsio/
239      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
240      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
241    
242    checkpoint57b_post
243    o simplify options in diagnostics_fill arguments (remove weird combinations)
244    o fix MNC coordinate variables so that they now contain per-face index
245      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
246      general, EXCH2 grids are only aligned to a "local" coordinate system
247    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
248    o Implement instantaneous output within pkg diagnostics:
249      setting a negative frequency in data.diagnostics produces
250     "snap-shot" output (as opposed to time-average if freq > 0)
251    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
252      NOTE: change ptracer diagnostics name: use 2 characters to work with
253            more than 9 tracers. Add also diagnostics of advect & diffus flux.
254    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
255      becomes the coordinate variable for the 'T' dimension
256    o add CF-style coordinate variables to MNC
257      - just a first cut:  numbers are meaningless on the cubesphere and
258        missing along the T axis but otherwise it works!
259    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
260    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
261    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
262      this is based directly on what the model compute, so that the content of
263      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
264    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
265    o clean up build options files for SunOS, in particular
266      - remove -traditional from xmakedepend
267      - change -xarch=v9 to -xarch=native for f77
268      - restore use of make (not gmake)
269      - add CC=gcc if using g77
270    o changes per discussion of AM, JMC, & EH3 today:
271      - move redundant "grid" variables out of "state" -- in preparation of
272        creating proper CF-style coordinate variables and in recognition
273        that any/all grid variables can be easily copied (eg. w/NCO) from
274        the grid files into any of the other NetCDF files
275      - *always* output grid variables with MDSIO (this will eventually be
276        changed)
277      - output MNC grid file if useMNC is true
278    o every instance of _END_MASTER() has been found and replaced with
279      _END_MASTER( myThid ) in order to satisfy certain picky Sun
280      preprocessors
281    o re-arrange diagnostics pkg initialisation:
282     - allow each package to extend the available diagnostics list
283     - add some checking and fix small problems (multi-threaded, ...)
284     - new S/R diagnostics_fill (replace fill_diagnostics):
285       look through the short list of active diag. (instead of the long list)
286       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
287    
288    checkpoint57a_post
289    o this set of changes restores TAMC compatibility
290      tested for global_ocean.90x40x15 adjoint on trough
291      (what a pain)
292    
293    checkpoint57a_pre
294    o some modifs in tools/build_options for sunos
295    o call ctrl_pack for ctrl at end for optimcycle=0
296    
297    checkpoint57
298    o add horizontal bi-harmonic viscosity for vertical velocity
299      - new parameter viscA4W (defaults to viscA4)
300      - affects only non-hydrostatic code
301      - to be done: no-slip lateral boundary conditions
302    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
303    o implement Implicit Vertical advection for pTracers
304    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
305      (implemented also for implicit vertical diffusion & advection)
306    o OBCS: extend application of tracer open boundary conditions
307      to a strip beyond the boundary of width Olx/Oly
308    o add call monitor to TAF set of required calls (flow directives)
309      and include in natl_box_adjoint
310    o untangle a few ifdefs related to cost, ctrl, autodiff
311      untangel a few ALLOW_ECCO_OPTIMIZATION
312    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
313      (theta2, salt2 in ecco_cost_weights)
314    
315    checkpoint56c_post
316    o OBCS as control variables
317      - update ctrl_ad_diff.list, obcs_ad_diff.list
318      - remove balance of obcs controls from default
319      - fix index bug nobcs in ctrl_init
320      - fix dummy fields filen in ctrl_pack
321      - add dummy weights for obcs
322    o lsopt: comment out fort.94 output
323    o optim:
324      - remove unnecessary header files
325      - adjusted namelists
326      - add xerbla.F to Makefile
327    o exf:
328      - multiple modifications of exf_check_range
329      - unit change in exf_init_runoff from [m/year] to [m/s]
330    o mdsio:
331      - i/o-vector change debugLevel from debLevA to debLevB
332    
333    checkpoint56b_post
334    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
335      is called from DO_THE_MODEL_IO
336      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
337      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
338      - clean up PTRACERS_WRITE_TIMEAVE a little
339    o add another verification experiment that tests both the cfc-pkg and
340      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
341      reactive tendencies treated inline with regular timestepping
342    o testreport previously did a lousy job of comparing small numbers, so
343      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
344      implemented in the little c-progam tmp_cmpnum.c which is embedded in
345      testreport.
346    o ptracers_monitor: bug fix for MPI
347    
348    checkpoint56a_post
349    o GCHEM: finish reorganizating the package
350      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
351        (introduces another 3D-array for each passive tracer, but only if
352        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
353        gchemTendency is not needed because the timestep is done separately)
354      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
355      - GCHEM is now---more or less cleanly---separate from PTRACERS
356      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
357        so clear to me how that should be done in a general way.
358    o CFC: improve formatting of output in CFC_ATMOS
359    o PTRACERS:
360      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
361        that ALL experiments with ptracers enable can be checked. This makes
362        GCHEM_MONITOR obsolete.
363      - include a runtime parameter PTRACERS_monitorFreq that defaults to
364        monitorFreq
365      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
366    o add PTRACERS (PTR0[1-5]) to testreport output
367    o exf_check_range:
368      * default changed to .TRUE.
369      * will check values for niter0 if debLevA, every timestep if debLevB
370      * STOP in exf_check_range if 'out of range'
371      * range chosen generous to allow for potential extema
372      TBD: a version with stricter range
373           permitted range would be runtime parameters
374    o GMredi:
375      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
376      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
377      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
378    o GCHEM:
379      - move call to GCHEM_FORCING_SEP, so that it is now called before
380        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
381      - introduced a useGCHEM runtime flag and applied it everywhere.
382      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
383        this flag is now only visible within GCHEM-pkg routines.
384      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
385        be replaced by a 3D array that is computed before thermodynamics; for
386        this, the tracer ID iTracer had to be included into the parameter list
387        of ptracers_forcing
388      - set up forward_step to call gchem_forcing, that will replace
389        gchem_forcing_int in ptracers_forcing
390      - cleaning up
391    o small cleaning of exch2: remove files that are also in eesupp/src
392    
393    checkpoint56
394    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
395    o mnc: cleanup "full" files--fixes out-of-memory problem
396    o ECCO-GODAE
397      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
398      * fully merged and updated from SIO code
399        windstress sign change affects
400        - exf_inscal_[u/v]stress
401        - sign of xx_tau[u/v] adjustments
402        - signs in cost_scat
403      * ctrl_get_gen: avoid update of tau[u/v] for first few days
404      * natl_box_adjoint updated and compressed
405      * 2-level checkpoint switch added
406        (tested in EXP. 1 of natl_box_adjoint)
407      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
408    o SVD
409      * first complete, non-hacked version for SVD calculations
410      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
411        performed via direct access files admtlm_vector.it????
412        (via ctrl_[un]pack)
413      * optimcycle is used for ARPACK iteration counter
414        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
415      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
416        and add linear transforms where necessary
417      * controls are initial/final SST, SSS (can be extended; need to check
418        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
419    o mdsio: filename info to both stderr, stdout
420    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
421      from sign change
422    
423    checkpoint55j_post
424    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
425      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
426    o add consistent build directories and .cvsignore files to verification
427    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
428    o make all subroutines 30 or less characters in length for certain older
429      compilers to work (a thorough search only turns up two routines in
430      pkg/ptracers)
431    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
432      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
433    
434    checkpoint55i_post
435    o change arrays for total vertical diffusivity (2.D if explicit,
436      3.D if implicit) ; each ptracer uses its own background value.
437    o added mnc/NetCDF output capability to ocn_compon_interf
438      - added bits to verification/cpl_aim+ocn so that it can run on
439        ITRDA and other clusters without the mpirun "-wd" option
440    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
441      configuration
442    o give MNC the ability to create additional files rather than
443      exceeding a specified file size limit "MNC_MAX_FILESIZE"
444      - the default is just less than 2GB which is a practical limit
445        on many systems
446    o Compute the non-local term using either KPP vertical diffusivity (=default)
447       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
448    
449    checkpoint55h_post
450    o add verification test "vermix"
451    o remove all the *_ioinc flags and replace with the single global
452      outputTypesInclusive flag
453    o allow to set a vertical profile of vertical diffusivity for T & S
454    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
455    o useMNC moved from data.mnc to data.pkg
456    
457    checkpoint55g_post
458    o Renaming carbon AD experiments to comply with testreport conventions
459    o Updating adjoint of Held-Suarez hs94.1x64x5
460    o Fixing directives for non-ECCO forward_step, after ECCO directives
461      have been fixed to avoid recomp. of do_oceanic_phys
462      Works well for global_ocean.90x40x15,
463      but recomp. issue remains for carbon
464    o Updating adjoint output for natl_box_adjoint after
465      pkg/ecco has been modified (see taga c55d_post)
466    
467    checkpoint55f_post
468    o rename to timeave_init_fixed
469    
470    checkpoint55e_post
471    o some delicate re-shuffle of store directives to avoid one
472      extra call of do_oceanic_physics
473      affects ecco_the_main_loop.F, do_oceanic_physics.F
474      checkpoint_lev1_directives.h
475    o NB: this may break global_ocean adjoint temporarily,
476      but it is clear how to fix it. Will do later, need this now.
477    
478    checkpoint55d_post
479    o ECCO specific cost function terms (up-to-date with 1x1 runs)
480    o ecco_cost_weights is modified to 1x1 runs
481    o modifs to allow observations to be read in as
482      single file or yearly files
483    o enable to read exf forcing fields as either
484      single file or yearly files (flag useExfYearlyFields)
485    checkpoint55d_pre
486    
487    o switch between 2-level and 3-level checkpointing
488    o add ability of MNC to write local and "partial" (eg. 2D slices where
489      the full 3D field is never actually stored) arrays to NetCDF files
490      with the correct (that is, the complete multi-dimensional) set of
491      array indicies
492      - used in mom_vecinv() to write the diagFreq output
493      - tested (demonstrated) in verification/aim.5l_cs
494    o further mnc-ification
495      - add verification/lab_sea to the list with mnc setups
496      - fix undefined mnc v-names in cd_code
497      - add kpp to mnc output (both snapshot and timeave)
498    o non-hydrostatic code
499      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
500        in calc_gw.F
501      - defaults to viscAh
502      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
503        friction or Leith) in non-hydrostatic mode, as long as there is
504        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
505    o pkg/cost
506      extend simple cost functions to treat time mean quantities
507      (T,U,V) via cost_accumulate_state from cost_tile
508    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
509        be 2 times larger than the minimum size the advection scheme requires.
510        now get a perfect conservation of salt in advect_cs test-exp (updated)
511    o GGL90 (Gaspar's TKE mixed layer)
512      - add horizontal diffusion of TKE, requires exchanges in
513        do_fields_blocking_exchanges, horizontal diffusivity is zero by
514        default. In OPA there is no horizontal diffusion of TKE but the
515        mixing coefficients are computed from a horizontal average of TKE of
516        6 points or so. I think that diffusion has a little more physical
517        justification.
518      - clean up ggl90_calc in the hope of reducing memory usage (this hope
519        was in vain)
520      - mask tke-variable in ggl90_init
521    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
522    o fix biharmonic diffusion on CS-grid.
523    o more obcs stuff
524      - added obcs_external_fields_load as an alternative to the EXF-pkg option
525        for reading boundary values. This routine is called from
526        obcs_prescribe_read
527      - updated obcs_check
528      - changed sponge layer relaxation parameter units for days to seconds
529      - turned off sponge layer by default
530      - changed argument list of OBCS_CALC to myTime+deltaTclock
531      - fixed about 35 bugs in obcs_external_fields_load
532    
533    checkpoint55c_post
534    o obcs stuff
535      - new runtime flags useOBCSprescribe, useOBCSbalance
536      - re-arranged obcs_calc
537      - moved exf_getobcs to obcs_prescibe_read
538        obcs_prescibe_read is called after ORLANSKI stuff
539        and independent of it (executable can contain all).
540      - updated obcs_check
541      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
542        These may be necessary only if tangential velocities are
543        prescribed at OB, not sure, needs testing.
544    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
545      which simplifies the calls and passes the ifc check-bounds test
546    
547    checkpoint55b_post
548    o add a 2D scalar, Z location, exchange_2 routine.
549    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
550      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
551      affects advect_cs results (for the wrong reason): update output.txt
552    o use a more standard discretization for biharmonic viscosity ;
553     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
554      affects results of dome set-up: update output.txt
555    o fix gad_advection.F (CubedSphere part), back to version 1.23
556    o fix bug in mom_vi_del2uv.F (CubedSphere part).
557    
558    checkpoint55a_post
559    o merged code to
560      * prescribe/read time-dependent open boundaries
561        (works in conjunction with exf, cal)
562      * sponge layer code for open boundaries
563      * each boundary N/S/E/W now has its own CPP option
564        (healthy for the adjoint)
565    
566    checkpoint55
567    o up-to-date adjoint of previous breaks
568      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
569      - global_ocean_ebm: adjoint still needs fix (TLM ok)
570      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
571      - carbon: * remove tr1-related adjoint verification
572                * add ptracer as control variable
573    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
574      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
575    
576    checkpoint54f_post
577    o in verification/carbin/ remove experiment related to
578      ALLOW_PASSIVE_TRACER (array tr1 etc)
579      code_ad/ input_ad/ results_ad
580    
581    o add two new packages
582      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
583        + subject to optimization (memory)
584      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
585        + subject to reordering (many GOTOs in the original code)
586        + so far opps is called for every (i,j) point, and then operates in
587          the vertical; one may want to reorder the scheme in order operate in
588          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
589          fields)
590    o overhaul of IO so that we now have flags for MDSIO and/or MNC
591      - all verification tests compile and run with linux_ia32_g77
592      - defaults are compatible with current input files--nothing
593        should change if you were not previously using MNC
594      - MNC output has been added in numerous places (eg. timeave)
595        but there are still a few writes not yet do-able with MNC
596        (this is in progress)
597      - flags now allow for either/or/both use of MDSIO and MNC and
598        documentation will soon follow
599      - numerous small formatting cleanups for ProTeX
600    o add version info (via BUILD_INFO.h) to MNC and stdout
601    
602    checkpoint54e_post
603    o add two new packages
604      - pp81 (Packanowski and Philander, 1981), Richardson number and
605        stratification dependent mixing
606      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
607      - these scheme operate in a similar manner as KPP (without ghat, of
608        course), however there is only one diffusivity that is used for both
609        temperature and salinity (and passive tracers)ç
610    o add offline package
611    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
612      provided by Stephanie Dutkiewicz
613    o genmake2: add ability to search for C compilers and cleanup test output
614      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
615    
616    checkpoint54d_post
617    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
618    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
619      leading to additional shift by 5 days each year of integration
620       (i.e. leading to considerable offset over the years)
621    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
622    o start with no AB and no initial filtering (staggerTimeStep):
623      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
624    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
625      (external loading & cpl import/export stay in forward_step.F)
626    o update coupling interface to work with new staggerTimeStep
627    o change MDSIO ptracers_pickup.
628    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
629    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
630    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
631    
632    checkpoint54c_post
633    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
634      this affects (truncation error) output.txt of test-exp:
635       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
636    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
637    o change Qnet to always be the net heat flux, (+upward).
638      affects (truncation error) output of natl_box exp.: updated
639    o define the max number of passive tracers in PTRACERS_SIZE.h
640    o start to test mnc routinely in exp0
641    o add sea-ice loading (sIceLoad) as a new forcing field.
642    
643    checkpoint54b_post
644    o add testreport "-j JOBS" option for parallel builds (tested and pretty
645       impressive on Altix and Opteron systems)
646    o diagnostics can now write NetCDF files through the mnc package
647    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
648    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
649    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
650      affects (truncation error) output of lab_sea & natl_box exp.: updated
651    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
652    
653    checkpoint54a_post
654    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
655    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
656    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
657    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
658      + internal_wave (shift in writing cg2d_ini_res)
659    checkpoint54a_pre
660    
661    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
662      - modified verification/lab_sea and natl_box_adjoint accordingly
663    
664    checkpoint54
665    checkpoint53g_post
666    o prepare splitting of thermodynamics: store convect.counter in common block
667    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
668      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
669    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
670    o new parameter "nShapS": allow to treat differently S from T (nShapT)
671    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
672    o restore adjointability
673    
674    checkpoint53f_post
675    o modifications that affect AIM experiment results (update output.txt):
676      - no advection of S at top interface Nr (pkg/generic_advdiff)
677      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
678    o AIM pkg:
679      - include stability function into surf.Flux derivative relative to Tsurf
680      - calculate clear-sky radiation & surface temp. change (for diagnostics)
681    
682    checkpoint53e_post
683    o merged cylindrical coord configuration
684    o added rotating_tank experiment
685    checkpoint53e_pre
686    
687    checkpoint53d_post
688    o faulks upgraded: re-generate output.txt that have changed:
689       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
690    o Added Bryan and Lewis, 1979, vertical diffusivity profile
691    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
692    o added Sadourny discretization of Coriolis
693      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
694      - re-enabled use of omega3 (useAbsVorticity)
695    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
696      vector-invariant equations
697      - note: does *NOT* yet use same variable visc. for no-slip BC's.
698    o recoded the lateral boundary conditions for non-hydrostatic w, this time
699      hopefully without new bugs
700      - still to do: biharmonic friction for non-hydrostatic w
701    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
702    o regenerated output for global_ocean_ebm (using -ieee)
703    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
704      of mom_common/
705      - simple re-arrangement of instructions within computing loop
706    checkpoint53d_pre
707    
708    checkpoint53c_post
709    o new version of coupler for AIM+thSIce and Ocean models
710     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
711     - land: change Evaporation of snow
712     - aim with thSIce: fix bug in snow-precip.
713    o changes to calc_gw.F
714     - bug fix for w^2 term near the bottom boundary
715     - (hopefully) improve the lateral slip boundary condtions for use with
716        partial/looped cells
717      - because the bug fix changes two verification experiments anyway (exp5
718        and plume on slope), change the lateral boundary condition from half slip
719        to the value of no_slip_sides
720    o ebm package wasnt quite up to the parallel task. Fixed that.
721    o Adjoint of EBM package + verification
722      * TLM OK
723      * ADM not sufficient accuracy yet (needs further testing)
724    
725    checkpoint53b_post
726    o Commiting new energy balance model to repository
727      * package is pkg/ebm
728      * verif. is verification/global_ocean_ebm
729      * references are in ebm_driver.F
730    C      * X. Wang, P. Stone and J. Marotzke, 1999:
731    C        Global thermohaline circulation. Part I:
732    C        Sensitivity to atmospheric moisture transport.
733    C        J. Climate 12(1), 71-82
734    C      * X. Wang, P. Stone and J. Marotzke, 1999:
735    C        Global thermohaline circulation. Part II:
736    C        Sensitivity with interactive transport.
737    C        J. Climate 12(1), 83-91
738    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
739    C        Destabilization of the thermohaline circulation
740    C        by atmospheric eddy transports.
741    C        J. Climate 7(12), 1870-1882
742    o Will need long integration testing.
743    checkpoint53b_pre
744    
745    o created pkg/mom_common in preparation for variable viscosity code
746    o renamed and split ini_mnc_io
747    o pkg/land: only liquid water can diffuse or run-off
748    o AIM using land: soil wetness availability account for snow
749    o added printMapIncludesZeros to EEPARMS namelist
750    
751    checkpoint53a_post
752    o restore TAMC compatiility for exf_constants.h
753      (no usage of _d in .h)
754    o Additional storing in KPP in an attempt to fix
755      TAMC problem with adjoint of KPP code.
756      (no success...)
757      Identical code works fine with TAF.
758    o Fixed verification/natl_box_adjoint experiments.
759      Initial conditions for Experiments 4 and 5 are now
760      set to "SEAICE_initialHEFF=0", which is more reasonable,
761      and hence gives results closer to that of Experiment 2.
762      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
763    
764    checkpoint53
765    o stable checkpoint with up to date adjoint
766      TLM tests only run for 1st grdchk at the moment. Its unclear if
767      this is a code problem or a problem with resetting code for g_
768      variables that is being autogenerated wrong.
769      Otherwise:
770       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
771       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
772         are both still in chaos following their security messes.
773    
774    checkpoint52n_post
775    o various build (mostly genmake2) changes including:
776      - ability to build/run more easily within Cygwin and MacOS X
777      - more complicated Makefiles with a stronger dependence on Gnu Make
778    o pkg/seaice modifications
779      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
780        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
781        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
782      - changed proxy for geostrophic velocity and updated
783        verification/lab_sea/results/* accordingly
784      - removed ADI dynamic solver from pkg/seaice
785      - replaced all occurrences of 1/CSTICE or 1/CSUICE
786        they caused a segmentation fault under certain circumstances
787      - removed unused field WATR
788    o bug fix in exf-package:
789      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
790         now reflect that.
791    o small fixes in the cal-package:
792      - set reference date to first of January for the 'model'-calendar
793      - failing of cal_CheckDate in cal_FullDate now actually results in a
794        warning
795    o small modifications in exf-package to increase flexibility:
796      - change climtempfreeze from a constant to a runtime parameter that
797        is specified in data.exf_clim (default = -1.9)
798      - introduce runtime parameter windstressmax (default = 2.0) that is
799        specified in data.exf
800    o fix in pkg/thsice:
801      - update Evap (Tsf changes) to be consistent with Latent heat flux
802      - maintain snow precipitation unchanged (even if Tsf >=0).
803     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
804    
805    checkpoint52m_post
806    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
807      this does not change any of the results, because myIter=0 in swfrac always
808      lead to jwtype=2 (the default anyway), but the call makes little sense
809      as a default
810    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
811    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
812      atmospheric model (AIM) to use it ; add a "slab ocean" component.
813    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
814    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
815    o extending useSingleCpuIO option to work with new exch2 I/O format
816      - old-style, missing-tile I/O is still accessible by defining CPP
817        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
818    o monitor package can write to NetCDF files and/or STDOUT
819    o fix re-definition bug in MNC_GRID_INIT_ALL()
820    o doc/api_reference added
821      - a framework for building an API Reference Manual using all
822        the "protex" comments embedded in the code
823      - see pkg/generic_advdiff, pkg/mnc for examples
824    o MNC:
825      - make myThid the last argument for all subroutines
826      - new default for the grid files: NO halos
827      - add useMNC and other run-time flags
828      - separate per-file-group handling of the unlimited dimension
829      - early initialization of MNC w/ flags read at the eeboot stage
830        and lookup tables set in initialize_fixed
831      - write all MNC output to a freshly-created directory
832    o thermodynamics sea-ice (thsice) is now tested with testreport.
833    o test exp. advect_cs: use the standard cs32 grid ; update output.
834    o Added functionality to grdchk:
835      pick global i,j,k position (or nearest wet) where to perform check.
836    
837    checkpoint52l_post
838    o new land formulation:
839      a) use ground enthalpy as prognostic variable to ensure exact
840         energy conservation.
841      b) account for water temperature and for latent heat of freezing
842         in all processes (rain, run-off, ground storage)
843      c) compute surface and ground temperature implicitly.
844    o aim_v23 modification for new land model:
845      a) Treat separately land / ocean / sea-ice surface fluxes
846         to allow implicit computation of land & sea-ice surface temp.
847      b) add snow precipitation.
848    checkpoint52l_pre
849    
850    o fix problem (when 1 tile is empty) in min/max monitor.
851    o fix bug in timeAve (u,vZetatave in common block)
852    o no restoring terms under ice for pkg/seaice
853    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
854    o bug fix for pkg/seaice pickups
855    o change MNC call locations and add coordinate attributes
856    o mask vorticity at the corner ; affects global_ocean.cs output
857    o fix ini_curvilinear_grid ; test CS experiments with mpi
858    o aim.5l_cs: modify sea-ice fraction input file ; update output
859    o exf: Adding simple range check routine for exf fields after read
860    
861    checkpoint52k_post
862    o removed top-level directory "diags"
863      - we migrated these functions to pkg/timeave a long time ago
864    o fixed bug introduced in pkg/monitor
865    o accuracy ctrlprec = 32 insuffient for gradient checks using
866      averaged fields (I/O via cost_averages)
867      -> use ctrl.h in active_file*.F to control I/O precision.
868    o paramter list of CALL ADTHE_MAIN_LOOP
869    o added initial do_the_model_io to ecco
870    o set all ...Freq to zero after cost_final
871      taveFreq, dumpFreq, pChkptFreq
872    o MAIN and ECCO differentiability restored
873    
874    checkpoint52j_post
875    o fix nchklev in tamc.h for global_ocean...
876    o Bringing flow and store directives up-to-date
877    o Really weird thing!
878      call do_the_model_io from the_main_loop with parameters
879      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
880      TAF places a faulty re-call of initialise_varia
881      after cost_final call which should not be there!
882    checkpoint52j_pre
883    
884    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
885      error messages
886    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
887    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
888      debug output
889    o modfied mdsio_writefield.F to handle non-global files under exch2
890    o update AIM Cubed-Sphere exp (aim.5l_cs):
891      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
892    o update AIM Equatorial Channel exp:
893      use standard aim_v23 pkg and change the SST fields to be more realistic.
894    o globalFile now works with exch2
895    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
896      mon_vort3.F to make exch2 friendly with >1 tile per cube face
897    o limit timeave output for hi-res integrations
898    
899    checkpoint52i_post
900    o removed CPP_EEOPTIONS.h from verification/*/code
901    o updated the tiling for global_ocean_pressure
902    checkpoint52i_pre
903    
904    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
905      the old pkg/aim).
906    
907    checkpoint52h_pre
908    o shortened offending lines in exch2_send_rx?.template
909    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
910    o genmake2: add build & execute test for NetCDF code
911    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
912      old grid files, moved CPP_EEMACROS.h to pkg/exch2
913    o added useSingleCPUIO flag to monitor.F and mon_out.F
914    o added temporary hack for sea-ice dynamics on the cube:
915      metric terms are ignored and it is assumed that
916      there is no sea-ice on cube faces 1, 2, 4, and 5.
917    
918    checkpoint52f_post
919    o added exch2 cube routines to pkg/exch2
920    o modified hs94.cs-32x32x5 to use it
921    o added new grid files to hs94.cs-32x32x5
922    checkpoint52f_pre
923    
924    checkpoint52e_post
925    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
926      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
927    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
928      to work with implicit vertical advection and AB ;
929    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
930    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
931     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
932    checkpoint52e_pre
933    
934    o fix bug in impldiff when Nr=1 or Nr=2.
935    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
936    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
937    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
938      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
939    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
940    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
941    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
942    
943    checkpoint52d_post
944    o re-tiled many expts to allow comparison in multi-processor mode
945      - updated output accordingly
946      - changed hs94.128x64x5 to use intial T from file rather than use the
947        random number generator
948    o add infrastructure in model routines for fizhi and gridalt packages
949    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
950    o changes to permit hi-res, cubed-sphere, configuration
951      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
952      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
953      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
954        of surface winds for the cube
955      (A verification experiment, based on global_ocean.cs32x15, but with
956       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
957       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
958       complete with example surface forcing files and matlab scripts to look
959       at the output and compare it with that of global_ocean.cs32x15.)
960    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
961       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
962       to conform to the common rule.
963    o check-in the first version of the coupler + interfaces for multi-components
964       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
965       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
966       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
967       - ocean and atmos. share the same horizontal grid (no interpolation).
968       - exchanges between component and coupler is done in forward_step
969    o new verification experiment, cpl_aim+ocn:
970       coupled ocean - AIM atmosphere on cs32 grid.
971    
972    checkpoint52d_pre
973    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
974    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
975    
976    checkpoint52c_post
977    o Fixing OPTIONS files for use of exf:
978      - ALLOW_ECCO not needed
979      - ECCO_CPPOPTIONS.h should not be included from
980        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
981        as has been the case in the past
982      - All cal/exf related options are currently set in
983        single header file. Should remain so until we
984        agree on a consistent new policy.
985    o Removed all CPP options for cal package.
986      cal has no more CPP options.
987    o modified STOREs in GAD_ADVECTION
988    o corrected key comp. for passkey
989    
990    checkpoint52b_post
991    o new version: "thsice" of thermodynamic sea-ice pkg:
992     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
993     - modify fluxes but do not change theta directly;
994     - light cleaning of bulk_force pkg (still needed with thsice).
995     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
996       + output_thsice.txt to test thsice & bulk_force pkgs.
997    o put back grid & coriolis monitor output.
998    checkpoint52b_pre
999    
1000    o call "do_the_model_io" at the beginning (=> dump initial state)
1001    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1002    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1003      (need info on NUMBER_OF_PTRACERS)
1004    o missing PTRACERS headers in some routines
1005    o default tamc.h in pkg/autodiff supposed to crash
1006      to ensure proper customization
1007    
1008    checkpoint52a_post
1009    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1010      - moved surfaceTendencyTice from pkg/seaice to main code
1011      - subroutine FREEZE_SURFACE now limits only surface temperature
1012        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1013        => new output.txt for global_ocean.cs32x15 & global_with_exf
1014      - keep the old version of FREEZE for backward compatibility;
1015        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1016      - corresponding modifs for TAF directives
1017    o added surface flux output variables to TIMEAVE_STATVARS
1018    o time-averaged output for pkg/ptracers
1019    o fix problem with ECCO-related divided adjoint
1020      snapshot file was missing some ad-variables,
1021      but no warning issued by TAF
1022    
1023    checkpoint52a_pre
1024    o some bug fixes for #undef REAL4_IS_SLOW
1025    
1026    checkpoint52 = ecco_c52_e35
1027    o after testing adjoints of checkpoint51u_post
1028    
1029    checkpoint51u_post
1030    o this is the post-merge tag of the ecco-branch
1031      (needs another clean checkout and re-testing)
1032    o various natl_box_adjoint configs and results
1033      but no input fields
1034    o obcs adjoint not yet merged!
1035    o adding ECCO global 1x1 and 2x2 degree configs
1036    o updated/extended some store directives for seaice
1037    o pkg/ecco now containes ecco-specific part of cost function
1038    o top level routines the_main_loop, forward_step
1039      supersede those in model/src/
1040      previous input data.cost now in data.ecco
1041      (new namelist ecco_cost_nml)
1042    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1043    
1044    checkpoint51t_post
1045    o this is the pre-merge tag of the ecco-branch
1046    
1047    checkpoint51s_post
1048    o cleanup: removed various obsolete #define-s
1049    o pkg/grdchk
1050      - renamed 'ph-grd 3' to 'grad-res'
1051      - merged from ecco-branch
1052        (remaining bug fixes for obcs gradient checks)
1053      - additional high-precision output for testreport
1054        (grep for 'precision_grdchk_result')
1055    
1056    checkpoint51r_post
1057    o cleaned up or removed CPP_OPTIONS.h files
1058    o updated results for some of the tests to reflect the new
1059      optfiles (-ieee: -O0 instead of -O3)
1060    
1061    checkpoint51q_post
1062    o cd_code:
1063      - moved cd_scheme.F -> cd_code_scheme.F
1064      - separate read_checkpoint from cd_code_ini_vars.F
1065      - separated cd_code part from write_checkpoint
1066      - updated AD_SOURCE, generated .flow
1067      - added CD_CODE_VARS.h to the_main_loop
1068      - Moving cd_code specific store dir.s to pkg/cd_code
1069    o ctrl package totally restructured
1070      - pack/unpack now optional and decoupled from
1071        xx_/adxx_ I/O
1072      - ctrl_pack/unpack cleaned
1073        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1074      - confined inclusion of AD_CONFIG.h to where necessary.
1075    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1076    
1077    checkpoint51p_post
1078    o create initial cd_code package
1079      - WARNING: the initialization of fields within packages
1080        is broken because INI_FIELDS (where READ_CHECKPOINT is
1081        called) is called *before* PACKAGES_INIT_VARIABLES.
1082        This seems to be backwards since
1083        1) its important to initially zero the entire field including
1084           the "halo" region
1085        2) zeroing needs to be done *before* reading pickup info
1086           and the pickup call might or might not happen in any
1087           particular run
1088      - this needs an overhaul for R2
1089    o cleanup verification/*/code/GMREDI_OPTIONS.h
1090    o cleanup testreport
1091    
1092    checkpoint51o_post
1093    o bringing AD-related verif's up to date with genmake2
1094      - carbon/
1095      - global_ocean.90x40x15/
1096      - hs.94.1x64x5/
1097      - (front_relax/ )
1098    o (more) consistent directory structure for AD-related verif.'s
1099    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1100    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1101    o bug fix in find_alpha.F for MDJWF:
1102      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1103        change rho -> rho-rhoConst
1104      - replace call find_rho to find_rhonum
1105    o initialisation of rFlx extended to full array (required by TAF)
1106      and shifted to thermodynamics
1107    o removed PTRACERS.h in ptracers routine
1108    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1109    o Correcting initialisations for fVerU, fVerV.
1110    o helping TAF to recognize dependency on kUp for
1111      fVerU, fVerV
1112    o Replacing delZ by delR in pkg/ctrl/
1113    checkpoint51o_pre
1114    
1115    o undid all of cp51 pending some cleanups and discussion
1116    o added the [#include "AD_CONFIG.h"] statement to all files that need
1117       it for adjoint/tl #defines
1118     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1119     o removed tools/genmake since it no longer works
1120    
1121    checkpoint51n_post
1122    o modifications to make FREEZE flux visible to pkg/kpp
1123      - moved surfaceTendencyTice from pkg/seaice to main code
1124      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1125      - subroutine FREEZE now limits only surface temperature
1126        (this means new output.txt for global_ocean.90x40x15,
1127         global_ocean.cs32x15, and global_with_exf)
1128    o added surface flux output variables to TIMEAVE_STATVARS
1129    
1130    checkpoint51n_pre
1131    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1132    o added [#include "AD_CONFIG.h"] to all files that use the following
1133      defines:
1134      - ALLOW_ADJOINT_RUN
1135      - ALLOW_TANGENTLINEAR_RUN
1136      - ALLOW_ECCO_OPTIMIZATION
1137    
1138    checkpoint51m_post
1139    o incorporating changes to get TAMC/TAF working in genmake2
1140      - added new TAMC/TAF targets to the Makefile
1141      - various cleanups related to package handling
1142      - these changes should have no impact on the forward model
1143    
1144    checkpoint51l_post
1145    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1146     - faster algorithm for cal_addtime.F
1147     - higher precision arithmetic, where needed
1148     - pkg/exf *startdate variables changed from calendar date to
1149       model integration time
1150    
1151    checkpoint51l_pre
1152    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1153    o enable to apply restoring on S & T only in a latitude band.
1154    o update output (external_forcing_surf modif. change truncation errors)
1155       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1156    
1157    checkpoint51k_post
1158    o change default to: useNHMTerms=.FALSE.
1159     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1160       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1161     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1162        exp1, ideal_2D_oce
1163     - change data file of oceanic exp (leave the results unchanged for now)
1164       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1165    o set gravitySign automatically according to the vertical coordinate used
1166      (and change sign: back to "logical" value: +1 when R increases downward)
1167    o added an include barrier to the default CPP_OPTIONS.h and
1168      removed the #include "PACKAGES_CONFIG.h" from it
1169    o fix a bug in mom_fluxform (from chk51j_post)
1170    
1171    checkpoint51j_post
1172    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1173    o adjusted some flow directives (dynamics, thermodynamics)
1174    o added cubed-sphere case to test cost function
1175    o heckpoint_lev?_directives.h now include
1176      pkg-specific directives, whenever those are enabled.
1177    o Moving pkg-specific flow directives to corresponding pkg
1178      Moving pkg-specific differentiation list to corresponding pkg
1179      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1180      ---> conventions are
1181           - pkg_ad.flow
1182           - pkg_ad_diff.list
1183           - pkg_ad_check_lev?_dir.h
1184    
1185    checkpoint51i_post
1186    o merge of the branch-genmake2
1187      - knowingly breaks the older genmake
1188      - automatic generation of all ALLOW_${PKG_NAME} defines
1189      - new testreport supersedes older testscript
1190    o large number of package inclusion and header cleanups
1191    checkpoint51i_pre
1192    
1193    o new output for adjoin of global ocean vector invariant
1194    o fix for checkpoint of thermodynamic seaice and bulk_force
1195    o Steph gchem various cleanups
1196    
1197    checkpoint 51h_pre
1198    o fixed some single quotes
1199    o modify gchem pkg to be more versatile
1200    o modifications to clean up dic pkg
1201    o add pkg/cfc
1202    
1203    checkpoint51g_post
1204    o provide links for ARPACK and ADM*TLM
1205    o start removing verification/vero/
1206    o update AD-related stuff
1207      (in particular some IF-statements in model/src/ routines)
1208    o adding to verification/global_ocean.90x40x15/ adjoint of
1209      vector invariant setup
1210    
1211    checkpoint51f_post
1212    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1213    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1214      of tracer Green's fucntions for ocean inversion project.
1215    
1216    checkpoint51f_pre
1217    o Added on-the-fly spatial interpolation capability
1218        "USE_EXF_INTERPOLATION" to pkg/exf.
1219      - This is a temporary Cartesian-grid hack until
1220        the super-duper ESMF coupler becomes available.
1221      - See verification/global_with_exf/README for usage example.
1222      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1223        flags and modified pkg/seaice accordingly.
1224    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1225        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1226        non-local transport term.
1227    
1228    checkpoint51e_post
1229    o pkg/mom_vecinv:
1230      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1231      - add time-ave diagnostic of vorticity advection.
1232    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1233    o atmospheric geopotential: - include water vapor effect;
1234                                - use p^kappa in p* scaling.
1235    o land pkg: read initial state from files.
1236    o AIM : add stratospheric drag in the upper level
1237    
1238    checkpoint51d_post
1239    o change function ILNBLNK (=> last non-blank char.) to return zero
1240      (instead of the string length) when the string. char is empty
1241    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1242    o modif's to restore TAMC compatibility
1243      - avoid "_d" constructs in PARAMETER declarations
1244      - avoid interrupting lines by comment lines
1245    o Use cluster local disks for purely local I/O
1246      vs. globally visible disks needed for ctrl stuff
1247      (merged from ecco-branch)
1248      - new active_file_loc... and mdsio_..._loc routines
1249      - affected packages: autodiff, ctrl, grdchk, mdsio
1250    
1251    checkpoint51c_post
1252    o introducing integer flag debugLevel
1253      - debLevZero: suppress all output
1254      - debLevA: standard
1255      - debLevB: equivalent to current debugMode=.TRUE.
1256    o introducing pathname variable mdsioLocalDir for mdsio
1257      that can be specified at runtime
1258      (relevant for cluster I/O to local disk)
1259    `
1260    >>>checkpoint51b_post
1261    adjoint of ptracers
1262    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1263    o extended state in checkpoint_lev?, etc.
1264    o alternative ctrl/cost with tr1 or ptracer
1265    o new comlev1_bibj_ptracers
1266    o new ptracers.flow
1267    o made ptracers_forcing same as external_forcing_s
1268    o added verification for adjoint with ptracers
1269      - adm. grdchk fail so far
1270      - tlm. grdchk OK
1271      - checked tapelev/comlev recomputations: OK
1272    <<<checkpoint51b_pre
1273    
1274    checkpoint51a_post
1275    o added code for biogeochemistry package
1276      - new pkgs: dic, gchem
1277      - new subroutine in ptracers
1278    o modify code for biogeo packages
1279      - in model/src and pkg/ptracers
1280    
1281    checkpoint51
1282    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1283      - autodiff, ctrl, exf, grdchk, seaice
1284      kept separate packages
1285      - cost, ecco, obcs
1286    o updating verification/internal_wave, verification/lab_sea
1287      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1288    
1289    checkpoint50i_post
1290    o Preparing next differentiable checkpoint and sync
1291      of MAIN vs. ecco-branch
1292      - 1st step: this one is differentiable
1293      - 2nd step: next(! not this) checkpoint will have updated packages
1294                  from ecco-branch)
1295    
1296    checkpoint50h_post
1297    o new package "land": provide surface BC for AIM.
1298    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1299    o AIM: use true log-P extrapolation for near surface temp (= as in
1300        F.Molteni paper) ; update aim.5l_cs output.
1301    o New variable in PARM03 for more flexible pickups
1302    o somewhat cleaned package initialisation sequence for
1303      ctrl/ cost/ ecco/ in packages_... routines
1304    
1305    checkpoint50g_post
1306    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1307      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1308      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1309        made the default because of faster convergence than ADI
1310    
1311    checkpoint50f_post
1312    o exf totally restructured
1313      - replaced all exf_set_ routines by one generic exf_set_gen.F
1314        and made sure it's still differentiable
1315      - split exf_getffields.F into new exf_bulkformulae.F
1316      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1317      - updated adjoint/makefile and relevant verif. accordingly
1318    
1319    checkpoint50f_pre
1320     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1321          + change Evap over land. (update aim.5l_cs output)
1322     o added missing .cvsignores and made uniform across expts
1323     o changed configuration of tidal_basin_2d expt
1324     o added pkg/debug functions for tracing code in fatal crashes
1325     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1326     o new fn in pkg/monitor to stop model if solution grows too big
1327     o removed lots of single quotes from comments
1328    
1329    checkpoint50e_post
1330    o make KPP work with PTRACERS
1331     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1332       nearly a copy of kpp_transport_s
1333     - there is no analogue to SurfaceTendencyS, so I have to use
1334       gPtr(of the surface layer) instead
1335    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1336    checkpoint50e_pre
1337    
1338    checkpoint50d_post
1339    o change kpp output from multiple-record state files to single-record state
1340      files analogous to write_state.F
1341    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1342      analogous to the cg2d-related output.
1343    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1344      so that writing to internal file fn (with length 512) fails.
1345    checkpoint50d_pre
1346    
1347    checkpoint50c_post
1348    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1349    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1350    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1351    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1352    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1353    
1354    checkpoint50c_pre
1355    Merging from release1_p13:
1356    o bug fix for pkg/seaice dynamic solver
1357    o Added SEAICE_initialHEFF to pkg/seaice
1358    
1359    checkpoint50b_post
1360    o store u*,v* in gU,V instead of in guNm1,gvNm1
1361    o in order to put the momForcing out of the Adams-Bashforth:
1362      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1363      to timestep.F
1364    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1365    o re-generate output for highly sensitive test-exp:
1366       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1367    
1368    checkpoint50b_pre
1369    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1370    o corrected CPP option mismatch in exf_Bulk... functions for case
1371      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1372    
1373    checkpoint50a_post
1374    o Bug fix for merging between c50 and KPP.
1375      ikey was passed from thermodynamics to kpp_calc via
1376      common block rather than being recomputed in kpp_calc,
1377      in contradiction with new key itdkey.
1378      New key ikppkey created, and tamc.h headers updated.
1379    
1380    checkpoint50
1381    - 2nd step of merge with ecco-branch:
1382      merge changes in ecco-branch back into main trunk
1383    - bug fix in find_alpha
1384    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1385    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1386    - merged some sliced AD support routines
1387    
1388    checkpoint49
1389    merged from ecco-branch:
1390    o exf:
1391      - Enable initialisation of forcing fields to constant
1392        (runtime) values.
1393      - in exf_getffields.F
1394        Reduce i-/j-loop to interior domain, discarding overlaps.
1395        That also fixes wrong TAF-key computations for key_1, key_2
1396        with bulf formulae.
1397      - exf_init.F modify #ifdef for exf_init_evap
1398      - exf_getffieldrec.F, ctrl_getrec.F
1399        The following INT-usages are not safe:
1400          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1401          fldcount = int(fldsecs/fldperiod) + 1
1402        and were modified.
1403    o autodiff: checkpoint_lev...
1404      - updated storing for bulk formulae (some arrays were missing)
1405      - added state for seaice package
1406      - synchronized with main branch
1407    o DIVA:
1408      Modif.s in
1409      - the_main_loop.F
1410      - the_model_main.F
1411      and added cost_final_restore.F cost_final_store.F
1412      o With these changes, it is possible to fully separate
1413        the first forward run to compute the cost function (mdthe_main_loop)
1414        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1415        into separate model executions.
1416        This enables better tuning of DIVA to given queue sizes.
1417      o Loss of cost function value in consecutive DIVA runs is
1418        fixed by storing to 'costfinal' file.
1419      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1420        beginning/end of adjoint integration is accounted for.
1421      The current changes apply to TAF-1.4.26.
1422      TAF has one remaining bug, requiring one manual change
1423      (see MITgcm manual).
1424    o cal: synchronized between MAIN and ecco-branch
1425    
1426    checkpoint48i_post
1427    o Changes to restore differentiability of code w.r.t. previous tag
1428      (mostly adding new routines to make list and replacing
1429      pressure by totPhiHyd).
1430    o Updated and merged grdchk package
1431      - has both ADM and TLM checks
1432      - works for single- and multi-proc.
1433      - output cleaned
1434      - worked successfully for parallel DIVA
1435    o genmake:
1436      - Adding -platform=SP4
1437      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1438    o Modif. for DIVA:
1439      ctrl_unpack should not be called in intermediate DIVA interval.
1440      (similar thing would apply for active files such as
1441      tbar, sbar, psbar, which should not be reinitialised;
1442      only relevant for ecco-branch)
1443    
1444    checkpoint48h_post
1445    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1446    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1447    o Added SEAICE_initialHEFF to pkg/seaice
1448    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1449    
1450    checkpoint48g_post
1451    --- EOS:
1452    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1453      store total Potential in totPhyHyd for diagnostics & EOS.
1454    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1455    --- Pressure/geopotential gradient:
1456    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1457    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1458      ( changes results of global_ocean_pressure )
1459    o NLFS + z-coord.: add eta*Rho' contribution.
1460    o accurate phiHyd when using interface-W at the middle between 2 centers
1461     ( changes results of ideal_2D_oce )
1462    o includes r* 2nd term in potential gradient.
1463    
1464    checkpoint48f_post
1465    Merging from release1_p12:
1466    o Modifications for using pkg/exf with pkg/seaice
1467      - improved description of the various forcing configurations
1468      - added basic radiation bulk formulae to pkg/exf
1469      - units/sign fix for evap computation in exf_getffields.F
1470      - updated verification/global_with_exf/results/output.txt
1471    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1472      (SBO) core products, including oceanic mass, center-of-mass,
1473      angular, and bottom pressure (see pkg/sbo/README.sbo).
1474    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1475      to avoid negative values in shallow regions.
1476      - updated verification/natl_box/results/output.txt
1477      - updated verification/lab_sea/results/output.txt
1478    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1479    o Added useSingleCpuIO option (see PARAMS.h).
1480    o Updated useSingleCpuIO option in mdsio_writefield.F to
1481      work with multi-field files, e.g., for single-file pickup.
1482    o pkg/seaice:
1483      - bug fix in growth.F: QNET for no shortwave case
1484      - added HeffFile for specifying initial sea-ice thickness
1485      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1486    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1487      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1488    o pkg/seaice:
1489      - adjoint-friendly modifications
1490      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1491    
1492    checkpoint48e_post
1493    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1494    o dynamics: change definition of computational domain & adapt mom_fluxform
1495      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1496    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1497        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1498        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1499        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1500        inverted_barometer solid-body.cs-32x32x1
1501      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1502    
1503    checkpoint48d_post
1504    o in preparation for r*:
1505     a) use pre-computed gradient of hydrostatic potential:
1506        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1507     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1508        => affects results of glob_oce_pressure (different truncation error)  
1509      update output.txt of ideal_2D_oce & global_ocean_pressure
1510    
1511    checkpoint48d_pre
1512    o in preparation for r*:
1513      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1514      pass the 2 comp. of the grad. as arguments to momentum S/R.
1515      but for the moment, only used if it does not change the results.
1516    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1517    
1518    checkpoint48c_post
1519    Modifications in treatment of initial flux forcing controls
1520    to avoid extra storing of flux fields.
1521    
1522    checkpoint48c_pre
1523    o Added tidal_basin_2d experiment (currently 1D!)
1524    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1525    
1526    checkpoint48b_post
1527    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1528     (modification to pressure gradient not yet implemented)
1529    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1530      (for U & V) that are used for vertical advection of momentum.
1531    
1532    checkpoint48a_post
1533    o In preparation for r*, use temp. array to compute vertical transport
1534       in flux-form momentum pkg. => change results of few test-exp.
1535      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1536                        lab_sea, natl_box & plume_on_slope
1537    
1538    checkpoint48
1539    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1540    
1541    checkpoint47j_post
1542    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1543    o moved adexch from forward_step to addummy_in_stepping
1544    o added exch in ctrl_map_...
1545    o aveFreq.=0. at end of cost_final to avoid overwrite in
1546      reverse checkpointing loop
1547    o Yet more changes in gmredi:
1548      * adgmredi_calc_tensor
1549        avoiding all recomputation of gmredi_slope_limit
1550      * adgmredi_x/y/rtransport
1551        added flag for excessive storing to avoid recomp. of
1552        u/v/rtans, dTdx/y/z
1553        -> this is not really necessary and very memory-consuming
1554      * adgmredi_slope_psi:
1555        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1556      * gmredi_slope_limit
1557        re-activated full calculation of taperfct for case 'ac02'
1558    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1559    
1560    checkpoint47i_post
1561    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1562    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1563      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1564    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1565    o gmredi: fix few bugs.
1566    
1567    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1568    This will be a good checkpoint to plug into the ecco-branch.
1569    o few modif.'s to get latest version adjointed
1570      (mainly kick out code in ini_linear_phisurf)
1571    o modif's to run adjoint with exactConserv
1572    o case GM_BOLUS_ADVEC should be cleaned
1573      S/R gmredi_slope_psi should be cleaned
1574    o verification/carbon now has exactConserv=.TRUE.
1575    
1576    checkpoint47g_post
1577    o time-average AIM output: becomes independent from statvars time-average
1578      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1579    o After TAF bug fix:
1580      Tested adjoint of gmredi package.
1581      Tests were done with checkpoint47 rather than with latest
1582      checkpoint47f_post since the latter is broken for the adjoint
1583      verification/carbon/ contains both ADM and TLM gradient checks.
1584    Here they are, before they get changed/lost/stolen.
1585    Mostly modif.'s to fix numerical sensitivities.
1586    Gradient checks OK for
1587    - GM_taper_scheme:
1588      * clipping
1589      * ac02
1590      * linear
1591      * glw91
1592      * dm95
1593      * ldd97
1594    - GMREDI_OPTIONS:
1595      * GM_VISBECK_VARIABLE_K
1596      * GM_NON_UNITY_DIAGONAL
1597      * GM_EXTRA_DIAGONAL
1598      * GM_BOLUS_ADVEC
1599    in conjunction with data.gmredi parameters to be checked in
1600    in a few minutes under verification/carbon/code/
1601    
1602    checkpoint47f_post
1603    Merging from release1_p10:
1604    o modifications for using pkg/exf with pkg/seaice
1605      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1606        and SEAICE_EXTERNAL_FLUXES
1607      - pkg/exf CPP options EXF_READ_EVAP and
1608        EXF_NO_BULK_COMPUTATIONS
1609      - usage examples are Experiments 8 and 9 in
1610        verification/lab_sea/README
1611      - verification/lab_sea default experiment now uses
1612        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1613    
1614    checkpoint47e_post
1615    o created a tag prior to creating a branch
1616    
1617    checkpoint47d_post
1618    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1619      at the bottom boundary had an erroneous half slip boundary condition
1620    o added bottom drag and no slip boundary condition capabilities to
1621      oceanic pressure coordinates code
1622    o added new verification experiment global_ocean_pressure, this experiment is
1623      also described in the tutorial section of the manual
1624    checkpoint47d_pre
1625    
1626    checkpoint47c_post
1627    o Added a verification experiment for a global cubed-sphere ocean run
1628      -  verification/global_ocean.cubed32x32x30
1629      -  uses pkg/therm_seaice and pkg/bulk_forcing
1630    
1631    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1632    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1633      when using P-coordinate; only implemented for atmospheric config.
1634    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1635      NOTES: requires option NONLIN_FRSURF to be "#define".
1636    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1637    
1638    checkpoint47b_post
1639    Merging from release1_p9:
1640    o pkg/seaice
1641      - removed GOTO's and added taf directives
1642      - double precision constants to reduce the g77 (Linux)
1643        to F77 (SGI) differences reported in release1_p8
1644    o tools/genmake
1645      - added SGI options
1646    o verification/testscript
1647      - updated to that of checkpoint47a_post
1648    o verification/global_ocean.90x40x15/input/eedata
1649      - modified for SGI f77 compatibility
1650    o verification/lab_sea
1651      - added description of sea-ice model
1652      - added missing matlab routines
1653      - added test of thermodynamics parallelization
1654    
1655    checkpoint47a_post
1656    o new pkg: aim_v23
1657     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1658       for now, keep the same surface forcing as before.
1659     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1660     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1661     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1662    o add diagnostic of surface correction term in monitor output
1663    
1664    o bulk_force and therm_seaice
1665    - Two packages:  bulk_force (Bulk forcing)
1666      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1667    - Earlier integration from Stephaine Dutkiewicz
1668      and Patrick Heimbach.
1669    - Two ifdef statements for compile time,
1670       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1671    
1672    checkpoint47
1673    differentiable version of checkpoint46n_post
1674    o bug fix in quasihydrostaticterms
1675    o * "clean" adjoint code (in terms of extensive recomputations)
1676        can now be obtained for all GMREDI options (i.e. for
1677        - GM_VISBECK_VARIABLE_K
1678        - GM_NON_UNITY_DIAGONAL
1679        - GM_EXTRA_DIAGONAL
1680        - GM_BOLUS_ADVEC )
1681      * However, wrong gradient check problem remains unsolved.
1682      * New CPP options have been introduced for different
1683        tapering schemes
1684    o external_fields_load now part of differentiation list
1685    o pressure needs multiple storing;
1686      would be nice to have store_pressure at beginning or
1687      end of forward_step, e.g. by having phiHyd global (5-dim.)
1688      (NB: pressure is needed for certain cases in find_rho,
1689      which is also invoked through convective_adjustment).
1690    o recomputations in find_rho for cases
1691     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1692    o #define ATMOSPHERIC_LOADING should be differentiable
1693    o ini_forcing shifted to begining of initialise_varia
1694    o Incorporating QNVS line search routines into MITgcm
1695      (this is separate code, and therefore not under pkg)
1696      lsopt/, optim/
1697    o Updated verification/carbon/
1698      - #define GM_VISBECK_VARIABLE_K
1699      - GM_taper_scheme    = 'ldd97'    
1700    
1701    checkpoint46n_post
1702    Merging from release1_p8:
1703    o verification/natl_box:
1704      updating new external_fields_load routine
1705    o New package: pkg/seaice
1706      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1707      The sea-ice code is based on Hibler (1979-1980).
1708      Two sea-ice dynamic solvers, ADI and LSR, are included.
1709      In addition to computing prognostic sea-ice variables and diagnosing
1710      the forcing/external data fields that drive the ocean model,
1711      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1712      The implied surface heat flux is then stored in variable
1713      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1714      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1715      non-local transport term.  Because this call precedes model
1716      thermodynamics, temperature under sea-ice may not be "exactly" at
1717      the freezing point by the time theta is dumped or time-averaged.
1718      N.B.: fairly large differences in accuracy occur across
1719            different platforms/compilers; comparison between
1720            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1721            generated output gives:
1722       T           S           U           V
1723      C D M    c        m  s        m  s        m  s        m  s
1724      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1725      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1726      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1727    
1728      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1729    o GAD:
1730      - generated new common blocks to account for call of
1731        same gad routines with differing traceridentities
1732        (needed to modify tracerIdentity indices in GAD.h)
1733      - generated separate common blocks for case useCubedSphereExchange
1734        (Department of Futurology)
1735      - parameter lists to gmredi_?transport: added tracerIdentity
1736      - added new key indices to tamc.h
1737    o external_fields_load:
1738      - added this routine to TAF list
1739      - needed to make some common blocks global and additional storing
1740        along the same lines as exf package (checkpoint_lev?_directives.h)
1741    o exf:
1742      updated external forcing package
1743      - bug fixes carried over from ecco-branch
1744        (missing OBCS_OPTIONS.h in two routines)
1745      - enable easy to use "no forcing".
1746      - added exf I/O for atmospheric loading
1747      - added exf I/O for runoff data
1748      - transfered scaling between exf <-> MITgcm to exf namelist
1749    o Adding new verification experiment global_with_exf.
1750      This verification experiment is almost identical to the
1751      global_ocean.90x40x15 experiment, except that it uses
1752      the exf (and cal) package instead of the
1753      external_fields_load routine (cf README file).
1754    
1755    checkpoint46m_post
1756    o modified testscript to return -- when there are no lines of "%MON" output
1757    o added new flag "quasiHydrostatic" for QH mode
1758      and new routine quasihydrostaticterms()
1759    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1760      New routine: mom_u_coriolis_nh()
1761    o fixed sign of non-hydrostatic metric terms in u and v equations.
1762      Depend on correct sign of gravitySign.
1763    o added work.pc* to .cvsignore in aim directories using ifc
1764    o introduced flag for controllin non-hydrostatic metric terms
1765    o removed gravitySign from PARM04
1766    o switched to g77/ifc from pgf77 in aim experiments
1767    
1768    checkpoint46l_post
1769    o made convective adjustment work with pressure coordinates:
1770     - changed the direction of k-loop in convective_adjustment.F for the
1771       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1772     - adjusted the reference pressure k-index in convective_adjustment.F
1773     - adjusted the convection condition in convect.F (in analogy to
1774       calc_ivdc.F)
1775     - convective_adjustment no longer computes anything on the halos
1776     - removed the warnings about negative salinity from find_rho.F and
1777       find_alpha.F; instead the new routine look_for_neg_salinity, called
1778       at the beginning of find_rho, find_alpha, and find_beta, does a
1779       check of the entire slice, if CPP-option
1780       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1781    checkpoint46l_pre
1782    
1783    checkpoint46k_post
1784    o fixed the verification/global_ocean.90x40x15 experiment:
1785     - new bathymetry (the world according to A., JMC, and M.)
1786     - new initial fields and forcing fields (*.bin files)
1787     - new POLY3.COEFFS (for the next release one should switch to a full
1788       equation of state: JMD95P or MDJWF)
1789     - fixed several errors and redundancies in the data file
1790     - experiment uses looped cells
1791     - added matlab directory with diagnostic scripts for plotting of output
1792    
1793    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1794     - read AIM physics parameters from a file (data.aimphys)
1795     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1796    
1797    checkpoint46j_post
1798    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1799    o move wVel computation at the end of the time step, in S/R integr_continuity
1800    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1801    o update timeave pkg for wVel diagnostic.
1802    checkpoint46j_pre
1803    
1804    checkpoint46i_post
1805    o Clean up AIM package (and keep the results unchanged):
1806      include CPP_OPTION and use IMPLICT NONE in all routines ;
1807      declare all the variables _RL ; use _d 0 for all numerical constants.
1808      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1809    
1810    checkpoint46h_post
1811    o cleaned up the use of rhoNil and rhoConst.
1812      - rhoNil should only appear in the LINEAR equation of state, everywhere
1813        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1814        and the dynamical equations are all divided by rhoConst
1815    o introduced new parameter rhoConstFresh, a reference density of fresh
1816      water, to remove the fresh water flux's dependence on rhoNil. The default
1817      value is 999.8 kg/m^3
1818    o cleanup up external_forcing.F and external_forcing_surf.F
1819      - can now be used by both OCEANIC and OCEANICP
1820    checkpoint46h_pre
1821    
1822     Added code to convert surface volume flux (fresh water) into
1823     a mass flux when using P coordinates in the ocean (OCEANICP).
1824     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1825    
1826    checkpoint46g_post
1827    o Include a new diagnostic variable phiHydLow for the ocean model
1828      - in z-coordinates, it is the bottom pressure anomaly
1829      - in p-coordinates, it is the sea surface elevation
1830      - in both cases, these variable have global drift, reflecting the mass
1831        drift in z-coordinates and the volume drift in p-coordinates
1832      - included time averaging for phiHydLow, be aware of the drift!
1833    o depth-dependent computation of Bo_surf for pressure coordinates
1834      in the ocean (buoyancyRelation='OCEANICP')
1835      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1836        Theta, Salinity, and Pressure in the parameter list. This routine is
1837        presently contained in find_rho.F. This routine does not give the
1838        correct density for 'POLY3', which would be a z-dependent reference
1839        density.
1840    o cleaned up find_rho
1841      - removed obsolete 'eqn' from the parameter list.
1842    o added two new verification experiments: gop and goz
1843      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1844    checkpoint46g_pre
1845    
1846    checkpoint46f_post
1847    o Enable tangent linear (forward mode) gradient checks:
1848      - extended active file handling to g_... files
1849      - added TANGENT_SIMULATION to theSimulationMode
1850      - extended grdchk package accordingly
1851    o added tangent linear setup in verification/carbon/code_ftl
1852    o added adjoint setup in verification/front_relax/code_ad
1853    
1854    checkpoint46e_post
1855    o Added new equation of state -> MDJWF
1856      - EOS of McDougall et al., 2002, JAOT, submitted
1857      - caveat: the equation of state is only valid for a smaller (more
1858        realistic?) range of values than JMD95P/Z and UNESCO
1859      - added masks to the calculation of pressure in store_pressure
1860      - added more check values for density in check_eos (ini_eos.F), some of
1861        the old check values are out of the range of the MDJWF-eos, so don't
1862        expect perfect matches for those
1863    checkpoint46e_pre
1864    
1865    checkpoint46d_post
1866    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1867      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1868      case of pressure coordinates. eosType='JMD95Z' in
1869      combination with buoyancyRelation='OCEANICP' now causes an error.
1870    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1871      in find_alpha/beta.
1872    checkpoint46d_pre
1873    
1874    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1875      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1876    
1877    checkpoint46c_post
1878    o Changes necessary for ocean in p-coordinates
1879     -  Added new buoyancy relation = 'OCEANICP'
1880     -  Added new parameters = gravitySign (this used to be contained inside
1881        the factor dRdZ which I added when we first switched to R coordinates).
1882     X GM/Redi is not compatible (yet)
1883     X bottom drag and no-slip need to be debugged.
1884    checkpoint46c_pre
1885    
1886    checkpoint46b_post
1887    o Added new equation of state -> JMD95Z and JMD95P
1888      - EOS of Jackett and McDougall, 1995, JAOT
1889      - moved all EOS parameters into EOS.h
1890      - new routines ini_eos.F, store_pressure.F
1891    o Added UNESCO EOS, but not recommended because it requires
1892      in-situ temperature (see JMD95)
1893    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1894      unesco.f to be used with POLY3
1895    checkpoint46b_pre
1896    
1897    checkpoint46a_post
1898    o Added (atmospheric) pressure loading
1899      - new field in FFIELDS.h, etc...
1900      - new cpp flag ATMOSPHERIC_LOADING
1901    o Changed hFacC to _hFacC in calc_phi_hyd.F
1902    o Added SHORTWAVE_HEATING to some files for consistency
1903    checkpoint46a_pre
1904    
1905    checkpoint46
1906    further merges from release1_p5
1907    o new ctrl package
1908      - adopted from ECCO environment to enable optimization
1909      - added Eliassen Palm fluxes to controls
1910    o added Eliassen Palm flux controls to gradient check package
1911    o cost package
1912      - Compatible with new ctrl package
1913      - added Eliassen Palm cost hooks
1914      - modif's of existing cost functions
1915    o Adjoint-related bug fixes in kpp:
1916      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1917      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1918    o autodiff package
1919      - flow directives:
1920        + new for S/R do_the_model_io
1921        + enhanced for S/R checkpoint
1922        + new gmredi.flow
1923      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1924        disable adcommon.h/g_common.h by default.
1925      - fixed problem for adjoint of global_max
1926    o modified verification/carbon/
1927    o New setup for adjoint of global_ocean
1928    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1929    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1930    o incorporated hooks for sponge layer code (external_forcing.F)
1931    
1932    checkpoint45d_post
1933    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1934    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1935      (affects plume_on_slope "cg2d" output)
1936    o add new parameter deltaTfreesurf for free-surface time stepping
1937    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1938    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1939    o change phiMin in exp1 (to agree with documentation)
1940    o add new flags:
1941     - T,S forcing inside/outside Adams-Bashforth
1942     - turn off temp,salt advection and/or forcing
1943     - for each tracer, define internal flag for multiDimAdvection & A-B
1944    o monitor: change definition of KE to check conservation of Energy
1945    
1946    checkpoint45c_post
1947    o Removed f90 comments ("!")
1948    o Modified initialisations to enable exf package for MITgcm
1949      (without invoking ECCO_PACKAGE).
1950    o modifications to gradient check package (Martin Losch)
1951      - enable centered differences
1952      - modified format of standard output
1953    
1954    checkpoint45b_post
1955    o cleaned exchange calls in cg2d
1956    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1957    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1958      to configure barotropic setup (Martin Losch)
1959    o moved some initialisations within bi,bj loop in dynamics
1960      (TAF flow dependency)
1961    o in initialise_varia, moved call packages_init_variables
1962      before convective_adjustment_init
1963      (corresponding adjustment of TAF tape initialisation).
1964    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1965    
1966    checkpoint45a_post
1967    o compute Rho over the whole domain (extend iMin,jMin indices)
1968    o specific exchange for X-slice domain (case Ny=1)
1969    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1970    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1971    
1972    checkpoint44h_post = checkpoint45
1973    o Fix to restore differentiability:
1974      place at which packages_init_variables is called in
1975      initialise_varia is crucial for reverse control flow.
1976    o modifications in GMRedi to enable stable adjoint
1977      (corresponding modif's in thermodynamics, dynamics)
1978    o added missing hook for sponge layer code in external_forcing
1979    o modified test cost functions
1980    o storing in gad_advection (plus removal of write(0,*)!
1981    o missing headers TR1.h added in convective_adjustment routines
1982    o errorMessageUnit set non-equal zero in eeboot
1983      (conflict on some platforms, e.g. IBM SP3)
1984    o modified carbon verif.
1985    
1986    checkpoint44h_pre
1987    o vertical grid option: allow to put the Interface at the middle between
1988      2 cell-centers ; replace delZ in pkg/kpp by drF.
1989    o GM Advective form: Tracers are advected using the residual transport (=
1990      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1991    
1992    checkpoint44g_post
1993    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1994      results) ; ifdef missing in thermodynamics.F
1995    
1996    checkpoint44f_pre,checkpoint44f_post
1997    o added PTRACERS package
1998      This allows an arbitrary number of passive tracers to be integrated
1999      forward simultaneously with the dynamicaly model.
2000      + Implemented so far:
2001        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2002        - I/O and checkpointing
2003        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2004      + Not implemented so far:
2005        - KPP
2006        - OBCS
2007      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2008        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2009        line in data.pkg.
2010      + This package is disabled by default since it increases storage.
2011    
2012    
2013    o testscript: added -cleanup option
2014    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2015                 b) enable to filter 2D fields.
2016    
2017    checkpoint44e_pre,post
2018    o re-wrote convective adjustment to use pre-calculated weights
2019      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2020      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2021      Original calls to convect() still in place.
2022    
2023    chkpt44d_pre,post
2024    o added missing EXCLUDE_MONITOR flags
2025    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2026      (incompatible typ in MIN/MAX expressions caused problems
2027      on IBM SP3)
2028    o in genmake added variable MAKEDEPEND
2029      plus resetting for case SunOS
2030    o added timer_stats.c routine for IBM SP3
2031    o removed variables in dynamics
2032    !!! I forgot to create tag chkpt44d_pre !!!
2033    !!! But chkpt44d_pre = chkpt44c_post    !!!
2034    
2035    o real fresh water flux implemented with non-linear free-surface.
2036    
2037    chkpt44c_pre,post
2038    o few fix (mask in shap_s2, EmPmR in external_field_load,
2039      USE_NATURAL_BCS in solve_for_P);
2040    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2041    
2042    checkpoint44b_pre/_post
2043    o merge of relevant stuff from the ecco-branch:
2044      - genmake: removed $S64 overwrite for case SunOS
2045      - pkg/exf: update and corrections for field swapping and obcs
2046      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2047                  harmonized between ECCO and MITgcm
2048      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2049                      updated checkpointing_lev... lists for obcs
2050      - model/src: minor changes in forward_step, plot_field
2051                   added directive for divided adjoint in the_main_loop
2052      - pkg/mdsio: added mdsio_gl_slice
2053    
2054    o check parameters & config (chkpt44a_pre,post)
2055    o OBC and NonLin_FrSurf.
2056    
2057    checkpoint44
2058    o fix bug in mom_vi_del2uv
2059    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2060    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2061    o update AIM experiments (NCEP input files)
2062    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2063    o added some stuff for AD
2064    
2065    checkpoint43
2066    o added two new advection tests
2067    o added global 4x4 degree ocean test
2068    o added test of H&S94 with free surface on cube
2069    o some final mods for gradient check, adjoint,...
2070    
2071    checkpoint42
2072      Fixed AD-related problems:
2073    o Store directives up-to-date with re-arranged Adams-Bashforth
2074      (mainly thermodynamics.F)
2075    o New store directives for multi-dim. advection schemes
2076      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2077      * new common block and key passkey
2078      (mainly gad_advection.F)
2079    o Modified store directives for split of dynamics/thermodynamics
2080      for the case ALLOW_KPP
2081    o Cleaned argument list for timestep_tracer.F
2082    
2083    checkpoint41
2084    o re-formatted/added comments in prologues of key subroutines
2085      to work with protex
2086    
2087    checkpoint40
2088    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2089    o added FLT (floats) package from Arne along with demo. experiment
2090    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2091      implementation of forward-in-time forcing terms
2092    o more mods for non-linear free-surface including new variable
2093    o modified multi-dim method to work on cube
2094    o bug fix in KPP (from DM)
2095    
2096    checkpoint40pre9
2097    o added DST advection schemes
2098    o fix MPI bug on SGI's
2099    o modifications for non-linear free-surface
2100    o fixed conditionals for fixed flow/passive tracer only mode
2101    o added tension/strain form of stress tensor
2102    o changes to commenting of arguments for TAF/TAMC
2103    o added/updated many matlab scripts
2104    o added multi-dimensional advection method for tracers
2105      
2106    checkpoint40pre8
2107    o new package rw/
2108      Added method for dumping intermediate local arrays:
2109      mdsio_writetile - same as mdsio_writefield except works from inside
2110                        bi,bj loop
2111      mdsio_writelocal - same as mdsio_writetile except works for local
2112                         arrays
2113      write_local_r? - higher-level wrapper for mdsio_writelocal
2114      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2115      Example given at end of mom_vecinv.F that dumps some local arrays.
2116    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2117      control flux-form versus vector invariant code.
2118      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2119      or genmake -DISABLE ...
2120    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2121      (additional storing is now needed for case vecinv;
2122      currently nothing implemented to switch this storing off
2123      in case fluxform is used since no CPP flag available).
2124    
2125    checkpoint40pre7
2126    o bug fix in dynamics.F
2127      calc_viscosity called before k=1,Nr loop.
2128    o added some #ifdef's ALLOW_PASSIVE_TRACER
2129    o cleaned initialisations in ctrl_map_ini
2130      related to TAF
2131    
2132    checkpoint40pre6
2133    o split dynamics into thermodynamics & dynamics
2134    o corresponding split of calc_diffusivity into
2135      calc_diffusivity, calc_viscosity
2136      (kpp_calc_diff, kpp_calc_visc).
2137    o Added diffkr, kapgm to control variables
2138    o bug fix in gmredi_slope_limit for ldd97
2139    
2140    checkpoint40pre5
2141    o proper initialization of Adams-Bashforth time stepping
2142      + uses forward step for very first step of model (iter=0)
2143    o re-generated *all* output since almost all output is modified by this
2144      change (sorry but we've been putting this one off for about 2 years)
2145      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2146        *not* regenerated since they are already out of date and I don't
2147        want to create the impression that they are suddenly working.
2148    o removed KAP stuff for DEC's
2149    o modified/added many .cvsignore files in */code and */input
2150    o added new expt "solid-body.cs-32x32x1"
2151      + this uses an alternative form of ini_curvilinear_grid.F which
2152        is not necessarily any better than the current one...
2153    
2154    checkpoint40pre4
2155    o added re-initialisations of utrans,vtrans,rtrans in
2156      calc_common_factors which are crucial for TAF.
2157    o extended iMin,jMin range for calc_common_factors,
2158      calc_diffusivity
2159    o added option ALLOW_PASSIVE_TRACER
2160    o a few minor updates and fixes
2161    
2162    checkpoint40pre3
2163    o created calc_gtr1.F for gad package
2164    o split the_main_loop and re-introduced forward_step
2165    o some recomputations of nIter0 for TAMC
2166    
2167    checkpoint40pre2
2168    o Updated to latest branch of AJA, JMC
2169    o Added gradient check package
2170    o Added routines for passive tracer handling
2171    o Added carbon sequestration sensitivity experiment
2172    
2173    checkpoint39
2174     o Modifications and fixes to support TAMC
2175       (mainly missing or wrong directives)
2176     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2177       in addummy_in_stepping
2178     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2179     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2180     o Included following packages:
2181       cal: calendar
2182       exf: external forcing
2183       ecco: essential routines to control use of cal, exf
2184             (NB: this is not the full ECCO environment)
2185     o disabled some packages by default in genmake
2186    
2187    checkpoint38
2188     o see notes_c37_adj.txt
2189     o corrected wrong layer index in external_forcing_t
2190     o replaced the_main_loop/forward_step by the_main_loop
2191     o removed forceoutput from write_state
2192       (replaced criteria for initial/final state)
2193     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2194    
2195    checkpoint37
2196     o mdsio.F routine split and packaged in pkg/mdsio
2197       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2198        used unless genmake -disable=mdsio)
2199     o allow a more precise surface-geopotential gradient for the atmosphere
2200       taking into account the change in space of Alpha (=1/rho) at the surface.
2201     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2202       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2203     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2204       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2205       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2206     o Time-Average diagnostics defined as a pseudo package "timeave".
2207     o pickup files : old pickup (before c35) did not work with new code (c35
2208       and after) unless activating 2 commented lines in initialise-varia.
2209     o Non-Hydrostatic pickup file Pb fixed.
2210     o bug with Rigid-lid version (since c35) fixed.  
2211    
2212    checkpoint36
2213     o implement Crank-Nickelson barotropic time-stepping
2214     o recover Time-Average diagnostics
2215     o fix Pb in checkpoint (PR#19)
2216     o AIM become a standard package ; clean unused CPP_kees
2217    
2218    checkpoint35
2219     o subtantial rewrite of dynamics.f
2220     o allows staggered time-stepping
2221     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2222     o added bottom drag (linear + quadratic)
2223    
2224    checkpoint34
2225     o Modified exchange routines for correct reverse simulation.
2226     o Added verification output to comply with bug fix in impldiff.F
2227       as of c33 (exp2, natl_box).
2228     o Corrected store directives in dynamics.F
2229     o Corrected array boundaries in impldiff.F
2230     o Corrected array dimensions in gmredi.
2231       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2232     o Added routine GLOBAL_SUM_INT to global_sum.F
2233     o Added mdsio_gl.F for ECCO purposes.
2234    
2235    checkpoint33
2236     o Fixed bug in lower BC in impldiff.F
2237     o Fixed confusion about units of forcing arrays in FFIELDS.h
2238       namely Fu,Fv,Qnet,Qsw,EmPmR:
2239       - Removed verification/natl_box/code/external_fields_scale.F
2240         (did not differ from that in model/src)
2241       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2242         (see FFIELDS.h for description)
2243       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2244         kpp_calc.F and kpp_transport_t.F
2245       - Removed model/src/external_fields_scale.F and calls to it
2246       - verification/natl_box uses flux data with "atmospheric" sign so
2247         a special version of external_fields_load.F is used to
2248         change the data as it's read in. This way, the arrays
2249         have the right units and signs at all times tha a user could
2250         possibly use them.
2251     o Corrected genmake to delete a temporary file during configuration
2252    
2253    checkpoint32
2254     o Scaling of forcing fields moved from external_forcing.F to
2255       external_fields_scale.F, called directly after loading fields.
2256     o Surface relaxation terms added to surface tendency fields in
2257       extra subroutine.
2258     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2259       fields.
2260     o Changes in GMRedi to comply with packaging structure.
2261     o Modifications and bug fixes in KPP package.
2262     o Verification experiment for KPP added (verification/nat_box/)
2263    
2264    checkpoint31
2265     o Packages interface brought in line with defined standard
2266       -> new routines packages_...F
2267       -> changes in initialise_fixed.F, initialise_varia.F
2268       -> enables initialisation interface for ECCO package
2269     o Rescaling of external forcing fields immediately after read
2270       (removed from external_forcing.F)
2271       -> new: surface_fields_scale.F
2272       -> affects ini_foorcing.F, external_fields_load.F
2273     o Computation of surface tendencies before tendency updates.
2274       -> new: external_forcing_surf.F
2275     o Change of variable names useGMRedi, useKPP, useECCO
2276     o Further changes in dynamics.F, impldiff.F for TAMC
2277     o Tested for experiments 0, 2, 4.
2278       - not yet tested for GMRedi.
2279       - not yet tested for KPP.
2280    
2281    checkpoint30
2282     o Updates for OBCs
2283     o New experiment for test OBCs (internal_wave)
2284     o New output.txt in verification/exp4/results/
2285     o Updates for KPP: calculation of viscosity corrected, new variables
2286       kpp_dumpFreq and kpp_taveFreq
2287     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2288       and entry for T90 in genmake
2289    
2290    checkpoint29
2291     o packaged KPP and GM/Redi
2292    
2293    checkpoint28
2294     o Corrected initialization of hFacMin for difference vertical coordinates
2295     o Modified calculation of partial cell thickness to more robust algorithm
2296     o config_summary.F: replaced write_1D_... by write_0D_...
2297       read_write.F: added subroutines write_0D_...
2298     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2299       included some initialisations required for TAMC.
2300     o routine calc_isoslopes: modified sqrt computation to make it
2301       differentiable for zero argument.
2302     o routines dynamics, impldiff:
2303       included store directives and tape key computations required for TAMC.
2304     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2305    
2306    checkpoint27
2307     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2308       formulation works properly with variable resolution.
2309     o restructured the calling tree between the_model_main() and dynamics()
2310     o split initialise() into initialise_fixed() and initialise_varia()
2311     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2312       in new routine ini_psurf()
2313    
2314    checkpoint26
2315     o moved some #ifdef in optional routines to encompass everything
2316       except the argument declarations. This was using up some memory.
2317     o fixed macros like _ADT to work with both versions of Linux cpp
2318     o cleaned up some unused and uninitialized variables
2319       (helps when debugging with strict compile options)
2320     o split up CPP_EEOPTIONS.h into options and macros
2321       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2322     o patch for 2 processor JAM mode
2323    
2324    checkpoint25
2325     o updates for OBCs and NH
2326     o dramatically reduced memory usage
2327     o added "JAM" routines for use on Artic network
2328     o parameterization of convection by implicit vertical diffusion
2329     o added a diagnostic of convective index
2330     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2331       (this is was partly for OBCs and NH but also in anticipation of
2332        an explicit free-surface option)
2333     o initial state input files for U and V
2334    
2335    checkpoint24
2336     o Removed some spurious "REAL"s
2337     o Updated KPP to latest version from JPL
2338     o Added a COS(latitude) in horizontal viscosity
2339    
2340    checkpoint23
2341     o Added del^4 diffusion for salt and temperature
2342     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2343    
2344    checkpoint22
2345     o Made many small changes: implicit none, format(i5), etc...
2346     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2347    
2348    checkpoint21
2349     o Introduced new I/O package that supports direct-access records (mdsio.F)
2350     o Split-up mid-level I/O routines
2351     o Updated input data for experiments 0,1,2,4 and 5
2352     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2353    
2354    checkpoint20
2355     o Tidied up open-boundaries some more
2356     o Added non-hydrostatic code
2357     o Fixed some input data
2358     o Modified MPI start-up to work in "coupled" context.
2359    
2360    checkpoint19
2361     o Tidied up directory structure for verification experiments.
2362     o Added new code for open boundaries.
2363     o Corrected advective terms near boundaries.
2364     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2365     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2366     o Split default parameters out of ini_parms.F into set_defaults.F.
2367    
2368    checkpoint18
2369     o Further changes for optional code generation with
2370       CPP - ugh!
2371    
2372    checkpoint17
2373     o Beginning to incorporating modularity
2374       for supporting atmos. and ocean configs.
2375     o Small changes for TAMC complinace
2376     o New ultra simple test case. Barotropic box
2377       configuration "exp0".
2378    
2379    checkpoint16
2380     o Minor changes to exchange routines to support
2381       accumulation in reverse mode. Adjoint of an
2382       assignment is an addition.
2383     o Changes to support compilation by TAMC (LR(1)
2384       syntax) and by g77 under Linux ( 72 character
2385       limit ).
2386    
2387    checkpoint15
2388     Rewrote exchange routines to allow
2389     o General tile <-> tile connectivity.
2390     o TAMC reverse mode flag ( is this really needed? )
2391     o Variable width overlap and exchange region widths.
2392     o Hooks for sharing data via DMA, Arctic, Memory Channel,
2393       shmput/shmget, VIA, SYSV shmem and every other cool
2394       communication method.
2395    
2396    checkpoint14
2397     Consistent isomorphism chages made. These allow dynamical core
2398     to support both pressure and meters as a vertical coordinate.
2399    
2400  checkpoint13  checkpoint13
2401   Release which corrects global_max problem and a couple   Release which corrects global_max problem and a couple
2402   of KGM time-averaging diagnostic errors. Also contains   of KGM time-averaging diagnostic errors. Also contains

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