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revision 1.26 by adcroft, Mon Apr 10 14:41:52 2000 UTC revision 1.532 by jmc, Sat Aug 13 19:08:16 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 annoying months-old bug in mnc/mdsio output for seaice pkg
8      - bug was reported by Jean-Michel and Ian Fenty
9    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
10      update exp. cpl_aim+ocn output.
11    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
12      Needed for high-res. runs with large global files
13      to be able to limit tapelev size
14    o Changed some tests for adjoint:
15      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
16      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
17      * global_ocean.90x40x15/ back to default 3-level checkpointing
18    
19    checkpoint57p_post
20    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
21    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
22      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
23    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
24    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
25      (was already the case for dissipation with mom_vecinv,
26       and also the case for grad.PhiHyd when staggered-timeStep)
27      This will allow to put dissipation out-off the AB time-stepping.
28     Unfortunately, affects truncation error. Update output of exp. that "fails"
29      (cg2d matching number) and leave the others for later: front_relax(10),
30      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
31      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
32    
33    checkpoint57o_post
34    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
35      (2) its ready to be documented during the 20050801 DocFest
36    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
37      for ideal_2D_oce and lab_sea on linux_ia32_g77
38    o set to #undef CTRL_SET_OLD_MAXCVARS_30
39      in global1x1_tot/code_seaice_adj to access indices 32, 33
40      (worth another tag)
41    
42    checkpoint57n_post
43    o adding precip control xx_precip 32
44    o adding swflux control xx_swflux 33
45    o Replacing 10 forcing penalty cost routines by 1 generic.
46    o Implementing partitioning in time-mean and variable adjustment
47      for atmos. state.
48    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
49    o in natl_box_adjoint:
50      * updated exp 1 to 10
51        (but does not have time-mean vs. variable split results yet)
52    o updated global1x1/*_seaice_adj/
53      to incorporate latest changes
54    o enable useSingleCpuIO for mdsio vector routines
55      (applies in particular to tapelev I/O)
56    o removed inefficient K-loop in all active_file*control*.F
57    
58    checkpoint57m_post
59    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
60      and advect_cs (use EXCH-2 and standard cs-32 grid files).
61    o pkg/exch2: filling of face-corner halo regions is optional
62      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
63    
64    checkpoint57l_post
65     tag before updating tutorials (pre-release-2)
66    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
67       for output and interpolation of input fields onto model grid)
68    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
69       Affects results of exp. rotating_tank ; update output.txt.
70    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
71          and taking the square quantity and/or using a fraction-weight field.
72    o fix aim_diagnostics_init.F mate numbers.
73    o add mnc output capability to diagnostics/diagstat and update
74      our cvsignore files for the ACSII output generated
75    
76    checkpoint57k_post
77    o lab_sea now uses diagnostics package and provides a suite of
78      new EXF diagnostics output.
79    
80    checkpoint57j_post
81    o exf
82      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
83        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
84        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
85      * extended diagnostics output
86        - now includes all EXF variables
87        - hs, hl moved to common block
88        - separate S/R for diagnostics, called after ctrl vector is added
89        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
90        - EXFqnet contains true Qnet (i.e. includes qsw)
91      * updated verif. lab_sea, global_with_exf
92      * Rearranging hflux (exf_mapfields -> exf_getforcing)
93        to ensure that diagnostics sees a true EXFqnet
94    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
95    o diagnostics pkg: change pointers so that 1 diagnostic can be used
96      several times with different frequencies.
97    o mnc-ify the thsice package as requested by Daniel Enderton
98      - the monitor--MNC output needs work
99      - many attributes need to be added (most are currently blank)
100    o mnc-ify theaim_v23 package as requested by Daniel Enderton
101      - many attributes need to be added (most are currently blank)
102    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
103    o add Sadourny like discretization to the 4th.O vorticity advection scheme
104    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
105      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
106         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
107    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
108     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
109    
110    checkpoint57i_post
111    o Diagnostics package was changed: diagnostic allocation is now deactivated
112      by setting an empty file name in the namelist (used to be by setting 0 frequency)
113    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
114      add 1rst Order upwind vertical Shear.
115    o add a quick fix for A/B checkpointing in OFFLINE mode
116    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
117      end-run around the C/Fortran linking horror in eesup/src/timers.F
118    o added pkg/runclock: allows user to terminate run based on wall clock
119    o added non-hydrostatic scaling parameter: nh_am2
120    o pkg/my82: futile attempt to make results compiler-independent by adding
121      some "_d 0", etc. no effect.
122    o for mnc output, fill the 'T' coordinate var with myTime and create a
123      separate 'iter' variable for iteration count
124    o pkg/diagnostics:
125      add new capability: output of Global/Regional & per-level statistics ;
126      tested against monitor output (including land & thSIce) on various exp.
127    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
128    
129    checkpoint57h_done
130      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
131      data.diagnostics, data.gchem, data.ptracers) is done.
132    
133    o pkg/diagnostics: prepare for Global/Regional statistics.
134      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
135    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
136      and rename it: DIFFERENT_MULTIPLE
137    
138    checkpoint57h_post
139    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
140    o pkg/diagnostics: change output frequency, now in seconds (instead
141      of Nb of iterations). This requires to change data.diagnostics.
142    checkpoint57h_pre
143    
144    o in mnc, let the user create the output dir if both mnc_outdir_date
145      and mnc_outdir_num are false
146    o add fflags() to pkg/diagnostics which allows one to specify, on a
147      per-file basis, the file precision [default behavior is unchanged]
148    o added diagnostics to pkg/kpp, including computation of mixed layer
149      depth based on a temperature/density criterion
150    o updated verification/natl_box to test the new pkg/kpp diagnostics
151    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
152    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
153    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
154      not mnc -- this mistake was found by JMC and is now corrected
155    
156    checkpoint57g_post
157    o add Adams-Bashforth 3rd Order time stepping:
158      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
159      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
160    checkpoint57g_pre
161    
162    o make lambda[Theta,Salt]ClimRelax spatially varying
163      (default remains spatially uniform constant based on tau)
164    o added new control variables
165      * init. uVel, vVel, etanN
166      * lambda[Theta,Salt]ClimRelax
167    o separate masks used for ctrl_pack/unpack 'from write_grid' output
168      (suggested by G. Forget)
169    
170    checkpoint57f_post
171    o add parameter "baseTime" = model base time = time at iteration zero
172      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
173      account for baseTime shift
174    o move Coriolis arrays from PARAMS.h to GRID.h
175    checkpoint57f_pre
176    
177    o mnc-ifying the seaice package
178    o introduced an alternative length scale calculation for use in the limiting
179      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
180    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
181    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
182      as well as grad(vort3).  Made it compatible with both approximate form
183      for the cubed sphere and full form of these gradients.  Added flag
184      useFullLeith to select between approximate and full form.  
185    o add "d0" in getcon.F to reduce differences between compilers/platforms
186      update output.txt of exp. fizhi-gridalt-hs
187    o change port_rand funtion to allow to set the seed.
188    o fix obscure MNC bug involving conversion between reals and integers
189      - it caused no problems with certain (eg. gcc, ifc) compilers but the
190        new version is now more standards-compliant
191    o adjoint-related modifications
192      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
193      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
194      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
195    
196    checkpoint57e_post
197    o Adding eddy stress controls a la Ferreira et al.
198    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
199    
200    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
201      update output.txt of exp. fizhi-gridalt-hs
202    o add more "Z" dimensions and associated coordinate vars to MNC
203    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
204    o parameter calendarDumps: when set, approximate months (30-31 days) and years
205      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
206      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
207      months and years.  Requires pkg/cal.
208    o diagnostics: add pickup functionality
209      - off by default for backwards compatibility
210      - current version only uses MDSIO -- MNC will be added
211    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
212    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
213    
214    checkpoint57d_post
215    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
216    o modify verification/ideal_2D_oce so that it tests the creation of mnc
217      output from the diagnostics package
218    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
219    o make genmake2 more portable by using ".$FS" instead of ".f" for more
220      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
221    o add coordinate variables to the MNC output from the diagnostics package
222    o change MNC-flags default value: true when useMNC=TRUE
223    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
224      the ability (off by default) to read the grid information using MNC
225    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
226    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
227    o do snap-shot diagnostics at the middle of the time-interval (instead of
228      at the end).
229    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
230      new test for AIM with thSIce + slab-ocean
231    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
232    o move state variable diagnostics to the beginning of the time step ;
233      (note: still needs some work specially for snap-shot diagnostics)
234      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
235    
236    checkpoint57c_post
237    o Change testing option (-ieee) to get closer agreement between g77 & ifort
238    o generate new output.txt files on faulks with g77 & the new -ieee option
239    checkpoint57c_pre
240    
241    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
242      update output.txt of exp. global_ocean.90x40x15
243    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
244      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
245    o add saltFlux(+File) forcing capability with periodicExternalForcing
246    o allow to use pkg diagnostics for GM-Redi & ThSIce output
247    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
248    o improvements for the MNC output from DIAGNOSTICS:
249      - correct handling of the unlimitied dimension
250      - all dims now have associated coordinate variables
251      - variables located at U, V, and Corner ("Z") points are now written
252        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
253        *all* data points are output
254    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
255    o added pkg/seaice/seaice_monitor.F
256    o mdsio_readfield.F can now read files visible only to master MPI process.
257    o pkg/seaice: some test code for ice-modified ocean stress
258    o exf_getffields interpolation defaults to bilinear for all scalar forcing
259      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
260      spurious negative numbers for precipitation and humidity.  Will cause
261      some small numerical differences for integrations using pkg/exf/exf_interp.F.
262    o pkg/ctrl/
263      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
264        May be enabled via doPackDiag
265      *  introduce z-scaling of
266         + gradient (doZscalePack) and
267         + control (doZscaleUnpack)
268    o pkg/mdsio/
269      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
270      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
271    
272    checkpoint57b_post
273    o simplify options in diagnostics_fill arguments (remove weird combinations)
274    o fix MNC coordinate variables so that they now contain per-face index
275      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
276      general, EXCH2 grids are only aligned to a "local" coordinate system
277    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
278    o Implement instantaneous output within pkg diagnostics:
279      setting a negative frequency in data.diagnostics produces
280     "snap-shot" output (as opposed to time-average if freq > 0)
281    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
282      NOTE: change ptracer diagnostics name: use 2 characters to work with
283            more than 9 tracers. Add also diagnostics of advect & diffus flux.
284    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
285      becomes the coordinate variable for the 'T' dimension
286    o add CF-style coordinate variables to MNC
287      - just a first cut:  numbers are meaningless on the cubesphere and
288        missing along the T axis but otherwise it works!
289    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
290    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
291    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
292      this is based directly on what the model compute, so that the content of
293      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
294    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
295    o clean up build options files for SunOS, in particular
296      - remove -traditional from xmakedepend
297      - change -xarch=v9 to -xarch=native for f77
298      - restore use of make (not gmake)
299      - add CC=gcc if using g77
300    o changes per discussion of AM, JMC, & EH3 today:
301      - move redundant "grid" variables out of "state" -- in preparation of
302        creating proper CF-style coordinate variables and in recognition
303        that any/all grid variables can be easily copied (eg. w/NCO) from
304        the grid files into any of the other NetCDF files
305      - *always* output grid variables with MDSIO (this will eventually be
306        changed)
307      - output MNC grid file if useMNC is true
308    o every instance of _END_MASTER() has been found and replaced with
309      _END_MASTER( myThid ) in order to satisfy certain picky Sun
310      preprocessors
311    o re-arrange diagnostics pkg initialisation:
312     - allow each package to extend the available diagnostics list
313     - add some checking and fix small problems (multi-threaded, ...)
314     - new S/R diagnostics_fill (replace fill_diagnostics):
315       look through the short list of active diag. (instead of the long list)
316       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
317    
318    checkpoint57a_post
319    o this set of changes restores TAMC compatibility
320      tested for global_ocean.90x40x15 adjoint on trough
321      (what a pain)
322    
323    checkpoint57a_pre
324    o some modifs in tools/build_options for sunos
325    o call ctrl_pack for ctrl at end for optimcycle=0
326    
327    checkpoint57
328    o add horizontal bi-harmonic viscosity for vertical velocity
329      - new parameter viscA4W (defaults to viscA4)
330      - affects only non-hydrostatic code
331      - to be done: no-slip lateral boundary conditions
332    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
333    o implement Implicit Vertical advection for pTracers
334    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
335      (implemented also for implicit vertical diffusion & advection)
336    o OBCS: extend application of tracer open boundary conditions
337      to a strip beyond the boundary of width Olx/Oly
338    o add call monitor to TAF set of required calls (flow directives)
339      and include in natl_box_adjoint
340    o untangle a few ifdefs related to cost, ctrl, autodiff
341      untangel a few ALLOW_ECCO_OPTIMIZATION
342    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
343      (theta2, salt2 in ecco_cost_weights)
344    
345    checkpoint56c_post
346    o OBCS as control variables
347      - update ctrl_ad_diff.list, obcs_ad_diff.list
348      - remove balance of obcs controls from default
349      - fix index bug nobcs in ctrl_init
350      - fix dummy fields filen in ctrl_pack
351      - add dummy weights for obcs
352    o lsopt: comment out fort.94 output
353    o optim:
354      - remove unnecessary header files
355      - adjusted namelists
356      - add xerbla.F to Makefile
357    o exf:
358      - multiple modifications of exf_check_range
359      - unit change in exf_init_runoff from [m/year] to [m/s]
360    o mdsio:
361      - i/o-vector change debugLevel from debLevA to debLevB
362    
363    checkpoint56b_post
364    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
365      is called from DO_THE_MODEL_IO
366      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
367      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
368      - clean up PTRACERS_WRITE_TIMEAVE a little
369    o add another verification experiment that tests both the cfc-pkg and
370      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
371      reactive tendencies treated inline with regular timestepping
372    o testreport previously did a lousy job of comparing small numbers, so
373      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
374      implemented in the little c-progam tmp_cmpnum.c which is embedded in
375      testreport.
376    o ptracers_monitor: bug fix for MPI
377    
378    checkpoint56a_post
379    o GCHEM: finish reorganizating the package
380      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
381        (introduces another 3D-array for each passive tracer, but only if
382        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
383        gchemTendency is not needed because the timestep is done separately)
384      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
385      - GCHEM is now---more or less cleanly---separate from PTRACERS
386      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
387        so clear to me how that should be done in a general way.
388    o CFC: improve formatting of output in CFC_ATMOS
389    o PTRACERS:
390      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
391        that ALL experiments with ptracers enable can be checked. This makes
392        GCHEM_MONITOR obsolete.
393      - include a runtime parameter PTRACERS_monitorFreq that defaults to
394        monitorFreq
395      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
396    o add PTRACERS (PTR0[1-5]) to testreport output
397    o exf_check_range:
398      * default changed to .TRUE.
399      * will check values for niter0 if debLevA, every timestep if debLevB
400      * STOP in exf_check_range if 'out of range'
401      * range chosen generous to allow for potential extema
402      TBD: a version with stricter range
403           permitted range would be runtime parameters
404    o GMredi:
405      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
406      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
407      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
408    o GCHEM:
409      - move call to GCHEM_FORCING_SEP, so that it is now called before
410        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
411      - introduced a useGCHEM runtime flag and applied it everywhere.
412      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
413        this flag is now only visible within GCHEM-pkg routines.
414      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
415        be replaced by a 3D array that is computed before thermodynamics; for
416        this, the tracer ID iTracer had to be included into the parameter list
417        of ptracers_forcing
418      - set up forward_step to call gchem_forcing, that will replace
419        gchem_forcing_int in ptracers_forcing
420      - cleaning up
421    o small cleaning of exch2: remove files that are also in eesupp/src
422    
423    checkpoint56
424    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
425    o mnc: cleanup "full" files--fixes out-of-memory problem
426    o ECCO-GODAE
427      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
428      * fully merged and updated from SIO code
429        windstress sign change affects
430        - exf_inscal_[u/v]stress
431        - sign of xx_tau[u/v] adjustments
432        - signs in cost_scat
433      * ctrl_get_gen: avoid update of tau[u/v] for first few days
434      * natl_box_adjoint updated and compressed
435      * 2-level checkpoint switch added
436        (tested in EXP. 1 of natl_box_adjoint)
437      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
438    o SVD
439      * first complete, non-hacked version for SVD calculations
440      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
441        performed via direct access files admtlm_vector.it????
442        (via ctrl_[un]pack)
443      * optimcycle is used for ARPACK iteration counter
444        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
445      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
446        and add linear transforms where necessary
447      * controls are initial/final SST, SSS (can be extended; need to check
448        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
449    o mdsio: filename info to both stderr, stdout
450    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
451      from sign change
452    
453    checkpoint55j_post
454    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
455      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
456    o add consistent build directories and .cvsignore files to verification
457    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
458    o make all subroutines 30 or less characters in length for certain older
459      compilers to work (a thorough search only turns up two routines in
460      pkg/ptracers)
461    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
462      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
463    
464    checkpoint55i_post
465    o change arrays for total vertical diffusivity (2.D if explicit,
466      3.D if implicit) ; each ptracer uses its own background value.
467    o added mnc/NetCDF output capability to ocn_compon_interf
468      - added bits to verification/cpl_aim+ocn so that it can run on
469        ITRDA and other clusters without the mpirun "-wd" option
470    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
471      configuration
472    o give MNC the ability to create additional files rather than
473      exceeding a specified file size limit "MNC_MAX_FILESIZE"
474      - the default is just less than 2GB which is a practical limit
475        on many systems
476    o Compute the non-local term using either KPP vertical diffusivity (=default)
477       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
478    
479    checkpoint55h_post
480    o add verification test "vermix"
481    o remove all the *_ioinc flags and replace with the single global
482      outputTypesInclusive flag
483    o allow to set a vertical profile of vertical diffusivity for T & S
484    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
485    o useMNC moved from data.mnc to data.pkg
486    
487    checkpoint55g_post
488    o Renaming carbon AD experiments to comply with testreport conventions
489    o Updating adjoint of Held-Suarez hs94.1x64x5
490    o Fixing directives for non-ECCO forward_step, after ECCO directives
491      have been fixed to avoid recomp. of do_oceanic_phys
492      Works well for global_ocean.90x40x15,
493      but recomp. issue remains for carbon
494    o Updating adjoint output for natl_box_adjoint after
495      pkg/ecco has been modified (see taga c55d_post)
496    
497    checkpoint55f_post
498    o rename to timeave_init_fixed
499    
500    checkpoint55e_post
501    o some delicate re-shuffle of store directives to avoid one
502      extra call of do_oceanic_physics
503      affects ecco_the_main_loop.F, do_oceanic_physics.F
504      checkpoint_lev1_directives.h
505    o NB: this may break global_ocean adjoint temporarily,
506      but it is clear how to fix it. Will do later, need this now.
507    
508    checkpoint55d_post
509    o ECCO specific cost function terms (up-to-date with 1x1 runs)
510    o ecco_cost_weights is modified to 1x1 runs
511    o modifs to allow observations to be read in as
512      single file or yearly files
513    o enable to read exf forcing fields as either
514      single file or yearly files (flag useExfYearlyFields)
515    checkpoint55d_pre
516    
517    o switch between 2-level and 3-level checkpointing
518    o add ability of MNC to write local and "partial" (eg. 2D slices where
519      the full 3D field is never actually stored) arrays to NetCDF files
520      with the correct (that is, the complete multi-dimensional) set of
521      array indicies
522      - used in mom_vecinv() to write the diagFreq output
523      - tested (demonstrated) in verification/aim.5l_cs
524    o further mnc-ification
525      - add verification/lab_sea to the list with mnc setups
526      - fix undefined mnc v-names in cd_code
527      - add kpp to mnc output (both snapshot and timeave)
528    o non-hydrostatic code
529      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
530        in calc_gw.F
531      - defaults to viscAh
532      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
533        friction or Leith) in non-hydrostatic mode, as long as there is
534        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
535    o pkg/cost
536      extend simple cost functions to treat time mean quantities
537      (T,U,V) via cost_accumulate_state from cost_tile
538    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
539        be 2 times larger than the minimum size the advection scheme requires.
540        now get a perfect conservation of salt in advect_cs test-exp (updated)
541    o GGL90 (Gaspar's TKE mixed layer)
542      - add horizontal diffusion of TKE, requires exchanges in
543        do_fields_blocking_exchanges, horizontal diffusivity is zero by
544        default. In OPA there is no horizontal diffusion of TKE but the
545        mixing coefficients are computed from a horizontal average of TKE of
546        6 points or so. I think that diffusion has a little more physical
547        justification.
548      - clean up ggl90_calc in the hope of reducing memory usage (this hope
549        was in vain)
550      - mask tke-variable in ggl90_init
551    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
552    o fix biharmonic diffusion on CS-grid.
553    o more obcs stuff
554      - added obcs_external_fields_load as an alternative to the EXF-pkg option
555        for reading boundary values. This routine is called from
556        obcs_prescribe_read
557      - updated obcs_check
558      - changed sponge layer relaxation parameter units for days to seconds
559      - turned off sponge layer by default
560      - changed argument list of OBCS_CALC to myTime+deltaTclock
561      - fixed about 35 bugs in obcs_external_fields_load
562    
563    checkpoint55c_post
564    o obcs stuff
565      - new runtime flags useOBCSprescribe, useOBCSbalance
566      - re-arranged obcs_calc
567      - moved exf_getobcs to obcs_prescibe_read
568        obcs_prescibe_read is called after ORLANSKI stuff
569        and independent of it (executable can contain all).
570      - updated obcs_check
571      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
572        These may be necessary only if tangential velocities are
573        prescribed at OB, not sure, needs testing.
574    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
575      which simplifies the calls and passes the ifc check-bounds test
576    
577    checkpoint55b_post
578    o add a 2D scalar, Z location, exchange_2 routine.
579    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
580      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
581      affects advect_cs results (for the wrong reason): update output.txt
582    o use a more standard discretization for biharmonic viscosity ;
583     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
584      affects results of dome set-up: update output.txt
585    o fix gad_advection.F (CubedSphere part), back to version 1.23
586    o fix bug in mom_vi_del2uv.F (CubedSphere part).
587    
588    checkpoint55a_post
589    o merged code to
590      * prescribe/read time-dependent open boundaries
591        (works in conjunction with exf, cal)
592      * sponge layer code for open boundaries
593      * each boundary N/S/E/W now has its own CPP option
594        (healthy for the adjoint)
595    
596    checkpoint55
597    o up-to-date adjoint of previous breaks
598      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
599      - global_ocean_ebm: adjoint still needs fix (TLM ok)
600      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
601      - carbon: * remove tr1-related adjoint verification
602                * add ptracer as control variable
603    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
604      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
605    
606    checkpoint54f_post
607    o in verification/carbin/ remove experiment related to
608      ALLOW_PASSIVE_TRACER (array tr1 etc)
609      code_ad/ input_ad/ results_ad
610    
611    o add two new packages
612      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
613        + subject to optimization (memory)
614      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
615        + subject to reordering (many GOTOs in the original code)
616        + so far opps is called for every (i,j) point, and then operates in
617          the vertical; one may want to reorder the scheme in order operate in
618          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
619          fields)
620    o overhaul of IO so that we now have flags for MDSIO and/or MNC
621      - all verification tests compile and run with linux_ia32_g77
622      - defaults are compatible with current input files--nothing
623        should change if you were not previously using MNC
624      - MNC output has been added in numerous places (eg. timeave)
625        but there are still a few writes not yet do-able with MNC
626        (this is in progress)
627      - flags now allow for either/or/both use of MDSIO and MNC and
628        documentation will soon follow
629      - numerous small formatting cleanups for ProTeX
630    o add version info (via BUILD_INFO.h) to MNC and stdout
631    
632    checkpoint54e_post
633    o add two new packages
634      - pp81 (Packanowski and Philander, 1981), Richardson number and
635        stratification dependent mixing
636      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
637      - these scheme operate in a similar manner as KPP (without ghat, of
638        course), however there is only one diffusivity that is used for both
639        temperature and salinity (and passive tracers)ç
640    o add offline package
641    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
642      provided by Stephanie Dutkiewicz
643    o genmake2: add ability to search for C compilers and cleanup test output
644      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
645    
646    checkpoint54d_post
647    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
648    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
649      leading to additional shift by 5 days each year of integration
650       (i.e. leading to considerable offset over the years)
651    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
652    o start with no AB and no initial filtering (staggerTimeStep):
653      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
654    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
655      (external loading & cpl import/export stay in forward_step.F)
656    o update coupling interface to work with new staggerTimeStep
657    o change MDSIO ptracers_pickup.
658    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
659    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
660    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
661    
662    checkpoint54c_post
663    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
664      this affects (truncation error) output.txt of test-exp:
665       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
666    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
667    o change Qnet to always be the net heat flux, (+upward).
668      affects (truncation error) output of natl_box exp.: updated
669    o define the max number of passive tracers in PTRACERS_SIZE.h
670    o start to test mnc routinely in exp0
671    o add sea-ice loading (sIceLoad) as a new forcing field.
672    
673    checkpoint54b_post
674    o add testreport "-j JOBS" option for parallel builds (tested and pretty
675       impressive on Altix and Opteron systems)
676    o diagnostics can now write NetCDF files through the mnc package
677    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
678    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
679    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
680      affects (truncation error) output of lab_sea & natl_box exp.: updated
681    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
682    
683    checkpoint54a_post
684    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
685    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
686    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
687    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
688      + internal_wave (shift in writing cg2d_ini_res)
689    checkpoint54a_pre
690    
691    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
692      - modified verification/lab_sea and natl_box_adjoint accordingly
693    
694    checkpoint54
695    checkpoint53g_post
696    o prepare splitting of thermodynamics: store convect.counter in common block
697    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
698      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
699    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
700    o new parameter "nShapS": allow to treat differently S from T (nShapT)
701    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
702    o restore adjointability
703    
704    checkpoint53f_post
705    o modifications that affect AIM experiment results (update output.txt):
706      - no advection of S at top interface Nr (pkg/generic_advdiff)
707      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
708    o AIM pkg:
709      - include stability function into surf.Flux derivative relative to Tsurf
710      - calculate clear-sky radiation & surface temp. change (for diagnostics)
711    
712    checkpoint53e_post
713    o merged cylindrical coord configuration
714    o added rotating_tank experiment
715    checkpoint53e_pre
716    
717    checkpoint53d_post
718    o faulks upgraded: re-generate output.txt that have changed:
719       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
720    o Added Bryan and Lewis, 1979, vertical diffusivity profile
721    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
722    o added Sadourny discretization of Coriolis
723      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
724      - re-enabled use of omega3 (useAbsVorticity)
725    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
726      vector-invariant equations
727      - note: does *NOT* yet use same variable visc. for no-slip BC's.
728    o recoded the lateral boundary conditions for non-hydrostatic w, this time
729      hopefully without new bugs
730      - still to do: biharmonic friction for non-hydrostatic w
731    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
732    o regenerated output for global_ocean_ebm (using -ieee)
733    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
734      of mom_common/
735      - simple re-arrangement of instructions within computing loop
736    checkpoint53d_pre
737    
738    checkpoint53c_post
739    o new version of coupler for AIM+thSIce and Ocean models
740     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
741     - land: change Evaporation of snow
742     - aim with thSIce: fix bug in snow-precip.
743    o changes to calc_gw.F
744     - bug fix for w^2 term near the bottom boundary
745     - (hopefully) improve the lateral slip boundary condtions for use with
746        partial/looped cells
747      - because the bug fix changes two verification experiments anyway (exp5
748        and plume on slope), change the lateral boundary condition from half slip
749        to the value of no_slip_sides
750    o ebm package wasnt quite up to the parallel task. Fixed that.
751    o Adjoint of EBM package + verification
752      * TLM OK
753      * ADM not sufficient accuracy yet (needs further testing)
754    
755    checkpoint53b_post
756    o Commiting new energy balance model to repository
757      * package is pkg/ebm
758      * verif. is verification/global_ocean_ebm
759      * references are in ebm_driver.F
760    C      * X. Wang, P. Stone and J. Marotzke, 1999:
761    C        Global thermohaline circulation. Part I:
762    C        Sensitivity to atmospheric moisture transport.
763    C        J. Climate 12(1), 71-82
764    C      * X. Wang, P. Stone and J. Marotzke, 1999:
765    C        Global thermohaline circulation. Part II:
766    C        Sensitivity with interactive transport.
767    C        J. Climate 12(1), 83-91
768    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
769    C        Destabilization of the thermohaline circulation
770    C        by atmospheric eddy transports.
771    C        J. Climate 7(12), 1870-1882
772    o Will need long integration testing.
773    checkpoint53b_pre
774    
775    o created pkg/mom_common in preparation for variable viscosity code
776    o renamed and split ini_mnc_io
777    o pkg/land: only liquid water can diffuse or run-off
778    o AIM using land: soil wetness availability account for snow
779    o added printMapIncludesZeros to EEPARMS namelist
780    
781    checkpoint53a_post
782    o restore TAMC compatiility for exf_constants.h
783      (no usage of _d in .h)
784    o Additional storing in KPP in an attempt to fix
785      TAMC problem with adjoint of KPP code.
786      (no success...)
787      Identical code works fine with TAF.
788    o Fixed verification/natl_box_adjoint experiments.
789      Initial conditions for Experiments 4 and 5 are now
790      set to "SEAICE_initialHEFF=0", which is more reasonable,
791      and hence gives results closer to that of Experiment 2.
792      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
793    
794    checkpoint53
795    o stable checkpoint with up to date adjoint
796      TLM tests only run for 1st grdchk at the moment. Its unclear if
797      this is a code problem or a problem with resetting code for g_
798      variables that is being autogenerated wrong.
799      Otherwise:
800       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
801       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
802         are both still in chaos following their security messes.
803    
804    checkpoint52n_post
805    o various build (mostly genmake2) changes including:
806      - ability to build/run more easily within Cygwin and MacOS X
807      - more complicated Makefiles with a stronger dependence on Gnu Make
808    o pkg/seaice modifications
809      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
810        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
811        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
812      - changed proxy for geostrophic velocity and updated
813        verification/lab_sea/results/* accordingly
814      - removed ADI dynamic solver from pkg/seaice
815      - replaced all occurrences of 1/CSTICE or 1/CSUICE
816        they caused a segmentation fault under certain circumstances
817      - removed unused field WATR
818    o bug fix in exf-package:
819      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
820         now reflect that.
821    o small fixes in the cal-package:
822      - set reference date to first of January for the 'model'-calendar
823      - failing of cal_CheckDate in cal_FullDate now actually results in a
824        warning
825    o small modifications in exf-package to increase flexibility:
826      - change climtempfreeze from a constant to a runtime parameter that
827        is specified in data.exf_clim (default = -1.9)
828      - introduce runtime parameter windstressmax (default = 2.0) that is
829        specified in data.exf
830    o fix in pkg/thsice:
831      - update Evap (Tsf changes) to be consistent with Latent heat flux
832      - maintain snow precipitation unchanged (even if Tsf >=0).
833     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
834    
835    checkpoint52m_post
836    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
837      this does not change any of the results, because myIter=0 in swfrac always
838      lead to jwtype=2 (the default anyway), but the call makes little sense
839      as a default
840    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
841    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
842      atmospheric model (AIM) to use it ; add a "slab ocean" component.
843    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
844    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
845    o extending useSingleCpuIO option to work with new exch2 I/O format
846      - old-style, missing-tile I/O is still accessible by defining CPP
847        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
848    o monitor package can write to NetCDF files and/or STDOUT
849    o fix re-definition bug in MNC_GRID_INIT_ALL()
850    o doc/api_reference added
851      - a framework for building an API Reference Manual using all
852        the "protex" comments embedded in the code
853      - see pkg/generic_advdiff, pkg/mnc for examples
854    o MNC:
855      - make myThid the last argument for all subroutines
856      - new default for the grid files: NO halos
857      - add useMNC and other run-time flags
858      - separate per-file-group handling of the unlimited dimension
859      - early initialization of MNC w/ flags read at the eeboot stage
860        and lookup tables set in initialize_fixed
861      - write all MNC output to a freshly-created directory
862    o thermodynamics sea-ice (thsice) is now tested with testreport.
863    o test exp. advect_cs: use the standard cs32 grid ; update output.
864    o Added functionality to grdchk:
865      pick global i,j,k position (or nearest wet) where to perform check.
866    
867    checkpoint52l_post
868    o new land formulation:
869      a) use ground enthalpy as prognostic variable to ensure exact
870         energy conservation.
871      b) account for water temperature and for latent heat of freezing
872         in all processes (rain, run-off, ground storage)
873      c) compute surface and ground temperature implicitly.
874    o aim_v23 modification for new land model:
875      a) Treat separately land / ocean / sea-ice surface fluxes
876         to allow implicit computation of land & sea-ice surface temp.
877      b) add snow precipitation.
878    checkpoint52l_pre
879    
880    o fix problem (when 1 tile is empty) in min/max monitor.
881    o fix bug in timeAve (u,vZetatave in common block)
882    o no restoring terms under ice for pkg/seaice
883    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
884    o bug fix for pkg/seaice pickups
885    o change MNC call locations and add coordinate attributes
886    o mask vorticity at the corner ; affects global_ocean.cs output
887    o fix ini_curvilinear_grid ; test CS experiments with mpi
888    o aim.5l_cs: modify sea-ice fraction input file ; update output
889    o exf: Adding simple range check routine for exf fields after read
890    
891    checkpoint52k_post
892    o removed top-level directory "diags"
893      - we migrated these functions to pkg/timeave a long time ago
894    o fixed bug introduced in pkg/monitor
895    o accuracy ctrlprec = 32 insuffient for gradient checks using
896      averaged fields (I/O via cost_averages)
897      -> use ctrl.h in active_file*.F to control I/O precision.
898    o paramter list of CALL ADTHE_MAIN_LOOP
899    o added initial do_the_model_io to ecco
900    o set all ...Freq to zero after cost_final
901      taveFreq, dumpFreq, pChkptFreq
902    o MAIN and ECCO differentiability restored
903    
904    checkpoint52j_post
905    o fix nchklev in tamc.h for global_ocean...
906    o Bringing flow and store directives up-to-date
907    o Really weird thing!
908      call do_the_model_io from the_main_loop with parameters
909      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
910      TAF places a faulty re-call of initialise_varia
911      after cost_final call which should not be there!
912    checkpoint52j_pre
913    
914    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
915      error messages
916    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
917    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
918      debug output
919    o modfied mdsio_writefield.F to handle non-global files under exch2
920    o update AIM Cubed-Sphere exp (aim.5l_cs):
921      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
922    o update AIM Equatorial Channel exp:
923      use standard aim_v23 pkg and change the SST fields to be more realistic.
924    o globalFile now works with exch2
925    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
926      mon_vort3.F to make exch2 friendly with >1 tile per cube face
927    o limit timeave output for hi-res integrations
928    
929    checkpoint52i_post
930    o removed CPP_EEOPTIONS.h from verification/*/code
931    o updated the tiling for global_ocean_pressure
932    checkpoint52i_pre
933    
934    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
935      the old pkg/aim).
936    
937    checkpoint52h_pre
938    o shortened offending lines in exch2_send_rx?.template
939    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
940    o genmake2: add build & execute test for NetCDF code
941    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
942      old grid files, moved CPP_EEMACROS.h to pkg/exch2
943    o added useSingleCPUIO flag to monitor.F and mon_out.F
944    o added temporary hack for sea-ice dynamics on the cube:
945      metric terms are ignored and it is assumed that
946      there is no sea-ice on cube faces 1, 2, 4, and 5.
947    
948    checkpoint52f_post
949    o added exch2 cube routines to pkg/exch2
950    o modified hs94.cs-32x32x5 to use it
951    o added new grid files to hs94.cs-32x32x5
952    checkpoint52f_pre
953    
954    checkpoint52e_post
955    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
956      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
957    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
958      to work with implicit vertical advection and AB ;
959    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
960    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
961     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
962    checkpoint52e_pre
963    
964    o fix bug in impldiff when Nr=1 or Nr=2.
965    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
966    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
967    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
968      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
969    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
970    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
971    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
972    
973    checkpoint52d_post
974    o re-tiled many expts to allow comparison in multi-processor mode
975      - updated output accordingly
976      - changed hs94.128x64x5 to use intial T from file rather than use the
977        random number generator
978    o add infrastructure in model routines for fizhi and gridalt packages
979    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
980    o changes to permit hi-res, cubed-sphere, configuration
981      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
982      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
983      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
984        of surface winds for the cube
985      (A verification experiment, based on global_ocean.cs32x15, but with
986       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
987       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
988       complete with example surface forcing files and matlab scripts to look
989       at the output and compare it with that of global_ocean.cs32x15.)
990    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
991       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
992       to conform to the common rule.
993    o check-in the first version of the coupler + interfaces for multi-components
994       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
995       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
996       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
997       - ocean and atmos. share the same horizontal grid (no interpolation).
998       - exchanges between component and coupler is done in forward_step
999    o new verification experiment, cpl_aim+ocn:
1000       coupled ocean - AIM atmosphere on cs32 grid.
1001    
1002    checkpoint52d_pre
1003    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1004    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1005    
1006    checkpoint52c_post
1007    o Fixing OPTIONS files for use of exf:
1008      - ALLOW_ECCO not needed
1009      - ECCO_CPPOPTIONS.h should not be included from
1010        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1011        as has been the case in the past
1012      - All cal/exf related options are currently set in
1013        single header file. Should remain so until we
1014        agree on a consistent new policy.
1015    o Removed all CPP options for cal package.
1016      cal has no more CPP options.
1017    o modified STOREs in GAD_ADVECTION
1018    o corrected key comp. for passkey
1019    
1020    checkpoint52b_post
1021    o new version: "thsice" of thermodynamic sea-ice pkg:
1022     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1023     - modify fluxes but do not change theta directly;
1024     - light cleaning of bulk_force pkg (still needed with thsice).
1025     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1026       + output_thsice.txt to test thsice & bulk_force pkgs.
1027    o put back grid & coriolis monitor output.
1028    checkpoint52b_pre
1029    
1030    o call "do_the_model_io" at the beginning (=> dump initial state)
1031    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1032    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1033      (need info on NUMBER_OF_PTRACERS)
1034    o missing PTRACERS headers in some routines
1035    o default tamc.h in pkg/autodiff supposed to crash
1036      to ensure proper customization
1037    
1038    checkpoint52a_post
1039    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1040      - moved surfaceTendencyTice from pkg/seaice to main code
1041      - subroutine FREEZE_SURFACE now limits only surface temperature
1042        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1043        => new output.txt for global_ocean.cs32x15 & global_with_exf
1044      - keep the old version of FREEZE for backward compatibility;
1045        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1046      - corresponding modifs for TAF directives
1047    o added surface flux output variables to TIMEAVE_STATVARS
1048    o time-averaged output for pkg/ptracers
1049    o fix problem with ECCO-related divided adjoint
1050      snapshot file was missing some ad-variables,
1051      but no warning issued by TAF
1052    
1053    checkpoint52a_pre
1054    o some bug fixes for #undef REAL4_IS_SLOW
1055    
1056    checkpoint52 = ecco_c52_e35
1057    o after testing adjoints of checkpoint51u_post
1058    
1059    checkpoint51u_post
1060    o this is the post-merge tag of the ecco-branch
1061      (needs another clean checkout and re-testing)
1062    o various natl_box_adjoint configs and results
1063      but no input fields
1064    o obcs adjoint not yet merged!
1065    o adding ECCO global 1x1 and 2x2 degree configs
1066    o updated/extended some store directives for seaice
1067    o pkg/ecco now containes ecco-specific part of cost function
1068    o top level routines the_main_loop, forward_step
1069      supersede those in model/src/
1070      previous input data.cost now in data.ecco
1071      (new namelist ecco_cost_nml)
1072    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1073    
1074    checkpoint51t_post
1075    o this is the pre-merge tag of the ecco-branch
1076    
1077    checkpoint51s_post
1078    o cleanup: removed various obsolete #define-s
1079    o pkg/grdchk
1080      - renamed 'ph-grd 3' to 'grad-res'
1081      - merged from ecco-branch
1082        (remaining bug fixes for obcs gradient checks)
1083      - additional high-precision output for testreport
1084        (grep for 'precision_grdchk_result')
1085    
1086    checkpoint51r_post
1087    o cleaned up or removed CPP_OPTIONS.h files
1088    o updated results for some of the tests to reflect the new
1089      optfiles (-ieee: -O0 instead of -O3)
1090    
1091    checkpoint51q_post
1092    o cd_code:
1093      - moved cd_scheme.F -> cd_code_scheme.F
1094      - separate read_checkpoint from cd_code_ini_vars.F
1095      - separated cd_code part from write_checkpoint
1096      - updated AD_SOURCE, generated .flow
1097      - added CD_CODE_VARS.h to the_main_loop
1098      - Moving cd_code specific store dir.s to pkg/cd_code
1099    o ctrl package totally restructured
1100      - pack/unpack now optional and decoupled from
1101        xx_/adxx_ I/O
1102      - ctrl_pack/unpack cleaned
1103        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1104      - confined inclusion of AD_CONFIG.h to where necessary.
1105    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1106    
1107    checkpoint51p_post
1108    o create initial cd_code package
1109      - WARNING: the initialization of fields within packages
1110        is broken because INI_FIELDS (where READ_CHECKPOINT is
1111        called) is called *before* PACKAGES_INIT_VARIABLES.
1112        This seems to be backwards since
1113        1) its important to initially zero the entire field including
1114           the "halo" region
1115        2) zeroing needs to be done *before* reading pickup info
1116           and the pickup call might or might not happen in any
1117           particular run
1118      - this needs an overhaul for R2
1119    o cleanup verification/*/code/GMREDI_OPTIONS.h
1120    o cleanup testreport
1121    
1122    checkpoint51o_post
1123    o bringing AD-related verif's up to date with genmake2
1124      - carbon/
1125      - global_ocean.90x40x15/
1126      - hs.94.1x64x5/
1127      - (front_relax/ )
1128    o (more) consistent directory structure for AD-related verif.'s
1129    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1130    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1131    o bug fix in find_alpha.F for MDJWF:
1132      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1133        change rho -> rho-rhoConst
1134      - replace call find_rho to find_rhonum
1135    o initialisation of rFlx extended to full array (required by TAF)
1136      and shifted to thermodynamics
1137    o removed PTRACERS.h in ptracers routine
1138    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1139    o Correcting initialisations for fVerU, fVerV.
1140    o helping TAF to recognize dependency on kUp for
1141      fVerU, fVerV
1142    o Replacing delZ by delR in pkg/ctrl/
1143    checkpoint51o_pre
1144    
1145    o undid all of cp51 pending some cleanups and discussion
1146    o added the [#include "AD_CONFIG.h"] statement to all files that need
1147       it for adjoint/tl #defines
1148     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1149     o removed tools/genmake since it no longer works
1150    
1151    checkpoint51n_post
1152    o modifications to make FREEZE flux visible to pkg/kpp
1153      - moved surfaceTendencyTice from pkg/seaice to main code
1154      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1155      - subroutine FREEZE now limits only surface temperature
1156        (this means new output.txt for global_ocean.90x40x15,
1157         global_ocean.cs32x15, and global_with_exf)
1158    o added surface flux output variables to TIMEAVE_STATVARS
1159    
1160    checkpoint51n_pre
1161    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1162    o added [#include "AD_CONFIG.h"] to all files that use the following
1163      defines:
1164      - ALLOW_ADJOINT_RUN
1165      - ALLOW_TANGENTLINEAR_RUN
1166      - ALLOW_ECCO_OPTIMIZATION
1167    
1168    checkpoint51m_post
1169    o incorporating changes to get TAMC/TAF working in genmake2
1170      - added new TAMC/TAF targets to the Makefile
1171      - various cleanups related to package handling
1172      - these changes should have no impact on the forward model
1173    
1174    checkpoint51l_post
1175    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1176     - faster algorithm for cal_addtime.F
1177     - higher precision arithmetic, where needed
1178     - pkg/exf *startdate variables changed from calendar date to
1179       model integration time
1180    
1181    checkpoint51l_pre
1182    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1183    o enable to apply restoring on S & T only in a latitude band.
1184    o update output (external_forcing_surf modif. change truncation errors)
1185       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1186    
1187    checkpoint51k_post
1188    o change default to: useNHMTerms=.FALSE.
1189     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1190       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1191     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1192        exp1, ideal_2D_oce
1193     - change data file of oceanic exp (leave the results unchanged for now)
1194       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1195    o set gravitySign automatically according to the vertical coordinate used
1196      (and change sign: back to "logical" value: +1 when R increases downward)
1197    o added an include barrier to the default CPP_OPTIONS.h and
1198      removed the #include "PACKAGES_CONFIG.h" from it
1199    o fix a bug in mom_fluxform (from chk51j_post)
1200    
1201    checkpoint51j_post
1202    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1203    o adjusted some flow directives (dynamics, thermodynamics)
1204    o added cubed-sphere case to test cost function
1205    o heckpoint_lev?_directives.h now include
1206      pkg-specific directives, whenever those are enabled.
1207    o Moving pkg-specific flow directives to corresponding pkg
1208      Moving pkg-specific differentiation list to corresponding pkg
1209      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1210      ---> conventions are
1211           - pkg_ad.flow
1212           - pkg_ad_diff.list
1213           - pkg_ad_check_lev?_dir.h
1214    
1215    checkpoint51i_post
1216    o merge of the branch-genmake2
1217      - knowingly breaks the older genmake
1218      - automatic generation of all ALLOW_${PKG_NAME} defines
1219      - new testreport supersedes older testscript
1220    o large number of package inclusion and header cleanups
1221    checkpoint51i_pre
1222    
1223    o new output for adjoin of global ocean vector invariant
1224    o fix for checkpoint of thermodynamic seaice and bulk_force
1225    o Steph gchem various cleanups
1226    
1227    checkpoint 51h_pre
1228    o fixed some single quotes
1229    o modify gchem pkg to be more versatile
1230    o modifications to clean up dic pkg
1231    o add pkg/cfc
1232    
1233    checkpoint51g_post
1234    o provide links for ARPACK and ADM*TLM
1235    o start removing verification/vero/
1236    o update AD-related stuff
1237      (in particular some IF-statements in model/src/ routines)
1238    o adding to verification/global_ocean.90x40x15/ adjoint of
1239      vector invariant setup
1240    
1241    checkpoint51f_post
1242    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1243    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1244      of tracer Green's fucntions for ocean inversion project.
1245    
1246    checkpoint51f_pre
1247    o Added on-the-fly spatial interpolation capability
1248        "USE_EXF_INTERPOLATION" to pkg/exf.
1249      - This is a temporary Cartesian-grid hack until
1250        the super-duper ESMF coupler becomes available.
1251      - See verification/global_with_exf/README for usage example.
1252      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1253        flags and modified pkg/seaice accordingly.
1254    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1255        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1256        non-local transport term.
1257    
1258    checkpoint51e_post
1259    o pkg/mom_vecinv:
1260      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1261      - add time-ave diagnostic of vorticity advection.
1262    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1263    o atmospheric geopotential: - include water vapor effect;
1264                                - use p^kappa in p* scaling.
1265    o land pkg: read initial state from files.
1266    o AIM : add stratospheric drag in the upper level
1267    
1268    checkpoint51d_post
1269    o change function ILNBLNK (=> last non-blank char.) to return zero
1270      (instead of the string length) when the string. char is empty
1271    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1272    o modif's to restore TAMC compatibility
1273      - avoid "_d" constructs in PARAMETER declarations
1274      - avoid interrupting lines by comment lines
1275    o Use cluster local disks for purely local I/O
1276      vs. globally visible disks needed for ctrl stuff
1277      (merged from ecco-branch)
1278      - new active_file_loc... and mdsio_..._loc routines
1279      - affected packages: autodiff, ctrl, grdchk, mdsio
1280    
1281    checkpoint51c_post
1282    o introducing integer flag debugLevel
1283      - debLevZero: suppress all output
1284      - debLevA: standard
1285      - debLevB: equivalent to current debugMode=.TRUE.
1286    o introducing pathname variable mdsioLocalDir for mdsio
1287      that can be specified at runtime
1288      (relevant for cluster I/O to local disk)
1289    `
1290    >>>checkpoint51b_post
1291    adjoint of ptracers
1292    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1293    o extended state in checkpoint_lev?, etc.
1294    o alternative ctrl/cost with tr1 or ptracer
1295    o new comlev1_bibj_ptracers
1296    o new ptracers.flow
1297    o made ptracers_forcing same as external_forcing_s
1298    o added verification for adjoint with ptracers
1299      - adm. grdchk fail so far
1300      - tlm. grdchk OK
1301      - checked tapelev/comlev recomputations: OK
1302    <<<checkpoint51b_pre
1303    
1304    checkpoint51a_post
1305    o added code for biogeochemistry package
1306      - new pkgs: dic, gchem
1307      - new subroutine in ptracers
1308    o modify code for biogeo packages
1309      - in model/src and pkg/ptracers
1310    
1311    checkpoint51
1312    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1313      - autodiff, ctrl, exf, grdchk, seaice
1314      kept separate packages
1315      - cost, ecco, obcs
1316    o updating verification/internal_wave, verification/lab_sea
1317      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1318    
1319    checkpoint50i_post
1320    o Preparing next differentiable checkpoint and sync
1321      of MAIN vs. ecco-branch
1322      - 1st step: this one is differentiable
1323      - 2nd step: next(! not this) checkpoint will have updated packages
1324                  from ecco-branch)
1325    
1326    checkpoint50h_post
1327    o new package "land": provide surface BC for AIM.
1328    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1329    o AIM: use true log-P extrapolation for near surface temp (= as in
1330        F.Molteni paper) ; update aim.5l_cs output.
1331    o New variable in PARM03 for more flexible pickups
1332    o somewhat cleaned package initialisation sequence for
1333      ctrl/ cost/ ecco/ in packages_... routines
1334    
1335    checkpoint50g_post
1336    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1337      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1338      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1339        made the default because of faster convergence than ADI
1340    
1341    checkpoint50f_post
1342    o exf totally restructured
1343      - replaced all exf_set_ routines by one generic exf_set_gen.F
1344        and made sure it's still differentiable
1345      - split exf_getffields.F into new exf_bulkformulae.F
1346      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1347      - updated adjoint/makefile and relevant verif. accordingly
1348    
1349    checkpoint50f_pre
1350     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1351          + change Evap over land. (update aim.5l_cs output)
1352     o added missing .cvsignores and made uniform across expts
1353     o changed configuration of tidal_basin_2d expt
1354     o added pkg/debug functions for tracing code in fatal crashes
1355     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1356     o new fn in pkg/monitor to stop model if solution grows too big
1357     o removed lots of single quotes from comments
1358    
1359    checkpoint50e_post
1360    o make KPP work with PTRACERS
1361     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1362       nearly a copy of kpp_transport_s
1363     - there is no analogue to SurfaceTendencyS, so I have to use
1364       gPtr(of the surface layer) instead
1365    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1366    checkpoint50e_pre
1367    
1368    checkpoint50d_post
1369    o change kpp output from multiple-record state files to single-record state
1370      files analogous to write_state.F
1371    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1372      analogous to the cg2d-related output.
1373    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1374      so that writing to internal file fn (with length 512) fails.
1375    checkpoint50d_pre
1376    
1377    checkpoint50c_post
1378    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1379    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1380    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1381    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1382    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1383    
1384    checkpoint50c_pre
1385    Merging from release1_p13:
1386    o bug fix for pkg/seaice dynamic solver
1387    o Added SEAICE_initialHEFF to pkg/seaice
1388    
1389    checkpoint50b_post
1390    o store u*,v* in gU,V instead of in guNm1,gvNm1
1391    o in order to put the momForcing out of the Adams-Bashforth:
1392      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1393      to timestep.F
1394    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1395    o re-generate output for highly sensitive test-exp:
1396       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1397    
1398    checkpoint50b_pre
1399    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1400    o corrected CPP option mismatch in exf_Bulk... functions for case
1401      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1402    
1403    checkpoint50a_post
1404    o Bug fix for merging between c50 and KPP.
1405      ikey was passed from thermodynamics to kpp_calc via
1406      common block rather than being recomputed in kpp_calc,
1407      in contradiction with new key itdkey.
1408      New key ikppkey created, and tamc.h headers updated.
1409    
1410    checkpoint50
1411    - 2nd step of merge with ecco-branch:
1412      merge changes in ecco-branch back into main trunk
1413    - bug fix in find_alpha
1414    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1415    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1416    - merged some sliced AD support routines
1417    
1418    checkpoint49
1419    merged from ecco-branch:
1420    o exf:
1421      - Enable initialisation of forcing fields to constant
1422        (runtime) values.
1423      - in exf_getffields.F
1424        Reduce i-/j-loop to interior domain, discarding overlaps.
1425        That also fixes wrong TAF-key computations for key_1, key_2
1426        with bulf formulae.
1427      - exf_init.F modify #ifdef for exf_init_evap
1428      - exf_getffieldrec.F, ctrl_getrec.F
1429        The following INT-usages are not safe:
1430          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1431          fldcount = int(fldsecs/fldperiod) + 1
1432        and were modified.
1433    o autodiff: checkpoint_lev...
1434      - updated storing for bulk formulae (some arrays were missing)
1435      - added state for seaice package
1436      - synchronized with main branch
1437    o DIVA:
1438      Modif.s in
1439      - the_main_loop.F
1440      - the_model_main.F
1441      and added cost_final_restore.F cost_final_store.F
1442      o With these changes, it is possible to fully separate
1443        the first forward run to compute the cost function (mdthe_main_loop)
1444        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1445        into separate model executions.
1446        This enables better tuning of DIVA to given queue sizes.
1447      o Loss of cost function value in consecutive DIVA runs is
1448        fixed by storing to 'costfinal' file.
1449      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1450        beginning/end of adjoint integration is accounted for.
1451      The current changes apply to TAF-1.4.26.
1452      TAF has one remaining bug, requiring one manual change
1453      (see MITgcm manual).
1454    o cal: synchronized between MAIN and ecco-branch
1455    
1456    checkpoint48i_post
1457    o Changes to restore differentiability of code w.r.t. previous tag
1458      (mostly adding new routines to make list and replacing
1459      pressure by totPhiHyd).
1460    o Updated and merged grdchk package
1461      - has both ADM and TLM checks
1462      - works for single- and multi-proc.
1463      - output cleaned
1464      - worked successfully for parallel DIVA
1465    o genmake:
1466      - Adding -platform=SP4
1467      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1468    o Modif. for DIVA:
1469      ctrl_unpack should not be called in intermediate DIVA interval.
1470      (similar thing would apply for active files such as
1471      tbar, sbar, psbar, which should not be reinitialised;
1472      only relevant for ecco-branch)
1473    
1474    checkpoint48h_post
1475    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1476    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1477    o Added SEAICE_initialHEFF to pkg/seaice
1478    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1479    
1480    checkpoint48g_post
1481    --- EOS:
1482    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1483      store total Potential in totPhyHyd for diagnostics & EOS.
1484    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1485    --- Pressure/geopotential gradient:
1486    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1487    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1488      ( changes results of global_ocean_pressure )
1489    o NLFS + z-coord.: add eta*Rho' contribution.
1490    o accurate phiHyd when using interface-W at the middle between 2 centers
1491     ( changes results of ideal_2D_oce )
1492    o includes r* 2nd term in potential gradient.
1493    
1494    checkpoint48f_post
1495    Merging from release1_p12:
1496    o Modifications for using pkg/exf with pkg/seaice
1497      - improved description of the various forcing configurations
1498      - added basic radiation bulk formulae to pkg/exf
1499      - units/sign fix for evap computation in exf_getffields.F
1500      - updated verification/global_with_exf/results/output.txt
1501    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1502      (SBO) core products, including oceanic mass, center-of-mass,
1503      angular, and bottom pressure (see pkg/sbo/README.sbo).
1504    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1505      to avoid negative values in shallow regions.
1506      - updated verification/natl_box/results/output.txt
1507      - updated verification/lab_sea/results/output.txt
1508    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1509    o Added useSingleCpuIO option (see PARAMS.h).
1510    o Updated useSingleCpuIO option in mdsio_writefield.F to
1511      work with multi-field files, e.g., for single-file pickup.
1512    o pkg/seaice:
1513      - bug fix in growth.F: QNET for no shortwave case
1514      - added HeffFile for specifying initial sea-ice thickness
1515      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1516    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1517      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1518    o pkg/seaice:
1519      - adjoint-friendly modifications
1520      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1521    
1522    checkpoint48e_post
1523    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1524    o dynamics: change definition of computational domain & adapt mom_fluxform
1525      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1526    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1527        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1528        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1529        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1530        inverted_barometer solid-body.cs-32x32x1
1531      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1532    
1533    checkpoint48d_post
1534    o in preparation for r*:
1535     a) use pre-computed gradient of hydrostatic potential:
1536        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1537     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1538        => affects results of glob_oce_pressure (different truncation error)  
1539      update output.txt of ideal_2D_oce & global_ocean_pressure
1540    
1541    checkpoint48d_pre
1542    o in preparation for r*:
1543      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1544      pass the 2 comp. of the grad. as arguments to momentum S/R.
1545      but for the moment, only used if it does not change the results.
1546    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1547    
1548    checkpoint48c_post
1549    Modifications in treatment of initial flux forcing controls
1550    to avoid extra storing of flux fields.
1551    
1552    checkpoint48c_pre
1553    o Added tidal_basin_2d experiment (currently 1D!)
1554    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1555    
1556    checkpoint48b_post
1557    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1558     (modification to pressure gradient not yet implemented)
1559    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1560      (for U & V) that are used for vertical advection of momentum.
1561    
1562    checkpoint48a_post
1563    o In preparation for r*, use temp. array to compute vertical transport
1564       in flux-form momentum pkg. => change results of few test-exp.
1565      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1566                        lab_sea, natl_box & plume_on_slope
1567    
1568    checkpoint48
1569    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1570    
1571    checkpoint47j_post
1572    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1573    o moved adexch from forward_step to addummy_in_stepping
1574    o added exch in ctrl_map_...
1575    o aveFreq.=0. at end of cost_final to avoid overwrite in
1576      reverse checkpointing loop
1577    o Yet more changes in gmredi:
1578      * adgmredi_calc_tensor
1579        avoiding all recomputation of gmredi_slope_limit
1580      * adgmredi_x/y/rtransport
1581        added flag for excessive storing to avoid recomp. of
1582        u/v/rtans, dTdx/y/z
1583        -> this is not really necessary and very memory-consuming
1584      * adgmredi_slope_psi:
1585        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1586      * gmredi_slope_limit
1587        re-activated full calculation of taperfct for case 'ac02'
1588    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1589    
1590    checkpoint47i_post
1591    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1592    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1593      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1594    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1595    o gmredi: fix few bugs.
1596    
1597    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1598    This will be a good checkpoint to plug into the ecco-branch.
1599    o few modif.'s to get latest version adjointed
1600      (mainly kick out code in ini_linear_phisurf)
1601    o modif's to run adjoint with exactConserv
1602    o case GM_BOLUS_ADVEC should be cleaned
1603      S/R gmredi_slope_psi should be cleaned
1604    o verification/carbon now has exactConserv=.TRUE.
1605    
1606    checkpoint47g_post
1607    o time-average AIM output: becomes independent from statvars time-average
1608      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1609    o After TAF bug fix:
1610      Tested adjoint of gmredi package.
1611      Tests were done with checkpoint47 rather than with latest
1612      checkpoint47f_post since the latter is broken for the adjoint
1613      verification/carbon/ contains both ADM and TLM gradient checks.
1614    Here they are, before they get changed/lost/stolen.
1615    Mostly modif.'s to fix numerical sensitivities.
1616    Gradient checks OK for
1617    - GM_taper_scheme:
1618      * clipping
1619      * ac02
1620      * linear
1621      * glw91
1622      * dm95
1623      * ldd97
1624    - GMREDI_OPTIONS:
1625      * GM_VISBECK_VARIABLE_K
1626      * GM_NON_UNITY_DIAGONAL
1627      * GM_EXTRA_DIAGONAL
1628      * GM_BOLUS_ADVEC
1629    in conjunction with data.gmredi parameters to be checked in
1630    in a few minutes under verification/carbon/code/
1631    
1632    checkpoint47f_post
1633    Merging from release1_p10:
1634    o modifications for using pkg/exf with pkg/seaice
1635      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1636        and SEAICE_EXTERNAL_FLUXES
1637      - pkg/exf CPP options EXF_READ_EVAP and
1638        EXF_NO_BULK_COMPUTATIONS
1639      - usage examples are Experiments 8 and 9 in
1640        verification/lab_sea/README
1641      - verification/lab_sea default experiment now uses
1642        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1643    
1644    checkpoint47e_post
1645    o created a tag prior to creating a branch
1646    
1647    checkpoint47d_post
1648    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1649      at the bottom boundary had an erroneous half slip boundary condition
1650    o added bottom drag and no slip boundary condition capabilities to
1651      oceanic pressure coordinates code
1652    o added new verification experiment global_ocean_pressure, this experiment is
1653      also described in the tutorial section of the manual
1654    checkpoint47d_pre
1655    
1656    checkpoint47c_post
1657    o Added a verification experiment for a global cubed-sphere ocean run
1658      -  verification/global_ocean.cubed32x32x30
1659      -  uses pkg/therm_seaice and pkg/bulk_forcing
1660    
1661    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1662    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1663      when using P-coordinate; only implemented for atmospheric config.
1664    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1665      NOTES: requires option NONLIN_FRSURF to be "#define".
1666    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1667    
1668    checkpoint47b_post
1669    Merging from release1_p9:
1670    o pkg/seaice
1671      - removed GOTO's and added taf directives
1672      - double precision constants to reduce the g77 (Linux)
1673        to F77 (SGI) differences reported in release1_p8
1674    o tools/genmake
1675      - added SGI options
1676    o verification/testscript
1677      - updated to that of checkpoint47a_post
1678    o verification/global_ocean.90x40x15/input/eedata
1679      - modified for SGI f77 compatibility
1680    o verification/lab_sea
1681      - added description of sea-ice model
1682      - added missing matlab routines
1683      - added test of thermodynamics parallelization
1684    
1685    checkpoint47a_post
1686    o new pkg: aim_v23
1687     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1688       for now, keep the same surface forcing as before.
1689     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1690     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1691     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1692    o add diagnostic of surface correction term in monitor output
1693    
1694    o bulk_force and therm_seaice
1695    - Two packages:  bulk_force (Bulk forcing)
1696      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1697    - Earlier integration from Stephaine Dutkiewicz
1698      and Patrick Heimbach.
1699    - Two ifdef statements for compile time,
1700       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1701    
1702    checkpoint47
1703    differentiable version of checkpoint46n_post
1704    o bug fix in quasihydrostaticterms
1705    o * "clean" adjoint code (in terms of extensive recomputations)
1706        can now be obtained for all GMREDI options (i.e. for
1707        - GM_VISBECK_VARIABLE_K
1708        - GM_NON_UNITY_DIAGONAL
1709        - GM_EXTRA_DIAGONAL
1710        - GM_BOLUS_ADVEC )
1711      * However, wrong gradient check problem remains unsolved.
1712      * New CPP options have been introduced for different
1713        tapering schemes
1714    o external_fields_load now part of differentiation list
1715    o pressure needs multiple storing;
1716      would be nice to have store_pressure at beginning or
1717      end of forward_step, e.g. by having phiHyd global (5-dim.)
1718      (NB: pressure is needed for certain cases in find_rho,
1719      which is also invoked through convective_adjustment).
1720    o recomputations in find_rho for cases
1721     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1722    o #define ATMOSPHERIC_LOADING should be differentiable
1723    o ini_forcing shifted to begining of initialise_varia
1724    o Incorporating QNVS line search routines into MITgcm
1725      (this is separate code, and therefore not under pkg)
1726      lsopt/, optim/
1727    o Updated verification/carbon/
1728      - #define GM_VISBECK_VARIABLE_K
1729      - GM_taper_scheme    = 'ldd97'    
1730    
1731    checkpoint46n_post
1732    Merging from release1_p8:
1733    o verification/natl_box:
1734      updating new external_fields_load routine
1735    o New package: pkg/seaice
1736      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1737      The sea-ice code is based on Hibler (1979-1980).
1738      Two sea-ice dynamic solvers, ADI and LSR, are included.
1739      In addition to computing prognostic sea-ice variables and diagnosing
1740      the forcing/external data fields that drive the ocean model,
1741      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1742      The implied surface heat flux is then stored in variable
1743      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1744      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1745      non-local transport term.  Because this call precedes model
1746      thermodynamics, temperature under sea-ice may not be "exactly" at
1747      the freezing point by the time theta is dumped or time-averaged.
1748      N.B.: fairly large differences in accuracy occur across
1749            different platforms/compilers; comparison between
1750            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1751            generated output gives:
1752       T           S           U           V
1753      C D M    c        m  s        m  s        m  s        m  s
1754      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1755      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1756      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1757    
1758      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1759    o GAD:
1760      - generated new common blocks to account for call of
1761        same gad routines with differing traceridentities
1762        (needed to modify tracerIdentity indices in GAD.h)
1763      - generated separate common blocks for case useCubedSphereExchange
1764        (Department of Futurology)
1765      - parameter lists to gmredi_?transport: added tracerIdentity
1766      - added new key indices to tamc.h
1767    o external_fields_load:
1768      - added this routine to TAF list
1769      - needed to make some common blocks global and additional storing
1770        along the same lines as exf package (checkpoint_lev?_directives.h)
1771    o exf:
1772      updated external forcing package
1773      - bug fixes carried over from ecco-branch
1774        (missing OBCS_OPTIONS.h in two routines)
1775      - enable easy to use "no forcing".
1776      - added exf I/O for atmospheric loading
1777      - added exf I/O for runoff data
1778      - transfered scaling between exf <-> MITgcm to exf namelist
1779    o Adding new verification experiment global_with_exf.
1780      This verification experiment is almost identical to the
1781      global_ocean.90x40x15 experiment, except that it uses
1782      the exf (and cal) package instead of the
1783      external_fields_load routine (cf README file).
1784    
1785    checkpoint46m_post
1786    o modified testscript to return -- when there are no lines of "%MON" output
1787    o added new flag "quasiHydrostatic" for QH mode
1788      and new routine quasihydrostaticterms()
1789    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1790      New routine: mom_u_coriolis_nh()
1791    o fixed sign of non-hydrostatic metric terms in u and v equations.
1792      Depend on correct sign of gravitySign.
1793    o added work.pc* to .cvsignore in aim directories using ifc
1794    o introduced flag for controllin non-hydrostatic metric terms
1795    o removed gravitySign from PARM04
1796    o switched to g77/ifc from pgf77 in aim experiments
1797    
1798    checkpoint46l_post
1799    o made convective adjustment work with pressure coordinates:
1800     - changed the direction of k-loop in convective_adjustment.F for the
1801       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1802     - adjusted the reference pressure k-index in convective_adjustment.F
1803     - adjusted the convection condition in convect.F (in analogy to
1804       calc_ivdc.F)
1805     - convective_adjustment no longer computes anything on the halos
1806     - removed the warnings about negative salinity from find_rho.F and
1807       find_alpha.F; instead the new routine look_for_neg_salinity, called
1808       at the beginning of find_rho, find_alpha, and find_beta, does a
1809       check of the entire slice, if CPP-option
1810       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1811    checkpoint46l_pre
1812    
1813    checkpoint46k_post
1814    o fixed the verification/global_ocean.90x40x15 experiment:
1815     - new bathymetry (the world according to A., JMC, and M.)
1816     - new initial fields and forcing fields (*.bin files)
1817     - new POLY3.COEFFS (for the next release one should switch to a full
1818       equation of state: JMD95P or MDJWF)
1819     - fixed several errors and redundancies in the data file
1820     - experiment uses looped cells
1821     - added matlab directory with diagnostic scripts for plotting of output
1822    
1823    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1824     - read AIM physics parameters from a file (data.aimphys)
1825     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1826    
1827    checkpoint46j_post
1828    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1829    o move wVel computation at the end of the time step, in S/R integr_continuity
1830    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1831    o update timeave pkg for wVel diagnostic.
1832    checkpoint46j_pre
1833    
1834    checkpoint46i_post
1835    o Clean up AIM package (and keep the results unchanged):
1836      include CPP_OPTION and use IMPLICT NONE in all routines ;
1837      declare all the variables _RL ; use _d 0 for all numerical constants.
1838      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1839    
1840    checkpoint46h_post
1841    o cleaned up the use of rhoNil and rhoConst.
1842      - rhoNil should only appear in the LINEAR equation of state, everywhere
1843        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1844        and the dynamical equations are all divided by rhoConst
1845    o introduced new parameter rhoConstFresh, a reference density of fresh
1846      water, to remove the fresh water flux's dependence on rhoNil. The default
1847      value is 999.8 kg/m^3
1848    o cleanup up external_forcing.F and external_forcing_surf.F
1849      - can now be used by both OCEANIC and OCEANICP
1850    checkpoint46h_pre
1851    
1852     Added code to convert surface volume flux (fresh water) into
1853     a mass flux when using P coordinates in the ocean (OCEANICP).
1854     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1855    
1856    checkpoint46g_post
1857    o Include a new diagnostic variable phiHydLow for the ocean model
1858      - in z-coordinates, it is the bottom pressure anomaly
1859      - in p-coordinates, it is the sea surface elevation
1860      - in both cases, these variable have global drift, reflecting the mass
1861        drift in z-coordinates and the volume drift in p-coordinates
1862      - included time averaging for phiHydLow, be aware of the drift!
1863    o depth-dependent computation of Bo_surf for pressure coordinates
1864      in the ocean (buoyancyRelation='OCEANICP')
1865      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1866        Theta, Salinity, and Pressure in the parameter list. This routine is
1867        presently contained in find_rho.F. This routine does not give the
1868        correct density for 'POLY3', which would be a z-dependent reference
1869        density.
1870    o cleaned up find_rho
1871      - removed obsolete 'eqn' from the parameter list.
1872    o added two new verification experiments: gop and goz
1873      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1874    checkpoint46g_pre
1875    
1876    checkpoint46f_post
1877    o Enable tangent linear (forward mode) gradient checks:
1878      - extended active file handling to g_... files
1879      - added TANGENT_SIMULATION to theSimulationMode
1880      - extended grdchk package accordingly
1881    o added tangent linear setup in verification/carbon/code_ftl
1882    o added adjoint setup in verification/front_relax/code_ad
1883    
1884    checkpoint46e_post
1885    o Added new equation of state -> MDJWF
1886      - EOS of McDougall et al., 2002, JAOT, submitted
1887      - caveat: the equation of state is only valid for a smaller (more
1888        realistic?) range of values than JMD95P/Z and UNESCO
1889      - added masks to the calculation of pressure in store_pressure
1890      - added more check values for density in check_eos (ini_eos.F), some of
1891        the old check values are out of the range of the MDJWF-eos, so don't
1892        expect perfect matches for those
1893    checkpoint46e_pre
1894    
1895    checkpoint46d_post
1896    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1897      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1898      case of pressure coordinates. eosType='JMD95Z' in
1899      combination with buoyancyRelation='OCEANICP' now causes an error.
1900    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1901      in find_alpha/beta.
1902    checkpoint46d_pre
1903    
1904    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1905      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1906    
1907    checkpoint46c_post
1908    o Changes necessary for ocean in p-coordinates
1909     -  Added new buoyancy relation = 'OCEANICP'
1910     -  Added new parameters = gravitySign (this used to be contained inside
1911        the factor dRdZ which I added when we first switched to R coordinates).
1912     X GM/Redi is not compatible (yet)
1913     X bottom drag and no-slip need to be debugged.
1914    checkpoint46c_pre
1915    
1916    checkpoint46b_post
1917    o Added new equation of state -> JMD95Z and JMD95P
1918      - EOS of Jackett and McDougall, 1995, JAOT
1919      - moved all EOS parameters into EOS.h
1920      - new routines ini_eos.F, store_pressure.F
1921    o Added UNESCO EOS, but not recommended because it requires
1922      in-situ temperature (see JMD95)
1923    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1924      unesco.f to be used with POLY3
1925    checkpoint46b_pre
1926    
1927    checkpoint46a_post
1928    o Added (atmospheric) pressure loading
1929      - new field in FFIELDS.h, etc...
1930      - new cpp flag ATMOSPHERIC_LOADING
1931    o Changed hFacC to _hFacC in calc_phi_hyd.F
1932    o Added SHORTWAVE_HEATING to some files for consistency
1933    checkpoint46a_pre
1934    
1935    checkpoint46
1936    further merges from release1_p5
1937    o new ctrl package
1938      - adopted from ECCO environment to enable optimization
1939      - added Eliassen Palm fluxes to controls
1940    o added Eliassen Palm flux controls to gradient check package
1941    o cost package
1942      - Compatible with new ctrl package
1943      - added Eliassen Palm cost hooks
1944      - modif's of existing cost functions
1945    o Adjoint-related bug fixes in kpp:
1946      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1947      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1948    o autodiff package
1949      - flow directives:
1950        + new for S/R do_the_model_io
1951        + enhanced for S/R checkpoint
1952        + new gmredi.flow
1953      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1954        disable adcommon.h/g_common.h by default.
1955      - fixed problem for adjoint of global_max
1956    o modified verification/carbon/
1957    o New setup for adjoint of global_ocean
1958    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1959    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1960    o incorporated hooks for sponge layer code (external_forcing.F)
1961    
1962    checkpoint45d_post
1963    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1964    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1965      (affects plume_on_slope "cg2d" output)
1966    o add new parameter deltaTfreesurf for free-surface time stepping
1967    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1968    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1969    o change phiMin in exp1 (to agree with documentation)
1970    o add new flags:
1971     - T,S forcing inside/outside Adams-Bashforth
1972     - turn off temp,salt advection and/or forcing
1973     - for each tracer, define internal flag for multiDimAdvection & A-B
1974    o monitor: change definition of KE to check conservation of Energy
1975    
1976    checkpoint45c_post
1977    o Removed f90 comments ("!")
1978    o Modified initialisations to enable exf package for MITgcm
1979      (without invoking ECCO_PACKAGE).
1980    o modifications to gradient check package (Martin Losch)
1981      - enable centered differences
1982      - modified format of standard output
1983    
1984    checkpoint45b_post
1985    o cleaned exchange calls in cg2d
1986    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1987    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1988      to configure barotropic setup (Martin Losch)
1989    o moved some initialisations within bi,bj loop in dynamics
1990      (TAF flow dependency)
1991    o in initialise_varia, moved call packages_init_variables
1992      before convective_adjustment_init
1993      (corresponding adjustment of TAF tape initialisation).
1994    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1995    
1996    checkpoint45a_post
1997    o compute Rho over the whole domain (extend iMin,jMin indices)
1998    o specific exchange for X-slice domain (case Ny=1)
1999    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
2000    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
2001    
2002    checkpoint44h_post = checkpoint45
2003    o Fix to restore differentiability:
2004      place at which packages_init_variables is called in
2005      initialise_varia is crucial for reverse control flow.
2006    o modifications in GMRedi to enable stable adjoint
2007      (corresponding modif's in thermodynamics, dynamics)
2008    o added missing hook for sponge layer code in external_forcing
2009    o modified test cost functions
2010    o storing in gad_advection (plus removal of write(0,*)!
2011    o missing headers TR1.h added in convective_adjustment routines
2012    o errorMessageUnit set non-equal zero in eeboot
2013      (conflict on some platforms, e.g. IBM SP3)
2014    o modified carbon verif.
2015    
2016    checkpoint44h_pre
2017    o vertical grid option: allow to put the Interface at the middle between
2018      2 cell-centers ; replace delZ in pkg/kpp by drF.
2019    o GM Advective form: Tracers are advected using the residual transport (=
2020      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
2021    
2022    checkpoint44g_post
2023    o fix surface correction term in multiDimAdvection (affects plume_on_slope
2024      results) ; ifdef missing in thermodynamics.F
2025    
2026    checkpoint44f_pre,checkpoint44f_post
2027    o added PTRACERS package
2028      This allows an arbitrary number of passive tracers to be integrated
2029      forward simultaneously with the dynamicaly model.
2030      + Implemented so far:
2031        - basic forward algorithm (time-stepping, advection, diffusion, convection)
2032        - I/O and checkpointing
2033        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
2034      + Not implemented so far:
2035        - KPP
2036        - OBCS
2037      + No specific example supplied (yet) but global_ocean.90x40x15 has the
2038        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
2039        line in data.pkg.
2040      + This package is disabled by default since it increases storage.
2041    
2042    
2043    o testscript: added -cleanup option
2044    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
2045                 b) enable to filter 2D fields.
2046    
2047    checkpoint44e_pre,post
2048    o re-wrote convective adjustment to use pre-calculated weights
2049      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
2050      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
2051      Original calls to convect() still in place.
2052    
2053    chkpt44d_pre,post
2054    o added missing EXCLUDE_MONITOR flags
2055    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
2056      (incompatible typ in MIN/MAX expressions caused problems
2057      on IBM SP3)
2058    o in genmake added variable MAKEDEPEND
2059      plus resetting for case SunOS
2060    o added timer_stats.c routine for IBM SP3
2061    o removed variables in dynamics
2062    !!! I forgot to create tag chkpt44d_pre !!!
2063    !!! But chkpt44d_pre = chkpt44c_post    !!!
2064    
2065    o real fresh water flux implemented with non-linear free-surface.
2066    
2067    chkpt44c_pre,post
2068    o few fix (mask in shap_s2, EmPmR in external_field_load,
2069      USE_NATURAL_BCS in solve_for_P);
2070    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
2071    
2072    checkpoint44b_pre/_post
2073    o merge of relevant stuff from the ecco-branch:
2074      - genmake: removed $S64 overwrite for case SunOS
2075      - pkg/exf: update and corrections for field swapping and obcs
2076      - pkg/ecco: parameter lists for the_model_main, the_main_loop
2077                  harmonized between ECCO and MITgcm
2078      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
2079                      updated checkpointing_lev... lists for obcs
2080      - model/src: minor changes in forward_step, plot_field
2081                   added directive for divided adjoint in the_main_loop
2082      - pkg/mdsio: added mdsio_gl_slice
2083    
2084    o check parameters & config (chkpt44a_pre,post)
2085    o OBC and NonLin_FrSurf.
2086    
2087    checkpoint44
2088    o fix bug in mom_vi_del2uv
2089    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
2090    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
2091    o update AIM experiments (NCEP input files)
2092    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
2093    o added some stuff for AD
2094    
2095    checkpoint43
2096    o added two new advection tests
2097    o added global 4x4 degree ocean test
2098    o added test of H&S94 with free surface on cube
2099    o some final mods for gradient check, adjoint,...
2100    
2101    checkpoint42
2102      Fixed AD-related problems:
2103    o Store directives up-to-date with re-arranged Adams-Bashforth
2104      (mainly thermodynamics.F)
2105    o New store directives for multi-dim. advection schemes
2106      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
2107      * new common block and key passkey
2108      (mainly gad_advection.F)
2109    o Modified store directives for split of dynamics/thermodynamics
2110      for the case ALLOW_KPP
2111    o Cleaned argument list for timestep_tracer.F
2112    
2113    checkpoint41
2114    o re-formatted/added comments in prologues of key subroutines
2115      to work with protex
2116    
2117    checkpoint40
2118    o moved calc_gs, calc_gt and calc_tr1 back to model/src
2119    o added FLT (floats) package from Arne along with demo. experiment
2120    o re-arranged Adams-Bashforth scheme for tracers to allow easier
2121      implementation of forward-in-time forcing terms
2122    o more mods for non-linear free-surface including new variable
2123    o modified multi-dim method to work on cube
2124    o bug fix in KPP (from DM)
2125    
2126    checkpoint40pre9
2127    o added DST advection schemes
2128    o fix MPI bug on SGI's
2129    o modifications for non-linear free-surface
2130    o fixed conditionals for fixed flow/passive tracer only mode
2131    o added tension/strain form of stress tensor
2132    o changes to commenting of arguments for TAF/TAMC
2133    o added/updated many matlab scripts
2134    o added multi-dimensional advection method for tracers
2135      
2136    checkpoint40pre8
2137    o new package rw/
2138      Added method for dumping intermediate local arrays:
2139      mdsio_writetile - same as mdsio_writefield except works from inside
2140                        bi,bj loop
2141      mdsio_writelocal - same as mdsio_writetile except works for local
2142                         arrays
2143      write_local_r? - higher-level wrapper for mdsio_writelocal
2144      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2145      Example given at end of mom_vecinv.F that dumps some local arrays.
2146    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2147      control flux-form versus vector invariant code.
2148      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2149      or genmake -DISABLE ...
2150    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2151      (additional storing is now needed for case vecinv;
2152      currently nothing implemented to switch this storing off
2153      in case fluxform is used since no CPP flag available).
2154    
2155    checkpoint40pre7
2156    o bug fix in dynamics.F
2157      calc_viscosity called before k=1,Nr loop.
2158    o added some #ifdef's ALLOW_PASSIVE_TRACER
2159    o cleaned initialisations in ctrl_map_ini
2160      related to TAF
2161    
2162    checkpoint40pre6
2163    o split dynamics into thermodynamics & dynamics
2164    o corresponding split of calc_diffusivity into
2165      calc_diffusivity, calc_viscosity
2166      (kpp_calc_diff, kpp_calc_visc).
2167    o Added diffkr, kapgm to control variables
2168    o bug fix in gmredi_slope_limit for ldd97
2169    
2170    checkpoint40pre5
2171    o proper initialization of Adams-Bashforth time stepping
2172      + uses forward step for very first step of model (iter=0)
2173    o re-generated *all* output since almost all output is modified by this
2174      change (sorry but we've been putting this one off for about 2 years)
2175      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2176        *not* regenerated since they are already out of date and I don't
2177        want to create the impression that they are suddenly working.
2178    o removed KAP stuff for DEC's
2179    o modified/added many .cvsignore files in */code and */input
2180    o added new expt "solid-body.cs-32x32x1"
2181      + this uses an alternative form of ini_curvilinear_grid.F which
2182        is not necessarily any better than the current one...
2183    
2184    checkpoint40pre4
2185    o added re-initialisations of utrans,vtrans,rtrans in
2186      calc_common_factors which are crucial for TAF.
2187    o extended iMin,jMin range for calc_common_factors,
2188      calc_diffusivity
2189    o added option ALLOW_PASSIVE_TRACER
2190    o a few minor updates and fixes
2191    
2192    checkpoint40pre3
2193    o created calc_gtr1.F for gad package
2194    o split the_main_loop and re-introduced forward_step
2195    o some recomputations of nIter0 for TAMC
2196    
2197    checkpoint40pre2
2198    o Updated to latest branch of AJA, JMC
2199    o Added gradient check package
2200    o Added routines for passive tracer handling
2201    o Added carbon sequestration sensitivity experiment
2202    
2203    checkpoint39
2204     o Modifications and fixes to support TAMC
2205       (mainly missing or wrong directives)
2206     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2207       in addummy_in_stepping
2208     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2209     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2210     o Included following packages:
2211       cal: calendar
2212       exf: external forcing
2213       ecco: essential routines to control use of cal, exf
2214             (NB: this is not the full ECCO environment)
2215     o disabled some packages by default in genmake
2216    
2217    checkpoint38
2218     o see notes_c37_adj.txt
2219     o corrected wrong layer index in external_forcing_t
2220     o replaced the_main_loop/forward_step by the_main_loop
2221     o removed forceoutput from write_state
2222       (replaced criteria for initial/final state)
2223     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2224    
2225    checkpoint37
2226     o mdsio.F routine split and packaged in pkg/mdsio
2227       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2228        used unless genmake -disable=mdsio)
2229     o allow a more precise surface-geopotential gradient for the atmosphere
2230       taking into account the change in space of Alpha (=1/rho) at the surface.
2231     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2232       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2233     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2234       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2235       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2236     o Time-Average diagnostics defined as a pseudo package "timeave".
2237     o pickup files : old pickup (before c35) did not work with new code (c35
2238       and after) unless activating 2 commented lines in initialise-varia.
2239     o Non-Hydrostatic pickup file Pb fixed.
2240     o bug with Rigid-lid version (since c35) fixed.  
2241    
2242    checkpoint36
2243     o implement Crank-Nickelson barotropic time-stepping
2244     o recover Time-Average diagnostics
2245     o fix Pb in checkpoint (PR#19)
2246     o AIM become a standard package ; clean unused CPP_kees
2247    
2248    checkpoint35
2249     o subtantial rewrite of dynamics.f
2250     o allows staggered time-stepping
2251     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2252     o added bottom drag (linear + quadratic)
2253    
2254    checkpoint34
2255     o Modified exchange routines for correct reverse simulation.
2256     o Added verification output to comply with bug fix in impldiff.F
2257       as of c33 (exp2, natl_box).
2258     o Corrected store directives in dynamics.F
2259     o Corrected array boundaries in impldiff.F
2260     o Corrected array dimensions in gmredi.
2261       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2262     o Added routine GLOBAL_SUM_INT to global_sum.F
2263     o Added mdsio_gl.F for ECCO purposes.
2264    
2265    checkpoint33
2266     o Fixed bug in lower BC in impldiff.F
2267     o Fixed confusion about units of forcing arrays in FFIELDS.h
2268       namely Fu,Fv,Qnet,Qsw,EmPmR:
2269       - Removed verification/natl_box/code/external_fields_scale.F
2270         (did not differ from that in model/src)
2271       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2272         (see FFIELDS.h for description)
2273       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2274         kpp_calc.F and kpp_transport_t.F
2275       - Removed model/src/external_fields_scale.F and calls to it
2276       - verification/natl_box uses flux data with "atmospheric" sign so
2277         a special version of external_fields_load.F is used to
2278         change the data as it's read in. This way, the arrays
2279         have the right units and signs at all times tha a user could
2280         possibly use them.
2281     o Corrected genmake to delete a temporary file during configuration
2282    
2283    checkpoint32
2284     o Scaling of forcing fields moved from external_forcing.F to
2285       external_fields_scale.F, called directly after loading fields.
2286     o Surface relaxation terms added to surface tendency fields in
2287       extra subroutine.
2288     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2289       fields.
2290     o Changes in GMRedi to comply with packaging structure.
2291     o Modifications and bug fixes in KPP package.
2292     o Verification experiment for KPP added (verification/nat_box/)
2293    
2294    checkpoint31
2295     o Packages interface brought in line with defined standard
2296       -> new routines packages_...F
2297       -> changes in initialise_fixed.F, initialise_varia.F
2298       -> enables initialisation interface for ECCO package
2299     o Rescaling of external forcing fields immediately after read
2300       (removed from external_forcing.F)
2301       -> new: surface_fields_scale.F
2302       -> affects ini_foorcing.F, external_fields_load.F
2303     o Computation of surface tendencies before tendency updates.
2304       -> new: external_forcing_surf.F
2305     o Change of variable names useGMRedi, useKPP, useECCO
2306     o Further changes in dynamics.F, impldiff.F for TAMC
2307     o Tested for experiments 0, 2, 4.
2308       - not yet tested for GMRedi.
2309       - not yet tested for KPP.
2310    
2311    checkpoint30
2312     o Updates for OBCs
2313     o New experiment for test OBCs (internal_wave)
2314     o New output.txt in verification/exp4/results/
2315     o Updates for KPP: calculation of viscosity corrected, new variables
2316       kpp_dumpFreq and kpp_taveFreq
2317     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2318       and entry for T90 in genmake
2319    
2320    checkpoint29
2321     o packaged KPP and GM/Redi
2322    
2323    checkpoint28
2324     o Corrected initialization of hFacMin for difference vertical coordinates
2325     o Modified calculation of partial cell thickness to more robust algorithm
2326     o config_summary.F: replaced write_1D_... by write_0D_...
2327       read_write.F: added subroutines write_0D_...
2328     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2329       included some initialisations required for TAMC.
2330     o routine calc_isoslopes: modified sqrt computation to make it
2331       differentiable for zero argument.
2332     o routines dynamics, impldiff:
2333       included store directives and tape key computations required for TAMC.
2334     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2335    
2336  checkpoint27  checkpoint27
2337   o fixed calc_isoslopes() to so that cancellation of terms in tensor   o fixed calc_isoslopes() to so that cancellation of terms in tensor
2338     formulation works properly with variable resolution.     formulation works properly with variable resolution.

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