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revision 1.121 by heimbach, Tue Jan 21 19:44:45 2003 UTC revision 1.529 by jmc, Mon Aug 1 13:31:57 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    checkpoint57p_post
8    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
9    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
10      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
11    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
12    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
13      (was already the case for dissipation with mom_vecinv,
14       and also the case for grad.PhiHyd when staggered-timeStep)
15      This will allow to put dissipation out-off the AB time-stepping.
16     Unfortunately, affects truncation error. Update output of exp. that "fails"
17      (cg2d matching number) and leave the others for later: front_relax(10),
18      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
19      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
20    
21    checkpoint57o_post
22    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
23      (2) its ready to be documented during the 20050801 DocFest
24    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
25      for ideal_2D_oce and lab_sea on linux_ia32_g77
26    o set to #undef CTRL_SET_OLD_MAXCVARS_30
27      in global1x1_tot/code_seaice_adj to access indices 32, 33
28      (worth another tag)
29    
30    checkpoint57n_post
31    o adding precip control xx_precip 32
32    o adding swflux control xx_swflux 33
33    o Replacing 10 forcing penalty cost routines by 1 generic.
34    o Implementing partitioning in time-mean and variable adjustment
35      for atmos. state.
36    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
37    o in natl_box_adjoint:
38      * updated exp 1 to 10
39        (but does not have time-mean vs. variable split results yet)
40    o updated global1x1/*_seaice_adj/
41      to incorporate latest changes
42    o enable useSingleCpuIO for mdsio vector routines
43      (applies in particular to tapelev I/O)
44    o removed inefficient K-loop in all active_file*control*.F
45    
46    checkpoint57m_post
47    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
48      and advect_cs (use EXCH-2 and standard cs-32 grid files).
49    o pkg/exch2: filling of face-corner halo regions is optional
50      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
51    
52    checkpoint57l_post
53     tag before updating tutorials (pre-release-2)
54    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
55       for output and interpolation of input fields onto model grid)
56    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
57       Affects results of exp. rotating_tank ; update output.txt.
58    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
59          and taking the square quantity and/or using a fraction-weight field.
60    o fix aim_diagnostics_init.F mate numbers.
61    o add mnc output capability to diagnostics/diagstat and update
62      our cvsignore files for the ACSII output generated
63    
64    checkpoint57k_post
65    o lab_sea now uses diagnostics package and provides a suite of
66      new EXF diagnostics output.
67    
68    checkpoint57j_post
69    o exf
70      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
71        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
72        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
73      * extended diagnostics output
74        - now includes all EXF variables
75        - hs, hl moved to common block
76        - separate S/R for diagnostics, called after ctrl vector is added
77        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
78        - EXFqnet contains true Qnet (i.e. includes qsw)
79      * updated verif. lab_sea, global_with_exf
80      * Rearranging hflux (exf_mapfields -> exf_getforcing)
81        to ensure that diagnostics sees a true EXFqnet
82    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
83    o diagnostics pkg: change pointers so that 1 diagnostic can be used
84      several times with different frequencies.
85    o mnc-ify the thsice package as requested by Daniel Enderton
86      - the monitor--MNC output needs work
87      - many attributes need to be added (most are currently blank)
88    o mnc-ify theaim_v23 package as requested by Daniel Enderton
89      - many attributes need to be added (most are currently blank)
90    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
91    o add Sadourny like discretization to the 4th.O vorticity advection scheme
92    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
93      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
94         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
95    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
96     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
97    
98    checkpoint57i_post
99    o Diagnostics package was changed: diagnostic allocation is now deactivated
100      by setting an empty file name in the namelist (used to be by setting 0 frequency)
101    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
102      add 1rst Order upwind vertical Shear.
103    o add a quick fix for A/B checkpointing in OFFLINE mode
104    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
105      end-run around the C/Fortran linking horror in eesup/src/timers.F
106    o added pkg/runclock: allows user to terminate run based on wall clock
107    o added non-hydrostatic scaling parameter: nh_am2
108    o pkg/my82: futile attempt to make results compiler-independent by adding
109      some "_d 0", etc. no effect.
110    o for mnc output, fill the 'T' coordinate var with myTime and create a
111      separate 'iter' variable for iteration count
112    o pkg/diagnostics:
113      add new capability: output of Global/Regional & per-level statistics ;
114      tested against monitor output (including land & thSIce) on various exp.
115    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
116    
117    checkpoint57h_done
118      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
119      data.diagnostics, data.gchem, data.ptracers) is done.
120    
121    o pkg/diagnostics: prepare for Global/Regional statistics.
122      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
123    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
124      and rename it: DIFFERENT_MULTIPLE
125    
126    checkpoint57h_post
127    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
128    o pkg/diagnostics: change output frequency, now in seconds (instead
129      of Nb of iterations). This requires to change data.diagnostics.
130    checkpoint57h_pre
131    
132    o in mnc, let the user create the output dir if both mnc_outdir_date
133      and mnc_outdir_num are false
134    o add fflags() to pkg/diagnostics which allows one to specify, on a
135      per-file basis, the file precision [default behavior is unchanged]
136    o added diagnostics to pkg/kpp, including computation of mixed layer
137      depth based on a temperature/density criterion
138    o updated verification/natl_box to test the new pkg/kpp diagnostics
139    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
140    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
141    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
142      not mnc -- this mistake was found by JMC and is now corrected
143    
144    checkpoint57g_post
145    o add Adams-Bashforth 3rd Order time stepping:
146      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
147      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
148    checkpoint57g_pre
149    
150    o make lambda[Theta,Salt]ClimRelax spatially varying
151      (default remains spatially uniform constant based on tau)
152    o added new control variables
153      * init. uVel, vVel, etanN
154      * lambda[Theta,Salt]ClimRelax
155    o separate masks used for ctrl_pack/unpack 'from write_grid' output
156      (suggested by G. Forget)
157    
158    checkpoint57f_post
159    o add parameter "baseTime" = model base time = time at iteration zero
160      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
161      account for baseTime shift
162    o move Coriolis arrays from PARAMS.h to GRID.h
163    checkpoint57f_pre
164    
165    o mnc-ifying the seaice package
166    o introduced an alternative length scale calculation for use in the limiting
167      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
168    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
169    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
170      as well as grad(vort3).  Made it compatible with both approximate form
171      for the cubed sphere and full form of these gradients.  Added flag
172      useFullLeith to select between approximate and full form.  
173    o add "d0" in getcon.F to reduce differences between compilers/platforms
174      update output.txt of exp. fizhi-gridalt-hs
175    o change port_rand funtion to allow to set the seed.
176    o fix obscure MNC bug involving conversion between reals and integers
177      - it caused no problems with certain (eg. gcc, ifc) compilers but the
178        new version is now more standards-compliant
179    o adjoint-related modifications
180      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
181      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
182      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
183    
184    checkpoint57e_post
185    o Adding eddy stress controls a la Ferreira et al.
186    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
187    
188    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
189      update output.txt of exp. fizhi-gridalt-hs
190    o add more "Z" dimensions and associated coordinate vars to MNC
191    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
192    o parameter calendarDumps: when set, approximate months (30-31 days) and years
193      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
194      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
195      months and years.  Requires pkg/cal.
196    o diagnostics: add pickup functionality
197      - off by default for backwards compatibility
198      - current version only uses MDSIO -- MNC will be added
199    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
200    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
201    
202    checkpoint57d_post
203    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
204    o modify verification/ideal_2D_oce so that it tests the creation of mnc
205      output from the diagnostics package
206    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
207    o make genmake2 more portable by using ".$FS" instead of ".f" for more
208      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
209    o add coordinate variables to the MNC output from the diagnostics package
210    o change MNC-flags default value: true when useMNC=TRUE
211    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
212      the ability (off by default) to read the grid information using MNC
213    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
214    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
215    o do snap-shot diagnostics at the middle of the time-interval (instead of
216      at the end).
217    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
218      new test for AIM with thSIce + slab-ocean
219    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
220    o move state variable diagnostics to the beginning of the time step ;
221      (note: still needs some work specially for snap-shot diagnostics)
222      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
223    
224    checkpoint57c_post
225    o Change testing option (-ieee) to get closer agreement between g77 & ifort
226    o generate new output.txt files on faulks with g77 & the new -ieee option
227    checkpoint57c_pre
228    
229    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
230      update output.txt of exp. global_ocean.90x40x15
231    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
232      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
233    o add saltFlux(+File) forcing capability with periodicExternalForcing
234    o allow to use pkg diagnostics for GM-Redi & ThSIce output
235    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
236    o improvements for the MNC output from DIAGNOSTICS:
237      - correct handling of the unlimitied dimension
238      - all dims now have associated coordinate variables
239      - variables located at U, V, and Corner ("Z") points are now written
240        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
241        *all* data points are output
242    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
243    o added pkg/seaice/seaice_monitor.F
244    o mdsio_readfield.F can now read files visible only to master MPI process.
245    o pkg/seaice: some test code for ice-modified ocean stress
246    o exf_getffields interpolation defaults to bilinear for all scalar forcing
247      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
248      spurious negative numbers for precipitation and humidity.  Will cause
249      some small numerical differences for integrations using pkg/exf/exf_interp.F.
250    o pkg/ctrl/
251      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
252        May be enabled via doPackDiag
253      *  introduce z-scaling of
254         + gradient (doZscalePack) and
255         + control (doZscaleUnpack)
256    o pkg/mdsio/
257      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
258      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
259    
260    checkpoint57b_post
261    o simplify options in diagnostics_fill arguments (remove weird combinations)
262    o fix MNC coordinate variables so that they now contain per-face index
263      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
264      general, EXCH2 grids are only aligned to a "local" coordinate system
265    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
266    o Implement instantaneous output within pkg diagnostics:
267      setting a negative frequency in data.diagnostics produces
268     "snap-shot" output (as opposed to time-average if freq > 0)
269    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
270      NOTE: change ptracer diagnostics name: use 2 characters to work with
271            more than 9 tracers. Add also diagnostics of advect & diffus flux.
272    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
273      becomes the coordinate variable for the 'T' dimension
274    o add CF-style coordinate variables to MNC
275      - just a first cut:  numbers are meaningless on the cubesphere and
276        missing along the T axis but otherwise it works!
277    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
278    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
279    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
280      this is based directly on what the model compute, so that the content of
281      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
282    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
283    o clean up build options files for SunOS, in particular
284      - remove -traditional from xmakedepend
285      - change -xarch=v9 to -xarch=native for f77
286      - restore use of make (not gmake)
287      - add CC=gcc if using g77
288    o changes per discussion of AM, JMC, & EH3 today:
289      - move redundant "grid" variables out of "state" -- in preparation of
290        creating proper CF-style coordinate variables and in recognition
291        that any/all grid variables can be easily copied (eg. w/NCO) from
292        the grid files into any of the other NetCDF files
293      - *always* output grid variables with MDSIO (this will eventually be
294        changed)
295      - output MNC grid file if useMNC is true
296    o every instance of _END_MASTER() has been found and replaced with
297      _END_MASTER( myThid ) in order to satisfy certain picky Sun
298      preprocessors
299    o re-arrange diagnostics pkg initialisation:
300     - allow each package to extend the available diagnostics list
301     - add some checking and fix small problems (multi-threaded, ...)
302     - new S/R diagnostics_fill (replace fill_diagnostics):
303       look through the short list of active diag. (instead of the long list)
304       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
305    
306    checkpoint57a_post
307    o this set of changes restores TAMC compatibility
308      tested for global_ocean.90x40x15 adjoint on trough
309      (what a pain)
310    
311    checkpoint57a_pre
312    o some modifs in tools/build_options for sunos
313    o call ctrl_pack for ctrl at end for optimcycle=0
314    
315    checkpoint57
316    o add horizontal bi-harmonic viscosity for vertical velocity
317      - new parameter viscA4W (defaults to viscA4)
318      - affects only non-hydrostatic code
319      - to be done: no-slip lateral boundary conditions
320    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
321    o implement Implicit Vertical advection for pTracers
322    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
323      (implemented also for implicit vertical diffusion & advection)
324    o OBCS: extend application of tracer open boundary conditions
325      to a strip beyond the boundary of width Olx/Oly
326    o add call monitor to TAF set of required calls (flow directives)
327      and include in natl_box_adjoint
328    o untangle a few ifdefs related to cost, ctrl, autodiff
329      untangel a few ALLOW_ECCO_OPTIMIZATION
330    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
331      (theta2, salt2 in ecco_cost_weights)
332    
333    checkpoint56c_post
334    o OBCS as control variables
335      - update ctrl_ad_diff.list, obcs_ad_diff.list
336      - remove balance of obcs controls from default
337      - fix index bug nobcs in ctrl_init
338      - fix dummy fields filen in ctrl_pack
339      - add dummy weights for obcs
340    o lsopt: comment out fort.94 output
341    o optim:
342      - remove unnecessary header files
343      - adjusted namelists
344      - add xerbla.F to Makefile
345    o exf:
346      - multiple modifications of exf_check_range
347      - unit change in exf_init_runoff from [m/year] to [m/s]
348    o mdsio:
349      - i/o-vector change debugLevel from debLevA to debLevB
350    
351    checkpoint56b_post
352    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
353      is called from DO_THE_MODEL_IO
354      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
355      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
356      - clean up PTRACERS_WRITE_TIMEAVE a little
357    o add another verification experiment that tests both the cfc-pkg and
358      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
359      reactive tendencies treated inline with regular timestepping
360    o testreport previously did a lousy job of comparing small numbers, so
361      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
362      implemented in the little c-progam tmp_cmpnum.c which is embedded in
363      testreport.
364    o ptracers_monitor: bug fix for MPI
365    
366    checkpoint56a_post
367    o GCHEM: finish reorganizating the package
368      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
369        (introduces another 3D-array for each passive tracer, but only if
370        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
371        gchemTendency is not needed because the timestep is done separately)
372      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
373      - GCHEM is now---more or less cleanly---separate from PTRACERS
374      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
375        so clear to me how that should be done in a general way.
376    o CFC: improve formatting of output in CFC_ATMOS
377    o PTRACERS:
378      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
379        that ALL experiments with ptracers enable can be checked. This makes
380        GCHEM_MONITOR obsolete.
381      - include a runtime parameter PTRACERS_monitorFreq that defaults to
382        monitorFreq
383      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
384    o add PTRACERS (PTR0[1-5]) to testreport output
385    o exf_check_range:
386      * default changed to .TRUE.
387      * will check values for niter0 if debLevA, every timestep if debLevB
388      * STOP in exf_check_range if 'out of range'
389      * range chosen generous to allow for potential extema
390      TBD: a version with stricter range
391           permitted range would be runtime parameters
392    o GMredi:
393      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
394      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
395      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
396    o GCHEM:
397      - move call to GCHEM_FORCING_SEP, so that it is now called before
398        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
399      - introduced a useGCHEM runtime flag and applied it everywhere.
400      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
401        this flag is now only visible within GCHEM-pkg routines.
402      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
403        be replaced by a 3D array that is computed before thermodynamics; for
404        this, the tracer ID iTracer had to be included into the parameter list
405        of ptracers_forcing
406      - set up forward_step to call gchem_forcing, that will replace
407        gchem_forcing_int in ptracers_forcing
408      - cleaning up
409    o small cleaning of exch2: remove files that are also in eesupp/src
410    
411    checkpoint56
412    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
413    o mnc: cleanup "full" files--fixes out-of-memory problem
414    o ECCO-GODAE
415      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
416      * fully merged and updated from SIO code
417        windstress sign change affects
418        - exf_inscal_[u/v]stress
419        - sign of xx_tau[u/v] adjustments
420        - signs in cost_scat
421      * ctrl_get_gen: avoid update of tau[u/v] for first few days
422      * natl_box_adjoint updated and compressed
423      * 2-level checkpoint switch added
424        (tested in EXP. 1 of natl_box_adjoint)
425      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
426    o SVD
427      * first complete, non-hacked version for SVD calculations
428      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
429        performed via direct access files admtlm_vector.it????
430        (via ctrl_[un]pack)
431      * optimcycle is used for ARPACK iteration counter
432        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
433      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
434        and add linear transforms where necessary
435      * controls are initial/final SST, SSS (can be extended; need to check
436        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
437    o mdsio: filename info to both stderr, stdout
438    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
439      from sign change
440    
441    checkpoint55j_post
442    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
443      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
444    o add consistent build directories and .cvsignore files to verification
445    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
446    o make all subroutines 30 or less characters in length for certain older
447      compilers to work (a thorough search only turns up two routines in
448      pkg/ptracers)
449    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
450      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
451    
452    checkpoint55i_post
453    o change arrays for total vertical diffusivity (2.D if explicit,
454      3.D if implicit) ; each ptracer uses its own background value.
455    o added mnc/NetCDF output capability to ocn_compon_interf
456      - added bits to verification/cpl_aim+ocn so that it can run on
457        ITRDA and other clusters without the mpirun "-wd" option
458    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
459      configuration
460    o give MNC the ability to create additional files rather than
461      exceeding a specified file size limit "MNC_MAX_FILESIZE"
462      - the default is just less than 2GB which is a practical limit
463        on many systems
464    o Compute the non-local term using either KPP vertical diffusivity (=default)
465       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
466    
467    checkpoint55h_post
468    o add verification test "vermix"
469    o remove all the *_ioinc flags and replace with the single global
470      outputTypesInclusive flag
471    o allow to set a vertical profile of vertical diffusivity for T & S
472    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
473    o useMNC moved from data.mnc to data.pkg
474    
475    checkpoint55g_post
476    o Renaming carbon AD experiments to comply with testreport conventions
477    o Updating adjoint of Held-Suarez hs94.1x64x5
478    o Fixing directives for non-ECCO forward_step, after ECCO directives
479      have been fixed to avoid recomp. of do_oceanic_phys
480      Works well for global_ocean.90x40x15,
481      but recomp. issue remains for carbon
482    o Updating adjoint output for natl_box_adjoint after
483      pkg/ecco has been modified (see taga c55d_post)
484    
485    checkpoint55f_post
486    o rename to timeave_init_fixed
487    
488    checkpoint55e_post
489    o some delicate re-shuffle of store directives to avoid one
490      extra call of do_oceanic_physics
491      affects ecco_the_main_loop.F, do_oceanic_physics.F
492      checkpoint_lev1_directives.h
493    o NB: this may break global_ocean adjoint temporarily,
494      but it is clear how to fix it. Will do later, need this now.
495    
496    checkpoint55d_post
497    o ECCO specific cost function terms (up-to-date with 1x1 runs)
498    o ecco_cost_weights is modified to 1x1 runs
499    o modifs to allow observations to be read in as
500      single file or yearly files
501    o enable to read exf forcing fields as either
502      single file or yearly files (flag useExfYearlyFields)
503    checkpoint55d_pre
504    
505    o switch between 2-level and 3-level checkpointing
506    o add ability of MNC to write local and "partial" (eg. 2D slices where
507      the full 3D field is never actually stored) arrays to NetCDF files
508      with the correct (that is, the complete multi-dimensional) set of
509      array indicies
510      - used in mom_vecinv() to write the diagFreq output
511      - tested (demonstrated) in verification/aim.5l_cs
512    o further mnc-ification
513      - add verification/lab_sea to the list with mnc setups
514      - fix undefined mnc v-names in cd_code
515      - add kpp to mnc output (both snapshot and timeave)
516    o non-hydrostatic code
517      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
518        in calc_gw.F
519      - defaults to viscAh
520      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
521        friction or Leith) in non-hydrostatic mode, as long as there is
522        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
523    o pkg/cost
524      extend simple cost functions to treat time mean quantities
525      (T,U,V) via cost_accumulate_state from cost_tile
526    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
527        be 2 times larger than the minimum size the advection scheme requires.
528        now get a perfect conservation of salt in advect_cs test-exp (updated)
529    o GGL90 (Gaspar's TKE mixed layer)
530      - add horizontal diffusion of TKE, requires exchanges in
531        do_fields_blocking_exchanges, horizontal diffusivity is zero by
532        default. In OPA there is no horizontal diffusion of TKE but the
533        mixing coefficients are computed from a horizontal average of TKE of
534        6 points or so. I think that diffusion has a little more physical
535        justification.
536      - clean up ggl90_calc in the hope of reducing memory usage (this hope
537        was in vain)
538      - mask tke-variable in ggl90_init
539    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
540    o fix biharmonic diffusion on CS-grid.
541    o more obcs stuff
542      - added obcs_external_fields_load as an alternative to the EXF-pkg option
543        for reading boundary values. This routine is called from
544        obcs_prescribe_read
545      - updated obcs_check
546      - changed sponge layer relaxation parameter units for days to seconds
547      - turned off sponge layer by default
548      - changed argument list of OBCS_CALC to myTime+deltaTclock
549      - fixed about 35 bugs in obcs_external_fields_load
550    
551    checkpoint55c_post
552    o obcs stuff
553      - new runtime flags useOBCSprescribe, useOBCSbalance
554      - re-arranged obcs_calc
555      - moved exf_getobcs to obcs_prescibe_read
556        obcs_prescibe_read is called after ORLANSKI stuff
557        and independent of it (executable can contain all).
558      - updated obcs_check
559      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
560        These may be necessary only if tangential velocities are
561        prescribed at OB, not sure, needs testing.
562    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
563      which simplifies the calls and passes the ifc check-bounds test
564    
565    checkpoint55b_post
566    o add a 2D scalar, Z location, exchange_2 routine.
567    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
568      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
569      affects advect_cs results (for the wrong reason): update output.txt
570    o use a more standard discretization for biharmonic viscosity ;
571     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
572      affects results of dome set-up: update output.txt
573    o fix gad_advection.F (CubedSphere part), back to version 1.23
574    o fix bug in mom_vi_del2uv.F (CubedSphere part).
575    
576    checkpoint55a_post
577    o merged code to
578      * prescribe/read time-dependent open boundaries
579        (works in conjunction with exf, cal)
580      * sponge layer code for open boundaries
581      * each boundary N/S/E/W now has its own CPP option
582        (healthy for the adjoint)
583    
584    checkpoint55
585    o up-to-date adjoint of previous breaks
586      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
587      - global_ocean_ebm: adjoint still needs fix (TLM ok)
588      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
589      - carbon: * remove tr1-related adjoint verification
590                * add ptracer as control variable
591    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
592      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
593    
594    checkpoint54f_post
595    o in verification/carbin/ remove experiment related to
596      ALLOW_PASSIVE_TRACER (array tr1 etc)
597      code_ad/ input_ad/ results_ad
598    
599    o add two new packages
600      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
601        + subject to optimization (memory)
602      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
603        + subject to reordering (many GOTOs in the original code)
604        + so far opps is called for every (i,j) point, and then operates in
605          the vertical; one may want to reorder the scheme in order operate in
606          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
607          fields)
608    o overhaul of IO so that we now have flags for MDSIO and/or MNC
609      - all verification tests compile and run with linux_ia32_g77
610      - defaults are compatible with current input files--nothing
611        should change if you were not previously using MNC
612      - MNC output has been added in numerous places (eg. timeave)
613        but there are still a few writes not yet do-able with MNC
614        (this is in progress)
615      - flags now allow for either/or/both use of MDSIO and MNC and
616        documentation will soon follow
617      - numerous small formatting cleanups for ProTeX
618    o add version info (via BUILD_INFO.h) to MNC and stdout
619    
620    checkpoint54e_post
621    o add two new packages
622      - pp81 (Packanowski and Philander, 1981), Richardson number and
623        stratification dependent mixing
624      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
625      - these scheme operate in a similar manner as KPP (without ghat, of
626        course), however there is only one diffusivity that is used for both
627        temperature and salinity (and passive tracers)ç
628    o add offline package
629    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
630      provided by Stephanie Dutkiewicz
631    o genmake2: add ability to search for C compilers and cleanup test output
632      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
633    
634    checkpoint54d_post
635    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
636    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
637      leading to additional shift by 5 days each year of integration
638       (i.e. leading to considerable offset over the years)
639    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
640    o start with no AB and no initial filtering (staggerTimeStep):
641      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
642    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
643      (external loading & cpl import/export stay in forward_step.F)
644    o update coupling interface to work with new staggerTimeStep
645    o change MDSIO ptracers_pickup.
646    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
647    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
648    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
649    
650    checkpoint54c_post
651    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
652      this affects (truncation error) output.txt of test-exp:
653       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
654    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
655    o change Qnet to always be the net heat flux, (+upward).
656      affects (truncation error) output of natl_box exp.: updated
657    o define the max number of passive tracers in PTRACERS_SIZE.h
658    o start to test mnc routinely in exp0
659    o add sea-ice loading (sIceLoad) as a new forcing field.
660    
661    checkpoint54b_post
662    o add testreport "-j JOBS" option for parallel builds (tested and pretty
663       impressive on Altix and Opteron systems)
664    o diagnostics can now write NetCDF files through the mnc package
665    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
666    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
667    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
668      affects (truncation error) output of lab_sea & natl_box exp.: updated
669    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
670    
671    checkpoint54a_post
672    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
673    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
674    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
675    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
676      + internal_wave (shift in writing cg2d_ini_res)
677    checkpoint54a_pre
678    
679    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
680      - modified verification/lab_sea and natl_box_adjoint accordingly
681    
682    checkpoint54
683    checkpoint53g_post
684    o prepare splitting of thermodynamics: store convect.counter in common block
685    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
686      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
687    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
688    o new parameter "nShapS": allow to treat differently S from T (nShapT)
689    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
690    o restore adjointability
691    
692    checkpoint53f_post
693    o modifications that affect AIM experiment results (update output.txt):
694      - no advection of S at top interface Nr (pkg/generic_advdiff)
695      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
696    o AIM pkg:
697      - include stability function into surf.Flux derivative relative to Tsurf
698      - calculate clear-sky radiation & surface temp. change (for diagnostics)
699    
700    checkpoint53e_post
701    o merged cylindrical coord configuration
702    o added rotating_tank experiment
703    checkpoint53e_pre
704    
705    checkpoint53d_post
706    o faulks upgraded: re-generate output.txt that have changed:
707       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
708    o Added Bryan and Lewis, 1979, vertical diffusivity profile
709    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
710    o added Sadourny discretization of Coriolis
711      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
712      - re-enabled use of omega3 (useAbsVorticity)
713    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
714      vector-invariant equations
715      - note: does *NOT* yet use same variable visc. for no-slip BC's.
716    o recoded the lateral boundary conditions for non-hydrostatic w, this time
717      hopefully without new bugs
718      - still to do: biharmonic friction for non-hydrostatic w
719    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
720    o regenerated output for global_ocean_ebm (using -ieee)
721    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
722      of mom_common/
723      - simple re-arrangement of instructions within computing loop
724    checkpoint53d_pre
725    
726    checkpoint53c_post
727    o new version of coupler for AIM+thSIce and Ocean models
728     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
729     - land: change Evaporation of snow
730     - aim with thSIce: fix bug in snow-precip.
731    o changes to calc_gw.F
732     - bug fix for w^2 term near the bottom boundary
733     - (hopefully) improve the lateral slip boundary condtions for use with
734        partial/looped cells
735      - because the bug fix changes two verification experiments anyway (exp5
736        and plume on slope), change the lateral boundary condition from half slip
737        to the value of no_slip_sides
738    o ebm package wasnt quite up to the parallel task. Fixed that.
739    o Adjoint of EBM package + verification
740      * TLM OK
741      * ADM not sufficient accuracy yet (needs further testing)
742    
743    checkpoint53b_post
744    o Commiting new energy balance model to repository
745      * package is pkg/ebm
746      * verif. is verification/global_ocean_ebm
747      * references are in ebm_driver.F
748    C      * X. Wang, P. Stone and J. Marotzke, 1999:
749    C        Global thermohaline circulation. Part I:
750    C        Sensitivity to atmospheric moisture transport.
751    C        J. Climate 12(1), 71-82
752    C      * X. Wang, P. Stone and J. Marotzke, 1999:
753    C        Global thermohaline circulation. Part II:
754    C        Sensitivity with interactive transport.
755    C        J. Climate 12(1), 83-91
756    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
757    C        Destabilization of the thermohaline circulation
758    C        by atmospheric eddy transports.
759    C        J. Climate 7(12), 1870-1882
760    o Will need long integration testing.
761    checkpoint53b_pre
762    
763    o created pkg/mom_common in preparation for variable viscosity code
764    o renamed and split ini_mnc_io
765    o pkg/land: only liquid water can diffuse or run-off
766    o AIM using land: soil wetness availability account for snow
767    o added printMapIncludesZeros to EEPARMS namelist
768    
769    checkpoint53a_post
770    o restore TAMC compatiility for exf_constants.h
771      (no usage of _d in .h)
772    o Additional storing in KPP in an attempt to fix
773      TAMC problem with adjoint of KPP code.
774      (no success...)
775      Identical code works fine with TAF.
776    o Fixed verification/natl_box_adjoint experiments.
777      Initial conditions for Experiments 4 and 5 are now
778      set to "SEAICE_initialHEFF=0", which is more reasonable,
779      and hence gives results closer to that of Experiment 2.
780      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
781    
782    checkpoint53
783    o stable checkpoint with up to date adjoint
784      TLM tests only run for 1st grdchk at the moment. Its unclear if
785      this is a code problem or a problem with resetting code for g_
786      variables that is being autogenerated wrong.
787      Otherwise:
788       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
789       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
790         are both still in chaos following their security messes.
791    
792    checkpoint52n_post
793    o various build (mostly genmake2) changes including:
794      - ability to build/run more easily within Cygwin and MacOS X
795      - more complicated Makefiles with a stronger dependence on Gnu Make
796    o pkg/seaice modifications
797      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
798        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
799        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
800      - changed proxy for geostrophic velocity and updated
801        verification/lab_sea/results/* accordingly
802      - removed ADI dynamic solver from pkg/seaice
803      - replaced all occurrences of 1/CSTICE or 1/CSUICE
804        they caused a segmentation fault under certain circumstances
805      - removed unused field WATR
806    o bug fix in exf-package:
807      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
808         now reflect that.
809    o small fixes in the cal-package:
810      - set reference date to first of January for the 'model'-calendar
811      - failing of cal_CheckDate in cal_FullDate now actually results in a
812        warning
813    o small modifications in exf-package to increase flexibility:
814      - change climtempfreeze from a constant to a runtime parameter that
815        is specified in data.exf_clim (default = -1.9)
816      - introduce runtime parameter windstressmax (default = 2.0) that is
817        specified in data.exf
818    o fix in pkg/thsice:
819      - update Evap (Tsf changes) to be consistent with Latent heat flux
820      - maintain snow precipitation unchanged (even if Tsf >=0).
821     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
822    
823    checkpoint52m_post
824    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
825      this does not change any of the results, because myIter=0 in swfrac always
826      lead to jwtype=2 (the default anyway), but the call makes little sense
827      as a default
828    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
829    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
830      atmospheric model (AIM) to use it ; add a "slab ocean" component.
831    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
832    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
833    o extending useSingleCpuIO option to work with new exch2 I/O format
834      - old-style, missing-tile I/O is still accessible by defining CPP
835        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
836    o monitor package can write to NetCDF files and/or STDOUT
837    o fix re-definition bug in MNC_GRID_INIT_ALL()
838    o doc/api_reference added
839      - a framework for building an API Reference Manual using all
840        the "protex" comments embedded in the code
841      - see pkg/generic_advdiff, pkg/mnc for examples
842    o MNC:
843      - make myThid the last argument for all subroutines
844      - new default for the grid files: NO halos
845      - add useMNC and other run-time flags
846      - separate per-file-group handling of the unlimited dimension
847      - early initialization of MNC w/ flags read at the eeboot stage
848        and lookup tables set in initialize_fixed
849      - write all MNC output to a freshly-created directory
850    o thermodynamics sea-ice (thsice) is now tested with testreport.
851    o test exp. advect_cs: use the standard cs32 grid ; update output.
852    o Added functionality to grdchk:
853      pick global i,j,k position (or nearest wet) where to perform check.
854    
855    checkpoint52l_post
856    o new land formulation:
857      a) use ground enthalpy as prognostic variable to ensure exact
858         energy conservation.
859      b) account for water temperature and for latent heat of freezing
860         in all processes (rain, run-off, ground storage)
861      c) compute surface and ground temperature implicitly.
862    o aim_v23 modification for new land model:
863      a) Treat separately land / ocean / sea-ice surface fluxes
864         to allow implicit computation of land & sea-ice surface temp.
865      b) add snow precipitation.
866    checkpoint52l_pre
867    
868    o fix problem (when 1 tile is empty) in min/max monitor.
869    o fix bug in timeAve (u,vZetatave in common block)
870    o no restoring terms under ice for pkg/seaice
871    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
872    o bug fix for pkg/seaice pickups
873    o change MNC call locations and add coordinate attributes
874    o mask vorticity at the corner ; affects global_ocean.cs output
875    o fix ini_curvilinear_grid ; test CS experiments with mpi
876    o aim.5l_cs: modify sea-ice fraction input file ; update output
877    o exf: Adding simple range check routine for exf fields after read
878    
879    checkpoint52k_post
880    o removed top-level directory "diags"
881      - we migrated these functions to pkg/timeave a long time ago
882    o fixed bug introduced in pkg/monitor
883    o accuracy ctrlprec = 32 insuffient for gradient checks using
884      averaged fields (I/O via cost_averages)
885      -> use ctrl.h in active_file*.F to control I/O precision.
886    o paramter list of CALL ADTHE_MAIN_LOOP
887    o added initial do_the_model_io to ecco
888    o set all ...Freq to zero after cost_final
889      taveFreq, dumpFreq, pChkptFreq
890    o MAIN and ECCO differentiability restored
891    
892    checkpoint52j_post
893    o fix nchklev in tamc.h for global_ocean...
894    o Bringing flow and store directives up-to-date
895    o Really weird thing!
896      call do_the_model_io from the_main_loop with parameters
897      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
898      TAF places a faulty re-call of initialise_varia
899      after cost_final call which should not be there!
900    checkpoint52j_pre
901    
902    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
903      error messages
904    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
905    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
906      debug output
907    o modfied mdsio_writefield.F to handle non-global files under exch2
908    o update AIM Cubed-Sphere exp (aim.5l_cs):
909      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
910    o update AIM Equatorial Channel exp:
911      use standard aim_v23 pkg and change the SST fields to be more realistic.
912    o globalFile now works with exch2
913    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
914      mon_vort3.F to make exch2 friendly with >1 tile per cube face
915    o limit timeave output for hi-res integrations
916    
917    checkpoint52i_post
918    o removed CPP_EEOPTIONS.h from verification/*/code
919    o updated the tiling for global_ocean_pressure
920    checkpoint52i_pre
921    
922    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
923      the old pkg/aim).
924    
925    checkpoint52h_pre
926    o shortened offending lines in exch2_send_rx?.template
927    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
928    o genmake2: add build & execute test for NetCDF code
929    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
930      old grid files, moved CPP_EEMACROS.h to pkg/exch2
931    o added useSingleCPUIO flag to monitor.F and mon_out.F
932    o added temporary hack for sea-ice dynamics on the cube:
933      metric terms are ignored and it is assumed that
934      there is no sea-ice on cube faces 1, 2, 4, and 5.
935    
936    checkpoint52f_post
937    o added exch2 cube routines to pkg/exch2
938    o modified hs94.cs-32x32x5 to use it
939    o added new grid files to hs94.cs-32x32x5
940    checkpoint52f_pre
941    
942    checkpoint52e_post
943    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
944      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
945    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
946      to work with implicit vertical advection and AB ;
947    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
948    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
949     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
950    checkpoint52e_pre
951    
952    o fix bug in impldiff when Nr=1 or Nr=2.
953    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
954    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
955    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
956      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
957    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
958    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
959    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
960    
961    checkpoint52d_post
962    o re-tiled many expts to allow comparison in multi-processor mode
963      - updated output accordingly
964      - changed hs94.128x64x5 to use intial T from file rather than use the
965        random number generator
966    o add infrastructure in model routines for fizhi and gridalt packages
967    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
968    o changes to permit hi-res, cubed-sphere, configuration
969      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
970      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
971      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
972        of surface winds for the cube
973      (A verification experiment, based on global_ocean.cs32x15, but with
974       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
975       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
976       complete with example surface forcing files and matlab scripts to look
977       at the output and compare it with that of global_ocean.cs32x15.)
978    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
979       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
980       to conform to the common rule.
981    o check-in the first version of the coupler + interfaces for multi-components
982       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
983       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
984       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
985       - ocean and atmos. share the same horizontal grid (no interpolation).
986       - exchanges between component and coupler is done in forward_step
987    o new verification experiment, cpl_aim+ocn:
988       coupled ocean - AIM atmosphere on cs32 grid.
989    
990    checkpoint52d_pre
991    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
992    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
993    
994    checkpoint52c_post
995    o Fixing OPTIONS files for use of exf:
996      - ALLOW_ECCO not needed
997      - ECCO_CPPOPTIONS.h should not be included from
998        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
999        as has been the case in the past
1000      - All cal/exf related options are currently set in
1001        single header file. Should remain so until we
1002        agree on a consistent new policy.
1003    o Removed all CPP options for cal package.
1004      cal has no more CPP options.
1005    o modified STOREs in GAD_ADVECTION
1006    o corrected key comp. for passkey
1007    
1008    checkpoint52b_post
1009    o new version: "thsice" of thermodynamic sea-ice pkg:
1010     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1011     - modify fluxes but do not change theta directly;
1012     - light cleaning of bulk_force pkg (still needed with thsice).
1013     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1014       + output_thsice.txt to test thsice & bulk_force pkgs.
1015    o put back grid & coriolis monitor output.
1016    checkpoint52b_pre
1017    
1018    o call "do_the_model_io" at the beginning (=> dump initial state)
1019    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1020    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1021      (need info on NUMBER_OF_PTRACERS)
1022    o missing PTRACERS headers in some routines
1023    o default tamc.h in pkg/autodiff supposed to crash
1024      to ensure proper customization
1025    
1026    checkpoint52a_post
1027    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1028      - moved surfaceTendencyTice from pkg/seaice to main code
1029      - subroutine FREEZE_SURFACE now limits only surface temperature
1030        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1031        => new output.txt for global_ocean.cs32x15 & global_with_exf
1032      - keep the old version of FREEZE for backward compatibility;
1033        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1034      - corresponding modifs for TAF directives
1035    o added surface flux output variables to TIMEAVE_STATVARS
1036    o time-averaged output for pkg/ptracers
1037    o fix problem with ECCO-related divided adjoint
1038      snapshot file was missing some ad-variables,
1039      but no warning issued by TAF
1040    
1041    checkpoint52a_pre
1042    o some bug fixes for #undef REAL4_IS_SLOW
1043    
1044    checkpoint52 = ecco_c52_e35
1045    o after testing adjoints of checkpoint51u_post
1046    
1047    checkpoint51u_post
1048    o this is the post-merge tag of the ecco-branch
1049      (needs another clean checkout and re-testing)
1050    o various natl_box_adjoint configs and results
1051      but no input fields
1052    o obcs adjoint not yet merged!
1053    o adding ECCO global 1x1 and 2x2 degree configs
1054    o updated/extended some store directives for seaice
1055    o pkg/ecco now containes ecco-specific part of cost function
1056    o top level routines the_main_loop, forward_step
1057      supersede those in model/src/
1058      previous input data.cost now in data.ecco
1059      (new namelist ecco_cost_nml)
1060    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1061    
1062    checkpoint51t_post
1063    o this is the pre-merge tag of the ecco-branch
1064    
1065    checkpoint51s_post
1066    o cleanup: removed various obsolete #define-s
1067    o pkg/grdchk
1068      - renamed 'ph-grd 3' to 'grad-res'
1069      - merged from ecco-branch
1070        (remaining bug fixes for obcs gradient checks)
1071      - additional high-precision output for testreport
1072        (grep for 'precision_grdchk_result')
1073    
1074    checkpoint51r_post
1075    o cleaned up or removed CPP_OPTIONS.h files
1076    o updated results for some of the tests to reflect the new
1077      optfiles (-ieee: -O0 instead of -O3)
1078    
1079    checkpoint51q_post
1080    o cd_code:
1081      - moved cd_scheme.F -> cd_code_scheme.F
1082      - separate read_checkpoint from cd_code_ini_vars.F
1083      - separated cd_code part from write_checkpoint
1084      - updated AD_SOURCE, generated .flow
1085      - added CD_CODE_VARS.h to the_main_loop
1086      - Moving cd_code specific store dir.s to pkg/cd_code
1087    o ctrl package totally restructured
1088      - pack/unpack now optional and decoupled from
1089        xx_/adxx_ I/O
1090      - ctrl_pack/unpack cleaned
1091        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1092      - confined inclusion of AD_CONFIG.h to where necessary.
1093    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1094    
1095    checkpoint51p_post
1096    o create initial cd_code package
1097      - WARNING: the initialization of fields within packages
1098        is broken because INI_FIELDS (where READ_CHECKPOINT is
1099        called) is called *before* PACKAGES_INIT_VARIABLES.
1100        This seems to be backwards since
1101        1) its important to initially zero the entire field including
1102           the "halo" region
1103        2) zeroing needs to be done *before* reading pickup info
1104           and the pickup call might or might not happen in any
1105           particular run
1106      - this needs an overhaul for R2
1107    o cleanup verification/*/code/GMREDI_OPTIONS.h
1108    o cleanup testreport
1109    
1110    checkpoint51o_post
1111    o bringing AD-related verif's up to date with genmake2
1112      - carbon/
1113      - global_ocean.90x40x15/
1114      - hs.94.1x64x5/
1115      - (front_relax/ )
1116    o (more) consistent directory structure for AD-related verif.'s
1117    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1118    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1119    o bug fix in find_alpha.F for MDJWF:
1120      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1121        change rho -> rho-rhoConst
1122      - replace call find_rho to find_rhonum
1123    o initialisation of rFlx extended to full array (required by TAF)
1124      and shifted to thermodynamics
1125    o removed PTRACERS.h in ptracers routine
1126    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1127    o Correcting initialisations for fVerU, fVerV.
1128    o helping TAF to recognize dependency on kUp for
1129      fVerU, fVerV
1130    o Replacing delZ by delR in pkg/ctrl/
1131    checkpoint51o_pre
1132    
1133    o undid all of cp51 pending some cleanups and discussion
1134    o added the [#include "AD_CONFIG.h"] statement to all files that need
1135       it for adjoint/tl #defines
1136     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1137     o removed tools/genmake since it no longer works
1138    
1139    checkpoint51n_post
1140    o modifications to make FREEZE flux visible to pkg/kpp
1141      - moved surfaceTendencyTice from pkg/seaice to main code
1142      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1143      - subroutine FREEZE now limits only surface temperature
1144        (this means new output.txt for global_ocean.90x40x15,
1145         global_ocean.cs32x15, and global_with_exf)
1146    o added surface flux output variables to TIMEAVE_STATVARS
1147    
1148    checkpoint51n_pre
1149    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1150    o added [#include "AD_CONFIG.h"] to all files that use the following
1151      defines:
1152      - ALLOW_ADJOINT_RUN
1153      - ALLOW_TANGENTLINEAR_RUN
1154      - ALLOW_ECCO_OPTIMIZATION
1155    
1156    checkpoint51m_post
1157    o incorporating changes to get TAMC/TAF working in genmake2
1158      - added new TAMC/TAF targets to the Makefile
1159      - various cleanups related to package handling
1160      - these changes should have no impact on the forward model
1161    
1162    checkpoint51l_post
1163    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1164     - faster algorithm for cal_addtime.F
1165     - higher precision arithmetic, where needed
1166     - pkg/exf *startdate variables changed from calendar date to
1167       model integration time
1168    
1169    checkpoint51l_pre
1170    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1171    o enable to apply restoring on S & T only in a latitude band.
1172    o update output (external_forcing_surf modif. change truncation errors)
1173       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1174    
1175    checkpoint51k_post
1176    o change default to: useNHMTerms=.FALSE.
1177     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1178       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1179     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1180        exp1, ideal_2D_oce
1181     - change data file of oceanic exp (leave the results unchanged for now)
1182       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1183    o set gravitySign automatically according to the vertical coordinate used
1184      (and change sign: back to "logical" value: +1 when R increases downward)
1185    o added an include barrier to the default CPP_OPTIONS.h and
1186      removed the #include "PACKAGES_CONFIG.h" from it
1187    o fix a bug in mom_fluxform (from chk51j_post)
1188    
1189    checkpoint51j_post
1190    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1191    o adjusted some flow directives (dynamics, thermodynamics)
1192    o added cubed-sphere case to test cost function
1193    o heckpoint_lev?_directives.h now include
1194      pkg-specific directives, whenever those are enabled.
1195    o Moving pkg-specific flow directives to corresponding pkg
1196      Moving pkg-specific differentiation list to corresponding pkg
1197      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1198      ---> conventions are
1199           - pkg_ad.flow
1200           - pkg_ad_diff.list
1201           - pkg_ad_check_lev?_dir.h
1202    
1203    checkpoint51i_post
1204    o merge of the branch-genmake2
1205      - knowingly breaks the older genmake
1206      - automatic generation of all ALLOW_${PKG_NAME} defines
1207      - new testreport supersedes older testscript
1208    o large number of package inclusion and header cleanups
1209    checkpoint51i_pre
1210    
1211    o new output for adjoin of global ocean vector invariant
1212    o fix for checkpoint of thermodynamic seaice and bulk_force
1213    o Steph gchem various cleanups
1214    
1215    checkpoint 51h_pre
1216    o fixed some single quotes
1217    o modify gchem pkg to be more versatile
1218    o modifications to clean up dic pkg
1219    o add pkg/cfc
1220    
1221    checkpoint51g_post
1222    o provide links for ARPACK and ADM*TLM
1223    o start removing verification/vero/
1224    o update AD-related stuff
1225      (in particular some IF-statements in model/src/ routines)
1226    o adding to verification/global_ocean.90x40x15/ adjoint of
1227      vector invariant setup
1228    
1229    checkpoint51f_post
1230    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1231    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1232      of tracer Green's fucntions for ocean inversion project.
1233    
1234    checkpoint51f_pre
1235    o Added on-the-fly spatial interpolation capability
1236        "USE_EXF_INTERPOLATION" to pkg/exf.
1237      - This is a temporary Cartesian-grid hack until
1238        the super-duper ESMF coupler becomes available.
1239      - See verification/global_with_exf/README for usage example.
1240      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1241        flags and modified pkg/seaice accordingly.
1242    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1243        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1244        non-local transport term.
1245    
1246    checkpoint51e_post
1247    o pkg/mom_vecinv:
1248      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1249      - add time-ave diagnostic of vorticity advection.
1250    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1251    o atmospheric geopotential: - include water vapor effect;
1252                                - use p^kappa in p* scaling.
1253    o land pkg: read initial state from files.
1254    o AIM : add stratospheric drag in the upper level
1255    
1256    checkpoint51d_post
1257    o change function ILNBLNK (=> last non-blank char.) to return zero
1258      (instead of the string length) when the string. char is empty
1259    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1260    o modif's to restore TAMC compatibility
1261      - avoid "_d" constructs in PARAMETER declarations
1262      - avoid interrupting lines by comment lines
1263    o Use cluster local disks for purely local I/O
1264      vs. globally visible disks needed for ctrl stuff
1265      (merged from ecco-branch)
1266      - new active_file_loc... and mdsio_..._loc routines
1267      - affected packages: autodiff, ctrl, grdchk, mdsio
1268    
1269    checkpoint51c_post
1270    o introducing integer flag debugLevel
1271      - debLevZero: suppress all output
1272      - debLevA: standard
1273      - debLevB: equivalent to current debugMode=.TRUE.
1274    o introducing pathname variable mdsioLocalDir for mdsio
1275      that can be specified at runtime
1276      (relevant for cluster I/O to local disk)
1277    `
1278    >>>checkpoint51b_post
1279    adjoint of ptracers
1280    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1281    o extended state in checkpoint_lev?, etc.
1282    o alternative ctrl/cost with tr1 or ptracer
1283    o new comlev1_bibj_ptracers
1284    o new ptracers.flow
1285    o made ptracers_forcing same as external_forcing_s
1286    o added verification for adjoint with ptracers
1287      - adm. grdchk fail so far
1288      - tlm. grdchk OK
1289      - checked tapelev/comlev recomputations: OK
1290    <<<checkpoint51b_pre
1291    
1292    checkpoint51a_post
1293    o added code for biogeochemistry package
1294      - new pkgs: dic, gchem
1295      - new subroutine in ptracers
1296    o modify code for biogeo packages
1297      - in model/src and pkg/ptracers
1298    
1299    checkpoint51
1300    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1301      - autodiff, ctrl, exf, grdchk, seaice
1302      kept separate packages
1303      - cost, ecco, obcs
1304    o updating verification/internal_wave, verification/lab_sea
1305      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1306    
1307    checkpoint50i_post
1308    o Preparing next differentiable checkpoint and sync
1309      of MAIN vs. ecco-branch
1310      - 1st step: this one is differentiable
1311      - 2nd step: next(! not this) checkpoint will have updated packages
1312                  from ecco-branch)
1313    
1314    checkpoint50h_post
1315    o new package "land": provide surface BC for AIM.
1316    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1317    o AIM: use true log-P extrapolation for near surface temp (= as in
1318        F.Molteni paper) ; update aim.5l_cs output.
1319    o New variable in PARM03 for more flexible pickups
1320    o somewhat cleaned package initialisation sequence for
1321      ctrl/ cost/ ecco/ in packages_... routines
1322    
1323    checkpoint50g_post
1324    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1325      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1326      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1327        made the default because of faster convergence than ADI
1328    
1329    checkpoint50f_post
1330    o exf totally restructured
1331      - replaced all exf_set_ routines by one generic exf_set_gen.F
1332        and made sure it's still differentiable
1333      - split exf_getffields.F into new exf_bulkformulae.F
1334      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1335      - updated adjoint/makefile and relevant verif. accordingly
1336    
1337    checkpoint50f_pre
1338     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1339          + change Evap over land. (update aim.5l_cs output)
1340     o added missing .cvsignores and made uniform across expts
1341     o changed configuration of tidal_basin_2d expt
1342     o added pkg/debug functions for tracing code in fatal crashes
1343     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1344     o new fn in pkg/monitor to stop model if solution grows too big
1345     o removed lots of single quotes from comments
1346    
1347    checkpoint50e_post
1348    o make KPP work with PTRACERS
1349     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1350       nearly a copy of kpp_transport_s
1351     - there is no analogue to SurfaceTendencyS, so I have to use
1352       gPtr(of the surface layer) instead
1353    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1354    checkpoint50e_pre
1355    
1356    checkpoint50d_post
1357    o change kpp output from multiple-record state files to single-record state
1358      files analogous to write_state.F
1359    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1360      analogous to the cg2d-related output.
1361    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1362      so that writing to internal file fn (with length 512) fails.
1363    checkpoint50d_pre
1364    
1365    checkpoint50c_post
1366    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1367    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1368    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1369    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1370    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1371    
1372    checkpoint50c_pre
1373    Merging from release1_p13:
1374    o bug fix for pkg/seaice dynamic solver
1375    o Added SEAICE_initialHEFF to pkg/seaice
1376    
1377    checkpoint50b_post
1378    o store u*,v* in gU,V instead of in guNm1,gvNm1
1379    o in order to put the momForcing out of the Adams-Bashforth:
1380      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1381      to timestep.F
1382    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1383    o re-generate output for highly sensitive test-exp:
1384       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1385    
1386    checkpoint50b_pre
1387    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1388    o corrected CPP option mismatch in exf_Bulk... functions for case
1389      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1390    
1391    checkpoint50a_post
1392    o Bug fix for merging between c50 and KPP.
1393      ikey was passed from thermodynamics to kpp_calc via
1394      common block rather than being recomputed in kpp_calc,
1395      in contradiction with new key itdkey.
1396      New key ikppkey created, and tamc.h headers updated.
1397    
1398    checkpoint50
1399    - 2nd step of merge with ecco-branch:
1400      merge changes in ecco-branch back into main trunk
1401    - bug fix in find_alpha
1402    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1403    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1404    - merged some sliced AD support routines
1405    
1406    checkpoint49
1407    merged from ecco-branch:
1408    o exf:
1409      - Enable initialisation of forcing fields to constant
1410        (runtime) values.
1411      - in exf_getffields.F
1412        Reduce i-/j-loop to interior domain, discarding overlaps.
1413        That also fixes wrong TAF-key computations for key_1, key_2
1414        with bulf formulae.
1415      - exf_init.F modify #ifdef for exf_init_evap
1416      - exf_getffieldrec.F, ctrl_getrec.F
1417        The following INT-usages are not safe:
1418          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1419          fldcount = int(fldsecs/fldperiod) + 1
1420        and were modified.
1421    o autodiff: checkpoint_lev...
1422      - updated storing for bulk formulae (some arrays were missing)
1423      - added state for seaice package
1424      - synchronized with main branch
1425    o DIVA:
1426      Modif.s in
1427      - the_main_loop.F
1428      - the_model_main.F
1429      and added cost_final_restore.F cost_final_store.F
1430      o With these changes, it is possible to fully separate
1431        the first forward run to compute the cost function (mdthe_main_loop)
1432        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1433        into separate model executions.
1434        This enables better tuning of DIVA to given queue sizes.
1435      o Loss of cost function value in consecutive DIVA runs is
1436        fixed by storing to 'costfinal' file.
1437      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1438        beginning/end of adjoint integration is accounted for.
1439      The current changes apply to TAF-1.4.26.
1440      TAF has one remaining bug, requiring one manual change
1441      (see MITgcm manual).
1442    o cal: synchronized between MAIN and ecco-branch
1443    
1444    checkpoint48i_post
1445    o Changes to restore differentiability of code w.r.t. previous tag
1446      (mostly adding new routines to make list and replacing
1447      pressure by totPhiHyd).
1448    o Updated and merged grdchk package
1449      - has both ADM and TLM checks
1450      - works for single- and multi-proc.
1451      - output cleaned
1452      - worked successfully for parallel DIVA
1453    o genmake:
1454      - Adding -platform=SP4
1455      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1456    o Modif. for DIVA:
1457      ctrl_unpack should not be called in intermediate DIVA interval.
1458      (similar thing would apply for active files such as
1459      tbar, sbar, psbar, which should not be reinitialised;
1460      only relevant for ecco-branch)
1461    
1462    checkpoint48h_post
1463    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1464    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1465    o Added SEAICE_initialHEFF to pkg/seaice
1466    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1467    
1468    checkpoint48g_post
1469    --- EOS:
1470    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1471      store total Potential in totPhyHyd for diagnostics & EOS.
1472    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1473    --- Pressure/geopotential gradient:
1474    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1475    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1476      ( changes results of global_ocean_pressure )
1477    o NLFS + z-coord.: add eta*Rho' contribution.
1478    o accurate phiHyd when using interface-W at the middle between 2 centers
1479     ( changes results of ideal_2D_oce )
1480    o includes r* 2nd term in potential gradient.
1481    
1482    checkpoint48f_post
1483    Merging from release1_p12:
1484    o Modifications for using pkg/exf with pkg/seaice
1485      - improved description of the various forcing configurations
1486      - added basic radiation bulk formulae to pkg/exf
1487      - units/sign fix for evap computation in exf_getffields.F
1488      - updated verification/global_with_exf/results/output.txt
1489    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1490      (SBO) core products, including oceanic mass, center-of-mass,
1491      angular, and bottom pressure (see pkg/sbo/README.sbo).
1492    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1493      to avoid negative values in shallow regions.
1494      - updated verification/natl_box/results/output.txt
1495      - updated verification/lab_sea/results/output.txt
1496    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1497    o Added useSingleCpuIO option (see PARAMS.h).
1498    o Updated useSingleCpuIO option in mdsio_writefield.F to
1499      work with multi-field files, e.g., for single-file pickup.
1500    o pkg/seaice:
1501      - bug fix in growth.F: QNET for no shortwave case
1502      - added HeffFile for specifying initial sea-ice thickness
1503      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1504    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1505      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1506    o pkg/seaice:
1507      - adjoint-friendly modifications
1508      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1509    
1510    checkpoint48e_post
1511    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1512    o dynamics: change definition of computational domain & adapt mom_fluxform
1513      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1514    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1515        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1516        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1517        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1518        inverted_barometer solid-body.cs-32x32x1
1519      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1520    
1521    checkpoint48d_post
1522    o in preparation for r*:
1523     a) use pre-computed gradient of hydrostatic potential:
1524        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1525     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1526        => affects results of glob_oce_pressure (different truncation error)  
1527      update output.txt of ideal_2D_oce & global_ocean_pressure
1528    
1529    checkpoint48d_pre
1530    o in preparation for r*:
1531      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1532      pass the 2 comp. of the grad. as arguments to momentum S/R.
1533      but for the moment, only used if it does not change the results.
1534    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1535    
1536    checkpoint48c_post
1537    Modifications in treatment of initial flux forcing controls
1538    to avoid extra storing of flux fields.
1539    
1540    checkpoint48c_pre
1541    o Added tidal_basin_2d experiment (currently 1D!)
1542    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1543    
1544    checkpoint48b_post
1545    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1546     (modification to pressure gradient not yet implemented)
1547    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1548      (for U & V) that are used for vertical advection of momentum.
1549    
1550    checkpoint48a_post
1551    o In preparation for r*, use temp. array to compute vertical transport
1552       in flux-form momentum pkg. => change results of few test-exp.
1553      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1554                        lab_sea, natl_box & plume_on_slope
1555    
1556    checkpoint48
1557    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1558    
1559  checkpoint47j_post  checkpoint47j_post
1560  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1561  o moved adexch from forward_step to addummy_in_stepping  o moved adexch from forward_step to addummy_in_stepping

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