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revision 1.66 by jmc, Tue Mar 5 15:36:06 2002 UTC revision 1.472 by heimbach, Wed Apr 6 20:19:34 2005 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o make lambda[Theta,Salt]ClimRelax spatially varying
7      (default remains spatially uniform constant based on tau)
8    
9    checkpoint57f_post
10    o add parameter "baseTime" = model base time = time at iteration zero
11      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
12      account for baseTime shift
13    o move Coriolis arrays from PARAMS.h to GRID.h
14    checkpoint57f_pre
15    
16    o mnc-ifying the seaice package
17    o introduced an alternative length scale calculation for use in the limiting
18      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
19    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
20    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
21      as well as grad(vort3).  Made it compatible with both approximate form
22      for the cubed sphere and full form of these gradients.  Added flag
23      useFullLeith to select between approximate and full form.  
24    o add "d0" in getcon.F to reduce differences between compilers/platforms
25      update output.txt of exp. fizhi-gridalt-hs
26    o change port_rand funtion to allow to set the seed.
27    o fix obscure MNC bug involving conversion between reals and integers
28      - it caused no problems with certain (eg. gcc, ifc) compilers but the
29        new version is now more standards-compliant
30    o adjoint-related modifications
31      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
32      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
33      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
34    
35    checkpoint57e_post
36    o Adding eddy stress controls a la Ferreira et al.
37    checkpoint57e_pre
38    
39    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
40      update output.txt of exp. fizhi-gridalt-hs
41    o add more "Z" dimensions and associated coordinate vars to MNC
42    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
43    o parameter calendarDumps: when set, approximate months (30-31 days) and years
44      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
45      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
46      months and years.  Requires pkg/cal.
47    o diagnostics: add pickup functionality
48      - off by default for backwards compatibility
49      - current version only uses MDSIO -- MNC will be added
50    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
51    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
52    
53    checkpoint57d_post
54    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
55    o modify verification/ideal_2D_oce so that it tests the creation of mnc
56      output from the diagnostics package
57    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
58    o make genmake2 more portable by using ".$FS" instead of ".f" for more
59      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
60    o add coordinate variables to the MNC output from the diagnostics package
61    o change MNC-flags default value: true when useMNC=TRUE
62    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
63      the ability (off by default) to read the grid information using MNC
64    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
65    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
66    o do snap-shot diagnostics at the middle of the time-interval (instead of
67      at the end).
68    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
69      new test for AIM with thSIce + slab-ocean
70    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
71    o move state variable diagnostics to the beginning of the time step ;
72      (note: still needs some work specially for snap-shot diagnostics)
73      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
74    
75    checkpoint57c_post
76    o Change testing option (-ieee) to get closer agreement between g77 & ifort
77    o generate new output.txt files on faulks with g77 & the new -ieee option
78    checkpoint57c_pre
79    
80    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
81      update output.txt of exp. global_ocean.90x40x15
82    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
83      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
84    o add saltFlux(+File) forcing capability with periodicExternalForcing
85    o allow to use pkg diagnostics for GM-Redi & ThSIce output
86    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
87    o improvements for the MNC output from DIAGNOSTICS:
88      - correct handling of the unlimitied dimension
89      - all dims now have associated coordinate variables
90      - variables located at U, V, and Corner ("Z") points are now written
91        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
92        *all* data points are output
93    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
94    o added pkg/seaice/seaice_monitor.F
95    o mdsio_readfield.F can now read files visible only to master MPI process.
96    o pkg/seaice: some test code for ice-modified ocean stress
97    o exf_getffields interpolation defaults to bilinear for all scalar forcing
98      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
99      spurious negative numbers for precipitation and humidity.  Will cause
100      some small numerical differences for integrations using pkg/exf/exf_interp.F.
101    o pkg/ctrl/
102      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
103        May be enabled via doPackDiag
104      *  introduce z-scaling of
105         + gradient (doZscalePack) and
106         + control (doZscaleUnpack)
107    o pkg/mdsio/
108      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
109      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
110    
111    checkpoint57b_post
112    o simplify options in diagnostics_fill arguments (remove weird combinations)
113    o fix MNC coordinate variables so that they now contain per-face index
114      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
115      general, EXCH2 grids are only aligned to a "local" coordinate system
116    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
117    o Implement instantaneous output within pkg diagnostics:
118      setting a negative frequency in data.diagnostics produces
119     "snap-shot" output (as opposed to time-average if freq > 0)
120    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
121      NOTE: change ptracer diagnostics name: use 2 characters to work with
122            more than 9 tracers. Add also diagnostics of advect & diffus flux.
123    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
124      becomes the coordinate variable for the 'T' dimension
125    o add CF-style coordinate variables to MNC
126      - just a first cut:  numbers are meaningless on the cubesphere and
127        missing along the T axis but otherwise it works!
128    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
129    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
130    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
131      this is based directly on what the model compute, so that the content of
132      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
133    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
134    o clean up build options files for SunOS, in particular
135      - remove -traditional from xmakedepend
136      - change -xarch=v9 to -xarch=native for f77
137      - restore use of make (not gmake)
138      - add CC=gcc if using g77
139    o changes per discussion of AM, JMC, & EH3 today:
140      - move redundant "grid" variables out of "state" -- in preparation of
141        creating proper CF-style coordinate variables and in recognition
142        that any/all grid variables can be easily copied (eg. w/NCO) from
143        the grid files into any of the other NetCDF files
144      - *always* output grid variables with MDSIO (this will eventually be
145        changed)
146      - output MNC grid file if useMNC is true
147    o every instance of _END_MASTER() has been found and replaced with
148      _END_MASTER( myThid ) in order to satisfy certain picky Sun
149      preprocessors
150    o re-arrange diagnostics pkg initialisation:
151     - allow each package to extend the available diagnostics list
152     - add some checking and fix small problems (multi-threaded, ...)
153     - new S/R diagnostics_fill (replace fill_diagnostics):
154       look through the short list of active diag. (instead of the long list)
155       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
156    
157    checkpoint57a_post
158    o this set of changes restores TAMC compatibility
159      tested for global_ocean.90x40x15 adjoint on trough
160      (what a pain)
161    
162    checkpoint57a_pre
163    o some modifs in tools/build_options for sunos
164    o call ctrl_pack for ctrl at end for optimcycle=0
165    
166    checkpoint57
167    o add horizontal bi-harmonic viscosity for vertical velocity
168      - new parameter viscA4W (defaults to viscA4)
169      - affects only non-hydrostatic code
170      - to be done: no-slip lateral boundary conditions
171    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
172    o implement Implicit Vertical advection for pTracers
173    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
174      (implemented also for implicit vertical diffusion & advection)
175    o OBCS: extend application of tracer open boundary conditions
176      to a strip beyond the boundary of width Olx/Oly
177    o add call monitor to TAF set of required calls (flow directives)
178      and include in natl_box_adjoint
179    o untangle a few ifdefs related to cost, ctrl, autodiff
180      untangel a few ALLOW_ECCO_OPTIMIZATION
181    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
182      (theta2, salt2 in ecco_cost_weights)
183    
184    checkpoint56c_post
185    o OBCS as control variables
186      - update ctrl_ad_diff.list, obcs_ad_diff.list
187      - remove balance of obcs controls from default
188      - fix index bug nobcs in ctrl_init
189      - fix dummy fields filen in ctrl_pack
190      - add dummy weights for obcs
191    o lsopt: comment out fort.94 output
192    o optim:
193      - remove unnecessary header files
194      - adjusted namelists
195      - add xerbla.F to Makefile
196    o exf:
197      - multiple modifications of exf_check_range
198      - unit change in exf_init_runoff from [m/year] to [m/s]
199    o mdsio:
200      - i/o-vector change debugLevel from debLevA to debLevB
201    
202    checkpoint56b_post
203    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
204      is called from DO_THE_MODEL_IO
205      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
206      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
207      - clean up PTRACERS_WRITE_TIMEAVE a little
208    o add another verification experiment that tests both the cfc-pkg and
209      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
210      reactive tendencies treated inline with regular timestepping
211    o testreport previously did a lousy job of comparing small numbers, so
212      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
213      implemented in the little c-progam tmp_cmpnum.c which is embedded in
214      testreport.
215    o ptracers_monitor: bug fix for MPI
216    
217    checkpoint56a_post
218    o GCHEM: finish reorganizating the package
219      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
220        (introduces another 3D-array for each passive tracer, but only if
221        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
222        gchemTendency is not needed because the timestep is done separately)
223      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
224      - GCHEM is now---more or less cleanly---separate from PTRACERS
225      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
226        so clear to me how that should be done in a general way.
227    o CFC: improve formatting of output in CFC_ATMOS
228    o PTRACERS:
229      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
230        that ALL experiments with ptracers enable can be checked. This makes
231        GCHEM_MONITOR obsolete.
232      - include a runtime parameter PTRACERS_monitorFreq that defaults to
233        monitorFreq
234      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
235    o add PTRACERS (PTR0[1-5]) to testreport output
236    o exf_check_range:
237      * default changed to .TRUE.
238      * will check values for niter0 if debLevA, every timestep if debLevB
239      * STOP in exf_check_range if 'out of range'
240      * range chosen generous to allow for potential extema
241      TBD: a version with stricter range
242           permitted range would be runtime parameters
243    o GMredi:
244      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
245      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
246      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
247    o GCHEM:
248      - move call to GCHEM_FORCING_SEP, so that it is now called before
249        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
250      - introduced a useGCHEM runtime flag and applied it everywhere.
251      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
252        this flag is now only visible within GCHEM-pkg routines.
253      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
254        be replaced by a 3D array that is computed before thermodynamics; for
255        this, the tracer ID iTracer had to be included into the parameter list
256        of ptracers_forcing
257      - set up forward_step to call gchem_forcing, that will replace
258        gchem_forcing_int in ptracers_forcing
259      - cleaning up
260    o small cleaning of exch2: remove files that are also in eesupp/src
261    
262    checkpoint56
263    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
264    o mnc: cleanup "full" files--fixes out-of-memory problem
265    o ECCO-GODAE
266      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
267      * fully merged and updated from SIO code
268        windstress sign change affects
269        - exf_inscal_[u/v]stress
270        - sign of xx_tau[u/v] adjustments
271        - signs in cost_scat
272      * ctrl_get_gen: avoid update of tau[u/v] for first few days
273      * natl_box_adjoint updated and compressed
274      * 2-level checkpoint switch added
275        (tested in EXP. 1 of natl_box_adjoint)
276      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
277    o SVD
278      * first complete, non-hacked version for SVD calculations
279      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
280        performed via direct access files admtlm_vector.it????
281        (via ctrl_[un]pack)
282      * optimcycle is used for ARPACK iteration counter
283        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
284      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
285        and add linear transforms where necessary
286      * controls are initial/final SST, SSS (can be extended; need to check
287        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
288    o mdsio: filename info to both stderr, stdout
289    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
290      from sign change
291    
292    checkpoint55j_post
293    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
294      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
295    o add consistent build directories and .cvsignore files to verification
296    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
297    o make all subroutines 30 or less characters in length for certain older
298      compilers to work (a thorough search only turns up two routines in
299      pkg/ptracers)
300    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
301      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
302    
303    checkpoint55i_post
304    o change arrays for total vertical diffusivity (2.D if explicit,
305      3.D if implicit) ; each ptracer uses its own background value.
306    o added mnc/NetCDF output capability to ocn_compon_interf
307      - added bits to verification/cpl_aim+ocn so that it can run on
308        ITRDA and other clusters without the mpirun "-wd" option
309    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
310      configuration
311    o give MNC the ability to create additional files rather than
312      exceeding a specified file size limit "MNC_MAX_FILESIZE"
313      - the default is just less than 2GB which is a practical limit
314        on many systems
315    o Compute the non-local term using either KPP vertical diffusivity (=default)
316       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
317    
318    checkpoint55h_post
319    o add verification test "vermix"
320    o remove all the *_ioinc flags and replace with the single global
321      outputTypesInclusive flag
322    o allow to set a vertical profile of vertical diffusivity for T & S
323    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
324    o useMNC moved from data.mnc to data.pkg
325    
326    checkpoint55g_post
327    o Renaming carbon AD experiments to comply with testreport conventions
328    o Updating adjoint of Held-Suarez hs94.1x64x5
329    o Fixing directives for non-ECCO forward_step, after ECCO directives
330      have been fixed to avoid recomp. of do_oceanic_phys
331      Works well for global_ocean.90x40x15,
332      but recomp. issue remains for carbon
333    o Updating adjoint output for natl_box_adjoint after
334      pkg/ecco has been modified (see taga c55d_post)
335    
336    checkpoint55f_post
337    o rename to timeave_init_fixed
338    
339    checkpoint55e_post
340    o some delicate re-shuffle of store directives to avoid one
341      extra call of do_oceanic_physics
342      affects ecco_the_main_loop.F, do_oceanic_physics.F
343      checkpoint_lev1_directives.h
344    o NB: this may break global_ocean adjoint temporarily,
345      but it is clear how to fix it. Will do later, need this now.
346    
347    checkpoint55d_post
348    o ECCO specific cost function terms (up-to-date with 1x1 runs)
349    o ecco_cost_weights is modified to 1x1 runs
350    o modifs to allow observations to be read in as
351      single file or yearly files
352    o enable to read exf forcing fields as either
353      single file or yearly files (flag useExfYearlyFields)
354    checkpoint55d_pre
355    
356    o switch between 2-level and 3-level checkpointing
357    o add ability of MNC to write local and "partial" (eg. 2D slices where
358      the full 3D field is never actually stored) arrays to NetCDF files
359      with the correct (that is, the complete multi-dimensional) set of
360      array indicies
361      - used in mom_vecinv() to write the diagFreq output
362      - tested (demonstrated) in verification/aim.5l_cs
363    o further mnc-ification
364      - add verification/lab_sea to the list with mnc setups
365      - fix undefined mnc v-names in cd_code
366      - add kpp to mnc output (both snapshot and timeave)
367    o non-hydrostatic code
368      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
369        in calc_gw.F
370      - defaults to viscAh
371      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
372        friction or Leith) in non-hydrostatic mode, as long as there is
373        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
374    o pkg/cost
375      extend simple cost functions to treat time mean quantities
376      (T,U,V) via cost_accumulate_state from cost_tile
377    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
378        be 2 times larger than the minimum size the advection scheme requires.
379        now get a perfect conservation of salt in advect_cs test-exp (updated)
380    o GGL90 (Gaspar's TKE mixed layer)
381      - add horizontal diffusion of TKE, requires exchanges in
382        do_fields_blocking_exchanges, horizontal diffusivity is zero by
383        default. In OPA there is no horizontal diffusion of TKE but the
384        mixing coefficients are computed from a horizontal average of TKE of
385        6 points or so. I think that diffusion has a little more physical
386        justification.
387      - clean up ggl90_calc in the hope of reducing memory usage (this hope
388        was in vain)
389      - mask tke-variable in ggl90_init
390    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
391    o fix biharmonic diffusion on CS-grid.
392    o more obcs stuff
393      - added obcs_external_fields_load as an alternative to the EXF-pkg option
394        for reading boundary values. This routine is called from
395        obcs_prescribe_read
396      - updated obcs_check
397      - changed sponge layer relaxation parameter units for days to seconds
398      - turned off sponge layer by default
399      - changed argument list of OBCS_CALC to myTime+deltaTclock
400      - fixed about 35 bugs in obcs_external_fields_load
401    
402    checkpoint55c_post
403    o obcs stuff
404      - new runtime flags useOBCSprescribe, useOBCSbalance
405      - re-arranged obcs_calc
406      - moved exf_getobcs to obcs_prescibe_read
407        obcs_prescibe_read is called after ORLANSKI stuff
408        and independent of it (executable can contain all).
409      - updated obcs_check
410      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
411        These may be necessary only if tangential velocities are
412        prescribed at OB, not sure, needs testing.
413    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
414      which simplifies the calls and passes the ifc check-bounds test
415    
416    checkpoint55b_post
417    o add a 2D scalar, Z location, exchange_2 routine.
418    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
419      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
420      affects advect_cs results (for the wrong reason): update output.txt
421    o use a more standard discretization for biharmonic viscosity ;
422     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
423      affects results of dome set-up: update output.txt
424    o fix gad_advection.F (CubedSphere part), back to version 1.23
425    o fix bug in mom_vi_del2uv.F (CubedSphere part).
426    
427    checkpoint55a_post
428    o merged code to
429      * prescribe/read time-dependent open boundaries
430        (works in conjunction with exf, cal)
431      * sponge layer code for open boundaries
432      * each boundary N/S/E/W now has its own CPP option
433        (healthy for the adjoint)
434    
435    checkpoint55
436    o up-to-date adjoint of previous breaks
437      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
438      - global_ocean_ebm: adjoint still needs fix (TLM ok)
439      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
440      - carbon: * remove tr1-related adjoint verification
441                * add ptracer as control variable
442    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
443      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
444    
445    checkpoint54f_post
446    o in verification/carbin/ remove experiment related to
447      ALLOW_PASSIVE_TRACER (array tr1 etc)
448      code_ad/ input_ad/ results_ad
449    
450    o add two new packages
451      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
452        + subject to optimization (memory)
453      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
454        + subject to reordering (many GOTOs in the original code)
455        + so far opps is called for every (i,j) point, and then operates in
456          the vertical; one may want to reorder the scheme in order operate in
457          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
458          fields)
459    o overhaul of IO so that we now have flags for MDSIO and/or MNC
460      - all verification tests compile and run with linux_ia32_g77
461      - defaults are compatible with current input files--nothing
462        should change if you were not previously using MNC
463      - MNC output has been added in numerous places (eg. timeave)
464        but there are still a few writes not yet do-able with MNC
465        (this is in progress)
466      - flags now allow for either/or/both use of MDSIO and MNC and
467        documentation will soon follow
468      - numerous small formatting cleanups for ProTeX
469    o add version info (via BUILD_INFO.h) to MNC and stdout
470    
471    checkpoint54e_post
472    o add two new packages
473      - pp81 (Packanowski and Philander, 1981), Richardson number and
474        stratification dependent mixing
475      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
476      - these scheme operate in a similar manner as KPP (without ghat, of
477        course), however there is only one diffusivity that is used for both
478        temperature and salinity (and passive tracers)ç
479    o add offline package
480    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
481      provided by Stephanie Dutkiewicz
482    o genmake2: add ability to search for C compilers and cleanup test output
483      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
484    
485    checkpoint54d_post
486    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
487    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
488      leading to additional shift by 5 days each year of integration
489       (i.e. leading to considerable offset over the years)
490    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
491    o start with no AB and no initial filtering (staggerTimeStep):
492      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
493    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
494      (external loading & cpl import/export stay in forward_step.F)
495    o update coupling interface to work with new staggerTimeStep
496    o change MDSIO ptracers_pickup.
497    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
498    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
499    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
500    
501    checkpoint54c_post
502    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
503      this affects (truncation error) output.txt of test-exp:
504       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
505    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
506    o change Qnet to always be the net heat flux, (+upward).
507      affects (truncation error) output of natl_box exp.: updated
508    o define the max number of passive tracers in PTRACERS_SIZE.h
509    o start to test mnc routinely in exp0
510    o add sea-ice loading (sIceLoad) as a new forcing field.
511    
512    checkpoint54b_post
513    o add testreport "-j JOBS" option for parallel builds (tested and pretty
514       impressive on Altix and Opteron systems)
515    o diagnostics can now write NetCDF files through the mnc package
516    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
517    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
518    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
519      affects (truncation error) output of lab_sea & natl_box exp.: updated
520    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
521    
522    checkpoint54a_post
523    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
524    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
525    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
526    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
527      + internal_wave (shift in writing cg2d_ini_res)
528    checkpoint54a_pre
529    
530    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
531      - modified verification/lab_sea and natl_box_adjoint accordingly
532    
533    checkpoint54
534    checkpoint53g_post
535    o prepare splitting of thermodynamics: store convect.counter in common block
536    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
537      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
538    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
539    o new parameter "nShapS": allow to treat differently S from T (nShapT)
540    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
541    o restore adjointability
542    
543    checkpoint53f_post
544    o modifications that affect AIM experiment results (update output.txt):
545      - no advection of S at top interface Nr (pkg/generic_advdiff)
546      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
547    o AIM pkg:
548      - include stability function into surf.Flux derivative relative to Tsurf
549      - calculate clear-sky radiation & surface temp. change (for diagnostics)
550    
551    checkpoint53e_post
552    o merged cylindrical coord configuration
553    o added rotating_tank experiment
554    checkpoint53e_pre
555    
556    checkpoint53d_post
557    o faulks upgraded: re-generate output.txt that have changed:
558       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
559    o Added Bryan and Lewis, 1979, vertical diffusivity profile
560    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
561    o added Sadourny discretization of Coriolis
562      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
563      - re-enabled use of omega3 (useAbsVorticity)
564    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
565      vector-invariant equations
566      - note: does *NOT* yet use same variable visc. for no-slip BC's.
567    o recoded the lateral boundary conditions for non-hydrostatic w, this time
568      hopefully without new bugs
569      - still to do: biharmonic friction for non-hydrostatic w
570    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
571    o regenerated output for global_ocean_ebm (using -ieee)
572    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
573      of mom_common/
574      - simple re-arrangement of instructions within computing loop
575    checkpoint53d_pre
576    
577    checkpoint53c_post
578    o new version of coupler for AIM+thSIce and Ocean models
579     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
580     - land: change Evaporation of snow
581     - aim with thSIce: fix bug in snow-precip.
582    o changes to calc_gw.F
583     - bug fix for w^2 term near the bottom boundary
584     - (hopefully) improve the lateral slip boundary condtions for use with
585        partial/looped cells
586      - because the bug fix changes two verification experiments anyway (exp5
587        and plume on slope), change the lateral boundary condition from half slip
588        to the value of no_slip_sides
589    o ebm package wasnt quite up to the parallel task. Fixed that.
590    o Adjoint of EBM package + verification
591      * TLM OK
592      * ADM not sufficient accuracy yet (needs further testing)
593    
594    checkpoint53b_post
595    o Commiting new energy balance model to repository
596      * package is pkg/ebm
597      * verif. is verification/global_ocean_ebm
598      * references are in ebm_driver.F
599    C      * X. Wang, P. Stone and J. Marotzke, 1999:
600    C        Global thermohaline circulation. Part I:
601    C        Sensitivity to atmospheric moisture transport.
602    C        J. Climate 12(1), 71-82
603    C      * X. Wang, P. Stone and J. Marotzke, 1999:
604    C        Global thermohaline circulation. Part II:
605    C        Sensitivity with interactive transport.
606    C        J. Climate 12(1), 83-91
607    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
608    C        Destabilization of the thermohaline circulation
609    C        by atmospheric eddy transports.
610    C        J. Climate 7(12), 1870-1882
611    o Will need long integration testing.
612    checkpoint53b_pre
613    
614    o created pkg/mom_common in preparation for variable viscosity code
615    o renamed and split ini_mnc_io
616    o pkg/land: only liquid water can diffuse or run-off
617    o AIM using land: soil wetness availability account for snow
618    o added printMapIncludesZeros to EEPARMS namelist
619    
620    checkpoint53a_post
621    o restore TAMC compatiility for exf_constants.h
622      (no usage of _d in .h)
623    o Additional storing in KPP in an attempt to fix
624      TAMC problem with adjoint of KPP code.
625      (no success...)
626      Identical code works fine with TAF.
627    o Fixed verification/natl_box_adjoint experiments.
628      Initial conditions for Experiments 4 and 5 are now
629      set to "SEAICE_initialHEFF=0", which is more reasonable,
630      and hence gives results closer to that of Experiment 2.
631      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
632    
633    checkpoint53
634    o stable checkpoint with up to date adjoint
635      TLM tests only run for 1st grdchk at the moment. Its unclear if
636      this is a code problem or a problem with resetting code for g_
637      variables that is being autogenerated wrong.
638      Otherwise:
639       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
640       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
641         are both still in chaos following their security messes.
642    
643    checkpoint52n_post
644    o various build (mostly genmake2) changes including:
645      - ability to build/run more easily within Cygwin and MacOS X
646      - more complicated Makefiles with a stronger dependence on Gnu Make
647    o pkg/seaice modifications
648      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
649        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
650        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
651      - changed proxy for geostrophic velocity and updated
652        verification/lab_sea/results/* accordingly
653      - removed ADI dynamic solver from pkg/seaice
654      - replaced all occurrences of 1/CSTICE or 1/CSUICE
655        they caused a segmentation fault under certain circumstances
656      - removed unused field WATR
657    o bug fix in exf-package:
658      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
659         now reflect that.
660    o small fixes in the cal-package:
661      - set reference date to first of January for the 'model'-calendar
662      - failing of cal_CheckDate in cal_FullDate now actually results in a
663        warning
664    o small modifications in exf-package to increase flexibility:
665      - change climtempfreeze from a constant to a runtime parameter that
666        is specified in data.exf_clim (default = -1.9)
667      - introduce runtime parameter windstressmax (default = 2.0) that is
668        specified in data.exf
669    o fix in pkg/thsice:
670      - update Evap (Tsf changes) to be consistent with Latent heat flux
671      - maintain snow precipitation unchanged (even if Tsf >=0).
672     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
673    
674    checkpoint52m_post
675    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
676      this does not change any of the results, because myIter=0 in swfrac always
677      lead to jwtype=2 (the default anyway), but the call makes little sense
678      as a default
679    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
680    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
681      atmospheric model (AIM) to use it ; add a "slab ocean" component.
682    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
683    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
684    o extending useSingleCpuIO option to work with new exch2 I/O format
685      - old-style, missing-tile I/O is still accessible by defining CPP
686        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
687    o monitor package can write to NetCDF files and/or STDOUT
688    o fix re-definition bug in MNC_GRID_INIT_ALL()
689    o doc/api_reference added
690      - a framework for building an API Reference Manual using all
691        the "protex" comments embedded in the code
692      - see pkg/generic_advdiff, pkg/mnc for examples
693    o MNC:
694      - make myThid the last argument for all subroutines
695      - new default for the grid files: NO halos
696      - add useMNC and other run-time flags
697      - separate per-file-group handling of the unlimited dimension
698      - early initialization of MNC w/ flags read at the eeboot stage
699        and lookup tables set in initialize_fixed
700      - write all MNC output to a freshly-created directory
701    o thermodynamics sea-ice (thsice) is now tested with testreport.
702    o test exp. advect_cs: use the standard cs32 grid ; update output.
703    o Added functionality to grdchk:
704      pick global i,j,k position (or nearest wet) where to perform check.
705    
706    checkpoint52l_post
707    o new land formulation:
708      a) use ground enthalpy as prognostic variable to ensure exact
709         energy conservation.
710      b) account for water temperature and for latent heat of freezing
711         in all processes (rain, run-off, ground storage)
712      c) compute surface and ground temperature implicitly.
713    o aim_v23 modification for new land model:
714      a) Treat separately land / ocean / sea-ice surface fluxes
715         to allow implicit computation of land & sea-ice surface temp.
716      b) add snow precipitation.
717    checkpoint52l_pre
718    
719    o fix problem (when 1 tile is empty) in min/max monitor.
720    o fix bug in timeAve (u,vZetatave in common block)
721    o no restoring terms under ice for pkg/seaice
722    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
723    o bug fix for pkg/seaice pickups
724    o change MNC call locations and add coordinate attributes
725    o mask vorticity at the corner ; affects global_ocean.cs output
726    o fix ini_curvilinear_grid ; test CS experiments with mpi
727    o aim.5l_cs: modify sea-ice fraction input file ; update output
728    o exf: Adding simple range check routine for exf fields after read
729    
730    checkpoint52k_post
731    o removed top-level directory "diags"
732      - we migrated these functions to pkg/timeave a long time ago
733    o fixed bug introduced in pkg/monitor
734    o accuracy ctrlprec = 32 insuffient for gradient checks using
735      averaged fields (I/O via cost_averages)
736      -> use ctrl.h in active_file*.F to control I/O precision.
737    o paramter list of CALL ADTHE_MAIN_LOOP
738    o added initial do_the_model_io to ecco
739    o set all ...Freq to zero after cost_final
740      taveFreq, dumpFreq, pChkptFreq
741    o MAIN and ECCO differentiability restored
742    
743    checkpoint52j_post
744    o fix nchklev in tamc.h for global_ocean...
745    o Bringing flow and store directives up-to-date
746    o Really weird thing!
747      call do_the_model_io from the_main_loop with parameters
748      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
749      TAF places a faulty re-call of initialise_varia
750      after cost_final call which should not be there!
751    checkpoint52j_pre
752    
753    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
754      error messages
755    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
756    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
757      debug output
758    o modfied mdsio_writefield.F to handle non-global files under exch2
759    o update AIM Cubed-Sphere exp (aim.5l_cs):
760      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
761    o update AIM Equatorial Channel exp:
762      use standard aim_v23 pkg and change the SST fields to be more realistic.
763    o globalFile now works with exch2
764    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
765      mon_vort3.F to make exch2 friendly with >1 tile per cube face
766    o limit timeave output for hi-res integrations
767    
768    checkpoint52i_post
769    o removed CPP_EEOPTIONS.h from verification/*/code
770    o updated the tiling for global_ocean_pressure
771    checkpoint52i_pre
772    
773    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
774      the old pkg/aim).
775    
776    checkpoint52h_pre
777    o shortened offending lines in exch2_send_rx?.template
778    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
779    o genmake2: add build & execute test for NetCDF code
780    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
781      old grid files, moved CPP_EEMACROS.h to pkg/exch2
782    o added useSingleCPUIO flag to monitor.F and mon_out.F
783    o added temporary hack for sea-ice dynamics on the cube:
784      metric terms are ignored and it is assumed that
785      there is no sea-ice on cube faces 1, 2, 4, and 5.
786    
787    checkpoint52f_post
788    o added exch2 cube routines to pkg/exch2
789    o modified hs94.cs-32x32x5 to use it
790    o added new grid files to hs94.cs-32x32x5
791    checkpoint52f_pre
792    
793    checkpoint52e_post
794    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
795      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
796    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
797      to work with implicit vertical advection and AB ;
798    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
799    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
800     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
801    checkpoint52e_pre
802    
803    o fix bug in impldiff when Nr=1 or Nr=2.
804    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
805    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
806    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
807      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
808    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
809    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
810    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
811    
812    checkpoint52d_post
813    o re-tiled many expts to allow comparison in multi-processor mode
814      - updated output accordingly
815      - changed hs94.128x64x5 to use intial T from file rather than use the
816        random number generator
817    o add infrastructure in model routines for fizhi and gridalt packages
818    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
819    o changes to permit hi-res, cubed-sphere, configuration
820      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
821      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
822      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
823        of surface winds for the cube
824      (A verification experiment, based on global_ocean.cs32x15, but with
825       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
826       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
827       complete with example surface forcing files and matlab scripts to look
828       at the output and compare it with that of global_ocean.cs32x15.)
829    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
830       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
831       to conform to the common rule.
832    o check-in the first version of the coupler + interfaces for multi-components
833       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
834       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
835       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
836       - ocean and atmos. share the same horizontal grid (no interpolation).
837       - exchanges between component and coupler is done in forward_step
838    o new verification experiment, cpl_aim+ocn:
839       coupled ocean - AIM atmosphere on cs32 grid.
840    
841    checkpoint52d_pre
842    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
843    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
844    
845    checkpoint52c_post
846    o Fixing OPTIONS files for use of exf:
847      - ALLOW_ECCO not needed
848      - ECCO_CPPOPTIONS.h should not be included from
849        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
850        as has been the case in the past
851      - All cal/exf related options are currently set in
852        single header file. Should remain so until we
853        agree on a consistent new policy.
854    o Removed all CPP options for cal package.
855      cal has no more CPP options.
856    o modified STOREs in GAD_ADVECTION
857    o corrected key comp. for passkey
858    
859    checkpoint52b_post
860    o new version: "thsice" of thermodynamic sea-ice pkg:
861     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
862     - modify fluxes but do not change theta directly;
863     - light cleaning of bulk_force pkg (still needed with thsice).
864     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
865       + output_thsice.txt to test thsice & bulk_force pkgs.
866    o put back grid & coriolis monitor output.
867    checkpoint52b_pre
868    
869    o call "do_the_model_io" at the beginning (=> dump initial state)
870    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
871    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
872      (need info on NUMBER_OF_PTRACERS)
873    o missing PTRACERS headers in some routines
874    o default tamc.h in pkg/autodiff supposed to crash
875      to ensure proper customization
876    
877    checkpoint52a_post
878    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
879      - moved surfaceTendencyTice from pkg/seaice to main code
880      - subroutine FREEZE_SURFACE now limits only surface temperature
881        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
882        => new output.txt for global_ocean.cs32x15 & global_with_exf
883      - keep the old version of FREEZE for backward compatibility;
884        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
885      - corresponding modifs for TAF directives
886    o added surface flux output variables to TIMEAVE_STATVARS
887    o time-averaged output for pkg/ptracers
888    o fix problem with ECCO-related divided adjoint
889      snapshot file was missing some ad-variables,
890      but no warning issued by TAF
891    
892    checkpoint52a_pre
893    o some bug fixes for #undef REAL4_IS_SLOW
894    
895    checkpoint52 = ecco_c52_e35
896    o after testing adjoints of checkpoint51u_post
897    
898    checkpoint51u_post
899    o this is the post-merge tag of the ecco-branch
900      (needs another clean checkout and re-testing)
901    o various natl_box_adjoint configs and results
902      but no input fields
903    o obcs adjoint not yet merged!
904    o adding ECCO global 1x1 and 2x2 degree configs
905    o updated/extended some store directives for seaice
906    o pkg/ecco now containes ecco-specific part of cost function
907    o top level routines the_main_loop, forward_step
908      supersede those in model/src/
909      previous input data.cost now in data.ecco
910      (new namelist ecco_cost_nml)
911    o in ctrl/ cleaned some cross-dependencies and updated CPP options
912    
913    checkpoint51t_post
914    o this is the pre-merge tag of the ecco-branch
915    
916    checkpoint51s_post
917    o cleanup: removed various obsolete #define-s
918    o pkg/grdchk
919      - renamed 'ph-grd 3' to 'grad-res'
920      - merged from ecco-branch
921        (remaining bug fixes for obcs gradient checks)
922      - additional high-precision output for testreport
923        (grep for 'precision_grdchk_result')
924    
925    checkpoint51r_post
926    o cleaned up or removed CPP_OPTIONS.h files
927    o updated results for some of the tests to reflect the new
928      optfiles (-ieee: -O0 instead of -O3)
929    
930    checkpoint51q_post
931    o cd_code:
932      - moved cd_scheme.F -> cd_code_scheme.F
933      - separate read_checkpoint from cd_code_ini_vars.F
934      - separated cd_code part from write_checkpoint
935      - updated AD_SOURCE, generated .flow
936      - added CD_CODE_VARS.h to the_main_loop
937      - Moving cd_code specific store dir.s to pkg/cd_code
938    o ctrl package totally restructured
939      - pack/unpack now optional and decoupled from
940        xx_/adxx_ I/O
941      - ctrl_pack/unpack cleaned
942        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
943      - confined inclusion of AD_CONFIG.h to where necessary.
944    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
945    
946    checkpoint51p_post
947    o create initial cd_code package
948      - WARNING: the initialization of fields within packages
949        is broken because INI_FIELDS (where READ_CHECKPOINT is
950        called) is called *before* PACKAGES_INIT_VARIABLES.
951        This seems to be backwards since
952        1) its important to initially zero the entire field including
953           the "halo" region
954        2) zeroing needs to be done *before* reading pickup info
955           and the pickup call might or might not happen in any
956           particular run
957      - this needs an overhaul for R2
958    o cleanup verification/*/code/GMREDI_OPTIONS.h
959    o cleanup testreport
960    
961    checkpoint51o_post
962    o bringing AD-related verif's up to date with genmake2
963      - carbon/
964      - global_ocean.90x40x15/
965      - hs.94.1x64x5/
966      - (front_relax/ )
967    o (more) consistent directory structure for AD-related verif.'s
968    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
969    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
970    o bug fix in find_alpha.F for MDJWF:
971      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
972        change rho -> rho-rhoConst
973      - replace call find_rho to find_rhonum
974    o initialisation of rFlx extended to full array (required by TAF)
975      and shifted to thermodynamics
976    o removed PTRACERS.h in ptracers routine
977    o added surfacetendencyPtr to S/R parameter list pracers_forcing
978    o Correcting initialisations for fVerU, fVerV.
979    o helping TAF to recognize dependency on kUp for
980      fVerU, fVerV
981    o Replacing delZ by delR in pkg/ctrl/
982    checkpoint51o_pre
983    
984    o undid all of cp51 pending some cleanups and discussion
985    o added the [#include "AD_CONFIG.h"] statement to all files that need
986       it for adjoint/tl #defines
987     o re-worked the build logic in genmake2 to support AD_CONFIG.h
988     o removed tools/genmake since it no longer works
989    
990    checkpoint51n_post
991    o modifications to make FREEZE flux visible to pkg/kpp
992      - moved surfaceTendencyTice from pkg/seaice to main code
993      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
994      - subroutine FREEZE now limits only surface temperature
995        (this means new output.txt for global_ocean.90x40x15,
996         global_ocean.cs32x15, and global_with_exf)
997    o added surface flux output variables to TIMEAVE_STATVARS
998    
999    checkpoint51n_pre
1000    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1001    o added [#include "AD_CONFIG.h"] to all files that use the following
1002      defines:
1003      - ALLOW_ADJOINT_RUN
1004      - ALLOW_TANGENTLINEAR_RUN
1005      - ALLOW_ECCO_OPTIMIZATION
1006    
1007    checkpoint51m_post
1008    o incorporating changes to get TAMC/TAF working in genmake2
1009      - added new TAMC/TAF targets to the Makefile
1010      - various cleanups related to package handling
1011      - these changes should have no impact on the forward model
1012    
1013    checkpoint51l_post
1014    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1015     - faster algorithm for cal_addtime.F
1016     - higher precision arithmetic, where needed
1017     - pkg/exf *startdate variables changed from calendar date to
1018       model integration time
1019    
1020    checkpoint51l_pre
1021    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1022    o enable to apply restoring on S & T only in a latitude band.
1023    o update output (external_forcing_surf modif. change truncation errors)
1024       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1025    
1026    checkpoint51k_post
1027    o change default to: useNHMTerms=.FALSE.
1028     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1029       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1030     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1031        exp1, ideal_2D_oce
1032     - change data file of oceanic exp (leave the results unchanged for now)
1033       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1034    o set gravitySign automatically according to the vertical coordinate used
1035      (and change sign: back to "logical" value: +1 when R increases downward)
1036    o added an include barrier to the default CPP_OPTIONS.h and
1037      removed the #include "PACKAGES_CONFIG.h" from it
1038    o fix a bug in mom_fluxform (from chk51j_post)
1039    
1040    checkpoint51j_post
1041    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1042    o adjusted some flow directives (dynamics, thermodynamics)
1043    o added cubed-sphere case to test cost function
1044    o heckpoint_lev?_directives.h now include
1045      pkg-specific directives, whenever those are enabled.
1046    o Moving pkg-specific flow directives to corresponding pkg
1047      Moving pkg-specific differentiation list to corresponding pkg
1048      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1049      ---> conventions are
1050           - pkg_ad.flow
1051           - pkg_ad_diff.list
1052           - pkg_ad_check_lev?_dir.h
1053    
1054    checkpoint51i_post
1055    o merge of the branch-genmake2
1056      - knowingly breaks the older genmake
1057      - automatic generation of all ALLOW_${PKG_NAME} defines
1058      - new testreport supersedes older testscript
1059    o large number of package inclusion and header cleanups
1060    checkpoint51i_pre
1061    
1062    o new output for adjoin of global ocean vector invariant
1063    o fix for checkpoint of thermodynamic seaice and bulk_force
1064    o Steph gchem various cleanups
1065    
1066    checkpoint 51h_pre
1067    o fixed some single quotes
1068    o modify gchem pkg to be more versatile
1069    o modifications to clean up dic pkg
1070    o add pkg/cfc
1071    
1072    checkpoint51g_post
1073    o provide links for ARPACK and ADM*TLM
1074    o start removing verification/vero/
1075    o update AD-related stuff
1076      (in particular some IF-statements in model/src/ routines)
1077    o adding to verification/global_ocean.90x40x15/ adjoint of
1078      vector invariant setup
1079    
1080    checkpoint51f_post
1081    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1082    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1083      of tracer Green's fucntions for ocean inversion project.
1084    
1085    checkpoint51f_pre
1086    o Added on-the-fly spatial interpolation capability
1087        "USE_EXF_INTERPOLATION" to pkg/exf.
1088      - This is a temporary Cartesian-grid hack until
1089        the super-duper ESMF coupler becomes available.
1090      - See verification/global_with_exf/README for usage example.
1091      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1092        flags and modified pkg/seaice accordingly.
1093    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1094        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1095        non-local transport term.
1096    
1097    checkpoint51e_post
1098    o pkg/mom_vecinv:
1099      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1100      - add time-ave diagnostic of vorticity advection.
1101    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1102    o atmospheric geopotential: - include water vapor effect;
1103                                - use p^kappa in p* scaling.
1104    o land pkg: read initial state from files.
1105    o AIM : add stratospheric drag in the upper level
1106    
1107    checkpoint51d_post
1108    o change function ILNBLNK (=> last non-blank char.) to return zero
1109      (instead of the string length) when the string. char is empty
1110    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1111    o modif's to restore TAMC compatibility
1112      - avoid "_d" constructs in PARAMETER declarations
1113      - avoid interrupting lines by comment lines
1114    o Use cluster local disks for purely local I/O
1115      vs. globally visible disks needed for ctrl stuff
1116      (merged from ecco-branch)
1117      - new active_file_loc... and mdsio_..._loc routines
1118      - affected packages: autodiff, ctrl, grdchk, mdsio
1119    
1120    checkpoint51c_post
1121    o introducing integer flag debugLevel
1122      - debLevZero: suppress all output
1123      - debLevA: standard
1124      - debLevB: equivalent to current debugMode=.TRUE.
1125    o introducing pathname variable mdsioLocalDir for mdsio
1126      that can be specified at runtime
1127      (relevant for cluster I/O to local disk)
1128    `
1129    >>>checkpoint51b_post
1130    adjoint of ptracers
1131    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1132    o extended state in checkpoint_lev?, etc.
1133    o alternative ctrl/cost with tr1 or ptracer
1134    o new comlev1_bibj_ptracers
1135    o new ptracers.flow
1136    o made ptracers_forcing same as external_forcing_s
1137    o added verification for adjoint with ptracers
1138      - adm. grdchk fail so far
1139      - tlm. grdchk OK
1140      - checked tapelev/comlev recomputations: OK
1141    <<<checkpoint51b_pre
1142    
1143    checkpoint51a_post
1144    o added code for biogeochemistry package
1145      - new pkgs: dic, gchem
1146      - new subroutine in ptracers
1147    o modify code for biogeo packages
1148      - in model/src and pkg/ptracers
1149    
1150    checkpoint51
1151    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1152      - autodiff, ctrl, exf, grdchk, seaice
1153      kept separate packages
1154      - cost, ecco, obcs
1155    o updating verification/internal_wave, verification/lab_sea
1156      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1157    
1158    checkpoint50i_post
1159    o Preparing next differentiable checkpoint and sync
1160      of MAIN vs. ecco-branch
1161      - 1st step: this one is differentiable
1162      - 2nd step: next(! not this) checkpoint will have updated packages
1163                  from ecco-branch)
1164    
1165    checkpoint50h_post
1166    o new package "land": provide surface BC for AIM.
1167    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1168    o AIM: use true log-P extrapolation for near surface temp (= as in
1169        F.Molteni paper) ; update aim.5l_cs output.
1170    o New variable in PARM03 for more flexible pickups
1171    o somewhat cleaned package initialisation sequence for
1172      ctrl/ cost/ ecco/ in packages_... routines
1173    
1174    checkpoint50g_post
1175    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1176      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1177      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1178        made the default because of faster convergence than ADI
1179    
1180    checkpoint50f_post
1181    o exf totally restructured
1182      - replaced all exf_set_ routines by one generic exf_set_gen.F
1183        and made sure it's still differentiable
1184      - split exf_getffields.F into new exf_bulkformulae.F
1185      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1186      - updated adjoint/makefile and relevant verif. accordingly
1187    
1188    checkpoint50f_pre
1189     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1190          + change Evap over land. (update aim.5l_cs output)
1191     o added missing .cvsignores and made uniform across expts
1192     o changed configuration of tidal_basin_2d expt
1193     o added pkg/debug functions for tracing code in fatal crashes
1194     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1195     o new fn in pkg/monitor to stop model if solution grows too big
1196     o removed lots of single quotes from comments
1197    
1198    checkpoint50e_post
1199    o make KPP work with PTRACERS
1200     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1201       nearly a copy of kpp_transport_s
1202     - there is no analogue to SurfaceTendencyS, so I have to use
1203       gPtr(of the surface layer) instead
1204    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1205    checkpoint50e_pre
1206    
1207    checkpoint50d_post
1208    o change kpp output from multiple-record state files to single-record state
1209      files analogous to write_state.F
1210    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1211      analogous to the cg2d-related output.
1212    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1213      so that writing to internal file fn (with length 512) fails.
1214    checkpoint50d_pre
1215    
1216    checkpoint50c_post
1217    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1218    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1219    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1220    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1221    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1222    
1223    checkpoint50c_pre
1224    Merging from release1_p13:
1225    o bug fix for pkg/seaice dynamic solver
1226    o Added SEAICE_initialHEFF to pkg/seaice
1227    
1228    checkpoint50b_post
1229    o store u*,v* in gU,V instead of in guNm1,gvNm1
1230    o in order to put the momForcing out of the Adams-Bashforth:
1231      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1232      to timestep.F
1233    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1234    o re-generate output for highly sensitive test-exp:
1235       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1236    
1237    checkpoint50b_pre
1238    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1239    o corrected CPP option mismatch in exf_Bulk... functions for case
1240      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1241    
1242    checkpoint50a_post
1243    o Bug fix for merging between c50 and KPP.
1244      ikey was passed from thermodynamics to kpp_calc via
1245      common block rather than being recomputed in kpp_calc,
1246      in contradiction with new key itdkey.
1247      New key ikppkey created, and tamc.h headers updated.
1248    
1249    checkpoint50
1250    - 2nd step of merge with ecco-branch:
1251      merge changes in ecco-branch back into main trunk
1252    - bug fix in find_alpha
1253    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1254    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1255    - merged some sliced AD support routines
1256    
1257    checkpoint49
1258    merged from ecco-branch:
1259    o exf:
1260      - Enable initialisation of forcing fields to constant
1261        (runtime) values.
1262      - in exf_getffields.F
1263        Reduce i-/j-loop to interior domain, discarding overlaps.
1264        That also fixes wrong TAF-key computations for key_1, key_2
1265        with bulf formulae.
1266      - exf_init.F modify #ifdef for exf_init_evap
1267      - exf_getffieldrec.F, ctrl_getrec.F
1268        The following INT-usages are not safe:
1269          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1270          fldcount = int(fldsecs/fldperiod) + 1
1271        and were modified.
1272    o autodiff: checkpoint_lev...
1273      - updated storing for bulk formulae (some arrays were missing)
1274      - added state for seaice package
1275      - synchronized with main branch
1276    o DIVA:
1277      Modif.s in
1278      - the_main_loop.F
1279      - the_model_main.F
1280      and added cost_final_restore.F cost_final_store.F
1281      o With these changes, it is possible to fully separate
1282        the first forward run to compute the cost function (mdthe_main_loop)
1283        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1284        into separate model executions.
1285        This enables better tuning of DIVA to given queue sizes.
1286      o Loss of cost function value in consecutive DIVA runs is
1287        fixed by storing to 'costfinal' file.
1288      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1289        beginning/end of adjoint integration is accounted for.
1290      The current changes apply to TAF-1.4.26.
1291      TAF has one remaining bug, requiring one manual change
1292      (see MITgcm manual).
1293    o cal: synchronized between MAIN and ecco-branch
1294    
1295    checkpoint48i_post
1296    o Changes to restore differentiability of code w.r.t. previous tag
1297      (mostly adding new routines to make list and replacing
1298      pressure by totPhiHyd).
1299    o Updated and merged grdchk package
1300      - has both ADM and TLM checks
1301      - works for single- and multi-proc.
1302      - output cleaned
1303      - worked successfully for parallel DIVA
1304    o genmake:
1305      - Adding -platform=SP4
1306      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1307    o Modif. for DIVA:
1308      ctrl_unpack should not be called in intermediate DIVA interval.
1309      (similar thing would apply for active files such as
1310      tbar, sbar, psbar, which should not be reinitialised;
1311      only relevant for ecco-branch)
1312    
1313    checkpoint48h_post
1314    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1315    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1316    o Added SEAICE_initialHEFF to pkg/seaice
1317    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1318    
1319    checkpoint48g_post
1320    --- EOS:
1321    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1322      store total Potential in totPhyHyd for diagnostics & EOS.
1323    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1324    --- Pressure/geopotential gradient:
1325    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1326    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1327      ( changes results of global_ocean_pressure )
1328    o NLFS + z-coord.: add eta*Rho' contribution.
1329    o accurate phiHyd when using interface-W at the middle between 2 centers
1330     ( changes results of ideal_2D_oce )
1331    o includes r* 2nd term in potential gradient.
1332    
1333    checkpoint48f_post
1334    Merging from release1_p12:
1335    o Modifications for using pkg/exf with pkg/seaice
1336      - improved description of the various forcing configurations
1337      - added basic radiation bulk formulae to pkg/exf
1338      - units/sign fix for evap computation in exf_getffields.F
1339      - updated verification/global_with_exf/results/output.txt
1340    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1341      (SBO) core products, including oceanic mass, center-of-mass,
1342      angular, and bottom pressure (see pkg/sbo/README.sbo).
1343    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1344      to avoid negative values in shallow regions.
1345      - updated verification/natl_box/results/output.txt
1346      - updated verification/lab_sea/results/output.txt
1347    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1348    o Added useSingleCpuIO option (see PARAMS.h).
1349    o Updated useSingleCpuIO option in mdsio_writefield.F to
1350      work with multi-field files, e.g., for single-file pickup.
1351    o pkg/seaice:
1352      - bug fix in growth.F: QNET for no shortwave case
1353      - added HeffFile for specifying initial sea-ice thickness
1354      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1355    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1356      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1357    o pkg/seaice:
1358      - adjoint-friendly modifications
1359      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1360    
1361    checkpoint48e_post
1362    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1363    o dynamics: change definition of computational domain & adapt mom_fluxform
1364      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1365    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1366        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1367        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1368        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1369        inverted_barometer solid-body.cs-32x32x1
1370      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1371    
1372    checkpoint48d_post
1373    o in preparation for r*:
1374     a) use pre-computed gradient of hydrostatic potential:
1375        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1376     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1377        => affects results of glob_oce_pressure (different truncation error)  
1378      update output.txt of ideal_2D_oce & global_ocean_pressure
1379    
1380    checkpoint48d_pre
1381    o in preparation for r*:
1382      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1383      pass the 2 comp. of the grad. as arguments to momentum S/R.
1384      but for the moment, only used if it does not change the results.
1385    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1386    
1387    checkpoint48c_post
1388    Modifications in treatment of initial flux forcing controls
1389    to avoid extra storing of flux fields.
1390    
1391    checkpoint48c_pre
1392    o Added tidal_basin_2d experiment (currently 1D!)
1393    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1394    
1395    checkpoint48b_post
1396    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1397     (modification to pressure gradient not yet implemented)
1398    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1399      (for U & V) that are used for vertical advection of momentum.
1400    
1401    checkpoint48a_post
1402    o In preparation for r*, use temp. array to compute vertical transport
1403       in flux-form momentum pkg. => change results of few test-exp.
1404      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1405                        lab_sea, natl_box & plume_on_slope
1406    
1407    checkpoint48
1408    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1409    
1410    checkpoint47j_post
1411    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1412    o moved adexch from forward_step to addummy_in_stepping
1413    o added exch in ctrl_map_...
1414    o aveFreq.=0. at end of cost_final to avoid overwrite in
1415      reverse checkpointing loop
1416    o Yet more changes in gmredi:
1417      * adgmredi_calc_tensor
1418        avoiding all recomputation of gmredi_slope_limit
1419      * adgmredi_x/y/rtransport
1420        added flag for excessive storing to avoid recomp. of
1421        u/v/rtans, dTdx/y/z
1422        -> this is not really necessary and very memory-consuming
1423      * adgmredi_slope_psi:
1424        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1425      * gmredi_slope_limit
1426        re-activated full calculation of taperfct for case 'ac02'
1427    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1428    
1429    checkpoint47i_post
1430    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1431    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1432      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1433    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1434    o gmredi: fix few bugs.
1435    
1436    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1437    This will be a good checkpoint to plug into the ecco-branch.
1438    o few modif.'s to get latest version adjointed
1439      (mainly kick out code in ini_linear_phisurf)
1440    o modif's to run adjoint with exactConserv
1441    o case GM_BOLUS_ADVEC should be cleaned
1442      S/R gmredi_slope_psi should be cleaned
1443    o verification/carbon now has exactConserv=.TRUE.
1444    
1445    checkpoint47g_post
1446    o time-average AIM output: becomes independent from statvars time-average
1447      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1448    o After TAF bug fix:
1449      Tested adjoint of gmredi package.
1450      Tests were done with checkpoint47 rather than with latest
1451      checkpoint47f_post since the latter is broken for the adjoint
1452      verification/carbon/ contains both ADM and TLM gradient checks.
1453    Here they are, before they get changed/lost/stolen.
1454    Mostly modif.'s to fix numerical sensitivities.
1455    Gradient checks OK for
1456    - GM_taper_scheme:
1457      * clipping
1458      * ac02
1459      * linear
1460      * glw91
1461      * dm95
1462      * ldd97
1463    - GMREDI_OPTIONS:
1464      * GM_VISBECK_VARIABLE_K
1465      * GM_NON_UNITY_DIAGONAL
1466      * GM_EXTRA_DIAGONAL
1467      * GM_BOLUS_ADVEC
1468    in conjunction with data.gmredi parameters to be checked in
1469    in a few minutes under verification/carbon/code/
1470    
1471    checkpoint47f_post
1472    Merging from release1_p10:
1473    o modifications for using pkg/exf with pkg/seaice
1474      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1475        and SEAICE_EXTERNAL_FLUXES
1476      - pkg/exf CPP options EXF_READ_EVAP and
1477        EXF_NO_BULK_COMPUTATIONS
1478      - usage examples are Experiments 8 and 9 in
1479        verification/lab_sea/README
1480      - verification/lab_sea default experiment now uses
1481        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1482    
1483    checkpoint47e_post
1484    o created a tag prior to creating a branch
1485    
1486    checkpoint47d_post
1487    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1488      at the bottom boundary had an erroneous half slip boundary condition
1489    o added bottom drag and no slip boundary condition capabilities to
1490      oceanic pressure coordinates code
1491    o added new verification experiment global_ocean_pressure, this experiment is
1492      also described in the tutorial section of the manual
1493    checkpoint47d_pre
1494    
1495    checkpoint47c_post
1496    o Added a verification experiment for a global cubed-sphere ocean run
1497      -  verification/global_ocean.cubed32x32x30
1498      -  uses pkg/therm_seaice and pkg/bulk_forcing
1499    
1500    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1501    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1502      when using P-coordinate; only implemented for atmospheric config.
1503    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1504      NOTES: requires option NONLIN_FRSURF to be "#define".
1505    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1506    
1507    checkpoint47b_post
1508    Merging from release1_p9:
1509    o pkg/seaice
1510      - removed GOTO's and added taf directives
1511      - double precision constants to reduce the g77 (Linux)
1512        to F77 (SGI) differences reported in release1_p8
1513    o tools/genmake
1514      - added SGI options
1515    o verification/testscript
1516      - updated to that of checkpoint47a_post
1517    o verification/global_ocean.90x40x15/input/eedata
1518      - modified for SGI f77 compatibility
1519    o verification/lab_sea
1520      - added description of sea-ice model
1521      - added missing matlab routines
1522      - added test of thermodynamics parallelization
1523    
1524    checkpoint47a_post
1525    o new pkg: aim_v23
1526     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1527       for now, keep the same surface forcing as before.
1528     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1529     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1530     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1531    o add diagnostic of surface correction term in monitor output
1532    
1533    o bulk_force and therm_seaice
1534    - Two packages:  bulk_force (Bulk forcing)
1535      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1536    - Earlier integration from Stephaine Dutkiewicz
1537      and Patrick Heimbach.
1538    - Two ifdef statements for compile time,
1539       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1540    
1541    checkpoint47
1542    differentiable version of checkpoint46n_post
1543    o bug fix in quasihydrostaticterms
1544    o * "clean" adjoint code (in terms of extensive recomputations)
1545        can now be obtained for all GMREDI options (i.e. for
1546        - GM_VISBECK_VARIABLE_K
1547        - GM_NON_UNITY_DIAGONAL
1548        - GM_EXTRA_DIAGONAL
1549        - GM_BOLUS_ADVEC )
1550      * However, wrong gradient check problem remains unsolved.
1551      * New CPP options have been introduced for different
1552        tapering schemes
1553    o external_fields_load now part of differentiation list
1554    o pressure needs multiple storing;
1555      would be nice to have store_pressure at beginning or
1556      end of forward_step, e.g. by having phiHyd global (5-dim.)
1557      (NB: pressure is needed for certain cases in find_rho,
1558      which is also invoked through convective_adjustment).
1559    o recomputations in find_rho for cases
1560     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1561    o #define ATMOSPHERIC_LOADING should be differentiable
1562    o ini_forcing shifted to begining of initialise_varia
1563    o Incorporating QNVS line search routines into MITgcm
1564      (this is separate code, and therefore not under pkg)
1565      lsopt/, optim/
1566    o Updated verification/carbon/
1567      - #define GM_VISBECK_VARIABLE_K
1568      - GM_taper_scheme    = 'ldd97'    
1569    
1570    checkpoint46n_post
1571    Merging from release1_p8:
1572    o verification/natl_box:
1573      updating new external_fields_load routine
1574    o New package: pkg/seaice
1575      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1576      The sea-ice code is based on Hibler (1979-1980).
1577      Two sea-ice dynamic solvers, ADI and LSR, are included.
1578      In addition to computing prognostic sea-ice variables and diagnosing
1579      the forcing/external data fields that drive the ocean model,
1580      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1581      The implied surface heat flux is then stored in variable
1582      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1583      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1584      non-local transport term.  Because this call precedes model
1585      thermodynamics, temperature under sea-ice may not be "exactly" at
1586      the freezing point by the time theta is dumped or time-averaged.
1587      N.B.: fairly large differences in accuracy occur across
1588            different platforms/compilers; comparison between
1589            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1590            generated output gives:
1591       T           S           U           V
1592      C D M    c        m  s        m  s        m  s        m  s
1593      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1594      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1595      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1596    
1597      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1598    o GAD:
1599      - generated new common blocks to account for call of
1600        same gad routines with differing traceridentities
1601        (needed to modify tracerIdentity indices in GAD.h)
1602      - generated separate common blocks for case useCubedSphereExchange
1603        (Department of Futurology)
1604      - parameter lists to gmredi_?transport: added tracerIdentity
1605      - added new key indices to tamc.h
1606    o external_fields_load:
1607      - added this routine to TAF list
1608      - needed to make some common blocks global and additional storing
1609        along the same lines as exf package (checkpoint_lev?_directives.h)
1610    o exf:
1611      updated external forcing package
1612      - bug fixes carried over from ecco-branch
1613        (missing OBCS_OPTIONS.h in two routines)
1614      - enable easy to use "no forcing".
1615      - added exf I/O for atmospheric loading
1616      - added exf I/O for runoff data
1617      - transfered scaling between exf <-> MITgcm to exf namelist
1618    o Adding new verification experiment global_with_exf.
1619      This verification experiment is almost identical to the
1620      global_ocean.90x40x15 experiment, except that it uses
1621      the exf (and cal) package instead of the
1622      external_fields_load routine (cf README file).
1623    
1624    checkpoint46m_post
1625    o modified testscript to return -- when there are no lines of "%MON" output
1626    o added new flag "quasiHydrostatic" for QH mode
1627      and new routine quasihydrostaticterms()
1628    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1629      New routine: mom_u_coriolis_nh()
1630    o fixed sign of non-hydrostatic metric terms in u and v equations.
1631      Depend on correct sign of gravitySign.
1632    o added work.pc* to .cvsignore in aim directories using ifc
1633    o introduced flag for controllin non-hydrostatic metric terms
1634    o removed gravitySign from PARM04
1635    o switched to g77/ifc from pgf77 in aim experiments
1636    
1637    checkpoint46l_post
1638    o made convective adjustment work with pressure coordinates:
1639     - changed the direction of k-loop in convective_adjustment.F for the
1640       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1641     - adjusted the reference pressure k-index in convective_adjustment.F
1642     - adjusted the convection condition in convect.F (in analogy to
1643       calc_ivdc.F)
1644     - convective_adjustment no longer computes anything on the halos
1645     - removed the warnings about negative salinity from find_rho.F and
1646       find_alpha.F; instead the new routine look_for_neg_salinity, called
1647       at the beginning of find_rho, find_alpha, and find_beta, does a
1648       check of the entire slice, if CPP-option
1649       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1650    checkpoint46l_pre
1651    
1652    checkpoint46k_post
1653    o fixed the verification/global_ocean.90x40x15 experiment:
1654     - new bathymetry (the world according to A., JMC, and M.)
1655     - new initial fields and forcing fields (*.bin files)
1656     - new POLY3.COEFFS (for the next release one should switch to a full
1657       equation of state: JMD95P or MDJWF)
1658     - fixed several errors and redundancies in the data file
1659     - experiment uses looped cells
1660     - added matlab directory with diagnostic scripts for plotting of output
1661    
1662    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1663     - read AIM physics parameters from a file (data.aimphys)
1664     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1665    
1666    checkpoint46j_post
1667    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1668    o move wVel computation at the end of the time step, in S/R integr_continuity
1669    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1670    o update timeave pkg for wVel diagnostic.
1671    checkpoint46j_pre
1672    
1673    checkpoint46i_post
1674    o Clean up AIM package (and keep the results unchanged):
1675      include CPP_OPTION and use IMPLICT NONE in all routines ;
1676      declare all the variables _RL ; use _d 0 for all numerical constants.
1677      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1678    
1679    checkpoint46h_post
1680    o cleaned up the use of rhoNil and rhoConst.
1681      - rhoNil should only appear in the LINEAR equation of state, everywhere
1682        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1683        and the dynamical equations are all divided by rhoConst
1684    o introduced new parameter rhoConstFresh, a reference density of fresh
1685      water, to remove the fresh water flux's dependence on rhoNil. The default
1686      value is 999.8 kg/m^3
1687    o cleanup up external_forcing.F and external_forcing_surf.F
1688      - can now be used by both OCEANIC and OCEANICP
1689    checkpoint46h_pre
1690    
1691     Added code to convert surface volume flux (fresh water) into
1692     a mass flux when using P coordinates in the ocean (OCEANICP).
1693     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1694    
1695    checkpoint46g_post
1696    o Include a new diagnostic variable phiHydLow for the ocean model
1697      - in z-coordinates, it is the bottom pressure anomaly
1698      - in p-coordinates, it is the sea surface elevation
1699      - in both cases, these variable have global drift, reflecting the mass
1700        drift in z-coordinates and the volume drift in p-coordinates
1701      - included time averaging for phiHydLow, be aware of the drift!
1702    o depth-dependent computation of Bo_surf for pressure coordinates
1703      in the ocean (buoyancyRelation='OCEANICP')
1704      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1705        Theta, Salinity, and Pressure in the parameter list. This routine is
1706        presently contained in find_rho.F. This routine does not give the
1707        correct density for 'POLY3', which would be a z-dependent reference
1708        density.
1709    o cleaned up find_rho
1710      - removed obsolete 'eqn' from the parameter list.
1711    o added two new verification experiments: gop and goz
1712      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1713    checkpoint46g_pre
1714    
1715    checkpoint46f_post
1716    o Enable tangent linear (forward mode) gradient checks:
1717      - extended active file handling to g_... files
1718      - added TANGENT_SIMULATION to theSimulationMode
1719      - extended grdchk package accordingly
1720    o added tangent linear setup in verification/carbon/code_ftl
1721    o added adjoint setup in verification/front_relax/code_ad
1722    
1723    checkpoint46e_post
1724    o Added new equation of state -> MDJWF
1725      - EOS of McDougall et al., 2002, JAOT, submitted
1726      - caveat: the equation of state is only valid for a smaller (more
1727        realistic?) range of values than JMD95P/Z and UNESCO
1728      - added masks to the calculation of pressure in store_pressure
1729      - added more check values for density in check_eos (ini_eos.F), some of
1730        the old check values are out of the range of the MDJWF-eos, so don't
1731        expect perfect matches for those
1732    checkpoint46e_pre
1733    
1734    checkpoint46d_post
1735    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1736      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1737      case of pressure coordinates. eosType='JMD95Z' in
1738      combination with buoyancyRelation='OCEANICP' now causes an error.
1739    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1740      in find_alpha/beta.
1741    checkpoint46d_pre
1742    
1743    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1744      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1745    
1746    checkpoint46c_post
1747    o Changes necessary for ocean in p-coordinates
1748     -  Added new buoyancy relation = 'OCEANICP'
1749     -  Added new parameters = gravitySign (this used to be contained inside
1750        the factor dRdZ which I added when we first switched to R coordinates).
1751     X GM/Redi is not compatible (yet)
1752     X bottom drag and no-slip need to be debugged.
1753    checkpoint46c_pre
1754    
1755    checkpoint46b_post
1756    o Added new equation of state -> JMD95Z and JMD95P
1757      - EOS of Jackett and McDougall, 1995, JAOT
1758      - moved all EOS parameters into EOS.h
1759      - new routines ini_eos.F, store_pressure.F
1760    o Added UNESCO EOS, but not recommended because it requires
1761      in-situ temperature (see JMD95)
1762    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1763      unesco.f to be used with POLY3
1764    checkpoint46b_pre
1765    
1766    checkpoint46a_post
1767    o Added (atmospheric) pressure loading
1768      - new field in FFIELDS.h, etc...
1769      - new cpp flag ATMOSPHERIC_LOADING
1770    o Changed hFacC to _hFacC in calc_phi_hyd.F
1771    o Added SHORTWAVE_HEATING to some files for consistency
1772    checkpoint46a_pre
1773    
1774    checkpoint46
1775    further merges from release1_p5
1776    o new ctrl package
1777      - adopted from ECCO environment to enable optimization
1778      - added Eliassen Palm fluxes to controls
1779    o added Eliassen Palm flux controls to gradient check package
1780    o cost package
1781      - Compatible with new ctrl package
1782      - added Eliassen Palm cost hooks
1783      - modif's of existing cost functions
1784    o Adjoint-related bug fixes in kpp:
1785      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1786      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1787    o autodiff package
1788      - flow directives:
1789        + new for S/R do_the_model_io
1790        + enhanced for S/R checkpoint
1791        + new gmredi.flow
1792      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1793        disable adcommon.h/g_common.h by default.
1794      - fixed problem for adjoint of global_max
1795    o modified verification/carbon/
1796    o New setup for adjoint of global_ocean
1797    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1798    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1799    o incorporated hooks for sponge layer code (external_forcing.F)
1800    
1801    checkpoint45d_post
1802    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1803    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1804      (affects plume_on_slope "cg2d" output)
1805    o add new parameter deltaTfreesurf for free-surface time stepping
1806    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1807    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1808    o change phiMin in exp1 (to agree with documentation)
1809    o add new flags:
1810     - T,S forcing inside/outside Adams-Bashforth
1811     - turn off temp,salt advection and/or forcing
1812     - for each tracer, define internal flag for multiDimAdvection & A-B
1813    o monitor: change definition of KE to check conservation of Energy
1814    
1815    checkpoint45c_post
1816    o Removed f90 comments ("!")
1817    o Modified initialisations to enable exf package for MITgcm
1818      (without invoking ECCO_PACKAGE).
1819    o modifications to gradient check package (Martin Losch)
1820      - enable centered differences
1821      - modified format of standard output
1822    
1823    checkpoint45b_post
1824    o cleaned exchange calls in cg2d
1825    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1826    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1827      to configure barotropic setup (Martin Losch)
1828    o moved some initialisations within bi,bj loop in dynamics
1829      (TAF flow dependency)
1830    o in initialise_varia, moved call packages_init_variables
1831      before convective_adjustment_init
1832      (corresponding adjustment of TAF tape initialisation).
1833    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1834    
1835    checkpoint45a_post
1836    o compute Rho over the whole domain (extend iMin,jMin indices)
1837    o specific exchange for X-slice domain (case Ny=1)
1838    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1839    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1840    
1841    checkpoint44h_post = checkpoint45
1842    o Fix to restore differentiability:
1843      place at which packages_init_variables is called in
1844      initialise_varia is crucial for reverse control flow.
1845    o modifications in GMRedi to enable stable adjoint
1846      (corresponding modif's in thermodynamics, dynamics)
1847    o added missing hook for sponge layer code in external_forcing
1848    o modified test cost functions
1849    o storing in gad_advection (plus removal of write(0,*)!
1850    o missing headers TR1.h added in convective_adjustment routines
1851    o errorMessageUnit set non-equal zero in eeboot
1852      (conflict on some platforms, e.g. IBM SP3)
1853    o modified carbon verif.
1854    
1855    checkpoint44h_pre
1856    o vertical grid option: allow to put the Interface at the middle between
1857      2 cell-centers ; replace delZ in pkg/kpp by drF.
1858    o GM Advective form: Tracers are advected using the residual transport (=
1859      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1860    
1861  checkpoint44g_post  checkpoint44g_post
1862  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
1863    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F

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