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revision 1.6 by adcroft, Mon Jun 22 16:09:37 1998 UTC revision 1.480 by dimitri, Fri Apr 29 18:47:02 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o added diagnostics to pkg/kpp, including computation of mixed layer
8      depth based on a temperature/density criterion
9    o updated verification/natl_box to test the new pkg/kpp diagnostics
10    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
11    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
12    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
13      not mnc -- this mistake was found by JMC and is now corrected
14    
15    checkpoint57g_post
16    o add Adams-Bashforth 3rd Order time stepping:
17      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
18      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
19    checkpoint57g_pre
20    
21    o make lambda[Theta,Salt]ClimRelax spatially varying
22      (default remains spatially uniform constant based on tau)
23    o added new control variables
24      * init. uVel, vVel, etanN
25      * lambda[Theta,Salt]ClimRelax
26    o separate masks used for ctrl_pack/unpack 'from write_grid' output
27      (suggested by G. Forget)
28    
29    checkpoint57f_post
30    o add parameter "baseTime" = model base time = time at iteration zero
31      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
32      account for baseTime shift
33    o move Coriolis arrays from PARAMS.h to GRID.h
34    checkpoint57f_pre
35    
36    o mnc-ifying the seaice package
37    o introduced an alternative length scale calculation for use in the limiting
38      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
39    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
40    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
41      as well as grad(vort3).  Made it compatible with both approximate form
42      for the cubed sphere and full form of these gradients.  Added flag
43      useFullLeith to select between approximate and full form.  
44    o add "d0" in getcon.F to reduce differences between compilers/platforms
45      update output.txt of exp. fizhi-gridalt-hs
46    o change port_rand funtion to allow to set the seed.
47    o fix obscure MNC bug involving conversion between reals and integers
48      - it caused no problems with certain (eg. gcc, ifc) compilers but the
49        new version is now more standards-compliant
50    o adjoint-related modifications
51      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
52      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
53      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
54    
55    checkpoint57e_post
56    o Adding eddy stress controls a la Ferreira et al.
57    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
58    
59    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
60      update output.txt of exp. fizhi-gridalt-hs
61    o add more "Z" dimensions and associated coordinate vars to MNC
62    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
63    o parameter calendarDumps: when set, approximate months (30-31 days) and years
64      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
65      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
66      months and years.  Requires pkg/cal.
67    o diagnostics: add pickup functionality
68      - off by default for backwards compatibility
69      - current version only uses MDSIO -- MNC will be added
70    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
71    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
72    
73    checkpoint57d_post
74    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
75    o modify verification/ideal_2D_oce so that it tests the creation of mnc
76      output from the diagnostics package
77    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
78    o make genmake2 more portable by using ".$FS" instead of ".f" for more
79      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
80    o add coordinate variables to the MNC output from the diagnostics package
81    o change MNC-flags default value: true when useMNC=TRUE
82    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
83      the ability (off by default) to read the grid information using MNC
84    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
85    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
86    o do snap-shot diagnostics at the middle of the time-interval (instead of
87      at the end).
88    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
89      new test for AIM with thSIce + slab-ocean
90    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
91    o move state variable diagnostics to the beginning of the time step ;
92      (note: still needs some work specially for snap-shot diagnostics)
93      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
94    
95    checkpoint57c_post
96    o Change testing option (-ieee) to get closer agreement between g77 & ifort
97    o generate new output.txt files on faulks with g77 & the new -ieee option
98    checkpoint57c_pre
99    
100    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
101      update output.txt of exp. global_ocean.90x40x15
102    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
103      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
104    o add saltFlux(+File) forcing capability with periodicExternalForcing
105    o allow to use pkg diagnostics for GM-Redi & ThSIce output
106    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
107    o improvements for the MNC output from DIAGNOSTICS:
108      - correct handling of the unlimitied dimension
109      - all dims now have associated coordinate variables
110      - variables located at U, V, and Corner ("Z") points are now written
111        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
112        *all* data points are output
113    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
114    o added pkg/seaice/seaice_monitor.F
115    o mdsio_readfield.F can now read files visible only to master MPI process.
116    o pkg/seaice: some test code for ice-modified ocean stress
117    o exf_getffields interpolation defaults to bilinear for all scalar forcing
118      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
119      spurious negative numbers for precipitation and humidity.  Will cause
120      some small numerical differences for integrations using pkg/exf/exf_interp.F.
121    o pkg/ctrl/
122      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
123        May be enabled via doPackDiag
124      *  introduce z-scaling of
125         + gradient (doZscalePack) and
126         + control (doZscaleUnpack)
127    o pkg/mdsio/
128      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
129      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
130    
131    checkpoint57b_post
132    o simplify options in diagnostics_fill arguments (remove weird combinations)
133    o fix MNC coordinate variables so that they now contain per-face index
134      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
135      general, EXCH2 grids are only aligned to a "local" coordinate system
136    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
137    o Implement instantaneous output within pkg diagnostics:
138      setting a negative frequency in data.diagnostics produces
139     "snap-shot" output (as opposed to time-average if freq > 0)
140    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
141      NOTE: change ptracer diagnostics name: use 2 characters to work with
142            more than 9 tracers. Add also diagnostics of advect & diffus flux.
143    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
144      becomes the coordinate variable for the 'T' dimension
145    o add CF-style coordinate variables to MNC
146      - just a first cut:  numbers are meaningless on the cubesphere and
147        missing along the T axis but otherwise it works!
148    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
149    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
150    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
151      this is based directly on what the model compute, so that the content of
152      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
153    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
154    o clean up build options files for SunOS, in particular
155      - remove -traditional from xmakedepend
156      - change -xarch=v9 to -xarch=native for f77
157      - restore use of make (not gmake)
158      - add CC=gcc if using g77
159    o changes per discussion of AM, JMC, & EH3 today:
160      - move redundant "grid" variables out of "state" -- in preparation of
161        creating proper CF-style coordinate variables and in recognition
162        that any/all grid variables can be easily copied (eg. w/NCO) from
163        the grid files into any of the other NetCDF files
164      - *always* output grid variables with MDSIO (this will eventually be
165        changed)
166      - output MNC grid file if useMNC is true
167    o every instance of _END_MASTER() has been found and replaced with
168      _END_MASTER( myThid ) in order to satisfy certain picky Sun
169      preprocessors
170    o re-arrange diagnostics pkg initialisation:
171     - allow each package to extend the available diagnostics list
172     - add some checking and fix small problems (multi-threaded, ...)
173     - new S/R diagnostics_fill (replace fill_diagnostics):
174       look through the short list of active diag. (instead of the long list)
175       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
176    
177    checkpoint57a_post
178    o this set of changes restores TAMC compatibility
179      tested for global_ocean.90x40x15 adjoint on trough
180      (what a pain)
181    
182    checkpoint57a_pre
183    o some modifs in tools/build_options for sunos
184    o call ctrl_pack for ctrl at end for optimcycle=0
185    
186    checkpoint57
187    o add horizontal bi-harmonic viscosity for vertical velocity
188      - new parameter viscA4W (defaults to viscA4)
189      - affects only non-hydrostatic code
190      - to be done: no-slip lateral boundary conditions
191    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
192    o implement Implicit Vertical advection for pTracers
193    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
194      (implemented also for implicit vertical diffusion & advection)
195    o OBCS: extend application of tracer open boundary conditions
196      to a strip beyond the boundary of width Olx/Oly
197    o add call monitor to TAF set of required calls (flow directives)
198      and include in natl_box_adjoint
199    o untangle a few ifdefs related to cost, ctrl, autodiff
200      untangel a few ALLOW_ECCO_OPTIMIZATION
201    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
202      (theta2, salt2 in ecco_cost_weights)
203    
204    checkpoint56c_post
205    o OBCS as control variables
206      - update ctrl_ad_diff.list, obcs_ad_diff.list
207      - remove balance of obcs controls from default
208      - fix index bug nobcs in ctrl_init
209      - fix dummy fields filen in ctrl_pack
210      - add dummy weights for obcs
211    o lsopt: comment out fort.94 output
212    o optim:
213      - remove unnecessary header files
214      - adjusted namelists
215      - add xerbla.F to Makefile
216    o exf:
217      - multiple modifications of exf_check_range
218      - unit change in exf_init_runoff from [m/year] to [m/s]
219    o mdsio:
220      - i/o-vector change debugLevel from debLevA to debLevB
221    
222    checkpoint56b_post
223    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
224      is called from DO_THE_MODEL_IO
225      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
226      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
227      - clean up PTRACERS_WRITE_TIMEAVE a little
228    o add another verification experiment that tests both the cfc-pkg and
229      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
230      reactive tendencies treated inline with regular timestepping
231    o testreport previously did a lousy job of comparing small numbers, so
232      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
233      implemented in the little c-progam tmp_cmpnum.c which is embedded in
234      testreport.
235    o ptracers_monitor: bug fix for MPI
236    
237    checkpoint56a_post
238    o GCHEM: finish reorganizating the package
239      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
240        (introduces another 3D-array for each passive tracer, but only if
241        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
242        gchemTendency is not needed because the timestep is done separately)
243      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
244      - GCHEM is now---more or less cleanly---separate from PTRACERS
245      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
246        so clear to me how that should be done in a general way.
247    o CFC: improve formatting of output in CFC_ATMOS
248    o PTRACERS:
249      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
250        that ALL experiments with ptracers enable can be checked. This makes
251        GCHEM_MONITOR obsolete.
252      - include a runtime parameter PTRACERS_monitorFreq that defaults to
253        monitorFreq
254      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
255    o add PTRACERS (PTR0[1-5]) to testreport output
256    o exf_check_range:
257      * default changed to .TRUE.
258      * will check values for niter0 if debLevA, every timestep if debLevB
259      * STOP in exf_check_range if 'out of range'
260      * range chosen generous to allow for potential extema
261      TBD: a version with stricter range
262           permitted range would be runtime parameters
263    o GMredi:
264      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
265      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
266      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
267    o GCHEM:
268      - move call to GCHEM_FORCING_SEP, so that it is now called before
269        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
270      - introduced a useGCHEM runtime flag and applied it everywhere.
271      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
272        this flag is now only visible within GCHEM-pkg routines.
273      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
274        be replaced by a 3D array that is computed before thermodynamics; for
275        this, the tracer ID iTracer had to be included into the parameter list
276        of ptracers_forcing
277      - set up forward_step to call gchem_forcing, that will replace
278        gchem_forcing_int in ptracers_forcing
279      - cleaning up
280    o small cleaning of exch2: remove files that are also in eesupp/src
281    
282    checkpoint56
283    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
284    o mnc: cleanup "full" files--fixes out-of-memory problem
285    o ECCO-GODAE
286      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
287      * fully merged and updated from SIO code
288        windstress sign change affects
289        - exf_inscal_[u/v]stress
290        - sign of xx_tau[u/v] adjustments
291        - signs in cost_scat
292      * ctrl_get_gen: avoid update of tau[u/v] for first few days
293      * natl_box_adjoint updated and compressed
294      * 2-level checkpoint switch added
295        (tested in EXP. 1 of natl_box_adjoint)
296      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
297    o SVD
298      * first complete, non-hacked version for SVD calculations
299      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
300        performed via direct access files admtlm_vector.it????
301        (via ctrl_[un]pack)
302      * optimcycle is used for ARPACK iteration counter
303        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
304      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
305        and add linear transforms where necessary
306      * controls are initial/final SST, SSS (can be extended; need to check
307        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
308    o mdsio: filename info to both stderr, stdout
309    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
310      from sign change
311    
312    checkpoint55j_post
313    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
314      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
315    o add consistent build directories and .cvsignore files to verification
316    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
317    o make all subroutines 30 or less characters in length for certain older
318      compilers to work (a thorough search only turns up two routines in
319      pkg/ptracers)
320    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
321      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
322    
323    checkpoint55i_post
324    o change arrays for total vertical diffusivity (2.D if explicit,
325      3.D if implicit) ; each ptracer uses its own background value.
326    o added mnc/NetCDF output capability to ocn_compon_interf
327      - added bits to verification/cpl_aim+ocn so that it can run on
328        ITRDA and other clusters without the mpirun "-wd" option
329    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
330      configuration
331    o give MNC the ability to create additional files rather than
332      exceeding a specified file size limit "MNC_MAX_FILESIZE"
333      - the default is just less than 2GB which is a practical limit
334        on many systems
335    o Compute the non-local term using either KPP vertical diffusivity (=default)
336       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
337    
338    checkpoint55h_post
339    o add verification test "vermix"
340    o remove all the *_ioinc flags and replace with the single global
341      outputTypesInclusive flag
342    o allow to set a vertical profile of vertical diffusivity for T & S
343    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
344    o useMNC moved from data.mnc to data.pkg
345    
346    checkpoint55g_post
347    o Renaming carbon AD experiments to comply with testreport conventions
348    o Updating adjoint of Held-Suarez hs94.1x64x5
349    o Fixing directives for non-ECCO forward_step, after ECCO directives
350      have been fixed to avoid recomp. of do_oceanic_phys
351      Works well for global_ocean.90x40x15,
352      but recomp. issue remains for carbon
353    o Updating adjoint output for natl_box_adjoint after
354      pkg/ecco has been modified (see taga c55d_post)
355    
356    checkpoint55f_post
357    o rename to timeave_init_fixed
358    
359    checkpoint55e_post
360    o some delicate re-shuffle of store directives to avoid one
361      extra call of do_oceanic_physics
362      affects ecco_the_main_loop.F, do_oceanic_physics.F
363      checkpoint_lev1_directives.h
364    o NB: this may break global_ocean adjoint temporarily,
365      but it is clear how to fix it. Will do later, need this now.
366    
367    checkpoint55d_post
368    o ECCO specific cost function terms (up-to-date with 1x1 runs)
369    o ecco_cost_weights is modified to 1x1 runs
370    o modifs to allow observations to be read in as
371      single file or yearly files
372    o enable to read exf forcing fields as either
373      single file or yearly files (flag useExfYearlyFields)
374    checkpoint55d_pre
375    
376    o switch between 2-level and 3-level checkpointing
377    o add ability of MNC to write local and "partial" (eg. 2D slices where
378      the full 3D field is never actually stored) arrays to NetCDF files
379      with the correct (that is, the complete multi-dimensional) set of
380      array indicies
381      - used in mom_vecinv() to write the diagFreq output
382      - tested (demonstrated) in verification/aim.5l_cs
383    o further mnc-ification
384      - add verification/lab_sea to the list with mnc setups
385      - fix undefined mnc v-names in cd_code
386      - add kpp to mnc output (both snapshot and timeave)
387    o non-hydrostatic code
388      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
389        in calc_gw.F
390      - defaults to viscAh
391      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
392        friction or Leith) in non-hydrostatic mode, as long as there is
393        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
394    o pkg/cost
395      extend simple cost functions to treat time mean quantities
396      (T,U,V) via cost_accumulate_state from cost_tile
397    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
398        be 2 times larger than the minimum size the advection scheme requires.
399        now get a perfect conservation of salt in advect_cs test-exp (updated)
400    o GGL90 (Gaspar's TKE mixed layer)
401      - add horizontal diffusion of TKE, requires exchanges in
402        do_fields_blocking_exchanges, horizontal diffusivity is zero by
403        default. In OPA there is no horizontal diffusion of TKE but the
404        mixing coefficients are computed from a horizontal average of TKE of
405        6 points or so. I think that diffusion has a little more physical
406        justification.
407      - clean up ggl90_calc in the hope of reducing memory usage (this hope
408        was in vain)
409      - mask tke-variable in ggl90_init
410    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
411    o fix biharmonic diffusion on CS-grid.
412    o more obcs stuff
413      - added obcs_external_fields_load as an alternative to the EXF-pkg option
414        for reading boundary values. This routine is called from
415        obcs_prescribe_read
416      - updated obcs_check
417      - changed sponge layer relaxation parameter units for days to seconds
418      - turned off sponge layer by default
419      - changed argument list of OBCS_CALC to myTime+deltaTclock
420      - fixed about 35 bugs in obcs_external_fields_load
421    
422    checkpoint55c_post
423    o obcs stuff
424      - new runtime flags useOBCSprescribe, useOBCSbalance
425      - re-arranged obcs_calc
426      - moved exf_getobcs to obcs_prescibe_read
427        obcs_prescibe_read is called after ORLANSKI stuff
428        and independent of it (executable can contain all).
429      - updated obcs_check
430      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
431        These may be necessary only if tangential velocities are
432        prescribed at OB, not sure, needs testing.
433    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
434      which simplifies the calls and passes the ifc check-bounds test
435    
436    checkpoint55b_post
437    o add a 2D scalar, Z location, exchange_2 routine.
438    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
439      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
440      affects advect_cs results (for the wrong reason): update output.txt
441    o use a more standard discretization for biharmonic viscosity ;
442     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
443      affects results of dome set-up: update output.txt
444    o fix gad_advection.F (CubedSphere part), back to version 1.23
445    o fix bug in mom_vi_del2uv.F (CubedSphere part).
446    
447    checkpoint55a_post
448    o merged code to
449      * prescribe/read time-dependent open boundaries
450        (works in conjunction with exf, cal)
451      * sponge layer code for open boundaries
452      * each boundary N/S/E/W now has its own CPP option
453        (healthy for the adjoint)
454    
455    checkpoint55
456    o up-to-date adjoint of previous breaks
457      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
458      - global_ocean_ebm: adjoint still needs fix (TLM ok)
459      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
460      - carbon: * remove tr1-related adjoint verification
461                * add ptracer as control variable
462    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
463      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
464    
465    checkpoint54f_post
466    o in verification/carbin/ remove experiment related to
467      ALLOW_PASSIVE_TRACER (array tr1 etc)
468      code_ad/ input_ad/ results_ad
469    
470    o add two new packages
471      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
472        + subject to optimization (memory)
473      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
474        + subject to reordering (many GOTOs in the original code)
475        + so far opps is called for every (i,j) point, and then operates in
476          the vertical; one may want to reorder the scheme in order operate in
477          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
478          fields)
479    o overhaul of IO so that we now have flags for MDSIO and/or MNC
480      - all verification tests compile and run with linux_ia32_g77
481      - defaults are compatible with current input files--nothing
482        should change if you were not previously using MNC
483      - MNC output has been added in numerous places (eg. timeave)
484        but there are still a few writes not yet do-able with MNC
485        (this is in progress)
486      - flags now allow for either/or/both use of MDSIO and MNC and
487        documentation will soon follow
488      - numerous small formatting cleanups for ProTeX
489    o add version info (via BUILD_INFO.h) to MNC and stdout
490    
491    checkpoint54e_post
492    o add two new packages
493      - pp81 (Packanowski and Philander, 1981), Richardson number and
494        stratification dependent mixing
495      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
496      - these scheme operate in a similar manner as KPP (without ghat, of
497        course), however there is only one diffusivity that is used for both
498        temperature and salinity (and passive tracers)ç
499    o add offline package
500    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
501      provided by Stephanie Dutkiewicz
502    o genmake2: add ability to search for C compilers and cleanup test output
503      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
504    
505    checkpoint54d_post
506    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
507    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
508      leading to additional shift by 5 days each year of integration
509       (i.e. leading to considerable offset over the years)
510    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
511    o start with no AB and no initial filtering (staggerTimeStep):
512      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
513    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
514      (external loading & cpl import/export stay in forward_step.F)
515    o update coupling interface to work with new staggerTimeStep
516    o change MDSIO ptracers_pickup.
517    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
518    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
519    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
520    
521    checkpoint54c_post
522    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
523      this affects (truncation error) output.txt of test-exp:
524       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
525    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
526    o change Qnet to always be the net heat flux, (+upward).
527      affects (truncation error) output of natl_box exp.: updated
528    o define the max number of passive tracers in PTRACERS_SIZE.h
529    o start to test mnc routinely in exp0
530    o add sea-ice loading (sIceLoad) as a new forcing field.
531    
532    checkpoint54b_post
533    o add testreport "-j JOBS" option for parallel builds (tested and pretty
534       impressive on Altix and Opteron systems)
535    o diagnostics can now write NetCDF files through the mnc package
536    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
537    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
538    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
539      affects (truncation error) output of lab_sea & natl_box exp.: updated
540    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
541    
542    checkpoint54a_post
543    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
544    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
545    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
546    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
547      + internal_wave (shift in writing cg2d_ini_res)
548    checkpoint54a_pre
549    
550    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
551      - modified verification/lab_sea and natl_box_adjoint accordingly
552    
553    checkpoint54
554    checkpoint53g_post
555    o prepare splitting of thermodynamics: store convect.counter in common block
556    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
557      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
558    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
559    o new parameter "nShapS": allow to treat differently S from T (nShapT)
560    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
561    o restore adjointability
562    
563    checkpoint53f_post
564    o modifications that affect AIM experiment results (update output.txt):
565      - no advection of S at top interface Nr (pkg/generic_advdiff)
566      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
567    o AIM pkg:
568      - include stability function into surf.Flux derivative relative to Tsurf
569      - calculate clear-sky radiation & surface temp. change (for diagnostics)
570    
571    checkpoint53e_post
572    o merged cylindrical coord configuration
573    o added rotating_tank experiment
574    checkpoint53e_pre
575    
576    checkpoint53d_post
577    o faulks upgraded: re-generate output.txt that have changed:
578       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
579    o Added Bryan and Lewis, 1979, vertical diffusivity profile
580    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
581    o added Sadourny discretization of Coriolis
582      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
583      - re-enabled use of omega3 (useAbsVorticity)
584    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
585      vector-invariant equations
586      - note: does *NOT* yet use same variable visc. for no-slip BC's.
587    o recoded the lateral boundary conditions for non-hydrostatic w, this time
588      hopefully without new bugs
589      - still to do: biharmonic friction for non-hydrostatic w
590    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
591    o regenerated output for global_ocean_ebm (using -ieee)
592    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
593      of mom_common/
594      - simple re-arrangement of instructions within computing loop
595    checkpoint53d_pre
596    
597    checkpoint53c_post
598    o new version of coupler for AIM+thSIce and Ocean models
599     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
600     - land: change Evaporation of snow
601     - aim with thSIce: fix bug in snow-precip.
602    o changes to calc_gw.F
603     - bug fix for w^2 term near the bottom boundary
604     - (hopefully) improve the lateral slip boundary condtions for use with
605        partial/looped cells
606      - because the bug fix changes two verification experiments anyway (exp5
607        and plume on slope), change the lateral boundary condition from half slip
608        to the value of no_slip_sides
609    o ebm package wasnt quite up to the parallel task. Fixed that.
610    o Adjoint of EBM package + verification
611      * TLM OK
612      * ADM not sufficient accuracy yet (needs further testing)
613    
614    checkpoint53b_post
615    o Commiting new energy balance model to repository
616      * package is pkg/ebm
617      * verif. is verification/global_ocean_ebm
618      * references are in ebm_driver.F
619    C      * X. Wang, P. Stone and J. Marotzke, 1999:
620    C        Global thermohaline circulation. Part I:
621    C        Sensitivity to atmospheric moisture transport.
622    C        J. Climate 12(1), 71-82
623    C      * X. Wang, P. Stone and J. Marotzke, 1999:
624    C        Global thermohaline circulation. Part II:
625    C        Sensitivity with interactive transport.
626    C        J. Climate 12(1), 83-91
627    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
628    C        Destabilization of the thermohaline circulation
629    C        by atmospheric eddy transports.
630    C        J. Climate 7(12), 1870-1882
631    o Will need long integration testing.
632    checkpoint53b_pre
633    
634    o created pkg/mom_common in preparation for variable viscosity code
635    o renamed and split ini_mnc_io
636    o pkg/land: only liquid water can diffuse or run-off
637    o AIM using land: soil wetness availability account for snow
638    o added printMapIncludesZeros to EEPARMS namelist
639    
640    checkpoint53a_post
641    o restore TAMC compatiility for exf_constants.h
642      (no usage of _d in .h)
643    o Additional storing in KPP in an attempt to fix
644      TAMC problem with adjoint of KPP code.
645      (no success...)
646      Identical code works fine with TAF.
647    o Fixed verification/natl_box_adjoint experiments.
648      Initial conditions for Experiments 4 and 5 are now
649      set to "SEAICE_initialHEFF=0", which is more reasonable,
650      and hence gives results closer to that of Experiment 2.
651      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
652    
653    checkpoint53
654    o stable checkpoint with up to date adjoint
655      TLM tests only run for 1st grdchk at the moment. Its unclear if
656      this is a code problem or a problem with resetting code for g_
657      variables that is being autogenerated wrong.
658      Otherwise:
659       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
660       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
661         are both still in chaos following their security messes.
662    
663    checkpoint52n_post
664    o various build (mostly genmake2) changes including:
665      - ability to build/run more easily within Cygwin and MacOS X
666      - more complicated Makefiles with a stronger dependence on Gnu Make
667    o pkg/seaice modifications
668      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
669        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
670        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
671      - changed proxy for geostrophic velocity and updated
672        verification/lab_sea/results/* accordingly
673      - removed ADI dynamic solver from pkg/seaice
674      - replaced all occurrences of 1/CSTICE or 1/CSUICE
675        they caused a segmentation fault under certain circumstances
676      - removed unused field WATR
677    o bug fix in exf-package:
678      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
679         now reflect that.
680    o small fixes in the cal-package:
681      - set reference date to first of January for the 'model'-calendar
682      - failing of cal_CheckDate in cal_FullDate now actually results in a
683        warning
684    o small modifications in exf-package to increase flexibility:
685      - change climtempfreeze from a constant to a runtime parameter that
686        is specified in data.exf_clim (default = -1.9)
687      - introduce runtime parameter windstressmax (default = 2.0) that is
688        specified in data.exf
689    o fix in pkg/thsice:
690      - update Evap (Tsf changes) to be consistent with Latent heat flux
691      - maintain snow precipitation unchanged (even if Tsf >=0).
692     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
693    
694    checkpoint52m_post
695    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
696      this does not change any of the results, because myIter=0 in swfrac always
697      lead to jwtype=2 (the default anyway), but the call makes little sense
698      as a default
699    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
700    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
701      atmospheric model (AIM) to use it ; add a "slab ocean" component.
702    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
703    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
704    o extending useSingleCpuIO option to work with new exch2 I/O format
705      - old-style, missing-tile I/O is still accessible by defining CPP
706        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
707    o monitor package can write to NetCDF files and/or STDOUT
708    o fix re-definition bug in MNC_GRID_INIT_ALL()
709    o doc/api_reference added
710      - a framework for building an API Reference Manual using all
711        the "protex" comments embedded in the code
712      - see pkg/generic_advdiff, pkg/mnc for examples
713    o MNC:
714      - make myThid the last argument for all subroutines
715      - new default for the grid files: NO halos
716      - add useMNC and other run-time flags
717      - separate per-file-group handling of the unlimited dimension
718      - early initialization of MNC w/ flags read at the eeboot stage
719        and lookup tables set in initialize_fixed
720      - write all MNC output to a freshly-created directory
721    o thermodynamics sea-ice (thsice) is now tested with testreport.
722    o test exp. advect_cs: use the standard cs32 grid ; update output.
723    o Added functionality to grdchk:
724      pick global i,j,k position (or nearest wet) where to perform check.
725    
726    checkpoint52l_post
727    o new land formulation:
728      a) use ground enthalpy as prognostic variable to ensure exact
729         energy conservation.
730      b) account for water temperature and for latent heat of freezing
731         in all processes (rain, run-off, ground storage)
732      c) compute surface and ground temperature implicitly.
733    o aim_v23 modification for new land model:
734      a) Treat separately land / ocean / sea-ice surface fluxes
735         to allow implicit computation of land & sea-ice surface temp.
736      b) add snow precipitation.
737    checkpoint52l_pre
738    
739    o fix problem (when 1 tile is empty) in min/max monitor.
740    o fix bug in timeAve (u,vZetatave in common block)
741    o no restoring terms under ice for pkg/seaice
742    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
743    o bug fix for pkg/seaice pickups
744    o change MNC call locations and add coordinate attributes
745    o mask vorticity at the corner ; affects global_ocean.cs output
746    o fix ini_curvilinear_grid ; test CS experiments with mpi
747    o aim.5l_cs: modify sea-ice fraction input file ; update output
748    o exf: Adding simple range check routine for exf fields after read
749    
750    checkpoint52k_post
751    o removed top-level directory "diags"
752      - we migrated these functions to pkg/timeave a long time ago
753    o fixed bug introduced in pkg/monitor
754    o accuracy ctrlprec = 32 insuffient for gradient checks using
755      averaged fields (I/O via cost_averages)
756      -> use ctrl.h in active_file*.F to control I/O precision.
757    o paramter list of CALL ADTHE_MAIN_LOOP
758    o added initial do_the_model_io to ecco
759    o set all ...Freq to zero after cost_final
760      taveFreq, dumpFreq, pChkptFreq
761    o MAIN and ECCO differentiability restored
762    
763    checkpoint52j_post
764    o fix nchklev in tamc.h for global_ocean...
765    o Bringing flow and store directives up-to-date
766    o Really weird thing!
767      call do_the_model_io from the_main_loop with parameters
768      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
769      TAF places a faulty re-call of initialise_varia
770      after cost_final call which should not be there!
771    checkpoint52j_pre
772    
773    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
774      error messages
775    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
776    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
777      debug output
778    o modfied mdsio_writefield.F to handle non-global files under exch2
779    o update AIM Cubed-Sphere exp (aim.5l_cs):
780      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
781    o update AIM Equatorial Channel exp:
782      use standard aim_v23 pkg and change the SST fields to be more realistic.
783    o globalFile now works with exch2
784    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
785      mon_vort3.F to make exch2 friendly with >1 tile per cube face
786    o limit timeave output for hi-res integrations
787    
788    checkpoint52i_post
789    o removed CPP_EEOPTIONS.h from verification/*/code
790    o updated the tiling for global_ocean_pressure
791    checkpoint52i_pre
792    
793    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
794      the old pkg/aim).
795    
796    checkpoint52h_pre
797    o shortened offending lines in exch2_send_rx?.template
798    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
799    o genmake2: add build & execute test for NetCDF code
800    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
801      old grid files, moved CPP_EEMACROS.h to pkg/exch2
802    o added useSingleCPUIO flag to monitor.F and mon_out.F
803    o added temporary hack for sea-ice dynamics on the cube:
804      metric terms are ignored and it is assumed that
805      there is no sea-ice on cube faces 1, 2, 4, and 5.
806    
807    checkpoint52f_post
808    o added exch2 cube routines to pkg/exch2
809    o modified hs94.cs-32x32x5 to use it
810    o added new grid files to hs94.cs-32x32x5
811    checkpoint52f_pre
812    
813    checkpoint52e_post
814    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
815      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
816    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
817      to work with implicit vertical advection and AB ;
818    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
819    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
820     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
821    checkpoint52e_pre
822    
823    o fix bug in impldiff when Nr=1 or Nr=2.
824    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
825    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
826    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
827      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
828    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
829    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
830    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
831    
832    checkpoint52d_post
833    o re-tiled many expts to allow comparison in multi-processor mode
834      - updated output accordingly
835      - changed hs94.128x64x5 to use intial T from file rather than use the
836        random number generator
837    o add infrastructure in model routines for fizhi and gridalt packages
838    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
839    o changes to permit hi-res, cubed-sphere, configuration
840      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
841      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
842      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
843        of surface winds for the cube
844      (A verification experiment, based on global_ocean.cs32x15, but with
845       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
846       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
847       complete with example surface forcing files and matlab scripts to look
848       at the output and compare it with that of global_ocean.cs32x15.)
849    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
850       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
851       to conform to the common rule.
852    o check-in the first version of the coupler + interfaces for multi-components
853       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
854       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
855       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
856       - ocean and atmos. share the same horizontal grid (no interpolation).
857       - exchanges between component and coupler is done in forward_step
858    o new verification experiment, cpl_aim+ocn:
859       coupled ocean - AIM atmosphere on cs32 grid.
860    
861    checkpoint52d_pre
862    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
863    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
864    
865    checkpoint52c_post
866    o Fixing OPTIONS files for use of exf:
867      - ALLOW_ECCO not needed
868      - ECCO_CPPOPTIONS.h should not be included from
869        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
870        as has been the case in the past
871      - All cal/exf related options are currently set in
872        single header file. Should remain so until we
873        agree on a consistent new policy.
874    o Removed all CPP options for cal package.
875      cal has no more CPP options.
876    o modified STOREs in GAD_ADVECTION
877    o corrected key comp. for passkey
878    
879    checkpoint52b_post
880    o new version: "thsice" of thermodynamic sea-ice pkg:
881     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
882     - modify fluxes but do not change theta directly;
883     - light cleaning of bulk_force pkg (still needed with thsice).
884     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
885       + output_thsice.txt to test thsice & bulk_force pkgs.
886    o put back grid & coriolis monitor output.
887    checkpoint52b_pre
888    
889    o call "do_the_model_io" at the beginning (=> dump initial state)
890    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
891    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
892      (need info on NUMBER_OF_PTRACERS)
893    o missing PTRACERS headers in some routines
894    o default tamc.h in pkg/autodiff supposed to crash
895      to ensure proper customization
896    
897    checkpoint52a_post
898    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
899      - moved surfaceTendencyTice from pkg/seaice to main code
900      - subroutine FREEZE_SURFACE now limits only surface temperature
901        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
902        => new output.txt for global_ocean.cs32x15 & global_with_exf
903      - keep the old version of FREEZE for backward compatibility;
904        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
905      - corresponding modifs for TAF directives
906    o added surface flux output variables to TIMEAVE_STATVARS
907    o time-averaged output for pkg/ptracers
908    o fix problem with ECCO-related divided adjoint
909      snapshot file was missing some ad-variables,
910      but no warning issued by TAF
911    
912    checkpoint52a_pre
913    o some bug fixes for #undef REAL4_IS_SLOW
914    
915    checkpoint52 = ecco_c52_e35
916    o after testing adjoints of checkpoint51u_post
917    
918    checkpoint51u_post
919    o this is the post-merge tag of the ecco-branch
920      (needs another clean checkout and re-testing)
921    o various natl_box_adjoint configs and results
922      but no input fields
923    o obcs adjoint not yet merged!
924    o adding ECCO global 1x1 and 2x2 degree configs
925    o updated/extended some store directives for seaice
926    o pkg/ecco now containes ecco-specific part of cost function
927    o top level routines the_main_loop, forward_step
928      supersede those in model/src/
929      previous input data.cost now in data.ecco
930      (new namelist ecco_cost_nml)
931    o in ctrl/ cleaned some cross-dependencies and updated CPP options
932    
933    checkpoint51t_post
934    o this is the pre-merge tag of the ecco-branch
935    
936    checkpoint51s_post
937    o cleanup: removed various obsolete #define-s
938    o pkg/grdchk
939      - renamed 'ph-grd 3' to 'grad-res'
940      - merged from ecco-branch
941        (remaining bug fixes for obcs gradient checks)
942      - additional high-precision output for testreport
943        (grep for 'precision_grdchk_result')
944    
945    checkpoint51r_post
946    o cleaned up or removed CPP_OPTIONS.h files
947    o updated results for some of the tests to reflect the new
948      optfiles (-ieee: -O0 instead of -O3)
949    
950    checkpoint51q_post
951    o cd_code:
952      - moved cd_scheme.F -> cd_code_scheme.F
953      - separate read_checkpoint from cd_code_ini_vars.F
954      - separated cd_code part from write_checkpoint
955      - updated AD_SOURCE, generated .flow
956      - added CD_CODE_VARS.h to the_main_loop
957      - Moving cd_code specific store dir.s to pkg/cd_code
958    o ctrl package totally restructured
959      - pack/unpack now optional and decoupled from
960        xx_/adxx_ I/O
961      - ctrl_pack/unpack cleaned
962        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
963      - confined inclusion of AD_CONFIG.h to where necessary.
964    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
965    
966    checkpoint51p_post
967    o create initial cd_code package
968      - WARNING: the initialization of fields within packages
969        is broken because INI_FIELDS (where READ_CHECKPOINT is
970        called) is called *before* PACKAGES_INIT_VARIABLES.
971        This seems to be backwards since
972        1) its important to initially zero the entire field including
973           the "halo" region
974        2) zeroing needs to be done *before* reading pickup info
975           and the pickup call might or might not happen in any
976           particular run
977      - this needs an overhaul for R2
978    o cleanup verification/*/code/GMREDI_OPTIONS.h
979    o cleanup testreport
980    
981    checkpoint51o_post
982    o bringing AD-related verif's up to date with genmake2
983      - carbon/
984      - global_ocean.90x40x15/
985      - hs.94.1x64x5/
986      - (front_relax/ )
987    o (more) consistent directory structure for AD-related verif.'s
988    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
989    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
990    o bug fix in find_alpha.F for MDJWF:
991      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
992        change rho -> rho-rhoConst
993      - replace call find_rho to find_rhonum
994    o initialisation of rFlx extended to full array (required by TAF)
995      and shifted to thermodynamics
996    o removed PTRACERS.h in ptracers routine
997    o added surfacetendencyPtr to S/R parameter list pracers_forcing
998    o Correcting initialisations for fVerU, fVerV.
999    o helping TAF to recognize dependency on kUp for
1000      fVerU, fVerV
1001    o Replacing delZ by delR in pkg/ctrl/
1002    checkpoint51o_pre
1003    
1004    o undid all of cp51 pending some cleanups and discussion
1005    o added the [#include "AD_CONFIG.h"] statement to all files that need
1006       it for adjoint/tl #defines
1007     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1008     o removed tools/genmake since it no longer works
1009    
1010    checkpoint51n_post
1011    o modifications to make FREEZE flux visible to pkg/kpp
1012      - moved surfaceTendencyTice from pkg/seaice to main code
1013      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1014      - subroutine FREEZE now limits only surface temperature
1015        (this means new output.txt for global_ocean.90x40x15,
1016         global_ocean.cs32x15, and global_with_exf)
1017    o added surface flux output variables to TIMEAVE_STATVARS
1018    
1019    checkpoint51n_pre
1020    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1021    o added [#include "AD_CONFIG.h"] to all files that use the following
1022      defines:
1023      - ALLOW_ADJOINT_RUN
1024      - ALLOW_TANGENTLINEAR_RUN
1025      - ALLOW_ECCO_OPTIMIZATION
1026    
1027    checkpoint51m_post
1028    o incorporating changes to get TAMC/TAF working in genmake2
1029      - added new TAMC/TAF targets to the Makefile
1030      - various cleanups related to package handling
1031      - these changes should have no impact on the forward model
1032    
1033    checkpoint51l_post
1034    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1035     - faster algorithm for cal_addtime.F
1036     - higher precision arithmetic, where needed
1037     - pkg/exf *startdate variables changed from calendar date to
1038       model integration time
1039    
1040    checkpoint51l_pre
1041    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1042    o enable to apply restoring on S & T only in a latitude band.
1043    o update output (external_forcing_surf modif. change truncation errors)
1044       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1045    
1046    checkpoint51k_post
1047    o change default to: useNHMTerms=.FALSE.
1048     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1049       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1050     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1051        exp1, ideal_2D_oce
1052     - change data file of oceanic exp (leave the results unchanged for now)
1053       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1054    o set gravitySign automatically according to the vertical coordinate used
1055      (and change sign: back to "logical" value: +1 when R increases downward)
1056    o added an include barrier to the default CPP_OPTIONS.h and
1057      removed the #include "PACKAGES_CONFIG.h" from it
1058    o fix a bug in mom_fluxform (from chk51j_post)
1059    
1060    checkpoint51j_post
1061    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1062    o adjusted some flow directives (dynamics, thermodynamics)
1063    o added cubed-sphere case to test cost function
1064    o heckpoint_lev?_directives.h now include
1065      pkg-specific directives, whenever those are enabled.
1066    o Moving pkg-specific flow directives to corresponding pkg
1067      Moving pkg-specific differentiation list to corresponding pkg
1068      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1069      ---> conventions are
1070           - pkg_ad.flow
1071           - pkg_ad_diff.list
1072           - pkg_ad_check_lev?_dir.h
1073    
1074    checkpoint51i_post
1075    o merge of the branch-genmake2
1076      - knowingly breaks the older genmake
1077      - automatic generation of all ALLOW_${PKG_NAME} defines
1078      - new testreport supersedes older testscript
1079    o large number of package inclusion and header cleanups
1080    checkpoint51i_pre
1081    
1082    o new output for adjoin of global ocean vector invariant
1083    o fix for checkpoint of thermodynamic seaice and bulk_force
1084    o Steph gchem various cleanups
1085    
1086    checkpoint 51h_pre
1087    o fixed some single quotes
1088    o modify gchem pkg to be more versatile
1089    o modifications to clean up dic pkg
1090    o add pkg/cfc
1091    
1092    checkpoint51g_post
1093    o provide links for ARPACK and ADM*TLM
1094    o start removing verification/vero/
1095    o update AD-related stuff
1096      (in particular some IF-statements in model/src/ routines)
1097    o adding to verification/global_ocean.90x40x15/ adjoint of
1098      vector invariant setup
1099    
1100    checkpoint51f_post
1101    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1102    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1103      of tracer Green's fucntions for ocean inversion project.
1104    
1105    checkpoint51f_pre
1106    o Added on-the-fly spatial interpolation capability
1107        "USE_EXF_INTERPOLATION" to pkg/exf.
1108      - This is a temporary Cartesian-grid hack until
1109        the super-duper ESMF coupler becomes available.
1110      - See verification/global_with_exf/README for usage example.
1111      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1112        flags and modified pkg/seaice accordingly.
1113    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1114        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1115        non-local transport term.
1116    
1117    checkpoint51e_post
1118    o pkg/mom_vecinv:
1119      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1120      - add time-ave diagnostic of vorticity advection.
1121    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1122    o atmospheric geopotential: - include water vapor effect;
1123                                - use p^kappa in p* scaling.
1124    o land pkg: read initial state from files.
1125    o AIM : add stratospheric drag in the upper level
1126    
1127    checkpoint51d_post
1128    o change function ILNBLNK (=> last non-blank char.) to return zero
1129      (instead of the string length) when the string. char is empty
1130    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1131    o modif's to restore TAMC compatibility
1132      - avoid "_d" constructs in PARAMETER declarations
1133      - avoid interrupting lines by comment lines
1134    o Use cluster local disks for purely local I/O
1135      vs. globally visible disks needed for ctrl stuff
1136      (merged from ecco-branch)
1137      - new active_file_loc... and mdsio_..._loc routines
1138      - affected packages: autodiff, ctrl, grdchk, mdsio
1139    
1140    checkpoint51c_post
1141    o introducing integer flag debugLevel
1142      - debLevZero: suppress all output
1143      - debLevA: standard
1144      - debLevB: equivalent to current debugMode=.TRUE.
1145    o introducing pathname variable mdsioLocalDir for mdsio
1146      that can be specified at runtime
1147      (relevant for cluster I/O to local disk)
1148    `
1149    >>>checkpoint51b_post
1150    adjoint of ptracers
1151    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1152    o extended state in checkpoint_lev?, etc.
1153    o alternative ctrl/cost with tr1 or ptracer
1154    o new comlev1_bibj_ptracers
1155    o new ptracers.flow
1156    o made ptracers_forcing same as external_forcing_s
1157    o added verification for adjoint with ptracers
1158      - adm. grdchk fail so far
1159      - tlm. grdchk OK
1160      - checked tapelev/comlev recomputations: OK
1161    <<<checkpoint51b_pre
1162    
1163    checkpoint51a_post
1164    o added code for biogeochemistry package
1165      - new pkgs: dic, gchem
1166      - new subroutine in ptracers
1167    o modify code for biogeo packages
1168      - in model/src and pkg/ptracers
1169    
1170    checkpoint51
1171    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1172      - autodiff, ctrl, exf, grdchk, seaice
1173      kept separate packages
1174      - cost, ecco, obcs
1175    o updating verification/internal_wave, verification/lab_sea
1176      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1177    
1178    checkpoint50i_post
1179    o Preparing next differentiable checkpoint and sync
1180      of MAIN vs. ecco-branch
1181      - 1st step: this one is differentiable
1182      - 2nd step: next(! not this) checkpoint will have updated packages
1183                  from ecco-branch)
1184    
1185    checkpoint50h_post
1186    o new package "land": provide surface BC for AIM.
1187    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1188    o AIM: use true log-P extrapolation for near surface temp (= as in
1189        F.Molteni paper) ; update aim.5l_cs output.
1190    o New variable in PARM03 for more flexible pickups
1191    o somewhat cleaned package initialisation sequence for
1192      ctrl/ cost/ ecco/ in packages_... routines
1193    
1194    checkpoint50g_post
1195    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1196      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1197      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1198        made the default because of faster convergence than ADI
1199    
1200    checkpoint50f_post
1201    o exf totally restructured
1202      - replaced all exf_set_ routines by one generic exf_set_gen.F
1203        and made sure it's still differentiable
1204      - split exf_getffields.F into new exf_bulkformulae.F
1205      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1206      - updated adjoint/makefile and relevant verif. accordingly
1207    
1208    checkpoint50f_pre
1209     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1210          + change Evap over land. (update aim.5l_cs output)
1211     o added missing .cvsignores and made uniform across expts
1212     o changed configuration of tidal_basin_2d expt
1213     o added pkg/debug functions for tracing code in fatal crashes
1214     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1215     o new fn in pkg/monitor to stop model if solution grows too big
1216     o removed lots of single quotes from comments
1217    
1218    checkpoint50e_post
1219    o make KPP work with PTRACERS
1220     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1221       nearly a copy of kpp_transport_s
1222     - there is no analogue to SurfaceTendencyS, so I have to use
1223       gPtr(of the surface layer) instead
1224    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1225    checkpoint50e_pre
1226    
1227    checkpoint50d_post
1228    o change kpp output from multiple-record state files to single-record state
1229      files analogous to write_state.F
1230    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1231      analogous to the cg2d-related output.
1232    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1233      so that writing to internal file fn (with length 512) fails.
1234    checkpoint50d_pre
1235    
1236    checkpoint50c_post
1237    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1238    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1239    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1240    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1241    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1242    
1243    checkpoint50c_pre
1244    Merging from release1_p13:
1245    o bug fix for pkg/seaice dynamic solver
1246    o Added SEAICE_initialHEFF to pkg/seaice
1247    
1248    checkpoint50b_post
1249    o store u*,v* in gU,V instead of in guNm1,gvNm1
1250    o in order to put the momForcing out of the Adams-Bashforth:
1251      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1252      to timestep.F
1253    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1254    o re-generate output for highly sensitive test-exp:
1255       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1256    
1257    checkpoint50b_pre
1258    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1259    o corrected CPP option mismatch in exf_Bulk... functions for case
1260      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1261    
1262    checkpoint50a_post
1263    o Bug fix for merging between c50 and KPP.
1264      ikey was passed from thermodynamics to kpp_calc via
1265      common block rather than being recomputed in kpp_calc,
1266      in contradiction with new key itdkey.
1267      New key ikppkey created, and tamc.h headers updated.
1268    
1269    checkpoint50
1270    - 2nd step of merge with ecco-branch:
1271      merge changes in ecco-branch back into main trunk
1272    - bug fix in find_alpha
1273    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1274    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1275    - merged some sliced AD support routines
1276    
1277    checkpoint49
1278    merged from ecco-branch:
1279    o exf:
1280      - Enable initialisation of forcing fields to constant
1281        (runtime) values.
1282      - in exf_getffields.F
1283        Reduce i-/j-loop to interior domain, discarding overlaps.
1284        That also fixes wrong TAF-key computations for key_1, key_2
1285        with bulf formulae.
1286      - exf_init.F modify #ifdef for exf_init_evap
1287      - exf_getffieldrec.F, ctrl_getrec.F
1288        The following INT-usages are not safe:
1289          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1290          fldcount = int(fldsecs/fldperiod) + 1
1291        and were modified.
1292    o autodiff: checkpoint_lev...
1293      - updated storing for bulk formulae (some arrays were missing)
1294      - added state for seaice package
1295      - synchronized with main branch
1296    o DIVA:
1297      Modif.s in
1298      - the_main_loop.F
1299      - the_model_main.F
1300      and added cost_final_restore.F cost_final_store.F
1301      o With these changes, it is possible to fully separate
1302        the first forward run to compute the cost function (mdthe_main_loop)
1303        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1304        into separate model executions.
1305        This enables better tuning of DIVA to given queue sizes.
1306      o Loss of cost function value in consecutive DIVA runs is
1307        fixed by storing to 'costfinal' file.
1308      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1309        beginning/end of adjoint integration is accounted for.
1310      The current changes apply to TAF-1.4.26.
1311      TAF has one remaining bug, requiring one manual change
1312      (see MITgcm manual).
1313    o cal: synchronized between MAIN and ecco-branch
1314    
1315    checkpoint48i_post
1316    o Changes to restore differentiability of code w.r.t. previous tag
1317      (mostly adding new routines to make list and replacing
1318      pressure by totPhiHyd).
1319    o Updated and merged grdchk package
1320      - has both ADM and TLM checks
1321      - works for single- and multi-proc.
1322      - output cleaned
1323      - worked successfully for parallel DIVA
1324    o genmake:
1325      - Adding -platform=SP4
1326      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1327    o Modif. for DIVA:
1328      ctrl_unpack should not be called in intermediate DIVA interval.
1329      (similar thing would apply for active files such as
1330      tbar, sbar, psbar, which should not be reinitialised;
1331      only relevant for ecco-branch)
1332    
1333    checkpoint48h_post
1334    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1335    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1336    o Added SEAICE_initialHEFF to pkg/seaice
1337    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1338    
1339    checkpoint48g_post
1340    --- EOS:
1341    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1342      store total Potential in totPhyHyd for diagnostics & EOS.
1343    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1344    --- Pressure/geopotential gradient:
1345    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1346    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1347      ( changes results of global_ocean_pressure )
1348    o NLFS + z-coord.: add eta*Rho' contribution.
1349    o accurate phiHyd when using interface-W at the middle between 2 centers
1350     ( changes results of ideal_2D_oce )
1351    o includes r* 2nd term in potential gradient.
1352    
1353    checkpoint48f_post
1354    Merging from release1_p12:
1355    o Modifications for using pkg/exf with pkg/seaice
1356      - improved description of the various forcing configurations
1357      - added basic radiation bulk formulae to pkg/exf
1358      - units/sign fix for evap computation in exf_getffields.F
1359      - updated verification/global_with_exf/results/output.txt
1360    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1361      (SBO) core products, including oceanic mass, center-of-mass,
1362      angular, and bottom pressure (see pkg/sbo/README.sbo).
1363    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1364      to avoid negative values in shallow regions.
1365      - updated verification/natl_box/results/output.txt
1366      - updated verification/lab_sea/results/output.txt
1367    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1368    o Added useSingleCpuIO option (see PARAMS.h).
1369    o Updated useSingleCpuIO option in mdsio_writefield.F to
1370      work with multi-field files, e.g., for single-file pickup.
1371    o pkg/seaice:
1372      - bug fix in growth.F: QNET for no shortwave case
1373      - added HeffFile for specifying initial sea-ice thickness
1374      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1375    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1376      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1377    o pkg/seaice:
1378      - adjoint-friendly modifications
1379      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1380    
1381    checkpoint48e_post
1382    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1383    o dynamics: change definition of computational domain & adapt mom_fluxform
1384      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1385    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1386        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1387        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1388        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1389        inverted_barometer solid-body.cs-32x32x1
1390      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1391    
1392    checkpoint48d_post
1393    o in preparation for r*:
1394     a) use pre-computed gradient of hydrostatic potential:
1395        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1396     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1397        => affects results of glob_oce_pressure (different truncation error)  
1398      update output.txt of ideal_2D_oce & global_ocean_pressure
1399    
1400    checkpoint48d_pre
1401    o in preparation for r*:
1402      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1403      pass the 2 comp. of the grad. as arguments to momentum S/R.
1404      but for the moment, only used if it does not change the results.
1405    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1406    
1407    checkpoint48c_post
1408    Modifications in treatment of initial flux forcing controls
1409    to avoid extra storing of flux fields.
1410    
1411    checkpoint48c_pre
1412    o Added tidal_basin_2d experiment (currently 1D!)
1413    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1414    
1415    checkpoint48b_post
1416    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1417     (modification to pressure gradient not yet implemented)
1418    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1419      (for U & V) that are used for vertical advection of momentum.
1420    
1421    checkpoint48a_post
1422    o In preparation for r*, use temp. array to compute vertical transport
1423       in flux-form momentum pkg. => change results of few test-exp.
1424      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1425                        lab_sea, natl_box & plume_on_slope
1426    
1427    checkpoint48
1428    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1429    
1430    checkpoint47j_post
1431    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1432    o moved adexch from forward_step to addummy_in_stepping
1433    o added exch in ctrl_map_...
1434    o aveFreq.=0. at end of cost_final to avoid overwrite in
1435      reverse checkpointing loop
1436    o Yet more changes in gmredi:
1437      * adgmredi_calc_tensor
1438        avoiding all recomputation of gmredi_slope_limit
1439      * adgmredi_x/y/rtransport
1440        added flag for excessive storing to avoid recomp. of
1441        u/v/rtans, dTdx/y/z
1442        -> this is not really necessary and very memory-consuming
1443      * adgmredi_slope_psi:
1444        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1445      * gmredi_slope_limit
1446        re-activated full calculation of taperfct for case 'ac02'
1447    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1448    
1449    checkpoint47i_post
1450    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1451    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1452      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1453    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1454    o gmredi: fix few bugs.
1455    
1456    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1457    This will be a good checkpoint to plug into the ecco-branch.
1458    o few modif.'s to get latest version adjointed
1459      (mainly kick out code in ini_linear_phisurf)
1460    o modif's to run adjoint with exactConserv
1461    o case GM_BOLUS_ADVEC should be cleaned
1462      S/R gmredi_slope_psi should be cleaned
1463    o verification/carbon now has exactConserv=.TRUE.
1464    
1465    checkpoint47g_post
1466    o time-average AIM output: becomes independent from statvars time-average
1467      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1468    o After TAF bug fix:
1469      Tested adjoint of gmredi package.
1470      Tests were done with checkpoint47 rather than with latest
1471      checkpoint47f_post since the latter is broken for the adjoint
1472      verification/carbon/ contains both ADM and TLM gradient checks.
1473    Here they are, before they get changed/lost/stolen.
1474    Mostly modif.'s to fix numerical sensitivities.
1475    Gradient checks OK for
1476    - GM_taper_scheme:
1477      * clipping
1478      * ac02
1479      * linear
1480      * glw91
1481      * dm95
1482      * ldd97
1483    - GMREDI_OPTIONS:
1484      * GM_VISBECK_VARIABLE_K
1485      * GM_NON_UNITY_DIAGONAL
1486      * GM_EXTRA_DIAGONAL
1487      * GM_BOLUS_ADVEC
1488    in conjunction with data.gmredi parameters to be checked in
1489    in a few minutes under verification/carbon/code/
1490    
1491    checkpoint47f_post
1492    Merging from release1_p10:
1493    o modifications for using pkg/exf with pkg/seaice
1494      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1495        and SEAICE_EXTERNAL_FLUXES
1496      - pkg/exf CPP options EXF_READ_EVAP and
1497        EXF_NO_BULK_COMPUTATIONS
1498      - usage examples are Experiments 8 and 9 in
1499        verification/lab_sea/README
1500      - verification/lab_sea default experiment now uses
1501        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1502    
1503    checkpoint47e_post
1504    o created a tag prior to creating a branch
1505    
1506    checkpoint47d_post
1507    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1508      at the bottom boundary had an erroneous half slip boundary condition
1509    o added bottom drag and no slip boundary condition capabilities to
1510      oceanic pressure coordinates code
1511    o added new verification experiment global_ocean_pressure, this experiment is
1512      also described in the tutorial section of the manual
1513    checkpoint47d_pre
1514    
1515    checkpoint47c_post
1516    o Added a verification experiment for a global cubed-sphere ocean run
1517      -  verification/global_ocean.cubed32x32x30
1518      -  uses pkg/therm_seaice and pkg/bulk_forcing
1519    
1520    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1521    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1522      when using P-coordinate; only implemented for atmospheric config.
1523    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1524      NOTES: requires option NONLIN_FRSURF to be "#define".
1525    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1526    
1527    checkpoint47b_post
1528    Merging from release1_p9:
1529    o pkg/seaice
1530      - removed GOTO's and added taf directives
1531      - double precision constants to reduce the g77 (Linux)
1532        to F77 (SGI) differences reported in release1_p8
1533    o tools/genmake
1534      - added SGI options
1535    o verification/testscript
1536      - updated to that of checkpoint47a_post
1537    o verification/global_ocean.90x40x15/input/eedata
1538      - modified for SGI f77 compatibility
1539    o verification/lab_sea
1540      - added description of sea-ice model
1541      - added missing matlab routines
1542      - added test of thermodynamics parallelization
1543    
1544    checkpoint47a_post
1545    o new pkg: aim_v23
1546     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1547       for now, keep the same surface forcing as before.
1548     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1549     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1550     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1551    o add diagnostic of surface correction term in monitor output
1552    
1553    o bulk_force and therm_seaice
1554    - Two packages:  bulk_force (Bulk forcing)
1555      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1556    - Earlier integration from Stephaine Dutkiewicz
1557      and Patrick Heimbach.
1558    - Two ifdef statements for compile time,
1559       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1560    
1561    checkpoint47
1562    differentiable version of checkpoint46n_post
1563    o bug fix in quasihydrostaticterms
1564    o * "clean" adjoint code (in terms of extensive recomputations)
1565        can now be obtained for all GMREDI options (i.e. for
1566        - GM_VISBECK_VARIABLE_K
1567        - GM_NON_UNITY_DIAGONAL
1568        - GM_EXTRA_DIAGONAL
1569        - GM_BOLUS_ADVEC )
1570      * However, wrong gradient check problem remains unsolved.
1571      * New CPP options have been introduced for different
1572        tapering schemes
1573    o external_fields_load now part of differentiation list
1574    o pressure needs multiple storing;
1575      would be nice to have store_pressure at beginning or
1576      end of forward_step, e.g. by having phiHyd global (5-dim.)
1577      (NB: pressure is needed for certain cases in find_rho,
1578      which is also invoked through convective_adjustment).
1579    o recomputations in find_rho for cases
1580     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1581    o #define ATMOSPHERIC_LOADING should be differentiable
1582    o ini_forcing shifted to begining of initialise_varia
1583    o Incorporating QNVS line search routines into MITgcm
1584      (this is separate code, and therefore not under pkg)
1585      lsopt/, optim/
1586    o Updated verification/carbon/
1587      - #define GM_VISBECK_VARIABLE_K
1588      - GM_taper_scheme    = 'ldd97'    
1589    
1590    checkpoint46n_post
1591    Merging from release1_p8:
1592    o verification/natl_box:
1593      updating new external_fields_load routine
1594    o New package: pkg/seaice
1595      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1596      The sea-ice code is based on Hibler (1979-1980).
1597      Two sea-ice dynamic solvers, ADI and LSR, are included.
1598      In addition to computing prognostic sea-ice variables and diagnosing
1599      the forcing/external data fields that drive the ocean model,
1600      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1601      The implied surface heat flux is then stored in variable
1602      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1603      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1604      non-local transport term.  Because this call precedes model
1605      thermodynamics, temperature under sea-ice may not be "exactly" at
1606      the freezing point by the time theta is dumped or time-averaged.
1607      N.B.: fairly large differences in accuracy occur across
1608            different platforms/compilers; comparison between
1609            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1610            generated output gives:
1611       T           S           U           V
1612      C D M    c        m  s        m  s        m  s        m  s
1613      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1614      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1615      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1616    
1617      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1618    o GAD:
1619      - generated new common blocks to account for call of
1620        same gad routines with differing traceridentities
1621        (needed to modify tracerIdentity indices in GAD.h)
1622      - generated separate common blocks for case useCubedSphereExchange
1623        (Department of Futurology)
1624      - parameter lists to gmredi_?transport: added tracerIdentity
1625      - added new key indices to tamc.h
1626    o external_fields_load:
1627      - added this routine to TAF list
1628      - needed to make some common blocks global and additional storing
1629        along the same lines as exf package (checkpoint_lev?_directives.h)
1630    o exf:
1631      updated external forcing package
1632      - bug fixes carried over from ecco-branch
1633        (missing OBCS_OPTIONS.h in two routines)
1634      - enable easy to use "no forcing".
1635      - added exf I/O for atmospheric loading
1636      - added exf I/O for runoff data
1637      - transfered scaling between exf <-> MITgcm to exf namelist
1638    o Adding new verification experiment global_with_exf.
1639      This verification experiment is almost identical to the
1640      global_ocean.90x40x15 experiment, except that it uses
1641      the exf (and cal) package instead of the
1642      external_fields_load routine (cf README file).
1643    
1644    checkpoint46m_post
1645    o modified testscript to return -- when there are no lines of "%MON" output
1646    o added new flag "quasiHydrostatic" for QH mode
1647      and new routine quasihydrostaticterms()
1648    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1649      New routine: mom_u_coriolis_nh()
1650    o fixed sign of non-hydrostatic metric terms in u and v equations.
1651      Depend on correct sign of gravitySign.
1652    o added work.pc* to .cvsignore in aim directories using ifc
1653    o introduced flag for controllin non-hydrostatic metric terms
1654    o removed gravitySign from PARM04
1655    o switched to g77/ifc from pgf77 in aim experiments
1656    
1657    checkpoint46l_post
1658    o made convective adjustment work with pressure coordinates:
1659     - changed the direction of k-loop in convective_adjustment.F for the
1660       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1661     - adjusted the reference pressure k-index in convective_adjustment.F
1662     - adjusted the convection condition in convect.F (in analogy to
1663       calc_ivdc.F)
1664     - convective_adjustment no longer computes anything on the halos
1665     - removed the warnings about negative salinity from find_rho.F and
1666       find_alpha.F; instead the new routine look_for_neg_salinity, called
1667       at the beginning of find_rho, find_alpha, and find_beta, does a
1668       check of the entire slice, if CPP-option
1669       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1670    checkpoint46l_pre
1671    
1672    checkpoint46k_post
1673    o fixed the verification/global_ocean.90x40x15 experiment:
1674     - new bathymetry (the world according to A., JMC, and M.)
1675     - new initial fields and forcing fields (*.bin files)
1676     - new POLY3.COEFFS (for the next release one should switch to a full
1677       equation of state: JMD95P or MDJWF)
1678     - fixed several errors and redundancies in the data file
1679     - experiment uses looped cells
1680     - added matlab directory with diagnostic scripts for plotting of output
1681    
1682    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1683     - read AIM physics parameters from a file (data.aimphys)
1684     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1685    
1686    checkpoint46j_post
1687    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1688    o move wVel computation at the end of the time step, in S/R integr_continuity
1689    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1690    o update timeave pkg for wVel diagnostic.
1691    checkpoint46j_pre
1692    
1693    checkpoint46i_post
1694    o Clean up AIM package (and keep the results unchanged):
1695      include CPP_OPTION and use IMPLICT NONE in all routines ;
1696      declare all the variables _RL ; use _d 0 for all numerical constants.
1697      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1698    
1699    checkpoint46h_post
1700    o cleaned up the use of rhoNil and rhoConst.
1701      - rhoNil should only appear in the LINEAR equation of state, everywhere
1702        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1703        and the dynamical equations are all divided by rhoConst
1704    o introduced new parameter rhoConstFresh, a reference density of fresh
1705      water, to remove the fresh water flux's dependence on rhoNil. The default
1706      value is 999.8 kg/m^3
1707    o cleanup up external_forcing.F and external_forcing_surf.F
1708      - can now be used by both OCEANIC and OCEANICP
1709    checkpoint46h_pre
1710    
1711     Added code to convert surface volume flux (fresh water) into
1712     a mass flux when using P coordinates in the ocean (OCEANICP).
1713     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1714    
1715    checkpoint46g_post
1716    o Include a new diagnostic variable phiHydLow for the ocean model
1717      - in z-coordinates, it is the bottom pressure anomaly
1718      - in p-coordinates, it is the sea surface elevation
1719      - in both cases, these variable have global drift, reflecting the mass
1720        drift in z-coordinates and the volume drift in p-coordinates
1721      - included time averaging for phiHydLow, be aware of the drift!
1722    o depth-dependent computation of Bo_surf for pressure coordinates
1723      in the ocean (buoyancyRelation='OCEANICP')
1724      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1725        Theta, Salinity, and Pressure in the parameter list. This routine is
1726        presently contained in find_rho.F. This routine does not give the
1727        correct density for 'POLY3', which would be a z-dependent reference
1728        density.
1729    o cleaned up find_rho
1730      - removed obsolete 'eqn' from the parameter list.
1731    o added two new verification experiments: gop and goz
1732      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1733    checkpoint46g_pre
1734    
1735    checkpoint46f_post
1736    o Enable tangent linear (forward mode) gradient checks:
1737      - extended active file handling to g_... files
1738      - added TANGENT_SIMULATION to theSimulationMode
1739      - extended grdchk package accordingly
1740    o added tangent linear setup in verification/carbon/code_ftl
1741    o added adjoint setup in verification/front_relax/code_ad
1742    
1743    checkpoint46e_post
1744    o Added new equation of state -> MDJWF
1745      - EOS of McDougall et al., 2002, JAOT, submitted
1746      - caveat: the equation of state is only valid for a smaller (more
1747        realistic?) range of values than JMD95P/Z and UNESCO
1748      - added masks to the calculation of pressure in store_pressure
1749      - added more check values for density in check_eos (ini_eos.F), some of
1750        the old check values are out of the range of the MDJWF-eos, so don't
1751        expect perfect matches for those
1752    checkpoint46e_pre
1753    
1754    checkpoint46d_post
1755    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1756      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1757      case of pressure coordinates. eosType='JMD95Z' in
1758      combination with buoyancyRelation='OCEANICP' now causes an error.
1759    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1760      in find_alpha/beta.
1761    checkpoint46d_pre
1762    
1763    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1764      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1765    
1766    checkpoint46c_post
1767    o Changes necessary for ocean in p-coordinates
1768     -  Added new buoyancy relation = 'OCEANICP'
1769     -  Added new parameters = gravitySign (this used to be contained inside
1770        the factor dRdZ which I added when we first switched to R coordinates).
1771     X GM/Redi is not compatible (yet)
1772     X bottom drag and no-slip need to be debugged.
1773    checkpoint46c_pre
1774    
1775    checkpoint46b_post
1776    o Added new equation of state -> JMD95Z and JMD95P
1777      - EOS of Jackett and McDougall, 1995, JAOT
1778      - moved all EOS parameters into EOS.h
1779      - new routines ini_eos.F, store_pressure.F
1780    o Added UNESCO EOS, but not recommended because it requires
1781      in-situ temperature (see JMD95)
1782    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1783      unesco.f to be used with POLY3
1784    checkpoint46b_pre
1785    
1786    checkpoint46a_post
1787    o Added (atmospheric) pressure loading
1788      - new field in FFIELDS.h, etc...
1789      - new cpp flag ATMOSPHERIC_LOADING
1790    o Changed hFacC to _hFacC in calc_phi_hyd.F
1791    o Added SHORTWAVE_HEATING to some files for consistency
1792    checkpoint46a_pre
1793    
1794    checkpoint46
1795    further merges from release1_p5
1796    o new ctrl package
1797      - adopted from ECCO environment to enable optimization
1798      - added Eliassen Palm fluxes to controls
1799    o added Eliassen Palm flux controls to gradient check package
1800    o cost package
1801      - Compatible with new ctrl package
1802      - added Eliassen Palm cost hooks
1803      - modif's of existing cost functions
1804    o Adjoint-related bug fixes in kpp:
1805      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1806      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1807    o autodiff package
1808      - flow directives:
1809        + new for S/R do_the_model_io
1810        + enhanced for S/R checkpoint
1811        + new gmredi.flow
1812      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1813        disable adcommon.h/g_common.h by default.
1814      - fixed problem for adjoint of global_max
1815    o modified verification/carbon/
1816    o New setup for adjoint of global_ocean
1817    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1818    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1819    o incorporated hooks for sponge layer code (external_forcing.F)
1820    
1821    checkpoint45d_post
1822    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1823    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1824      (affects plume_on_slope "cg2d" output)
1825    o add new parameter deltaTfreesurf for free-surface time stepping
1826    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1827    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1828    o change phiMin in exp1 (to agree with documentation)
1829    o add new flags:
1830     - T,S forcing inside/outside Adams-Bashforth
1831     - turn off temp,salt advection and/or forcing
1832     - for each tracer, define internal flag for multiDimAdvection & A-B
1833    o monitor: change definition of KE to check conservation of Energy
1834    
1835    checkpoint45c_post
1836    o Removed f90 comments ("!")
1837    o Modified initialisations to enable exf package for MITgcm
1838      (without invoking ECCO_PACKAGE).
1839    o modifications to gradient check package (Martin Losch)
1840      - enable centered differences
1841      - modified format of standard output
1842    
1843    checkpoint45b_post
1844    o cleaned exchange calls in cg2d
1845    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1846    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1847      to configure barotropic setup (Martin Losch)
1848    o moved some initialisations within bi,bj loop in dynamics
1849      (TAF flow dependency)
1850    o in initialise_varia, moved call packages_init_variables
1851      before convective_adjustment_init
1852      (corresponding adjustment of TAF tape initialisation).
1853    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1854    
1855    checkpoint45a_post
1856    o compute Rho over the whole domain (extend iMin,jMin indices)
1857    o specific exchange for X-slice domain (case Ny=1)
1858    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1859    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1860    
1861    checkpoint44h_post = checkpoint45
1862    o Fix to restore differentiability:
1863      place at which packages_init_variables is called in
1864      initialise_varia is crucial for reverse control flow.
1865    o modifications in GMRedi to enable stable adjoint
1866      (corresponding modif's in thermodynamics, dynamics)
1867    o added missing hook for sponge layer code in external_forcing
1868    o modified test cost functions
1869    o storing in gad_advection (plus removal of write(0,*)!
1870    o missing headers TR1.h added in convective_adjustment routines
1871    o errorMessageUnit set non-equal zero in eeboot
1872      (conflict on some platforms, e.g. IBM SP3)
1873    o modified carbon verif.
1874    
1875    checkpoint44h_pre
1876    o vertical grid option: allow to put the Interface at the middle between
1877      2 cell-centers ; replace delZ in pkg/kpp by drF.
1878    o GM Advective form: Tracers are advected using the residual transport (=
1879      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1880    
1881    checkpoint44g_post
1882    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1883      results) ; ifdef missing in thermodynamics.F
1884    
1885    checkpoint44f_pre,checkpoint44f_post
1886    o added PTRACERS package
1887      This allows an arbitrary number of passive tracers to be integrated
1888      forward simultaneously with the dynamicaly model.
1889      + Implemented so far:
1890        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1891        - I/O and checkpointing
1892        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1893      + Not implemented so far:
1894        - KPP
1895        - OBCS
1896      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1897        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1898        line in data.pkg.
1899      + This package is disabled by default since it increases storage.
1900    
1901    
1902    o testscript: added -cleanup option
1903    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1904                 b) enable to filter 2D fields.
1905    
1906    checkpoint44e_pre,post
1907    o re-wrote convective adjustment to use pre-calculated weights
1908      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1909      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1910      Original calls to convect() still in place.
1911    
1912    chkpt44d_pre,post
1913    o added missing EXCLUDE_MONITOR flags
1914    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1915      (incompatible typ in MIN/MAX expressions caused problems
1916      on IBM SP3)
1917    o in genmake added variable MAKEDEPEND
1918      plus resetting for case SunOS
1919    o added timer_stats.c routine for IBM SP3
1920    o removed variables in dynamics
1921    !!! I forgot to create tag chkpt44d_pre !!!
1922    !!! But chkpt44d_pre = chkpt44c_post    !!!
1923    
1924    o real fresh water flux implemented with non-linear free-surface.
1925    
1926    chkpt44c_pre,post
1927    o few fix (mask in shap_s2, EmPmR in external_field_load,
1928      USE_NATURAL_BCS in solve_for_P);
1929    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1930    
1931    checkpoint44b_pre/_post
1932    o merge of relevant stuff from the ecco-branch:
1933      - genmake: removed $S64 overwrite for case SunOS
1934      - pkg/exf: update and corrections for field swapping and obcs
1935      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1936                  harmonized between ECCO and MITgcm
1937      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1938                      updated checkpointing_lev... lists for obcs
1939      - model/src: minor changes in forward_step, plot_field
1940                   added directive for divided adjoint in the_main_loop
1941      - pkg/mdsio: added mdsio_gl_slice
1942    
1943    o check parameters & config (chkpt44a_pre,post)
1944    o OBC and NonLin_FrSurf.
1945    
1946    checkpoint44
1947    o fix bug in mom_vi_del2uv
1948    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1949    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1950    o update AIM experiments (NCEP input files)
1951    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1952    o added some stuff for AD
1953    
1954    checkpoint43
1955    o added two new advection tests
1956    o added global 4x4 degree ocean test
1957    o added test of H&S94 with free surface on cube
1958    o some final mods for gradient check, adjoint,...
1959    
1960    checkpoint42
1961      Fixed AD-related problems:
1962    o Store directives up-to-date with re-arranged Adams-Bashforth
1963      (mainly thermodynamics.F)
1964    o New store directives for multi-dim. advection schemes
1965      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1966      * new common block and key passkey
1967      (mainly gad_advection.F)
1968    o Modified store directives for split of dynamics/thermodynamics
1969      for the case ALLOW_KPP
1970    o Cleaned argument list for timestep_tracer.F
1971    
1972    checkpoint41
1973    o re-formatted/added comments in prologues of key subroutines
1974      to work with protex
1975    
1976    checkpoint40
1977    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1978    o added FLT (floats) package from Arne along with demo. experiment
1979    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1980      implementation of forward-in-time forcing terms
1981    o more mods for non-linear free-surface including new variable
1982    o modified multi-dim method to work on cube
1983    o bug fix in KPP (from DM)
1984    
1985    checkpoint40pre9
1986    o added DST advection schemes
1987    o fix MPI bug on SGI's
1988    o modifications for non-linear free-surface
1989    o fixed conditionals for fixed flow/passive tracer only mode
1990    o added tension/strain form of stress tensor
1991    o changes to commenting of arguments for TAF/TAMC
1992    o added/updated many matlab scripts
1993    o added multi-dimensional advection method for tracers
1994      
1995    checkpoint40pre8
1996    o new package rw/
1997      Added method for dumping intermediate local arrays:
1998      mdsio_writetile - same as mdsio_writefield except works from inside
1999                        bi,bj loop
2000      mdsio_writelocal - same as mdsio_writetile except works for local
2001                         arrays
2002      write_local_r? - higher-level wrapper for mdsio_writelocal
2003      Controlled by diagFreq. Defaults to zero (ie. no dumps)
2004      Example given at end of mom_vecinv.F that dumps some local arrays.
2005    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
2006      control flux-form versus vector invariant code.
2007      Switch is runtime flag vectorInvariantMomentum (defaults to false)
2008      or genmake -DISABLE ...
2009    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
2010      (additional storing is now needed for case vecinv;
2011      currently nothing implemented to switch this storing off
2012      in case fluxform is used since no CPP flag available).
2013    
2014    checkpoint40pre7
2015    o bug fix in dynamics.F
2016      calc_viscosity called before k=1,Nr loop.
2017    o added some #ifdef's ALLOW_PASSIVE_TRACER
2018    o cleaned initialisations in ctrl_map_ini
2019      related to TAF
2020    
2021    checkpoint40pre6
2022    o split dynamics into thermodynamics & dynamics
2023    o corresponding split of calc_diffusivity into
2024      calc_diffusivity, calc_viscosity
2025      (kpp_calc_diff, kpp_calc_visc).
2026    o Added diffkr, kapgm to control variables
2027    o bug fix in gmredi_slope_limit for ldd97
2028    
2029    checkpoint40pre5
2030    o proper initialization of Adams-Bashforth time stepping
2031      + uses forward step for very first step of model (iter=0)
2032    o re-generated *all* output since almost all output is modified by this
2033      change (sorry but we've been putting this one off for about 2 years)
2034      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
2035        *not* regenerated since they are already out of date and I don't
2036        want to create the impression that they are suddenly working.
2037    o removed KAP stuff for DEC's
2038    o modified/added many .cvsignore files in */code and */input
2039    o added new expt "solid-body.cs-32x32x1"
2040      + this uses an alternative form of ini_curvilinear_grid.F which
2041        is not necessarily any better than the current one...
2042    
2043    checkpoint40pre4
2044    o added re-initialisations of utrans,vtrans,rtrans in
2045      calc_common_factors which are crucial for TAF.
2046    o extended iMin,jMin range for calc_common_factors,
2047      calc_diffusivity
2048    o added option ALLOW_PASSIVE_TRACER
2049    o a few minor updates and fixes
2050    
2051    checkpoint40pre3
2052    o created calc_gtr1.F for gad package
2053    o split the_main_loop and re-introduced forward_step
2054    o some recomputations of nIter0 for TAMC
2055    
2056    checkpoint40pre2
2057    o Updated to latest branch of AJA, JMC
2058    o Added gradient check package
2059    o Added routines for passive tracer handling
2060    o Added carbon sequestration sensitivity experiment
2061    
2062    checkpoint39
2063     o Modifications and fixes to support TAMC
2064       (mainly missing or wrong directives)
2065     o Corrected common blocks when fooling TAMC to produce adjoint I/O
2066       in addummy_in_stepping
2067     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
2068     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
2069     o Included following packages:
2070       cal: calendar
2071       exf: external forcing
2072       ecco: essential routines to control use of cal, exf
2073             (NB: this is not the full ECCO environment)
2074     o disabled some packages by default in genmake
2075    
2076    checkpoint38
2077     o see notes_c37_adj.txt
2078     o corrected wrong layer index in external_forcing_t
2079     o replaced the_main_loop/forward_step by the_main_loop
2080     o removed forceoutput from write_state
2081       (replaced criteria for initial/final state)
2082     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
2083    
2084    checkpoint37
2085     o mdsio.F routine split and packaged in pkg/mdsio
2086       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
2087        used unless genmake -disable=mdsio)
2088     o allow a more precise surface-geopotential gradient for the atmosphere
2089       taking into account the change in space of Alpha (=1/rho) at the surface.
2090     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
2091       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
2092     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
2093       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
2094       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
2095     o Time-Average diagnostics defined as a pseudo package "timeave".
2096     o pickup files : old pickup (before c35) did not work with new code (c35
2097       and after) unless activating 2 commented lines in initialise-varia.
2098     o Non-Hydrostatic pickup file Pb fixed.
2099     o bug with Rigid-lid version (since c35) fixed.  
2100    
2101    checkpoint36
2102     o implement Crank-Nickelson barotropic time-stepping
2103     o recover Time-Average diagnostics
2104     o fix Pb in checkpoint (PR#19)
2105     o AIM become a standard package ; clean unused CPP_kees
2106    
2107    checkpoint35
2108     o subtantial rewrite of dynamics.f
2109     o allows staggered time-stepping
2110     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
2111     o added bottom drag (linear + quadratic)
2112    
2113    checkpoint34
2114     o Modified exchange routines for correct reverse simulation.
2115     o Added verification output to comply with bug fix in impldiff.F
2116       as of c33 (exp2, natl_box).
2117     o Corrected store directives in dynamics.F
2118     o Corrected array boundaries in impldiff.F
2119     o Corrected array dimensions in gmredi.
2120       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
2121     o Added routine GLOBAL_SUM_INT to global_sum.F
2122     o Added mdsio_gl.F for ECCO purposes.
2123    
2124    checkpoint33
2125     o Fixed bug in lower BC in impldiff.F
2126     o Fixed confusion about units of forcing arrays in FFIELDS.h
2127       namely Fu,Fv,Qnet,Qsw,EmPmR:
2128       - Removed verification/natl_box/code/external_fields_scale.F
2129         (did not differ from that in model/src)
2130       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
2131         (see FFIELDS.h for description)
2132       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
2133         kpp_calc.F and kpp_transport_t.F
2134       - Removed model/src/external_fields_scale.F and calls to it
2135       - verification/natl_box uses flux data with "atmospheric" sign so
2136         a special version of external_fields_load.F is used to
2137         change the data as it's read in. This way, the arrays
2138         have the right units and signs at all times tha a user could
2139         possibly use them.
2140     o Corrected genmake to delete a temporary file during configuration
2141    
2142    checkpoint32
2143     o Scaling of forcing fields moved from external_forcing.F to
2144       external_fields_scale.F, called directly after loading fields.
2145     o Surface relaxation terms added to surface tendency fields in
2146       extra subroutine.
2147     o impldiff.F changed to avoid storing by TAMC of huge intermediate
2148       fields.
2149     o Changes in GMRedi to comply with packaging structure.
2150     o Modifications and bug fixes in KPP package.
2151     o Verification experiment for KPP added (verification/nat_box/)
2152    
2153    checkpoint31
2154     o Packages interface brought in line with defined standard
2155       -> new routines packages_...F
2156       -> changes in initialise_fixed.F, initialise_varia.F
2157       -> enables initialisation interface for ECCO package
2158     o Rescaling of external forcing fields immediately after read
2159       (removed from external_forcing.F)
2160       -> new: surface_fields_scale.F
2161       -> affects ini_foorcing.F, external_fields_load.F
2162     o Computation of surface tendencies before tendency updates.
2163       -> new: external_forcing_surf.F
2164     o Change of variable names useGMRedi, useKPP, useECCO
2165     o Further changes in dynamics.F, impldiff.F for TAMC
2166     o Tested for experiments 0, 2, 4.
2167       - not yet tested for GMRedi.
2168       - not yet tested for KPP.
2169    
2170    checkpoint30
2171     o Updates for OBCs
2172     o New experiment for test OBCs (internal_wave)
2173     o New output.txt in verification/exp4/results/
2174     o Updates for KPP: calculation of viscosity corrected, new variables
2175       kpp_dumpFreq and kpp_taveFreq
2176     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
2177       and entry for T90 in genmake
2178    
2179    checkpoint29
2180     o packaged KPP and GM/Redi
2181    
2182    checkpoint28
2183     o Corrected initialization of hFacMin for difference vertical coordinates
2184     o Modified calculation of partial cell thickness to more robust algorithm
2185     o config_summary.F: replaced write_1D_... by write_0D_...
2186       read_write.F: added subroutines write_0D_...
2187     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
2188       included some initialisations required for TAMC.
2189     o routine calc_isoslopes: modified sqrt computation to make it
2190       differentiable for zero argument.
2191     o routines dynamics, impldiff:
2192       included store directives and tape key computations required for TAMC.
2193     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
2194    
2195    checkpoint27
2196     o fixed calc_isoslopes() to so that cancellation of terms in tensor
2197       formulation works properly with variable resolution.
2198     o restructured the calling tree between the_model_main() and dynamics()
2199     o split initialise() into initialise_fixed() and initialise_varia()
2200     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
2201       in new routine ini_psurf()
2202    
2203    checkpoint26
2204     o moved some #ifdef in optional routines to encompass everything
2205       except the argument declarations. This was using up some memory.
2206     o fixed macros like _ADT to work with both versions of Linux cpp
2207     o cleaned up some unused and uninitialized variables
2208       (helps when debugging with strict compile options)
2209     o split up CPP_EEOPTIONS.h into options and macros
2210       (macros are now in eesupp/inc/CPP_EEMACROS.h)
2211     o patch for 2 processor JAM mode
2212    
2213    checkpoint25
2214     o updates for OBCs and NH
2215     o dramatically reduced memory usage
2216     o added "JAM" routines for use on Artic network
2217     o parameterization of convection by implicit vertical diffusion
2218     o added a diagnostic of convective index
2219     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
2220       (this is was partly for OBCs and NH but also in anticipation of
2221        an explicit free-surface option)
2222     o initial state input files for U and V
2223    
2224    checkpoint24
2225     o Removed some spurious "REAL"s
2226     o Updated KPP to latest version from JPL
2227     o Added a COS(latitude) in horizontal viscosity
2228    
2229    checkpoint23
2230     o Added del^4 diffusion for salt and temperature
2231     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
2232    
2233    checkpoint22
2234     o Made many small changes: implicit none, format(i5), etc...
2235     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
2236    
2237    checkpoint21
2238     o Introduced new I/O package that supports direct-access records (mdsio.F)
2239     o Split-up mid-level I/O routines
2240     o Updated input data for experiments 0,1,2,4 and 5
2241     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
2242    
2243    checkpoint20
2244     o Tidied up open-boundaries some more
2245     o Added non-hydrostatic code
2246     o Fixed some input data
2247     o Modified MPI start-up to work in "coupled" context.
2248    
2249    checkpoint19
2250     o Tidied up directory structure for verification experiments.
2251     o Added new code for open boundaries.
2252     o Corrected advective terms near boundaries.
2253     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
2254     o Implemented free-slip/no-slip BCs and del^4 dissipation.
2255     o Split default parameters out of ini_parms.F into set_defaults.F.
2256    
2257    checkpoint18
2258     o Further changes for optional code generation with
2259       CPP - ugh!
2260    
2261    checkpoint17
2262     o Beginning to incorporating modularity
2263       for supporting atmos. and ocean configs.
2264     o Small changes for TAMC complinace
2265     o New ultra simple test case. Barotropic box
2266       configuration "exp0".
2267    
2268    checkpoint16
2269     o Minor changes to exchange routines to support
2270       accumulation in reverse mode. Adjoint of an
2271       assignment is an addition.
2272     o Changes to support compilation by TAMC (LR(1)
2273       syntax) and by g77 under Linux ( 72 character
2274       limit ).
2275    
2276    checkpoint15
2277     Rewrote exchange routines to allow
2278     o General tile <-> tile connectivity.
2279     o TAMC reverse mode flag ( is this really needed? )
2280     o Variable width overlap and exchange region widths.
2281     o Hooks for sharing data via DMA, Arctic, Memory Channel,
2282       shmput/shmget, VIA, SYSV shmem and every other cool
2283       communication method.
2284    
2285    checkpoint14
2286     Consistent isomorphism chages made. These allow dynamical core
2287     to support both pressure and meters as a vertical coordinate.
2288    
2289    checkpoint13
2290     Release which corrects global_max problem and a couple
2291     of KGM time-averaging diagnostic errors. Also contains
2292     a double-gyre experiment setup as well as the baseline
2293     4 degree global template. The double gyre template is
2294     organised to allow it to be applied automatically to
2295     the baseline configuration.
2296    
2297    branch-point-rdot
2298     A few tidy-ups have been made bt the real point of this
2299     check-point (excuse the pun) is to allow a branch to be
2300     made for the purposes of adding the rDot alterations.
2301     I don't want to commit the rDot to the main-trunk until
2302     we've actually tested it...
2303    
2304    checkpoint12
2305     Tidy up and added generic genmake script (formerly
2306     configure script).
2307     Released to testers.
2308    
2309    checkpoint11
2310     Re-arranged initialise() and introduced ini_vertical_grid()
2311     and ini_masks_etc().
2312    
2313    checkpoint10
2314     Introduced the configure script.
2315     Separated out the diags package.
2316     Added template for writing time-averages of tile/intermediate quantities.
2317     Updated SIZE.h in exp2 and made the data big-endian.
2318    
2319    checkpoint9
2320     MPI fix. Filename changes (meta/data). salbin*y stuff.
2321     General tidy-up.
2322     SST.bin SSS.bin added to verification/exp2
2323    
2324  checkpoint8  checkpoint8
2325   Inludes time-dependant forcing and time-averaging.   Inludes time-dependant forcing and time-averaging.
2326   Works at 4x4 and 2.8125x2.8125 global   Works at 4x4 and 2.8125x2.8125 global

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