/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.848 by dimitri, Fri Jul 6 02:37:34 2007 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 gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
8      scheme and the corresponding test case (under front_relax dir). For now,
9      only available with Skew-flux form and not yet tested in realistic set-up.
10      adjoint: store directives updated, but gradient checks deteriorated,
11      so maybe GM/Redi adjoint is now broken.
12    o seaice adjoint
13      * add AREA, HEFF, HSNOW as control variable
14        (should not change lab_sea results)
15      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
16    o pkg/seaice:
17      * added computation of saltFlux in seaice_growth;
18        For time being, sea ice salinity is assumed constant
19        contribution of snow flooding to freshening of sea ice is neglected.
20        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
21        defaults to 0.0 in order to maintain backward compatibility.
22        Typical values for SEAICE_salinity are 4 to 10 g/kg.
23      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
24      * added SEAICE_availHeatFrac, which specifies fraction of surface level
25        heat content used to melt or grow ice
26    
27    checkpoint59d
28    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
29     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
30     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
31    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
32     and change default value of parameter "GM_Small_Number";
33     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
34       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
35       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
36    o pkg/ecco: cost function when applying pkg/smooth to controls
37    o pkg/ctrl: add forcingPrecond run time parameter
38    o pkg/seaice:
39     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
40     - fix bug in metric terms of u-equation in LSR solver (implicit part),
41       changes verification/lab_sea
42     - rearrange implicit part of u-equation in LSR solver to make it easier to
43       read, understand, and debug. This causes changes at the truncation level.
44     - fix (serious) bug in the boundary conditions (sign error in the implicit
45       part) of the LSR solver. Changes all LSR results.
46     - fixed problem with HSNOW initialization to avoid thick snow when AREA
47       is initilized with small values - does not change lab_sea results.
48     - added HsnowFile initialization capability
49    o pkg/smooth: addition to model/src and pkg/ctrl so allow
50     initialization of pkg/smooth and application to control vector
51    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
52    o dependencies: pkg/profiles requires pkg/cal
53    o pkg/profiles:
54     - added option ALLOW_PROFILES_GENERICGRID
55         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
56         that interpolation information (grid points and coefficients) is provided
57         within the netcdf input files.
58         -> sample matlab scripts can be found in MITgcm_contrib/gael
59         that allow you to prepare netcdf input files.
60     - also modified: cleaner include statements, cleaner error print statements,
61       cleaner stops when error, and more tests of the netcdf input files consistency.
62    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
63    o pkg/seaice:
64     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
65       requires a new routine: seaice_diagnostics_fill.F
66     - make sure that seaice does not move if not forced (pressure replacement
67       method, Hibler and Ip, 1995), changes results
68     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
69     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
70       It is turned off by default (=-1.), because it changes the results.
71     - make it possible to read AREA from a file, too.
72    
73    checkpoint59c
74    o add S/R and diagnostics for oceanic mixed-layer depth
75    o move GMRedi call after all vertical mixing schemes (including KPP)
76    o pkg/thsice:
77     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
78      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
79    o pkg/obcs:
80     - bug fix for balance code
81    o pkg/seaice:
82      - allow values of SEAICE_elasticParm > 1
83      - add new parameter SEAICE_evpTauRelax as an alternative
84        to SEAICE_elasticParm
85      - make lsr boundary conditions free slip (by default), changes result
86      - add code for no slip boundary conditions for lsr
87      - set minimum of zeta to zero (and not 4e8) (changes results)
88      - add a cap on AREA after advecting AREA if seaice_growth is not called
89    o change calculation of Visbeck K:
90      - no longer depend on tapering scheme; instead, compute slope (limited
91        by GM_maxSlope). this is equivalent to what was comuted before with
92        clipping or linear tappering.
93      - fix vertical averaging (wrong by 1/2 level)
94      - leave the old version (but will not be maintained) within
95        #ifdef OLD_VISBECK_CALC / #endif
96      - update output of exp. ideal_2D_oce
97    o change error catch in calc_r_star to improve vectorization
98    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
99      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
100    o adjoint:
101      Re-organized adjoint checkpointing according to Matt Mazloff
102      (but with modifs/completions/cleanups)
103      Storing is now bundled into large arrays to optimized I/O
104      (and second step in cleanup of the_main_loop)
105    
106    checkpoint59b
107    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
108      - export/import (between ocean & coupler) fields needed for ocean DIC.
109    o pkg/seaice:
110      - get rid of three more exchanges seaice_calc_viscosities (required
111        different loop boundaries in seaice_lsr and seaice_ocean_stress)
112      - bug fix in seaice_ocean_stress (update of lab_sea required)
113      - reduce loop boundaries to necessary minimum also in seaice_evp
114      - go back to the old way of computing deltaC/Z as the adjoint likes that
115        better
116    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
117      passive tracer to an Age Tracer) + update output.txt
118    o pkg/exf:
119      - implement A-grid / C-grid selection for wind-stress input files.
120      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
121      for now, in exf_bulk_largeyeager04.F only :
122      - change implementation for case where windspeed + 2. components wind-stress
123        are read-in. AND use rhoConstFresh to convert evap.
124    o pkg/seaice:
125      - use correct EXCH_UV for wind-forcing (on A-grid).
126      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
127        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
128    o pkg/exf:
129      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
130      EXF_INTERPOLATION:
131      - merge global_with_exf/code version of exf_interp_read.F
132        to the main code ;
133      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
134        reading the file ; Important: This options needs to be defined to recover
135        previous code.
136        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
137      - no longer loose real*8 precision along the way when using exf_iprec=64.
138    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
139      - change discretisation of evp-solver in order to avoid another exchange
140        (changes lab_sea) and clean up a little
141      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
142        help the adjoint (this also changes the results slightly)
143      - add a few "_d 0" where they had been missing in seaice_evp.F
144      - cleaning up: remove unused seaice_calc_rhs.F
145    o pkg/exf: some cleaning-up:
146      - change various "constants" into runtime parameters
147      - cleaned-up Large&Yeager04 routine which should eventually
148        replace exf_bulkformulae.F (changed names of S/R and CPP)
149        and merged various ALLOW_ATM_WIND options
150     only used with thsice pkg (in thsice_get_exf.F):
151      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
152        which are used when useStabilityFct_overIce=TRUE (= the default)
153      - change default values of ice & snow emissivity and scale downward LW
154        by ice & snow emissivity.
155    o pkg/thsice:
156     fix few little problems, in thsice_calc_thickn.F:
157      - growth vertically (and not laterally) if iceFrac == iceMaskMax
158      - melt only laterally if hIce < hThinIce (as the comments say)
159      and in thsice_extend.F:
160      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
161      - start to form ice as soon as the minimum ice-volume is reachable.
162     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
163      and cpl_aim+ocn
164    o pkg/kpp
165     - move computation of surface related input fields to KPP into a new
166       subroutine kpp_forcing_surf.F
167     - remove wrong (within bi,bj loops) EXCH calls.
168     - little cleaning (add argument myThid in last position, cvs header ...)
169     - for now, fix conservation problem by exchanging KPPviscAz (may not
170       be the best fix)
171    o pkg/seaice
172     - check for inconsistent evp parameter/cpp-flag combination
173     - remove leftover errIO flat for obsolete name list error handling
174    o OpenAD
175     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
176    
177    checkpoint59a
178    o pkg/seaice: some parameter clarifications and a little bit of clean up
179    o pkg/thsice: rename run-time parameters:
180       himin       -> hIceMin
181       himin0      -> hThinIce
182       hihig       -> hThickIce
183       i0          -> i0swFrac
184       transCoef   -> bMeltCoef
185       frac_energy -> fracMelting
186      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
187       with default values (for now) that do not change the results.
188      remove old version of thsice vars advection in pkg/seaice.
189    o in FFIELDS.h:
190      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
191      - make pLoad & sIceLoad always available (but still only used if
192         ATMOSPHERIC_LOADING is #define).
193    o pkg/kpp: replaced _KPP_RL with _RL
194    o bug fixes for vertical diffusivity computations when both KPP and
195        3D diffusivity arrays are used.
196    o pkg/seaice: fix bug in evp solver, while doing that
197      - change (improve?) discretization of stress computations for both
198        cgrid-lsr and evp solver
199      - add a new routine to compute strain rates
200      - the above changes lab_sea results
201      - add no slip conditions for evp solver (off by default), lsr-version
202        may follow
203      - fix exchange for shear at Z-points (does not change lab_sea)
204      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
205        (to force the user to pick a time step since there is not "safe" way
206        of choosing it)
207      - add principal stress diagnostics
208      - rearrange fields for evp a little to avoid having to call a: too many
209        exchanges and b: exchanges for stress trensor components which we do
210        not have.
211      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
212        of evp, complete rewrite for lsr case (latter is does not yet work
213        in all cases)
214    o pkg/kpp: add code to have mixing in shelf ice caverns
215      - add myThid to all kpp routines (long overdue)
216    
217    checkpoint59
218    o pkg/exf:
219      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
220        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
221      - move exf header files from lower_case.h to UPPER_CASE.h ;
222        add missing cvs Header & Name
223      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
224      - add namelist param. selectStressGridPosition, exf_monFreq
225      - retire many _CLIM routines, and remove data.exf_clim
226        + params moved to data.exf
227        + climsst, climsss now handled by exf_set_gen, i.e.
228          climss?period=0 refers to constant field,
229          climss?period=-12 to monthly forcing
230      - split up namelists in data.exf
231    o pkg/seaice:
232      - remove seaice_exch and seaice_exch_uv
233      - remove superfluous exchange of theta
234      - add myThid to seaice_budget_ocean/ice
235      - add new interface for atmospheric wind forcing (C-grid only)
236        + new routine
237        + two new field (taux, tauy for stress over ice)
238        + removed one global field (DAIRN) for C-grid case only
239    o pkg/thsise
240      - 2nd set of modifs for thsice adjoint in conjunction with exf
241    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
242    
243    checkpoint58y_post
244    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
245      vertical diffusivity, similar to that in MOM4; turned on using
246      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
247      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
248    o Added capability for 3D specification of background vertical diffusion
249      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
250      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
251      "data" file that contains the 3D vertical diffusivity coefficients.
252    o ice dynamics (pkg/seaice) with thsice thermodynamics:
253      - add code within pkg thsice to advect & diffuse sea-ice fields
254      similar to (and will replace) what has been added in  seaice_advdiff.F,
255      but: - conserving Mass, Heat & Salt.
256           - better when using non-linear advection scheme (not yet fully tested)
257           - can also be used in atmospheric set-up (for now, only the diffusion).
258    
259    checkpoint58x_post
260    o IO option for global-file compact format:
261      - add options when generating topology (utils/exch2/matlab-topology-generator)
262      - add I/O capability (pkg/mdsio).
263      - adapt utils/matlab/rdmds.m to read this format.
264      for now long-line format not yet supported by pkg/mdsio (& exch2).
265    o shelfice: add a few diagnostics
266    
267    checkpoint58w_post
268    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
269      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
270      (and replace horiVertRatio in NH code).
271      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
272                         and tutorial_plume_on_slope (sensitive to truncation)
273    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
274      directly to drive seaice model (C-grid only)
275    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
276     - reintroduce computation of wind from stress,
277     - compute tau (in exf_bulkformulae.F) from windstress averaged to
278       mass points to avoid tau = 0
279     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
280    o rdmnc.m: make it work with "global" files created with gluemnc
281    o rdmnc.m : some improvements in dealing with singleton dimension
282      (tested on all testreport mnc output files).
283    o genmake2: disable pkg/profiles if netcdf test fails.
284    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
285    o move call to cal_readparms up to make calendar parameters/variable available
286      to all packages
287    
288    checkpoint58v_post
289    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
290      useDynP_inEos_Zc tested.
291    o pkg/exf: changes to properly interpolate/mask/scale initial fields
292    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
293      and portions thereof.  See read_cs.txt for description and examples.
294    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
295      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
296      following the great-circle arc between those 2 points.
297    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
298      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
299    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
300     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
301     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
302     - still needs work (not working with some options ; efficiency to improve)
303       and serious testing.
304     - use this scheme for temperature & salinity in 2 advection test exp.:
305       advect_xy & advect_xz, respectively.
306    
307    checkpoint58u_post
308    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
309    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
310    o testreport: add option "-skipdir" to skip some test.
311    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
312      momentum calculation.
313    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
314    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
315      remove checkpoint.F and the_correction_step.F (no longer used);
316      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
317    o add option (linFSConserveTr) to correct for tracer source/sink due to
318      Linear Free surface
319    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
320    o pkg/thsice: fix reading mnc-pickups
321    
322    checkpoint58t_post
323    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
324    o pkg/mdsio:
325     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
326       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
327       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
328     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
329     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
330       either MDS_READ_FIELD or MDS_WRITE_FIELD )
331     - new S/R (to replace MDSWRITEMETA), which allows to write more
332       informations (variable names, time ...) to meta files.
333     - modify rdmds.m to give back the meta file content.
334    o pkg/diagnostics: change vertical interpolation to be safer, and more
335       flexible (define p-levels to interpolate to in data.diagnostics);
336      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
337       diagnostic pointer.
338    o pkg/seaice: more cleaning up of seaice_growth, added many comments
339    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
340    o fix multi-category seaice:
341     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
342       SEAICE_MULTICATEGORY
343     - fix short wave heat flux
344    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
345       and allow to use EVP solver. Change forward lab_sea: test both EVP
346       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
347    o Initial check-in of lab_sea adjoint
348      (very similar to natl_box_adjoint/code_seaice)
349      * used C-grid and EVP solver
350      * used KPP, GM/Redi
351      * uses inAdExact=.TRUE.
352      * gradient checks fail for both ADM and TLM
353        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
354        f.d. gradients actually seem more problematic than ADM, TLM gradients;
355        issue is related to forward mismatch between g77 an ifort
356    o pkg/seaice: overhaul of thermodynamics
357     - growth.F and groatb.F are replaced by new routine seaice_growth.F
358     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
359     - move a few global fields out of SEAICE.h into seaice_growth.F and
360       make them 2D (FICE/QNETO/ ...)
361     - remove FO (it is the same as QNETO)
362     - introduce a few local fields to avoid modifying external fields such
363       as atemp, etc.
364    
365    checkpoint58s_post
366    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
367      changed exf_set_gen.F so that
368        genperiod=0 means input file is one time-constant field and
369        genperiod=-12 means input file contains 12 monthly means
370    o CG2D: use pre-computed solver main-diagonal (stored in common block);
371      this affects truncation error ; generate new output file for exp. which
372      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
373        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
374        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
375        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
376        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
377        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
378    o start implementation of deep-atmosphere and anelastic formulation
379    o verification: remove 2nd copy of input files and use script "prepare_run"
380      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
381    o mom_common/vecinv/fluxform: fix a few initialisation isssues
382    o profiles: fix for multithreaded case
383    
384    o diagnostics: rename few diags:
385      s/'PRESSURE'/'RCENTER '/g
386      s/'TICE    '/'oceFreez'/g
387      s/'TAUX    '/'oceTAUX '/g
388      s/'TAUY    '/'oceTAUY '/g
389      s/'SWFLUX  '/'oceQsw  '/g
390      s/DIFx/DFxE/g
391      s/DIFy/DFyE/g
392      and add few ocean-forcing diagnostics:
393      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
394    o modifications to pkg/seaice/growth.F and budget.F, which change results of
395      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
396      as actual snow thickness.  It now refers everywhere to effective snow
397      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
398    
399    checkpoint58r_post
400    o modifications to pkg/seaice/growth.F, which change results of
401      lab_sea experiment: fixes pertain to melting snow over open water, to
402      masking EVAP under sea ice, and to using the correct AREA variable for
403      computations of EVAP, PRECIP, HSNOW, and GHEFF
404    o add ability to read bathy, salt, and theta using MNC (off by def)
405    o add flooding algorithm and advection of HSNOW for pkg/seaice;
406      both are turned off by default and do no change any results
407    o seaice advection with pkg/thsice: a step toward the use of non-linear
408      advection scheme, but #ifdef or commented out for now (requires more EXCH).
409    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
410      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
411      in natl_box (affects results @ truncation level: update output.txt)
412    o multi-threading and IO:
413      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
414      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
415        (needed to work with SingleCpuIO): tested in all verif. exp.
416    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
417      affects the results (but none of the verification test uses this scheme).
418    o Adding some pkg/diagnostics capability to pkg/seaice
419      (will certainly be subject to changes)
420    o ctrl: adding new control variables:
421      lwflux, lwdown, evap, snowprecip, apressure, runoff
422    
423    checkpoint58q_post
424    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
425      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
426      high_res_cube configuration by 4% on Columbia.
427    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
428      add (in global_with_exf/code) a version of EXF_INTERP_READ without
429      dynamical allocation (seems to work in multi-threaded).
430    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
431      single CPU io) so that TAF does not have to see EESUPPORT.h
432    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
433    
434    checkpoint58p_post
435    o obcs: stop if obcs is used with useCDscheme = .true.
436    o shelfice:
437     - fix a sign error so that no slip at shelfice interface works
438     - remove stop for combination non-hydrostatic code and shelfice. That does
439       not mean, that the results are correct, but at least they are numerically
440       stable
441    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
442    o added adjoint exch routined for all exch*3d* routines
443      and updated flow directives
444    
445    checkpoint58o_post
446    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
447      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
448    o change controling S/R for writing pickup file (new S/R do_write_pickup)
449      and clean-up reading/writing of pickup files.
450    o fix local version of read/write pickup (NH part) in rotating_tank/code
451    o simplify EXCH interface:
452     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
453     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
454    o added the regrid package
455    o shelfice:
456     - add a simple boundary layer scheme to reduce noise
457     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
458    
459    checkpoint58n_post
460    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
461       local variable (not in common block).
462    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
463      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
464      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
465        to work with SingleCpuIO.
466    o add "_d 0" to real constant of pkg/cfc subroutines ;
467       update exp. cfc_exemple & tutorial_cfc_offline output files.
468    o multi-threading and IO:
469      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
470        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
471      - barrier before and after reading.
472      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
473      - avoid using MDS_WRITELOCAL for LAND pkg output.
474      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
475        common-block variables ; Allows multi-threading with master-thread IO.
476    o change default MAX_NO_THREADS from 32 to 4 ;
477      and stop cleanly when MAX_NO_THREADS is too small.
478    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
479    
480    checkpoint58m_post
481    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
482       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
483    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
484       keep global_ocean.90x40x15 (for AD testing) with former secondary test
485       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
486    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
487        add MITgcm_tutorials (= code + all the tutorials)
488    o ecco, option to compute cost for total ssh (mean+anom)
489    o consistent with addition of ptracer and ssh in pkg/profiles
490    o profiles: adding ptracer and ssh
491    o testreport: change multi-test output-file name
492      (from output.txt.{name} to output.{name}.txt)
493    o profiles: now ok for mutli-tiles case
494    o seaice: add 4 parameters for different advection schemes for area,
495      (effective) seaice thickness, enthalphy, and snow height. Their default
496      is the standard parameter SEAICEadvScheme
497    o calc_gw:
498     - add cosFacU in zonal viscous flux (harmonic.visc.).
499     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
500       of tutorial_plume_on_slope.
501    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
502    o calc_gw: true flux-form, account for horizontal grid spacing.
503      update rotating_tank results, but not plume_on_slope (affected at
504      truncation level, 11 digits).
505    
506    checkpoint58l_post
507    o calc_gw:
508     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
509     - remove side-drag for now (need to fix it); update plume_on_slope results.
510     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
511    o commit code to make SST/SSS weights spatially variable
512      (based on either variable in-situ or variable initial T/S weights)
513    o pkg/ecco:
514      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
515        now based on horizontally varying weights wthetaLev, wsaltLev
516      * cost_averagesflags now returns year indices in addition to day, month
517      * sflux balance is performed on annual basis
518        (sflxumm, sfluxmm2, bal_sfluxmm)
519      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
520        including separate counting and multipliers
521    o pkg/rbcs
522      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
523    
524    checkpoint58k_post
525    o testreport:
526     - always build in dir. "build" (if not there, mkdir build instead of building
527       & running in input)
528     - run in dir run (if it exists), in build otherwise.
529     - call prepare_run (if input/prepare_run exists)
530     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
531    o pkg/exf modifications to interpolation and rotation routines for more
532       reasonable treatment of North Pole singularity: for tracers North Pole
533       value is set to northernmost zonal-mean value, for zonal velocity it is
534       set to zero, and for meridional velocity it is set to northernmost value.
535    o pkg/exf/exf_check_range.F
536     - add tile index to diagnostics and move stop statement to the very
537       end of the routine.
538    o pkg/diagnostics: (diagnostics_main_init.F)
539      define title of isomorphic variables according to the current config.
540    o pkg/thsice with pkg/seaice dynamics:
541    - fix domain of computation (interior only, required for exf) and do exchanges
542    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
543    o towards a standard way of dealing with multi-threading in MONITOR
544      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
545    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
546       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
547    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
548    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
549    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
550       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
551    o tracer advection:
552     - clean-up and simplify calc_common_factors.F
553     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
554       advection subroutine (but still not used within DST advection S/R)
555    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
556    
557    checkpoint58j_post
558    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
559      from file (collects calls previously in FORWARD_STEP)
560    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
561    o adjoint store dir. adjusted accordingly
562    o genmake2
563      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
564    
565    checkpoint58i_post
566    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
567      on wind stress (SEAICEstressFactor defaults to 1.)
568    o Total number of Timers is finite (<=40): comment out 2 non-essential one
569      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
570    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
571      on CS-grid: no longer loosing mass.
572    o exf & curvilinear-grid: no longer modify longitude xC & xG.
573    o pkg/ggl90: fix sloppy output and fix a bug
574    o pkg/seaice: added SEAICEuseEVPpickup parameter
575      - Set to false in order to start EVP solver with
576        non-EVP pickup files when using SEAICEuseEVP
577      - fix sign error in diffusion in seaice_calc_rhs
578    
579    checkpoint58h_post
580    * Modifications for bottom topography control
581      o replace hFacC by _hFacC at various places
582      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
583      o add non-self-adjoint cg2d_nsa
584      o update autodiff support routines
585      o re-initialise hfac after ctrl_depth_ini
586      o works for 5x5 box, doesnt work for global_ocean.90x40x15
587    * Adding verification for 5x5 box (4-layer) bottom topography control
588    
589    checkpoint58g_post
590    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
591       used for mean seasonal cycle, mean diurnal cycle); add an example
592       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
593    o pkg/ggl90:
594      - add parameter (minimum surface kinetic energy)
595      - fix bug (avoiding division by zero)
596    o couple pkg/thsice to pkg/seaice:
597      - modify advection in seaice to accomodate new scalar fields to be advected
598      - only muliDimAdection scheme work with seaice/thsice
599      - mapping of thsice-variables to seaice-variables, back and forth
600      - does not break the verification experiments, but does not give the
601        desired results either
602    o pkg/seaice
603      - make (default) second order advection a bit less confusing?
604    
605    checkpoint58f_post
606    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
607      to pkg/seaice):
608      - new routines thsice_map_exf and thsice_get_exf provide the interface
609      - add an additional formal parameter to thsice_solve4temp
610    o pkg/exf:
611      - add new fields wspeed, snowprecip (to be able to couple to thsice)
612      - correct Stefan-Boltzmann constant
613      - new parameter for longwave surface emittance
614      - separate some stuff from exf_bulkformulae into new routines  
615        exf_radiation, exf_wind
616      - add new parameters and constants: longwave emissivity for ocean, ice
617        and snow, evaporation parameters over ice
618      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
619        either wind from stress or stress from wind
620    o pkg/thSIce:
621    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
622    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
623       and THSICE_CALC_THICKN
624    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
625    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
626      to make debugging easier.
627    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
628    o pkg/bulk_force:
629      - clean-up comments and parameters ;
630      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
631    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
632      generate new output for test-experiment: aim.5l_cs.thSI
633    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
634      testreport accordingly
635    
636    checkpoint58e_post
637    o SEAICE_CGRID adjoint done
638    o R_STAR adjoint implemented.
639      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
640      * need to sort out init. of h0facc, etc.
641    o Make pkg/profile fully independent of ecco,cost, etc. stuff
642      to be able to use it in pure forward.
643    
644    checkpoint58d_post
645    o upgrade simple test-experiment to tutorial example:
646     step.1: duplicate the experiment and (step.2) will remove the old copy.
647      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
648      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
649      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
650      tutorial_global_oce_biogeo    <- copy of dic_example
651      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
652      tutorial_plume_on_slope       <- copy of plume_on_slope
653      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
654      tutorial_global_oce_optim     <- empty for now (David ?)
655      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
656     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
657    o correct a sign problem in cost_scat.F
658    o obcs and ptracers: fix boundary conditions for advections schemes
659      with larger stencil
660    o thsice adjoint: start
661    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
662      completeness
663    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
664      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
665    o ptracers adjoint:
666      * avoid extensive recomputatations
667      * fix missing re-init. of gptr (missed by TAF)
668    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
669      me to turn off the excessive output to STDOUT that this package produces
670    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
671      and add those terms in Vector-Invariant formulation.
672    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
673      if the control period (xx_hfluxperiod etc) is 0
674    o in profiles pkg, clean routines and fix details
675    o in ecco pkg, reading ssh data:
676      fix problem in case the model does not start at iter0=0
677    o fix mnc-pickup/restart for ptracers
678    o new package prifiles:
679      code to compute profile-based cost by Gael Forget
680      (modifs in ecco, ctrl, autodiff)
681    o Benign bug fix in initialization (spotted by M. Mazloff) of
682      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
683    
684    checkpoint58c_post
685    o adjoint: finish NLFS adjoint and provide reference output in
686      verification/global_ocean.90x40x15/results_ad_nlfs
687    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
688      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
689      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
690      with SEAICE_CGRID defined.
691    o move calendarDumps from "data" to "data.cal" and clean-up the code
692      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
693    o add useEXF & useCAL flags (for now, set in hard-coded way)
694    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
695      (were missing in NH mode, and wrong in quasihydrostatic mode).
696      waiting for Chris updated version of calc_gw to add those CALLs.
697    o fix bug in quasihydrostatic S/R ;
698      add a test for this option: global_ocean.90x40x15.qshyd
699    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
700      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
701    o add on/off flag useOffLine for package OFFLINE
702    o seaice:
703      - modify advection so that it works also on the C-grid
704      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
705        problem in multi-tile runs with C-grid
706      - add flags for clipping ice velocities and/or masking solver forcing
707      - fix drag (ocean on ice) formulation and a bug that caused noise in the
708        C-grid solver
709      - added a few comments to seaice_diffusion.F
710      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
711        are now exclusive)
712      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
713        required re-ordering the code a little:
714       + make DAIRN global variable (defined in SEAICE)
715       + move computation of the viscosities eta and zeta into a new separate
716         routine (because I need to recompute them in seaice_ocean_stress.F)
717    
718    checkpoint58b_post
719    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
720      update output.txt of exp. aim.5l_cs.thSI
721    o various mnc cleanups and improvements:
722      + shrink lookup tables by factor of ~4
723      + better error reporting when running out of lookup space
724      + able to handle longer path/file names (up to 500 chars)
725    o adjoint:
726      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
727      - TBD: "hidden" mom_vecinv recomp. in dynamics
728    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
729     (allow to differentiate between forcing components using new integer flags:
730      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
731     and add new flag to put Dissipation tendency out of Adams-Bashforth.
732    o ecco
733      - enable trend removal from SSH anomaly obs.
734    o adjoint
735      - a fix for PmEpR when #undef EXACT_CONSERV
736      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
737      - try to fix "hidden" recomp. in forward_step for NLFS
738        (NLFS seems broken sometimes after I checked it in)
739    o seaice:
740     - add c-grid version of the dynamic solver:
741       + three new routines that are the c-grid substitute lsr, dynsolver
742         and ostres
743       + put a few fields that were local to dynsolver into global common
744         blocks, so that I can move the computation of stresses etc into
745         seaice_lsr (saves coding but may break the adjoint).
746     - replace more hardwired parameters by runtime parameters
747     - add ice masks that mask the rhs of the implicit solvers where there
748       is no ice (commented out in seaice_dynsolver, because i am not sure
749       if this works properly), eventually this should replace the clipping
750       of ice velocities in seaice_dynsolver to +/-40cm/s.
751    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
752      include it only where its needed
753    o move balancing of fluxes before the call of external_forcing_surf
754    o seaice:
755      - correct units of turning angles (now they are really in degrees)
756      - move computation of GWATX/Y out of main routine into dynsolver
757      - initialize GWATX/Y in seaice_init
758    o Apply mask on Fresh-Water flux (needed for SSH forcing).
759      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
760    o seaice: add runtime flags for turning angles (default to zero)
761    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
762      and trend from exf forcing and ctrl control adjustments
763    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
764      (since checkpoint57x_post)
765    o change the default rotation period to 86164.s = the Earth rotation
766    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
767      and based on a reference stratification. Tested within hs94.cs-32x32x5.
768    o seaice advection: add code for choosing between the default (2nd order
769      central differences) and multiDim advection schemes provided by
770      pkg/generic_advdiff
771    o seaice:
772      - removed all references to SEAICE_GRID.h fields from
773        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
774        (cubed-sphere configuration will change a little)
775      - grid computations in seaice_init are obsolete now.
776      - cleaned up code a little so that is easier to read (hopefully).
777      - added new (better?) discretizations of default advection and diffusion
778        (turn on with SEAICEuseFluxForm)
779      - replace 1 in 3d global fields by kSurface in growth.F
780      
781    checkpoint58a_post
782    o seaice:
783      - bug fix in advect.F
784    o shelfice:
785      - separate shelfice load anomaly from pload (breaks with time
786        dependent forcing), => introduce constant field shelficeLoadAnomaly.
787        Its default is 0., but it may be computed more cleverly from (unknown)
788        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
789        done offline. A good approximation of the pressure load anomaly is
790        necessary to avoid large initial adjustment processes underneath
791        deep-reaching shelfice.
792      - small fix in ISOMIP shelfice_thermodynamics
793      - add more sophisticated thermodynamics of Hellmer (1989), this is
794        now the default
795      - give a few constants more intuitive names
796    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
797      if bulk formulae are used in long integration (especially EmPmR). Turn
798      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
799      if balancePrintMean, the imbalance that is substracted is printed to
800      STDOUT.
801    o fix bug (typo) in obcs_apply_eta.F
802    o add a new package shelfice which enables us to model the circulation
803      underneath shelf-ice with draughts of hundreds of meters.
804     - works
805     - to do: + include improved thermodynamics
806              + check whether kSurfC (from model/inc/SURFACE.h) can be used
807                instead of new field kTopC
808              + can we use topoFile, Ro_surf and existing code in ini_depth.F
809                instead of new field R_shelfIce and new code in ini_depth.F
810                and ini_mask_etc.F?
811              + adjust vertical mixing schemes?
812    o seaice pkg:
813     - add a cpp-flag to include a simple formula for a salinity dependent
814       freezing point of sea water at the surface
815     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
816       meridional stresses are now different (and hopefully correct)
817    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
818       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
819       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
820    o pkg/diagnostics: add options and parameters for regional-statistics
821       diagnostics ; define regions by reading a region-mask from a file
822       (might add other options later)
823    o pkg/bulk_force:
824     - add option and parameters to use AIM surface-flux formulae.
825     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
826       others forcing fields (defined in PARM05, parameter file "data") are loaded
827       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
828     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
829     - use the right EXCH call for uwind,vwind (to work on CS-grid).
830     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
831       and parameters (note: calcWindStress replaces .NOT.readwindstress).
832     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
833    
834    checkpoint58
835    o add "--embed-source" option to genmake2 which, when the supporting
836      tools can be compiled (as determined by genmake2) will turn on the
837      embed_files package which then embeds the entire MITgcm source code
838      (*.[fFhc] + Makefile) used for the build within the executable
839      - requested by CNH but off by default
840      - adds a paltry <9MB to the mitgcmuv executable in most cases
841      - only writes the output when useEMBEDSRC in eedata is true
842    o clean up 3-dim. relaxation codes:
843      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
844      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
845      * Thanks to Tom Haine for testing!
846    
847    checkpoint57z_post
848    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
849      affects output (@ truncation level) of exp. plume_on_slope ; updated.
850    o fix the pickup behavior for obcs in combination with ptracers
851    o fix a bug in ptracers_external_fields_load
852    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
853      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
854    o transfered surface NH pressure to eta field (if exactConserv).
855    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
856         and update lab_sea output.txt file.
857    o completing 3-dim. relaxation code: additional term
858         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
859      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
860      * At compile time, in "EXF_OPTIONS.h" set
861          #define  ALLOW_CLIMTEMP_RELAXATION
862          #define  ALLOW_CLIMSALT_RELAXATION
863      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
864          tauThetaClimRelax3Dim = 15552000.0,
865          tauSaltClimRelax3Dim  = 15552000.0,
866      * 3 cases:
867          1) Use a constant-in-time 3-dim. field
868          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
869          3) Real-time relax. to time-evolving prescribed field
870    o Adding Laplacian-type smoothness constraint on
871      initial and boundary (forcing) controls (ic, bc)
872      * enable at compile-time via
873        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
874      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
875      * Absolute scale somewhat unclear so far
876      * no area weighting was included since no other cost term does so far
877    
878    checkpoint57y_post
879    First step for a NLFS adjoint
880    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
881    o new init. routines for calc_r_star, calc_surf_dr
882    o still need to deal with ini_masks_etc
883    o testreport seemed happy
884    checkpoint57y_pre
885    
886    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
887    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
888    o add new offset feature to offline pkg (plus minor cleanup)
889    o cfc fixes for final year of integration
890    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
891      be in GCHEM_OPTIONS).
892    
893    checkpoint57x_post
894    o fix testreport Pb in multiple test experiment.
895    o cleanup our namelist syntax in verification:
896      - make it more F95 standards compliant (some work still needed)
897      - allows the vast majority of our tests to work with gfortran
898    o Non-Hydrostatic:
899     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
900     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
901    o Allow to apply AB on T,S rather than on AB(gT,gS):
902     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
903     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
904       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
905     - need a "clever" read_pickup to restart from the other AB formulation
906    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
907    o remove some unused variables (reduces number of compiler warnings)
908    o adjoint
909      * Disable useVariableViscosity for adjoint for time being
910        (there are a number of extensive recomputations)
911      * Initialize certain variables needed for adjoint
912    
913    checkpoint57w_post
914    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
915                 fix the singleCpuIO RS version of MDSWRITEFIELD
916       and add a WARNING if using globalFiles=T with multi-processors.
917    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
918      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
919    o tracer advection scheme:
920      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
921       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
922       was not very convenient).
923      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
924       (further tests needed for the implicit DST & Flux-Limiter schemes).
925    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
926      and sRef for convenience, handy, when you want to initialize
927      ptracers in a large domain with a constant non-zero value. Also,
928      untangle ptracers_init.F a little.
929    
930    checkpoint57v_post
931    o change dome exp. to use variable viscosity in side-drag terms.
932    o remove all the files from the cfc_offline test since they are now
933      incorporated into tutorial_cfc_offline which has been producing
934      identical results for a few days of testing
935    o add new parameter: sideDragFactor to enable half-slip-side BC
936      and change side-drag S/R to use viscosity from mom_calc_visc
937      (can switch back by setting sideDragFactor=0.); affects results at
938      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
939       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
940    o vorticity & strain are now computed without masking, to account for
941      no-slip-side BC in variable viscosity calculation ; mask is applied
942      anyway later on, before computing advection/coriolis terms.
943    o modify exp4 to test new obcs support for reading from external files
944      and for passive tracers
945    o fix behavior of ptracers_monitor when monitor output is written to a
946      netcdf-file; still not independent of monitor.F (writes in the same
947      file).
948    o change default value of tRef (put a uniform, meaningful value for ocean
949      & atmos) and initialize sRef (was missing, as Martin mentioned).
950    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
951      to be proportional to enstrophy dissipation length.  Thus,
952       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
953      This is now consistent with Smagorinsky and with the manual.
954    
955    checkpoint57u_post
956    o OBCS and PTRACERS: add open boundary support for passive tracers
957      - either use homogenous (pseudo) v.Neumann conditions or prescribe
958        OB-values from file; this is not different from the way theta and salinity
959        are treated
960      - however, Orlanski-radiation conditions are not supported, and the model
961        will stop if you use pTracers and Orlanski at the same time.
962      - beefed up the rountine obcs_external_fields_load: now only those open
963        boundary values are overwritten with values from files for which there
964        are really files, otherwise the OB-fields remain untouched. This makes
965        it possible to use different OBs at different ends of the domain (as
966        with EXF)
967    o reduce number of exch calls in shap_filt (s2).
968    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
969      truncation level) 4/5 MLAdjust test results (11&12 digits match).
970    
971    checkpoint57t_post
972    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
973    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
974      same truncation, independent of the face number: affects affects several
975      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
976    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
977      note that biharmonic viscosity + no-slip was not tested in any experiment.
978    o fix bug in non-linear free-surf side-drag ; generate new output for
979      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
980    o make mnc honor the writeBinaryPrec flag for most kinds of output
981    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
982    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
983      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
984    o add brackets in multi-terms sum to get same truncation, independent of
985      the face number (manage to get exactly same value of gU,gV at the cs-edge)
986      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
987    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
988      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
989      a maximum grid-scale Reynolds number.  Also, changes all length calculations
990      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
991      Suggested values of viscosity parameters found in mom_calc_visc.
992      Many new viscosity diagnostics available.
993    
994    checkpoint57s_post
995    o Add clearing-house for viscosity calculations, mom_calc_visc and
996      correct numerous bugs in LeithD and Smagorinsky discretizations.  
997      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
998      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
999      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1000      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1001      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1002      ViscAhStrain and viscAhTension are now retired.
1003    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1004    o In response to JMC's bug report, genmake2 now ignores any soft-links
1005      that it finds in the *current* directory when searching for files.
1006      Soft-links found in any other source directories will still work as
1007      they did before.
1008    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1009      a C routine to unlimit the stack size
1010    o mnc-ify pkg/aim snapshot vars
1011    o mnc-ify pkg/land as requested by Daniel
1012    o various changes to mnc including:
1013      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1014      - output can now be grouped so that all files within a group
1015          change the ITER portion of their names in lock-step together
1016      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1017          and works with both EXCH1 and EXCH2 (but needs more testing)
1018      - writing works for all verification test cases w/ g77 on Linux
1019    
1020    checkpoint57r_post
1021    o make MNC variable initialization happen earlier
1022    o add diagnostics for (almost) each term of the momentum Eq.
1023    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1024    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1025    o remove MINIMAL_TAVE_OUTPUT option ;
1026      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1027    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1028      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1029    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1030    o add time-dependent SST, SSS control
1031    o cost terms in ecco/ modularized (new cost_generic.F)
1032    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1033    o new infrastructure for seaice model vs. obs misfits in seaice/
1034      * driver from the_main_loop.F is seaice_cost_driver.F
1035      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1036      * gradient check in Exp. 6a of natl_box_adjoint/
1037    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1038      (see README file)
1039    
1040    checkpoint57q_post
1041    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1042    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1043      - bug was reported by Jean-Michel and Ian Fenty
1044    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1045      update exp. cpl_aim+ocn output.
1046    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1047      Needed for high-res. runs with large global files
1048      to be able to limit tapelev size
1049    o Changed some tests for adjoint:
1050      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1051      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1052      * global_ocean.90x40x15/ back to default 3-level checkpointing
1053    o Modifications to enable scripted COMMON to MODULE conversion
1054      * verification/OpenAD/code/ has necessary scripts and description;
1055      * converts, compiles and runs successfully;
1056    
1057    checkpoint57p_post
1058    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1059    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1060      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1061    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1062    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1063      (was already the case for dissipation with mom_vecinv,
1064       and also the case for grad.PhiHyd when staggered-timeStep)
1065      This will allow to put dissipation out-off the AB time-stepping.
1066     Unfortunately, affects truncation error. Update output of exp. that "fails"
1067      (cg2d matching number) and leave the others for later: front_relax(10),
1068      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1069      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1070    
1071    checkpoint57o_post
1072    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1073      (2) its ready to be documented during the 20050801 DocFest
1074    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1075      for ideal_2D_oce and lab_sea on linux_ia32_g77
1076    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1077      in global1x1_tot/code_seaice_adj to access indices 32, 33
1078      (worth another tag)
1079    
1080    checkpoint57n_post
1081    o adding precip control xx_precip 32
1082    o adding swflux control xx_swflux 33
1083    o Replacing 10 forcing penalty cost routines by 1 generic.
1084    o Implementing partitioning in time-mean and variable adjustment
1085      for atmos. state.
1086    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1087    o in natl_box_adjoint:
1088      * updated exp 1 to 10
1089        (but does not have time-mean vs. variable split results yet)
1090    o updated global1x1/*_seaice_adj/
1091      to incorporate latest changes
1092    o enable useSingleCpuIO for mdsio vector routines
1093      (applies in particular to tapelev I/O)
1094    o removed inefficient K-loop in all active_file*control*.F
1095    
1096    checkpoint57m_post
1097    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1098      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1099    o pkg/exch2: filling of face-corner halo regions is optional
1100      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1101    
1102    checkpoint57l_post
1103     tag before updating tutorials (pre-release-2)
1104    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1105       for output and interpolation of input fields onto model grid)
1106    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1107       Affects results of exp. rotating_tank ; update output.txt.
1108    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1109          and taking the square quantity and/or using a fraction-weight field.
1110    o fix aim_diagnostics_init.F mate numbers.
1111    o add mnc output capability to diagnostics/diagstat and update
1112      our cvsignore files for the ACSII output generated
1113    
1114    checkpoint57k_post
1115    o lab_sea now uses diagnostics package and provides a suite of
1116      new EXF diagnostics output.
1117    
1118    checkpoint57j_post
1119    o exf
1120      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1121        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1122        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1123      * extended diagnostics output
1124        - now includes all EXF variables
1125        - hs, hl moved to common block
1126        - separate S/R for diagnostics, called after ctrl vector is added
1127        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1128        - EXFqnet contains true Qnet (i.e. includes qsw)
1129      * updated verif. lab_sea, global_with_exf
1130      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1131        to ensure that diagnostics sees a true EXFqnet
1132    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1133    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1134      several times with different frequencies.
1135    o mnc-ify the thsice package as requested by Daniel Enderton
1136      - the monitor--MNC output needs work
1137      - many attributes need to be added (most are currently blank)
1138    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1139      - many attributes need to be added (most are currently blank)
1140    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1141    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1142    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1143      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1144         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1145    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1146     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1147    
1148    checkpoint57i_post
1149    o Diagnostics package was changed: diagnostic allocation is now deactivated
1150      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1151    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1152      add 1rst Order upwind vertical Shear.
1153    o add a quick fix for A/B checkpointing in OFFLINE mode
1154    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1155      end-run around the C/Fortran linking horror in eesup/src/timers.F
1156    o added pkg/runclock: allows user to terminate run based on wall clock
1157    o added non-hydrostatic scaling parameter: nh_am2
1158    o pkg/my82: futile attempt to make results compiler-independent by adding
1159      some "_d 0", etc. no effect.
1160    o for mnc output, fill the 'T' coordinate var with myTime and create a
1161      separate 'iter' variable for iteration count
1162    o pkg/diagnostics:
1163      add new capability: output of Global/Regional & per-level statistics ;
1164      tested against monitor output (including land & thSIce) on various exp.
1165    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1166    
1167    checkpoint57h_done
1168      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1169      data.diagnostics, data.gchem, data.ptracers) is done.
1170    
1171    o pkg/diagnostics: prepare for Global/Regional statistics.
1172      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1173    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1174      and rename it: DIFFERENT_MULTIPLE
1175    
1176    checkpoint57h_post
1177    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1178    o pkg/diagnostics: change output frequency, now in seconds (instead
1179      of Nb of iterations). This requires to change data.diagnostics.
1180    checkpoint57h_pre
1181    
1182    o in mnc, let the user create the output dir if both mnc_outdir_date
1183      and mnc_outdir_num are false
1184    o add fflags() to pkg/diagnostics which allows one to specify, on a
1185      per-file basis, the file precision [default behavior is unchanged]
1186    o added diagnostics to pkg/kpp, including computation of mixed layer
1187      depth based on a temperature/density criterion
1188    o updated verification/natl_box to test the new pkg/kpp diagnostics
1189    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1190    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1191    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1192      not mnc -- this mistake was found by JMC and is now corrected
1193    
1194    checkpoint57g_post
1195    o add Adams-Bashforth 3rd Order time stepping:
1196      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1197      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1198    checkpoint57g_pre
1199    
1200    o make lambda[Theta,Salt]ClimRelax spatially varying
1201      (default remains spatially uniform constant based on tau)
1202    o added new control variables
1203      * init. uVel, vVel, etanN
1204      * lambda[Theta,Salt]ClimRelax
1205    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1206      (suggested by G. Forget)
1207    
1208    checkpoint57f_post
1209    o add parameter "baseTime" = model base time = time at iteration zero
1210      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1211      account for baseTime shift
1212    o move Coriolis arrays from PARAMS.h to GRID.h
1213    checkpoint57f_pre
1214    
1215    o mnc-ifying the seaice package
1216    o introduced an alternative length scale calculation for use in the limiting
1217      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1218    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1219    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1220      as well as grad(vort3).  Made it compatible with both approximate form
1221      for the cubed sphere and full form of these gradients.  Added flag
1222      useFullLeith to select between approximate and full form.  
1223    o add "d0" in getcon.F to reduce differences between compilers/platforms
1224      update output.txt of exp. fizhi-gridalt-hs
1225    o change port_rand funtion to allow to set the seed.
1226    o fix obscure MNC bug involving conversion between reals and integers
1227      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1228        new version is now more standards-compliant
1229    o adjoint-related modifications
1230      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1231      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1232      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1233    
1234    checkpoint57e_post
1235    o Adding eddy stress controls a la Ferreira et al.
1236    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1237    
1238    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1239      update output.txt of exp. fizhi-gridalt-hs
1240    o add more "Z" dimensions and associated coordinate vars to MNC
1241    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1242    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1243      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1244      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1245      months and years.  Requires pkg/cal.
1246    o diagnostics: add pickup functionality
1247      - off by default for backwards compatibility
1248      - current version only uses MDSIO -- MNC will be added
1249    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1250    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1251    
1252    checkpoint57d_post
1253    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1254    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1255      output from the diagnostics package
1256    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1257    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1258      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1259    o add coordinate variables to the MNC output from the diagnostics package
1260    o change MNC-flags default value: true when useMNC=TRUE
1261    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1262      the ability (off by default) to read the grid information using MNC
1263    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1264    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1265    o do snap-shot diagnostics at the middle of the time-interval (instead of
1266      at the end).
1267    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1268      new test for AIM with thSIce + slab-ocean
1269    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1270    o move state variable diagnostics to the beginning of the time step ;
1271      (note: still needs some work specially for snap-shot diagnostics)
1272      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1273    
1274    checkpoint57c_post
1275    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1276    o generate new output.txt files on faulks with g77 & the new -ieee option
1277    checkpoint57c_pre
1278    
1279    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1280      update output.txt of exp. global_ocean.90x40x15
1281    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1282      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1283    o add saltFlux(+File) forcing capability with periodicExternalForcing
1284    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1285    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1286    o improvements for the MNC output from DIAGNOSTICS:
1287      - correct handling of the unlimitied dimension
1288      - all dims now have associated coordinate variables
1289      - variables located at U, V, and Corner ("Z") points are now written
1290        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1291        *all* data points are output
1292    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1293    o added pkg/seaice/seaice_monitor.F
1294    o mdsio_readfield.F can now read files visible only to master MPI process.
1295    o pkg/seaice: some test code for ice-modified ocean stress
1296    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1297      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1298      spurious negative numbers for precipitation and humidity.  Will cause
1299      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1300    o pkg/ctrl/
1301      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1302        May be enabled via doPackDiag
1303      *  introduce z-scaling of
1304         + gradient (doZscalePack) and
1305         + control (doZscaleUnpack)
1306    o pkg/mdsio/
1307      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1308      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1309    
1310    checkpoint57b_post
1311    o simplify options in diagnostics_fill arguments (remove weird combinations)
1312    o fix MNC coordinate variables so that they now contain per-face index
1313      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1314      general, EXCH2 grids are only aligned to a "local" coordinate system
1315    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1316    o Implement instantaneous output within pkg diagnostics:
1317      setting a negative frequency in data.diagnostics produces
1318     "snap-shot" output (as opposed to time-average if freq > 0)
1319    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1320      NOTE: change ptracer diagnostics name: use 2 characters to work with
1321            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1322    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1323      becomes the coordinate variable for the 'T' dimension
1324    o add CF-style coordinate variables to MNC
1325      - just a first cut:  numbers are meaningless on the cubesphere and
1326        missing along the T axis but otherwise it works!
1327    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1328    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1329    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1330      this is based directly on what the model compute, so that the content of
1331      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1332    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1333    o clean up build options files for SunOS, in particular
1334      - remove -traditional from xmakedepend
1335      - change -xarch=v9 to -xarch=native for f77
1336      - restore use of make (not gmake)
1337      - add CC=gcc if using g77
1338    o changes per discussion of AM, JMC, & EH3 today:
1339      - move redundant "grid" variables out of "state" -- in preparation of
1340        creating proper CF-style coordinate variables and in recognition
1341        that any/all grid variables can be easily copied (eg. w/NCO) from
1342        the grid files into any of the other NetCDF files
1343      - *always* output grid variables with MDSIO (this will eventually be
1344        changed)
1345      - output MNC grid file if useMNC is true
1346    o every instance of _END_MASTER() has been found and replaced with
1347      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1348      preprocessors
1349    o re-arrange diagnostics pkg initialisation:
1350     - allow each package to extend the available diagnostics list
1351     - add some checking and fix small problems (multi-threaded, ...)
1352     - new S/R diagnostics_fill (replace fill_diagnostics):
1353       look through the short list of active diag. (instead of the long list)
1354       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1355    
1356    checkpoint57a_post
1357    o this set of changes restores TAMC compatibility
1358      tested for global_ocean.90x40x15 adjoint on trough
1359      (what a pain)
1360    
1361    checkpoint57a_pre
1362    o some modifs in tools/build_options for sunos
1363    o call ctrl_pack for ctrl at end for optimcycle=0
1364    
1365    checkpoint57
1366    o add horizontal bi-harmonic viscosity for vertical velocity
1367      - new parameter viscA4W (defaults to viscA4)
1368      - affects only non-hydrostatic code
1369      - to be done: no-slip lateral boundary conditions
1370    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1371    o implement Implicit Vertical advection for pTracers
1372    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1373      (implemented also for implicit vertical diffusion & advection)
1374    o OBCS: extend application of tracer open boundary conditions
1375      to a strip beyond the boundary of width Olx/Oly
1376    o add call monitor to TAF set of required calls (flow directives)
1377      and include in natl_box_adjoint
1378    o untangle a few ifdefs related to cost, ctrl, autodiff
1379      untangel a few ALLOW_ECCO_OPTIMIZATION
1380    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1381      (theta2, salt2 in ecco_cost_weights)
1382    
1383    checkpoint56c_post
1384    o OBCS as control variables
1385      - update ctrl_ad_diff.list, obcs_ad_diff.list
1386      - remove balance of obcs controls from default
1387      - fix index bug nobcs in ctrl_init
1388      - fix dummy fields filen in ctrl_pack
1389      - add dummy weights for obcs
1390    o lsopt: comment out fort.94 output
1391    o optim:
1392      - remove unnecessary header files
1393      - adjusted namelists
1394      - add xerbla.F to Makefile
1395    o exf:
1396      - multiple modifications of exf_check_range
1397      - unit change in exf_init_runoff from [m/year] to [m/s]
1398    o mdsio:
1399      - i/o-vector change debugLevel from debLevA to debLevB
1400    
1401    checkpoint56b_post
1402    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1403      is called from DO_THE_MODEL_IO
1404      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1405      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1406      - clean up PTRACERS_WRITE_TIMEAVE a little
1407    o add another verification experiment that tests both the cfc-pkg and
1408      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1409      reactive tendencies treated inline with regular timestepping
1410    o testreport previously did a lousy job of comparing small numbers, so
1411      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1412      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1413      testreport.
1414    o ptracers_monitor: bug fix for MPI
1415    
1416    checkpoint56a_post
1417    o GCHEM: finish reorganizating the package
1418      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1419        (introduces another 3D-array for each passive tracer, but only if
1420        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1421        gchemTendency is not needed because the timestep is done separately)
1422      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1423      - GCHEM is now---more or less cleanly---separate from PTRACERS
1424      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1425        so clear to me how that should be done in a general way.
1426    o CFC: improve formatting of output in CFC_ATMOS
1427    o PTRACERS:
1428      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1429        that ALL experiments with ptracers enable can be checked. This makes
1430        GCHEM_MONITOR obsolete.
1431      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1432        monitorFreq
1433      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1434    o add PTRACERS (PTR0[1-5]) to testreport output
1435    o exf_check_range:
1436      * default changed to .TRUE.
1437      * will check values for niter0 if debLevA, every timestep if debLevB
1438      * STOP in exf_check_range if 'out of range'
1439      * range chosen generous to allow for potential extema
1440      TBD: a version with stricter range
1441           permitted range would be runtime parameters
1442    o GMredi:
1443      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1444      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1445      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1446    o GCHEM:
1447      - move call to GCHEM_FORCING_SEP, so that it is now called before
1448        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1449      - introduced a useGCHEM runtime flag and applied it everywhere.
1450      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1451        this flag is now only visible within GCHEM-pkg routines.
1452      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1453        be replaced by a 3D array that is computed before thermodynamics; for
1454        this, the tracer ID iTracer had to be included into the parameter list
1455        of ptracers_forcing
1456      - set up forward_step to call gchem_forcing, that will replace
1457        gchem_forcing_int in ptracers_forcing
1458      - cleaning up
1459    o small cleaning of exch2: remove files that are also in eesupp/src
1460    
1461    checkpoint56
1462    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1463    o mnc: cleanup "full" files--fixes out-of-memory problem
1464    o ECCO-GODAE
1465      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1466      * fully merged and updated from SIO code
1467        windstress sign change affects
1468        - exf_inscal_[u/v]stress
1469        - sign of xx_tau[u/v] adjustments
1470        - signs in cost_scat
1471      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1472      * natl_box_adjoint updated and compressed
1473      * 2-level checkpoint switch added
1474        (tested in EXP. 1 of natl_box_adjoint)
1475      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1476    o SVD
1477      * first complete, non-hacked version for SVD calculations
1478      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1479        performed via direct access files admtlm_vector.it????
1480        (via ctrl_[un]pack)
1481      * optimcycle is used for ARPACK iteration counter
1482        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1483      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1484        and add linear transforms where necessary
1485      * controls are initial/final SST, SSS (can be extended; need to check
1486        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1487    o mdsio: filename info to both stderr, stdout
1488    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1489      from sign change
1490    
1491    checkpoint55j_post
1492    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1493      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1494    o add consistent build directories and .cvsignore files to verification
1495    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1496    o make all subroutines 30 or less characters in length for certain older
1497      compilers to work (a thorough search only turns up two routines in
1498      pkg/ptracers)
1499    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1500      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1501    
1502    checkpoint55i_post
1503    o change arrays for total vertical diffusivity (2.D if explicit,
1504      3.D if implicit) ; each ptracer uses its own background value.
1505    o added mnc/NetCDF output capability to ocn_compon_interf
1506      - added bits to verification/cpl_aim+ocn so that it can run on
1507        ITRDA and other clusters without the mpirun "-wd" option
1508    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1509      configuration
1510    o give MNC the ability to create additional files rather than
1511      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1512      - the default is just less than 2GB which is a practical limit
1513        on many systems
1514    o Compute the non-local term using either KPP vertical diffusivity (=default)
1515       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1516    
1517    checkpoint55h_post
1518    o add verification test "vermix"
1519    o remove all the *_ioinc flags and replace with the single global
1520      outputTypesInclusive flag
1521    o allow to set a vertical profile of vertical diffusivity for T & S
1522    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1523    o useMNC moved from data.mnc to data.pkg
1524    
1525    checkpoint55g_post
1526    o Renaming carbon AD experiments to comply with testreport conventions
1527    o Updating adjoint of Held-Suarez hs94.1x64x5
1528    o Fixing directives for non-ECCO forward_step, after ECCO directives
1529      have been fixed to avoid recomp. of do_oceanic_phys
1530      Works well for global_ocean.90x40x15,
1531      but recomp. issue remains for carbon
1532    o Updating adjoint output for natl_box_adjoint after
1533      pkg/ecco has been modified (see taga c55d_post)
1534    
1535    checkpoint55f_post
1536    o rename to timeave_init_fixed
1537    
1538    checkpoint55e_post
1539    o some delicate re-shuffle of store directives to avoid one
1540      extra call of do_oceanic_physics
1541      affects ecco_the_main_loop.F, do_oceanic_physics.F
1542      checkpoint_lev1_directives.h
1543    o NB: this may break global_ocean adjoint temporarily,
1544      but it is clear how to fix it. Will do later, need this now.
1545    
1546    checkpoint55d_post
1547    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1548    o ecco_cost_weights is modified to 1x1 runs
1549    o modifs to allow observations to be read in as
1550      single file or yearly files
1551    o enable to read exf forcing fields as either
1552      single file or yearly files (flag useExfYearlyFields)
1553    checkpoint55d_pre
1554    
1555    o switch between 2-level and 3-level checkpointing
1556    o add ability of MNC to write local and "partial" (eg. 2D slices where
1557      the full 3D field is never actually stored) arrays to NetCDF files
1558      with the correct (that is, the complete multi-dimensional) set of
1559      array indicies
1560      - used in mom_vecinv() to write the diagFreq output
1561      - tested (demonstrated) in verification/aim.5l_cs
1562    o further mnc-ification
1563      - add verification/lab_sea to the list with mnc setups
1564      - fix undefined mnc v-names in cd_code
1565      - add kpp to mnc output (both snapshot and timeave)
1566    o non-hydrostatic code
1567      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1568        in calc_gw.F
1569      - defaults to viscAh
1570      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1571        friction or Leith) in non-hydrostatic mode, as long as there is
1572        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1573    o pkg/cost
1574      extend simple cost functions to treat time mean quantities
1575      (T,U,V) via cost_accumulate_state from cost_tile
1576    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1577        be 2 times larger than the minimum size the advection scheme requires.
1578        now get a perfect conservation of salt in advect_cs test-exp (updated)
1579    o GGL90 (Gaspar's TKE mixed layer)
1580      - add horizontal diffusion of TKE, requires exchanges in
1581        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1582        default. In OPA there is no horizontal diffusion of TKE but the
1583        mixing coefficients are computed from a horizontal average of TKE of
1584        6 points or so. I think that diffusion has a little more physical
1585        justification.
1586      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1587        was in vain)
1588      - mask tke-variable in ggl90_init
1589    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1590    o fix biharmonic diffusion on CS-grid.
1591    o more obcs stuff
1592      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1593        for reading boundary values. This routine is called from
1594        obcs_prescribe_read
1595      - updated obcs_check
1596      - changed sponge layer relaxation parameter units for days to seconds
1597      - turned off sponge layer by default
1598      - changed argument list of OBCS_CALC to myTime+deltaTclock
1599      - fixed about 35 bugs in obcs_external_fields_load
1600    
1601    checkpoint55c_post
1602    o obcs stuff
1603      - new runtime flags useOBCSprescribe, useOBCSbalance
1604      - re-arranged obcs_calc
1605      - moved exf_getobcs to obcs_prescibe_read
1606        obcs_prescibe_read is called after ORLANSKI stuff
1607        and independent of it (executable can contain all).
1608      - updated obcs_check
1609      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1610        These may be necessary only if tangential velocities are
1611        prescribed at OB, not sure, needs testing.
1612    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1613      which simplifies the calls and passes the ifc check-bounds test
1614    
1615    checkpoint55b_post
1616    o add a 2D scalar, Z location, exchange_2 routine.
1617    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1618      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1619      affects advect_cs results (for the wrong reason): update output.txt
1620    o use a more standard discretization for biharmonic viscosity ;
1621     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1622      affects results of dome set-up: update output.txt
1623    o fix gad_advection.F (CubedSphere part), back to version 1.23
1624    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1625    
1626    checkpoint55a_post
1627    o merged code to
1628      * prescribe/read time-dependent open boundaries
1629        (works in conjunction with exf, cal)
1630      * sponge layer code for open boundaries
1631      * each boundary N/S/E/W now has its own CPP option
1632        (healthy for the adjoint)
1633    
1634    checkpoint55
1635    o up-to-date adjoint of previous breaks
1636      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1637      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1638      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1639      - carbon: * remove tr1-related adjoint verification
1640                * add ptracer as control variable
1641    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1642      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1643    
1644    checkpoint54f_post
1645    o in verification/carbin/ remove experiment related to
1646      ALLOW_PASSIVE_TRACER (array tr1 etc)
1647      code_ad/ input_ad/ results_ad
1648    
1649    o add two new packages
1650      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1651        + subject to optimization (memory)
1652      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1653        + subject to reordering (many GOTOs in the original code)
1654        + so far opps is called for every (i,j) point, and then operates in
1655          the vertical; one may want to reorder the scheme in order operate in
1656          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1657          fields)
1658    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1659      - all verification tests compile and run with linux_ia32_g77
1660      - defaults are compatible with current input files--nothing
1661        should change if you were not previously using MNC
1662      - MNC output has been added in numerous places (eg. timeave)
1663        but there are still a few writes not yet do-able with MNC
1664        (this is in progress)
1665      - flags now allow for either/or/both use of MDSIO and MNC and
1666        documentation will soon follow
1667      - numerous small formatting cleanups for ProTeX
1668    o add version info (via BUILD_INFO.h) to MNC and stdout
1669    
1670    checkpoint54e_post
1671    o add two new packages
1672      - pp81 (Packanowski and Philander, 1981), Richardson number and
1673        stratification dependent mixing
1674      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1675      - these scheme operate in a similar manner as KPP (without ghat, of
1676        course), however there is only one diffusivity that is used for both
1677        temperature and salinity (and passive tracers)ç
1678    o add offline package
1679    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1680      provided by Stephanie Dutkiewicz
1681    o genmake2: add ability to search for C compilers and cleanup test output
1682      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1683    
1684    checkpoint54d_post
1685    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1686    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1687      leading to additional shift by 5 days each year of integration
1688       (i.e. leading to considerable offset over the years)
1689    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1690    o start with no AB and no initial filtering (staggerTimeStep):
1691      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1692    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1693      (external loading & cpl import/export stay in forward_step.F)
1694    o update coupling interface to work with new staggerTimeStep
1695    o change MDSIO ptracers_pickup.
1696    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1697    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1698    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1699    
1700    checkpoint54c_post
1701    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1702      this affects (truncation error) output.txt of test-exp:
1703       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1704    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1705    o change Qnet to always be the net heat flux, (+upward).
1706      affects (truncation error) output of natl_box exp.: updated
1707    o define the max number of passive tracers in PTRACERS_SIZE.h
1708    o start to test mnc routinely in exp0
1709    o add sea-ice loading (sIceLoad) as a new forcing field.
1710    
1711    checkpoint54b_post
1712    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1713       impressive on Altix and Opteron systems)
1714    o diagnostics can now write NetCDF files through the mnc package
1715    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1716    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1717    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1718      affects (truncation error) output of lab_sea & natl_box exp.: updated
1719    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1720    
1721    checkpoint54a_post
1722    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1723    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1724    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1725    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1726      + internal_wave (shift in writing cg2d_ini_res)
1727    checkpoint54a_pre
1728    
1729    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1730      - modified verification/lab_sea and natl_box_adjoint accordingly
1731    
1732    checkpoint54
1733    checkpoint53g_post
1734    o prepare splitting of thermodynamics: store convect.counter in common block
1735    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1736      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1737    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1738    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1739    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1740    o restore adjointability
1741    
1742    checkpoint53f_post
1743    o modifications that affect AIM experiment results (update output.txt):
1744      - no advection of S at top interface Nr (pkg/generic_advdiff)
1745      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1746    o AIM pkg:
1747      - include stability function into surf.Flux derivative relative to Tsurf
1748      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1749    
1750    checkpoint53e_post
1751    o merged cylindrical coord configuration
1752    o added rotating_tank experiment
1753    checkpoint53e_pre
1754    
1755    checkpoint53d_post
1756    o faulks upgraded: re-generate output.txt that have changed:
1757       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1758    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1759    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1760    o added Sadourny discretization of Coriolis
1761      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1762      - re-enabled use of omega3 (useAbsVorticity)
1763    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1764      vector-invariant equations
1765      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1766    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1767      hopefully without new bugs
1768      - still to do: biharmonic friction for non-hydrostatic w
1769    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1770    o regenerated output for global_ocean_ebm (using -ieee)
1771    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1772      of mom_common/
1773      - simple re-arrangement of instructions within computing loop
1774    checkpoint53d_pre
1775    
1776    checkpoint53c_post
1777    o new version of coupler for AIM+thSIce and Ocean models
1778     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1779     - land: change Evaporation of snow
1780     - aim with thSIce: fix bug in snow-precip.
1781    o changes to calc_gw.F
1782     - bug fix for w^2 term near the bottom boundary
1783     - (hopefully) improve the lateral slip boundary condtions for use with
1784        partial/looped cells
1785      - because the bug fix changes two verification experiments anyway (exp5
1786        and plume on slope), change the lateral boundary condition from half slip
1787        to the value of no_slip_sides
1788    o ebm package wasnt quite up to the parallel task. Fixed that.
1789    o Adjoint of EBM package + verification
1790      * TLM OK
1791      * ADM not sufficient accuracy yet (needs further testing)
1792    
1793    checkpoint53b_post
1794    o Commiting new energy balance model to repository
1795      * package is pkg/ebm
1796      * verif. is verification/global_ocean_ebm
1797      * references are in ebm_driver.F
1798    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1799    C        Global thermohaline circulation. Part I:
1800    C        Sensitivity to atmospheric moisture transport.
1801    C        J. Climate 12(1), 71-82
1802    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1803    C        Global thermohaline circulation. Part II:
1804    C        Sensitivity with interactive transport.
1805    C        J. Climate 12(1), 83-91
1806    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1807    C        Destabilization of the thermohaline circulation
1808    C        by atmospheric eddy transports.
1809    C        J. Climate 7(12), 1870-1882
1810    o Will need long integration testing.
1811    checkpoint53b_pre
1812    
1813    o created pkg/mom_common in preparation for variable viscosity code
1814    o renamed and split ini_mnc_io
1815    o pkg/land: only liquid water can diffuse or run-off
1816    o AIM using land: soil wetness availability account for snow
1817    o added printMapIncludesZeros to EEPARMS namelist
1818    
1819    checkpoint53a_post
1820    o restore TAMC compatiility for exf_constants.h
1821      (no usage of _d in .h)
1822    o Additional storing in KPP in an attempt to fix
1823      TAMC problem with adjoint of KPP code.
1824      (no success...)
1825      Identical code works fine with TAF.
1826    o Fixed verification/natl_box_adjoint experiments.
1827      Initial conditions for Experiments 4 and 5 are now
1828      set to "SEAICE_initialHEFF=0", which is more reasonable,
1829      and hence gives results closer to that of Experiment 2.
1830      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1831    
1832    checkpoint53
1833    o stable checkpoint with up to date adjoint
1834      TLM tests only run for 1st grdchk at the moment. Its unclear if
1835      this is a code problem or a problem with resetting code for g_
1836      variables that is being autogenerated wrong.
1837      Otherwise:
1838       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1839       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1840         are both still in chaos following their security messes.
1841    
1842    checkpoint52n_post
1843    o various build (mostly genmake2) changes including:
1844      - ability to build/run more easily within Cygwin and MacOS X
1845      - more complicated Makefiles with a stronger dependence on Gnu Make
1846    o pkg/seaice modifications
1847      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1848        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1849        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1850      - changed proxy for geostrophic velocity and updated
1851        verification/lab_sea/results/* accordingly
1852      - removed ADI dynamic solver from pkg/seaice
1853      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1854        they caused a segmentation fault under certain circumstances
1855      - removed unused field WATR
1856    o bug fix in exf-package:
1857      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1858         now reflect that.
1859    o small fixes in the cal-package:
1860      - set reference date to first of January for the 'model'-calendar
1861      - failing of cal_CheckDate in cal_FullDate now actually results in a
1862        warning
1863    o small modifications in exf-package to increase flexibility:
1864      - change climtempfreeze from a constant to a runtime parameter that
1865        is specified in data.exf_clim (default = -1.9)
1866      - introduce runtime parameter windstressmax (default = 2.0) that is
1867        specified in data.exf
1868    o fix in pkg/thsice:
1869      - update Evap (Tsf changes) to be consistent with Latent heat flux
1870      - maintain snow precipitation unchanged (even if Tsf >=0).
1871     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1872    
1873    checkpoint52m_post
1874    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1875      this does not change any of the results, because myIter=0 in swfrac always
1876      lead to jwtype=2 (the default anyway), but the call makes little sense
1877      as a default
1878    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1879    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1880      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1881    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1882    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1883    o extending useSingleCpuIO option to work with new exch2 I/O format
1884      - old-style, missing-tile I/O is still accessible by defining CPP
1885        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1886    o monitor package can write to NetCDF files and/or STDOUT
1887    o fix re-definition bug in MNC_GRID_INIT_ALL()
1888    o doc/api_reference added
1889      - a framework for building an API Reference Manual using all
1890        the "protex" comments embedded in the code
1891      - see pkg/generic_advdiff, pkg/mnc for examples
1892    o MNC:
1893      - make myThid the last argument for all subroutines
1894      - new default for the grid files: NO halos
1895      - add useMNC and other run-time flags
1896      - separate per-file-group handling of the unlimited dimension
1897      - early initialization of MNC w/ flags read at the eeboot stage
1898        and lookup tables set in initialize_fixed
1899      - write all MNC output to a freshly-created directory
1900    o thermodynamics sea-ice (thsice) is now tested with testreport.
1901    o test exp. advect_cs: use the standard cs32 grid ; update output.
1902    o Added functionality to grdchk:
1903      pick global i,j,k position (or nearest wet) where to perform check.
1904    
1905    checkpoint52l_post
1906    o new land formulation:
1907      a) use ground enthalpy as prognostic variable to ensure exact
1908         energy conservation.
1909      b) account for water temperature and for latent heat of freezing
1910         in all processes (rain, run-off, ground storage)
1911      c) compute surface and ground temperature implicitly.
1912    o aim_v23 modification for new land model:
1913      a) Treat separately land / ocean / sea-ice surface fluxes
1914         to allow implicit computation of land & sea-ice surface temp.
1915      b) add snow precipitation.
1916    checkpoint52l_pre
1917    
1918    o fix problem (when 1 tile is empty) in min/max monitor.
1919    o fix bug in timeAve (u,vZetatave in common block)
1920    o no restoring terms under ice for pkg/seaice
1921    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1922    o bug fix for pkg/seaice pickups
1923    o change MNC call locations and add coordinate attributes
1924    o mask vorticity at the corner ; affects global_ocean.cs output
1925    o fix ini_curvilinear_grid ; test CS experiments with mpi
1926    o aim.5l_cs: modify sea-ice fraction input file ; update output
1927    o exf: Adding simple range check routine for exf fields after read
1928    
1929    checkpoint52k_post
1930    o removed top-level directory "diags"
1931      - we migrated these functions to pkg/timeave a long time ago
1932    o fixed bug introduced in pkg/monitor
1933    o accuracy ctrlprec = 32 insuffient for gradient checks using
1934      averaged fields (I/O via cost_averages)
1935      -> use ctrl.h in active_file*.F to control I/O precision.
1936    o paramter list of CALL ADTHE_MAIN_LOOP
1937    o added initial do_the_model_io to ecco
1938    o set all ...Freq to zero after cost_final
1939      taveFreq, dumpFreq, pChkptFreq
1940    o MAIN and ECCO differentiability restored
1941    
1942    checkpoint52j_post
1943    o fix nchklev in tamc.h for global_ocean...
1944    o Bringing flow and store directives up-to-date
1945    o Really weird thing!
1946      call do_the_model_io from the_main_loop with parameters
1947      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1948      TAF places a faulty re-call of initialise_varia
1949      after cost_final call which should not be there!
1950    checkpoint52j_pre
1951    
1952    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1953      error messages
1954    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1955    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1956      debug output
1957    o modfied mdsio_writefield.F to handle non-global files under exch2
1958    o update AIM Cubed-Sphere exp (aim.5l_cs):
1959      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1960    o update AIM Equatorial Channel exp:
1961      use standard aim_v23 pkg and change the SST fields to be more realistic.
1962    o globalFile now works with exch2
1963    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1964      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1965    o limit timeave output for hi-res integrations
1966    
1967    checkpoint52i_post
1968    o removed CPP_EEOPTIONS.h from verification/*/code
1969    o updated the tiling for global_ocean_pressure
1970    checkpoint52i_pre
1971    
1972    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
1973      the old pkg/aim).
1974    
1975    checkpoint52h_pre
1976    o shortened offending lines in exch2_send_rx?.template
1977    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
1978    o genmake2: add build & execute test for NetCDF code
1979    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
1980      old grid files, moved CPP_EEMACROS.h to pkg/exch2
1981    o added useSingleCPUIO flag to monitor.F and mon_out.F
1982    o added temporary hack for sea-ice dynamics on the cube:
1983      metric terms are ignored and it is assumed that
1984      there is no sea-ice on cube faces 1, 2, 4, and 5.
1985    
1986    checkpoint52f_post
1987    o added exch2 cube routines to pkg/exch2
1988    o modified hs94.cs-32x32x5 to use it
1989    o added new grid files to hs94.cs-32x32x5
1990    checkpoint52f_pre
1991    
1992    checkpoint52e_post
1993    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
1994      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
1995    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
1996      to work with implicit vertical advection and AB ;
1997    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
1998    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
1999     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2000    checkpoint52e_pre
2001    
2002    o fix bug in impldiff when Nr=1 or Nr=2.
2003    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2004    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2005    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2006      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2007    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2008    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2009    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2010    
2011    checkpoint52d_post
2012    o re-tiled many expts to allow comparison in multi-processor mode
2013      - updated output accordingly
2014      - changed hs94.128x64x5 to use intial T from file rather than use the
2015        random number generator
2016    o add infrastructure in model routines for fizhi and gridalt packages
2017    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2018    o changes to permit hi-res, cubed-sphere, configuration
2019      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2020      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2021      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2022        of surface winds for the cube
2023      (A verification experiment, based on global_ocean.cs32x15, but with
2024       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2025       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2026       complete with example surface forcing files and matlab scripts to look
2027       at the output and compare it with that of global_ocean.cs32x15.)
2028    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2029       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2030       to conform to the common rule.
2031    o check-in the first version of the coupler + interfaces for multi-components
2032       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2033       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2034       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2035       - ocean and atmos. share the same horizontal grid (no interpolation).
2036       - exchanges between component and coupler is done in forward_step
2037    o new verification experiment, cpl_aim+ocn:
2038       coupled ocean - AIM atmosphere on cs32 grid.
2039    
2040    checkpoint52d_pre
2041    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2042    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2043    
2044    checkpoint52c_post
2045    o Fixing OPTIONS files for use of exf:
2046      - ALLOW_ECCO not needed
2047      - ECCO_CPPOPTIONS.h should not be included from
2048        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2049        as has been the case in the past
2050      - All cal/exf related options are currently set in
2051        single header file. Should remain so until we
2052        agree on a consistent new policy.
2053    o Removed all CPP options for cal package.
2054      cal has no more CPP options.
2055    o modified STOREs in GAD_ADVECTION
2056    o corrected key comp. for passkey
2057    
2058    checkpoint52b_post
2059    o new version: "thsice" of thermodynamic sea-ice pkg:
2060     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2061     - modify fluxes but do not change theta directly;
2062     - light cleaning of bulk_force pkg (still needed with thsice).
2063     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2064       + output_thsice.txt to test thsice & bulk_force pkgs.
2065    o put back grid & coriolis monitor output.
2066    checkpoint52b_pre
2067    
2068    o call "do_the_model_io" at the beginning (=> dump initial state)
2069    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2070    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2071      (need info on NUMBER_OF_PTRACERS)
2072    o missing PTRACERS headers in some routines
2073    o default tamc.h in pkg/autodiff supposed to crash
2074      to ensure proper customization
2075    
2076    checkpoint52a_post
2077    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2078      - moved surfaceTendencyTice from pkg/seaice to main code
2079      - subroutine FREEZE_SURFACE now limits only surface temperature
2080        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2081        => new output.txt for global_ocean.cs32x15 & global_with_exf
2082      - keep the old version of FREEZE for backward compatibility;
2083        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2084      - corresponding modifs for TAF directives
2085    o added surface flux output variables to TIMEAVE_STATVARS
2086    o time-averaged output for pkg/ptracers
2087    o fix problem with ECCO-related divided adjoint
2088      snapshot file was missing some ad-variables,
2089      but no warning issued by TAF
2090    
2091    checkpoint52a_pre
2092    o some bug fixes for #undef REAL4_IS_SLOW
2093    
2094    checkpoint52 = ecco_c52_e35
2095    o after testing adjoints of checkpoint51u_post
2096    
2097    checkpoint51u_post
2098    o this is the post-merge tag of the ecco-branch
2099      (needs another clean checkout and re-testing)
2100    o various natl_box_adjoint configs and results
2101      but no input fields
2102    o obcs adjoint not yet merged!
2103    o adding ECCO global 1x1 and 2x2 degree configs
2104    o updated/extended some store directives for seaice
2105    o pkg/ecco now containes ecco-specific part of cost function
2106    o top level routines the_main_loop, forward_step
2107      supersede those in model/src/
2108      previous input data.cost now in data.ecco
2109      (new namelist ecco_cost_nml)
2110    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2111    
2112    checkpoint51t_post
2113    o this is the pre-merge tag of the ecco-branch
2114    
2115    checkpoint51s_post
2116    o cleanup: removed various obsolete #define-s
2117    o pkg/grdchk
2118      - renamed 'ph-grd 3' to 'grad-res'
2119      - merged from ecco-branch
2120        (remaining bug fixes for obcs gradient checks)
2121      - additional high-precision output for testreport
2122        (grep for 'precision_grdchk_result')
2123    
2124    checkpoint51r_post
2125    o cleaned up or removed CPP_OPTIONS.h files
2126    o updated results for some of the tests to reflect the new
2127      optfiles (-ieee: -O0 instead of -O3)
2128    
2129    checkpoint51q_post
2130    o cd_code:
2131      - moved cd_scheme.F -> cd_code_scheme.F
2132      - separate read_checkpoint from cd_code_ini_vars.F
2133      - separated cd_code part from write_checkpoint
2134      - updated AD_SOURCE, generated .flow
2135      - added CD_CODE_VARS.h to the_main_loop
2136      - Moving cd_code specific store dir.s to pkg/cd_code
2137    o ctrl package totally restructured
2138      - pack/unpack now optional and decoupled from
2139        xx_/adxx_ I/O
2140      - ctrl_pack/unpack cleaned
2141        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2142      - confined inclusion of AD_CONFIG.h to where necessary.
2143    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2144    
2145    checkpoint51p_post
2146    o create initial cd_code package
2147      - WARNING: the initialization of fields within packages
2148        is broken because INI_FIELDS (where READ_CHECKPOINT is
2149        called) is called *before* PACKAGES_INIT_VARIABLES.
2150        This seems to be backwards since
2151        1) its important to initially zero the entire field including
2152           the "halo" region
2153        2) zeroing needs to be done *before* reading pickup info
2154           and the pickup call might or might not happen in any
2155           particular run
2156      - this needs an overhaul for R2
2157    o cleanup verification/*/code/GMREDI_OPTIONS.h
2158    o cleanup testreport
2159    
2160    checkpoint51o_post
2161    o bringing AD-related verif's up to date with genmake2
2162      - carbon/
2163      - global_ocean.90x40x15/
2164      - hs.94.1x64x5/
2165      - (front_relax/ )
2166    o (more) consistent directory structure for AD-related verif.'s
2167    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2168    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2169    o bug fix in find_alpha.F for MDJWF:
2170      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2171        change rho -> rho-rhoConst
2172      - replace call find_rho to find_rhonum
2173    o initialisation of rFlx extended to full array (required by TAF)
2174      and shifted to thermodynamics
2175    o removed PTRACERS.h in ptracers routine
2176    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2177    o Correcting initialisations for fVerU, fVerV.
2178    o helping TAF to recognize dependency on kUp for
2179      fVerU, fVerV
2180    o Replacing delZ by delR in pkg/ctrl/
2181    checkpoint51o_pre
2182    
2183    o undid all of cp51 pending some cleanups and discussion
2184    o added the [#include "AD_CONFIG.h"] statement to all files that need
2185       it for adjoint/tl #defines
2186     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2187     o removed tools/genmake since it no longer works
2188    
2189    checkpoint51n_post
2190    o modifications to make FREEZE flux visible to pkg/kpp
2191      - moved surfaceTendencyTice from pkg/seaice to main code
2192      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2193      - subroutine FREEZE now limits only surface temperature
2194        (this means new output.txt for global_ocean.90x40x15,
2195         global_ocean.cs32x15, and global_with_exf)
2196    o added surface flux output variables to TIMEAVE_STATVARS
2197    
2198    checkpoint51n_pre
2199    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2200    o added [#include "AD_CONFIG.h"] to all files that use the following
2201      defines:
2202      - ALLOW_ADJOINT_RUN
2203      - ALLOW_TANGENTLINEAR_RUN
2204      - ALLOW_ECCO_OPTIMIZATION
2205    
2206    checkpoint51m_post
2207    o incorporating changes to get TAMC/TAF working in genmake2
2208      - added new TAMC/TAF targets to the Makefile
2209      - various cleanups related to package handling
2210      - these changes should have no impact on the forward model
2211    
2212    checkpoint51l_post
2213    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2214     - faster algorithm for cal_addtime.F
2215     - higher precision arithmetic, where needed
2216     - pkg/exf *startdate variables changed from calendar date to
2217       model integration time
2218    
2219    checkpoint51l_pre
2220    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2221    o enable to apply restoring on S & T only in a latitude band.
2222    o update output (external_forcing_surf modif. change truncation errors)
2223       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2224    
2225    checkpoint51k_post
2226    o change default to: useNHMTerms=.FALSE.
2227     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2228       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2229     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2230        exp1, ideal_2D_oce
2231     - change data file of oceanic exp (leave the results unchanged for now)
2232       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2233    o set gravitySign automatically according to the vertical coordinate used
2234      (and change sign: back to "logical" value: +1 when R increases downward)
2235    o added an include barrier to the default CPP_OPTIONS.h and
2236      removed the #include "PACKAGES_CONFIG.h" from it
2237    o fix a bug in mom_fluxform (from chk51j_post)
2238    
2239    checkpoint51j_post
2240    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2241    o adjusted some flow directives (dynamics, thermodynamics)
2242    o added cubed-sphere case to test cost function
2243    o heckpoint_lev?_directives.h now include
2244      pkg-specific directives, whenever those are enabled.
2245    o Moving pkg-specific flow directives to corresponding pkg
2246      Moving pkg-specific differentiation list to corresponding pkg
2247      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2248      ---> conventions are
2249           - pkg_ad.flow
2250           - pkg_ad_diff.list
2251           - pkg_ad_check_lev?_dir.h
2252    
2253    checkpoint51i_post
2254    o merge of the branch-genmake2
2255      - knowingly breaks the older genmake
2256      - automatic generation of all ALLOW_${PKG_NAME} defines
2257      - new testreport supersedes older testscript
2258    o large number of package inclusion and header cleanups
2259    checkpoint51i_pre
2260    
2261    o new output for adjoin of global ocean vector invariant
2262    o fix for checkpoint of thermodynamic seaice and bulk_force
2263    o Steph gchem various cleanups
2264    
2265    checkpoint 51h_pre
2266    o fixed some single quotes
2267    o modify gchem pkg to be more versatile
2268    o modifications to clean up dic pkg
2269    o add pkg/cfc
2270    
2271    checkpoint51g_post
2272    o provide links for ARPACK and ADM*TLM
2273    o start removing verification/vero/
2274    o update AD-related stuff
2275      (in particular some IF-statements in model/src/ routines)
2276    o adding to verification/global_ocean.90x40x15/ adjoint of
2277      vector invariant setup
2278    
2279    checkpoint51f_post
2280    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2281    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2282      of tracer Green's fucntions for ocean inversion project.
2283    
2284    checkpoint51f_pre
2285    o Added on-the-fly spatial interpolation capability
2286        "USE_EXF_INTERPOLATION" to pkg/exf.
2287      - This is a temporary Cartesian-grid hack until
2288        the super-duper ESMF coupler becomes available.
2289      - See verification/global_with_exf/README for usage example.
2290      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2291        flags and modified pkg/seaice accordingly.
2292    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2293        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2294        non-local transport term.
2295    
2296    checkpoint51e_post
2297    o pkg/mom_vecinv:
2298      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2299      - add time-ave diagnostic of vorticity advection.
2300    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2301    o atmospheric geopotential: - include water vapor effect;
2302                                - use p^kappa in p* scaling.
2303    o land pkg: read initial state from files.
2304    o AIM : add stratospheric drag in the upper level
2305    
2306    checkpoint51d_post
2307    o change function ILNBLNK (=> last non-blank char.) to return zero
2308      (instead of the string length) when the string. char is empty
2309    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2310    o modif's to restore TAMC compatibility
2311      - avoid "_d" constructs in PARAMETER declarations
2312      - avoid interrupting lines by comment lines
2313    o Use cluster local disks for purely local I/O
2314      vs. globally visible disks needed for ctrl stuff
2315      (merged from ecco-branch)
2316      - new active_file_loc... and mdsio_..._loc routines
2317      - affected packages: autodiff, ctrl, grdchk, mdsio
2318    
2319    checkpoint51c_post
2320    o introducing integer flag debugLevel
2321      - debLevZero: suppress all output
2322      - debLevA: standard
2323      - debLevB: equivalent to current debugMode=.TRUE.
2324    o introducing pathname variable mdsioLocalDir for mdsio
2325      that can be specified at runtime
2326      (relevant for cluster I/O to local disk)
2327    `
2328    >>>checkpoint51b_post
2329    adjoint of ptracers
2330    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2331    o extended state in checkpoint_lev?, etc.
2332    o alternative ctrl/cost with tr1 or ptracer
2333    o new comlev1_bibj_ptracers
2334    o new ptracers.flow
2335    o made ptracers_forcing same as external_forcing_s
2336    o added verification for adjoint with ptracers
2337      - adm. grdchk fail so far
2338      - tlm. grdchk OK
2339      - checked tapelev/comlev recomputations: OK
2340    <<<checkpoint51b_pre
2341    
2342    checkpoint51a_post
2343    o added code for biogeochemistry package
2344      - new pkgs: dic, gchem
2345      - new subroutine in ptracers
2346    o modify code for biogeo packages
2347      - in model/src and pkg/ptracers
2348    
2349    checkpoint51
2350    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2351      - autodiff, ctrl, exf, grdchk, seaice
2352      kept separate packages
2353      - cost, ecco, obcs
2354    o updating verification/internal_wave, verification/lab_sea
2355      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2356    
2357    checkpoint50i_post
2358    o Preparing next differentiable checkpoint and sync
2359      of MAIN vs. ecco-branch
2360      - 1st step: this one is differentiable
2361      - 2nd step: next(! not this) checkpoint will have updated packages
2362                  from ecco-branch)
2363    
2364    checkpoint50h_post
2365    o new package "land": provide surface BC for AIM.
2366    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2367    o AIM: use true log-P extrapolation for near surface temp (= as in
2368        F.Molteni paper) ; update aim.5l_cs output.
2369    o New variable in PARM03 for more flexible pickups
2370    o somewhat cleaned package initialisation sequence for
2371      ctrl/ cost/ ecco/ in packages_... routines
2372    
2373    checkpoint50g_post
2374    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2375      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2376      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2377        made the default because of faster convergence than ADI
2378    
2379    checkpoint50f_post
2380    o exf totally restructured
2381      - replaced all exf_set_ routines by one generic exf_set_gen.F
2382        and made sure it's still differentiable
2383      - split exf_getffields.F into new exf_bulkformulae.F
2384      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2385      - updated adjoint/makefile and relevant verif. accordingly
2386    
2387    checkpoint50f_pre
2388     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2389          + change Evap over land. (update aim.5l_cs output)
2390     o added missing .cvsignores and made uniform across expts
2391     o changed configuration of tidal_basin_2d expt
2392     o added pkg/debug functions for tracing code in fatal crashes
2393     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2394     o new fn in pkg/monitor to stop model if solution grows too big
2395     o removed lots of single quotes from comments
2396    
2397    checkpoint50e_post
2398    o make KPP work with PTRACERS
2399     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2400       nearly a copy of kpp_transport_s
2401     - there is no analogue to SurfaceTendencyS, so I have to use
2402       gPtr(of the surface layer) instead
2403    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2404    checkpoint50e_pre
2405    
2406    checkpoint50d_post
2407    o change kpp output from multiple-record state files to single-record state
2408      files analogous to write_state.F
2409    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2410      analogous to the cg2d-related output.
2411    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2412      so that writing to internal file fn (with length 512) fails.
2413    checkpoint50d_pre
2414    
2415    checkpoint50c_post
2416    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2417    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2418    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2419    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2420    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2421    
2422    checkpoint50c_pre
2423    Merging from release1_p13:
2424    o bug fix for pkg/seaice dynamic solver
2425    o Added SEAICE_initialHEFF to pkg/seaice
2426    
2427    checkpoint50b_post
2428    o store u*,v* in gU,V instead of in guNm1,gvNm1
2429    o in order to put the momForcing out of the Adams-Bashforth:
2430      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2431      to timestep.F
2432    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2433    o re-generate output for highly sensitive test-exp:
2434       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2435    
2436    checkpoint50b_pre
2437    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2438    o corrected CPP option mismatch in exf_Bulk... functions for case
2439      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2440    
2441    checkpoint50a_post
2442    o Bug fix for merging between c50 and KPP.
2443      ikey was passed from thermodynamics to kpp_calc via
2444      common block rather than being recomputed in kpp_calc,
2445      in contradiction with new key itdkey.
2446      New key ikppkey created, and tamc.h headers updated.
2447    
2448    checkpoint50
2449    - 2nd step of merge with ecco-branch:
2450      merge changes in ecco-branch back into main trunk
2451    - bug fix in find_alpha
2452    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2453    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2454    - merged some sliced AD support routines
2455    
2456    checkpoint49
2457    merged from ecco-branch:
2458    o exf:
2459      - Enable initialisation of forcing fields to constant
2460        (runtime) values.
2461      - in exf_getffields.F
2462        Reduce i-/j-loop to interior domain, discarding overlaps.
2463        That also fixes wrong TAF-key computations for key_1, key_2
2464        with bulf formulae.
2465      - exf_init.F modify #ifdef for exf_init_evap
2466      - exf_getffieldrec.F, ctrl_getrec.F
2467        The following INT-usages are not safe:
2468          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2469          fldcount = int(fldsecs/fldperiod) + 1
2470        and were modified.
2471    o autodiff: checkpoint_lev...
2472      - updated storing for bulk formulae (some arrays were missing)
2473      - added state for seaice package
2474      - synchronized with main branch
2475    o DIVA:
2476      Modif.s in
2477      - the_main_loop.F
2478      - the_model_main.F
2479      and added cost_final_restore.F cost_final_store.F
2480      o With these changes, it is possible to fully separate
2481        the first forward run to compute the cost function (mdthe_main_loop)
2482        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2483        into separate model executions.
2484        This enables better tuning of DIVA to given queue sizes.
2485      o Loss of cost function value in consecutive DIVA runs is
2486        fixed by storing to 'costfinal' file.
2487      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2488        beginning/end of adjoint integration is accounted for.
2489      The current changes apply to TAF-1.4.26.
2490      TAF has one remaining bug, requiring one manual change
2491      (see MITgcm manual).
2492    o cal: synchronized between MAIN and ecco-branch
2493    
2494    checkpoint48i_post
2495    o Changes to restore differentiability of code w.r.t. previous tag
2496      (mostly adding new routines to make list and replacing
2497      pressure by totPhiHyd).
2498    o Updated and merged grdchk package
2499      - has both ADM and TLM checks
2500      - works for single- and multi-proc.
2501      - output cleaned
2502      - worked successfully for parallel DIVA
2503    o genmake:
2504      - Adding -platform=SP4
2505      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2506    o Modif. for DIVA:
2507      ctrl_unpack should not be called in intermediate DIVA interval.
2508      (similar thing would apply for active files such as
2509      tbar, sbar, psbar, which should not be reinitialised;
2510      only relevant for ecco-branch)
2511    
2512    checkpoint48h_post
2513    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2514    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2515    o Added SEAICE_initialHEFF to pkg/seaice
2516    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2517    
2518    checkpoint48g_post
2519    --- EOS:
2520    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2521      store total Potential in totPhyHyd for diagnostics & EOS.
2522    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2523    --- Pressure/geopotential gradient:
2524    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2525    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2526      ( changes results of global_ocean_pressure )
2527    o NLFS + z-coord.: add eta*Rho' contribution.
2528    o accurate phiHyd when using interface-W at the middle between 2 centers
2529     ( changes results of ideal_2D_oce )
2530    o includes r* 2nd term in potential gradient.
2531    
2532    checkpoint48f_post
2533    Merging from release1_p12:
2534    o Modifications for using pkg/exf with pkg/seaice
2535      - improved description of the various forcing configurations
2536      - added basic radiation bulk formulae to pkg/exf
2537      - units/sign fix for evap computation in exf_getffields.F
2538      - updated verification/global_with_exf/results/output.txt
2539    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2540      (SBO) core products, including oceanic mass, center-of-mass,
2541      angular, and bottom pressure (see pkg/sbo/README.sbo).
2542    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2543      to avoid negative values in shallow regions.
2544      - updated verification/natl_box/results/output.txt
2545      - updated verification/lab_sea/results/output.txt
2546    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2547    o Added useSingleCpuIO option (see PARAMS.h).
2548    o Updated useSingleCpuIO option in mdsio_writefield.F to
2549      work with multi-field files, e.g., for single-file pickup.
2550    o pkg/seaice:
2551      - bug fix in growth.F: QNET for no shortwave case
2552      - added HeffFile for specifying initial sea-ice thickness
2553      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2554    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2555      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2556    o pkg/seaice:
2557      - adjoint-friendly modifications
2558      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2559    
2560    checkpoint48e_post
2561    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2562    o dynamics: change definition of computational domain & adapt mom_fluxform
2563      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2564    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2565        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2566        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2567        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2568        inverted_barometer solid-body.cs-32x32x1
2569      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2570    
2571    checkpoint48d_post
2572    o in preparation for r*:
2573     a) use pre-computed gradient of hydrostatic potential:
2574        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2575     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2576        => affects results of glob_oce_pressure (different truncation error)  
2577      update output.txt of ideal_2D_oce & global_ocean_pressure
2578    
2579    checkpoint48d_pre
2580    o in preparation for r*:
2581      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2582      pass the 2 comp. of the grad. as arguments to momentum S/R.
2583      but for the moment, only used if it does not change the results.
2584    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2585    
2586    checkpoint48c_post
2587    Modifications in treatment of initial flux forcing controls
2588    to avoid extra storing of flux fields.
2589    
2590    checkpoint48c_pre
2591    o Added tidal_basin_2d experiment (currently 1D!)
2592    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2593    
2594    checkpoint48b_post
2595    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2596     (modification to pressure gradient not yet implemented)
2597    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2598      (for U & V) that are used for vertical advection of momentum.
2599    
2600    checkpoint48a_post
2601    o In preparation for r*, use temp. array to compute vertical transport
2602       in flux-form momentum pkg. => change results of few test-exp.
2603      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2604                        lab_sea, natl_box & plume_on_slope
2605    
2606    checkpoint48
2607    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2608    
2609    checkpoint47j_post
2610    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2611    o moved adexch from forward_step to addummy_in_stepping
2612    o added exch in ctrl_map_...
2613    o aveFreq.=0. at end of cost_final to avoid overwrite in
2614      reverse checkpointing loop
2615    o Yet more changes in gmredi:
2616      * adgmredi_calc_tensor
2617        avoiding all recomputation of gmredi_slope_limit
2618      * adgmredi_x/y/rtransport
2619        added flag for excessive storing to avoid recomp. of
2620        u/v/rtans, dTdx/y/z
2621        -> this is not really necessary and very memory-consuming
2622      * adgmredi_slope_psi:
2623        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2624      * gmredi_slope_limit
2625        re-activated full calculation of taperfct for case 'ac02'
2626    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2627    
2628    checkpoint47i_post
2629    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2630    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2631      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2632    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2633    o gmredi: fix few bugs.
2634    
2635    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2636    This will be a good checkpoint to plug into the ecco-branch.
2637    o few modif.'s to get latest version adjointed
2638      (mainly kick out code in ini_linear_phisurf)
2639    o modif's to run adjoint with exactConserv
2640    o case GM_BOLUS_ADVEC should be cleaned
2641      S/R gmredi_slope_psi should be cleaned
2642    o verification/carbon now has exactConserv=.TRUE.
2643    
2644    checkpoint47g_post
2645    o time-average AIM output: becomes independent from statvars time-average
2646      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2647    o After TAF bug fix:
2648      Tested adjoint of gmredi package.
2649      Tests were done with checkpoint47 rather than with latest
2650      checkpoint47f_post since the latter is broken for the adjoint
2651      verification/carbon/ contains both ADM and TLM gradient checks.
2652    Here they are, before they get changed/lost/stolen.
2653    Mostly modif.'s to fix numerical sensitivities.
2654    Gradient checks OK for
2655    - GM_taper_scheme:
2656      * clipping
2657      * ac02
2658      * linear
2659      * glw91
2660      * dm95
2661      * ldd97
2662    - GMREDI_OPTIONS:
2663      * GM_VISBECK_VARIABLE_K
2664      * GM_NON_UNITY_DIAGONAL
2665      * GM_EXTRA_DIAGONAL
2666      * GM_BOLUS_ADVEC
2667    in conjunction with data.gmredi parameters to be checked in
2668    in a few minutes under verification/carbon/code/
2669    
2670    checkpoint47f_post
2671    Merging from release1_p10:
2672    o modifications for using pkg/exf with pkg/seaice
2673      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2674        and SEAICE_EXTERNAL_FLUXES
2675      - pkg/exf CPP options EXF_READ_EVAP and
2676        EXF_NO_BULK_COMPUTATIONS
2677      - usage examples are Experiments 8 and 9 in
2678        verification/lab_sea/README
2679      - verification/lab_sea default experiment now uses
2680        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2681    
2682    checkpoint47e_post
2683    o created a tag prior to creating a branch
2684    
2685    checkpoint47d_post
2686    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2687      at the bottom boundary had an erroneous half slip boundary condition
2688    o added bottom drag and no slip boundary condition capabilities to
2689      oceanic pressure coordinates code
2690    o added new verification experiment global_ocean_pressure, this experiment is
2691      also described in the tutorial section of the manual
2692    checkpoint47d_pre
2693    
2694    checkpoint47c_post
2695    o Added a verification experiment for a global cubed-sphere ocean run
2696      -  verification/global_ocean.cubed32x32x30
2697      -  uses pkg/therm_seaice and pkg/bulk_forcing
2698    
2699    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2700    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2701      when using P-coordinate; only implemented for atmospheric config.
2702    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2703      NOTES: requires option NONLIN_FRSURF to be "#define".
2704    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2705    
2706    checkpoint47b_post
2707    Merging from release1_p9:
2708    o pkg/seaice
2709      - removed GOTO's and added taf directives
2710      - double precision constants to reduce the g77 (Linux)
2711        to F77 (SGI) differences reported in release1_p8
2712    o tools/genmake
2713      - added SGI options
2714    o verification/testscript
2715      - updated to that of checkpoint47a_post
2716    o verification/global_ocean.90x40x15/input/eedata
2717      - modified for SGI f77 compatibility
2718    o verification/lab_sea
2719      - added description of sea-ice model
2720      - added missing matlab routines
2721      - added test of thermodynamics parallelization
2722    
2723    checkpoint47a_post
2724    o new pkg: aim_v23
2725     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2726       for now, keep the same surface forcing as before.
2727     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2728     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2729     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2730    o add diagnostic of surface correction term in monitor output
2731    
2732    o bulk_force and therm_seaice
2733    - Two packages:  bulk_force (Bulk forcing)
2734      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2735    - Earlier integration from Stephaine Dutkiewicz
2736      and Patrick Heimbach.
2737    - Two ifdef statements for compile time,
2738       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2739    
2740    checkpoint47
2741    differentiable version of checkpoint46n_post
2742    o bug fix in quasihydrostaticterms
2743    o * "clean" adjoint code (in terms of extensive recomputations)
2744        can now be obtained for all GMREDI options (i.e. for
2745        - GM_VISBECK_VARIABLE_K
2746        - GM_NON_UNITY_DIAGONAL
2747        - GM_EXTRA_DIAGONAL
2748        - GM_BOLUS_ADVEC )
2749      * However, wrong gradient check problem remains unsolved.
2750      * New CPP options have been introduced for different
2751        tapering schemes
2752    o external_fields_load now part of differentiation list
2753    o pressure needs multiple storing;
2754      would be nice to have store_pressure at beginning or
2755      end of forward_step, e.g. by having phiHyd global (5-dim.)
2756      (NB: pressure is needed for certain cases in find_rho,
2757      which is also invoked through convective_adjustment).
2758    o recomputations in find_rho for cases
2759     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2760    o #define ATMOSPHERIC_LOADING should be differentiable
2761    o ini_forcing shifted to begining of initialise_varia
2762    o Incorporating QNVS line search routines into MITgcm
2763      (this is separate code, and therefore not under pkg)
2764      lsopt/, optim/
2765    o Updated verification/carbon/
2766      - #define GM_VISBECK_VARIABLE_K
2767      - GM_taper_scheme    = 'ldd97'    
2768    
2769    checkpoint46n_post
2770    Merging from release1_p8:
2771    o verification/natl_box:
2772      updating new external_fields_load routine
2773    o New package: pkg/seaice
2774      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2775      The sea-ice code is based on Hibler (1979-1980).
2776      Two sea-ice dynamic solvers, ADI and LSR, are included.
2777      In addition to computing prognostic sea-ice variables and diagnosing
2778      the forcing/external data fields that drive the ocean model,
2779      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2780      The implied surface heat flux is then stored in variable
2781      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2782      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2783      non-local transport term.  Because this call precedes model
2784      thermodynamics, temperature under sea-ice may not be "exactly" at
2785      the freezing point by the time theta is dumped or time-averaged.
2786      N.B.: fairly large differences in accuracy occur across
2787            different platforms/compilers; comparison between
2788            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2789            generated output gives:
2790       T           S           U           V
2791      C D M    c        m  s        m  s        m  s        m  s
2792      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2793      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2794      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2795    
2796      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2797    o GAD:
2798      - generated new common blocks to account for call of
2799        same gad routines with differing traceridentities
2800        (needed to modify tracerIdentity indices in GAD.h)
2801      - generated separate common blocks for case useCubedSphereExchange
2802        (Department of Futurology)
2803      - parameter lists to gmredi_?transport: added tracerIdentity
2804      - added new key indices to tamc.h
2805    o external_fields_load:
2806      - added this routine to TAF list
2807      - needed to make some common blocks global and additional storing
2808        along the same lines as exf package (checkpoint_lev?_directives.h)
2809    o exf:
2810      updated external forcing package
2811      - bug fixes carried over from ecco-branch
2812        (missing OBCS_OPTIONS.h in two routines)
2813      - enable easy to use "no forcing".
2814      - added exf I/O for atmospheric loading
2815      - added exf I/O for runoff data
2816      - transfered scaling between exf <-> MITgcm to exf namelist
2817    o Adding new verification experiment global_with_exf.
2818      This verification experiment is almost identical to the
2819      global_ocean.90x40x15 experiment, except that it uses
2820      the exf (and cal) package instead of the
2821      external_fields_load routine (cf README file).
2822    
2823    checkpoint46m_post
2824    o modified testscript to return -- when there are no lines of "%MON" output
2825    o added new flag "quasiHydrostatic" for QH mode
2826      and new routine quasihydrostaticterms()
2827    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2828      New routine: mom_u_coriolis_nh()
2829    o fixed sign of non-hydrostatic metric terms in u and v equations.
2830      Depend on correct sign of gravitySign.
2831    o added work.pc* to .cvsignore in aim directories using ifc
2832    o introduced flag for controllin non-hydrostatic metric terms
2833    o removed gravitySign from PARM04
2834    o switched to g77/ifc from pgf77 in aim experiments
2835    
2836    checkpoint46l_post
2837    o made convective adjustment work with pressure coordinates:
2838     - changed the direction of k-loop in convective_adjustment.F for the
2839       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2840     - adjusted the reference pressure k-index in convective_adjustment.F
2841     - adjusted the convection condition in convect.F (in analogy to
2842       calc_ivdc.F)
2843     - convective_adjustment no longer computes anything on the halos
2844     - removed the warnings about negative salinity from find_rho.F and
2845       find_alpha.F; instead the new routine look_for_neg_salinity, called
2846       at the beginning of find_rho, find_alpha, and find_beta, does a
2847       check of the entire slice, if CPP-option
2848       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2849    checkpoint46l_pre
2850    
2851    checkpoint46k_post
2852    o fixed the verification/global_ocean.90x40x15 experiment:
2853     - new bathymetry (the world according to A., JMC, and M.)
2854     - new initial fields and forcing fields (*.bin files)
2855     - new POLY3.COEFFS (for the next release one should switch to a full
2856       equation of state: JMD95P or MDJWF)
2857     - fixed several errors and redundancies in the data file
2858     - experiment uses looped cells
2859     - added matlab directory with diagnostic scripts for plotting of output
2860    
2861    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2862     - read AIM physics parameters from a file (data.aimphys)
2863     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2864    
2865    checkpoint46j_post
2866    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2867    o move wVel computation at the end of the time step, in S/R integr_continuity
2868    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2869    o update timeave pkg for wVel diagnostic.
2870    checkpoint46j_pre
2871    
2872    checkpoint46i_post
2873    o Clean up AIM package (and keep the results unchanged):
2874      include CPP_OPTION and use IMPLICT NONE in all routines ;
2875      declare all the variables _RL ; use _d 0 for all numerical constants.
2876      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2877    
2878    checkpoint46h_post
2879    o cleaned up the use of rhoNil and rhoConst.
2880      - rhoNil should only appear in the LINEAR equation of state, everywhere
2881        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2882        and the dynamical equations are all divided by rhoConst
2883    o introduced new parameter rhoConstFresh, a reference density of fresh
2884      water, to remove the fresh water flux's dependence on rhoNil. The default
2885      value is 999.8 kg/m^3
2886    o cleanup up external_forcing.F and external_forcing_surf.F
2887      - can now be used by both OCEANIC and OCEANICP
2888    checkpoint46h_pre
2889    
2890     Added code to convert surface volume flux (fresh water) into
2891     a mass flux when using P coordinates in the ocean (OCEANICP).
2892     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2893    
2894    checkpoint46g_post
2895    o Include a new diagnostic variable phiHydLow for the ocean model
2896      - in z-coordinates, it is the bottom pressure anomaly
2897      - in p-coordinates, it is the sea surface elevation
2898      - in both cases, these variable have global drift, reflecting the mass
2899        drift in z-coordinates and the volume drift in p-coordinates
2900      - included time averaging for phiHydLow, be aware of the drift!
2901    o depth-dependent computation of Bo_surf for pressure coordinates
2902      in the ocean (buoyancyRelation='OCEANICP')
2903      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2904        Theta, Salinity, and Pressure in the parameter list. This routine is
2905        presently contained in find_rho.F. This routine does not give the
2906        correct density for 'POLY3', which would be a z-dependent reference
2907        density.
2908    o cleaned up find_rho
2909      - removed obsolete 'eqn' from the parameter list.
2910    o added two new verification experiments: gop and goz
2911      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2912    checkpoint46g_pre
2913    
2914    checkpoint46f_post
2915    o Enable tangent linear (forward mode) gradient checks:
2916      - extended active file handling to g_... files
2917      - added TANGENT_SIMULATION to theSimulationMode
2918      - extended grdchk package accordingly
2919    o added tangent linear setup in verification/carbon/code_ftl
2920    o added adjoint setup in verification/front_relax/code_ad
2921    
2922    checkpoint46e_post
2923    o Added new equation of state -> MDJWF
2924      - EOS of McDougall et al., 2002, JAOT, submitted
2925      - caveat: the equation of state is only valid for a smaller (more
2926        realistic?) range of values than JMD95P/Z and UNESCO
2927      - added masks to the calculation of pressure in store_pressure
2928      - added more check values for density in check_eos (ini_eos.F), some of
2929        the old check values are out of the range of the MDJWF-eos, so don't
2930        expect perfect matches for those
2931    checkpoint46e_pre
2932    
2933    checkpoint46d_post
2934    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2935      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2936      case of pressure coordinates. eosType='JMD95Z' in
2937      combination with buoyancyRelation='OCEANICP' now causes an error.
2938    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2939      in find_alpha/beta.
2940    checkpoint46d_pre
2941    
2942    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2943      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2944    
2945    checkpoint46c_post
2946    o Changes necessary for ocean in p-coordinates
2947     -  Added new buoyancy relation = 'OCEANICP'
2948     -  Added new parameters = gravitySign (this used to be contained inside
2949        the factor dRdZ which I added when we first switched to R coordinates).
2950     X GM/Redi is not compatible (yet)
2951     X bottom drag and no-slip need to be debugged.
2952    checkpoint46c_pre
2953    
2954    checkpoint46b_post
2955    o Added new equation of state -> JMD95Z and JMD95P
2956      - EOS of Jackett and McDougall, 1995, JAOT
2957      - moved all EOS parameters into EOS.h
2958      - new routines ini_eos.F, store_pressure.F
2959    o Added UNESCO EOS, but not recommended because it requires
2960      in-situ temperature (see JMD95)
2961    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2962      unesco.f to be used with POLY3
2963    checkpoint46b_pre
2964    
2965    checkpoint46a_post
2966    o Added (atmospheric) pressure loading
2967      - new field in FFIELDS.h, etc...
2968      - new cpp flag ATMOSPHERIC_LOADING
2969    o Changed hFacC to _hFacC in calc_phi_hyd.F
2970    o Added SHORTWAVE_HEATING to some files for consistency
2971    checkpoint46a_pre
2972    
2973    checkpoint46
2974    further merges from release1_p5
2975    o new ctrl package
2976      - adopted from ECCO environment to enable optimization
2977      - added Eliassen Palm fluxes to controls
2978    o added Eliassen Palm flux controls to gradient check package
2979    o cost package
2980      - Compatible with new ctrl package
2981      - added Eliassen Palm cost hooks
2982      - modif's of existing cost functions
2983    o Adjoint-related bug fixes in kpp:
2984      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
2985      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
2986    o autodiff package
2987      - flow directives:
2988        + new for S/R do_the_model_io
2989        + enhanced for S/R checkpoint
2990        + new gmredi.flow
2991      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
2992        disable adcommon.h/g_common.h by default.
2993      - fixed problem for adjoint of global_max
2994    o modified verification/carbon/
2995    o New setup for adjoint of global_ocean
2996    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
2997    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
2998    o incorporated hooks for sponge layer code (external_forcing.F)
2999    
3000    checkpoint45d_post
3001    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3002    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3003      (affects plume_on_slope "cg2d" output)
3004    o add new parameter deltaTfreesurf for free-surface time stepping
3005    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3006    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3007    o change phiMin in exp1 (to agree with documentation)
3008    o add new flags:
3009     - T,S forcing inside/outside Adams-Bashforth
3010     - turn off temp,salt advection and/or forcing
3011     - for each tracer, define internal flag for multiDimAdvection & A-B
3012    o monitor: change definition of KE to check conservation of Energy
3013    
3014    checkpoint45c_post
3015    o Removed f90 comments ("!")
3016    o Modified initialisations to enable exf package for MITgcm
3017      (without invoking ECCO_PACKAGE).
3018    o modifications to gradient check package (Martin Losch)
3019      - enable centered differences
3020      - modified format of standard output
3021    
3022    checkpoint45b_post
3023    o cleaned exchange calls in cg2d
3024    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3025    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3026      to configure barotropic setup (Martin Losch)
3027    o moved some initialisations within bi,bj loop in dynamics
3028      (TAF flow dependency)
3029    o in initialise_varia, moved call packages_init_variables
3030      before convective_adjustment_init
3031      (corresponding adjustment of TAF tape initialisation).
3032    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3033    
3034    checkpoint45a_post
3035    o compute Rho over the whole domain (extend iMin,jMin indices)
3036    o specific exchange for X-slice domain (case Ny=1)
3037    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3038    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3039    
3040    checkpoint44h_post = checkpoint45
3041    o Fix to restore differentiability:
3042      place at which packages_init_variables is called in
3043      initialise_varia is crucial for reverse control flow.
3044    o modifications in GMRedi to enable stable adjoint
3045      (corresponding modif's in thermodynamics, dynamics)
3046    o added missing hook for sponge layer code in external_forcing
3047    o modified test cost functions
3048    o storing in gad_advection (plus removal of write(0,*)!
3049    o missing headers TR1.h added in convective_adjustment routines
3050    o errorMessageUnit set non-equal zero in eeboot
3051      (conflict on some platforms, e.g. IBM SP3)
3052    o modified carbon verif.
3053    
3054    checkpoint44h_pre
3055    o vertical grid option: allow to put the Interface at the middle between
3056      2 cell-centers ; replace delZ in pkg/kpp by drF.
3057    o GM Advective form: Tracers are advected using the residual transport (=
3058      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3059    
3060    checkpoint44g_post
3061    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3062      results) ; ifdef missing in thermodynamics.F
3063    
3064    checkpoint44f_pre,checkpoint44f_post
3065    o added PTRACERS package
3066      This allows an arbitrary number of passive tracers to be integrated
3067      forward simultaneously with the dynamicaly model.
3068      + Implemented so far:
3069        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3070        - I/O and checkpointing
3071        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3072      + Not implemented so far:
3073        - KPP
3074        - OBCS
3075      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3076        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3077        line in data.pkg.
3078      + This package is disabled by default since it increases storage.
3079    
3080    
3081    o testscript: added -cleanup option
3082    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3083                 b) enable to filter 2D fields.
3084    
3085    checkpoint44e_pre,post
3086    o re-wrote convective adjustment to use pre-calculated weights
3087      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
3088      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
3089      Original calls to convect() still in place.
3090    
3091    chkpt44d_pre,post
3092    o added missing EXCLUDE_MONITOR flags
3093    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
3094      (incompatible typ in MIN/MAX expressions caused problems
3095      on IBM SP3)
3096    o in genmake added variable MAKEDEPEND
3097      plus resetting for case SunOS
3098    o added timer_stats.c routine for IBM SP3
3099    o removed variables in dynamics
3100    !!! I forgot to create tag chkpt44d_pre !!!
3101    !!! But chkpt44d_pre = chkpt44c_post    !!!
3102    
3103    o real fresh water flux implemented with non-linear free-surface.
3104    
3105    chkpt44c_pre,post
3106    o few fix (mask in shap_s2, EmPmR in external_field_load,
3107      USE_NATURAL_BCS in solve_for_P);
3108    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
3109    
3110    checkpoint44b_pre/_post
3111    o merge of relevant stuff from the ecco-branch:
3112      - genmake: removed $S64 overwrite for case SunOS
3113      - pkg/exf: update and corrections for field swapping and obcs
3114      - pkg/ecco: parameter lists for the_model_main, the_main_loop
3115                  harmonized between ECCO and MITgcm
3116      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
3117                      updated checkpointing_lev... lists for obcs
3118      - model/src: minor changes in forward_step, plot_field
3119                   added directive for divided adjoint in the_main_loop
3120      - pkg/mdsio: added mdsio_gl_slice
3121    
3122    o check parameters & config (chkpt44a_pre,post)
3123    o OBC and NonLin_FrSurf.
3124    
3125    checkpoint44
3126    o fix bug in mom_vi_del2uv
3127    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
3128    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
3129    o update AIM experiments (NCEP input files)
3130    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
3131    o added some stuff for AD
3132    
3133    checkpoint43
3134    o added two new advection tests
3135    o added global 4x4 degree ocean test
3136    o added test of H&S94 with free surface on cube
3137    o some final mods for gradient check, adjoint,...
3138    
3139    checkpoint42
3140      Fixed AD-related problems:
3141    o Store directives up-to-date with re-arranged Adams-Bashforth
3142      (mainly thermodynamics.F)
3143    o New store directives for multi-dim. advection schemes
3144      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
3145      * new common block and key passkey
3146      (mainly gad_advection.F)
3147    o Modified store directives for split of dynamics/thermodynamics
3148      for the case ALLOW_KPP
3149    o Cleaned argument list for timestep_tracer.F
3150    
3151    checkpoint41
3152    o re-formatted/added comments in prologues of key subroutines
3153      to work with protex
3154    
3155    checkpoint40
3156    o moved calc_gs, calc_gt and calc_tr1 back to model/src
3157    o added FLT (floats) package from Arne along with demo. experiment
3158    o re-arranged Adams-Bashforth scheme for tracers to allow easier
3159      implementation of forward-in-time forcing terms
3160    o more mods for non-linear free-surface including new variable
3161    o modified multi-dim method to work on cube
3162    o bug fix in KPP (from DM)
3163    
3164    checkpoint40pre9
3165    o added DST advection schemes
3166    o fix MPI bug on SGI's
3167    o modifications for non-linear free-surface
3168    o fixed conditionals for fixed flow/passive tracer only mode
3169    o added tension/strain form of stress tensor
3170    o changes to commenting of arguments for TAF/TAMC
3171    o added/updated many matlab scripts
3172    o added multi-dimensional advection method for tracers
3173      
3174    checkpoint40pre8
3175    o new package rw/
3176      Added method for dumping intermediate local arrays:
3177      mdsio_writetile - same as mdsio_writefield except works from inside
3178                        bi,bj loop
3179      mdsio_writelocal - same as mdsio_writetile except works for local
3180                         arrays
3181      write_local_r? - higher-level wrapper for mdsio_writelocal
3182      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3183      Example given at end of mom_vecinv.F that dumps some local arrays.
3184    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3185      control flux-form versus vector invariant code.
3186      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3187      or genmake -DISABLE ...
3188    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3189      (additional storing is now needed for case vecinv;
3190      currently nothing implemented to switch this storing off
3191      in case fluxform is used since no CPP flag available).
3192    
3193    checkpoint40pre7
3194    o bug fix in dynamics.F
3195      calc_viscosity called before k=1,Nr loop.
3196    o added some #ifdef's ALLOW_PASSIVE_TRACER
3197    o cleaned initialisations in ctrl_map_ini
3198      related to TAF
3199    
3200    checkpoint40pre6
3201    o split dynamics into thermodynamics & dynamics
3202    o corresponding split of calc_diffusivity into
3203      calc_diffusivity, calc_viscosity
3204      (kpp_calc_diff, kpp_calc_visc).
3205    o Added diffkr, kapgm to control variables
3206    o bug fix in gmredi_slope_limit for ldd97
3207    
3208    checkpoint40pre5
3209    o proper initialization of Adams-Bashforth time stepping
3210      + uses forward step for very first step of model (iter=0)
3211    o re-generated *all* output since almost all output is modified by this
3212      change (sorry but we've been putting this one off for about 2 years)
3213      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3214        *not* regenerated since they are already out of date and I don't
3215        want to create the impression that they are suddenly working.
3216    o removed KAP stuff for DEC's
3217    o modified/added many .cvsignore files in */code and */input
3218    o added new expt "solid-body.cs-32x32x1"
3219      + this uses an alternative form of ini_curvilinear_grid.F which
3220        is not necessarily any better than the current one...
3221    
3222    checkpoint40pre4
3223    o added re-initialisations of utrans,vtrans,rtrans in
3224      calc_common_factors which are crucial for TAF.
3225    o extended iMin,jMin range for calc_common_factors,
3226      calc_diffusivity
3227    o added option ALLOW_PASSIVE_TRACER
3228    o a few minor updates and fixes
3229    
3230    checkpoint40pre3
3231    o created calc_gtr1.F for gad package
3232    o split the_main_loop and re-introduced forward_step
3233    o some recomputations of nIter0 for TAMC
3234    
3235    checkpoint40pre2
3236    o Updated to latest branch of AJA, JMC
3237    o Added gradient check package
3238    o Added routines for passive tracer handling
3239    o Added carbon sequestration sensitivity experiment
3240    
3241    checkpoint39
3242     o Modifications and fixes to support TAMC
3243       (mainly missing or wrong directives)
3244     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3245       in addummy_in_stepping
3246     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3247     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3248     o Included following packages:
3249       cal: calendar
3250       exf: external forcing
3251       ecco: essential routines to control use of cal, exf
3252             (NB: this is not the full ECCO environment)
3253     o disabled some packages by default in genmake
3254    
3255    checkpoint38
3256     o see notes_c37_adj.txt
3257     o corrected wrong layer index in external_forcing_t
3258     o replaced the_main_loop/forward_step by the_main_loop
3259     o removed forceoutput from write_state
3260       (replaced criteria for initial/final state)
3261     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
3262    
3263    checkpoint37
3264     o mdsio.F routine split and packaged in pkg/mdsio
3265       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
3266        used unless genmake -disable=mdsio)
3267     o allow a more precise surface-geopotential gradient for the atmosphere
3268       taking into account the change in space of Alpha (=1/rho) at the surface.
3269     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
3270       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
3271     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
3272       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
3273       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3274     o Time-Average diagnostics defined as a pseudo package "timeave".
3275     o pickup files : old pickup (before c35) did not work with new code (c35
3276       and after) unless activating 2 commented lines in initialise-varia.
3277     o Non-Hydrostatic pickup file Pb fixed.
3278     o bug with Rigid-lid version (since c35) fixed.  
3279    
3280    checkpoint36
3281     o implement Crank-Nickelson barotropic time-stepping
3282     o recover Time-Average diagnostics
3283     o fix Pb in checkpoint (PR#19)
3284     o AIM become a standard package ; clean unused CPP_kees
3285    
3286    checkpoint35
3287     o subtantial rewrite of dynamics.f
3288     o allows staggered time-stepping
3289     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3290     o added bottom drag (linear + quadratic)
3291    
3292    checkpoint34
3293     o Modified exchange routines for correct reverse simulation.
3294     o Added verification output to comply with bug fix in impldiff.F
3295       as of c33 (exp2, natl_box).
3296     o Corrected store directives in dynamics.F
3297     o Corrected array boundaries in impldiff.F
3298     o Corrected array dimensions in gmredi.
3299       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3300     o Added routine GLOBAL_SUM_INT to global_sum.F
3301     o Added mdsio_gl.F for ECCO purposes.
3302    
3303  checkpoint33  checkpoint33
3304   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
3305   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

Legend:
Removed from v.1.32  
changed lines
  Added in v.1.848

  ViewVC Help
Powered by ViewVC 1.1.22