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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.858 by jmc, Thu Aug 16 02:34:16 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 pkg/generic_advdiff:
8     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
9      loop range indices for computing vertical advection tendency
10      and do the calculation in the interior only (no overlap) ;
11      for now, only implemented for SOM advection (to save CPU time).
12     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
13    o exch2 adjoint
14      First set of changes:
15      - add exch2 hand-written adjoint templates
16      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
17        This will require cleanup in pkg/autodiff/*.F
18        (changed routines currently kept separate in verif. code/)
19      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
20        that used to hide exch2 or cubed-sphere specific code
21        (commented via 'cph-exch2')
22    o pkg/seaice
23      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
24    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
25       output of global_ocean.cs32x15.thsice .
26    
27    checkpoint59e
28    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
29      for B-grid vector (not yet tested) and C-grid vector (<- only used
30      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
31    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
32      (#ifdef ALLOW_SALT_PLUME)
33    o gather_2d/scatter_2d: removed halo regions
34    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
35      scheme and the corresponding test case (under front_relax dir). For now,
36      only available with Skew-flux form and not yet tested in realistic set-up.
37      adjoint: store directives updated, but gradient checks deteriorated,
38      so maybe GM/Redi adjoint is now broken.
39    o seaice adjoint
40      * add AREA, HEFF, HSNOW as control variable
41        (should not change lab_sea results)
42      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
43    o pkg/seaice:
44      * added computation of saltFlux in seaice_growth;
45        For time being, sea ice salinity is assumed constant
46        contribution of snow flooding to freshening of sea ice is neglected.
47        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
48        defaults to 0.0 in order to maintain backward compatibility.
49        Typical values for SEAICE_salinity are 4 to 10 g/kg.
50      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
51      * added SEAICE_availHeatFrac, which specifies fraction of surface level
52        heat content used to melt or grow ice
53      * commented out cap of HICE: it helps keep ice thinner
54      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
55      * applied OBCS T/S mask to HEFFM sea ice mask
56    
57    checkpoint59d
58    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
59     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
60     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
61    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
62     and change default value of parameter "GM_Small_Number";
63     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
64       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
65       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
66    o pkg/ecco: cost function when applying pkg/smooth to controls
67    o pkg/ctrl: add forcingPrecond run time parameter
68    o pkg/seaice:
69     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
70     - fix bug in metric terms of u-equation in LSR solver (implicit part),
71       changes verification/lab_sea
72     - rearrange implicit part of u-equation in LSR solver to make it easier to
73       read, understand, and debug. This causes changes at the truncation level.
74     - fix (serious) bug in the boundary conditions (sign error in the implicit
75       part) of the LSR solver. Changes all LSR results.
76     - fixed problem with HSNOW initialization to avoid thick snow when AREA
77       is initilized with small values - does not change lab_sea results.
78     - added HsnowFile initialization capability
79    o pkg/smooth: addition to model/src and pkg/ctrl so allow
80     initialization of pkg/smooth and application to control vector
81    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
82    o dependencies: pkg/profiles requires pkg/cal
83    o pkg/profiles:
84     - added option ALLOW_PROFILES_GENERICGRID
85         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
86         that interpolation information (grid points and coefficients) is provided
87         within the netcdf input files.
88         -> sample matlab scripts can be found in MITgcm_contrib/gael
89         that allow you to prepare netcdf input files.
90     - also modified: cleaner include statements, cleaner error print statements,
91       cleaner stops when error, and more tests of the netcdf input files consistency.
92    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
93    o pkg/seaice:
94     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
95       requires a new routine: seaice_diagnostics_fill.F
96     - make sure that seaice does not move if not forced (pressure replacement
97       method, Hibler and Ip, 1995), changes results
98     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
99     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
100       It is turned off by default (=-1.), because it changes the results.
101     - make it possible to read AREA from a file, too.
102    
103    checkpoint59c
104    o add S/R and diagnostics for oceanic mixed-layer depth
105    o move GMRedi call after all vertical mixing schemes (including KPP)
106    o pkg/thsice:
107     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
108      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
109    o pkg/obcs:
110     - bug fix for balance code
111    o pkg/seaice:
112      - allow values of SEAICE_elasticParm > 1
113      - add new parameter SEAICE_evpTauRelax as an alternative
114        to SEAICE_elasticParm
115      - make lsr boundary conditions free slip (by default), changes result
116      - add code for no slip boundary conditions for lsr
117      - set minimum of zeta to zero (and not 4e8) (changes results)
118      - add a cap on AREA after advecting AREA if seaice_growth is not called
119    o change calculation of Visbeck K:
120      - no longer depend on tapering scheme; instead, compute slope (limited
121        by GM_maxSlope). this is equivalent to what was comuted before with
122        clipping or linear tappering.
123      - fix vertical averaging (wrong by 1/2 level)
124      - leave the old version (but will not be maintained) within
125        #ifdef OLD_VISBECK_CALC / #endif
126      - update output of exp. ideal_2D_oce
127    o change error catch in calc_r_star to improve vectorization
128    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
129      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
130    o adjoint:
131      Re-organized adjoint checkpointing according to Matt Mazloff
132      (but with modifs/completions/cleanups)
133      Storing is now bundled into large arrays to optimized I/O
134      (and second step in cleanup of the_main_loop)
135    
136    checkpoint59b
137    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
138      - export/import (between ocean & coupler) fields needed for ocean DIC.
139    o pkg/seaice:
140      - get rid of three more exchanges seaice_calc_viscosities (required
141        different loop boundaries in seaice_lsr and seaice_ocean_stress)
142      - bug fix in seaice_ocean_stress (update of lab_sea required)
143      - reduce loop boundaries to necessary minimum also in seaice_evp
144      - go back to the old way of computing deltaC/Z as the adjoint likes that
145        better
146    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
147      passive tracer to an Age Tracer) + update output.txt
148    o pkg/exf:
149      - implement A-grid / C-grid selection for wind-stress input files.
150      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
151      for now, in exf_bulk_largeyeager04.F only :
152      - change implementation for case where windspeed + 2. components wind-stress
153        are read-in. AND use rhoConstFresh to convert evap.
154    o pkg/seaice:
155      - use correct EXCH_UV for wind-forcing (on A-grid).
156      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
157        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
158    o pkg/exf:
159      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
160      EXF_INTERPOLATION:
161      - merge global_with_exf/code version of exf_interp_read.F
162        to the main code ;
163      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
164        reading the file ; Important: This options needs to be defined to recover
165        previous code.
166        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
167      - no longer loose real*8 precision along the way when using exf_iprec=64.
168    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
169      - change discretisation of evp-solver in order to avoid another exchange
170        (changes lab_sea) and clean up a little
171      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
172        help the adjoint (this also changes the results slightly)
173      - add a few "_d 0" where they had been missing in seaice_evp.F
174      - cleaning up: remove unused seaice_calc_rhs.F
175    o pkg/exf: some cleaning-up:
176      - change various "constants" into runtime parameters
177      - cleaned-up Large&Yeager04 routine which should eventually
178        replace exf_bulkformulae.F (changed names of S/R and CPP)
179        and merged various ALLOW_ATM_WIND options
180     only used with thsice pkg (in thsice_get_exf.F):
181      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
182        which are used when useStabilityFct_overIce=TRUE (= the default)
183      - change default values of ice & snow emissivity and scale downward LW
184        by ice & snow emissivity.
185    o pkg/thsice:
186     fix few little problems, in thsice_calc_thickn.F:
187      - growth vertically (and not laterally) if iceFrac == iceMaskMax
188      - melt only laterally if hIce < hThinIce (as the comments say)
189      and in thsice_extend.F:
190      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
191      - start to form ice as soon as the minimum ice-volume is reachable.
192     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
193      and cpl_aim+ocn
194    o pkg/kpp
195     - move computation of surface related input fields to KPP into a new
196       subroutine kpp_forcing_surf.F
197     - remove wrong (within bi,bj loops) EXCH calls.
198     - little cleaning (add argument myThid in last position, cvs header ...)
199     - for now, fix conservation problem by exchanging KPPviscAz (may not
200       be the best fix)
201    o pkg/seaice
202     - check for inconsistent evp parameter/cpp-flag combination
203     - remove leftover errIO flat for obsolete name list error handling
204    o OpenAD
205     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
206    
207    checkpoint59a
208    o pkg/seaice: some parameter clarifications and a little bit of clean up
209    o pkg/thsice: rename run-time parameters:
210       himin       -> hIceMin
211       himin0      -> hThinIce
212       hihig       -> hThickIce
213       i0          -> i0swFrac
214       transCoef   -> bMeltCoef
215       frac_energy -> fracMelting
216      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
217       with default values (for now) that do not change the results.
218      remove old version of thsice vars advection in pkg/seaice.
219    o in FFIELDS.h:
220      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
221      - make pLoad & sIceLoad always available (but still only used if
222         ATMOSPHERIC_LOADING is #define).
223    o pkg/kpp: replaced _KPP_RL with _RL
224    o bug fixes for vertical diffusivity computations when both KPP and
225        3D diffusivity arrays are used.
226    o pkg/seaice: fix bug in evp solver, while doing that
227      - change (improve?) discretization of stress computations for both
228        cgrid-lsr and evp solver
229      - add a new routine to compute strain rates
230      - the above changes lab_sea results
231      - add no slip conditions for evp solver (off by default), lsr-version
232        may follow
233      - fix exchange for shear at Z-points (does not change lab_sea)
234      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
235        (to force the user to pick a time step since there is not "safe" way
236        of choosing it)
237      - add principal stress diagnostics
238      - rearrange fields for evp a little to avoid having to call a: too many
239        exchanges and b: exchanges for stress trensor components which we do
240        not have.
241      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
242        of evp, complete rewrite for lsr case (latter is does not yet work
243        in all cases)
244    o pkg/kpp: add code to have mixing in shelf ice caverns
245      - add myThid to all kpp routines (long overdue)
246    
247    checkpoint59
248    o pkg/exf:
249      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
250        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
251      - move exf header files from lower_case.h to UPPER_CASE.h ;
252        add missing cvs Header & Name
253      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
254      - add namelist param. selectStressGridPosition, exf_monFreq
255      - retire many _CLIM routines, and remove data.exf_clim
256        + params moved to data.exf
257        + climsst, climsss now handled by exf_set_gen, i.e.
258          climss?period=0 refers to constant field,
259          climss?period=-12 to monthly forcing
260      - split up namelists in data.exf
261    o pkg/seaice:
262      - remove seaice_exch and seaice_exch_uv
263      - remove superfluous exchange of theta
264      - add myThid to seaice_budget_ocean/ice
265      - add new interface for atmospheric wind forcing (C-grid only)
266        + new routine
267        + two new field (taux, tauy for stress over ice)
268        + removed one global field (DAIRN) for C-grid case only
269    o pkg/thsise
270      - 2nd set of modifs for thsice adjoint in conjunction with exf
271    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
272    
273    checkpoint58y_post
274    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
275      vertical diffusivity, similar to that in MOM4; turned on using
276      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
277      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
278    o Added capability for 3D specification of background vertical diffusion
279      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
280      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
281      "data" file that contains the 3D vertical diffusivity coefficients.
282    o ice dynamics (pkg/seaice) with thsice thermodynamics:
283      - add code within pkg thsice to advect & diffuse sea-ice fields
284      similar to (and will replace) what has been added in  seaice_advdiff.F,
285      but: - conserving Mass, Heat & Salt.
286           - better when using non-linear advection scheme (not yet fully tested)
287           - can also be used in atmospheric set-up (for now, only the diffusion).
288    
289    checkpoint58x_post
290    o IO option for global-file compact format:
291      - add options when generating topology (utils/exch2/matlab-topology-generator)
292      - add I/O capability (pkg/mdsio).
293      - adapt utils/matlab/rdmds.m to read this format.
294      for now long-line format not yet supported by pkg/mdsio (& exch2).
295    o shelfice: add a few diagnostics
296    
297    checkpoint58w_post
298    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
299      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
300      (and replace horiVertRatio in NH code).
301      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
302                         and tutorial_plume_on_slope (sensitive to truncation)
303    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
304      directly to drive seaice model (C-grid only)
305    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
306     - reintroduce computation of wind from stress,
307     - compute tau (in exf_bulkformulae.F) from windstress averaged to
308       mass points to avoid tau = 0
309     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
310    o rdmnc.m: make it work with "global" files created with gluemnc
311    o rdmnc.m : some improvements in dealing with singleton dimension
312      (tested on all testreport mnc output files).
313    o genmake2: disable pkg/profiles if netcdf test fails.
314    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
315    o move call to cal_readparms up to make calendar parameters/variable available
316      to all packages
317    
318    checkpoint58v_post
319    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
320      useDynP_inEos_Zc tested.
321    o pkg/exf: changes to properly interpolate/mask/scale initial fields
322    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
323      and portions thereof.  See read_cs.txt for description and examples.
324    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
325      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
326      following the great-circle arc between those 2 points.
327    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
328      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
329    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
330     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
331     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
332     - still needs work (not working with some options ; efficiency to improve)
333       and serious testing.
334     - use this scheme for temperature & salinity in 2 advection test exp.:
335       advect_xy & advect_xz, respectively.
336    
337    checkpoint58u_post
338    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
339    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
340    o testreport: add option "-skipdir" to skip some test.
341    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
342      momentum calculation.
343    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
344    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
345      remove checkpoint.F and the_correction_step.F (no longer used);
346      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
347    o add option (linFSConserveTr) to correct for tracer source/sink due to
348      Linear Free surface
349    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
350    o pkg/thsice: fix reading mnc-pickups
351    
352    checkpoint58t_post
353    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
354    o pkg/mdsio:
355     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
356       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
357       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
358     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
359     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
360       either MDS_READ_FIELD or MDS_WRITE_FIELD )
361     - new S/R (to replace MDSWRITEMETA), which allows to write more
362       informations (variable names, time ...) to meta files.
363     - modify rdmds.m to give back the meta file content.
364    o pkg/diagnostics: change vertical interpolation to be safer, and more
365       flexible (define p-levels to interpolate to in data.diagnostics);
366      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
367       diagnostic pointer.
368    o pkg/seaice: more cleaning up of seaice_growth, added many comments
369    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
370    o fix multi-category seaice:
371     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
372       SEAICE_MULTICATEGORY
373     - fix short wave heat flux
374    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
375       and allow to use EVP solver. Change forward lab_sea: test both EVP
376       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
377    o Initial check-in of lab_sea adjoint
378      (very similar to natl_box_adjoint/code_seaice)
379      * used C-grid and EVP solver
380      * used KPP, GM/Redi
381      * uses inAdExact=.TRUE.
382      * gradient checks fail for both ADM and TLM
383        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
384        f.d. gradients actually seem more problematic than ADM, TLM gradients;
385        issue is related to forward mismatch between g77 an ifort
386    o pkg/seaice: overhaul of thermodynamics
387     - growth.F and groatb.F are replaced by new routine seaice_growth.F
388     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
389     - move a few global fields out of SEAICE.h into seaice_growth.F and
390       make them 2D (FICE/QNETO/ ...)
391     - remove FO (it is the same as QNETO)
392     - introduce a few local fields to avoid modifying external fields such
393       as atemp, etc.
394    
395    checkpoint58s_post
396    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
397      changed exf_set_gen.F so that
398        genperiod=0 means input file is one time-constant field and
399        genperiod=-12 means input file contains 12 monthly means
400    o CG2D: use pre-computed solver main-diagonal (stored in common block);
401      this affects truncation error ; generate new output file for exp. which
402      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
403        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
404        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
405        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
406        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
407        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
408    o start implementation of deep-atmosphere and anelastic formulation
409    o verification: remove 2nd copy of input files and use script "prepare_run"
410      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
411    o mom_common/vecinv/fluxform: fix a few initialisation isssues
412    o profiles: fix for multithreaded case
413    
414    o diagnostics: rename few diags:
415      s/'PRESSURE'/'RCENTER '/g
416      s/'TICE    '/'oceFreez'/g
417      s/'TAUX    '/'oceTAUX '/g
418      s/'TAUY    '/'oceTAUY '/g
419      s/'SWFLUX  '/'oceQsw  '/g
420      s/DIFx/DFxE/g
421      s/DIFy/DFyE/g
422      and add few ocean-forcing diagnostics:
423      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
424    o modifications to pkg/seaice/growth.F and budget.F, which change results of
425      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
426      as actual snow thickness.  It now refers everywhere to effective snow
427      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
428    
429    checkpoint58r_post
430    o modifications to pkg/seaice/growth.F, which change results of
431      lab_sea experiment: fixes pertain to melting snow over open water, to
432      masking EVAP under sea ice, and to using the correct AREA variable for
433      computations of EVAP, PRECIP, HSNOW, and GHEFF
434    o add ability to read bathy, salt, and theta using MNC (off by def)
435    o add flooding algorithm and advection of HSNOW for pkg/seaice;
436      both are turned off by default and do no change any results
437    o seaice advection with pkg/thsice: a step toward the use of non-linear
438      advection scheme, but #ifdef or commented out for now (requires more EXCH).
439    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
440      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
441      in natl_box (affects results @ truncation level: update output.txt)
442    o multi-threading and IO:
443      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
444      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
445        (needed to work with SingleCpuIO): tested in all verif. exp.
446    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
447      affects the results (but none of the verification test uses this scheme).
448    o Adding some pkg/diagnostics capability to pkg/seaice
449      (will certainly be subject to changes)
450    o ctrl: adding new control variables:
451      lwflux, lwdown, evap, snowprecip, apressure, runoff
452    
453    checkpoint58q_post
454    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
455      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
456      high_res_cube configuration by 4% on Columbia.
457    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
458      add (in global_with_exf/code) a version of EXF_INTERP_READ without
459      dynamical allocation (seems to work in multi-threaded).
460    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
461      single CPU io) so that TAF does not have to see EESUPPORT.h
462    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
463    
464    checkpoint58p_post
465    o obcs: stop if obcs is used with useCDscheme = .true.
466    o shelfice:
467     - fix a sign error so that no slip at shelfice interface works
468     - remove stop for combination non-hydrostatic code and shelfice. That does
469       not mean, that the results are correct, but at least they are numerically
470       stable
471    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
472    o added adjoint exch routined for all exch*3d* routines
473      and updated flow directives
474    
475    checkpoint58o_post
476    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
477      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
478    o change controling S/R for writing pickup file (new S/R do_write_pickup)
479      and clean-up reading/writing of pickup files.
480    o fix local version of read/write pickup (NH part) in rotating_tank/code
481    o simplify EXCH interface:
482     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
483     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
484    o added the regrid package
485    o shelfice:
486     - add a simple boundary layer scheme to reduce noise
487     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
488    
489    checkpoint58n_post
490    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
491       local variable (not in common block).
492    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
493      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
494      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
495        to work with SingleCpuIO.
496    o add "_d 0" to real constant of pkg/cfc subroutines ;
497       update exp. cfc_exemple & tutorial_cfc_offline output files.
498    o multi-threading and IO:
499      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
500        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
501      - barrier before and after reading.
502      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
503      - avoid using MDS_WRITELOCAL for LAND pkg output.
504      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
505        common-block variables ; Allows multi-threading with master-thread IO.
506    o change default MAX_NO_THREADS from 32 to 4 ;
507      and stop cleanly when MAX_NO_THREADS is too small.
508    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
509    
510    checkpoint58m_post
511    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
512       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
513    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
514       keep global_ocean.90x40x15 (for AD testing) with former secondary test
515       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
516    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
517        add MITgcm_tutorials (= code + all the tutorials)
518    o ecco, option to compute cost for total ssh (mean+anom)
519    o consistent with addition of ptracer and ssh in pkg/profiles
520    o profiles: adding ptracer and ssh
521    o testreport: change multi-test output-file name
522      (from output.txt.{name} to output.{name}.txt)
523    o profiles: now ok for mutli-tiles case
524    o seaice: add 4 parameters for different advection schemes for area,
525      (effective) seaice thickness, enthalphy, and snow height. Their default
526      is the standard parameter SEAICEadvScheme
527    o calc_gw:
528     - add cosFacU in zonal viscous flux (harmonic.visc.).
529     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
530       of tutorial_plume_on_slope.
531    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
532    o calc_gw: true flux-form, account for horizontal grid spacing.
533      update rotating_tank results, but not plume_on_slope (affected at
534      truncation level, 11 digits).
535    
536    checkpoint58l_post
537    o calc_gw:
538     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
539     - remove side-drag for now (need to fix it); update plume_on_slope results.
540     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
541    o commit code to make SST/SSS weights spatially variable
542      (based on either variable in-situ or variable initial T/S weights)
543    o pkg/ecco:
544      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
545        now based on horizontally varying weights wthetaLev, wsaltLev
546      * cost_averagesflags now returns year indices in addition to day, month
547      * sflux balance is performed on annual basis
548        (sflxumm, sfluxmm2, bal_sfluxmm)
549      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
550        including separate counting and multipliers
551    o pkg/rbcs
552      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
553    
554    checkpoint58k_post
555    o testreport:
556     - always build in dir. "build" (if not there, mkdir build instead of building
557       & running in input)
558     - run in dir run (if it exists), in build otherwise.
559     - call prepare_run (if input/prepare_run exists)
560     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
561    o pkg/exf modifications to interpolation and rotation routines for more
562       reasonable treatment of North Pole singularity: for tracers North Pole
563       value is set to northernmost zonal-mean value, for zonal velocity it is
564       set to zero, and for meridional velocity it is set to northernmost value.
565    o pkg/exf/exf_check_range.F
566     - add tile index to diagnostics and move stop statement to the very
567       end of the routine.
568    o pkg/diagnostics: (diagnostics_main_init.F)
569      define title of isomorphic variables according to the current config.
570    o pkg/thsice with pkg/seaice dynamics:
571    - fix domain of computation (interior only, required for exf) and do exchanges
572    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
573    o towards a standard way of dealing with multi-threading in MONITOR
574      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
575    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
576       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
577    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
578    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
579    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
580       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
581    o tracer advection:
582     - clean-up and simplify calc_common_factors.F
583     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
584       advection subroutine (but still not used within DST advection S/R)
585    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
586    
587    checkpoint58j_post
588    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
589      from file (collects calls previously in FORWARD_STEP)
590    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
591    o adjoint store dir. adjusted accordingly
592    o genmake2
593      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
594    
595    checkpoint58i_post
596    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
597      on wind stress (SEAICEstressFactor defaults to 1.)
598    o Total number of Timers is finite (<=40): comment out 2 non-essential one
599      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
600    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
601      on CS-grid: no longer loosing mass.
602    o exf & curvilinear-grid: no longer modify longitude xC & xG.
603    o pkg/ggl90: fix sloppy output and fix a bug
604    o pkg/seaice: added SEAICEuseEVPpickup parameter
605      - Set to false in order to start EVP solver with
606        non-EVP pickup files when using SEAICEuseEVP
607      - fix sign error in diffusion in seaice_calc_rhs
608    
609    checkpoint58h_post
610    * Modifications for bottom topography control
611      o replace hFacC by _hFacC at various places
612      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
613      o add non-self-adjoint cg2d_nsa
614      o update autodiff support routines
615      o re-initialise hfac after ctrl_depth_ini
616      o works for 5x5 box, doesnt work for global_ocean.90x40x15
617    * Adding verification for 5x5 box (4-layer) bottom topography control
618    
619    checkpoint58g_post
620    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
621       used for mean seasonal cycle, mean diurnal cycle); add an example
622       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
623    o pkg/ggl90:
624      - add parameter (minimum surface kinetic energy)
625      - fix bug (avoiding division by zero)
626    o couple pkg/thsice to pkg/seaice:
627      - modify advection in seaice to accomodate new scalar fields to be advected
628      - only muliDimAdection scheme work with seaice/thsice
629      - mapping of thsice-variables to seaice-variables, back and forth
630      - does not break the verification experiments, but does not give the
631        desired results either
632    o pkg/seaice
633      - make (default) second order advection a bit less confusing?
634    
635    checkpoint58f_post
636    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
637      to pkg/seaice):
638      - new routines thsice_map_exf and thsice_get_exf provide the interface
639      - add an additional formal parameter to thsice_solve4temp
640    o pkg/exf:
641      - add new fields wspeed, snowprecip (to be able to couple to thsice)
642      - correct Stefan-Boltzmann constant
643      - new parameter for longwave surface emittance
644      - separate some stuff from exf_bulkformulae into new routines  
645        exf_radiation, exf_wind
646      - add new parameters and constants: longwave emissivity for ocean, ice
647        and snow, evaporation parameters over ice
648      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
649        either wind from stress or stress from wind
650    o pkg/thSIce:
651    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
652    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
653       and THSICE_CALC_THICKN
654    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
655    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
656      to make debugging easier.
657    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
658    o pkg/bulk_force:
659      - clean-up comments and parameters ;
660      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
661    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
662      generate new output for test-experiment: aim.5l_cs.thSI
663    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
664      testreport accordingly
665    
666    checkpoint58e_post
667    o SEAICE_CGRID adjoint done
668    o R_STAR adjoint implemented.
669      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
670      * need to sort out init. of h0facc, etc.
671    o Make pkg/profile fully independent of ecco,cost, etc. stuff
672      to be able to use it in pure forward.
673    
674    checkpoint58d_post
675    o upgrade simple test-experiment to tutorial example:
676     step.1: duplicate the experiment and (step.2) will remove the old copy.
677      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
678      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
679      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
680      tutorial_global_oce_biogeo    <- copy of dic_example
681      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
682      tutorial_plume_on_slope       <- copy of plume_on_slope
683      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
684      tutorial_global_oce_optim     <- empty for now (David ?)
685      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
686     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
687    o correct a sign problem in cost_scat.F
688    o obcs and ptracers: fix boundary conditions for advections schemes
689      with larger stencil
690    o thsice adjoint: start
691    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
692      completeness
693    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
694      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
695    o ptracers adjoint:
696      * avoid extensive recomputatations
697      * fix missing re-init. of gptr (missed by TAF)
698    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
699      me to turn off the excessive output to STDOUT that this package produces
700    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
701      and add those terms in Vector-Invariant formulation.
702    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
703      if the control period (xx_hfluxperiod etc) is 0
704    o in profiles pkg, clean routines and fix details
705    o in ecco pkg, reading ssh data:
706      fix problem in case the model does not start at iter0=0
707    o fix mnc-pickup/restart for ptracers
708    o new package prifiles:
709      code to compute profile-based cost by Gael Forget
710      (modifs in ecco, ctrl, autodiff)
711    o Benign bug fix in initialization (spotted by M. Mazloff) of
712      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
713    
714    checkpoint58c_post
715    o adjoint: finish NLFS adjoint and provide reference output in
716      verification/global_ocean.90x40x15/results_ad_nlfs
717    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
718      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
719      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
720      with SEAICE_CGRID defined.
721    o move calendarDumps from "data" to "data.cal" and clean-up the code
722      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
723    o add useEXF & useCAL flags (for now, set in hard-coded way)
724    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
725      (were missing in NH mode, and wrong in quasihydrostatic mode).
726      waiting for Chris updated version of calc_gw to add those CALLs.
727    o fix bug in quasihydrostatic S/R ;
728      add a test for this option: global_ocean.90x40x15.qshyd
729    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
730      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
731    o add on/off flag useOffLine for package OFFLINE
732    o seaice:
733      - modify advection so that it works also on the C-grid
734      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
735        problem in multi-tile runs with C-grid
736      - add flags for clipping ice velocities and/or masking solver forcing
737      - fix drag (ocean on ice) formulation and a bug that caused noise in the
738        C-grid solver
739      - added a few comments to seaice_diffusion.F
740      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
741        are now exclusive)
742      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
743        required re-ordering the code a little:
744       + make DAIRN global variable (defined in SEAICE)
745       + move computation of the viscosities eta and zeta into a new separate
746         routine (because I need to recompute them in seaice_ocean_stress.F)
747    
748    checkpoint58b_post
749    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
750      update output.txt of exp. aim.5l_cs.thSI
751    o various mnc cleanups and improvements:
752      + shrink lookup tables by factor of ~4
753      + better error reporting when running out of lookup space
754      + able to handle longer path/file names (up to 500 chars)
755    o adjoint:
756      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
757      - TBD: "hidden" mom_vecinv recomp. in dynamics
758    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
759     (allow to differentiate between forcing components using new integer flags:
760      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
761     and add new flag to put Dissipation tendency out of Adams-Bashforth.
762    o ecco
763      - enable trend removal from SSH anomaly obs.
764    o adjoint
765      - a fix for PmEpR when #undef EXACT_CONSERV
766      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
767      - try to fix "hidden" recomp. in forward_step for NLFS
768        (NLFS seems broken sometimes after I checked it in)
769    o seaice:
770     - add c-grid version of the dynamic solver:
771       + three new routines that are the c-grid substitute lsr, dynsolver
772         and ostres
773       + put a few fields that were local to dynsolver into global common
774         blocks, so that I can move the computation of stresses etc into
775         seaice_lsr (saves coding but may break the adjoint).
776     - replace more hardwired parameters by runtime parameters
777     - add ice masks that mask the rhs of the implicit solvers where there
778       is no ice (commented out in seaice_dynsolver, because i am not sure
779       if this works properly), eventually this should replace the clipping
780       of ice velocities in seaice_dynsolver to +/-40cm/s.
781    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
782      include it only where its needed
783    o move balancing of fluxes before the call of external_forcing_surf
784    o seaice:
785      - correct units of turning angles (now they are really in degrees)
786      - move computation of GWATX/Y out of main routine into dynsolver
787      - initialize GWATX/Y in seaice_init
788    o Apply mask on Fresh-Water flux (needed for SSH forcing).
789      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
790    o seaice: add runtime flags for turning angles (default to zero)
791    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
792      and trend from exf forcing and ctrl control adjustments
793    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
794      (since checkpoint57x_post)
795    o change the default rotation period to 86164.s = the Earth rotation
796    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
797      and based on a reference stratification. Tested within hs94.cs-32x32x5.
798    o seaice advection: add code for choosing between the default (2nd order
799      central differences) and multiDim advection schemes provided by
800      pkg/generic_advdiff
801    o seaice:
802      - removed all references to SEAICE_GRID.h fields from
803        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
804        (cubed-sphere configuration will change a little)
805      - grid computations in seaice_init are obsolete now.
806      - cleaned up code a little so that is easier to read (hopefully).
807      - added new (better?) discretizations of default advection and diffusion
808        (turn on with SEAICEuseFluxForm)
809      - replace 1 in 3d global fields by kSurface in growth.F
810      
811    checkpoint58a_post
812    o seaice:
813      - bug fix in advect.F
814    o shelfice:
815      - separate shelfice load anomaly from pload (breaks with time
816        dependent forcing), => introduce constant field shelficeLoadAnomaly.
817        Its default is 0., but it may be computed more cleverly from (unknown)
818        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
819        done offline. A good approximation of the pressure load anomaly is
820        necessary to avoid large initial adjustment processes underneath
821        deep-reaching shelfice.
822      - small fix in ISOMIP shelfice_thermodynamics
823      - add more sophisticated thermodynamics of Hellmer (1989), this is
824        now the default
825      - give a few constants more intuitive names
826    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
827      if bulk formulae are used in long integration (especially EmPmR). Turn
828      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
829      if balancePrintMean, the imbalance that is substracted is printed to
830      STDOUT.
831    o fix bug (typo) in obcs_apply_eta.F
832    o add a new package shelfice which enables us to model the circulation
833      underneath shelf-ice with draughts of hundreds of meters.
834     - works
835     - to do: + include improved thermodynamics
836              + check whether kSurfC (from model/inc/SURFACE.h) can be used
837                instead of new field kTopC
838              + can we use topoFile, Ro_surf and existing code in ini_depth.F
839                instead of new field R_shelfIce and new code in ini_depth.F
840                and ini_mask_etc.F?
841              + adjust vertical mixing schemes?
842    o seaice pkg:
843     - add a cpp-flag to include a simple formula for a salinity dependent
844       freezing point of sea water at the surface
845     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
846       meridional stresses are now different (and hopefully correct)
847    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
848       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
849       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
850    o pkg/diagnostics: add options and parameters for regional-statistics
851       diagnostics ; define regions by reading a region-mask from a file
852       (might add other options later)
853    o pkg/bulk_force:
854     - add option and parameters to use AIM surface-flux formulae.
855     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
856       others forcing fields (defined in PARM05, parameter file "data") are loaded
857       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
858     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
859     - use the right EXCH call for uwind,vwind (to work on CS-grid).
860     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
861       and parameters (note: calcWindStress replaces .NOT.readwindstress).
862     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
863    
864    checkpoint58
865    o add "--embed-source" option to genmake2 which, when the supporting
866      tools can be compiled (as determined by genmake2) will turn on the
867      embed_files package which then embeds the entire MITgcm source code
868      (*.[fFhc] + Makefile) used for the build within the executable
869      - requested by CNH but off by default
870      - adds a paltry <9MB to the mitgcmuv executable in most cases
871      - only writes the output when useEMBEDSRC in eedata is true
872    o clean up 3-dim. relaxation codes:
873      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
874      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
875      * Thanks to Tom Haine for testing!
876    
877    checkpoint57z_post
878    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
879      affects output (@ truncation level) of exp. plume_on_slope ; updated.
880    o fix the pickup behavior for obcs in combination with ptracers
881    o fix a bug in ptracers_external_fields_load
882    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
883      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
884    o transfered surface NH pressure to eta field (if exactConserv).
885    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
886         and update lab_sea output.txt file.
887    o completing 3-dim. relaxation code: additional term
888         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
889      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
890      * At compile time, in "EXF_OPTIONS.h" set
891          #define  ALLOW_CLIMTEMP_RELAXATION
892          #define  ALLOW_CLIMSALT_RELAXATION
893      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
894          tauThetaClimRelax3Dim = 15552000.0,
895          tauSaltClimRelax3Dim  = 15552000.0,
896      * 3 cases:
897          1) Use a constant-in-time 3-dim. field
898          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
899          3) Real-time relax. to time-evolving prescribed field
900    o Adding Laplacian-type smoothness constraint on
901      initial and boundary (forcing) controls (ic, bc)
902      * enable at compile-time via
903        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
904      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
905      * Absolute scale somewhat unclear so far
906      * no area weighting was included since no other cost term does so far
907    
908    checkpoint57y_post
909    First step for a NLFS adjoint
910    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
911    o new init. routines for calc_r_star, calc_surf_dr
912    o still need to deal with ini_masks_etc
913    o testreport seemed happy
914    checkpoint57y_pre
915    
916    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
917    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
918    o add new offset feature to offline pkg (plus minor cleanup)
919    o cfc fixes for final year of integration
920    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
921      be in GCHEM_OPTIONS).
922    
923    checkpoint57x_post
924    o fix testreport Pb in multiple test experiment.
925    o cleanup our namelist syntax in verification:
926      - make it more F95 standards compliant (some work still needed)
927      - allows the vast majority of our tests to work with gfortran
928    o Non-Hydrostatic:
929     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
930     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
931    o Allow to apply AB on T,S rather than on AB(gT,gS):
932     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
933     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
934       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
935     - need a "clever" read_pickup to restart from the other AB formulation
936    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
937    o remove some unused variables (reduces number of compiler warnings)
938    o adjoint
939      * Disable useVariableViscosity for adjoint for time being
940        (there are a number of extensive recomputations)
941      * Initialize certain variables needed for adjoint
942    
943    checkpoint57w_post
944    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
945                 fix the singleCpuIO RS version of MDSWRITEFIELD
946       and add a WARNING if using globalFiles=T with multi-processors.
947    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
948      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
949    o tracer advection scheme:
950      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
951       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
952       was not very convenient).
953      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
954       (further tests needed for the implicit DST & Flux-Limiter schemes).
955    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
956      and sRef for convenience, handy, when you want to initialize
957      ptracers in a large domain with a constant non-zero value. Also,
958      untangle ptracers_init.F a little.
959    
960    checkpoint57v_post
961    o change dome exp. to use variable viscosity in side-drag terms.
962    o remove all the files from the cfc_offline test since they are now
963      incorporated into tutorial_cfc_offline which has been producing
964      identical results for a few days of testing
965    o add new parameter: sideDragFactor to enable half-slip-side BC
966      and change side-drag S/R to use viscosity from mom_calc_visc
967      (can switch back by setting sideDragFactor=0.); affects results at
968      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
969       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
970    o vorticity & strain are now computed without masking, to account for
971      no-slip-side BC in variable viscosity calculation ; mask is applied
972      anyway later on, before computing advection/coriolis terms.
973    o modify exp4 to test new obcs support for reading from external files
974      and for passive tracers
975    o fix behavior of ptracers_monitor when monitor output is written to a
976      netcdf-file; still not independent of monitor.F (writes in the same
977      file).
978    o change default value of tRef (put a uniform, meaningful value for ocean
979      & atmos) and initialize sRef (was missing, as Martin mentioned).
980    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
981      to be proportional to enstrophy dissipation length.  Thus,
982       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
983      This is now consistent with Smagorinsky and with the manual.
984    
985    checkpoint57u_post
986    o OBCS and PTRACERS: add open boundary support for passive tracers
987      - either use homogenous (pseudo) v.Neumann conditions or prescribe
988        OB-values from file; this is not different from the way theta and salinity
989        are treated
990      - however, Orlanski-radiation conditions are not supported, and the model
991        will stop if you use pTracers and Orlanski at the same time.
992      - beefed up the rountine obcs_external_fields_load: now only those open
993        boundary values are overwritten with values from files for which there
994        are really files, otherwise the OB-fields remain untouched. This makes
995        it possible to use different OBs at different ends of the domain (as
996        with EXF)
997    o reduce number of exch calls in shap_filt (s2).
998    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
999      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1000    
1001    checkpoint57t_post
1002    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1003    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1004      same truncation, independent of the face number: affects affects several
1005      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1006    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1007      note that biharmonic viscosity + no-slip was not tested in any experiment.
1008    o fix bug in non-linear free-surf side-drag ; generate new output for
1009      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1010    o make mnc honor the writeBinaryPrec flag for most kinds of output
1011    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1012    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1013      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1014    o add brackets in multi-terms sum to get same truncation, independent of
1015      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1016      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1017    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1018      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1019      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1020      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1021      Suggested values of viscosity parameters found in mom_calc_visc.
1022      Many new viscosity diagnostics available.
1023    
1024    checkpoint57s_post
1025    o Add clearing-house for viscosity calculations, mom_calc_visc and
1026      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1027      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1028      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1029      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1030      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1031      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1032      ViscAhStrain and viscAhTension are now retired.
1033    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1034    o In response to JMC's bug report, genmake2 now ignores any soft-links
1035      that it finds in the *current* directory when searching for files.
1036      Soft-links found in any other source directories will still work as
1037      they did before.
1038    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1039      a C routine to unlimit the stack size
1040    o mnc-ify pkg/aim snapshot vars
1041    o mnc-ify pkg/land as requested by Daniel
1042    o various changes to mnc including:
1043      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1044      - output can now be grouped so that all files within a group
1045          change the ITER portion of their names in lock-step together
1046      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1047          and works with both EXCH1 and EXCH2 (but needs more testing)
1048      - writing works for all verification test cases w/ g77 on Linux
1049    
1050    checkpoint57r_post
1051    o make MNC variable initialization happen earlier
1052    o add diagnostics for (almost) each term of the momentum Eq.
1053    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1054    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1055    o remove MINIMAL_TAVE_OUTPUT option ;
1056      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1057    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1058      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1059    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1060    o add time-dependent SST, SSS control
1061    o cost terms in ecco/ modularized (new cost_generic.F)
1062    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1063    o new infrastructure for seaice model vs. obs misfits in seaice/
1064      * driver from the_main_loop.F is seaice_cost_driver.F
1065      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1066      * gradient check in Exp. 6a of natl_box_adjoint/
1067    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1068      (see README file)
1069    
1070    checkpoint57q_post
1071    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1072    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1073      - bug was reported by Jean-Michel and Ian Fenty
1074    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1075      update exp. cpl_aim+ocn output.
1076    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1077      Needed for high-res. runs with large global files
1078      to be able to limit tapelev size
1079    o Changed some tests for adjoint:
1080      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1081      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1082      * global_ocean.90x40x15/ back to default 3-level checkpointing
1083    o Modifications to enable scripted COMMON to MODULE conversion
1084      * verification/OpenAD/code/ has necessary scripts and description;
1085      * converts, compiles and runs successfully;
1086    
1087    checkpoint57p_post
1088    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1089    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1090      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1091    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1092    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1093      (was already the case for dissipation with mom_vecinv,
1094       and also the case for grad.PhiHyd when staggered-timeStep)
1095      This will allow to put dissipation out-off the AB time-stepping.
1096     Unfortunately, affects truncation error. Update output of exp. that "fails"
1097      (cg2d matching number) and leave the others for later: front_relax(10),
1098      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1099      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1100    
1101    checkpoint57o_post
1102    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1103      (2) its ready to be documented during the 20050801 DocFest
1104    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1105      for ideal_2D_oce and lab_sea on linux_ia32_g77
1106    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1107      in global1x1_tot/code_seaice_adj to access indices 32, 33
1108      (worth another tag)
1109    
1110    checkpoint57n_post
1111    o adding precip control xx_precip 32
1112    o adding swflux control xx_swflux 33
1113    o Replacing 10 forcing penalty cost routines by 1 generic.
1114    o Implementing partitioning in time-mean and variable adjustment
1115      for atmos. state.
1116    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1117    o in natl_box_adjoint:
1118      * updated exp 1 to 10
1119        (but does not have time-mean vs. variable split results yet)
1120    o updated global1x1/*_seaice_adj/
1121      to incorporate latest changes
1122    o enable useSingleCpuIO for mdsio vector routines
1123      (applies in particular to tapelev I/O)
1124    o removed inefficient K-loop in all active_file*control*.F
1125    
1126    checkpoint57m_post
1127    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1128      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1129    o pkg/exch2: filling of face-corner halo regions is optional
1130      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1131    
1132    checkpoint57l_post
1133     tag before updating tutorials (pre-release-2)
1134    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1135       for output and interpolation of input fields onto model grid)
1136    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1137       Affects results of exp. rotating_tank ; update output.txt.
1138    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1139          and taking the square quantity and/or using a fraction-weight field.
1140    o fix aim_diagnostics_init.F mate numbers.
1141    o add mnc output capability to diagnostics/diagstat and update
1142      our cvsignore files for the ACSII output generated
1143    
1144    checkpoint57k_post
1145    o lab_sea now uses diagnostics package and provides a suite of
1146      new EXF diagnostics output.
1147    
1148    checkpoint57j_post
1149    o exf
1150      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1151        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1152        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1153      * extended diagnostics output
1154        - now includes all EXF variables
1155        - hs, hl moved to common block
1156        - separate S/R for diagnostics, called after ctrl vector is added
1157        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1158        - EXFqnet contains true Qnet (i.e. includes qsw)
1159      * updated verif. lab_sea, global_with_exf
1160      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1161        to ensure that diagnostics sees a true EXFqnet
1162    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1163    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1164      several times with different frequencies.
1165    o mnc-ify the thsice package as requested by Daniel Enderton
1166      - the monitor--MNC output needs work
1167      - many attributes need to be added (most are currently blank)
1168    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1169      - many attributes need to be added (most are currently blank)
1170    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1171    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1172    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1173      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1174         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1175    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1176     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1177    
1178    checkpoint57i_post
1179    o Diagnostics package was changed: diagnostic allocation is now deactivated
1180      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1181    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1182      add 1rst Order upwind vertical Shear.
1183    o add a quick fix for A/B checkpointing in OFFLINE mode
1184    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1185      end-run around the C/Fortran linking horror in eesup/src/timers.F
1186    o added pkg/runclock: allows user to terminate run based on wall clock
1187    o added non-hydrostatic scaling parameter: nh_am2
1188    o pkg/my82: futile attempt to make results compiler-independent by adding
1189      some "_d 0", etc. no effect.
1190    o for mnc output, fill the 'T' coordinate var with myTime and create a
1191      separate 'iter' variable for iteration count
1192    o pkg/diagnostics:
1193      add new capability: output of Global/Regional & per-level statistics ;
1194      tested against monitor output (including land & thSIce) on various exp.
1195    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1196    
1197    checkpoint57h_done
1198      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1199      data.diagnostics, data.gchem, data.ptracers) is done.
1200    
1201    o pkg/diagnostics: prepare for Global/Regional statistics.
1202      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1203    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1204      and rename it: DIFFERENT_MULTIPLE
1205    
1206    checkpoint57h_post
1207    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1208    o pkg/diagnostics: change output frequency, now in seconds (instead
1209      of Nb of iterations). This requires to change data.diagnostics.
1210    checkpoint57h_pre
1211    
1212    o in mnc, let the user create the output dir if both mnc_outdir_date
1213      and mnc_outdir_num are false
1214    o add fflags() to pkg/diagnostics which allows one to specify, on a
1215      per-file basis, the file precision [default behavior is unchanged]
1216    o added diagnostics to pkg/kpp, including computation of mixed layer
1217      depth based on a temperature/density criterion
1218    o updated verification/natl_box to test the new pkg/kpp diagnostics
1219    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1220    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1221    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1222      not mnc -- this mistake was found by JMC and is now corrected
1223    
1224    checkpoint57g_post
1225    o add Adams-Bashforth 3rd Order time stepping:
1226      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1227      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1228    checkpoint57g_pre
1229    
1230    o make lambda[Theta,Salt]ClimRelax spatially varying
1231      (default remains spatially uniform constant based on tau)
1232    o added new control variables
1233      * init. uVel, vVel, etanN
1234      * lambda[Theta,Salt]ClimRelax
1235    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1236      (suggested by G. Forget)
1237    
1238    checkpoint57f_post
1239    o add parameter "baseTime" = model base time = time at iteration zero
1240      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1241      account for baseTime shift
1242    o move Coriolis arrays from PARAMS.h to GRID.h
1243    checkpoint57f_pre
1244    
1245    o mnc-ifying the seaice package
1246    o introduced an alternative length scale calculation for use in the limiting
1247      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1248    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1249    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1250      as well as grad(vort3).  Made it compatible with both approximate form
1251      for the cubed sphere and full form of these gradients.  Added flag
1252      useFullLeith to select between approximate and full form.  
1253    o add "d0" in getcon.F to reduce differences between compilers/platforms
1254      update output.txt of exp. fizhi-gridalt-hs
1255    o change port_rand funtion to allow to set the seed.
1256    o fix obscure MNC bug involving conversion between reals and integers
1257      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1258        new version is now more standards-compliant
1259    o adjoint-related modifications
1260      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1261      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1262      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1263    
1264    checkpoint57e_post
1265    o Adding eddy stress controls a la Ferreira et al.
1266    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1267    
1268    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1269      update output.txt of exp. fizhi-gridalt-hs
1270    o add more "Z" dimensions and associated coordinate vars to MNC
1271    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1272    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1273      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1274      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1275      months and years.  Requires pkg/cal.
1276    o diagnostics: add pickup functionality
1277      - off by default for backwards compatibility
1278      - current version only uses MDSIO -- MNC will be added
1279    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1280    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1281    
1282    checkpoint57d_post
1283    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1284    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1285      output from the diagnostics package
1286    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1287    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1288      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1289    o add coordinate variables to the MNC output from the diagnostics package
1290    o change MNC-flags default value: true when useMNC=TRUE
1291    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1292      the ability (off by default) to read the grid information using MNC
1293    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1294    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1295    o do snap-shot diagnostics at the middle of the time-interval (instead of
1296      at the end).
1297    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1298      new test for AIM with thSIce + slab-ocean
1299    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1300    o move state variable diagnostics to the beginning of the time step ;
1301      (note: still needs some work specially for snap-shot diagnostics)
1302      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1303    
1304    checkpoint57c_post
1305    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1306    o generate new output.txt files on faulks with g77 & the new -ieee option
1307    checkpoint57c_pre
1308    
1309    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1310      update output.txt of exp. global_ocean.90x40x15
1311    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1312      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1313    o add saltFlux(+File) forcing capability with periodicExternalForcing
1314    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1315    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1316    o improvements for the MNC output from DIAGNOSTICS:
1317      - correct handling of the unlimitied dimension
1318      - all dims now have associated coordinate variables
1319      - variables located at U, V, and Corner ("Z") points are now written
1320        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1321        *all* data points are output
1322    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1323    o added pkg/seaice/seaice_monitor.F
1324    o mdsio_readfield.F can now read files visible only to master MPI process.
1325    o pkg/seaice: some test code for ice-modified ocean stress
1326    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1327      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1328      spurious negative numbers for precipitation and humidity.  Will cause
1329      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1330    o pkg/ctrl/
1331      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1332        May be enabled via doPackDiag
1333      *  introduce z-scaling of
1334         + gradient (doZscalePack) and
1335         + control (doZscaleUnpack)
1336    o pkg/mdsio/
1337      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1338      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1339    
1340    checkpoint57b_post
1341    o simplify options in diagnostics_fill arguments (remove weird combinations)
1342    o fix MNC coordinate variables so that they now contain per-face index
1343      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1344      general, EXCH2 grids are only aligned to a "local" coordinate system
1345    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1346    o Implement instantaneous output within pkg diagnostics:
1347      setting a negative frequency in data.diagnostics produces
1348     "snap-shot" output (as opposed to time-average if freq > 0)
1349    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1350      NOTE: change ptracer diagnostics name: use 2 characters to work with
1351            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1352    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1353      becomes the coordinate variable for the 'T' dimension
1354    o add CF-style coordinate variables to MNC
1355      - just a first cut:  numbers are meaningless on the cubesphere and
1356        missing along the T axis but otherwise it works!
1357    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1358    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1359    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1360      this is based directly on what the model compute, so that the content of
1361      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1362    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1363    o clean up build options files for SunOS, in particular
1364      - remove -traditional from xmakedepend
1365      - change -xarch=v9 to -xarch=native for f77
1366      - restore use of make (not gmake)
1367      - add CC=gcc if using g77
1368    o changes per discussion of AM, JMC, & EH3 today:
1369      - move redundant "grid" variables out of "state" -- in preparation of
1370        creating proper CF-style coordinate variables and in recognition
1371        that any/all grid variables can be easily copied (eg. w/NCO) from
1372        the grid files into any of the other NetCDF files
1373      - *always* output grid variables with MDSIO (this will eventually be
1374        changed)
1375      - output MNC grid file if useMNC is true
1376    o every instance of _END_MASTER() has been found and replaced with
1377      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1378      preprocessors
1379    o re-arrange diagnostics pkg initialisation:
1380     - allow each package to extend the available diagnostics list
1381     - add some checking and fix small problems (multi-threaded, ...)
1382     - new S/R diagnostics_fill (replace fill_diagnostics):
1383       look through the short list of active diag. (instead of the long list)
1384       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1385    
1386    checkpoint57a_post
1387    o this set of changes restores TAMC compatibility
1388      tested for global_ocean.90x40x15 adjoint on trough
1389      (what a pain)
1390    
1391    checkpoint57a_pre
1392    o some modifs in tools/build_options for sunos
1393    o call ctrl_pack for ctrl at end for optimcycle=0
1394    
1395    checkpoint57
1396    o add horizontal bi-harmonic viscosity for vertical velocity
1397      - new parameter viscA4W (defaults to viscA4)
1398      - affects only non-hydrostatic code
1399      - to be done: no-slip lateral boundary conditions
1400    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1401    o implement Implicit Vertical advection for pTracers
1402    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1403      (implemented also for implicit vertical diffusion & advection)
1404    o OBCS: extend application of tracer open boundary conditions
1405      to a strip beyond the boundary of width Olx/Oly
1406    o add call monitor to TAF set of required calls (flow directives)
1407      and include in natl_box_adjoint
1408    o untangle a few ifdefs related to cost, ctrl, autodiff
1409      untangel a few ALLOW_ECCO_OPTIMIZATION
1410    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1411      (theta2, salt2 in ecco_cost_weights)
1412    
1413    checkpoint56c_post
1414    o OBCS as control variables
1415      - update ctrl_ad_diff.list, obcs_ad_diff.list
1416      - remove balance of obcs controls from default
1417      - fix index bug nobcs in ctrl_init
1418      - fix dummy fields filen in ctrl_pack
1419      - add dummy weights for obcs
1420    o lsopt: comment out fort.94 output
1421    o optim:
1422      - remove unnecessary header files
1423      - adjusted namelists
1424      - add xerbla.F to Makefile
1425    o exf:
1426      - multiple modifications of exf_check_range
1427      - unit change in exf_init_runoff from [m/year] to [m/s]
1428    o mdsio:
1429      - i/o-vector change debugLevel from debLevA to debLevB
1430    
1431    checkpoint56b_post
1432    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1433      is called from DO_THE_MODEL_IO
1434      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1435      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1436      - clean up PTRACERS_WRITE_TIMEAVE a little
1437    o add another verification experiment that tests both the cfc-pkg and
1438      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1439      reactive tendencies treated inline with regular timestepping
1440    o testreport previously did a lousy job of comparing small numbers, so
1441      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1442      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1443      testreport.
1444    o ptracers_monitor: bug fix for MPI
1445    
1446    checkpoint56a_post
1447    o GCHEM: finish reorganizating the package
1448      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1449        (introduces another 3D-array for each passive tracer, but only if
1450        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1451        gchemTendency is not needed because the timestep is done separately)
1452      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1453      - GCHEM is now---more or less cleanly---separate from PTRACERS
1454      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1455        so clear to me how that should be done in a general way.
1456    o CFC: improve formatting of output in CFC_ATMOS
1457    o PTRACERS:
1458      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1459        that ALL experiments with ptracers enable can be checked. This makes
1460        GCHEM_MONITOR obsolete.
1461      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1462        monitorFreq
1463      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1464    o add PTRACERS (PTR0[1-5]) to testreport output
1465    o exf_check_range:
1466      * default changed to .TRUE.
1467      * will check values for niter0 if debLevA, every timestep if debLevB
1468      * STOP in exf_check_range if 'out of range'
1469      * range chosen generous to allow for potential extema
1470      TBD: a version with stricter range
1471           permitted range would be runtime parameters
1472    o GMredi:
1473      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1474      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1475      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1476    o GCHEM:
1477      - move call to GCHEM_FORCING_SEP, so that it is now called before
1478        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1479      - introduced a useGCHEM runtime flag and applied it everywhere.
1480      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1481        this flag is now only visible within GCHEM-pkg routines.
1482      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1483        be replaced by a 3D array that is computed before thermodynamics; for
1484        this, the tracer ID iTracer had to be included into the parameter list
1485        of ptracers_forcing
1486      - set up forward_step to call gchem_forcing, that will replace
1487        gchem_forcing_int in ptracers_forcing
1488      - cleaning up
1489    o small cleaning of exch2: remove files that are also in eesupp/src
1490    
1491    checkpoint56
1492    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1493    o mnc: cleanup "full" files--fixes out-of-memory problem
1494    o ECCO-GODAE
1495      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1496      * fully merged and updated from SIO code
1497        windstress sign change affects
1498        - exf_inscal_[u/v]stress
1499        - sign of xx_tau[u/v] adjustments
1500        - signs in cost_scat
1501      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1502      * natl_box_adjoint updated and compressed
1503      * 2-level checkpoint switch added
1504        (tested in EXP. 1 of natl_box_adjoint)
1505      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1506    o SVD
1507      * first complete, non-hacked version for SVD calculations
1508      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1509        performed via direct access files admtlm_vector.it????
1510        (via ctrl_[un]pack)
1511      * optimcycle is used for ARPACK iteration counter
1512        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1513      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1514        and add linear transforms where necessary
1515      * controls are initial/final SST, SSS (can be extended; need to check
1516        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1517    o mdsio: filename info to both stderr, stdout
1518    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1519      from sign change
1520    
1521    checkpoint55j_post
1522    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1523      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1524    o add consistent build directories and .cvsignore files to verification
1525    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1526    o make all subroutines 30 or less characters in length for certain older
1527      compilers to work (a thorough search only turns up two routines in
1528      pkg/ptracers)
1529    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1530      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1531    
1532    checkpoint55i_post
1533    o change arrays for total vertical diffusivity (2.D if explicit,
1534      3.D if implicit) ; each ptracer uses its own background value.
1535    o added mnc/NetCDF output capability to ocn_compon_interf
1536      - added bits to verification/cpl_aim+ocn so that it can run on
1537        ITRDA and other clusters without the mpirun "-wd" option
1538    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1539      configuration
1540    o give MNC the ability to create additional files rather than
1541      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1542      - the default is just less than 2GB which is a practical limit
1543        on many systems
1544    o Compute the non-local term using either KPP vertical diffusivity (=default)
1545       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1546    
1547    checkpoint55h_post
1548    o add verification test "vermix"
1549    o remove all the *_ioinc flags and replace with the single global
1550      outputTypesInclusive flag
1551    o allow to set a vertical profile of vertical diffusivity for T & S
1552    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1553    o useMNC moved from data.mnc to data.pkg
1554    
1555    checkpoint55g_post
1556    o Renaming carbon AD experiments to comply with testreport conventions
1557    o Updating adjoint of Held-Suarez hs94.1x64x5
1558    o Fixing directives for non-ECCO forward_step, after ECCO directives
1559      have been fixed to avoid recomp. of do_oceanic_phys
1560      Works well for global_ocean.90x40x15,
1561      but recomp. issue remains for carbon
1562    o Updating adjoint output for natl_box_adjoint after
1563      pkg/ecco has been modified (see taga c55d_post)
1564    
1565    checkpoint55f_post
1566    o rename to timeave_init_fixed
1567    
1568    checkpoint55e_post
1569    o some delicate re-shuffle of store directives to avoid one
1570      extra call of do_oceanic_physics
1571      affects ecco_the_main_loop.F, do_oceanic_physics.F
1572      checkpoint_lev1_directives.h
1573    o NB: this may break global_ocean adjoint temporarily,
1574      but it is clear how to fix it. Will do later, need this now.
1575    
1576    checkpoint55d_post
1577    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1578    o ecco_cost_weights is modified to 1x1 runs
1579    o modifs to allow observations to be read in as
1580      single file or yearly files
1581    o enable to read exf forcing fields as either
1582      single file or yearly files (flag useExfYearlyFields)
1583    checkpoint55d_pre
1584    
1585    o switch between 2-level and 3-level checkpointing
1586    o add ability of MNC to write local and "partial" (eg. 2D slices where
1587      the full 3D field is never actually stored) arrays to NetCDF files
1588      with the correct (that is, the complete multi-dimensional) set of
1589      array indicies
1590      - used in mom_vecinv() to write the diagFreq output
1591      - tested (demonstrated) in verification/aim.5l_cs
1592    o further mnc-ification
1593      - add verification/lab_sea to the list with mnc setups
1594      - fix undefined mnc v-names in cd_code
1595      - add kpp to mnc output (both snapshot and timeave)
1596    o non-hydrostatic code
1597      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1598        in calc_gw.F
1599      - defaults to viscAh
1600      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1601        friction or Leith) in non-hydrostatic mode, as long as there is
1602        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1603    o pkg/cost
1604      extend simple cost functions to treat time mean quantities
1605      (T,U,V) via cost_accumulate_state from cost_tile
1606    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1607        be 2 times larger than the minimum size the advection scheme requires.
1608        now get a perfect conservation of salt in advect_cs test-exp (updated)
1609    o GGL90 (Gaspar's TKE mixed layer)
1610      - add horizontal diffusion of TKE, requires exchanges in
1611        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1612        default. In OPA there is no horizontal diffusion of TKE but the
1613        mixing coefficients are computed from a horizontal average of TKE of
1614        6 points or so. I think that diffusion has a little more physical
1615        justification.
1616      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1617        was in vain)
1618      - mask tke-variable in ggl90_init
1619    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1620    o fix biharmonic diffusion on CS-grid.
1621    o more obcs stuff
1622      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1623        for reading boundary values. This routine is called from
1624        obcs_prescribe_read
1625      - updated obcs_check
1626      - changed sponge layer relaxation parameter units for days to seconds
1627      - turned off sponge layer by default
1628      - changed argument list of OBCS_CALC to myTime+deltaTclock
1629      - fixed about 35 bugs in obcs_external_fields_load
1630    
1631    checkpoint55c_post
1632    o obcs stuff
1633      - new runtime flags useOBCSprescribe, useOBCSbalance
1634      - re-arranged obcs_calc
1635      - moved exf_getobcs to obcs_prescibe_read
1636        obcs_prescibe_read is called after ORLANSKI stuff
1637        and independent of it (executable can contain all).
1638      - updated obcs_check
1639      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1640        These may be necessary only if tangential velocities are
1641        prescribed at OB, not sure, needs testing.
1642    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1643      which simplifies the calls and passes the ifc check-bounds test
1644    
1645    checkpoint55b_post
1646    o add a 2D scalar, Z location, exchange_2 routine.
1647    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1648      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1649      affects advect_cs results (for the wrong reason): update output.txt
1650    o use a more standard discretization for biharmonic viscosity ;
1651     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1652      affects results of dome set-up: update output.txt
1653    o fix gad_advection.F (CubedSphere part), back to version 1.23
1654    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1655    
1656    checkpoint55a_post
1657    o merged code to
1658      * prescribe/read time-dependent open boundaries
1659        (works in conjunction with exf, cal)
1660      * sponge layer code for open boundaries
1661      * each boundary N/S/E/W now has its own CPP option
1662        (healthy for the adjoint)
1663    
1664    checkpoint55
1665    o up-to-date adjoint of previous breaks
1666      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1667      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1668      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1669      - carbon: * remove tr1-related adjoint verification
1670                * add ptracer as control variable
1671    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1672      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1673    
1674    checkpoint54f_post
1675    o in verification/carbin/ remove experiment related to
1676      ALLOW_PASSIVE_TRACER (array tr1 etc)
1677      code_ad/ input_ad/ results_ad
1678    
1679    o add two new packages
1680      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1681        + subject to optimization (memory)
1682      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1683        + subject to reordering (many GOTOs in the original code)
1684        + so far opps is called for every (i,j) point, and then operates in
1685          the vertical; one may want to reorder the scheme in order operate in
1686          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1687          fields)
1688    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1689      - all verification tests compile and run with linux_ia32_g77
1690      - defaults are compatible with current input files--nothing
1691        should change if you were not previously using MNC
1692      - MNC output has been added in numerous places (eg. timeave)
1693        but there are still a few writes not yet do-able with MNC
1694        (this is in progress)
1695      - flags now allow for either/or/both use of MDSIO and MNC and
1696        documentation will soon follow
1697      - numerous small formatting cleanups for ProTeX
1698    o add version info (via BUILD_INFO.h) to MNC and stdout
1699    
1700    checkpoint54e_post
1701    o add two new packages
1702      - pp81 (Packanowski and Philander, 1981), Richardson number and
1703        stratification dependent mixing
1704      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1705      - these scheme operate in a similar manner as KPP (without ghat, of
1706        course), however there is only one diffusivity that is used for both
1707        temperature and salinity (and passive tracers)ç
1708    o add offline package
1709    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1710      provided by Stephanie Dutkiewicz
1711    o genmake2: add ability to search for C compilers and cleanup test output
1712      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1713    
1714    checkpoint54d_post
1715    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1716    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1717      leading to additional shift by 5 days each year of integration
1718       (i.e. leading to considerable offset over the years)
1719    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1720    o start with no AB and no initial filtering (staggerTimeStep):
1721      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1722    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1723      (external loading & cpl import/export stay in forward_step.F)
1724    o update coupling interface to work with new staggerTimeStep
1725    o change MDSIO ptracers_pickup.
1726    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1727    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1728    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1729    
1730    checkpoint54c_post
1731    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1732      this affects (truncation error) output.txt of test-exp:
1733       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1734    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1735    o change Qnet to always be the net heat flux, (+upward).
1736      affects (truncation error) output of natl_box exp.: updated
1737    o define the max number of passive tracers in PTRACERS_SIZE.h
1738    o start to test mnc routinely in exp0
1739    o add sea-ice loading (sIceLoad) as a new forcing field.
1740    
1741    checkpoint54b_post
1742    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1743       impressive on Altix and Opteron systems)
1744    o diagnostics can now write NetCDF files through the mnc package
1745    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1746    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1747    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1748      affects (truncation error) output of lab_sea & natl_box exp.: updated
1749    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1750    
1751    checkpoint54a_post
1752    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1753    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1754    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1755    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1756      + internal_wave (shift in writing cg2d_ini_res)
1757    checkpoint54a_pre
1758    
1759    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1760      - modified verification/lab_sea and natl_box_adjoint accordingly
1761    
1762    checkpoint54
1763    checkpoint53g_post
1764    o prepare splitting of thermodynamics: store convect.counter in common block
1765    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1766      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1767    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1768    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1769    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1770    o restore adjointability
1771    
1772    checkpoint53f_post
1773    o modifications that affect AIM experiment results (update output.txt):
1774      - no advection of S at top interface Nr (pkg/generic_advdiff)
1775      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1776    o AIM pkg:
1777      - include stability function into surf.Flux derivative relative to Tsurf
1778      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1779    
1780    checkpoint53e_post
1781    o merged cylindrical coord configuration
1782    o added rotating_tank experiment
1783    checkpoint53e_pre
1784    
1785    checkpoint53d_post
1786    o faulks upgraded: re-generate output.txt that have changed:
1787       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1788    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1789    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1790    o added Sadourny discretization of Coriolis
1791      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1792      - re-enabled use of omega3 (useAbsVorticity)
1793    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1794      vector-invariant equations
1795      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1796    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1797      hopefully without new bugs
1798      - still to do: biharmonic friction for non-hydrostatic w
1799    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1800    o regenerated output for global_ocean_ebm (using -ieee)
1801    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1802      of mom_common/
1803      - simple re-arrangement of instructions within computing loop
1804    checkpoint53d_pre
1805    
1806    checkpoint53c_post
1807    o new version of coupler for AIM+thSIce and Ocean models
1808     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1809     - land: change Evaporation of snow
1810     - aim with thSIce: fix bug in snow-precip.
1811    o changes to calc_gw.F
1812     - bug fix for w^2 term near the bottom boundary
1813     - (hopefully) improve the lateral slip boundary condtions for use with
1814        partial/looped cells
1815      - because the bug fix changes two verification experiments anyway (exp5
1816        and plume on slope), change the lateral boundary condition from half slip
1817        to the value of no_slip_sides
1818    o ebm package wasnt quite up to the parallel task. Fixed that.
1819    o Adjoint of EBM package + verification
1820      * TLM OK
1821      * ADM not sufficient accuracy yet (needs further testing)
1822    
1823    checkpoint53b_post
1824    o Commiting new energy balance model to repository
1825      * package is pkg/ebm
1826      * verif. is verification/global_ocean_ebm
1827      * references are in ebm_driver.F
1828    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1829    C        Global thermohaline circulation. Part I:
1830    C        Sensitivity to atmospheric moisture transport.
1831    C        J. Climate 12(1), 71-82
1832    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1833    C        Global thermohaline circulation. Part II:
1834    C        Sensitivity with interactive transport.
1835    C        J. Climate 12(1), 83-91
1836    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1837    C        Destabilization of the thermohaline circulation
1838    C        by atmospheric eddy transports.
1839    C        J. Climate 7(12), 1870-1882
1840    o Will need long integration testing.
1841    checkpoint53b_pre
1842    
1843    o created pkg/mom_common in preparation for variable viscosity code
1844    o renamed and split ini_mnc_io
1845    o pkg/land: only liquid water can diffuse or run-off
1846    o AIM using land: soil wetness availability account for snow
1847    o added printMapIncludesZeros to EEPARMS namelist
1848    
1849    checkpoint53a_post
1850    o restore TAMC compatiility for exf_constants.h
1851      (no usage of _d in .h)
1852    o Additional storing in KPP in an attempt to fix
1853      TAMC problem with adjoint of KPP code.
1854      (no success...)
1855      Identical code works fine with TAF.
1856    o Fixed verification/natl_box_adjoint experiments.
1857      Initial conditions for Experiments 4 and 5 are now
1858      set to "SEAICE_initialHEFF=0", which is more reasonable,
1859      and hence gives results closer to that of Experiment 2.
1860      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1861    
1862    checkpoint53
1863    o stable checkpoint with up to date adjoint
1864      TLM tests only run for 1st grdchk at the moment. Its unclear if
1865      this is a code problem or a problem with resetting code for g_
1866      variables that is being autogenerated wrong.
1867      Otherwise:
1868       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1869       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1870         are both still in chaos following their security messes.
1871    
1872    checkpoint52n_post
1873    o various build (mostly genmake2) changes including:
1874      - ability to build/run more easily within Cygwin and MacOS X
1875      - more complicated Makefiles with a stronger dependence on Gnu Make
1876    o pkg/seaice modifications
1877      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1878        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1879        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1880      - changed proxy for geostrophic velocity and updated
1881        verification/lab_sea/results/* accordingly
1882      - removed ADI dynamic solver from pkg/seaice
1883      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1884        they caused a segmentation fault under certain circumstances
1885      - removed unused field WATR
1886    o bug fix in exf-package:
1887      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1888         now reflect that.
1889    o small fixes in the cal-package:
1890      - set reference date to first of January for the 'model'-calendar
1891      - failing of cal_CheckDate in cal_FullDate now actually results in a
1892        warning
1893    o small modifications in exf-package to increase flexibility:
1894      - change climtempfreeze from a constant to a runtime parameter that
1895        is specified in data.exf_clim (default = -1.9)
1896      - introduce runtime parameter windstressmax (default = 2.0) that is
1897        specified in data.exf
1898    o fix in pkg/thsice:
1899      - update Evap (Tsf changes) to be consistent with Latent heat flux
1900      - maintain snow precipitation unchanged (even if Tsf >=0).
1901     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1902    
1903    checkpoint52m_post
1904    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1905      this does not change any of the results, because myIter=0 in swfrac always
1906      lead to jwtype=2 (the default anyway), but the call makes little sense
1907      as a default
1908    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1909    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1910      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1911    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1912    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1913    o extending useSingleCpuIO option to work with new exch2 I/O format
1914      - old-style, missing-tile I/O is still accessible by defining CPP
1915        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1916    o monitor package can write to NetCDF files and/or STDOUT
1917    o fix re-definition bug in MNC_GRID_INIT_ALL()
1918    o doc/api_reference added
1919      - a framework for building an API Reference Manual using all
1920        the "protex" comments embedded in the code
1921      - see pkg/generic_advdiff, pkg/mnc for examples
1922    o MNC:
1923      - make myThid the last argument for all subroutines
1924      - new default for the grid files: NO halos
1925      - add useMNC and other run-time flags
1926      - separate per-file-group handling of the unlimited dimension
1927      - early initialization of MNC w/ flags read at the eeboot stage
1928        and lookup tables set in initialize_fixed
1929      - write all MNC output to a freshly-created directory
1930    o thermodynamics sea-ice (thsice) is now tested with testreport.
1931    o test exp. advect_cs: use the standard cs32 grid ; update output.
1932    o Added functionality to grdchk:
1933      pick global i,j,k position (or nearest wet) where to perform check.
1934    
1935    checkpoint52l_post
1936    o new land formulation:
1937      a) use ground enthalpy as prognostic variable to ensure exact
1938         energy conservation.
1939      b) account for water temperature and for latent heat of freezing
1940         in all processes (rain, run-off, ground storage)
1941      c) compute surface and ground temperature implicitly.
1942    o aim_v23 modification for new land model:
1943      a) Treat separately land / ocean / sea-ice surface fluxes
1944         to allow implicit computation of land & sea-ice surface temp.
1945      b) add snow precipitation.
1946    checkpoint52l_pre
1947    
1948    o fix problem (when 1 tile is empty) in min/max monitor.
1949    o fix bug in timeAve (u,vZetatave in common block)
1950    o no restoring terms under ice for pkg/seaice
1951    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
1952    o bug fix for pkg/seaice pickups
1953    o change MNC call locations and add coordinate attributes
1954    o mask vorticity at the corner ; affects global_ocean.cs output
1955    o fix ini_curvilinear_grid ; test CS experiments with mpi
1956    o aim.5l_cs: modify sea-ice fraction input file ; update output
1957    o exf: Adding simple range check routine for exf fields after read
1958    
1959    checkpoint52k_post
1960    o removed top-level directory "diags"
1961      - we migrated these functions to pkg/timeave a long time ago
1962    o fixed bug introduced in pkg/monitor
1963    o accuracy ctrlprec = 32 insuffient for gradient checks using
1964      averaged fields (I/O via cost_averages)
1965      -> use ctrl.h in active_file*.F to control I/O precision.
1966    o paramter list of CALL ADTHE_MAIN_LOOP
1967    o added initial do_the_model_io to ecco
1968    o set all ...Freq to zero after cost_final
1969      taveFreq, dumpFreq, pChkptFreq
1970    o MAIN and ECCO differentiability restored
1971    
1972    checkpoint52j_post
1973    o fix nchklev in tamc.h for global_ocean...
1974    o Bringing flow and store directives up-to-date
1975    o Really weird thing!
1976      call do_the_model_io from the_main_loop with parameters
1977      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
1978      TAF places a faulty re-call of initialise_varia
1979      after cost_final call which should not be there!
1980    checkpoint52j_pre
1981    
1982    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
1983      error messages
1984    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
1985    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
1986      debug output
1987    o modfied mdsio_writefield.F to handle non-global files under exch2
1988    o update AIM Cubed-Sphere exp (aim.5l_cs):
1989      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
1990    o update AIM Equatorial Channel exp:
1991      use standard aim_v23 pkg and change the SST fields to be more realistic.
1992    o globalFile now works with exch2
1993    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
1994      mon_vort3.F to make exch2 friendly with >1 tile per cube face
1995    o limit timeave output for hi-res integrations
1996    
1997    checkpoint52i_post
1998    o removed CPP_EEOPTIONS.h from verification/*/code
1999    o updated the tiling for global_ocean_pressure
2000    checkpoint52i_pre
2001    
2002    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2003      the old pkg/aim).
2004    
2005    checkpoint52h_pre
2006    o shortened offending lines in exch2_send_rx?.template
2007    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2008    o genmake2: add build & execute test for NetCDF code
2009    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2010      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2011    o added useSingleCPUIO flag to monitor.F and mon_out.F
2012    o added temporary hack for sea-ice dynamics on the cube:
2013      metric terms are ignored and it is assumed that
2014      there is no sea-ice on cube faces 1, 2, 4, and 5.
2015    
2016    checkpoint52f_post
2017    o added exch2 cube routines to pkg/exch2
2018    o modified hs94.cs-32x32x5 to use it
2019    o added new grid files to hs94.cs-32x32x5
2020    checkpoint52f_pre
2021    
2022    checkpoint52e_post
2023    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2024      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2025    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2026      to work with implicit vertical advection and AB ;
2027    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2028    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2029     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2030    checkpoint52e_pre
2031    
2032    o fix bug in impldiff when Nr=1 or Nr=2.
2033    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2034    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2035    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2036      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2037    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2038    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2039    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2040    
2041    checkpoint52d_post
2042    o re-tiled many expts to allow comparison in multi-processor mode
2043      - updated output accordingly
2044      - changed hs94.128x64x5 to use intial T from file rather than use the
2045        random number generator
2046    o add infrastructure in model routines for fizhi and gridalt packages
2047    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2048    o changes to permit hi-res, cubed-sphere, configuration
2049      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2050      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2051      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2052        of surface winds for the cube
2053      (A verification experiment, based on global_ocean.cs32x15, but with
2054       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2055       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2056       complete with example surface forcing files and matlab scripts to look
2057       at the output and compare it with that of global_ocean.cs32x15.)
2058    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2059       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2060       to conform to the common rule.
2061    o check-in the first version of the coupler + interfaces for multi-components
2062       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2063       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2064       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2065       - ocean and atmos. share the same horizontal grid (no interpolation).
2066       - exchanges between component and coupler is done in forward_step
2067    o new verification experiment, cpl_aim+ocn:
2068       coupled ocean - AIM atmosphere on cs32 grid.
2069    
2070    checkpoint52d_pre
2071    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2072    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2073    
2074    checkpoint52c_post
2075    o Fixing OPTIONS files for use of exf:
2076      - ALLOW_ECCO not needed
2077      - ECCO_CPPOPTIONS.h should not be included from
2078        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2079        as has been the case in the past
2080      - All cal/exf related options are currently set in
2081        single header file. Should remain so until we
2082        agree on a consistent new policy.
2083    o Removed all CPP options for cal package.
2084      cal has no more CPP options.
2085    o modified STOREs in GAD_ADVECTION
2086    o corrected key comp. for passkey
2087    
2088    checkpoint52b_post
2089    o new version: "thsice" of thermodynamic sea-ice pkg:
2090     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2091     - modify fluxes but do not change theta directly;
2092     - light cleaning of bulk_force pkg (still needed with thsice).
2093     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2094       + output_thsice.txt to test thsice & bulk_force pkgs.
2095    o put back grid & coriolis monitor output.
2096    checkpoint52b_pre
2097    
2098    o call "do_the_model_io" at the beginning (=> dump initial state)
2099    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2100    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2101      (need info on NUMBER_OF_PTRACERS)
2102    o missing PTRACERS headers in some routines
2103    o default tamc.h in pkg/autodiff supposed to crash
2104      to ensure proper customization
2105    
2106    checkpoint52a_post
2107    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2108      - moved surfaceTendencyTice from pkg/seaice to main code
2109      - subroutine FREEZE_SURFACE now limits only surface temperature
2110        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2111        => new output.txt for global_ocean.cs32x15 & global_with_exf
2112      - keep the old version of FREEZE for backward compatibility;
2113        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2114      - corresponding modifs for TAF directives
2115    o added surface flux output variables to TIMEAVE_STATVARS
2116    o time-averaged output for pkg/ptracers
2117    o fix problem with ECCO-related divided adjoint
2118      snapshot file was missing some ad-variables,
2119      but no warning issued by TAF
2120    
2121    checkpoint52a_pre
2122    o some bug fixes for #undef REAL4_IS_SLOW
2123    
2124    checkpoint52 = ecco_c52_e35
2125    o after testing adjoints of checkpoint51u_post
2126    
2127    checkpoint51u_post
2128    o this is the post-merge tag of the ecco-branch
2129      (needs another clean checkout and re-testing)
2130    o various natl_box_adjoint configs and results
2131      but no input fields
2132    o obcs adjoint not yet merged!
2133    o adding ECCO global 1x1 and 2x2 degree configs
2134    o updated/extended some store directives for seaice
2135    o pkg/ecco now containes ecco-specific part of cost function
2136    o top level routines the_main_loop, forward_step
2137      supersede those in model/src/
2138      previous input data.cost now in data.ecco
2139      (new namelist ecco_cost_nml)
2140    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2141    
2142    checkpoint51t_post
2143    o this is the pre-merge tag of the ecco-branch
2144    
2145    checkpoint51s_post
2146    o cleanup: removed various obsolete #define-s
2147    o pkg/grdchk
2148      - renamed 'ph-grd 3' to 'grad-res'
2149      - merged from ecco-branch
2150        (remaining bug fixes for obcs gradient checks)
2151      - additional high-precision output for testreport
2152        (grep for 'precision_grdchk_result')
2153    
2154    checkpoint51r_post
2155    o cleaned up or removed CPP_OPTIONS.h files
2156    o updated results for some of the tests to reflect the new
2157      optfiles (-ieee: -O0 instead of -O3)
2158    
2159    checkpoint51q_post
2160    o cd_code:
2161      - moved cd_scheme.F -> cd_code_scheme.F
2162      - separate read_checkpoint from cd_code_ini_vars.F
2163      - separated cd_code part from write_checkpoint
2164      - updated AD_SOURCE, generated .flow
2165      - added CD_CODE_VARS.h to the_main_loop
2166      - Moving cd_code specific store dir.s to pkg/cd_code
2167    o ctrl package totally restructured
2168      - pack/unpack now optional and decoupled from
2169        xx_/adxx_ I/O
2170      - ctrl_pack/unpack cleaned
2171        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2172      - confined inclusion of AD_CONFIG.h to where necessary.
2173    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2174    
2175    checkpoint51p_post
2176    o create initial cd_code package
2177      - WARNING: the initialization of fields within packages
2178        is broken because INI_FIELDS (where READ_CHECKPOINT is
2179        called) is called *before* PACKAGES_INIT_VARIABLES.
2180        This seems to be backwards since
2181        1) its important to initially zero the entire field including
2182           the "halo" region
2183        2) zeroing needs to be done *before* reading pickup info
2184           and the pickup call might or might not happen in any
2185           particular run
2186      - this needs an overhaul for R2
2187    o cleanup verification/*/code/GMREDI_OPTIONS.h
2188    o cleanup testreport
2189    
2190    checkpoint51o_post
2191    o bringing AD-related verif's up to date with genmake2
2192      - carbon/
2193      - global_ocean.90x40x15/
2194      - hs.94.1x64x5/
2195      - (front_relax/ )
2196    o (more) consistent directory structure for AD-related verif.'s
2197    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2198    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2199    o bug fix in find_alpha.F for MDJWF:
2200      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2201        change rho -> rho-rhoConst
2202      - replace call find_rho to find_rhonum
2203    o initialisation of rFlx extended to full array (required by TAF)
2204      and shifted to thermodynamics
2205    o removed PTRACERS.h in ptracers routine
2206    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2207    o Correcting initialisations for fVerU, fVerV.
2208    o helping TAF to recognize dependency on kUp for
2209      fVerU, fVerV
2210    o Replacing delZ by delR in pkg/ctrl/
2211    checkpoint51o_pre
2212    
2213    o undid all of cp51 pending some cleanups and discussion
2214    o added the [#include "AD_CONFIG.h"] statement to all files that need
2215       it for adjoint/tl #defines
2216     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2217     o removed tools/genmake since it no longer works
2218    
2219    checkpoint51n_post
2220    o modifications to make FREEZE flux visible to pkg/kpp
2221      - moved surfaceTendencyTice from pkg/seaice to main code
2222      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2223      - subroutine FREEZE now limits only surface temperature
2224        (this means new output.txt for global_ocean.90x40x15,
2225         global_ocean.cs32x15, and global_with_exf)
2226    o added surface flux output variables to TIMEAVE_STATVARS
2227    
2228    checkpoint51n_pre
2229    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2230    o added [#include "AD_CONFIG.h"] to all files that use the following
2231      defines:
2232      - ALLOW_ADJOINT_RUN
2233      - ALLOW_TANGENTLINEAR_RUN
2234      - ALLOW_ECCO_OPTIMIZATION
2235    
2236    checkpoint51m_post
2237    o incorporating changes to get TAMC/TAF working in genmake2
2238      - added new TAMC/TAF targets to the Makefile
2239      - various cleanups related to package handling
2240      - these changes should have no impact on the forward model
2241    
2242    checkpoint51l_post
2243    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2244     - faster algorithm for cal_addtime.F
2245     - higher precision arithmetic, where needed
2246     - pkg/exf *startdate variables changed from calendar date to
2247       model integration time
2248    
2249    checkpoint51l_pre
2250    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2251    o enable to apply restoring on S & T only in a latitude band.
2252    o update output (external_forcing_surf modif. change truncation errors)
2253       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2254    
2255    checkpoint51k_post
2256    o change default to: useNHMTerms=.FALSE.
2257     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2258       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2259     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2260        exp1, ideal_2D_oce
2261     - change data file of oceanic exp (leave the results unchanged for now)
2262       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2263    o set gravitySign automatically according to the vertical coordinate used
2264      (and change sign: back to "logical" value: +1 when R increases downward)
2265    o added an include barrier to the default CPP_OPTIONS.h and
2266      removed the #include "PACKAGES_CONFIG.h" from it
2267    o fix a bug in mom_fluxform (from chk51j_post)
2268    
2269    checkpoint51j_post
2270    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2271    o adjusted some flow directives (dynamics, thermodynamics)
2272    o added cubed-sphere case to test cost function
2273    o heckpoint_lev?_directives.h now include
2274      pkg-specific directives, whenever those are enabled.
2275    o Moving pkg-specific flow directives to corresponding pkg
2276      Moving pkg-specific differentiation list to corresponding pkg
2277      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2278      ---> conventions are
2279           - pkg_ad.flow
2280           - pkg_ad_diff.list
2281           - pkg_ad_check_lev?_dir.h
2282    
2283    checkpoint51i_post
2284    o merge of the branch-genmake2
2285      - knowingly breaks the older genmake
2286      - automatic generation of all ALLOW_${PKG_NAME} defines
2287      - new testreport supersedes older testscript
2288    o large number of package inclusion and header cleanups
2289    checkpoint51i_pre
2290    
2291    o new output for adjoin of global ocean vector invariant
2292    o fix for checkpoint of thermodynamic seaice and bulk_force
2293    o Steph gchem various cleanups
2294    
2295    checkpoint 51h_pre
2296    o fixed some single quotes
2297    o modify gchem pkg to be more versatile
2298    o modifications to clean up dic pkg
2299    o add pkg/cfc
2300    
2301    checkpoint51g_post
2302    o provide links for ARPACK and ADM*TLM
2303    o start removing verification/vero/
2304    o update AD-related stuff
2305      (in particular some IF-statements in model/src/ routines)
2306    o adding to verification/global_ocean.90x40x15/ adjoint of
2307      vector invariant setup
2308    
2309    checkpoint51f_post
2310    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2311    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2312      of tracer Green's fucntions for ocean inversion project.
2313    
2314    checkpoint51f_pre
2315    o Added on-the-fly spatial interpolation capability
2316        "USE_EXF_INTERPOLATION" to pkg/exf.
2317      - This is a temporary Cartesian-grid hack until
2318        the super-duper ESMF coupler becomes available.
2319      - See verification/global_with_exf/README for usage example.
2320      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2321        flags and modified pkg/seaice accordingly.
2322    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2323        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2324        non-local transport term.
2325    
2326    checkpoint51e_post
2327    o pkg/mom_vecinv:
2328      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2329      - add time-ave diagnostic of vorticity advection.
2330    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2331    o atmospheric geopotential: - include water vapor effect;
2332                                - use p^kappa in p* scaling.
2333    o land pkg: read initial state from files.
2334    o AIM : add stratospheric drag in the upper level
2335    
2336    checkpoint51d_post
2337    o change function ILNBLNK (=> last non-blank char.) to return zero
2338      (instead of the string length) when the string. char is empty
2339    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2340    o modif's to restore TAMC compatibility
2341      - avoid "_d" constructs in PARAMETER declarations
2342      - avoid interrupting lines by comment lines
2343    o Use cluster local disks for purely local I/O
2344      vs. globally visible disks needed for ctrl stuff
2345      (merged from ecco-branch)
2346      - new active_file_loc... and mdsio_..._loc routines
2347      - affected packages: autodiff, ctrl, grdchk, mdsio
2348    
2349    checkpoint51c_post
2350    o introducing integer flag debugLevel
2351      - debLevZero: suppress all output
2352      - debLevA: standard
2353      - debLevB: equivalent to current debugMode=.TRUE.
2354    o introducing pathname variable mdsioLocalDir for mdsio
2355      that can be specified at runtime
2356      (relevant for cluster I/O to local disk)
2357    `
2358    >>>checkpoint51b_post
2359    adjoint of ptracers
2360    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2361    o extended state in checkpoint_lev?, etc.
2362    o alternative ctrl/cost with tr1 or ptracer
2363    o new comlev1_bibj_ptracers
2364    o new ptracers.flow
2365    o made ptracers_forcing same as external_forcing_s
2366    o added verification for adjoint with ptracers
2367      - adm. grdchk fail so far
2368      - tlm. grdchk OK
2369      - checked tapelev/comlev recomputations: OK
2370    <<<checkpoint51b_pre
2371    
2372    checkpoint51a_post
2373    o added code for biogeochemistry package
2374      - new pkgs: dic, gchem
2375      - new subroutine in ptracers
2376    o modify code for biogeo packages
2377      - in model/src and pkg/ptracers
2378    
2379    checkpoint51
2380    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2381      - autodiff, ctrl, exf, grdchk, seaice
2382      kept separate packages
2383      - cost, ecco, obcs
2384    o updating verification/internal_wave, verification/lab_sea
2385      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2386    
2387    checkpoint50i_post
2388    o Preparing next differentiable checkpoint and sync
2389      of MAIN vs. ecco-branch
2390      - 1st step: this one is differentiable
2391      - 2nd step: next(! not this) checkpoint will have updated packages
2392                  from ecco-branch)
2393    
2394    checkpoint50h_post
2395    o new package "land": provide surface BC for AIM.
2396    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2397    o AIM: use true log-P extrapolation for near surface temp (= as in
2398        F.Molteni paper) ; update aim.5l_cs output.
2399    o New variable in PARM03 for more flexible pickups
2400    o somewhat cleaned package initialisation sequence for
2401      ctrl/ cost/ ecco/ in packages_... routines
2402    
2403    checkpoint50g_post
2404    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2405      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2406      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2407        made the default because of faster convergence than ADI
2408    
2409    checkpoint50f_post
2410    o exf totally restructured
2411      - replaced all exf_set_ routines by one generic exf_set_gen.F
2412        and made sure it's still differentiable
2413      - split exf_getffields.F into new exf_bulkformulae.F
2414      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2415      - updated adjoint/makefile and relevant verif. accordingly
2416    
2417    checkpoint50f_pre
2418     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2419          + change Evap over land. (update aim.5l_cs output)
2420     o added missing .cvsignores and made uniform across expts
2421     o changed configuration of tidal_basin_2d expt
2422     o added pkg/debug functions for tracing code in fatal crashes
2423     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2424     o new fn in pkg/monitor to stop model if solution grows too big
2425     o removed lots of single quotes from comments
2426    
2427    checkpoint50e_post
2428    o make KPP work with PTRACERS
2429     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2430       nearly a copy of kpp_transport_s
2431     - there is no analogue to SurfaceTendencyS, so I have to use
2432       gPtr(of the surface layer) instead
2433    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2434    checkpoint50e_pre
2435    
2436    checkpoint50d_post
2437    o change kpp output from multiple-record state files to single-record state
2438      files analogous to write_state.F
2439    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2440      analogous to the cg2d-related output.
2441    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2442      so that writing to internal file fn (with length 512) fails.
2443    checkpoint50d_pre
2444    
2445    checkpoint50c_post
2446    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2447    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2448    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2449    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2450    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2451    
2452    checkpoint50c_pre
2453    Merging from release1_p13:
2454    o bug fix for pkg/seaice dynamic solver
2455    o Added SEAICE_initialHEFF to pkg/seaice
2456    
2457    checkpoint50b_post
2458    o store u*,v* in gU,V instead of in guNm1,gvNm1
2459    o in order to put the momForcing out of the Adams-Bashforth:
2460      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2461      to timestep.F
2462    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2463    o re-generate output for highly sensitive test-exp:
2464       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2465    
2466    checkpoint50b_pre
2467    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2468    o corrected CPP option mismatch in exf_Bulk... functions for case
2469      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2470    
2471    checkpoint50a_post
2472    o Bug fix for merging between c50 and KPP.
2473      ikey was passed from thermodynamics to kpp_calc via
2474      common block rather than being recomputed in kpp_calc,
2475      in contradiction with new key itdkey.
2476      New key ikppkey created, and tamc.h headers updated.
2477    
2478    checkpoint50
2479    - 2nd step of merge with ecco-branch:
2480      merge changes in ecco-branch back into main trunk
2481    - bug fix in find_alpha
2482    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2483    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2484    - merged some sliced AD support routines
2485    
2486    checkpoint49
2487    merged from ecco-branch:
2488    o exf:
2489      - Enable initialisation of forcing fields to constant
2490        (runtime) values.
2491      - in exf_getffields.F
2492        Reduce i-/j-loop to interior domain, discarding overlaps.
2493        That also fixes wrong TAF-key computations for key_1, key_2
2494        with bulf formulae.
2495      - exf_init.F modify #ifdef for exf_init_evap
2496      - exf_getffieldrec.F, ctrl_getrec.F
2497        The following INT-usages are not safe:
2498          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2499          fldcount = int(fldsecs/fldperiod) + 1
2500        and were modified.
2501    o autodiff: checkpoint_lev...
2502      - updated storing for bulk formulae (some arrays were missing)
2503      - added state for seaice package
2504      - synchronized with main branch
2505    o DIVA:
2506      Modif.s in
2507      - the_main_loop.F
2508      - the_model_main.F
2509      and added cost_final_restore.F cost_final_store.F
2510      o With these changes, it is possible to fully separate
2511        the first forward run to compute the cost function (mdthe_main_loop)
2512        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2513        into separate model executions.
2514        This enables better tuning of DIVA to given queue sizes.
2515      o Loss of cost function value in consecutive DIVA runs is
2516        fixed by storing to 'costfinal' file.
2517      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2518        beginning/end of adjoint integration is accounted for.
2519      The current changes apply to TAF-1.4.26.
2520      TAF has one remaining bug, requiring one manual change
2521      (see MITgcm manual).
2522    o cal: synchronized between MAIN and ecco-branch
2523    
2524    checkpoint48i_post
2525    o Changes to restore differentiability of code w.r.t. previous tag
2526      (mostly adding new routines to make list and replacing
2527      pressure by totPhiHyd).
2528    o Updated and merged grdchk package
2529      - has both ADM and TLM checks
2530      - works for single- and multi-proc.
2531      - output cleaned
2532      - worked successfully for parallel DIVA
2533    o genmake:
2534      - Adding -platform=SP4
2535      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2536    o Modif. for DIVA:
2537      ctrl_unpack should not be called in intermediate DIVA interval.
2538      (similar thing would apply for active files such as
2539      tbar, sbar, psbar, which should not be reinitialised;
2540      only relevant for ecco-branch)
2541    
2542    checkpoint48h_post
2543    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2544    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2545    o Added SEAICE_initialHEFF to pkg/seaice
2546    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2547    
2548    checkpoint48g_post
2549    --- EOS:
2550    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2551      store total Potential in totPhyHyd for diagnostics & EOS.
2552    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2553    --- Pressure/geopotential gradient:
2554    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2555    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2556      ( changes results of global_ocean_pressure )
2557    o NLFS + z-coord.: add eta*Rho' contribution.
2558    o accurate phiHyd when using interface-W at the middle between 2 centers
2559     ( changes results of ideal_2D_oce )
2560    o includes r* 2nd term in potential gradient.
2561    
2562    checkpoint48f_post
2563    Merging from release1_p12:
2564    o Modifications for using pkg/exf with pkg/seaice
2565      - improved description of the various forcing configurations
2566      - added basic radiation bulk formulae to pkg/exf
2567      - units/sign fix for evap computation in exf_getffields.F
2568      - updated verification/global_with_exf/results/output.txt
2569    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2570      (SBO) core products, including oceanic mass, center-of-mass,
2571      angular, and bottom pressure (see pkg/sbo/README.sbo).
2572    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2573      to avoid negative values in shallow regions.
2574      - updated verification/natl_box/results/output.txt
2575      - updated verification/lab_sea/results/output.txt
2576    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2577    o Added useSingleCpuIO option (see PARAMS.h).
2578    o Updated useSingleCpuIO option in mdsio_writefield.F to
2579      work with multi-field files, e.g., for single-file pickup.
2580    o pkg/seaice:
2581      - bug fix in growth.F: QNET for no shortwave case
2582      - added HeffFile for specifying initial sea-ice thickness
2583      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2584    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2585      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2586    o pkg/seaice:
2587      - adjoint-friendly modifications
2588      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2589    
2590    checkpoint48e_post
2591    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2592    o dynamics: change definition of computational domain & adapt mom_fluxform
2593      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2594    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2595        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2596        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2597        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2598        inverted_barometer solid-body.cs-32x32x1
2599      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2600    
2601    checkpoint48d_post
2602    o in preparation for r*:
2603     a) use pre-computed gradient of hydrostatic potential:
2604        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2605     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2606        => affects results of glob_oce_pressure (different truncation error)  
2607      update output.txt of ideal_2D_oce & global_ocean_pressure
2608    
2609    checkpoint48d_pre
2610    o in preparation for r*:
2611      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2612      pass the 2 comp. of the grad. as arguments to momentum S/R.
2613      but for the moment, only used if it does not change the results.
2614    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2615    
2616    checkpoint48c_post
2617    Modifications in treatment of initial flux forcing controls
2618    to avoid extra storing of flux fields.
2619    
2620    checkpoint48c_pre
2621    o Added tidal_basin_2d experiment (currently 1D!)
2622    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2623    
2624    checkpoint48b_post
2625    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2626     (modification to pressure gradient not yet implemented)
2627    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2628      (for U & V) that are used for vertical advection of momentum.
2629    
2630    checkpoint48a_post
2631    o In preparation for r*, use temp. array to compute vertical transport
2632       in flux-form momentum pkg. => change results of few test-exp.
2633      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2634                        lab_sea, natl_box & plume_on_slope
2635    
2636    checkpoint48
2637    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2638    
2639    checkpoint47j_post
2640    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2641    o moved adexch from forward_step to addummy_in_stepping
2642    o added exch in ctrl_map_...
2643    o aveFreq.=0. at end of cost_final to avoid overwrite in
2644      reverse checkpointing loop
2645    o Yet more changes in gmredi:
2646      * adgmredi_calc_tensor
2647        avoiding all recomputation of gmredi_slope_limit
2648      * adgmredi_x/y/rtransport
2649        added flag for excessive storing to avoid recomp. of
2650        u/v/rtans, dTdx/y/z
2651        -> this is not really necessary and very memory-consuming
2652      * adgmredi_slope_psi:
2653        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2654      * gmredi_slope_limit
2655        re-activated full calculation of taperfct for case 'ac02'
2656    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2657    
2658    checkpoint47i_post
2659    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2660    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2661      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2662    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2663    o gmredi: fix few bugs.
2664    
2665    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2666    This will be a good checkpoint to plug into the ecco-branch.
2667    o few modif.'s to get latest version adjointed
2668      (mainly kick out code in ini_linear_phisurf)
2669    o modif's to run adjoint with exactConserv
2670    o case GM_BOLUS_ADVEC should be cleaned
2671      S/R gmredi_slope_psi should be cleaned
2672    o verification/carbon now has exactConserv=.TRUE.
2673    
2674    checkpoint47g_post
2675    o time-average AIM output: becomes independent from statvars time-average
2676      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2677    o After TAF bug fix:
2678      Tested adjoint of gmredi package.
2679      Tests were done with checkpoint47 rather than with latest
2680      checkpoint47f_post since the latter is broken for the adjoint
2681      verification/carbon/ contains both ADM and TLM gradient checks.
2682    Here they are, before they get changed/lost/stolen.
2683    Mostly modif.'s to fix numerical sensitivities.
2684    Gradient checks OK for
2685    - GM_taper_scheme:
2686      * clipping
2687      * ac02
2688      * linear
2689      * glw91
2690      * dm95
2691      * ldd97
2692    - GMREDI_OPTIONS:
2693      * GM_VISBECK_VARIABLE_K
2694      * GM_NON_UNITY_DIAGONAL
2695      * GM_EXTRA_DIAGONAL
2696      * GM_BOLUS_ADVEC
2697    in conjunction with data.gmredi parameters to be checked in
2698    in a few minutes under verification/carbon/code/
2699    
2700    checkpoint47f_post
2701    Merging from release1_p10:
2702    o modifications for using pkg/exf with pkg/seaice
2703      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2704        and SEAICE_EXTERNAL_FLUXES
2705      - pkg/exf CPP options EXF_READ_EVAP and
2706        EXF_NO_BULK_COMPUTATIONS
2707      - usage examples are Experiments 8 and 9 in
2708        verification/lab_sea/README
2709      - verification/lab_sea default experiment now uses
2710        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2711    
2712    checkpoint47e_post
2713    o created a tag prior to creating a branch
2714    
2715    checkpoint47d_post
2716    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2717      at the bottom boundary had an erroneous half slip boundary condition
2718    o added bottom drag and no slip boundary condition capabilities to
2719      oceanic pressure coordinates code
2720    o added new verification experiment global_ocean_pressure, this experiment is
2721      also described in the tutorial section of the manual
2722    checkpoint47d_pre
2723    
2724    checkpoint47c_post
2725    o Added a verification experiment for a global cubed-sphere ocean run
2726      -  verification/global_ocean.cubed32x32x30
2727      -  uses pkg/therm_seaice and pkg/bulk_forcing
2728    
2729    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2730    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2731      when using P-coordinate; only implemented for atmospheric config.
2732    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2733      NOTES: requires option NONLIN_FRSURF to be "#define".
2734    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2735    
2736    checkpoint47b_post
2737    Merging from release1_p9:
2738    o pkg/seaice
2739      - removed GOTO's and added taf directives
2740      - double precision constants to reduce the g77 (Linux)
2741        to F77 (SGI) differences reported in release1_p8
2742    o tools/genmake
2743      - added SGI options
2744    o verification/testscript
2745      - updated to that of checkpoint47a_post
2746    o verification/global_ocean.90x40x15/input/eedata
2747      - modified for SGI f77 compatibility
2748    o verification/lab_sea
2749      - added description of sea-ice model
2750      - added missing matlab routines
2751      - added test of thermodynamics parallelization
2752    
2753    checkpoint47a_post
2754    o new pkg: aim_v23
2755     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2756       for now, keep the same surface forcing as before.
2757     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2758     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2759     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2760    o add diagnostic of surface correction term in monitor output
2761    
2762    o bulk_force and therm_seaice
2763    - Two packages:  bulk_force (Bulk forcing)
2764      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2765    - Earlier integration from Stephaine Dutkiewicz
2766      and Patrick Heimbach.
2767    - Two ifdef statements for compile time,
2768       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2769    
2770    checkpoint47
2771    differentiable version of checkpoint46n_post
2772    o bug fix in quasihydrostaticterms
2773    o * "clean" adjoint code (in terms of extensive recomputations)
2774        can now be obtained for all GMREDI options (i.e. for
2775        - GM_VISBECK_VARIABLE_K
2776        - GM_NON_UNITY_DIAGONAL
2777        - GM_EXTRA_DIAGONAL
2778        - GM_BOLUS_ADVEC )
2779      * However, wrong gradient check problem remains unsolved.
2780      * New CPP options have been introduced for different
2781        tapering schemes
2782    o external_fields_load now part of differentiation list
2783    o pressure needs multiple storing;
2784      would be nice to have store_pressure at beginning or
2785      end of forward_step, e.g. by having phiHyd global (5-dim.)
2786      (NB: pressure is needed for certain cases in find_rho,
2787      which is also invoked through convective_adjustment).
2788    o recomputations in find_rho for cases
2789     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2790    o #define ATMOSPHERIC_LOADING should be differentiable
2791    o ini_forcing shifted to begining of initialise_varia
2792    o Incorporating QNVS line search routines into MITgcm
2793      (this is separate code, and therefore not under pkg)
2794      lsopt/, optim/
2795    o Updated verification/carbon/
2796      - #define GM_VISBECK_VARIABLE_K
2797      - GM_taper_scheme    = 'ldd97'    
2798    
2799    checkpoint46n_post
2800    Merging from release1_p8:
2801    o verification/natl_box:
2802      updating new external_fields_load routine
2803    o New package: pkg/seaice
2804      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2805      The sea-ice code is based on Hibler (1979-1980).
2806      Two sea-ice dynamic solvers, ADI and LSR, are included.
2807      In addition to computing prognostic sea-ice variables and diagnosing
2808      the forcing/external data fields that drive the ocean model,
2809      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2810      The implied surface heat flux is then stored in variable
2811      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2812      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2813      non-local transport term.  Because this call precedes model
2814      thermodynamics, temperature under sea-ice may not be "exactly" at
2815      the freezing point by the time theta is dumped or time-averaged.
2816      N.B.: fairly large differences in accuracy occur across
2817            different platforms/compilers; comparison between
2818            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2819            generated output gives:
2820       T           S           U           V
2821      C D M    c        m  s        m  s        m  s        m  s
2822      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2823      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2824      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2825    
2826      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2827    o GAD:
2828      - generated new common blocks to account for call of
2829        same gad routines with differing traceridentities
2830        (needed to modify tracerIdentity indices in GAD.h)
2831      - generated separate common blocks for case useCubedSphereExchange
2832        (Department of Futurology)
2833      - parameter lists to gmredi_?transport: added tracerIdentity
2834      - added new key indices to tamc.h
2835    o external_fields_load:
2836      - added this routine to TAF list
2837      - needed to make some common blocks global and additional storing
2838        along the same lines as exf package (checkpoint_lev?_directives.h)
2839    o exf:
2840      updated external forcing package
2841      - bug fixes carried over from ecco-branch
2842        (missing OBCS_OPTIONS.h in two routines)
2843      - enable easy to use "no forcing".
2844      - added exf I/O for atmospheric loading
2845      - added exf I/O for runoff data
2846      - transfered scaling between exf <-> MITgcm to exf namelist
2847    o Adding new verification experiment global_with_exf.
2848      This verification experiment is almost identical to the
2849      global_ocean.90x40x15 experiment, except that it uses
2850      the exf (and cal) package instead of the
2851      external_fields_load routine (cf README file).
2852    
2853    checkpoint46m_post
2854    o modified testscript to return -- when there are no lines of "%MON" output
2855    o added new flag "quasiHydrostatic" for QH mode
2856      and new routine quasihydrostaticterms()
2857    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2858      New routine: mom_u_coriolis_nh()
2859    o fixed sign of non-hydrostatic metric terms in u and v equations.
2860      Depend on correct sign of gravitySign.
2861    o added work.pc* to .cvsignore in aim directories using ifc
2862    o introduced flag for controllin non-hydrostatic metric terms
2863    o removed gravitySign from PARM04
2864    o switched to g77/ifc from pgf77 in aim experiments
2865    
2866    checkpoint46l_post
2867    o made convective adjustment work with pressure coordinates:
2868     - changed the direction of k-loop in convective_adjustment.F for the
2869       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2870     - adjusted the reference pressure k-index in convective_adjustment.F
2871     - adjusted the convection condition in convect.F (in analogy to
2872       calc_ivdc.F)
2873     - convective_adjustment no longer computes anything on the halos
2874     - removed the warnings about negative salinity from find_rho.F and
2875       find_alpha.F; instead the new routine look_for_neg_salinity, called
2876       at the beginning of find_rho, find_alpha, and find_beta, does a
2877       check of the entire slice, if CPP-option
2878       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2879    checkpoint46l_pre
2880    
2881    checkpoint46k_post
2882    o fixed the verification/global_ocean.90x40x15 experiment:
2883     - new bathymetry (the world according to A., JMC, and M.)
2884     - new initial fields and forcing fields (*.bin files)
2885     - new POLY3.COEFFS (for the next release one should switch to a full
2886       equation of state: JMD95P or MDJWF)
2887     - fixed several errors and redundancies in the data file
2888     - experiment uses looped cells
2889     - added matlab directory with diagnostic scripts for plotting of output
2890    
2891    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2892     - read AIM physics parameters from a file (data.aimphys)
2893     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2894    
2895    checkpoint46j_post
2896    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2897    o move wVel computation at the end of the time step, in S/R integr_continuity
2898    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2899    o update timeave pkg for wVel diagnostic.
2900    checkpoint46j_pre
2901    
2902    checkpoint46i_post
2903    o Clean up AIM package (and keep the results unchanged):
2904      include CPP_OPTION and use IMPLICT NONE in all routines ;
2905      declare all the variables _RL ; use _d 0 for all numerical constants.
2906      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2907    
2908    checkpoint46h_post
2909    o cleaned up the use of rhoNil and rhoConst.
2910      - rhoNil should only appear in the LINEAR equation of state, everywhere
2911        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2912        and the dynamical equations are all divided by rhoConst
2913    o introduced new parameter rhoConstFresh, a reference density of fresh
2914      water, to remove the fresh water flux's dependence on rhoNil. The default
2915      value is 999.8 kg/m^3
2916    o cleanup up external_forcing.F and external_forcing_surf.F
2917      - can now be used by both OCEANIC and OCEANICP
2918    checkpoint46h_pre
2919    
2920     Added code to convert surface volume flux (fresh water) into
2921     a mass flux when using P coordinates in the ocean (OCEANICP).
2922     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2923    
2924    checkpoint46g_post
2925    o Include a new diagnostic variable phiHydLow for the ocean model
2926      - in z-coordinates, it is the bottom pressure anomaly
2927      - in p-coordinates, it is the sea surface elevation
2928      - in both cases, these variable have global drift, reflecting the mass
2929        drift in z-coordinates and the volume drift in p-coordinates
2930      - included time averaging for phiHydLow, be aware of the drift!
2931    o depth-dependent computation of Bo_surf for pressure coordinates
2932      in the ocean (buoyancyRelation='OCEANICP')
2933      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2934        Theta, Salinity, and Pressure in the parameter list. This routine is
2935        presently contained in find_rho.F. This routine does not give the
2936        correct density for 'POLY3', which would be a z-dependent reference
2937        density.
2938    o cleaned up find_rho
2939      - removed obsolete 'eqn' from the parameter list.
2940    o added two new verification experiments: gop and goz
2941      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2942    checkpoint46g_pre
2943    
2944    checkpoint46f_post
2945    o Enable tangent linear (forward mode) gradient checks:
2946      - extended active file handling to g_... files
2947      - added TANGENT_SIMULATION to theSimulationMode
2948      - extended grdchk package accordingly
2949    o added tangent linear setup in verification/carbon/code_ftl
2950    o added adjoint setup in verification/front_relax/code_ad
2951    
2952    checkpoint46e_post
2953    o Added new equation of state -> MDJWF
2954      - EOS of McDougall et al., 2002, JAOT, submitted
2955      - caveat: the equation of state is only valid for a smaller (more
2956        realistic?) range of values than JMD95P/Z and UNESCO
2957      - added masks to the calculation of pressure in store_pressure
2958      - added more check values for density in check_eos (ini_eos.F), some of
2959        the old check values are out of the range of the MDJWF-eos, so don't
2960        expect perfect matches for those
2961    checkpoint46e_pre
2962    
2963    checkpoint46d_post
2964    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
2965      'OCEANICP', also initialised field pressure correctly in ini_eos in the
2966      case of pressure coordinates. eosType='JMD95Z' in
2967      combination with buoyancyRelation='OCEANICP' now causes an error.
2968    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2969      in find_alpha/beta.
2970    checkpoint46d_pre
2971    
2972    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
2973      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
2974    
2975    checkpoint46c_post
2976    o Changes necessary for ocean in p-coordinates
2977     -  Added new buoyancy relation = 'OCEANICP'
2978     -  Added new parameters = gravitySign (this used to be contained inside
2979        the factor dRdZ which I added when we first switched to R coordinates).
2980     X GM/Redi is not compatible (yet)
2981     X bottom drag and no-slip need to be debugged.
2982    checkpoint46c_pre
2983    
2984    checkpoint46b_post
2985    o Added new equation of state -> JMD95Z and JMD95P
2986      - EOS of Jackett and McDougall, 1995, JAOT
2987      - moved all EOS parameters into EOS.h
2988      - new routines ini_eos.F, store_pressure.F
2989    o Added UNESCO EOS, but not recommended because it requires
2990      in-situ temperature (see JMD95)
2991    o Modified formatting for knudsen2.f in utils/knudsen2 and added
2992      unesco.f to be used with POLY3
2993    checkpoint46b_pre
2994    
2995    checkpoint46a_post
2996    o Added (atmospheric) pressure loading
2997      - new field in FFIELDS.h, etc...
2998      - new cpp flag ATMOSPHERIC_LOADING
2999    o Changed hFacC to _hFacC in calc_phi_hyd.F
3000    o Added SHORTWAVE_HEATING to some files for consistency
3001    checkpoint46a_pre
3002    
3003    checkpoint46
3004    further merges from release1_p5
3005    o new ctrl package
3006      - adopted from ECCO environment to enable optimization
3007      - added Eliassen Palm fluxes to controls
3008    o added Eliassen Palm flux controls to gradient check package
3009    o cost package
3010      - Compatible with new ctrl package
3011      - added Eliassen Palm cost hooks
3012      - modif's of existing cost functions
3013    o Adjoint-related bug fixes in kpp:
3014      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3015      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3016    o autodiff package
3017      - flow directives:
3018        + new for S/R do_the_model_io
3019        + enhanced for S/R checkpoint
3020        + new gmredi.flow
3021      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3022        disable adcommon.h/g_common.h by default.
3023      - fixed problem for adjoint of global_max
3024    o modified verification/carbon/
3025    o New setup for adjoint of global_ocean
3026    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3027    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3028    o incorporated hooks for sponge layer code (external_forcing.F)
3029    
3030    checkpoint45d_post
3031    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3032    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3033      (affects plume_on_slope "cg2d" output)
3034    o add new parameter deltaTfreesurf for free-surface time stepping
3035    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3036    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3037    o change phiMin in exp1 (to agree with documentation)
3038    o add new flags:
3039     - T,S forcing inside/outside Adams-Bashforth
3040     - turn off temp,salt advection and/or forcing
3041     - for each tracer, define internal flag for multiDimAdvection & A-B
3042    o monitor: change definition of KE to check conservation of Energy
3043    
3044    checkpoint45c_post
3045    o Removed f90 comments ("!")
3046    o Modified initialisations to enable exf package for MITgcm
3047      (without invoking ECCO_PACKAGE).
3048    o modifications to gradient check package (Martin Losch)
3049      - enable centered differences
3050      - modified format of standard output
3051    
3052    checkpoint45b_post
3053    o cleaned exchange calls in cg2d
3054    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
3055    o included CPP option SINGLE_LAYER_MODE in thermodynamics
3056      to configure barotropic setup (Martin Losch)
3057    o moved some initialisations within bi,bj loop in dynamics
3058      (TAF flow dependency)
3059    o in initialise_varia, moved call packages_init_variables
3060      before convective_adjustment_init
3061      (corresponding adjustment of TAF tape initialisation).
3062    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
3063    
3064    checkpoint45a_post
3065    o compute Rho over the whole domain (extend iMin,jMin indices)
3066    o specific exchange for X-slice domain (case Ny=1)
3067    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
3068    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
3069    
3070    checkpoint44h_post = checkpoint45
3071    o Fix to restore differentiability:
3072      place at which packages_init_variables is called in
3073      initialise_varia is crucial for reverse control flow.
3074    o modifications in GMRedi to enable stable adjoint
3075      (corresponding modif's in thermodynamics, dynamics)
3076    o added missing hook for sponge layer code in external_forcing
3077    o modified test cost functions
3078    o storing in gad_advection (plus removal of write(0,*)!
3079    o missing headers TR1.h added in convective_adjustment routines
3080    o errorMessageUnit set non-equal zero in eeboot
3081      (conflict on some platforms, e.g. IBM SP3)
3082    o modified carbon verif.
3083    
3084    checkpoint44h_pre
3085    o vertical grid option: allow to put the Interface at the middle between
3086      2 cell-centers ; replace delZ in pkg/kpp by drF.
3087    o GM Advective form: Tracers are advected using the residual transport (=
3088      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
3089    
3090    checkpoint44g_post
3091    o fix surface correction term in multiDimAdvection (affects plume_on_slope
3092      results) ; ifdef missing in thermodynamics.F
3093    
3094    checkpoint44f_pre,checkpoint44f_post
3095    o added PTRACERS package
3096      This allows an arbitrary number of passive tracers to be integrated
3097      forward simultaneously with the dynamicaly model.
3098      + Implemented so far:
3099        - basic forward algorithm (time-stepping, advection, diffusion, convection)
3100        - I/O and checkpointing
3101        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
3102      + Not implemented so far:
3103        - KPP
3104        - OBCS
3105      + No specific example supplied (yet) but global_ocean.90x40x15 has the
3106        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
3107        line in data.pkg.
3108      + This package is disabled by default since it increases storage.
3109    
3110    
3111    o testscript: added -cleanup option
3112    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
3113                 b) enable to filter 2D fields.
3114    
3115    checkpoint44e_pre,post
3116    o re-wrote convective adjustment to use pre-calculated weights
3117      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
3118      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
3119      Original calls to convect() still in place.
3120    
3121    chkpt44d_pre,post
3122    o added missing EXCLUDE_MONITOR flags
3123    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
3124      (incompatible typ in MIN/MAX expressions caused problems
3125      on IBM SP3)
3126    o in genmake added variable MAKEDEPEND
3127      plus resetting for case SunOS
3128    o added timer_stats.c routine for IBM SP3
3129    o removed variables in dynamics
3130    !!! I forgot to create tag chkpt44d_pre !!!
3131    !!! But chkpt44d_pre = chkpt44c_post    !!!
3132    
3133    o real fresh water flux implemented with non-linear free-surface.
3134    
3135    chkpt44c_pre,post
3136    o few fix (mask in shap_s2, EmPmR in external_field_load,
3137      USE_NATURAL_BCS in solve_for_P);
3138    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
3139    
3140    checkpoint44b_pre/_post
3141    o merge of relevant stuff from the ecco-branch:
3142      - genmake: removed $S64 overwrite for case SunOS
3143      - pkg/exf: update and corrections for field swapping and obcs
3144      - pkg/ecco: parameter lists for the_model_main, the_main_loop
3145                  harmonized between ECCO and MITgcm
3146      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
3147                      updated checkpointing_lev... lists for obcs
3148      - model/src: minor changes in forward_step, plot_field
3149                   added directive for divided adjoint in the_main_loop
3150      - pkg/mdsio: added mdsio_gl_slice
3151    
3152    o check parameters & config (chkpt44a_pre,post)
3153    o OBC and NonLin_FrSurf.
3154    
3155    checkpoint44
3156    o fix bug in mom_vi_del2uv
3157    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
3158    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
3159    o update AIM experiments (NCEP input files)
3160    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
3161    o added some stuff for AD
3162    
3163    checkpoint43
3164    o added two new advection tests
3165    o added global 4x4 degree ocean test
3166    o added test of H&S94 with free surface on cube
3167    o some final mods for gradient check, adjoint,...
3168    
3169    checkpoint42
3170      Fixed AD-related problems:
3171    o Store directives up-to-date with re-arranged Adams-Bashforth
3172      (mainly thermodynamics.F)
3173    o New store directives for multi-dim. advection schemes
3174      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
3175      * new common block and key passkey
3176      (mainly gad_advection.F)
3177    o Modified store directives for split of dynamics/thermodynamics
3178      for the case ALLOW_KPP
3179    o Cleaned argument list for timestep_tracer.F
3180    
3181    checkpoint41
3182    o re-formatted/added comments in prologues of key subroutines
3183      to work with protex
3184    
3185    checkpoint40
3186    o moved calc_gs, calc_gt and calc_tr1 back to model/src
3187    o added FLT (floats) package from Arne along with demo. experiment
3188    o re-arranged Adams-Bashforth scheme for tracers to allow easier
3189      implementation of forward-in-time forcing terms
3190    o more mods for non-linear free-surface including new variable
3191    o modified multi-dim method to work on cube
3192    o bug fix in KPP (from DM)
3193    
3194    checkpoint40pre9
3195    o added DST advection schemes
3196    o fix MPI bug on SGI's
3197    o modifications for non-linear free-surface
3198    o fixed conditionals for fixed flow/passive tracer only mode
3199    o added tension/strain form of stress tensor
3200    o changes to commenting of arguments for TAF/TAMC
3201    o added/updated many matlab scripts
3202    o added multi-dimensional advection method for tracers
3203      
3204    checkpoint40pre8
3205    o new package rw/
3206      Added method for dumping intermediate local arrays:
3207      mdsio_writetile - same as mdsio_writefield except works from inside
3208                        bi,bj loop
3209      mdsio_writelocal - same as mdsio_writetile except works for local
3210                         arrays
3211      write_local_r? - higher-level wrapper for mdsio_writelocal
3212      Controlled by diagFreq. Defaults to zero (ie. no dumps)
3213      Example given at end of mom_vecinv.F that dumps some local arrays.
3214    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
3215      control flux-form versus vector invariant code.
3216      Switch is runtime flag vectorInvariantMomentum (defaults to false)
3217      or genmake -DISABLE ...
3218    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
3219      (additional storing is now needed for case vecinv;
3220      currently nothing implemented to switch this storing off
3221      in case fluxform is used since no CPP flag available).
3222    
3223    checkpoint40pre7
3224    o bug fix in dynamics.F
3225      calc_viscosity called before k=1,Nr loop.
3226    o added some #ifdef's ALLOW_PASSIVE_TRACER
3227    o cleaned initialisations in ctrl_map_ini
3228      related to TAF
3229    
3230    checkpoint40pre6
3231    o split dynamics into thermodynamics & dynamics
3232    o corresponding split of calc_diffusivity into
3233      calc_diffusivity, calc_viscosity
3234      (kpp_calc_diff, kpp_calc_visc).
3235    o Added diffkr, kapgm to control variables
3236    o bug fix in gmredi_slope_limit for ldd97
3237    
3238    checkpoint40pre5
3239    o proper initialization of Adams-Bashforth time stepping
3240      + uses forward step for very first step of model (iter=0)
3241    o re-generated *all* output since almost all output is modified by this
3242      change (sorry but we've been putting this one off for about 2 years)
3243      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
3244        *not* regenerated since they are already out of date and I don't
3245        want to create the impression that they are suddenly working.
3246    o removed KAP stuff for DEC's
3247    o modified/added many .cvsignore files in */code and */input
3248    o added new expt "solid-body.cs-32x32x1"
3249      + this uses an alternative form of ini_curvilinear_grid.F which
3250        is not necessarily any better than the current one...
3251    
3252    checkpoint40pre4
3253    o added re-initialisations of utrans,vtrans,rtrans in
3254      calc_common_factors which are crucial for TAF.
3255    o extended iMin,jMin range for calc_common_factors,
3256      calc_diffusivity
3257    o added option ALLOW_PASSIVE_TRACER
3258    o a few minor updates and fixes
3259    
3260    checkpoint40pre3
3261    o created calc_gtr1.F for gad package
3262    o split the_main_loop and re-introduced forward_step
3263    o some recomputations of nIter0 for TAMC
3264    
3265    checkpoint40pre2
3266    o Updated to latest branch of AJA, JMC
3267    o Added gradient check package
3268    o Added routines for passive tracer handling
3269    o Added carbon sequestration sensitivity experiment
3270    
3271    checkpoint39
3272     o Modifications and fixes to support TAMC
3273       (mainly missing or wrong directives)
3274     o Corrected common blocks when fooling TAMC to produce adjoint I/O
3275       in addummy_in_stepping
3276     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
3277     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
3278     o Included following packages:
3279       cal: calendar
3280       exf: external forcing
3281       ecco: essential routines to control use of cal, exf
3282             (NB: this is not the full ECCO environment)
3283     o disabled some packages by default in genmake
3284    
3285    checkpoint38
3286     o see notes_c37_adj.txt
3287     o corrected wrong layer index in external_forcing_t
3288     o replaced the_main_loop/forward_step by the_main_loop
3289     o removed forceoutput from write_state
3290       (replaced criteria for initial/final state)
3291     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
3292    
3293    checkpoint37
3294     o mdsio.F routine split and packaged in pkg/mdsio
3295       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
3296        used unless genmake -disable=mdsio)
3297     o allow a more precise surface-geopotential gradient for the atmosphere
3298       taking into account the change in space of Alpha (=1/rho) at the surface.
3299     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
3300       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
3301     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
3302       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
3303       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
3304     o Time-Average diagnostics defined as a pseudo package "timeave".
3305     o pickup files : old pickup (before c35) did not work with new code (c35
3306       and after) unless activating 2 commented lines in initialise-varia.
3307     o Non-Hydrostatic pickup file Pb fixed.
3308     o bug with Rigid-lid version (since c35) fixed.  
3309    
3310    checkpoint36
3311     o implement Crank-Nickelson barotropic time-stepping
3312     o recover Time-Average diagnostics
3313     o fix Pb in checkpoint (PR#19)
3314     o AIM become a standard package ; clean unused CPP_kees
3315    
3316    checkpoint35
3317     o subtantial rewrite of dynamics.f
3318     o allows staggered time-stepping
3319     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
3320     o added bottom drag (linear + quadratic)
3321    
3322    checkpoint34
3323     o Modified exchange routines for correct reverse simulation.
3324     o Added verification output to comply with bug fix in impldiff.F
3325       as of c33 (exp2, natl_box).
3326     o Corrected store directives in dynamics.F
3327     o Corrected array boundaries in impldiff.F
3328     o Corrected array dimensions in gmredi.
3329       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
3330     o Added routine GLOBAL_SUM_INT to global_sum.F
3331     o Added mdsio_gl.F for ECCO purposes.
3332    
3333  checkpoint33  checkpoint33
3334   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
3335   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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