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

Diff of /MITgcm/doc/tag-index

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

revision 1.73 by heimbach, Thu May 30 22:52:25 2002 UTC revision 1.872 by dimitri, Sat Sep 15 01:38:59 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/seaice: adding ice salinity HSALT as a prognostic variable
8    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
9    o pkg/ecco: allow user defined cost function contributions
10    o testreport:
11      Allow to choose (per experiment) the list of tested output variables
12       and the main variable (used to issue a pass/FAIL ) ;
13      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
14      - default is unchange: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
15      Also modify printing of summary:
16       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
17       b) echo the list of tested variables in the individual summary.txt of
18          each experiment.
19    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
20      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
21      (but still depend on the tile decompostion of the domain).
22    o pkg/seaice: change a discretization detail to make the B-grid code
23      "more symmetric". This change is likely to remove all "ridges/leads" that
24      where quasi-aligned with the grid in B-grid solutions. It may also be
25      the solution to the stress coupling issues with the B-grid.
26    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
27      remove .cvsignore from input dir. (since testreport no longer run here).
28    o pkg/thsice:
29     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
30     - fix reshaping of sea-ice just after advection:
31       melt all the ice only if ice-volume is too small.
32     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
33       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
34     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
35    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
36      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
37    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
38      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
39      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
40      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
41      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
42      -> update output.txt
43    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
44     this affects truncation error: -> update output.txt of exp:
45      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
46      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
47    
48    checkpoint59f
49    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
50    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
51      a bounded range (in forward mode)
52    o pkg/ecco, ctrl, autodiff and mom_common:
53     internal parameter controls, completements of implementations
54    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
55    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
56      (not seem any difference in testing results).
57    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
58       at face corners.
59    o pkg/generic_advdiff:
60     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
61      loop range indices for computing vertical advection tendency
62      and do the calculation in the interior only (no overlap) ;
63      for now, only implemented for SOM advection (to save CPU time).
64     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
65    o exch2 adjoint
66      First set of changes:
67      - add exch2 hand-written adjoint templates
68      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
69        This will require cleanup in pkg/autodiff/*.F
70        (changed routines currently kept separate in verif. code/)
71      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
72        that used to hide exch2 or cubed-sphere specific code
73        (commented via 'cph-exch2')
74    o pkg/seaice
75      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
76    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
77       output of global_ocean.cs32x15.thsice .
78    
79    checkpoint59e
80    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
81      for B-grid vector (not yet tested) and C-grid vector (<- only used
82      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
83    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
84      (#ifdef ALLOW_SALT_PLUME)
85    o gather_2d/scatter_2d: removed halo regions
86    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
87      scheme and the corresponding test case (under front_relax dir). For now,
88      only available with Skew-flux form and not yet tested in realistic set-up.
89      adjoint: store directives updated, but gradient checks deteriorated,
90      so maybe GM/Redi adjoint is now broken.
91    o seaice adjoint
92      * add AREA, HEFF, HSNOW as control variable
93        (should not change lab_sea results)
94      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
95    o pkg/seaice:
96      * added computation of saltFlux in seaice_growth;
97        For time being, sea ice salinity is assumed constant
98        contribution of snow flooding to freshening of sea ice is neglected.
99        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
100        defaults to 0.0 in order to maintain backward compatibility.
101        Typical values for SEAICE_salinity are 4 to 10 g/kg.
102      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
103      * added SEAICE_availHeatFrac, which specifies fraction of surface level
104        heat content used to melt or grow ice
105      * commented out cap of HICE: it helps keep ice thinner
106      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
107      * applied OBCS T/S mask to HEFFM sea ice mask
108    
109    checkpoint59d
110    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
111     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
112     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
113    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
114     and change default value of parameter "GM_Small_Number";
115     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
116       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
117       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
118    o pkg/ecco: cost function when applying pkg/smooth to controls
119    o pkg/ctrl: add forcingPrecond run time parameter
120    o pkg/seaice:
121     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
122     - fix bug in metric terms of u-equation in LSR solver (implicit part),
123       changes verification/lab_sea
124     - rearrange implicit part of u-equation in LSR solver to make it easier to
125       read, understand, and debug. This causes changes at the truncation level.
126     - fix (serious) bug in the boundary conditions (sign error in the implicit
127       part) of the LSR solver. Changes all LSR results.
128     - fixed problem with HSNOW initialization to avoid thick snow when AREA
129       is initilized with small values - does not change lab_sea results.
130     - added HsnowFile initialization capability
131    o pkg/smooth: addition to model/src and pkg/ctrl so allow
132     initialization of pkg/smooth and application to control vector
133    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
134    o dependencies: pkg/profiles requires pkg/cal
135    o pkg/profiles:
136     - added option ALLOW_PROFILES_GENERICGRID
137         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
138         that interpolation information (grid points and coefficients) is provided
139         within the netcdf input files.
140         -> sample matlab scripts can be found in MITgcm_contrib/gael
141         that allow you to prepare netcdf input files.
142     - also modified: cleaner include statements, cleaner error print statements,
143       cleaner stops when error, and more tests of the netcdf input files consistency.
144    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
145    o pkg/seaice:
146     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
147       requires a new routine: seaice_diagnostics_fill.F
148     - make sure that seaice does not move if not forced (pressure replacement
149       method, Hibler and Ip, 1995), changes results
150     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
151     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
152       It is turned off by default (=-1.), because it changes the results.
153     - make it possible to read AREA from a file, too.
154    
155    checkpoint59c
156    o add S/R and diagnostics for oceanic mixed-layer depth
157    o move GMRedi call after all vertical mixing schemes (including KPP)
158    o pkg/thsice:
159     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
160      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
161    o pkg/obcs:
162     - bug fix for balance code
163    o pkg/seaice:
164      - allow values of SEAICE_elasticParm > 1
165      - add new parameter SEAICE_evpTauRelax as an alternative
166        to SEAICE_elasticParm
167      - make lsr boundary conditions free slip (by default), changes result
168      - add code for no slip boundary conditions for lsr
169      - set minimum of zeta to zero (and not 4e8) (changes results)
170      - add a cap on AREA after advecting AREA if seaice_growth is not called
171    o change calculation of Visbeck K:
172      - no longer depend on tapering scheme; instead, compute slope (limited
173        by GM_maxSlope). this is equivalent to what was comuted before with
174        clipping or linear tappering.
175      - fix vertical averaging (wrong by 1/2 level)
176      - leave the old version (but will not be maintained) within
177        #ifdef OLD_VISBECK_CALC / #endif
178      - update output of exp. ideal_2D_oce
179    o change error catch in calc_r_star to improve vectorization
180    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
181      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
182    o adjoint:
183      Re-organized adjoint checkpointing according to Matt Mazloff
184      (but with modifs/completions/cleanups)
185      Storing is now bundled into large arrays to optimized I/O
186      (and second step in cleanup of the_main_loop)
187    
188    checkpoint59b
189    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
190      - export/import (between ocean & coupler) fields needed for ocean DIC.
191    o pkg/seaice:
192      - get rid of three more exchanges seaice_calc_viscosities (required
193        different loop boundaries in seaice_lsr and seaice_ocean_stress)
194      - bug fix in seaice_ocean_stress (update of lab_sea required)
195      - reduce loop boundaries to necessary minimum also in seaice_evp
196      - go back to the old way of computing deltaC/Z as the adjoint likes that
197        better
198    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
199      passive tracer to an Age Tracer) + update output.txt
200    o pkg/exf:
201      - implement A-grid / C-grid selection for wind-stress input files.
202      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
203      for now, in exf_bulk_largeyeager04.F only :
204      - change implementation for case where windspeed + 2. components wind-stress
205        are read-in. AND use rhoConstFresh to convert evap.
206    o pkg/seaice:
207      - use correct EXCH_UV for wind-forcing (on A-grid).
208      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
209        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
210    o pkg/exf:
211      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
212      EXF_INTERPOLATION:
213      - merge global_with_exf/code version of exf_interp_read.F
214        to the main code ;
215      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
216        reading the file ; Important: This options needs to be defined to recover
217        previous code.
218        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
219      - no longer loose real*8 precision along the way when using exf_iprec=64.
220    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
221      - change discretisation of evp-solver in order to avoid another exchange
222        (changes lab_sea) and clean up a little
223      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
224        help the adjoint (this also changes the results slightly)
225      - add a few "_d 0" where they had been missing in seaice_evp.F
226      - cleaning up: remove unused seaice_calc_rhs.F
227    o pkg/exf: some cleaning-up:
228      - change various "constants" into runtime parameters
229      - cleaned-up Large&Yeager04 routine which should eventually
230        replace exf_bulkformulae.F (changed names of S/R and CPP)
231        and merged various ALLOW_ATM_WIND options
232     only used with thsice pkg (in thsice_get_exf.F):
233      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
234        which are used when useStabilityFct_overIce=TRUE (= the default)
235      - change default values of ice & snow emissivity and scale downward LW
236        by ice & snow emissivity.
237    o pkg/thsice:
238     fix few little problems, in thsice_calc_thickn.F:
239      - growth vertically (and not laterally) if iceFrac == iceMaskMax
240      - melt only laterally if hIce < hThinIce (as the comments say)
241      and in thsice_extend.F:
242      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
243      - start to form ice as soon as the minimum ice-volume is reachable.
244     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
245      and cpl_aim+ocn
246    o pkg/kpp
247     - move computation of surface related input fields to KPP into a new
248       subroutine kpp_forcing_surf.F
249     - remove wrong (within bi,bj loops) EXCH calls.
250     - little cleaning (add argument myThid in last position, cvs header ...)
251     - for now, fix conservation problem by exchanging KPPviscAz (may not
252       be the best fix)
253    o pkg/seaice
254     - check for inconsistent evp parameter/cpp-flag combination
255     - remove leftover errIO flat for obsolete name list error handling
256    o OpenAD
257     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
258    
259    checkpoint59a
260    o pkg/seaice: some parameter clarifications and a little bit of clean up
261    o pkg/thsice: rename run-time parameters:
262       himin       -> hIceMin
263       himin0      -> hThinIce
264       hihig       -> hThickIce
265       i0          -> i0swFrac
266       transCoef   -> bMeltCoef
267       frac_energy -> fracMelting
268      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
269       with default values (for now) that do not change the results.
270      remove old version of thsice vars advection in pkg/seaice.
271    o in FFIELDS.h:
272      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
273      - make pLoad & sIceLoad always available (but still only used if
274         ATMOSPHERIC_LOADING is #define).
275    o pkg/kpp: replaced _KPP_RL with _RL
276    o bug fixes for vertical diffusivity computations when both KPP and
277        3D diffusivity arrays are used.
278    o pkg/seaice: fix bug in evp solver, while doing that
279      - change (improve?) discretization of stress computations for both
280        cgrid-lsr and evp solver
281      - add a new routine to compute strain rates
282      - the above changes lab_sea results
283      - add no slip conditions for evp solver (off by default), lsr-version
284        may follow
285      - fix exchange for shear at Z-points (does not change lab_sea)
286      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
287        (to force the user to pick a time step since there is not "safe" way
288        of choosing it)
289      - add principal stress diagnostics
290      - rearrange fields for evp a little to avoid having to call a: too many
291        exchanges and b: exchanges for stress trensor components which we do
292        not have.
293      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
294        of evp, complete rewrite for lsr case (latter is does not yet work
295        in all cases)
296    o pkg/kpp: add code to have mixing in shelf ice caverns
297      - add myThid to all kpp routines (long overdue)
298    
299    checkpoint59
300    o pkg/exf:
301      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
302        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
303      - move exf header files from lower_case.h to UPPER_CASE.h ;
304        add missing cvs Header & Name
305      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
306      - add namelist param. selectStressGridPosition, exf_monFreq
307      - retire many _CLIM routines, and remove data.exf_clim
308        + params moved to data.exf
309        + climsst, climsss now handled by exf_set_gen, i.e.
310          climss?period=0 refers to constant field,
311          climss?period=-12 to monthly forcing
312      - split up namelists in data.exf
313    o pkg/seaice:
314      - remove seaice_exch and seaice_exch_uv
315      - remove superfluous exchange of theta
316      - add myThid to seaice_budget_ocean/ice
317      - add new interface for atmospheric wind forcing (C-grid only)
318        + new routine
319        + two new field (taux, tauy for stress over ice)
320        + removed one global field (DAIRN) for C-grid case only
321    o pkg/thsise
322      - 2nd set of modifs for thsice adjoint in conjunction with exf
323    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
324    
325    checkpoint58y_post
326    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
327      vertical diffusivity, similar to that in MOM4; turned on using
328      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
329      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
330    o Added capability for 3D specification of background vertical diffusion
331      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
332      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
333      "data" file that contains the 3D vertical diffusivity coefficients.
334    o ice dynamics (pkg/seaice) with thsice thermodynamics:
335      - add code within pkg thsice to advect & diffuse sea-ice fields
336      similar to (and will replace) what has been added in  seaice_advdiff.F,
337      but: - conserving Mass, Heat & Salt.
338           - better when using non-linear advection scheme (not yet fully tested)
339           - can also be used in atmospheric set-up (for now, only the diffusion).
340    
341    checkpoint58x_post
342    o IO option for global-file compact format:
343      - add options when generating topology (utils/exch2/matlab-topology-generator)
344      - add I/O capability (pkg/mdsio).
345      - adapt utils/matlab/rdmds.m to read this format.
346      for now long-line format not yet supported by pkg/mdsio (& exch2).
347    o shelfice: add a few diagnostics
348    
349    checkpoint58w_post
350    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
351      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
352      (and replace horiVertRatio in NH code).
353      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
354                         and tutorial_plume_on_slope (sensitive to truncation)
355    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
356      directly to drive seaice model (C-grid only)
357    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
358     - reintroduce computation of wind from stress,
359     - compute tau (in exf_bulkformulae.F) from windstress averaged to
360       mass points to avoid tau = 0
361     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
362    o rdmnc.m: make it work with "global" files created with gluemnc
363    o rdmnc.m : some improvements in dealing with singleton dimension
364      (tested on all testreport mnc output files).
365    o genmake2: disable pkg/profiles if netcdf test fails.
366    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
367    o move call to cal_readparms up to make calendar parameters/variable available
368      to all packages
369    
370    checkpoint58v_post
371    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
372      useDynP_inEos_Zc tested.
373    o pkg/exf: changes to properly interpolate/mask/scale initial fields
374    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
375      and portions thereof.  See read_cs.txt for description and examples.
376    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
377      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
378      following the great-circle arc between those 2 points.
379    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
380      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
381    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
382     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
383     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
384     - still needs work (not working with some options ; efficiency to improve)
385       and serious testing.
386     - use this scheme for temperature & salinity in 2 advection test exp.:
387       advect_xy & advect_xz, respectively.
388    
389    checkpoint58u_post
390    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
391    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
392    o testreport: add option "-skipdir" to skip some test.
393    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
394      momentum calculation.
395    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
396    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
397      remove checkpoint.F and the_correction_step.F (no longer used);
398      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
399    o add option (linFSConserveTr) to correct for tracer source/sink due to
400      Linear Free surface
401    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
402    o pkg/thsice: fix reading mnc-pickups
403    
404    checkpoint58t_post
405    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
406    o pkg/mdsio:
407     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
408       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
409       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
410     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
411     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
412       either MDS_READ_FIELD or MDS_WRITE_FIELD )
413     - new S/R (to replace MDSWRITEMETA), which allows to write more
414       informations (variable names, time ...) to meta files.
415     - modify rdmds.m to give back the meta file content.
416    o pkg/diagnostics: change vertical interpolation to be safer, and more
417       flexible (define p-levels to interpolate to in data.diagnostics);
418      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
419       diagnostic pointer.
420    o pkg/seaice: more cleaning up of seaice_growth, added many comments
421    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
422    o fix multi-category seaice:
423     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
424       SEAICE_MULTICATEGORY
425     - fix short wave heat flux
426    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
427       and allow to use EVP solver. Change forward lab_sea: test both EVP
428       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
429    o Initial check-in of lab_sea adjoint
430      (very similar to natl_box_adjoint/code_seaice)
431      * used C-grid and EVP solver
432      * used KPP, GM/Redi
433      * uses inAdExact=.TRUE.
434      * gradient checks fail for both ADM and TLM
435        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
436        f.d. gradients actually seem more problematic than ADM, TLM gradients;
437        issue is related to forward mismatch between g77 an ifort
438    o pkg/seaice: overhaul of thermodynamics
439     - growth.F and groatb.F are replaced by new routine seaice_growth.F
440     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
441     - move a few global fields out of SEAICE.h into seaice_growth.F and
442       make them 2D (FICE/QNETO/ ...)
443     - remove FO (it is the same as QNETO)
444     - introduce a few local fields to avoid modifying external fields such
445       as atemp, etc.
446    
447    checkpoint58s_post
448    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
449      changed exf_set_gen.F so that
450        genperiod=0 means input file is one time-constant field and
451        genperiod=-12 means input file contains 12 monthly means
452    o CG2D: use pre-computed solver main-diagonal (stored in common block);
453      this affects truncation error ; generate new output file for exp. which
454      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
455        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
456        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
457        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
458        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
459        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
460    o start implementation of deep-atmosphere and anelastic formulation
461    o verification: remove 2nd copy of input files and use script "prepare_run"
462      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
463    o mom_common/vecinv/fluxform: fix a few initialisation isssues
464    o profiles: fix for multithreaded case
465    
466    o diagnostics: rename few diags:
467      s/'PRESSURE'/'RCENTER '/g
468      s/'TICE    '/'oceFreez'/g
469      s/'TAUX    '/'oceTAUX '/g
470      s/'TAUY    '/'oceTAUY '/g
471      s/'SWFLUX  '/'oceQsw  '/g
472      s/DIFx/DFxE/g
473      s/DIFy/DFyE/g
474      and add few ocean-forcing diagnostics:
475      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
476    o modifications to pkg/seaice/growth.F and budget.F, which change results of
477      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
478      as actual snow thickness.  It now refers everywhere to effective snow
479      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
480    
481    checkpoint58r_post
482    o modifications to pkg/seaice/growth.F, which change results of
483      lab_sea experiment: fixes pertain to melting snow over open water, to
484      masking EVAP under sea ice, and to using the correct AREA variable for
485      computations of EVAP, PRECIP, HSNOW, and GHEFF
486    o add ability to read bathy, salt, and theta using MNC (off by def)
487    o add flooding algorithm and advection of HSNOW for pkg/seaice;
488      both are turned off by default and do no change any results
489    o seaice advection with pkg/thsice: a step toward the use of non-linear
490      advection scheme, but #ifdef or commented out for now (requires more EXCH).
491    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
492      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
493      in natl_box (affects results @ truncation level: update output.txt)
494    o multi-threading and IO:
495      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
496      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
497        (needed to work with SingleCpuIO): tested in all verif. exp.
498    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
499      affects the results (but none of the verification test uses this scheme).
500    o Adding some pkg/diagnostics capability to pkg/seaice
501      (will certainly be subject to changes)
502    o ctrl: adding new control variables:
503      lwflux, lwdown, evap, snowprecip, apressure, runoff
504    
505    checkpoint58q_post
506    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
507      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
508      high_res_cube configuration by 4% on Columbia.
509    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
510      add (in global_with_exf/code) a version of EXF_INTERP_READ without
511      dynamical allocation (seems to work in multi-threaded).
512    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
513      single CPU io) so that TAF does not have to see EESUPPORT.h
514    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
515    
516    checkpoint58p_post
517    o obcs: stop if obcs is used with useCDscheme = .true.
518    o shelfice:
519     - fix a sign error so that no slip at shelfice interface works
520     - remove stop for combination non-hydrostatic code and shelfice. That does
521       not mean, that the results are correct, but at least they are numerically
522       stable
523    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
524    o added adjoint exch routined for all exch*3d* routines
525      and updated flow directives
526    
527    checkpoint58o_post
528    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
529      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
530    o change controling S/R for writing pickup file (new S/R do_write_pickup)
531      and clean-up reading/writing of pickup files.
532    o fix local version of read/write pickup (NH part) in rotating_tank/code
533    o simplify EXCH interface:
534     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
535     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
536    o added the regrid package
537    o shelfice:
538     - add a simple boundary layer scheme to reduce noise
539     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
540    
541    checkpoint58n_post
542    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
543       local variable (not in common block).
544    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
545      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
546      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
547        to work with SingleCpuIO.
548    o add "_d 0" to real constant of pkg/cfc subroutines ;
549       update exp. cfc_exemple & tutorial_cfc_offline output files.
550    o multi-threading and IO:
551      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
552        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
553      - barrier before and after reading.
554      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
555      - avoid using MDS_WRITELOCAL for LAND pkg output.
556      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
557        common-block variables ; Allows multi-threading with master-thread IO.
558    o change default MAX_NO_THREADS from 32 to 4 ;
559      and stop cleanly when MAX_NO_THREADS is too small.
560    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
561    
562    checkpoint58m_post
563    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
564       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
565    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
566       keep global_ocean.90x40x15 (for AD testing) with former secondary test
567       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
568    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
569        add MITgcm_tutorials (= code + all the tutorials)
570    o ecco, option to compute cost for total ssh (mean+anom)
571    o consistent with addition of ptracer and ssh in pkg/profiles
572    o profiles: adding ptracer and ssh
573    o testreport: change multi-test output-file name
574      (from output.txt.{name} to output.{name}.txt)
575    o profiles: now ok for mutli-tiles case
576    o seaice: add 4 parameters for different advection schemes for area,
577      (effective) seaice thickness, enthalphy, and snow height. Their default
578      is the standard parameter SEAICEadvScheme
579    o calc_gw:
580     - add cosFacU in zonal viscous flux (harmonic.visc.).
581     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
582       of tutorial_plume_on_slope.
583    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
584    o calc_gw: true flux-form, account for horizontal grid spacing.
585      update rotating_tank results, but not plume_on_slope (affected at
586      truncation level, 11 digits).
587    
588    checkpoint58l_post
589    o calc_gw:
590     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
591     - remove side-drag for now (need to fix it); update plume_on_slope results.
592     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
593    o commit code to make SST/SSS weights spatially variable
594      (based on either variable in-situ or variable initial T/S weights)
595    o pkg/ecco:
596      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
597        now based on horizontally varying weights wthetaLev, wsaltLev
598      * cost_averagesflags now returns year indices in addition to day, month
599      * sflux balance is performed on annual basis
600        (sflxumm, sfluxmm2, bal_sfluxmm)
601      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
602        including separate counting and multipliers
603    o pkg/rbcs
604      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
605    
606    checkpoint58k_post
607    o testreport:
608     - always build in dir. "build" (if not there, mkdir build instead of building
609       & running in input)
610     - run in dir run (if it exists), in build otherwise.
611     - call prepare_run (if input/prepare_run exists)
612     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
613    o pkg/exf modifications to interpolation and rotation routines for more
614       reasonable treatment of North Pole singularity: for tracers North Pole
615       value is set to northernmost zonal-mean value, for zonal velocity it is
616       set to zero, and for meridional velocity it is set to northernmost value.
617    o pkg/exf/exf_check_range.F
618     - add tile index to diagnostics and move stop statement to the very
619       end of the routine.
620    o pkg/diagnostics: (diagnostics_main_init.F)
621      define title of isomorphic variables according to the current config.
622    o pkg/thsice with pkg/seaice dynamics:
623    - fix domain of computation (interior only, required for exf) and do exchanges
624    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
625    o towards a standard way of dealing with multi-threading in MONITOR
626      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
627    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
628       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
629    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
630    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
631    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
632       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
633    o tracer advection:
634     - clean-up and simplify calc_common_factors.F
635     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
636       advection subroutine (but still not used within DST advection S/R)
637    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
638    
639    checkpoint58j_post
640    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
641      from file (collects calls previously in FORWARD_STEP)
642    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
643    o adjoint store dir. adjusted accordingly
644    o genmake2
645      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
646    
647    checkpoint58i_post
648    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
649      on wind stress (SEAICEstressFactor defaults to 1.)
650    o Total number of Timers is finite (<=40): comment out 2 non-essential one
651      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
652    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
653      on CS-grid: no longer loosing mass.
654    o exf & curvilinear-grid: no longer modify longitude xC & xG.
655    o pkg/ggl90: fix sloppy output and fix a bug
656    o pkg/seaice: added SEAICEuseEVPpickup parameter
657      - Set to false in order to start EVP solver with
658        non-EVP pickup files when using SEAICEuseEVP
659      - fix sign error in diffusion in seaice_calc_rhs
660    
661    checkpoint58h_post
662    * Modifications for bottom topography control
663      o replace hFacC by _hFacC at various places
664      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
665      o add non-self-adjoint cg2d_nsa
666      o update autodiff support routines
667      o re-initialise hfac after ctrl_depth_ini
668      o works for 5x5 box, doesnt work for global_ocean.90x40x15
669    * Adding verification for 5x5 box (4-layer) bottom topography control
670    
671    checkpoint58g_post
672    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
673       used for mean seasonal cycle, mean diurnal cycle); add an example
674       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
675    o pkg/ggl90:
676      - add parameter (minimum surface kinetic energy)
677      - fix bug (avoiding division by zero)
678    o couple pkg/thsice to pkg/seaice:
679      - modify advection in seaice to accomodate new scalar fields to be advected
680      - only muliDimAdection scheme work with seaice/thsice
681      - mapping of thsice-variables to seaice-variables, back and forth
682      - does not break the verification experiments, but does not give the
683        desired results either
684    o pkg/seaice
685      - make (default) second order advection a bit less confusing?
686    
687    checkpoint58f_post
688    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
689      to pkg/seaice):
690      - new routines thsice_map_exf and thsice_get_exf provide the interface
691      - add an additional formal parameter to thsice_solve4temp
692    o pkg/exf:
693      - add new fields wspeed, snowprecip (to be able to couple to thsice)
694      - correct Stefan-Boltzmann constant
695      - new parameter for longwave surface emittance
696      - separate some stuff from exf_bulkformulae into new routines  
697        exf_radiation, exf_wind
698      - add new parameters and constants: longwave emissivity for ocean, ice
699        and snow, evaporation parameters over ice
700      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
701        either wind from stress or stress from wind
702    o pkg/thSIce:
703    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
704    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
705       and THSICE_CALC_THICKN
706    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
707    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
708      to make debugging easier.
709    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
710    o pkg/bulk_force:
711      - clean-up comments and parameters ;
712      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
713    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
714      generate new output for test-experiment: aim.5l_cs.thSI
715    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
716      testreport accordingly
717    
718    checkpoint58e_post
719    o SEAICE_CGRID adjoint done
720    o R_STAR adjoint implemented.
721      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
722      * need to sort out init. of h0facc, etc.
723    o Make pkg/profile fully independent of ecco,cost, etc. stuff
724      to be able to use it in pure forward.
725    
726    checkpoint58d_post
727    o upgrade simple test-experiment to tutorial example:
728     step.1: duplicate the experiment and (step.2) will remove the old copy.
729      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
730      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
731      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
732      tutorial_global_oce_biogeo    <- copy of dic_example
733      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
734      tutorial_plume_on_slope       <- copy of plume_on_slope
735      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
736      tutorial_global_oce_optim     <- empty for now (David ?)
737      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
738     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
739    o correct a sign problem in cost_scat.F
740    o obcs and ptracers: fix boundary conditions for advections schemes
741      with larger stencil
742    o thsice adjoint: start
743    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
744      completeness
745    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
746      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
747    o ptracers adjoint:
748      * avoid extensive recomputatations
749      * fix missing re-init. of gptr (missed by TAF)
750    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
751      me to turn off the excessive output to STDOUT that this package produces
752    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
753      and add those terms in Vector-Invariant formulation.
754    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
755      if the control period (xx_hfluxperiod etc) is 0
756    o in profiles pkg, clean routines and fix details
757    o in ecco pkg, reading ssh data:
758      fix problem in case the model does not start at iter0=0
759    o fix mnc-pickup/restart for ptracers
760    o new package prifiles:
761      code to compute profile-based cost by Gael Forget
762      (modifs in ecco, ctrl, autodiff)
763    o Benign bug fix in initialization (spotted by M. Mazloff) of
764      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
765    
766    checkpoint58c_post
767    o adjoint: finish NLFS adjoint and provide reference output in
768      verification/global_ocean.90x40x15/results_ad_nlfs
769    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
770      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
771      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
772      with SEAICE_CGRID defined.
773    o move calendarDumps from "data" to "data.cal" and clean-up the code
774      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
775    o add useEXF & useCAL flags (for now, set in hard-coded way)
776    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
777      (were missing in NH mode, and wrong in quasihydrostatic mode).
778      waiting for Chris updated version of calc_gw to add those CALLs.
779    o fix bug in quasihydrostatic S/R ;
780      add a test for this option: global_ocean.90x40x15.qshyd
781    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
782      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
783    o add on/off flag useOffLine for package OFFLINE
784    o seaice:
785      - modify advection so that it works also on the C-grid
786      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
787        problem in multi-tile runs with C-grid
788      - add flags for clipping ice velocities and/or masking solver forcing
789      - fix drag (ocean on ice) formulation and a bug that caused noise in the
790        C-grid solver
791      - added a few comments to seaice_diffusion.F
792      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
793        are now exclusive)
794      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
795        required re-ordering the code a little:
796       + make DAIRN global variable (defined in SEAICE)
797       + move computation of the viscosities eta and zeta into a new separate
798         routine (because I need to recompute them in seaice_ocean_stress.F)
799    
800    checkpoint58b_post
801    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
802      update output.txt of exp. aim.5l_cs.thSI
803    o various mnc cleanups and improvements:
804      + shrink lookup tables by factor of ~4
805      + better error reporting when running out of lookup space
806      + able to handle longer path/file names (up to 500 chars)
807    o adjoint:
808      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
809      - TBD: "hidden" mom_vecinv recomp. in dynamics
810    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
811     (allow to differentiate between forcing components using new integer flags:
812      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
813     and add new flag to put Dissipation tendency out of Adams-Bashforth.
814    o ecco
815      - enable trend removal from SSH anomaly obs.
816    o adjoint
817      - a fix for PmEpR when #undef EXACT_CONSERV
818      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
819      - try to fix "hidden" recomp. in forward_step for NLFS
820        (NLFS seems broken sometimes after I checked it in)
821    o seaice:
822     - add c-grid version of the dynamic solver:
823       + three new routines that are the c-grid substitute lsr, dynsolver
824         and ostres
825       + put a few fields that were local to dynsolver into global common
826         blocks, so that I can move the computation of stresses etc into
827         seaice_lsr (saves coding but may break the adjoint).
828     - replace more hardwired parameters by runtime parameters
829     - add ice masks that mask the rhs of the implicit solvers where there
830       is no ice (commented out in seaice_dynsolver, because i am not sure
831       if this works properly), eventually this should replace the clipping
832       of ice velocities in seaice_dynsolver to +/-40cm/s.
833    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
834      include it only where its needed
835    o move balancing of fluxes before the call of external_forcing_surf
836    o seaice:
837      - correct units of turning angles (now they are really in degrees)
838      - move computation of GWATX/Y out of main routine into dynsolver
839      - initialize GWATX/Y in seaice_init
840    o Apply mask on Fresh-Water flux (needed for SSH forcing).
841      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
842    o seaice: add runtime flags for turning angles (default to zero)
843    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
844      and trend from exf forcing and ctrl control adjustments
845    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
846      (since checkpoint57x_post)
847    o change the default rotation period to 86164.s = the Earth rotation
848    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
849      and based on a reference stratification. Tested within hs94.cs-32x32x5.
850    o seaice advection: add code for choosing between the default (2nd order
851      central differences) and multiDim advection schemes provided by
852      pkg/generic_advdiff
853    o seaice:
854      - removed all references to SEAICE_GRID.h fields from
855        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
856        (cubed-sphere configuration will change a little)
857      - grid computations in seaice_init are obsolete now.
858      - cleaned up code a little so that is easier to read (hopefully).
859      - added new (better?) discretizations of default advection and diffusion
860        (turn on with SEAICEuseFluxForm)
861      - replace 1 in 3d global fields by kSurface in growth.F
862      
863    checkpoint58a_post
864    o seaice:
865      - bug fix in advect.F
866    o shelfice:
867      - separate shelfice load anomaly from pload (breaks with time
868        dependent forcing), => introduce constant field shelficeLoadAnomaly.
869        Its default is 0., but it may be computed more cleverly from (unknown)
870        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
871        done offline. A good approximation of the pressure load anomaly is
872        necessary to avoid large initial adjustment processes underneath
873        deep-reaching shelfice.
874      - small fix in ISOMIP shelfice_thermodynamics
875      - add more sophisticated thermodynamics of Hellmer (1989), this is
876        now the default
877      - give a few constants more intuitive names
878    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
879      if bulk formulae are used in long integration (especially EmPmR). Turn
880      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
881      if balancePrintMean, the imbalance that is substracted is printed to
882      STDOUT.
883    o fix bug (typo) in obcs_apply_eta.F
884    o add a new package shelfice which enables us to model the circulation
885      underneath shelf-ice with draughts of hundreds of meters.
886     - works
887     - to do: + include improved thermodynamics
888              + check whether kSurfC (from model/inc/SURFACE.h) can be used
889                instead of new field kTopC
890              + can we use topoFile, Ro_surf and existing code in ini_depth.F
891                instead of new field R_shelfIce and new code in ini_depth.F
892                and ini_mask_etc.F?
893              + adjust vertical mixing schemes?
894    o seaice pkg:
895     - add a cpp-flag to include a simple formula for a salinity dependent
896       freezing point of sea water at the surface
897     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
898       meridional stresses are now different (and hopefully correct)
899    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
900       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
901       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
902    o pkg/diagnostics: add options and parameters for regional-statistics
903       diagnostics ; define regions by reading a region-mask from a file
904       (might add other options later)
905    o pkg/bulk_force:
906     - add option and parameters to use AIM surface-flux formulae.
907     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
908       others forcing fields (defined in PARM05, parameter file "data") are loaded
909       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
910     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
911     - use the right EXCH call for uwind,vwind (to work on CS-grid).
912     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
913       and parameters (note: calcWindStress replaces .NOT.readwindstress).
914     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
915    
916    checkpoint58
917    o add "--embed-source" option to genmake2 which, when the supporting
918      tools can be compiled (as determined by genmake2) will turn on the
919      embed_files package which then embeds the entire MITgcm source code
920      (*.[fFhc] + Makefile) used for the build within the executable
921      - requested by CNH but off by default
922      - adds a paltry <9MB to the mitgcmuv executable in most cases
923      - only writes the output when useEMBEDSRC in eedata is true
924    o clean up 3-dim. relaxation codes:
925      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
926      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
927      * Thanks to Tom Haine for testing!
928    
929    checkpoint57z_post
930    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
931      affects output (@ truncation level) of exp. plume_on_slope ; updated.
932    o fix the pickup behavior for obcs in combination with ptracers
933    o fix a bug in ptracers_external_fields_load
934    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
935      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
936    o transfered surface NH pressure to eta field (if exactConserv).
937    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
938         and update lab_sea output.txt file.
939    o completing 3-dim. relaxation code: additional term
940         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
941      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
942      * At compile time, in "EXF_OPTIONS.h" set
943          #define  ALLOW_CLIMTEMP_RELAXATION
944          #define  ALLOW_CLIMSALT_RELAXATION
945      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
946          tauThetaClimRelax3Dim = 15552000.0,
947          tauSaltClimRelax3Dim  = 15552000.0,
948      * 3 cases:
949          1) Use a constant-in-time 3-dim. field
950          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
951          3) Real-time relax. to time-evolving prescribed field
952    o Adding Laplacian-type smoothness constraint on
953      initial and boundary (forcing) controls (ic, bc)
954      * enable at compile-time via
955        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
956      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
957      * Absolute scale somewhat unclear so far
958      * no area weighting was included since no other cost term does so far
959    
960    checkpoint57y_post
961    First step for a NLFS adjoint
962    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
963    o new init. routines for calc_r_star, calc_surf_dr
964    o still need to deal with ini_masks_etc
965    o testreport seemed happy
966    checkpoint57y_pre
967    
968    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
969    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
970    o add new offset feature to offline pkg (plus minor cleanup)
971    o cfc fixes for final year of integration
972    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
973      be in GCHEM_OPTIONS).
974    
975    checkpoint57x_post
976    o fix testreport Pb in multiple test experiment.
977    o cleanup our namelist syntax in verification:
978      - make it more F95 standards compliant (some work still needed)
979      - allows the vast majority of our tests to work with gfortran
980    o Non-Hydrostatic:
981     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
982     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
983    o Allow to apply AB on T,S rather than on AB(gT,gS):
984     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
985     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
986       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
987     - need a "clever" read_pickup to restart from the other AB formulation
988    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
989    o remove some unused variables (reduces number of compiler warnings)
990    o adjoint
991      * Disable useVariableViscosity for adjoint for time being
992        (there are a number of extensive recomputations)
993      * Initialize certain variables needed for adjoint
994    
995    checkpoint57w_post
996    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
997                 fix the singleCpuIO RS version of MDSWRITEFIELD
998       and add a WARNING if using globalFiles=T with multi-processors.
999    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1000      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1001    o tracer advection scheme:
1002      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1003       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1004       was not very convenient).
1005      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1006       (further tests needed for the implicit DST & Flux-Limiter schemes).
1007    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1008      and sRef for convenience, handy, when you want to initialize
1009      ptracers in a large domain with a constant non-zero value. Also,
1010      untangle ptracers_init.F a little.
1011    
1012    checkpoint57v_post
1013    o change dome exp. to use variable viscosity in side-drag terms.
1014    o remove all the files from the cfc_offline test since they are now
1015      incorporated into tutorial_cfc_offline which has been producing
1016      identical results for a few days of testing
1017    o add new parameter: sideDragFactor to enable half-slip-side BC
1018      and change side-drag S/R to use viscosity from mom_calc_visc
1019      (can switch back by setting sideDragFactor=0.); affects results at
1020      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1021       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1022    o vorticity & strain are now computed without masking, to account for
1023      no-slip-side BC in variable viscosity calculation ; mask is applied
1024      anyway later on, before computing advection/coriolis terms.
1025    o modify exp4 to test new obcs support for reading from external files
1026      and for passive tracers
1027    o fix behavior of ptracers_monitor when monitor output is written to a
1028      netcdf-file; still not independent of monitor.F (writes in the same
1029      file).
1030    o change default value of tRef (put a uniform, meaningful value for ocean
1031      & atmos) and initialize sRef (was missing, as Martin mentioned).
1032    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1033      to be proportional to enstrophy dissipation length.  Thus,
1034       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1035      This is now consistent with Smagorinsky and with the manual.
1036    
1037    checkpoint57u_post
1038    o OBCS and PTRACERS: add open boundary support for passive tracers
1039      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1040        OB-values from file; this is not different from the way theta and salinity
1041        are treated
1042      - however, Orlanski-radiation conditions are not supported, and the model
1043        will stop if you use pTracers and Orlanski at the same time.
1044      - beefed up the rountine obcs_external_fields_load: now only those open
1045        boundary values are overwritten with values from files for which there
1046        are really files, otherwise the OB-fields remain untouched. This makes
1047        it possible to use different OBs at different ends of the domain (as
1048        with EXF)
1049    o reduce number of exch calls in shap_filt (s2).
1050    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1051      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1052    
1053    checkpoint57t_post
1054    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1055    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1056      same truncation, independent of the face number: affects affects several
1057      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1058    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1059      note that biharmonic viscosity + no-slip was not tested in any experiment.
1060    o fix bug in non-linear free-surf side-drag ; generate new output for
1061      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1062    o make mnc honor the writeBinaryPrec flag for most kinds of output
1063    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1064    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1065      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1066    o add brackets in multi-terms sum to get same truncation, independent of
1067      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1068      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1069    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1070      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1071      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1072      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1073      Suggested values of viscosity parameters found in mom_calc_visc.
1074      Many new viscosity diagnostics available.
1075    
1076    checkpoint57s_post
1077    o Add clearing-house for viscosity calculations, mom_calc_visc and
1078      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1079      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1080      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1081      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1082      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1083      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1084      ViscAhStrain and viscAhTension are now retired.
1085    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1086    o In response to JMC's bug report, genmake2 now ignores any soft-links
1087      that it finds in the *current* directory when searching for files.
1088      Soft-links found in any other source directories will still work as
1089      they did before.
1090    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1091      a C routine to unlimit the stack size
1092    o mnc-ify pkg/aim snapshot vars
1093    o mnc-ify pkg/land as requested by Daniel
1094    o various changes to mnc including:
1095      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1096      - output can now be grouped so that all files within a group
1097          change the ITER portion of their names in lock-step together
1098      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1099          and works with both EXCH1 and EXCH2 (but needs more testing)
1100      - writing works for all verification test cases w/ g77 on Linux
1101    
1102    checkpoint57r_post
1103    o make MNC variable initialization happen earlier
1104    o add diagnostics for (almost) each term of the momentum Eq.
1105    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1106    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1107    o remove MINIMAL_TAVE_OUTPUT option ;
1108      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1109    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1110      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1111    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1112    o add time-dependent SST, SSS control
1113    o cost terms in ecco/ modularized (new cost_generic.F)
1114    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1115    o new infrastructure for seaice model vs. obs misfits in seaice/
1116      * driver from the_main_loop.F is seaice_cost_driver.F
1117      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1118      * gradient check in Exp. 6a of natl_box_adjoint/
1119    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1120      (see README file)
1121    
1122    checkpoint57q_post
1123    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1124    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1125      - bug was reported by Jean-Michel and Ian Fenty
1126    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1127      update exp. cpl_aim+ocn output.
1128    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1129      Needed for high-res. runs with large global files
1130      to be able to limit tapelev size
1131    o Changed some tests for adjoint:
1132      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1133      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1134      * global_ocean.90x40x15/ back to default 3-level checkpointing
1135    o Modifications to enable scripted COMMON to MODULE conversion
1136      * verification/OpenAD/code/ has necessary scripts and description;
1137      * converts, compiles and runs successfully;
1138    
1139    checkpoint57p_post
1140    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1141    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1142      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1143    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1144    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1145      (was already the case for dissipation with mom_vecinv,
1146       and also the case for grad.PhiHyd when staggered-timeStep)
1147      This will allow to put dissipation out-off the AB time-stepping.
1148     Unfortunately, affects truncation error. Update output of exp. that "fails"
1149      (cg2d matching number) and leave the others for later: front_relax(10),
1150      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1151      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1152    
1153    checkpoint57o_post
1154    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1155      (2) its ready to be documented during the 20050801 DocFest
1156    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1157      for ideal_2D_oce and lab_sea on linux_ia32_g77
1158    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1159      in global1x1_tot/code_seaice_adj to access indices 32, 33
1160      (worth another tag)
1161    
1162    checkpoint57n_post
1163    o adding precip control xx_precip 32
1164    o adding swflux control xx_swflux 33
1165    o Replacing 10 forcing penalty cost routines by 1 generic.
1166    o Implementing partitioning in time-mean and variable adjustment
1167      for atmos. state.
1168    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1169    o in natl_box_adjoint:
1170      * updated exp 1 to 10
1171        (but does not have time-mean vs. variable split results yet)
1172    o updated global1x1/*_seaice_adj/
1173      to incorporate latest changes
1174    o enable useSingleCpuIO for mdsio vector routines
1175      (applies in particular to tapelev I/O)
1176    o removed inefficient K-loop in all active_file*control*.F
1177    
1178    checkpoint57m_post
1179    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1180      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1181    o pkg/exch2: filling of face-corner halo regions is optional
1182      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1183    
1184    checkpoint57l_post
1185     tag before updating tutorials (pre-release-2)
1186    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1187       for output and interpolation of input fields onto model grid)
1188    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1189       Affects results of exp. rotating_tank ; update output.txt.
1190    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1191          and taking the square quantity and/or using a fraction-weight field.
1192    o fix aim_diagnostics_init.F mate numbers.
1193    o add mnc output capability to diagnostics/diagstat and update
1194      our cvsignore files for the ACSII output generated
1195    
1196    checkpoint57k_post
1197    o lab_sea now uses diagnostics package and provides a suite of
1198      new EXF diagnostics output.
1199    
1200    checkpoint57j_post
1201    o exf
1202      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1203        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1204        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1205      * extended diagnostics output
1206        - now includes all EXF variables
1207        - hs, hl moved to common block
1208        - separate S/R for diagnostics, called after ctrl vector is added
1209        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1210        - EXFqnet contains true Qnet (i.e. includes qsw)
1211      * updated verif. lab_sea, global_with_exf
1212      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1213        to ensure that diagnostics sees a true EXFqnet
1214    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1215    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1216      several times with different frequencies.
1217    o mnc-ify the thsice package as requested by Daniel Enderton
1218      - the monitor--MNC output needs work
1219      - many attributes need to be added (most are currently blank)
1220    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1221      - many attributes need to be added (most are currently blank)
1222    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1223    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1224    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1225      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1226         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1227    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1228     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1229    
1230    checkpoint57i_post
1231    o Diagnostics package was changed: diagnostic allocation is now deactivated
1232      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1233    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1234      add 1rst Order upwind vertical Shear.
1235    o add a quick fix for A/B checkpointing in OFFLINE mode
1236    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1237      end-run around the C/Fortran linking horror in eesup/src/timers.F
1238    o added pkg/runclock: allows user to terminate run based on wall clock
1239    o added non-hydrostatic scaling parameter: nh_am2
1240    o pkg/my82: futile attempt to make results compiler-independent by adding
1241      some "_d 0", etc. no effect.
1242    o for mnc output, fill the 'T' coordinate var with myTime and create a
1243      separate 'iter' variable for iteration count
1244    o pkg/diagnostics:
1245      add new capability: output of Global/Regional & per-level statistics ;
1246      tested against monitor output (including land & thSIce) on various exp.
1247    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1248    
1249    checkpoint57h_done
1250      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1251      data.diagnostics, data.gchem, data.ptracers) is done.
1252    
1253    o pkg/diagnostics: prepare for Global/Regional statistics.
1254      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1255    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1256      and rename it: DIFFERENT_MULTIPLE
1257    
1258    checkpoint57h_post
1259    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1260    o pkg/diagnostics: change output frequency, now in seconds (instead
1261      of Nb of iterations). This requires to change data.diagnostics.
1262    checkpoint57h_pre
1263    
1264    o in mnc, let the user create the output dir if both mnc_outdir_date
1265      and mnc_outdir_num are false
1266    o add fflags() to pkg/diagnostics which allows one to specify, on a
1267      per-file basis, the file precision [default behavior is unchanged]
1268    o added diagnostics to pkg/kpp, including computation of mixed layer
1269      depth based on a temperature/density criterion
1270    o updated verification/natl_box to test the new pkg/kpp diagnostics
1271    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1272    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1273    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1274      not mnc -- this mistake was found by JMC and is now corrected
1275    
1276    checkpoint57g_post
1277    o add Adams-Bashforth 3rd Order time stepping:
1278      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1279      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1280    checkpoint57g_pre
1281    
1282    o make lambda[Theta,Salt]ClimRelax spatially varying
1283      (default remains spatially uniform constant based on tau)
1284    o added new control variables
1285      * init. uVel, vVel, etanN
1286      * lambda[Theta,Salt]ClimRelax
1287    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1288      (suggested by G. Forget)
1289    
1290    checkpoint57f_post
1291    o add parameter "baseTime" = model base time = time at iteration zero
1292      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1293      account for baseTime shift
1294    o move Coriolis arrays from PARAMS.h to GRID.h
1295    checkpoint57f_pre
1296    
1297    o mnc-ifying the seaice package
1298    o introduced an alternative length scale calculation for use in the limiting
1299      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1300    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1301    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1302      as well as grad(vort3).  Made it compatible with both approximate form
1303      for the cubed sphere and full form of these gradients.  Added flag
1304      useFullLeith to select between approximate and full form.  
1305    o add "d0" in getcon.F to reduce differences between compilers/platforms
1306      update output.txt of exp. fizhi-gridalt-hs
1307    o change port_rand funtion to allow to set the seed.
1308    o fix obscure MNC bug involving conversion between reals and integers
1309      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1310        new version is now more standards-compliant
1311    o adjoint-related modifications
1312      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1313      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1314      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1315    
1316    checkpoint57e_post
1317    o Adding eddy stress controls a la Ferreira et al.
1318    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1319    
1320    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1321      update output.txt of exp. fizhi-gridalt-hs
1322    o add more "Z" dimensions and associated coordinate vars to MNC
1323    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1324    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1325      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1326      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1327      months and years.  Requires pkg/cal.
1328    o diagnostics: add pickup functionality
1329      - off by default for backwards compatibility
1330      - current version only uses MDSIO -- MNC will be added
1331    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1332    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1333    
1334    checkpoint57d_post
1335    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1336    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1337      output from the diagnostics package
1338    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1339    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1340      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1341    o add coordinate variables to the MNC output from the diagnostics package
1342    o change MNC-flags default value: true when useMNC=TRUE
1343    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1344      the ability (off by default) to read the grid information using MNC
1345    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1346    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1347    o do snap-shot diagnostics at the middle of the time-interval (instead of
1348      at the end).
1349    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1350      new test for AIM with thSIce + slab-ocean
1351    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1352    o move state variable diagnostics to the beginning of the time step ;
1353      (note: still needs some work specially for snap-shot diagnostics)
1354      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1355    
1356    checkpoint57c_post
1357    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1358    o generate new output.txt files on faulks with g77 & the new -ieee option
1359    checkpoint57c_pre
1360    
1361    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1362      update output.txt of exp. global_ocean.90x40x15
1363    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1364      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1365    o add saltFlux(+File) forcing capability with periodicExternalForcing
1366    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1367    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1368    o improvements for the MNC output from DIAGNOSTICS:
1369      - correct handling of the unlimitied dimension
1370      - all dims now have associated coordinate variables
1371      - variables located at U, V, and Corner ("Z") points are now written
1372        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1373        *all* data points are output
1374    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1375    o added pkg/seaice/seaice_monitor.F
1376    o mdsio_readfield.F can now read files visible only to master MPI process.
1377    o pkg/seaice: some test code for ice-modified ocean stress
1378    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1379      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1380      spurious negative numbers for precipitation and humidity.  Will cause
1381      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1382    o pkg/ctrl/
1383      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1384        May be enabled via doPackDiag
1385      *  introduce z-scaling of
1386         + gradient (doZscalePack) and
1387         + control (doZscaleUnpack)
1388    o pkg/mdsio/
1389      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1390      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1391    
1392    checkpoint57b_post
1393    o simplify options in diagnostics_fill arguments (remove weird combinations)
1394    o fix MNC coordinate variables so that they now contain per-face index
1395      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1396      general, EXCH2 grids are only aligned to a "local" coordinate system
1397    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1398    o Implement instantaneous output within pkg diagnostics:
1399      setting a negative frequency in data.diagnostics produces
1400     "snap-shot" output (as opposed to time-average if freq > 0)
1401    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1402      NOTE: change ptracer diagnostics name: use 2 characters to work with
1403            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1404    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1405      becomes the coordinate variable for the 'T' dimension
1406    o add CF-style coordinate variables to MNC
1407      - just a first cut:  numbers are meaningless on the cubesphere and
1408        missing along the T axis but otherwise it works!
1409    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1410    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1411    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1412      this is based directly on what the model compute, so that the content of
1413      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1414    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1415    o clean up build options files for SunOS, in particular
1416      - remove -traditional from xmakedepend
1417      - change -xarch=v9 to -xarch=native for f77
1418      - restore use of make (not gmake)
1419      - add CC=gcc if using g77
1420    o changes per discussion of AM, JMC, & EH3 today:
1421      - move redundant "grid" variables out of "state" -- in preparation of
1422        creating proper CF-style coordinate variables and in recognition
1423        that any/all grid variables can be easily copied (eg. w/NCO) from
1424        the grid files into any of the other NetCDF files
1425      - *always* output grid variables with MDSIO (this will eventually be
1426        changed)
1427      - output MNC grid file if useMNC is true
1428    o every instance of _END_MASTER() has been found and replaced with
1429      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1430      preprocessors
1431    o re-arrange diagnostics pkg initialisation:
1432     - allow each package to extend the available diagnostics list
1433     - add some checking and fix small problems (multi-threaded, ...)
1434     - new S/R diagnostics_fill (replace fill_diagnostics):
1435       look through the short list of active diag. (instead of the long list)
1436       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1437    
1438    checkpoint57a_post
1439    o this set of changes restores TAMC compatibility
1440      tested for global_ocean.90x40x15 adjoint on trough
1441      (what a pain)
1442    
1443    checkpoint57a_pre
1444    o some modifs in tools/build_options for sunos
1445    o call ctrl_pack for ctrl at end for optimcycle=0
1446    
1447    checkpoint57
1448    o add horizontal bi-harmonic viscosity for vertical velocity
1449      - new parameter viscA4W (defaults to viscA4)
1450      - affects only non-hydrostatic code
1451      - to be done: no-slip lateral boundary conditions
1452    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1453    o implement Implicit Vertical advection for pTracers
1454    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1455      (implemented also for implicit vertical diffusion & advection)
1456    o OBCS: extend application of tracer open boundary conditions
1457      to a strip beyond the boundary of width Olx/Oly
1458    o add call monitor to TAF set of required calls (flow directives)
1459      and include in natl_box_adjoint
1460    o untangle a few ifdefs related to cost, ctrl, autodiff
1461      untangel a few ALLOW_ECCO_OPTIMIZATION
1462    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1463      (theta2, salt2 in ecco_cost_weights)
1464    
1465    checkpoint56c_post
1466    o OBCS as control variables
1467      - update ctrl_ad_diff.list, obcs_ad_diff.list
1468      - remove balance of obcs controls from default
1469      - fix index bug nobcs in ctrl_init
1470      - fix dummy fields filen in ctrl_pack
1471      - add dummy weights for obcs
1472    o lsopt: comment out fort.94 output
1473    o optim:
1474      - remove unnecessary header files
1475      - adjusted namelists
1476      - add xerbla.F to Makefile
1477    o exf:
1478      - multiple modifications of exf_check_range
1479      - unit change in exf_init_runoff from [m/year] to [m/s]
1480    o mdsio:
1481      - i/o-vector change debugLevel from debLevA to debLevB
1482    
1483    checkpoint56b_post
1484    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1485      is called from DO_THE_MODEL_IO
1486      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1487      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1488      - clean up PTRACERS_WRITE_TIMEAVE a little
1489    o add another verification experiment that tests both the cfc-pkg and
1490      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1491      reactive tendencies treated inline with regular timestepping
1492    o testreport previously did a lousy job of comparing small numbers, so
1493      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1494      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1495      testreport.
1496    o ptracers_monitor: bug fix for MPI
1497    
1498    checkpoint56a_post
1499    o GCHEM: finish reorganizating the package
1500      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1501        (introduces another 3D-array for each passive tracer, but only if
1502        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1503        gchemTendency is not needed because the timestep is done separately)
1504      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1505      - GCHEM is now---more or less cleanly---separate from PTRACERS
1506      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1507        so clear to me how that should be done in a general way.
1508    o CFC: improve formatting of output in CFC_ATMOS
1509    o PTRACERS:
1510      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1511        that ALL experiments with ptracers enable can be checked. This makes
1512        GCHEM_MONITOR obsolete.
1513      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1514        monitorFreq
1515      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1516    o add PTRACERS (PTR0[1-5]) to testreport output
1517    o exf_check_range:
1518      * default changed to .TRUE.
1519      * will check values for niter0 if debLevA, every timestep if debLevB
1520      * STOP in exf_check_range if 'out of range'
1521      * range chosen generous to allow for potential extema
1522      TBD: a version with stricter range
1523           permitted range would be runtime parameters
1524    o GMredi:
1525      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1526      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1527      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1528    o GCHEM:
1529      - move call to GCHEM_FORCING_SEP, so that it is now called before
1530        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1531      - introduced a useGCHEM runtime flag and applied it everywhere.
1532      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1533        this flag is now only visible within GCHEM-pkg routines.
1534      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1535        be replaced by a 3D array that is computed before thermodynamics; for
1536        this, the tracer ID iTracer had to be included into the parameter list
1537        of ptracers_forcing
1538      - set up forward_step to call gchem_forcing, that will replace
1539        gchem_forcing_int in ptracers_forcing
1540      - cleaning up
1541    o small cleaning of exch2: remove files that are also in eesupp/src
1542    
1543    checkpoint56
1544    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1545    o mnc: cleanup "full" files--fixes out-of-memory problem
1546    o ECCO-GODAE
1547      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1548      * fully merged and updated from SIO code
1549        windstress sign change affects
1550        - exf_inscal_[u/v]stress
1551        - sign of xx_tau[u/v] adjustments
1552        - signs in cost_scat
1553      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1554      * natl_box_adjoint updated and compressed
1555      * 2-level checkpoint switch added
1556        (tested in EXP. 1 of natl_box_adjoint)
1557      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1558    o SVD
1559      * first complete, non-hacked version for SVD calculations
1560      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1561        performed via direct access files admtlm_vector.it????
1562        (via ctrl_[un]pack)
1563      * optimcycle is used for ARPACK iteration counter
1564        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1565      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1566        and add linear transforms where necessary
1567      * controls are initial/final SST, SSS (can be extended; need to check
1568        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1569    o mdsio: filename info to both stderr, stdout
1570    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1571      from sign change
1572    
1573    checkpoint55j_post
1574    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1575      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1576    o add consistent build directories and .cvsignore files to verification
1577    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1578    o make all subroutines 30 or less characters in length for certain older
1579      compilers to work (a thorough search only turns up two routines in
1580      pkg/ptracers)
1581    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1582      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1583    
1584    checkpoint55i_post
1585    o change arrays for total vertical diffusivity (2.D if explicit,
1586      3.D if implicit) ; each ptracer uses its own background value.
1587    o added mnc/NetCDF output capability to ocn_compon_interf
1588      - added bits to verification/cpl_aim+ocn so that it can run on
1589        ITRDA and other clusters without the mpirun "-wd" option
1590    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1591      configuration
1592    o give MNC the ability to create additional files rather than
1593      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1594      - the default is just less than 2GB which is a practical limit
1595        on many systems
1596    o Compute the non-local term using either KPP vertical diffusivity (=default)
1597       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1598    
1599    checkpoint55h_post
1600    o add verification test "vermix"
1601    o remove all the *_ioinc flags and replace with the single global
1602      outputTypesInclusive flag
1603    o allow to set a vertical profile of vertical diffusivity for T & S
1604    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1605    o useMNC moved from data.mnc to data.pkg
1606    
1607    checkpoint55g_post
1608    o Renaming carbon AD experiments to comply with testreport conventions
1609    o Updating adjoint of Held-Suarez hs94.1x64x5
1610    o Fixing directives for non-ECCO forward_step, after ECCO directives
1611      have been fixed to avoid recomp. of do_oceanic_phys
1612      Works well for global_ocean.90x40x15,
1613      but recomp. issue remains for carbon
1614    o Updating adjoint output for natl_box_adjoint after
1615      pkg/ecco has been modified (see taga c55d_post)
1616    
1617    checkpoint55f_post
1618    o rename to timeave_init_fixed
1619    
1620    checkpoint55e_post
1621    o some delicate re-shuffle of store directives to avoid one
1622      extra call of do_oceanic_physics
1623      affects ecco_the_main_loop.F, do_oceanic_physics.F
1624      checkpoint_lev1_directives.h
1625    o NB: this may break global_ocean adjoint temporarily,
1626      but it is clear how to fix it. Will do later, need this now.
1627    
1628    checkpoint55d_post
1629    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1630    o ecco_cost_weights is modified to 1x1 runs
1631    o modifs to allow observations to be read in as
1632      single file or yearly files
1633    o enable to read exf forcing fields as either
1634      single file or yearly files (flag useExfYearlyFields)
1635    checkpoint55d_pre
1636    
1637    o switch between 2-level and 3-level checkpointing
1638    o add ability of MNC to write local and "partial" (eg. 2D slices where
1639      the full 3D field is never actually stored) arrays to NetCDF files
1640      with the correct (that is, the complete multi-dimensional) set of
1641      array indicies
1642      - used in mom_vecinv() to write the diagFreq output
1643      - tested (demonstrated) in verification/aim.5l_cs
1644    o further mnc-ification
1645      - add verification/lab_sea to the list with mnc setups
1646      - fix undefined mnc v-names in cd_code
1647      - add kpp to mnc output (both snapshot and timeave)
1648    o non-hydrostatic code
1649      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1650        in calc_gw.F
1651      - defaults to viscAh
1652      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1653        friction or Leith) in non-hydrostatic mode, as long as there is
1654        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1655    o pkg/cost
1656      extend simple cost functions to treat time mean quantities
1657      (T,U,V) via cost_accumulate_state from cost_tile
1658    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1659        be 2 times larger than the minimum size the advection scheme requires.
1660        now get a perfect conservation of salt in advect_cs test-exp (updated)
1661    o GGL90 (Gaspar's TKE mixed layer)
1662      - add horizontal diffusion of TKE, requires exchanges in
1663        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1664        default. In OPA there is no horizontal diffusion of TKE but the
1665        mixing coefficients are computed from a horizontal average of TKE of
1666        6 points or so. I think that diffusion has a little more physical
1667        justification.
1668      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1669        was in vain)
1670      - mask tke-variable in ggl90_init
1671    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1672    o fix biharmonic diffusion on CS-grid.
1673    o more obcs stuff
1674      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1675        for reading boundary values. This routine is called from
1676        obcs_prescribe_read
1677      - updated obcs_check
1678      - changed sponge layer relaxation parameter units for days to seconds
1679      - turned off sponge layer by default
1680      - changed argument list of OBCS_CALC to myTime+deltaTclock
1681      - fixed about 35 bugs in obcs_external_fields_load
1682    
1683    checkpoint55c_post
1684    o obcs stuff
1685      - new runtime flags useOBCSprescribe, useOBCSbalance
1686      - re-arranged obcs_calc
1687      - moved exf_getobcs to obcs_prescibe_read
1688        obcs_prescibe_read is called after ORLANSKI stuff
1689        and independent of it (executable can contain all).
1690      - updated obcs_check
1691      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1692        These may be necessary only if tangential velocities are
1693        prescribed at OB, not sure, needs testing.
1694    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1695      which simplifies the calls and passes the ifc check-bounds test
1696    
1697    checkpoint55b_post
1698    o add a 2D scalar, Z location, exchange_2 routine.
1699    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1700      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1701      affects advect_cs results (for the wrong reason): update output.txt
1702    o use a more standard discretization for biharmonic viscosity ;
1703     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1704      affects results of dome set-up: update output.txt
1705    o fix gad_advection.F (CubedSphere part), back to version 1.23
1706    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1707    
1708    checkpoint55a_post
1709    o merged code to
1710      * prescribe/read time-dependent open boundaries
1711        (works in conjunction with exf, cal)
1712      * sponge layer code for open boundaries
1713      * each boundary N/S/E/W now has its own CPP option
1714        (healthy for the adjoint)
1715    
1716    checkpoint55
1717    o up-to-date adjoint of previous breaks
1718      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1719      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1720      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1721      - carbon: * remove tr1-related adjoint verification
1722                * add ptracer as control variable
1723    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1724      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1725    
1726    checkpoint54f_post
1727    o in verification/carbin/ remove experiment related to
1728      ALLOW_PASSIVE_TRACER (array tr1 etc)
1729      code_ad/ input_ad/ results_ad
1730    
1731    o add two new packages
1732      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1733        + subject to optimization (memory)
1734      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1735        + subject to reordering (many GOTOs in the original code)
1736        + so far opps is called for every (i,j) point, and then operates in
1737          the vertical; one may want to reorder the scheme in order operate in
1738          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1739          fields)
1740    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1741      - all verification tests compile and run with linux_ia32_g77
1742      - defaults are compatible with current input files--nothing
1743        should change if you were not previously using MNC
1744      - MNC output has been added in numerous places (eg. timeave)
1745        but there are still a few writes not yet do-able with MNC
1746        (this is in progress)
1747      - flags now allow for either/or/both use of MDSIO and MNC and
1748        documentation will soon follow
1749      - numerous small formatting cleanups for ProTeX
1750    o add version info (via BUILD_INFO.h) to MNC and stdout
1751    
1752    checkpoint54e_post
1753    o add two new packages
1754      - pp81 (Packanowski and Philander, 1981), Richardson number and
1755        stratification dependent mixing
1756      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1757      - these scheme operate in a similar manner as KPP (without ghat, of
1758        course), however there is only one diffusivity that is used for both
1759        temperature and salinity (and passive tracers)ç
1760    o add offline package
1761    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1762      provided by Stephanie Dutkiewicz
1763    o genmake2: add ability to search for C compilers and cleanup test output
1764      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1765    
1766    checkpoint54d_post
1767    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1768    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1769      leading to additional shift by 5 days each year of integration
1770       (i.e. leading to considerable offset over the years)
1771    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1772    o start with no AB and no initial filtering (staggerTimeStep):
1773      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1774    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1775      (external loading & cpl import/export stay in forward_step.F)
1776    o update coupling interface to work with new staggerTimeStep
1777    o change MDSIO ptracers_pickup.
1778    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1779    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1780    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1781    
1782    checkpoint54c_post
1783    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1784      this affects (truncation error) output.txt of test-exp:
1785       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1786    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1787    o change Qnet to always be the net heat flux, (+upward).
1788      affects (truncation error) output of natl_box exp.: updated
1789    o define the max number of passive tracers in PTRACERS_SIZE.h
1790    o start to test mnc routinely in exp0
1791    o add sea-ice loading (sIceLoad) as a new forcing field.
1792    
1793    checkpoint54b_post
1794    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1795       impressive on Altix and Opteron systems)
1796    o diagnostics can now write NetCDF files through the mnc package
1797    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1798    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1799    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1800      affects (truncation error) output of lab_sea & natl_box exp.: updated
1801    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1802    
1803    checkpoint54a_post
1804    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1805    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1806    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1807    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1808      + internal_wave (shift in writing cg2d_ini_res)
1809    checkpoint54a_pre
1810    
1811    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1812      - modified verification/lab_sea and natl_box_adjoint accordingly
1813    
1814    checkpoint54
1815    checkpoint53g_post
1816    o prepare splitting of thermodynamics: store convect.counter in common block
1817    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1818      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1819    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1820    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1821    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1822    o restore adjointability
1823    
1824    checkpoint53f_post
1825    o modifications that affect AIM experiment results (update output.txt):
1826      - no advection of S at top interface Nr (pkg/generic_advdiff)
1827      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1828    o AIM pkg:
1829      - include stability function into surf.Flux derivative relative to Tsurf
1830      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1831    
1832    checkpoint53e_post
1833    o merged cylindrical coord configuration
1834    o added rotating_tank experiment
1835    checkpoint53e_pre
1836    
1837    checkpoint53d_post
1838    o faulks upgraded: re-generate output.txt that have changed:
1839       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1840    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1841    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1842    o added Sadourny discretization of Coriolis
1843      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1844      - re-enabled use of omega3 (useAbsVorticity)
1845    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1846      vector-invariant equations
1847      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1848    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1849      hopefully without new bugs
1850      - still to do: biharmonic friction for non-hydrostatic w
1851    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1852    o regenerated output for global_ocean_ebm (using -ieee)
1853    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1854      of mom_common/
1855      - simple re-arrangement of instructions within computing loop
1856    checkpoint53d_pre
1857    
1858    checkpoint53c_post
1859    o new version of coupler for AIM+thSIce and Ocean models
1860     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1861     - land: change Evaporation of snow
1862     - aim with thSIce: fix bug in snow-precip.
1863    o changes to calc_gw.F
1864     - bug fix for w^2 term near the bottom boundary
1865     - (hopefully) improve the lateral slip boundary condtions for use with
1866        partial/looped cells
1867      - because the bug fix changes two verification experiments anyway (exp5
1868        and plume on slope), change the lateral boundary condition from half slip
1869        to the value of no_slip_sides
1870    o ebm package wasnt quite up to the parallel task. Fixed that.
1871    o Adjoint of EBM package + verification
1872      * TLM OK
1873      * ADM not sufficient accuracy yet (needs further testing)
1874    
1875    checkpoint53b_post
1876    o Commiting new energy balance model to repository
1877      * package is pkg/ebm
1878      * verif. is verification/global_ocean_ebm
1879      * references are in ebm_driver.F
1880    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1881    C        Global thermohaline circulation. Part I:
1882    C        Sensitivity to atmospheric moisture transport.
1883    C        J. Climate 12(1), 71-82
1884    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1885    C        Global thermohaline circulation. Part II:
1886    C        Sensitivity with interactive transport.
1887    C        J. Climate 12(1), 83-91
1888    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1889    C        Destabilization of the thermohaline circulation
1890    C        by atmospheric eddy transports.
1891    C        J. Climate 7(12), 1870-1882
1892    o Will need long integration testing.
1893    checkpoint53b_pre
1894    
1895    o created pkg/mom_common in preparation for variable viscosity code
1896    o renamed and split ini_mnc_io
1897    o pkg/land: only liquid water can diffuse or run-off
1898    o AIM using land: soil wetness availability account for snow
1899    o added printMapIncludesZeros to EEPARMS namelist
1900    
1901    checkpoint53a_post
1902    o restore TAMC compatiility for exf_constants.h
1903      (no usage of _d in .h)
1904    o Additional storing in KPP in an attempt to fix
1905      TAMC problem with adjoint of KPP code.
1906      (no success...)
1907      Identical code works fine with TAF.
1908    o Fixed verification/natl_box_adjoint experiments.
1909      Initial conditions for Experiments 4 and 5 are now
1910      set to "SEAICE_initialHEFF=0", which is more reasonable,
1911      and hence gives results closer to that of Experiment 2.
1912      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
1913    
1914    checkpoint53
1915    o stable checkpoint with up to date adjoint
1916      TLM tests only run for 1st grdchk at the moment. Its unclear if
1917      this is a code problem or a problem with resetting code for g_
1918      variables that is being autogenerated wrong.
1919      Otherwise:
1920       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
1921       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
1922         are both still in chaos following their security messes.
1923    
1924    checkpoint52n_post
1925    o various build (mostly genmake2) changes including:
1926      - ability to build/run more easily within Cygwin and MacOS X
1927      - more complicated Makefiles with a stronger dependence on Gnu Make
1928    o pkg/seaice modifications
1929      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
1930        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
1931        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
1932      - changed proxy for geostrophic velocity and updated
1933        verification/lab_sea/results/* accordingly
1934      - removed ADI dynamic solver from pkg/seaice
1935      - replaced all occurrences of 1/CSTICE or 1/CSUICE
1936        they caused a segmentation fault under certain circumstances
1937      - removed unused field WATR
1938    o bug fix in exf-package:
1939      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
1940         now reflect that.
1941    o small fixes in the cal-package:
1942      - set reference date to first of January for the 'model'-calendar
1943      - failing of cal_CheckDate in cal_FullDate now actually results in a
1944        warning
1945    o small modifications in exf-package to increase flexibility:
1946      - change climtempfreeze from a constant to a runtime parameter that
1947        is specified in data.exf_clim (default = -1.9)
1948      - introduce runtime parameter windstressmax (default = 2.0) that is
1949        specified in data.exf
1950    o fix in pkg/thsice:
1951      - update Evap (Tsf changes) to be consistent with Latent heat flux
1952      - maintain snow precipitation unchanged (even if Tsf >=0).
1953     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
1954    
1955    checkpoint52m_post
1956    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
1957      this does not change any of the results, because myIter=0 in swfrac always
1958      lead to jwtype=2 (the default anyway), but the call makes little sense
1959      as a default
1960    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
1961    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
1962      atmospheric model (AIM) to use it ; add a "slab ocean" component.
1963    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
1964    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
1965    o extending useSingleCpuIO option to work with new exch2 I/O format
1966      - old-style, missing-tile I/O is still accessible by defining CPP
1967        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
1968    o monitor package can write to NetCDF files and/or STDOUT
1969    o fix re-definition bug in MNC_GRID_INIT_ALL()
1970    o doc/api_reference added
1971      - a framework for building an API Reference Manual using all
1972        the "protex" comments embedded in the code
1973      - see pkg/generic_advdiff, pkg/mnc for examples
1974    o MNC:
1975      - make myThid the last argument for all subroutines
1976      - new default for the grid files: NO halos
1977      - add useMNC and other run-time flags
1978      - separate per-file-group handling of the unlimited dimension
1979      - early initialization of MNC w/ flags read at the eeboot stage
1980        and lookup tables set in initialize_fixed
1981      - write all MNC output to a freshly-created directory
1982    o thermodynamics sea-ice (thsice) is now tested with testreport.
1983    o test exp. advect_cs: use the standard cs32 grid ; update output.
1984    o Added functionality to grdchk:
1985      pick global i,j,k position (or nearest wet) where to perform check.
1986    
1987    checkpoint52l_post
1988    o new land formulation:
1989      a) use ground enthalpy as prognostic variable to ensure exact
1990         energy conservation.
1991      b) account for water temperature and for latent heat of freezing
1992         in all processes (rain, run-off, ground storage)
1993      c) compute surface and ground temperature implicitly.
1994    o aim_v23 modification for new land model:
1995      a) Treat separately land / ocean / sea-ice surface fluxes
1996         to allow implicit computation of land & sea-ice surface temp.
1997      b) add snow precipitation.
1998    checkpoint52l_pre
1999    
2000    o fix problem (when 1 tile is empty) in min/max monitor.
2001    o fix bug in timeAve (u,vZetatave in common block)
2002    o no restoring terms under ice for pkg/seaice
2003    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2004    o bug fix for pkg/seaice pickups
2005    o change MNC call locations and add coordinate attributes
2006    o mask vorticity at the corner ; affects global_ocean.cs output
2007    o fix ini_curvilinear_grid ; test CS experiments with mpi
2008    o aim.5l_cs: modify sea-ice fraction input file ; update output
2009    o exf: Adding simple range check routine for exf fields after read
2010    
2011    checkpoint52k_post
2012    o removed top-level directory "diags"
2013      - we migrated these functions to pkg/timeave a long time ago
2014    o fixed bug introduced in pkg/monitor
2015    o accuracy ctrlprec = 32 insuffient for gradient checks using
2016      averaged fields (I/O via cost_averages)
2017      -> use ctrl.h in active_file*.F to control I/O precision.
2018    o paramter list of CALL ADTHE_MAIN_LOOP
2019    o added initial do_the_model_io to ecco
2020    o set all ...Freq to zero after cost_final
2021      taveFreq, dumpFreq, pChkptFreq
2022    o MAIN and ECCO differentiability restored
2023    
2024    checkpoint52j_post
2025    o fix nchklev in tamc.h for global_ocean...
2026    o Bringing flow and store directives up-to-date
2027    o Really weird thing!
2028      call do_the_model_io from the_main_loop with parameters
2029      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2030      TAF places a faulty re-call of initialise_varia
2031      after cost_final call which should not be there!
2032    checkpoint52j_pre
2033    
2034    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2035      error messages
2036    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2037    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2038      debug output
2039    o modfied mdsio_writefield.F to handle non-global files under exch2
2040    o update AIM Cubed-Sphere exp (aim.5l_cs):
2041      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2042    o update AIM Equatorial Channel exp:
2043      use standard aim_v23 pkg and change the SST fields to be more realistic.
2044    o globalFile now works with exch2
2045    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2046      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2047    o limit timeave output for hi-res integrations
2048    
2049    checkpoint52i_post
2050    o removed CPP_EEOPTIONS.h from verification/*/code
2051    o updated the tiling for global_ocean_pressure
2052    checkpoint52i_pre
2053    
2054    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2055      the old pkg/aim).
2056    
2057    checkpoint52h_pre
2058    o shortened offending lines in exch2_send_rx?.template
2059    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2060    o genmake2: add build & execute test for NetCDF code
2061    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2062      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2063    o added useSingleCPUIO flag to monitor.F and mon_out.F
2064    o added temporary hack for sea-ice dynamics on the cube:
2065      metric terms are ignored and it is assumed that
2066      there is no sea-ice on cube faces 1, 2, 4, and 5.
2067    
2068    checkpoint52f_post
2069    o added exch2 cube routines to pkg/exch2
2070    o modified hs94.cs-32x32x5 to use it
2071    o added new grid files to hs94.cs-32x32x5
2072    checkpoint52f_pre
2073    
2074    checkpoint52e_post
2075    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2076      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2077    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2078      to work with implicit vertical advection and AB ;
2079    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2080    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2081     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2082    checkpoint52e_pre
2083    
2084    o fix bug in impldiff when Nr=1 or Nr=2.
2085    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2086    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2087    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2088      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2089    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2090    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2091    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2092    
2093    checkpoint52d_post
2094    o re-tiled many expts to allow comparison in multi-processor mode
2095      - updated output accordingly
2096      - changed hs94.128x64x5 to use intial T from file rather than use the
2097        random number generator
2098    o add infrastructure in model routines for fizhi and gridalt packages
2099    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2100    o changes to permit hi-res, cubed-sphere, configuration
2101      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2102      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2103      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2104        of surface winds for the cube
2105      (A verification experiment, based on global_ocean.cs32x15, but with
2106       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2107       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2108       complete with example surface forcing files and matlab scripts to look
2109       at the output and compare it with that of global_ocean.cs32x15.)
2110    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2111       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2112       to conform to the common rule.
2113    o check-in the first version of the coupler + interfaces for multi-components
2114       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2115       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2116       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2117       - ocean and atmos. share the same horizontal grid (no interpolation).
2118       - exchanges between component and coupler is done in forward_step
2119    o new verification experiment, cpl_aim+ocn:
2120       coupled ocean - AIM atmosphere on cs32 grid.
2121    
2122    checkpoint52d_pre
2123    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2124    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2125    
2126    checkpoint52c_post
2127    o Fixing OPTIONS files for use of exf:
2128      - ALLOW_ECCO not needed
2129      - ECCO_CPPOPTIONS.h should not be included from
2130        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2131        as has been the case in the past
2132      - All cal/exf related options are currently set in
2133        single header file. Should remain so until we
2134        agree on a consistent new policy.
2135    o Removed all CPP options for cal package.
2136      cal has no more CPP options.
2137    o modified STOREs in GAD_ADVECTION
2138    o corrected key comp. for passkey
2139    
2140    checkpoint52b_post
2141    o new version: "thsice" of thermodynamic sea-ice pkg:
2142     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2143     - modify fluxes but do not change theta directly;
2144     - light cleaning of bulk_force pkg (still needed with thsice).
2145     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2146       + output_thsice.txt to test thsice & bulk_force pkgs.
2147    o put back grid & coriolis monitor output.
2148    checkpoint52b_pre
2149    
2150    o call "do_the_model_io" at the beginning (=> dump initial state)
2151    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2152    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2153      (need info on NUMBER_OF_PTRACERS)
2154    o missing PTRACERS headers in some routines
2155    o default tamc.h in pkg/autodiff supposed to crash
2156      to ensure proper customization
2157    
2158    checkpoint52a_post
2159    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2160      - moved surfaceTendencyTice from pkg/seaice to main code
2161      - subroutine FREEZE_SURFACE now limits only surface temperature
2162        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2163        => new output.txt for global_ocean.cs32x15 & global_with_exf
2164      - keep the old version of FREEZE for backward compatibility;
2165        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2166      - corresponding modifs for TAF directives
2167    o added surface flux output variables to TIMEAVE_STATVARS
2168    o time-averaged output for pkg/ptracers
2169    o fix problem with ECCO-related divided adjoint
2170      snapshot file was missing some ad-variables,
2171      but no warning issued by TAF
2172    
2173    checkpoint52a_pre
2174    o some bug fixes for #undef REAL4_IS_SLOW
2175    
2176    checkpoint52 = ecco_c52_e35
2177    o after testing adjoints of checkpoint51u_post
2178    
2179    checkpoint51u_post
2180    o this is the post-merge tag of the ecco-branch
2181      (needs another clean checkout and re-testing)
2182    o various natl_box_adjoint configs and results
2183      but no input fields
2184    o obcs adjoint not yet merged!
2185    o adding ECCO global 1x1 and 2x2 degree configs
2186    o updated/extended some store directives for seaice
2187    o pkg/ecco now containes ecco-specific part of cost function
2188    o top level routines the_main_loop, forward_step
2189      supersede those in model/src/
2190      previous input data.cost now in data.ecco
2191      (new namelist ecco_cost_nml)
2192    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2193    
2194    checkpoint51t_post
2195    o this is the pre-merge tag of the ecco-branch
2196    
2197    checkpoint51s_post
2198    o cleanup: removed various obsolete #define-s
2199    o pkg/grdchk
2200      - renamed 'ph-grd 3' to 'grad-res'
2201      - merged from ecco-branch
2202        (remaining bug fixes for obcs gradient checks)
2203      - additional high-precision output for testreport
2204        (grep for 'precision_grdchk_result')
2205    
2206    checkpoint51r_post
2207    o cleaned up or removed CPP_OPTIONS.h files
2208    o updated results for some of the tests to reflect the new
2209      optfiles (-ieee: -O0 instead of -O3)
2210    
2211    checkpoint51q_post
2212    o cd_code:
2213      - moved cd_scheme.F -> cd_code_scheme.F
2214      - separate read_checkpoint from cd_code_ini_vars.F
2215      - separated cd_code part from write_checkpoint
2216      - updated AD_SOURCE, generated .flow
2217      - added CD_CODE_VARS.h to the_main_loop
2218      - Moving cd_code specific store dir.s to pkg/cd_code
2219    o ctrl package totally restructured
2220      - pack/unpack now optional and decoupled from
2221        xx_/adxx_ I/O
2222      - ctrl_pack/unpack cleaned
2223        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2224      - confined inclusion of AD_CONFIG.h to where necessary.
2225    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2226    
2227    checkpoint51p_post
2228    o create initial cd_code package
2229      - WARNING: the initialization of fields within packages
2230        is broken because INI_FIELDS (where READ_CHECKPOINT is
2231        called) is called *before* PACKAGES_INIT_VARIABLES.
2232        This seems to be backwards since
2233        1) its important to initially zero the entire field including
2234           the "halo" region
2235        2) zeroing needs to be done *before* reading pickup info
2236           and the pickup call might or might not happen in any
2237           particular run
2238      - this needs an overhaul for R2
2239    o cleanup verification/*/code/GMREDI_OPTIONS.h
2240    o cleanup testreport
2241    
2242    checkpoint51o_post
2243    o bringing AD-related verif's up to date with genmake2
2244      - carbon/
2245      - global_ocean.90x40x15/
2246      - hs.94.1x64x5/
2247      - (front_relax/ )
2248    o (more) consistent directory structure for AD-related verif.'s
2249    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2250    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2251    o bug fix in find_alpha.F for MDJWF:
2252      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2253        change rho -> rho-rhoConst
2254      - replace call find_rho to find_rhonum
2255    o initialisation of rFlx extended to full array (required by TAF)
2256      and shifted to thermodynamics
2257    o removed PTRACERS.h in ptracers routine
2258    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2259    o Correcting initialisations for fVerU, fVerV.
2260    o helping TAF to recognize dependency on kUp for
2261      fVerU, fVerV
2262    o Replacing delZ by delR in pkg/ctrl/
2263    checkpoint51o_pre
2264    
2265    o undid all of cp51 pending some cleanups and discussion
2266    o added the [#include "AD_CONFIG.h"] statement to all files that need
2267       it for adjoint/tl #defines
2268     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2269     o removed tools/genmake since it no longer works
2270    
2271    checkpoint51n_post
2272    o modifications to make FREEZE flux visible to pkg/kpp
2273      - moved surfaceTendencyTice from pkg/seaice to main code
2274      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2275      - subroutine FREEZE now limits only surface temperature
2276        (this means new output.txt for global_ocean.90x40x15,
2277         global_ocean.cs32x15, and global_with_exf)
2278    o added surface flux output variables to TIMEAVE_STATVARS
2279    
2280    checkpoint51n_pre
2281    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2282    o added [#include "AD_CONFIG.h"] to all files that use the following
2283      defines:
2284      - ALLOW_ADJOINT_RUN
2285      - ALLOW_TANGENTLINEAR_RUN
2286      - ALLOW_ECCO_OPTIMIZATION
2287    
2288    checkpoint51m_post
2289    o incorporating changes to get TAMC/TAF working in genmake2
2290      - added new TAMC/TAF targets to the Makefile
2291      - various cleanups related to package handling
2292      - these changes should have no impact on the forward model
2293    
2294    checkpoint51l_post
2295    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2296     - faster algorithm for cal_addtime.F
2297     - higher precision arithmetic, where needed
2298     - pkg/exf *startdate variables changed from calendar date to
2299       model integration time
2300    
2301    checkpoint51l_pre
2302    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2303    o enable to apply restoring on S & T only in a latitude band.
2304    o update output (external_forcing_surf modif. change truncation errors)
2305       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2306    
2307    checkpoint51k_post
2308    o change default to: useNHMTerms=.FALSE.
2309     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2310       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2311     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2312        exp1, ideal_2D_oce
2313     - change data file of oceanic exp (leave the results unchanged for now)
2314       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2315    o set gravitySign automatically according to the vertical coordinate used
2316      (and change sign: back to "logical" value: +1 when R increases downward)
2317    o added an include barrier to the default CPP_OPTIONS.h and
2318      removed the #include "PACKAGES_CONFIG.h" from it
2319    o fix a bug in mom_fluxform (from chk51j_post)
2320    
2321    checkpoint51j_post
2322    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2323    o adjusted some flow directives (dynamics, thermodynamics)
2324    o added cubed-sphere case to test cost function
2325    o heckpoint_lev?_directives.h now include
2326      pkg-specific directives, whenever those are enabled.
2327    o Moving pkg-specific flow directives to corresponding pkg
2328      Moving pkg-specific differentiation list to corresponding pkg
2329      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2330      ---> conventions are
2331           - pkg_ad.flow
2332           - pkg_ad_diff.list
2333           - pkg_ad_check_lev?_dir.h
2334    
2335    checkpoint51i_post
2336    o merge of the branch-genmake2
2337      - knowingly breaks the older genmake
2338      - automatic generation of all ALLOW_${PKG_NAME} defines
2339      - new testreport supersedes older testscript
2340    o large number of package inclusion and header cleanups
2341    checkpoint51i_pre
2342    
2343    o new output for adjoin of global ocean vector invariant
2344    o fix for checkpoint of thermodynamic seaice and bulk_force
2345    o Steph gchem various cleanups
2346    
2347    checkpoint 51h_pre
2348    o fixed some single quotes
2349    o modify gchem pkg to be more versatile
2350    o modifications to clean up dic pkg
2351    o add pkg/cfc
2352    
2353    checkpoint51g_post
2354    o provide links for ARPACK and ADM*TLM
2355    o start removing verification/vero/
2356    o update AD-related stuff
2357      (in particular some IF-statements in model/src/ routines)
2358    o adding to verification/global_ocean.90x40x15/ adjoint of
2359      vector invariant setup
2360    
2361    checkpoint51f_post
2362    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2363    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2364      of tracer Green's fucntions for ocean inversion project.
2365    
2366    checkpoint51f_pre
2367    o Added on-the-fly spatial interpolation capability
2368        "USE_EXF_INTERPOLATION" to pkg/exf.
2369      - This is a temporary Cartesian-grid hack until
2370        the super-duper ESMF coupler becomes available.
2371      - See verification/global_with_exf/README for usage example.
2372      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2373        flags and modified pkg/seaice accordingly.
2374    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2375        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2376        non-local transport term.
2377    
2378    checkpoint51e_post
2379    o pkg/mom_vecinv:
2380      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2381      - add time-ave diagnostic of vorticity advection.
2382    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2383    o atmospheric geopotential: - include water vapor effect;
2384                                - use p^kappa in p* scaling.
2385    o land pkg: read initial state from files.
2386    o AIM : add stratospheric drag in the upper level
2387    
2388    checkpoint51d_post
2389    o change function ILNBLNK (=> last non-blank char.) to return zero
2390      (instead of the string length) when the string. char is empty
2391    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2392    o modif's to restore TAMC compatibility
2393      - avoid "_d" constructs in PARAMETER declarations
2394      - avoid interrupting lines by comment lines
2395    o Use cluster local disks for purely local I/O
2396      vs. globally visible disks needed for ctrl stuff
2397      (merged from ecco-branch)
2398      - new active_file_loc... and mdsio_..._loc routines
2399      - affected packages: autodiff, ctrl, grdchk, mdsio
2400    
2401    checkpoint51c_post
2402    o introducing integer flag debugLevel
2403      - debLevZero: suppress all output
2404      - debLevA: standard
2405      - debLevB: equivalent to current debugMode=.TRUE.
2406    o introducing pathname variable mdsioLocalDir for mdsio
2407      that can be specified at runtime
2408      (relevant for cluster I/O to local disk)
2409    `
2410    >>>checkpoint51b_post
2411    adjoint of ptracers
2412    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2413    o extended state in checkpoint_lev?, etc.
2414    o alternative ctrl/cost with tr1 or ptracer
2415    o new comlev1_bibj_ptracers
2416    o new ptracers.flow
2417    o made ptracers_forcing same as external_forcing_s
2418    o added verification for adjoint with ptracers
2419      - adm. grdchk fail so far
2420      - tlm. grdchk OK
2421      - checked tapelev/comlev recomputations: OK
2422    <<<checkpoint51b_pre
2423    
2424    checkpoint51a_post
2425    o added code for biogeochemistry package
2426      - new pkgs: dic, gchem
2427      - new subroutine in ptracers
2428    o modify code for biogeo packages
2429      - in model/src and pkg/ptracers
2430    
2431    checkpoint51
2432    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2433      - autodiff, ctrl, exf, grdchk, seaice
2434      kept separate packages
2435      - cost, ecco, obcs
2436    o updating verification/internal_wave, verification/lab_sea
2437      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2438    
2439    checkpoint50i_post
2440    o Preparing next differentiable checkpoint and sync
2441      of MAIN vs. ecco-branch
2442      - 1st step: this one is differentiable
2443      - 2nd step: next(! not this) checkpoint will have updated packages
2444                  from ecco-branch)
2445    
2446    checkpoint50h_post
2447    o new package "land": provide surface BC for AIM.
2448    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2449    o AIM: use true log-P extrapolation for near surface temp (= as in
2450        F.Molteni paper) ; update aim.5l_cs output.
2451    o New variable in PARM03 for more flexible pickups
2452    o somewhat cleaned package initialisation sequence for
2453      ctrl/ cost/ ecco/ in packages_... routines
2454    
2455    checkpoint50g_post
2456    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2457      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2458      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2459        made the default because of faster convergence than ADI
2460    
2461    checkpoint50f_post
2462    o exf totally restructured
2463      - replaced all exf_set_ routines by one generic exf_set_gen.F
2464        and made sure it's still differentiable
2465      - split exf_getffields.F into new exf_bulkformulae.F
2466      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2467      - updated adjoint/makefile and relevant verif. accordingly
2468    
2469    checkpoint50f_pre
2470     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2471          + change Evap over land. (update aim.5l_cs output)
2472     o added missing .cvsignores and made uniform across expts
2473     o changed configuration of tidal_basin_2d expt
2474     o added pkg/debug functions for tracing code in fatal crashes
2475     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2476     o new fn in pkg/monitor to stop model if solution grows too big
2477     o removed lots of single quotes from comments
2478    
2479    checkpoint50e_post
2480    o make KPP work with PTRACERS
2481     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2482       nearly a copy of kpp_transport_s
2483     - there is no analogue to SurfaceTendencyS, so I have to use
2484       gPtr(of the surface layer) instead
2485    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2486    checkpoint50e_pre
2487    
2488    checkpoint50d_post
2489    o change kpp output from multiple-record state files to single-record state
2490      files analogous to write_state.F
2491    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2492      analogous to the cg2d-related output.
2493    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2494      so that writing to internal file fn (with length 512) fails.
2495    checkpoint50d_pre
2496    
2497    checkpoint50c_post
2498    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2499    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2500    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2501    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2502    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2503    
2504    checkpoint50c_pre
2505    Merging from release1_p13:
2506    o bug fix for pkg/seaice dynamic solver
2507    o Added SEAICE_initialHEFF to pkg/seaice
2508    
2509    checkpoint50b_post
2510    o store u*,v* in gU,V instead of in guNm1,gvNm1
2511    o in order to put the momForcing out of the Adams-Bashforth:
2512      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2513      to timestep.F
2514    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2515    o re-generate output for highly sensitive test-exp:
2516       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2517    
2518    checkpoint50b_pre
2519    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2520    o corrected CPP option mismatch in exf_Bulk... functions for case
2521      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2522    
2523    checkpoint50a_post
2524    o Bug fix for merging between c50 and KPP.
2525      ikey was passed from thermodynamics to kpp_calc via
2526      common block rather than being recomputed in kpp_calc,
2527      in contradiction with new key itdkey.
2528      New key ikppkey created, and tamc.h headers updated.
2529    
2530    checkpoint50
2531    - 2nd step of merge with ecco-branch:
2532      merge changes in ecco-branch back into main trunk
2533    - bug fix in find_alpha
2534    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2535    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2536    - merged some sliced AD support routines
2537    
2538    checkpoint49
2539    merged from ecco-branch:
2540    o exf:
2541      - Enable initialisation of forcing fields to constant
2542        (runtime) values.
2543      - in exf_getffields.F
2544        Reduce i-/j-loop to interior domain, discarding overlaps.
2545        That also fixes wrong TAF-key computations for key_1, key_2
2546        with bulf formulae.
2547      - exf_init.F modify #ifdef for exf_init_evap
2548      - exf_getffieldrec.F, ctrl_getrec.F
2549        The following INT-usages are not safe:
2550          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2551          fldcount = int(fldsecs/fldperiod) + 1
2552        and were modified.
2553    o autodiff: checkpoint_lev...
2554      - updated storing for bulk formulae (some arrays were missing)
2555      - added state for seaice package
2556      - synchronized with main branch
2557    o DIVA:
2558      Modif.s in
2559      - the_main_loop.F
2560      - the_model_main.F
2561      and added cost_final_restore.F cost_final_store.F
2562      o With these changes, it is possible to fully separate
2563        the first forward run to compute the cost function (mdthe_main_loop)
2564        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2565        into separate model executions.
2566        This enables better tuning of DIVA to given queue sizes.
2567      o Loss of cost function value in consecutive DIVA runs is
2568        fixed by storing to 'costfinal' file.
2569      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2570        beginning/end of adjoint integration is accounted for.
2571      The current changes apply to TAF-1.4.26.
2572      TAF has one remaining bug, requiring one manual change
2573      (see MITgcm manual).
2574    o cal: synchronized between MAIN and ecco-branch
2575    
2576    checkpoint48i_post
2577    o Changes to restore differentiability of code w.r.t. previous tag
2578      (mostly adding new routines to make list and replacing
2579      pressure by totPhiHyd).
2580    o Updated and merged grdchk package
2581      - has both ADM and TLM checks
2582      - works for single- and multi-proc.
2583      - output cleaned
2584      - worked successfully for parallel DIVA
2585    o genmake:
2586      - Adding -platform=SP4
2587      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2588    o Modif. for DIVA:
2589      ctrl_unpack should not be called in intermediate DIVA interval.
2590      (similar thing would apply for active files such as
2591      tbar, sbar, psbar, which should not be reinitialised;
2592      only relevant for ecco-branch)
2593    
2594    checkpoint48h_post
2595    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2596    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2597    o Added SEAICE_initialHEFF to pkg/seaice
2598    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2599    
2600    checkpoint48g_post
2601    --- EOS:
2602    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2603      store total Potential in totPhyHyd for diagnostics & EOS.
2604    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2605    --- Pressure/geopotential gradient:
2606    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2607    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2608      ( changes results of global_ocean_pressure )
2609    o NLFS + z-coord.: add eta*Rho' contribution.
2610    o accurate phiHyd when using interface-W at the middle between 2 centers
2611     ( changes results of ideal_2D_oce )
2612    o includes r* 2nd term in potential gradient.
2613    
2614    checkpoint48f_post
2615    Merging from release1_p12:
2616    o Modifications for using pkg/exf with pkg/seaice
2617      - improved description of the various forcing configurations
2618      - added basic radiation bulk formulae to pkg/exf
2619      - units/sign fix for evap computation in exf_getffields.F
2620      - updated verification/global_with_exf/results/output.txt
2621    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2622      (SBO) core products, including oceanic mass, center-of-mass,
2623      angular, and bottom pressure (see pkg/sbo/README.sbo).
2624    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2625      to avoid negative values in shallow regions.
2626      - updated verification/natl_box/results/output.txt
2627      - updated verification/lab_sea/results/output.txt
2628    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2629    o Added useSingleCpuIO option (see PARAMS.h).
2630    o Updated useSingleCpuIO option in mdsio_writefield.F to
2631      work with multi-field files, e.g., for single-file pickup.
2632    o pkg/seaice:
2633      - bug fix in growth.F: QNET for no shortwave case
2634      - added HeffFile for specifying initial sea-ice thickness
2635      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2636    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2637      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2638    o pkg/seaice:
2639      - adjoint-friendly modifications
2640      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2641    
2642    checkpoint48e_post
2643    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2644    o dynamics: change definition of computational domain & adapt mom_fluxform
2645      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2646    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2647        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2648        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2649        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2650        inverted_barometer solid-body.cs-32x32x1
2651      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2652    
2653    checkpoint48d_post
2654    o in preparation for r*:
2655     a) use pre-computed gradient of hydrostatic potential:
2656        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2657     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2658        => affects results of glob_oce_pressure (different truncation error)  
2659      update output.txt of ideal_2D_oce & global_ocean_pressure
2660    
2661    checkpoint48d_pre
2662    o in preparation for r*:
2663      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2664      pass the 2 comp. of the grad. as arguments to momentum S/R.
2665      but for the moment, only used if it does not change the results.
2666    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2667    
2668    checkpoint48c_post
2669    Modifications in treatment of initial flux forcing controls
2670    to avoid extra storing of flux fields.
2671    
2672    checkpoint48c_pre
2673    o Added tidal_basin_2d experiment (currently 1D!)
2674    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2675    
2676    checkpoint48b_post
2677    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2678     (modification to pressure gradient not yet implemented)
2679    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2680      (for U & V) that are used for vertical advection of momentum.
2681    
2682    checkpoint48a_post
2683    o In preparation for r*, use temp. array to compute vertical transport
2684       in flux-form momentum pkg. => change results of few test-exp.
2685      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2686                        lab_sea, natl_box & plume_on_slope
2687    
2688    checkpoint48
2689    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2690    
2691    checkpoint47j_post
2692    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2693    o moved adexch from forward_step to addummy_in_stepping
2694    o added exch in ctrl_map_...
2695    o aveFreq.=0. at end of cost_final to avoid overwrite in
2696      reverse checkpointing loop
2697    o Yet more changes in gmredi:
2698      * adgmredi_calc_tensor
2699        avoiding all recomputation of gmredi_slope_limit
2700      * adgmredi_x/y/rtransport
2701        added flag for excessive storing to avoid recomp. of
2702        u/v/rtans, dTdx/y/z
2703        -> this is not really necessary and very memory-consuming
2704      * adgmredi_slope_psi:
2705        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
2706      * gmredi_slope_limit
2707        re-activated full calculation of taperfct for case 'ac02'
2708    o updating verification/ adjoints of carbon, global_ocean.90x40x15
2709    
2710    checkpoint47i_post
2711    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
2712    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
2713      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
2714    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
2715    o gmredi: fix few bugs.
2716    
2717    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
2718    This will be a good checkpoint to plug into the ecco-branch.
2719    o few modif.'s to get latest version adjointed
2720      (mainly kick out code in ini_linear_phisurf)
2721    o modif's to run adjoint with exactConserv
2722    o case GM_BOLUS_ADVEC should be cleaned
2723      S/R gmredi_slope_psi should be cleaned
2724    o verification/carbon now has exactConserv=.TRUE.
2725    
2726    checkpoint47g_post
2727    o time-average AIM output: becomes independent from statvars time-average
2728      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
2729    o After TAF bug fix:
2730      Tested adjoint of gmredi package.
2731      Tests were done with checkpoint47 rather than with latest
2732      checkpoint47f_post since the latter is broken for the adjoint
2733      verification/carbon/ contains both ADM and TLM gradient checks.
2734    Here they are, before they get changed/lost/stolen.
2735    Mostly modif.'s to fix numerical sensitivities.
2736    Gradient checks OK for
2737    - GM_taper_scheme:
2738      * clipping
2739      * ac02
2740      * linear
2741      * glw91
2742      * dm95
2743      * ldd97
2744    - GMREDI_OPTIONS:
2745      * GM_VISBECK_VARIABLE_K
2746      * GM_NON_UNITY_DIAGONAL
2747      * GM_EXTRA_DIAGONAL
2748      * GM_BOLUS_ADVEC
2749    in conjunction with data.gmredi parameters to be checked in
2750    in a few minutes under verification/carbon/code/
2751    
2752    checkpoint47f_post
2753    Merging from release1_p10:
2754    o modifications for using pkg/exf with pkg/seaice
2755      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
2756        and SEAICE_EXTERNAL_FLUXES
2757      - pkg/exf CPP options EXF_READ_EVAP and
2758        EXF_NO_BULK_COMPUTATIONS
2759      - usage examples are Experiments 8 and 9 in
2760        verification/lab_sea/README
2761      - verification/lab_sea default experiment now uses
2762        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
2763    
2764    checkpoint47e_post
2765    o created a tag prior to creating a branch
2766    
2767    checkpoint47d_post
2768    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
2769      at the bottom boundary had an erroneous half slip boundary condition
2770    o added bottom drag and no slip boundary condition capabilities to
2771      oceanic pressure coordinates code
2772    o added new verification experiment global_ocean_pressure, this experiment is
2773      also described in the tutorial section of the manual
2774    checkpoint47d_pre
2775    
2776    checkpoint47c_post
2777    o Added a verification experiment for a global cubed-sphere ocean run
2778      -  verification/global_ocean.cubed32x32x30
2779      -  uses pkg/therm_seaice and pkg/bulk_forcing
2780    
2781    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
2782    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
2783      when using P-coordinate; only implemented for atmospheric config.
2784    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
2785      NOTES: requires option NONLIN_FRSURF to be "#define".
2786    o update advect_xz/results/output.txt (left from checkpoint44g_post)
2787    
2788    checkpoint47b_post
2789    Merging from release1_p9:
2790    o pkg/seaice
2791      - removed GOTO's and added taf directives
2792      - double precision constants to reduce the g77 (Linux)
2793        to F77 (SGI) differences reported in release1_p8
2794    o tools/genmake
2795      - added SGI options
2796    o verification/testscript
2797      - updated to that of checkpoint47a_post
2798    o verification/global_ocean.90x40x15/input/eedata
2799      - modified for SGI f77 compatibility
2800    o verification/lab_sea
2801      - added description of sea-ice model
2802      - added missing matlab routines
2803      - added test of thermodynamics parallelization
2804    
2805    checkpoint47a_post
2806    o new pkg: aim_v23
2807     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
2808       for now, keep the same surface forcing as before.
2809     - Part-Cell implemented into AIM; check that Heat & Water are conserved
2810     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
2811     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
2812    o add diagnostic of surface correction term in monitor output
2813    
2814    o bulk_force and therm_seaice
2815    - Two packages:  bulk_force (Bulk forcing)
2816      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
2817    - Earlier integration from Stephaine Dutkiewicz
2818      and Patrick Heimbach.
2819    - Two ifdef statements for compile time,
2820       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
2821    
2822    checkpoint47
2823    differentiable version of checkpoint46n_post
2824    o bug fix in quasihydrostaticterms
2825    o * "clean" adjoint code (in terms of extensive recomputations)
2826        can now be obtained for all GMREDI options (i.e. for
2827        - GM_VISBECK_VARIABLE_K
2828        - GM_NON_UNITY_DIAGONAL
2829        - GM_EXTRA_DIAGONAL
2830        - GM_BOLUS_ADVEC )
2831      * However, wrong gradient check problem remains unsolved.
2832      * New CPP options have been introduced for different
2833        tapering schemes
2834    o external_fields_load now part of differentiation list
2835    o pressure needs multiple storing;
2836      would be nice to have store_pressure at beginning or
2837      end of forward_step, e.g. by having phiHyd global (5-dim.)
2838      (NB: pressure is needed for certain cases in find_rho,
2839      which is also invoked through convective_adjustment).
2840    o recomputations in find_rho for cases
2841     'JMD95'/'UNESCO' or 'MDJWF' are OK.
2842    o #define ATMOSPHERIC_LOADING should be differentiable
2843    o ini_forcing shifted to begining of initialise_varia
2844    o Incorporating QNVS line search routines into MITgcm
2845      (this is separate code, and therefore not under pkg)
2846      lsopt/, optim/
2847    o Updated verification/carbon/
2848      - #define GM_VISBECK_VARIABLE_K
2849      - GM_taper_scheme    = 'ldd97'    
2850    
2851    checkpoint46n_post
2852    Merging from release1_p8:
2853    o verification/natl_box:
2854      updating new external_fields_load routine
2855    o New package: pkg/seaice
2856      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
2857      The sea-ice code is based on Hibler (1979-1980).
2858      Two sea-ice dynamic solvers, ADI and LSR, are included.
2859      In addition to computing prognostic sea-ice variables and diagnosing
2860      the forcing/external data fields that drive the ocean model,
2861      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
2862      The implied surface heat flux is then stored in variable
2863      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
2864      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
2865      non-local transport term.  Because this call precedes model
2866      thermodynamics, temperature under sea-ice may not be "exactly" at
2867      the freezing point by the time theta is dumped or time-averaged.
2868      N.B.: fairly large differences in accuracy occur across
2869            different platforms/compilers; comparison between
2870            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
2871            generated output gives:
2872       T           S           U           V
2873      C D M    c        m  s        m  s        m  s        m  s
2874      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
2875      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
2876      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
2877    
2878      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
2879    o GAD:
2880      - generated new common blocks to account for call of
2881        same gad routines with differing traceridentities
2882        (needed to modify tracerIdentity indices in GAD.h)
2883      - generated separate common blocks for case useCubedSphereExchange
2884        (Department of Futurology)
2885      - parameter lists to gmredi_?transport: added tracerIdentity
2886      - added new key indices to tamc.h
2887    o external_fields_load:
2888      - added this routine to TAF list
2889      - needed to make some common blocks global and additional storing
2890        along the same lines as exf package (checkpoint_lev?_directives.h)
2891    o exf:
2892      updated external forcing package
2893      - bug fixes carried over from ecco-branch
2894        (missing OBCS_OPTIONS.h in two routines)
2895      - enable easy to use "no forcing".
2896      - added exf I/O for atmospheric loading
2897      - added exf I/O for runoff data
2898      - transfered scaling between exf <-> MITgcm to exf namelist
2899    o Adding new verification experiment global_with_exf.
2900      This verification experiment is almost identical to the
2901      global_ocean.90x40x15 experiment, except that it uses
2902      the exf (and cal) package instead of the
2903      external_fields_load routine (cf README file).
2904    
2905    checkpoint46m_post
2906    o modified testscript to return -- when there are no lines of "%MON" output
2907    o added new flag "quasiHydrostatic" for QH mode
2908      and new routine quasihydrostaticterms()
2909    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
2910      New routine: mom_u_coriolis_nh()
2911    o fixed sign of non-hydrostatic metric terms in u and v equations.
2912      Depend on correct sign of gravitySign.
2913    o added work.pc* to .cvsignore in aim directories using ifc
2914    o introduced flag for controllin non-hydrostatic metric terms
2915    o removed gravitySign from PARM04
2916    o switched to g77/ifc from pgf77 in aim experiments
2917    
2918    checkpoint46l_post
2919    o made convective adjustment work with pressure coordinates:
2920     - changed the direction of k-loop in convective_adjustment.F for the
2921       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
2922     - adjusted the reference pressure k-index in convective_adjustment.F
2923     - adjusted the convection condition in convect.F (in analogy to
2924       calc_ivdc.F)
2925     - convective_adjustment no longer computes anything on the halos
2926     - removed the warnings about negative salinity from find_rho.F and
2927       find_alpha.F; instead the new routine look_for_neg_salinity, called
2928       at the beginning of find_rho, find_alpha, and find_beta, does a
2929       check of the entire slice, if CPP-option
2930       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
2931    checkpoint46l_pre
2932    
2933    checkpoint46k_post
2934    o fixed the verification/global_ocean.90x40x15 experiment:
2935     - new bathymetry (the world according to A., JMC, and M.)
2936     - new initial fields and forcing fields (*.bin files)
2937     - new POLY3.COEFFS (for the next release one should switch to a full
2938       equation of state: JMD95P or MDJWF)
2939     - fixed several errors and redundancies in the data file
2940     - experiment uses looped cells
2941     - added matlab directory with diagnostic scripts for plotting of output
2942    
2943    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
2944     - read AIM physics parameters from a file (data.aimphys)
2945     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
2946    
2947    checkpoint46j_post
2948    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
2949    o move wVel computation at the end of the time step, in S/R integr_continuity
2950    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
2951    o update timeave pkg for wVel diagnostic.
2952    checkpoint46j_pre
2953    
2954    checkpoint46i_post
2955    o Clean up AIM package (and keep the results unchanged):
2956      include CPP_OPTION and use IMPLICT NONE in all routines ;
2957      declare all the variables _RL ; use _d 0 for all numerical constants.
2958      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
2959    
2960    checkpoint46h_post
2961    o cleaned up the use of rhoNil and rhoConst.
2962      - rhoNil should only appear in the LINEAR equation of state, everywhere
2963        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
2964        and the dynamical equations are all divided by rhoConst
2965    o introduced new parameter rhoConstFresh, a reference density of fresh
2966      water, to remove the fresh water flux's dependence on rhoNil. The default
2967      value is 999.8 kg/m^3
2968    o cleanup up external_forcing.F and external_forcing_surf.F
2969      - can now be used by both OCEANIC and OCEANICP
2970    checkpoint46h_pre
2971    
2972     Added code to convert surface volume flux (fresh water) into
2973     a mass flux when using P coordinates in the ocean (OCEANICP).
2974     Note: It assumes you have set rho0=rhoConst=density of fresh water.
2975    
2976    checkpoint46g_post
2977    o Include a new diagnostic variable phiHydLow for the ocean model
2978      - in z-coordinates, it is the bottom pressure anomaly
2979      - in p-coordinates, it is the sea surface elevation
2980      - in both cases, these variable have global drift, reflecting the mass
2981        drift in z-coordinates and the volume drift in p-coordinates
2982      - included time averaging for phiHydLow, be aware of the drift!
2983    o depth-dependent computation of Bo_surf for pressure coordinates
2984      in the ocean (buoyancyRelation='OCEANICP')
2985      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
2986        Theta, Salinity, and Pressure in the parameter list. This routine is
2987        presently contained in find_rho.F. This routine does not give the
2988        correct density for 'POLY3', which would be a z-dependent reference
2989        density.
2990    o cleaned up find_rho
2991      - removed obsolete 'eqn' from the parameter list.
2992    o added two new verification experiments: gop and goz
2993      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
2994    checkpoint46g_pre
2995    
2996    checkpoint46f_post
2997    o Enable tangent linear (forward mode) gradient checks:
2998      - extended active file handling to g_... files
2999      - added TANGENT_SIMULATION to theSimulationMode
3000      - extended grdchk package accordingly
3001    o added tangent linear setup in verification/carbon/code_ftl
3002    o added adjoint setup in verification/front_relax/code_ad
3003    
3004    checkpoint46e_post
3005    o Added new equation of state -> MDJWF
3006      - EOS of McDougall et al., 2002, JAOT, submitted
3007      - caveat: the equation of state is only valid for a smaller (more
3008        realistic?) range of values than JMD95P/Z and UNESCO
3009      - added masks to the calculation of pressure in store_pressure
3010      - added more check values for density in check_eos (ini_eos.F), some of
3011        the old check values are out of the range of the MDJWF-eos, so don't
3012        expect perfect matches for those
3013    checkpoint46e_pre
3014    
3015    checkpoint46d_post
3016    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3017      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3018      case of pressure coordinates. eosType='JMD95Z' in
3019      combination with buoyancyRelation='OCEANICP' now causes an error.
3020    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3021      in find_alpha/beta.
3022    checkpoint46d_pre
3023    
3024    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3025      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3026    
3027    checkpoint46c_post
3028    o Changes necessary for ocean in p-coordinates
3029     -  Added new buoyancy relation = 'OCEANICP'
3030     -  Added new parameters = gravitySign (this used to be contained inside
3031        the factor dRdZ which I added when we first switched to R coordinates).
3032     X GM/Redi is not compatible (yet)
3033     X bottom drag and no-slip need to be debugged.
3034    checkpoint46c_pre
3035    
3036    checkpoint46b_post
3037    o Added new equation of state -> JMD95Z and JMD95P
3038      - EOS of Jackett and McDougall, 1995, JAOT
3039      - moved all EOS parameters into EOS.h
3040      - new routines ini_eos.F, store_pressure.F
3041    o Added UNESCO EOS, but not recommended because it requires
3042      in-situ temperature (see JMD95)
3043    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3044      unesco.f to be used with POLY3
3045    checkpoint46b_pre
3046    
3047    checkpoint46a_post
3048    o Added (atmospheric) pressure loading
3049      - new field in FFIELDS.h, etc...
3050      - new cpp flag ATMOSPHERIC_LOADING
3051    o Changed hFacC to _hFacC in calc_phi_hyd.F
3052    o Added SHORTWAVE_HEATING to some files for consistency
3053    checkpoint46a_pre
3054    
3055    checkpoint46
3056    further merges from release1_p5
3057    o new ctrl package
3058      - adopted from ECCO environment to enable optimization
3059      - added Eliassen Palm fluxes to controls
3060    o added Eliassen Palm flux controls to gradient check package
3061    o cost package
3062      - Compatible with new ctrl package
3063      - added Eliassen Palm cost hooks
3064      - modif's of existing cost functions
3065    o Adjoint-related bug fixes in kpp:
3066      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3067      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3068    o autodiff package
3069      - flow directives:
3070        + new for S/R do_the_model_io
3071        + enhanced for S/R checkpoint
3072        + new gmredi.flow
3073      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3074        disable adcommon.h/g_common.h by default.
3075      - fixed problem for adjoint of global_max
3076    o modified verification/carbon/
3077    o New setup for adjoint of global_ocean
3078    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3079    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3080    o incorporated hooks for sponge layer code (external_forcing.F)
3081    
3082    checkpoint45d_post
3083    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3084    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
3085      (affects plume_on_slope "cg2d" output)
3086    o add new parameter deltaTfreesurf for free-surface time stepping
3087    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3088    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3089    o change phiMin in exp1 (to agree with documentation)
3090    o add new flags:
3091     - T,S forcing inside/outside Adams-Bashforth
3092     - turn off temp,salt advection and/or forcing
3093     - for each tracer, define internal flag for multiDimAdvection & A-B
3094    o monitor: change definition of KE to check conservation of Energy
3095    
3096  checkpoint45c_post  checkpoint45c_post
3097  o Removed f90 comments ("!")  o Removed f90 comments ("!")
3098  o Modified initialisations to enable exf package for MITgcm  o Modified initialisations to enable exf package for MITgcm

Legend:
Removed from v.1.73  
changed lines
  Added in v.1.872

  ViewVC Help
Powered by ViewVC 1.1.22