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revision 1.589 by jmc, Thu Dec 8 22:25:07 2005 UTC revision 1.870 by gforget, Fri Sep 7 22:42:32 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/ecco: allow user defined cost function contributions
8    o testreport:
9      Allow to choose (per experiment) the list of tested output variables
10       and the main variable (used to issue a pass/FAIL ) ;
11      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
12      - default is unchange: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
13      Also modify printing of summary:
14       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
15       b) echo the list of tested variables in the individual summary.txt of
16          each experiment.
17    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
18      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
19      (but still depend on the tile decompostion of the domain).
20    o pkg/seaice: change a discretization detail to make the B-grid code
21      "more symmetric". This change is likely to remove all "ridges/leads" that
22      where quasi-aligned with the grid in B-grid solutions. It may also be
23      the solution to the stress coupling issues with the B-grid.
24    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
25      remove .cvsignore from input dir. (since testreport no longer run here).
26    o pkg/thsice:
27     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
28     - fix reshaping of sea-ice just after advection:
29       melt all the ice only if ice-volume is too small.
30     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
31       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
32     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
33    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
34      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
35    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
36      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
37      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
38      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
39      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
40      -> update output.txt
41    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
42     this affects truncation error: -> update output.txt of exp:
43      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
44      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
45    
46    checkpoint59f
47    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
48    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
49      a bounded range (in forward mode)
50    o pkg/ecco, ctrl, autodiff and mom_common:
51     internal parameter controls, completements of implementations
52    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
53    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
54      (not seem any difference in testing results).
55    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
56       at face corners.
57    o pkg/generic_advdiff:
58     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
59      loop range indices for computing vertical advection tendency
60      and do the calculation in the interior only (no overlap) ;
61      for now, only implemented for SOM advection (to save CPU time).
62     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
63    o exch2 adjoint
64      First set of changes:
65      - add exch2 hand-written adjoint templates
66      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
67        This will require cleanup in pkg/autodiff/*.F
68        (changed routines currently kept separate in verif. code/)
69      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
70        that used to hide exch2 or cubed-sphere specific code
71        (commented via 'cph-exch2')
72    o pkg/seaice
73      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
74    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
75       output of global_ocean.cs32x15.thsice .
76    
77    checkpoint59e
78    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
79      for B-grid vector (not yet tested) and C-grid vector (<- only used
80      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
81    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
82      (#ifdef ALLOW_SALT_PLUME)
83    o gather_2d/scatter_2d: removed halo regions
84    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
85      scheme and the corresponding test case (under front_relax dir). For now,
86      only available with Skew-flux form and not yet tested in realistic set-up.
87      adjoint: store directives updated, but gradient checks deteriorated,
88      so maybe GM/Redi adjoint is now broken.
89    o seaice adjoint
90      * add AREA, HEFF, HSNOW as control variable
91        (should not change lab_sea results)
92      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
93    o pkg/seaice:
94      * added computation of saltFlux in seaice_growth;
95        For time being, sea ice salinity is assumed constant
96        contribution of snow flooding to freshening of sea ice is neglected.
97        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
98        defaults to 0.0 in order to maintain backward compatibility.
99        Typical values for SEAICE_salinity are 4 to 10 g/kg.
100      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
101      * added SEAICE_availHeatFrac, which specifies fraction of surface level
102        heat content used to melt or grow ice
103      * commented out cap of HICE: it helps keep ice thinner
104      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
105      * applied OBCS T/S mask to HEFFM sea ice mask
106    
107    checkpoint59d
108    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
109     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
110     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
111    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
112     and change default value of parameter "GM_Small_Number";
113     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
114       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
115       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
116    o pkg/ecco: cost function when applying pkg/smooth to controls
117    o pkg/ctrl: add forcingPrecond run time parameter
118    o pkg/seaice:
119     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
120     - fix bug in metric terms of u-equation in LSR solver (implicit part),
121       changes verification/lab_sea
122     - rearrange implicit part of u-equation in LSR solver to make it easier to
123       read, understand, and debug. This causes changes at the truncation level.
124     - fix (serious) bug in the boundary conditions (sign error in the implicit
125       part) of the LSR solver. Changes all LSR results.
126     - fixed problem with HSNOW initialization to avoid thick snow when AREA
127       is initilized with small values - does not change lab_sea results.
128     - added HsnowFile initialization capability
129    o pkg/smooth: addition to model/src and pkg/ctrl so allow
130     initialization of pkg/smooth and application to control vector
131    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
132    o dependencies: pkg/profiles requires pkg/cal
133    o pkg/profiles:
134     - added option ALLOW_PROFILES_GENERICGRID
135         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
136         that interpolation information (grid points and coefficients) is provided
137         within the netcdf input files.
138         -> sample matlab scripts can be found in MITgcm_contrib/gael
139         that allow you to prepare netcdf input files.
140     - also modified: cleaner include statements, cleaner error print statements,
141       cleaner stops when error, and more tests of the netcdf input files consistency.
142    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
143    o pkg/seaice:
144     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
145       requires a new routine: seaice_diagnostics_fill.F
146     - make sure that seaice does not move if not forced (pressure replacement
147       method, Hibler and Ip, 1995), changes results
148     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
149     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
150       It is turned off by default (=-1.), because it changes the results.
151     - make it possible to read AREA from a file, too.
152    
153    checkpoint59c
154    o add S/R and diagnostics for oceanic mixed-layer depth
155    o move GMRedi call after all vertical mixing schemes (including KPP)
156    o pkg/thsice:
157     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
158      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
159    o pkg/obcs:
160     - bug fix for balance code
161    o pkg/seaice:
162      - allow values of SEAICE_elasticParm > 1
163      - add new parameter SEAICE_evpTauRelax as an alternative
164        to SEAICE_elasticParm
165      - make lsr boundary conditions free slip (by default), changes result
166      - add code for no slip boundary conditions for lsr
167      - set minimum of zeta to zero (and not 4e8) (changes results)
168      - add a cap on AREA after advecting AREA if seaice_growth is not called
169    o change calculation of Visbeck K:
170      - no longer depend on tapering scheme; instead, compute slope (limited
171        by GM_maxSlope). this is equivalent to what was comuted before with
172        clipping or linear tappering.
173      - fix vertical averaging (wrong by 1/2 level)
174      - leave the old version (but will not be maintained) within
175        #ifdef OLD_VISBECK_CALC / #endif
176      - update output of exp. ideal_2D_oce
177    o change error catch in calc_r_star to improve vectorization
178    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
179      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
180    o adjoint:
181      Re-organized adjoint checkpointing according to Matt Mazloff
182      (but with modifs/completions/cleanups)
183      Storing is now bundled into large arrays to optimized I/O
184      (and second step in cleanup of the_main_loop)
185    
186    checkpoint59b
187    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
188      - export/import (between ocean & coupler) fields needed for ocean DIC.
189    o pkg/seaice:
190      - get rid of three more exchanges seaice_calc_viscosities (required
191        different loop boundaries in seaice_lsr and seaice_ocean_stress)
192      - bug fix in seaice_ocean_stress (update of lab_sea required)
193      - reduce loop boundaries to necessary minimum also in seaice_evp
194      - go back to the old way of computing deltaC/Z as the adjoint likes that
195        better
196    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
197      passive tracer to an Age Tracer) + update output.txt
198    o pkg/exf:
199      - implement A-grid / C-grid selection for wind-stress input files.
200      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
201      for now, in exf_bulk_largeyeager04.F only :
202      - change implementation for case where windspeed + 2. components wind-stress
203        are read-in. AND use rhoConstFresh to convert evap.
204    o pkg/seaice:
205      - use correct EXCH_UV for wind-forcing (on A-grid).
206      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
207        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
208    o pkg/exf:
209      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
210      EXF_INTERPOLATION:
211      - merge global_with_exf/code version of exf_interp_read.F
212        to the main code ;
213      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
214        reading the file ; Important: This options needs to be defined to recover
215        previous code.
216        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
217      - no longer loose real*8 precision along the way when using exf_iprec=64.
218    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
219      - change discretisation of evp-solver in order to avoid another exchange
220        (changes lab_sea) and clean up a little
221      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
222        help the adjoint (this also changes the results slightly)
223      - add a few "_d 0" where they had been missing in seaice_evp.F
224      - cleaning up: remove unused seaice_calc_rhs.F
225    o pkg/exf: some cleaning-up:
226      - change various "constants" into runtime parameters
227      - cleaned-up Large&Yeager04 routine which should eventually
228        replace exf_bulkformulae.F (changed names of S/R and CPP)
229        and merged various ALLOW_ATM_WIND options
230     only used with thsice pkg (in thsice_get_exf.F):
231      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
232        which are used when useStabilityFct_overIce=TRUE (= the default)
233      - change default values of ice & snow emissivity and scale downward LW
234        by ice & snow emissivity.
235    o pkg/thsice:
236     fix few little problems, in thsice_calc_thickn.F:
237      - growth vertically (and not laterally) if iceFrac == iceMaskMax
238      - melt only laterally if hIce < hThinIce (as the comments say)
239      and in thsice_extend.F:
240      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
241      - start to form ice as soon as the minimum ice-volume is reachable.
242     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
243      and cpl_aim+ocn
244    o pkg/kpp
245     - move computation of surface related input fields to KPP into a new
246       subroutine kpp_forcing_surf.F
247     - remove wrong (within bi,bj loops) EXCH calls.
248     - little cleaning (add argument myThid in last position, cvs header ...)
249     - for now, fix conservation problem by exchanging KPPviscAz (may not
250       be the best fix)
251    o pkg/seaice
252     - check for inconsistent evp parameter/cpp-flag combination
253     - remove leftover errIO flat for obsolete name list error handling
254    o OpenAD
255     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
256    
257    checkpoint59a
258    o pkg/seaice: some parameter clarifications and a little bit of clean up
259    o pkg/thsice: rename run-time parameters:
260       himin       -> hIceMin
261       himin0      -> hThinIce
262       hihig       -> hThickIce
263       i0          -> i0swFrac
264       transCoef   -> bMeltCoef
265       frac_energy -> fracMelting
266      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
267       with default values (for now) that do not change the results.
268      remove old version of thsice vars advection in pkg/seaice.
269    o in FFIELDS.h:
270      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
271      - make pLoad & sIceLoad always available (but still only used if
272         ATMOSPHERIC_LOADING is #define).
273    o pkg/kpp: replaced _KPP_RL with _RL
274    o bug fixes for vertical diffusivity computations when both KPP and
275        3D diffusivity arrays are used.
276    o pkg/seaice: fix bug in evp solver, while doing that
277      - change (improve?) discretization of stress computations for both
278        cgrid-lsr and evp solver
279      - add a new routine to compute strain rates
280      - the above changes lab_sea results
281      - add no slip conditions for evp solver (off by default), lsr-version
282        may follow
283      - fix exchange for shear at Z-points (does not change lab_sea)
284      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
285        (to force the user to pick a time step since there is not "safe" way
286        of choosing it)
287      - add principal stress diagnostics
288      - rearrange fields for evp a little to avoid having to call a: too many
289        exchanges and b: exchanges for stress trensor components which we do
290        not have.
291      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
292        of evp, complete rewrite for lsr case (latter is does not yet work
293        in all cases)
294    o pkg/kpp: add code to have mixing in shelf ice caverns
295      - add myThid to all kpp routines (long overdue)
296    
297    checkpoint59
298    o pkg/exf:
299      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
300        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
301      - move exf header files from lower_case.h to UPPER_CASE.h ;
302        add missing cvs Header & Name
303      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
304      - add namelist param. selectStressGridPosition, exf_monFreq
305      - retire many _CLIM routines, and remove data.exf_clim
306        + params moved to data.exf
307        + climsst, climsss now handled by exf_set_gen, i.e.
308          climss?period=0 refers to constant field,
309          climss?period=-12 to monthly forcing
310      - split up namelists in data.exf
311    o pkg/seaice:
312      - remove seaice_exch and seaice_exch_uv
313      - remove superfluous exchange of theta
314      - add myThid to seaice_budget_ocean/ice
315      - add new interface for atmospheric wind forcing (C-grid only)
316        + new routine
317        + two new field (taux, tauy for stress over ice)
318        + removed one global field (DAIRN) for C-grid case only
319    o pkg/thsise
320      - 2nd set of modifs for thsice adjoint in conjunction with exf
321    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
322    
323    checkpoint58y_post
324    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
325      vertical diffusivity, similar to that in MOM4; turned on using
326      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
327      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
328    o Added capability for 3D specification of background vertical diffusion
329      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
330      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
331      "data" file that contains the 3D vertical diffusivity coefficients.
332    o ice dynamics (pkg/seaice) with thsice thermodynamics:
333      - add code within pkg thsice to advect & diffuse sea-ice fields
334      similar to (and will replace) what has been added in  seaice_advdiff.F,
335      but: - conserving Mass, Heat & Salt.
336           - better when using non-linear advection scheme (not yet fully tested)
337           - can also be used in atmospheric set-up (for now, only the diffusion).
338    
339    checkpoint58x_post
340    o IO option for global-file compact format:
341      - add options when generating topology (utils/exch2/matlab-topology-generator)
342      - add I/O capability (pkg/mdsio).
343      - adapt utils/matlab/rdmds.m to read this format.
344      for now long-line format not yet supported by pkg/mdsio (& exch2).
345    o shelfice: add a few diagnostics
346    
347    checkpoint58w_post
348    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
349      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
350      (and replace horiVertRatio in NH code).
351      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
352                         and tutorial_plume_on_slope (sensitive to truncation)
353    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
354      directly to drive seaice model (C-grid only)
355    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
356     - reintroduce computation of wind from stress,
357     - compute tau (in exf_bulkformulae.F) from windstress averaged to
358       mass points to avoid tau = 0
359     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
360    o rdmnc.m: make it work with "global" files created with gluemnc
361    o rdmnc.m : some improvements in dealing with singleton dimension
362      (tested on all testreport mnc output files).
363    o genmake2: disable pkg/profiles if netcdf test fails.
364    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
365    o move call to cal_readparms up to make calendar parameters/variable available
366      to all packages
367    
368    checkpoint58v_post
369    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
370      useDynP_inEos_Zc tested.
371    o pkg/exf: changes to properly interpolate/mask/scale initial fields
372    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
373      and portions thereof.  See read_cs.txt for description and examples.
374    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
375      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
376      following the great-circle arc between those 2 points.
377    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
378      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
379    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
380     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
381     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
382     - still needs work (not working with some options ; efficiency to improve)
383       and serious testing.
384     - use this scheme for temperature & salinity in 2 advection test exp.:
385       advect_xy & advect_xz, respectively.
386    
387    checkpoint58u_post
388    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
389    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
390    o testreport: add option "-skipdir" to skip some test.
391    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
392      momentum calculation.
393    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
394    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
395      remove checkpoint.F and the_correction_step.F (no longer used);
396      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
397    o add option (linFSConserveTr) to correct for tracer source/sink due to
398      Linear Free surface
399    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
400    o pkg/thsice: fix reading mnc-pickups
401    
402    checkpoint58t_post
403    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
404    o pkg/mdsio:
405     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
406       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
407       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
408     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
409     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
410       either MDS_READ_FIELD or MDS_WRITE_FIELD )
411     - new S/R (to replace MDSWRITEMETA), which allows to write more
412       informations (variable names, time ...) to meta files.
413     - modify rdmds.m to give back the meta file content.
414    o pkg/diagnostics: change vertical interpolation to be safer, and more
415       flexible (define p-levels to interpolate to in data.diagnostics);
416      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
417       diagnostic pointer.
418    o pkg/seaice: more cleaning up of seaice_growth, added many comments
419    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
420    o fix multi-category seaice:
421     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
422       SEAICE_MULTICATEGORY
423     - fix short wave heat flux
424    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
425       and allow to use EVP solver. Change forward lab_sea: test both EVP
426       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
427    o Initial check-in of lab_sea adjoint
428      (very similar to natl_box_adjoint/code_seaice)
429      * used C-grid and EVP solver
430      * used KPP, GM/Redi
431      * uses inAdExact=.TRUE.
432      * gradient checks fail for both ADM and TLM
433        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
434        f.d. gradients actually seem more problematic than ADM, TLM gradients;
435        issue is related to forward mismatch between g77 an ifort
436    o pkg/seaice: overhaul of thermodynamics
437     - growth.F and groatb.F are replaced by new routine seaice_growth.F
438     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
439     - move a few global fields out of SEAICE.h into seaice_growth.F and
440       make them 2D (FICE/QNETO/ ...)
441     - remove FO (it is the same as QNETO)
442     - introduce a few local fields to avoid modifying external fields such
443       as atemp, etc.
444    
445    checkpoint58s_post
446    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
447      changed exf_set_gen.F so that
448        genperiod=0 means input file is one time-constant field and
449        genperiod=-12 means input file contains 12 monthly means
450    o CG2D: use pre-computed solver main-diagonal (stored in common block);
451      this affects truncation error ; generate new output file for exp. which
452      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
453        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
454        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
455        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
456        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
457        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
458    o start implementation of deep-atmosphere and anelastic formulation
459    o verification: remove 2nd copy of input files and use script "prepare_run"
460      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
461    o mom_common/vecinv/fluxform: fix a few initialisation isssues
462    o profiles: fix for multithreaded case
463    
464    o diagnostics: rename few diags:
465      s/'PRESSURE'/'RCENTER '/g
466      s/'TICE    '/'oceFreez'/g
467      s/'TAUX    '/'oceTAUX '/g
468      s/'TAUY    '/'oceTAUY '/g
469      s/'SWFLUX  '/'oceQsw  '/g
470      s/DIFx/DFxE/g
471      s/DIFy/DFyE/g
472      and add few ocean-forcing diagnostics:
473      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
474    o modifications to pkg/seaice/growth.F and budget.F, which change results of
475      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
476      as actual snow thickness.  It now refers everywhere to effective snow
477      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
478    
479    checkpoint58r_post
480    o modifications to pkg/seaice/growth.F, which change results of
481      lab_sea experiment: fixes pertain to melting snow over open water, to
482      masking EVAP under sea ice, and to using the correct AREA variable for
483      computations of EVAP, PRECIP, HSNOW, and GHEFF
484    o add ability to read bathy, salt, and theta using MNC (off by def)
485    o add flooding algorithm and advection of HSNOW for pkg/seaice;
486      both are turned off by default and do no change any results
487    o seaice advection with pkg/thsice: a step toward the use of non-linear
488      advection scheme, but #ifdef or commented out for now (requires more EXCH).
489    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
490      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
491      in natl_box (affects results @ truncation level: update output.txt)
492    o multi-threading and IO:
493      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
494      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
495        (needed to work with SingleCpuIO): tested in all verif. exp.
496    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
497      affects the results (but none of the verification test uses this scheme).
498    o Adding some pkg/diagnostics capability to pkg/seaice
499      (will certainly be subject to changes)
500    o ctrl: adding new control variables:
501      lwflux, lwdown, evap, snowprecip, apressure, runoff
502    
503    checkpoint58q_post
504    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
505      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
506      high_res_cube configuration by 4% on Columbia.
507    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
508      add (in global_with_exf/code) a version of EXF_INTERP_READ without
509      dynamical allocation (seems to work in multi-threaded).
510    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
511      single CPU io) so that TAF does not have to see EESUPPORT.h
512    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
513    
514    checkpoint58p_post
515    o obcs: stop if obcs is used with useCDscheme = .true.
516    o shelfice:
517     - fix a sign error so that no slip at shelfice interface works
518     - remove stop for combination non-hydrostatic code and shelfice. That does
519       not mean, that the results are correct, but at least they are numerically
520       stable
521    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
522    o added adjoint exch routined for all exch*3d* routines
523      and updated flow directives
524    
525    checkpoint58o_post
526    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
527      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
528    o change controling S/R for writing pickup file (new S/R do_write_pickup)
529      and clean-up reading/writing of pickup files.
530    o fix local version of read/write pickup (NH part) in rotating_tank/code
531    o simplify EXCH interface:
532     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
533     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
534    o added the regrid package
535    o shelfice:
536     - add a simple boundary layer scheme to reduce noise
537     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
538    
539    checkpoint58n_post
540    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
541       local variable (not in common block).
542    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
543      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
544      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
545        to work with SingleCpuIO.
546    o add "_d 0" to real constant of pkg/cfc subroutines ;
547       update exp. cfc_exemple & tutorial_cfc_offline output files.
548    o multi-threading and IO:
549      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
550        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
551      - barrier before and after reading.
552      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
553      - avoid using MDS_WRITELOCAL for LAND pkg output.
554      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
555        common-block variables ; Allows multi-threading with master-thread IO.
556    o change default MAX_NO_THREADS from 32 to 4 ;
557      and stop cleanly when MAX_NO_THREADS is too small.
558    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
559    
560    checkpoint58m_post
561    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
562       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
563    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
564       keep global_ocean.90x40x15 (for AD testing) with former secondary test
565       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
566    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
567        add MITgcm_tutorials (= code + all the tutorials)
568    o ecco, option to compute cost for total ssh (mean+anom)
569    o consistent with addition of ptracer and ssh in pkg/profiles
570    o profiles: adding ptracer and ssh
571    o testreport: change multi-test output-file name
572      (from output.txt.{name} to output.{name}.txt)
573    o profiles: now ok for mutli-tiles case
574    o seaice: add 4 parameters for different advection schemes for area,
575      (effective) seaice thickness, enthalphy, and snow height. Their default
576      is the standard parameter SEAICEadvScheme
577    o calc_gw:
578     - add cosFacU in zonal viscous flux (harmonic.visc.).
579     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
580       of tutorial_plume_on_slope.
581    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
582    o calc_gw: true flux-form, account for horizontal grid spacing.
583      update rotating_tank results, but not plume_on_slope (affected at
584      truncation level, 11 digits).
585    
586    checkpoint58l_post
587    o calc_gw:
588     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
589     - remove side-drag for now (need to fix it); update plume_on_slope results.
590     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
591    o commit code to make SST/SSS weights spatially variable
592      (based on either variable in-situ or variable initial T/S weights)
593    o pkg/ecco:
594      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
595        now based on horizontally varying weights wthetaLev, wsaltLev
596      * cost_averagesflags now returns year indices in addition to day, month
597      * sflux balance is performed on annual basis
598        (sflxumm, sfluxmm2, bal_sfluxmm)
599      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
600        including separate counting and multipliers
601    o pkg/rbcs
602      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
603    
604    checkpoint58k_post
605    o testreport:
606     - always build in dir. "build" (if not there, mkdir build instead of building
607       & running in input)
608     - run in dir run (if it exists), in build otherwise.
609     - call prepare_run (if input/prepare_run exists)
610     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
611    o pkg/exf modifications to interpolation and rotation routines for more
612       reasonable treatment of North Pole singularity: for tracers North Pole
613       value is set to northernmost zonal-mean value, for zonal velocity it is
614       set to zero, and for meridional velocity it is set to northernmost value.
615    o pkg/exf/exf_check_range.F
616     - add tile index to diagnostics and move stop statement to the very
617       end of the routine.
618    o pkg/diagnostics: (diagnostics_main_init.F)
619      define title of isomorphic variables according to the current config.
620    o pkg/thsice with pkg/seaice dynamics:
621    - fix domain of computation (interior only, required for exf) and do exchanges
622    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
623    o towards a standard way of dealing with multi-threading in MONITOR
624      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
625    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
626       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
627    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
628    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
629    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
630       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
631    o tracer advection:
632     - clean-up and simplify calc_common_factors.F
633     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
634       advection subroutine (but still not used within DST advection S/R)
635    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
636    
637    checkpoint58j_post
638    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
639      from file (collects calls previously in FORWARD_STEP)
640    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
641    o adjoint store dir. adjusted accordingly
642    o genmake2
643      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
644    
645    checkpoint58i_post
646    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
647      on wind stress (SEAICEstressFactor defaults to 1.)
648    o Total number of Timers is finite (<=40): comment out 2 non-essential one
649      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
650    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
651      on CS-grid: no longer loosing mass.
652    o exf & curvilinear-grid: no longer modify longitude xC & xG.
653    o pkg/ggl90: fix sloppy output and fix a bug
654    o pkg/seaice: added SEAICEuseEVPpickup parameter
655      - Set to false in order to start EVP solver with
656        non-EVP pickup files when using SEAICEuseEVP
657      - fix sign error in diffusion in seaice_calc_rhs
658    
659    checkpoint58h_post
660    * Modifications for bottom topography control
661      o replace hFacC by _hFacC at various places
662      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
663      o add non-self-adjoint cg2d_nsa
664      o update autodiff support routines
665      o re-initialise hfac after ctrl_depth_ini
666      o works for 5x5 box, doesnt work for global_ocean.90x40x15
667    * Adding verification for 5x5 box (4-layer) bottom topography control
668    
669    checkpoint58g_post
670    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
671       used for mean seasonal cycle, mean diurnal cycle); add an example
672       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
673    o pkg/ggl90:
674      - add parameter (minimum surface kinetic energy)
675      - fix bug (avoiding division by zero)
676    o couple pkg/thsice to pkg/seaice:
677      - modify advection in seaice to accomodate new scalar fields to be advected
678      - only muliDimAdection scheme work with seaice/thsice
679      - mapping of thsice-variables to seaice-variables, back and forth
680      - does not break the verification experiments, but does not give the
681        desired results either
682    o pkg/seaice
683      - make (default) second order advection a bit less confusing?
684    
685    checkpoint58f_post
686    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
687      to pkg/seaice):
688      - new routines thsice_map_exf and thsice_get_exf provide the interface
689      - add an additional formal parameter to thsice_solve4temp
690    o pkg/exf:
691      - add new fields wspeed, snowprecip (to be able to couple to thsice)
692      - correct Stefan-Boltzmann constant
693      - new parameter for longwave surface emittance
694      - separate some stuff from exf_bulkformulae into new routines  
695        exf_radiation, exf_wind
696      - add new parameters and constants: longwave emissivity for ocean, ice
697        and snow, evaporation parameters over ice
698      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
699        either wind from stress or stress from wind
700    o pkg/thSIce:
701    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
702    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
703       and THSICE_CALC_THICKN
704    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
705    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
706      to make debugging easier.
707    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
708    o pkg/bulk_force:
709      - clean-up comments and parameters ;
710      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
711    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
712      generate new output for test-experiment: aim.5l_cs.thSI
713    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
714      testreport accordingly
715    
716    checkpoint58e_post
717    o SEAICE_CGRID adjoint done
718    o R_STAR adjoint implemented.
719      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
720      * need to sort out init. of h0facc, etc.
721    o Make pkg/profile fully independent of ecco,cost, etc. stuff
722      to be able to use it in pure forward.
723    
724    checkpoint58d_post
725    o upgrade simple test-experiment to tutorial example:
726     step.1: duplicate the experiment and (step.2) will remove the old copy.
727      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
728      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
729      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
730      tutorial_global_oce_biogeo    <- copy of dic_example
731      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
732      tutorial_plume_on_slope       <- copy of plume_on_slope
733      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
734      tutorial_global_oce_optim     <- empty for now (David ?)
735      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
736     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
737    o correct a sign problem in cost_scat.F
738    o obcs and ptracers: fix boundary conditions for advections schemes
739      with larger stencil
740    o thsice adjoint: start
741    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
742      completeness
743    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
744      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
745    o ptracers adjoint:
746      * avoid extensive recomputatations
747      * fix missing re-init. of gptr (missed by TAF)
748    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
749      me to turn off the excessive output to STDOUT that this package produces
750    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
751      and add those terms in Vector-Invariant formulation.
752    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
753      if the control period (xx_hfluxperiod etc) is 0
754    o in profiles pkg, clean routines and fix details
755    o in ecco pkg, reading ssh data:
756      fix problem in case the model does not start at iter0=0
757    o fix mnc-pickup/restart for ptracers
758    o new package prifiles:
759      code to compute profile-based cost by Gael Forget
760      (modifs in ecco, ctrl, autodiff)
761    o Benign bug fix in initialization (spotted by M. Mazloff) of
762      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
763    
764    checkpoint58c_post
765    o adjoint: finish NLFS adjoint and provide reference output in
766      verification/global_ocean.90x40x15/results_ad_nlfs
767    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
768      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
769      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
770      with SEAICE_CGRID defined.
771    o move calendarDumps from "data" to "data.cal" and clean-up the code
772      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
773    o add useEXF & useCAL flags (for now, set in hard-coded way)
774    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
775      (were missing in NH mode, and wrong in quasihydrostatic mode).
776      waiting for Chris updated version of calc_gw to add those CALLs.
777    o fix bug in quasihydrostatic S/R ;
778      add a test for this option: global_ocean.90x40x15.qshyd
779    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
780      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
781    o add on/off flag useOffLine for package OFFLINE
782    o seaice:
783      - modify advection so that it works also on the C-grid
784      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
785        problem in multi-tile runs with C-grid
786      - add flags for clipping ice velocities and/or masking solver forcing
787      - fix drag (ocean on ice) formulation and a bug that caused noise in the
788        C-grid solver
789      - added a few comments to seaice_diffusion.F
790      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
791        are now exclusive)
792      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
793        required re-ordering the code a little:
794       + make DAIRN global variable (defined in SEAICE)
795       + move computation of the viscosities eta and zeta into a new separate
796         routine (because I need to recompute them in seaice_ocean_stress.F)
797    
798    checkpoint58b_post
799    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
800      update output.txt of exp. aim.5l_cs.thSI
801    o various mnc cleanups and improvements:
802      + shrink lookup tables by factor of ~4
803      + better error reporting when running out of lookup space
804      + able to handle longer path/file names (up to 500 chars)
805    o adjoint:
806      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
807      - TBD: "hidden" mom_vecinv recomp. in dynamics
808    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
809     (allow to differentiate between forcing components using new integer flags:
810      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
811     and add new flag to put Dissipation tendency out of Adams-Bashforth.
812    o ecco
813      - enable trend removal from SSH anomaly obs.
814    o adjoint
815      - a fix for PmEpR when #undef EXACT_CONSERV
816      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
817      - try to fix "hidden" recomp. in forward_step for NLFS
818        (NLFS seems broken sometimes after I checked it in)
819    o seaice:
820     - add c-grid version of the dynamic solver:
821       + three new routines that are the c-grid substitute lsr, dynsolver
822         and ostres
823       + put a few fields that were local to dynsolver into global common
824         blocks, so that I can move the computation of stresses etc into
825         seaice_lsr (saves coding but may break the adjoint).
826     - replace more hardwired parameters by runtime parameters
827     - add ice masks that mask the rhs of the implicit solvers where there
828       is no ice (commented out in seaice_dynsolver, because i am not sure
829       if this works properly), eventually this should replace the clipping
830       of ice velocities in seaice_dynsolver to +/-40cm/s.
831    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
832      include it only where its needed
833    o move balancing of fluxes before the call of external_forcing_surf
834    o seaice:
835      - correct units of turning angles (now they are really in degrees)
836      - move computation of GWATX/Y out of main routine into dynsolver
837      - initialize GWATX/Y in seaice_init
838    o Apply mask on Fresh-Water flux (needed for SSH forcing).
839      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
840    o seaice: add runtime flags for turning angles (default to zero)
841    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
842      and trend from exf forcing and ctrl control adjustments
843    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
844      (since checkpoint57x_post)
845    o change the default rotation period to 86164.s = the Earth rotation
846    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
847      and based on a reference stratification. Tested within hs94.cs-32x32x5.
848    o seaice advection: add code for choosing between the default (2nd order
849      central differences) and multiDim advection schemes provided by
850      pkg/generic_advdiff
851    o seaice:
852      - removed all references to SEAICE_GRID.h fields from
853        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
854        (cubed-sphere configuration will change a little)
855      - grid computations in seaice_init are obsolete now.
856      - cleaned up code a little so that is easier to read (hopefully).
857      - added new (better?) discretizations of default advection and diffusion
858        (turn on with SEAICEuseFluxForm)
859      - replace 1 in 3d global fields by kSurface in growth.F
860      
861    checkpoint58a_post
862    o seaice:
863      - bug fix in advect.F
864    o shelfice:
865      - separate shelfice load anomaly from pload (breaks with time
866        dependent forcing), => introduce constant field shelficeLoadAnomaly.
867        Its default is 0., but it may be computed more cleverly from (unknown)
868        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
869        done offline. A good approximation of the pressure load anomaly is
870        necessary to avoid large initial adjustment processes underneath
871        deep-reaching shelfice.
872      - small fix in ISOMIP shelfice_thermodynamics
873      - add more sophisticated thermodynamics of Hellmer (1989), this is
874        now the default
875      - give a few constants more intuitive names
876    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
877      if bulk formulae are used in long integration (especially EmPmR). Turn
878      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
879      if balancePrintMean, the imbalance that is substracted is printed to
880      STDOUT.
881    o fix bug (typo) in obcs_apply_eta.F
882    o add a new package shelfice which enables us to model the circulation
883      underneath shelf-ice with draughts of hundreds of meters.
884     - works
885     - to do: + include improved thermodynamics
886              + check whether kSurfC (from model/inc/SURFACE.h) can be used
887                instead of new field kTopC
888              + can we use topoFile, Ro_surf and existing code in ini_depth.F
889                instead of new field R_shelfIce and new code in ini_depth.F
890                and ini_mask_etc.F?
891              + adjust vertical mixing schemes?
892    o seaice pkg:
893     - add a cpp-flag to include a simple formula for a salinity dependent
894       freezing point of sea water at the surface
895     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
896       meridional stresses are now different (and hopefully correct)
897    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
898       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
899       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
900    o pkg/diagnostics: add options and parameters for regional-statistics
901       diagnostics ; define regions by reading a region-mask from a file
902       (might add other options later)
903    o pkg/bulk_force:
904     - add option and parameters to use AIM surface-flux formulae.
905     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
906       others forcing fields (defined in PARM05, parameter file "data") are loaded
907       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
908     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
909     - use the right EXCH call for uwind,vwind (to work on CS-grid).
910     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
911       and parameters (note: calcWindStress replaces .NOT.readwindstress).
912     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
913    
914    checkpoint58
915    o add "--embed-source" option to genmake2 which, when the supporting
916      tools can be compiled (as determined by genmake2) will turn on the
917      embed_files package which then embeds the entire MITgcm source code
918      (*.[fFhc] + Makefile) used for the build within the executable
919      - requested by CNH but off by default
920      - adds a paltry <9MB to the mitgcmuv executable in most cases
921      - only writes the output when useEMBEDSRC in eedata is true
922    o clean up 3-dim. relaxation codes:
923      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
924      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
925      * Thanks to Tom Haine for testing!
926    
927    checkpoint57z_post
928    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
929      affects output (@ truncation level) of exp. plume_on_slope ; updated.
930    o fix the pickup behavior for obcs in combination with ptracers
931    o fix a bug in ptracers_external_fields_load
932    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
933      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
934    o transfered surface NH pressure to eta field (if exactConserv).
935  o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)  o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
936       and update lab_sea output.txt file.       and update lab_sea output.txt file.
937    o completing 3-dim. relaxation code: additional term
938         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
939      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
940      * At compile time, in "EXF_OPTIONS.h" set
941          #define  ALLOW_CLIMTEMP_RELAXATION
942          #define  ALLOW_CLIMSALT_RELAXATION
943      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
944          tauThetaClimRelax3Dim = 15552000.0,
945          tauSaltClimRelax3Dim  = 15552000.0,
946      * 3 cases:
947          1) Use a constant-in-time 3-dim. field
948          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
949          3) Real-time relax. to time-evolving prescribed field
950    o Adding Laplacian-type smoothness constraint on
951      initial and boundary (forcing) controls (ic, bc)
952      * enable at compile-time via
953        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
954      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
955      * Absolute scale somewhat unclear so far
956      * no area weighting was included since no other cost term does so far
957    
958  checkpoint57y_post  checkpoint57y_post
959  First step for a NLFS adjoint  First step for a NLFS adjoint

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