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revision 1.689 by jmc, Mon Jun 26 00:16:54 2006 UTC revision 1.908 by jmc, Sat Nov 10 22:17:09 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/ptracers:
8      use use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
9      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
10    
11    checkpoint59j
12    o in pkgs: dic, obcs, offline, rbcs:
13      standard way to compute coeff. for time interpolation between 2 time reccords
14      which retains full precision (& make results less dependent on compiler).
15      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
16    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
17      packages instead of reading ice cover and wind speed separately
18    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
19     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
20      to allow to compile customized code before the update)
21    o cleaning-up:
22      - fix CPP instruction syntax in pkg/obcs
23      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
24        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
25      - fix some threads issue in IO parts.
26    o pkg/dic:
27      - add tons of "_d 0" (--> much better testreports !)
28       and then update outputs of tutorial_global_oce_biogeo
29    o pkg/mom_fluxform:
30      add a special version of momentum advection intended to conserve momentum
31      next to a bathymetry step or a coastline edge. (default = off = #undef)
32    o new read/write pickup version:
33      - for now, only implemented for main (mdsio) pickup file.
34      - write out only what is needed to restart; merge pickup_nh , pickup_ph
35        and main pickup together.
36      - read meta file; read only what is needed to restart; stop if a field
37        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
38        if it make sense (even if the restart is not perfect).
39      - if no meta file, assume that pickup to read corresponds exactly to
40        a pickup that would currently be written.
41      - read pickup written in the old format (until checkpoint59i) if it
42        recognizes an old meta file (no field-list).
43      - add a meta file in exp. which starts from a pickup: 2 cases:
44        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
45         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
46        b) a meta file describing the content of the associated pickup file
47         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
48    o pkg/mdsio & pkg/rw:
49      - new routine to read a meta file ; new set of routine to read
50        Multiple-fields file (with meta file).
51    o added open boundary conditions capability for seaice
52        HSNOW, HSALT, UICE, and VICE
53    
54    checkpoint59i
55    o adjoint:
56      * fix multiDimAdvection adjoint
57        (partial recomputation problem by TAF for fVerT(:,:,kDown)
58        and comlev1 size definition (maxpass vs. max. number of tracers)
59      * verification/global_ocean.90x45x15 adjoint now tests
60        NLFS and multiDimAdvection using DST3 (=30)
61      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
62    o pkg/kpp: add "_d 0" to real constant (if missing);
63      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
64      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
65    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
66      for internal parameters related to restart process (formerly from PARAMS.h)
67      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
68    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
69      as argument. (only atm2d & obcs write_pickup have not yet been updated)
70    o pkg/monitor:
71      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
72      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
73      - account for deep Atmosphere factor and density factor (anelastic)
74    o added open boundary conditions capability for seaice HEFF and AREA
75    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
76      thermodynamics
77      - requires a little reorganization, which affects the testreport results
78        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
79        so that now the conservative form is tested
80      - add a few comments
81    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
82    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
83    o add new diagnostics to seaice: advective, diffusive fluxes (only for
84      multidim-advection, for scheme 2 they are not filled) and transports,
85      thermodynamic growth rates
86    o change units of EmPmR (inside the code, + within coupling interface)
87      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
88      Affects results @ truncation level (cg2d match) and update output of
89       experiments: lab_sea(6), global_ocean.90x40x15(10),
90      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
91      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
92      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
93      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
94    
95    checkpoint59h
96    o pkg/exf:
97      - improve vectorization by moving if-statement out of loops in
98        exf_mapfields, exf_radiation
99      - exf_bulkformulae.F: introduce 2D fields and vectorize code
100    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
101    o testreport:
102      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
103        monitor & update offline_exf_seaice exp. output.
104      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
105    o pkg/seaice:
106      - bug fix in the evp solver: boundary conditions were affected be
107        masking of zMax/zMin (changes results)
108      - minor bug fix in boundary conditions in seaice_calc_strainrates
109        (changes results for no_slip)
110      - seaice_lsr.F: make interpolation of eta dependent on boundaries
111      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
112      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
113        stress formulation and no-slip boundary conditions
114    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
115      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
116    o pkg/seaice: a first HSALT time stepping equation has been checked in
117    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
118      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
119      without requiring DO-IF statements
120    o pkg/thsice:
121      use continuous power-law function for partition of energy between lateral
122      melting/freezing and thinning/thickening ; old code using step function
123      still available with #undef THSICE_FRACEN_POWERLAW
124      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
125    o testreport: change AD testing : check against results/output_adm.txt
126      using same scripts as for forward test.
127    
128    checkpoint59g
129    o adjoint testing: in preparation for changing testreport:
130      - output format: cost and grad written on separated lines
131      - ad output results in directory "results" (instead of "results_ad")
132    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
133    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
134    o pkg/ecco: allow user defined cost function contributions
135    o testreport:
136      Allow to choose (per experiment) the list of tested output variables
137       and the main variable (used to issue a pass/FAIL ) ;
138      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
139      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
140      Also modify printing of summary:
141       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
142       b) echo the list of tested variables in the individual summary.txt of
143          each experiment.
144    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
145      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
146      (but still depend on the tile decompostion of the domain).
147    o pkg/seaice: change a discretization detail to make the B-grid code
148      "more symmetric". This change is likely to remove all "ridges/leads" that
149      where quasi-aligned with the grid in B-grid solutions. It may also be
150      the solution to the stress coupling issues with the B-grid.
151    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
152      remove .cvsignore from input dir. (since testreport no longer run here).
153    o pkg/thsice:
154     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
155     - fix reshaping of sea-ice just after advection:
156       melt all the ice only if ice-volume is too small.
157     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
158       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
159     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
160    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
161      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
162    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
163      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
164      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
165      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
166      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
167      -> update output.txt
168    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
169     this affects truncation error: -> update output.txt of exp:
170      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
171      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
172    
173    checkpoint59f
174    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
175    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
176      a bounded range (in forward mode)
177    o pkg/ecco, ctrl, autodiff and mom_common:
178     internal parameter controls, completements of implementations
179    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
180    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
181      (not seem any difference in testing results).
182    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
183       at face corners.
184    o pkg/generic_advdiff:
185     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
186      loop range indices for computing vertical advection tendency
187      and do the calculation in the interior only (no overlap) ;
188      for now, only implemented for SOM advection (to save CPU time).
189     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
190    o exch2 adjoint
191      First set of changes:
192      - add exch2 hand-written adjoint templates
193      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
194        This will require cleanup in pkg/autodiff/*.F
195        (changed routines currently kept separate in verif. code/)
196      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
197        that used to hide exch2 or cubed-sphere specific code
198        (commented via 'cph-exch2')
199    o pkg/seaice
200      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
201    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
202       output of global_ocean.cs32x15.thsice .
203    
204    checkpoint59e
205    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
206      for B-grid vector (not yet tested) and C-grid vector (<- only used
207      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
208    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
209      (#ifdef ALLOW_SALT_PLUME)
210    o gather_2d/scatter_2d: removed halo regions
211    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
212      scheme and the corresponding test case (under front_relax dir). For now,
213      only available with Skew-flux form and not yet tested in realistic set-up.
214      adjoint: store directives updated, but gradient checks deteriorated,
215      so maybe GM/Redi adjoint is now broken.
216    o seaice adjoint
217      * add AREA, HEFF, HSNOW as control variable
218        (should not change lab_sea results)
219      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
220    o pkg/seaice:
221      * added computation of saltFlux in seaice_growth;
222        For time being, sea ice salinity is assumed constant
223        contribution of snow flooding to freshening of sea ice is neglected.
224        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
225        defaults to 0.0 in order to maintain backward compatibility.
226        Typical values for SEAICE_salinity are 4 to 10 g/kg.
227      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
228      * added SEAICE_availHeatFrac, which specifies fraction of surface level
229        heat content used to melt or grow ice
230      * commented out cap of HICE: it helps keep ice thinner
231      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
232      * applied OBCS T/S mask to HEFFM sea ice mask
233    
234    checkpoint59d
235    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
236     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
237     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
238    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
239     and change default value of parameter "GM_Small_Number";
240     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
241       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
242       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
243    o pkg/ecco: cost function when applying pkg/smooth to controls
244    o pkg/ctrl: add forcingPrecond run time parameter
245    o pkg/seaice:
246     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
247     - fix bug in metric terms of u-equation in LSR solver (implicit part),
248       changes verification/lab_sea
249     - rearrange implicit part of u-equation in LSR solver to make it easier to
250       read, understand, and debug. This causes changes at the truncation level.
251     - fix (serious) bug in the boundary conditions (sign error in the implicit
252       part) of the LSR solver. Changes all LSR results.
253     - fixed problem with HSNOW initialization to avoid thick snow when AREA
254       is initilized with small values - does not change lab_sea results.
255     - added HsnowFile initialization capability
256    o pkg/smooth: addition to model/src and pkg/ctrl so allow
257     initialization of pkg/smooth and application to control vector
258    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
259    o dependencies: pkg/profiles requires pkg/cal
260    o pkg/profiles:
261     - added option ALLOW_PROFILES_GENERICGRID
262         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
263         that interpolation information (grid points and coefficients) is provided
264         within the netcdf input files.
265         -> sample matlab scripts can be found in MITgcm_contrib/gael
266         that allow you to prepare netcdf input files.
267     - also modified: cleaner include statements, cleaner error print statements,
268       cleaner stops when error, and more tests of the netcdf input files consistency.
269    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
270    o pkg/seaice:
271     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
272       requires a new routine: seaice_diagnostics_fill.F
273     - make sure that seaice does not move if not forced (pressure replacement
274       method, Hibler and Ip, 1995), changes results
275     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
276     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
277       It is turned off by default (=-1.), because it changes the results.
278     - make it possible to read AREA from a file, too.
279    
280    checkpoint59c
281    o add S/R and diagnostics for oceanic mixed-layer depth
282    o move GMRedi call after all vertical mixing schemes (including KPP)
283    o pkg/thsice:
284     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
285      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
286    o pkg/obcs:
287     - bug fix for balance code
288    o pkg/seaice:
289      - allow values of SEAICE_elasticParm > 1
290      - add new parameter SEAICE_evpTauRelax as an alternative
291        to SEAICE_elasticParm
292      - make lsr boundary conditions free slip (by default), changes result
293      - add code for no slip boundary conditions for lsr
294      - set minimum of zeta to zero (and not 4e8) (changes results)
295      - add a cap on AREA after advecting AREA if seaice_growth is not called
296    o change calculation of Visbeck K:
297      - no longer depend on tapering scheme; instead, compute slope (limited
298        by GM_maxSlope). this is equivalent to what was comuted before with
299        clipping or linear tappering.
300      - fix vertical averaging (wrong by 1/2 level)
301      - leave the old version (but will not be maintained) within
302        #ifdef OLD_VISBECK_CALC / #endif
303      - update output of exp. ideal_2D_oce
304    o change error catch in calc_r_star to improve vectorization
305    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
306      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
307    o adjoint:
308      Re-organized adjoint checkpointing according to Matt Mazloff
309      (but with modifs/completions/cleanups)
310      Storing is now bundled into large arrays to optimized I/O
311      (and second step in cleanup of the_main_loop)
312    
313    checkpoint59b
314    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
315      - export/import (between ocean & coupler) fields needed for ocean DIC.
316    o pkg/seaice:
317      - get rid of three more exchanges seaice_calc_viscosities (required
318        different loop boundaries in seaice_lsr and seaice_ocean_stress)
319      - bug fix in seaice_ocean_stress (update of lab_sea required)
320      - reduce loop boundaries to necessary minimum also in seaice_evp
321      - go back to the old way of computing deltaC/Z as the adjoint likes that
322        better
323    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
324      passive tracer to an Age Tracer) + update output.txt
325    o pkg/exf:
326      - implement A-grid / C-grid selection for wind-stress input files.
327      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
328      for now, in exf_bulk_largeyeager04.F only :
329      - change implementation for case where windspeed + 2. components wind-stress
330        are read-in. AND use rhoConstFresh to convert evap.
331    o pkg/seaice:
332      - use correct EXCH_UV for wind-forcing (on A-grid).
333      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
334        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
335    o pkg/exf:
336      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
337      EXF_INTERPOLATION:
338      - merge global_with_exf/code version of exf_interp_read.F
339        to the main code ;
340      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
341        reading the file ; Important: This options needs to be defined to recover
342        previous code.
343        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
344      - no longer loose real*8 precision along the way when using exf_iprec=64.
345    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
346      - change discretisation of evp-solver in order to avoid another exchange
347        (changes lab_sea) and clean up a little
348      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
349        help the adjoint (this also changes the results slightly)
350      - add a few "_d 0" where they had been missing in seaice_evp.F
351      - cleaning up: remove unused seaice_calc_rhs.F
352    o pkg/exf: some cleaning-up:
353      - change various "constants" into runtime parameters
354      - cleaned-up Large&Yeager04 routine which should eventually
355        replace exf_bulkformulae.F (changed names of S/R and CPP)
356        and merged various ALLOW_ATM_WIND options
357     only used with thsice pkg (in thsice_get_exf.F):
358      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
359        which are used when useStabilityFct_overIce=TRUE (= the default)
360      - change default values of ice & snow emissivity and scale downward LW
361        by ice & snow emissivity.
362    o pkg/thsice:
363     fix few little problems, in thsice_calc_thickn.F:
364      - growth vertically (and not laterally) if iceFrac == iceMaskMax
365      - melt only laterally if hIce < hThinIce (as the comments say)
366      and in thsice_extend.F:
367      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
368      - start to form ice as soon as the minimum ice-volume is reachable.
369     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
370      and cpl_aim+ocn
371    o pkg/kpp
372     - move computation of surface related input fields to KPP into a new
373       subroutine kpp_forcing_surf.F
374     - remove wrong (within bi,bj loops) EXCH calls.
375     - little cleaning (add argument myThid in last position, cvs header ...)
376     - for now, fix conservation problem by exchanging KPPviscAz (may not
377       be the best fix)
378    o pkg/seaice
379     - check for inconsistent evp parameter/cpp-flag combination
380     - remove leftover errIO flat for obsolete name list error handling
381    o OpenAD
382     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
383    
384    checkpoint59a
385    o pkg/seaice: some parameter clarifications and a little bit of clean up
386    o pkg/thsice: rename run-time parameters:
387       himin       -> hIceMin
388       himin0      -> hThinIce
389       hihig       -> hThickIce
390       i0          -> i0swFrac
391       transCoef   -> bMeltCoef
392       frac_energy -> fracMelting
393      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
394       with default values (for now) that do not change the results.
395      remove old version of thsice vars advection in pkg/seaice.
396    o in FFIELDS.h:
397      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
398      - make pLoad & sIceLoad always available (but still only used if
399         ATMOSPHERIC_LOADING is #define).
400    o pkg/kpp: replaced _KPP_RL with _RL
401    o bug fixes for vertical diffusivity computations when both KPP and
402        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
403        are no longer updating the vertical diffusivity array
404        (passed as argument) but are (re-) setting those arrays.
405    o pkg/seaice: fix bug in evp solver, while doing that
406      - change (improve?) discretization of stress computations for both
407        cgrid-lsr and evp solver
408      - add a new routine to compute strain rates
409      - the above changes lab_sea results
410      - add no slip conditions for evp solver (off by default), lsr-version
411        may follow
412      - fix exchange for shear at Z-points (does not change lab_sea)
413      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
414        (to force the user to pick a time step since there is not "safe" way
415        of choosing it)
416      - add principal stress diagnostics
417      - rearrange fields for evp a little to avoid having to call a: too many
418        exchanges and b: exchanges for stress trensor components which we do
419        not have.
420      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
421        of evp, complete rewrite for lsr case (latter is does not yet work
422        in all cases)
423    o pkg/kpp: add code to have mixing in shelf ice caverns
424      - add myThid to all kpp routines (long overdue)
425    
426    checkpoint59
427    o pkg/exf:
428      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
429        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
430      - move exf header files from lower_case.h to UPPER_CASE.h ;
431        add missing cvs Header & Name
432      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
433      - add namelist param. selectStressGridPosition, exf_monFreq
434      - retire many _CLIM routines, and remove data.exf_clim
435        + params moved to data.exf
436        + climsst, climsss now handled by exf_set_gen, i.e.
437          climss?period=0 refers to constant field,
438          climss?period=-12 to monthly forcing
439      - split up namelists in data.exf
440    o pkg/seaice:
441      - remove seaice_exch and seaice_exch_uv
442      - remove superfluous exchange of theta
443      - add myThid to seaice_budget_ocean/ice
444      - add new interface for atmospheric wind forcing (C-grid only)
445        + new routine
446        + two new field (taux, tauy for stress over ice)
447        + removed one global field (DAIRN) for C-grid case only
448    o pkg/thsise
449      - 2nd set of modifs for thsice adjoint in conjunction with exf
450    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
451    
452    checkpoint58y_post
453    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
454      vertical diffusivity, similar to that in MOM4; turned on using
455      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
456      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
457    o Added capability for 3D specification of background vertical diffusion
458      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
459      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
460      "data" file that contains the 3D vertical diffusivity coefficients.
461    o ice dynamics (pkg/seaice) with thsice thermodynamics:
462      - add code within pkg thsice to advect & diffuse sea-ice fields
463      similar to (and will replace) what has been added in  seaice_advdiff.F,
464      but: - conserving Mass, Heat & Salt.
465           - better when using non-linear advection scheme (not yet fully tested)
466           - can also be used in atmospheric set-up (for now, only the diffusion).
467    
468    checkpoint58x_post
469    o IO option for global-file compact format:
470      - add options when generating topology (utils/exch2/matlab-topology-generator)
471      - add I/O capability (pkg/mdsio).
472      - adapt utils/matlab/rdmds.m to read this format.
473      for now long-line format not yet supported by pkg/mdsio (& exch2).
474    o shelfice: add a few diagnostics
475    
476    checkpoint58w_post
477    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
478      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
479      (and replace horiVertRatio in NH code).
480      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
481                         and tutorial_plume_on_slope (sensitive to truncation)
482    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
483      directly to drive seaice model (C-grid only)
484    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
485     - reintroduce computation of wind from stress,
486     - compute tau (in exf_bulkformulae.F) from windstress averaged to
487       mass points to avoid tau = 0
488     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
489    o rdmnc.m: make it work with "global" files created with gluemnc
490    o rdmnc.m : some improvements in dealing with singleton dimension
491      (tested on all testreport mnc output files).
492    o genmake2: disable pkg/profiles if netcdf test fails.
493    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
494    o move call to cal_readparms up to make calendar parameters/variable available
495      to all packages
496    
497    checkpoint58v_post
498    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
499      useDynP_inEos_Zc tested.
500    o pkg/exf: changes to properly interpolate/mask/scale initial fields
501    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
502      and portions thereof.  See read_cs.txt for description and examples.
503    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
504      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
505      following the great-circle arc between those 2 points.
506    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
507      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
508    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
509     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
510     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
511     - still needs work (not working with some options ; efficiency to improve)
512       and serious testing.
513     - use this scheme for temperature & salinity in 2 advection test exp.:
514       advect_xy & advect_xz, respectively.
515    
516    checkpoint58u_post
517    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
518    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
519    o testreport: add option "-skipdir" to skip some test.
520    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
521      momentum calculation.
522    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
523    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
524      remove checkpoint.F and the_correction_step.F (no longer used);
525      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
526    o add option (linFSConserveTr) to correct for tracer source/sink due to
527      Linear Free surface
528    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
529    o pkg/thsice: fix reading mnc-pickups
530    
531    checkpoint58t_post
532    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
533    o pkg/mdsio:
534     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
535       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
536       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
537     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
538     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
539       either MDS_READ_FIELD or MDS_WRITE_FIELD )
540     - new S/R (to replace MDSWRITEMETA), which allows to write more
541       informations (variable names, time ...) to meta files.
542     - modify rdmds.m to give back the meta file content.
543    o pkg/diagnostics: change vertical interpolation to be safer, and more
544       flexible (define p-levels to interpolate to in data.diagnostics);
545      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
546       diagnostic pointer.
547    o pkg/seaice: more cleaning up of seaice_growth, added many comments
548    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
549    o fix multi-category seaice:
550     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
551       SEAICE_MULTICATEGORY
552     - fix short wave heat flux
553    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
554       and allow to use EVP solver. Change forward lab_sea: test both EVP
555       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
556    o Initial check-in of lab_sea adjoint
557      (very similar to natl_box_adjoint/code_seaice)
558      * used C-grid and EVP solver
559      * used KPP, GM/Redi
560      * uses inAdExact=.TRUE.
561      * gradient checks fail for both ADM and TLM
562        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
563        f.d. gradients actually seem more problematic than ADM, TLM gradients;
564        issue is related to forward mismatch between g77 an ifort
565    o pkg/seaice: overhaul of thermodynamics
566     - growth.F and groatb.F are replaced by new routine seaice_growth.F
567     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
568     - move a few global fields out of SEAICE.h into seaice_growth.F and
569       make them 2D (FICE/QNETO/ ...)
570     - remove FO (it is the same as QNETO)
571     - introduce a few local fields to avoid modifying external fields such
572       as atemp, etc.
573    
574    checkpoint58s_post
575    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
576      changed exf_set_gen.F so that
577        genperiod=0 means input file is one time-constant field and
578        genperiod=-12 means input file contains 12 monthly means
579    o CG2D: use pre-computed solver main-diagonal (stored in common block);
580      this affects truncation error ; generate new output file for exp. which
581      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
582        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
583        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
584        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
585        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
586        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
587    o start implementation of deep-atmosphere and anelastic formulation
588    o verification: remove 2nd copy of input files and use script "prepare_run"
589      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
590    o mom_common/vecinv/fluxform: fix a few initialisation isssues
591    o profiles: fix for multithreaded case
592    
593    o diagnostics: rename few diags:
594      s/'PRESSURE'/'RCENTER '/g
595      s/'TICE    '/'oceFreez'/g
596      s/'TAUX    '/'oceTAUX '/g
597      s/'TAUY    '/'oceTAUY '/g
598      s/'SWFLUX  '/'oceQsw  '/g
599      s/DIFx/DFxE/g
600      s/DIFy/DFyE/g
601      and add few ocean-forcing diagnostics:
602      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
603    o modifications to pkg/seaice/growth.F and budget.F, which change results of
604      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
605      as actual snow thickness.  It now refers everywhere to effective snow
606      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
607    
608    checkpoint58r_post
609    o modifications to pkg/seaice/growth.F, which change results of
610      lab_sea experiment: fixes pertain to melting snow over open water, to
611      masking EVAP under sea ice, and to using the correct AREA variable for
612      computations of EVAP, PRECIP, HSNOW, and GHEFF
613    o add ability to read bathy, salt, and theta using MNC (off by def)
614    o add flooding algorithm and advection of HSNOW for pkg/seaice;
615      both are turned off by default and do no change any results
616    o seaice advection with pkg/thsice: a step toward the use of non-linear
617      advection scheme, but #ifdef or commented out for now (requires more EXCH).
618    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
619      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
620      in natl_box (affects results @ truncation level: update output.txt)
621    o multi-threading and IO:
622      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
623      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
624        (needed to work with SingleCpuIO): tested in all verif. exp.
625    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
626      affects the results (but none of the verification test uses this scheme).
627    o Adding some pkg/diagnostics capability to pkg/seaice
628      (will certainly be subject to changes)
629    o ctrl: adding new control variables:
630      lwflux, lwdown, evap, snowprecip, apressure, runoff
631    
632    checkpoint58q_post
633    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
634      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
635      high_res_cube configuration by 4% on Columbia.
636    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
637      add (in global_with_exf/code) a version of EXF_INTERP_READ without
638      dynamical allocation (seems to work in multi-threaded).
639    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
640      single CPU io) so that TAF does not have to see EESUPPORT.h
641    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
642    
643    checkpoint58p_post
644    o obcs: stop if obcs is used with useCDscheme = .true.
645    o shelfice:
646     - fix a sign error so that no slip at shelfice interface works
647     - remove stop for combination non-hydrostatic code and shelfice. That does
648       not mean, that the results are correct, but at least they are numerically
649       stable
650    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
651    o added adjoint exch routined for all exch*3d* routines
652      and updated flow directives
653    
654    checkpoint58o_post
655    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
656      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
657    o change controling S/R for writing pickup file (new S/R do_write_pickup)
658      and clean-up reading/writing of pickup files.
659    o fix local version of read/write pickup (NH part) in rotating_tank/code
660    o simplify EXCH interface:
661     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
662     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
663    o added the regrid package
664    o shelfice:
665     - add a simple boundary layer scheme to reduce noise
666     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
667    
668    checkpoint58n_post
669    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
670       local variable (not in common block).
671    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
672      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
673      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
674        to work with SingleCpuIO.
675    o add "_d 0" to real constant of pkg/cfc subroutines ;
676       update exp. cfc_exemple & tutorial_cfc_offline output files.
677    o multi-threading and IO:
678      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
679        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
680      - barrier before and after reading.
681      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
682      - avoid using MDS_WRITELOCAL for LAND pkg output.
683      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
684        common-block variables ; Allows multi-threading with master-thread IO.
685    o change default MAX_NO_THREADS from 32 to 4 ;
686      and stop cleanly when MAX_NO_THREADS is too small.
687    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
688    
689    checkpoint58m_post
690    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
691       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
692    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
693       keep global_ocean.90x40x15 (for AD testing) with former secondary test
694       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
695    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
696        add MITgcm_tutorials (= code + all the tutorials)
697    o ecco, option to compute cost for total ssh (mean+anom)
698    o consistent with addition of ptracer and ssh in pkg/profiles
699    o profiles: adding ptracer and ssh
700    o testreport: change multi-test output-file name
701      (from output.txt.{name} to output.{name}.txt)
702    o profiles: now ok for mutli-tiles case
703    o seaice: add 4 parameters for different advection schemes for area,
704      (effective) seaice thickness, enthalphy, and snow height. Their default
705      is the standard parameter SEAICEadvScheme
706    o calc_gw:
707     - add cosFacU in zonal viscous flux (harmonic.visc.).
708     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
709       of tutorial_plume_on_slope.
710    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
711    o calc_gw: true flux-form, account for horizontal grid spacing.
712      update rotating_tank results, but not plume_on_slope (affected at
713      truncation level, 11 digits).
714    
715    checkpoint58l_post
716    o calc_gw:
717     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
718     - remove side-drag for now (need to fix it); update plume_on_slope results.
719     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
720    o commit code to make SST/SSS weights spatially variable
721      (based on either variable in-situ or variable initial T/S weights)
722    o pkg/ecco:
723      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
724        now based on horizontally varying weights wthetaLev, wsaltLev
725      * cost_averagesflags now returns year indices in addition to day, month
726      * sflux balance is performed on annual basis
727        (sflxumm, sfluxmm2, bal_sfluxmm)
728      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
729        including separate counting and multipliers
730    o pkg/rbcs
731      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
732    
733    checkpoint58k_post
734    o testreport:
735     - always build in dir. "build" (if not there, mkdir build instead of building
736       & running in input)
737     - run in dir run (if it exists), in build otherwise.
738     - call prepare_run (if input/prepare_run exists)
739     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
740    o pkg/exf modifications to interpolation and rotation routines for more
741       reasonable treatment of North Pole singularity: for tracers North Pole
742       value is set to northernmost zonal-mean value, for zonal velocity it is
743       set to zero, and for meridional velocity it is set to northernmost value.
744    o pkg/exf/exf_check_range.F
745     - add tile index to diagnostics and move stop statement to the very
746       end of the routine.
747  o pkg/diagnostics: (diagnostics_main_init.F)  o pkg/diagnostics: (diagnostics_main_init.F)
748    define title of isomorphic variables according to the current config.    define title of isomorphic variables according to the current config.
749  o pkg/thsice with pkg/seaice dynamics:  o pkg/thsice with pkg/seaice dynamics:

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