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revision 1.672 by dimitri, Thu Jun 8 23:09:55 2006 UTC revision 1.900 by jmc, Sun Oct 28 21:39:40 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/mom_fluxform:
8      add a special version of momentum advection intended to conserve momentum
9      next to a bathymetry step or a coastline edge. (default = off = #undef)
10    o new read/write pickup version:
11      - for now, only implemented for main (mdsio) pickup file.
12      - write out only what is needed to restart; merge pickup_nh , pickup_ph
13        and main pickup together.
14      - read meta file; read only what is needed to restart; stop if a field
15        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
16        if it make sense (even if the restart is not perfect).
17      - if no meta file, assume that pickup to read corresponds exactly to
18        a pickup that would currently be written.
19      - read pickup written in the old format (until checkpoint59i) if it
20        recognizes an old meta file (no field-list).
21      - add a meta file in exp. which starts from a pickup: 2 cases:
22        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
23         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
24        b) a meta file describing the content of the associated pickup file
25         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
26    o pkg/mdsio & pkg/rw:
27      - new routine to read a meta file ; new set of routine to read
28        Multiple-fields file (with meta file).
29    o added open boundary conditions capability for seaice
30        HSNOW, HSALT, UICE, and VICE
31    
32    checkpoint59i
33    o adjoint:
34      * fix multiDimAdvection adjoint
35        (partial recomputation problem by TAF for fVerT(:,:,kDown)
36        and comlev1 size definition (maxpass vs. max. number of tracers)
37      * verification/global_ocean.90x45x15 adjoint now tests
38        NLFS and multiDimAdvection using DST3 (=30)
39      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
40    o pkg/kpp: add "_d 0" to real constant (if missing);
41      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
42      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
43    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
44      for internal parameters related to restart process (formerly from PARAMS.h)
45      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
46    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
47      as argument. (only atm2d & obcs write_pickup have not yet been updated)
48    o pkg/monitor:
49      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
50      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
51      - account for deep Atmosphere factor and density factor (anelastic)
52    o added open boundary conditions capability for seaice HEFF and AREA
53    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
54      thermodynamics
55      - requires a little reorganization, which affects the testreport results
56        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
57        so that now the conservative form is tested
58      - add a few comments
59    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
60    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
61    o add new diagnostics to seaice: advective, diffusive fluxes (only for
62      multidim-advection, for scheme 2 they are not filled) and transports,
63      thermodynamic growth rates
64    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
65      leave input file unchanged. Affects results @ truncation level (cg2d match)
66      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
67      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
68      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
69      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
70    
71    checkpoint59h
72    o pkg/exf:
73      - improve vectorization by moving if-statement out of loops in
74        exf_mapfields, exf_radiation
75      - exf_bulkformulae.F: introduce 2D fields and vectorize code
76    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
77    o testreport:
78      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
79        monitor & update offline_exf_seaice exp. output.
80      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
81    o pkg/seaice:
82      - bug fix in the evp solver: boundary conditions were affected be
83        masking of zMax/zMin (changes results)
84      - minor bug fix in boundary conditions in seaice_calc_strainrates
85        (changes results for no_slip)
86      - seaice_lsr.F: make interpolation of eta dependent on boundaries
87      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
88      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
89        stress formulation and no-slip boundary conditions
90    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
91      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
92    o pkg/seaice: a first HSALT time stepping equation has been checked in
93    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
94      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
95      without requiring DO-IF statements
96    o pkg/thsice:
97      use continuous power-law function for partition of energy between lateral
98      melting/freezing and thinning/thickening ; old code using step function
99      still available with #undef THSICE_FRACEN_POWERLAW
100      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
101    o testreport: change AD testing : check against results/output_adm.txt
102      using same scripts as for forward test.
103    
104    checkpoint59g
105    o adjoint testing: in preparation for changing testreport:
106      - output format: cost and grad written on separated lines
107      - ad output results in directory "results" (instead of "results_ad")
108    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
109    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
110    o pkg/ecco: allow user defined cost function contributions
111    o testreport:
112      Allow to choose (per experiment) the list of tested output variables
113       and the main variable (used to issue a pass/FAIL ) ;
114      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
115      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
116      Also modify printing of summary:
117       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
118       b) echo the list of tested variables in the individual summary.txt of
119          each experiment.
120    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
121      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
122      (but still depend on the tile decompostion of the domain).
123    o pkg/seaice: change a discretization detail to make the B-grid code
124      "more symmetric". This change is likely to remove all "ridges/leads" that
125      where quasi-aligned with the grid in B-grid solutions. It may also be
126      the solution to the stress coupling issues with the B-grid.
127    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
128      remove .cvsignore from input dir. (since testreport no longer run here).
129    o pkg/thsice:
130     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
131     - fix reshaping of sea-ice just after advection:
132       melt all the ice only if ice-volume is too small.
133     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
134       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
135     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
136    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
137      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
138    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
139      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
140      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
141      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
142      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
143      -> update output.txt
144    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
145     this affects truncation error: -> update output.txt of exp:
146      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
147      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
148    
149    checkpoint59f
150    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
151    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
152      a bounded range (in forward mode)
153    o pkg/ecco, ctrl, autodiff and mom_common:
154     internal parameter controls, completements of implementations
155    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
156    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
157      (not seem any difference in testing results).
158    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
159       at face corners.
160    o pkg/generic_advdiff:
161     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
162      loop range indices for computing vertical advection tendency
163      and do the calculation in the interior only (no overlap) ;
164      for now, only implemented for SOM advection (to save CPU time).
165     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
166    o exch2 adjoint
167      First set of changes:
168      - add exch2 hand-written adjoint templates
169      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
170        This will require cleanup in pkg/autodiff/*.F
171        (changed routines currently kept separate in verif. code/)
172      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
173        that used to hide exch2 or cubed-sphere specific code
174        (commented via 'cph-exch2')
175    o pkg/seaice
176      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
177    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
178       output of global_ocean.cs32x15.thsice .
179    
180    checkpoint59e
181    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
182      for B-grid vector (not yet tested) and C-grid vector (<- only used
183      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
184    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
185      (#ifdef ALLOW_SALT_PLUME)
186    o gather_2d/scatter_2d: removed halo regions
187    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
188      scheme and the corresponding test case (under front_relax dir). For now,
189      only available with Skew-flux form and not yet tested in realistic set-up.
190      adjoint: store directives updated, but gradient checks deteriorated,
191      so maybe GM/Redi adjoint is now broken.
192    o seaice adjoint
193      * add AREA, HEFF, HSNOW as control variable
194        (should not change lab_sea results)
195      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
196    o pkg/seaice:
197      * added computation of saltFlux in seaice_growth;
198        For time being, sea ice salinity is assumed constant
199        contribution of snow flooding to freshening of sea ice is neglected.
200        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
201        defaults to 0.0 in order to maintain backward compatibility.
202        Typical values for SEAICE_salinity are 4 to 10 g/kg.
203      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
204      * added SEAICE_availHeatFrac, which specifies fraction of surface level
205        heat content used to melt or grow ice
206      * commented out cap of HICE: it helps keep ice thinner
207      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
208      * applied OBCS T/S mask to HEFFM sea ice mask
209    
210    checkpoint59d
211    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
212     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
213     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
214    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
215     and change default value of parameter "GM_Small_Number";
216     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
217       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
218       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
219    o pkg/ecco: cost function when applying pkg/smooth to controls
220    o pkg/ctrl: add forcingPrecond run time parameter
221    o pkg/seaice:
222     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
223     - fix bug in metric terms of u-equation in LSR solver (implicit part),
224       changes verification/lab_sea
225     - rearrange implicit part of u-equation in LSR solver to make it easier to
226       read, understand, and debug. This causes changes at the truncation level.
227     - fix (serious) bug in the boundary conditions (sign error in the implicit
228       part) of the LSR solver. Changes all LSR results.
229     - fixed problem with HSNOW initialization to avoid thick snow when AREA
230       is initilized with small values - does not change lab_sea results.
231     - added HsnowFile initialization capability
232    o pkg/smooth: addition to model/src and pkg/ctrl so allow
233     initialization of pkg/smooth and application to control vector
234    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
235    o dependencies: pkg/profiles requires pkg/cal
236    o pkg/profiles:
237     - added option ALLOW_PROFILES_GENERICGRID
238         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
239         that interpolation information (grid points and coefficients) is provided
240         within the netcdf input files.
241         -> sample matlab scripts can be found in MITgcm_contrib/gael
242         that allow you to prepare netcdf input files.
243     - also modified: cleaner include statements, cleaner error print statements,
244       cleaner stops when error, and more tests of the netcdf input files consistency.
245    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
246    o pkg/seaice:
247     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
248       requires a new routine: seaice_diagnostics_fill.F
249     - make sure that seaice does not move if not forced (pressure replacement
250       method, Hibler and Ip, 1995), changes results
251     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
252     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
253       It is turned off by default (=-1.), because it changes the results.
254     - make it possible to read AREA from a file, too.
255    
256    checkpoint59c
257    o add S/R and diagnostics for oceanic mixed-layer depth
258    o move GMRedi call after all vertical mixing schemes (including KPP)
259    o pkg/thsice:
260     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
261      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
262    o pkg/obcs:
263     - bug fix for balance code
264    o pkg/seaice:
265      - allow values of SEAICE_elasticParm > 1
266      - add new parameter SEAICE_evpTauRelax as an alternative
267        to SEAICE_elasticParm
268      - make lsr boundary conditions free slip (by default), changes result
269      - add code for no slip boundary conditions for lsr
270      - set minimum of zeta to zero (and not 4e8) (changes results)
271      - add a cap on AREA after advecting AREA if seaice_growth is not called
272    o change calculation of Visbeck K:
273      - no longer depend on tapering scheme; instead, compute slope (limited
274        by GM_maxSlope). this is equivalent to what was comuted before with
275        clipping or linear tappering.
276      - fix vertical averaging (wrong by 1/2 level)
277      - leave the old version (but will not be maintained) within
278        #ifdef OLD_VISBECK_CALC / #endif
279      - update output of exp. ideal_2D_oce
280    o change error catch in calc_r_star to improve vectorization
281    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
282      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
283    o adjoint:
284      Re-organized adjoint checkpointing according to Matt Mazloff
285      (but with modifs/completions/cleanups)
286      Storing is now bundled into large arrays to optimized I/O
287      (and second step in cleanup of the_main_loop)
288    
289    checkpoint59b
290    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
291      - export/import (between ocean & coupler) fields needed for ocean DIC.
292    o pkg/seaice:
293      - get rid of three more exchanges seaice_calc_viscosities (required
294        different loop boundaries in seaice_lsr and seaice_ocean_stress)
295      - bug fix in seaice_ocean_stress (update of lab_sea required)
296      - reduce loop boundaries to necessary minimum also in seaice_evp
297      - go back to the old way of computing deltaC/Z as the adjoint likes that
298        better
299    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
300      passive tracer to an Age Tracer) + update output.txt
301    o pkg/exf:
302      - implement A-grid / C-grid selection for wind-stress input files.
303      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
304      for now, in exf_bulk_largeyeager04.F only :
305      - change implementation for case where windspeed + 2. components wind-stress
306        are read-in. AND use rhoConstFresh to convert evap.
307    o pkg/seaice:
308      - use correct EXCH_UV for wind-forcing (on A-grid).
309      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
310        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
311    o pkg/exf:
312      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
313      EXF_INTERPOLATION:
314      - merge global_with_exf/code version of exf_interp_read.F
315        to the main code ;
316      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
317        reading the file ; Important: This options needs to be defined to recover
318        previous code.
319        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
320      - no longer loose real*8 precision along the way when using exf_iprec=64.
321    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
322      - change discretisation of evp-solver in order to avoid another exchange
323        (changes lab_sea) and clean up a little
324      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
325        help the adjoint (this also changes the results slightly)
326      - add a few "_d 0" where they had been missing in seaice_evp.F
327      - cleaning up: remove unused seaice_calc_rhs.F
328    o pkg/exf: some cleaning-up:
329      - change various "constants" into runtime parameters
330      - cleaned-up Large&Yeager04 routine which should eventually
331        replace exf_bulkformulae.F (changed names of S/R and CPP)
332        and merged various ALLOW_ATM_WIND options
333     only used with thsice pkg (in thsice_get_exf.F):
334      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
335        which are used when useStabilityFct_overIce=TRUE (= the default)
336      - change default values of ice & snow emissivity and scale downward LW
337        by ice & snow emissivity.
338    o pkg/thsice:
339     fix few little problems, in thsice_calc_thickn.F:
340      - growth vertically (and not laterally) if iceFrac == iceMaskMax
341      - melt only laterally if hIce < hThinIce (as the comments say)
342      and in thsice_extend.F:
343      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
344      - start to form ice as soon as the minimum ice-volume is reachable.
345     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
346      and cpl_aim+ocn
347    o pkg/kpp
348     - move computation of surface related input fields to KPP into a new
349       subroutine kpp_forcing_surf.F
350     - remove wrong (within bi,bj loops) EXCH calls.
351     - little cleaning (add argument myThid in last position, cvs header ...)
352     - for now, fix conservation problem by exchanging KPPviscAz (may not
353       be the best fix)
354    o pkg/seaice
355     - check for inconsistent evp parameter/cpp-flag combination
356     - remove leftover errIO flat for obsolete name list error handling
357    o OpenAD
358     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
359    
360    checkpoint59a
361    o pkg/seaice: some parameter clarifications and a little bit of clean up
362    o pkg/thsice: rename run-time parameters:
363       himin       -> hIceMin
364       himin0      -> hThinIce
365       hihig       -> hThickIce
366       i0          -> i0swFrac
367       transCoef   -> bMeltCoef
368       frac_energy -> fracMelting
369      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
370       with default values (for now) that do not change the results.
371      remove old version of thsice vars advection in pkg/seaice.
372    o in FFIELDS.h:
373      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
374      - make pLoad & sIceLoad always available (but still only used if
375         ATMOSPHERIC_LOADING is #define).
376    o pkg/kpp: replaced _KPP_RL with _RL
377    o bug fixes for vertical diffusivity computations when both KPP and
378        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
379        are no longer updating the vertical diffusivity array
380        (passed as argument) but are (re-) setting those arrays.
381    o pkg/seaice: fix bug in evp solver, while doing that
382      - change (improve?) discretization of stress computations for both
383        cgrid-lsr and evp solver
384      - add a new routine to compute strain rates
385      - the above changes lab_sea results
386      - add no slip conditions for evp solver (off by default), lsr-version
387        may follow
388      - fix exchange for shear at Z-points (does not change lab_sea)
389      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
390        (to force the user to pick a time step since there is not "safe" way
391        of choosing it)
392      - add principal stress diagnostics
393      - rearrange fields for evp a little to avoid having to call a: too many
394        exchanges and b: exchanges for stress trensor components which we do
395        not have.
396      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
397        of evp, complete rewrite for lsr case (latter is does not yet work
398        in all cases)
399    o pkg/kpp: add code to have mixing in shelf ice caverns
400      - add myThid to all kpp routines (long overdue)
401    
402    checkpoint59
403    o pkg/exf:
404      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
405        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
406      - move exf header files from lower_case.h to UPPER_CASE.h ;
407        add missing cvs Header & Name
408      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
409      - add namelist param. selectStressGridPosition, exf_monFreq
410      - retire many _CLIM routines, and remove data.exf_clim
411        + params moved to data.exf
412        + climsst, climsss now handled by exf_set_gen, i.e.
413          climss?period=0 refers to constant field,
414          climss?period=-12 to monthly forcing
415      - split up namelists in data.exf
416    o pkg/seaice:
417      - remove seaice_exch and seaice_exch_uv
418      - remove superfluous exchange of theta
419      - add myThid to seaice_budget_ocean/ice
420      - add new interface for atmospheric wind forcing (C-grid only)
421        + new routine
422        + two new field (taux, tauy for stress over ice)
423        + removed one global field (DAIRN) for C-grid case only
424    o pkg/thsise
425      - 2nd set of modifs for thsice adjoint in conjunction with exf
426    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
427    
428    checkpoint58y_post
429    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
430      vertical diffusivity, similar to that in MOM4; turned on using
431      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
432      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
433    o Added capability for 3D specification of background vertical diffusion
434      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
435      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
436      "data" file that contains the 3D vertical diffusivity coefficients.
437    o ice dynamics (pkg/seaice) with thsice thermodynamics:
438      - add code within pkg thsice to advect & diffuse sea-ice fields
439      similar to (and will replace) what has been added in  seaice_advdiff.F,
440      but: - conserving Mass, Heat & Salt.
441           - better when using non-linear advection scheme (not yet fully tested)
442           - can also be used in atmospheric set-up (for now, only the diffusion).
443    
444    checkpoint58x_post
445    o IO option for global-file compact format:
446      - add options when generating topology (utils/exch2/matlab-topology-generator)
447      - add I/O capability (pkg/mdsio).
448      - adapt utils/matlab/rdmds.m to read this format.
449      for now long-line format not yet supported by pkg/mdsio (& exch2).
450    o shelfice: add a few diagnostics
451    
452    checkpoint58w_post
453    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
454      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
455      (and replace horiVertRatio in NH code).
456      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
457                         and tutorial_plume_on_slope (sensitive to truncation)
458    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
459      directly to drive seaice model (C-grid only)
460    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
461     - reintroduce computation of wind from stress,
462     - compute tau (in exf_bulkformulae.F) from windstress averaged to
463       mass points to avoid tau = 0
464     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
465    o rdmnc.m: make it work with "global" files created with gluemnc
466    o rdmnc.m : some improvements in dealing with singleton dimension
467      (tested on all testreport mnc output files).
468    o genmake2: disable pkg/profiles if netcdf test fails.
469    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
470    o move call to cal_readparms up to make calendar parameters/variable available
471      to all packages
472    
473    checkpoint58v_post
474    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
475      useDynP_inEos_Zc tested.
476    o pkg/exf: changes to properly interpolate/mask/scale initial fields
477    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
478      and portions thereof.  See read_cs.txt for description and examples.
479    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
480      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
481      following the great-circle arc between those 2 points.
482    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
483      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
484    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
485     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
486     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
487     - still needs work (not working with some options ; efficiency to improve)
488       and serious testing.
489     - use this scheme for temperature & salinity in 2 advection test exp.:
490       advect_xy & advect_xz, respectively.
491    
492    checkpoint58u_post
493    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
494    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
495    o testreport: add option "-skipdir" to skip some test.
496    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
497      momentum calculation.
498    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
499    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
500      remove checkpoint.F and the_correction_step.F (no longer used);
501      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
502    o add option (linFSConserveTr) to correct for tracer source/sink due to
503      Linear Free surface
504    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
505    o pkg/thsice: fix reading mnc-pickups
506    
507    checkpoint58t_post
508    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
509    o pkg/mdsio:
510     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
511       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
512       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
513     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
514     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
515       either MDS_READ_FIELD or MDS_WRITE_FIELD )
516     - new S/R (to replace MDSWRITEMETA), which allows to write more
517       informations (variable names, time ...) to meta files.
518     - modify rdmds.m to give back the meta file content.
519    o pkg/diagnostics: change vertical interpolation to be safer, and more
520       flexible (define p-levels to interpolate to in data.diagnostics);
521      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
522       diagnostic pointer.
523    o pkg/seaice: more cleaning up of seaice_growth, added many comments
524    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
525    o fix multi-category seaice:
526     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
527       SEAICE_MULTICATEGORY
528     - fix short wave heat flux
529    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
530       and allow to use EVP solver. Change forward lab_sea: test both EVP
531       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
532    o Initial check-in of lab_sea adjoint
533      (very similar to natl_box_adjoint/code_seaice)
534      * used C-grid and EVP solver
535      * used KPP, GM/Redi
536      * uses inAdExact=.TRUE.
537      * gradient checks fail for both ADM and TLM
538        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
539        f.d. gradients actually seem more problematic than ADM, TLM gradients;
540        issue is related to forward mismatch between g77 an ifort
541    o pkg/seaice: overhaul of thermodynamics
542     - growth.F and groatb.F are replaced by new routine seaice_growth.F
543     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
544     - move a few global fields out of SEAICE.h into seaice_growth.F and
545       make them 2D (FICE/QNETO/ ...)
546     - remove FO (it is the same as QNETO)
547     - introduce a few local fields to avoid modifying external fields such
548       as atemp, etc.
549    
550    checkpoint58s_post
551    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
552      changed exf_set_gen.F so that
553        genperiod=0 means input file is one time-constant field and
554        genperiod=-12 means input file contains 12 monthly means
555    o CG2D: use pre-computed solver main-diagonal (stored in common block);
556      this affects truncation error ; generate new output file for exp. which
557      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
558        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
559        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
560        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
561        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
562        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
563    o start implementation of deep-atmosphere and anelastic formulation
564    o verification: remove 2nd copy of input files and use script "prepare_run"
565      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
566    o mom_common/vecinv/fluxform: fix a few initialisation isssues
567    o profiles: fix for multithreaded case
568    
569    o diagnostics: rename few diags:
570      s/'PRESSURE'/'RCENTER '/g
571      s/'TICE    '/'oceFreez'/g
572      s/'TAUX    '/'oceTAUX '/g
573      s/'TAUY    '/'oceTAUY '/g
574      s/'SWFLUX  '/'oceQsw  '/g
575      s/DIFx/DFxE/g
576      s/DIFy/DFyE/g
577      and add few ocean-forcing diagnostics:
578      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
579    o modifications to pkg/seaice/growth.F and budget.F, which change results of
580      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
581      as actual snow thickness.  It now refers everywhere to effective snow
582      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
583    
584    checkpoint58r_post
585    o modifications to pkg/seaice/growth.F, which change results of
586      lab_sea experiment: fixes pertain to melting snow over open water, to
587      masking EVAP under sea ice, and to using the correct AREA variable for
588      computations of EVAP, PRECIP, HSNOW, and GHEFF
589    o add ability to read bathy, salt, and theta using MNC (off by def)
590    o add flooding algorithm and advection of HSNOW for pkg/seaice;
591      both are turned off by default and do no change any results
592    o seaice advection with pkg/thsice: a step toward the use of non-linear
593      advection scheme, but #ifdef or commented out for now (requires more EXCH).
594    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
595      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
596      in natl_box (affects results @ truncation level: update output.txt)
597    o multi-threading and IO:
598      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
599      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
600        (needed to work with SingleCpuIO): tested in all verif. exp.
601    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
602      affects the results (but none of the verification test uses this scheme).
603    o Adding some pkg/diagnostics capability to pkg/seaice
604      (will certainly be subject to changes)
605    o ctrl: adding new control variables:
606      lwflux, lwdown, evap, snowprecip, apressure, runoff
607    
608    checkpoint58q_post
609    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
610      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
611      high_res_cube configuration by 4% on Columbia.
612    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
613      add (in global_with_exf/code) a version of EXF_INTERP_READ without
614      dynamical allocation (seems to work in multi-threaded).
615    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
616      single CPU io) so that TAF does not have to see EESUPPORT.h
617    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
618    
619    checkpoint58p_post
620    o obcs: stop if obcs is used with useCDscheme = .true.
621    o shelfice:
622     - fix a sign error so that no slip at shelfice interface works
623     - remove stop for combination non-hydrostatic code and shelfice. That does
624       not mean, that the results are correct, but at least they are numerically
625       stable
626    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
627    o added adjoint exch routined for all exch*3d* routines
628      and updated flow directives
629    
630    checkpoint58o_post
631    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
632      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
633    o change controling S/R for writing pickup file (new S/R do_write_pickup)
634      and clean-up reading/writing of pickup files.
635    o fix local version of read/write pickup (NH part) in rotating_tank/code
636    o simplify EXCH interface:
637     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
638     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
639    o added the regrid package
640    o shelfice:
641     - add a simple boundary layer scheme to reduce noise
642     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
643    
644    checkpoint58n_post
645    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
646       local variable (not in common block).
647    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
648      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
649      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
650        to work with SingleCpuIO.
651    o add "_d 0" to real constant of pkg/cfc subroutines ;
652       update exp. cfc_exemple & tutorial_cfc_offline output files.
653    o multi-threading and IO:
654      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
655        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
656      - barrier before and after reading.
657      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
658      - avoid using MDS_WRITELOCAL for LAND pkg output.
659      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
660        common-block variables ; Allows multi-threading with master-thread IO.
661    o change default MAX_NO_THREADS from 32 to 4 ;
662      and stop cleanly when MAX_NO_THREADS is too small.
663    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
664    
665    checkpoint58m_post
666    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
667       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
668    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
669       keep global_ocean.90x40x15 (for AD testing) with former secondary test
670       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
671    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
672        add MITgcm_tutorials (= code + all the tutorials)
673    o ecco, option to compute cost for total ssh (mean+anom)
674    o consistent with addition of ptracer and ssh in pkg/profiles
675    o profiles: adding ptracer and ssh
676    o testreport: change multi-test output-file name
677      (from output.txt.{name} to output.{name}.txt)
678    o profiles: now ok for mutli-tiles case
679    o seaice: add 4 parameters for different advection schemes for area,
680      (effective) seaice thickness, enthalphy, and snow height. Their default
681      is the standard parameter SEAICEadvScheme
682    o calc_gw:
683     - add cosFacU in zonal viscous flux (harmonic.visc.).
684     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
685       of tutorial_plume_on_slope.
686    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
687    o calc_gw: true flux-form, account for horizontal grid spacing.
688      update rotating_tank results, but not plume_on_slope (affected at
689      truncation level, 11 digits).
690    
691    checkpoint58l_post
692    o calc_gw:
693     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
694     - remove side-drag for now (need to fix it); update plume_on_slope results.
695     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
696    o commit code to make SST/SSS weights spatially variable
697      (based on either variable in-situ or variable initial T/S weights)
698    o pkg/ecco:
699      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
700        now based on horizontally varying weights wthetaLev, wsaltLev
701      * cost_averagesflags now returns year indices in addition to day, month
702      * sflux balance is performed on annual basis
703        (sflxumm, sfluxmm2, bal_sfluxmm)
704      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
705        including separate counting and multipliers
706    o pkg/rbcs
707      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
708    
709    checkpoint58k_post
710    o testreport:
711     - always build in dir. "build" (if not there, mkdir build instead of building
712       & running in input)
713     - run in dir run (if it exists), in build otherwise.
714     - call prepare_run (if input/prepare_run exists)
715     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
716    o pkg/exf modifications to interpolation and rotation routines for more
717       reasonable treatment of North Pole singularity: for tracers North Pole
718       value is set to northernmost zonal-mean value, for zonal velocity it is
719       set to zero, and for meridional velocity it is set to northernmost value.
720    o pkg/exf/exf_check_range.F
721     - add tile index to diagnostics and move stop statement to the very
722       end of the routine.
723    o pkg/diagnostics: (diagnostics_main_init.F)
724      define title of isomorphic variables according to the current config.
725    o pkg/thsice with pkg/seaice dynamics:
726    - fix domain of computation (interior only, required for exf) and do exchanges
727    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
728    o towards a standard way of dealing with multi-threading in MONITOR
729      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
730    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
731       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
732    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
733    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
734    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
735       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
736    o tracer advection:
737     - clean-up and simplify calc_common_factors.F
738     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
739       advection subroutine (but still not used within DST advection S/R)
740    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
741    
742    checkpoint58j_post
743    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
744      from file (collects calls previously in FORWARD_STEP)
745    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
746    o adjoint store dir. adjusted accordingly
747    o genmake2
748      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
749    
750    checkpoint58i_post
751    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
752      on wind stress (SEAICEstressFactor defaults to 1.)
753    o Total number of Timers is finite (<=40): comment out 2 non-essential one
754      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
755    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
756      on CS-grid: no longer loosing mass.
757    o exf & curvilinear-grid: no longer modify longitude xC & xG.
758  o pkg/ggl90: fix sloppy output and fix a bug  o pkg/ggl90: fix sloppy output and fix a bug
759  o pkg/seaice: added SEAICEuseEVPpickup parameter  o pkg/seaice: added SEAICEuseEVPpickup parameter
760    - Set to false in order to start EVP solver with    - Set to false in order to start EVP solver with
761      non-EVP pickup files when using SEAICEuseEVP      non-EVP pickup files when using SEAICEuseEVP
762      - fix sign error in diffusion in seaice_calc_rhs
763    
764  checkpoint58h_post  checkpoint58h_post
765  * Modifications for bottom topography control  * Modifications for bottom topography control

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