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revision 1.671 by jmc, Thu Jun 8 01:13:52 2006 UTC revision 1.889 by jmc, Tue Oct 9 02:43:45 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 add missing cvs $Header$ or $Name$ in eesupp/*, pkg/* & verification/code*
8    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
9    o add new diagnostics to seaice: advective, diffusive fluxes (only for
10      multidim-advection, for scheme 2 they are not filled) and transports,
11      thermodynamic growth rates
12    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
13      leave input file unchanged. Affects results @ truncation level (cg2d match)
14      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
15      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
16      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
17      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
18    
19    checkpoint59h
20    o pkg/exf:
21      - improve vectorization by moving if-statement out of loops in
22        exf_mapfields, exf_radiation
23      - exf_bulkformulae.F: introduce 2D fields and vectorize code
24    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
25    o testreport:
26      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
27        monitor & update offline_exf_seaice exp. output.
28      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
29    o pkg/seaice:
30      - bug fix in the evp solver: boundary conditions were affected be
31        masking of zMax/zMin (changes results)
32      - minor bug fix in boundary conditions in seaice_calc_strainrates
33        (changes results for no_slip)
34      - seaice_lsr.F: make interpolation of eta dependent on boundaries
35      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
36      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
37        stress formulation and no-slip boundary conditions
38    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
39      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
40    o pkg/seaice: a first HSALT time stepping equation has been checked in
41    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
42      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
43      without requiring DO-IF statements
44    o pkg/thsice:
45      use continuous power-law function for partition of energy between lateral
46      melting/freezing and thinning/thickening ; old code using step function
47      still available with #undef THSICE_FRACEN_POWERLAW
48      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
49    o testreport: change AD testing : check against results/output_adm.txt
50      using same scripts as for forward test.
51    
52    checkpoint59g
53    o adjoint testing: in preparation for changing testreport:
54      - output format: cost and grad written on separated lines
55      - ad output results in directory "results" (instead of "results_ad")
56    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
57    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
58    o pkg/ecco: allow user defined cost function contributions
59    o testreport:
60      Allow to choose (per experiment) the list of tested output variables
61       and the main variable (used to issue a pass/FAIL ) ;
62      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
63      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
64      Also modify printing of summary:
65       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
66       b) echo the list of tested variables in the individual summary.txt of
67          each experiment.
68    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
69      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
70      (but still depend on the tile decompostion of the domain).
71    o pkg/seaice: change a discretization detail to make the B-grid code
72      "more symmetric". This change is likely to remove all "ridges/leads" that
73      where quasi-aligned with the grid in B-grid solutions. It may also be
74      the solution to the stress coupling issues with the B-grid.
75    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
76      remove .cvsignore from input dir. (since testreport no longer run here).
77    o pkg/thsice:
78     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
79     - fix reshaping of sea-ice just after advection:
80       melt all the ice only if ice-volume is too small.
81     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
82       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
83     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
84    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
85      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
86    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
87      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
88      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
89      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
90      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
91      -> update output.txt
92    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
93     this affects truncation error: -> update output.txt of exp:
94      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
95      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
96    
97    checkpoint59f
98    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
99    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
100      a bounded range (in forward mode)
101    o pkg/ecco, ctrl, autodiff and mom_common:
102     internal parameter controls, completements of implementations
103    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
104    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
105      (not seem any difference in testing results).
106    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
107       at face corners.
108    o pkg/generic_advdiff:
109     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
110      loop range indices for computing vertical advection tendency
111      and do the calculation in the interior only (no overlap) ;
112      for now, only implemented for SOM advection (to save CPU time).
113     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
114    o exch2 adjoint
115      First set of changes:
116      - add exch2 hand-written adjoint templates
117      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
118        This will require cleanup in pkg/autodiff/*.F
119        (changed routines currently kept separate in verif. code/)
120      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
121        that used to hide exch2 or cubed-sphere specific code
122        (commented via 'cph-exch2')
123    o pkg/seaice
124      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
125    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
126       output of global_ocean.cs32x15.thsice .
127    
128    checkpoint59e
129    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
130      for B-grid vector (not yet tested) and C-grid vector (<- only used
131      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
132    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
133      (#ifdef ALLOW_SALT_PLUME)
134    o gather_2d/scatter_2d: removed halo regions
135    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
136      scheme and the corresponding test case (under front_relax dir). For now,
137      only available with Skew-flux form and not yet tested in realistic set-up.
138      adjoint: store directives updated, but gradient checks deteriorated,
139      so maybe GM/Redi adjoint is now broken.
140    o seaice adjoint
141      * add AREA, HEFF, HSNOW as control variable
142        (should not change lab_sea results)
143      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
144    o pkg/seaice:
145      * added computation of saltFlux in seaice_growth;
146        For time being, sea ice salinity is assumed constant
147        contribution of snow flooding to freshening of sea ice is neglected.
148        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
149        defaults to 0.0 in order to maintain backward compatibility.
150        Typical values for SEAICE_salinity are 4 to 10 g/kg.
151      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
152      * added SEAICE_availHeatFrac, which specifies fraction of surface level
153        heat content used to melt or grow ice
154      * commented out cap of HICE: it helps keep ice thinner
155      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
156      * applied OBCS T/S mask to HEFFM sea ice mask
157    
158    checkpoint59d
159    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
160     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
161     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
162    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
163     and change default value of parameter "GM_Small_Number";
164     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
165       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
166       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
167    o pkg/ecco: cost function when applying pkg/smooth to controls
168    o pkg/ctrl: add forcingPrecond run time parameter
169    o pkg/seaice:
170     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
171     - fix bug in metric terms of u-equation in LSR solver (implicit part),
172       changes verification/lab_sea
173     - rearrange implicit part of u-equation in LSR solver to make it easier to
174       read, understand, and debug. This causes changes at the truncation level.
175     - fix (serious) bug in the boundary conditions (sign error in the implicit
176       part) of the LSR solver. Changes all LSR results.
177     - fixed problem with HSNOW initialization to avoid thick snow when AREA
178       is initilized with small values - does not change lab_sea results.
179     - added HsnowFile initialization capability
180    o pkg/smooth: addition to model/src and pkg/ctrl so allow
181     initialization of pkg/smooth and application to control vector
182    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
183    o dependencies: pkg/profiles requires pkg/cal
184    o pkg/profiles:
185     - added option ALLOW_PROFILES_GENERICGRID
186         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
187         that interpolation information (grid points and coefficients) is provided
188         within the netcdf input files.
189         -> sample matlab scripts can be found in MITgcm_contrib/gael
190         that allow you to prepare netcdf input files.
191     - also modified: cleaner include statements, cleaner error print statements,
192       cleaner stops when error, and more tests of the netcdf input files consistency.
193    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
194    o pkg/seaice:
195     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
196       requires a new routine: seaice_diagnostics_fill.F
197     - make sure that seaice does not move if not forced (pressure replacement
198       method, Hibler and Ip, 1995), changes results
199     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
200     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
201       It is turned off by default (=-1.), because it changes the results.
202     - make it possible to read AREA from a file, too.
203    
204    checkpoint59c
205    o add S/R and diagnostics for oceanic mixed-layer depth
206    o move GMRedi call after all vertical mixing schemes (including KPP)
207    o pkg/thsice:
208     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
209      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
210    o pkg/obcs:
211     - bug fix for balance code
212    o pkg/seaice:
213      - allow values of SEAICE_elasticParm > 1
214      - add new parameter SEAICE_evpTauRelax as an alternative
215        to SEAICE_elasticParm
216      - make lsr boundary conditions free slip (by default), changes result
217      - add code for no slip boundary conditions for lsr
218      - set minimum of zeta to zero (and not 4e8) (changes results)
219      - add a cap on AREA after advecting AREA if seaice_growth is not called
220    o change calculation of Visbeck K:
221      - no longer depend on tapering scheme; instead, compute slope (limited
222        by GM_maxSlope). this is equivalent to what was comuted before with
223        clipping or linear tappering.
224      - fix vertical averaging (wrong by 1/2 level)
225      - leave the old version (but will not be maintained) within
226        #ifdef OLD_VISBECK_CALC / #endif
227      - update output of exp. ideal_2D_oce
228    o change error catch in calc_r_star to improve vectorization
229    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
230      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
231    o adjoint:
232      Re-organized adjoint checkpointing according to Matt Mazloff
233      (but with modifs/completions/cleanups)
234      Storing is now bundled into large arrays to optimized I/O
235      (and second step in cleanup of the_main_loop)
236    
237    checkpoint59b
238    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
239      - export/import (between ocean & coupler) fields needed for ocean DIC.
240    o pkg/seaice:
241      - get rid of three more exchanges seaice_calc_viscosities (required
242        different loop boundaries in seaice_lsr and seaice_ocean_stress)
243      - bug fix in seaice_ocean_stress (update of lab_sea required)
244      - reduce loop boundaries to necessary minimum also in seaice_evp
245      - go back to the old way of computing deltaC/Z as the adjoint likes that
246        better
247    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
248      passive tracer to an Age Tracer) + update output.txt
249    o pkg/exf:
250      - implement A-grid / C-grid selection for wind-stress input files.
251      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
252      for now, in exf_bulk_largeyeager04.F only :
253      - change implementation for case where windspeed + 2. components wind-stress
254        are read-in. AND use rhoConstFresh to convert evap.
255    o pkg/seaice:
256      - use correct EXCH_UV for wind-forcing (on A-grid).
257      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
258        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
259    o pkg/exf:
260      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
261      EXF_INTERPOLATION:
262      - merge global_with_exf/code version of exf_interp_read.F
263        to the main code ;
264      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
265        reading the file ; Important: This options needs to be defined to recover
266        previous code.
267        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
268      - no longer loose real*8 precision along the way when using exf_iprec=64.
269    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
270      - change discretisation of evp-solver in order to avoid another exchange
271        (changes lab_sea) and clean up a little
272      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
273        help the adjoint (this also changes the results slightly)
274      - add a few "_d 0" where they had been missing in seaice_evp.F
275      - cleaning up: remove unused seaice_calc_rhs.F
276    o pkg/exf: some cleaning-up:
277      - change various "constants" into runtime parameters
278      - cleaned-up Large&Yeager04 routine which should eventually
279        replace exf_bulkformulae.F (changed names of S/R and CPP)
280        and merged various ALLOW_ATM_WIND options
281     only used with thsice pkg (in thsice_get_exf.F):
282      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
283        which are used when useStabilityFct_overIce=TRUE (= the default)
284      - change default values of ice & snow emissivity and scale downward LW
285        by ice & snow emissivity.
286    o pkg/thsice:
287     fix few little problems, in thsice_calc_thickn.F:
288      - growth vertically (and not laterally) if iceFrac == iceMaskMax
289      - melt only laterally if hIce < hThinIce (as the comments say)
290      and in thsice_extend.F:
291      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
292      - start to form ice as soon as the minimum ice-volume is reachable.
293     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
294      and cpl_aim+ocn
295    o pkg/kpp
296     - move computation of surface related input fields to KPP into a new
297       subroutine kpp_forcing_surf.F
298     - remove wrong (within bi,bj loops) EXCH calls.
299     - little cleaning (add argument myThid in last position, cvs header ...)
300     - for now, fix conservation problem by exchanging KPPviscAz (may not
301       be the best fix)
302    o pkg/seaice
303     - check for inconsistent evp parameter/cpp-flag combination
304     - remove leftover errIO flat for obsolete name list error handling
305    o OpenAD
306     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
307    
308    checkpoint59a
309    o pkg/seaice: some parameter clarifications and a little bit of clean up
310    o pkg/thsice: rename run-time parameters:
311       himin       -> hIceMin
312       himin0      -> hThinIce
313       hihig       -> hThickIce
314       i0          -> i0swFrac
315       transCoef   -> bMeltCoef
316       frac_energy -> fracMelting
317      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
318       with default values (for now) that do not change the results.
319      remove old version of thsice vars advection in pkg/seaice.
320    o in FFIELDS.h:
321      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
322      - make pLoad & sIceLoad always available (but still only used if
323         ATMOSPHERIC_LOADING is #define).
324    o pkg/kpp: replaced _KPP_RL with _RL
325    o bug fixes for vertical diffusivity computations when both KPP and
326        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
327        are no longer updating the vertical diffusivity array
328        (passed as argument) but are (re-) setting those arrays.
329    o pkg/seaice: fix bug in evp solver, while doing that
330      - change (improve?) discretization of stress computations for both
331        cgrid-lsr and evp solver
332      - add a new routine to compute strain rates
333      - the above changes lab_sea results
334      - add no slip conditions for evp solver (off by default), lsr-version
335        may follow
336      - fix exchange for shear at Z-points (does not change lab_sea)
337      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
338        (to force the user to pick a time step since there is not "safe" way
339        of choosing it)
340      - add principal stress diagnostics
341      - rearrange fields for evp a little to avoid having to call a: too many
342        exchanges and b: exchanges for stress trensor components which we do
343        not have.
344      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
345        of evp, complete rewrite for lsr case (latter is does not yet work
346        in all cases)
347    o pkg/kpp: add code to have mixing in shelf ice caverns
348      - add myThid to all kpp routines (long overdue)
349    
350    checkpoint59
351    o pkg/exf:
352      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
353        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
354      - move exf header files from lower_case.h to UPPER_CASE.h ;
355        add missing cvs Header & Name
356      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
357      - add namelist param. selectStressGridPosition, exf_monFreq
358      - retire many _CLIM routines, and remove data.exf_clim
359        + params moved to data.exf
360        + climsst, climsss now handled by exf_set_gen, i.e.
361          climss?period=0 refers to constant field,
362          climss?period=-12 to monthly forcing
363      - split up namelists in data.exf
364    o pkg/seaice:
365      - remove seaice_exch and seaice_exch_uv
366      - remove superfluous exchange of theta
367      - add myThid to seaice_budget_ocean/ice
368      - add new interface for atmospheric wind forcing (C-grid only)
369        + new routine
370        + two new field (taux, tauy for stress over ice)
371        + removed one global field (DAIRN) for C-grid case only
372    o pkg/thsise
373      - 2nd set of modifs for thsice adjoint in conjunction with exf
374    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
375    
376    checkpoint58y_post
377    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
378      vertical diffusivity, similar to that in MOM4; turned on using
379      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
380      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
381    o Added capability for 3D specification of background vertical diffusion
382      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
383      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
384      "data" file that contains the 3D vertical diffusivity coefficients.
385    o ice dynamics (pkg/seaice) with thsice thermodynamics:
386      - add code within pkg thsice to advect & diffuse sea-ice fields
387      similar to (and will replace) what has been added in  seaice_advdiff.F,
388      but: - conserving Mass, Heat & Salt.
389           - better when using non-linear advection scheme (not yet fully tested)
390           - can also be used in atmospheric set-up (for now, only the diffusion).
391    
392    checkpoint58x_post
393    o IO option for global-file compact format:
394      - add options when generating topology (utils/exch2/matlab-topology-generator)
395      - add I/O capability (pkg/mdsio).
396      - adapt utils/matlab/rdmds.m to read this format.
397      for now long-line format not yet supported by pkg/mdsio (& exch2).
398    o shelfice: add a few diagnostics
399    
400    checkpoint58w_post
401    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
402      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
403      (and replace horiVertRatio in NH code).
404      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
405                         and tutorial_plume_on_slope (sensitive to truncation)
406    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
407      directly to drive seaice model (C-grid only)
408    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
409     - reintroduce computation of wind from stress,
410     - compute tau (in exf_bulkformulae.F) from windstress averaged to
411       mass points to avoid tau = 0
412     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
413    o rdmnc.m: make it work with "global" files created with gluemnc
414    o rdmnc.m : some improvements in dealing with singleton dimension
415      (tested on all testreport mnc output files).
416    o genmake2: disable pkg/profiles if netcdf test fails.
417    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
418    o move call to cal_readparms up to make calendar parameters/variable available
419      to all packages
420    
421    checkpoint58v_post
422    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
423      useDynP_inEos_Zc tested.
424    o pkg/exf: changes to properly interpolate/mask/scale initial fields
425    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
426      and portions thereof.  See read_cs.txt for description and examples.
427    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
428      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
429      following the great-circle arc between those 2 points.
430    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
431      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
432    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
433     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
434     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
435     - still needs work (not working with some options ; efficiency to improve)
436       and serious testing.
437     - use this scheme for temperature & salinity in 2 advection test exp.:
438       advect_xy & advect_xz, respectively.
439    
440    checkpoint58u_post
441    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
442    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
443    o testreport: add option "-skipdir" to skip some test.
444    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
445      momentum calculation.
446    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
447    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
448      remove checkpoint.F and the_correction_step.F (no longer used);
449      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
450    o add option (linFSConserveTr) to correct for tracer source/sink due to
451      Linear Free surface
452    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
453    o pkg/thsice: fix reading mnc-pickups
454    
455    checkpoint58t_post
456    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
457    o pkg/mdsio:
458     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
459       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
460       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
461     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
462     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
463       either MDS_READ_FIELD or MDS_WRITE_FIELD )
464     - new S/R (to replace MDSWRITEMETA), which allows to write more
465       informations (variable names, time ...) to meta files.
466     - modify rdmds.m to give back the meta file content.
467    o pkg/diagnostics: change vertical interpolation to be safer, and more
468       flexible (define p-levels to interpolate to in data.diagnostics);
469      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
470       diagnostic pointer.
471    o pkg/seaice: more cleaning up of seaice_growth, added many comments
472    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
473    o fix multi-category seaice:
474     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
475       SEAICE_MULTICATEGORY
476     - fix short wave heat flux
477    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
478       and allow to use EVP solver. Change forward lab_sea: test both EVP
479       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
480    o Initial check-in of lab_sea adjoint
481      (very similar to natl_box_adjoint/code_seaice)
482      * used C-grid and EVP solver
483      * used KPP, GM/Redi
484      * uses inAdExact=.TRUE.
485      * gradient checks fail for both ADM and TLM
486        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
487        f.d. gradients actually seem more problematic than ADM, TLM gradients;
488        issue is related to forward mismatch between g77 an ifort
489    o pkg/seaice: overhaul of thermodynamics
490     - growth.F and groatb.F are replaced by new routine seaice_growth.F
491     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
492     - move a few global fields out of SEAICE.h into seaice_growth.F and
493       make them 2D (FICE/QNETO/ ...)
494     - remove FO (it is the same as QNETO)
495     - introduce a few local fields to avoid modifying external fields such
496       as atemp, etc.
497    
498    checkpoint58s_post
499    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
500      changed exf_set_gen.F so that
501        genperiod=0 means input file is one time-constant field and
502        genperiod=-12 means input file contains 12 monthly means
503    o CG2D: use pre-computed solver main-diagonal (stored in common block);
504      this affects truncation error ; generate new output file for exp. which
505      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
506        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
507        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
508        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
509        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
510        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
511    o start implementation of deep-atmosphere and anelastic formulation
512    o verification: remove 2nd copy of input files and use script "prepare_run"
513      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
514    o mom_common/vecinv/fluxform: fix a few initialisation isssues
515    o profiles: fix for multithreaded case
516    
517    o diagnostics: rename few diags:
518      s/'PRESSURE'/'RCENTER '/g
519      s/'TICE    '/'oceFreez'/g
520      s/'TAUX    '/'oceTAUX '/g
521      s/'TAUY    '/'oceTAUY '/g
522      s/'SWFLUX  '/'oceQsw  '/g
523      s/DIFx/DFxE/g
524      s/DIFy/DFyE/g
525      and add few ocean-forcing diagnostics:
526      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
527    o modifications to pkg/seaice/growth.F and budget.F, which change results of
528      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
529      as actual snow thickness.  It now refers everywhere to effective snow
530      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
531    
532    checkpoint58r_post
533    o modifications to pkg/seaice/growth.F, which change results of
534      lab_sea experiment: fixes pertain to melting snow over open water, to
535      masking EVAP under sea ice, and to using the correct AREA variable for
536      computations of EVAP, PRECIP, HSNOW, and GHEFF
537    o add ability to read bathy, salt, and theta using MNC (off by def)
538    o add flooding algorithm and advection of HSNOW for pkg/seaice;
539      both are turned off by default and do no change any results
540    o seaice advection with pkg/thsice: a step toward the use of non-linear
541      advection scheme, but #ifdef or commented out for now (requires more EXCH).
542    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
543      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
544      in natl_box (affects results @ truncation level: update output.txt)
545    o multi-threading and IO:
546      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
547      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
548        (needed to work with SingleCpuIO): tested in all verif. exp.
549    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
550      affects the results (but none of the verification test uses this scheme).
551    o Adding some pkg/diagnostics capability to pkg/seaice
552      (will certainly be subject to changes)
553    o ctrl: adding new control variables:
554      lwflux, lwdown, evap, snowprecip, apressure, runoff
555    
556    checkpoint58q_post
557    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
558      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
559      high_res_cube configuration by 4% on Columbia.
560    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
561      add (in global_with_exf/code) a version of EXF_INTERP_READ without
562      dynamical allocation (seems to work in multi-threaded).
563    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
564      single CPU io) so that TAF does not have to see EESUPPORT.h
565    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
566    
567    checkpoint58p_post
568    o obcs: stop if obcs is used with useCDscheme = .true.
569    o shelfice:
570     - fix a sign error so that no slip at shelfice interface works
571     - remove stop for combination non-hydrostatic code and shelfice. That does
572       not mean, that the results are correct, but at least they are numerically
573       stable
574    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
575    o added adjoint exch routined for all exch*3d* routines
576      and updated flow directives
577    
578    checkpoint58o_post
579    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
580      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
581    o change controling S/R for writing pickup file (new S/R do_write_pickup)
582      and clean-up reading/writing of pickup files.
583    o fix local version of read/write pickup (NH part) in rotating_tank/code
584    o simplify EXCH interface:
585     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
586     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
587    o added the regrid package
588    o shelfice:
589     - add a simple boundary layer scheme to reduce noise
590     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
591    
592    checkpoint58n_post
593    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
594       local variable (not in common block).
595    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
596      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
597      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
598        to work with SingleCpuIO.
599    o add "_d 0" to real constant of pkg/cfc subroutines ;
600       update exp. cfc_exemple & tutorial_cfc_offline output files.
601    o multi-threading and IO:
602      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
603        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
604      - barrier before and after reading.
605      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
606      - avoid using MDS_WRITELOCAL for LAND pkg output.
607      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
608        common-block variables ; Allows multi-threading with master-thread IO.
609    o change default MAX_NO_THREADS from 32 to 4 ;
610      and stop cleanly when MAX_NO_THREADS is too small.
611    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
612    
613    checkpoint58m_post
614    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
615       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
616    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
617       keep global_ocean.90x40x15 (for AD testing) with former secondary test
618       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
619    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
620        add MITgcm_tutorials (= code + all the tutorials)
621    o ecco, option to compute cost for total ssh (mean+anom)
622    o consistent with addition of ptracer and ssh in pkg/profiles
623    o profiles: adding ptracer and ssh
624    o testreport: change multi-test output-file name
625      (from output.txt.{name} to output.{name}.txt)
626    o profiles: now ok for mutli-tiles case
627    o seaice: add 4 parameters for different advection schemes for area,
628      (effective) seaice thickness, enthalphy, and snow height. Their default
629      is the standard parameter SEAICEadvScheme
630    o calc_gw:
631     - add cosFacU in zonal viscous flux (harmonic.visc.).
632     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
633       of tutorial_plume_on_slope.
634    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
635    o calc_gw: true flux-form, account for horizontal grid spacing.
636      update rotating_tank results, but not plume_on_slope (affected at
637      truncation level, 11 digits).
638    
639    checkpoint58l_post
640    o calc_gw:
641     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
642     - remove side-drag for now (need to fix it); update plume_on_slope results.
643     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
644    o commit code to make SST/SSS weights spatially variable
645      (based on either variable in-situ or variable initial T/S weights)
646    o pkg/ecco:
647      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
648        now based on horizontally varying weights wthetaLev, wsaltLev
649      * cost_averagesflags now returns year indices in addition to day, month
650      * sflux balance is performed on annual basis
651        (sflxumm, sfluxmm2, bal_sfluxmm)
652      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
653        including separate counting and multipliers
654    o pkg/rbcs
655      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
656    
657    checkpoint58k_post
658    o testreport:
659     - always build in dir. "build" (if not there, mkdir build instead of building
660       & running in input)
661     - run in dir run (if it exists), in build otherwise.
662     - call prepare_run (if input/prepare_run exists)
663     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
664    o pkg/exf modifications to interpolation and rotation routines for more
665       reasonable treatment of North Pole singularity: for tracers North Pole
666       value is set to northernmost zonal-mean value, for zonal velocity it is
667       set to zero, and for meridional velocity it is set to northernmost value.
668    o pkg/exf/exf_check_range.F
669     - add tile index to diagnostics and move stop statement to the very
670       end of the routine.
671    o pkg/diagnostics: (diagnostics_main_init.F)
672      define title of isomorphic variables according to the current config.
673    o pkg/thsice with pkg/seaice dynamics:
674    - fix domain of computation (interior only, required for exf) and do exchanges
675    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
676    o towards a standard way of dealing with multi-threading in MONITOR
677      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
678    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
679       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
680    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
681    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
682    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
683       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
684    o tracer advection:
685     - clean-up and simplify calc_common_factors.F
686     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
687       advection subroutine (but still not used within DST advection S/R)
688    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
689    
690    checkpoint58j_post
691    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
692      from file (collects calls previously in FORWARD_STEP)
693    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
694    o adjoint store dir. adjusted accordingly
695    o genmake2
696      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
697    
698    checkpoint58i_post
699    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
700      on wind stress (SEAICEstressFactor defaults to 1.)
701    o Total number of Timers is finite (<=40): comment out 2 non-essential one
702      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
703    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
704      on CS-grid: no longer loosing mass.
705    o exf & curvilinear-grid: no longer modify longitude xC & xG.
706  o pkg/ggl90: fix sloppy output and fix a bug  o pkg/ggl90: fix sloppy output and fix a bug
707    o pkg/seaice: added SEAICEuseEVPpickup parameter
708      - Set to false in order to start EVP solver with
709        non-EVP pickup files when using SEAICEuseEVP
710      - fix sign error in diffusion in seaice_calc_rhs
711    
712  checkpoint58h_post  checkpoint58h_post
713  * Modifications for bottom topography control  * Modifications for bottom topography control

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