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revision 1.682 by jmc, Mon Jun 19 01:06:57 2006 UTC revision 1.895 by heimbach, Fri Oct 19 21:03:09 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 adjoint:
8      * fix multiDimAdvection adjoint
9        (partial recomputation problem by TAF for fVerT(:,:,kDown)
10        and comlev1 size definition (maxpass vs. max. number of tracers)
11      * verification/global_ocean.90x45x15 adjoint now tests
12        NLFS and multiDimAdvection using DST3 (=30)
13      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
14    o pkg/kpp: add "_d 0" to real constant (if missing);
15      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
16      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
17    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
18      for internal parameters related to restart process (formerly from PARAMS.h)
19      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
20    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
21      as argument. (only atm2d & obcs write_pickup have not yet been updated)
22    o pkg/monitor:
23      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
24      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
25      - account for deep Atmosphere factor and density factor (anelastic)
26    o added open boundary conditions capability for seaice HEFF and AREA
27    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
28      thermodynamics
29      - requires a little reorganization, which affects the testreport results
30        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
31        so that now the conservative form is tested
32      - add a few comments
33    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
34    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
35    o add new diagnostics to seaice: advective, diffusive fluxes (only for
36      multidim-advection, for scheme 2 they are not filled) and transports,
37      thermodynamic growth rates
38    o change units of EmPmR (inside the code) from m/s to kg/m2/s (mass flux) but
39      leave input file unchanged. Affects results @ truncation level (cg2d match)
40      and update output of experiments: lab_sea(6), global_ocean.90x40x15(10),
41      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
42      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
43      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
44    
45    checkpoint59h
46    o pkg/exf:
47      - improve vectorization by moving if-statement out of loops in
48        exf_mapfields, exf_radiation
49      - exf_bulkformulae.F: introduce 2D fields and vectorize code
50    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
51    o testreport:
52      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
53        monitor & update offline_exf_seaice exp. output.
54      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
55    o pkg/seaice:
56      - bug fix in the evp solver: boundary conditions were affected be
57        masking of zMax/zMin (changes results)
58      - minor bug fix in boundary conditions in seaice_calc_strainrates
59        (changes results for no_slip)
60      - seaice_lsr.F: make interpolation of eta dependent on boundaries
61      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
62      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
63        stress formulation and no-slip boundary conditions
64    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
65      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
66    o pkg/seaice: a first HSALT time stepping equation has been checked in
67    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
68      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
69      without requiring DO-IF statements
70    o pkg/thsice:
71      use continuous power-law function for partition of energy between lateral
72      melting/freezing and thinning/thickening ; old code using step function
73      still available with #undef THSICE_FRACEN_POWERLAW
74      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
75    o testreport: change AD testing : check against results/output_adm.txt
76      using same scripts as for forward test.
77    
78    checkpoint59g
79    o adjoint testing: in preparation for changing testreport:
80      - output format: cost and grad written on separated lines
81      - ad output results in directory "results" (instead of "results_ad")
82    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
83    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
84    o pkg/ecco: allow user defined cost function contributions
85    o testreport:
86      Allow to choose (per experiment) the list of tested output variables
87       and the main variable (used to issue a pass/FAIL ) ;
88      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
89      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
90      Also modify printing of summary:
91       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
92       b) echo the list of tested variables in the individual summary.txt of
93          each experiment.
94    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
95      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
96      (but still depend on the tile decompostion of the domain).
97    o pkg/seaice: change a discretization detail to make the B-grid code
98      "more symmetric". This change is likely to remove all "ridges/leads" that
99      where quasi-aligned with the grid in B-grid solutions. It may also be
100      the solution to the stress coupling issues with the B-grid.
101    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
102      remove .cvsignore from input dir. (since testreport no longer run here).
103    o pkg/thsice:
104     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
105     - fix reshaping of sea-ice just after advection:
106       melt all the ice only if ice-volume is too small.
107     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
108       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
109     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
110    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
111      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
112    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
113      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
114      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
115      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
116      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
117      -> update output.txt
118    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
119     this affects truncation error: -> update output.txt of exp:
120      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
121      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
122    
123    checkpoint59f
124    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
125    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
126      a bounded range (in forward mode)
127    o pkg/ecco, ctrl, autodiff and mom_common:
128     internal parameter controls, completements of implementations
129    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
130    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
131      (not seem any difference in testing results).
132    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
133       at face corners.
134    o pkg/generic_advdiff:
135     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
136      loop range indices for computing vertical advection tendency
137      and do the calculation in the interior only (no overlap) ;
138      for now, only implemented for SOM advection (to save CPU time).
139     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
140    o exch2 adjoint
141      First set of changes:
142      - add exch2 hand-written adjoint templates
143      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
144        This will require cleanup in pkg/autodiff/*.F
145        (changed routines currently kept separate in verif. code/)
146      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
147        that used to hide exch2 or cubed-sphere specific code
148        (commented via 'cph-exch2')
149    o pkg/seaice
150      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
151    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
152       output of global_ocean.cs32x15.thsice .
153    
154    checkpoint59e
155    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
156      for B-grid vector (not yet tested) and C-grid vector (<- only used
157      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
158    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
159      (#ifdef ALLOW_SALT_PLUME)
160    o gather_2d/scatter_2d: removed halo regions
161    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
162      scheme and the corresponding test case (under front_relax dir). For now,
163      only available with Skew-flux form and not yet tested in realistic set-up.
164      adjoint: store directives updated, but gradient checks deteriorated,
165      so maybe GM/Redi adjoint is now broken.
166    o seaice adjoint
167      * add AREA, HEFF, HSNOW as control variable
168        (should not change lab_sea results)
169      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
170    o pkg/seaice:
171      * added computation of saltFlux in seaice_growth;
172        For time being, sea ice salinity is assumed constant
173        contribution of snow flooding to freshening of sea ice is neglected.
174        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
175        defaults to 0.0 in order to maintain backward compatibility.
176        Typical values for SEAICE_salinity are 4 to 10 g/kg.
177      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
178      * added SEAICE_availHeatFrac, which specifies fraction of surface level
179        heat content used to melt or grow ice
180      * commented out cap of HICE: it helps keep ice thinner
181      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
182      * applied OBCS T/S mask to HEFFM sea ice mask
183    
184    checkpoint59d
185    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
186     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
187     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
188    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
189     and change default value of parameter "GM_Small_Number";
190     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
191       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
192       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
193    o pkg/ecco: cost function when applying pkg/smooth to controls
194    o pkg/ctrl: add forcingPrecond run time parameter
195    o pkg/seaice:
196     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
197     - fix bug in metric terms of u-equation in LSR solver (implicit part),
198       changes verification/lab_sea
199     - rearrange implicit part of u-equation in LSR solver to make it easier to
200       read, understand, and debug. This causes changes at the truncation level.
201     - fix (serious) bug in the boundary conditions (sign error in the implicit
202       part) of the LSR solver. Changes all LSR results.
203     - fixed problem with HSNOW initialization to avoid thick snow when AREA
204       is initilized with small values - does not change lab_sea results.
205     - added HsnowFile initialization capability
206    o pkg/smooth: addition to model/src and pkg/ctrl so allow
207     initialization of pkg/smooth and application to control vector
208    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
209    o dependencies: pkg/profiles requires pkg/cal
210    o pkg/profiles:
211     - added option ALLOW_PROFILES_GENERICGRID
212         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
213         that interpolation information (grid points and coefficients) is provided
214         within the netcdf input files.
215         -> sample matlab scripts can be found in MITgcm_contrib/gael
216         that allow you to prepare netcdf input files.
217     - also modified: cleaner include statements, cleaner error print statements,
218       cleaner stops when error, and more tests of the netcdf input files consistency.
219    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
220    o pkg/seaice:
221     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
222       requires a new routine: seaice_diagnostics_fill.F
223     - make sure that seaice does not move if not forced (pressure replacement
224       method, Hibler and Ip, 1995), changes results
225     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
226     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
227       It is turned off by default (=-1.), because it changes the results.
228     - make it possible to read AREA from a file, too.
229    
230    checkpoint59c
231    o add S/R and diagnostics for oceanic mixed-layer depth
232    o move GMRedi call after all vertical mixing schemes (including KPP)
233    o pkg/thsice:
234     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
235      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
236    o pkg/obcs:
237     - bug fix for balance code
238    o pkg/seaice:
239      - allow values of SEAICE_elasticParm > 1
240      - add new parameter SEAICE_evpTauRelax as an alternative
241        to SEAICE_elasticParm
242      - make lsr boundary conditions free slip (by default), changes result
243      - add code for no slip boundary conditions for lsr
244      - set minimum of zeta to zero (and not 4e8) (changes results)
245      - add a cap on AREA after advecting AREA if seaice_growth is not called
246    o change calculation of Visbeck K:
247      - no longer depend on tapering scheme; instead, compute slope (limited
248        by GM_maxSlope). this is equivalent to what was comuted before with
249        clipping or linear tappering.
250      - fix vertical averaging (wrong by 1/2 level)
251      - leave the old version (but will not be maintained) within
252        #ifdef OLD_VISBECK_CALC / #endif
253      - update output of exp. ideal_2D_oce
254    o change error catch in calc_r_star to improve vectorization
255    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
256      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
257    o adjoint:
258      Re-organized adjoint checkpointing according to Matt Mazloff
259      (but with modifs/completions/cleanups)
260      Storing is now bundled into large arrays to optimized I/O
261      (and second step in cleanup of the_main_loop)
262    
263    checkpoint59b
264    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
265      - export/import (between ocean & coupler) fields needed for ocean DIC.
266    o pkg/seaice:
267      - get rid of three more exchanges seaice_calc_viscosities (required
268        different loop boundaries in seaice_lsr and seaice_ocean_stress)
269      - bug fix in seaice_ocean_stress (update of lab_sea required)
270      - reduce loop boundaries to necessary minimum also in seaice_evp
271      - go back to the old way of computing deltaC/Z as the adjoint likes that
272        better
273    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
274      passive tracer to an Age Tracer) + update output.txt
275    o pkg/exf:
276      - implement A-grid / C-grid selection for wind-stress input files.
277      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
278      for now, in exf_bulk_largeyeager04.F only :
279      - change implementation for case where windspeed + 2. components wind-stress
280        are read-in. AND use rhoConstFresh to convert evap.
281    o pkg/seaice:
282      - use correct EXCH_UV for wind-forcing (on A-grid).
283      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
284        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
285    o pkg/exf:
286      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
287      EXF_INTERPOLATION:
288      - merge global_with_exf/code version of exf_interp_read.F
289        to the main code ;
290      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
291        reading the file ; Important: This options needs to be defined to recover
292        previous code.
293        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
294      - no longer loose real*8 precision along the way when using exf_iprec=64.
295    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
296      - change discretisation of evp-solver in order to avoid another exchange
297        (changes lab_sea) and clean up a little
298      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
299        help the adjoint (this also changes the results slightly)
300      - add a few "_d 0" where they had been missing in seaice_evp.F
301      - cleaning up: remove unused seaice_calc_rhs.F
302    o pkg/exf: some cleaning-up:
303      - change various "constants" into runtime parameters
304      - cleaned-up Large&Yeager04 routine which should eventually
305        replace exf_bulkformulae.F (changed names of S/R and CPP)
306        and merged various ALLOW_ATM_WIND options
307     only used with thsice pkg (in thsice_get_exf.F):
308      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
309        which are used when useStabilityFct_overIce=TRUE (= the default)
310      - change default values of ice & snow emissivity and scale downward LW
311        by ice & snow emissivity.
312    o pkg/thsice:
313     fix few little problems, in thsice_calc_thickn.F:
314      - growth vertically (and not laterally) if iceFrac == iceMaskMax
315      - melt only laterally if hIce < hThinIce (as the comments say)
316      and in thsice_extend.F:
317      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
318      - start to form ice as soon as the minimum ice-volume is reachable.
319     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
320      and cpl_aim+ocn
321    o pkg/kpp
322     - move computation of surface related input fields to KPP into a new
323       subroutine kpp_forcing_surf.F
324     - remove wrong (within bi,bj loops) EXCH calls.
325     - little cleaning (add argument myThid in last position, cvs header ...)
326     - for now, fix conservation problem by exchanging KPPviscAz (may not
327       be the best fix)
328    o pkg/seaice
329     - check for inconsistent evp parameter/cpp-flag combination
330     - remove leftover errIO flat for obsolete name list error handling
331    o OpenAD
332     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
333    
334    checkpoint59a
335    o pkg/seaice: some parameter clarifications and a little bit of clean up
336    o pkg/thsice: rename run-time parameters:
337       himin       -> hIceMin
338       himin0      -> hThinIce
339       hihig       -> hThickIce
340       i0          -> i0swFrac
341       transCoef   -> bMeltCoef
342       frac_energy -> fracMelting
343      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
344       with default values (for now) that do not change the results.
345      remove old version of thsice vars advection in pkg/seaice.
346    o in FFIELDS.h:
347      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
348      - make pLoad & sIceLoad always available (but still only used if
349         ATMOSPHERIC_LOADING is #define).
350    o pkg/kpp: replaced _KPP_RL with _RL
351    o bug fixes for vertical diffusivity computations when both KPP and
352        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
353        are no longer updating the vertical diffusivity array
354        (passed as argument) but are (re-) setting those arrays.
355    o pkg/seaice: fix bug in evp solver, while doing that
356      - change (improve?) discretization of stress computations for both
357        cgrid-lsr and evp solver
358      - add a new routine to compute strain rates
359      - the above changes lab_sea results
360      - add no slip conditions for evp solver (off by default), lsr-version
361        may follow
362      - fix exchange for shear at Z-points (does not change lab_sea)
363      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
364        (to force the user to pick a time step since there is not "safe" way
365        of choosing it)
366      - add principal stress diagnostics
367      - rearrange fields for evp a little to avoid having to call a: too many
368        exchanges and b: exchanges for stress trensor components which we do
369        not have.
370      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
371        of evp, complete rewrite for lsr case (latter is does not yet work
372        in all cases)
373    o pkg/kpp: add code to have mixing in shelf ice caverns
374      - add myThid to all kpp routines (long overdue)
375    
376    checkpoint59
377    o pkg/exf:
378      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
379        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
380      - move exf header files from lower_case.h to UPPER_CASE.h ;
381        add missing cvs Header & Name
382      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
383      - add namelist param. selectStressGridPosition, exf_monFreq
384      - retire many _CLIM routines, and remove data.exf_clim
385        + params moved to data.exf
386        + climsst, climsss now handled by exf_set_gen, i.e.
387          climss?period=0 refers to constant field,
388          climss?period=-12 to monthly forcing
389      - split up namelists in data.exf
390    o pkg/seaice:
391      - remove seaice_exch and seaice_exch_uv
392      - remove superfluous exchange of theta
393      - add myThid to seaice_budget_ocean/ice
394      - add new interface for atmospheric wind forcing (C-grid only)
395        + new routine
396        + two new field (taux, tauy for stress over ice)
397        + removed one global field (DAIRN) for C-grid case only
398    o pkg/thsise
399      - 2nd set of modifs for thsice adjoint in conjunction with exf
400    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
401    
402    checkpoint58y_post
403    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
404      vertical diffusivity, similar to that in MOM4; turned on using
405      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
406      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
407    o Added capability for 3D specification of background vertical diffusion
408      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
409      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
410      "data" file that contains the 3D vertical diffusivity coefficients.
411    o ice dynamics (pkg/seaice) with thsice thermodynamics:
412      - add code within pkg thsice to advect & diffuse sea-ice fields
413      similar to (and will replace) what has been added in  seaice_advdiff.F,
414      but: - conserving Mass, Heat & Salt.
415           - better when using non-linear advection scheme (not yet fully tested)
416           - can also be used in atmospheric set-up (for now, only the diffusion).
417    
418    checkpoint58x_post
419    o IO option for global-file compact format:
420      - add options when generating topology (utils/exch2/matlab-topology-generator)
421      - add I/O capability (pkg/mdsio).
422      - adapt utils/matlab/rdmds.m to read this format.
423      for now long-line format not yet supported by pkg/mdsio (& exch2).
424    o shelfice: add a few diagnostics
425    
426    checkpoint58w_post
427    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
428      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
429      (and replace horiVertRatio in NH code).
430      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
431                         and tutorial_plume_on_slope (sensitive to truncation)
432    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
433      directly to drive seaice model (C-grid only)
434    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
435     - reintroduce computation of wind from stress,
436     - compute tau (in exf_bulkformulae.F) from windstress averaged to
437       mass points to avoid tau = 0
438     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
439    o rdmnc.m: make it work with "global" files created with gluemnc
440    o rdmnc.m : some improvements in dealing with singleton dimension
441      (tested on all testreport mnc output files).
442    o genmake2: disable pkg/profiles if netcdf test fails.
443    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
444    o move call to cal_readparms up to make calendar parameters/variable available
445      to all packages
446    
447    checkpoint58v_post
448    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
449      useDynP_inEos_Zc tested.
450    o pkg/exf: changes to properly interpolate/mask/scale initial fields
451    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
452      and portions thereof.  See read_cs.txt for description and examples.
453    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
454      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
455      following the great-circle arc between those 2 points.
456    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
457      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
458    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
459     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
460     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
461     - still needs work (not working with some options ; efficiency to improve)
462       and serious testing.
463     - use this scheme for temperature & salinity in 2 advection test exp.:
464       advect_xy & advect_xz, respectively.
465    
466    checkpoint58u_post
467    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
468    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
469    o testreport: add option "-skipdir" to skip some test.
470    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
471      momentum calculation.
472    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
473    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
474      remove checkpoint.F and the_correction_step.F (no longer used);
475      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
476    o add option (linFSConserveTr) to correct for tracer source/sink due to
477      Linear Free surface
478    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
479    o pkg/thsice: fix reading mnc-pickups
480    
481    checkpoint58t_post
482    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
483    o pkg/mdsio:
484     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
485       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
486       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
487     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
488     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
489       either MDS_READ_FIELD or MDS_WRITE_FIELD )
490     - new S/R (to replace MDSWRITEMETA), which allows to write more
491       informations (variable names, time ...) to meta files.
492     - modify rdmds.m to give back the meta file content.
493    o pkg/diagnostics: change vertical interpolation to be safer, and more
494       flexible (define p-levels to interpolate to in data.diagnostics);
495      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
496       diagnostic pointer.
497    o pkg/seaice: more cleaning up of seaice_growth, added many comments
498    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
499    o fix multi-category seaice:
500     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
501       SEAICE_MULTICATEGORY
502     - fix short wave heat flux
503    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
504       and allow to use EVP solver. Change forward lab_sea: test both EVP
505       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
506    o Initial check-in of lab_sea adjoint
507      (very similar to natl_box_adjoint/code_seaice)
508      * used C-grid and EVP solver
509      * used KPP, GM/Redi
510      * uses inAdExact=.TRUE.
511      * gradient checks fail for both ADM and TLM
512        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
513        f.d. gradients actually seem more problematic than ADM, TLM gradients;
514        issue is related to forward mismatch between g77 an ifort
515    o pkg/seaice: overhaul of thermodynamics
516     - growth.F and groatb.F are replaced by new routine seaice_growth.F
517     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
518     - move a few global fields out of SEAICE.h into seaice_growth.F and
519       make them 2D (FICE/QNETO/ ...)
520     - remove FO (it is the same as QNETO)
521     - introduce a few local fields to avoid modifying external fields such
522       as atemp, etc.
523    
524    checkpoint58s_post
525    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
526      changed exf_set_gen.F so that
527        genperiod=0 means input file is one time-constant field and
528        genperiod=-12 means input file contains 12 monthly means
529    o CG2D: use pre-computed solver main-diagonal (stored in common block);
530      this affects truncation error ; generate new output file for exp. which
531      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
532        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
533        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
534        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
535        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
536        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
537    o start implementation of deep-atmosphere and anelastic formulation
538    o verification: remove 2nd copy of input files and use script "prepare_run"
539      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
540    o mom_common/vecinv/fluxform: fix a few initialisation isssues
541    o profiles: fix for multithreaded case
542    
543    o diagnostics: rename few diags:
544      s/'PRESSURE'/'RCENTER '/g
545      s/'TICE    '/'oceFreez'/g
546      s/'TAUX    '/'oceTAUX '/g
547      s/'TAUY    '/'oceTAUY '/g
548      s/'SWFLUX  '/'oceQsw  '/g
549      s/DIFx/DFxE/g
550      s/DIFy/DFyE/g
551      and add few ocean-forcing diagnostics:
552      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
553    o modifications to pkg/seaice/growth.F and budget.F, which change results of
554      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
555      as actual snow thickness.  It now refers everywhere to effective snow
556      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
557    
558    checkpoint58r_post
559    o modifications to pkg/seaice/growth.F, which change results of
560      lab_sea experiment: fixes pertain to melting snow over open water, to
561      masking EVAP under sea ice, and to using the correct AREA variable for
562      computations of EVAP, PRECIP, HSNOW, and GHEFF
563    o add ability to read bathy, salt, and theta using MNC (off by def)
564    o add flooding algorithm and advection of HSNOW for pkg/seaice;
565      both are turned off by default and do no change any results
566    o seaice advection with pkg/thsice: a step toward the use of non-linear
567      advection scheme, but #ifdef or commented out for now (requires more EXCH).
568    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
569      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
570      in natl_box (affects results @ truncation level: update output.txt)
571    o multi-threading and IO:
572      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
573      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
574        (needed to work with SingleCpuIO): tested in all verif. exp.
575    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
576      affects the results (but none of the verification test uses this scheme).
577    o Adding some pkg/diagnostics capability to pkg/seaice
578      (will certainly be subject to changes)
579    o ctrl: adding new control variables:
580      lwflux, lwdown, evap, snowprecip, apressure, runoff
581    
582    checkpoint58q_post
583    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
584      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
585      high_res_cube configuration by 4% on Columbia.
586    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
587      add (in global_with_exf/code) a version of EXF_INTERP_READ without
588      dynamical allocation (seems to work in multi-threaded).
589    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
590      single CPU io) so that TAF does not have to see EESUPPORT.h
591    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
592    
593    checkpoint58p_post
594    o obcs: stop if obcs is used with useCDscheme = .true.
595    o shelfice:
596     - fix a sign error so that no slip at shelfice interface works
597     - remove stop for combination non-hydrostatic code and shelfice. That does
598       not mean, that the results are correct, but at least they are numerically
599       stable
600    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
601    o added adjoint exch routined for all exch*3d* routines
602      and updated flow directives
603    
604    checkpoint58o_post
605    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
606      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
607    o change controling S/R for writing pickup file (new S/R do_write_pickup)
608      and clean-up reading/writing of pickup files.
609    o fix local version of read/write pickup (NH part) in rotating_tank/code
610    o simplify EXCH interface:
611     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
612     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
613    o added the regrid package
614    o shelfice:
615     - add a simple boundary layer scheme to reduce noise
616     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
617    
618    checkpoint58n_post
619    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
620       local variable (not in common block).
621    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
622      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
623      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
624        to work with SingleCpuIO.
625    o add "_d 0" to real constant of pkg/cfc subroutines ;
626       update exp. cfc_exemple & tutorial_cfc_offline output files.
627    o multi-threading and IO:
628      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
629        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
630      - barrier before and after reading.
631      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
632      - avoid using MDS_WRITELOCAL for LAND pkg output.
633      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
634        common-block variables ; Allows multi-threading with master-thread IO.
635    o change default MAX_NO_THREADS from 32 to 4 ;
636      and stop cleanly when MAX_NO_THREADS is too small.
637    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
638    
639    checkpoint58m_post
640    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
641       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
642    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
643       keep global_ocean.90x40x15 (for AD testing) with former secondary test
644       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
645    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
646        add MITgcm_tutorials (= code + all the tutorials)
647    o ecco, option to compute cost for total ssh (mean+anom)
648    o consistent with addition of ptracer and ssh in pkg/profiles
649    o profiles: adding ptracer and ssh
650    o testreport: change multi-test output-file name
651      (from output.txt.{name} to output.{name}.txt)
652    o profiles: now ok for mutli-tiles case
653    o seaice: add 4 parameters for different advection schemes for area,
654      (effective) seaice thickness, enthalphy, and snow height. Their default
655      is the standard parameter SEAICEadvScheme
656    o calc_gw:
657     - add cosFacU in zonal viscous flux (harmonic.visc.).
658     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
659       of tutorial_plume_on_slope.
660    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
661    o calc_gw: true flux-form, account for horizontal grid spacing.
662      update rotating_tank results, but not plume_on_slope (affected at
663      truncation level, 11 digits).
664    
665    checkpoint58l_post
666    o calc_gw:
667     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
668     - remove side-drag for now (need to fix it); update plume_on_slope results.
669     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
670    o commit code to make SST/SSS weights spatially variable
671      (based on either variable in-situ or variable initial T/S weights)
672    o pkg/ecco:
673      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
674        now based on horizontally varying weights wthetaLev, wsaltLev
675      * cost_averagesflags now returns year indices in addition to day, month
676      * sflux balance is performed on annual basis
677        (sflxumm, sfluxmm2, bal_sfluxmm)
678      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
679        including separate counting and multipliers
680    o pkg/rbcs
681      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
682    
683    checkpoint58k_post
684    o testreport:
685     - always build in dir. "build" (if not there, mkdir build instead of building
686       & running in input)
687     - run in dir run (if it exists), in build otherwise.
688     - call prepare_run (if input/prepare_run exists)
689     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
690    o pkg/exf modifications to interpolation and rotation routines for more
691       reasonable treatment of North Pole singularity: for tracers North Pole
692       value is set to northernmost zonal-mean value, for zonal velocity it is
693       set to zero, and for meridional velocity it is set to northernmost value.
694    o pkg/exf/exf_check_range.F
695     - add tile index to diagnostics and move stop statement to the very
696       end of the routine.
697    o pkg/diagnostics: (diagnostics_main_init.F)
698      define title of isomorphic variables according to the current config.
699    o pkg/thsice with pkg/seaice dynamics:
700    - fix domain of computation (interior only, required for exf) and do exchanges
701    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
702    o towards a standard way of dealing with multi-threading in MONITOR
703      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
704    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
705       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
706    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
707    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
708    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
709       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
710  o tracer advection:  o tracer advection:
711   - clean-up and simplify calc_common_factors.F   - clean-up and simplify calc_common_factors.F
712   - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer   - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer

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