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revision 1.778 by mlosch, Wed Mar 14 15:44:24 2007 UTC revision 1.954 by jmc, Sat Feb 9 16:34:49 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59n
8    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
9      number in dedicate array "hdiag":
10      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
11        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
12      - many small changes (integer format) for large number of diagnostics
13      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
14        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
15    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
16      usingSphericalGrid, this allows to define the rotated grid coordinates
17      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
18      geographical coordinates according to the inverse of the rotation defined
19      by the Euler angles, so that Coriolis parameter and online-interpolation by
20      exf works with the geographical coordinates on XC/YC/XG/YG.
21      Naturally, this feature does not work with all packages, so some
22      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
23      profiles), because there the coordinates are assumed to be regular
24      spherical grid coordinates.
25    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
26      - introduce isopycnal diffusion coefficient control.
27    o tools/adjoint_options:
28      - additional control vector components.
29    o pkg/mnc: have mnc create marginally meaning full coordinate variables
30      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
31    o pkg/mypackage:
32      - add example of read/write pickup for state-var ;
33      - add entry points to the main code for state-vars diags & write-pickup.
34    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
35      transitions for useExfYearlyFields
36      - add new subroutine that determines the file to read from for
37        use*YearlyFields = .TRUE. and .FALSE.
38      - add a verification experiment to global_with_exf that tests
39        useExfYearlyFields with USE_EXF_INTERPOLATION defined
40    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
41      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
42      subroutines (which could be generated from a template, because they are
43      almost identical), for now they are included in obcs_prescribe_read.F for
44      simplicity
45    o pkg/exf:
46      - add a little more diagnostic to exf_interp_read (in analogy to
47        mds_read_field, can be turned off with debugLevel < debugLevA=1)
48      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
49        ugly but fast by unrolling short inner loops, inserting a unroll=8
50        directive in routine lagran, and splitting a loop and making do while the
51        outermost loop (the latter requires the intoduction of index arrays)
52    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
53    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
54      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
55    o verification/seaice_obcs: updated for restart test and latest options
56    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
57      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
58      for now this is only available for the C-grid code and also within
59      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
60    
61    checkpoint59m
62    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
63      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
64    o gad_som : fix flux output (& diagnostics) to have same units as other  
65      advection scheme fluxes (was previously multiplied by deltaT).  
66    o added verification/seaice_obcs both to test seaice open boundaries
67      and to provide an example matlab scrpt for generating them
68    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
69    o pkg/salt_plume: clean up salt_plume_frac.F to
70      remove redundancy in PlumeMethod 1 and 4
71    o pkg/kpp: added saltplume diagnostics
72    o pkg/obcs and pkg/seaice:
73      - do not set uice and vice to zero when OB*icefile are unspecified
74      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
75      - moved seaice tracer obcs after call to seaice_growth
76    o pkg/salt_plume: added various options for salt plume depth
77      criterion and for vertical distribution of the salt
78    
79    checkpoint59l
80    o pkg/ptracers: new version of ptracers pickup:
81      read meta file and write only fields which are needed to restart.
82      ( same logic as main pickup file ; also using pickupStrictlyMatch )
83    o pkg/seaice:
84      - add timescale for melting due to warm mixed layer as a means of
85        setting SEAICE_availHeatFrac more conveniently
86      - add a CPP-flag/runtime parameter check for flooding algorithm
87      - reformulated availHeat in seaice_growth.F to be independent of AREA
88    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
89      unit changes
90    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
91    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
92      SX vector computer.
93    o pkg/seaice:
94      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
95        seaice forcing fields can now be read only through pkg/exf
96      - removed some unused halos
97    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
98    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
99      or U/VICE from U/VWIND before computing U/VSTRESS
100    
101    checkpoint59k
102    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
103      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
104    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
105      all experiments pass when compile with un-initialised var. checking option.
106    o added pkg/salt_plume
107    o script to test restart (for now, in MITgcm_contrib/jmc_script)
108    o pkg/seaice: new read/write pickup version.
109      read meta file and write only fields which are needed to restart.
110      ( same logic as main pickup file ; also using pickupStrictlyMatch )
111    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
112    o lab_sea.hb87: modify the domain & update output.hb87.txt :
113      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
114      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
115      process. Fixed here by closing the domain at the Northern boundary.
116    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
117    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
118      a set of consecutive levels in/from a 3-D array.
119    o pkg/ptracers:
120      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
121      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
122    
123    checkpoint59j
124    o in pkgs: dic, obcs, offline, rbcs:
125      standard way to compute coeff. for time interpolation between 2 time reccords
126      which retains full precision (& make results less dependent on compiler).
127      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
128    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
129      packages instead of reading ice cover and wind speed separately
130    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
131     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
132      to allow to compile customized code before the update)
133    o cleaning-up:
134      - fix CPP instruction syntax in pkg/obcs
135      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
136        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
137      - fix some threads issue in IO parts.
138    o pkg/dic:
139      - add tons of "_d 0" (--> much better testreports !)
140       and then update outputs of tutorial_global_oce_biogeo
141    o pkg/mom_fluxform:
142      add a special version of momentum advection intended to conserve momentum
143      next to a bathymetry step or a coastline edge. (default = off = #undef)
144    o new read/write pickup version:
145      - for now, only implemented for main (mdsio) pickup file.
146      - write out only what is needed to restart; merge pickup_nh , pickup_ph
147        and main pickup together.
148      - read meta file; read only what is needed to restart; stop if a field
149        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
150        if it make sense (even if the restart is not perfect).
151      - if no meta file, assume that pickup to read corresponds exactly to
152        a pickup that would currently be written.
153      - read pickup written in the old format (until checkpoint59i) if it
154        recognizes an old meta file (no field-list).
155      - add a meta file in exp. which starts from a pickup: 2 cases:
156        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
157         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
158        b) a meta file describing the content of the associated pickup file
159         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
160    o pkg/mdsio & pkg/rw:
161      - new routine to read a meta file ; new set of routine to read
162        Multiple-fields file (with meta file).
163    o added open boundary conditions capability for seaice
164        HSNOW, HSALT, UICE, and VICE
165    
166    checkpoint59i
167    o adjoint:
168      * fix multiDimAdvection adjoint
169        (partial recomputation problem by TAF for fVerT(:,:,kDown)
170        and comlev1 size definition (maxpass vs. max. number of tracers)
171      * verification/global_ocean.90x45x15 adjoint now tests
172        NLFS and multiDimAdvection using DST3 (=30)
173      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
174    o pkg/kpp: add "_d 0" to real constant (if missing);
175      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
176      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
177    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
178      for internal parameters related to restart process (formerly from PARAMS.h)
179      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
180    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
181      as argument. (only atm2d & obcs write_pickup have not yet been updated)
182    o pkg/monitor:
183      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
184      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
185      - account for deep Atmosphere factor and density factor (anelastic)
186    o added open boundary conditions capability for seaice HEFF and AREA
187    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
188      thermodynamics
189      - requires a little reorganization, which affects the testreport results
190        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
191        so that now the conservative form is tested
192      - add a few comments
193    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
194    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
195    o add new diagnostics to seaice: advective, diffusive fluxes (only for
196      multidim-advection, for scheme 2 they are not filled) and transports,
197      thermodynamic growth rates
198    o change units of EmPmR (inside the code, + within coupling interface)
199      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
200      Affects results @ truncation level (cg2d match) and update output of
201       experiments: lab_sea(6), global_ocean.90x40x15(10),
202      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
203      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
204      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
205      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
206    
207    checkpoint59h
208    o pkg/exf:
209      - improve vectorization by moving if-statement out of loops in
210        exf_mapfields, exf_radiation
211      - exf_bulkformulae.F: introduce 2D fields and vectorize code
212    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
213    o testreport:
214      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
215        monitor & update offline_exf_seaice exp. output.
216      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
217    o pkg/seaice:
218      - bug fix in the evp solver: boundary conditions were affected be
219        masking of zMax/zMin (changes results)
220      - minor bug fix in boundary conditions in seaice_calc_strainrates
221        (changes results for no_slip)
222      - seaice_lsr.F: make interpolation of eta dependent on boundaries
223      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
224      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
225        stress formulation and no-slip boundary conditions
226    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
227      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
228    o pkg/seaice: a first HSALT time stepping equation has been checked in
229    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
230      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
231      without requiring DO-IF statements
232    o pkg/thsice:
233      use continuous power-law function for partition of energy between lateral
234      melting/freezing and thinning/thickening ; old code using step function
235      still available with #undef THSICE_FRACEN_POWERLAW
236      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
237    o testreport: change AD testing : check against results/output_adm.txt
238      using same scripts as for forward test.
239    
240    checkpoint59g
241    o adjoint testing: in preparation for changing testreport:
242      - output format: cost and grad written on separated lines
243      - ad output results in directory "results" (instead of "results_ad")
244    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
245    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
246    o pkg/ecco: allow user defined cost function contributions
247    o testreport:
248      Allow to choose (per experiment) the list of tested output variables
249       and the main variable (used to issue a pass/FAIL ) ;
250      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
251      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
252      Also modify printing of summary:
253       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
254       b) echo the list of tested variables in the individual summary.txt of
255          each experiment.
256    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
257      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
258      (but still depend on the tile decompostion of the domain).
259    o pkg/seaice: change a discretization detail to make the B-grid code
260      "more symmetric". This change is likely to remove all "ridges/leads" that
261      where quasi-aligned with the grid in B-grid solutions. It may also be
262      the solution to the stress coupling issues with the B-grid.
263    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
264      remove .cvsignore from input dir. (since testreport no longer run here).
265    o pkg/thsice:
266     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
267     - fix reshaping of sea-ice just after advection:
268       melt all the ice only if ice-volume is too small.
269     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
270       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
271     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
272    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
273      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
274    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
275      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
276      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
277      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
278      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
279      -> update output.txt
280    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
281     this affects truncation error: -> update output.txt of exp:
282      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
283      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
284    
285    checkpoint59f
286    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
287    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
288      a bounded range (in forward mode)
289    o pkg/ecco, ctrl, autodiff and mom_common:
290     internal parameter controls, completements of implementations
291    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
292    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
293      (not seem any difference in testing results).
294    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
295       at face corners.
296    o pkg/generic_advdiff:
297     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
298      loop range indices for computing vertical advection tendency
299      and do the calculation in the interior only (no overlap) ;
300      for now, only implemented for SOM advection (to save CPU time).
301     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
302    o exch2 adjoint
303      First set of changes:
304      - add exch2 hand-written adjoint templates
305      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
306        This will require cleanup in pkg/autodiff/*.F
307        (changed routines currently kept separate in verif. code/)
308      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
309        that used to hide exch2 or cubed-sphere specific code
310        (commented via 'cph-exch2')
311    o pkg/seaice
312      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
313    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
314       output of global_ocean.cs32x15.thsice .
315    
316    checkpoint59e
317    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
318      for B-grid vector (not yet tested) and C-grid vector (<- only used
319      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
320    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
321      (#ifdef ALLOW_SALT_PLUME)
322    o gather_2d/scatter_2d: removed halo regions
323    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
324      scheme and the corresponding test case (under front_relax dir). For now,
325      only available with Skew-flux form and not yet tested in realistic set-up.
326      adjoint: store directives updated, but gradient checks deteriorated,
327      so maybe GM/Redi adjoint is now broken.
328    o seaice adjoint
329      * add AREA, HEFF, HSNOW as control variable
330        (should not change lab_sea results)
331      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
332    o pkg/seaice:
333      * added computation of saltFlux in seaice_growth;
334        For time being, sea ice salinity is assumed constant
335        contribution of snow flooding to freshening of sea ice is neglected.
336        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
337        defaults to 0.0 in order to maintain backward compatibility.
338        Typical values for SEAICE_salinity are 4 to 10 g/kg.
339      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
340      * added SEAICE_availHeatFrac, which specifies fraction of surface level
341        heat content used to melt or grow ice
342      * commented out cap of HICE: it helps keep ice thinner
343      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
344      * applied OBCS T/S mask to HEFFM sea ice mask
345    
346    checkpoint59d
347    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
348     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
349     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
350    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
351     and change default value of parameter "GM_Small_Number";
352     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
353       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
354       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
355    o pkg/ecco: cost function when applying pkg/smooth to controls
356    o pkg/ctrl: add forcingPrecond run time parameter
357    o pkg/seaice:
358     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
359     - fix bug in metric terms of u-equation in LSR solver (implicit part),
360       changes verification/lab_sea
361     - rearrange implicit part of u-equation in LSR solver to make it easier to
362       read, understand, and debug. This causes changes at the truncation level.
363     - fix (serious) bug in the boundary conditions (sign error in the implicit
364       part) of the LSR solver. Changes all LSR results.
365     - fixed problem with HSNOW initialization to avoid thick snow when AREA
366       is initilized with small values - does not change lab_sea results.
367     - added HsnowFile initialization capability
368    o pkg/smooth: addition to model/src and pkg/ctrl so allow
369     initialization of pkg/smooth and application to control vector
370    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
371    o dependencies: pkg/profiles requires pkg/cal
372    o pkg/profiles:
373     - added option ALLOW_PROFILES_GENERICGRID
374         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
375         that interpolation information (grid points and coefficients) is provided
376         within the netcdf input files.
377         -> sample matlab scripts can be found in MITgcm_contrib/gael
378         that allow you to prepare netcdf input files.
379     - also modified: cleaner include statements, cleaner error print statements,
380       cleaner stops when error, and more tests of the netcdf input files consistency.
381    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
382    o pkg/seaice:
383     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
384       requires a new routine: seaice_diagnostics_fill.F
385     - make sure that seaice does not move if not forced (pressure replacement
386       method, Hibler and Ip, 1995), changes results
387     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
388     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
389       It is turned off by default (=-1.), because it changes the results.
390     - make it possible to read AREA from a file, too.
391    
392    checkpoint59c
393    o add S/R and diagnostics for oceanic mixed-layer depth
394    o move GMRedi call after all vertical mixing schemes (including KPP)
395    o pkg/thsice:
396     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
397      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
398    o pkg/obcs:
399     - bug fix for balance code
400    o pkg/seaice:
401      - allow values of SEAICE_elasticParm > 1
402      - add new parameter SEAICE_evpTauRelax as an alternative
403        to SEAICE_elasticParm
404      - make lsr boundary conditions free slip (by default), changes result
405      - add code for no slip boundary conditions for lsr
406      - set minimum of zeta to zero (and not 4e8) (changes results)
407      - add a cap on AREA after advecting AREA if seaice_growth is not called
408    o change calculation of Visbeck K:
409      - no longer depend on tapering scheme; instead, compute slope (limited
410        by GM_maxSlope). this is equivalent to what was comuted before with
411        clipping or linear tappering.
412      - fix vertical averaging (wrong by 1/2 level)
413      - leave the old version (but will not be maintained) within
414        #ifdef OLD_VISBECK_CALC / #endif
415      - update output of exp. ideal_2D_oce
416    o change error catch in calc_r_star to improve vectorization
417    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
418      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
419    o adjoint:
420      Re-organized adjoint checkpointing according to Matt Mazloff
421      (but with modifs/completions/cleanups)
422      Storing is now bundled into large arrays to optimized I/O
423      (and second step in cleanup of the_main_loop)
424    
425    checkpoint59b
426    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
427      - export/import (between ocean & coupler) fields needed for ocean DIC.
428    o pkg/seaice:
429      - get rid of three more exchanges seaice_calc_viscosities (required
430        different loop boundaries in seaice_lsr and seaice_ocean_stress)
431      - bug fix in seaice_ocean_stress (update of lab_sea required)
432      - reduce loop boundaries to necessary minimum also in seaice_evp
433      - go back to the old way of computing deltaC/Z as the adjoint likes that
434        better
435    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
436      passive tracer to an Age Tracer) + update output.txt
437    o pkg/exf:
438      - implement A-grid / C-grid selection for wind-stress input files.
439      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
440      for now, in exf_bulk_largeyeager04.F only :
441      - change implementation for case where windspeed + 2. components wind-stress
442        are read-in. AND use rhoConstFresh to convert evap.
443    o pkg/seaice:
444      - use correct EXCH_UV for wind-forcing (on A-grid).
445      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
446        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
447    o pkg/exf:
448      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
449      EXF_INTERPOLATION:
450      - merge global_with_exf/code version of exf_interp_read.F
451        to the main code ;
452      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
453        reading the file ; Important: This options needs to be defined to recover
454        previous code.
455        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
456      - no longer loose real*8 precision along the way when using exf_iprec=64.
457    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
458      - change discretisation of evp-solver in order to avoid another exchange
459        (changes lab_sea) and clean up a little
460      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
461        help the adjoint (this also changes the results slightly)
462      - add a few "_d 0" where they had been missing in seaice_evp.F
463      - cleaning up: remove unused seaice_calc_rhs.F
464    o pkg/exf: some cleaning-up:
465      - change various "constants" into runtime parameters
466      - cleaned-up Large&Yeager04 routine which should eventually
467        replace exf_bulkformulae.F (changed names of S/R and CPP)
468        and merged various ALLOW_ATM_WIND options
469     only used with thsice pkg (in thsice_get_exf.F):
470      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
471        which are used when useStabilityFct_overIce=TRUE (= the default)
472      - change default values of ice & snow emissivity and scale downward LW
473        by ice & snow emissivity.
474    o pkg/thsice:
475     fix few little problems, in thsice_calc_thickn.F:
476      - growth vertically (and not laterally) if iceFrac == iceMaskMax
477      - melt only laterally if hIce < hThinIce (as the comments say)
478      and in thsice_extend.F:
479      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
480      - start to form ice as soon as the minimum ice-volume is reachable.
481     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
482      and cpl_aim+ocn
483    o pkg/kpp
484     - move computation of surface related input fields to KPP into a new
485       subroutine kpp_forcing_surf.F
486     - remove wrong (within bi,bj loops) EXCH calls.
487     - little cleaning (add argument myThid in last position, cvs header ...)
488     - for now, fix conservation problem by exchanging KPPviscAz (may not
489       be the best fix)
490    o pkg/seaice
491     - check for inconsistent evp parameter/cpp-flag combination
492     - remove leftover errIO flat for obsolete name list error handling
493    o OpenAD
494     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
495    
496    checkpoint59a
497    o pkg/seaice: some parameter clarifications and a little bit of clean up
498    o pkg/thsice: rename run-time parameters:
499       himin       -> hIceMin
500       himin0      -> hThinIce
501       hihig       -> hThickIce
502       i0          -> i0swFrac
503       transCoef   -> bMeltCoef
504       frac_energy -> fracMelting
505      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
506       with default values (for now) that do not change the results.
507      remove old version of thsice vars advection in pkg/seaice.
508    o in FFIELDS.h:
509      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
510      - make pLoad & sIceLoad always available (but still only used if
511         ATMOSPHERIC_LOADING is #define).
512    o pkg/kpp: replaced _KPP_RL with _RL
513    o bug fixes for vertical diffusivity computations when both KPP and
514        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
515        are no longer updating the vertical diffusivity array
516        (passed as argument) but are (re-) setting those arrays.
517    o pkg/seaice: fix bug in evp solver, while doing that
518      - change (improve?) discretization of stress computations for both
519        cgrid-lsr and evp solver
520      - add a new routine to compute strain rates
521      - the above changes lab_sea results
522      - add no slip conditions for evp solver (off by default), lsr-version
523        may follow
524      - fix exchange for shear at Z-points (does not change lab_sea)
525      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
526        (to force the user to pick a time step since there is not "safe" way
527        of choosing it)
528      - add principal stress diagnostics
529      - rearrange fields for evp a little to avoid having to call a: too many
530        exchanges and b: exchanges for stress trensor components which we do
531        not have.
532      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
533        of evp, complete rewrite for lsr case (latter is does not yet work
534        in all cases)
535    o pkg/kpp: add code to have mixing in shelf ice caverns
536      - add myThid to all kpp routines (long overdue)
537    
538    checkpoint59
539    o pkg/exf:
540      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
541        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
542      - move exf header files from lower_case.h to UPPER_CASE.h ;
543        add missing cvs Header & Name
544      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
545      - add namelist param. selectStressGridPosition, exf_monFreq
546      - retire many _CLIM routines, and remove data.exf_clim
547        + params moved to data.exf
548        + climsst, climsss now handled by exf_set_gen, i.e.
549          climss?period=0 refers to constant field,
550          climss?period=-12 to monthly forcing
551      - split up namelists in data.exf
552    o pkg/seaice:
553      - remove seaice_exch and seaice_exch_uv
554      - remove superfluous exchange of theta
555      - add myThid to seaice_budget_ocean/ice
556      - add new interface for atmospheric wind forcing (C-grid only)
557        + new routine
558        + two new field (taux, tauy for stress over ice)
559        + removed one global field (DAIRN) for C-grid case only
560    o pkg/thsise
561      - 2nd set of modifs for thsice adjoint in conjunction with exf
562    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
563    
564    checkpoint58y_post
565    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
566      vertical diffusivity, similar to that in MOM4; turned on using
567      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
568      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
569    o Added capability for 3D specification of background vertical diffusion
570      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
571      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
572      "data" file that contains the 3D vertical diffusivity coefficients.
573    o ice dynamics (pkg/seaice) with thsice thermodynamics:
574      - add code within pkg thsice to advect & diffuse sea-ice fields
575      similar to (and will replace) what has been added in  seaice_advdiff.F,
576      but: - conserving Mass, Heat & Salt.
577           - better when using non-linear advection scheme (not yet fully tested)
578           - can also be used in atmospheric set-up (for now, only the diffusion).
579    
580    checkpoint58x_post
581    o IO option for global-file compact format:
582      - add options when generating topology (utils/exch2/matlab-topology-generator)
583      - add I/O capability (pkg/mdsio).
584      - adapt utils/matlab/rdmds.m to read this format.
585      for now long-line format not yet supported by pkg/mdsio (& exch2).
586  o shelfice: add a few diagnostics  o shelfice: add a few diagnostics
587    
588  checkpoint58w_post  checkpoint58w_post

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