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revision 1.772 by jmc, Fri Feb 16 00:30:01 2007 UTC revision 1.945 by mlosch, Thu Jan 24 18:41:16 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
8      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
9      subroutines (which could be generated from a template, because they are
10      almost identical), for now they are included in obcs_prescribe_read.F for
11      simplicity
12    o pkg/exf:
13      - add a little more diagnostic to exf_interp_read (in analogy to
14        mds_read_field, can be turned off with debugLevel < debugLevA=1)
15      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
16        ugly but fast by unrolling short inner loops, inserting a unroll=8
17        directive in routine lagran, and splitting a loop and making do while the
18        outermost loop (the latter requires the intoduction of index arrays)
19    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
20    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
21      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
22    o verification/seaice_obcs: updated for restart test and latest options
23    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
24      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
25      for now this is only available for the C-grid code and also within
26      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
27    
28    checkpoint59m
29    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
30      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
31    o gad_som : fix flux output (& diagnostics) to have same units as other  
32      advection scheme fluxes (was previously multiplied by deltaT).  
33    o added verification/seaice_obcs both to test seaice open boundaries
34      and to provide an example matlab scrpt for generating them
35    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
36    o pkg/salt_plume: clean up salt_plume_frac.F to
37      remove redundancy in PlumeMethod 1 and 4
38    o pkg/kpp: added saltplume diagnostics
39    o pkg/obcs and pkg/seaice:
40      - do not set uice and vice to zero when OB*icefile are unspecified
41      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
42      - moved seaice tracer obcs after call to seaice_growth
43    o pkg/salt_plume: added various options for salt plume depth
44      criterion and for vertical distribution of the salt
45    
46    checkpoint59l
47    o pkg/ptracers: new version of ptracers pickup:
48      read meta file and write only fields which are needed to restart.
49      ( same logic as main pickup file ; also using pickupStrictlyMatch )
50    o pkg/seaice:
51      - add timescale for melting due to warm mixed layer as a means of
52        setting SEAICE_availHeatFrac more conveniently
53      - add a CPP-flag/runtime parameter check for flooding algorithm
54      - reformulated availHeat in seaice_growth.F to be independent of AREA
55    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
56      unit changes
57    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
58    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
59      SX vector computer.
60    o pkg/seaice:
61      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
62        seaice forcing fields can now be read only through pkg/exf
63      - removed some unused halos
64    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
65    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
66      or U/VICE from U/VWIND before computing U/VSTRESS
67    
68    checkpoint59k
69    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
70      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
71    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
72      all experiments pass when compile with un-initialised var. checking option.
73    o added pkg/salt_plume
74    o script to test restart (for now, in MITgcm_contrib/jmc_script)
75    o pkg/seaice: new read/write pickup version.
76      read meta file and write only fields which are needed to restart.
77      ( same logic as main pickup file ; also using pickupStrictlyMatch )
78    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
79    o lab_sea.hb87: modify the domain & update output.hb87.txt :
80      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
81      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
82      process. Fixed here by closing the domain at the Northern boundary.
83    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
84    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
85      a set of consecutive levels in/from a 3-D array.
86    o pkg/ptracers:
87      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
88      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
89    
90    checkpoint59j
91    o in pkgs: dic, obcs, offline, rbcs:
92      standard way to compute coeff. for time interpolation between 2 time reccords
93      which retains full precision (& make results less dependent on compiler).
94      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
95    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
96      packages instead of reading ice cover and wind speed separately
97    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
98     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
99      to allow to compile customized code before the update)
100    o cleaning-up:
101      - fix CPP instruction syntax in pkg/obcs
102      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
103        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
104      - fix some threads issue in IO parts.
105    o pkg/dic:
106      - add tons of "_d 0" (--> much better testreports !)
107       and then update outputs of tutorial_global_oce_biogeo
108    o pkg/mom_fluxform:
109      add a special version of momentum advection intended to conserve momentum
110      next to a bathymetry step or a coastline edge. (default = off = #undef)
111    o new read/write pickup version:
112      - for now, only implemented for main (mdsio) pickup file.
113      - write out only what is needed to restart; merge pickup_nh , pickup_ph
114        and main pickup together.
115      - read meta file; read only what is needed to restart; stop if a field
116        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
117        if it make sense (even if the restart is not perfect).
118      - if no meta file, assume that pickup to read corresponds exactly to
119        a pickup that would currently be written.
120      - read pickup written in the old format (until checkpoint59i) if it
121        recognizes an old meta file (no field-list).
122      - add a meta file in exp. which starts from a pickup: 2 cases:
123        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
124         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
125        b) a meta file describing the content of the associated pickup file
126         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
127    o pkg/mdsio & pkg/rw:
128      - new routine to read a meta file ; new set of routine to read
129        Multiple-fields file (with meta file).
130    o added open boundary conditions capability for seaice
131        HSNOW, HSALT, UICE, and VICE
132    
133    checkpoint59i
134    o adjoint:
135      * fix multiDimAdvection adjoint
136        (partial recomputation problem by TAF for fVerT(:,:,kDown)
137        and comlev1 size definition (maxpass vs. max. number of tracers)
138      * verification/global_ocean.90x45x15 adjoint now tests
139        NLFS and multiDimAdvection using DST3 (=30)
140      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
141    o pkg/kpp: add "_d 0" to real constant (if missing);
142      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
143      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
144    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
145      for internal parameters related to restart process (formerly from PARAMS.h)
146      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
147    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
148      as argument. (only atm2d & obcs write_pickup have not yet been updated)
149    o pkg/monitor:
150      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
151      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
152      - account for deep Atmosphere factor and density factor (anelastic)
153    o added open boundary conditions capability for seaice HEFF and AREA
154    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
155      thermodynamics
156      - requires a little reorganization, which affects the testreport results
157        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
158        so that now the conservative form is tested
159      - add a few comments
160    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
161    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
162    o add new diagnostics to seaice: advective, diffusive fluxes (only for
163      multidim-advection, for scheme 2 they are not filled) and transports,
164      thermodynamic growth rates
165    o change units of EmPmR (inside the code, + within coupling interface)
166      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
167      Affects results @ truncation level (cg2d match) and update output of
168       experiments: lab_sea(6), global_ocean.90x40x15(10),
169      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
170      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
171      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
172      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
173    
174    checkpoint59h
175    o pkg/exf:
176      - improve vectorization by moving if-statement out of loops in
177        exf_mapfields, exf_radiation
178      - exf_bulkformulae.F: introduce 2D fields and vectorize code
179    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
180    o testreport:
181      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
182        monitor & update offline_exf_seaice exp. output.
183      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
184    o pkg/seaice:
185      - bug fix in the evp solver: boundary conditions were affected be
186        masking of zMax/zMin (changes results)
187      - minor bug fix in boundary conditions in seaice_calc_strainrates
188        (changes results for no_slip)
189      - seaice_lsr.F: make interpolation of eta dependent on boundaries
190      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
191      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
192        stress formulation and no-slip boundary conditions
193    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
194      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
195    o pkg/seaice: a first HSALT time stepping equation has been checked in
196    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
197      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
198      without requiring DO-IF statements
199    o pkg/thsice:
200      use continuous power-law function for partition of energy between lateral
201      melting/freezing and thinning/thickening ; old code using step function
202      still available with #undef THSICE_FRACEN_POWERLAW
203      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
204    o testreport: change AD testing : check against results/output_adm.txt
205      using same scripts as for forward test.
206    
207    checkpoint59g
208    o adjoint testing: in preparation for changing testreport:
209      - output format: cost and grad written on separated lines
210      - ad output results in directory "results" (instead of "results_ad")
211    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
212    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
213    o pkg/ecco: allow user defined cost function contributions
214    o testreport:
215      Allow to choose (per experiment) the list of tested output variables
216       and the main variable (used to issue a pass/FAIL ) ;
217      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
218      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
219      Also modify printing of summary:
220       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
221       b) echo the list of tested variables in the individual summary.txt of
222          each experiment.
223    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
224      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
225      (but still depend on the tile decompostion of the domain).
226    o pkg/seaice: change a discretization detail to make the B-grid code
227      "more symmetric". This change is likely to remove all "ridges/leads" that
228      where quasi-aligned with the grid in B-grid solutions. It may also be
229      the solution to the stress coupling issues with the B-grid.
230    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
231      remove .cvsignore from input dir. (since testreport no longer run here).
232    o pkg/thsice:
233     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
234     - fix reshaping of sea-ice just after advection:
235       melt all the ice only if ice-volume is too small.
236     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
237       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
238     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
239    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
240      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
241    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
242      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
243      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
244      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
245      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
246      -> update output.txt
247    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
248     this affects truncation error: -> update output.txt of exp:
249      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
250      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
251    
252    checkpoint59f
253    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
254    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
255      a bounded range (in forward mode)
256    o pkg/ecco, ctrl, autodiff and mom_common:
257     internal parameter controls, completements of implementations
258    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
259    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
260      (not seem any difference in testing results).
261    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
262       at face corners.
263    o pkg/generic_advdiff:
264     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
265      loop range indices for computing vertical advection tendency
266      and do the calculation in the interior only (no overlap) ;
267      for now, only implemented for SOM advection (to save CPU time).
268     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
269    o exch2 adjoint
270      First set of changes:
271      - add exch2 hand-written adjoint templates
272      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
273        This will require cleanup in pkg/autodiff/*.F
274        (changed routines currently kept separate in verif. code/)
275      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
276        that used to hide exch2 or cubed-sphere specific code
277        (commented via 'cph-exch2')
278    o pkg/seaice
279      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
280    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
281       output of global_ocean.cs32x15.thsice .
282    
283    checkpoint59e
284    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
285      for B-grid vector (not yet tested) and C-grid vector (<- only used
286      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
287    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
288      (#ifdef ALLOW_SALT_PLUME)
289    o gather_2d/scatter_2d: removed halo regions
290    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
291      scheme and the corresponding test case (under front_relax dir). For now,
292      only available with Skew-flux form and not yet tested in realistic set-up.
293      adjoint: store directives updated, but gradient checks deteriorated,
294      so maybe GM/Redi adjoint is now broken.
295    o seaice adjoint
296      * add AREA, HEFF, HSNOW as control variable
297        (should not change lab_sea results)
298      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
299    o pkg/seaice:
300      * added computation of saltFlux in seaice_growth;
301        For time being, sea ice salinity is assumed constant
302        contribution of snow flooding to freshening of sea ice is neglected.
303        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
304        defaults to 0.0 in order to maintain backward compatibility.
305        Typical values for SEAICE_salinity are 4 to 10 g/kg.
306      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
307      * added SEAICE_availHeatFrac, which specifies fraction of surface level
308        heat content used to melt or grow ice
309      * commented out cap of HICE: it helps keep ice thinner
310      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
311      * applied OBCS T/S mask to HEFFM sea ice mask
312    
313    checkpoint59d
314    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
315     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
316     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
317    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
318     and change default value of parameter "GM_Small_Number";
319     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
320       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
321       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
322    o pkg/ecco: cost function when applying pkg/smooth to controls
323    o pkg/ctrl: add forcingPrecond run time parameter
324    o pkg/seaice:
325     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
326     - fix bug in metric terms of u-equation in LSR solver (implicit part),
327       changes verification/lab_sea
328     - rearrange implicit part of u-equation in LSR solver to make it easier to
329       read, understand, and debug. This causes changes at the truncation level.
330     - fix (serious) bug in the boundary conditions (sign error in the implicit
331       part) of the LSR solver. Changes all LSR results.
332     - fixed problem with HSNOW initialization to avoid thick snow when AREA
333       is initilized with small values - does not change lab_sea results.
334     - added HsnowFile initialization capability
335    o pkg/smooth: addition to model/src and pkg/ctrl so allow
336     initialization of pkg/smooth and application to control vector
337    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
338    o dependencies: pkg/profiles requires pkg/cal
339    o pkg/profiles:
340     - added option ALLOW_PROFILES_GENERICGRID
341         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
342         that interpolation information (grid points and coefficients) is provided
343         within the netcdf input files.
344         -> sample matlab scripts can be found in MITgcm_contrib/gael
345         that allow you to prepare netcdf input files.
346     - also modified: cleaner include statements, cleaner error print statements,
347       cleaner stops when error, and more tests of the netcdf input files consistency.
348    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
349    o pkg/seaice:
350     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
351       requires a new routine: seaice_diagnostics_fill.F
352     - make sure that seaice does not move if not forced (pressure replacement
353       method, Hibler and Ip, 1995), changes results
354     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
355     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
356       It is turned off by default (=-1.), because it changes the results.
357     - make it possible to read AREA from a file, too.
358    
359    checkpoint59c
360    o add S/R and diagnostics for oceanic mixed-layer depth
361    o move GMRedi call after all vertical mixing schemes (including KPP)
362    o pkg/thsice:
363     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
364      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
365    o pkg/obcs:
366     - bug fix for balance code
367    o pkg/seaice:
368      - allow values of SEAICE_elasticParm > 1
369      - add new parameter SEAICE_evpTauRelax as an alternative
370        to SEAICE_elasticParm
371      - make lsr boundary conditions free slip (by default), changes result
372      - add code for no slip boundary conditions for lsr
373      - set minimum of zeta to zero (and not 4e8) (changes results)
374      - add a cap on AREA after advecting AREA if seaice_growth is not called
375    o change calculation of Visbeck K:
376      - no longer depend on tapering scheme; instead, compute slope (limited
377        by GM_maxSlope). this is equivalent to what was comuted before with
378        clipping or linear tappering.
379      - fix vertical averaging (wrong by 1/2 level)
380      - leave the old version (but will not be maintained) within
381        #ifdef OLD_VISBECK_CALC / #endif
382      - update output of exp. ideal_2D_oce
383    o change error catch in calc_r_star to improve vectorization
384    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
385      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
386    o adjoint:
387      Re-organized adjoint checkpointing according to Matt Mazloff
388      (but with modifs/completions/cleanups)
389      Storing is now bundled into large arrays to optimized I/O
390      (and second step in cleanup of the_main_loop)
391    
392    checkpoint59b
393    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
394      - export/import (between ocean & coupler) fields needed for ocean DIC.
395    o pkg/seaice:
396      - get rid of three more exchanges seaice_calc_viscosities (required
397        different loop boundaries in seaice_lsr and seaice_ocean_stress)
398      - bug fix in seaice_ocean_stress (update of lab_sea required)
399      - reduce loop boundaries to necessary minimum also in seaice_evp
400      - go back to the old way of computing deltaC/Z as the adjoint likes that
401        better
402    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
403      passive tracer to an Age Tracer) + update output.txt
404    o pkg/exf:
405      - implement A-grid / C-grid selection for wind-stress input files.
406      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
407      for now, in exf_bulk_largeyeager04.F only :
408      - change implementation for case where windspeed + 2. components wind-stress
409        are read-in. AND use rhoConstFresh to convert evap.
410    o pkg/seaice:
411      - use correct EXCH_UV for wind-forcing (on A-grid).
412      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
413        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
414    o pkg/exf:
415      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
416      EXF_INTERPOLATION:
417      - merge global_with_exf/code version of exf_interp_read.F
418        to the main code ;
419      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
420        reading the file ; Important: This options needs to be defined to recover
421        previous code.
422        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
423      - no longer loose real*8 precision along the way when using exf_iprec=64.
424    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
425      - change discretisation of evp-solver in order to avoid another exchange
426        (changes lab_sea) and clean up a little
427      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
428        help the adjoint (this also changes the results slightly)
429      - add a few "_d 0" where they had been missing in seaice_evp.F
430      - cleaning up: remove unused seaice_calc_rhs.F
431    o pkg/exf: some cleaning-up:
432      - change various "constants" into runtime parameters
433      - cleaned-up Large&Yeager04 routine which should eventually
434        replace exf_bulkformulae.F (changed names of S/R and CPP)
435        and merged various ALLOW_ATM_WIND options
436     only used with thsice pkg (in thsice_get_exf.F):
437      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
438        which are used when useStabilityFct_overIce=TRUE (= the default)
439      - change default values of ice & snow emissivity and scale downward LW
440        by ice & snow emissivity.
441    o pkg/thsice:
442     fix few little problems, in thsice_calc_thickn.F:
443      - growth vertically (and not laterally) if iceFrac == iceMaskMax
444      - melt only laterally if hIce < hThinIce (as the comments say)
445      and in thsice_extend.F:
446      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
447      - start to form ice as soon as the minimum ice-volume is reachable.
448     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
449      and cpl_aim+ocn
450    o pkg/kpp
451     - move computation of surface related input fields to KPP into a new
452       subroutine kpp_forcing_surf.F
453     - remove wrong (within bi,bj loops) EXCH calls.
454     - little cleaning (add argument myThid in last position, cvs header ...)
455     - for now, fix conservation problem by exchanging KPPviscAz (may not
456       be the best fix)
457    o pkg/seaice
458     - check for inconsistent evp parameter/cpp-flag combination
459     - remove leftover errIO flat for obsolete name list error handling
460    o OpenAD
461     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
462    
463    checkpoint59a
464    o pkg/seaice: some parameter clarifications and a little bit of clean up
465    o pkg/thsice: rename run-time parameters:
466       himin       -> hIceMin
467       himin0      -> hThinIce
468       hihig       -> hThickIce
469       i0          -> i0swFrac
470       transCoef   -> bMeltCoef
471       frac_energy -> fracMelting
472      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
473       with default values (for now) that do not change the results.
474      remove old version of thsice vars advection in pkg/seaice.
475    o in FFIELDS.h:
476      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
477      - make pLoad & sIceLoad always available (but still only used if
478         ATMOSPHERIC_LOADING is #define).
479    o pkg/kpp: replaced _KPP_RL with _RL
480    o bug fixes for vertical diffusivity computations when both KPP and
481        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
482        are no longer updating the vertical diffusivity array
483        (passed as argument) but are (re-) setting those arrays.
484    o pkg/seaice: fix bug in evp solver, while doing that
485      - change (improve?) discretization of stress computations for both
486        cgrid-lsr and evp solver
487      - add a new routine to compute strain rates
488      - the above changes lab_sea results
489      - add no slip conditions for evp solver (off by default), lsr-version
490        may follow
491      - fix exchange for shear at Z-points (does not change lab_sea)
492      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
493        (to force the user to pick a time step since there is not "safe" way
494        of choosing it)
495      - add principal stress diagnostics
496      - rearrange fields for evp a little to avoid having to call a: too many
497        exchanges and b: exchanges for stress trensor components which we do
498        not have.
499      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
500        of evp, complete rewrite for lsr case (latter is does not yet work
501        in all cases)
502    o pkg/kpp: add code to have mixing in shelf ice caverns
503      - add myThid to all kpp routines (long overdue)
504    
505    checkpoint59
506    o pkg/exf:
507      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
508        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
509      - move exf header files from lower_case.h to UPPER_CASE.h ;
510        add missing cvs Header & Name
511      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
512      - add namelist param. selectStressGridPosition, exf_monFreq
513      - retire many _CLIM routines, and remove data.exf_clim
514        + params moved to data.exf
515        + climsst, climsss now handled by exf_set_gen, i.e.
516          climss?period=0 refers to constant field,
517          climss?period=-12 to monthly forcing
518      - split up namelists in data.exf
519    o pkg/seaice:
520      - remove seaice_exch and seaice_exch_uv
521      - remove superfluous exchange of theta
522      - add myThid to seaice_budget_ocean/ice
523      - add new interface for atmospheric wind forcing (C-grid only)
524        + new routine
525        + two new field (taux, tauy for stress over ice)
526        + removed one global field (DAIRN) for C-grid case only
527    o pkg/thsise
528      - 2nd set of modifs for thsice adjoint in conjunction with exf
529    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
530    
531    checkpoint58y_post
532    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
533      vertical diffusivity, similar to that in MOM4; turned on using
534      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
535      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
536    o Added capability for 3D specification of background vertical diffusion
537      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
538      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
539      "data" file that contains the 3D vertical diffusivity coefficients.
540    o ice dynamics (pkg/seaice) with thsice thermodynamics:
541      - add code within pkg thsice to advect & diffuse sea-ice fields
542      similar to (and will replace) what has been added in  seaice_advdiff.F,
543      but: - conserving Mass, Heat & Salt.
544           - better when using non-linear advection scheme (not yet fully tested)
545           - can also be used in atmospheric set-up (for now, only the diffusion).
546    
547    checkpoint58x_post
548    o IO option for global-file compact format:
549      - add options when generating topology (utils/exch2/matlab-topology-generator)
550      - add I/O capability (pkg/mdsio).
551      - adapt utils/matlab/rdmds.m to read this format.
552      for now long-line format not yet supported by pkg/mdsio (& exch2).
553    o shelfice: add a few diagnostics
554    
555    checkpoint58w_post
556    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
557      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
558      (and replace horiVertRatio in NH code).
559      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
560                         and tutorial_plume_on_slope (sensitive to truncation)
561    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
562      directly to drive seaice model (C-grid only)
563    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
564     - reintroduce computation of wind from stress,
565     - compute tau (in exf_bulkformulae.F) from windstress averaged to
566       mass points to avoid tau = 0
567     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
568    o rdmnc.m: make it work with "global" files created with gluemnc
569    o rdmnc.m : some improvements in dealing with singleton dimension
570      (tested on all testreport mnc output files).
571    o genmake2: disable pkg/profiles if netcdf test fails.
572  o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.  o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
573  o move call to cal_readparms up to make calendar parameters/variable available  o move call to cal_readparms up to make calendar parameters/variable available
574    to all packages    to all packages

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