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revision 1.748 by gforget, Thu Nov 23 00:06:21 2006 UTC revision 1.924 by dimitri, Fri Dec 14 21:52:01 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8      - add timescale for melting due to warm mixed layer as a means of
9        setting SEAICE_availHeatFrac more conveniently
10      - add a CPP-flag/runtime parameter check for flooding algorithm
11      - reformulated availHeat in seaice_growth.F to be independent of AREA
12    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
13      unit changes
14    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
15    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
16      SX vector computer.
17    o pkg/seaice:
18      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
19        seaice forcing fields can now be read only through pkg/exf
20      - removed some unused halos
21    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
22    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
23      or U/VICE from U/VWIND before computing U/VSTRESS
24    
25    checkpoint59k
26    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
27      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
28    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
29      all experiments pass when compile with un-initilised var. checking option.
30    o added pkg/salt_plume
31    o script to test restart (for now, in MITgcm_contrib/jmc_script)
32    o pkg/seaice: new read/write pickup version.
33      read meta file and write only fields which are needed to restart.
34      ( same logic as main pickup file ; also using pickupStrictlyMatch )
35    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
36    o lab_sea.hb87: modify the domain & update output.hb87.txt :
37      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
38      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
39      process. Fixed here by closing the domain at the Northern boundary.
40    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
41    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
42      a set of consecutive levels in/from a 3-D array.
43    o pkg/ptracers:
44      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
45      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
46    
47    checkpoint59j
48    o in pkgs: dic, obcs, offline, rbcs:
49      standard way to compute coeff. for time interpolation between 2 time reccords
50      which retains full precision (& make results less dependent on compiler).
51      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
52    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
53      packages instead of reading ice cover and wind speed separately
54    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
55     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
56      to allow to compile customized code before the update)
57    o cleaning-up:
58      - fix CPP instruction syntax in pkg/obcs
59      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
60        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
61      - fix some threads issue in IO parts.
62    o pkg/dic:
63      - add tons of "_d 0" (--> much better testreports !)
64       and then update outputs of tutorial_global_oce_biogeo
65    o pkg/mom_fluxform:
66      add a special version of momentum advection intended to conserve momentum
67      next to a bathymetry step or a coastline edge. (default = off = #undef)
68    o new read/write pickup version:
69      - for now, only implemented for main (mdsio) pickup file.
70      - write out only what is needed to restart; merge pickup_nh , pickup_ph
71        and main pickup together.
72      - read meta file; read only what is needed to restart; stop if a field
73        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
74        if it make sense (even if the restart is not perfect).
75      - if no meta file, assume that pickup to read corresponds exactly to
76        a pickup that would currently be written.
77      - read pickup written in the old format (until checkpoint59i) if it
78        recognizes an old meta file (no field-list).
79      - add a meta file in exp. which starts from a pickup: 2 cases:
80        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
81         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
82        b) a meta file describing the content of the associated pickup file
83         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
84    o pkg/mdsio & pkg/rw:
85      - new routine to read a meta file ; new set of routine to read
86        Multiple-fields file (with meta file).
87    o added open boundary conditions capability for seaice
88        HSNOW, HSALT, UICE, and VICE
89    
90    checkpoint59i
91    o adjoint:
92      * fix multiDimAdvection adjoint
93        (partial recomputation problem by TAF for fVerT(:,:,kDown)
94        and comlev1 size definition (maxpass vs. max. number of tracers)
95      * verification/global_ocean.90x45x15 adjoint now tests
96        NLFS and multiDimAdvection using DST3 (=30)
97      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
98    o pkg/kpp: add "_d 0" to real constant (if missing);
99      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
100      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
101    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
102      for internal parameters related to restart process (formerly from PARAMS.h)
103      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
104    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
105      as argument. (only atm2d & obcs write_pickup have not yet been updated)
106    o pkg/monitor:
107      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
108      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
109      - account for deep Atmosphere factor and density factor (anelastic)
110    o added open boundary conditions capability for seaice HEFF and AREA
111    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
112      thermodynamics
113      - requires a little reorganization, which affects the testreport results
114        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
115        so that now the conservative form is tested
116      - add a few comments
117    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
118    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
119    o add new diagnostics to seaice: advective, diffusive fluxes (only for
120      multidim-advection, for scheme 2 they are not filled) and transports,
121      thermodynamic growth rates
122    o change units of EmPmR (inside the code, + within coupling interface)
123      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
124      Affects results @ truncation level (cg2d match) and update output of
125       experiments: lab_sea(6), global_ocean.90x40x15(10),
126      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
127      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
128      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
129      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
130    
131    checkpoint59h
132    o pkg/exf:
133      - improve vectorization by moving if-statement out of loops in
134        exf_mapfields, exf_radiation
135      - exf_bulkformulae.F: introduce 2D fields and vectorize code
136    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
137    o testreport:
138      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
139        monitor & update offline_exf_seaice exp. output.
140      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
141    o pkg/seaice:
142      - bug fix in the evp solver: boundary conditions were affected be
143        masking of zMax/zMin (changes results)
144      - minor bug fix in boundary conditions in seaice_calc_strainrates
145        (changes results for no_slip)
146      - seaice_lsr.F: make interpolation of eta dependent on boundaries
147      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
148      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
149        stress formulation and no-slip boundary conditions
150    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
151      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
152    o pkg/seaice: a first HSALT time stepping equation has been checked in
153    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
154      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
155      without requiring DO-IF statements
156    o pkg/thsice:
157      use continuous power-law function for partition of energy between lateral
158      melting/freezing and thinning/thickening ; old code using step function
159      still available with #undef THSICE_FRACEN_POWERLAW
160      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
161    o testreport: change AD testing : check against results/output_adm.txt
162      using same scripts as for forward test.
163    
164    checkpoint59g
165    o adjoint testing: in preparation for changing testreport:
166      - output format: cost and grad written on separated lines
167      - ad output results in directory "results" (instead of "results_ad")
168    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
169    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
170    o pkg/ecco: allow user defined cost function contributions
171    o testreport:
172      Allow to choose (per experiment) the list of tested output variables
173       and the main variable (used to issue a pass/FAIL ) ;
174      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
175      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
176      Also modify printing of summary:
177       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
178       b) echo the list of tested variables in the individual summary.txt of
179          each experiment.
180    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
181      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
182      (but still depend on the tile decompostion of the domain).
183    o pkg/seaice: change a discretization detail to make the B-grid code
184      "more symmetric". This change is likely to remove all "ridges/leads" that
185      where quasi-aligned with the grid in B-grid solutions. It may also be
186      the solution to the stress coupling issues with the B-grid.
187    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
188      remove .cvsignore from input dir. (since testreport no longer run here).
189    o pkg/thsice:
190     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
191     - fix reshaping of sea-ice just after advection:
192       melt all the ice only if ice-volume is too small.
193     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
194       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
195     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
196    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
197      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
198    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
199      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
200      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
201      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
202      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
203      -> update output.txt
204    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
205     this affects truncation error: -> update output.txt of exp:
206      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
207      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
208    
209    checkpoint59f
210    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
211    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
212      a bounded range (in forward mode)
213    o pkg/ecco, ctrl, autodiff and mom_common:
214     internal parameter controls, completements of implementations
215    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
216    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
217      (not seem any difference in testing results).
218    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
219       at face corners.
220    o pkg/generic_advdiff:
221     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
222      loop range indices for computing vertical advection tendency
223      and do the calculation in the interior only (no overlap) ;
224      for now, only implemented for SOM advection (to save CPU time).
225     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
226    o exch2 adjoint
227      First set of changes:
228      - add exch2 hand-written adjoint templates
229      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
230        This will require cleanup in pkg/autodiff/*.F
231        (changed routines currently kept separate in verif. code/)
232      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
233        that used to hide exch2 or cubed-sphere specific code
234        (commented via 'cph-exch2')
235    o pkg/seaice
236      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
237    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
238       output of global_ocean.cs32x15.thsice .
239    
240    checkpoint59e
241    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
242      for B-grid vector (not yet tested) and C-grid vector (<- only used
243      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
244    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
245      (#ifdef ALLOW_SALT_PLUME)
246    o gather_2d/scatter_2d: removed halo regions
247    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
248      scheme and the corresponding test case (under front_relax dir). For now,
249      only available with Skew-flux form and not yet tested in realistic set-up.
250      adjoint: store directives updated, but gradient checks deteriorated,
251      so maybe GM/Redi adjoint is now broken.
252    o seaice adjoint
253      * add AREA, HEFF, HSNOW as control variable
254        (should not change lab_sea results)
255      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
256    o pkg/seaice:
257      * added computation of saltFlux in seaice_growth;
258        For time being, sea ice salinity is assumed constant
259        contribution of snow flooding to freshening of sea ice is neglected.
260        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
261        defaults to 0.0 in order to maintain backward compatibility.
262        Typical values for SEAICE_salinity are 4 to 10 g/kg.
263      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
264      * added SEAICE_availHeatFrac, which specifies fraction of surface level
265        heat content used to melt or grow ice
266      * commented out cap of HICE: it helps keep ice thinner
267      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
268      * applied OBCS T/S mask to HEFFM sea ice mask
269    
270    checkpoint59d
271    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
272     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
273     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
274    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
275     and change default value of parameter "GM_Small_Number";
276     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
277       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
278       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
279    o pkg/ecco: cost function when applying pkg/smooth to controls
280    o pkg/ctrl: add forcingPrecond run time parameter
281    o pkg/seaice:
282     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
283     - fix bug in metric terms of u-equation in LSR solver (implicit part),
284       changes verification/lab_sea
285     - rearrange implicit part of u-equation in LSR solver to make it easier to
286       read, understand, and debug. This causes changes at the truncation level.
287     - fix (serious) bug in the boundary conditions (sign error in the implicit
288       part) of the LSR solver. Changes all LSR results.
289     - fixed problem with HSNOW initialization to avoid thick snow when AREA
290       is initilized with small values - does not change lab_sea results.
291     - added HsnowFile initialization capability
292    o pkg/smooth: addition to model/src and pkg/ctrl so allow
293     initialization of pkg/smooth and application to control vector
294    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
295    o dependencies: pkg/profiles requires pkg/cal
296    o pkg/profiles:
297     - added option ALLOW_PROFILES_GENERICGRID
298         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
299         that interpolation information (grid points and coefficients) is provided
300         within the netcdf input files.
301         -> sample matlab scripts can be found in MITgcm_contrib/gael
302         that allow you to prepare netcdf input files.
303     - also modified: cleaner include statements, cleaner error print statements,
304       cleaner stops when error, and more tests of the netcdf input files consistency.
305    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
306    o pkg/seaice:
307     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
308       requires a new routine: seaice_diagnostics_fill.F
309     - make sure that seaice does not move if not forced (pressure replacement
310       method, Hibler and Ip, 1995), changes results
311     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
312     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
313       It is turned off by default (=-1.), because it changes the results.
314     - make it possible to read AREA from a file, too.
315    
316    checkpoint59c
317    o add S/R and diagnostics for oceanic mixed-layer depth
318    o move GMRedi call after all vertical mixing schemes (including KPP)
319    o pkg/thsice:
320     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
321      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
322    o pkg/obcs:
323     - bug fix for balance code
324    o pkg/seaice:
325      - allow values of SEAICE_elasticParm > 1
326      - add new parameter SEAICE_evpTauRelax as an alternative
327        to SEAICE_elasticParm
328      - make lsr boundary conditions free slip (by default), changes result
329      - add code for no slip boundary conditions for lsr
330      - set minimum of zeta to zero (and not 4e8) (changes results)
331      - add a cap on AREA after advecting AREA if seaice_growth is not called
332    o change calculation of Visbeck K:
333      - no longer depend on tapering scheme; instead, compute slope (limited
334        by GM_maxSlope). this is equivalent to what was comuted before with
335        clipping or linear tappering.
336      - fix vertical averaging (wrong by 1/2 level)
337      - leave the old version (but will not be maintained) within
338        #ifdef OLD_VISBECK_CALC / #endif
339      - update output of exp. ideal_2D_oce
340    o change error catch in calc_r_star to improve vectorization
341    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
342      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
343    o adjoint:
344      Re-organized adjoint checkpointing according to Matt Mazloff
345      (but with modifs/completions/cleanups)
346      Storing is now bundled into large arrays to optimized I/O
347      (and second step in cleanup of the_main_loop)
348    
349    checkpoint59b
350    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
351      - export/import (between ocean & coupler) fields needed for ocean DIC.
352    o pkg/seaice:
353      - get rid of three more exchanges seaice_calc_viscosities (required
354        different loop boundaries in seaice_lsr and seaice_ocean_stress)
355      - bug fix in seaice_ocean_stress (update of lab_sea required)
356      - reduce loop boundaries to necessary minimum also in seaice_evp
357      - go back to the old way of computing deltaC/Z as the adjoint likes that
358        better
359    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
360      passive tracer to an Age Tracer) + update output.txt
361    o pkg/exf:
362      - implement A-grid / C-grid selection for wind-stress input files.
363      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
364      for now, in exf_bulk_largeyeager04.F only :
365      - change implementation for case where windspeed + 2. components wind-stress
366        are read-in. AND use rhoConstFresh to convert evap.
367    o pkg/seaice:
368      - use correct EXCH_UV for wind-forcing (on A-grid).
369      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
370        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
371    o pkg/exf:
372      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
373      EXF_INTERPOLATION:
374      - merge global_with_exf/code version of exf_interp_read.F
375        to the main code ;
376      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
377        reading the file ; Important: This options needs to be defined to recover
378        previous code.
379        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
380      - no longer loose real*8 precision along the way when using exf_iprec=64.
381    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
382      - change discretisation of evp-solver in order to avoid another exchange
383        (changes lab_sea) and clean up a little
384      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
385        help the adjoint (this also changes the results slightly)
386      - add a few "_d 0" where they had been missing in seaice_evp.F
387      - cleaning up: remove unused seaice_calc_rhs.F
388    o pkg/exf: some cleaning-up:
389      - change various "constants" into runtime parameters
390      - cleaned-up Large&Yeager04 routine which should eventually
391        replace exf_bulkformulae.F (changed names of S/R and CPP)
392        and merged various ALLOW_ATM_WIND options
393     only used with thsice pkg (in thsice_get_exf.F):
394      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
395        which are used when useStabilityFct_overIce=TRUE (= the default)
396      - change default values of ice & snow emissivity and scale downward LW
397        by ice & snow emissivity.
398    o pkg/thsice:
399     fix few little problems, in thsice_calc_thickn.F:
400      - growth vertically (and not laterally) if iceFrac == iceMaskMax
401      - melt only laterally if hIce < hThinIce (as the comments say)
402      and in thsice_extend.F:
403      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
404      - start to form ice as soon as the minimum ice-volume is reachable.
405     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
406      and cpl_aim+ocn
407    o pkg/kpp
408     - move computation of surface related input fields to KPP into a new
409       subroutine kpp_forcing_surf.F
410     - remove wrong (within bi,bj loops) EXCH calls.
411     - little cleaning (add argument myThid in last position, cvs header ...)
412     - for now, fix conservation problem by exchanging KPPviscAz (may not
413       be the best fix)
414    o pkg/seaice
415     - check for inconsistent evp parameter/cpp-flag combination
416     - remove leftover errIO flat for obsolete name list error handling
417    o OpenAD
418     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
419    
420    checkpoint59a
421    o pkg/seaice: some parameter clarifications and a little bit of clean up
422    o pkg/thsice: rename run-time parameters:
423       himin       -> hIceMin
424       himin0      -> hThinIce
425       hihig       -> hThickIce
426       i0          -> i0swFrac
427       transCoef   -> bMeltCoef
428       frac_energy -> fracMelting
429      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
430       with default values (for now) that do not change the results.
431      remove old version of thsice vars advection in pkg/seaice.
432    o in FFIELDS.h:
433      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
434      - make pLoad & sIceLoad always available (but still only used if
435         ATMOSPHERIC_LOADING is #define).
436    o pkg/kpp: replaced _KPP_RL with _RL
437    o bug fixes for vertical diffusivity computations when both KPP and
438        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
439        are no longer updating the vertical diffusivity array
440        (passed as argument) but are (re-) setting those arrays.
441    o pkg/seaice: fix bug in evp solver, while doing that
442      - change (improve?) discretization of stress computations for both
443        cgrid-lsr and evp solver
444      - add a new routine to compute strain rates
445      - the above changes lab_sea results
446      - add no slip conditions for evp solver (off by default), lsr-version
447        may follow
448      - fix exchange for shear at Z-points (does not change lab_sea)
449      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
450        (to force the user to pick a time step since there is not "safe" way
451        of choosing it)
452      - add principal stress diagnostics
453      - rearrange fields for evp a little to avoid having to call a: too many
454        exchanges and b: exchanges for stress trensor components which we do
455        not have.
456      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
457        of evp, complete rewrite for lsr case (latter is does not yet work
458        in all cases)
459    o pkg/kpp: add code to have mixing in shelf ice caverns
460      - add myThid to all kpp routines (long overdue)
461    
462    checkpoint59
463    o pkg/exf:
464      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
465        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
466      - move exf header files from lower_case.h to UPPER_CASE.h ;
467        add missing cvs Header & Name
468      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
469      - add namelist param. selectStressGridPosition, exf_monFreq
470      - retire many _CLIM routines, and remove data.exf_clim
471        + params moved to data.exf
472        + climsst, climsss now handled by exf_set_gen, i.e.
473          climss?period=0 refers to constant field,
474          climss?period=-12 to monthly forcing
475      - split up namelists in data.exf
476    o pkg/seaice:
477      - remove seaice_exch and seaice_exch_uv
478      - remove superfluous exchange of theta
479      - add myThid to seaice_budget_ocean/ice
480      - add new interface for atmospheric wind forcing (C-grid only)
481        + new routine
482        + two new field (taux, tauy for stress over ice)
483        + removed one global field (DAIRN) for C-grid case only
484    o pkg/thsise
485      - 2nd set of modifs for thsice adjoint in conjunction with exf
486    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
487    
488    checkpoint58y_post
489    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
490      vertical diffusivity, similar to that in MOM4; turned on using
491      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
492      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
493    o Added capability for 3D specification of background vertical diffusion
494      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
495      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
496      "data" file that contains the 3D vertical diffusivity coefficients.
497    o ice dynamics (pkg/seaice) with thsice thermodynamics:
498      - add code within pkg thsice to advect & diffuse sea-ice fields
499      similar to (and will replace) what has been added in  seaice_advdiff.F,
500      but: - conserving Mass, Heat & Salt.
501           - better when using non-linear advection scheme (not yet fully tested)
502           - can also be used in atmospheric set-up (for now, only the diffusion).
503    
504    checkpoint58x_post
505    o IO option for global-file compact format:
506      - add options when generating topology (utils/exch2/matlab-topology-generator)
507      - add I/O capability (pkg/mdsio).
508      - adapt utils/matlab/rdmds.m to read this format.
509      for now long-line format not yet supported by pkg/mdsio (& exch2).
510    o shelfice: add a few diagnostics
511    
512    checkpoint58w_post
513    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
514      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
515      (and replace horiVertRatio in NH code).
516      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
517                         and tutorial_plume_on_slope (sensitive to truncation)
518    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
519      directly to drive seaice model (C-grid only)
520    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
521     - reintroduce computation of wind from stress,
522     - compute tau (in exf_bulkformulae.F) from windstress averaged to
523       mass points to avoid tau = 0
524     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
525    o rdmnc.m: make it work with "global" files created with gluemnc
526    o rdmnc.m : some improvements in dealing with singleton dimension
527      (tested on all testreport mnc output files).
528    o genmake2: disable pkg/profiles if netcdf test fails.
529    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
530    o move call to cal_readparms up to make calendar parameters/variable available
531      to all packages
532    
533    checkpoint58v_post
534    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
535      useDynP_inEos_Zc tested.
536    o pkg/exf: changes to properly interpolate/mask/scale initial fields
537    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
538      and portions thereof.  See read_cs.txt for description and examples.
539    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
540      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
541      following the great-circle arc between those 2 points.
542    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
543      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
544    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
545     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
546     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
547     - still needs work (not working with some options ; efficiency to improve)
548       and serious testing.
549     - use this scheme for temperature & salinity in 2 advection test exp.:
550       advect_xy & advect_xz, respectively.
551    
552    checkpoint58u_post
553    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
554    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
555    o testreport: add option "-skipdir" to skip some test.
556    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
557      momentum calculation.
558    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
559    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
560      remove checkpoint.F and the_correction_step.F (no longer used);
561      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
562    o add option (linFSConserveTr) to correct for tracer source/sink due to
563      Linear Free surface
564    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
565    o pkg/thsice: fix reading mnc-pickups
566    
567    checkpoint58t_post
568    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
569    o pkg/mdsio:
570     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
571       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
572       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
573     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
574     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
575       either MDS_READ_FIELD or MDS_WRITE_FIELD )
576     - new S/R (to replace MDSWRITEMETA), which allows to write more
577       informations (variable names, time ...) to meta files.
578     - modify rdmds.m to give back the meta file content.
579    o pkg/diagnostics: change vertical interpolation to be safer, and more
580       flexible (define p-levels to interpolate to in data.diagnostics);
581      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
582       diagnostic pointer.
583    o pkg/seaice: more cleaning up of seaice_growth, added many comments
584    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
585    o fix multi-category seaice:
586     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
587       SEAICE_MULTICATEGORY
588     - fix short wave heat flux
589    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
590       and allow to use EVP solver. Change forward lab_sea: test both EVP
591       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
592    o Initial check-in of lab_sea adjoint
593      (very similar to natl_box_adjoint/code_seaice)
594      * used C-grid and EVP solver
595      * used KPP, GM/Redi
596      * uses inAdExact=.TRUE.
597      * gradient checks fail for both ADM and TLM
598        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
599        f.d. gradients actually seem more problematic than ADM, TLM gradients;
600        issue is related to forward mismatch between g77 an ifort
601    o pkg/seaice: overhaul of thermodynamics
602     - growth.F and groatb.F are replaced by new routine seaice_growth.F
603     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
604     - move a few global fields out of SEAICE.h into seaice_growth.F and
605       make them 2D (FICE/QNETO/ ...)
606     - remove FO (it is the same as QNETO)
607     - introduce a few local fields to avoid modifying external fields such
608       as atemp, etc.
609    
610    checkpoint58s_post
611    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
612      changed exf_set_gen.F so that
613        genperiod=0 means input file is one time-constant field and
614        genperiod=-12 means input file contains 12 monthly means
615    o CG2D: use pre-computed solver main-diagonal (stored in common block);
616      this affects truncation error ; generate new output file for exp. which
617      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
618        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
619        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
620        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
621        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
622        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
623    o start implementation of deep-atmosphere and anelastic formulation
624    o verification: remove 2nd copy of input files and use script "prepare_run"
625      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
626    o mom_common/vecinv/fluxform: fix a few initialisation isssues
627  o profiles: fix for multithreaded case  o profiles: fix for multithreaded case
628    
629  o diagnostics: rename few diags:  o diagnostics: rename few diags:

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