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revision 1.712 by jmc, Wed Aug 9 16:02:19 2006 UTC revision 1.925 by jmc, Mon Dec 17 22:06:48 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/ptracers: new version of ptracers pickup:
8      read meta file and write only fields which are needed to restart.
9      ( same logic as main pickup file ; also using pickupStrictlyMatch )
10    o pkg/seaice:
11      - add timescale for melting due to warm mixed layer as a means of
12        setting SEAICE_availHeatFrac more conveniently
13      - add a CPP-flag/runtime parameter check for flooding algorithm
14      - reformulated availHeat in seaice_growth.F to be independent of AREA
15    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
16      unit changes
17    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
18    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
19      SX vector computer.
20    o pkg/seaice:
21      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
22        seaice forcing fields can now be read only through pkg/exf
23      - removed some unused halos
24    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
25    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
26      or U/VICE from U/VWIND before computing U/VSTRESS
27    
28    checkpoint59k
29    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
30      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
31    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
32      all experiments pass when compile with un-initialised var. checking option.
33    o added pkg/salt_plume
34    o script to test restart (for now, in MITgcm_contrib/jmc_script)
35    o pkg/seaice: new read/write pickup version.
36      read meta file and write only fields which are needed to restart.
37      ( same logic as main pickup file ; also using pickupStrictlyMatch )
38    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
39    o lab_sea.hb87: modify the domain & update output.hb87.txt :
40      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
41      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
42      process. Fixed here by closing the domain at the Northern boundary.
43    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
44    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
45      a set of consecutive levels in/from a 3-D array.
46    o pkg/ptracers:
47      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
48      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
49    
50    checkpoint59j
51    o in pkgs: dic, obcs, offline, rbcs:
52      standard way to compute coeff. for time interpolation between 2 time reccords
53      which retains full precision (& make results less dependent on compiler).
54      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
55    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
56      packages instead of reading ice cover and wind speed separately
57    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
58     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
59      to allow to compile customized code before the update)
60    o cleaning-up:
61      - fix CPP instruction syntax in pkg/obcs
62      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
63        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
64      - fix some threads issue in IO parts.
65    o pkg/dic:
66      - add tons of "_d 0" (--> much better testreports !)
67       and then update outputs of tutorial_global_oce_biogeo
68    o pkg/mom_fluxform:
69      add a special version of momentum advection intended to conserve momentum
70      next to a bathymetry step or a coastline edge. (default = off = #undef)
71    o new read/write pickup version:
72      - for now, only implemented for main (mdsio) pickup file.
73      - write out only what is needed to restart; merge pickup_nh , pickup_ph
74        and main pickup together.
75      - read meta file; read only what is needed to restart; stop if a field
76        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
77        if it make sense (even if the restart is not perfect).
78      - if no meta file, assume that pickup to read corresponds exactly to
79        a pickup that would currently be written.
80      - read pickup written in the old format (until checkpoint59i) if it
81        recognizes an old meta file (no field-list).
82      - add a meta file in exp. which starts from a pickup: 2 cases:
83        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
84         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
85        b) a meta file describing the content of the associated pickup file
86         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
87    o pkg/mdsio & pkg/rw:
88      - new routine to read a meta file ; new set of routine to read
89        Multiple-fields file (with meta file).
90    o added open boundary conditions capability for seaice
91        HSNOW, HSALT, UICE, and VICE
92    
93    checkpoint59i
94    o adjoint:
95      * fix multiDimAdvection adjoint
96        (partial recomputation problem by TAF for fVerT(:,:,kDown)
97        and comlev1 size definition (maxpass vs. max. number of tracers)
98      * verification/global_ocean.90x45x15 adjoint now tests
99        NLFS and multiDimAdvection using DST3 (=30)
100      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
101    o pkg/kpp: add "_d 0" to real constant (if missing);
102      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
103      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
104    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
105      for internal parameters related to restart process (formerly from PARAMS.h)
106      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
107    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
108      as argument. (only atm2d & obcs write_pickup have not yet been updated)
109    o pkg/monitor:
110      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
111      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
112      - account for deep Atmosphere factor and density factor (anelastic)
113    o added open boundary conditions capability for seaice HEFF and AREA
114    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
115      thermodynamics
116      - requires a little reorganization, which affects the testreport results
117        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
118        so that now the conservative form is tested
119      - add a few comments
120    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
121    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
122    o add new diagnostics to seaice: advective, diffusive fluxes (only for
123      multidim-advection, for scheme 2 they are not filled) and transports,
124      thermodynamic growth rates
125    o change units of EmPmR (inside the code, + within coupling interface)
126      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
127      Affects results @ truncation level (cg2d match) and update output of
128       experiments: lab_sea(6), global_ocean.90x40x15(10),
129      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
130      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
131      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
132      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
133    
134    checkpoint59h
135    o pkg/exf:
136      - improve vectorization by moving if-statement out of loops in
137        exf_mapfields, exf_radiation
138      - exf_bulkformulae.F: introduce 2D fields and vectorize code
139    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
140    o testreport:
141      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
142        monitor & update offline_exf_seaice exp. output.
143      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
144    o pkg/seaice:
145      - bug fix in the evp solver: boundary conditions were affected be
146        masking of zMax/zMin (changes results)
147      - minor bug fix in boundary conditions in seaice_calc_strainrates
148        (changes results for no_slip)
149      - seaice_lsr.F: make interpolation of eta dependent on boundaries
150      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
151      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
152        stress formulation and no-slip boundary conditions
153    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
154      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
155    o pkg/seaice: a first HSALT time stepping equation has been checked in
156    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
157      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
158      without requiring DO-IF statements
159    o pkg/thsice:
160      use continuous power-law function for partition of energy between lateral
161      melting/freezing and thinning/thickening ; old code using step function
162      still available with #undef THSICE_FRACEN_POWERLAW
163      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
164    o testreport: change AD testing : check against results/output_adm.txt
165      using same scripts as for forward test.
166    
167    checkpoint59g
168    o adjoint testing: in preparation for changing testreport:
169      - output format: cost and grad written on separated lines
170      - ad output results in directory "results" (instead of "results_ad")
171    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
172    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
173    o pkg/ecco: allow user defined cost function contributions
174    o testreport:
175      Allow to choose (per experiment) the list of tested output variables
176       and the main variable (used to issue a pass/FAIL ) ;
177      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
178      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
179      Also modify printing of summary:
180       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
181       b) echo the list of tested variables in the individual summary.txt of
182          each experiment.
183    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
184      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
185      (but still depend on the tile decompostion of the domain).
186    o pkg/seaice: change a discretization detail to make the B-grid code
187      "more symmetric". This change is likely to remove all "ridges/leads" that
188      where quasi-aligned with the grid in B-grid solutions. It may also be
189      the solution to the stress coupling issues with the B-grid.
190    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
191      remove .cvsignore from input dir. (since testreport no longer run here).
192    o pkg/thsice:
193     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
194     - fix reshaping of sea-ice just after advection:
195       melt all the ice only if ice-volume is too small.
196     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
197       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
198     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
199    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
200      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
201    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
202      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
203      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
204      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
205      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
206      -> update output.txt
207    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
208     this affects truncation error: -> update output.txt of exp:
209      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
210      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
211    
212    checkpoint59f
213    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
214    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
215      a bounded range (in forward mode)
216    o pkg/ecco, ctrl, autodiff and mom_common:
217     internal parameter controls, completements of implementations
218    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
219    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
220      (not seem any difference in testing results).
221    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
222       at face corners.
223    o pkg/generic_advdiff:
224     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
225      loop range indices for computing vertical advection tendency
226      and do the calculation in the interior only (no overlap) ;
227      for now, only implemented for SOM advection (to save CPU time).
228     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
229    o exch2 adjoint
230      First set of changes:
231      - add exch2 hand-written adjoint templates
232      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
233        This will require cleanup in pkg/autodiff/*.F
234        (changed routines currently kept separate in verif. code/)
235      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
236        that used to hide exch2 or cubed-sphere specific code
237        (commented via 'cph-exch2')
238    o pkg/seaice
239      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
240    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
241       output of global_ocean.cs32x15.thsice .
242    
243    checkpoint59e
244    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
245      for B-grid vector (not yet tested) and C-grid vector (<- only used
246      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
247    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
248      (#ifdef ALLOW_SALT_PLUME)
249    o gather_2d/scatter_2d: removed halo regions
250    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
251      scheme and the corresponding test case (under front_relax dir). For now,
252      only available with Skew-flux form and not yet tested in realistic set-up.
253      adjoint: store directives updated, but gradient checks deteriorated,
254      so maybe GM/Redi adjoint is now broken.
255    o seaice adjoint
256      * add AREA, HEFF, HSNOW as control variable
257        (should not change lab_sea results)
258      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
259    o pkg/seaice:
260      * added computation of saltFlux in seaice_growth;
261        For time being, sea ice salinity is assumed constant
262        contribution of snow flooding to freshening of sea ice is neglected.
263        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
264        defaults to 0.0 in order to maintain backward compatibility.
265        Typical values for SEAICE_salinity are 4 to 10 g/kg.
266      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
267      * added SEAICE_availHeatFrac, which specifies fraction of surface level
268        heat content used to melt or grow ice
269      * commented out cap of HICE: it helps keep ice thinner
270      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
271      * applied OBCS T/S mask to HEFFM sea ice mask
272    
273    checkpoint59d
274    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
275     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
276     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
277    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
278     and change default value of parameter "GM_Small_Number";
279     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
280       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
281       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
282    o pkg/ecco: cost function when applying pkg/smooth to controls
283    o pkg/ctrl: add forcingPrecond run time parameter
284    o pkg/seaice:
285     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
286     - fix bug in metric terms of u-equation in LSR solver (implicit part),
287       changes verification/lab_sea
288     - rearrange implicit part of u-equation in LSR solver to make it easier to
289       read, understand, and debug. This causes changes at the truncation level.
290     - fix (serious) bug in the boundary conditions (sign error in the implicit
291       part) of the LSR solver. Changes all LSR results.
292     - fixed problem with HSNOW initialization to avoid thick snow when AREA
293       is initilized with small values - does not change lab_sea results.
294     - added HsnowFile initialization capability
295    o pkg/smooth: addition to model/src and pkg/ctrl so allow
296     initialization of pkg/smooth and application to control vector
297    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
298    o dependencies: pkg/profiles requires pkg/cal
299    o pkg/profiles:
300     - added option ALLOW_PROFILES_GENERICGRID
301         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
302         that interpolation information (grid points and coefficients) is provided
303         within the netcdf input files.
304         -> sample matlab scripts can be found in MITgcm_contrib/gael
305         that allow you to prepare netcdf input files.
306     - also modified: cleaner include statements, cleaner error print statements,
307       cleaner stops when error, and more tests of the netcdf input files consistency.
308    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
309    o pkg/seaice:
310     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
311       requires a new routine: seaice_diagnostics_fill.F
312     - make sure that seaice does not move if not forced (pressure replacement
313       method, Hibler and Ip, 1995), changes results
314     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
315     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
316       It is turned off by default (=-1.), because it changes the results.
317     - make it possible to read AREA from a file, too.
318    
319    checkpoint59c
320    o add S/R and diagnostics for oceanic mixed-layer depth
321    o move GMRedi call after all vertical mixing schemes (including KPP)
322    o pkg/thsice:
323     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
324      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
325    o pkg/obcs:
326     - bug fix for balance code
327    o pkg/seaice:
328      - allow values of SEAICE_elasticParm > 1
329      - add new parameter SEAICE_evpTauRelax as an alternative
330        to SEAICE_elasticParm
331      - make lsr boundary conditions free slip (by default), changes result
332      - add code for no slip boundary conditions for lsr
333      - set minimum of zeta to zero (and not 4e8) (changes results)
334      - add a cap on AREA after advecting AREA if seaice_growth is not called
335    o change calculation of Visbeck K:
336      - no longer depend on tapering scheme; instead, compute slope (limited
337        by GM_maxSlope). this is equivalent to what was comuted before with
338        clipping or linear tappering.
339      - fix vertical averaging (wrong by 1/2 level)
340      - leave the old version (but will not be maintained) within
341        #ifdef OLD_VISBECK_CALC / #endif
342      - update output of exp. ideal_2D_oce
343    o change error catch in calc_r_star to improve vectorization
344    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
345      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
346    o adjoint:
347      Re-organized adjoint checkpointing according to Matt Mazloff
348      (but with modifs/completions/cleanups)
349      Storing is now bundled into large arrays to optimized I/O
350      (and second step in cleanup of the_main_loop)
351    
352    checkpoint59b
353    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
354      - export/import (between ocean & coupler) fields needed for ocean DIC.
355    o pkg/seaice:
356      - get rid of three more exchanges seaice_calc_viscosities (required
357        different loop boundaries in seaice_lsr and seaice_ocean_stress)
358      - bug fix in seaice_ocean_stress (update of lab_sea required)
359      - reduce loop boundaries to necessary minimum also in seaice_evp
360      - go back to the old way of computing deltaC/Z as the adjoint likes that
361        better
362    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
363      passive tracer to an Age Tracer) + update output.txt
364    o pkg/exf:
365      - implement A-grid / C-grid selection for wind-stress input files.
366      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
367      for now, in exf_bulk_largeyeager04.F only :
368      - change implementation for case where windspeed + 2. components wind-stress
369        are read-in. AND use rhoConstFresh to convert evap.
370    o pkg/seaice:
371      - use correct EXCH_UV for wind-forcing (on A-grid).
372      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
373        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
374    o pkg/exf:
375      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
376      EXF_INTERPOLATION:
377      - merge global_with_exf/code version of exf_interp_read.F
378        to the main code ;
379      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
380        reading the file ; Important: This options needs to be defined to recover
381        previous code.
382        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
383      - no longer loose real*8 precision along the way when using exf_iprec=64.
384    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
385      - change discretisation of evp-solver in order to avoid another exchange
386        (changes lab_sea) and clean up a little
387      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
388        help the adjoint (this also changes the results slightly)
389      - add a few "_d 0" where they had been missing in seaice_evp.F
390      - cleaning up: remove unused seaice_calc_rhs.F
391    o pkg/exf: some cleaning-up:
392      - change various "constants" into runtime parameters
393      - cleaned-up Large&Yeager04 routine which should eventually
394        replace exf_bulkformulae.F (changed names of S/R and CPP)
395        and merged various ALLOW_ATM_WIND options
396     only used with thsice pkg (in thsice_get_exf.F):
397      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
398        which are used when useStabilityFct_overIce=TRUE (= the default)
399      - change default values of ice & snow emissivity and scale downward LW
400        by ice & snow emissivity.
401    o pkg/thsice:
402     fix few little problems, in thsice_calc_thickn.F:
403      - growth vertically (and not laterally) if iceFrac == iceMaskMax
404      - melt only laterally if hIce < hThinIce (as the comments say)
405      and in thsice_extend.F:
406      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
407      - start to form ice as soon as the minimum ice-volume is reachable.
408     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
409      and cpl_aim+ocn
410    o pkg/kpp
411     - move computation of surface related input fields to KPP into a new
412       subroutine kpp_forcing_surf.F
413     - remove wrong (within bi,bj loops) EXCH calls.
414     - little cleaning (add argument myThid in last position, cvs header ...)
415     - for now, fix conservation problem by exchanging KPPviscAz (may not
416       be the best fix)
417    o pkg/seaice
418     - check for inconsistent evp parameter/cpp-flag combination
419     - remove leftover errIO flat for obsolete name list error handling
420    o OpenAD
421     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
422    
423    checkpoint59a
424    o pkg/seaice: some parameter clarifications and a little bit of clean up
425    o pkg/thsice: rename run-time parameters:
426       himin       -> hIceMin
427       himin0      -> hThinIce
428       hihig       -> hThickIce
429       i0          -> i0swFrac
430       transCoef   -> bMeltCoef
431       frac_energy -> fracMelting
432      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
433       with default values (for now) that do not change the results.
434      remove old version of thsice vars advection in pkg/seaice.
435    o in FFIELDS.h:
436      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
437      - make pLoad & sIceLoad always available (but still only used if
438         ATMOSPHERIC_LOADING is #define).
439    o pkg/kpp: replaced _KPP_RL with _RL
440    o bug fixes for vertical diffusivity computations when both KPP and
441        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
442        are no longer updating the vertical diffusivity array
443        (passed as argument) but are (re-) setting those arrays.
444    o pkg/seaice: fix bug in evp solver, while doing that
445      - change (improve?) discretization of stress computations for both
446        cgrid-lsr and evp solver
447      - add a new routine to compute strain rates
448      - the above changes lab_sea results
449      - add no slip conditions for evp solver (off by default), lsr-version
450        may follow
451      - fix exchange for shear at Z-points (does not change lab_sea)
452      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
453        (to force the user to pick a time step since there is not "safe" way
454        of choosing it)
455      - add principal stress diagnostics
456      - rearrange fields for evp a little to avoid having to call a: too many
457        exchanges and b: exchanges for stress trensor components which we do
458        not have.
459      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
460        of evp, complete rewrite for lsr case (latter is does not yet work
461        in all cases)
462    o pkg/kpp: add code to have mixing in shelf ice caverns
463      - add myThid to all kpp routines (long overdue)
464    
465    checkpoint59
466    o pkg/exf:
467      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
468        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
469      - move exf header files from lower_case.h to UPPER_CASE.h ;
470        add missing cvs Header & Name
471      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
472      - add namelist param. selectStressGridPosition, exf_monFreq
473      - retire many _CLIM routines, and remove data.exf_clim
474        + params moved to data.exf
475        + climsst, climsss now handled by exf_set_gen, i.e.
476          climss?period=0 refers to constant field,
477          climss?period=-12 to monthly forcing
478      - split up namelists in data.exf
479    o pkg/seaice:
480      - remove seaice_exch and seaice_exch_uv
481      - remove superfluous exchange of theta
482      - add myThid to seaice_budget_ocean/ice
483      - add new interface for atmospheric wind forcing (C-grid only)
484        + new routine
485        + two new field (taux, tauy for stress over ice)
486        + removed one global field (DAIRN) for C-grid case only
487    o pkg/thsise
488      - 2nd set of modifs for thsice adjoint in conjunction with exf
489    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
490    
491    checkpoint58y_post
492    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
493      vertical diffusivity, similar to that in MOM4; turned on using
494      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
495      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
496    o Added capability for 3D specification of background vertical diffusion
497      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
498      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
499      "data" file that contains the 3D vertical diffusivity coefficients.
500    o ice dynamics (pkg/seaice) with thsice thermodynamics:
501      - add code within pkg thsice to advect & diffuse sea-ice fields
502      similar to (and will replace) what has been added in  seaice_advdiff.F,
503      but: - conserving Mass, Heat & Salt.
504           - better when using non-linear advection scheme (not yet fully tested)
505           - can also be used in atmospheric set-up (for now, only the diffusion).
506    
507    checkpoint58x_post
508    o IO option for global-file compact format:
509      - add options when generating topology (utils/exch2/matlab-topology-generator)
510      - add I/O capability (pkg/mdsio).
511      - adapt utils/matlab/rdmds.m to read this format.
512      for now long-line format not yet supported by pkg/mdsio (& exch2).
513    o shelfice: add a few diagnostics
514    
515    checkpoint58w_post
516    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
517      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
518      (and replace horiVertRatio in NH code).
519      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
520                         and tutorial_plume_on_slope (sensitive to truncation)
521    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
522      directly to drive seaice model (C-grid only)
523    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
524     - reintroduce computation of wind from stress,
525     - compute tau (in exf_bulkformulae.F) from windstress averaged to
526       mass points to avoid tau = 0
527     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
528    o rdmnc.m: make it work with "global" files created with gluemnc
529    o rdmnc.m : some improvements in dealing with singleton dimension
530      (tested on all testreport mnc output files).
531    o genmake2: disable pkg/profiles if netcdf test fails.
532    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
533    o move call to cal_readparms up to make calendar parameters/variable available
534      to all packages
535    
536    checkpoint58v_post
537    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
538      useDynP_inEos_Zc tested.
539    o pkg/exf: changes to properly interpolate/mask/scale initial fields
540    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
541      and portions thereof.  See read_cs.txt for description and examples.
542    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
543      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
544      following the great-circle arc between those 2 points.
545    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
546      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
547    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
548     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
549     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
550     - still needs work (not working with some options ; efficiency to improve)
551       and serious testing.
552     - use this scheme for temperature & salinity in 2 advection test exp.:
553       advect_xy & advect_xz, respectively.
554    
555    checkpoint58u_post
556    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
557    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
558    o testreport: add option "-skipdir" to skip some test.
559    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
560      momentum calculation.
561    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
562    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
563      remove checkpoint.F and the_correction_step.F (no longer used);
564      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
565    o add option (linFSConserveTr) to correct for tracer source/sink due to
566      Linear Free surface
567    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
568    o pkg/thsice: fix reading mnc-pickups
569    
570    checkpoint58t_post
571    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
572    o pkg/mdsio:
573     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
574       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
575       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
576     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
577     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
578       either MDS_READ_FIELD or MDS_WRITE_FIELD )
579     - new S/R (to replace MDSWRITEMETA), which allows to write more
580       informations (variable names, time ...) to meta files.
581     - modify rdmds.m to give back the meta file content.
582    o pkg/diagnostics: change vertical interpolation to be safer, and more
583       flexible (define p-levels to interpolate to in data.diagnostics);
584      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
585       diagnostic pointer.
586    o pkg/seaice: more cleaning up of seaice_growth, added many comments
587    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
588    o fix multi-category seaice:
589     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
590       SEAICE_MULTICATEGORY
591     - fix short wave heat flux
592    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
593       and allow to use EVP solver. Change forward lab_sea: test both EVP
594       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
595    o Initial check-in of lab_sea adjoint
596      (very similar to natl_box_adjoint/code_seaice)
597      * used C-grid and EVP solver
598      * used KPP, GM/Redi
599      * uses inAdExact=.TRUE.
600      * gradient checks fail for both ADM and TLM
601        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
602        f.d. gradients actually seem more problematic than ADM, TLM gradients;
603        issue is related to forward mismatch between g77 an ifort
604    o pkg/seaice: overhaul of thermodynamics
605     - growth.F and groatb.F are replaced by new routine seaice_growth.F
606     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
607     - move a few global fields out of SEAICE.h into seaice_growth.F and
608       make them 2D (FICE/QNETO/ ...)
609     - remove FO (it is the same as QNETO)
610     - introduce a few local fields to avoid modifying external fields such
611       as atemp, etc.
612    
613    checkpoint58s_post
614    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
615      changed exf_set_gen.F so that
616        genperiod=0 means input file is one time-constant field and
617        genperiod=-12 means input file contains 12 monthly means
618    o CG2D: use pre-computed solver main-diagonal (stored in common block);
619      this affects truncation error ; generate new output file for exp. which
620      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
621        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
622        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
623        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
624        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
625        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
626    o start implementation of deep-atmosphere and anelastic formulation
627    o verification: remove 2nd copy of input files and use script "prepare_run"
628      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
629    o mom_common/vecinv/fluxform: fix a few initialisation isssues
630    o profiles: fix for multithreaded case
631    
632    o diagnostics: rename few diags:
633      s/'PRESSURE'/'RCENTER '/g
634      s/'TICE    '/'oceFreez'/g
635      s/'TAUX    '/'oceTAUX '/g
636      s/'TAUY    '/'oceTAUY '/g
637      s/'SWFLUX  '/'oceQsw  '/g
638      s/DIFx/DFxE/g
639      s/DIFy/DFyE/g
640      and add few ocean-forcing diagnostics:
641      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
642    o modifications to pkg/seaice/growth.F and budget.F, which change results of
643      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
644      as actual snow thickness.  It now refers everywhere to effective snow
645      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
646    
647    checkpoint58r_post
648    o modifications to pkg/seaice/growth.F, which change results of
649      lab_sea experiment: fixes pertain to melting snow over open water, to
650      masking EVAP under sea ice, and to using the correct AREA variable for
651      computations of EVAP, PRECIP, HSNOW, and GHEFF
652    o add ability to read bathy, salt, and theta using MNC (off by def)
653    o add flooding algorithm and advection of HSNOW for pkg/seaice;
654      both are turned off by default and do no change any results
655    o seaice advection with pkg/thsice: a step toward the use of non-linear
656      advection scheme, but #ifdef or commented out for now (requires more EXCH).
657    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
658      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
659      in natl_box (affects results @ truncation level: update output.txt)
660    o multi-threading and IO:
661      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
662      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
663        (needed to work with SingleCpuIO): tested in all verif. exp.
664    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
665      affects the results (but none of the verification test uses this scheme).
666    o Adding some pkg/diagnostics capability to pkg/seaice
667      (will certainly be subject to changes)
668    o ctrl: adding new control variables:
669      lwflux, lwdown, evap, snowprecip, apressure, runoff
670    
671    checkpoint58q_post
672    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
673      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
674      high_res_cube configuration by 4% on Columbia.
675    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
676      add (in global_with_exf/code) a version of EXF_INTERP_READ without
677      dynamical allocation (seems to work in multi-threaded).
678    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
679      single CPU io) so that TAF does not have to see EESUPPORT.h
680    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
681    
682    checkpoint58p_post
683    o obcs: stop if obcs is used with useCDscheme = .true.
684    o shelfice:
685     - fix a sign error so that no slip at shelfice interface works
686     - remove stop for combination non-hydrostatic code and shelfice. That does
687       not mean, that the results are correct, but at least they are numerically
688       stable
689    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
690    o added adjoint exch routined for all exch*3d* routines
691      and updated flow directives
692    
693    checkpoint58o_post
694    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
695      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
696    o change controling S/R for writing pickup file (new S/R do_write_pickup)
697      and clean-up reading/writing of pickup files.
698    o fix local version of read/write pickup (NH part) in rotating_tank/code
699    o simplify EXCH interface:
700     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
701     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
702    o added the regrid package
703    o shelfice:
704     - add a simple boundary layer scheme to reduce noise
705     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
706    
707    checkpoint58n_post
708    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
709       local variable (not in common block).
710  o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.  o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
711    - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);    - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
712    - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls    - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls

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