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revision 1.754 by mlosch, Thu Dec 14 08:23:13 2006 UTC revision 1.929 by dimitri, Fri Dec 21 01:40:28 2007 UTC
# Line 3  $Name$ Line 3  $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs and pkg/seaice:
8      - do not set uice and vice to zero when OB*icefile are unspecified
9      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
10      - moved seaice tracer obcs after call to seaice_growth
11    o pkg/salt_plume: added various options for salt plume depth
12      criterion and for vertical distribution of the salt
13    
14    checkpoint59l
15    o pkg/ptracers: new version of ptracers pickup:
16      read meta file and write only fields which are needed to restart.
17      ( same logic as main pickup file ; also using pickupStrictlyMatch )
18    o pkg/seaice:
19      - add timescale for melting due to warm mixed layer as a means of
20        setting SEAICE_availHeatFrac more conveniently
21      - add a CPP-flag/runtime parameter check for flooding algorithm
22      - reformulated availHeat in seaice_growth.F to be independent of AREA
23    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
24      unit changes
25    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
26    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
27      SX vector computer.
28    o pkg/seaice:
29      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
30        seaice forcing fields can now be read only through pkg/exf
31      - removed some unused halos
32    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
33    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
34      or U/VICE from U/VWIND before computing U/VSTRESS
35    
36    checkpoint59k
37    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
38      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
39    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
40      all experiments pass when compile with un-initialised var. checking option.
41    o added pkg/salt_plume
42    o script to test restart (for now, in MITgcm_contrib/jmc_script)
43    o pkg/seaice: new read/write pickup version.
44      read meta file and write only fields which are needed to restart.
45      ( same logic as main pickup file ; also using pickupStrictlyMatch )
46    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
47    o lab_sea.hb87: modify the domain & update output.hb87.txt :
48      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
49      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
50      process. Fixed here by closing the domain at the Northern boundary.
51    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
52    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
53      a set of consecutive levels in/from a 3-D array.
54    o pkg/ptracers:
55      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
56      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
57    
58    checkpoint59j
59    o in pkgs: dic, obcs, offline, rbcs:
60      standard way to compute coeff. for time interpolation between 2 time reccords
61      which retains full precision (& make results less dependent on compiler).
62      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
63    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
64      packages instead of reading ice cover and wind speed separately
65    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
66     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
67      to allow to compile customized code before the update)
68    o cleaning-up:
69      - fix CPP instruction syntax in pkg/obcs
70      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
71        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
72      - fix some threads issue in IO parts.
73    o pkg/dic:
74      - add tons of "_d 0" (--> much better testreports !)
75       and then update outputs of tutorial_global_oce_biogeo
76    o pkg/mom_fluxform:
77      add a special version of momentum advection intended to conserve momentum
78      next to a bathymetry step or a coastline edge. (default = off = #undef)
79    o new read/write pickup version:
80      - for now, only implemented for main (mdsio) pickup file.
81      - write out only what is needed to restart; merge pickup_nh , pickup_ph
82        and main pickup together.
83      - read meta file; read only what is needed to restart; stop if a field
84        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
85        if it make sense (even if the restart is not perfect).
86      - if no meta file, assume that pickup to read corresponds exactly to
87        a pickup that would currently be written.
88      - read pickup written in the old format (until checkpoint59i) if it
89        recognizes an old meta file (no field-list).
90      - add a meta file in exp. which starts from a pickup: 2 cases:
91        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
92         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
93        b) a meta file describing the content of the associated pickup file
94         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
95    o pkg/mdsio & pkg/rw:
96      - new routine to read a meta file ; new set of routine to read
97        Multiple-fields file (with meta file).
98    o added open boundary conditions capability for seaice
99        HSNOW, HSALT, UICE, and VICE
100    
101    checkpoint59i
102    o adjoint:
103      * fix multiDimAdvection adjoint
104        (partial recomputation problem by TAF for fVerT(:,:,kDown)
105        and comlev1 size definition (maxpass vs. max. number of tracers)
106      * verification/global_ocean.90x45x15 adjoint now tests
107        NLFS and multiDimAdvection using DST3 (=30)
108      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
109    o pkg/kpp: add "_d 0" to real constant (if missing);
110      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
111      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
112    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
113      for internal parameters related to restart process (formerly from PARAMS.h)
114      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
115    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
116      as argument. (only atm2d & obcs write_pickup have not yet been updated)
117    o pkg/monitor:
118      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
119      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
120      - account for deep Atmosphere factor and density factor (anelastic)
121    o added open boundary conditions capability for seaice HEFF and AREA
122    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
123      thermodynamics
124      - requires a little reorganization, which affects the testreport results
125        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
126        so that now the conservative form is tested
127      - add a few comments
128    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
129    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
130    o add new diagnostics to seaice: advective, diffusive fluxes (only for
131      multidim-advection, for scheme 2 they are not filled) and transports,
132      thermodynamic growth rates
133    o change units of EmPmR (inside the code, + within coupling interface)
134      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
135      Affects results @ truncation level (cg2d match) and update output of
136       experiments: lab_sea(6), global_ocean.90x40x15(10),
137      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
138      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
139      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
140      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
141    
142    checkpoint59h
143    o pkg/exf:
144      - improve vectorization by moving if-statement out of loops in
145        exf_mapfields, exf_radiation
146      - exf_bulkformulae.F: introduce 2D fields and vectorize code
147    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
148    o testreport:
149      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
150        monitor & update offline_exf_seaice exp. output.
151      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
152    o pkg/seaice:
153      - bug fix in the evp solver: boundary conditions were affected be
154        masking of zMax/zMin (changes results)
155      - minor bug fix in boundary conditions in seaice_calc_strainrates
156        (changes results for no_slip)
157      - seaice_lsr.F: make interpolation of eta dependent on boundaries
158      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
159      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
160        stress formulation and no-slip boundary conditions
161    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
162      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
163    o pkg/seaice: a first HSALT time stepping equation has been checked in
164    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
165      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
166      without requiring DO-IF statements
167    o pkg/thsice:
168      use continuous power-law function for partition of energy between lateral
169      melting/freezing and thinning/thickening ; old code using step function
170      still available with #undef THSICE_FRACEN_POWERLAW
171      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
172    o testreport: change AD testing : check against results/output_adm.txt
173      using same scripts as for forward test.
174    
175    checkpoint59g
176    o adjoint testing: in preparation for changing testreport:
177      - output format: cost and grad written on separated lines
178      - ad output results in directory "results" (instead of "results_ad")
179    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
180    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
181    o pkg/ecco: allow user defined cost function contributions
182    o testreport:
183      Allow to choose (per experiment) the list of tested output variables
184       and the main variable (used to issue a pass/FAIL ) ;
185      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
186      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
187      Also modify printing of summary:
188       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
189       b) echo the list of tested variables in the individual summary.txt of
190          each experiment.
191    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
192      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
193      (but still depend on the tile decompostion of the domain).
194    o pkg/seaice: change a discretization detail to make the B-grid code
195      "more symmetric". This change is likely to remove all "ridges/leads" that
196      where quasi-aligned with the grid in B-grid solutions. It may also be
197      the solution to the stress coupling issues with the B-grid.
198    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
199      remove .cvsignore from input dir. (since testreport no longer run here).
200    o pkg/thsice:
201     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
202     - fix reshaping of sea-ice just after advection:
203       melt all the ice only if ice-volume is too small.
204     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
205       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
206     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
207    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
208      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
209    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
210      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
211      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
212      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
213      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
214      -> update output.txt
215    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
216     this affects truncation error: -> update output.txt of exp:
217      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
218      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
219    
220    checkpoint59f
221    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
222    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
223      a bounded range (in forward mode)
224    o pkg/ecco, ctrl, autodiff and mom_common:
225     internal parameter controls, completements of implementations
226    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
227    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
228      (not seem any difference in testing results).
229    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
230       at face corners.
231    o pkg/generic_advdiff:
232     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
233      loop range indices for computing vertical advection tendency
234      and do the calculation in the interior only (no overlap) ;
235      for now, only implemented for SOM advection (to save CPU time).
236     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
237    o exch2 adjoint
238      First set of changes:
239      - add exch2 hand-written adjoint templates
240      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
241        This will require cleanup in pkg/autodiff/*.F
242        (changed routines currently kept separate in verif. code/)
243      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
244        that used to hide exch2 or cubed-sphere specific code
245        (commented via 'cph-exch2')
246    o pkg/seaice
247      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
248    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
249       output of global_ocean.cs32x15.thsice .
250    
251    checkpoint59e
252    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
253      for B-grid vector (not yet tested) and C-grid vector (<- only used
254      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
255    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
256      (#ifdef ALLOW_SALT_PLUME)
257    o gather_2d/scatter_2d: removed halo regions
258    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
259      scheme and the corresponding test case (under front_relax dir). For now,
260      only available with Skew-flux form and not yet tested in realistic set-up.
261      adjoint: store directives updated, but gradient checks deteriorated,
262      so maybe GM/Redi adjoint is now broken.
263    o seaice adjoint
264      * add AREA, HEFF, HSNOW as control variable
265        (should not change lab_sea results)
266      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
267    o pkg/seaice:
268      * added computation of saltFlux in seaice_growth;
269        For time being, sea ice salinity is assumed constant
270        contribution of snow flooding to freshening of sea ice is neglected.
271        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
272        defaults to 0.0 in order to maintain backward compatibility.
273        Typical values for SEAICE_salinity are 4 to 10 g/kg.
274      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
275      * added SEAICE_availHeatFrac, which specifies fraction of surface level
276        heat content used to melt or grow ice
277      * commented out cap of HICE: it helps keep ice thinner
278      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
279      * applied OBCS T/S mask to HEFFM sea ice mask
280    
281    checkpoint59d
282    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
283     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
284     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
285    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
286     and change default value of parameter "GM_Small_Number";
287     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
288       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
289       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
290    o pkg/ecco: cost function when applying pkg/smooth to controls
291    o pkg/ctrl: add forcingPrecond run time parameter
292    o pkg/seaice:
293     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
294     - fix bug in metric terms of u-equation in LSR solver (implicit part),
295       changes verification/lab_sea
296     - rearrange implicit part of u-equation in LSR solver to make it easier to
297       read, understand, and debug. This causes changes at the truncation level.
298     - fix (serious) bug in the boundary conditions (sign error in the implicit
299       part) of the LSR solver. Changes all LSR results.
300     - fixed problem with HSNOW initialization to avoid thick snow when AREA
301       is initilized with small values - does not change lab_sea results.
302     - added HsnowFile initialization capability
303    o pkg/smooth: addition to model/src and pkg/ctrl so allow
304     initialization of pkg/smooth and application to control vector
305    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
306    o dependencies: pkg/profiles requires pkg/cal
307    o pkg/profiles:
308     - added option ALLOW_PROFILES_GENERICGRID
309         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
310         that interpolation information (grid points and coefficients) is provided
311         within the netcdf input files.
312         -> sample matlab scripts can be found in MITgcm_contrib/gael
313         that allow you to prepare netcdf input files.
314     - also modified: cleaner include statements, cleaner error print statements,
315       cleaner stops when error, and more tests of the netcdf input files consistency.
316    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
317    o pkg/seaice:
318     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
319       requires a new routine: seaice_diagnostics_fill.F
320     - make sure that seaice does not move if not forced (pressure replacement
321       method, Hibler and Ip, 1995), changes results
322     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
323     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
324       It is turned off by default (=-1.), because it changes the results.
325     - make it possible to read AREA from a file, too.
326    
327    checkpoint59c
328    o add S/R and diagnostics for oceanic mixed-layer depth
329    o move GMRedi call after all vertical mixing schemes (including KPP)
330    o pkg/thsice:
331     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
332      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
333    o pkg/obcs:
334     - bug fix for balance code
335    o pkg/seaice:
336      - allow values of SEAICE_elasticParm > 1
337      - add new parameter SEAICE_evpTauRelax as an alternative
338        to SEAICE_elasticParm
339      - make lsr boundary conditions free slip (by default), changes result
340      - add code for no slip boundary conditions for lsr
341      - set minimum of zeta to zero (and not 4e8) (changes results)
342      - add a cap on AREA after advecting AREA if seaice_growth is not called
343    o change calculation of Visbeck K:
344      - no longer depend on tapering scheme; instead, compute slope (limited
345        by GM_maxSlope). this is equivalent to what was comuted before with
346        clipping or linear tappering.
347      - fix vertical averaging (wrong by 1/2 level)
348      - leave the old version (but will not be maintained) within
349        #ifdef OLD_VISBECK_CALC / #endif
350      - update output of exp. ideal_2D_oce
351    o change error catch in calc_r_star to improve vectorization
352    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
353      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
354    o adjoint:
355      Re-organized adjoint checkpointing according to Matt Mazloff
356      (but with modifs/completions/cleanups)
357      Storing is now bundled into large arrays to optimized I/O
358      (and second step in cleanup of the_main_loop)
359    
360    checkpoint59b
361    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
362      - export/import (between ocean & coupler) fields needed for ocean DIC.
363    o pkg/seaice:
364      - get rid of three more exchanges seaice_calc_viscosities (required
365        different loop boundaries in seaice_lsr and seaice_ocean_stress)
366      - bug fix in seaice_ocean_stress (update of lab_sea required)
367      - reduce loop boundaries to necessary minimum also in seaice_evp
368      - go back to the old way of computing deltaC/Z as the adjoint likes that
369        better
370    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
371      passive tracer to an Age Tracer) + update output.txt
372    o pkg/exf:
373      - implement A-grid / C-grid selection for wind-stress input files.
374      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
375      for now, in exf_bulk_largeyeager04.F only :
376      - change implementation for case where windspeed + 2. components wind-stress
377        are read-in. AND use rhoConstFresh to convert evap.
378    o pkg/seaice:
379      - use correct EXCH_UV for wind-forcing (on A-grid).
380      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
381        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
382    o pkg/exf:
383      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
384      EXF_INTERPOLATION:
385      - merge global_with_exf/code version of exf_interp_read.F
386        to the main code ;
387      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
388        reading the file ; Important: This options needs to be defined to recover
389        previous code.
390        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
391      - no longer loose real*8 precision along the way when using exf_iprec=64.
392    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
393      - change discretisation of evp-solver in order to avoid another exchange
394        (changes lab_sea) and clean up a little
395      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
396        help the adjoint (this also changes the results slightly)
397      - add a few "_d 0" where they had been missing in seaice_evp.F
398      - cleaning up: remove unused seaice_calc_rhs.F
399    o pkg/exf: some cleaning-up:
400      - change various "constants" into runtime parameters
401      - cleaned-up Large&Yeager04 routine which should eventually
402        replace exf_bulkformulae.F (changed names of S/R and CPP)
403        and merged various ALLOW_ATM_WIND options
404     only used with thsice pkg (in thsice_get_exf.F):
405      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
406        which are used when useStabilityFct_overIce=TRUE (= the default)
407      - change default values of ice & snow emissivity and scale downward LW
408        by ice & snow emissivity.
409    o pkg/thsice:
410     fix few little problems, in thsice_calc_thickn.F:
411      - growth vertically (and not laterally) if iceFrac == iceMaskMax
412      - melt only laterally if hIce < hThinIce (as the comments say)
413      and in thsice_extend.F:
414      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
415      - start to form ice as soon as the minimum ice-volume is reachable.
416     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
417      and cpl_aim+ocn
418    o pkg/kpp
419     - move computation of surface related input fields to KPP into a new
420       subroutine kpp_forcing_surf.F
421     - remove wrong (within bi,bj loops) EXCH calls.
422     - little cleaning (add argument myThid in last position, cvs header ...)
423     - for now, fix conservation problem by exchanging KPPviscAz (may not
424       be the best fix)
425    o pkg/seaice
426     - check for inconsistent evp parameter/cpp-flag combination
427     - remove leftover errIO flat for obsolete name list error handling
428    o OpenAD
429     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
430    
431    checkpoint59a
432    o pkg/seaice: some parameter clarifications and a little bit of clean up
433    o pkg/thsice: rename run-time parameters:
434       himin       -> hIceMin
435       himin0      -> hThinIce
436       hihig       -> hThickIce
437       i0          -> i0swFrac
438       transCoef   -> bMeltCoef
439       frac_energy -> fracMelting
440      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
441       with default values (for now) that do not change the results.
442      remove old version of thsice vars advection in pkg/seaice.
443    o in FFIELDS.h:
444      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
445      - make pLoad & sIceLoad always available (but still only used if
446         ATMOSPHERIC_LOADING is #define).
447    o pkg/kpp: replaced _KPP_RL with _RL
448    o bug fixes for vertical diffusivity computations when both KPP and
449        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
450        are no longer updating the vertical diffusivity array
451        (passed as argument) but are (re-) setting those arrays.
452    o pkg/seaice: fix bug in evp solver, while doing that
453      - change (improve?) discretization of stress computations for both
454        cgrid-lsr and evp solver
455      - add a new routine to compute strain rates
456      - the above changes lab_sea results
457      - add no slip conditions for evp solver (off by default), lsr-version
458        may follow
459      - fix exchange for shear at Z-points (does not change lab_sea)
460      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
461        (to force the user to pick a time step since there is not "safe" way
462        of choosing it)
463      - add principal stress diagnostics
464      - rearrange fields for evp a little to avoid having to call a: too many
465        exchanges and b: exchanges for stress trensor components which we do
466        not have.
467      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
468        of evp, complete rewrite for lsr case (latter is does not yet work
469        in all cases)
470    o pkg/kpp: add code to have mixing in shelf ice caverns
471      - add myThid to all kpp routines (long overdue)
472    
473    checkpoint59
474    o pkg/exf:
475      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
476        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
477      - move exf header files from lower_case.h to UPPER_CASE.h ;
478        add missing cvs Header & Name
479      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
480      - add namelist param. selectStressGridPosition, exf_monFreq
481      - retire many _CLIM routines, and remove data.exf_clim
482        + params moved to data.exf
483        + climsst, climsss now handled by exf_set_gen, i.e.
484          climss?period=0 refers to constant field,
485          climss?period=-12 to monthly forcing
486      - split up namelists in data.exf
487    o pkg/seaice:
488      - remove seaice_exch and seaice_exch_uv
489      - remove superfluous exchange of theta
490      - add myThid to seaice_budget_ocean/ice
491      - add new interface for atmospheric wind forcing (C-grid only)
492        + new routine
493        + two new field (taux, tauy for stress over ice)
494        + removed one global field (DAIRN) for C-grid case only
495    o pkg/thsise
496      - 2nd set of modifs for thsice adjoint in conjunction with exf
497    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
498    
499    checkpoint58y_post
500    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
501      vertical diffusivity, similar to that in MOM4; turned on using
502      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
503      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
504    o Added capability for 3D specification of background vertical diffusion
505      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
506      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
507      "data" file that contains the 3D vertical diffusivity coefficients.
508    o ice dynamics (pkg/seaice) with thsice thermodynamics:
509      - add code within pkg thsice to advect & diffuse sea-ice fields
510      similar to (and will replace) what has been added in  seaice_advdiff.F,
511      but: - conserving Mass, Heat & Salt.
512           - better when using non-linear advection scheme (not yet fully tested)
513           - can also be used in atmospheric set-up (for now, only the diffusion).
514    
515    checkpoint58x_post
516    o IO option for global-file compact format:
517      - add options when generating topology (utils/exch2/matlab-topology-generator)
518      - add I/O capability (pkg/mdsio).
519      - adapt utils/matlab/rdmds.m to read this format.
520      for now long-line format not yet supported by pkg/mdsio (& exch2).
521    o shelfice: add a few diagnostics
522    
523    checkpoint58w_post
524    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
525      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
526      (and replace horiVertRatio in NH code).
527      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
528                         and tutorial_plume_on_slope (sensitive to truncation)
529    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
530      directly to drive seaice model (C-grid only)
531    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
532     - reintroduce computation of wind from stress,
533     - compute tau (in exf_bulkformulae.F) from windstress averaged to
534       mass points to avoid tau = 0
535     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
536    o rdmnc.m: make it work with "global" files created with gluemnc
537    o rdmnc.m : some improvements in dealing with singleton dimension
538      (tested on all testreport mnc output files).
539    o genmake2: disable pkg/profiles if netcdf test fails.
540    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
541    o move call to cal_readparms up to make calendar parameters/variable available
542      to all packages
543    
544    checkpoint58v_post
545    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
546      useDynP_inEos_Zc tested.
547    o pkg/exf: changes to properly interpolate/mask/scale initial fields
548    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
549      and portions thereof.  See read_cs.txt for description and examples.
550    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
551      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
552      following the great-circle arc between those 2 points.
553    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
554      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
555    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
556     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
557     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
558     - still needs work (not working with some options ; efficiency to improve)
559       and serious testing.
560     - use this scheme for temperature & salinity in 2 advection test exp.:
561       advect_xy & advect_xz, respectively.
562    
563    checkpoint58u_post
564    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
565    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
566    o testreport: add option "-skipdir" to skip some test.
567    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
568      momentum calculation.
569    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
570    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
571      remove checkpoint.F and the_correction_step.F (no longer used);
572      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
573    o add option (linFSConserveTr) to correct for tracer source/sink due to
574      Linear Free surface
575    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
576    o pkg/thsice: fix reading mnc-pickups
577    
578    checkpoint58t_post
579    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
580    o pkg/mdsio:
581     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
582       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
583       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
584     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
585     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
586       either MDS_READ_FIELD or MDS_WRITE_FIELD )
587     - new S/R (to replace MDSWRITEMETA), which allows to write more
588       informations (variable names, time ...) to meta files.
589     - modify rdmds.m to give back the meta file content.
590    o pkg/diagnostics: change vertical interpolation to be safer, and more
591       flexible (define p-levels to interpolate to in data.diagnostics);
592      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
593       diagnostic pointer.
594    o pkg/seaice: more cleaning up of seaice_growth, added many comments
595    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
596    o fix multi-category seaice:
597     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
598       SEAICE_MULTICATEGORY
599     - fix short wave heat flux
600    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
601       and allow to use EVP solver. Change forward lab_sea: test both EVP
602       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
603    o Initial check-in of lab_sea adjoint
604      (very similar to natl_box_adjoint/code_seaice)
605      * used C-grid and EVP solver
606      * used KPP, GM/Redi
607      * uses inAdExact=.TRUE.
608      * gradient checks fail for both ADM and TLM
609        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
610        f.d. gradients actually seem more problematic than ADM, TLM gradients;
611        issue is related to forward mismatch between g77 an ifort
612    o pkg/seaice: overhaul of thermodynamics
613     - growth.F and groatb.F are replaced by new routine seaice_growth.F
614     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
615     - move a few global fields out of SEAICE.h into seaice_growth.F and
616       make them 2D (FICE/QNETO/ ...)
617     - remove FO (it is the same as QNETO)
618     - introduce a few local fields to avoid modifying external fields such
619       as atemp, etc.
620    
621  checkpoint58s_post  checkpoint58s_post
622  o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F  o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
623    changed exf_set_gen.F so that    changed exf_set_gen.F so that

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