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revision 1.740 by heimbach, Fri Oct 27 05:19:42 2006 UTC revision 1.932 by dimitri, Sat Dec 22 17:44:49 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 added verification/lab_sea/input.salt_plume
8    o pkg/salt_plume: clean up salt_plume_frac.F to
9      remove redundancy in PlumeMethod 1 and 4
10    o pkg/kpp: added saltplume diagnostics
11    o pkg/obcs and pkg/seaice:
12      - do not set uice and vice to zero when OB*icefile are unspecified
13      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
14      - moved seaice tracer obcs after call to seaice_growth
15    o pkg/salt_plume: added various options for salt plume depth
16      criterion and for vertical distribution of the salt
17    
18    checkpoint59l
19    o pkg/ptracers: new version of ptracers pickup:
20      read meta file and write only fields which are needed to restart.
21      ( same logic as main pickup file ; also using pickupStrictlyMatch )
22    o pkg/seaice:
23      - add timescale for melting due to warm mixed layer as a means of
24        setting SEAICE_availHeatFrac more conveniently
25      - add a CPP-flag/runtime parameter check for flooding algorithm
26      - reformulated availHeat in seaice_growth.F to be independent of AREA
27    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
28      unit changes
29    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
30    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
31      SX vector computer.
32    o pkg/seaice:
33      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
34        seaice forcing fields can now be read only through pkg/exf
35      - removed some unused halos
36    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
37    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
38      or U/VICE from U/VWIND before computing U/VSTRESS
39    
40    checkpoint59k
41    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
42      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
43    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
44      all experiments pass when compile with un-initialised var. checking option.
45    o added pkg/salt_plume
46    o script to test restart (for now, in MITgcm_contrib/jmc_script)
47    o pkg/seaice: new read/write pickup version.
48      read meta file and write only fields which are needed to restart.
49      ( same logic as main pickup file ; also using pickupStrictlyMatch )
50    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
51    o lab_sea.hb87: modify the domain & update output.hb87.txt :
52      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
53      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
54      process. Fixed here by closing the domain at the Northern boundary.
55    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
56    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
57      a set of consecutive levels in/from a 3-D array.
58    o pkg/ptracers:
59      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
60      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
61    
62    checkpoint59j
63    o in pkgs: dic, obcs, offline, rbcs:
64      standard way to compute coeff. for time interpolation between 2 time reccords
65      which retains full precision (& make results less dependent on compiler).
66      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
67    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
68      packages instead of reading ice cover and wind speed separately
69    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
70     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
71      to allow to compile customized code before the update)
72    o cleaning-up:
73      - fix CPP instruction syntax in pkg/obcs
74      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
75        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
76      - fix some threads issue in IO parts.
77    o pkg/dic:
78      - add tons of "_d 0" (--> much better testreports !)
79       and then update outputs of tutorial_global_oce_biogeo
80    o pkg/mom_fluxform:
81      add a special version of momentum advection intended to conserve momentum
82      next to a bathymetry step or a coastline edge. (default = off = #undef)
83    o new read/write pickup version:
84      - for now, only implemented for main (mdsio) pickup file.
85      - write out only what is needed to restart; merge pickup_nh , pickup_ph
86        and main pickup together.
87      - read meta file; read only what is needed to restart; stop if a field
88        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
89        if it make sense (even if the restart is not perfect).
90      - if no meta file, assume that pickup to read corresponds exactly to
91        a pickup that would currently be written.
92      - read pickup written in the old format (until checkpoint59i) if it
93        recognizes an old meta file (no field-list).
94      - add a meta file in exp. which starts from a pickup: 2 cases:
95        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
96         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
97        b) a meta file describing the content of the associated pickup file
98         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
99    o pkg/mdsio & pkg/rw:
100      - new routine to read a meta file ; new set of routine to read
101        Multiple-fields file (with meta file).
102    o added open boundary conditions capability for seaice
103        HSNOW, HSALT, UICE, and VICE
104    
105    checkpoint59i
106    o adjoint:
107      * fix multiDimAdvection adjoint
108        (partial recomputation problem by TAF for fVerT(:,:,kDown)
109        and comlev1 size definition (maxpass vs. max. number of tracers)
110      * verification/global_ocean.90x45x15 adjoint now tests
111        NLFS and multiDimAdvection using DST3 (=30)
112      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
113    o pkg/kpp: add "_d 0" to real constant (if missing);
114      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
115      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
116    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
117      for internal parameters related to restart process (formerly from PARAMS.h)
118      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
119    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
120      as argument. (only atm2d & obcs write_pickup have not yet been updated)
121    o pkg/monitor:
122      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
123      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
124      - account for deep Atmosphere factor and density factor (anelastic)
125    o added open boundary conditions capability for seaice HEFF and AREA
126    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
127      thermodynamics
128      - requires a little reorganization, which affects the testreport results
129        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
130        so that now the conservative form is tested
131      - add a few comments
132    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
133    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
134    o add new diagnostics to seaice: advective, diffusive fluxes (only for
135      multidim-advection, for scheme 2 they are not filled) and transports,
136      thermodynamic growth rates
137    o change units of EmPmR (inside the code, + within coupling interface)
138      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
139      Affects results @ truncation level (cg2d match) and update output of
140       experiments: lab_sea(6), global_ocean.90x40x15(10),
141      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
142      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
143      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
144      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
145    
146    checkpoint59h
147    o pkg/exf:
148      - improve vectorization by moving if-statement out of loops in
149        exf_mapfields, exf_radiation
150      - exf_bulkformulae.F: introduce 2D fields and vectorize code
151    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
152    o testreport:
153      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
154        monitor & update offline_exf_seaice exp. output.
155      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
156    o pkg/seaice:
157      - bug fix in the evp solver: boundary conditions were affected be
158        masking of zMax/zMin (changes results)
159      - minor bug fix in boundary conditions in seaice_calc_strainrates
160        (changes results for no_slip)
161      - seaice_lsr.F: make interpolation of eta dependent on boundaries
162      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
163      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
164        stress formulation and no-slip boundary conditions
165    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
166      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
167    o pkg/seaice: a first HSALT time stepping equation has been checked in
168    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
169      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
170      without requiring DO-IF statements
171    o pkg/thsice:
172      use continuous power-law function for partition of energy between lateral
173      melting/freezing and thinning/thickening ; old code using step function
174      still available with #undef THSICE_FRACEN_POWERLAW
175      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
176    o testreport: change AD testing : check against results/output_adm.txt
177      using same scripts as for forward test.
178    
179    checkpoint59g
180    o adjoint testing: in preparation for changing testreport:
181      - output format: cost and grad written on separated lines
182      - ad output results in directory "results" (instead of "results_ad")
183    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
184    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
185    o pkg/ecco: allow user defined cost function contributions
186    o testreport:
187      Allow to choose (per experiment) the list of tested output variables
188       and the main variable (used to issue a pass/FAIL ) ;
189      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
190      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
191      Also modify printing of summary:
192       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
193       b) echo the list of tested variables in the individual summary.txt of
194          each experiment.
195    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
196      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
197      (but still depend on the tile decompostion of the domain).
198    o pkg/seaice: change a discretization detail to make the B-grid code
199      "more symmetric". This change is likely to remove all "ridges/leads" that
200      where quasi-aligned with the grid in B-grid solutions. It may also be
201      the solution to the stress coupling issues with the B-grid.
202    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
203      remove .cvsignore from input dir. (since testreport no longer run here).
204    o pkg/thsice:
205     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
206     - fix reshaping of sea-ice just after advection:
207       melt all the ice only if ice-volume is too small.
208     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
209       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
210     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
211    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
212      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
213    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
214      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
215      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
216      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
217      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
218      -> update output.txt
219    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
220     this affects truncation error: -> update output.txt of exp:
221      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
222      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
223    
224    checkpoint59f
225    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
226    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
227      a bounded range (in forward mode)
228    o pkg/ecco, ctrl, autodiff and mom_common:
229     internal parameter controls, completements of implementations
230    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
231    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
232      (not seem any difference in testing results).
233    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
234       at face corners.
235    o pkg/generic_advdiff:
236     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
237      loop range indices for computing vertical advection tendency
238      and do the calculation in the interior only (no overlap) ;
239      for now, only implemented for SOM advection (to save CPU time).
240     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
241    o exch2 adjoint
242      First set of changes:
243      - add exch2 hand-written adjoint templates
244      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
245        This will require cleanup in pkg/autodiff/*.F
246        (changed routines currently kept separate in verif. code/)
247      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
248        that used to hide exch2 or cubed-sphere specific code
249        (commented via 'cph-exch2')
250    o pkg/seaice
251      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
252    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
253       output of global_ocean.cs32x15.thsice .
254    
255    checkpoint59e
256    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
257      for B-grid vector (not yet tested) and C-grid vector (<- only used
258      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
259    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
260      (#ifdef ALLOW_SALT_PLUME)
261    o gather_2d/scatter_2d: removed halo regions
262    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
263      scheme and the corresponding test case (under front_relax dir). For now,
264      only available with Skew-flux form and not yet tested in realistic set-up.
265      adjoint: store directives updated, but gradient checks deteriorated,
266      so maybe GM/Redi adjoint is now broken.
267    o seaice adjoint
268      * add AREA, HEFF, HSNOW as control variable
269        (should not change lab_sea results)
270      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
271    o pkg/seaice:
272      * added computation of saltFlux in seaice_growth;
273        For time being, sea ice salinity is assumed constant
274        contribution of snow flooding to freshening of sea ice is neglected.
275        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
276        defaults to 0.0 in order to maintain backward compatibility.
277        Typical values for SEAICE_salinity are 4 to 10 g/kg.
278      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
279      * added SEAICE_availHeatFrac, which specifies fraction of surface level
280        heat content used to melt or grow ice
281      * commented out cap of HICE: it helps keep ice thinner
282      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
283      * applied OBCS T/S mask to HEFFM sea ice mask
284    
285    checkpoint59d
286    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
287     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
288     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
289    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
290     and change default value of parameter "GM_Small_Number";
291     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
292       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
293       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
294    o pkg/ecco: cost function when applying pkg/smooth to controls
295    o pkg/ctrl: add forcingPrecond run time parameter
296    o pkg/seaice:
297     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
298     - fix bug in metric terms of u-equation in LSR solver (implicit part),
299       changes verification/lab_sea
300     - rearrange implicit part of u-equation in LSR solver to make it easier to
301       read, understand, and debug. This causes changes at the truncation level.
302     - fix (serious) bug in the boundary conditions (sign error in the implicit
303       part) of the LSR solver. Changes all LSR results.
304     - fixed problem with HSNOW initialization to avoid thick snow when AREA
305       is initilized with small values - does not change lab_sea results.
306     - added HsnowFile initialization capability
307    o pkg/smooth: addition to model/src and pkg/ctrl so allow
308     initialization of pkg/smooth and application to control vector
309    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
310    o dependencies: pkg/profiles requires pkg/cal
311    o pkg/profiles:
312     - added option ALLOW_PROFILES_GENERICGRID
313         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
314         that interpolation information (grid points and coefficients) is provided
315         within the netcdf input files.
316         -> sample matlab scripts can be found in MITgcm_contrib/gael
317         that allow you to prepare netcdf input files.
318     - also modified: cleaner include statements, cleaner error print statements,
319       cleaner stops when error, and more tests of the netcdf input files consistency.
320    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
321    o pkg/seaice:
322     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
323       requires a new routine: seaice_diagnostics_fill.F
324     - make sure that seaice does not move if not forced (pressure replacement
325       method, Hibler and Ip, 1995), changes results
326     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
327     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
328       It is turned off by default (=-1.), because it changes the results.
329     - make it possible to read AREA from a file, too.
330    
331    checkpoint59c
332    o add S/R and diagnostics for oceanic mixed-layer depth
333    o move GMRedi call after all vertical mixing schemes (including KPP)
334    o pkg/thsice:
335     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
336      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
337    o pkg/obcs:
338     - bug fix for balance code
339    o pkg/seaice:
340      - allow values of SEAICE_elasticParm > 1
341      - add new parameter SEAICE_evpTauRelax as an alternative
342        to SEAICE_elasticParm
343      - make lsr boundary conditions free slip (by default), changes result
344      - add code for no slip boundary conditions for lsr
345      - set minimum of zeta to zero (and not 4e8) (changes results)
346      - add a cap on AREA after advecting AREA if seaice_growth is not called
347    o change calculation of Visbeck K:
348      - no longer depend on tapering scheme; instead, compute slope (limited
349        by GM_maxSlope). this is equivalent to what was comuted before with
350        clipping or linear tappering.
351      - fix vertical averaging (wrong by 1/2 level)
352      - leave the old version (but will not be maintained) within
353        #ifdef OLD_VISBECK_CALC / #endif
354      - update output of exp. ideal_2D_oce
355    o change error catch in calc_r_star to improve vectorization
356    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
357      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
358    o adjoint:
359      Re-organized adjoint checkpointing according to Matt Mazloff
360      (but with modifs/completions/cleanups)
361      Storing is now bundled into large arrays to optimized I/O
362      (and second step in cleanup of the_main_loop)
363    
364    checkpoint59b
365    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
366      - export/import (between ocean & coupler) fields needed for ocean DIC.
367    o pkg/seaice:
368      - get rid of three more exchanges seaice_calc_viscosities (required
369        different loop boundaries in seaice_lsr and seaice_ocean_stress)
370      - bug fix in seaice_ocean_stress (update of lab_sea required)
371      - reduce loop boundaries to necessary minimum also in seaice_evp
372      - go back to the old way of computing deltaC/Z as the adjoint likes that
373        better
374    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
375      passive tracer to an Age Tracer) + update output.txt
376    o pkg/exf:
377      - implement A-grid / C-grid selection for wind-stress input files.
378      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
379      for now, in exf_bulk_largeyeager04.F only :
380      - change implementation for case where windspeed + 2. components wind-stress
381        are read-in. AND use rhoConstFresh to convert evap.
382    o pkg/seaice:
383      - use correct EXCH_UV for wind-forcing (on A-grid).
384      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
385        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
386    o pkg/exf:
387      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
388      EXF_INTERPOLATION:
389      - merge global_with_exf/code version of exf_interp_read.F
390        to the main code ;
391      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
392        reading the file ; Important: This options needs to be defined to recover
393        previous code.
394        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
395      - no longer loose real*8 precision along the way when using exf_iprec=64.
396    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
397      - change discretisation of evp-solver in order to avoid another exchange
398        (changes lab_sea) and clean up a little
399      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
400        help the adjoint (this also changes the results slightly)
401      - add a few "_d 0" where they had been missing in seaice_evp.F
402      - cleaning up: remove unused seaice_calc_rhs.F
403    o pkg/exf: some cleaning-up:
404      - change various "constants" into runtime parameters
405      - cleaned-up Large&Yeager04 routine which should eventually
406        replace exf_bulkformulae.F (changed names of S/R and CPP)
407        and merged various ALLOW_ATM_WIND options
408     only used with thsice pkg (in thsice_get_exf.F):
409      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
410        which are used when useStabilityFct_overIce=TRUE (= the default)
411      - change default values of ice & snow emissivity and scale downward LW
412        by ice & snow emissivity.
413    o pkg/thsice:
414     fix few little problems, in thsice_calc_thickn.F:
415      - growth vertically (and not laterally) if iceFrac == iceMaskMax
416      - melt only laterally if hIce < hThinIce (as the comments say)
417      and in thsice_extend.F:
418      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
419      - start to form ice as soon as the minimum ice-volume is reachable.
420     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
421      and cpl_aim+ocn
422    o pkg/kpp
423     - move computation of surface related input fields to KPP into a new
424       subroutine kpp_forcing_surf.F
425     - remove wrong (within bi,bj loops) EXCH calls.
426     - little cleaning (add argument myThid in last position, cvs header ...)
427     - for now, fix conservation problem by exchanging KPPviscAz (may not
428       be the best fix)
429    o pkg/seaice
430     - check for inconsistent evp parameter/cpp-flag combination
431     - remove leftover errIO flat for obsolete name list error handling
432    o OpenAD
433     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
434    
435    checkpoint59a
436    o pkg/seaice: some parameter clarifications and a little bit of clean up
437    o pkg/thsice: rename run-time parameters:
438       himin       -> hIceMin
439       himin0      -> hThinIce
440       hihig       -> hThickIce
441       i0          -> i0swFrac
442       transCoef   -> bMeltCoef
443       frac_energy -> fracMelting
444      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
445       with default values (for now) that do not change the results.
446      remove old version of thsice vars advection in pkg/seaice.
447    o in FFIELDS.h:
448      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
449      - make pLoad & sIceLoad always available (but still only used if
450         ATMOSPHERIC_LOADING is #define).
451    o pkg/kpp: replaced _KPP_RL with _RL
452    o bug fixes for vertical diffusivity computations when both KPP and
453        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
454        are no longer updating the vertical diffusivity array
455        (passed as argument) but are (re-) setting those arrays.
456    o pkg/seaice: fix bug in evp solver, while doing that
457      - change (improve?) discretization of stress computations for both
458        cgrid-lsr and evp solver
459      - add a new routine to compute strain rates
460      - the above changes lab_sea results
461      - add no slip conditions for evp solver (off by default), lsr-version
462        may follow
463      - fix exchange for shear at Z-points (does not change lab_sea)
464      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
465        (to force the user to pick a time step since there is not "safe" way
466        of choosing it)
467      - add principal stress diagnostics
468      - rearrange fields for evp a little to avoid having to call a: too many
469        exchanges and b: exchanges for stress trensor components which we do
470        not have.
471      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
472        of evp, complete rewrite for lsr case (latter is does not yet work
473        in all cases)
474    o pkg/kpp: add code to have mixing in shelf ice caverns
475      - add myThid to all kpp routines (long overdue)
476    
477    checkpoint59
478    o pkg/exf:
479      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
480        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
481      - move exf header files from lower_case.h to UPPER_CASE.h ;
482        add missing cvs Header & Name
483      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
484      - add namelist param. selectStressGridPosition, exf_monFreq
485      - retire many _CLIM routines, and remove data.exf_clim
486        + params moved to data.exf
487        + climsst, climsss now handled by exf_set_gen, i.e.
488          climss?period=0 refers to constant field,
489          climss?period=-12 to monthly forcing
490      - split up namelists in data.exf
491    o pkg/seaice:
492      - remove seaice_exch and seaice_exch_uv
493      - remove superfluous exchange of theta
494      - add myThid to seaice_budget_ocean/ice
495      - add new interface for atmospheric wind forcing (C-grid only)
496        + new routine
497        + two new field (taux, tauy for stress over ice)
498        + removed one global field (DAIRN) for C-grid case only
499    o pkg/thsise
500      - 2nd set of modifs for thsice adjoint in conjunction with exf
501    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
502    
503    checkpoint58y_post
504    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
505      vertical diffusivity, similar to that in MOM4; turned on using
506      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
507      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
508    o Added capability for 3D specification of background vertical diffusion
509      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
510      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
511      "data" file that contains the 3D vertical diffusivity coefficients.
512    o ice dynamics (pkg/seaice) with thsice thermodynamics:
513      - add code within pkg thsice to advect & diffuse sea-ice fields
514      similar to (and will replace) what has been added in  seaice_advdiff.F,
515      but: - conserving Mass, Heat & Salt.
516           - better when using non-linear advection scheme (not yet fully tested)
517           - can also be used in atmospheric set-up (for now, only the diffusion).
518    
519    checkpoint58x_post
520    o IO option for global-file compact format:
521      - add options when generating topology (utils/exch2/matlab-topology-generator)
522      - add I/O capability (pkg/mdsio).
523      - adapt utils/matlab/rdmds.m to read this format.
524      for now long-line format not yet supported by pkg/mdsio (& exch2).
525    o shelfice: add a few diagnostics
526    
527    checkpoint58w_post
528    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
529      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
530      (and replace horiVertRatio in NH code).
531      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
532                         and tutorial_plume_on_slope (sensitive to truncation)
533    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
534      directly to drive seaice model (C-grid only)
535    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
536     - reintroduce computation of wind from stress,
537     - compute tau (in exf_bulkformulae.F) from windstress averaged to
538       mass points to avoid tau = 0
539     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
540    o rdmnc.m: make it work with "global" files created with gluemnc
541    o rdmnc.m : some improvements in dealing with singleton dimension
542      (tested on all testreport mnc output files).
543    o genmake2: disable pkg/profiles if netcdf test fails.
544    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
545    o move call to cal_readparms up to make calendar parameters/variable available
546      to all packages
547    
548    checkpoint58v_post
549    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
550      useDynP_inEos_Zc tested.
551    o pkg/exf: changes to properly interpolate/mask/scale initial fields
552    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
553      and portions thereof.  See read_cs.txt for description and examples.
554    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
555      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
556      following the great-circle arc between those 2 points.
557    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
558      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
559    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
560     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
561     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
562     - still needs work (not working with some options ; efficiency to improve)
563       and serious testing.
564     - use this scheme for temperature & salinity in 2 advection test exp.:
565       advect_xy & advect_xz, respectively.
566    
567    checkpoint58u_post
568    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
569    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
570    o testreport: add option "-skipdir" to skip some test.
571    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
572      momentum calculation.
573    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
574    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
575      remove checkpoint.F and the_correction_step.F (no longer used);
576      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
577    o add option (linFSConserveTr) to correct for tracer source/sink due to
578      Linear Free surface
579    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
580    o pkg/thsice: fix reading mnc-pickups
581    
582    checkpoint58t_post
583    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
584    o pkg/mdsio:
585     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
586       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
587       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
588     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
589     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
590       either MDS_READ_FIELD or MDS_WRITE_FIELD )
591     - new S/R (to replace MDSWRITEMETA), which allows to write more
592       informations (variable names, time ...) to meta files.
593     - modify rdmds.m to give back the meta file content.
594    o pkg/diagnostics: change vertical interpolation to be safer, and more
595       flexible (define p-levels to interpolate to in data.diagnostics);
596      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
597       diagnostic pointer.
598    o pkg/seaice: more cleaning up of seaice_growth, added many comments
599    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
600    o fix multi-category seaice:
601     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
602       SEAICE_MULTICATEGORY
603     - fix short wave heat flux
604    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
605       and allow to use EVP solver. Change forward lab_sea: test both EVP
606       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
607    o Initial check-in of lab_sea adjoint
608      (very similar to natl_box_adjoint/code_seaice)
609      * used C-grid and EVP solver
610      * used KPP, GM/Redi
611      * uses inAdExact=.TRUE.
612      * gradient checks fail for both ADM and TLM
613        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
614        f.d. gradients actually seem more problematic than ADM, TLM gradients;
615        issue is related to forward mismatch between g77 an ifort
616    o pkg/seaice: overhaul of thermodynamics
617     - growth.F and groatb.F are replaced by new routine seaice_growth.F
618     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
619     - move a few global fields out of SEAICE.h into seaice_growth.F and
620       make them 2D (FICE/QNETO/ ...)
621     - remove FO (it is the same as QNETO)
622     - introduce a few local fields to avoid modifying external fields such
623       as atemp, etc.
624    
625    checkpoint58s_post
626    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
627      changed exf_set_gen.F so that
628        genperiod=0 means input file is one time-constant field and
629        genperiod=-12 means input file contains 12 monthly means
630    o CG2D: use pre-computed solver main-diagonal (stored in common block);
631      this affects truncation error ; generate new output file for exp. which
632      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
633        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
634        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
635        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
636        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
637        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
638    o start implementation of deep-atmosphere and anelastic formulation
639    o verification: remove 2nd copy of input files and use script "prepare_run"
640      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
641    o mom_common/vecinv/fluxform: fix a few initialisation isssues
642    o profiles: fix for multithreaded case
643    
644    o diagnostics: rename few diags:
645      s/'PRESSURE'/'RCENTER '/g
646      s/'TICE    '/'oceFreez'/g
647      s/'TAUX    '/'oceTAUX '/g
648      s/'TAUY    '/'oceTAUY '/g
649      s/'SWFLUX  '/'oceQsw  '/g
650      s/DIFx/DFxE/g
651      s/DIFy/DFyE/g
652      and add few ocean-forcing diagnostics:
653      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
654    o modifications to pkg/seaice/growth.F and budget.F, which change results of
655      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
656      as actual snow thickness.  It now refers everywhere to effective snow
657      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
658    
659    checkpoint58r_post
660    o modifications to pkg/seaice/growth.F, which change results of
661      lab_sea experiment: fixes pertain to melting snow over open water, to
662      masking EVAP under sea ice, and to using the correct AREA variable for
663      computations of EVAP, PRECIP, HSNOW, and GHEFF
664    o add ability to read bathy, salt, and theta using MNC (off by def)
665    o add flooding algorithm and advection of HSNOW for pkg/seaice;
666      both are turned off by default and do no change any results
667    o seaice advection with pkg/thsice: a step toward the use of non-linear
668      advection scheme, but #ifdef or commented out for now (requires more EXCH).
669  o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens  o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
670    (identical results) and the standard version of EXTERNAL_FIELDS_LOAD    (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
671    in natl_box (affects results @ truncation level: update output.txt)    in natl_box (affects results @ truncation level: update output.txt)

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