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revision 1.752 by jmc, Tue Dec 5 22:15:47 2006 UTC revision 1.935 by dimitri, Thu Jan 10 23:32:15 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice/seaice_growth.F: use a different time constant for freezing
8      ice due to supercooled sea water, hardwired to SEAICE_deltaTtherm/0.1
9    o gad_som : fix flux output (& diagnostics) to have same units as other
10      advection scheme fluxes (was previously multiplied by deltaT).
11    o added verification/seaice_obcs both to test seaice open boundaries
12      and to provide an example matlab scrpt for generating them
13    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
14    o pkg/salt_plume: clean up salt_plume_frac.F to
15      remove redundancy in PlumeMethod 1 and 4
16    o pkg/kpp: added saltplume diagnostics
17    o pkg/obcs and pkg/seaice:
18      - do not set uice and vice to zero when OB*icefile are unspecified
19      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
20      - moved seaice tracer obcs after call to seaice_growth
21    o pkg/salt_plume: added various options for salt plume depth
22      criterion and for vertical distribution of the salt
23    
24    checkpoint59l
25    o pkg/ptracers: new version of ptracers pickup:
26      read meta file and write only fields which are needed to restart.
27      ( same logic as main pickup file ; also using pickupStrictlyMatch )
28    o pkg/seaice:
29      - add timescale for melting due to warm mixed layer as a means of
30        setting SEAICE_availHeatFrac more conveniently
31      - add a CPP-flag/runtime parameter check for flooding algorithm
32      - reformulated availHeat in seaice_growth.F to be independent of AREA
33    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
34      unit changes
35    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
36    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
37      SX vector computer.
38    o pkg/seaice:
39      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
40        seaice forcing fields can now be read only through pkg/exf
41      - removed some unused halos
42    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
43    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
44      or U/VICE from U/VWIND before computing U/VSTRESS
45    
46    checkpoint59k
47    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
48      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
49    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
50      all experiments pass when compile with un-initialised var. checking option.
51    o added pkg/salt_plume
52    o script to test restart (for now, in MITgcm_contrib/jmc_script)
53    o pkg/seaice: new read/write pickup version.
54      read meta file and write only fields which are needed to restart.
55      ( same logic as main pickup file ; also using pickupStrictlyMatch )
56    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
57    o lab_sea.hb87: modify the domain & update output.hb87.txt :
58      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
59      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
60      process. Fixed here by closing the domain at the Northern boundary.
61    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
62    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
63      a set of consecutive levels in/from a 3-D array.
64    o pkg/ptracers:
65      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
66      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
67    
68    checkpoint59j
69    o in pkgs: dic, obcs, offline, rbcs:
70      standard way to compute coeff. for time interpolation between 2 time reccords
71      which retains full precision (& make results less dependent on compiler).
72      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
73    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
74      packages instead of reading ice cover and wind speed separately
75    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
76     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
77      to allow to compile customized code before the update)
78    o cleaning-up:
79      - fix CPP instruction syntax in pkg/obcs
80      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
81        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
82      - fix some threads issue in IO parts.
83    o pkg/dic:
84      - add tons of "_d 0" (--> much better testreports !)
85       and then update outputs of tutorial_global_oce_biogeo
86    o pkg/mom_fluxform:
87      add a special version of momentum advection intended to conserve momentum
88      next to a bathymetry step or a coastline edge. (default = off = #undef)
89    o new read/write pickup version:
90      - for now, only implemented for main (mdsio) pickup file.
91      - write out only what is needed to restart; merge pickup_nh , pickup_ph
92        and main pickup together.
93      - read meta file; read only what is needed to restart; stop if a field
94        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
95        if it make sense (even if the restart is not perfect).
96      - if no meta file, assume that pickup to read corresponds exactly to
97        a pickup that would currently be written.
98      - read pickup written in the old format (until checkpoint59i) if it
99        recognizes an old meta file (no field-list).
100      - add a meta file in exp. which starts from a pickup: 2 cases:
101        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
102         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
103        b) a meta file describing the content of the associated pickup file
104         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
105    o pkg/mdsio & pkg/rw:
106      - new routine to read a meta file ; new set of routine to read
107        Multiple-fields file (with meta file).
108    o added open boundary conditions capability for seaice
109        HSNOW, HSALT, UICE, and VICE
110    
111    checkpoint59i
112    o adjoint:
113      * fix multiDimAdvection adjoint
114        (partial recomputation problem by TAF for fVerT(:,:,kDown)
115        and comlev1 size definition (maxpass vs. max. number of tracers)
116      * verification/global_ocean.90x45x15 adjoint now tests
117        NLFS and multiDimAdvection using DST3 (=30)
118      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
119    o pkg/kpp: add "_d 0" to real constant (if missing);
120      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
121      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
122    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
123      for internal parameters related to restart process (formerly from PARAMS.h)
124      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
125    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
126      as argument. (only atm2d & obcs write_pickup have not yet been updated)
127    o pkg/monitor:
128      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
129      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
130      - account for deep Atmosphere factor and density factor (anelastic)
131    o added open boundary conditions capability for seaice HEFF and AREA
132    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
133      thermodynamics
134      - requires a little reorganization, which affects the testreport results
135        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
136        so that now the conservative form is tested
137      - add a few comments
138    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
139    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
140    o add new diagnostics to seaice: advective, diffusive fluxes (only for
141      multidim-advection, for scheme 2 they are not filled) and transports,
142      thermodynamic growth rates
143    o change units of EmPmR (inside the code, + within coupling interface)
144      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
145      Affects results @ truncation level (cg2d match) and update output of
146       experiments: lab_sea(6), global_ocean.90x40x15(10),
147      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
148      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
149      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
150      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
151    
152    checkpoint59h
153    o pkg/exf:
154      - improve vectorization by moving if-statement out of loops in
155        exf_mapfields, exf_radiation
156      - exf_bulkformulae.F: introduce 2D fields and vectorize code
157    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
158    o testreport:
159      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
160        monitor & update offline_exf_seaice exp. output.
161      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
162    o pkg/seaice:
163      - bug fix in the evp solver: boundary conditions were affected be
164        masking of zMax/zMin (changes results)
165      - minor bug fix in boundary conditions in seaice_calc_strainrates
166        (changes results for no_slip)
167      - seaice_lsr.F: make interpolation of eta dependent on boundaries
168      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
169      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
170        stress formulation and no-slip boundary conditions
171    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
172      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
173    o pkg/seaice: a first HSALT time stepping equation has been checked in
174    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
175      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
176      without requiring DO-IF statements
177    o pkg/thsice:
178      use continuous power-law function for partition of energy between lateral
179      melting/freezing and thinning/thickening ; old code using step function
180      still available with #undef THSICE_FRACEN_POWERLAW
181      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
182    o testreport: change AD testing : check against results/output_adm.txt
183      using same scripts as for forward test.
184    
185    checkpoint59g
186    o adjoint testing: in preparation for changing testreport:
187      - output format: cost and grad written on separated lines
188      - ad output results in directory "results" (instead of "results_ad")
189    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
190    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
191    o pkg/ecco: allow user defined cost function contributions
192    o testreport:
193      Allow to choose (per experiment) the list of tested output variables
194       and the main variable (used to issue a pass/FAIL ) ;
195      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
196      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
197      Also modify printing of summary:
198       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
199       b) echo the list of tested variables in the individual summary.txt of
200          each experiment.
201    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
202      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
203      (but still depend on the tile decompostion of the domain).
204    o pkg/seaice: change a discretization detail to make the B-grid code
205      "more symmetric". This change is likely to remove all "ridges/leads" that
206      where quasi-aligned with the grid in B-grid solutions. It may also be
207      the solution to the stress coupling issues with the B-grid.
208    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
209      remove .cvsignore from input dir. (since testreport no longer run here).
210    o pkg/thsice:
211     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
212     - fix reshaping of sea-ice just after advection:
213       melt all the ice only if ice-volume is too small.
214     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
215       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
216     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
217    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
218      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
219    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
220      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
221      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
222      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
223      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
224      -> update output.txt
225    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
226     this affects truncation error: -> update output.txt of exp:
227      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
228      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
229    
230    checkpoint59f
231    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
232    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
233      a bounded range (in forward mode)
234    o pkg/ecco, ctrl, autodiff and mom_common:
235     internal parameter controls, completements of implementations
236    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
237    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
238      (not seem any difference in testing results).
239    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
240       at face corners.
241    o pkg/generic_advdiff:
242     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
243      loop range indices for computing vertical advection tendency
244      and do the calculation in the interior only (no overlap) ;
245      for now, only implemented for SOM advection (to save CPU time).
246     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
247    o exch2 adjoint
248      First set of changes:
249      - add exch2 hand-written adjoint templates
250      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
251        This will require cleanup in pkg/autodiff/*.F
252        (changed routines currently kept separate in verif. code/)
253      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
254        that used to hide exch2 or cubed-sphere specific code
255        (commented via 'cph-exch2')
256    o pkg/seaice
257      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
258    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
259       output of global_ocean.cs32x15.thsice .
260    
261    checkpoint59e
262    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
263      for B-grid vector (not yet tested) and C-grid vector (<- only used
264      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
265    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
266      (#ifdef ALLOW_SALT_PLUME)
267    o gather_2d/scatter_2d: removed halo regions
268    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
269      scheme and the corresponding test case (under front_relax dir). For now,
270      only available with Skew-flux form and not yet tested in realistic set-up.
271      adjoint: store directives updated, but gradient checks deteriorated,
272      so maybe GM/Redi adjoint is now broken.
273    o seaice adjoint
274      * add AREA, HEFF, HSNOW as control variable
275        (should not change lab_sea results)
276      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
277    o pkg/seaice:
278      * added computation of saltFlux in seaice_growth;
279        For time being, sea ice salinity is assumed constant
280        contribution of snow flooding to freshening of sea ice is neglected.
281        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
282        defaults to 0.0 in order to maintain backward compatibility.
283        Typical values for SEAICE_salinity are 4 to 10 g/kg.
284      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
285      * added SEAICE_availHeatFrac, which specifies fraction of surface level
286        heat content used to melt or grow ice
287      * commented out cap of HICE: it helps keep ice thinner
288      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
289      * applied OBCS T/S mask to HEFFM sea ice mask
290    
291    checkpoint59d
292    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
293     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
294     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
295    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
296     and change default value of parameter "GM_Small_Number";
297     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
298       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
299       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
300    o pkg/ecco: cost function when applying pkg/smooth to controls
301    o pkg/ctrl: add forcingPrecond run time parameter
302    o pkg/seaice:
303     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
304     - fix bug in metric terms of u-equation in LSR solver (implicit part),
305       changes verification/lab_sea
306     - rearrange implicit part of u-equation in LSR solver to make it easier to
307       read, understand, and debug. This causes changes at the truncation level.
308     - fix (serious) bug in the boundary conditions (sign error in the implicit
309       part) of the LSR solver. Changes all LSR results.
310     - fixed problem with HSNOW initialization to avoid thick snow when AREA
311       is initilized with small values - does not change lab_sea results.
312     - added HsnowFile initialization capability
313    o pkg/smooth: addition to model/src and pkg/ctrl so allow
314     initialization of pkg/smooth and application to control vector
315    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
316    o dependencies: pkg/profiles requires pkg/cal
317    o pkg/profiles:
318     - added option ALLOW_PROFILES_GENERICGRID
319         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
320         that interpolation information (grid points and coefficients) is provided
321         within the netcdf input files.
322         -> sample matlab scripts can be found in MITgcm_contrib/gael
323         that allow you to prepare netcdf input files.
324     - also modified: cleaner include statements, cleaner error print statements,
325       cleaner stops when error, and more tests of the netcdf input files consistency.
326    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
327    o pkg/seaice:
328     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
329       requires a new routine: seaice_diagnostics_fill.F
330     - make sure that seaice does not move if not forced (pressure replacement
331       method, Hibler and Ip, 1995), changes results
332     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
333     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
334       It is turned off by default (=-1.), because it changes the results.
335     - make it possible to read AREA from a file, too.
336    
337    checkpoint59c
338    o add S/R and diagnostics for oceanic mixed-layer depth
339    o move GMRedi call after all vertical mixing schemes (including KPP)
340    o pkg/thsice:
341     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
342      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
343    o pkg/obcs:
344     - bug fix for balance code
345    o pkg/seaice:
346      - allow values of SEAICE_elasticParm > 1
347      - add new parameter SEAICE_evpTauRelax as an alternative
348        to SEAICE_elasticParm
349      - make lsr boundary conditions free slip (by default), changes result
350      - add code for no slip boundary conditions for lsr
351      - set minimum of zeta to zero (and not 4e8) (changes results)
352      - add a cap on AREA after advecting AREA if seaice_growth is not called
353    o change calculation of Visbeck K:
354      - no longer depend on tapering scheme; instead, compute slope (limited
355        by GM_maxSlope). this is equivalent to what was comuted before with
356        clipping or linear tappering.
357      - fix vertical averaging (wrong by 1/2 level)
358      - leave the old version (but will not be maintained) within
359        #ifdef OLD_VISBECK_CALC / #endif
360      - update output of exp. ideal_2D_oce
361    o change error catch in calc_r_star to improve vectorization
362    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
363      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
364    o adjoint:
365      Re-organized adjoint checkpointing according to Matt Mazloff
366      (but with modifs/completions/cleanups)
367      Storing is now bundled into large arrays to optimized I/O
368      (and second step in cleanup of the_main_loop)
369    
370    checkpoint59b
371    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
372      - export/import (between ocean & coupler) fields needed for ocean DIC.
373    o pkg/seaice:
374      - get rid of three more exchanges seaice_calc_viscosities (required
375        different loop boundaries in seaice_lsr and seaice_ocean_stress)
376      - bug fix in seaice_ocean_stress (update of lab_sea required)
377      - reduce loop boundaries to necessary minimum also in seaice_evp
378      - go back to the old way of computing deltaC/Z as the adjoint likes that
379        better
380    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
381      passive tracer to an Age Tracer) + update output.txt
382    o pkg/exf:
383      - implement A-grid / C-grid selection for wind-stress input files.
384      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
385      for now, in exf_bulk_largeyeager04.F only :
386      - change implementation for case where windspeed + 2. components wind-stress
387        are read-in. AND use rhoConstFresh to convert evap.
388    o pkg/seaice:
389      - use correct EXCH_UV for wind-forcing (on A-grid).
390      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
391        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
392    o pkg/exf:
393      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
394      EXF_INTERPOLATION:
395      - merge global_with_exf/code version of exf_interp_read.F
396        to the main code ;
397      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
398        reading the file ; Important: This options needs to be defined to recover
399        previous code.
400        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
401      - no longer loose real*8 precision along the way when using exf_iprec=64.
402    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
403      - change discretisation of evp-solver in order to avoid another exchange
404        (changes lab_sea) and clean up a little
405      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
406        help the adjoint (this also changes the results slightly)
407      - add a few "_d 0" where they had been missing in seaice_evp.F
408      - cleaning up: remove unused seaice_calc_rhs.F
409    o pkg/exf: some cleaning-up:
410      - change various "constants" into runtime parameters
411      - cleaned-up Large&Yeager04 routine which should eventually
412        replace exf_bulkformulae.F (changed names of S/R and CPP)
413        and merged various ALLOW_ATM_WIND options
414     only used with thsice pkg (in thsice_get_exf.F):
415      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
416        which are used when useStabilityFct_overIce=TRUE (= the default)
417      - change default values of ice & snow emissivity and scale downward LW
418        by ice & snow emissivity.
419    o pkg/thsice:
420     fix few little problems, in thsice_calc_thickn.F:
421      - growth vertically (and not laterally) if iceFrac == iceMaskMax
422      - melt only laterally if hIce < hThinIce (as the comments say)
423      and in thsice_extend.F:
424      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
425      - start to form ice as soon as the minimum ice-volume is reachable.
426     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
427      and cpl_aim+ocn
428    o pkg/kpp
429     - move computation of surface related input fields to KPP into a new
430       subroutine kpp_forcing_surf.F
431     - remove wrong (within bi,bj loops) EXCH calls.
432     - little cleaning (add argument myThid in last position, cvs header ...)
433     - for now, fix conservation problem by exchanging KPPviscAz (may not
434       be the best fix)
435    o pkg/seaice
436     - check for inconsistent evp parameter/cpp-flag combination
437     - remove leftover errIO flat for obsolete name list error handling
438    o OpenAD
439     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
440    
441    checkpoint59a
442    o pkg/seaice: some parameter clarifications and a little bit of clean up
443    o pkg/thsice: rename run-time parameters:
444       himin       -> hIceMin
445       himin0      -> hThinIce
446       hihig       -> hThickIce
447       i0          -> i0swFrac
448       transCoef   -> bMeltCoef
449       frac_energy -> fracMelting
450      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
451       with default values (for now) that do not change the results.
452      remove old version of thsice vars advection in pkg/seaice.
453    o in FFIELDS.h:
454      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
455      - make pLoad & sIceLoad always available (but still only used if
456         ATMOSPHERIC_LOADING is #define).
457    o pkg/kpp: replaced _KPP_RL with _RL
458    o bug fixes for vertical diffusivity computations when both KPP and
459        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
460        are no longer updating the vertical diffusivity array
461        (passed as argument) but are (re-) setting those arrays.
462    o pkg/seaice: fix bug in evp solver, while doing that
463      - change (improve?) discretization of stress computations for both
464        cgrid-lsr and evp solver
465      - add a new routine to compute strain rates
466      - the above changes lab_sea results
467      - add no slip conditions for evp solver (off by default), lsr-version
468        may follow
469      - fix exchange for shear at Z-points (does not change lab_sea)
470      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
471        (to force the user to pick a time step since there is not "safe" way
472        of choosing it)
473      - add principal stress diagnostics
474      - rearrange fields for evp a little to avoid having to call a: too many
475        exchanges and b: exchanges for stress trensor components which we do
476        not have.
477      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
478        of evp, complete rewrite for lsr case (latter is does not yet work
479        in all cases)
480    o pkg/kpp: add code to have mixing in shelf ice caverns
481      - add myThid to all kpp routines (long overdue)
482    
483    checkpoint59
484    o pkg/exf:
485      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
486        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
487      - move exf header files from lower_case.h to UPPER_CASE.h ;
488        add missing cvs Header & Name
489      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
490      - add namelist param. selectStressGridPosition, exf_monFreq
491      - retire many _CLIM routines, and remove data.exf_clim
492        + params moved to data.exf
493        + climsst, climsss now handled by exf_set_gen, i.e.
494          climss?period=0 refers to constant field,
495          climss?period=-12 to monthly forcing
496      - split up namelists in data.exf
497    o pkg/seaice:
498      - remove seaice_exch and seaice_exch_uv
499      - remove superfluous exchange of theta
500      - add myThid to seaice_budget_ocean/ice
501      - add new interface for atmospheric wind forcing (C-grid only)
502        + new routine
503        + two new field (taux, tauy for stress over ice)
504        + removed one global field (DAIRN) for C-grid case only
505    o pkg/thsise
506      - 2nd set of modifs for thsice adjoint in conjunction with exf
507    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
508    
509    checkpoint58y_post
510    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
511      vertical diffusivity, similar to that in MOM4; turned on using
512      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
513      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
514    o Added capability for 3D specification of background vertical diffusion
515      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
516      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
517      "data" file that contains the 3D vertical diffusivity coefficients.
518    o ice dynamics (pkg/seaice) with thsice thermodynamics:
519      - add code within pkg thsice to advect & diffuse sea-ice fields
520      similar to (and will replace) what has been added in  seaice_advdiff.F,
521      but: - conserving Mass, Heat & Salt.
522           - better when using non-linear advection scheme (not yet fully tested)
523           - can also be used in atmospheric set-up (for now, only the diffusion).
524    
525    checkpoint58x_post
526    o IO option for global-file compact format:
527      - add options when generating topology (utils/exch2/matlab-topology-generator)
528      - add I/O capability (pkg/mdsio).
529      - adapt utils/matlab/rdmds.m to read this format.
530      for now long-line format not yet supported by pkg/mdsio (& exch2).
531    o shelfice: add a few diagnostics
532    
533    checkpoint58w_post
534    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
535      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
536      (and replace horiVertRatio in NH code).
537      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
538                         and tutorial_plume_on_slope (sensitive to truncation)
539    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
540      directly to drive seaice model (C-grid only)
541    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
542     - reintroduce computation of wind from stress,
543     - compute tau (in exf_bulkformulae.F) from windstress averaged to
544       mass points to avoid tau = 0
545     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
546    o rdmnc.m: make it work with "global" files created with gluemnc
547    o rdmnc.m : some improvements in dealing with singleton dimension
548      (tested on all testreport mnc output files).
549    o genmake2: disable pkg/profiles if netcdf test fails.
550    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
551    o move call to cal_readparms up to make calendar parameters/variable available
552      to all packages
553    
554    checkpoint58v_post
555    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
556      useDynP_inEos_Zc tested.
557    o pkg/exf: changes to properly interpolate/mask/scale initial fields
558    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
559      and portions thereof.  See read_cs.txt for description and examples.
560    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
561      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
562      following the great-circle arc between those 2 points.
563    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
564      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
565    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
566     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
567     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
568     - still needs work (not working with some options ; efficiency to improve)
569       and serious testing.
570     - use this scheme for temperature & salinity in 2 advection test exp.:
571       advect_xy & advect_xz, respectively.
572    
573    checkpoint58u_post
574    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
575    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
576    o testreport: add option "-skipdir" to skip some test.
577    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
578      momentum calculation.
579    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
580    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
581      remove checkpoint.F and the_correction_step.F (no longer used);
582      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
583    o add option (linFSConserveTr) to correct for tracer source/sink due to
584      Linear Free surface
585    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
586    o pkg/thsice: fix reading mnc-pickups
587    
588    checkpoint58t_post
589    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
590    o pkg/mdsio:
591     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
592       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
593       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
594     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
595     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
596       either MDS_READ_FIELD or MDS_WRITE_FIELD )
597     - new S/R (to replace MDSWRITEMETA), which allows to write more
598       informations (variable names, time ...) to meta files.
599     - modify rdmds.m to give back the meta file content.
600    o pkg/diagnostics: change vertical interpolation to be safer, and more
601       flexible (define p-levels to interpolate to in data.diagnostics);
602      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
603       diagnostic pointer.
604    o pkg/seaice: more cleaning up of seaice_growth, added many comments
605    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
606    o fix multi-category seaice:
607     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
608       SEAICE_MULTICATEGORY
609     - fix short wave heat flux
610    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
611       and allow to use EVP solver. Change forward lab_sea: test both EVP
612       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
613    o Initial check-in of lab_sea adjoint
614      (very similar to natl_box_adjoint/code_seaice)
615      * used C-grid and EVP solver
616      * used KPP, GM/Redi
617      * uses inAdExact=.TRUE.
618      * gradient checks fail for both ADM and TLM
619        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
620        f.d. gradients actually seem more problematic than ADM, TLM gradients;
621        issue is related to forward mismatch between g77 an ifort
622    o pkg/seaice: overhaul of thermodynamics
623     - growth.F and groatb.F are replaced by new routine seaice_growth.F
624     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
625     - move a few global fields out of SEAICE.h into seaice_growth.F and
626       make them 2D (FICE/QNETO/ ...)
627     - remove FO (it is the same as QNETO)
628     - introduce a few local fields to avoid modifying external fields such
629       as atemp, etc.
630    
631    checkpoint58s_post
632    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
633      changed exf_set_gen.F so that
634        genperiod=0 means input file is one time-constant field and
635        genperiod=-12 means input file contains 12 monthly means
636  o CG2D: use pre-computed solver main-diagonal (stored in common block);  o CG2D: use pre-computed solver main-diagonal (stored in common block);
637    this affects truncation error ; generate new output file for exp. which    this affects truncation error ; generate new output file for exp. which
638    fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),    fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),

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