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revision 1.662 by mlosch, Tue May 30 22:49:21 2006 UTC revision 1.950 by mlosch, Fri Feb 1 11:06:33 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/mnc: have mnc create marginally meaning full coordinate variables
8      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
9    o pkg/mypackage:
10      - add example of read/write pickup for state-var ;
11      - add entry points to the main code for state-vars diags & write-pickup.
12    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
13      transitions for useExfYearlyFields
14      - add new subroutine that determines the file to read from for
15        use*YearlyFields = .TRUE. and .FALSE.
16      - add a verification experiment to global_with_exf that tests
17        useExfYearlyFields with USE_EXF_INTERPOLATION defined
18    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
19      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
20      subroutines (which could be generated from a template, because they are
21      almost identical), for now they are included in obcs_prescribe_read.F for
22      simplicity
23    o pkg/exf:
24      - add a little more diagnostic to exf_interp_read (in analogy to
25        mds_read_field, can be turned off with debugLevel < debugLevA=1)
26      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
27        ugly but fast by unrolling short inner loops, inserting a unroll=8
28        directive in routine lagran, and splitting a loop and making do while the
29        outermost loop (the latter requires the intoduction of index arrays)
30    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
31    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
32      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
33    o verification/seaice_obcs: updated for restart test and latest options
34    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
35      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
36      for now this is only available for the C-grid code and also within
37      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
38    
39    checkpoint59m
40    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
41      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
42    o gad_som : fix flux output (& diagnostics) to have same units as other  
43      advection scheme fluxes (was previously multiplied by deltaT).  
44    o added verification/seaice_obcs both to test seaice open boundaries
45      and to provide an example matlab scrpt for generating them
46    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
47    o pkg/salt_plume: clean up salt_plume_frac.F to
48      remove redundancy in PlumeMethod 1 and 4
49    o pkg/kpp: added saltplume diagnostics
50    o pkg/obcs and pkg/seaice:
51      - do not set uice and vice to zero when OB*icefile are unspecified
52      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
53      - moved seaice tracer obcs after call to seaice_growth
54    o pkg/salt_plume: added various options for salt plume depth
55      criterion and for vertical distribution of the salt
56    
57    checkpoint59l
58    o pkg/ptracers: new version of ptracers pickup:
59      read meta file and write only fields which are needed to restart.
60      ( same logic as main pickup file ; also using pickupStrictlyMatch )
61    o pkg/seaice:
62      - add timescale for melting due to warm mixed layer as a means of
63        setting SEAICE_availHeatFrac more conveniently
64      - add a CPP-flag/runtime parameter check for flooding algorithm
65      - reformulated availHeat in seaice_growth.F to be independent of AREA
66    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
67      unit changes
68    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
69    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
70      SX vector computer.
71    o pkg/seaice:
72      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
73        seaice forcing fields can now be read only through pkg/exf
74      - removed some unused halos
75    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
76    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
77      or U/VICE from U/VWIND before computing U/VSTRESS
78    
79    checkpoint59k
80    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
81      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
82    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
83      all experiments pass when compile with un-initialised var. checking option.
84    o added pkg/salt_plume
85    o script to test restart (for now, in MITgcm_contrib/jmc_script)
86    o pkg/seaice: new read/write pickup version.
87      read meta file and write only fields which are needed to restart.
88      ( same logic as main pickup file ; also using pickupStrictlyMatch )
89    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
90    o lab_sea.hb87: modify the domain & update output.hb87.txt :
91      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
92      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
93      process. Fixed here by closing the domain at the Northern boundary.
94    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
95    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
96      a set of consecutive levels in/from a 3-D array.
97    o pkg/ptracers:
98      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
99      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
100    
101    checkpoint59j
102    o in pkgs: dic, obcs, offline, rbcs:
103      standard way to compute coeff. for time interpolation between 2 time reccords
104      which retains full precision (& make results less dependent on compiler).
105      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
106    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
107      packages instead of reading ice cover and wind speed separately
108    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
109     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
110      to allow to compile customized code before the update)
111    o cleaning-up:
112      - fix CPP instruction syntax in pkg/obcs
113      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
114        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
115      - fix some threads issue in IO parts.
116    o pkg/dic:
117      - add tons of "_d 0" (--> much better testreports !)
118       and then update outputs of tutorial_global_oce_biogeo
119    o pkg/mom_fluxform:
120      add a special version of momentum advection intended to conserve momentum
121      next to a bathymetry step or a coastline edge. (default = off = #undef)
122    o new read/write pickup version:
123      - for now, only implemented for main (mdsio) pickup file.
124      - write out only what is needed to restart; merge pickup_nh , pickup_ph
125        and main pickup together.
126      - read meta file; read only what is needed to restart; stop if a field
127        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
128        if it make sense (even if the restart is not perfect).
129      - if no meta file, assume that pickup to read corresponds exactly to
130        a pickup that would currently be written.
131      - read pickup written in the old format (until checkpoint59i) if it
132        recognizes an old meta file (no field-list).
133      - add a meta file in exp. which starts from a pickup: 2 cases:
134        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
135         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
136        b) a meta file describing the content of the associated pickup file
137         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
138    o pkg/mdsio & pkg/rw:
139      - new routine to read a meta file ; new set of routine to read
140        Multiple-fields file (with meta file).
141    o added open boundary conditions capability for seaice
142        HSNOW, HSALT, UICE, and VICE
143    
144    checkpoint59i
145    o adjoint:
146      * fix multiDimAdvection adjoint
147        (partial recomputation problem by TAF for fVerT(:,:,kDown)
148        and comlev1 size definition (maxpass vs. max. number of tracers)
149      * verification/global_ocean.90x45x15 adjoint now tests
150        NLFS and multiDimAdvection using DST3 (=30)
151      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
152    o pkg/kpp: add "_d 0" to real constant (if missing);
153      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
154      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
155    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
156      for internal parameters related to restart process (formerly from PARAMS.h)
157      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
158    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
159      as argument. (only atm2d & obcs write_pickup have not yet been updated)
160    o pkg/monitor:
161      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
162      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
163      - account for deep Atmosphere factor and density factor (anelastic)
164    o added open boundary conditions capability for seaice HEFF and AREA
165    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
166      thermodynamics
167      - requires a little reorganization, which affects the testreport results
168        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
169        so that now the conservative form is tested
170      - add a few comments
171    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
172    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
173    o add new diagnostics to seaice: advective, diffusive fluxes (only for
174      multidim-advection, for scheme 2 they are not filled) and transports,
175      thermodynamic growth rates
176    o change units of EmPmR (inside the code, + within coupling interface)
177      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
178      Affects results @ truncation level (cg2d match) and update output of
179       experiments: lab_sea(6), global_ocean.90x40x15(10),
180      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
181      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
182      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
183      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
184    
185    checkpoint59h
186    o pkg/exf:
187      - improve vectorization by moving if-statement out of loops in
188        exf_mapfields, exf_radiation
189      - exf_bulkformulae.F: introduce 2D fields and vectorize code
190    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
191    o testreport:
192      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
193        monitor & update offline_exf_seaice exp. output.
194      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
195    o pkg/seaice:
196      - bug fix in the evp solver: boundary conditions were affected be
197        masking of zMax/zMin (changes results)
198      - minor bug fix in boundary conditions in seaice_calc_strainrates
199        (changes results for no_slip)
200      - seaice_lsr.F: make interpolation of eta dependent on boundaries
201      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
202      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
203        stress formulation and no-slip boundary conditions
204    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
205      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
206    o pkg/seaice: a first HSALT time stepping equation has been checked in
207    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
208      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
209      without requiring DO-IF statements
210    o pkg/thsice:
211      use continuous power-law function for partition of energy between lateral
212      melting/freezing and thinning/thickening ; old code using step function
213      still available with #undef THSICE_FRACEN_POWERLAW
214      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
215    o testreport: change AD testing : check against results/output_adm.txt
216      using same scripts as for forward test.
217    
218    checkpoint59g
219    o adjoint testing: in preparation for changing testreport:
220      - output format: cost and grad written on separated lines
221      - ad output results in directory "results" (instead of "results_ad")
222    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
223    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
224    o pkg/ecco: allow user defined cost function contributions
225    o testreport:
226      Allow to choose (per experiment) the list of tested output variables
227       and the main variable (used to issue a pass/FAIL ) ;
228      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
229      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
230      Also modify printing of summary:
231       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
232       b) echo the list of tested variables in the individual summary.txt of
233          each experiment.
234    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
235      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
236      (but still depend on the tile decompostion of the domain).
237    o pkg/seaice: change a discretization detail to make the B-grid code
238      "more symmetric". This change is likely to remove all "ridges/leads" that
239      where quasi-aligned with the grid in B-grid solutions. It may also be
240      the solution to the stress coupling issues with the B-grid.
241    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
242      remove .cvsignore from input dir. (since testreport no longer run here).
243    o pkg/thsice:
244     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
245     - fix reshaping of sea-ice just after advection:
246       melt all the ice only if ice-volume is too small.
247     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
248       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
249     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
250    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
251      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
252    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
253      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
254      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
255      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
256      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
257      -> update output.txt
258    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
259     this affects truncation error: -> update output.txt of exp:
260      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
261      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
262    
263    checkpoint59f
264    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
265    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
266      a bounded range (in forward mode)
267    o pkg/ecco, ctrl, autodiff and mom_common:
268     internal parameter controls, completements of implementations
269    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
270    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
271      (not seem any difference in testing results).
272    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
273       at face corners.
274    o pkg/generic_advdiff:
275     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
276      loop range indices for computing vertical advection tendency
277      and do the calculation in the interior only (no overlap) ;
278      for now, only implemented for SOM advection (to save CPU time).
279     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
280    o exch2 adjoint
281      First set of changes:
282      - add exch2 hand-written adjoint templates
283      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
284        This will require cleanup in pkg/autodiff/*.F
285        (changed routines currently kept separate in verif. code/)
286      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
287        that used to hide exch2 or cubed-sphere specific code
288        (commented via 'cph-exch2')
289    o pkg/seaice
290      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
291    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
292       output of global_ocean.cs32x15.thsice .
293    
294    checkpoint59e
295    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
296      for B-grid vector (not yet tested) and C-grid vector (<- only used
297      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
298    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
299      (#ifdef ALLOW_SALT_PLUME)
300    o gather_2d/scatter_2d: removed halo regions
301    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
302      scheme and the corresponding test case (under front_relax dir). For now,
303      only available with Skew-flux form and not yet tested in realistic set-up.
304      adjoint: store directives updated, but gradient checks deteriorated,
305      so maybe GM/Redi adjoint is now broken.
306    o seaice adjoint
307      * add AREA, HEFF, HSNOW as control variable
308        (should not change lab_sea results)
309      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
310    o pkg/seaice:
311      * added computation of saltFlux in seaice_growth;
312        For time being, sea ice salinity is assumed constant
313        contribution of snow flooding to freshening of sea ice is neglected.
314        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
315        defaults to 0.0 in order to maintain backward compatibility.
316        Typical values for SEAICE_salinity are 4 to 10 g/kg.
317      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
318      * added SEAICE_availHeatFrac, which specifies fraction of surface level
319        heat content used to melt or grow ice
320      * commented out cap of HICE: it helps keep ice thinner
321      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
322      * applied OBCS T/S mask to HEFFM sea ice mask
323    
324    checkpoint59d
325    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
326     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
327     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
328    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
329     and change default value of parameter "GM_Small_Number";
330     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
331       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
332       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
333    o pkg/ecco: cost function when applying pkg/smooth to controls
334    o pkg/ctrl: add forcingPrecond run time parameter
335    o pkg/seaice:
336     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
337     - fix bug in metric terms of u-equation in LSR solver (implicit part),
338       changes verification/lab_sea
339     - rearrange implicit part of u-equation in LSR solver to make it easier to
340       read, understand, and debug. This causes changes at the truncation level.
341     - fix (serious) bug in the boundary conditions (sign error in the implicit
342       part) of the LSR solver. Changes all LSR results.
343     - fixed problem with HSNOW initialization to avoid thick snow when AREA
344       is initilized with small values - does not change lab_sea results.
345     - added HsnowFile initialization capability
346    o pkg/smooth: addition to model/src and pkg/ctrl so allow
347     initialization of pkg/smooth and application to control vector
348    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
349    o dependencies: pkg/profiles requires pkg/cal
350    o pkg/profiles:
351     - added option ALLOW_PROFILES_GENERICGRID
352         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
353         that interpolation information (grid points and coefficients) is provided
354         within the netcdf input files.
355         -> sample matlab scripts can be found in MITgcm_contrib/gael
356         that allow you to prepare netcdf input files.
357     - also modified: cleaner include statements, cleaner error print statements,
358       cleaner stops when error, and more tests of the netcdf input files consistency.
359    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
360    o pkg/seaice:
361     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
362       requires a new routine: seaice_diagnostics_fill.F
363     - make sure that seaice does not move if not forced (pressure replacement
364       method, Hibler and Ip, 1995), changes results
365     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
366     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
367       It is turned off by default (=-1.), because it changes the results.
368     - make it possible to read AREA from a file, too.
369    
370    checkpoint59c
371    o add S/R and diagnostics for oceanic mixed-layer depth
372    o move GMRedi call after all vertical mixing schemes (including KPP)
373    o pkg/thsice:
374     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
375      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
376    o pkg/obcs:
377     - bug fix for balance code
378    o pkg/seaice:
379      - allow values of SEAICE_elasticParm > 1
380      - add new parameter SEAICE_evpTauRelax as an alternative
381        to SEAICE_elasticParm
382      - make lsr boundary conditions free slip (by default), changes result
383      - add code for no slip boundary conditions for lsr
384      - set minimum of zeta to zero (and not 4e8) (changes results)
385      - add a cap on AREA after advecting AREA if seaice_growth is not called
386    o change calculation of Visbeck K:
387      - no longer depend on tapering scheme; instead, compute slope (limited
388        by GM_maxSlope). this is equivalent to what was comuted before with
389        clipping or linear tappering.
390      - fix vertical averaging (wrong by 1/2 level)
391      - leave the old version (but will not be maintained) within
392        #ifdef OLD_VISBECK_CALC / #endif
393      - update output of exp. ideal_2D_oce
394    o change error catch in calc_r_star to improve vectorization
395    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
396      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
397    o adjoint:
398      Re-organized adjoint checkpointing according to Matt Mazloff
399      (but with modifs/completions/cleanups)
400      Storing is now bundled into large arrays to optimized I/O
401      (and second step in cleanup of the_main_loop)
402    
403    checkpoint59b
404    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
405      - export/import (between ocean & coupler) fields needed for ocean DIC.
406    o pkg/seaice:
407      - get rid of three more exchanges seaice_calc_viscosities (required
408        different loop boundaries in seaice_lsr and seaice_ocean_stress)
409      - bug fix in seaice_ocean_stress (update of lab_sea required)
410      - reduce loop boundaries to necessary minimum also in seaice_evp
411      - go back to the old way of computing deltaC/Z as the adjoint likes that
412        better
413    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
414      passive tracer to an Age Tracer) + update output.txt
415    o pkg/exf:
416      - implement A-grid / C-grid selection for wind-stress input files.
417      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
418      for now, in exf_bulk_largeyeager04.F only :
419      - change implementation for case where windspeed + 2. components wind-stress
420        are read-in. AND use rhoConstFresh to convert evap.
421    o pkg/seaice:
422      - use correct EXCH_UV for wind-forcing (on A-grid).
423      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
424        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
425    o pkg/exf:
426      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
427      EXF_INTERPOLATION:
428      - merge global_with_exf/code version of exf_interp_read.F
429        to the main code ;
430      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
431        reading the file ; Important: This options needs to be defined to recover
432        previous code.
433        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
434      - no longer loose real*8 precision along the way when using exf_iprec=64.
435    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
436      - change discretisation of evp-solver in order to avoid another exchange
437        (changes lab_sea) and clean up a little
438      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
439        help the adjoint (this also changes the results slightly)
440      - add a few "_d 0" where they had been missing in seaice_evp.F
441      - cleaning up: remove unused seaice_calc_rhs.F
442    o pkg/exf: some cleaning-up:
443      - change various "constants" into runtime parameters
444      - cleaned-up Large&Yeager04 routine which should eventually
445        replace exf_bulkformulae.F (changed names of S/R and CPP)
446        and merged various ALLOW_ATM_WIND options
447     only used with thsice pkg (in thsice_get_exf.F):
448      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
449        which are used when useStabilityFct_overIce=TRUE (= the default)
450      - change default values of ice & snow emissivity and scale downward LW
451        by ice & snow emissivity.
452    o pkg/thsice:
453     fix few little problems, in thsice_calc_thickn.F:
454      - growth vertically (and not laterally) if iceFrac == iceMaskMax
455      - melt only laterally if hIce < hThinIce (as the comments say)
456      and in thsice_extend.F:
457      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
458      - start to form ice as soon as the minimum ice-volume is reachable.
459     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
460      and cpl_aim+ocn
461    o pkg/kpp
462     - move computation of surface related input fields to KPP into a new
463       subroutine kpp_forcing_surf.F
464     - remove wrong (within bi,bj loops) EXCH calls.
465     - little cleaning (add argument myThid in last position, cvs header ...)
466     - for now, fix conservation problem by exchanging KPPviscAz (may not
467       be the best fix)
468    o pkg/seaice
469     - check for inconsistent evp parameter/cpp-flag combination
470     - remove leftover errIO flat for obsolete name list error handling
471    o OpenAD
472     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
473    
474    checkpoint59a
475    o pkg/seaice: some parameter clarifications and a little bit of clean up
476    o pkg/thsice: rename run-time parameters:
477       himin       -> hIceMin
478       himin0      -> hThinIce
479       hihig       -> hThickIce
480       i0          -> i0swFrac
481       transCoef   -> bMeltCoef
482       frac_energy -> fracMelting
483      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
484       with default values (for now) that do not change the results.
485      remove old version of thsice vars advection in pkg/seaice.
486    o in FFIELDS.h:
487      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
488      - make pLoad & sIceLoad always available (but still only used if
489         ATMOSPHERIC_LOADING is #define).
490    o pkg/kpp: replaced _KPP_RL with _RL
491    o bug fixes for vertical diffusivity computations when both KPP and
492        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
493        are no longer updating the vertical diffusivity array
494        (passed as argument) but are (re-) setting those arrays.
495    o pkg/seaice: fix bug in evp solver, while doing that
496      - change (improve?) discretization of stress computations for both
497        cgrid-lsr and evp solver
498      - add a new routine to compute strain rates
499      - the above changes lab_sea results
500      - add no slip conditions for evp solver (off by default), lsr-version
501        may follow
502      - fix exchange for shear at Z-points (does not change lab_sea)
503      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
504        (to force the user to pick a time step since there is not "safe" way
505        of choosing it)
506      - add principal stress diagnostics
507      - rearrange fields for evp a little to avoid having to call a: too many
508        exchanges and b: exchanges for stress trensor components which we do
509        not have.
510      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
511        of evp, complete rewrite for lsr case (latter is does not yet work
512        in all cases)
513    o pkg/kpp: add code to have mixing in shelf ice caverns
514      - add myThid to all kpp routines (long overdue)
515    
516    checkpoint59
517    o pkg/exf:
518      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
519        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
520      - move exf header files from lower_case.h to UPPER_CASE.h ;
521        add missing cvs Header & Name
522      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
523      - add namelist param. selectStressGridPosition, exf_monFreq
524      - retire many _CLIM routines, and remove data.exf_clim
525        + params moved to data.exf
526        + climsst, climsss now handled by exf_set_gen, i.e.
527          climss?period=0 refers to constant field,
528          climss?period=-12 to monthly forcing
529      - split up namelists in data.exf
530    o pkg/seaice:
531      - remove seaice_exch and seaice_exch_uv
532      - remove superfluous exchange of theta
533      - add myThid to seaice_budget_ocean/ice
534      - add new interface for atmospheric wind forcing (C-grid only)
535        + new routine
536        + two new field (taux, tauy for stress over ice)
537        + removed one global field (DAIRN) for C-grid case only
538    o pkg/thsise
539      - 2nd set of modifs for thsice adjoint in conjunction with exf
540    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
541    
542    checkpoint58y_post
543    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
544      vertical diffusivity, similar to that in MOM4; turned on using
545      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
546      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
547    o Added capability for 3D specification of background vertical diffusion
548      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
549      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
550      "data" file that contains the 3D vertical diffusivity coefficients.
551    o ice dynamics (pkg/seaice) with thsice thermodynamics:
552      - add code within pkg thsice to advect & diffuse sea-ice fields
553      similar to (and will replace) what has been added in  seaice_advdiff.F,
554      but: - conserving Mass, Heat & Salt.
555           - better when using non-linear advection scheme (not yet fully tested)
556           - can also be used in atmospheric set-up (for now, only the diffusion).
557    
558    checkpoint58x_post
559    o IO option for global-file compact format:
560      - add options when generating topology (utils/exch2/matlab-topology-generator)
561      - add I/O capability (pkg/mdsio).
562      - adapt utils/matlab/rdmds.m to read this format.
563      for now long-line format not yet supported by pkg/mdsio (& exch2).
564    o shelfice: add a few diagnostics
565    
566    checkpoint58w_post
567    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
568      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
569      (and replace horiVertRatio in NH code).
570      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
571                         and tutorial_plume_on_slope (sensitive to truncation)
572    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
573      directly to drive seaice model (C-grid only)
574    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
575     - reintroduce computation of wind from stress,
576     - compute tau (in exf_bulkformulae.F) from windstress averaged to
577       mass points to avoid tau = 0
578     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
579    o rdmnc.m: make it work with "global" files created with gluemnc
580    o rdmnc.m : some improvements in dealing with singleton dimension
581      (tested on all testreport mnc output files).
582    o genmake2: disable pkg/profiles if netcdf test fails.
583    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
584    o move call to cal_readparms up to make calendar parameters/variable available
585      to all packages
586    
587    checkpoint58v_post
588    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
589      useDynP_inEos_Zc tested.
590    o pkg/exf: changes to properly interpolate/mask/scale initial fields
591    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
592      and portions thereof.  See read_cs.txt for description and examples.
593    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
594      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
595      following the great-circle arc between those 2 points.
596    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
597      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
598    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
599     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
600     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
601     - still needs work (not working with some options ; efficiency to improve)
602       and serious testing.
603     - use this scheme for temperature & salinity in 2 advection test exp.:
604       advect_xy & advect_xz, respectively.
605    
606    checkpoint58u_post
607    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
608    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
609    o testreport: add option "-skipdir" to skip some test.
610    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
611      momentum calculation.
612    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
613    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
614      remove checkpoint.F and the_correction_step.F (no longer used);
615      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
616    o add option (linFSConserveTr) to correct for tracer source/sink due to
617      Linear Free surface
618    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
619    o pkg/thsice: fix reading mnc-pickups
620    
621    checkpoint58t_post
622    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
623    o pkg/mdsio:
624     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
625       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
626       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
627     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
628     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
629       either MDS_READ_FIELD or MDS_WRITE_FIELD )
630     - new S/R (to replace MDSWRITEMETA), which allows to write more
631       informations (variable names, time ...) to meta files.
632     - modify rdmds.m to give back the meta file content.
633    o pkg/diagnostics: change vertical interpolation to be safer, and more
634       flexible (define p-levels to interpolate to in data.diagnostics);
635      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
636       diagnostic pointer.
637    o pkg/seaice: more cleaning up of seaice_growth, added many comments
638    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
639    o fix multi-category seaice:
640     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
641       SEAICE_MULTICATEGORY
642     - fix short wave heat flux
643    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
644       and allow to use EVP solver. Change forward lab_sea: test both EVP
645       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
646    o Initial check-in of lab_sea adjoint
647      (very similar to natl_box_adjoint/code_seaice)
648      * used C-grid and EVP solver
649      * used KPP, GM/Redi
650      * uses inAdExact=.TRUE.
651      * gradient checks fail for both ADM and TLM
652        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
653        f.d. gradients actually seem more problematic than ADM, TLM gradients;
654        issue is related to forward mismatch between g77 an ifort
655    o pkg/seaice: overhaul of thermodynamics
656     - growth.F and groatb.F are replaced by new routine seaice_growth.F
657     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
658     - move a few global fields out of SEAICE.h into seaice_growth.F and
659       make them 2D (FICE/QNETO/ ...)
660     - remove FO (it is the same as QNETO)
661     - introduce a few local fields to avoid modifying external fields such
662       as atemp, etc.
663    
664    checkpoint58s_post
665    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
666      changed exf_set_gen.F so that
667        genperiod=0 means input file is one time-constant field and
668        genperiod=-12 means input file contains 12 monthly means
669    o CG2D: use pre-computed solver main-diagonal (stored in common block);
670      this affects truncation error ; generate new output file for exp. which
671      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
672        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
673        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
674        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
675        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
676        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
677    o start implementation of deep-atmosphere and anelastic formulation
678    o verification: remove 2nd copy of input files and use script "prepare_run"
679      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
680    o mom_common/vecinv/fluxform: fix a few initialisation isssues
681    o profiles: fix for multithreaded case
682    
683    o diagnostics: rename few diags:
684      s/'PRESSURE'/'RCENTER '/g
685      s/'TICE    '/'oceFreez'/g
686      s/'TAUX    '/'oceTAUX '/g
687      s/'TAUY    '/'oceTAUY '/g
688      s/'SWFLUX  '/'oceQsw  '/g
689      s/DIFx/DFxE/g
690      s/DIFy/DFyE/g
691      and add few ocean-forcing diagnostics:
692      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
693    o modifications to pkg/seaice/growth.F and budget.F, which change results of
694      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
695      as actual snow thickness.  It now refers everywhere to effective snow
696      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
697    
698    checkpoint58r_post
699    o modifications to pkg/seaice/growth.F, which change results of
700      lab_sea experiment: fixes pertain to melting snow over open water, to
701      masking EVAP under sea ice, and to using the correct AREA variable for
702      computations of EVAP, PRECIP, HSNOW, and GHEFF
703    o add ability to read bathy, salt, and theta using MNC (off by def)
704    o add flooding algorithm and advection of HSNOW for pkg/seaice;
705      both are turned off by default and do no change any results
706    o seaice advection with pkg/thsice: a step toward the use of non-linear
707      advection scheme, but #ifdef or commented out for now (requires more EXCH).
708    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
709      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
710      in natl_box (affects results @ truncation level: update output.txt)
711    o multi-threading and IO:
712      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
713      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
714        (needed to work with SingleCpuIO): tested in all verif. exp.
715    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
716      affects the results (but none of the verification test uses this scheme).
717    o Adding some pkg/diagnostics capability to pkg/seaice
718      (will certainly be subject to changes)
719    o ctrl: adding new control variables:
720      lwflux, lwdown, evap, snowprecip, apressure, runoff
721    
722    checkpoint58q_post
723    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
724      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
725      high_res_cube configuration by 4% on Columbia.
726    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
727      add (in global_with_exf/code) a version of EXF_INTERP_READ without
728      dynamical allocation (seems to work in multi-threaded).
729    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
730      single CPU io) so that TAF does not have to see EESUPPORT.h
731    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
732    
733    checkpoint58p_post
734    o obcs: stop if obcs is used with useCDscheme = .true.
735    o shelfice:
736     - fix a sign error so that no slip at shelfice interface works
737     - remove stop for combination non-hydrostatic code and shelfice. That does
738       not mean, that the results are correct, but at least they are numerically
739       stable
740    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
741    o added adjoint exch routined for all exch*3d* routines
742      and updated flow directives
743    
744    checkpoint58o_post
745    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
746      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
747    o change controling S/R for writing pickup file (new S/R do_write_pickup)
748      and clean-up reading/writing of pickup files.
749    o fix local version of read/write pickup (NH part) in rotating_tank/code
750    o simplify EXCH interface:
751     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
752     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
753    o added the regrid package
754    o shelfice:
755     - add a simple boundary layer scheme to reduce noise
756     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
757    
758    checkpoint58n_post
759    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
760       local variable (not in common block).
761    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
762      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
763      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
764        to work with SingleCpuIO.
765    o add "_d 0" to real constant of pkg/cfc subroutines ;
766       update exp. cfc_exemple & tutorial_cfc_offline output files.
767    o multi-threading and IO:
768      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
769        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
770      - barrier before and after reading.
771      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
772      - avoid using MDS_WRITELOCAL for LAND pkg output.
773      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
774        common-block variables ; Allows multi-threading with master-thread IO.
775    o change default MAX_NO_THREADS from 32 to 4 ;
776      and stop cleanly when MAX_NO_THREADS is too small.
777    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
778    
779    checkpoint58m_post
780    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
781       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
782    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
783       keep global_ocean.90x40x15 (for AD testing) with former secondary test
784       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
785    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
786        add MITgcm_tutorials (= code + all the tutorials)
787    o ecco, option to compute cost for total ssh (mean+anom)
788    o consistent with addition of ptracer and ssh in pkg/profiles
789    o profiles: adding ptracer and ssh
790    o testreport: change multi-test output-file name
791      (from output.txt.{name} to output.{name}.txt)
792    o profiles: now ok for mutli-tiles case
793    o seaice: add 4 parameters for different advection schemes for area,
794      (effective) seaice thickness, enthalphy, and snow height. Their default
795      is the standard parameter SEAICEadvScheme
796    o calc_gw:
797     - add cosFacU in zonal viscous flux (harmonic.visc.).
798     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
799       of tutorial_plume_on_slope.
800    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
801    o calc_gw: true flux-form, account for horizontal grid spacing.
802      update rotating_tank results, but not plume_on_slope (affected at
803      truncation level, 11 digits).
804    
805    checkpoint58l_post
806    o calc_gw:
807     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
808     - remove side-drag for now (need to fix it); update plume_on_slope results.
809     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
810    o commit code to make SST/SSS weights spatially variable
811      (based on either variable in-situ or variable initial T/S weights)
812    o pkg/ecco:
813      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
814        now based on horizontally varying weights wthetaLev, wsaltLev
815      * cost_averagesflags now returns year indices in addition to day, month
816      * sflux balance is performed on annual basis
817        (sflxumm, sfluxmm2, bal_sfluxmm)
818      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
819        including separate counting and multipliers
820    o pkg/rbcs
821      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
822    
823    checkpoint58k_post
824    o testreport:
825     - always build in dir. "build" (if not there, mkdir build instead of building
826       & running in input)
827     - run in dir run (if it exists), in build otherwise.
828     - call prepare_run (if input/prepare_run exists)
829     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
830    o pkg/exf modifications to interpolation and rotation routines for more
831       reasonable treatment of North Pole singularity: for tracers North Pole
832       value is set to northernmost zonal-mean value, for zonal velocity it is
833       set to zero, and for meridional velocity it is set to northernmost value.
834    o pkg/exf/exf_check_range.F
835     - add tile index to diagnostics and move stop statement to the very
836       end of the routine.
837    o pkg/diagnostics: (diagnostics_main_init.F)
838      define title of isomorphic variables according to the current config.
839    o pkg/thsice with pkg/seaice dynamics:
840    - fix domain of computation (interior only, required for exf) and do exchanges
841    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
842    o towards a standard way of dealing with multi-threading in MONITOR
843      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
844    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
845       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
846    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
847    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
848    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
849       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
850    o tracer advection:
851     - clean-up and simplify calc_common_factors.F
852     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
853       advection subroutine (but still not used within DST advection S/R)
854    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
855    
856    checkpoint58j_post
857    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
858      from file (collects calls previously in FORWARD_STEP)
859    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
860    o adjoint store dir. adjusted accordingly
861    o genmake2
862      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
863    
864    checkpoint58i_post
865    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
866      on wind stress (SEAICEstressFactor defaults to 1.)
867    o Total number of Timers is finite (<=40): comment out 2 non-essential one
868      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
869    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
870      on CS-grid: no longer loosing mass.
871    o exf & curvilinear-grid: no longer modify longitude xC & xG.
872    o pkg/ggl90: fix sloppy output and fix a bug
873    o pkg/seaice: added SEAICEuseEVPpickup parameter
874      - Set to false in order to start EVP solver with
875        non-EVP pickup files when using SEAICEuseEVP
876      - fix sign error in diffusion in seaice_calc_rhs
877    
878    checkpoint58h_post
879    * Modifications for bottom topography control
880      o replace hFacC by _hFacC at various places
881      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
882      o add non-self-adjoint cg2d_nsa
883      o update autodiff support routines
884      o re-initialise hfac after ctrl_depth_ini
885      o works for 5x5 box, doesnt work for global_ocean.90x40x15
886    * Adding verification for 5x5 box (4-layer) bottom topography control
887    
888    checkpoint58g_post
889    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
890       used for mean seasonal cycle, mean diurnal cycle); add an example
891       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
892    o pkg/ggl90:
893      - add parameter (minimum surface kinetic energy)
894      - fix bug (avoiding division by zero)
895    o couple pkg/thsice to pkg/seaice:
896      - modify advection in seaice to accomodate new scalar fields to be advected
897      - only muliDimAdection scheme work with seaice/thsice
898      - mapping of thsice-variables to seaice-variables, back and forth
899      - does not break the verification experiments, but does not give the
900        desired results either
901    o pkg/seaice
902      - make (default) second order advection a bit less confusing?
903    
904    checkpoint58f_post
905  o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice  o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
906    to pkg/seaice):    to pkg/seaice):
907    - new routines thsice_map_exf and thsice_get_exf provide the interface    - new routines thsice_map_exf and thsice_get_exf provide the interface
# Line 16  o pkg/exf: Line 914  o pkg/exf:
914      exf_radiation, exf_wind      exf_radiation, exf_wind
915    - add new parameters and constants: longwave emissivity for ocean, ice    - add new parameters and constants: longwave emissivity for ocean, ice
916      and snow, evaporation parameters over ice      and snow, evaporation parameters over ice
917      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
918        either wind from stress or stress from wind
919  o pkg/thSIce:  o pkg/thSIce:
920  - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F  - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
921  - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND  - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND

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