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revision 1.637 by mlosch, Tue Mar 21 13:00:33 2006 UTC revision 1.945 by mlosch, Thu Jan 24 18:41:16 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/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
8      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
9      subroutines (which could be generated from a template, because they are
10      almost identical), for now they are included in obcs_prescribe_read.F for
11      simplicity
12    o pkg/exf:
13      - add a little more diagnostic to exf_interp_read (in analogy to
14        mds_read_field, can be turned off with debugLevel < debugLevA=1)
15      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
16        ugly but fast by unrolling short inner loops, inserting a unroll=8
17        directive in routine lagran, and splitting a loop and making do while the
18        outermost loop (the latter requires the intoduction of index arrays)
19    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
20    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
21      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
22    o verification/seaice_obcs: updated for restart test and latest options
23    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
24      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
25      for now this is only available for the C-grid code and also within
26      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
27    
28    checkpoint59m
29    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
30      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
31    o gad_som : fix flux output (& diagnostics) to have same units as other  
32      advection scheme fluxes (was previously multiplied by deltaT).  
33    o added verification/seaice_obcs both to test seaice open boundaries
34      and to provide an example matlab scrpt for generating them
35    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
36    o pkg/salt_plume: clean up salt_plume_frac.F to
37      remove redundancy in PlumeMethod 1 and 4
38    o pkg/kpp: added saltplume diagnostics
39    o pkg/obcs and pkg/seaice:
40      - do not set uice and vice to zero when OB*icefile are unspecified
41      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
42      - moved seaice tracer obcs after call to seaice_growth
43    o pkg/salt_plume: added various options for salt plume depth
44      criterion and for vertical distribution of the salt
45    
46    checkpoint59l
47    o pkg/ptracers: new version of ptracers pickup:
48      read meta file and write only fields which are needed to restart.
49      ( same logic as main pickup file ; also using pickupStrictlyMatch )
50    o pkg/seaice:
51      - add timescale for melting due to warm mixed layer as a means of
52        setting SEAICE_availHeatFrac more conveniently
53      - add a CPP-flag/runtime parameter check for flooding algorithm
54      - reformulated availHeat in seaice_growth.F to be independent of AREA
55    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
56      unit changes
57    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
58    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
59      SX vector computer.
60    o pkg/seaice:
61      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
62        seaice forcing fields can now be read only through pkg/exf
63      - removed some unused halos
64    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
65    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
66      or U/VICE from U/VWIND before computing U/VSTRESS
67    
68    checkpoint59k
69    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
70      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
71    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
72      all experiments pass when compile with un-initialised var. checking option.
73    o added pkg/salt_plume
74    o script to test restart (for now, in MITgcm_contrib/jmc_script)
75    o pkg/seaice: new read/write pickup version.
76      read meta file and write only fields which are needed to restart.
77      ( same logic as main pickup file ; also using pickupStrictlyMatch )
78    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
79    o lab_sea.hb87: modify the domain & update output.hb87.txt :
80      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
81      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
82      process. Fixed here by closing the domain at the Northern boundary.
83    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
84    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
85      a set of consecutive levels in/from a 3-D array.
86    o pkg/ptracers:
87      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
88      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
89    
90    checkpoint59j
91    o in pkgs: dic, obcs, offline, rbcs:
92      standard way to compute coeff. for time interpolation between 2 time reccords
93      which retains full precision (& make results less dependent on compiler).
94      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
95    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
96      packages instead of reading ice cover and wind speed separately
97    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
98     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
99      to allow to compile customized code before the update)
100    o cleaning-up:
101      - fix CPP instruction syntax in pkg/obcs
102      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
103        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
104      - fix some threads issue in IO parts.
105    o pkg/dic:
106      - add tons of "_d 0" (--> much better testreports !)
107       and then update outputs of tutorial_global_oce_biogeo
108    o pkg/mom_fluxform:
109      add a special version of momentum advection intended to conserve momentum
110      next to a bathymetry step or a coastline edge. (default = off = #undef)
111    o new read/write pickup version:
112      - for now, only implemented for main (mdsio) pickup file.
113      - write out only what is needed to restart; merge pickup_nh , pickup_ph
114        and main pickup together.
115      - read meta file; read only what is needed to restart; stop if a field
116        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
117        if it make sense (even if the restart is not perfect).
118      - if no meta file, assume that pickup to read corresponds exactly to
119        a pickup that would currently be written.
120      - read pickup written in the old format (until checkpoint59i) if it
121        recognizes an old meta file (no field-list).
122      - add a meta file in exp. which starts from a pickup: 2 cases:
123        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
124         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
125        b) a meta file describing the content of the associated pickup file
126         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
127    o pkg/mdsio & pkg/rw:
128      - new routine to read a meta file ; new set of routine to read
129        Multiple-fields file (with meta file).
130    o added open boundary conditions capability for seaice
131        HSNOW, HSALT, UICE, and VICE
132    
133    checkpoint59i
134    o adjoint:
135      * fix multiDimAdvection adjoint
136        (partial recomputation problem by TAF for fVerT(:,:,kDown)
137        and comlev1 size definition (maxpass vs. max. number of tracers)
138      * verification/global_ocean.90x45x15 adjoint now tests
139        NLFS and multiDimAdvection using DST3 (=30)
140      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
141    o pkg/kpp: add "_d 0" to real constant (if missing);
142      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
143      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
144    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
145      for internal parameters related to restart process (formerly from PARAMS.h)
146      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
147    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
148      as argument. (only atm2d & obcs write_pickup have not yet been updated)
149    o pkg/monitor:
150      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
151      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
152      - account for deep Atmosphere factor and density factor (anelastic)
153    o added open boundary conditions capability for seaice HEFF and AREA
154    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
155      thermodynamics
156      - requires a little reorganization, which affects the testreport results
157        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
158        so that now the conservative form is tested
159      - add a few comments
160    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
161    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
162    o add new diagnostics to seaice: advective, diffusive fluxes (only for
163      multidim-advection, for scheme 2 they are not filled) and transports,
164      thermodynamic growth rates
165    o change units of EmPmR (inside the code, + within coupling interface)
166      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
167      Affects results @ truncation level (cg2d match) and update output of
168       experiments: lab_sea(6), global_ocean.90x40x15(10),
169      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
170      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
171      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
172      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
173    
174    checkpoint59h
175    o pkg/exf:
176      - improve vectorization by moving if-statement out of loops in
177        exf_mapfields, exf_radiation
178      - exf_bulkformulae.F: introduce 2D fields and vectorize code
179    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
180    o testreport:
181      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
182        monitor & update offline_exf_seaice exp. output.
183      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
184    o pkg/seaice:
185      - bug fix in the evp solver: boundary conditions were affected be
186        masking of zMax/zMin (changes results)
187      - minor bug fix in boundary conditions in seaice_calc_strainrates
188        (changes results for no_slip)
189      - seaice_lsr.F: make interpolation of eta dependent on boundaries
190      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
191      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
192        stress formulation and no-slip boundary conditions
193    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
194      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
195    o pkg/seaice: a first HSALT time stepping equation has been checked in
196    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
197      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
198      without requiring DO-IF statements
199    o pkg/thsice:
200      use continuous power-law function for partition of energy between lateral
201      melting/freezing and thinning/thickening ; old code using step function
202      still available with #undef THSICE_FRACEN_POWERLAW
203      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
204    o testreport: change AD testing : check against results/output_adm.txt
205      using same scripts as for forward test.
206    
207    checkpoint59g
208    o adjoint testing: in preparation for changing testreport:
209      - output format: cost and grad written on separated lines
210      - ad output results in directory "results" (instead of "results_ad")
211    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
212    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
213    o pkg/ecco: allow user defined cost function contributions
214    o testreport:
215      Allow to choose (per experiment) the list of tested output variables
216       and the main variable (used to issue a pass/FAIL ) ;
217      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
218      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
219      Also modify printing of summary:
220       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
221       b) echo the list of tested variables in the individual summary.txt of
222          each experiment.
223    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
224      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
225      (but still depend on the tile decompostion of the domain).
226    o pkg/seaice: change a discretization detail to make the B-grid code
227      "more symmetric". This change is likely to remove all "ridges/leads" that
228      where quasi-aligned with the grid in B-grid solutions. It may also be
229      the solution to the stress coupling issues with the B-grid.
230    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
231      remove .cvsignore from input dir. (since testreport no longer run here).
232    o pkg/thsice:
233     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
234     - fix reshaping of sea-ice just after advection:
235       melt all the ice only if ice-volume is too small.
236     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
237       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
238     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
239    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
240      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
241    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
242      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
243      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
244      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
245      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
246      -> update output.txt
247    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
248     this affects truncation error: -> update output.txt of exp:
249      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
250      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
251    
252    checkpoint59f
253    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
254    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
255      a bounded range (in forward mode)
256    o pkg/ecco, ctrl, autodiff and mom_common:
257     internal parameter controls, completements of implementations
258    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
259    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
260      (not seem any difference in testing results).
261    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
262       at face corners.
263    o pkg/generic_advdiff:
264     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
265      loop range indices for computing vertical advection tendency
266      and do the calculation in the interior only (no overlap) ;
267      for now, only implemented for SOM advection (to save CPU time).
268     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
269    o exch2 adjoint
270      First set of changes:
271      - add exch2 hand-written adjoint templates
272      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
273        This will require cleanup in pkg/autodiff/*.F
274        (changed routines currently kept separate in verif. code/)
275      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
276        that used to hide exch2 or cubed-sphere specific code
277        (commented via 'cph-exch2')
278    o pkg/seaice
279      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
280    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
281       output of global_ocean.cs32x15.thsice .
282    
283    checkpoint59e
284    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
285      for B-grid vector (not yet tested) and C-grid vector (<- only used
286      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
287    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
288      (#ifdef ALLOW_SALT_PLUME)
289    o gather_2d/scatter_2d: removed halo regions
290    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
291      scheme and the corresponding test case (under front_relax dir). For now,
292      only available with Skew-flux form and not yet tested in realistic set-up.
293      adjoint: store directives updated, but gradient checks deteriorated,
294      so maybe GM/Redi adjoint is now broken.
295    o seaice adjoint
296      * add AREA, HEFF, HSNOW as control variable
297        (should not change lab_sea results)
298      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
299    o pkg/seaice:
300      * added computation of saltFlux in seaice_growth;
301        For time being, sea ice salinity is assumed constant
302        contribution of snow flooding to freshening of sea ice is neglected.
303        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
304        defaults to 0.0 in order to maintain backward compatibility.
305        Typical values for SEAICE_salinity are 4 to 10 g/kg.
306      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
307      * added SEAICE_availHeatFrac, which specifies fraction of surface level
308        heat content used to melt or grow ice
309      * commented out cap of HICE: it helps keep ice thinner
310      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
311      * applied OBCS T/S mask to HEFFM sea ice mask
312    
313    checkpoint59d
314    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
315     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
316     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
317    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
318     and change default value of parameter "GM_Small_Number";
319     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
320       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
321       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
322    o pkg/ecco: cost function when applying pkg/smooth to controls
323    o pkg/ctrl: add forcingPrecond run time parameter
324    o pkg/seaice:
325     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
326     - fix bug in metric terms of u-equation in LSR solver (implicit part),
327       changes verification/lab_sea
328     - rearrange implicit part of u-equation in LSR solver to make it easier to
329       read, understand, and debug. This causes changes at the truncation level.
330     - fix (serious) bug in the boundary conditions (sign error in the implicit
331       part) of the LSR solver. Changes all LSR results.
332     - fixed problem with HSNOW initialization to avoid thick snow when AREA
333       is initilized with small values - does not change lab_sea results.
334     - added HsnowFile initialization capability
335    o pkg/smooth: addition to model/src and pkg/ctrl so allow
336     initialization of pkg/smooth and application to control vector
337    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
338    o dependencies: pkg/profiles requires pkg/cal
339    o pkg/profiles:
340     - added option ALLOW_PROFILES_GENERICGRID
341         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
342         that interpolation information (grid points and coefficients) is provided
343         within the netcdf input files.
344         -> sample matlab scripts can be found in MITgcm_contrib/gael
345         that allow you to prepare netcdf input files.
346     - also modified: cleaner include statements, cleaner error print statements,
347       cleaner stops when error, and more tests of the netcdf input files consistency.
348    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
349    o pkg/seaice:
350     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
351       requires a new routine: seaice_diagnostics_fill.F
352     - make sure that seaice does not move if not forced (pressure replacement
353       method, Hibler and Ip, 1995), changes results
354     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
355     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
356       It is turned off by default (=-1.), because it changes the results.
357     - make it possible to read AREA from a file, too.
358    
359    checkpoint59c
360    o add S/R and diagnostics for oceanic mixed-layer depth
361    o move GMRedi call after all vertical mixing schemes (including KPP)
362    o pkg/thsice:
363     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
364      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
365    o pkg/obcs:
366     - bug fix for balance code
367    o pkg/seaice:
368      - allow values of SEAICE_elasticParm > 1
369      - add new parameter SEAICE_evpTauRelax as an alternative
370        to SEAICE_elasticParm
371      - make lsr boundary conditions free slip (by default), changes result
372      - add code for no slip boundary conditions for lsr
373      - set minimum of zeta to zero (and not 4e8) (changes results)
374      - add a cap on AREA after advecting AREA if seaice_growth is not called
375    o change calculation of Visbeck K:
376      - no longer depend on tapering scheme; instead, compute slope (limited
377        by GM_maxSlope). this is equivalent to what was comuted before with
378        clipping or linear tappering.
379      - fix vertical averaging (wrong by 1/2 level)
380      - leave the old version (but will not be maintained) within
381        #ifdef OLD_VISBECK_CALC / #endif
382      - update output of exp. ideal_2D_oce
383    o change error catch in calc_r_star to improve vectorization
384    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
385      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
386    o adjoint:
387      Re-organized adjoint checkpointing according to Matt Mazloff
388      (but with modifs/completions/cleanups)
389      Storing is now bundled into large arrays to optimized I/O
390      (and second step in cleanup of the_main_loop)
391    
392    checkpoint59b
393    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
394      - export/import (between ocean & coupler) fields needed for ocean DIC.
395    o pkg/seaice:
396      - get rid of three more exchanges seaice_calc_viscosities (required
397        different loop boundaries in seaice_lsr and seaice_ocean_stress)
398      - bug fix in seaice_ocean_stress (update of lab_sea required)
399      - reduce loop boundaries to necessary minimum also in seaice_evp
400      - go back to the old way of computing deltaC/Z as the adjoint likes that
401        better
402    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
403      passive tracer to an Age Tracer) + update output.txt
404    o pkg/exf:
405      - implement A-grid / C-grid selection for wind-stress input files.
406      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
407      for now, in exf_bulk_largeyeager04.F only :
408      - change implementation for case where windspeed + 2. components wind-stress
409        are read-in. AND use rhoConstFresh to convert evap.
410    o pkg/seaice:
411      - use correct EXCH_UV for wind-forcing (on A-grid).
412      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
413        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
414    o pkg/exf:
415      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
416      EXF_INTERPOLATION:
417      - merge global_with_exf/code version of exf_interp_read.F
418        to the main code ;
419      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
420        reading the file ; Important: This options needs to be defined to recover
421        previous code.
422        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
423      - no longer loose real*8 precision along the way when using exf_iprec=64.
424    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
425      - change discretisation of evp-solver in order to avoid another exchange
426        (changes lab_sea) and clean up a little
427      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
428        help the adjoint (this also changes the results slightly)
429      - add a few "_d 0" where they had been missing in seaice_evp.F
430      - cleaning up: remove unused seaice_calc_rhs.F
431    o pkg/exf: some cleaning-up:
432      - change various "constants" into runtime parameters
433      - cleaned-up Large&Yeager04 routine which should eventually
434        replace exf_bulkformulae.F (changed names of S/R and CPP)
435        and merged various ALLOW_ATM_WIND options
436     only used with thsice pkg (in thsice_get_exf.F):
437      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
438        which are used when useStabilityFct_overIce=TRUE (= the default)
439      - change default values of ice & snow emissivity and scale downward LW
440        by ice & snow emissivity.
441    o pkg/thsice:
442     fix few little problems, in thsice_calc_thickn.F:
443      - growth vertically (and not laterally) if iceFrac == iceMaskMax
444      - melt only laterally if hIce < hThinIce (as the comments say)
445      and in thsice_extend.F:
446      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
447      - start to form ice as soon as the minimum ice-volume is reachable.
448     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
449      and cpl_aim+ocn
450    o pkg/kpp
451     - move computation of surface related input fields to KPP into a new
452       subroutine kpp_forcing_surf.F
453     - remove wrong (within bi,bj loops) EXCH calls.
454     - little cleaning (add argument myThid in last position, cvs header ...)
455     - for now, fix conservation problem by exchanging KPPviscAz (may not
456       be the best fix)
457    o pkg/seaice
458     - check for inconsistent evp parameter/cpp-flag combination
459     - remove leftover errIO flat for obsolete name list error handling
460    o OpenAD
461     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
462    
463    checkpoint59a
464    o pkg/seaice: some parameter clarifications and a little bit of clean up
465    o pkg/thsice: rename run-time parameters:
466       himin       -> hIceMin
467       himin0      -> hThinIce
468       hihig       -> hThickIce
469       i0          -> i0swFrac
470       transCoef   -> bMeltCoef
471       frac_energy -> fracMelting
472      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
473       with default values (for now) that do not change the results.
474      remove old version of thsice vars advection in pkg/seaice.
475    o in FFIELDS.h:
476      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
477      - make pLoad & sIceLoad always available (but still only used if
478         ATMOSPHERIC_LOADING is #define).
479    o pkg/kpp: replaced _KPP_RL with _RL
480    o bug fixes for vertical diffusivity computations when both KPP and
481        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
482        are no longer updating the vertical diffusivity array
483        (passed as argument) but are (re-) setting those arrays.
484    o pkg/seaice: fix bug in evp solver, while doing that
485      - change (improve?) discretization of stress computations for both
486        cgrid-lsr and evp solver
487      - add a new routine to compute strain rates
488      - the above changes lab_sea results
489      - add no slip conditions for evp solver (off by default), lsr-version
490        may follow
491      - fix exchange for shear at Z-points (does not change lab_sea)
492      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
493        (to force the user to pick a time step since there is not "safe" way
494        of choosing it)
495      - add principal stress diagnostics
496      - rearrange fields for evp a little to avoid having to call a: too many
497        exchanges and b: exchanges for stress trensor components which we do
498        not have.
499      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
500        of evp, complete rewrite for lsr case (latter is does not yet work
501        in all cases)
502    o pkg/kpp: add code to have mixing in shelf ice caverns
503      - add myThid to all kpp routines (long overdue)
504    
505    checkpoint59
506    o pkg/exf:
507      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
508        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
509      - move exf header files from lower_case.h to UPPER_CASE.h ;
510        add missing cvs Header & Name
511      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
512      - add namelist param. selectStressGridPosition, exf_monFreq
513      - retire many _CLIM routines, and remove data.exf_clim
514        + params moved to data.exf
515        + climsst, climsss now handled by exf_set_gen, i.e.
516          climss?period=0 refers to constant field,
517          climss?period=-12 to monthly forcing
518      - split up namelists in data.exf
519    o pkg/seaice:
520      - remove seaice_exch and seaice_exch_uv
521      - remove superfluous exchange of theta
522      - add myThid to seaice_budget_ocean/ice
523      - add new interface for atmospheric wind forcing (C-grid only)
524        + new routine
525        + two new field (taux, tauy for stress over ice)
526        + removed one global field (DAIRN) for C-grid case only
527    o pkg/thsise
528      - 2nd set of modifs for thsice adjoint in conjunction with exf
529    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
530    
531    checkpoint58y_post
532    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
533      vertical diffusivity, similar to that in MOM4; turned on using
534      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
535      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
536    o Added capability for 3D specification of background vertical diffusion
537      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
538      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
539      "data" file that contains the 3D vertical diffusivity coefficients.
540    o ice dynamics (pkg/seaice) with thsice thermodynamics:
541      - add code within pkg thsice to advect & diffuse sea-ice fields
542      similar to (and will replace) what has been added in  seaice_advdiff.F,
543      but: - conserving Mass, Heat & Salt.
544           - better when using non-linear advection scheme (not yet fully tested)
545           - can also be used in atmospheric set-up (for now, only the diffusion).
546    
547    checkpoint58x_post
548    o IO option for global-file compact format:
549      - add options when generating topology (utils/exch2/matlab-topology-generator)
550      - add I/O capability (pkg/mdsio).
551      - adapt utils/matlab/rdmds.m to read this format.
552      for now long-line format not yet supported by pkg/mdsio (& exch2).
553    o shelfice: add a few diagnostics
554    
555    checkpoint58w_post
556    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
557      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
558      (and replace horiVertRatio in NH code).
559      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
560                         and tutorial_plume_on_slope (sensitive to truncation)
561    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
562      directly to drive seaice model (C-grid only)
563    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
564     - reintroduce computation of wind from stress,
565     - compute tau (in exf_bulkformulae.F) from windstress averaged to
566       mass points to avoid tau = 0
567     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
568    o rdmnc.m: make it work with "global" files created with gluemnc
569    o rdmnc.m : some improvements in dealing with singleton dimension
570      (tested on all testreport mnc output files).
571    o genmake2: disable pkg/profiles if netcdf test fails.
572    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
573    o move call to cal_readparms up to make calendar parameters/variable available
574      to all packages
575    
576    checkpoint58v_post
577    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
578      useDynP_inEos_Zc tested.
579    o pkg/exf: changes to properly interpolate/mask/scale initial fields
580    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
581      and portions thereof.  See read_cs.txt for description and examples.
582    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
583      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
584      following the great-circle arc between those 2 points.
585    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
586      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
587    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
588     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
589     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
590     - still needs work (not working with some options ; efficiency to improve)
591       and serious testing.
592     - use this scheme for temperature & salinity in 2 advection test exp.:
593       advect_xy & advect_xz, respectively.
594    
595    checkpoint58u_post
596    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
597    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
598    o testreport: add option "-skipdir" to skip some test.
599    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
600      momentum calculation.
601    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
602    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
603      remove checkpoint.F and the_correction_step.F (no longer used);
604      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
605    o add option (linFSConserveTr) to correct for tracer source/sink due to
606      Linear Free surface
607    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
608    o pkg/thsice: fix reading mnc-pickups
609    
610    checkpoint58t_post
611    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
612    o pkg/mdsio:
613     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
614       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
615       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
616     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
617     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
618       either MDS_READ_FIELD or MDS_WRITE_FIELD )
619     - new S/R (to replace MDSWRITEMETA), which allows to write more
620       informations (variable names, time ...) to meta files.
621     - modify rdmds.m to give back the meta file content.
622    o pkg/diagnostics: change vertical interpolation to be safer, and more
623       flexible (define p-levels to interpolate to in data.diagnostics);
624      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
625       diagnostic pointer.
626    o pkg/seaice: more cleaning up of seaice_growth, added many comments
627    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
628    o fix multi-category seaice:
629     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
630       SEAICE_MULTICATEGORY
631     - fix short wave heat flux
632    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
633       and allow to use EVP solver. Change forward lab_sea: test both EVP
634       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
635    o Initial check-in of lab_sea adjoint
636      (very similar to natl_box_adjoint/code_seaice)
637      * used C-grid and EVP solver
638      * used KPP, GM/Redi
639      * uses inAdExact=.TRUE.
640      * gradient checks fail for both ADM and TLM
641        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
642        f.d. gradients actually seem more problematic than ADM, TLM gradients;
643        issue is related to forward mismatch between g77 an ifort
644    o pkg/seaice: overhaul of thermodynamics
645     - growth.F and groatb.F are replaced by new routine seaice_growth.F
646     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
647     - move a few global fields out of SEAICE.h into seaice_growth.F and
648       make them 2D (FICE/QNETO/ ...)
649     - remove FO (it is the same as QNETO)
650     - introduce a few local fields to avoid modifying external fields such
651       as atemp, etc.
652    
653    checkpoint58s_post
654    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
655      changed exf_set_gen.F so that
656        genperiod=0 means input file is one time-constant field and
657        genperiod=-12 means input file contains 12 monthly means
658    o CG2D: use pre-computed solver main-diagonal (stored in common block);
659      this affects truncation error ; generate new output file for exp. which
660      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
661        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
662        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
663        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
664        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
665        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
666    o start implementation of deep-atmosphere and anelastic formulation
667    o verification: remove 2nd copy of input files and use script "prepare_run"
668      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
669    o mom_common/vecinv/fluxform: fix a few initialisation isssues
670    o profiles: fix for multithreaded case
671    
672    o diagnostics: rename few diags:
673      s/'PRESSURE'/'RCENTER '/g
674      s/'TICE    '/'oceFreez'/g
675      s/'TAUX    '/'oceTAUX '/g
676      s/'TAUY    '/'oceTAUY '/g
677      s/'SWFLUX  '/'oceQsw  '/g
678      s/DIFx/DFxE/g
679      s/DIFy/DFyE/g
680      and add few ocean-forcing diagnostics:
681      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
682    o modifications to pkg/seaice/growth.F and budget.F, which change results of
683      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
684      as actual snow thickness.  It now refers everywhere to effective snow
685      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
686    
687    checkpoint58r_post
688    o modifications to pkg/seaice/growth.F, which change results of
689      lab_sea experiment: fixes pertain to melting snow over open water, to
690      masking EVAP under sea ice, and to using the correct AREA variable for
691      computations of EVAP, PRECIP, HSNOW, and GHEFF
692    o add ability to read bathy, salt, and theta using MNC (off by def)
693    o add flooding algorithm and advection of HSNOW for pkg/seaice;
694      both are turned off by default and do no change any results
695    o seaice advection with pkg/thsice: a step toward the use of non-linear
696      advection scheme, but #ifdef or commented out for now (requires more EXCH).
697    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
698      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
699      in natl_box (affects results @ truncation level: update output.txt)
700    o multi-threading and IO:
701      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
702      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
703        (needed to work with SingleCpuIO): tested in all verif. exp.
704    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
705      affects the results (but none of the verification test uses this scheme).
706    o Adding some pkg/diagnostics capability to pkg/seaice
707      (will certainly be subject to changes)
708    o ctrl: adding new control variables:
709      lwflux, lwdown, evap, snowprecip, apressure, runoff
710    
711    checkpoint58q_post
712    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
713      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
714      high_res_cube configuration by 4% on Columbia.
715    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
716      add (in global_with_exf/code) a version of EXF_INTERP_READ without
717      dynamical allocation (seems to work in multi-threaded).
718    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
719      single CPU io) so that TAF does not have to see EESUPPORT.h
720    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
721    
722    checkpoint58p_post
723    o obcs: stop if obcs is used with useCDscheme = .true.
724    o shelfice:
725     - fix a sign error so that no slip at shelfice interface works
726     - remove stop for combination non-hydrostatic code and shelfice. That does
727       not mean, that the results are correct, but at least they are numerically
728       stable
729    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
730    o added adjoint exch routined for all exch*3d* routines
731      and updated flow directives
732    
733    checkpoint58o_post
734    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
735      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
736    o change controling S/R for writing pickup file (new S/R do_write_pickup)
737      and clean-up reading/writing of pickup files.
738    o fix local version of read/write pickup (NH part) in rotating_tank/code
739    o simplify EXCH interface:
740     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
741     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
742    o added the regrid package
743    o shelfice:
744     - add a simple boundary layer scheme to reduce noise
745     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
746    
747    checkpoint58n_post
748    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
749       local variable (not in common block).
750    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
751      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
752      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
753        to work with SingleCpuIO.
754    o add "_d 0" to real constant of pkg/cfc subroutines ;
755       update exp. cfc_exemple & tutorial_cfc_offline output files.
756    o multi-threading and IO:
757      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
758        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
759      - barrier before and after reading.
760      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
761      - avoid using MDS_WRITELOCAL for LAND pkg output.
762      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
763        common-block variables ; Allows multi-threading with master-thread IO.
764    o change default MAX_NO_THREADS from 32 to 4 ;
765      and stop cleanly when MAX_NO_THREADS is too small.
766    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
767    
768    checkpoint58m_post
769    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
770       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
771    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
772       keep global_ocean.90x40x15 (for AD testing) with former secondary test
773       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
774    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
775        add MITgcm_tutorials (= code + all the tutorials)
776    o ecco, option to compute cost for total ssh (mean+anom)
777    o consistent with addition of ptracer and ssh in pkg/profiles
778    o profiles: adding ptracer and ssh
779    o testreport: change multi-test output-file name
780      (from output.txt.{name} to output.{name}.txt)
781    o profiles: now ok for mutli-tiles case
782    o seaice: add 4 parameters for different advection schemes for area,
783      (effective) seaice thickness, enthalphy, and snow height. Their default
784      is the standard parameter SEAICEadvScheme
785    o calc_gw:
786     - add cosFacU in zonal viscous flux (harmonic.visc.).
787     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
788       of tutorial_plume_on_slope.
789    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
790    o calc_gw: true flux-form, account for horizontal grid spacing.
791      update rotating_tank results, but not plume_on_slope (affected at
792      truncation level, 11 digits).
793    
794    checkpoint58l_post
795    o calc_gw:
796     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
797     - remove side-drag for now (need to fix it); update plume_on_slope results.
798     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
799    o commit code to make SST/SSS weights spatially variable
800      (based on either variable in-situ or variable initial T/S weights)
801    o pkg/ecco:
802      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
803        now based on horizontally varying weights wthetaLev, wsaltLev
804      * cost_averagesflags now returns year indices in addition to day, month
805      * sflux balance is performed on annual basis
806        (sflxumm, sfluxmm2, bal_sfluxmm)
807      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
808        including separate counting and multipliers
809    o pkg/rbcs
810      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
811    
812    checkpoint58k_post
813    o testreport:
814     - always build in dir. "build" (if not there, mkdir build instead of building
815       & running in input)
816     - run in dir run (if it exists), in build otherwise.
817     - call prepare_run (if input/prepare_run exists)
818     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
819    o pkg/exf modifications to interpolation and rotation routines for more
820       reasonable treatment of North Pole singularity: for tracers North Pole
821       value is set to northernmost zonal-mean value, for zonal velocity it is
822       set to zero, and for meridional velocity it is set to northernmost value.
823    o pkg/exf/exf_check_range.F
824     - add tile index to diagnostics and move stop statement to the very
825       end of the routine.
826    o pkg/diagnostics: (diagnostics_main_init.F)
827      define title of isomorphic variables according to the current config.
828    o pkg/thsice with pkg/seaice dynamics:
829    - fix domain of computation (interior only, required for exf) and do exchanges
830    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
831    o towards a standard way of dealing with multi-threading in MONITOR
832      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
833    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
834       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
835    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
836    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
837    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
838       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
839    o tracer advection:
840     - clean-up and simplify calc_common_factors.F
841     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
842       advection subroutine (but still not used within DST advection S/R)
843    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
844    
845    checkpoint58j_post
846    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
847      from file (collects calls previously in FORWARD_STEP)
848    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
849    o adjoint store dir. adjusted accordingly
850    o genmake2
851      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
852    
853    checkpoint58i_post
854    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
855      on wind stress (SEAICEstressFactor defaults to 1.)
856    o Total number of Timers is finite (<=40): comment out 2 non-essential one
857      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
858    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
859      on CS-grid: no longer loosing mass.
860    o exf & curvilinear-grid: no longer modify longitude xC & xG.
861    o pkg/ggl90: fix sloppy output and fix a bug
862    o pkg/seaice: added SEAICEuseEVPpickup parameter
863      - Set to false in order to start EVP solver with
864        non-EVP pickup files when using SEAICEuseEVP
865      - fix sign error in diffusion in seaice_calc_rhs
866    
867    checkpoint58h_post
868    * Modifications for bottom topography control
869      o replace hFacC by _hFacC at various places
870      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
871      o add non-self-adjoint cg2d_nsa
872      o update autodiff support routines
873      o re-initialise hfac after ctrl_depth_ini
874      o works for 5x5 box, doesnt work for global_ocean.90x40x15
875    * Adding verification for 5x5 box (4-layer) bottom topography control
876    
877    checkpoint58g_post
878    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
879       used for mean seasonal cycle, mean diurnal cycle); add an example
880       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
881    o pkg/ggl90:
882      - add parameter (minimum surface kinetic energy)
883      - fix bug (avoiding division by zero)
884    o couple pkg/thsice to pkg/seaice:
885      - modify advection in seaice to accomodate new scalar fields to be advected
886      - only muliDimAdection scheme work with seaice/thsice
887      - mapping of thsice-variables to seaice-variables, back and forth
888      - does not break the verification experiments, but does not give the
889        desired results either
890    o pkg/seaice
891      - make (default) second order advection a bit less confusing?
892    
893    checkpoint58f_post
894    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
895      to pkg/seaice):
896      - new routines thsice_map_exf and thsice_get_exf provide the interface
897      - add an additional formal parameter to thsice_solve4temp
898    o pkg/exf:
899      - add new fields wspeed, snowprecip (to be able to couple to thsice)
900      - correct Stefan-Boltzmann constant
901      - new parameter for longwave surface emittance
902      - separate some stuff from exf_bulkformulae into new routines  
903        exf_radiation, exf_wind
904      - add new parameters and constants: longwave emissivity for ocean, ice
905        and snow, evaporation parameters over ice
906      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
907        either wind from stress or stress from wind
908    o pkg/thSIce:
909    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
910    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
911       and THSICE_CALC_THICKN
912    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
913    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
914      to make debugging easier.
915    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
916    o pkg/bulk_force:
917      - clean-up comments and parameters ;
918      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
919    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
920      generate new output for test-experiment: aim.5l_cs.thSI
921    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
922      testreport accordingly
923    
924    checkpoint58e_post
925    o SEAICE_CGRID adjoint done
926    o R_STAR adjoint implemented.
927      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
928      * need to sort out init. of h0facc, etc.
929    o Make pkg/profile fully independent of ecco,cost, etc. stuff
930      to be able to use it in pure forward.
931    
932    checkpoint58d_post
933    o upgrade simple test-experiment to tutorial example:
934     step.1: duplicate the experiment and (step.2) will remove the old copy.
935      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
936      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
937      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
938      tutorial_global_oce_biogeo    <- copy of dic_example
939      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
940      tutorial_plume_on_slope       <- copy of plume_on_slope
941      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
942      tutorial_global_oce_optim     <- empty for now (David ?)
943      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
944     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
945    o correct a sign problem in cost_scat.F
946    o obcs and ptracers: fix boundary conditions for advections schemes
947      with larger stencil
948    o thsice adjoint: start
949    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
950      completeness
951    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
952      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
953    o ptracers adjoint:
954      * avoid extensive recomputatations
955      * fix missing re-init. of gptr (missed by TAF)
956    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
957      me to turn off the excessive output to STDOUT that this package produces
958    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
959      and add those terms in Vector-Invariant formulation.
960    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
961      if the control period (xx_hfluxperiod etc) is 0
962    o in profiles pkg, clean routines and fix details
963    o in ecco pkg, reading ssh data:
964      fix problem in case the model does not start at iter0=0
965    o fix mnc-pickup/restart for ptracers
966    o new package prifiles:
967      code to compute profile-based cost by Gael Forget
968      (modifs in ecco, ctrl, autodiff)
969    o Benign bug fix in initialization (spotted by M. Mazloff) of
970      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
971    
972    checkpoint58c_post
973    o adjoint: finish NLFS adjoint and provide reference output in
974      verification/global_ocean.90x40x15/results_ad_nlfs
975  o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the  o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
976    documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in    documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
977    SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only    SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only

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