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revision 1.763 by mlosch, Tue Jan 9 13:36:19 2007 UTC revision 1.956 by jmc, Tue Feb 12 23:18:18 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 generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
8      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
9      - modify verification advect_cs test to test SOM-advection on CS-grid.
10    o pkg/ctrl:
11      - Rewrite of ctrl_map_ini_ecco.F,
12        introducing a generic routine (ctrl_map_ini_gen.F).
13      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
14    
15    checkpoint59n
16    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
17      number in dedicate array "hdiag":
18      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
19        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
20      - many small changes (integer format) for large number of diagnostics
21      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
22        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
23    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
24      usingSphericalGrid, this allows to define the rotated grid coordinates
25      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
26      geographical coordinates according to the inverse of the rotation defined
27      by the Euler angles, so that Coriolis parameter and online-interpolation by
28      exf works with the geographical coordinates on XC/YC/XG/YG.
29      Naturally, this feature does not work with all packages, so some
30      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
31      profiles), because there the coordinates are assumed to be regular
32      spherical grid coordinates.
33    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
34      - introduce isopycnal diffusion coefficient control.
35    o tools/adjoint_options:
36      - additional control vector components.
37    o pkg/mnc: have mnc create marginally meaning full coordinate variables
38      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
39    o pkg/mypackage:
40      - add example of read/write pickup for state-var ;
41      - add entry points to the main code for state-vars diags & write-pickup.
42    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
43      transitions for useExfYearlyFields
44      - add new subroutine that determines the file to read from for
45        use*YearlyFields = .TRUE. and .FALSE.
46      - add a verification experiment to global_with_exf that tests
47        useExfYearlyFields with USE_EXF_INTERPOLATION defined
48    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
49      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
50      subroutines (which could be generated from a template, because they are
51      almost identical), for now they are included in obcs_prescribe_read.F for
52      simplicity
53    o pkg/exf:
54      - add a little more diagnostic to exf_interp_read (in analogy to
55        mds_read_field, can be turned off with debugLevel < debugLevA=1)
56      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
57        ugly but fast by unrolling short inner loops, inserting a unroll=8
58        directive in routine lagran, and splitting a loop and making do while the
59        outermost loop (the latter requires the intoduction of index arrays)
60    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
61    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
62      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
63    o verification/seaice_obcs: updated for restart test and latest options
64    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
65      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
66      for now this is only available for the C-grid code and also within
67      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
68    
69    checkpoint59m
70    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
71      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
72    o gad_som : fix flux output (& diagnostics) to have same units as other  
73      advection scheme fluxes (was previously multiplied by deltaT).  
74    o added verification/seaice_obcs both to test seaice open boundaries
75      and to provide an example matlab scrpt for generating them
76    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
77    o pkg/salt_plume: clean up salt_plume_frac.F to
78      remove redundancy in PlumeMethod 1 and 4
79    o pkg/kpp: added saltplume diagnostics
80    o pkg/obcs and pkg/seaice:
81      - do not set uice and vice to zero when OB*icefile are unspecified
82      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
83      - moved seaice tracer obcs after call to seaice_growth
84    o pkg/salt_plume: added various options for salt plume depth
85      criterion and for vertical distribution of the salt
86    
87    checkpoint59l
88    o pkg/ptracers: new version of ptracers pickup:
89      read meta file and write only fields which are needed to restart.
90      ( same logic as main pickup file ; also using pickupStrictlyMatch )
91    o pkg/seaice:
92      - add timescale for melting due to warm mixed layer as a means of
93        setting SEAICE_availHeatFrac more conveniently
94      - add a CPP-flag/runtime parameter check for flooding algorithm
95      - reformulated availHeat in seaice_growth.F to be independent of AREA
96    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
97      unit changes
98    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
99    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
100      SX vector computer.
101    o pkg/seaice:
102      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
103        seaice forcing fields can now be read only through pkg/exf
104      - removed some unused halos
105    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
106    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
107      or U/VICE from U/VWIND before computing U/VSTRESS
108    
109    checkpoint59k
110    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
111      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
112    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
113      all experiments pass when compile with un-initialised var. checking option.
114    o added pkg/salt_plume
115    o script to test restart (for now, in MITgcm_contrib/jmc_script)
116    o pkg/seaice: new read/write pickup version.
117      read meta file and write only fields which are needed to restart.
118      ( same logic as main pickup file ; also using pickupStrictlyMatch )
119    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
120    o lab_sea.hb87: modify the domain & update output.hb87.txt :
121      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
122      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
123      process. Fixed here by closing the domain at the Northern boundary.
124    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
125    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
126      a set of consecutive levels in/from a 3-D array.
127    o pkg/ptracers:
128      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
129      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
130    
131    checkpoint59j
132    o in pkgs: dic, obcs, offline, rbcs:
133      standard way to compute coeff. for time interpolation between 2 time reccords
134      which retains full precision (& make results less dependent on compiler).
135      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
136    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
137      packages instead of reading ice cover and wind speed separately
138    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
139     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
140      to allow to compile customized code before the update)
141    o cleaning-up:
142      - fix CPP instruction syntax in pkg/obcs
143      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
144        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
145      - fix some threads issue in IO parts.
146    o pkg/dic:
147      - add tons of "_d 0" (--> much better testreports !)
148       and then update outputs of tutorial_global_oce_biogeo
149    o pkg/mom_fluxform:
150      add a special version of momentum advection intended to conserve momentum
151      next to a bathymetry step or a coastline edge. (default = off = #undef)
152    o new read/write pickup version:
153      - for now, only implemented for main (mdsio) pickup file.
154      - write out only what is needed to restart; merge pickup_nh , pickup_ph
155        and main pickup together.
156      - read meta file; read only what is needed to restart; stop if a field
157        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
158        if it make sense (even if the restart is not perfect).
159      - if no meta file, assume that pickup to read corresponds exactly to
160        a pickup that would currently be written.
161      - read pickup written in the old format (until checkpoint59i) if it
162        recognizes an old meta file (no field-list).
163      - add a meta file in exp. which starts from a pickup: 2 cases:
164        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
165         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
166        b) a meta file describing the content of the associated pickup file
167         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
168    o pkg/mdsio & pkg/rw:
169      - new routine to read a meta file ; new set of routine to read
170        Multiple-fields file (with meta file).
171    o added open boundary conditions capability for seaice
172        HSNOW, HSALT, UICE, and VICE
173    
174    checkpoint59i
175    o adjoint:
176      * fix multiDimAdvection adjoint
177        (partial recomputation problem by TAF for fVerT(:,:,kDown)
178        and comlev1 size definition (maxpass vs. max. number of tracers)
179      * verification/global_ocean.90x45x15 adjoint now tests
180        NLFS and multiDimAdvection using DST3 (=30)
181      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
182    o pkg/kpp: add "_d 0" to real constant (if missing);
183      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
184      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
185    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
186      for internal parameters related to restart process (formerly from PARAMS.h)
187      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
188    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
189      as argument. (only atm2d & obcs write_pickup have not yet been updated)
190    o pkg/monitor:
191      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
192      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
193      - account for deep Atmosphere factor and density factor (anelastic)
194    o added open boundary conditions capability for seaice HEFF and AREA
195    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
196      thermodynamics
197      - requires a little reorganization, which affects the testreport results
198        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
199        so that now the conservative form is tested
200      - add a few comments
201    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
202    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
203    o add new diagnostics to seaice: advective, diffusive fluxes (only for
204      multidim-advection, for scheme 2 they are not filled) and transports,
205      thermodynamic growth rates
206    o change units of EmPmR (inside the code, + within coupling interface)
207      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
208      Affects results @ truncation level (cg2d match) and update output of
209       experiments: lab_sea(6), global_ocean.90x40x15(10),
210      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
211      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
212      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
213      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
214    
215    checkpoint59h
216    o pkg/exf:
217      - improve vectorization by moving if-statement out of loops in
218        exf_mapfields, exf_radiation
219      - exf_bulkformulae.F: introduce 2D fields and vectorize code
220    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
221    o testreport:
222      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
223        monitor & update offline_exf_seaice exp. output.
224      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
225    o pkg/seaice:
226      - bug fix in the evp solver: boundary conditions were affected be
227        masking of zMax/zMin (changes results)
228      - minor bug fix in boundary conditions in seaice_calc_strainrates
229        (changes results for no_slip)
230      - seaice_lsr.F: make interpolation of eta dependent on boundaries
231      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
232      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
233        stress formulation and no-slip boundary conditions
234    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
235      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
236    o pkg/seaice: a first HSALT time stepping equation has been checked in
237    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
238      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
239      without requiring DO-IF statements
240    o pkg/thsice:
241      use continuous power-law function for partition of energy between lateral
242      melting/freezing and thinning/thickening ; old code using step function
243      still available with #undef THSICE_FRACEN_POWERLAW
244      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
245    o testreport: change AD testing : check against results/output_adm.txt
246      using same scripts as for forward test.
247    
248    checkpoint59g
249    o adjoint testing: in preparation for changing testreport:
250      - output format: cost and grad written on separated lines
251      - ad output results in directory "results" (instead of "results_ad")
252    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
253    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
254    o pkg/ecco: allow user defined cost function contributions
255    o testreport:
256      Allow to choose (per experiment) the list of tested output variables
257       and the main variable (used to issue a pass/FAIL ) ;
258      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
259      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
260      Also modify printing of summary:
261       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
262       b) echo the list of tested variables in the individual summary.txt of
263          each experiment.
264    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
265      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
266      (but still depend on the tile decompostion of the domain).
267    o pkg/seaice: change a discretization detail to make the B-grid code
268      "more symmetric". This change is likely to remove all "ridges/leads" that
269      where quasi-aligned with the grid in B-grid solutions. It may also be
270      the solution to the stress coupling issues with the B-grid.
271    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
272      remove .cvsignore from input dir. (since testreport no longer run here).
273    o pkg/thsice:
274     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
275     - fix reshaping of sea-ice just after advection:
276       melt all the ice only if ice-volume is too small.
277     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
278       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
279     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
280    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
281      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
282    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
283      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
284      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
285      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
286      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
287      -> update output.txt
288    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
289     this affects truncation error: -> update output.txt of exp:
290      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
291      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
292    
293    checkpoint59f
294    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
295    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
296      a bounded range (in forward mode)
297    o pkg/ecco, ctrl, autodiff and mom_common:
298     internal parameter controls, completements of implementations
299    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
300    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
301      (not seem any difference in testing results).
302    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
303       at face corners.
304    o pkg/generic_advdiff:
305     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
306      loop range indices for computing vertical advection tendency
307      and do the calculation in the interior only (no overlap) ;
308      for now, only implemented for SOM advection (to save CPU time).
309     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
310    o exch2 adjoint
311      First set of changes:
312      - add exch2 hand-written adjoint templates
313      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
314        This will require cleanup in pkg/autodiff/*.F
315        (changed routines currently kept separate in verif. code/)
316      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
317        that used to hide exch2 or cubed-sphere specific code
318        (commented via 'cph-exch2')
319    o pkg/seaice
320      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
321    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
322       output of global_ocean.cs32x15.thsice .
323    
324    checkpoint59e
325    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
326      for B-grid vector (not yet tested) and C-grid vector (<- only used
327      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
328    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
329      (#ifdef ALLOW_SALT_PLUME)
330    o gather_2d/scatter_2d: removed halo regions
331    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
332      scheme and the corresponding test case (under front_relax dir). For now,
333      only available with Skew-flux form and not yet tested in realistic set-up.
334      adjoint: store directives updated, but gradient checks deteriorated,
335      so maybe GM/Redi adjoint is now broken.
336    o seaice adjoint
337      * add AREA, HEFF, HSNOW as control variable
338        (should not change lab_sea results)
339      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
340    o pkg/seaice:
341      * added computation of saltFlux in seaice_growth;
342        For time being, sea ice salinity is assumed constant
343        contribution of snow flooding to freshening of sea ice is neglected.
344        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
345        defaults to 0.0 in order to maintain backward compatibility.
346        Typical values for SEAICE_salinity are 4 to 10 g/kg.
347      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
348      * added SEAICE_availHeatFrac, which specifies fraction of surface level
349        heat content used to melt or grow ice
350      * commented out cap of HICE: it helps keep ice thinner
351      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
352      * applied OBCS T/S mask to HEFFM sea ice mask
353    
354    checkpoint59d
355    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
356     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
357     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
358    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
359     and change default value of parameter "GM_Small_Number";
360     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
361       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
362       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
363    o pkg/ecco: cost function when applying pkg/smooth to controls
364    o pkg/ctrl: add forcingPrecond run time parameter
365    o pkg/seaice:
366     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
367     - fix bug in metric terms of u-equation in LSR solver (implicit part),
368       changes verification/lab_sea
369     - rearrange implicit part of u-equation in LSR solver to make it easier to
370       read, understand, and debug. This causes changes at the truncation level.
371     - fix (serious) bug in the boundary conditions (sign error in the implicit
372       part) of the LSR solver. Changes all LSR results.
373     - fixed problem with HSNOW initialization to avoid thick snow when AREA
374       is initilized with small values - does not change lab_sea results.
375     - added HsnowFile initialization capability
376    o pkg/smooth: addition to model/src and pkg/ctrl so allow
377     initialization of pkg/smooth and application to control vector
378    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
379    o dependencies: pkg/profiles requires pkg/cal
380    o pkg/profiles:
381     - added option ALLOW_PROFILES_GENERICGRID
382         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
383         that interpolation information (grid points and coefficients) is provided
384         within the netcdf input files.
385         -> sample matlab scripts can be found in MITgcm_contrib/gael
386         that allow you to prepare netcdf input files.
387     - also modified: cleaner include statements, cleaner error print statements,
388       cleaner stops when error, and more tests of the netcdf input files consistency.
389    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
390    o pkg/seaice:
391     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
392       requires a new routine: seaice_diagnostics_fill.F
393     - make sure that seaice does not move if not forced (pressure replacement
394       method, Hibler and Ip, 1995), changes results
395     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
396     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
397       It is turned off by default (=-1.), because it changes the results.
398     - make it possible to read AREA from a file, too.
399    
400    checkpoint59c
401    o add S/R and diagnostics for oceanic mixed-layer depth
402    o move GMRedi call after all vertical mixing schemes (including KPP)
403    o pkg/thsice:
404     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
405      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
406    o pkg/obcs:
407     - bug fix for balance code
408    o pkg/seaice:
409      - allow values of SEAICE_elasticParm > 1
410      - add new parameter SEAICE_evpTauRelax as an alternative
411        to SEAICE_elasticParm
412      - make lsr boundary conditions free slip (by default), changes result
413      - add code for no slip boundary conditions for lsr
414      - set minimum of zeta to zero (and not 4e8) (changes results)
415      - add a cap on AREA after advecting AREA if seaice_growth is not called
416    o change calculation of Visbeck K:
417      - no longer depend on tapering scheme; instead, compute slope (limited
418        by GM_maxSlope). this is equivalent to what was comuted before with
419        clipping or linear tappering.
420      - fix vertical averaging (wrong by 1/2 level)
421      - leave the old version (but will not be maintained) within
422        #ifdef OLD_VISBECK_CALC / #endif
423      - update output of exp. ideal_2D_oce
424    o change error catch in calc_r_star to improve vectorization
425    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
426      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
427    o adjoint:
428      Re-organized adjoint checkpointing according to Matt Mazloff
429      (but with modifs/completions/cleanups)
430      Storing is now bundled into large arrays to optimized I/O
431      (and second step in cleanup of the_main_loop)
432    
433    checkpoint59b
434    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
435      - export/import (between ocean & coupler) fields needed for ocean DIC.
436    o pkg/seaice:
437      - get rid of three more exchanges seaice_calc_viscosities (required
438        different loop boundaries in seaice_lsr and seaice_ocean_stress)
439      - bug fix in seaice_ocean_stress (update of lab_sea required)
440      - reduce loop boundaries to necessary minimum also in seaice_evp
441      - go back to the old way of computing deltaC/Z as the adjoint likes that
442        better
443    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
444      passive tracer to an Age Tracer) + update output.txt
445    o pkg/exf:
446      - implement A-grid / C-grid selection for wind-stress input files.
447      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
448      for now, in exf_bulk_largeyeager04.F only :
449      - change implementation for case where windspeed + 2. components wind-stress
450        are read-in. AND use rhoConstFresh to convert evap.
451    o pkg/seaice:
452      - use correct EXCH_UV for wind-forcing (on A-grid).
453      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
454        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
455    o pkg/exf:
456      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
457      EXF_INTERPOLATION:
458      - merge global_with_exf/code version of exf_interp_read.F
459        to the main code ;
460      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
461        reading the file ; Important: This options needs to be defined to recover
462        previous code.
463        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
464      - no longer loose real*8 precision along the way when using exf_iprec=64.
465    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
466      - change discretisation of evp-solver in order to avoid another exchange
467        (changes lab_sea) and clean up a little
468      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
469        help the adjoint (this also changes the results slightly)
470      - add a few "_d 0" where they had been missing in seaice_evp.F
471      - cleaning up: remove unused seaice_calc_rhs.F
472    o pkg/exf: some cleaning-up:
473      - change various "constants" into runtime parameters
474      - cleaned-up Large&Yeager04 routine which should eventually
475        replace exf_bulkformulae.F (changed names of S/R and CPP)
476        and merged various ALLOW_ATM_WIND options
477     only used with thsice pkg (in thsice_get_exf.F):
478      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
479        which are used when useStabilityFct_overIce=TRUE (= the default)
480      - change default values of ice & snow emissivity and scale downward LW
481        by ice & snow emissivity.
482    o pkg/thsice:
483     fix few little problems, in thsice_calc_thickn.F:
484      - growth vertically (and not laterally) if iceFrac == iceMaskMax
485      - melt only laterally if hIce < hThinIce (as the comments say)
486      and in thsice_extend.F:
487      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
488      - start to form ice as soon as the minimum ice-volume is reachable.
489     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
490      and cpl_aim+ocn
491    o pkg/kpp
492     - move computation of surface related input fields to KPP into a new
493       subroutine kpp_forcing_surf.F
494     - remove wrong (within bi,bj loops) EXCH calls.
495     - little cleaning (add argument myThid in last position, cvs header ...)
496     - for now, fix conservation problem by exchanging KPPviscAz (may not
497       be the best fix)
498    o pkg/seaice
499     - check for inconsistent evp parameter/cpp-flag combination
500     - remove leftover errIO flat for obsolete name list error handling
501    o OpenAD
502     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
503    
504    checkpoint59a
505    o pkg/seaice: some parameter clarifications and a little bit of clean up
506    o pkg/thsice: rename run-time parameters:
507       himin       -> hIceMin
508       himin0      -> hThinIce
509       hihig       -> hThickIce
510       i0          -> i0swFrac
511       transCoef   -> bMeltCoef
512       frac_energy -> fracMelting
513      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
514       with default values (for now) that do not change the results.
515      remove old version of thsice vars advection in pkg/seaice.
516    o in FFIELDS.h:
517      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
518      - make pLoad & sIceLoad always available (but still only used if
519         ATMOSPHERIC_LOADING is #define).
520    o pkg/kpp: replaced _KPP_RL with _RL
521    o bug fixes for vertical diffusivity computations when both KPP and
522        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
523        are no longer updating the vertical diffusivity array
524        (passed as argument) but are (re-) setting those arrays.
525    o pkg/seaice: fix bug in evp solver, while doing that
526      - change (improve?) discretization of stress computations for both
527        cgrid-lsr and evp solver
528      - add a new routine to compute strain rates
529      - the above changes lab_sea results
530      - add no slip conditions for evp solver (off by default), lsr-version
531        may follow
532      - fix exchange for shear at Z-points (does not change lab_sea)
533      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
534        (to force the user to pick a time step since there is not "safe" way
535        of choosing it)
536      - add principal stress diagnostics
537      - rearrange fields for evp a little to avoid having to call a: too many
538        exchanges and b: exchanges for stress trensor components which we do
539        not have.
540      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
541        of evp, complete rewrite for lsr case (latter is does not yet work
542        in all cases)
543    o pkg/kpp: add code to have mixing in shelf ice caverns
544      - add myThid to all kpp routines (long overdue)
545    
546    checkpoint59
547    o pkg/exf:
548      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
549        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
550      - move exf header files from lower_case.h to UPPER_CASE.h ;
551        add missing cvs Header & Name
552      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
553      - add namelist param. selectStressGridPosition, exf_monFreq
554      - retire many _CLIM routines, and remove data.exf_clim
555        + params moved to data.exf
556        + climsst, climsss now handled by exf_set_gen, i.e.
557          climss?period=0 refers to constant field,
558          climss?period=-12 to monthly forcing
559      - split up namelists in data.exf
560    o pkg/seaice:
561      - remove seaice_exch and seaice_exch_uv
562      - remove superfluous exchange of theta
563      - add myThid to seaice_budget_ocean/ice
564      - add new interface for atmospheric wind forcing (C-grid only)
565        + new routine
566        + two new field (taux, tauy for stress over ice)
567        + removed one global field (DAIRN) for C-grid case only
568    o pkg/thsise
569      - 2nd set of modifs for thsice adjoint in conjunction with exf
570    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
571    
572    checkpoint58y_post
573    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
574      vertical diffusivity, similar to that in MOM4; turned on using
575      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
576      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
577    o Added capability for 3D specification of background vertical diffusion
578      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
579      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
580      "data" file that contains the 3D vertical diffusivity coefficients.
581    o ice dynamics (pkg/seaice) with thsice thermodynamics:
582      - add code within pkg thsice to advect & diffuse sea-ice fields
583      similar to (and will replace) what has been added in  seaice_advdiff.F,
584      but: - conserving Mass, Heat & Salt.
585           - better when using non-linear advection scheme (not yet fully tested)
586           - can also be used in atmospheric set-up (for now, only the diffusion).
587    
588    checkpoint58x_post
589    o IO option for global-file compact format:
590      - add options when generating topology (utils/exch2/matlab-topology-generator)
591      - add I/O capability (pkg/mdsio).
592      - adapt utils/matlab/rdmds.m to read this format.
593      for now long-line format not yet supported by pkg/mdsio (& exch2).
594    o shelfice: add a few diagnostics
595    
596    checkpoint58w_post
597    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
598      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
599      (and replace horiVertRatio in NH code).
600      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
601                         and tutorial_plume_on_slope (sensitive to truncation)
602    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
603      directly to drive seaice model (C-grid only)
604    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
605     - reintroduce computation of wind from stress,
606     - compute tau (in exf_bulkformulae.F) from windstress averaged to
607       mass points to avoid tau = 0
608     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
609    o rdmnc.m: make it work with "global" files created with gluemnc
610    o rdmnc.m : some improvements in dealing with singleton dimension
611      (tested on all testreport mnc output files).
612    o genmake2: disable pkg/profiles if netcdf test fails.
613    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
614    o move call to cal_readparms up to make calendar parameters/variable available
615      to all packages
616    
617    checkpoint58v_post
618    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
619      useDynP_inEos_Zc tested.
620    o pkg/exf: changes to properly interpolate/mask/scale initial fields
621    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
622      and portions thereof.  See read_cs.txt for description and examples.
623    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
624      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
625      following the great-circle arc between those 2 points.
626    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
627      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
628    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
629     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
630     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
631     - still needs work (not working with some options ; efficiency to improve)
632       and serious testing.
633     - use this scheme for temperature & salinity in 2 advection test exp.:
634       advect_xy & advect_xz, respectively.
635    
636    checkpoint58u_post
637    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
638    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
639    o testreport: add option "-skipdir" to skip some test.
640    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
641      momentum calculation.
642    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
643    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
644      remove checkpoint.F and the_correction_step.F (no longer used);
645      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
646    o add option (linFSConserveTr) to correct for tracer source/sink due to
647      Linear Free surface
648  o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine  o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
649  o pkg/thsice: fix reading mnc-pickups  o pkg/thsice: fix reading mnc-pickups
650    

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