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revision 1.808 by jmc, Thu May 3 22:57:27 2007 UTC revision 1.967 by jmc, Mon Mar 24 00:33:31 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 in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
8      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
9      also fix diagnostics VISCAHW & VISCA4W.
10    
11    checkpoint59o
12    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
13    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
14      move a few statemens out the main loop into separate loops
15    o pkg/shelfice:
16      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
17        (kg/m^2/s), does not break tests, because in verification/isomip,
18        rhoConstFresh=rhoConst (by accident)
19      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
20      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
21        new file model/src/seawater.F, so that they are available for all pkgs.
22      - convert potential temperature into in-situ temperature. This changes the
23        isomip tests => update tests
24    o add a flag writePickupAtEnd (default=true) to be able to suppress
25      writing a pickup at the last timestep
26    o tools/mpack-1.6 :
27      - disable automake (not working) and autoconf (not needed).
28      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
29        also cleaner with much less compilation warnings.
30    o pkg/profiles:
31      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
32      (for "less than 32 characters name" compiler requirement)
33    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
34      conditions that have a different sampling frequency than S/T/U/V obcs
35    o pkg/diagnostics (stats-diags):
36      - fix global Min/Max in case 1 processor get only empty tiles
37    o genmake2: replace (4 times)
38         make genmake_tc_1.o >> genmake_warnings 2>&1
39      with
40         COMM="$CC $CFLAGS -c genmake_tc_1.c"
41         echo $COMM >> genmake_warnings
42         $COMM >> genmake_warnings 2>&1
43      to make genmake2 always see the value of CC as specified in the optfile.
44    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
45      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
46      - modify verification advect_cs test to test SOM-advection on CS-grid.
47    o pkg/ctrl:
48      - Rewrite of ctrl_map_ini_ecco.F,
49        introducing a generic routine (ctrl_map_ini_gen.F).
50      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
51    
52    checkpoint59n
53    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
54      number in dedicate array "hdiag":
55      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
56        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
57      - many small changes (integer format) for large number of diagnostics
58      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
59        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
60    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
61      usingSphericalGrid, this allows to define the rotated grid coordinates
62      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
63      geographical coordinates according to the inverse of the rotation defined
64      by the Euler angles, so that Coriolis parameter and online-interpolation by
65      exf works with the geographical coordinates on XC/YC/XG/YG.
66      Naturally, this feature does not work with all packages, so some
67      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
68      profiles), because there the coordinates are assumed to be regular
69      spherical grid coordinates.
70    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
71      - introduce isopycnal diffusion coefficient control.
72    o tools/adjoint_options:
73      - additional control vector components.
74    o pkg/mnc: have mnc create marginally meaning full coordinate variables
75      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
76    o pkg/mypackage:
77      - add example of read/write pickup for state-var ;
78      - add entry points to the main code for state-vars diags & write-pickup.
79    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
80      transitions for useExfYearlyFields
81      - add new subroutine that determines the file to read from for
82        use*YearlyFields = .TRUE. and .FALSE.
83      - add a verification experiment to global_with_exf that tests
84        useExfYearlyFields with USE_EXF_INTERPOLATION defined
85    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
86      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
87      subroutines (which could be generated from a template, because they are
88      almost identical), for now they are included in obcs_prescribe_read.F for
89      simplicity
90    o pkg/exf:
91      - add a little more diagnostic to exf_interp_read (in analogy to
92        mds_read_field, can be turned off with debugLevel < debugLevA=1)
93      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
94        ugly but fast by unrolling short inner loops, inserting a unroll=8
95        directive in routine lagran, and splitting a loop and making do while the
96        outermost loop (the latter requires the intoduction of index arrays)
97    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
98    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
99      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
100    o verification/seaice_obcs: updated for restart test and latest options
101    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
102      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
103      for now this is only available for the C-grid code and also within
104      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
105    
106    checkpoint59m
107    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
108      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
109    o gad_som : fix flux output (& diagnostics) to have same units as other  
110      advection scheme fluxes (was previously multiplied by deltaT).  
111    o added verification/seaice_obcs both to test seaice open boundaries
112      and to provide an example matlab scrpt for generating them
113    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
114    o pkg/salt_plume: clean up salt_plume_frac.F to
115      remove redundancy in PlumeMethod 1 and 4
116    o pkg/kpp: added saltplume diagnostics
117    o pkg/obcs and pkg/seaice:
118      - do not set uice and vice to zero when OB*icefile are unspecified
119      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
120      - moved seaice tracer obcs after call to seaice_growth
121    o pkg/salt_plume: added various options for salt plume depth
122      criterion and for vertical distribution of the salt
123    
124    checkpoint59l
125    o pkg/ptracers: new version of ptracers pickup:
126      read meta file and write only fields which are needed to restart.
127      ( same logic as main pickup file ; also using pickupStrictlyMatch )
128    o pkg/seaice:
129      - add timescale for melting due to warm mixed layer as a means of
130        setting SEAICE_availHeatFrac more conveniently
131      - add a CPP-flag/runtime parameter check for flooding algorithm
132      - reformulated availHeat in seaice_growth.F to be independent of AREA
133    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
134      unit changes
135    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
136    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
137      SX vector computer.
138    o pkg/seaice:
139      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
140        seaice forcing fields can now be read only through pkg/exf
141      - removed some unused halos
142    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
143    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
144      or U/VICE from U/VWIND before computing U/VSTRESS
145    
146    checkpoint59k
147    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
148      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
149    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
150      all experiments pass when compile with un-initialised var. checking option.
151    o added pkg/salt_plume
152    o script to test restart (for now, in MITgcm_contrib/jmc_script)
153    o pkg/seaice: new read/write pickup version.
154      read meta file and write only fields which are needed to restart.
155      ( same logic as main pickup file ; also using pickupStrictlyMatch )
156    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
157    o lab_sea.hb87: modify the domain & update output.hb87.txt :
158      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
159      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
160      process. Fixed here by closing the domain at the Northern boundary.
161    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
162    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
163      a set of consecutive levels in/from a 3-D array.
164    o pkg/ptracers:
165      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
166      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
167    
168    checkpoint59j
169    o in pkgs: dic, obcs, offline, rbcs:
170      standard way to compute coeff. for time interpolation between 2 time reccords
171      which retains full precision (& make results less dependent on compiler).
172      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
173    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
174      packages instead of reading ice cover and wind speed separately
175    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
176     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
177      to allow to compile customized code before the update)
178    o cleaning-up:
179      - fix CPP instruction syntax in pkg/obcs
180      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
181        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
182      - fix some threads issue in IO parts.
183    o pkg/dic:
184      - add tons of "_d 0" (--> much better testreports !)
185       and then update outputs of tutorial_global_oce_biogeo
186    o pkg/mom_fluxform:
187      add a special version of momentum advection intended to conserve momentum
188      next to a bathymetry step or a coastline edge. (default = off = #undef)
189    o new read/write pickup version:
190      - for now, only implemented for main (mdsio) pickup file.
191      - write out only what is needed to restart; merge pickup_nh , pickup_ph
192        and main pickup together.
193      - read meta file; read only what is needed to restart; stop if a field
194        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
195        if it make sense (even if the restart is not perfect).
196      - if no meta file, assume that pickup to read corresponds exactly to
197        a pickup that would currently be written.
198      - read pickup written in the old format (until checkpoint59i) if it
199        recognizes an old meta file (no field-list).
200      - add a meta file in exp. which starts from a pickup: 2 cases:
201        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
202         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
203        b) a meta file describing the content of the associated pickup file
204         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
205    o pkg/mdsio & pkg/rw:
206      - new routine to read a meta file ; new set of routine to read
207        Multiple-fields file (with meta file).
208    o added open boundary conditions capability for seaice
209        HSNOW, HSALT, UICE, and VICE
210    
211    checkpoint59i
212    o adjoint:
213      * fix multiDimAdvection adjoint
214        (partial recomputation problem by TAF for fVerT(:,:,kDown)
215        and comlev1 size definition (maxpass vs. max. number of tracers)
216      * verification/global_ocean.90x45x15 adjoint now tests
217        NLFS and multiDimAdvection using DST3 (=30)
218      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
219    o pkg/kpp: add "_d 0" to real constant (if missing);
220      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
221      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
222    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
223      for internal parameters related to restart process (formerly from PARAMS.h)
224      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
225    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
226      as argument. (only atm2d & obcs write_pickup have not yet been updated)
227    o pkg/monitor:
228      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
229      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
230      - account for deep Atmosphere factor and density factor (anelastic)
231    o added open boundary conditions capability for seaice HEFF and AREA
232    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
233      thermodynamics
234      - requires a little reorganization, which affects the testreport results
235        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
236        so that now the conservative form is tested
237      - add a few comments
238    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
239    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
240    o add new diagnostics to seaice: advective, diffusive fluxes (only for
241      multidim-advection, for scheme 2 they are not filled) and transports,
242      thermodynamic growth rates
243    o change units of EmPmR (inside the code, + within coupling interface)
244      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
245      Affects results @ truncation level (cg2d match) and update output of
246       experiments: lab_sea(6), global_ocean.90x40x15(10),
247      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
248      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
249      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
250      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
251    
252    checkpoint59h
253    o pkg/exf:
254      - improve vectorization by moving if-statement out of loops in
255        exf_mapfields, exf_radiation
256      - exf_bulkformulae.F: introduce 2D fields and vectorize code
257    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
258    o testreport:
259      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
260        monitor & update offline_exf_seaice exp. output.
261      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
262    o pkg/seaice:
263      - bug fix in the evp solver: boundary conditions were affected be
264        masking of zMax/zMin (changes results)
265      - minor bug fix in boundary conditions in seaice_calc_strainrates
266        (changes results for no_slip)
267      - seaice_lsr.F: make interpolation of eta dependent on boundaries
268      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
269      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
270        stress formulation and no-slip boundary conditions
271    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
272      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
273    o pkg/seaice: a first HSALT time stepping equation has been checked in
274    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
275      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
276      without requiring DO-IF statements
277    o pkg/thsice:
278      use continuous power-law function for partition of energy between lateral
279      melting/freezing and thinning/thickening ; old code using step function
280      still available with #undef THSICE_FRACEN_POWERLAW
281      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
282    o testreport: change AD testing : check against results/output_adm.txt
283      using same scripts as for forward test.
284    
285    checkpoint59g
286    o adjoint testing: in preparation for changing testreport:
287      - output format: cost and grad written on separated lines
288      - ad output results in directory "results" (instead of "results_ad")
289    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
290    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
291    o pkg/ecco: allow user defined cost function contributions
292    o testreport:
293      Allow to choose (per experiment) the list of tested output variables
294       and the main variable (used to issue a pass/FAIL ) ;
295      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
296      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
297      Also modify printing of summary:
298       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
299       b) echo the list of tested variables in the individual summary.txt of
300          each experiment.
301    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
302      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
303      (but still depend on the tile decompostion of the domain).
304    o pkg/seaice: change a discretization detail to make the B-grid code
305      "more symmetric". This change is likely to remove all "ridges/leads" that
306      where quasi-aligned with the grid in B-grid solutions. It may also be
307      the solution to the stress coupling issues with the B-grid.
308    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
309      remove .cvsignore from input dir. (since testreport no longer run here).
310    o pkg/thsice:
311     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
312     - fix reshaping of sea-ice just after advection:
313       melt all the ice only if ice-volume is too small.
314     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
315       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
316     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
317    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
318      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
319    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
320      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
321      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
322      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
323      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
324      -> update output.txt
325    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
326     this affects truncation error: -> update output.txt of exp:
327      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
328      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
329    
330    checkpoint59f
331    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
332    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
333      a bounded range (in forward mode)
334    o pkg/ecco, ctrl, autodiff and mom_common:
335     internal parameter controls, completements of implementations
336    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
337    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
338      (not seem any difference in testing results).
339    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
340       at face corners.
341    o pkg/generic_advdiff:
342     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
343      loop range indices for computing vertical advection tendency
344      and do the calculation in the interior only (no overlap) ;
345      for now, only implemented for SOM advection (to save CPU time).
346     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
347    o exch2 adjoint
348      First set of changes:
349      - add exch2 hand-written adjoint templates
350      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
351        This will require cleanup in pkg/autodiff/*.F
352        (changed routines currently kept separate in verif. code/)
353      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
354        that used to hide exch2 or cubed-sphere specific code
355        (commented via 'cph-exch2')
356    o pkg/seaice
357      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
358    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
359       output of global_ocean.cs32x15.thsice .
360    
361    checkpoint59e
362    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
363      for B-grid vector (not yet tested) and C-grid vector (<- only used
364      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
365    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
366      (#ifdef ALLOW_SALT_PLUME)
367    o gather_2d/scatter_2d: removed halo regions
368    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
369      scheme and the corresponding test case (under front_relax dir). For now,
370      only available with Skew-flux form and not yet tested in realistic set-up.
371      adjoint: store directives updated, but gradient checks deteriorated,
372      so maybe GM/Redi adjoint is now broken.
373    o seaice adjoint
374      * add AREA, HEFF, HSNOW as control variable
375        (should not change lab_sea results)
376      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
377    o pkg/seaice:
378      * added computation of saltFlux in seaice_growth;
379        For time being, sea ice salinity is assumed constant
380        contribution of snow flooding to freshening of sea ice is neglected.
381        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
382        defaults to 0.0 in order to maintain backward compatibility.
383        Typical values for SEAICE_salinity are 4 to 10 g/kg.
384      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
385      * added SEAICE_availHeatFrac, which specifies fraction of surface level
386        heat content used to melt or grow ice
387      * commented out cap of HICE: it helps keep ice thinner
388      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
389      * applied OBCS T/S mask to HEFFM sea ice mask
390    
391    checkpoint59d
392    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
393     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
394     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
395    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
396     and change default value of parameter "GM_Small_Number";
397     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
398       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
399       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
400    o pkg/ecco: cost function when applying pkg/smooth to controls
401    o pkg/ctrl: add forcingPrecond run time parameter
402    o pkg/seaice:
403     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
404     - fix bug in metric terms of u-equation in LSR solver (implicit part),
405       changes verification/lab_sea
406     - rearrange implicit part of u-equation in LSR solver to make it easier to
407       read, understand, and debug. This causes changes at the truncation level.
408     - fix (serious) bug in the boundary conditions (sign error in the implicit
409       part) of the LSR solver. Changes all LSR results.
410     - fixed problem with HSNOW initialization to avoid thick snow when AREA
411       is initilized with small values - does not change lab_sea results.
412     - added HsnowFile initialization capability
413    o pkg/smooth: addition to model/src and pkg/ctrl so allow
414     initialization of pkg/smooth and application to control vector
415    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
416    o dependencies: pkg/profiles requires pkg/cal
417    o pkg/profiles:
418     - added option ALLOW_PROFILES_GENERICGRID
419         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
420         that interpolation information (grid points and coefficients) is provided
421         within the netcdf input files.
422         -> sample matlab scripts can be found in MITgcm_contrib/gael
423         that allow you to prepare netcdf input files.
424     - also modified: cleaner include statements, cleaner error print statements,
425       cleaner stops when error, and more tests of the netcdf input files consistency.
426    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
427    o pkg/seaice:
428     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
429       requires a new routine: seaice_diagnostics_fill.F
430     - make sure that seaice does not move if not forced (pressure replacement
431       method, Hibler and Ip, 1995), changes results
432     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
433     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
434       It is turned off by default (=-1.), because it changes the results.
435     - make it possible to read AREA from a file, too.
436    
437    checkpoint59c
438    o add S/R and diagnostics for oceanic mixed-layer depth
439    o move GMRedi call after all vertical mixing schemes (including KPP)
440    o pkg/thsice:
441     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
442      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
443    o pkg/obcs:
444     - bug fix for balance code
445    o pkg/seaice:
446      - allow values of SEAICE_elasticParm > 1
447      - add new parameter SEAICE_evpTauRelax as an alternative
448        to SEAICE_elasticParm
449      - make lsr boundary conditions free slip (by default), changes result
450      - add code for no slip boundary conditions for lsr
451      - set minimum of zeta to zero (and not 4e8) (changes results)
452      - add a cap on AREA after advecting AREA if seaice_growth is not called
453    o change calculation of Visbeck K:
454      - no longer depend on tapering scheme; instead, compute slope (limited
455        by GM_maxSlope). this is equivalent to what was comuted before with
456        clipping or linear tappering.
457      - fix vertical averaging (wrong by 1/2 level)
458      - leave the old version (but will not be maintained) within
459        #ifdef OLD_VISBECK_CALC / #endif
460      - update output of exp. ideal_2D_oce
461    o change error catch in calc_r_star to improve vectorization
462    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
463      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
464    o adjoint:
465      Re-organized adjoint checkpointing according to Matt Mazloff
466      (but with modifs/completions/cleanups)
467      Storing is now bundled into large arrays to optimized I/O
468      (and second step in cleanup of the_main_loop)
469    
470    checkpoint59b
471    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
472      - export/import (between ocean & coupler) fields needed for ocean DIC.
473    o pkg/seaice:
474      - get rid of three more exchanges seaice_calc_viscosities (required
475        different loop boundaries in seaice_lsr and seaice_ocean_stress)
476      - bug fix in seaice_ocean_stress (update of lab_sea required)
477      - reduce loop boundaries to necessary minimum also in seaice_evp
478      - go back to the old way of computing deltaC/Z as the adjoint likes that
479        better
480    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
481      passive tracer to an Age Tracer) + update output.txt
482    o pkg/exf:
483      - implement A-grid / C-grid selection for wind-stress input files.
484      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
485      for now, in exf_bulk_largeyeager04.F only :
486      - change implementation for case where windspeed + 2. components wind-stress
487        are read-in. AND use rhoConstFresh to convert evap.
488    o pkg/seaice:
489      - use correct EXCH_UV for wind-forcing (on A-grid).
490      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
491        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
492    o pkg/exf:
493      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
494      EXF_INTERPOLATION:
495      - merge global_with_exf/code version of exf_interp_read.F
496        to the main code ;
497      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
498        reading the file ; Important: This options needs to be defined to recover
499        previous code.
500        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
501      - no longer loose real*8 precision along the way when using exf_iprec=64.
502    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
503      - change discretisation of evp-solver in order to avoid another exchange
504        (changes lab_sea) and clean up a little
505      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
506        help the adjoint (this also changes the results slightly)
507      - add a few "_d 0" where they had been missing in seaice_evp.F
508      - cleaning up: remove unused seaice_calc_rhs.F
509    o pkg/exf: some cleaning-up:
510      - change various "constants" into runtime parameters
511      - cleaned-up Large&Yeager04 routine which should eventually
512        replace exf_bulkformulae.F (changed names of S/R and CPP)
513        and merged various ALLOW_ATM_WIND options
514     only used with thsice pkg (in thsice_get_exf.F):
515      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
516        which are used when useStabilityFct_overIce=TRUE (= the default)
517      - change default values of ice & snow emissivity and scale downward LW
518        by ice & snow emissivity.
519    o pkg/thsice:
520     fix few little problems, in thsice_calc_thickn.F:
521      - growth vertically (and not laterally) if iceFrac == iceMaskMax
522      - melt only laterally if hIce < hThinIce (as the comments say)
523      and in thsice_extend.F:
524      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
525      - start to form ice as soon as the minimum ice-volume is reachable.
526     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
527      and cpl_aim+ocn
528  o pkg/kpp  o pkg/kpp
  - remove wrong (within bi,bj loops) EXCH calls.  
  - little cleaning (add argument myThid in last position, cvs header ...)  
529   - move computation of surface related input fields to KPP into a new   - move computation of surface related input fields to KPP into a new
530     subroutine kpp_forcing_surf.F     subroutine kpp_forcing_surf.F
531     - remove wrong (within bi,bj loops) EXCH calls.
532     - little cleaning (add argument myThid in last position, cvs header ...)
533     - for now, fix conservation problem by exchanging KPPviscAz (may not
534       be the best fix)
535  o pkg/seaice  o pkg/seaice
536   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
537   - remove leftover errIO flat for obsolete name list error handling   - remove leftover errIO flat for obsolete name list error handling
538    o OpenAD
539     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
540    
541  checkpoint59a  checkpoint59a
542  o pkg/seaice: some parameter clarifications and a little bit of clean up  o pkg/seaice: some parameter clarifications and a little bit of clean up
# Line 31  o in FFIELDS.h: Line 556  o in FFIELDS.h:
556       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
557  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
558  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
559      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
560        are no longer updating the vertical diffusivity array
561        (passed as argument) but are (re-) setting those arrays.
562  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
563    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
564      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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