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revision 1.703 by gforget, Fri Jul 14 22:14:28 2006 UTC revision 1.974 by dfer, Fri Apr 11 21:48:34 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 thsice pkg:
8      - Now hsMax limits snow heitght by turning it into ice following
9        flooding scheme (and now conserving energy)
10      - Slight rewriting of the formula in thsice_calc_thick.F
11      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
12        --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
13    
14    checkpoint59p
15    o gchem / dic / cfc :
16      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
17      - add new parameter files: "data.dic" & "data.cfc" ;
18      - various re-arrangement in initialisation & header file ;
19      - fix tutorial_global_oce_biogeo for multi-threaded test.
20    o pkg/dic: test for "pickup_dic" file when restarting ;
21      if no pickup-file, can restart with a re-initialised pH (same as it did
22      before) providing pickupStrictlyMatch is set to False.
23    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
24      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
25    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
26      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
27    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
28     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
29       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
30    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
31       scheme to use for vorticty-term ;
32     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
33       (with default selectVortScheme, return to original discretisation)
34     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
35    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
36    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
37      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
38      also fix diagnostics VISCAHW & VISCA4W.
39    
40    checkpoint59o
41    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
42    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
43      move a few statemens out the main loop into separate loops
44    o pkg/shelfice:
45      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
46        (kg/m^2/s), does not break tests, because in verification/isomip,
47        rhoConstFresh=rhoConst (by accident)
48      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
49      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
50        new file model/src/seawater.F, so that they are available for all pkgs.
51      - convert potential temperature into in-situ temperature. This changes the
52        isomip tests => update tests
53    o add a flag writePickupAtEnd (default=true) to be able to suppress
54      writing a pickup at the last timestep
55    o tools/mpack-1.6 :
56      - disable automake (not working) and autoconf (not needed).
57      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
58        also cleaner with much less compilation warnings.
59    o pkg/profiles:
60      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
61      (for "less than 32 characters name" compiler requirement)
62    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
63      conditions that have a different sampling frequency than S/T/U/V obcs
64    o pkg/diagnostics (stats-diags):
65      - fix global Min/Max in case 1 processor get only empty tiles
66    o genmake2: replace (4 times)
67         make genmake_tc_1.o >> genmake_warnings 2>&1
68      with
69         COMM="$CC $CFLAGS -c genmake_tc_1.c"
70         echo $COMM >> genmake_warnings
71         $COMM >> genmake_warnings 2>&1
72      to make genmake2 always see the value of CC as specified in the optfile.
73    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
74      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
75      - modify verification advect_cs test to test SOM-advection on CS-grid.
76    o pkg/ctrl:
77      - Rewrite of ctrl_map_ini_ecco.F,
78        introducing a generic routine (ctrl_map_ini_gen.F).
79      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
80    
81    checkpoint59n
82    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
83      number in dedicate array "hdiag":
84      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
85        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
86      - many small changes (integer format) for large number of diagnostics
87      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
88        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
89    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
90      usingSphericalGrid, this allows to define the rotated grid coordinates
91      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
92      geographical coordinates according to the inverse of the rotation defined
93      by the Euler angles, so that Coriolis parameter and online-interpolation by
94      exf works with the geographical coordinates on XC/YC/XG/YG.
95      Naturally, this feature does not work with all packages, so some
96      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
97      profiles), because there the coordinates are assumed to be regular
98      spherical grid coordinates.
99    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
100      - introduce isopycnal diffusion coefficient control.
101    o tools/adjoint_options:
102      - additional control vector components.
103    o pkg/mnc: have mnc create marginally meaning full coordinate variables
104      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
105    o pkg/mypackage:
106      - add example of read/write pickup for state-var ;
107      - add entry points to the main code for state-vars diags & write-pickup.
108    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
109      transitions for useExfYearlyFields
110      - add new subroutine that determines the file to read from for
111        use*YearlyFields = .TRUE. and .FALSE.
112      - add a verification experiment to global_with_exf that tests
113        useExfYearlyFields with USE_EXF_INTERPOLATION defined
114    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
115      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
116      subroutines (which could be generated from a template, because they are
117      almost identical), for now they are included in obcs_prescribe_read.F for
118      simplicity
119    o pkg/exf:
120      - add a little more diagnostic to exf_interp_read (in analogy to
121        mds_read_field, can be turned off with debugLevel < debugLevA=1)
122      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
123        ugly but fast by unrolling short inner loops, inserting a unroll=8
124        directive in routine lagran, and splitting a loop and making do while the
125        outermost loop (the latter requires the intoduction of index arrays)
126    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
127    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
128      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
129    o verification/seaice_obcs: updated for restart test and latest options
130    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
131      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
132      for now this is only available for the C-grid code and also within
133      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
134    
135    checkpoint59m
136    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
137      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
138    o gad_som : fix flux output (& diagnostics) to have same units as other  
139      advection scheme fluxes (was previously multiplied by deltaT).  
140    o added verification/seaice_obcs both to test seaice open boundaries
141      and to provide an example matlab scrpt for generating them
142    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
143    o pkg/salt_plume: clean up salt_plume_frac.F to
144      remove redundancy in PlumeMethod 1 and 4
145    o pkg/kpp: added saltplume diagnostics
146    o pkg/obcs and pkg/seaice:
147      - do not set uice and vice to zero when OB*icefile are unspecified
148      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
149      - moved seaice tracer obcs after call to seaice_growth
150    o pkg/salt_plume: added various options for salt plume depth
151      criterion and for vertical distribution of the salt
152    
153    checkpoint59l
154    o pkg/ptracers: new version of ptracers pickup:
155      read meta file and write only fields which are needed to restart.
156      ( same logic as main pickup file ; also using pickupStrictlyMatch )
157    o pkg/seaice:
158      - add timescale for melting due to warm mixed layer as a means of
159        setting SEAICE_availHeatFrac more conveniently
160      - add a CPP-flag/runtime parameter check for flooding algorithm
161      - reformulated availHeat in seaice_growth.F to be independent of AREA
162    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
163      unit changes
164    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
165    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
166      SX vector computer.
167    o pkg/seaice:
168      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
169        seaice forcing fields can now be read only through pkg/exf
170      - removed some unused halos
171    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
172    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
173      or U/VICE from U/VWIND before computing U/VSTRESS
174    
175    checkpoint59k
176    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
177      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
178    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
179      all experiments pass when compile with un-initialised var. checking option.
180    o added pkg/salt_plume
181    o script to test restart (for now, in MITgcm_contrib/jmc_script)
182    o pkg/seaice: new read/write pickup version.
183      read meta file and write only fields which are needed to restart.
184      ( same logic as main pickup file ; also using pickupStrictlyMatch )
185    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
186    o lab_sea.hb87: modify the domain & update output.hb87.txt :
187      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
188      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
189      process. Fixed here by closing the domain at the Northern boundary.
190    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
191    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
192      a set of consecutive levels in/from a 3-D array.
193    o pkg/ptracers:
194      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
195      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
196    
197    checkpoint59j
198    o in pkgs: dic, obcs, offline, rbcs:
199      standard way to compute coeff. for time interpolation between 2 time reccords
200      which retains full precision (& make results less dependent on compiler).
201      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
202    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
203      packages instead of reading ice cover and wind speed separately
204    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
205     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
206      to allow to compile customized code before the update)
207    o cleaning-up:
208      - fix CPP instruction syntax in pkg/obcs
209      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
210        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
211      - fix some threads issue in IO parts.
212    o pkg/dic:
213      - add tons of "_d 0" (--> much better testreports !)
214       and then update outputs of tutorial_global_oce_biogeo
215    o pkg/mom_fluxform:
216      add a special version of momentum advection intended to conserve momentum
217      next to a bathymetry step or a coastline edge. (default = off = #undef)
218    o new read/write pickup version:
219      - for now, only implemented for main (mdsio) pickup file.
220      - write out only what is needed to restart; merge pickup_nh , pickup_ph
221        and main pickup together.
222      - read meta file; read only what is needed to restart; stop if a field
223        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
224        if it make sense (even if the restart is not perfect).
225      - if no meta file, assume that pickup to read corresponds exactly to
226        a pickup that would currently be written.
227      - read pickup written in the old format (until checkpoint59i) if it
228        recognizes an old meta file (no field-list).
229      - add a meta file in exp. which starts from a pickup: 2 cases:
230        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
231         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
232        b) a meta file describing the content of the associated pickup file
233         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
234    o pkg/mdsio & pkg/rw:
235      - new routine to read a meta file ; new set of routine to read
236        Multiple-fields file (with meta file).
237    o added open boundary conditions capability for seaice
238        HSNOW, HSALT, UICE, and VICE
239    
240    checkpoint59i
241    o adjoint:
242      * fix multiDimAdvection adjoint
243        (partial recomputation problem by TAF for fVerT(:,:,kDown)
244        and comlev1 size definition (maxpass vs. max. number of tracers)
245      * verification/global_ocean.90x45x15 adjoint now tests
246        NLFS and multiDimAdvection using DST3 (=30)
247      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
248    o pkg/kpp: add "_d 0" to real constant (if missing);
249      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
250      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
251    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
252      for internal parameters related to restart process (formerly from PARAMS.h)
253      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
254    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
255      as argument. (only atm2d & obcs write_pickup have not yet been updated)
256    o pkg/monitor:
257      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
258      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
259      - account for deep Atmosphere factor and density factor (anelastic)
260    o added open boundary conditions capability for seaice HEFF and AREA
261    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
262      thermodynamics
263      - requires a little reorganization, which affects the testreport results
264        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
265        so that now the conservative form is tested
266      - add a few comments
267    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
268    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
269    o add new diagnostics to seaice: advective, diffusive fluxes (only for
270      multidim-advection, for scheme 2 they are not filled) and transports,
271      thermodynamic growth rates
272    o change units of EmPmR (inside the code, + within coupling interface)
273      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
274      Affects results @ truncation level (cg2d match) and update output of
275       experiments: lab_sea(6), global_ocean.90x40x15(10),
276      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
277      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
278      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
279      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
280    
281    checkpoint59h
282    o pkg/exf:
283      - improve vectorization by moving if-statement out of loops in
284        exf_mapfields, exf_radiation
285      - exf_bulkformulae.F: introduce 2D fields and vectorize code
286    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
287    o testreport:
288      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
289        monitor & update offline_exf_seaice exp. output.
290      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
291    o pkg/seaice:
292      - bug fix in the evp solver: boundary conditions were affected be
293        masking of zMax/zMin (changes results)
294      - minor bug fix in boundary conditions in seaice_calc_strainrates
295        (changes results for no_slip)
296      - seaice_lsr.F: make interpolation of eta dependent on boundaries
297      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
298      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
299        stress formulation and no-slip boundary conditions
300    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
301      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
302    o pkg/seaice: a first HSALT time stepping equation has been checked in
303    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
304      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
305      without requiring DO-IF statements
306    o pkg/thsice:
307      use continuous power-law function for partition of energy between lateral
308      melting/freezing and thinning/thickening ; old code using step function
309      still available with #undef THSICE_FRACEN_POWERLAW
310      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
311    o testreport: change AD testing : check against results/output_adm.txt
312      using same scripts as for forward test.
313    
314    checkpoint59g
315    o adjoint testing: in preparation for changing testreport:
316      - output format: cost and grad written on separated lines
317      - ad output results in directory "results" (instead of "results_ad")
318    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
319    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
320    o pkg/ecco: allow user defined cost function contributions
321    o testreport:
322      Allow to choose (per experiment) the list of tested output variables
323       and the main variable (used to issue a pass/FAIL ) ;
324      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
325      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
326      Also modify printing of summary:
327       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
328       b) echo the list of tested variables in the individual summary.txt of
329          each experiment.
330    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
331      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
332      (but still depend on the tile decompostion of the domain).
333    o pkg/seaice: change a discretization detail to make the B-grid code
334      "more symmetric". This change is likely to remove all "ridges/leads" that
335      where quasi-aligned with the grid in B-grid solutions. It may also be
336      the solution to the stress coupling issues with the B-grid.
337    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
338      remove .cvsignore from input dir. (since testreport no longer run here).
339    o pkg/thsice:
340     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
341     - fix reshaping of sea-ice just after advection:
342       melt all the ice only if ice-volume is too small.
343     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
344       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
345     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
346    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
347      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
348    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
349      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
350      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
351      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
352      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
353      -> update output.txt
354    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
355     this affects truncation error: -> update output.txt of exp:
356      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
357      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
358    
359    checkpoint59f
360    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
361    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
362      a bounded range (in forward mode)
363    o pkg/ecco, ctrl, autodiff and mom_common:
364     internal parameter controls, completements of implementations
365    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
366    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
367      (not seem any difference in testing results).
368    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
369       at face corners.
370    o pkg/generic_advdiff:
371     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
372      loop range indices for computing vertical advection tendency
373      and do the calculation in the interior only (no overlap) ;
374      for now, only implemented for SOM advection (to save CPU time).
375     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
376    o exch2 adjoint
377      First set of changes:
378      - add exch2 hand-written adjoint templates
379      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
380        This will require cleanup in pkg/autodiff/*.F
381        (changed routines currently kept separate in verif. code/)
382      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
383        that used to hide exch2 or cubed-sphere specific code
384        (commented via 'cph-exch2')
385    o pkg/seaice
386      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
387    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
388       output of global_ocean.cs32x15.thsice .
389    
390    checkpoint59e
391    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
392      for B-grid vector (not yet tested) and C-grid vector (<- only used
393      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
394    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
395      (#ifdef ALLOW_SALT_PLUME)
396    o gather_2d/scatter_2d: removed halo regions
397    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
398      scheme and the corresponding test case (under front_relax dir). For now,
399      only available with Skew-flux form and not yet tested in realistic set-up.
400      adjoint: store directives updated, but gradient checks deteriorated,
401      so maybe GM/Redi adjoint is now broken.
402    o seaice adjoint
403      * add AREA, HEFF, HSNOW as control variable
404        (should not change lab_sea results)
405      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
406    o pkg/seaice:
407      * added computation of saltFlux in seaice_growth;
408        For time being, sea ice salinity is assumed constant
409        contribution of snow flooding to freshening of sea ice is neglected.
410        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
411        defaults to 0.0 in order to maintain backward compatibility.
412        Typical values for SEAICE_salinity are 4 to 10 g/kg.
413      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
414      * added SEAICE_availHeatFrac, which specifies fraction of surface level
415        heat content used to melt or grow ice
416      * commented out cap of HICE: it helps keep ice thinner
417      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
418      * applied OBCS T/S mask to HEFFM sea ice mask
419    
420    checkpoint59d
421    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
422     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
423     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
424    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
425     and change default value of parameter "GM_Small_Number";
426     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
427       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
428       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
429    o pkg/ecco: cost function when applying pkg/smooth to controls
430    o pkg/ctrl: add forcingPrecond run time parameter
431    o pkg/seaice:
432     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
433     - fix bug in metric terms of u-equation in LSR solver (implicit part),
434       changes verification/lab_sea
435     - rearrange implicit part of u-equation in LSR solver to make it easier to
436       read, understand, and debug. This causes changes at the truncation level.
437     - fix (serious) bug in the boundary conditions (sign error in the implicit
438       part) of the LSR solver. Changes all LSR results.
439     - fixed problem with HSNOW initialization to avoid thick snow when AREA
440       is initilized with small values - does not change lab_sea results.
441     - added HsnowFile initialization capability
442    o pkg/smooth: addition to model/src and pkg/ctrl so allow
443     initialization of pkg/smooth and application to control vector
444    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
445    o dependencies: pkg/profiles requires pkg/cal
446    o pkg/profiles:
447     - added option ALLOW_PROFILES_GENERICGRID
448         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
449         that interpolation information (grid points and coefficients) is provided
450         within the netcdf input files.
451         -> sample matlab scripts can be found in MITgcm_contrib/gael
452         that allow you to prepare netcdf input files.
453     - also modified: cleaner include statements, cleaner error print statements,
454       cleaner stops when error, and more tests of the netcdf input files consistency.
455    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
456    o pkg/seaice:
457     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
458       requires a new routine: seaice_diagnostics_fill.F
459     - make sure that seaice does not move if not forced (pressure replacement
460       method, Hibler and Ip, 1995), changes results
461     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
462     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
463       It is turned off by default (=-1.), because it changes the results.
464     - make it possible to read AREA from a file, too.
465    
466    checkpoint59c
467    o add S/R and diagnostics for oceanic mixed-layer depth
468    o move GMRedi call after all vertical mixing schemes (including KPP)
469    o pkg/thsice:
470     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
471      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
472    o pkg/obcs:
473     - bug fix for balance code
474    o pkg/seaice:
475      - allow values of SEAICE_elasticParm > 1
476      - add new parameter SEAICE_evpTauRelax as an alternative
477        to SEAICE_elasticParm
478      - make lsr boundary conditions free slip (by default), changes result
479      - add code for no slip boundary conditions for lsr
480      - set minimum of zeta to zero (and not 4e8) (changes results)
481      - add a cap on AREA after advecting AREA if seaice_growth is not called
482    o change calculation of Visbeck K:
483      - no longer depend on tapering scheme; instead, compute slope (limited
484        by GM_maxSlope). this is equivalent to what was comuted before with
485        clipping or linear tappering.
486      - fix vertical averaging (wrong by 1/2 level)
487      - leave the old version (but will not be maintained) within
488        #ifdef OLD_VISBECK_CALC / #endif
489      - update output of exp. ideal_2D_oce
490    o change error catch in calc_r_star to improve vectorization
491    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
492      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
493    o adjoint:
494      Re-organized adjoint checkpointing according to Matt Mazloff
495      (but with modifs/completions/cleanups)
496      Storing is now bundled into large arrays to optimized I/O
497      (and second step in cleanup of the_main_loop)
498    
499    checkpoint59b
500    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
501      - export/import (between ocean & coupler) fields needed for ocean DIC.
502    o pkg/seaice:
503      - get rid of three more exchanges seaice_calc_viscosities (required
504        different loop boundaries in seaice_lsr and seaice_ocean_stress)
505      - bug fix in seaice_ocean_stress (update of lab_sea required)
506      - reduce loop boundaries to necessary minimum also in seaice_evp
507      - go back to the old way of computing deltaC/Z as the adjoint likes that
508        better
509    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
510      passive tracer to an Age Tracer) + update output.txt
511    o pkg/exf:
512      - implement A-grid / C-grid selection for wind-stress input files.
513      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
514      for now, in exf_bulk_largeyeager04.F only :
515      - change implementation for case where windspeed + 2. components wind-stress
516        are read-in. AND use rhoConstFresh to convert evap.
517    o pkg/seaice:
518      - use correct EXCH_UV for wind-forcing (on A-grid).
519      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
520        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
521    o pkg/exf:
522      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
523      EXF_INTERPOLATION:
524      - merge global_with_exf/code version of exf_interp_read.F
525        to the main code ;
526      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
527        reading the file ; Important: This options needs to be defined to recover
528        previous code.
529        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
530      - no longer loose real*8 precision along the way when using exf_iprec=64.
531    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
532      - change discretisation of evp-solver in order to avoid another exchange
533        (changes lab_sea) and clean up a little
534      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
535        help the adjoint (this also changes the results slightly)
536      - add a few "_d 0" where they had been missing in seaice_evp.F
537      - cleaning up: remove unused seaice_calc_rhs.F
538    o pkg/exf: some cleaning-up:
539      - change various "constants" into runtime parameters
540      - cleaned-up Large&Yeager04 routine which should eventually
541        replace exf_bulkformulae.F (changed names of S/R and CPP)
542        and merged various ALLOW_ATM_WIND options
543     only used with thsice pkg (in thsice_get_exf.F):
544      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
545        which are used when useStabilityFct_overIce=TRUE (= the default)
546      - change default values of ice & snow emissivity and scale downward LW
547        by ice & snow emissivity.
548    o pkg/thsice:
549     fix few little problems, in thsice_calc_thickn.F:
550      - growth vertically (and not laterally) if iceFrac == iceMaskMax
551      - melt only laterally if hIce < hThinIce (as the comments say)
552      and in thsice_extend.F:
553      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
554      - start to form ice as soon as the minimum ice-volume is reachable.
555     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
556      and cpl_aim+ocn
557    o pkg/kpp
558     - move computation of surface related input fields to KPP into a new
559       subroutine kpp_forcing_surf.F
560     - remove wrong (within bi,bj loops) EXCH calls.
561     - little cleaning (add argument myThid in last position, cvs header ...)
562     - for now, fix conservation problem by exchanging KPPviscAz (may not
563       be the best fix)
564    o pkg/seaice
565     - check for inconsistent evp parameter/cpp-flag combination
566     - remove leftover errIO flat for obsolete name list error handling
567    o OpenAD
568     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
569    
570    checkpoint59a
571    o pkg/seaice: some parameter clarifications and a little bit of clean up
572    o pkg/thsice: rename run-time parameters:
573       himin       -> hIceMin
574       himin0      -> hThinIce
575       hihig       -> hThickIce
576       i0          -> i0swFrac
577       transCoef   -> bMeltCoef
578       frac_energy -> fracMelting
579      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
580       with default values (for now) that do not change the results.
581      remove old version of thsice vars advection in pkg/seaice.
582    o in FFIELDS.h:
583      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
584      - make pLoad & sIceLoad always available (but still only used if
585         ATMOSPHERIC_LOADING is #define).
586    o pkg/kpp: replaced _KPP_RL with _RL
587    o bug fixes for vertical diffusivity computations when both KPP and
588        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
589        are no longer updating the vertical diffusivity array
590        (passed as argument) but are (re-) setting those arrays.
591    o pkg/seaice: fix bug in evp solver, while doing that
592      - change (improve?) discretization of stress computations for both
593        cgrid-lsr and evp solver
594      - add a new routine to compute strain rates
595      - the above changes lab_sea results
596      - add no slip conditions for evp solver (off by default), lsr-version
597        may follow
598      - fix exchange for shear at Z-points (does not change lab_sea)
599      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
600        (to force the user to pick a time step since there is not "safe" way
601        of choosing it)
602      - add principal stress diagnostics
603      - rearrange fields for evp a little to avoid having to call a: too many
604        exchanges and b: exchanges for stress trensor components which we do
605        not have.
606      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
607        of evp, complete rewrite for lsr case (latter is does not yet work
608        in all cases)
609    o pkg/kpp: add code to have mixing in shelf ice caverns
610      - add myThid to all kpp routines (long overdue)
611    
612    checkpoint59
613    o pkg/exf:
614      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
615        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
616      - move exf header files from lower_case.h to UPPER_CASE.h ;
617        add missing cvs Header & Name
618      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
619      - add namelist param. selectStressGridPosition, exf_monFreq
620      - retire many _CLIM routines, and remove data.exf_clim
621        + params moved to data.exf
622        + climsst, climsss now handled by exf_set_gen, i.e.
623          climss?period=0 refers to constant field,
624          climss?period=-12 to monthly forcing
625      - split up namelists in data.exf
626    o pkg/seaice:
627      - remove seaice_exch and seaice_exch_uv
628      - remove superfluous exchange of theta
629      - add myThid to seaice_budget_ocean/ice
630      - add new interface for atmospheric wind forcing (C-grid only)
631        + new routine
632        + two new field (taux, tauy for stress over ice)
633        + removed one global field (DAIRN) for C-grid case only
634    o pkg/thsise
635      - 2nd set of modifs for thsice adjoint in conjunction with exf
636    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
637    
638    checkpoint58y_post
639    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
640      vertical diffusivity, similar to that in MOM4; turned on using
641      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
642      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
643    o Added capability for 3D specification of background vertical diffusion
644      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
645      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
646      "data" file that contains the 3D vertical diffusivity coefficients.
647    o ice dynamics (pkg/seaice) with thsice thermodynamics:
648      - add code within pkg thsice to advect & diffuse sea-ice fields
649      similar to (and will replace) what has been added in  seaice_advdiff.F,
650      but: - conserving Mass, Heat & Salt.
651           - better when using non-linear advection scheme (not yet fully tested)
652           - can also be used in atmospheric set-up (for now, only the diffusion).
653    
654    checkpoint58x_post
655    o IO option for global-file compact format:
656      - add options when generating topology (utils/exch2/matlab-topology-generator)
657      - add I/O capability (pkg/mdsio).
658      - adapt utils/matlab/rdmds.m to read this format.
659      for now long-line format not yet supported by pkg/mdsio (& exch2).
660    o shelfice: add a few diagnostics
661    
662    checkpoint58w_post
663    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
664      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
665      (and replace horiVertRatio in NH code).
666      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
667                         and tutorial_plume_on_slope (sensitive to truncation)
668    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
669      directly to drive seaice model (C-grid only)
670    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
671     - reintroduce computation of wind from stress,
672     - compute tau (in exf_bulkformulae.F) from windstress averaged to
673       mass points to avoid tau = 0
674     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
675    o rdmnc.m: make it work with "global" files created with gluemnc
676    o rdmnc.m : some improvements in dealing with singleton dimension
677      (tested on all testreport mnc output files).
678    o genmake2: disable pkg/profiles if netcdf test fails.
679    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
680    o move call to cal_readparms up to make calendar parameters/variable available
681      to all packages
682    
683    checkpoint58v_post
684    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
685      useDynP_inEos_Zc tested.
686    o pkg/exf: changes to properly interpolate/mask/scale initial fields
687    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
688      and portions thereof.  See read_cs.txt for description and examples.
689    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
690      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
691      following the great-circle arc between those 2 points.
692    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
693      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
694    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
695     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
696     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
697     - still needs work (not working with some options ; efficiency to improve)
698       and serious testing.
699     - use this scheme for temperature & salinity in 2 advection test exp.:
700       advect_xy & advect_xz, respectively.
701    
702    checkpoint58u_post
703    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
704    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
705    o testreport: add option "-skipdir" to skip some test.
706    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
707      momentum calculation.
708    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
709    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
710      remove checkpoint.F and the_correction_step.F (no longer used);
711      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
712    o add option (linFSConserveTr) to correct for tracer source/sink due to
713      Linear Free surface
714    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
715    o pkg/thsice: fix reading mnc-pickups
716    
717    checkpoint58t_post
718    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
719    o pkg/mdsio:
720     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
721       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
722       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
723     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
724     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
725       either MDS_READ_FIELD or MDS_WRITE_FIELD )
726     - new S/R (to replace MDSWRITEMETA), which allows to write more
727       informations (variable names, time ...) to meta files.
728     - modify rdmds.m to give back the meta file content.
729    o pkg/diagnostics: change vertical interpolation to be safer, and more
730       flexible (define p-levels to interpolate to in data.diagnostics);
731      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
732       diagnostic pointer.
733    o pkg/seaice: more cleaning up of seaice_growth, added many comments
734    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
735    o fix multi-category seaice:
736     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
737       SEAICE_MULTICATEGORY
738     - fix short wave heat flux
739    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
740       and allow to use EVP solver. Change forward lab_sea: test both EVP
741       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
742    o Initial check-in of lab_sea adjoint
743      (very similar to natl_box_adjoint/code_seaice)
744      * used C-grid and EVP solver
745      * used KPP, GM/Redi
746      * uses inAdExact=.TRUE.
747      * gradient checks fail for both ADM and TLM
748        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
749        f.d. gradients actually seem more problematic than ADM, TLM gradients;
750        issue is related to forward mismatch between g77 an ifort
751    o pkg/seaice: overhaul of thermodynamics
752     - growth.F and groatb.F are replaced by new routine seaice_growth.F
753     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
754     - move a few global fields out of SEAICE.h into seaice_growth.F and
755       make them 2D (FICE/QNETO/ ...)
756     - remove FO (it is the same as QNETO)
757     - introduce a few local fields to avoid modifying external fields such
758       as atemp, etc.
759    
760    checkpoint58s_post
761    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
762      changed exf_set_gen.F so that
763        genperiod=0 means input file is one time-constant field and
764        genperiod=-12 means input file contains 12 monthly means
765    o CG2D: use pre-computed solver main-diagonal (stored in common block);
766      this affects truncation error ; generate new output file for exp. which
767      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
768        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
769        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
770        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
771        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
772        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
773    o start implementation of deep-atmosphere and anelastic formulation
774    o verification: remove 2nd copy of input files and use script "prepare_run"
775      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
776    o mom_common/vecinv/fluxform: fix a few initialisation isssues
777    o profiles: fix for multithreaded case
778    
779    o diagnostics: rename few diags:
780      s/'PRESSURE'/'RCENTER '/g
781      s/'TICE    '/'oceFreez'/g
782      s/'TAUX    '/'oceTAUX '/g
783      s/'TAUY    '/'oceTAUY '/g
784      s/'SWFLUX  '/'oceQsw  '/g
785      s/DIFx/DFxE/g
786      s/DIFy/DFyE/g
787      and add few ocean-forcing diagnostics:
788      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
789    o modifications to pkg/seaice/growth.F and budget.F, which change results of
790      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
791      as actual snow thickness.  It now refers everywhere to effective snow
792      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
793    
794    checkpoint58r_post
795    o modifications to pkg/seaice/growth.F, which change results of
796      lab_sea experiment: fixes pertain to melting snow over open water, to
797      masking EVAP under sea ice, and to using the correct AREA variable for
798      computations of EVAP, PRECIP, HSNOW, and GHEFF
799    o add ability to read bathy, salt, and theta using MNC (off by def)
800    o add flooding algorithm and advection of HSNOW for pkg/seaice;
801      both are turned off by default and do no change any results
802    o seaice advection with pkg/thsice: a step toward the use of non-linear
803      advection scheme, but #ifdef or commented out for now (requires more EXCH).
804    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
805      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
806      in natl_box (affects results @ truncation level: update output.txt)
807    o multi-threading and IO:
808      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
809      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
810        (needed to work with SingleCpuIO): tested in all verif. exp.
811    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
812      affects the results (but none of the verification test uses this scheme).
813    o Adding some pkg/diagnostics capability to pkg/seaice
814      (will certainly be subject to changes)
815    o ctrl: adding new control variables:
816      lwflux, lwdown, evap, snowprecip, apressure, runoff
817    
818    checkpoint58q_post
819    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
820      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
821      high_res_cube configuration by 4% on Columbia.
822    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
823      add (in global_with_exf/code) a version of EXF_INTERP_READ without
824      dynamical allocation (seems to work in multi-threaded).
825    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
826      single CPU io) so that TAF does not have to see EESUPPORT.h
827    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
828    
829    checkpoint58p_post
830    o obcs: stop if obcs is used with useCDscheme = .true.
831    o shelfice:
832     - fix a sign error so that no slip at shelfice interface works
833     - remove stop for combination non-hydrostatic code and shelfice. That does
834       not mean, that the results are correct, but at least they are numerically
835       stable
836    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
837    o added adjoint exch routined for all exch*3d* routines
838      and updated flow directives
839    
840    checkpoint58o_post
841    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
842      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
843    o change controling S/R for writing pickup file (new S/R do_write_pickup)
844      and clean-up reading/writing of pickup files.
845    o fix local version of read/write pickup (NH part) in rotating_tank/code
846    o simplify EXCH interface:
847     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
848     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
849    o added the regrid package
850    o shelfice:
851     - add a simple boundary layer scheme to reduce noise
852     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
853    
854    checkpoint58n_post
855    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
856       local variable (not in common block).
857    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
858      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
859      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
860        to work with SingleCpuIO.
861    o add "_d 0" to real constant of pkg/cfc subroutines ;
862       update exp. cfc_exemple & tutorial_cfc_offline output files.
863    o multi-threading and IO:
864      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
865        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
866      - barrier before and after reading.
867      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
868      - avoid using MDS_WRITELOCAL for LAND pkg output.
869      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
870        common-block variables ; Allows multi-threading with master-thread IO.
871    o change default MAX_NO_THREADS from 32 to 4 ;
872      and stop cleanly when MAX_NO_THREADS is too small.
873    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
874    
875    checkpoint58m_post
876    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
877       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
878    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
879       keep global_ocean.90x40x15 (for AD testing) with former secondary test
880       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
881    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
882        add MITgcm_tutorials (= code + all the tutorials)
883    o ecco, option to compute cost for total ssh (mean+anom)
884    o consistent with addition of ptracer and ssh in pkg/profiles
885  o profiles: adding ptracer and ssh  o profiles: adding ptracer and ssh
886  o testreport: change multi-test output-file name  o testreport: change multi-test output-file name
887    (from output.txt.{name} to output.{name}.txt)    (from output.txt.{name} to output.{name}.txt)
888  o profiles: now ok for mutli-threaded case  o profiles: now ok for mutli-tiles case
889  o seaice: add 4 parameters for different advection schemes for area,  o seaice: add 4 parameters for different advection schemes for area,
890    (effective) seaice thickness, enthalphy, and snow height. Their default    (effective) seaice thickness, enthalphy, and snow height. Their default
891    is the standard parameter SEAICEadvScheme    is the standard parameter SEAICEadvScheme

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