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revision 1.703 by gforget, Fri Jul 14 22:14:28 2006 UTC revision 1.979 by mlosch, Thu Apr 24 08:23:20 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
8      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
9      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
10      --> changes results in dome, exp4, internal_wave, seaice_obcs, and
11      tutorial_plume_on_slope.
12    o tutorial_deep_convection :
13      update the set-up and increase resolution and domain size ; start
14      from pseudo initial conditions = output at t=120mn in order to see
15      something happening when running testreport.
16    o pkg/seaice: add os7mp as an advection scheme
17                  add check for advection schemes
18                  add a flag for restoring T and S underneath sea ice
19    o pkg/my82: add netcdf-support and diagnostics
20    o thsice pkg:
21      - Now hsMax limits snow height by turning it into ice following
22        flooding scheme (and now conserving energy)
23      - Slight rewriting of the formula in thsice_calc_thick.F
24      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
25        --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
26    
27    checkpoint59p
28    o gchem / dic / cfc :
29      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
30      - add new parameter files: "data.dic" & "data.cfc" ;
31      - various re-arrangement in initialisation & header file ;
32      - fix tutorial_global_oce_biogeo for multi-threaded test.
33    o pkg/dic: test for "pickup_dic" file when restarting ;
34      if no pickup-file, can restart with a re-initialised pH (same as it did
35      before) providing pickupStrictlyMatch is set to False.
36    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
37      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
38    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
39      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
40    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
41     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
42       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
43    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
44       scheme to use for vorticty-term ;
45     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
46       (with default selectVortScheme, return to original discretisation)
47     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
48    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
49    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
50      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
51      also fix diagnostics VISCAHW & VISCA4W.
52    
53    checkpoint59o
54    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
55    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
56      move a few statemens out the main loop into separate loops
57    o pkg/shelfice:
58      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
59        (kg/m^2/s), does not break tests, because in verification/isomip,
60        rhoConstFresh=rhoConst (by accident)
61      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
62      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
63        new file model/src/seawater.F, so that they are available for all pkgs.
64      - convert potential temperature into in-situ temperature. This changes the
65        isomip tests => update tests
66    o add a flag writePickupAtEnd (default=true) to be able to suppress
67      writing a pickup at the last timestep
68    o tools/mpack-1.6 :
69      - disable automake (not working) and autoconf (not needed).
70      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
71        also cleaner with much less compilation warnings.
72    o pkg/profiles:
73      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
74      (for "less than 32 characters name" compiler requirement)
75    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
76      conditions that have a different sampling frequency than S/T/U/V obcs
77    o pkg/diagnostics (stats-diags):
78      - fix global Min/Max in case 1 processor get only empty tiles
79    o genmake2: replace (4 times)
80         make genmake_tc_1.o >> genmake_warnings 2>&1
81      with
82         COMM="$CC $CFLAGS -c genmake_tc_1.c"
83         echo $COMM >> genmake_warnings
84         $COMM >> genmake_warnings 2>&1
85      to make genmake2 always see the value of CC as specified in the optfile.
86    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
87      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
88      - modify verification advect_cs test to test SOM-advection on CS-grid.
89    o pkg/ctrl:
90      - Rewrite of ctrl_map_ini_ecco.F,
91        introducing a generic routine (ctrl_map_ini_gen.F).
92      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
93    
94    checkpoint59n
95    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
96      number in dedicate array "hdiag":
97      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
98        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
99      - many small changes (integer format) for large number of diagnostics
100      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
101        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
102    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
103      usingSphericalGrid, this allows to define the rotated grid coordinates
104      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
105      geographical coordinates according to the inverse of the rotation defined
106      by the Euler angles, so that Coriolis parameter and online-interpolation by
107      exf works with the geographical coordinates on XC/YC/XG/YG.
108      Naturally, this feature does not work with all packages, so some
109      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
110      profiles), because there the coordinates are assumed to be regular
111      spherical grid coordinates.
112    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
113      - introduce isopycnal diffusion coefficient control.
114    o tools/adjoint_options:
115      - additional control vector components.
116    o pkg/mnc: have mnc create marginally meaning full coordinate variables
117      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
118    o pkg/mypackage:
119      - add example of read/write pickup for state-var ;
120      - add entry points to the main code for state-vars diags & write-pickup.
121    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
122      transitions for useExfYearlyFields
123      - add new subroutine that determines the file to read from for
124        use*YearlyFields = .TRUE. and .FALSE.
125      - add a verification experiment to global_with_exf that tests
126        useExfYearlyFields with USE_EXF_INTERPOLATION defined
127    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
128      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
129      subroutines (which could be generated from a template, because they are
130      almost identical), for now they are included in obcs_prescribe_read.F for
131      simplicity
132    o pkg/exf:
133      - add a little more diagnostic to exf_interp_read (in analogy to
134        mds_read_field, can be turned off with debugLevel < debugLevA=1)
135      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
136        ugly but fast by unrolling short inner loops, inserting a unroll=8
137        directive in routine lagran, and splitting a loop and making do while the
138        outermost loop (the latter requires the intoduction of index arrays)
139    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
140    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
141      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
142    o verification/seaice_obcs: updated for restart test and latest options
143    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
144      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
145      for now this is only available for the C-grid code and also within
146      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
147    
148    checkpoint59m
149    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
150      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
151    o gad_som : fix flux output (& diagnostics) to have same units as other  
152      advection scheme fluxes (was previously multiplied by deltaT).  
153    o added verification/seaice_obcs both to test seaice open boundaries
154      and to provide an example matlab scrpt for generating them
155    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
156    o pkg/salt_plume: clean up salt_plume_frac.F to
157      remove redundancy in PlumeMethod 1 and 4
158    o pkg/kpp: added saltplume diagnostics
159    o pkg/obcs and pkg/seaice:
160      - do not set uice and vice to zero when OB*icefile are unspecified
161      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
162      - moved seaice tracer obcs after call to seaice_growth
163    o pkg/salt_plume: added various options for salt plume depth
164      criterion and for vertical distribution of the salt
165    
166    checkpoint59l
167    o pkg/ptracers: new version of ptracers pickup:
168      read meta file and write only fields which are needed to restart.
169      ( same logic as main pickup file ; also using pickupStrictlyMatch )
170    o pkg/seaice:
171      - add timescale for melting due to warm mixed layer as a means of
172        setting SEAICE_availHeatFrac more conveniently
173      - add a CPP-flag/runtime parameter check for flooding algorithm
174      - reformulated availHeat in seaice_growth.F to be independent of AREA
175    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
176      unit changes
177    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
178    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
179      SX vector computer.
180    o pkg/seaice:
181      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
182        seaice forcing fields can now be read only through pkg/exf
183      - removed some unused halos
184    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
185    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
186      or U/VICE from U/VWIND before computing U/VSTRESS
187    
188    checkpoint59k
189    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
190      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
191    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
192      all experiments pass when compile with un-initialised var. checking option.
193    o added pkg/salt_plume
194    o script to test restart (for now, in MITgcm_contrib/jmc_script)
195    o pkg/seaice: new read/write pickup version.
196      read meta file and write only fields which are needed to restart.
197      ( same logic as main pickup file ; also using pickupStrictlyMatch )
198    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
199    o lab_sea.hb87: modify the domain & update output.hb87.txt :
200      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
201      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
202      process. Fixed here by closing the domain at the Northern boundary.
203    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
204    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
205      a set of consecutive levels in/from a 3-D array.
206    o pkg/ptracers:
207      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
208      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
209    
210    checkpoint59j
211    o in pkgs: dic, obcs, offline, rbcs:
212      standard way to compute coeff. for time interpolation between 2 time reccords
213      which retains full precision (& make results less dependent on compiler).
214      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
215    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
216      packages instead of reading ice cover and wind speed separately
217    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
218     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
219      to allow to compile customized code before the update)
220    o cleaning-up:
221      - fix CPP instruction syntax in pkg/obcs
222      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
223        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
224      - fix some threads issue in IO parts.
225    o pkg/dic:
226      - add tons of "_d 0" (--> much better testreports !)
227       and then update outputs of tutorial_global_oce_biogeo
228    o pkg/mom_fluxform:
229      add a special version of momentum advection intended to conserve momentum
230      next to a bathymetry step or a coastline edge. (default = off = #undef)
231    o new read/write pickup version:
232      - for now, only implemented for main (mdsio) pickup file.
233      - write out only what is needed to restart; merge pickup_nh , pickup_ph
234        and main pickup together.
235      - read meta file; read only what is needed to restart; stop if a field
236        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
237        if it make sense (even if the restart is not perfect).
238      - if no meta file, assume that pickup to read corresponds exactly to
239        a pickup that would currently be written.
240      - read pickup written in the old format (until checkpoint59i) if it
241        recognizes an old meta file (no field-list).
242      - add a meta file in exp. which starts from a pickup: 2 cases:
243        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
244         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
245        b) a meta file describing the content of the associated pickup file
246         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
247    o pkg/mdsio & pkg/rw:
248      - new routine to read a meta file ; new set of routine to read
249        Multiple-fields file (with meta file).
250    o added open boundary conditions capability for seaice
251        HSNOW, HSALT, UICE, and VICE
252    
253    checkpoint59i
254    o adjoint:
255      * fix multiDimAdvection adjoint
256        (partial recomputation problem by TAF for fVerT(:,:,kDown)
257        and comlev1 size definition (maxpass vs. max. number of tracers)
258      * verification/global_ocean.90x45x15 adjoint now tests
259        NLFS and multiDimAdvection using DST3 (=30)
260      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
261    o pkg/kpp: add "_d 0" to real constant (if missing);
262      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
263      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
264    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
265      for internal parameters related to restart process (formerly from PARAMS.h)
266      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
267    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
268      as argument. (only atm2d & obcs write_pickup have not yet been updated)
269    o pkg/monitor:
270      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
271      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
272      - account for deep Atmosphere factor and density factor (anelastic)
273    o added open boundary conditions capability for seaice HEFF and AREA
274    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
275      thermodynamics
276      - requires a little reorganization, which affects the testreport results
277        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
278        so that now the conservative form is tested
279      - add a few comments
280    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
281    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
282    o add new diagnostics to seaice: advective, diffusive fluxes (only for
283      multidim-advection, for scheme 2 they are not filled) and transports,
284      thermodynamic growth rates
285    o change units of EmPmR (inside the code, + within coupling interface)
286      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
287      Affects results @ truncation level (cg2d match) and update output of
288       experiments: lab_sea(6), global_ocean.90x40x15(10),
289      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
290      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
291      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
292      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
293    
294    checkpoint59h
295    o pkg/exf:
296      - improve vectorization by moving if-statement out of loops in
297        exf_mapfields, exf_radiation
298      - exf_bulkformulae.F: introduce 2D fields and vectorize code
299    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
300    o testreport:
301      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
302        monitor & update offline_exf_seaice exp. output.
303      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
304    o pkg/seaice:
305      - bug fix in the evp solver: boundary conditions were affected be
306        masking of zMax/zMin (changes results)
307      - minor bug fix in boundary conditions in seaice_calc_strainrates
308        (changes results for no_slip)
309      - seaice_lsr.F: make interpolation of eta dependent on boundaries
310      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
311      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
312        stress formulation and no-slip boundary conditions
313    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
314      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
315    o pkg/seaice: a first HSALT time stepping equation has been checked in
316    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
317      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
318      without requiring DO-IF statements
319    o pkg/thsice:
320      use continuous power-law function for partition of energy between lateral
321      melting/freezing and thinning/thickening ; old code using step function
322      still available with #undef THSICE_FRACEN_POWERLAW
323      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
324    o testreport: change AD testing : check against results/output_adm.txt
325      using same scripts as for forward test.
326    
327    checkpoint59g
328    o adjoint testing: in preparation for changing testreport:
329      - output format: cost and grad written on separated lines
330      - ad output results in directory "results" (instead of "results_ad")
331    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
332    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
333    o pkg/ecco: allow user defined cost function contributions
334    o testreport:
335      Allow to choose (per experiment) the list of tested output variables
336       and the main variable (used to issue a pass/FAIL ) ;
337      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
338      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
339      Also modify printing of summary:
340       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
341       b) echo the list of tested variables in the individual summary.txt of
342          each experiment.
343    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
344      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
345      (but still depend on the tile decompostion of the domain).
346    o pkg/seaice: change a discretization detail to make the B-grid code
347      "more symmetric". This change is likely to remove all "ridges/leads" that
348      where quasi-aligned with the grid in B-grid solutions. It may also be
349      the solution to the stress coupling issues with the B-grid.
350    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
351      remove .cvsignore from input dir. (since testreport no longer run here).
352    o pkg/thsice:
353     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
354     - fix reshaping of sea-ice just after advection:
355       melt all the ice only if ice-volume is too small.
356     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
357       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
358     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
359    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
360      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
361    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
362      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
363      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
364      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
365      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
366      -> update output.txt
367    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
368     this affects truncation error: -> update output.txt of exp:
369      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
370      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
371    
372    checkpoint59f
373    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
374    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
375      a bounded range (in forward mode)
376    o pkg/ecco, ctrl, autodiff and mom_common:
377     internal parameter controls, completements of implementations
378    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
379    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
380      (not seem any difference in testing results).
381    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
382       at face corners.
383    o pkg/generic_advdiff:
384     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
385      loop range indices for computing vertical advection tendency
386      and do the calculation in the interior only (no overlap) ;
387      for now, only implemented for SOM advection (to save CPU time).
388     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
389    o exch2 adjoint
390      First set of changes:
391      - add exch2 hand-written adjoint templates
392      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
393        This will require cleanup in pkg/autodiff/*.F
394        (changed routines currently kept separate in verif. code/)
395      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
396        that used to hide exch2 or cubed-sphere specific code
397        (commented via 'cph-exch2')
398    o pkg/seaice
399      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
400    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
401       output of global_ocean.cs32x15.thsice .
402    
403    checkpoint59e
404    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
405      for B-grid vector (not yet tested) and C-grid vector (<- only used
406      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
407    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
408      (#ifdef ALLOW_SALT_PLUME)
409    o gather_2d/scatter_2d: removed halo regions
410    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
411      scheme and the corresponding test case (under front_relax dir). For now,
412      only available with Skew-flux form and not yet tested in realistic set-up.
413      adjoint: store directives updated, but gradient checks deteriorated,
414      so maybe GM/Redi adjoint is now broken.
415    o seaice adjoint
416      * add AREA, HEFF, HSNOW as control variable
417        (should not change lab_sea results)
418      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
419    o pkg/seaice:
420      * added computation of saltFlux in seaice_growth;
421        For time being, sea ice salinity is assumed constant
422        contribution of snow flooding to freshening of sea ice is neglected.
423        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
424        defaults to 0.0 in order to maintain backward compatibility.
425        Typical values for SEAICE_salinity are 4 to 10 g/kg.
426      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
427      * added SEAICE_availHeatFrac, which specifies fraction of surface level
428        heat content used to melt or grow ice
429      * commented out cap of HICE: it helps keep ice thinner
430      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
431      * applied OBCS T/S mask to HEFFM sea ice mask
432    
433    checkpoint59d
434    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
435     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
436     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
437    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
438     and change default value of parameter "GM_Small_Number";
439     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
440       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
441       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
442    o pkg/ecco: cost function when applying pkg/smooth to controls
443    o pkg/ctrl: add forcingPrecond run time parameter
444    o pkg/seaice:
445     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
446     - fix bug in metric terms of u-equation in LSR solver (implicit part),
447       changes verification/lab_sea
448     - rearrange implicit part of u-equation in LSR solver to make it easier to
449       read, understand, and debug. This causes changes at the truncation level.
450     - fix (serious) bug in the boundary conditions (sign error in the implicit
451       part) of the LSR solver. Changes all LSR results.
452     - fixed problem with HSNOW initialization to avoid thick snow when AREA
453       is initilized with small values - does not change lab_sea results.
454     - added HsnowFile initialization capability
455    o pkg/smooth: addition to model/src and pkg/ctrl so allow
456     initialization of pkg/smooth and application to control vector
457    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
458    o dependencies: pkg/profiles requires pkg/cal
459    o pkg/profiles:
460     - added option ALLOW_PROFILES_GENERICGRID
461         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
462         that interpolation information (grid points and coefficients) is provided
463         within the netcdf input files.
464         -> sample matlab scripts can be found in MITgcm_contrib/gael
465         that allow you to prepare netcdf input files.
466     - also modified: cleaner include statements, cleaner error print statements,
467       cleaner stops when error, and more tests of the netcdf input files consistency.
468    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
469    o pkg/seaice:
470     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
471       requires a new routine: seaice_diagnostics_fill.F
472     - make sure that seaice does not move if not forced (pressure replacement
473       method, Hibler and Ip, 1995), changes results
474     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
475     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
476       It is turned off by default (=-1.), because it changes the results.
477     - make it possible to read AREA from a file, too.
478    
479    checkpoint59c
480    o add S/R and diagnostics for oceanic mixed-layer depth
481    o move GMRedi call after all vertical mixing schemes (including KPP)
482    o pkg/thsice:
483     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
484      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
485    o pkg/obcs:
486     - bug fix for balance code
487    o pkg/seaice:
488      - allow values of SEAICE_elasticParm > 1
489      - add new parameter SEAICE_evpTauRelax as an alternative
490        to SEAICE_elasticParm
491      - make lsr boundary conditions free slip (by default), changes result
492      - add code for no slip boundary conditions for lsr
493      - set minimum of zeta to zero (and not 4e8) (changes results)
494      - add a cap on AREA after advecting AREA if seaice_growth is not called
495    o change calculation of Visbeck K:
496      - no longer depend on tapering scheme; instead, compute slope (limited
497        by GM_maxSlope). this is equivalent to what was comuted before with
498        clipping or linear tappering.
499      - fix vertical averaging (wrong by 1/2 level)
500      - leave the old version (but will not be maintained) within
501        #ifdef OLD_VISBECK_CALC / #endif
502      - update output of exp. ideal_2D_oce
503    o change error catch in calc_r_star to improve vectorization
504    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
505      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
506    o adjoint:
507      Re-organized adjoint checkpointing according to Matt Mazloff
508      (but with modifs/completions/cleanups)
509      Storing is now bundled into large arrays to optimized I/O
510      (and second step in cleanup of the_main_loop)
511    
512    checkpoint59b
513    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
514      - export/import (between ocean & coupler) fields needed for ocean DIC.
515    o pkg/seaice:
516      - get rid of three more exchanges seaice_calc_viscosities (required
517        different loop boundaries in seaice_lsr and seaice_ocean_stress)
518      - bug fix in seaice_ocean_stress (update of lab_sea required)
519      - reduce loop boundaries to necessary minimum also in seaice_evp
520      - go back to the old way of computing deltaC/Z as the adjoint likes that
521        better
522    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
523      passive tracer to an Age Tracer) + update output.txt
524    o pkg/exf:
525      - implement A-grid / C-grid selection for wind-stress input files.
526      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
527      for now, in exf_bulk_largeyeager04.F only :
528      - change implementation for case where windspeed + 2. components wind-stress
529        are read-in. AND use rhoConstFresh to convert evap.
530    o pkg/seaice:
531      - use correct EXCH_UV for wind-forcing (on A-grid).
532      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
533        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
534    o pkg/exf:
535      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
536      EXF_INTERPOLATION:
537      - merge global_with_exf/code version of exf_interp_read.F
538        to the main code ;
539      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
540        reading the file ; Important: This options needs to be defined to recover
541        previous code.
542        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
543      - no longer loose real*8 precision along the way when using exf_iprec=64.
544    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
545      - change discretisation of evp-solver in order to avoid another exchange
546        (changes lab_sea) and clean up a little
547      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
548        help the adjoint (this also changes the results slightly)
549      - add a few "_d 0" where they had been missing in seaice_evp.F
550      - cleaning up: remove unused seaice_calc_rhs.F
551    o pkg/exf: some cleaning-up:
552      - change various "constants" into runtime parameters
553      - cleaned-up Large&Yeager04 routine which should eventually
554        replace exf_bulkformulae.F (changed names of S/R and CPP)
555        and merged various ALLOW_ATM_WIND options
556     only used with thsice pkg (in thsice_get_exf.F):
557      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
558        which are used when useStabilityFct_overIce=TRUE (= the default)
559      - change default values of ice & snow emissivity and scale downward LW
560        by ice & snow emissivity.
561    o pkg/thsice:
562     fix few little problems, in thsice_calc_thickn.F:
563      - growth vertically (and not laterally) if iceFrac == iceMaskMax
564      - melt only laterally if hIce < hThinIce (as the comments say)
565      and in thsice_extend.F:
566      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
567      - start to form ice as soon as the minimum ice-volume is reachable.
568     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
569      and cpl_aim+ocn
570    o pkg/kpp
571     - move computation of surface related input fields to KPP into a new
572       subroutine kpp_forcing_surf.F
573     - remove wrong (within bi,bj loops) EXCH calls.
574     - little cleaning (add argument myThid in last position, cvs header ...)
575     - for now, fix conservation problem by exchanging KPPviscAz (may not
576       be the best fix)
577    o pkg/seaice
578     - check for inconsistent evp parameter/cpp-flag combination
579     - remove leftover errIO flat for obsolete name list error handling
580    o OpenAD
581     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
582    
583    checkpoint59a
584    o pkg/seaice: some parameter clarifications and a little bit of clean up
585    o pkg/thsice: rename run-time parameters:
586       himin       -> hIceMin
587       himin0      -> hThinIce
588       hihig       -> hThickIce
589       i0          -> i0swFrac
590       transCoef   -> bMeltCoef
591       frac_energy -> fracMelting
592      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
593       with default values (for now) that do not change the results.
594      remove old version of thsice vars advection in pkg/seaice.
595    o in FFIELDS.h:
596      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
597      - make pLoad & sIceLoad always available (but still only used if
598         ATMOSPHERIC_LOADING is #define).
599    o pkg/kpp: replaced _KPP_RL with _RL
600    o bug fixes for vertical diffusivity computations when both KPP and
601        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
602        are no longer updating the vertical diffusivity array
603        (passed as argument) but are (re-) setting those arrays.
604    o pkg/seaice: fix bug in evp solver, while doing that
605      - change (improve?) discretization of stress computations for both
606        cgrid-lsr and evp solver
607      - add a new routine to compute strain rates
608      - the above changes lab_sea results
609      - add no slip conditions for evp solver (off by default), lsr-version
610        may follow
611      - fix exchange for shear at Z-points (does not change lab_sea)
612      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
613        (to force the user to pick a time step since there is not "safe" way
614        of choosing it)
615      - add principal stress diagnostics
616      - rearrange fields for evp a little to avoid having to call a: too many
617        exchanges and b: exchanges for stress trensor components which we do
618        not have.
619      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
620        of evp, complete rewrite for lsr case (latter is does not yet work
621        in all cases)
622    o pkg/kpp: add code to have mixing in shelf ice caverns
623      - add myThid to all kpp routines (long overdue)
624    
625    checkpoint59
626    o pkg/exf:
627      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
628        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
629      - move exf header files from lower_case.h to UPPER_CASE.h ;
630        add missing cvs Header & Name
631      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
632      - add namelist param. selectStressGridPosition, exf_monFreq
633      - retire many _CLIM routines, and remove data.exf_clim
634        + params moved to data.exf
635        + climsst, climsss now handled by exf_set_gen, i.e.
636          climss?period=0 refers to constant field,
637          climss?period=-12 to monthly forcing
638      - split up namelists in data.exf
639    o pkg/seaice:
640      - remove seaice_exch and seaice_exch_uv
641      - remove superfluous exchange of theta
642      - add myThid to seaice_budget_ocean/ice
643      - add new interface for atmospheric wind forcing (C-grid only)
644        + new routine
645        + two new field (taux, tauy for stress over ice)
646        + removed one global field (DAIRN) for C-grid case only
647    o pkg/thsise
648      - 2nd set of modifs for thsice adjoint in conjunction with exf
649    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
650    
651    checkpoint58y_post
652    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
653      vertical diffusivity, similar to that in MOM4; turned on using
654      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
655      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
656    o Added capability for 3D specification of background vertical diffusion
657      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
658      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
659      "data" file that contains the 3D vertical diffusivity coefficients.
660    o ice dynamics (pkg/seaice) with thsice thermodynamics:
661      - add code within pkg thsice to advect & diffuse sea-ice fields
662      similar to (and will replace) what has been added in  seaice_advdiff.F,
663      but: - conserving Mass, Heat & Salt.
664           - better when using non-linear advection scheme (not yet fully tested)
665           - can also be used in atmospheric set-up (for now, only the diffusion).
666    
667    checkpoint58x_post
668    o IO option for global-file compact format:
669      - add options when generating topology (utils/exch2/matlab-topology-generator)
670      - add I/O capability (pkg/mdsio).
671      - adapt utils/matlab/rdmds.m to read this format.
672      for now long-line format not yet supported by pkg/mdsio (& exch2).
673    o shelfice: add a few diagnostics
674    
675    checkpoint58w_post
676    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
677      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
678      (and replace horiVertRatio in NH code).
679      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
680                         and tutorial_plume_on_slope (sensitive to truncation)
681    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
682      directly to drive seaice model (C-grid only)
683    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
684     - reintroduce computation of wind from stress,
685     - compute tau (in exf_bulkformulae.F) from windstress averaged to
686       mass points to avoid tau = 0
687     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
688    o rdmnc.m: make it work with "global" files created with gluemnc
689    o rdmnc.m : some improvements in dealing with singleton dimension
690      (tested on all testreport mnc output files).
691    o genmake2: disable pkg/profiles if netcdf test fails.
692    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
693    o move call to cal_readparms up to make calendar parameters/variable available
694      to all packages
695    
696    checkpoint58v_post
697    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
698      useDynP_inEos_Zc tested.
699    o pkg/exf: changes to properly interpolate/mask/scale initial fields
700    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
701      and portions thereof.  See read_cs.txt for description and examples.
702    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
703      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
704      following the great-circle arc between those 2 points.
705    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
706      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
707    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
708     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
709     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
710     - still needs work (not working with some options ; efficiency to improve)
711       and serious testing.
712     - use this scheme for temperature & salinity in 2 advection test exp.:
713       advect_xy & advect_xz, respectively.
714    
715    checkpoint58u_post
716    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
717    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
718    o testreport: add option "-skipdir" to skip some test.
719    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
720      momentum calculation.
721    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
722    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
723      remove checkpoint.F and the_correction_step.F (no longer used);
724      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
725    o add option (linFSConserveTr) to correct for tracer source/sink due to
726      Linear Free surface
727    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
728    o pkg/thsice: fix reading mnc-pickups
729    
730    checkpoint58t_post
731    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
732    o pkg/mdsio:
733     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
734       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
735       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
736     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
737     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
738       either MDS_READ_FIELD or MDS_WRITE_FIELD )
739     - new S/R (to replace MDSWRITEMETA), which allows to write more
740       informations (variable names, time ...) to meta files.
741     - modify rdmds.m to give back the meta file content.
742    o pkg/diagnostics: change vertical interpolation to be safer, and more
743       flexible (define p-levels to interpolate to in data.diagnostics);
744      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
745       diagnostic pointer.
746    o pkg/seaice: more cleaning up of seaice_growth, added many comments
747    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
748    o fix multi-category seaice:
749     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
750       SEAICE_MULTICATEGORY
751     - fix short wave heat flux
752    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
753       and allow to use EVP solver. Change forward lab_sea: test both EVP
754       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
755    o Initial check-in of lab_sea adjoint
756      (very similar to natl_box_adjoint/code_seaice)
757      * used C-grid and EVP solver
758      * used KPP, GM/Redi
759      * uses inAdExact=.TRUE.
760      * gradient checks fail for both ADM and TLM
761        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
762        f.d. gradients actually seem more problematic than ADM, TLM gradients;
763        issue is related to forward mismatch between g77 an ifort
764    o pkg/seaice: overhaul of thermodynamics
765     - growth.F and groatb.F are replaced by new routine seaice_growth.F
766     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
767     - move a few global fields out of SEAICE.h into seaice_growth.F and
768       make them 2D (FICE/QNETO/ ...)
769     - remove FO (it is the same as QNETO)
770     - introduce a few local fields to avoid modifying external fields such
771       as atemp, etc.
772    
773    checkpoint58s_post
774    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
775      changed exf_set_gen.F so that
776        genperiod=0 means input file is one time-constant field and
777        genperiod=-12 means input file contains 12 monthly means
778    o CG2D: use pre-computed solver main-diagonal (stored in common block);
779      this affects truncation error ; generate new output file for exp. which
780      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
781        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
782        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
783        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
784        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
785        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
786    o start implementation of deep-atmosphere and anelastic formulation
787    o verification: remove 2nd copy of input files and use script "prepare_run"
788      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
789    o mom_common/vecinv/fluxform: fix a few initialisation isssues
790    o profiles: fix for multithreaded case
791    
792    o diagnostics: rename few diags:
793      s/'PRESSURE'/'RCENTER '/g
794      s/'TICE    '/'oceFreez'/g
795      s/'TAUX    '/'oceTAUX '/g
796      s/'TAUY    '/'oceTAUY '/g
797      s/'SWFLUX  '/'oceQsw  '/g
798      s/DIFx/DFxE/g
799      s/DIFy/DFyE/g
800      and add few ocean-forcing diagnostics:
801      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
802    o modifications to pkg/seaice/growth.F and budget.F, which change results of
803      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
804      as actual snow thickness.  It now refers everywhere to effective snow
805      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
806    
807    checkpoint58r_post
808    o modifications to pkg/seaice/growth.F, which change results of
809      lab_sea experiment: fixes pertain to melting snow over open water, to
810      masking EVAP under sea ice, and to using the correct AREA variable for
811      computations of EVAP, PRECIP, HSNOW, and GHEFF
812    o add ability to read bathy, salt, and theta using MNC (off by def)
813    o add flooding algorithm and advection of HSNOW for pkg/seaice;
814      both are turned off by default and do no change any results
815    o seaice advection with pkg/thsice: a step toward the use of non-linear
816      advection scheme, but #ifdef or commented out for now (requires more EXCH).
817    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
818      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
819      in natl_box (affects results @ truncation level: update output.txt)
820    o multi-threading and IO:
821      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
822      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
823        (needed to work with SingleCpuIO): tested in all verif. exp.
824    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
825      affects the results (but none of the verification test uses this scheme).
826    o Adding some pkg/diagnostics capability to pkg/seaice
827      (will certainly be subject to changes)
828    o ctrl: adding new control variables:
829      lwflux, lwdown, evap, snowprecip, apressure, runoff
830    
831    checkpoint58q_post
832    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
833      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
834      high_res_cube configuration by 4% on Columbia.
835    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
836      add (in global_with_exf/code) a version of EXF_INTERP_READ without
837      dynamical allocation (seems to work in multi-threaded).
838    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
839      single CPU io) so that TAF does not have to see EESUPPORT.h
840    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
841    
842    checkpoint58p_post
843    o obcs: stop if obcs is used with useCDscheme = .true.
844    o shelfice:
845     - fix a sign error so that no slip at shelfice interface works
846     - remove stop for combination non-hydrostatic code and shelfice. That does
847       not mean, that the results are correct, but at least they are numerically
848       stable
849    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
850    o added adjoint exch routined for all exch*3d* routines
851      and updated flow directives
852    
853    checkpoint58o_post
854    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
855      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
856    o change controling S/R for writing pickup file (new S/R do_write_pickup)
857      and clean-up reading/writing of pickup files.
858    o fix local version of read/write pickup (NH part) in rotating_tank/code
859    o simplify EXCH interface:
860     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
861     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
862    o added the regrid package
863    o shelfice:
864     - add a simple boundary layer scheme to reduce noise
865     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
866    
867    checkpoint58n_post
868    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
869       local variable (not in common block).
870    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
871      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
872      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
873        to work with SingleCpuIO.
874    o add "_d 0" to real constant of pkg/cfc subroutines ;
875       update exp. cfc_exemple & tutorial_cfc_offline output files.
876    o multi-threading and IO:
877      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
878        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
879      - barrier before and after reading.
880      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
881      - avoid using MDS_WRITELOCAL for LAND pkg output.
882      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
883        common-block variables ; Allows multi-threading with master-thread IO.
884    o change default MAX_NO_THREADS from 32 to 4 ;
885      and stop cleanly when MAX_NO_THREADS is too small.
886    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
887    
888    checkpoint58m_post
889    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
890       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
891    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
892       keep global_ocean.90x40x15 (for AD testing) with former secondary test
893       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
894    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
895        add MITgcm_tutorials (= code + all the tutorials)
896    o ecco, option to compute cost for total ssh (mean+anom)
897    o consistent with addition of ptracer and ssh in pkg/profiles
898  o profiles: adding ptracer and ssh  o profiles: adding ptracer and ssh
899  o testreport: change multi-test output-file name  o testreport: change multi-test output-file name
900    (from output.txt.{name} to output.{name}.txt)    (from output.txt.{name} to output.{name}.txt)
901  o profiles: now ok for mutli-threaded case  o profiles: now ok for mutli-tiles case
902  o seaice: add 4 parameters for different advection schemes for area,  o seaice: add 4 parameters for different advection schemes for area,
903    (effective) seaice thickness, enthalphy, and snow height. Their default    (effective) seaice thickness, enthalphy, and snow height. Their default
904    is the standard parameter SEAICEadvScheme    is the standard parameter SEAICEadvScheme

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