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revision 1.697 by heimbach, Wed Jul 12 00:01:53 2006 UTC revision 1.980 by jmc, Thu Apr 24 19:39:28 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 remove "exp5" (replaced by tutorial_deep_convection).
8    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
9      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
10      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
11      --> changes results in dome, exp4, internal_wave, seaice_obcs, and
12      tutorial_plume_on_slope.
13    o tutorial_deep_convection :
14      update the set-up and increase resolution and domain size ; start
15      from pseudo initial conditions = output at t=120mn in order to see
16      something happening when running testreport.
17    o pkg/seaice: add os7mp as an advection scheme
18                  add check for advection schemes
19                  add a flag for restoring T and S underneath sea ice
20    o pkg/my82: add netcdf-support and diagnostics
21    o thsice pkg:
22      - Now hsMax limits snow height by turning it into ice following
23        flooding scheme (and now conserving energy)
24      - Slight rewriting of the formula in thsice_calc_thick.F
25      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
26      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
27    
28    checkpoint59p
29    o gchem / dic / cfc :
30      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
31      - add new parameter files: "data.dic" & "data.cfc" ;
32      - various re-arrangement in initialisation & header file ;
33      - fix tutorial_global_oce_biogeo for multi-threaded test.
34    o pkg/dic: test for "pickup_dic" file when restarting ;
35      if no pickup-file, can restart with a re-initialised pH (same as it did
36      before) providing pickupStrictlyMatch is set to False.
37    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
38      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
39    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
40      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
41    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
42     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
43       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
44    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
45       scheme to use for vorticty-term ;
46     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
47       (with default selectVortScheme, return to original discretisation)
48     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
49    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
50    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
51      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
52      also fix diagnostics VISCAHW & VISCA4W.
53    
54    checkpoint59o
55    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
56    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
57      move a few statemens out the main loop into separate loops
58    o pkg/shelfice:
59      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
60        (kg/m^2/s), does not break tests, because in verification/isomip,
61        rhoConstFresh=rhoConst (by accident)
62      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
63      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
64        new file model/src/seawater.F, so that they are available for all pkgs.
65      - convert potential temperature into in-situ temperature. This changes the
66        isomip tests => update tests
67    o add a flag writePickupAtEnd (default=true) to be able to suppress
68      writing a pickup at the last timestep
69    o tools/mpack-1.6 :
70      - disable automake (not working) and autoconf (not needed).
71      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
72        also cleaner with much less compilation warnings.
73    o pkg/profiles:
74      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
75      (for "less than 32 characters name" compiler requirement)
76    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
77      conditions that have a different sampling frequency than S/T/U/V obcs
78    o pkg/diagnostics (stats-diags):
79      - fix global Min/Max in case 1 processor get only empty tiles
80    o genmake2: replace (4 times)
81         make genmake_tc_1.o >> genmake_warnings 2>&1
82      with
83         COMM="$CC $CFLAGS -c genmake_tc_1.c"
84         echo $COMM >> genmake_warnings
85         $COMM >> genmake_warnings 2>&1
86      to make genmake2 always see the value of CC as specified in the optfile.
87    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
88      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
89      - modify verification advect_cs test to test SOM-advection on CS-grid.
90    o pkg/ctrl:
91      - Rewrite of ctrl_map_ini_ecco.F,
92        introducing a generic routine (ctrl_map_ini_gen.F).
93      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
94    
95    checkpoint59n
96    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
97      number in dedicate array "hdiag":
98      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
99        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
100      - many small changes (integer format) for large number of diagnostics
101      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
102        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
103    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
104      usingSphericalGrid, this allows to define the rotated grid coordinates
105      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
106      geographical coordinates according to the inverse of the rotation defined
107      by the Euler angles, so that Coriolis parameter and online-interpolation by
108      exf works with the geographical coordinates on XC/YC/XG/YG.
109      Naturally, this feature does not work with all packages, so some
110      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
111      profiles), because there the coordinates are assumed to be regular
112      spherical grid coordinates.
113    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
114      - introduce isopycnal diffusion coefficient control.
115    o tools/adjoint_options:
116      - additional control vector components.
117    o pkg/mnc: have mnc create marginally meaning full coordinate variables
118      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
119    o pkg/mypackage:
120      - add example of read/write pickup for state-var ;
121      - add entry points to the main code for state-vars diags & write-pickup.
122    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
123      transitions for useExfYearlyFields
124      - add new subroutine that determines the file to read from for
125        use*YearlyFields = .TRUE. and .FALSE.
126      - add a verification experiment to global_with_exf that tests
127        useExfYearlyFields with USE_EXF_INTERPOLATION defined
128    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
129      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
130      subroutines (which could be generated from a template, because they are
131      almost identical), for now they are included in obcs_prescribe_read.F for
132      simplicity
133    o pkg/exf:
134      - add a little more diagnostic to exf_interp_read (in analogy to
135        mds_read_field, can be turned off with debugLevel < debugLevA=1)
136      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
137        ugly but fast by unrolling short inner loops, inserting a unroll=8
138        directive in routine lagran, and splitting a loop and making do while the
139        outermost loop (the latter requires the intoduction of index arrays)
140    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
141    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
142      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
143    o verification/seaice_obcs: updated for restart test and latest options
144    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
145      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
146      for now this is only available for the C-grid code and also within
147      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
148    
149    checkpoint59m
150    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
151      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
152    o gad_som : fix flux output (& diagnostics) to have same units as other  
153      advection scheme fluxes (was previously multiplied by deltaT).  
154    o added verification/seaice_obcs both to test seaice open boundaries
155      and to provide an example matlab scrpt for generating them
156    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
157    o pkg/salt_plume: clean up salt_plume_frac.F to
158      remove redundancy in PlumeMethod 1 and 4
159    o pkg/kpp: added saltplume diagnostics
160    o pkg/obcs and pkg/seaice:
161      - do not set uice and vice to zero when OB*icefile are unspecified
162      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
163      - moved seaice tracer obcs after call to seaice_growth
164    o pkg/salt_plume: added various options for salt plume depth
165      criterion and for vertical distribution of the salt
166    
167    checkpoint59l
168    o pkg/ptracers: new version of ptracers pickup:
169      read meta file and write only fields which are needed to restart.
170      ( same logic as main pickup file ; also using pickupStrictlyMatch )
171    o pkg/seaice:
172      - add timescale for melting due to warm mixed layer as a means of
173        setting SEAICE_availHeatFrac more conveniently
174      - add a CPP-flag/runtime parameter check for flooding algorithm
175      - reformulated availHeat in seaice_growth.F to be independent of AREA
176    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
177      unit changes
178    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
179    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
180      SX vector computer.
181    o pkg/seaice:
182      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
183        seaice forcing fields can now be read only through pkg/exf
184      - removed some unused halos
185    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
186    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
187      or U/VICE from U/VWIND before computing U/VSTRESS
188    
189    checkpoint59k
190    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
191      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
192    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
193      all experiments pass when compile with un-initialised var. checking option.
194    o added pkg/salt_plume
195    o script to test restart (for now, in MITgcm_contrib/jmc_script)
196    o pkg/seaice: new read/write pickup version.
197      read meta file and write only fields which are needed to restart.
198      ( same logic as main pickup file ; also using pickupStrictlyMatch )
199    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
200    o lab_sea.hb87: modify the domain & update output.hb87.txt :
201      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
202      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
203      process. Fixed here by closing the domain at the Northern boundary.
204    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
205    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
206      a set of consecutive levels in/from a 3-D array.
207    o pkg/ptracers:
208      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
209      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
210    
211    checkpoint59j
212    o in pkgs: dic, obcs, offline, rbcs:
213      standard way to compute coeff. for time interpolation between 2 time reccords
214      which retains full precision (& make results less dependent on compiler).
215      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
216    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
217      packages instead of reading ice cover and wind speed separately
218    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
219     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
220      to allow to compile customized code before the update)
221    o cleaning-up:
222      - fix CPP instruction syntax in pkg/obcs
223      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
224        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
225      - fix some threads issue in IO parts.
226    o pkg/dic:
227      - add tons of "_d 0" (--> much better testreports !)
228       and then update outputs of tutorial_global_oce_biogeo
229    o pkg/mom_fluxform:
230      add a special version of momentum advection intended to conserve momentum
231      next to a bathymetry step or a coastline edge. (default = off = #undef)
232    o new read/write pickup version:
233      - for now, only implemented for main (mdsio) pickup file.
234      - write out only what is needed to restart; merge pickup_nh , pickup_ph
235        and main pickup together.
236      - read meta file; read only what is needed to restart; stop if a field
237        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
238        if it make sense (even if the restart is not perfect).
239      - if no meta file, assume that pickup to read corresponds exactly to
240        a pickup that would currently be written.
241      - read pickup written in the old format (until checkpoint59i) if it
242        recognizes an old meta file (no field-list).
243      - add a meta file in exp. which starts from a pickup: 2 cases:
244        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
245         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
246        b) a meta file describing the content of the associated pickup file
247         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
248    o pkg/mdsio & pkg/rw:
249      - new routine to read a meta file ; new set of routine to read
250        Multiple-fields file (with meta file).
251    o added open boundary conditions capability for seaice
252        HSNOW, HSALT, UICE, and VICE
253    
254    checkpoint59i
255    o adjoint:
256      * fix multiDimAdvection adjoint
257        (partial recomputation problem by TAF for fVerT(:,:,kDown)
258        and comlev1 size definition (maxpass vs. max. number of tracers)
259      * verification/global_ocean.90x45x15 adjoint now tests
260        NLFS and multiDimAdvection using DST3 (=30)
261      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
262    o pkg/kpp: add "_d 0" to real constant (if missing);
263      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
264      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
265    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
266      for internal parameters related to restart process (formerly from PARAMS.h)
267      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
268    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
269      as argument. (only atm2d & obcs write_pickup have not yet been updated)
270    o pkg/monitor:
271      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
272      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
273      - account for deep Atmosphere factor and density factor (anelastic)
274    o added open boundary conditions capability for seaice HEFF and AREA
275    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
276      thermodynamics
277      - requires a little reorganization, which affects the testreport results
278        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
279        so that now the conservative form is tested
280      - add a few comments
281    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
282    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
283    o add new diagnostics to seaice: advective, diffusive fluxes (only for
284      multidim-advection, for scheme 2 they are not filled) and transports,
285      thermodynamic growth rates
286    o change units of EmPmR (inside the code, + within coupling interface)
287      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
288      Affects results @ truncation level (cg2d match) and update output of
289       experiments: lab_sea(6), global_ocean.90x40x15(10),
290      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
291      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
292      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
293      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
294    
295    checkpoint59h
296    o pkg/exf:
297      - improve vectorization by moving if-statement out of loops in
298        exf_mapfields, exf_radiation
299      - exf_bulkformulae.F: introduce 2D fields and vectorize code
300    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
301    o testreport:
302      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
303        monitor & update offline_exf_seaice exp. output.
304      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
305    o pkg/seaice:
306      - bug fix in the evp solver: boundary conditions were affected be
307        masking of zMax/zMin (changes results)
308      - minor bug fix in boundary conditions in seaice_calc_strainrates
309        (changes results for no_slip)
310      - seaice_lsr.F: make interpolation of eta dependent on boundaries
311      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
312      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
313        stress formulation and no-slip boundary conditions
314    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
315      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
316    o pkg/seaice: a first HSALT time stepping equation has been checked in
317    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
318      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
319      without requiring DO-IF statements
320    o pkg/thsice:
321      use continuous power-law function for partition of energy between lateral
322      melting/freezing and thinning/thickening ; old code using step function
323      still available with #undef THSICE_FRACEN_POWERLAW
324      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
325    o testreport: change AD testing : check against results/output_adm.txt
326      using same scripts as for forward test.
327    
328    checkpoint59g
329    o adjoint testing: in preparation for changing testreport:
330      - output format: cost and grad written on separated lines
331      - ad output results in directory "results" (instead of "results_ad")
332    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
333    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
334    o pkg/ecco: allow user defined cost function contributions
335    o testreport:
336      Allow to choose (per experiment) the list of tested output variables
337       and the main variable (used to issue a pass/FAIL ) ;
338      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
339      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
340      Also modify printing of summary:
341       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
342       b) echo the list of tested variables in the individual summary.txt of
343          each experiment.
344    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
345      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
346      (but still depend on the tile decompostion of the domain).
347    o pkg/seaice: change a discretization detail to make the B-grid code
348      "more symmetric". This change is likely to remove all "ridges/leads" that
349      where quasi-aligned with the grid in B-grid solutions. It may also be
350      the solution to the stress coupling issues with the B-grid.
351    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
352      remove .cvsignore from input dir. (since testreport no longer run here).
353    o pkg/thsice:
354     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
355     - fix reshaping of sea-ice just after advection:
356       melt all the ice only if ice-volume is too small.
357     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
358       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
359     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
360    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
361      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
362    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
363      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
364      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
365      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
366      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
367      -> update output.txt
368    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
369     this affects truncation error: -> update output.txt of exp:
370      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
371      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
372    
373    checkpoint59f
374    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
375    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
376      a bounded range (in forward mode)
377    o pkg/ecco, ctrl, autodiff and mom_common:
378     internal parameter controls, completements of implementations
379    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
380    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
381      (not seem any difference in testing results).
382    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
383       at face corners.
384    o pkg/generic_advdiff:
385     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
386      loop range indices for computing vertical advection tendency
387      and do the calculation in the interior only (no overlap) ;
388      for now, only implemented for SOM advection (to save CPU time).
389     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
390    o exch2 adjoint
391      First set of changes:
392      - add exch2 hand-written adjoint templates
393      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
394        This will require cleanup in pkg/autodiff/*.F
395        (changed routines currently kept separate in verif. code/)
396      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
397        that used to hide exch2 or cubed-sphere specific code
398        (commented via 'cph-exch2')
399    o pkg/seaice
400      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
401    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
402       output of global_ocean.cs32x15.thsice .
403    
404    checkpoint59e
405    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
406      for B-grid vector (not yet tested) and C-grid vector (<- only used
407      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
408    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
409      (#ifdef ALLOW_SALT_PLUME)
410    o gather_2d/scatter_2d: removed halo regions
411    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
412      scheme and the corresponding test case (under front_relax dir). For now,
413      only available with Skew-flux form and not yet tested in realistic set-up.
414      adjoint: store directives updated, but gradient checks deteriorated,
415      so maybe GM/Redi adjoint is now broken.
416    o seaice adjoint
417      * add AREA, HEFF, HSNOW as control variable
418        (should not change lab_sea results)
419      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
420    o pkg/seaice:
421      * added computation of saltFlux in seaice_growth;
422        For time being, sea ice salinity is assumed constant
423        contribution of snow flooding to freshening of sea ice is neglected.
424        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
425        defaults to 0.0 in order to maintain backward compatibility.
426        Typical values for SEAICE_salinity are 4 to 10 g/kg.
427      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
428      * added SEAICE_availHeatFrac, which specifies fraction of surface level
429        heat content used to melt or grow ice
430      * commented out cap of HICE: it helps keep ice thinner
431      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
432      * applied OBCS T/S mask to HEFFM sea ice mask
433    
434    checkpoint59d
435    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
436     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
437     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
438    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
439     and change default value of parameter "GM_Small_Number";
440     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
441       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
442       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
443    o pkg/ecco: cost function when applying pkg/smooth to controls
444    o pkg/ctrl: add forcingPrecond run time parameter
445    o pkg/seaice:
446     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
447     - fix bug in metric terms of u-equation in LSR solver (implicit part),
448       changes verification/lab_sea
449     - rearrange implicit part of u-equation in LSR solver to make it easier to
450       read, understand, and debug. This causes changes at the truncation level.
451     - fix (serious) bug in the boundary conditions (sign error in the implicit
452       part) of the LSR solver. Changes all LSR results.
453     - fixed problem with HSNOW initialization to avoid thick snow when AREA
454       is initilized with small values - does not change lab_sea results.
455     - added HsnowFile initialization capability
456    o pkg/smooth: addition to model/src and pkg/ctrl so allow
457     initialization of pkg/smooth and application to control vector
458    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
459    o dependencies: pkg/profiles requires pkg/cal
460    o pkg/profiles:
461     - added option ALLOW_PROFILES_GENERICGRID
462         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
463         that interpolation information (grid points and coefficients) is provided
464         within the netcdf input files.
465         -> sample matlab scripts can be found in MITgcm_contrib/gael
466         that allow you to prepare netcdf input files.
467     - also modified: cleaner include statements, cleaner error print statements,
468       cleaner stops when error, and more tests of the netcdf input files consistency.
469    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
470    o pkg/seaice:
471     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
472       requires a new routine: seaice_diagnostics_fill.F
473     - make sure that seaice does not move if not forced (pressure replacement
474       method, Hibler and Ip, 1995), changes results
475     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
476     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
477       It is turned off by default (=-1.), because it changes the results.
478     - make it possible to read AREA from a file, too.
479    
480    checkpoint59c
481    o add S/R and diagnostics for oceanic mixed-layer depth
482    o move GMRedi call after all vertical mixing schemes (including KPP)
483    o pkg/thsice:
484     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
485      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
486    o pkg/obcs:
487     - bug fix for balance code
488    o pkg/seaice:
489      - allow values of SEAICE_elasticParm > 1
490      - add new parameter SEAICE_evpTauRelax as an alternative
491        to SEAICE_elasticParm
492      - make lsr boundary conditions free slip (by default), changes result
493      - add code for no slip boundary conditions for lsr
494      - set minimum of zeta to zero (and not 4e8) (changes results)
495      - add a cap on AREA after advecting AREA if seaice_growth is not called
496    o change calculation of Visbeck K:
497      - no longer depend on tapering scheme; instead, compute slope (limited
498        by GM_maxSlope). this is equivalent to what was comuted before with
499        clipping or linear tappering.
500      - fix vertical averaging (wrong by 1/2 level)
501      - leave the old version (but will not be maintained) within
502        #ifdef OLD_VISBECK_CALC / #endif
503      - update output of exp. ideal_2D_oce
504    o change error catch in calc_r_star to improve vectorization
505    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
506      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
507    o adjoint:
508      Re-organized adjoint checkpointing according to Matt Mazloff
509      (but with modifs/completions/cleanups)
510      Storing is now bundled into large arrays to optimized I/O
511      (and second step in cleanup of the_main_loop)
512    
513    checkpoint59b
514    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
515      - export/import (between ocean & coupler) fields needed for ocean DIC.
516    o pkg/seaice:
517      - get rid of three more exchanges seaice_calc_viscosities (required
518        different loop boundaries in seaice_lsr and seaice_ocean_stress)
519      - bug fix in seaice_ocean_stress (update of lab_sea required)
520      - reduce loop boundaries to necessary minimum also in seaice_evp
521      - go back to the old way of computing deltaC/Z as the adjoint likes that
522        better
523    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
524      passive tracer to an Age Tracer) + update output.txt
525    o pkg/exf:
526      - implement A-grid / C-grid selection for wind-stress input files.
527      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
528      for now, in exf_bulk_largeyeager04.F only :
529      - change implementation for case where windspeed + 2. components wind-stress
530        are read-in. AND use rhoConstFresh to convert evap.
531    o pkg/seaice:
532      - use correct EXCH_UV for wind-forcing (on A-grid).
533      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
534        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
535    o pkg/exf:
536      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
537      EXF_INTERPOLATION:
538      - merge global_with_exf/code version of exf_interp_read.F
539        to the main code ;
540      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
541        reading the file ; Important: This options needs to be defined to recover
542        previous code.
543        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
544      - no longer loose real*8 precision along the way when using exf_iprec=64.
545    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
546      - change discretisation of evp-solver in order to avoid another exchange
547        (changes lab_sea) and clean up a little
548      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
549        help the adjoint (this also changes the results slightly)
550      - add a few "_d 0" where they had been missing in seaice_evp.F
551      - cleaning up: remove unused seaice_calc_rhs.F
552    o pkg/exf: some cleaning-up:
553      - change various "constants" into runtime parameters
554      - cleaned-up Large&Yeager04 routine which should eventually
555        replace exf_bulkformulae.F (changed names of S/R and CPP)
556        and merged various ALLOW_ATM_WIND options
557     only used with thsice pkg (in thsice_get_exf.F):
558      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
559        which are used when useStabilityFct_overIce=TRUE (= the default)
560      - change default values of ice & snow emissivity and scale downward LW
561        by ice & snow emissivity.
562    o pkg/thsice:
563     fix few little problems, in thsice_calc_thickn.F:
564      - growth vertically (and not laterally) if iceFrac == iceMaskMax
565      - melt only laterally if hIce < hThinIce (as the comments say)
566      and in thsice_extend.F:
567      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
568      - start to form ice as soon as the minimum ice-volume is reachable.
569     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
570      and cpl_aim+ocn
571    o pkg/kpp
572     - move computation of surface related input fields to KPP into a new
573       subroutine kpp_forcing_surf.F
574     - remove wrong (within bi,bj loops) EXCH calls.
575     - little cleaning (add argument myThid in last position, cvs header ...)
576     - for now, fix conservation problem by exchanging KPPviscAz (may not
577       be the best fix)
578    o pkg/seaice
579     - check for inconsistent evp parameter/cpp-flag combination
580     - remove leftover errIO flat for obsolete name list error handling
581    o OpenAD
582     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
583    
584    checkpoint59a
585    o pkg/seaice: some parameter clarifications and a little bit of clean up
586    o pkg/thsice: rename run-time parameters:
587       himin       -> hIceMin
588       himin0      -> hThinIce
589       hihig       -> hThickIce
590       i0          -> i0swFrac
591       transCoef   -> bMeltCoef
592       frac_energy -> fracMelting
593      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
594       with default values (for now) that do not change the results.
595      remove old version of thsice vars advection in pkg/seaice.
596    o in FFIELDS.h:
597      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
598      - make pLoad & sIceLoad always available (but still only used if
599         ATMOSPHERIC_LOADING is #define).
600    o pkg/kpp: replaced _KPP_RL with _RL
601    o bug fixes for vertical diffusivity computations when both KPP and
602        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
603        are no longer updating the vertical diffusivity array
604        (passed as argument) but are (re-) setting those arrays.
605    o pkg/seaice: fix bug in evp solver, while doing that
606      - change (improve?) discretization of stress computations for both
607        cgrid-lsr and evp solver
608      - add a new routine to compute strain rates
609      - the above changes lab_sea results
610      - add no slip conditions for evp solver (off by default), lsr-version
611        may follow
612      - fix exchange for shear at Z-points (does not change lab_sea)
613      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
614        (to force the user to pick a time step since there is not "safe" way
615        of choosing it)
616      - add principal stress diagnostics
617      - rearrange fields for evp a little to avoid having to call a: too many
618        exchanges and b: exchanges for stress trensor components which we do
619        not have.
620      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
621        of evp, complete rewrite for lsr case (latter is does not yet work
622        in all cases)
623    o pkg/kpp: add code to have mixing in shelf ice caverns
624      - add myThid to all kpp routines (long overdue)
625    
626    checkpoint59
627    o pkg/exf:
628      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
629        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
630      - move exf header files from lower_case.h to UPPER_CASE.h ;
631        add missing cvs Header & Name
632      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
633      - add namelist param. selectStressGridPosition, exf_monFreq
634      - retire many _CLIM routines, and remove data.exf_clim
635        + params moved to data.exf
636        + climsst, climsss now handled by exf_set_gen, i.e.
637          climss?period=0 refers to constant field,
638          climss?period=-12 to monthly forcing
639      - split up namelists in data.exf
640    o pkg/seaice:
641      - remove seaice_exch and seaice_exch_uv
642      - remove superfluous exchange of theta
643      - add myThid to seaice_budget_ocean/ice
644      - add new interface for atmospheric wind forcing (C-grid only)
645        + new routine
646        + two new field (taux, tauy for stress over ice)
647        + removed one global field (DAIRN) for C-grid case only
648    o pkg/thsise
649      - 2nd set of modifs for thsice adjoint in conjunction with exf
650    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
651    
652    checkpoint58y_post
653    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
654      vertical diffusivity, similar to that in MOM4; turned on using
655      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
656      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
657    o Added capability for 3D specification of background vertical diffusion
658      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
659      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
660      "data" file that contains the 3D vertical diffusivity coefficients.
661    o ice dynamics (pkg/seaice) with thsice thermodynamics:
662      - add code within pkg thsice to advect & diffuse sea-ice fields
663      similar to (and will replace) what has been added in  seaice_advdiff.F,
664      but: - conserving Mass, Heat & Salt.
665           - better when using non-linear advection scheme (not yet fully tested)
666           - can also be used in atmospheric set-up (for now, only the diffusion).
667    
668    checkpoint58x_post
669    o IO option for global-file compact format:
670      - add options when generating topology (utils/exch2/matlab-topology-generator)
671      - add I/O capability (pkg/mdsio).
672      - adapt utils/matlab/rdmds.m to read this format.
673      for now long-line format not yet supported by pkg/mdsio (& exch2).
674    o shelfice: add a few diagnostics
675    
676    checkpoint58w_post
677    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
678      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
679      (and replace horiVertRatio in NH code).
680      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
681                         and tutorial_plume_on_slope (sensitive to truncation)
682    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
683      directly to drive seaice model (C-grid only)
684    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
685     - reintroduce computation of wind from stress,
686     - compute tau (in exf_bulkformulae.F) from windstress averaged to
687       mass points to avoid tau = 0
688     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
689    o rdmnc.m: make it work with "global" files created with gluemnc
690    o rdmnc.m : some improvements in dealing with singleton dimension
691      (tested on all testreport mnc output files).
692    o genmake2: disable pkg/profiles if netcdf test fails.
693    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
694    o move call to cal_readparms up to make calendar parameters/variable available
695      to all packages
696    
697    checkpoint58v_post
698    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
699      useDynP_inEos_Zc tested.
700    o pkg/exf: changes to properly interpolate/mask/scale initial fields
701    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
702      and portions thereof.  See read_cs.txt for description and examples.
703    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
704      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
705      following the great-circle arc between those 2 points.
706    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
707      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
708    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
709     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
710     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
711     - still needs work (not working with some options ; efficiency to improve)
712       and serious testing.
713     - use this scheme for temperature & salinity in 2 advection test exp.:
714       advect_xy & advect_xz, respectively.
715    
716    checkpoint58u_post
717    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
718    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
719    o testreport: add option "-skipdir" to skip some test.
720    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
721      momentum calculation.
722    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
723    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
724      remove checkpoint.F and the_correction_step.F (no longer used);
725      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
726    o add option (linFSConserveTr) to correct for tracer source/sink due to
727      Linear Free surface
728    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
729    o pkg/thsice: fix reading mnc-pickups
730    
731    checkpoint58t_post
732    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
733    o pkg/mdsio:
734     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
735       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
736       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
737     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
738     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
739       either MDS_READ_FIELD or MDS_WRITE_FIELD )
740     - new S/R (to replace MDSWRITEMETA), which allows to write more
741       informations (variable names, time ...) to meta files.
742     - modify rdmds.m to give back the meta file content.
743    o pkg/diagnostics: change vertical interpolation to be safer, and more
744       flexible (define p-levels to interpolate to in data.diagnostics);
745      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
746       diagnostic pointer.
747    o pkg/seaice: more cleaning up of seaice_growth, added many comments
748    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
749    o fix multi-category seaice:
750     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
751       SEAICE_MULTICATEGORY
752     - fix short wave heat flux
753    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
754       and allow to use EVP solver. Change forward lab_sea: test both EVP
755       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
756    o Initial check-in of lab_sea adjoint
757      (very similar to natl_box_adjoint/code_seaice)
758      * used C-grid and EVP solver
759      * used KPP, GM/Redi
760      * uses inAdExact=.TRUE.
761      * gradient checks fail for both ADM and TLM
762        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
763        f.d. gradients actually seem more problematic than ADM, TLM gradients;
764        issue is related to forward mismatch between g77 an ifort
765    o pkg/seaice: overhaul of thermodynamics
766     - growth.F and groatb.F are replaced by new routine seaice_growth.F
767     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
768     - move a few global fields out of SEAICE.h into seaice_growth.F and
769       make them 2D (FICE/QNETO/ ...)
770     - remove FO (it is the same as QNETO)
771     - introduce a few local fields to avoid modifying external fields such
772       as atemp, etc.
773    
774    checkpoint58s_post
775    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
776      changed exf_set_gen.F so that
777        genperiod=0 means input file is one time-constant field and
778        genperiod=-12 means input file contains 12 monthly means
779    o CG2D: use pre-computed solver main-diagonal (stored in common block);
780      this affects truncation error ; generate new output file for exp. which
781      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
782        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
783        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
784        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
785        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
786        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
787    o start implementation of deep-atmosphere and anelastic formulation
788    o verification: remove 2nd copy of input files and use script "prepare_run"
789      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
790    o mom_common/vecinv/fluxform: fix a few initialisation isssues
791    o profiles: fix for multithreaded case
792    
793    o diagnostics: rename few diags:
794      s/'PRESSURE'/'RCENTER '/g
795      s/'TICE    '/'oceFreez'/g
796      s/'TAUX    '/'oceTAUX '/g
797      s/'TAUY    '/'oceTAUY '/g
798      s/'SWFLUX  '/'oceQsw  '/g
799      s/DIFx/DFxE/g
800      s/DIFy/DFyE/g
801      and add few ocean-forcing diagnostics:
802      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
803    o modifications to pkg/seaice/growth.F and budget.F, which change results of
804      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
805      as actual snow thickness.  It now refers everywhere to effective snow
806      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
807    
808    checkpoint58r_post
809    o modifications to pkg/seaice/growth.F, which change results of
810      lab_sea experiment: fixes pertain to melting snow over open water, to
811      masking EVAP under sea ice, and to using the correct AREA variable for
812      computations of EVAP, PRECIP, HSNOW, and GHEFF
813    o add ability to read bathy, salt, and theta using MNC (off by def)
814    o add flooding algorithm and advection of HSNOW for pkg/seaice;
815      both are turned off by default and do no change any results
816    o seaice advection with pkg/thsice: a step toward the use of non-linear
817      advection scheme, but #ifdef or commented out for now (requires more EXCH).
818    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
819      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
820      in natl_box (affects results @ truncation level: update output.txt)
821    o multi-threading and IO:
822      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
823      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
824        (needed to work with SingleCpuIO): tested in all verif. exp.
825    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
826      affects the results (but none of the verification test uses this scheme).
827    o Adding some pkg/diagnostics capability to pkg/seaice
828      (will certainly be subject to changes)
829    o ctrl: adding new control variables:
830      lwflux, lwdown, evap, snowprecip, apressure, runoff
831    
832    checkpoint58q_post
833    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
834      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
835      high_res_cube configuration by 4% on Columbia.
836    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
837      add (in global_with_exf/code) a version of EXF_INTERP_READ without
838      dynamical allocation (seems to work in multi-threaded).
839    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
840      single CPU io) so that TAF does not have to see EESUPPORT.h
841    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
842    
843    checkpoint58p_post
844    o obcs: stop if obcs is used with useCDscheme = .true.
845    o shelfice:
846     - fix a sign error so that no slip at shelfice interface works
847     - remove stop for combination non-hydrostatic code and shelfice. That does
848       not mean, that the results are correct, but at least they are numerically
849       stable
850    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
851    o added adjoint exch routined for all exch*3d* routines
852      and updated flow directives
853    
854    checkpoint58o_post
855    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
856      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
857    o change controling S/R for writing pickup file (new S/R do_write_pickup)
858      and clean-up reading/writing of pickup files.
859    o fix local version of read/write pickup (NH part) in rotating_tank/code
860    o simplify EXCH interface:
861     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
862     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
863    o added the regrid package
864    o shelfice:
865     - add a simple boundary layer scheme to reduce noise
866     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
867    
868    checkpoint58n_post
869    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
870       local variable (not in common block).
871    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
872      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
873      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
874        to work with SingleCpuIO.
875    o add "_d 0" to real constant of pkg/cfc subroutines ;
876       update exp. cfc_exemple & tutorial_cfc_offline output files.
877    o multi-threading and IO:
878      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
879        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
880      - barrier before and after reading.
881      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
882      - avoid using MDS_WRITELOCAL for LAND pkg output.
883      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
884        common-block variables ; Allows multi-threading with master-thread IO.
885    o change default MAX_NO_THREADS from 32 to 4 ;
886      and stop cleanly when MAX_NO_THREADS is too small.
887    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
888    
889    checkpoint58m_post
890    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
891       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
892    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
893       keep global_ocean.90x40x15 (for AD testing) with former secondary test
894       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
895    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
896        add MITgcm_tutorials (= code + all the tutorials)
897    o ecco, option to compute cost for total ssh (mean+anom)
898    o consistent with addition of ptracer and ssh in pkg/profiles
899    o profiles: adding ptracer and ssh
900    o testreport: change multi-test output-file name
901      (from output.txt.{name} to output.{name}.txt)
902    o profiles: now ok for mutli-tiles case
903    o seaice: add 4 parameters for different advection schemes for area,
904      (effective) seaice thickness, enthalphy, and snow height. Their default
905      is the standard parameter SEAICEadvScheme
906    o calc_gw:
907     - add cosFacU in zonal viscous flux (harmonic.visc.).
908     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
909       of tutorial_plume_on_slope.
910    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
911    o calc_gw: true flux-form, account for horizontal grid spacing.
912      update rotating_tank results, but not plume_on_slope (affected at
913      truncation level, 11 digits).
914    
915  checkpoint58l_post  checkpoint58l_post
916  o take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V  o calc_gw:
917     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
918     - remove side-drag for now (need to fix it); update plume_on_slope results.
919     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
920  o commit code to make SST/SSS weights spatially variable  o commit code to make SST/SSS weights spatially variable
921    (based on either variable in-situ or variable initial T/S weights)    (based on either variable in-situ or variable initial T/S weights)
922  o pkg/ecco:  o pkg/ecco:

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