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revision 1.730 by cnh, Wed Oct 11 19:30:01 2006 UTC revision 1.998 by gforget, Fri May 30 02:53:14 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 bridging the gap between eddy stress and GM.
8      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
9          along with a change in CPP option (now ALLOW_EDDYPSI).
10      -> when using GM w/ GM_AdvForm:
11          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
12          is applied either in the tracer Eq. or in momentum Eq.
13          depending on data.gmredi (intro. GM_InMomAsStress).
14      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
15      The key modifications are in model/src/taueddy_external_forcing.F
16      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
17    checkpoint59r
18    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
19      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
20      fix option to read coriolis(@ cell-corner) from files with CS-grid.
21    o pkg/mnc: add some attributes to standard 1D-coordinate variables
22    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
23      mass points, when using mnc for output
24      - add runtime parameter (missing_value, missing_value_int) to override
25        default (which is the value of getcon('UNDEF'))
26    o pkg/mnc: prepare mnc for the actual use of missing values with the
27      diagnostics package: small fix in mnc_cw_readwrite.template and more
28      initialisation of never used fields
29      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
30      versions
31    o pkg/thsice/thsice_ini_vars.F added default initial values so that
32      thermodynamics sea ice solver does not blow up when some initial fields
33      are missing.
34    o move from external_forcing_surf.F to ini_forcing.F
35      the p-coord. hack consisting in using pLoad to set phi0surf ;
36      update output of tutorial_global_oce_in_p (affected @ truncation level).
37    o Freshen up a bit hs94.1x64x5, notably:
38      remove rotationPeriod and tRef=5*0. (adjoint only), and add
39      exactConserv=.TRUE.
40    o pkg/generic_advdiff:
41      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
42      applies to files where Temperature & Salinity 2nd Order moments are used.
43    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
44      this uses a dynamically allocated internal state data structure
45      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
46      and requires a fortran 90 compiler
47    
48    checkpoint59q
49    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
50       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
51    o Refresh tutorial_global_oce_biogeo, notably:
52      - change bathymetry (put back seamounts in ACC, use hFacs)
53      - change EOS (POLY3 --> JMD95Z)
54      - use Bryan-Lewis vertical diffusivity
55      - use multidimensional advection
56      - remove old virtual virtual in dic pkg, now done through ptracer pkg
57      - change a couple of parameters in dic pkg
58    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
59    o pkg/obcs: change default to OBCSfixTopo = .true.,
60      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
61      - replace "debugMode" with "debugLevel .GE. debLevB"
62    o implementation of TAF directives for gchem,cfc,dic
63    o remove "exp5" (replaced by tutorial_deep_convection).
64    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
65      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
66      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
67      --> changes results in exp4, seaice_obcs
68    o tutorial_deep_convection :
69      update the set-up and increase resolution and domain size ; start
70      from pseudo initial conditions = output at t=120mn in order to see
71      something happening when running testreport.
72    o pkg/seaice: add os7mp as an advection scheme
73                  add check for advection schemes
74                  add a flag for restoring T and S underneath sea ice
75    o pkg/my82: add netcdf-support and diagnostics
76    o thsice pkg:
77      - Now hsMax limits snow height by turning it into ice following
78        flooding scheme (and now conserving energy)
79      - Slight rewriting of the formula in thsice_calc_thick.F
80      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
81      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
82    
83    checkpoint59p
84    o gchem / dic / cfc :
85      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
86      - add new parameter files: "data.dic" & "data.cfc" ;
87      - various re-arrangement in initialisation & header file ;
88      - fix tutorial_global_oce_biogeo for multi-threaded test.
89    o pkg/dic: test for "pickup_dic" file when restarting ;
90      if no pickup-file, can restart with a re-initialised pH (same as it did
91      before) providing pickupStrictlyMatch is set to False.
92    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
93      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
94    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
95      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
96    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
97     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
98       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
99    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
100       scheme to use for vorticty-term ;
101     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
102       (with default selectVortScheme, return to original discretisation)
103     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
104    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
105    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
106      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
107      also fix diagnostics VISCAHW & VISCA4W.
108    
109    checkpoint59o
110    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
111    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
112      move a few statemens out the main loop into separate loops
113    o pkg/shelfice:
114      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
115        (kg/m^2/s), does not break tests, because in verification/isomip,
116        rhoConstFresh=rhoConst (by accident)
117      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
118      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
119        new file model/src/seawater.F, so that they are available for all pkgs.
120      - convert potential temperature into in-situ temperature. This changes the
121        isomip tests => update tests
122    o add a flag writePickupAtEnd (default=true) to be able to suppress
123      writing a pickup at the last timestep
124    o tools/mpack-1.6 :
125      - disable automake (not working) and autoconf (not needed).
126      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
127        also cleaner with much less compilation warnings.
128    o pkg/profiles:
129      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
130      (for "less than 32 characters name" compiler requirement)
131    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
132      conditions that have a different sampling frequency than S/T/U/V obcs
133    o pkg/diagnostics (stats-diags):
134      - fix global Min/Max in case 1 processor get only empty tiles
135    o genmake2: replace (4 times)
136         make genmake_tc_1.o >> genmake_warnings 2>&1
137      with
138         COMM="$CC $CFLAGS -c genmake_tc_1.c"
139         echo $COMM >> genmake_warnings
140         $COMM >> genmake_warnings 2>&1
141      to make genmake2 always see the value of CC as specified in the optfile.
142    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
143      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
144      - modify verification advect_cs test to test SOM-advection on CS-grid.
145    o pkg/ctrl:
146      - Rewrite of ctrl_map_ini_ecco.F,
147        introducing a generic routine (ctrl_map_ini_gen.F).
148      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
149    
150    checkpoint59n
151    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
152      number in dedicate array "hdiag":
153      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
154        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
155      - many small changes (integer format) for large number of diagnostics
156      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
157        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
158    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
159      usingSphericalGrid, this allows to define the rotated grid coordinates
160      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
161      geographical coordinates according to the inverse of the rotation defined
162      by the Euler angles, so that Coriolis parameter and online-interpolation by
163      exf works with the geographical coordinates on XC/YC/XG/YG.
164      Naturally, this feature does not work with all packages, so some
165      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
166      profiles), because there the coordinates are assumed to be regular
167      spherical grid coordinates.
168    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
169      - introduce isopycnal diffusion coefficient control.
170    o tools/adjoint_options:
171      - additional control vector components.
172    o pkg/mnc: have mnc create marginally meaning full coordinate variables
173      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
174    o pkg/mypackage:
175      - add example of read/write pickup for state-var ;
176      - add entry points to the main code for state-vars diags & write-pickup.
177    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
178      transitions for useExfYearlyFields
179      - add new subroutine that determines the file to read from for
180        use*YearlyFields = .TRUE. and .FALSE.
181      - add a verification experiment to global_with_exf that tests
182        useExfYearlyFields with USE_EXF_INTERPOLATION defined
183    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
184      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
185      subroutines (which could be generated from a template, because they are
186      almost identical), for now they are included in obcs_prescribe_read.F for
187      simplicity
188    o pkg/exf:
189      - add a little more diagnostic to exf_interp_read (in analogy to
190        mds_read_field, can be turned off with debugLevel < debugLevA=1)
191      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
192        ugly but fast by unrolling short inner loops, inserting a unroll=8
193        directive in routine lagran, and splitting a loop and making do while the
194        outermost loop (the latter requires the intoduction of index arrays)
195    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
196    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
197      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
198    o verification/seaice_obcs: updated for restart test and latest options
199    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
200      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
201      for now this is only available for the C-grid code and also within
202      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
203    
204    checkpoint59m
205    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
206      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
207    o gad_som : fix flux output (& diagnostics) to have same units as other  
208      advection scheme fluxes (was previously multiplied by deltaT).  
209    o added verification/seaice_obcs both to test seaice open boundaries
210      and to provide an example matlab scrpt for generating them
211    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
212    o pkg/salt_plume: clean up salt_plume_frac.F to
213      remove redundancy in PlumeMethod 1 and 4
214    o pkg/kpp: added saltplume diagnostics
215    o pkg/obcs and pkg/seaice:
216      - do not set uice and vice to zero when OB*icefile are unspecified
217      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
218      - moved seaice tracer obcs after call to seaice_growth
219    o pkg/salt_plume: added various options for salt plume depth
220      criterion and for vertical distribution of the salt
221    
222    checkpoint59l
223    o pkg/ptracers: new version of ptracers pickup:
224      read meta file and write only fields which are needed to restart.
225      ( same logic as main pickup file ; also using pickupStrictlyMatch )
226    o pkg/seaice:
227      - add timescale for melting due to warm mixed layer as a means of
228        setting SEAICE_availHeatFrac more conveniently
229      - add a CPP-flag/runtime parameter check for flooding algorithm
230      - reformulated availHeat in seaice_growth.F to be independent of AREA
231    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
232      unit changes
233    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
234    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
235      SX vector computer.
236    o pkg/seaice:
237      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
238        seaice forcing fields can now be read only through pkg/exf
239      - removed some unused halos
240    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
241    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
242      or U/VICE from U/VWIND before computing U/VSTRESS
243    
244    checkpoint59k
245    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
246      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
247    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
248      all experiments pass when compile with un-initialised var. checking option.
249    o added pkg/salt_plume
250    o script to test restart (for now, in MITgcm_contrib/jmc_script)
251    o pkg/seaice: new read/write pickup version.
252      read meta file and write only fields which are needed to restart.
253      ( same logic as main pickup file ; also using pickupStrictlyMatch )
254    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
255    o lab_sea.hb87: modify the domain & update output.hb87.txt :
256      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
257      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
258      process. Fixed here by closing the domain at the Northern boundary.
259    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
260    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
261      a set of consecutive levels in/from a 3-D array.
262    o pkg/ptracers:
263      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
264      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
265    
266    checkpoint59j
267    o in pkgs: dic, obcs, offline, rbcs:
268      standard way to compute coeff. for time interpolation between 2 time reccords
269      which retains full precision (& make results less dependent on compiler).
270      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
271    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
272      packages instead of reading ice cover and wind speed separately
273    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
274     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
275      to allow to compile customized code before the update)
276    o cleaning-up:
277      - fix CPP instruction syntax in pkg/obcs
278      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
279        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
280      - fix some threads issue in IO parts.
281    o pkg/dic:
282      - add tons of "_d 0" (--> much better testreports !)
283       and then update outputs of tutorial_global_oce_biogeo
284    o pkg/mom_fluxform:
285      add a special version of momentum advection intended to conserve momentum
286      next to a bathymetry step or a coastline edge. (default = off = #undef)
287    o new read/write pickup version:
288      - for now, only implemented for main (mdsio) pickup file.
289      - write out only what is needed to restart; merge pickup_nh , pickup_ph
290        and main pickup together.
291      - read meta file; read only what is needed to restart; stop if a field
292        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
293        if it make sense (even if the restart is not perfect).
294      - if no meta file, assume that pickup to read corresponds exactly to
295        a pickup that would currently be written.
296      - read pickup written in the old format (until checkpoint59i) if it
297        recognizes an old meta file (no field-list).
298      - add a meta file in exp. which starts from a pickup: 2 cases:
299        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
300         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
301        b) a meta file describing the content of the associated pickup file
302         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
303    o pkg/mdsio & pkg/rw:
304      - new routine to read a meta file ; new set of routine to read
305        Multiple-fields file (with meta file).
306    o added open boundary conditions capability for seaice
307        HSNOW, HSALT, UICE, and VICE
308    
309    checkpoint59i
310    o adjoint:
311      * fix multiDimAdvection adjoint
312        (partial recomputation problem by TAF for fVerT(:,:,kDown)
313        and comlev1 size definition (maxpass vs. max. number of tracers)
314      * verification/global_ocean.90x45x15 adjoint now tests
315        NLFS and multiDimAdvection using DST3 (=30)
316      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
317    o pkg/kpp: add "_d 0" to real constant (if missing);
318      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
319      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
320    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
321      for internal parameters related to restart process (formerly from PARAMS.h)
322      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
323    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
324      as argument. (only atm2d & obcs write_pickup have not yet been updated)
325    o pkg/monitor:
326      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
327      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
328      - account for deep Atmosphere factor and density factor (anelastic)
329    o added open boundary conditions capability for seaice HEFF and AREA
330    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
331      thermodynamics
332      - requires a little reorganization, which affects the testreport results
333        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
334        so that now the conservative form is tested
335      - add a few comments
336    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
337    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
338    o add new diagnostics to seaice: advective, diffusive fluxes (only for
339      multidim-advection, for scheme 2 they are not filled) and transports,
340      thermodynamic growth rates
341    o change units of EmPmR (inside the code, + within coupling interface)
342      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
343      Affects results @ truncation level (cg2d match) and update output of
344       experiments: lab_sea(6), global_ocean.90x40x15(10),
345      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
346      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
347      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
348      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
349    
350    checkpoint59h
351    o pkg/exf:
352      - improve vectorization by moving if-statement out of loops in
353        exf_mapfields, exf_radiation
354      - exf_bulkformulae.F: introduce 2D fields and vectorize code
355    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
356    o testreport:
357      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
358        monitor & update offline_exf_seaice exp. output.
359      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
360    o pkg/seaice:
361      - bug fix in the evp solver: boundary conditions were affected be
362        masking of zMax/zMin (changes results)
363      - minor bug fix in boundary conditions in seaice_calc_strainrates
364        (changes results for no_slip)
365      - seaice_lsr.F: make interpolation of eta dependent on boundaries
366      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
367      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
368        stress formulation and no-slip boundary conditions
369    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
370      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
371    o pkg/seaice: a first HSALT time stepping equation has been checked in
372    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
373      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
374      without requiring DO-IF statements
375    o pkg/thsice:
376      use continuous power-law function for partition of energy between lateral
377      melting/freezing and thinning/thickening ; old code using step function
378      still available with #undef THSICE_FRACEN_POWERLAW
379      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
380    o testreport: change AD testing : check against results/output_adm.txt
381      using same scripts as for forward test.
382    
383    checkpoint59g
384    o adjoint testing: in preparation for changing testreport:
385      - output format: cost and grad written on separated lines
386      - ad output results in directory "results" (instead of "results_ad")
387    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
388    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
389    o pkg/ecco: allow user defined cost function contributions
390    o testreport:
391      Allow to choose (per experiment) the list of tested output variables
392       and the main variable (used to issue a pass/FAIL ) ;
393      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
394      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
395      Also modify printing of summary:
396       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
397       b) echo the list of tested variables in the individual summary.txt of
398          each experiment.
399    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
400      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
401      (but still depend on the tile decompostion of the domain).
402    o pkg/seaice: change a discretization detail to make the B-grid code
403      "more symmetric". This change is likely to remove all "ridges/leads" that
404      where quasi-aligned with the grid in B-grid solutions. It may also be
405      the solution to the stress coupling issues with the B-grid.
406    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
407      remove .cvsignore from input dir. (since testreport no longer run here).
408    o pkg/thsice:
409     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
410     - fix reshaping of sea-ice just after advection:
411       melt all the ice only if ice-volume is too small.
412     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
413       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
414     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
415    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
416      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
417    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
418      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
419      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
420      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
421      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
422      -> update output.txt
423    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
424     this affects truncation error: -> update output.txt of exp:
425      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
426      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
427    
428    checkpoint59f
429    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
430    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
431      a bounded range (in forward mode)
432    o pkg/ecco, ctrl, autodiff and mom_common:
433     internal parameter controls, completements of implementations
434    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
435    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
436      (not seem any difference in testing results).
437    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
438       at face corners.
439    o pkg/generic_advdiff:
440     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
441      loop range indices for computing vertical advection tendency
442      and do the calculation in the interior only (no overlap) ;
443      for now, only implemented for SOM advection (to save CPU time).
444     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
445    o exch2 adjoint
446      First set of changes:
447      - add exch2 hand-written adjoint templates
448      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
449        This will require cleanup in pkg/autodiff/*.F
450        (changed routines currently kept separate in verif. code/)
451      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
452        that used to hide exch2 or cubed-sphere specific code
453        (commented via 'cph-exch2')
454    o pkg/seaice
455      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
456    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
457       output of global_ocean.cs32x15.thsice .
458    
459    checkpoint59e
460    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
461      for B-grid vector (not yet tested) and C-grid vector (<- only used
462      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
463    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
464      (#ifdef ALLOW_SALT_PLUME)
465    o gather_2d/scatter_2d: removed halo regions
466    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
467      scheme and the corresponding test case (under front_relax dir). For now,
468      only available with Skew-flux form and not yet tested in realistic set-up.
469      adjoint: store directives updated, but gradient checks deteriorated,
470      so maybe GM/Redi adjoint is now broken.
471    o seaice adjoint
472      * add AREA, HEFF, HSNOW as control variable
473        (should not change lab_sea results)
474      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
475    o pkg/seaice:
476      * added computation of saltFlux in seaice_growth;
477        For time being, sea ice salinity is assumed constant
478        contribution of snow flooding to freshening of sea ice is neglected.
479        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
480        defaults to 0.0 in order to maintain backward compatibility.
481        Typical values for SEAICE_salinity are 4 to 10 g/kg.
482      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
483      * added SEAICE_availHeatFrac, which specifies fraction of surface level
484        heat content used to melt or grow ice
485      * commented out cap of HICE: it helps keep ice thinner
486      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
487      * applied OBCS T/S mask to HEFFM sea ice mask
488    
489    checkpoint59d
490    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
491     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
492     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
493    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
494     and change default value of parameter "GM_Small_Number";
495     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
496       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
497       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
498    o pkg/ecco: cost function when applying pkg/smooth to controls
499    o pkg/ctrl: add forcingPrecond run time parameter
500    o pkg/seaice:
501     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
502     - fix bug in metric terms of u-equation in LSR solver (implicit part),
503       changes verification/lab_sea
504     - rearrange implicit part of u-equation in LSR solver to make it easier to
505       read, understand, and debug. This causes changes at the truncation level.
506     - fix (serious) bug in the boundary conditions (sign error in the implicit
507       part) of the LSR solver. Changes all LSR results.
508     - fixed problem with HSNOW initialization to avoid thick snow when AREA
509       is initilized with small values - does not change lab_sea results.
510     - added HsnowFile initialization capability
511    o pkg/smooth: addition to model/src and pkg/ctrl so allow
512     initialization of pkg/smooth and application to control vector
513    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
514    o dependencies: pkg/profiles requires pkg/cal
515    o pkg/profiles:
516     - added option ALLOW_PROFILES_GENERICGRID
517         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
518         that interpolation information (grid points and coefficients) is provided
519         within the netcdf input files.
520         -> sample matlab scripts can be found in MITgcm_contrib/gael
521         that allow you to prepare netcdf input files.
522     - also modified: cleaner include statements, cleaner error print statements,
523       cleaner stops when error, and more tests of the netcdf input files consistency.
524    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
525    o pkg/seaice:
526     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
527       requires a new routine: seaice_diagnostics_fill.F
528     - make sure that seaice does not move if not forced (pressure replacement
529       method, Hibler and Ip, 1995), changes results
530     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
531     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
532       It is turned off by default (=-1.), because it changes the results.
533     - make it possible to read AREA from a file, too.
534    
535    checkpoint59c
536    o add S/R and diagnostics for oceanic mixed-layer depth
537    o move GMRedi call after all vertical mixing schemes (including KPP)
538    o pkg/thsice:
539     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
540      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
541    o pkg/obcs:
542     - bug fix for balance code
543    o pkg/seaice:
544      - allow values of SEAICE_elasticParm > 1
545      - add new parameter SEAICE_evpTauRelax as an alternative
546        to SEAICE_elasticParm
547      - make lsr boundary conditions free slip (by default), changes result
548      - add code for no slip boundary conditions for lsr
549      - set minimum of zeta to zero (and not 4e8) (changes results)
550      - add a cap on AREA after advecting AREA if seaice_growth is not called
551    o change calculation of Visbeck K:
552      - no longer depend on tapering scheme; instead, compute slope (limited
553        by GM_maxSlope). this is equivalent to what was comuted before with
554        clipping or linear tappering.
555      - fix vertical averaging (wrong by 1/2 level)
556      - leave the old version (but will not be maintained) within
557        #ifdef OLD_VISBECK_CALC / #endif
558      - update output of exp. ideal_2D_oce
559    o change error catch in calc_r_star to improve vectorization
560    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
561      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
562    o adjoint:
563      Re-organized adjoint checkpointing according to Matt Mazloff
564      (but with modifs/completions/cleanups)
565      Storing is now bundled into large arrays to optimized I/O
566      (and second step in cleanup of the_main_loop)
567    
568    checkpoint59b
569    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
570      - export/import (between ocean & coupler) fields needed for ocean DIC.
571    o pkg/seaice:
572      - get rid of three more exchanges seaice_calc_viscosities (required
573        different loop boundaries in seaice_lsr and seaice_ocean_stress)
574      - bug fix in seaice_ocean_stress (update of lab_sea required)
575      - reduce loop boundaries to necessary minimum also in seaice_evp
576      - go back to the old way of computing deltaC/Z as the adjoint likes that
577        better
578    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
579      passive tracer to an Age Tracer) + update output.txt
580    o pkg/exf:
581      - implement A-grid / C-grid selection for wind-stress input files.
582      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
583      for now, in exf_bulk_largeyeager04.F only :
584      - change implementation for case where windspeed + 2. components wind-stress
585        are read-in. AND use rhoConstFresh to convert evap.
586    o pkg/seaice:
587      - use correct EXCH_UV for wind-forcing (on A-grid).
588      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
589        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
590    o pkg/exf:
591      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
592      EXF_INTERPOLATION:
593      - merge global_with_exf/code version of exf_interp_read.F
594        to the main code ;
595      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
596        reading the file ; Important: This options needs to be defined to recover
597        previous code.
598        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
599      - no longer loose real*8 precision along the way when using exf_iprec=64.
600    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
601      - change discretisation of evp-solver in order to avoid another exchange
602        (changes lab_sea) and clean up a little
603      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
604        help the adjoint (this also changes the results slightly)
605      - add a few "_d 0" where they had been missing in seaice_evp.F
606      - cleaning up: remove unused seaice_calc_rhs.F
607    o pkg/exf: some cleaning-up:
608      - change various "constants" into runtime parameters
609      - cleaned-up Large&Yeager04 routine which should eventually
610        replace exf_bulkformulae.F (changed names of S/R and CPP)
611        and merged various ALLOW_ATM_WIND options
612     only used with thsice pkg (in thsice_get_exf.F):
613      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
614        which are used when useStabilityFct_overIce=TRUE (= the default)
615      - change default values of ice & snow emissivity and scale downward LW
616        by ice & snow emissivity.
617    o pkg/thsice:
618     fix few little problems, in thsice_calc_thickn.F:
619      - growth vertically (and not laterally) if iceFrac == iceMaskMax
620      - melt only laterally if hIce < hThinIce (as the comments say)
621      and in thsice_extend.F:
622      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
623      - start to form ice as soon as the minimum ice-volume is reachable.
624     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
625      and cpl_aim+ocn
626    o pkg/kpp
627     - move computation of surface related input fields to KPP into a new
628       subroutine kpp_forcing_surf.F
629     - remove wrong (within bi,bj loops) EXCH calls.
630     - little cleaning (add argument myThid in last position, cvs header ...)
631     - for now, fix conservation problem by exchanging KPPviscAz (may not
632       be the best fix)
633    o pkg/seaice
634     - check for inconsistent evp parameter/cpp-flag combination
635     - remove leftover errIO flat for obsolete name list error handling
636    o OpenAD
637     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
638    
639    checkpoint59a
640    o pkg/seaice: some parameter clarifications and a little bit of clean up
641    o pkg/thsice: rename run-time parameters:
642       himin       -> hIceMin
643       himin0      -> hThinIce
644       hihig       -> hThickIce
645       i0          -> i0swFrac
646       transCoef   -> bMeltCoef
647       frac_energy -> fracMelting
648      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
649       with default values (for now) that do not change the results.
650      remove old version of thsice vars advection in pkg/seaice.
651    o in FFIELDS.h:
652      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
653      - make pLoad & sIceLoad always available (but still only used if
654         ATMOSPHERIC_LOADING is #define).
655    o pkg/kpp: replaced _KPP_RL with _RL
656    o bug fixes for vertical diffusivity computations when both KPP and
657        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
658        are no longer updating the vertical diffusivity array
659        (passed as argument) but are (re-) setting those arrays.
660    o pkg/seaice: fix bug in evp solver, while doing that
661      - change (improve?) discretization of stress computations for both
662        cgrid-lsr and evp solver
663      - add a new routine to compute strain rates
664      - the above changes lab_sea results
665      - add no slip conditions for evp solver (off by default), lsr-version
666        may follow
667      - fix exchange for shear at Z-points (does not change lab_sea)
668      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
669        (to force the user to pick a time step since there is not "safe" way
670        of choosing it)
671      - add principal stress diagnostics
672      - rearrange fields for evp a little to avoid having to call a: too many
673        exchanges and b: exchanges for stress trensor components which we do
674        not have.
675      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
676        of evp, complete rewrite for lsr case (latter is does not yet work
677        in all cases)
678    o pkg/kpp: add code to have mixing in shelf ice caverns
679      - add myThid to all kpp routines (long overdue)
680    
681    checkpoint59
682    o pkg/exf:
683      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
684        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
685      - move exf header files from lower_case.h to UPPER_CASE.h ;
686        add missing cvs Header & Name
687      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
688      - add namelist param. selectStressGridPosition, exf_monFreq
689      - retire many _CLIM routines, and remove data.exf_clim
690        + params moved to data.exf
691        + climsst, climsss now handled by exf_set_gen, i.e.
692          climss?period=0 refers to constant field,
693          climss?period=-12 to monthly forcing
694      - split up namelists in data.exf
695    o pkg/seaice:
696      - remove seaice_exch and seaice_exch_uv
697      - remove superfluous exchange of theta
698      - add myThid to seaice_budget_ocean/ice
699      - add new interface for atmospheric wind forcing (C-grid only)
700        + new routine
701        + two new field (taux, tauy for stress over ice)
702        + removed one global field (DAIRN) for C-grid case only
703    o pkg/thsise
704      - 2nd set of modifs for thsice adjoint in conjunction with exf
705    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
706    
707    checkpoint58y_post
708    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
709      vertical diffusivity, similar to that in MOM4; turned on using
710      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
711      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
712    o Added capability for 3D specification of background vertical diffusion
713      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
714      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
715      "data" file that contains the 3D vertical diffusivity coefficients.
716    o ice dynamics (pkg/seaice) with thsice thermodynamics:
717      - add code within pkg thsice to advect & diffuse sea-ice fields
718      similar to (and will replace) what has been added in  seaice_advdiff.F,
719      but: - conserving Mass, Heat & Salt.
720           - better when using non-linear advection scheme (not yet fully tested)
721           - can also be used in atmospheric set-up (for now, only the diffusion).
722    
723    checkpoint58x_post
724    o IO option for global-file compact format:
725      - add options when generating topology (utils/exch2/matlab-topology-generator)
726      - add I/O capability (pkg/mdsio).
727      - adapt utils/matlab/rdmds.m to read this format.
728      for now long-line format not yet supported by pkg/mdsio (& exch2).
729    o shelfice: add a few diagnostics
730    
731    checkpoint58w_post
732    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
733      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
734      (and replace horiVertRatio in NH code).
735      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
736                         and tutorial_plume_on_slope (sensitive to truncation)
737    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
738      directly to drive seaice model (C-grid only)
739    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
740     - reintroduce computation of wind from stress,
741     - compute tau (in exf_bulkformulae.F) from windstress averaged to
742       mass points to avoid tau = 0
743     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
744    o rdmnc.m: make it work with "global" files created with gluemnc
745    o rdmnc.m : some improvements in dealing with singleton dimension
746      (tested on all testreport mnc output files).
747    o genmake2: disable pkg/profiles if netcdf test fails.
748    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
749    o move call to cal_readparms up to make calendar parameters/variable available
750      to all packages
751    
752    checkpoint58v_post
753    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
754      useDynP_inEos_Zc tested.
755    o pkg/exf: changes to properly interpolate/mask/scale initial fields
756    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
757      and portions thereof.  See read_cs.txt for description and examples.
758    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
759      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
760      following the great-circle arc between those 2 points.
761    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
762      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
763    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
764     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
765     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
766     - still needs work (not working with some options ; efficiency to improve)
767       and serious testing.
768     - use this scheme for temperature & salinity in 2 advection test exp.:
769       advect_xy & advect_xz, respectively.
770    
771    checkpoint58u_post
772    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
773    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
774    o testreport: add option "-skipdir" to skip some test.
775    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
776      momentum calculation.
777    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
778    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
779      remove checkpoint.F and the_correction_step.F (no longer used);
780      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
781    o add option (linFSConserveTr) to correct for tracer source/sink due to
782      Linear Free surface
783    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
784    o pkg/thsice: fix reading mnc-pickups
785    
786    checkpoint58t_post
787    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
788    o pkg/mdsio:
789     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
790       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
791       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
792     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
793     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
794       either MDS_READ_FIELD or MDS_WRITE_FIELD )
795     - new S/R (to replace MDSWRITEMETA), which allows to write more
796       informations (variable names, time ...) to meta files.
797     - modify rdmds.m to give back the meta file content.
798    o pkg/diagnostics: change vertical interpolation to be safer, and more
799       flexible (define p-levels to interpolate to in data.diagnostics);
800      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
801       diagnostic pointer.
802    o pkg/seaice: more cleaning up of seaice_growth, added many comments
803    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
804    o fix multi-category seaice:
805     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
806       SEAICE_MULTICATEGORY
807     - fix short wave heat flux
808    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
809       and allow to use EVP solver. Change forward lab_sea: test both EVP
810       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
811    o Initial check-in of lab_sea adjoint
812      (very similar to natl_box_adjoint/code_seaice)
813      * used C-grid and EVP solver
814      * used KPP, GM/Redi
815      * uses inAdExact=.TRUE.
816      * gradient checks fail for both ADM and TLM
817        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
818        f.d. gradients actually seem more problematic than ADM, TLM gradients;
819        issue is related to forward mismatch between g77 an ifort
820    o pkg/seaice: overhaul of thermodynamics
821     - growth.F and groatb.F are replaced by new routine seaice_growth.F
822     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
823     - move a few global fields out of SEAICE.h into seaice_growth.F and
824       make them 2D (FICE/QNETO/ ...)
825     - remove FO (it is the same as QNETO)
826     - introduce a few local fields to avoid modifying external fields such
827       as atemp, etc.
828    
829    checkpoint58s_post
830    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
831      changed exf_set_gen.F so that
832        genperiod=0 means input file is one time-constant field and
833        genperiod=-12 means input file contains 12 monthly means
834    o CG2D: use pre-computed solver main-diagonal (stored in common block);
835      this affects truncation error ; generate new output file for exp. which
836      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
837        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
838        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
839        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
840        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
841        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
842    o start implementation of deep-atmosphere and anelastic formulation
843    o verification: remove 2nd copy of input files and use script "prepare_run"
844      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
845    o mom_common/vecinv/fluxform: fix a few initialisation isssues
846    o profiles: fix for multithreaded case
847    
848    o diagnostics: rename few diags:
849      s/'PRESSURE'/'RCENTER '/g
850      s/'TICE    '/'oceFreez'/g
851      s/'TAUX    '/'oceTAUX '/g
852      s/'TAUY    '/'oceTAUY '/g
853      s/'SWFLUX  '/'oceQsw  '/g
854      s/DIFx/DFxE/g
855      s/DIFy/DFyE/g
856      and add few ocean-forcing diagnostics:
857      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
858    o modifications to pkg/seaice/growth.F and budget.F, which change results of
859      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
860      as actual snow thickness.  It now refers everywhere to effective snow
861      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
862    
863    checkpoint58r_post
864    o modifications to pkg/seaice/growth.F, which change results of
865      lab_sea experiment: fixes pertain to melting snow over open water, to
866      masking EVAP under sea ice, and to using the correct AREA variable for
867      computations of EVAP, PRECIP, HSNOW, and GHEFF
868    o add ability to read bathy, salt, and theta using MNC (off by def)
869    o add flooding algorithm and advection of HSNOW for pkg/seaice;
870      both are turned off by default and do no change any results
871    o seaice advection with pkg/thsice: a step toward the use of non-linear
872      advection scheme, but #ifdef or commented out for now (requires more EXCH).
873    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
874      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
875      in natl_box (affects results @ truncation level: update output.txt)
876    o multi-threading and IO:
877      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
878      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
879        (needed to work with SingleCpuIO): tested in all verif. exp.
880    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
881      affects the results (but none of the verification test uses this scheme).
882    o Adding some pkg/diagnostics capability to pkg/seaice
883      (will certainly be subject to changes)
884    o ctrl: adding new control variables:
885      lwflux, lwdown, evap, snowprecip, apressure, runoff
886    
887    checkpoint58q_post
888    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
889      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
890      high_res_cube configuration by 4% on Columbia.
891    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
892      add (in global_with_exf/code) a version of EXF_INTERP_READ without
893      dynamical allocation (seems to work in multi-threaded).
894    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
895      single CPU io) so that TAF does not have to see EESUPPORT.h
896  o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)  o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
897    
898  checkpoint58p_post  checkpoint58p_post

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