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revision 1.740 by heimbach, Fri Oct 27 05:19:42 2006 UTC revision 1.1009 by jmc, Mon Jul 28 21:23:29 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 exch2/matlab-topology-generator:
8      fix bug in index bounds for N-S internal exchange (hard to tell if this
9      had any effect on the solution).
10    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
11      is exceeded
12    o testreport: modify syntax of awk, so that it works also with
13      awk, and not only with nawk and gawk
14    
15    checkpoint61
16    o autodiff
17      Change default for TAF usage by removing argument '-nonew_arg'
18      This changes TAF subroutine argument list (ordering of active var.)
19      Omission of this flag leads to incompatibility w.r.t. TAMC
20      To restore TAMC-compatibility, need following modifs:
21      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
22      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
23      Tested TAF version is 1.9.22
24      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
25    
26    checkpoint60
27    --->>> This is the last checkpoint for which generating the adjoint
28    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
29    --->>> by default.
30    --->>> Future checkpoints will ommit this flag by default.
31    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
32    o pkg/grdchk: Add gradient check to etan0 perturbations.
33    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
34    o pkg/autodiff: more flexibility in zeroadj.
35      model/src: modifying do_oceanic_phys.F accordingly.
36    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
37    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
38      special setup of gmredi for which the adjoint is stable
39      enough for parameter optimization.
40    o bridging the gap between eddy stress and GM.
41      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
42          along with a change in CPP option (now ALLOW_EDDYPSI).
43      -> when using GM w/ GM_AdvForm:
44          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
45          is applied either in the tracer Eq. or in momentum Eq.
46          depending on data.gmredi (intro. GM_InMomAsStress).
47      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
48      The key modifications are in model/src/taueddy_external_forcing.F
49      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
50    
51    checkpoint59r
52    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
53      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
54      fix option to read coriolis(@ cell-corner) from files with CS-grid.
55    o pkg/mnc: add some attributes to standard 1D-coordinate variables
56    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
57      mass points, when using mnc for output
58      - add runtime parameter (missing_value, missing_value_int) to override
59        default (which is the value of getcon('UNDEF'))
60    o pkg/mnc: prepare mnc for the actual use of missing values with the
61      diagnostics package: small fix in mnc_cw_readwrite.template and more
62      initialisation of never used fields
63      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
64      versions
65    o pkg/thsice/thsice_ini_vars.F added default initial values so that
66      thermodynamics sea ice solver does not blow up when some initial fields
67      are missing.
68    o move from external_forcing_surf.F to ini_forcing.F
69      the p-coord. hack consisting in using pLoad to set phi0surf ;
70      update output of tutorial_global_oce_in_p (affected @ truncation level).
71    o Freshen up a bit hs94.1x64x5, notably:
72      remove rotationPeriod and tRef=5*0. (adjoint only), and add
73      exactConserv=.TRUE.
74    o pkg/generic_advdiff:
75      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
76      applies to files where Temperature & Salinity 2nd Order moments are used.
77    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
78      this uses a dynamically allocated internal state data structure
79      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
80      and requires a fortran 90 compiler
81    
82    checkpoint59q
83    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
84       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
85    o Refresh tutorial_global_oce_biogeo, notably:
86      - change bathymetry (put back seamounts in ACC, use hFacs)
87      - change EOS (POLY3 --> JMD95Z)
88      - use Bryan-Lewis vertical diffusivity
89      - use multidimensional advection
90      - remove old virtual virtual in dic pkg, now done through ptracer pkg
91      - change a couple of parameters in dic pkg
92    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
93    o pkg/obcs: change default to OBCSfixTopo = .true.,
94      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
95      - replace "debugMode" with "debugLevel .GE. debLevB"
96    o implementation of TAF directives for gchem,cfc,dic
97    o remove "exp5" (replaced by tutorial_deep_convection).
98    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
99      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
100      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
101      --> changes results in exp4, seaice_obcs
102    o tutorial_deep_convection :
103      update the set-up and increase resolution and domain size ; start
104      from pseudo initial conditions = output at t=120mn in order to see
105      something happening when running testreport.
106    o pkg/seaice: add os7mp as an advection scheme
107                  add check for advection schemes
108                  add a flag for restoring T and S underneath sea ice
109    o pkg/my82: add netcdf-support and diagnostics
110    o thsice pkg:
111      - Now hsMax limits snow height by turning it into ice following
112        flooding scheme (and now conserving energy)
113      - Slight rewriting of the formula in thsice_calc_thick.F
114      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
115      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
116    
117    checkpoint59p
118    o gchem / dic / cfc :
119      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
120      - add new parameter files: "data.dic" & "data.cfc" ;
121      - various re-arrangement in initialisation & header file ;
122      - fix tutorial_global_oce_biogeo for multi-threaded test.
123    o pkg/dic: test for "pickup_dic" file when restarting ;
124      if no pickup-file, can restart with a re-initialised pH (same as it did
125      before) providing pickupStrictlyMatch is set to False.
126    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
127      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
128    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
129      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
130    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
131     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
132       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
133    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
134       scheme to use for vorticty-term ;
135     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
136       (with default selectVortScheme, return to original discretisation)
137     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
138    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
139    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
140      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
141      also fix diagnostics VISCAHW & VISCA4W.
142    
143    checkpoint59o
144    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
145    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
146      move a few statemens out the main loop into separate loops
147    o pkg/shelfice:
148      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
149        (kg/m^2/s), does not break tests, because in verification/isomip,
150        rhoConstFresh=rhoConst (by accident)
151      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
152      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
153        new file model/src/seawater.F, so that they are available for all pkgs.
154      - convert potential temperature into in-situ temperature. This changes the
155        isomip tests => update tests
156    o add a flag writePickupAtEnd (default=true) to be able to suppress
157      writing a pickup at the last timestep
158    o tools/mpack-1.6 :
159      - disable automake (not working) and autoconf (not needed).
160      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
161        also cleaner with much less compilation warnings.
162    o pkg/profiles:
163      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
164      (for "less than 32 characters name" compiler requirement)
165    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
166      conditions that have a different sampling frequency than S/T/U/V obcs
167    o pkg/diagnostics (stats-diags):
168      - fix global Min/Max in case 1 processor get only empty tiles
169    o genmake2: replace (4 times)
170         make genmake_tc_1.o >> genmake_warnings 2>&1
171      with
172         COMM="$CC $CFLAGS -c genmake_tc_1.c"
173         echo $COMM >> genmake_warnings
174         $COMM >> genmake_warnings 2>&1
175      to make genmake2 always see the value of CC as specified in the optfile.
176    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
177      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
178      - modify verification advect_cs test to test SOM-advection on CS-grid.
179    o pkg/ctrl:
180      - Rewrite of ctrl_map_ini_ecco.F,
181        introducing a generic routine (ctrl_map_ini_gen.F).
182      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
183    
184    checkpoint59n
185    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
186      number in dedicate array "hdiag":
187      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
188        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
189      - many small changes (integer format) for large number of diagnostics
190      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
191        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
192    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
193      usingSphericalGrid, this allows to define the rotated grid coordinates
194      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
195      geographical coordinates according to the inverse of the rotation defined
196      by the Euler angles, so that Coriolis parameter and online-interpolation by
197      exf works with the geographical coordinates on XC/YC/XG/YG.
198      Naturally, this feature does not work with all packages, so some
199      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
200      profiles), because there the coordinates are assumed to be regular
201      spherical grid coordinates.
202    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
203      - introduce isopycnal diffusion coefficient control.
204    o tools/adjoint_options:
205      - additional control vector components.
206    o pkg/mnc: have mnc create marginally meaning full coordinate variables
207      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
208    o pkg/mypackage:
209      - add example of read/write pickup for state-var ;
210      - add entry points to the main code for state-vars diags & write-pickup.
211    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
212      transitions for useExfYearlyFields
213      - add new subroutine that determines the file to read from for
214        use*YearlyFields = .TRUE. and .FALSE.
215      - add a verification experiment to global_with_exf that tests
216        useExfYearlyFields with USE_EXF_INTERPOLATION defined
217    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
218      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
219      subroutines (which could be generated from a template, because they are
220      almost identical), for now they are included in obcs_prescribe_read.F for
221      simplicity
222    o pkg/exf:
223      - add a little more diagnostic to exf_interp_read (in analogy to
224        mds_read_field, can be turned off with debugLevel < debugLevA=1)
225      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
226        ugly but fast by unrolling short inner loops, inserting a unroll=8
227        directive in routine lagran, and splitting a loop and making do while the
228        outermost loop (the latter requires the intoduction of index arrays)
229    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
230    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
231      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
232    o verification/seaice_obcs: updated for restart test and latest options
233    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
234      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
235      for now this is only available for the C-grid code and also within
236      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
237    
238    checkpoint59m
239    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
240      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
241    o gad_som : fix flux output (& diagnostics) to have same units as other  
242      advection scheme fluxes (was previously multiplied by deltaT).  
243    o added verification/seaice_obcs both to test seaice open boundaries
244      and to provide an example matlab scrpt for generating them
245    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
246    o pkg/salt_plume: clean up salt_plume_frac.F to
247      remove redundancy in PlumeMethod 1 and 4
248    o pkg/kpp: added saltplume diagnostics
249    o pkg/obcs and pkg/seaice:
250      - do not set uice and vice to zero when OB*icefile are unspecified
251      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
252      - moved seaice tracer obcs after call to seaice_growth
253    o pkg/salt_plume: added various options for salt plume depth
254      criterion and for vertical distribution of the salt
255    
256    checkpoint59l
257    o pkg/ptracers: new version of ptracers pickup:
258      read meta file and write only fields which are needed to restart.
259      ( same logic as main pickup file ; also using pickupStrictlyMatch )
260    o pkg/seaice:
261      - add timescale for melting due to warm mixed layer as a means of
262        setting SEAICE_availHeatFrac more conveniently
263      - add a CPP-flag/runtime parameter check for flooding algorithm
264      - reformulated availHeat in seaice_growth.F to be independent of AREA
265    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
266      unit changes
267    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
268    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
269      SX vector computer.
270    o pkg/seaice:
271      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
272        seaice forcing fields can now be read only through pkg/exf
273      - removed some unused halos
274    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
275    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
276      or U/VICE from U/VWIND before computing U/VSTRESS
277    
278    checkpoint59k
279    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
280      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
281    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
282      all experiments pass when compile with un-initialised var. checking option.
283    o added pkg/salt_plume
284    o script to test restart (for now, in MITgcm_contrib/jmc_script)
285    o pkg/seaice: new read/write pickup version.
286      read meta file and write only fields which are needed to restart.
287      ( same logic as main pickup file ; also using pickupStrictlyMatch )
288    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
289    o lab_sea.hb87: modify the domain & update output.hb87.txt :
290      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
291      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
292      process. Fixed here by closing the domain at the Northern boundary.
293    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
294    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
295      a set of consecutive levels in/from a 3-D array.
296    o pkg/ptracers:
297      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
298      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
299    
300    checkpoint59j
301    o in pkgs: dic, obcs, offline, rbcs:
302      standard way to compute coeff. for time interpolation between 2 time reccords
303      which retains full precision (& make results less dependent on compiler).
304      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
305    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
306      packages instead of reading ice cover and wind speed separately
307    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
308     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
309      to allow to compile customized code before the update)
310    o cleaning-up:
311      - fix CPP instruction syntax in pkg/obcs
312      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
313        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
314      - fix some threads issue in IO parts.
315    o pkg/dic:
316      - add tons of "_d 0" (--> much better testreports !)
317       and then update outputs of tutorial_global_oce_biogeo
318    o pkg/mom_fluxform:
319      add a special version of momentum advection intended to conserve momentum
320      next to a bathymetry step or a coastline edge. (default = off = #undef)
321    o new read/write pickup version:
322      - for now, only implemented for main (mdsio) pickup file.
323      - write out only what is needed to restart; merge pickup_nh , pickup_ph
324        and main pickup together.
325      - read meta file; read only what is needed to restart; stop if a field
326        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
327        if it make sense (even if the restart is not perfect).
328      - if no meta file, assume that pickup to read corresponds exactly to
329        a pickup that would currently be written.
330      - read pickup written in the old format (until checkpoint59i) if it
331        recognizes an old meta file (no field-list).
332      - add a meta file in exp. which starts from a pickup: 2 cases:
333        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
334         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
335        b) a meta file describing the content of the associated pickup file
336         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
337    o pkg/mdsio & pkg/rw:
338      - new routine to read a meta file ; new set of routine to read
339        Multiple-fields file (with meta file).
340    o added open boundary conditions capability for seaice
341        HSNOW, HSALT, UICE, and VICE
342    
343    checkpoint59i
344    o adjoint:
345      * fix multiDimAdvection adjoint
346        (partial recomputation problem by TAF for fVerT(:,:,kDown)
347        and comlev1 size definition (maxpass vs. max. number of tracers)
348      * verification/global_ocean.90x45x15 adjoint now tests
349        NLFS and multiDimAdvection using DST3 (=30)
350      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
351    o pkg/kpp: add "_d 0" to real constant (if missing);
352      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
353      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
354    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
355      for internal parameters related to restart process (formerly from PARAMS.h)
356      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
357    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
358      as argument. (only atm2d & obcs write_pickup have not yet been updated)
359    o pkg/monitor:
360      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
361      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
362      - account for deep Atmosphere factor and density factor (anelastic)
363    o added open boundary conditions capability for seaice HEFF and AREA
364    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
365      thermodynamics
366      - requires a little reorganization, which affects the testreport results
367        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
368        so that now the conservative form is tested
369      - add a few comments
370    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
371    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
372    o add new diagnostics to seaice: advective, diffusive fluxes (only for
373      multidim-advection, for scheme 2 they are not filled) and transports,
374      thermodynamic growth rates
375    o change units of EmPmR (inside the code, + within coupling interface)
376      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
377      Affects results @ truncation level (cg2d match) and update output of
378       experiments: lab_sea(6), global_ocean.90x40x15(10),
379      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
380      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
381      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
382      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
383    
384    checkpoint59h
385    o pkg/exf:
386      - improve vectorization by moving if-statement out of loops in
387        exf_mapfields, exf_radiation
388      - exf_bulkformulae.F: introduce 2D fields and vectorize code
389    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
390    o testreport:
391      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
392        monitor & update offline_exf_seaice exp. output.
393      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
394    o pkg/seaice:
395      - bug fix in the evp solver: boundary conditions were affected be
396        masking of zMax/zMin (changes results)
397      - minor bug fix in boundary conditions in seaice_calc_strainrates
398        (changes results for no_slip)
399      - seaice_lsr.F: make interpolation of eta dependent on boundaries
400      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
401      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
402        stress formulation and no-slip boundary conditions
403    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
404      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
405    o pkg/seaice: a first HSALT time stepping equation has been checked in
406    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
407      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
408      without requiring DO-IF statements
409    o pkg/thsice:
410      use continuous power-law function for partition of energy between lateral
411      melting/freezing and thinning/thickening ; old code using step function
412      still available with #undef THSICE_FRACEN_POWERLAW
413      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
414    o testreport: change AD testing : check against results/output_adm.txt
415      using same scripts as for forward test.
416    
417    checkpoint59g
418    o adjoint testing: in preparation for changing testreport:
419      - output format: cost and grad written on separated lines
420      - ad output results in directory "results" (instead of "results_ad")
421    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
422    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
423    o pkg/ecco: allow user defined cost function contributions
424    o testreport:
425      Allow to choose (per experiment) the list of tested output variables
426       and the main variable (used to issue a pass/FAIL ) ;
427      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
428      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
429      Also modify printing of summary:
430       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
431       b) echo the list of tested variables in the individual summary.txt of
432          each experiment.
433    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
434      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
435      (but still depend on the tile decompostion of the domain).
436    o pkg/seaice: change a discretization detail to make the B-grid code
437      "more symmetric". This change is likely to remove all "ridges/leads" that
438      where quasi-aligned with the grid in B-grid solutions. It may also be
439      the solution to the stress coupling issues with the B-grid.
440    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
441      remove .cvsignore from input dir. (since testreport no longer run here).
442    o pkg/thsice:
443     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
444     - fix reshaping of sea-ice just after advection:
445       melt all the ice only if ice-volume is too small.
446     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
447       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
448     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
449    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
450      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
451    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
452      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
453      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
454      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
455      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
456      -> update output.txt
457    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
458     this affects truncation error: -> update output.txt of exp:
459      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
460      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
461    
462    checkpoint59f
463    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
464    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
465      a bounded range (in forward mode)
466    o pkg/ecco, ctrl, autodiff and mom_common:
467     internal parameter controls, completements of implementations
468    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
469    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
470      (not seem any difference in testing results).
471    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
472       at face corners.
473    o pkg/generic_advdiff:
474     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
475      loop range indices for computing vertical advection tendency
476      and do the calculation in the interior only (no overlap) ;
477      for now, only implemented for SOM advection (to save CPU time).
478     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
479    o exch2 adjoint
480      First set of changes:
481      - add exch2 hand-written adjoint templates
482      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
483        This will require cleanup in pkg/autodiff/*.F
484        (changed routines currently kept separate in verif. code/)
485      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
486        that used to hide exch2 or cubed-sphere specific code
487        (commented via 'cph-exch2')
488    o pkg/seaice
489      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
490    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
491       output of global_ocean.cs32x15.thsice .
492    
493    checkpoint59e
494    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
495      for B-grid vector (not yet tested) and C-grid vector (<- only used
496      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
497    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
498      (#ifdef ALLOW_SALT_PLUME)
499    o gather_2d/scatter_2d: removed halo regions
500    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
501      scheme and the corresponding test case (under front_relax dir). For now,
502      only available with Skew-flux form and not yet tested in realistic set-up.
503      adjoint: store directives updated, but gradient checks deteriorated,
504      so maybe GM/Redi adjoint is now broken.
505    o seaice adjoint
506      * add AREA, HEFF, HSNOW as control variable
507        (should not change lab_sea results)
508      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
509    o pkg/seaice:
510      * added computation of saltFlux in seaice_growth;
511        For time being, sea ice salinity is assumed constant
512        contribution of snow flooding to freshening of sea ice is neglected.
513        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
514        defaults to 0.0 in order to maintain backward compatibility.
515        Typical values for SEAICE_salinity are 4 to 10 g/kg.
516      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
517      * added SEAICE_availHeatFrac, which specifies fraction of surface level
518        heat content used to melt or grow ice
519      * commented out cap of HICE: it helps keep ice thinner
520      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
521      * applied OBCS T/S mask to HEFFM sea ice mask
522    
523    checkpoint59d
524    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
525     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
526     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
527    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
528     and change default value of parameter "GM_Small_Number";
529     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
530       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
531       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
532    o pkg/ecco: cost function when applying pkg/smooth to controls
533    o pkg/ctrl: add forcingPrecond run time parameter
534    o pkg/seaice:
535     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
536     - fix bug in metric terms of u-equation in LSR solver (implicit part),
537       changes verification/lab_sea
538     - rearrange implicit part of u-equation in LSR solver to make it easier to
539       read, understand, and debug. This causes changes at the truncation level.
540     - fix (serious) bug in the boundary conditions (sign error in the implicit
541       part) of the LSR solver. Changes all LSR results.
542     - fixed problem with HSNOW initialization to avoid thick snow when AREA
543       is initilized with small values - does not change lab_sea results.
544     - added HsnowFile initialization capability
545    o pkg/smooth: addition to model/src and pkg/ctrl so allow
546     initialization of pkg/smooth and application to control vector
547    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
548    o dependencies: pkg/profiles requires pkg/cal
549    o pkg/profiles:
550     - added option ALLOW_PROFILES_GENERICGRID
551         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
552         that interpolation information (grid points and coefficients) is provided
553         within the netcdf input files.
554         -> sample matlab scripts can be found in MITgcm_contrib/gael
555         that allow you to prepare netcdf input files.
556     - also modified: cleaner include statements, cleaner error print statements,
557       cleaner stops when error, and more tests of the netcdf input files consistency.
558    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
559    o pkg/seaice:
560     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
561       requires a new routine: seaice_diagnostics_fill.F
562     - make sure that seaice does not move if not forced (pressure replacement
563       method, Hibler and Ip, 1995), changes results
564     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
565     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
566       It is turned off by default (=-1.), because it changes the results.
567     - make it possible to read AREA from a file, too.
568    
569    checkpoint59c
570    o add S/R and diagnostics for oceanic mixed-layer depth
571    o move GMRedi call after all vertical mixing schemes (including KPP)
572    o pkg/thsice:
573     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
574      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
575    o pkg/obcs:
576     - bug fix for balance code
577    o pkg/seaice:
578      - allow values of SEAICE_elasticParm > 1
579      - add new parameter SEAICE_evpTauRelax as an alternative
580        to SEAICE_elasticParm
581      - make lsr boundary conditions free slip (by default), changes result
582      - add code for no slip boundary conditions for lsr
583      - set minimum of zeta to zero (and not 4e8) (changes results)
584      - add a cap on AREA after advecting AREA if seaice_growth is not called
585    o change calculation of Visbeck K:
586      - no longer depend on tapering scheme; instead, compute slope (limited
587        by GM_maxSlope). this is equivalent to what was comuted before with
588        clipping or linear tappering.
589      - fix vertical averaging (wrong by 1/2 level)
590      - leave the old version (but will not be maintained) within
591        #ifdef OLD_VISBECK_CALC / #endif
592      - update output of exp. ideal_2D_oce
593    o change error catch in calc_r_star to improve vectorization
594    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
595      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
596    o adjoint:
597      Re-organized adjoint checkpointing according to Matt Mazloff
598      (but with modifs/completions/cleanups)
599      Storing is now bundled into large arrays to optimized I/O
600      (and second step in cleanup of the_main_loop)
601    
602    checkpoint59b
603    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
604      - export/import (between ocean & coupler) fields needed for ocean DIC.
605    o pkg/seaice:
606      - get rid of three more exchanges seaice_calc_viscosities (required
607        different loop boundaries in seaice_lsr and seaice_ocean_stress)
608      - bug fix in seaice_ocean_stress (update of lab_sea required)
609      - reduce loop boundaries to necessary minimum also in seaice_evp
610      - go back to the old way of computing deltaC/Z as the adjoint likes that
611        better
612    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
613      passive tracer to an Age Tracer) + update output.txt
614    o pkg/exf:
615      - implement A-grid / C-grid selection for wind-stress input files.
616      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
617      for now, in exf_bulk_largeyeager04.F only :
618      - change implementation for case where windspeed + 2. components wind-stress
619        are read-in. AND use rhoConstFresh to convert evap.
620    o pkg/seaice:
621      - use correct EXCH_UV for wind-forcing (on A-grid).
622      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
623        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
624    o pkg/exf:
625      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
626      EXF_INTERPOLATION:
627      - merge global_with_exf/code version of exf_interp_read.F
628        to the main code ;
629      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
630        reading the file ; Important: This options needs to be defined to recover
631        previous code.
632        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
633      - no longer loose real*8 precision along the way when using exf_iprec=64.
634    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
635      - change discretisation of evp-solver in order to avoid another exchange
636        (changes lab_sea) and clean up a little
637      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
638        help the adjoint (this also changes the results slightly)
639      - add a few "_d 0" where they had been missing in seaice_evp.F
640      - cleaning up: remove unused seaice_calc_rhs.F
641    o pkg/exf: some cleaning-up:
642      - change various "constants" into runtime parameters
643      - cleaned-up Large&Yeager04 routine which should eventually
644        replace exf_bulkformulae.F (changed names of S/R and CPP)
645        and merged various ALLOW_ATM_WIND options
646     only used with thsice pkg (in thsice_get_exf.F):
647      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
648        which are used when useStabilityFct_overIce=TRUE (= the default)
649      - change default values of ice & snow emissivity and scale downward LW
650        by ice & snow emissivity.
651    o pkg/thsice:
652     fix few little problems, in thsice_calc_thickn.F:
653      - growth vertically (and not laterally) if iceFrac == iceMaskMax
654      - melt only laterally if hIce < hThinIce (as the comments say)
655      and in thsice_extend.F:
656      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
657      - start to form ice as soon as the minimum ice-volume is reachable.
658     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
659      and cpl_aim+ocn
660    o pkg/kpp
661     - move computation of surface related input fields to KPP into a new
662       subroutine kpp_forcing_surf.F
663     - remove wrong (within bi,bj loops) EXCH calls.
664     - little cleaning (add argument myThid in last position, cvs header ...)
665     - for now, fix conservation problem by exchanging KPPviscAz (may not
666       be the best fix)
667    o pkg/seaice
668     - check for inconsistent evp parameter/cpp-flag combination
669     - remove leftover errIO flat for obsolete name list error handling
670    o OpenAD
671     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
672    
673    checkpoint59a
674    o pkg/seaice: some parameter clarifications and a little bit of clean up
675    o pkg/thsice: rename run-time parameters:
676       himin       -> hIceMin
677       himin0      -> hThinIce
678       hihig       -> hThickIce
679       i0          -> i0swFrac
680       transCoef   -> bMeltCoef
681       frac_energy -> fracMelting
682      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
683       with default values (for now) that do not change the results.
684      remove old version of thsice vars advection in pkg/seaice.
685    o in FFIELDS.h:
686      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
687      - make pLoad & sIceLoad always available (but still only used if
688         ATMOSPHERIC_LOADING is #define).
689    o pkg/kpp: replaced _KPP_RL with _RL
690    o bug fixes for vertical diffusivity computations when both KPP and
691        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
692        are no longer updating the vertical diffusivity array
693        (passed as argument) but are (re-) setting those arrays.
694    o pkg/seaice: fix bug in evp solver, while doing that
695      - change (improve?) discretization of stress computations for both
696        cgrid-lsr and evp solver
697      - add a new routine to compute strain rates
698      - the above changes lab_sea results
699      - add no slip conditions for evp solver (off by default), lsr-version
700        may follow
701      - fix exchange for shear at Z-points (does not change lab_sea)
702      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
703        (to force the user to pick a time step since there is not "safe" way
704        of choosing it)
705      - add principal stress diagnostics
706      - rearrange fields for evp a little to avoid having to call a: too many
707        exchanges and b: exchanges for stress trensor components which we do
708        not have.
709      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
710        of evp, complete rewrite for lsr case (latter is does not yet work
711        in all cases)
712    o pkg/kpp: add code to have mixing in shelf ice caverns
713      - add myThid to all kpp routines (long overdue)
714    
715    checkpoint59
716    o pkg/exf:
717      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
718        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
719      - move exf header files from lower_case.h to UPPER_CASE.h ;
720        add missing cvs Header & Name
721      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
722      - add namelist param. selectStressGridPosition, exf_monFreq
723      - retire many _CLIM routines, and remove data.exf_clim
724        + params moved to data.exf
725        + climsst, climsss now handled by exf_set_gen, i.e.
726          climss?period=0 refers to constant field,
727          climss?period=-12 to monthly forcing
728      - split up namelists in data.exf
729    o pkg/seaice:
730      - remove seaice_exch and seaice_exch_uv
731      - remove superfluous exchange of theta
732      - add myThid to seaice_budget_ocean/ice
733      - add new interface for atmospheric wind forcing (C-grid only)
734        + new routine
735        + two new field (taux, tauy for stress over ice)
736        + removed one global field (DAIRN) for C-grid case only
737    o pkg/thsise
738      - 2nd set of modifs for thsice adjoint in conjunction with exf
739    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
740    
741    checkpoint58y_post
742    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
743      vertical diffusivity, similar to that in MOM4; turned on using
744      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
745      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
746    o Added capability for 3D specification of background vertical diffusion
747      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
748      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
749      "data" file that contains the 3D vertical diffusivity coefficients.
750    o ice dynamics (pkg/seaice) with thsice thermodynamics:
751      - add code within pkg thsice to advect & diffuse sea-ice fields
752      similar to (and will replace) what has been added in  seaice_advdiff.F,
753      but: - conserving Mass, Heat & Salt.
754           - better when using non-linear advection scheme (not yet fully tested)
755           - can also be used in atmospheric set-up (for now, only the diffusion).
756    
757    checkpoint58x_post
758    o IO option for global-file compact format:
759      - add options when generating topology (utils/exch2/matlab-topology-generator)
760      - add I/O capability (pkg/mdsio).
761      - adapt utils/matlab/rdmds.m to read this format.
762      for now long-line format not yet supported by pkg/mdsio (& exch2).
763    o shelfice: add a few diagnostics
764    
765    checkpoint58w_post
766    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
767      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
768      (and replace horiVertRatio in NH code).
769      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
770                         and tutorial_plume_on_slope (sensitive to truncation)
771    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
772      directly to drive seaice model (C-grid only)
773    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
774     - reintroduce computation of wind from stress,
775     - compute tau (in exf_bulkformulae.F) from windstress averaged to
776       mass points to avoid tau = 0
777     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
778    o rdmnc.m: make it work with "global" files created with gluemnc
779    o rdmnc.m : some improvements in dealing with singleton dimension
780      (tested on all testreport mnc output files).
781    o genmake2: disable pkg/profiles if netcdf test fails.
782    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
783    o move call to cal_readparms up to make calendar parameters/variable available
784      to all packages
785    
786    checkpoint58v_post
787    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
788      useDynP_inEos_Zc tested.
789    o pkg/exf: changes to properly interpolate/mask/scale initial fields
790    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
791      and portions thereof.  See read_cs.txt for description and examples.
792    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
793      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
794      following the great-circle arc between those 2 points.
795    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
796      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
797    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
798     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
799     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
800     - still needs work (not working with some options ; efficiency to improve)
801       and serious testing.
802     - use this scheme for temperature & salinity in 2 advection test exp.:
803       advect_xy & advect_xz, respectively.
804    
805    checkpoint58u_post
806    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
807    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
808    o testreport: add option "-skipdir" to skip some test.
809    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
810      momentum calculation.
811    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
812    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
813      remove checkpoint.F and the_correction_step.F (no longer used);
814      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
815    o add option (linFSConserveTr) to correct for tracer source/sink due to
816      Linear Free surface
817    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
818    o pkg/thsice: fix reading mnc-pickups
819    
820    checkpoint58t_post
821    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
822    o pkg/mdsio:
823     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
824       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
825       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
826     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
827     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
828       either MDS_READ_FIELD or MDS_WRITE_FIELD )
829     - new S/R (to replace MDSWRITEMETA), which allows to write more
830       informations (variable names, time ...) to meta files.
831     - modify rdmds.m to give back the meta file content.
832    o pkg/diagnostics: change vertical interpolation to be safer, and more
833       flexible (define p-levels to interpolate to in data.diagnostics);
834      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
835       diagnostic pointer.
836    o pkg/seaice: more cleaning up of seaice_growth, added many comments
837    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
838    o fix multi-category seaice:
839     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
840       SEAICE_MULTICATEGORY
841     - fix short wave heat flux
842    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
843       and allow to use EVP solver. Change forward lab_sea: test both EVP
844       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
845    o Initial check-in of lab_sea adjoint
846      (very similar to natl_box_adjoint/code_seaice)
847      * used C-grid and EVP solver
848      * used KPP, GM/Redi
849      * uses inAdExact=.TRUE.
850      * gradient checks fail for both ADM and TLM
851        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
852        f.d. gradients actually seem more problematic than ADM, TLM gradients;
853        issue is related to forward mismatch between g77 an ifort
854    o pkg/seaice: overhaul of thermodynamics
855     - growth.F and groatb.F are replaced by new routine seaice_growth.F
856     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
857     - move a few global fields out of SEAICE.h into seaice_growth.F and
858       make them 2D (FICE/QNETO/ ...)
859     - remove FO (it is the same as QNETO)
860     - introduce a few local fields to avoid modifying external fields such
861       as atemp, etc.
862    
863    checkpoint58s_post
864    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
865      changed exf_set_gen.F so that
866        genperiod=0 means input file is one time-constant field and
867        genperiod=-12 means input file contains 12 monthly means
868    o CG2D: use pre-computed solver main-diagonal (stored in common block);
869      this affects truncation error ; generate new output file for exp. which
870      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
871        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
872        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
873        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
874        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
875        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
876    o start implementation of deep-atmosphere and anelastic formulation
877    o verification: remove 2nd copy of input files and use script "prepare_run"
878      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
879    o mom_common/vecinv/fluxform: fix a few initialisation isssues
880    o profiles: fix for multithreaded case
881    
882    o diagnostics: rename few diags:
883      s/'PRESSURE'/'RCENTER '/g
884      s/'TICE    '/'oceFreez'/g
885      s/'TAUX    '/'oceTAUX '/g
886      s/'TAUY    '/'oceTAUY '/g
887      s/'SWFLUX  '/'oceQsw  '/g
888      s/DIFx/DFxE/g
889      s/DIFy/DFyE/g
890      and add few ocean-forcing diagnostics:
891      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
892    o modifications to pkg/seaice/growth.F and budget.F, which change results of
893      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
894      as actual snow thickness.  It now refers everywhere to effective snow
895      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
896    
897    checkpoint58r_post
898    o modifications to pkg/seaice/growth.F, which change results of
899      lab_sea experiment: fixes pertain to melting snow over open water, to
900      masking EVAP under sea ice, and to using the correct AREA variable for
901      computations of EVAP, PRECIP, HSNOW, and GHEFF
902    o add ability to read bathy, salt, and theta using MNC (off by def)
903    o add flooding algorithm and advection of HSNOW for pkg/seaice;
904      both are turned off by default and do no change any results
905    o seaice advection with pkg/thsice: a step toward the use of non-linear
906      advection scheme, but #ifdef or commented out for now (requires more EXCH).
907  o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens  o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
908    (identical results) and the standard version of EXTERNAL_FIELDS_LOAD    (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
909    in natl_box (affects results @ truncation level: update output.txt)    in natl_box (affects results @ truncation level: update output.txt)

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