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revision 1.1980 by mlosch, Wed Apr 23 12:42:19 2014 UTC revision 1.2274 by jmc, Thu Oct 6 00:50:19 2016 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/mom_commom & generic_advdiff:
8      - add deep atmosphere and anelastic scaling factor in implicit vertical
9        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
10    o model/src:
11      - remove few unnecessary temp array copies in solve_tridiagonal.F
12        & solve_pentadiagonal.F
13    
14    checkpoint65z (2016/09/28)
15    o pkg/seaice: fix multithreading for seaice_fgmres.F
16      - remove unecessary variables from common blocks
17      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
18        basis, that are stored in commom blocks (including integer variable i1)
19      - clean up code a little by removing commented lines that refer to
20        original code
21      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
22    o MITgcm manual:
23      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
24        preliminary documentation for generic controls (8.3; ctrl.tex),
25        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
26        ecco_costfunction.tex
27    o pkg/ecco:
28      - update and cleanup list of CCP options
29      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
30        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
31      - add checks that retired run-time options are not used, and in relation
32        to gencost_mask and gencost_errfile
33      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
34        gencost_nrecperiod
35      - fix m_eta computation for virtual salt flux case
36      - add m_horflux_vol case (selected via gencost_barfile) that computes
37        transports via cost_gencost_boxmean (gencost_flag=-3)
38      - use gencost_flag more systematically (i.e., avoid using gencost_name)
39        for code switches (aside from physical variable selection)
40    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
41      attempt appears to be a bit of a hack and my need some repair down the road
42    o pkg/exf:
43      - interpolation near South Pole: fix criteria on input field latitude.
44    o pkg/icefront & pkg/exf:
45      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
46        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
47    o pkg/exf:
48      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
49        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
50        (add suffix "_out" instead of a prefix); keep same record number as in
51        input file but always write record 1 first (to avoid a STOP in I/O S/R).
52        Change output file content by writing interpolated field before applying
53        land-sea mask (helpful for debug).
54      - 2 compon. vector interpolation with rotation: apply scaling factor on
55        each compon. (Eastward and Northward) just before rotation.
56    o pkg/bling:
57      - Cleaned package. Removed not needed code and comments.
58      - adjoint example now works
59        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
60    o pkg/ptracers:
61      - add Bruno Deremble's code to complete the linear surface correction
62        for tracer conservation;
63      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
64    
65    checkpoint65y (2016/07/29)
66    o pkg/debug (stats):
67      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
68        proc/thread mapping);
69      - fix Min & Max for case where 1 thread has only empty tiles;
70      - use RL variable to count number of wet grid points (with big domain,
71        can be too large to fit into integer*4).
72    o pkg/monitor:
73      - use RL variable to count number of wet grid points (but used only for del2)
74      - add new routine to compute Advective CFL within tracer time-stepping with
75        writing delayed until next monitor output.
76    o pkg/obcs:
77      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
78    o pkg/cal:
79      - calandar-dump: treat case myTime < timePhase in the same way as in
80        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
81    o pkg/dic & seaice:
82      - fix compilation of ocean component for coupled atm+ocn model with
83        seaice dynamics & dic.
84    
85    checkpoint65x (2016/06/11)
86    o add a license text file in main MITgcm tree.
87    o added pkg/bling:
88      - intermediate complexity biogeochemical model
89      - see bling_description.txt for details
90      - verification experiment is global_oce_biogeo_bling (for now, in
91        Contrib/verification_other/); tested daily on baudelaire with gfortran.
92      - add entry point in pkg/gchem for new pkg "bling".
93    o pkg/seaice: fix tensile stength computation
94      - replace global field tensileStrength by tensileStrFac
95      - tensileStrFac can be computed once in S/R seaice_init_varia
96      - fortunately that does not affect any verification results
97    
98    checkpoint65w (2016/05/12)
99    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
100         with ECCO_CTRL_DEPRECATED defined
101    o verification/global_ocean.cs32x15:
102      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
103        with "selectNHfreeSurf=1".
104    o model/src (non-hydrostatic free-surface):
105      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
106        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
107      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
108        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
109        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
110        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
111      - Update output (changes at machine truncation level) of verification exp:
112        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
113        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
114    o pkg/seaice: ITD code
115      - fix picking up from a single category model by initialising
116        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
117      - split a long warning message in seaice_check_pickup.F into two lines,
118        because NEC SX-ACE cannot deal with the long line.
119    o model/src:
120      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
121    o pkg/seaice:
122      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
123    o pkg/seaice:
124      - add basal stress as parameterisation for grounding ice
125        following Lemieux et al. (2015)
126      - turn on by setting new parameter SEAICEbasalDragK2 to a value
127        larger than 0. Lemieux et al. (2015) recommend 15.
128      - The adjoint complains with extra recomputations so there is also a
129        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
130        order to postpone the problem
131      - compile the new code in lab_sea
132    o verification/halfpipe_streamice:
133      - update both TAF and OpenAD adm output (machine truncation differences)
134    
135    checkpoint65v (2016/04/08)
136    o verification/advect_xz:
137      - increase overlap size from 3 to 4 and add new secondary test for PQM
138        advection scheme (with mono & wino limiter).
139      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
140    o model/src:
141      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
142        added phi0Ref) to set vertical axis origin and phiRef origin;
143        keep Ro_SeaLevel for backward compatibility (with a warning).
144       According to coordinate and fluid type:
145        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
146        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
147        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
148        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
149      - remove Ro_SeaLevel from ATM experiment parameter files;
150      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
151        complement; update output.txt (changes at machine truncation level).
152    o pkg/seaice/seaice_evp.F
153      - simplify computation of deltaZ and zetaZ to simple averaging following
154        Bouillon et al. (2013). This removes a lot of code, but also changes
155        verification experiment lab_sea.hb87 -> updated
156    
157    checkpoint65u (2016/03/14)
158    o pkg/generic_advdiff:
159      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
160        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
161        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
162        testing and not for actual use.
163    o model/src:
164      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
165        origin r = rF(1);
166      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
167        in EOS for height coordinate: enable to include NH Pressure or to use
168        more accurate pressure vertical profile; options not linked to EOS type
169        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
170      - start to implement variable gravity (along vertical): for now, only with
171        z-coords (not even z*).
172      - add Ideal Gas equation of state for height coordinate.
173      - update OpenAD output (affected at machine truncation level) of exp:
174        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
175    o pkg/exf:
176      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
177        of exf interpolation (before any rescaling, rotation or interpolation
178        to velocity point) for each field that gets loaded from file. This option
179        identically mimics the input file organization (e.g. record numbers in year
180        by year input files) besides the change in horizontal grid.
181      - add rotateStressOnAgrid run-time switch so that wind stress fields
182        can be provided on the A-grid in zonal/meridional direction and
183        rotated on the fly. This only applies to the case when the exf
184        interpolation is off and rotateStressOnAgrid is false by default.
185    o model/src:
186      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
187        it's also used with pkg/atm_phys) and add few more parameters (but still
188        inactive, src code yet to come)
189    
190    checkpoint65t (2016/02/10)
191    o pkg/atm_phys:
192      - from Ruth Geen: add optical depth dependence on CO2 concentration.
193    o model/src:
194      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
195        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
196        Update output of exp. deep_anelastic (changes at truncation level).
197    o tools:
198      - add a hack in "remove_comments_sed" (used only with TAF) for recent
199        version of OpenMPI (shipped with FC.23): comment out the new header
200        file "mpif-sizeof.h" which causes problems to TAF.
201    o pkg/seaice:
202      - change the termination criterion so that maxits (SEAICElinearIterMax)
203        has an effect
204      - unify iteration parameters for implicit solvers (JFNK and Picard)
205        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
206        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
207        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
208        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
209        SEAICEnonLinTol     replaces JFNKgamma_nonlin
210      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
211      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
212        use with SEAICEuseKrylov
213    o pkg/seaice/seaice_lsr.F
214        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
215        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
216        an effect.
217    o pkg/seaice: add two new parameters
218      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
219        parameter is not in any namelist)
220      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
221        a preconditioner for the non-linear Newton iteration of the JFNK
222        solver
223    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
224      affects some experiments at truncation level:
225      - global_ocean.cs32x15.icedyn (11 digits),
226      - global_ocean.cs32x15.seaice (11 digits),
227      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
228      - also update global_ocean.cs32x15 adjoint and tangent-linear results
229    o pkg/salt_plume & pkg/thsice:
230      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
231        connect salt_plume flux to ATM-OCN coupling pkgs interface:
232       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
233         export to coupler interface) even without compiling pkg/salt_plume ;
234       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
235         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
236    o pkg/dic:
237      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
238        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
239        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
240      - move also update with values from ATM-OCN Coupler in the same new S/R
241        (previously done in ocn_apply_import.F).
242    o tools/adjoint_options:
243      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
244        has been changed on Jan 14, 2016.
245    o pkg/ggl90:
246      - add alternative discretisation of vertical shear (off by default), to
247        compute the mean (@ grid-cell center) of vertical shear compon instead of
248        vertical shear of mean flow (@ grid-cell center).
249      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
250        results on adjacent faces of cubed-sphere grids; this fix the restart.
251    o pkg/atm_compon_interf:
252      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
253        pass last value, stored directly before export to CPL ;
254        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
255      - remove atmSLPr from pickup files (no longer needed for restart)
256    
257    checkpoint65s (2016/01/13)
258    o eesupp & genmake2:
259       - first check for Function ETIME and, if it fails, then check for subroutine
260         ETIME and consistent output; use the appropriate version in timers.F
261    o model/src:
262      - to check restart test, add option to apply EXCH to U,V earlier, just before
263        integr_continuity; turned off by default.
264    o pkg/dic:
265      - remove CPP option USE_ATMOSCO2 (not needed)
266    o tools/tst_2+2:
267      - try to ignore difference between +0 and -0 in binary file, causing test
268        to fail for no good reason.
269    o eesupp & genmake2:
270      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
271        but also check (in genmake2) that test runs and returns meaningful results.
272    o coupler pkgs:
273      Finish implementation of optionally-exchanged variable switches (started on
274       Nov 12) with addition of few more exchanged fields, including 2-way exchange
275       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
276       advection in OCN component; this requires sequential coupling.
277      coupler (pkg/atm_ocn_coupler):
278      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
279        routines (useful for debug).
280      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
281         flux, DIC fields) if corresponding switch is ON.
282      - add option to export RunOff to OCN (to use for DIC river input)
283      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
284      components (pkg/atm_ & ocn_compon_interf):
285      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
286        optionally exchanged fields; add a check & stop in cpl_readparms.F.
287        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
288        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
289      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
290        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
291      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
292      - hold in common block coupler optionally-exchanged variable switch
293        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
294      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
295        this is intended to replace the OCN cplFldtave.* output files (not updated
296        to contain new additional exchanged fields).
297    o pkg/dic:
298      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
299    o pkg/thsice:
300      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
301        and writing of thsice pickup files.
302    o pkg/atm_compon_interf:
303      - move all field individual export-call out of cpl_export_import_data.F
304        into new S/R ATM_EXPORT_FIELDS
305    o pkg/atm_compon_interf:
306      - store state variables (for now, only thSIce fields) just before beeing
307        exported (in cpl_export_import_data.F, like on ocean side) instead of from
308        atm_store_my_data.F like all exported fluxes.
309      - new version of pickup_cpl: write field names into meta file and read meta
310        file to find field postion in pickup. Also only write/read fields meeded for
311        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
312    o pkg/dic:
313      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
314    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
315        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
316        value can be from domain [0,1] to average between the two methods
317    o pkg/atm_phys:
318      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
319        hold fixed in time).
320    
321    checkpoint65r (2015/12/21)
322    o pkg/seaice:
323        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
324        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
325    o pkg/seaice:
326      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
327        when SEAICEscaleSurfStress=.TRUE.,
328      - apply areaW and areaS in S/R seaice_calc_lhs
329    o pkg/atm_phys:
330      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
331        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
332        for individual contribution (convection, LSC cond, radiation)
333      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
334        information); activated with: solar_exponent=0. and wv_exponent=-1.
335    o pkg/ggl90:
336      - within IDEMIX add upper limit for horizontal group velocity to
337        avoid instability problems in the explicit horizontal diffusion term for
338        long time steps or high resolution
339    o pkg/diagnostics:
340      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
341        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
342    o testreport:
343      - remove "-v" (verbose option) in default mpirun command.
344    o pkg/seaice/seaice_growth:
345      - catch potential division by zero in ITD code, does not change
346        verification results
347    o pkg/ecco:
348      - retire old codes to the Attic. The calls to retired functions are
349        left in a commented form in case they ever need to be re-activated.
350      - ecco_check.F: issue warning if any old CPP option is
351        defined that corresponds to retired codes -- then stop.
352    o pkg/atm_compon_interf:
353      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
354        coupler: use last time-step value instead of average over cplSendFrq_iter
355        time-step, similar to what is done for seaIceMass.
356        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
357    o eesupp & genmake2:
358      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
359        <= remove until a fix is found for some ifort version on ia32 machine.
360    o pkg/seaice/seaice_evp:
361      - refine residual computation
362    
363    checkpoint65q (2015/11/18)
364    o pkg/seaice/seaice_evp:
365      - fix residual computations so that they no longer affect the actual
366        simulation code
367      - fix seaice_readparams to be able to actually set new parameters
368        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
369    o model/src:
370      - fix wrong truncation (single prec) from "FLOAT" function in expressions
371        like: deltaT*FLOAT(myIter) when myIter is large:
372         a) replaced by DFLOAT (if not seen by TAF);
373         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
374    o pkg/aim_v23:
375      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
376        when pickupSuff is set ; do write rolling pickups + at the end of the run.
377    o pkg/atm_ocn_coupler + ocn_compon_interf:
378      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
379        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
380        add corresponding call in DO_OCEANIC_PHYS.
381    o coupler pkgs:
382      Start a new way to set-up optionally-exchanged variables (previously, only
383       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
384       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
385       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
386       compononent param default can be set accordingly).
387      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
388       but rather applies to a group a fields (going both ways like for DIC)
389       and corresponds to an option of coupling config.
390      coupler (pkg/atm_ocn_coupler):
391      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
392        and read namelist directly (without eessup S/R calls) instead of
393        in the very un-flexible old way, 1 param per line, in fixed order;
394      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
395        cleanly in CPL_CHECK_CPLCONFIG
396      - add new coupling-exchange selectors (some not yet active) including
397        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
398                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
399      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
400        component ; called directly from coupler.F, after comp. registrations;
401      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
402         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
403          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
404      components (pkg/atm_ & ocn_compon_interf):
405      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
406        CPP header file in all pkg source files.
407      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
408        ATM/OCN_CHECK_CPLCONFIG;
409      - add error-counter to track errors (e.g., in "data.cpl") and to stop
410        cleanly in ATM/OCN_CHECK_CPLCONFIG;
411      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
412        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
413        before PACKAGES_READPARMS;
414      verification/cpl_aim+ocn/:
415      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
416        "data.cpl" for coupler (in input_cpl).
417    o eesupp/inc:
418      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
419        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
420        to always cumulate tile local-sum in the same order (still uses
421        MPI_Allreduce like standard code).
422      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
423        that are now identical to standard version (in eesupp/inc).
424    o pkg/shelfice:
425      - add SHELFICETransCoeffTFile for initializing spatially varying
426        heat and salt transfer coefficients
427    o pkg/atm_compon_interf & ocn_compon_interf:
428      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
429        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
430      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
431    o pkg/atm_ocn_coupler:
432      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
433    o pkg/rbcs:
434      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
435        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
436      - add a short report (to STDOUT) about RBCS-mask settings.
437    
438    checkpoint65p (2015/10/23)
439    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
440        there is no adjoint test for EVP, we don't know what it does to the adjoint
441        solution, but at least there are no more recomputation warnings left
442    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
443        a chance of giving the same results as a fully converged VP (JFNK) solver
444    o tools/adjoint_options/adjoint_diva:
445      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
446    o pkg/streamice:
447      - spotted bug in streamice_driving_stress using dyG where should have been dxG
448    o pkg/exf:
449      - remove STOP statement that prevented to use wind or (wind-)stress
450        interpolation for constant-in-time forcing fields (wind/stress period = 0).
451    o pkg/seaice:
452      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
453        5 additionals 2D fields and 6 new store directives
454      - change logic in seaice_readparms.F: EVP code can now be turned on in
455        various ways, setting SEAICE_deltaTev is no longer required,
456        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
457        or SEAICEaEVPcoeff
458    o pkg/shelfice/shelfice_thermodynamics.F
459      - redefining uLoc/vLoc to u/v, instead of 2u/v
460    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
461      - this is an intermediate state of a truely converging EVP that has
462        the potential of outperforming implicit VP methods, I do not recommend
463        using it yet.
464      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
465        and all parameters are hardwired
466      - for convergence it still requires very smooth regularisations, that means,
467        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
468        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
469        specific averaging appears to be required, still subject to tuning
470      - still needs cleaning and I need to turn parameter into runtime parameters
471      - add code to compute and print residuals of iteration, compile with
472        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
473    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
474      that entered with r1.54 on Sep04, 2015, -> update results
475    
476    checkpoint65o (2015/09/14)
477    o pkg/mom_vecinv & mom_common:
478      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
479        called from there.
480      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
481        allows to use Vector-Invariant form in deep atmos and anelastic formulation
482    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
483      and Koenig-Beatty+Holland (2012)
484      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
485      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
486      - requires an extra input argument for S/R seaice_calc_viscosities
487      - tensileStrength's depth dependence is different from Itkin et al. (2015)
488        (to be changed and played with, for now exponential)
489    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
490      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
491        by AREA according to Connelly et al. (2004), JPO.
492      - For EVP and the LSR solver, the implicit part of the drag term is
493        the only non-zero term in the denominator when there is no ice (which
494        prevented running the model with zero ice-ocean drag). If
495        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
496        (or zero main diagonals BU/BV) which need to be caught. A practical
497        consequence is that for open water, the momentum equation reduce
498        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
499        they happen to be zero, often leading to a non-zero solution over
500        open water.
501    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
502        efficient EVP method.
503      - introduce area-weighted averages for e12 (analogously to
504        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
505        remain, but also changing the order of terms in the previous average
506        changed the results as much) -> update experiment
507      - add SEAICE_DELTA_SMOOTHREG code
508      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
509        TEM-code
510      - adjust loop bounds so that only required fields are computed
511      - add new averaging code for zetaZ/deltaZ (again similar to
512        seaice_calc_viscosities.F), inactive by default for now (will change
513        results again), but will replace old code eventually
514    o eesupp/src:
515      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
516        to always cumulate tile local-sum in the same order
517        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
518        Still uses MPI_Allreduce (like standard code) but on array of tiles
519        and should be faster than GLOBAL_SUM_SEND_RECV code.
520      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
521        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
522      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
523         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
524         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
525         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
526         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
527    
528    checkpoint65n (2015/07/29)
529    o pkg/thsice:
530      - add a warning when used with pkg/aim but without updating SST
531        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
532    o pkg/offline:
533      - change where Offline-Fields are loaded, from load_fields_driver.F to
534        directly within FORWARD_STEP, just after updating iter number and time;
535      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
536        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
537       These changes allow:
538        a) to recover exactly on-line results using deltaToffline=deltaTClock,
539        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
540        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
541        time-step, both with GM & KPP files and with recomputing these fields;
542        b) no needs to switch on staggerTimeStep anymore;
543        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
544      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
545    o pkg/offline:
546      - change (rarely used) offset-iteration parameter to an offset time (in s):
547        can easily recover previous offset-iter effect by setting offset-time
548        (offlineTimeOffset) to offset-iter x deltaToffline;
549      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
550        in KPP as part of surface buoyancy forcing) in offline run.
551      - fix ptracers KPP non-local term in the case where KPP is re-computed.
552    o OpenAD
553      - Adding preliminary ggl90 test to OpenAD verification.
554        Config. with ggl90 currently diverges after 64 time steps
555        so will need more work to become more stable
556      - Adding preliminary kpp test to OpenAD verification.
557        required small tweakes in kpp_routines.F
558      - Merge and update from Krishna Narayanan's contrib area:
559        * Add one variable for preliminary OpenAD DIVA
560        * Add replacement time-stepping for OpenAD DIVA
561        * genmake2 flag -diva (but only for OpenAD; preliminary)
562        * required modifs for OAD_support
563        successful preliminary test for tutorial_global_oce_biogeo/
564    o pkg/seaice:
565      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
566      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
567        delta with a smooth function in s/r seaice_calc_viscosity
568        (no effect on EVP)
569      - rename local suffix "sqr" into "sq" for more consistent variable names
570    o pkg/seaice:
571        add new parameter SEAICE_deltaMin that is used ***only***
572        for regularizing Delta (and nothing else, like the parameter
573        which is also used for all sorts of things SEAICE_EPS).
574        Defaults to SEAICE_EPS for backward compatibility only.
575    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
576        the wrong key by inialising it before use -> fixes a recomputation
577        problem but does not fix the gradient
578    o pkg/layers:
579      - move resetting of flux arrays to outside the iLa loop
580        (this caused layers_diapycnal to not work with more than one layer coord.)
581      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
582    o pkg/layers:
583      - remove from common block 3D layers fields (used to diagnose transport
584        in tracer coords) and declare them as local arrays in layers_calc.F
585    o pkg/seaice:
586      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
587        in lab_sea forward experiment (changes results -> updated)
588      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
589    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
590       computations; for SEAICE_VECTORIZE_LSR
591      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
592        sweep to the outside,
593      - remove store directives and add "CADJ loop sequential" directives
594        in analogy to model/src/solve_tridiagonal.F
595      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
596        boundaries to yield more readable code. This has also the charming side
597        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
598        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
599        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
600        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
601        an additional option)
602       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
603       but the adjoint gradients (which are affected by this change) still explode.
604    o coupler (atm & ocn _compon_interf):
605      - avoid using Exch2 IO mapping if not suitable.
606    
607    checkpoint65m (2015/06/15)
608    o pkg/layers:
609      - clean-up old parameters setting (from Sep 2012):
610        + remove old parameters setting from common block (declared locally);
611        + stop if any old parameter is mixed with new parameters;
612        + check for valid or consistent parameter setting (e.g., layers_name)
613      - check that layers_bounds for Pot.Density are in the right range;
614        this is supposed to catch un-updated setting after recently shifting
615        potential density field "prho" by -1000 (now in "sigma" scale).
616    o pkg/layers:
617      - Added missing call to layers_fill for keeping track of tottend in
618        pkg/diagnostics/diagnostics_fill_state.F
619    o pkg/layers:
620      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
621        of diapycnal fluxes
622    o pkg/layers:
623      - reverted changes to interpolation to previous treatment; there
624        was never actually a problem
625    o pkg/layers:
626      - fix interpolation of layers tracers in the presence of partial cells
627      - add lots of new functionality to compute water mass transformation
628        (enabled by CPP flag LAYERS_THERMODYNAMICS)
629      - add new calls from main code (diags_oceanic_surf_flux.F,
630        thermodynamics.F, impldiff.F) and gad to save the necessary fields
631        for layers_thermodynamics calculations
632    o pkg/ptracers:
633      - add capability of stepping a passive tracer forward without advection
634        by setting PTRACERS_advScheme to 0.
635    o pkg/diagnostics:
636      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
637    o pkg/layers:
638      - shift potential density field "prho" by -1000 for density layer averaging so
639        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
640        Note that density bin boundaries (layers_bounds in data.layers) have
641        to be set accordingly (i.e., shifted, in sigma scale).
642    o pkg/layers:
643      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
644      - fix calculation of layer non-weighted velocity and layer probability
645      - add diagnostics for pot.density used for layer averaging
646    o pkg/seaice:
647      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
648        positiveness, modify a few comments and improve variable names,
649      - the changed computation of deltaC affects most seaice-related
650        experiments at the truncation level.
651        seaice_itd.thermo is affected by far the most, with
652        only 7 digits of agreement remaining; update experiments.
653    
654    checkpoint65l (2015/05/04)
655    o pkg/shelfice:
656      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
657        factor drKp1 to zero where it is negative (ie. do not use
658        SHELFICEBoundaryLayer if hFacC>1)
659      - the same for factor drLoc in shelfice_forcing.F
660    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
661        with modules in ptracers, when using testreport option "-small_f"
662    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
663      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
664    o verification/testreport
665      - add new option -small_f
666        with this option testreport first makes the target small_f (*.f files)
667        before running make (all). This is useful for explicit inlining when
668        all sources need to be full available.
669    o pkg/exf/exf_interp.F:
670        remove previous changes related to reverse (decreasing) input grids latitude
671    
672    checkpoint65k (2015/04/01)
673    o pkg/ecco:
674        fix missing cosphi initialization; use eccoiter in place of optimcycle;
675        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
676        instead of active read/write
677    o pkg/ctrl:
678        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
679        instead of active read/write.
680    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
681        return if .NOT.useAUTODIFF
682    o pkg/seaice: add CPP brackets (cost function related).
683    o model/src:
684        add useAUTODIFF run time switch.
685    o pkg/exf/exf_interp.F:
686        add code to allow input grids with latitude starting in the north (i.e. when
687        j=1 corresponds to northern edge of field); modify global_with_exf to test
688        this feature.
689    o verification/testreport:
690      - replace "grep -A3" with POSIX conformal sed command, because there are
691        implementations of grep that cannot do contextual searches
692      - replace "cat -n" by "nl" (two occurrences), because not all implementations
693        of "cat" have the option "-n"
694    o model/src:
695        add new file gsw_teos10.F that contains 3 functions, more or less a copy
696        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
697        convert from conservative to potential temperature. For now they are not
698        called anywhere.
699    o pkg/ggl90: make "useIDEMIX" useful
700      - re-organize code in s/r ggl90_calc a little to move computations that
701        are different for idemix into separate loops (changes verification
702        experiment idemix at truncation level, 12 digits remain -> updated)
703      - requires 2 new 2D fields KappaM, verticalShear
704      - make hFacI and recip_hFacI local 3D variables that are passed to
705        s/r ggl90_idemix
706      - fix and improve some comments
707    
708    checkpoint65j (2015/02/25)
709    o pkg/openad
710      - synchronize seawater.F with version in model/src: replace routine
711        body of sw_temp by calling sw_ptmp and fix/add a few comments.
712    o pkg/mnc:
713      - change default value of pickup_read/write_mnc params to FALSE
714        (since few features are missing in reading MNC pickup files).
715    o model/src:
716      - change default (background) vertical diffusivity for salt to be the
717        temperature (background) vertical diffusivity.
718      - change background vertical diffusivity in vertical mixing pkgs ggl90,
719        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
720        This makes ptracers default diffusivity (that uses salt diffKr) more
721        consistent with vertical mixing schemes.
722    o verification/testreport:
723      - fix typo in "-pcls" option ;
724      - put temp files in /tmp (instead of in local dir)
725      - add option "-ncad" to use genmake2 new option "-nocat4ad"
726      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
727    o pkg/ggl90 (idemix code):
728      - apply few fixes ; add some missing "_d 0" ; update output of exp.
729        global_ocean.90x40x15.idemix
730    o OpenAD
731      - enable active file I/O and begin removal of work-around code
732        for OpenAD for handling control variables (memory vs. active files)
733      - new CPP options file OPENAD_OPTIONS.h
734      - revert to genarr2d gradient check for hs94.1x64x5
735      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
736      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
737    o tools/genmake2:
738      - add option for an alternative Makefile (from Martin) where multiple
739        source files are sent to TAF (instead of all in one file).
740    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
741      - code provided by Carsten Eden as an extension of ggl90
742      - so far the code is turned on within ggl90 by setting a CPP-flag at
743        compile time; a runtime flag implementation is not yet complete
744      - tested in new verification experiment global_ocean.90x40x15.idemix
745    o verification:
746      - reduce length of the AD test run by half for experiments
747        global_ocean.cs32x15 (std + thsice) and isomip
748      - enable active file I/O for OpenAD, adjust verifications accordingly
749      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
750    o verification/testreport:
751      - fix two non-POSIX sed statements so that there are no error messages
752        on Mac OS X
753      - replace hostname -s with hostname | sed 's/\..*$//'
754    o model/src/seawater.F:
755      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
756        (following the matlab code), which would have avoided the bug caught
757        by Matt (see below) in the first place
758    o pkg/shelfice:
759      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
760        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
761      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
762        ice-shelf case (i.e., within surface level).
763      - add config summary in shelfice_check.F
764      - remove global variable recip_SHELFICElatentHeat and replace by a local
765        variable recip_latentHeat
766      - introduce diagnostics for friction velocity uStar (in case of
767        SHELFICEuseGammaFrict)
768      - change verification experiment isomip.htd:
769        + start from pickup (as input_ad at nIter0=8640)
770        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
771        + test SHELFICEuseGammaFrict = .TRUE.
772        + test SHELFICEadvDiffHeatFlux = .TRUE.
773    o model/src:
774      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
775        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
776        update output of experiments global_with_exf.yearly and isomip (all 6).
777    o pkg/shelfice:
778      - change setting of kTopC to also be zero where there is no ice-shelf.
779      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
780        ice-shelf is.
781      - first attempt to get RealFreshWaterFlux effects: for now, only without
782        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
783    o pkg/seaice: add the option to prescribe a fixed thickness PDF
784      for thermodynamic calculations
785      - because of divisions of the type 7/7 not exactly equal to 1, this change
786        affects results of some verification experiments by up to 4 digits:
787        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
788        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
789        adjoint: lab_sea, lab_sea.noseaicedyn
790        -> updated
791    
792    checkpoint65i (2015/01/23)
793    o model/src:
794      - change units of frictionHeating field from W to W/m^2
795      - fix bug in frictional heating from stratospheric drag in
796        S/R ATM_PHYS_TENDENCY_APPLY_V
797      - with synchronous time-stepping: move resetting to zero of frictionHeating
798        field from load_fields_driver.F to thermodynamics.F ;
799      - add diagnostics for frictional heating.
800    o model/src & gmredi K3D:
801      - add frictionHeating field to pickup-files (for synchronous time-stepping)
802      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
803      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
804        and name in pickup file).
805      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
806    o model/src:
807      - move (from ini_forcing.F) initialisation of all arrays in header file
808        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
809        (since Nov 2012) with option selectAddFluid=1.
810    o pkg/shelfice:
811      - change units (+ document) of newly added field "shelfIceMassDynTendency"
812      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
813    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
814    o pkg/seaice: two new runtime parameters:
815      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
816        long overdue
817      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
818        parameterization of tensil stress for fast ice (does not do anything yet)
819    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
820        for LSR: move checking overlaps out of JFNK-if-block
821    o pkg/atm_phys:
822      - move copy of grid and dynamical fields out of atm_phys_driver.F into
823        new S/R ATM_PHYS_DYN2PHYS.
824      - fix level height for Linear Free-Surf case (to be consistent with
825        fixed-in-time pressure levels).
826    o pkg/mom_common (bottomdrag):
827      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
828        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
829        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
830    o pkg/shelfice (u/v_drag):
831      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
832      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
833        (now similar to shelfice_u_drag.F)
834      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
835        from mom_vecinv.F (similar to mom_fluxform calls).
836    o pkg/mom_common (bottomdrag):
837      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
838      - add options for alternative discretisation of velocity norm in quadratic
839        bottom drag: averaging of grid-cell-center KE to U.point and V.point
840        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
841        improves when averaging only the other component (e.g. vVel for U bottom
842        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
843      - add options (bottomVisc_pCell) to account for partial-cell in bottom
844        friction (no-slip BC) thus getting the true distance from the bottom;
845        off by default since this also reduces model stability (explicit bottom
846        friction). Changes produce different machine truncation with linear-drag
847        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
848        front_relax (bvp & mxl, 10 & 11 digits).
849    o model/src & mom pkgs:
850      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
851        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
852      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
853        just copy level Nr value to level Nr+1.
854    o doc:
855      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
856    o pkg/shelfice:
857      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
858        SHELFICE.h: move array shelficemass to init_varia, initialise
859        from array shelficemassinit, which is set in init_fixed and
860        has option to be set from file; introduce array
861        shelficeMassDynTend array, set thru file in init_fixed
862      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
863        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
864        pkg/streamice
865      - shelfice_thermodynamics.F: call shelfice_step_icemass if
866        SHELFICEMassStepping = .true.
867      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
868    
869    checkpoint65h (2014/12/17)
870    o verification/global_ocean.90x40x15, global_ocean_ebm:
871      - update to generic controls.
872    o pkg/ctrl:
873      - ctrl_map_ini_genarr.F: test for igen>0
874      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
875      - move gentim2d part of ctrl_map_ini_genarr.F to
876        new separate routine : ctrl_map_ini_gentim2d.F
877      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
878        add time variable weights and cyclic controls (time mean,
879        seasonal cycle, etc) capabilities to gentim2d
880    o pkg/ecco:
881      - move reading of error, conversion to weights from
882        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
883    o global_oce_llc90, cs32:
884      - activte sbo.
885      - CTRL_SIZE.h : add maxCtrlProc.
886      - activate the new genctrl capabilities.
887      - update following reorganization of global_oce_input_fields.tar.gz  
888    o pkg/ctrl/ctrl_ad_diff.list:
889      - add missing ctrl_init_rec.f
890    o tools/OAD_support/keepOriginal:
891      - add ctrl_init_rec.F
892    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
893      - avoid recomputations of xx_gentim2d_dummy.
894    o momentum diagnostics:
895      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
896        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
897    o pkg/seaice/seaice_lsr.F:
898      - fix computation of BU/BV, make sure they are non-zero, only necessary
899        for cubed sphere exchanges and SEAICE_OLx/y>0.
900        This makes calling s/r fill_cs_corner_rl obsolete (removed).
901    o verification/global_ocean.cs32x15/input.seaice
902      - add test for strong implicit coupling and restricted addtive Schwarz
903        methods for LSR
904      - update results/output.seaice.txt
905    o verification/tutorial_global_oce_biogeo:
906      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
907        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
908        update output_adm,_oadm,_tlm.txt
909    o pkg/dic:
910      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
911      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
912        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
913    o verification/tutorial_global_oce_biogeo:
914      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
915        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
916        update output_adm,_oadm,_tlm.txt
917    o eesupp/src:
918      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
919        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
920    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
921      LSR (following Hutchings et al. 2004)
922      - introduce zetaZ as a global variable (requires adjustments in
923        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
924        in seaice_calc_viscosities.F
925      - new flag SEAICEuseStrImpCpl (default off)
926      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
927        momentum equations
928      - JFNK-solver (preconditioner) adjusted to allow using this method
929        (where it does not have any positive effect)
930    o pkg/seaice
931      - add overlap for restrictive additive Schwartz method also to LSR, but
932        turn it off by default (because it only seems to work for non-cubed
933        sphere/llc topologies)
934    o pkg/autodiff
935      - add extra exchanges in addummy_in_steppging also for mnc output
936    o pkg/seaice:
937      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
938        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
939    o pkg/obcs:
940      - add option to specify domain-connected piece Id along OB though files
941        (for now, only used to diagnose PhiVel; default =1 -> global correction)
942      - modify obcs_diag_balance.F to process each connected-part separately;
943        exclude OB where Id = 0 but keep the full divergence there (-> constant
944        Psi along this portion of OB and all inflow derived from grad(Phi))
945      - add example of OB-conect files in verification/so_box_biogeo/input.
946    o pkg/diagnostics:
947      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
948      a) use non zero matrix element across OB and solve for Phi 1 grid point
949         outside OB (i.e, where tracer OBCS are applied).
950      b) global imbalance of inFlow/outFlow across OB: instead of modifying
951         velocity across OB, spread it uniformly along the OB in the RHS.
952    
953    checkpoint65g (2014/11/19)
954    o pkg/diagnostcis:
955      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
956    o pkg/my82,pp81,kl10:
957      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
958        field diffKr as background diffusivity to set minimum diffusivity value.
959    o pkg/seaice:
960      - add new parameter SEAICEuseEVPrev (for revisited EVP by
961        Bouillon et al 2013)
962      - add SEAICE_evpAlpha/Beta to namelist
963      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
964        involve trivial re-ordering of divisions/multiplications that should not
965        have any effects, but ... they do change the results of lab_sea.hb87 so
966        that only 2 digits of agreement remain, in line with the general
967        instability/fragility of the evp-code. For now, I do not care and just
968        update the verification experiment
969    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
970      - remove xx_genarr2d_numsmooth etc
971      - use xx_genarr2d_preproc etc instead
972      - carry out smooth_correl2D at initialization stage rather than during
973        time stepping.
974      - get smoothOpNb from xx_gentim2d_preproc
975    o global_oce_cs32 :
976      - add test of generic ecco capabilities.
977    o pkg/exf/exf_getsurfacefluxes.F :
978      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
979    o pkg/ctrl,ecco :
980      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
981        is defined.
982    o pkg/seaice: add diagnostics for Delta (deformation parameter)
983    o model/src:
984      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
985        diffusivity (background) is specified but ignored.
986    o verification:
987      - in testreport, convert hostname to lower case for default output dir name
988    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
989    o pkg/dic: add modifications from Hajoon:
990      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
991      - light attenuation: add self-shading effect by climatological Chlorophyll
992        (read from file).
993    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
994        compiles when SEAICE_ALLOW_DYNAMICS is undefined
995    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
996        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
997        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
998        approach where CPP_OPTIONS.h includes an omnipotent
999        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1000    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1001        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1002    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1003        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1004        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1005    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1006      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1007      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1008      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1009      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1010    o pkg/ctrl,ecco,exf :
1011      - remove variables associated with NON-generic costs,
1012        unless ECCO_CTRL_DEPRECATED is defined.
1013      - remove NON-generic NON-obcs controls,
1014        unless ECCO_CTRL_DEPRECATED is defined.
1015    o pkg/ctrl : added ctrl_local_params.h
1016    o pkg/ecco : added ecco_local_params.h
1017    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1018        experiments, which will progressively be removed once the
1019        experiments are revised to use only generic controls/costs.
1020    
1021    checkpoint65f (2014/10/13)
1022    o pkg/ctrl, ecco, seaice : minor changes in headers
1023    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1024        cost function and control capabilities added since checkpoint65c.
1025    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1026    o pkg/ecco: increase modularity and improve logic
1027      - ecco_toolbox.F (new) : basic operations that are often used,
1028        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1029        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1030      - cost_gencal.F (new) : determine filnames and records.
1031      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1032      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1033        and exploit the above functions leading to more compact code.
1034      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1035      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1036        using_ers, using_gfo, using_mdt is now only defined within gencost)
1037    o pkg/ecco: extend generic cost capabilities
1038      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1039        capabilities via gencost_preproc (+ _c,_i,_r related params),
1040        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1041        gencost_outputlevel arguments to cost_generic
1042      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1043        and active_read, making room for gencost_preproc to take effect.
1044        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1045      - pkg/ecco/cost_generic.F :
1046        compute and store misfit maks*(model-data) in localdif that is
1047        then used in cost and for output, output misfit if outlev.GT.0
1048      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1049        rather gencost_barfile for deciding whether to write barfile
1050      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1051      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1052        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1053      - pkg/ecco/ecco_summary.F : report gencost variables
1054      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1055    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1056    o pkg/ecco: internal re-organization
1057      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1058        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1059        mv relevant variables definition from ecco_cost.h to ecco.h,
1060        make sure gencost routines only include ecco.h)
1061      - throughout : add missing CCP switches, rm unused variables,
1062        and rm un-necessary CPP switches
1063      - throughout gencost routines : replace modelstartdate with
1064        gencost_startdate when needed
1065      - cost_bp_read.F : use arguments, instead of common blocs
1066        so that it can be used also by (new) cost_gencost_bpv4.F
1067      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1068      - ecco_phys.F : compute etanFull
1069      - ecco_readparms.F : rename using_topex as using_tpj, add
1070        bpv4-grace to gencost list, initialize added parameters
1071      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1072    
1073    checkpoint65e (2014/09/28)
1074    o pkg/obcs:
1075      - replaced the just-added CPP options with run-time variables
1076        (see pkg/obcs/OBCS_PARAMS.h for details)
1077    o pkg/obcs:
1078      - add additional CPP options for sponge boundary layers
1079        (see pkg/obcs/OBCS_OPTIONS.h for details)
1080    o pkg/atm_phys:
1081      - implement simple (obliquity only, assuming circular planet orbit)
1082        seasonal cycle for incoming insolation ; used when run-time parameter
1083        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1084    o pkg/exf, pkg/ecco, pkg/ctrl:
1085      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1086      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1087      - implement gentim2d for xx_tauu, xx_tauv
1088    o pkg/ctrl, pkg/ecco :
1089      - fix and complement the generic controls implementation
1090    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1091        pkg/shelfice/shelfice_thermodynamics.F,
1092        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1093        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1094      - add weight in CTRL_GET_GEN calls
1095    o pkg/ctrl :
1096      - ctrl_get_gen.F : add weight as input parameter, and apply
1097        it directly rather than using smooth_correl2Dw (to be retired).
1098      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1099    o pkg/ctrl :
1100      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1101        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1102      - re-activate ctrl_summary (call in ctrl_init.F)
1103    o pkg/ctrl/ctrl_cost_gen.F :
1104      - fix CCP brackets, remove un-necessary myiter, mytime
1105    o pkg/ecco, pkg/ctrl :
1106      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1107      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1108      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1109      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1110    
1111    checkpoint65d (2014/09/15)
1112    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1113      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1114        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1115    o pkg/ctrl/ctrl_map_ini_genarr.F :
1116      - remove compilation failure
1117      - replace hard coded example
1118      - use ctrl_map_ini_gen2D, 3D
1119    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1120      - on/off switch based upon xx_genarr2d_weight,3d
1121    o src/packages_init_variables.F :
1122      - regroup pkg/estimation calls
1123      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1124        (moved to ctrl_init_variables)
1125    o cost/cost_init_varia.F :
1126      - remove ecco_cost_init_varia
1127        (moved to ecco_init_varia)
1128    o ctrl/ctrl_init_variables.F :
1129      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1130      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1131    o ctrl/ctrl_map_ini.F :
1132      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1133        (moved to ctrl_init_variables)
1134    o ctrl/ctrl_map_ini_ecco.F :
1135      - remove ECCO_PHYS (mv to ecco_init_varia)
1136      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1137    o ecco/ecco_ad_diff.list :
1138      - add ecco_init_varia.f
1139    o ecco/ecco_init_varia.F
1140      - new routine
1141    o pkg/streamice:
1142      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1143        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1144      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1145    o pkg/generic_advdiff:
1146      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1147    o pkg/exf:
1148      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1149         xxg_precip capability
1150      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1151    o pkg/ctrl:
1152      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1153    o model/src/load_fields_driver.F :
1154      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1155        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1156    o OpenAD verification experiments:
1157      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1158        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1159        for now, only in pkgs used in OpenAD verification experiments.
1160      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1161        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1162        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1163        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1164    o OpenAD verification tests:
1165      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1166      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1167        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1168      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1169        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1170    o model/src & generic_advdiff:
1171      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1172        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1173        dynamics requires valid tracer forcing only over tile interior but, for
1174        some diagnostics, may need to extend it over 1 point in tile halo region.
1175      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1176        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1177        setting in temp/salt/ptracer_integrate.F
1178    o pkg/dic:
1179      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1180        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1181        in gchem_forcing_sep.F
1182    o pkg/autodiff & obcs:
1183      - add storage of current OB values for U & V (was already done for T & S).
1184    
1185    checkpoint65c (2014/08/30)
1186    o pkg/dic:
1187      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1188        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1189        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1190    o verification:
1191      - new experiment testing OBCS and DIC pkgs, using params & output from
1192        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1193        passage: take OBCS from the last year of a 2 yrs simulation and initial
1194        conditions from t=1.yr while keeping the same forcing.
1195    o model/src:
1196      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1197        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1198    o pkg/diagnostics (Stats-Diags):
1199      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1200        a) refine region where stats are computed, excluding where arrhFac=0 ;
1201        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1202        c) extend regional stats over the region edges (for U or V pt location).
1203    o pkg/gchem:
1204      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1205        pkg/dic is currently changing/updating ptracers values beyond the OB).
1206    o verification (hs94):
1207      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1208        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1209        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1210        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1211    o pkg/ptracers:
1212      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1213        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1214      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1215        with AB-2 code (so that it get tested).
1216    o model/src:
1217      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1218        with AB-2 code (previously only available with AB-3 code).
1219        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1220        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1221        there, by calling CYCLE_AB_TRACER).
1222    o pkg/generic_advdiff:
1223      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1224        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1225        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1226        S/R temp/salt/ptracers_integrate.F
1227    o model/src & pkg/ptracers:
1228      - remove common block variables gT,gS (in DYNVARS.h), except when
1229         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1230      - remove common block variable gPtr.
1231    o model/src & pkgs:
1232      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1233         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1234         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1235         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1236      + change accordingly all calling S/R.
1237      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1238        in S/R temp/salt/ptracers_integrate.F
1239    o pkg/seaice:
1240      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1241        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1242      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1243        in seaice_lsr
1244      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1245        in s/r seaice_lsr_calc_coeffs
1246    o pkg/mdsio:
1247      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1248        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1249        too long (e.g., > MAX_LEN_FNAM/2 )
1250    
1251    checkpoint65b (2014/08/12)
1252    o pkg/matrix:
1253      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1254    o model/src:
1255      - fix initialisation of geothermalFile; compile geothermal-flux code in
1256        natl_box verification experiment.
1257    o model/src & pkg/down_slope:
1258      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1259      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1260        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1261        results at machine truncation level: update output of experiments
1262        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1263    o pkg/diagnostics (Stats-Diags):
1264      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1265        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1266        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1267        times (but Min,Max and StD are still wrong).
1268    o model/src:
1269      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1270        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1271    o model/src:
1272      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1273        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1274        arrays are already updated while adjustments (filters, conv.adjustment) are
1275        still applied later, in S/R TRACERS_CORRECTION_STEP.
1276    o model/src:
1277      - store in common bloc array "rhoInSitu" the virtual potential temperature
1278        anomaly that is used to compute geopotential: this make the atmos code
1279        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1280    o pkg/seaice/seaice_lsr.F
1281      - rename integer variable ilcall to ipass (that's what it is called
1282        in the residual diagnostics
1283      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1284        default) for improved non-linear convergence of the first few steps
1285      - adjust a few comments and add new ones to explain some of the store
1286        directives
1287    o pkg/generic_advdiff (& ptracers):
1288      - re-work the code to check for valid advection scheme and for minimum
1289        size of overlap (now stored in local common bloc in gad_advscheme.F)
1290    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1291      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1292      - add an auxilliary variable "bet" and fix store directives and keys in
1293        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1294        less exact gradients in my tests); but there are still
1295        recomputation warning (although gradients are sort of OK), when
1296        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1297        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1298      - update verification experiments lab_sea.
1299      - change some comments in S/R seaice_calc_viscosities
1300    o model/src:
1301      - if staggerTimeStep=T, always apply exchange to velocity field in
1302        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1303        (independent of using multi-dim advection or not); no effect on FWD run
1304        but affects AD results (at machine truncation level): update output of
1305        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1306        and isomip (oad: 12.d).
1307    o pkg/generic_advdiff:
1308      - stop if doAB_onGtGs is set to FALSE but ignored
1309      - refine warning related to stability of tracer time-stepping
1310        regarding internal wave dynamics.
1311      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1312        on staggerTimeStep & implicitIntGravWave (will now get a warning
1313        if potentially unstable).
1314    o pkg/kl10:
1315      - add new pkg "kl10" for mixing due to internal wave breaking, from
1316        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1317        (contribution from Jody Klymak), tested in verification experiment
1318        verification/internal_wave/input.kl10/
1319    o isomip experiment:
1320      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1321        (input.htd) and update the output.
1322    o cd_code experiments:
1323      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1324        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1325        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1326        update the corresponding output.
1327    o pkg/seaice:
1328      - reduce the number of include files and store directives in
1329        S/R seaice_lsr_tridiagu/v
1330      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1331        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1332        get rid off one store directive (a TAF bug?)
1333      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1334        S/R seaice_lsr_tridiagv to change the loop range for consistency
1335      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1336      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1337        S/R seaice_lsr_tridiagu/v (requires update of
1338        offline_exf_seaice/input.dyn_jfnk)
1339    
1340    checkpoint65a (2014/07/27)
1341    o model/src:
1342      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1343        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1344        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1345        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1346    o model/src:
1347      - collect momentum forcing tendency into local 2-D array (passed as argument
1348        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1349        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1350        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1351      - collect T & S forcing tendency into local 2-D array (passed as argument to
1352        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1353        affects results at machine truncation level (e.g., ocean: if using
1354        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1355        correction due to vertical advection).
1356      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1357        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1358        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1359        obcs_ctrl (ad & fwd grd @ 12 & 7).
1360    o pkg/ptracers & diagnostics:
1361      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1362        title (to avoid some unexpected truncation); sort out ptracers diags units.
1363      - collect ptracer forcing tendency into local 2-D array (passed as argument
1364        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1365    
1366    checkpoint65 (2014/07/18)
1367    o pkg/fizhi:
1368      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1369        affects results at machine truncation level. Update output of experiments
1370        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1371    o pkg/seaice: more clean up
1372      - rename TAF common block tapes to be more consistent and remove
1373        unnecessary duplicates
1374      - add store directives to remove more recomputations, but use smaller
1375        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1376        The idea behind this flag is to reduce the memory footprint when the
1377        adjoint of the LSR is not required. As of now, defining the flag
1378        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1379        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1380        For experiment offline_exf_seaice, this means on a linux box with gfortran
1381        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1382        this experiment):
1383        > size mitgcmuv_ad
1384        text    data        bss     dec        hex
1385        5100659 1216  220458952  225560827  d71c8fb
1386        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1387        but only a moderate increase of 36% for global_ocean.cs32x15:
1388        text    data        bss     dec        hex
1389        6695027 1648 1014578664 1021275339 3cdf6ccb
1390        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1391      - note: there are still recomputations in global_ocean.cs32x15 and
1392        offline_exf_seaice and the gradient agreement changes (gets a
1393        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1394      - in general, the AD gradients still are wrong
1395    o OpenAD
1396      - clean up code_oad/ directories somewhat by moving files
1397        dontCompile, dontTransform, keepOriginal to OAD_support/
1398    o model/src:
1399      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1400        (not currently tested): add dissipation terms before NLFS rescaling of
1401        tendencies (previously done after).
1402    o pkg/diagnostics:
1403      - write stats-diags in ascii file with more digits (same as in monitor).
1404    o pkg/down_slope:
1405      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1406        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1407    o model/src:
1408      - new file "apply_forcing.F" containing all the code previously in
1409        external_forcing.F, but with new argument list: pass, as new argument,
1410        the current level tendency array to update (instead of a direct update
1411        of the common bloc array). Change the corresponding calls.
1412      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1413        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1414    o pkg/seaice/seaice_lsr, a little bit of clean up
1415      - rearrange some code blocks, so that now all calculations for
1416        setting up the right-hand-sides done within one single block
1417        (I find that easier to read and understand)
1418      - rearrange freedrift-code to reduce the number of ifdefs
1419      - adjust some indentations and comments
1420    
1421    checkpoint64z (2014/07/10)
1422    o model/src and several pkgs:
1423      - change argument list of all S/R called from external_forcing.F and
1424        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1425        to pass, as argument, the current level tendency array to update
1426        (instead of a direct update of the common bloc array).
1427      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1428      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1429    o pkg/seaice/seaice_lsr.F
1430      - always initialize local arrays in seaice_lsr_tridiagu/v
1431      - add more local tapes to seaice_lsr_tridiagu/v
1432      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1433        keep it in bi/bj loop; this seems to be essential
1434      - gradients are still wrong but only by 4-7 orders of magnitude
1435        instead of 15 orders of magnitude, lab_sea improves a little
1436    o pkg/seaice
1437      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1438        generates unnecessary code in seaice_lsr_ad
1439      - add more store directives in seaice_lsr to avoid unnecessary code
1440        in seaice_lsr_ad
1441      - exclude some residual computations in seaice_lsr when
1442        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1443        in seaice_lsr_ad
1444      - add more storing, a new tape (model/src/the_main_loop.F) and
1445        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1446        and klockey should be checked by a specialist)
1447      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1448        and update lab_sea after previous changes in pkg/seaice below
1449    o pkg/autodiff:
1450      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1451        viscFacInAd : run time parameters allowing for adjoint switches
1452        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1453    o pkg/ecco:
1454      - introduce cost_gencost_boxmean.F that computes a box mean
1455        temperature (for use in adjoint sensitivity studies).
1456    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1457    o pkg/mom_common/mom_calc_visc.F:
1458      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1459    o pkg/seaice/seaice_summary.F:
1460      - statement for SEAICEadjMODE now in autodiff_readparms.F
1461    o pkg/seaice:
1462      - remove some store directives and add new ones in an effort to get
1463        finally rid off the recomputation warnings. This is successful
1464        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1465        defined (i.e. no extensive recomputation warnings left), but there
1466        are still too many recomputations on the solver iteration level
1467      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1468      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1469        SEAICE_SIZE.h
1470      - add a store directive in S/R seaice_calc_viscosities
1471    o pkg/seaice (ITD code):
1472      - fix definition of Hlimit for multi-threaded case
1473      - use double precision arithmetic to compute Hlimit: this affects results;
1474        update output of experiment seaice_itd.
1475    o replace content of verification/seaice_itd
1476      - instead of a 1D column use the configuration of offline_exf_seaice
1477        to test the ice thickness distribution code with ridging
1478      - this is a first shot at this experiment
1479      - change of some defaults of ridging parameters SEAICEhStar (from
1480        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1481        and lot of new comments.
1482    
1483    checkpoint64y (2014/06/20)
1484    o pkg/seaice/seaice_reg_ridge.F:
1485      - modify the regularization of very small volumes of ice; only check
1486        total volume HEFF, and do not apply correction to individual ice
1487        classes because that leads to funny patterns in the heat and fw-fluxes
1488        into the ocean. Adjust seaice_itd/results/output.txt
1489      - replace nITD by SEAICE_multDim in loop-ranges
1490    o pkg/exf:
1491      - add code to process the case field period = -12. with UV interpolation.
1492      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1493        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1494    o verification/global_with_exf:
1495      - switch all fields period to -12. (was previously untested) in input/data.exf
1496        (but keep secondary test ".yearly" unchanged); update the reference output.
1497    o pkg/cal:
1498      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1499    o pkg/exf:
1500      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1501        to replace logical switch "exf_verbose"
1502      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1503    o pkg/sbo:
1504      - update from Katherine Quinn: evaluate mass directly from density and SSH
1505        (budget using Finite Volume method) instead of from bottom pressure.
1506      - allow testreport to collect few selected SBO output ; tested in exp.
1507        global_ocean.90x40x15 (after updating the results, to include SBO output).
1508      - fix some multi-threading issues (in output part).
1509    o model/src & most packages:
1510      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1511      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1512        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1513        "data.{pkg}" exist ; and leave the S/R (return) just after.
1514      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1515        + call LAND_READPARMS from packages_readparms.F
1516    o pkg/seaice:
1517      - remove code that resets useThSice in S/R seaice_readparms and
1518        replace it by a warning in S/R seaice_check
1519      - remove parameter MULTDIM, replace with nITD and runtime
1520        parameter SEAICE_multDim (still hard-wired to nITD if
1521        SEAICE_ITD is defined)
1522    
1523    checkpoint64x (2014/05/24)
1524    o verification/lab_sea:
1525      - update adjoint and TLM output following changes to pkg/salt_plume
1526      - un-do the update after putting back local recip_Cp in few places.
1527    o pkg/salt_plume: modifications by An Nguyen:
1528      - add capability to do brine rejection (salt-plume) as function of
1529        volume+tracers (instead of only salinity tracer).
1530      - conserve volume by exchanging volume from each kLev to above to
1531        accommodate in-coming brine volume
1532      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1533      - switch KPP surf buoyancy due to brine forcing to 3-d
1534        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1535      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1536      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1537        in East/West Arctic.
1538    o pkg/sbo:
1539      - incorporate modifications from Katherine Quinn to enable the use of sbo
1540        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1541        output for future testreport verification (unfinished).
1542    o pkg/atm_phys:
1543      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1544        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1545        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1546    o pkg/seaice
1547      seaice_calc_ice_strength.F: modify expression to avoid divisions
1548        (affects truncation)
1549      seaice_do_ridging.F: clean up the insectarium
1550      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1551      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1552      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1553      - add some debugging information and error messages (warnings)
1554    o model/src: modifications relatd to atmosphere p*:
1555      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1556      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1557        of vertical profile tRef in geopotential background and anomaly.
1558      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1559        and pkg/atm_phys.
1560      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1561        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1562    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1563    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1564        not used right now, but can be used in BGC packages to fix conservation.
1565    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1566        other packages too.
1567    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1568        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1569    o model/src:
1570      - since we have several heat capacity (even in model/src), define "recip_Cp"
1571        as local variable (no longer in common block) to avoid any confusion.
1572      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1573    o pkg/exf:
1574      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1575        air density as function of air Temp, Humidity and atm pressure.
1576    
1577    checkpoint64w (2014/05/02)
1578    o verification:
1579      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1580        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1581        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1582        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1583        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1584    o model/src: for atmosphere in p* coords:
1585      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1586      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1587        but not yet activated.
1588    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1589      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1590      - this changes the results (but not for any verification experiment, because
1591        none tests this), but avoids having an extra field in the restart files
1592    o pkg/seaice: remove global variable TICE (not needed)
1593      - replace by TICES or local variable where necessary (cost_seaice_test,
1594        seaice_diagnostics_state)
1595      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1596      - use specific read/write routines for reading and writing individual leves
1597        of a multilevel field
1598    o pkg/ctrl & model/inc:
1599      - move additional anomaly fields of control vars (related to options:
1600         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1601        from DYNVARS.h into new header file: CTRL_FIELDS.h
1602    o pkg/seaice: some small modifications to the ridging code
1603      - make fw2ObyRidge a global variable and add the freshwater flux to
1604        seaice_growth
1605      - pass actual thickness from seaice_prepare_ridging, so that it is
1606        computed only in one place and compute it in the same way as in
1607        seaice_growth
1608      - initialise more fields in seaice_do_ridging that where cause floating
1609        point exceptions over land
1610  o pkg/seaice: preparations for ridging code and first real ridging code  o pkg/seaice: preparations for ridging code and first real ridging code
1611    - move most of "PART 1" of S/R seaice_growth into a new and separate    - move most of "PART 1" of S/R seaice_growth into a new and separate
1612      S/R seaice_reg_ridge that will both regularize the state variable after      S/R seaice_reg_ridge that will both regularize the state variable after
1613      advection call the actual ridging routine;      advection call the actual ridging routine;
1614    - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,    - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1615      d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;      d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1616    - remove ridging code from seaice_advdiff    - remove ridging code from seaice_advdiff
1617    - clean up remaining part 1 of seaice_growth in an attempt to make it    - clean up remaining part 1 of seaice_growth in an attempt to make it
1618      more readable (this is probably subjective)      more readable (this is probably subjective)
1619    - call seaice_itd_redist once in the initialisation phase to have the initial    - call seaice_itd_redist once in the initialisation phase to have the initial
1620      conditions in the correct category      conditions in the correct category

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