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revision 1.1889 by dimitri, Mon Jul 1 16:55:57 2013 UTC revision 1.2257 by jmc, Tue Jun 14 20:51:15 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/dic & seaice:
8      - fix compilation of ocean component for coupled atm+ocn model with
9        seaice dynamics & dic.
10    
11    checkpoint65x (2016/06/11)
12    o add a license text file in main MITgcm tree.
13    o added pkg/bling:
14      - intermediate complexity biogeochemical model
15      - see bling_description.txt for details
16      - verification experiment is global_oce_biogeo_bling (for now, in
17        Contrib/verification_other/); tested daily on baudelaire with gfortran.
18      - add entry point in pkg/gchem for new pkg "bling".
19    o pkg/seaice: fix tensile stength computation
20      - replace global field tensileStrength by tensileStrFac
21      - tensileStrFac can be computed once in S/R seaice_init_varia
22      - fortunately that does not affect any verification results
23    
24    checkpoint65w (2016/05/12)
25    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
26         with ECCO_CTRL_DEPRECATED defined
27    o verification/global_ocean.cs32x15:
28      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
29        with "selectNHfreeSurf=1".
30    o model/src (non-hydrostatic free-surface):
31      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
32        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
33      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
34        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
35        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
36        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
37      - Update output (changes at machine truncation level) of verification exp:
38        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
39        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
40    o pkg/seaice: ITD code
41      - fix picking up from a single category model by initialising
42        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
43      - split a long warning message in seaice_check_pickup.F into two lines,
44        because NEC SX-ACE cannot deal with the long line.
45    o model/src:
46      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
47    o pkg/seaice:
48      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
49    o pkg/seaice:
50      - add basal stress as parameterisation for grounding ice
51        following Lemieux et al. (2015)
52      - turn on by setting new parameter SEAICEbasalDragK2 to a value
53        larger than 0. Lemieux et al. (2015) recommend 15.
54      - The adjoint complains with extra recomputations so there is also a
55        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
56        order to postpone the problem
57      - compile the new code in lab_sea
58    o verification/halfpipe_streamice:
59      - update both TAF and OpenAD adm output (machine truncation differences)
60    
61    checkpoint65v (2016/04/08)
62    o verification/advect_xz:
63      - increase overlap size from 3 to 4 and add new secondary test for PQM
64        advection scheme (with mono & wino limiter).
65      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
66    o model/src:
67      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
68        added phi0Ref) to set vertical axis origin and phiRef origin;
69        keep Ro_SeaLevel for backward compatibility (with a warning).
70       According to coordinate and fluid type:
71        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
72        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
73        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
74        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
75      - remove Ro_SeaLevel from ATM experiment parameter files;
76      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
77        complement; update output.txt (changes at machine truncation level).
78    o pkg/seaice/seaice_evp.F
79      - simplify computation of deltaZ and zetaZ to simple averaging following
80        Bouillon et al. (2013). This removes a lot of code, but also changes
81        verification experiment lab_sea.hb87 -> updated
82    
83    checkpoint65u (2016/03/14)
84    o pkg/generic_advdiff:
85      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
86        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
87        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
88        testing and not for actual use.
89    o model/src:
90      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
91        origin r = rF(1);
92      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
93        in EOS for height coordinate: enable to include NH Pressure or to use
94        more accurate pressure vertical profile; options not linked to EOS type
95        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
96      - start to implement variable gravity (along vertical): for now, only with
97        z-coords (not even z*).
98      - add Ideal Gas equation of state for height coordinate.
99      - update OpenAD output (affected at machine truncation level) of exp:
100        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
101    o pkg/exf:
102      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
103        of exf interpolation (before any rescaling, rotation or interpolation
104        to velocity point) for each field that gets loaded from file. This option
105        identically mimics the input file organization (e.g. record numbers in year
106        by year input files) besides the change in horizontal grid.
107      - add rotateStressOnAgrid run-time switch so that wind stress fields
108        can be provided on the A-grid in zonal/meridional direction and
109        rotated on the fly. This only applies to the case when the exf
110        interpolation is off and rotateStressOnAgrid is false by default.
111    o model/src:
112      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
113        it's also used with pkg/atm_phys) and add few more parameters (but still
114        inactive, src code yet to come)
115    
116    checkpoint65t (2016/02/10)
117    o pkg/atm_phys:
118      - from Ruth Geen: add optical depth dependence on CO2 concentration.
119    o model/src:
120      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
121        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
122        Update output of exp. deep_anelastic (changes at truncation level).
123    o tools:
124      - add a hack in "remove_comments_sed" (used only with TAF) for recent
125        version of OpenMPI (shipped with FC.23): comment out the new header
126        file "mpif-sizeof.h" which causes problems to TAF.
127    o pkg/seaice:
128      - change the termination criterion so that maxits (SEAICElinearIterMax)
129        has an effect
130      - unify iteration parameters for implicit solvers (JFNK and Picard)
131        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
132        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
133        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
134        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
135        SEAICEnonLinTol     replaces JFNKgamma_nonlin
136      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
137      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
138        use with SEAICEuseKrylov
139    o pkg/seaice/seaice_lsr.F
140        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
141        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
142        an effect.
143    o pkg/seaice: add two new parameters
144      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
145        parameter is not in any namelist)
146      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
147        a preconditioner for the non-linear Newton iteration of the JFNK
148        solver
149    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
150      affects some experiments at truncation level:
151      - global_ocean.cs32x15.icedyn (11 digits),
152      - global_ocean.cs32x15.seaice (11 digits),
153      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
154      - also update global_ocean.cs32x15 adjoint and tangent-linear results
155    o pkg/salt_plume & pkg/thsice:
156      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
157        connect salt_plume flux to ATM-OCN coupling pkgs interface:
158       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
159         export to coupler interface) even without compiling pkg/salt_plume ;
160       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
161         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
162    o pkg/dic:
163      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
164        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
165        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
166      - move also update with values from ATM-OCN Coupler in the same new S/R
167        (previously done in ocn_apply_import.F).
168    o tools/adjoint_options:
169      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
170        has been changed on Jan 14, 2016.
171    o pkg/ggl90:
172      - add alternative discretisation of vertical shear (off by default), to
173        compute the mean (@ grid-cell center) of vertical shear compon instead of
174        vertical shear of mean flow (@ grid-cell center).
175      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
176        results on adjacent faces of cubed-sphere grids; this fix the restart.
177    o pkg/atm_compon_interf:
178      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
179        pass last value, stored directly before export to CPL ;
180        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
181      - remove atmSLPr from pickup files (no longer needed for restart)
182    
183    checkpoint65s (2016/01/13)
184    o eesupp & genmake2:
185       - first check for Function ETIME and, if it fails, then check for subroutine
186         ETIME and consistent output; use the appropriate version in timers.F
187    o model/src:
188      - to check restart test, add option to apply EXCH to U,V earlier, just before
189        integr_continuity; turned off by default.
190    o pkg/dic:
191      - remove CPP option USE_ATMOSCO2 (not needed)
192    o tools/tst_2+2:
193      - try to ignore difference between +0 and -0 in binary file, causing test
194        to fail for no good reason.
195    o eesupp & genmake2:
196      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
197        but also check (in genmake2) that test runs and returns meaningful results.
198    o coupler pkgs:
199      Finish implementation of optionally-exchanged variable switches (started on
200       Nov 12) with addition of few more exchanged fields, including 2-way exchange
201       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
202       advection in OCN component; this requires sequential coupling.
203      coupler (pkg/atm_ocn_coupler):
204      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
205        routines (useful for debug).
206      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
207         flux, DIC fields) if corresponding switch is ON.
208      - add option to export RunOff to OCN (to use for DIC river input)
209      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
210      components (pkg/atm_ & ocn_compon_interf):
211      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
212        optionally exchanged fields; add a check & stop in cpl_readparms.F.
213        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
214        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
215      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
216        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
217      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
218      - hold in common block coupler optionally-exchanged variable switch
219        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
220      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
221        this is intended to replace the OCN cplFldtave.* output files (not updated
222        to contain new additional exchanged fields).
223    o pkg/dic:
224      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
225    o pkg/thsice:
226      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
227        and writing of thsice pickup files.
228    o pkg/atm_compon_interf:
229      - move all field individual export-call out of cpl_export_import_data.F
230        into new S/R ATM_EXPORT_FIELDS
231    o pkg/atm_compon_interf:
232      - store state variables (for now, only thSIce fields) just before beeing
233        exported (in cpl_export_import_data.F, like on ocean side) instead of from
234        atm_store_my_data.F like all exported fluxes.
235      - new version of pickup_cpl: write field names into meta file and read meta
236        file to find field postion in pickup. Also only write/read fields meeded for
237        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
238    o pkg/dic:
239      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
240    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
241        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
242        value can be from domain [0,1] to average between the two methods
243    o pkg/atm_phys:
244      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
245        hold fixed in time).
246    
247    checkpoint65r (2015/12/21)
248    o pkg/seaice:
249        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
250        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
251    o pkg/seaice:
252      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
253        when SEAICEscaleSurfStress=.TRUE.,
254      - apply areaW and areaS in S/R seaice_calc_lhs
255    o pkg/atm_phys:
256      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
257        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
258        for individual contribution (convection, LSC cond, radiation)
259      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
260        information); activated with: solar_exponent=0. and wv_exponent=-1.
261    o pkg/ggl90:
262      - within IDEMIX add upper limit for horizontal group velocity to
263        avoid instability problems in the explicit horizontal diffusion term for
264        long time steps or high resolution
265    o pkg/diagnostics:
266      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
267        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
268    o testreport:
269      - remove "-v" (verbose option) in default mpirun command.
270    o pkg/seaice/seaice_growth:
271      - catch potential division by zero in ITD code, does not change
272        verification results
273    o pkg/ecco:
274      - retire old codes to the Attic. The calls to retired functions are
275        left in a commented form in case they ever need to be re-activated.
276      - ecco_check.F: issue warning if any old CPP option is
277        defined that corresponds to retired codes -- then stop.
278    o pkg/atm_compon_interf:
279      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
280        coupler: use last time-step value instead of average over cplSendFrq_iter
281        time-step, similar to what is done for seaIceMass.
282        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
283    o eesupp & genmake2:
284      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
285        <= remove until a fix is found for some ifort version on ia32 machine.
286    o pkg/seaice/seaice_evp:
287      - refine residual computation
288    
289    checkpoint65q (2015/11/18)
290    o pkg/seaice/seaice_evp:
291      - fix residual computations so that they no longer affect the actual
292        simulation code
293      - fix seaice_readparams to be able to actually set new parameters
294        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
295    o model/src:
296      - fix wrong truncation (single prec) from "FLOAT" function in expressions
297        like: deltaT*FLOAT(myIter) when myIter is large:
298         a) replaced by DFLOAT (if not seen by TAF);
299         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
300    o pkg/aim_v23:
301      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
302        when pickupSuff is set ; do write rolling pickups + at the end of the run.
303    o pkg/atm_ocn_coupler + ocn_compon_interf:
304      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
305        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
306        add corresponding call in DO_OCEANIC_PHYS.
307    o coupler pkgs:
308      Start a new way to set-up optionally-exchanged variables (previously, only
309       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
310       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
311       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
312       compononent param default can be set accordingly).
313      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
314       but rather applies to a group a fields (going both ways like for DIC)
315       and corresponds to an option of coupling config.
316      coupler (pkg/atm_ocn_coupler):
317      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
318        and read namelist directly (without eessup S/R calls) instead of
319        in the very un-flexible old way, 1 param per line, in fixed order;
320      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
321        cleanly in CPL_CHECK_CPLCONFIG
322      - add new coupling-exchange selectors (some not yet active) including
323        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
324                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
325      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
326        component ; called directly from coupler.F, after comp. registrations;
327      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
328         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
329          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
330      components (pkg/atm_ & ocn_compon_interf):
331      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
332        CPP header file in all pkg source files.
333      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
334        ATM/OCN_CHECK_CPLCONFIG;
335      - add error-counter to track errors (e.g., in "data.cpl") and to stop
336        cleanly in ATM/OCN_CHECK_CPLCONFIG;
337      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
338        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
339        before PACKAGES_READPARMS;
340      verification/cpl_aim+ocn/:
341      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
342        "data.cpl" for coupler (in input_cpl).
343    o eesupp/inc:
344      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
345        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
346        to always cumulate tile local-sum in the same order (still uses
347        MPI_Allreduce like standard code).
348      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
349        that are now identical to standard version (in eesupp/inc).
350    o pkg/shelfice:
351      - add SHELFICETransCoeffTFile for initializing spatially varying
352        heat and salt transfer coefficients
353    o pkg/atm_compon_interf & ocn_compon_interf:
354      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
355        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
356      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
357    o pkg/atm_ocn_coupler:
358      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
359    o pkg/rbcs:
360      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
361        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
362      - add a short report (to STDOUT) about RBCS-mask settings.
363    
364    checkpoint65p (2015/10/23)
365    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
366        there is no adjoint test for EVP, we don't know what it does to the adjoint
367        solution, but at least there are no more recomputation warnings left
368    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
369        a chance of giving the same results as a fully converged VP (JFNK) solver
370    o tools/adjoint_options/adjoint_diva:
371      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
372    o pkg/streamice:
373      - spotted bug in streamice_driving_stress using dyG where should have been dxG
374    o pkg/exf:
375      - remove STOP statement that prevented to use wind or (wind-)stress
376        interpolation for constant-in-time forcing fields (wind/stress period = 0).
377    o pkg/seaice:
378      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
379        5 additionals 2D fields and 6 new store directives
380      - change logic in seaice_readparms.F: EVP code can now be turned on in
381        various ways, setting SEAICE_deltaTev is no longer required,
382        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
383        or SEAICEaEVPcoeff
384    o pkg/shelfice/shelfice_thermodynamics.F
385      - redefining uLoc/vLoc to u/v, instead of 2u/v
386    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
387      - this is an intermediate state of a truely converging EVP that has
388        the potential of outperforming implicit VP methods, I do not recommend
389        using it yet.
390      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
391        and all parameters are hardwired
392      - for convergence it still requires very smooth regularisations, that means,
393        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
394        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
395        specific averaging appears to be required, still subject to tuning
396      - still needs cleaning and I need to turn parameter into runtime parameters
397      - add code to compute and print residuals of iteration, compile with
398        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
399    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
400      that entered with r1.54 on Sep04, 2015, -> update results
401    
402    checkpoint65o (2015/09/14)
403    o pkg/mom_vecinv & mom_common:
404      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
405        called from there.
406      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
407        allows to use Vector-Invariant form in deep atmos and anelastic formulation
408    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
409      and Koenig-Beatty+Holland (2012)
410      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
411      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
412      - requires an extra input argument for S/R seaice_calc_viscosities
413      - tensileStrength's depth dependence is different from Itkin et al. (2015)
414        (to be changed and played with, for now exponential)
415    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
416      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
417        by AREA according to Connelly et al. (2004), JPO.
418      - For EVP and the LSR solver, the implicit part of the drag term is
419        the only non-zero term in the denominator when there is no ice (which
420        prevented running the model with zero ice-ocean drag). If
421        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
422        (or zero main diagonals BU/BV) which need to be caught. A practical
423        consequence is that for open water, the momentum equation reduce
424        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
425        they happen to be zero, often leading to a non-zero solution over
426        open water.
427    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
428        efficient EVP method.
429      - introduce area-weighted averages for e12 (analogously to
430        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
431        remain, but also changing the order of terms in the previous average
432        changed the results as much) -> update experiment
433      - add SEAICE_DELTA_SMOOTHREG code
434      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
435        TEM-code
436      - adjust loop bounds so that only required fields are computed
437      - add new averaging code for zetaZ/deltaZ (again similar to
438        seaice_calc_viscosities.F), inactive by default for now (will change
439        results again), but will replace old code eventually
440    o eesupp/src:
441      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
442        to always cumulate tile local-sum in the same order
443        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
444        Still uses MPI_Allreduce (like standard code) but on array of tiles
445        and should be faster than GLOBAL_SUM_SEND_RECV code.
446      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
447        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
448      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
449         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
450         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
451         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
452         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
453    
454    checkpoint65n (2015/07/29)
455    o pkg/thsice:
456      - add a warning when used with pkg/aim but without updating SST
457        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
458    o pkg/offline:
459      - change where Offline-Fields are loaded, from load_fields_driver.F to
460        directly within FORWARD_STEP, just after updating iter number and time;
461      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
462        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
463       These changes allow:
464        a) to recover exactly on-line results using deltaToffline=deltaTClock,
465        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
466        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
467        time-step, both with GM & KPP files and with recomputing these fields;
468        b) no needs to switch on staggerTimeStep anymore;
469        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
470      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
471    o pkg/offline:
472      - change (rarely used) offset-iteration parameter to an offset time (in s):
473        can easily recover previous offset-iter effect by setting offset-time
474        (offlineTimeOffset) to offset-iter x deltaToffline;
475      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
476        in KPP as part of surface buoyancy forcing) in offline run.
477      - fix ptracers KPP non-local term in the case where KPP is re-computed.
478    o OpenAD
479      - Adding preliminary ggl90 test to OpenAD verification.
480        Config. with ggl90 currently diverges after 64 time steps
481        so will need more work to become more stable
482      - Adding preliminary kpp test to OpenAD verification.
483        required small tweakes in kpp_routines.F
484      - Merge and update from Krishna Narayanan's contrib area:
485        * Add one variable for preliminary OpenAD DIVA
486        * Add replacement time-stepping for OpenAD DIVA
487        * genmake2 flag -diva (but only for OpenAD; preliminary)
488        * required modifs for OAD_support
489        successful preliminary test for tutorial_global_oce_biogeo/
490    o pkg/seaice:
491      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
492      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
493        delta with a smooth function in s/r seaice_calc_viscosity
494        (no effect on EVP)
495      - rename local suffix "sqr" into "sq" for more consistent variable names
496    o pkg/seaice:
497        add new parameter SEAICE_deltaMin that is used ***only***
498        for regularizing Delta (and nothing else, like the parameter
499        which is also used for all sorts of things SEAICE_EPS).
500        Defaults to SEAICE_EPS for backward compatibility only.
501    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
502        the wrong key by inialising it before use -> fixes a recomputation
503        problem but does not fix the gradient
504    o pkg/layers:
505      - move resetting of flux arrays to outside the iLa loop
506        (this caused layers_diapycnal to not work with more than one layer coord.)
507      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
508    o pkg/layers:
509      - remove from common block 3D layers fields (used to diagnose transport
510        in tracer coords) and declare them as local arrays in layers_calc.F
511    o pkg/seaice:
512      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
513        in lab_sea forward experiment (changes results -> updated)
514      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
515    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
516       computations; for SEAICE_VECTORIZE_LSR
517      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
518        sweep to the outside,
519      - remove store directives and add "CADJ loop sequential" directives
520        in analogy to model/src/solve_tridiagonal.F
521      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
522        boundaries to yield more readable code. This has also the charming side
523        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
524        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
525        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
526        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
527        an additional option)
528       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
529       but the adjoint gradients (which are affected by this change) still explode.
530    o coupler (atm & ocn _compon_interf):
531      - avoid using Exch2 IO mapping if not suitable.
532    
533    checkpoint65m (2015/06/15)
534    o pkg/layers:
535      - clean-up old parameters setting (from Sep 2012):
536        + remove old parameters setting from common block (declared locally);
537        + stop if any old parameter is mixed with new parameters;
538        + check for valid or consistent parameter setting (e.g., layers_name)
539      - check that layers_bounds for Pot.Density are in the right range;
540        this is supposed to catch un-updated setting after recently shifting
541        potential density field "prho" by -1000 (now in "sigma" scale).
542    o pkg/layers:
543      - Added missing call to layers_fill for keeping track of tottend in
544        pkg/diagnostics/diagnostics_fill_state.F
545    o pkg/layers:
546      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
547        of diapycnal fluxes
548    o pkg/layers:
549      - reverted changes to interpolation to previous treatment; there
550        was never actually a problem
551    o pkg/layers:
552      - fix interpolation of layers tracers in the presence of partial cells
553      - add lots of new functionality to compute water mass transformation
554        (enabled by CPP flag LAYERS_THERMODYNAMICS)
555      - add new calls from main code (diags_oceanic_surf_flux.F,
556        thermodynamics.F, impldiff.F) and gad to save the necessary fields
557        for layers_thermodynamics calculations
558    o pkg/ptracers:
559      - add capability of stepping a passive tracer forward without advection
560        by setting PTRACERS_advScheme to 0.
561    o pkg/diagnostics:
562      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
563    o pkg/layers:
564      - shift potential density field "prho" by -1000 for density layer averaging so
565        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
566        Note that density bin boundaries (layers_bounds in data.layers) have
567        to be set accordingly (i.e., shifted, in sigma scale).
568    o pkg/layers:
569      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
570      - fix calculation of layer non-weighted velocity and layer probability
571      - add diagnostics for pot.density used for layer averaging
572    o pkg/seaice:
573      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
574        positiveness, modify a few comments and improve variable names,
575      - the changed computation of deltaC affects most seaice-related
576        experiments at the truncation level.
577        seaice_itd.thermo is affected by far the most, with
578        only 7 digits of agreement remaining; update experiments.
579    
580    checkpoint65l (2015/05/04)
581    o pkg/shelfice:
582      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
583        factor drKp1 to zero where it is negative (ie. do not use
584        SHELFICEBoundaryLayer if hFacC>1)
585      - the same for factor drLoc in shelfice_forcing.F
586    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
587        with modules in ptracers, when using testreport option "-small_f"
588    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
589      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
590    o verification/testreport
591      - add new option -small_f
592        with this option testreport first makes the target small_f (*.f files)
593        before running make (all). This is useful for explicit inlining when
594        all sources need to be full available.
595    o pkg/exf/exf_interp.F:
596        remove previous changes related to reverse (decreasing) input grids latitude
597    
598    checkpoint65k (2015/04/01)
599    o pkg/ecco:
600        fix missing cosphi initialization; use eccoiter in place of optimcycle;
601        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
602        instead of active read/write
603    o pkg/ctrl:
604        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
605        instead of active read/write.
606    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
607        return if .NOT.useAUTODIFF
608    o pkg/seaice: add CPP brackets (cost function related).
609    o model/src:
610        add useAUTODIFF run time switch.
611    o pkg/exf/exf_interp.F:
612        add code to allow input grids with latitude starting in the north (i.e. when
613        j=1 corresponds to northern edge of field); modify global_with_exf to test
614        this feature.
615    o verification/testreport:
616      - replace "grep -A3" with POSIX conformal sed command, because there are
617        implementations of grep that cannot do contextual searches
618      - replace "cat -n" by "nl" (two occurrences), because not all implementations
619        of "cat" have the option "-n"
620    o model/src:
621        add new file gsw_teos10.F that contains 3 functions, more or less a copy
622        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
623        convert from conservative to potential temperature. For now they are not
624        called anywhere.
625    o pkg/ggl90: make "useIDEMIX" useful
626      - re-organize code in s/r ggl90_calc a little to move computations that
627        are different for idemix into separate loops (changes verification
628        experiment idemix at truncation level, 12 digits remain -> updated)
629      - requires 2 new 2D fields KappaM, verticalShear
630      - make hFacI and recip_hFacI local 3D variables that are passed to
631        s/r ggl90_idemix
632      - fix and improve some comments
633    
634    checkpoint65j (2015/02/25)
635    o pkg/openad
636      - synchronize seawater.F with version in model/src: replace routine
637        body of sw_temp by calling sw_ptmp and fix/add a few comments.
638    o pkg/mnc:
639      - change default value of pickup_read/write_mnc params to FALSE
640        (since few features are missing in reading MNC pickup files).
641    o model/src:
642      - change default (background) vertical diffusivity for salt to be the
643        temperature (background) vertical diffusivity.
644      - change background vertical diffusivity in vertical mixing pkgs ggl90,
645        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
646        This makes ptracers default diffusivity (that uses salt diffKr) more
647        consistent with vertical mixing schemes.
648    o verification/testreport:
649      - fix typo in "-pcls" option ;
650      - put temp files in /tmp (instead of in local dir)
651      - add option "-ncad" to use genmake2 new option "-nocat4ad"
652      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
653    o pkg/ggl90 (idemix code):
654      - apply few fixes ; add some missing "_d 0" ; update output of exp.
655        global_ocean.90x40x15.idemix
656    o OpenAD
657      - enable active file I/O and begin removal of work-around code
658        for OpenAD for handling control variables (memory vs. active files)
659      - new CPP options file OPENAD_OPTIONS.h
660      - revert to genarr2d gradient check for hs94.1x64x5
661      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
662      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
663    o tools/genmake2:
664      - add option for an alternative Makefile (from Martin) where multiple
665        source files are sent to TAF (instead of all in one file).
666    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
667      - code provided by Carsten Eden as an extension of ggl90
668      - so far the code is turned on within ggl90 by setting a CPP-flag at
669        compile time; a runtime flag implementation is not yet complete
670      - tested in new verification experiment global_ocean.90x40x15.idemix
671    o verification:
672      - reduce length of the AD test run by half for experiments
673        global_ocean.cs32x15 (std + thsice) and isomip
674      - enable active file I/O for OpenAD, adjust verifications accordingly
675      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
676    o verification/testreport:
677      - fix two non-POSIX sed statements so that there are no error messages
678        on Mac OS X
679      - replace hostname -s with hostname | sed 's/\..*$//'
680    o model/src/seawater.F:
681      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
682        (following the matlab code), which would have avoided the bug caught
683        by Matt (see below) in the first place
684    o pkg/shelfice:
685      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
686        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
687      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
688        ice-shelf case (i.e., within surface level).
689      - add config summary in shelfice_check.F
690      - remove global variable recip_SHELFICElatentHeat and replace by a local
691        variable recip_latentHeat
692      - introduce diagnostics for friction velocity uStar (in case of
693        SHELFICEuseGammaFrict)
694      - change verification experiment isomip.htd:
695        + start from pickup (as input_ad at nIter0=8640)
696        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
697        + test SHELFICEuseGammaFrict = .TRUE.
698        + test SHELFICEadvDiffHeatFlux = .TRUE.
699    o model/src:
700      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
701        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
702        update output of experiments global_with_exf.yearly and isomip (all 6).
703    o pkg/shelfice:
704      - change setting of kTopC to also be zero where there is no ice-shelf.
705      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
706        ice-shelf is.
707      - first attempt to get RealFreshWaterFlux effects: for now, only without
708        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
709    o pkg/seaice: add the option to prescribe a fixed thickness PDF
710      for thermodynamic calculations
711      - because of divisions of the type 7/7 not exactly equal to 1, this change
712        affects results of some verification experiments by up to 4 digits:
713        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
714        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
715        adjoint: lab_sea, lab_sea.noseaicedyn
716        -> updated
717    
718    checkpoint65i (2015/01/23)
719    o model/src:
720      - change units of frictionHeating field from W to W/m^2
721      - fix bug in frictional heating from stratospheric drag in
722        S/R ATM_PHYS_TENDENCY_APPLY_V
723      - with synchronous time-stepping: move resetting to zero of frictionHeating
724        field from load_fields_driver.F to thermodynamics.F ;
725      - add diagnostics for frictional heating.
726    o model/src & gmredi K3D:
727      - add frictionHeating field to pickup-files (for synchronous time-stepping)
728      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
729      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
730        and name in pickup file).
731      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
732    o model/src:
733      - move (from ini_forcing.F) initialisation of all arrays in header file
734        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
735        (since Nov 2012) with option selectAddFluid=1.
736    o pkg/shelfice:
737      - change units (+ document) of newly added field "shelfIceMassDynTendency"
738      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
739    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
740    o pkg/seaice: two new runtime parameters:
741      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
742        long overdue
743      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
744        parameterization of tensil stress for fast ice (does not do anything yet)
745    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
746        for LSR: move checking overlaps out of JFNK-if-block
747    o pkg/atm_phys:
748      - move copy of grid and dynamical fields out of atm_phys_driver.F into
749        new S/R ATM_PHYS_DYN2PHYS.
750      - fix level height for Linear Free-Surf case (to be consistent with
751        fixed-in-time pressure levels).
752    o pkg/mom_common (bottomdrag):
753      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
754        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
755        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
756    o pkg/shelfice (u/v_drag):
757      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
758      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
759        (now similar to shelfice_u_drag.F)
760      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
761        from mom_vecinv.F (similar to mom_fluxform calls).
762    o pkg/mom_common (bottomdrag):
763      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
764      - add options for alternative discretisation of velocity norm in quadratic
765        bottom drag: averaging of grid-cell-center KE to U.point and V.point
766        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
767        improves when averaging only the other component (e.g. vVel for U bottom
768        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
769      - add options (bottomVisc_pCell) to account for partial-cell in bottom
770        friction (no-slip BC) thus getting the true distance from the bottom;
771        off by default since this also reduces model stability (explicit bottom
772        friction). Changes produce different machine truncation with linear-drag
773        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
774        front_relax (bvp & mxl, 10 & 11 digits).
775    o model/src & mom pkgs:
776      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
777        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
778      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
779        just copy level Nr value to level Nr+1.
780    o doc:
781      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
782    o pkg/shelfice:
783      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
784        SHELFICE.h: move array shelficemass to init_varia, initialise
785        from array shelficemassinit, which is set in init_fixed and
786        has option to be set from file; introduce array
787        shelficeMassDynTend array, set thru file in init_fixed
788      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
789        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
790        pkg/streamice
791      - shelfice_thermodynamics.F: call shelfice_step_icemass if
792        SHELFICEMassStepping = .true.
793      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
794    
795    checkpoint65h (2014/12/17)
796    o verification/global_ocean.90x40x15, global_ocean_ebm:
797      - update to generic controls.
798    o pkg/ctrl:
799      - ctrl_map_ini_genarr.F: test for igen>0
800      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
801      - move gentim2d part of ctrl_map_ini_genarr.F to
802        new separate routine : ctrl_map_ini_gentim2d.F
803      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
804        add time variable weights and cyclic controls (time mean,
805        seasonal cycle, etc) capabilities to gentim2d
806    o pkg/ecco:
807      - move reading of error, conversion to weights from
808        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
809    o global_oce_llc90, cs32:
810      - activte sbo.
811      - CTRL_SIZE.h : add maxCtrlProc.
812      - activate the new genctrl capabilities.
813      - update following reorganization of global_oce_input_fields.tar.gz  
814    o pkg/ctrl/ctrl_ad_diff.list:
815      - add missing ctrl_init_rec.f
816    o tools/OAD_support/keepOriginal:
817      - add ctrl_init_rec.F
818    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
819      - avoid recomputations of xx_gentim2d_dummy.
820    o momentum diagnostics:
821      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
822        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
823    o pkg/seaice/seaice_lsr.F:
824      - fix computation of BU/BV, make sure they are non-zero, only necessary
825        for cubed sphere exchanges and SEAICE_OLx/y>0.
826        This makes calling s/r fill_cs_corner_rl obsolete (removed).
827    o verification/global_ocean.cs32x15/input.seaice
828      - add test for strong implicit coupling and restricted addtive Schwarz
829        methods for LSR
830      - update results/output.seaice.txt
831    o verification/tutorial_global_oce_biogeo:
832      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
833        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
834        update output_adm,_oadm,_tlm.txt
835    o pkg/dic:
836      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
837      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
838        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
839    o verification/tutorial_global_oce_biogeo:
840      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
841        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
842        update output_adm,_oadm,_tlm.txt
843    o eesupp/src:
844      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
845        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
846    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
847      LSR (following Hutchings et al. 2004)
848      - introduce zetaZ as a global variable (requires adjustments in
849        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
850        in seaice_calc_viscosities.F
851      - new flag SEAICEuseStrImpCpl (default off)
852      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
853        momentum equations
854      - JFNK-solver (preconditioner) adjusted to allow using this method
855        (where it does not have any positive effect)
856    o pkg/seaice
857      - add overlap for restrictive additive Schwartz method also to LSR, but
858        turn it off by default (because it only seems to work for non-cubed
859        sphere/llc topologies)
860    o pkg/autodiff
861      - add extra exchanges in addummy_in_steppging also for mnc output
862    o pkg/seaice:
863      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
864        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
865    o pkg/obcs:
866      - add option to specify domain-connected piece Id along OB though files
867        (for now, only used to diagnose PhiVel; default =1 -> global correction)
868      - modify obcs_diag_balance.F to process each connected-part separately;
869        exclude OB where Id = 0 but keep the full divergence there (-> constant
870        Psi along this portion of OB and all inflow derived from grad(Phi))
871      - add example of OB-conect files in verification/so_box_biogeo/input.
872    o pkg/diagnostics:
873      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
874      a) use non zero matrix element across OB and solve for Phi 1 grid point
875         outside OB (i.e, where tracer OBCS are applied).
876      b) global imbalance of inFlow/outFlow across OB: instead of modifying
877         velocity across OB, spread it uniformly along the OB in the RHS.
878    
879    checkpoint65g (2014/11/19)
880    o pkg/diagnostcis:
881      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
882    o pkg/my82,pp81,kl10:
883      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
884        field diffKr as background diffusivity to set minimum diffusivity value.
885    o pkg/seaice:
886      - add new parameter SEAICEuseEVPrev (for revisited EVP by
887        Bouillon et al 2013)
888      - add SEAICE_evpAlpha/Beta to namelist
889      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
890        involve trivial re-ordering of divisions/multiplications that should not
891        have any effects, but ... they do change the results of lab_sea.hb87 so
892        that only 2 digits of agreement remain, in line with the general
893        instability/fragility of the evp-code. For now, I do not care and just
894        update the verification experiment
895    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
896      - remove xx_genarr2d_numsmooth etc
897      - use xx_genarr2d_preproc etc instead
898      - carry out smooth_correl2D at initialization stage rather than during
899        time stepping.
900      - get smoothOpNb from xx_gentim2d_preproc
901    o global_oce_cs32 :
902      - add test of generic ecco capabilities.
903    o pkg/exf/exf_getsurfacefluxes.F :
904      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
905    o pkg/ctrl,ecco :
906      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
907        is defined.
908    o pkg/seaice: add diagnostics for Delta (deformation parameter)
909    o model/src:
910      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
911        diffusivity (background) is specified but ignored.
912    o verification:
913      - in testreport, convert hostname to lower case for default output dir name
914    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
915    o pkg/dic: add modifications from Hajoon:
916      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
917      - light attenuation: add self-shading effect by climatological Chlorophyll
918        (read from file).
919    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
920        compiles when SEAICE_ALLOW_DYNAMICS is undefined
921    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
922        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
923        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
924        approach where CPP_OPTIONS.h includes an omnipotent
925        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
926    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
927        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
928    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
929        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
930        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
931    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
932      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
933      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
934      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
935      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
936    o pkg/ctrl,ecco,exf :
937      - remove variables associated with NON-generic costs,
938        unless ECCO_CTRL_DEPRECATED is defined.
939      - remove NON-generic NON-obcs controls,
940        unless ECCO_CTRL_DEPRECATED is defined.
941    o pkg/ctrl : added ctrl_local_params.h
942    o pkg/ecco : added ecco_local_params.h
943    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
944        experiments, which will progressively be removed once the
945        experiments are revised to use only generic controls/costs.
946    
947    checkpoint65f (2014/10/13)
948    o pkg/ctrl, ecco, seaice : minor changes in headers
949    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
950        cost function and control capabilities added since checkpoint65c.
951    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
952    o pkg/ecco: increase modularity and improve logic
953      - ecco_toolbox.F (new) : basic operations that are often used,
954        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
955        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
956      - cost_gencal.F (new) : determine filnames and records.
957      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
958      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
959        and exploit the above functions leading to more compact code.
960      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
961      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
962        using_ers, using_gfo, using_mdt is now only defined within gencost)
963    o pkg/ecco: extend generic cost capabilities
964      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
965        capabilities via gencost_preproc (+ _c,_i,_r related params),
966        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
967        gencost_outputlevel arguments to cost_generic
968      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
969        and active_read, making room for gencost_preproc to take effect.
970        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
971      - pkg/ecco/cost_generic.F :
972        compute and store misfit maks*(model-data) in localdif that is
973        then used in cost and for output, output misfit if outlev.GT.0
974      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
975        rather gencost_barfile for deciding whether to write barfile
976      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
977      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
978        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
979      - pkg/ecco/ecco_summary.F : report gencost variables
980      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
981    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
982    o pkg/ecco: internal re-organization
983      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
984        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
985        mv relevant variables definition from ecco_cost.h to ecco.h,
986        make sure gencost routines only include ecco.h)
987      - throughout : add missing CCP switches, rm unused variables,
988        and rm un-necessary CPP switches
989      - throughout gencost routines : replace modelstartdate with
990        gencost_startdate when needed
991      - cost_bp_read.F : use arguments, instead of common blocs
992        so that it can be used also by (new) cost_gencost_bpv4.F
993      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
994      - ecco_phys.F : compute etanFull
995      - ecco_readparms.F : rename using_topex as using_tpj, add
996        bpv4-grace to gencost list, initialize added parameters
997      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
998    
999    checkpoint65e (2014/09/28)
1000    o pkg/obcs:
1001      - replaced the just-added CPP options with run-time variables
1002        (see pkg/obcs/OBCS_PARAMS.h for details)
1003    o pkg/obcs:
1004      - add additional CPP options for sponge boundary layers
1005        (see pkg/obcs/OBCS_OPTIONS.h for details)
1006    o pkg/atm_phys:
1007      - implement simple (obliquity only, assuming circular planet orbit)
1008        seasonal cycle for incoming insolation ; used when run-time parameter
1009        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1010    o pkg/exf, pkg/ecco, pkg/ctrl:
1011      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1012      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1013      - implement gentim2d for xx_tauu, xx_tauv
1014    o pkg/ctrl, pkg/ecco :
1015      - fix and complement the generic controls implementation
1016    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1017        pkg/shelfice/shelfice_thermodynamics.F,
1018        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1019        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1020      - add weight in CTRL_GET_GEN calls
1021    o pkg/ctrl :
1022      - ctrl_get_gen.F : add weight as input parameter, and apply
1023        it directly rather than using smooth_correl2Dw (to be retired).
1024      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1025    o pkg/ctrl :
1026      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1027        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1028      - re-activate ctrl_summary (call in ctrl_init.F)
1029    o pkg/ctrl/ctrl_cost_gen.F :
1030      - fix CCP brackets, remove un-necessary myiter, mytime
1031    o pkg/ecco, pkg/ctrl :
1032      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1033      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1034      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1035      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1036    
1037    checkpoint65d (2014/09/15)
1038    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1039      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1040        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1041    o pkg/ctrl/ctrl_map_ini_genarr.F :
1042      - remove compilation failure
1043      - replace hard coded example
1044      - use ctrl_map_ini_gen2D, 3D
1045    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1046      - on/off switch based upon xx_genarr2d_weight,3d
1047    o src/packages_init_variables.F :
1048      - regroup pkg/estimation calls
1049      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1050        (moved to ctrl_init_variables)
1051    o cost/cost_init_varia.F :
1052      - remove ecco_cost_init_varia
1053        (moved to ecco_init_varia)
1054    o ctrl/ctrl_init_variables.F :
1055      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1056      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1057    o ctrl/ctrl_map_ini.F :
1058      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1059        (moved to ctrl_init_variables)
1060    o ctrl/ctrl_map_ini_ecco.F :
1061      - remove ECCO_PHYS (mv to ecco_init_varia)
1062      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1063    o ecco/ecco_ad_diff.list :
1064      - add ecco_init_varia.f
1065    o ecco/ecco_init_varia.F
1066      - new routine
1067    o pkg/streamice:
1068      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1069        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1070      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1071    o pkg/generic_advdiff:
1072      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1073    o pkg/exf:
1074      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1075         xxg_precip capability
1076      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1077    o pkg/ctrl:
1078      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1079    o model/src/load_fields_driver.F :
1080      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1081        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1082    o OpenAD verification experiments:
1083      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1084        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1085        for now, only in pkgs used in OpenAD verification experiments.
1086      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1087        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1088        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1089        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1090    o OpenAD verification tests:
1091      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1092      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1093        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1094      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1095        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1096    o model/src & generic_advdiff:
1097      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1098        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1099        dynamics requires valid tracer forcing only over tile interior but, for
1100        some diagnostics, may need to extend it over 1 point in tile halo region.
1101      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1102        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1103        setting in temp/salt/ptracer_integrate.F
1104    o pkg/dic:
1105      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1106        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1107        in gchem_forcing_sep.F
1108    o pkg/autodiff & obcs:
1109      - add storage of current OB values for U & V (was already done for T & S).
1110    
1111    checkpoint65c (2014/08/30)
1112    o pkg/dic:
1113      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1114        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1115        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1116    o verification:
1117      - new experiment testing OBCS and DIC pkgs, using params & output from
1118        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1119        passage: take OBCS from the last year of a 2 yrs simulation and initial
1120        conditions from t=1.yr while keeping the same forcing.
1121    o model/src:
1122      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1123        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1124    o pkg/diagnostics (Stats-Diags):
1125      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1126        a) refine region where stats are computed, excluding where arrhFac=0 ;
1127        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1128        c) extend regional stats over the region edges (for U or V pt location).
1129    o pkg/gchem:
1130      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1131        pkg/dic is currently changing/updating ptracers values beyond the OB).
1132    o verification (hs94):
1133      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1134        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1135        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1136        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1137    o pkg/ptracers:
1138      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1139        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1140      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1141        with AB-2 code (so that it get tested).
1142    o model/src:
1143      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1144        with AB-2 code (previously only available with AB-3 code).
1145        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1146        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1147        there, by calling CYCLE_AB_TRACER).
1148    o pkg/generic_advdiff:
1149      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1150        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1151        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1152        S/R temp/salt/ptracers_integrate.F
1153    o model/src & pkg/ptracers:
1154      - remove common block variables gT,gS (in DYNVARS.h), except when
1155         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1156      - remove common block variable gPtr.
1157    o model/src & pkgs:
1158      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1159         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1160         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1161         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1162      + change accordingly all calling S/R.
1163      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1164        in S/R temp/salt/ptracers_integrate.F
1165    o pkg/seaice:
1166      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1167        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1168      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1169        in seaice_lsr
1170      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1171        in s/r seaice_lsr_calc_coeffs
1172    o pkg/mdsio:
1173      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1174        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1175        too long (e.g., > MAX_LEN_FNAM/2 )
1176    
1177    checkpoint65b (2014/08/12)
1178    o pkg/matrix:
1179      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1180    o model/src:
1181      - fix initialisation of geothermalFile; compile geothermal-flux code in
1182        natl_box verification experiment.
1183    o model/src & pkg/down_slope:
1184      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1185      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1186        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1187        results at machine truncation level: update output of experiments
1188        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1189    o pkg/diagnostics (Stats-Diags):
1190      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1191        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1192        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1193        times (but Min,Max and StD are still wrong).
1194    o model/src:
1195      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1196        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1197    o model/src:
1198      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1199        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1200        arrays are already updated while adjustments (filters, conv.adjustment) are
1201        still applied later, in S/R TRACERS_CORRECTION_STEP.
1202    o model/src:
1203      - store in common bloc array "rhoInSitu" the virtual potential temperature
1204        anomaly that is used to compute geopotential: this make the atmos code
1205        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1206    o pkg/seaice/seaice_lsr.F
1207      - rename integer variable ilcall to ipass (that's what it is called
1208        in the residual diagnostics
1209      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1210        default) for improved non-linear convergence of the first few steps
1211      - adjust a few comments and add new ones to explain some of the store
1212        directives
1213    o pkg/generic_advdiff (& ptracers):
1214      - re-work the code to check for valid advection scheme and for minimum
1215        size of overlap (now stored in local common bloc in gad_advscheme.F)
1216    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1217      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1218      - add an auxilliary variable "bet" and fix store directives and keys in
1219        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1220        less exact gradients in my tests); but there are still
1221        recomputation warning (although gradients are sort of OK), when
1222        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1223        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1224      - update verification experiments lab_sea.
1225      - change some comments in S/R seaice_calc_viscosities
1226    o model/src:
1227      - if staggerTimeStep=T, always apply exchange to velocity field in
1228        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1229        (independent of using multi-dim advection or not); no effect on FWD run
1230        but affects AD results (at machine truncation level): update output of
1231        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1232        and isomip (oad: 12.d).
1233    o pkg/generic_advdiff:
1234      - stop if doAB_onGtGs is set to FALSE but ignored
1235      - refine warning related to stability of tracer time-stepping
1236        regarding internal wave dynamics.
1237      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1238        on staggerTimeStep & implicitIntGravWave (will now get a warning
1239        if potentially unstable).
1240    o pkg/kl10:
1241      - add new pkg "kl10" for mixing due to internal wave breaking, from
1242        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1243        (contribution from Jody Klymak), tested in verification experiment
1244        verification/internal_wave/input.kl10/
1245    o isomip experiment:
1246      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1247        (input.htd) and update the output.
1248    o cd_code experiments:
1249      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1250        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1251        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1252        update the corresponding output.
1253    o pkg/seaice:
1254      - reduce the number of include files and store directives in
1255        S/R seaice_lsr_tridiagu/v
1256      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1257        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1258        get rid off one store directive (a TAF bug?)
1259      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1260        S/R seaice_lsr_tridiagv to change the loop range for consistency
1261      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1262      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1263        S/R seaice_lsr_tridiagu/v (requires update of
1264        offline_exf_seaice/input.dyn_jfnk)
1265    
1266    checkpoint65a (2014/07/27)
1267    o model/src:
1268      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1269        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1270        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1271        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1272    o model/src:
1273      - collect momentum forcing tendency into local 2-D array (passed as argument
1274        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1275        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1276        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1277      - collect T & S forcing tendency into local 2-D array (passed as argument to
1278        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1279        affects results at machine truncation level (e.g., ocean: if using
1280        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1281        correction due to vertical advection).
1282      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1283        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1284        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1285        obcs_ctrl (ad & fwd grd @ 12 & 7).
1286    o pkg/ptracers & diagnostics:
1287      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1288        title (to avoid some unexpected truncation); sort out ptracers diags units.
1289      - collect ptracer forcing tendency into local 2-D array (passed as argument
1290        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1291    
1292    checkpoint65 (2014/07/18)
1293    o pkg/fizhi:
1294      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1295        affects results at machine truncation level. Update output of experiments
1296        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1297    o pkg/seaice: more clean up
1298      - rename TAF common block tapes to be more consistent and remove
1299        unnecessary duplicates
1300      - add store directives to remove more recomputations, but use smaller
1301        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1302        The idea behind this flag is to reduce the memory footprint when the
1303        adjoint of the LSR is not required. As of now, defining the flag
1304        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1305        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1306        For experiment offline_exf_seaice, this means on a linux box with gfortran
1307        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1308        this experiment):
1309        > size mitgcmuv_ad
1310        text    data        bss     dec        hex
1311        5100659 1216  220458952  225560827  d71c8fb
1312        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1313        but only a moderate increase of 36% for global_ocean.cs32x15:
1314        text    data        bss     dec        hex
1315        6695027 1648 1014578664 1021275339 3cdf6ccb
1316        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1317      - note: there are still recomputations in global_ocean.cs32x15 and
1318        offline_exf_seaice and the gradient agreement changes (gets a
1319        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1320      - in general, the AD gradients still are wrong
1321    o OpenAD
1322      - clean up code_oad/ directories somewhat by moving files
1323        dontCompile, dontTransform, keepOriginal to OAD_support/
1324    o model/src:
1325      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1326        (not currently tested): add dissipation terms before NLFS rescaling of
1327        tendencies (previously done after).
1328    o pkg/diagnostics:
1329      - write stats-diags in ascii file with more digits (same as in monitor).
1330    o pkg/down_slope:
1331      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1332        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1333    o model/src:
1334      - new file "apply_forcing.F" containing all the code previously in
1335        external_forcing.F, but with new argument list: pass, as new argument,
1336        the current level tendency array to update (instead of a direct update
1337        of the common bloc array). Change the corresponding calls.
1338      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1339        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1340    o pkg/seaice/seaice_lsr, a little bit of clean up
1341      - rearrange some code blocks, so that now all calculations for
1342        setting up the right-hand-sides done within one single block
1343        (I find that easier to read and understand)
1344      - rearrange freedrift-code to reduce the number of ifdefs
1345      - adjust some indentations and comments
1346    
1347    checkpoint64z (2014/07/10)
1348    o model/src and several pkgs:
1349      - change argument list of all S/R called from external_forcing.F and
1350        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1351        to pass, as argument, the current level tendency array to update
1352        (instead of a direct update of the common bloc array).
1353      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1354      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1355    o pkg/seaice/seaice_lsr.F
1356      - always initialize local arrays in seaice_lsr_tridiagu/v
1357      - add more local tapes to seaice_lsr_tridiagu/v
1358      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1359        keep it in bi/bj loop; this seems to be essential
1360      - gradients are still wrong but only by 4-7 orders of magnitude
1361        instead of 15 orders of magnitude, lab_sea improves a little
1362    o pkg/seaice
1363      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1364        generates unnecessary code in seaice_lsr_ad
1365      - add more store directives in seaice_lsr to avoid unnecessary code
1366        in seaice_lsr_ad
1367      - exclude some residual computations in seaice_lsr when
1368        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1369        in seaice_lsr_ad
1370      - add more storing, a new tape (model/src/the_main_loop.F) and
1371        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1372        and klockey should be checked by a specialist)
1373      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1374        and update lab_sea after previous changes in pkg/seaice below
1375    o pkg/autodiff:
1376      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1377        viscFacInAd : run time parameters allowing for adjoint switches
1378        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1379    o pkg/ecco:
1380      - introduce cost_gencost_boxmean.F that computes a box mean
1381        temperature (for use in adjoint sensitivity studies).
1382    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1383    o pkg/mom_common/mom_calc_visc.F:
1384      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1385    o pkg/seaice/seaice_summary.F:
1386      - statement for SEAICEadjMODE now in autodiff_readparms.F
1387    o pkg/seaice:
1388      - remove some store directives and add new ones in an effort to get
1389        finally rid off the recomputation warnings. This is successful
1390        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1391        defined (i.e. no extensive recomputation warnings left), but there
1392        are still too many recomputations on the solver iteration level
1393      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1394      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1395        SEAICE_SIZE.h
1396      - add a store directive in S/R seaice_calc_viscosities
1397    o pkg/seaice (ITD code):
1398      - fix definition of Hlimit for multi-threaded case
1399      - use double precision arithmetic to compute Hlimit: this affects results;
1400        update output of experiment seaice_itd.
1401    o replace content of verification/seaice_itd
1402      - instead of a 1D column use the configuration of offline_exf_seaice
1403        to test the ice thickness distribution code with ridging
1404      - this is a first shot at this experiment
1405      - change of some defaults of ridging parameters SEAICEhStar (from
1406        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1407        and lot of new comments.
1408    
1409    checkpoint64y (2014/06/20)
1410    o pkg/seaice/seaice_reg_ridge.F:
1411      - modify the regularization of very small volumes of ice; only check
1412        total volume HEFF, and do not apply correction to individual ice
1413        classes because that leads to funny patterns in the heat and fw-fluxes
1414        into the ocean. Adjust seaice_itd/results/output.txt
1415      - replace nITD by SEAICE_multDim in loop-ranges
1416    o pkg/exf:
1417      - add code to process the case field period = -12. with UV interpolation.
1418      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1419        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1420    o verification/global_with_exf:
1421      - switch all fields period to -12. (was previously untested) in input/data.exf
1422        (but keep secondary test ".yearly" unchanged); update the reference output.
1423    o pkg/cal:
1424      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1425    o pkg/exf:
1426      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1427        to replace logical switch "exf_verbose"
1428      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1429    o pkg/sbo:
1430      - update from Katherine Quinn: evaluate mass directly from density and SSH
1431        (budget using Finite Volume method) instead of from bottom pressure.
1432      - allow testreport to collect few selected SBO output ; tested in exp.
1433        global_ocean.90x40x15 (after updating the results, to include SBO output).
1434      - fix some multi-threading issues (in output part).
1435    o model/src & most packages:
1436      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1437      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1438        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1439        "data.{pkg}" exist ; and leave the S/R (return) just after.
1440      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1441        + call LAND_READPARMS from packages_readparms.F
1442    o pkg/seaice:
1443      - remove code that resets useThSice in S/R seaice_readparms and
1444        replace it by a warning in S/R seaice_check
1445      - remove parameter MULTDIM, replace with nITD and runtime
1446        parameter SEAICE_multDim (still hard-wired to nITD if
1447        SEAICE_ITD is defined)
1448    
1449    checkpoint64x (2014/05/24)
1450    o verification/lab_sea:
1451      - update adjoint and TLM output following changes to pkg/salt_plume
1452      - un-do the update after putting back local recip_Cp in few places.
1453    o pkg/salt_plume: modifications by An Nguyen:
1454      - add capability to do brine rejection (salt-plume) as function of
1455        volume+tracers (instead of only salinity tracer).
1456      - conserve volume by exchanging volume from each kLev to above to
1457        accommodate in-coming brine volume
1458      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1459      - switch KPP surf buoyancy due to brine forcing to 3-d
1460        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1461      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1462      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1463        in East/West Arctic.
1464    o pkg/sbo:
1465      - incorporate modifications from Katherine Quinn to enable the use of sbo
1466        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1467        output for future testreport verification (unfinished).
1468    o pkg/atm_phys:
1469      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1470        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1471        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1472    o pkg/seaice
1473      seaice_calc_ice_strength.F: modify expression to avoid divisions
1474        (affects truncation)
1475      seaice_do_ridging.F: clean up the insectarium
1476      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1477      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1478      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1479      - add some debugging information and error messages (warnings)
1480    o model/src: modifications relatd to atmosphere p*:
1481      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1482      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1483        of vertical profile tRef in geopotential background and anomaly.
1484      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1485        and pkg/atm_phys.
1486      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1487        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1488    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1489    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1490        not used right now, but can be used in BGC packages to fix conservation.
1491    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1492        other packages too.
1493    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1494        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1495    o model/src:
1496      - since we have several heat capacity (even in model/src), define "recip_Cp"
1497        as local variable (no longer in common block) to avoid any confusion.
1498      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1499    o pkg/exf:
1500      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1501        air density as function of air Temp, Humidity and atm pressure.
1502    
1503    checkpoint64w (2014/05/02)
1504    o verification:
1505      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1506        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1507        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1508        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1509        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1510    o model/src: for atmosphere in p* coords:
1511      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1512      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1513        but not yet activated.
1514    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1515      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1516      - this changes the results (but not for any verification experiment, because
1517        none tests this), but avoids having an extra field in the restart files
1518    o pkg/seaice: remove global variable TICE (not needed)
1519      - replace by TICES or local variable where necessary (cost_seaice_test,
1520        seaice_diagnostics_state)
1521      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1522      - use specific read/write routines for reading and writing individual leves
1523        of a multilevel field
1524    o pkg/ctrl & model/inc:
1525      - move additional anomaly fields of control vars (related to options:
1526         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1527        from DYNVARS.h into new header file: CTRL_FIELDS.h
1528    o pkg/seaice: some small modifications to the ridging code
1529      - make fw2ObyRidge a global variable and add the freshwater flux to
1530        seaice_growth
1531      - pass actual thickness from seaice_prepare_ridging, so that it is
1532        computed only in one place and compute it in the same way as in
1533        seaice_growth
1534      - initialise more fields in seaice_do_ridging that where cause floating
1535        point exceptions over land
1536    o pkg/seaice: preparations for ridging code and first real ridging code
1537      - move most of "PART 1" of S/R seaice_growth into a new and separate
1538        S/R seaice_reg_ridge that will both regularize the state variable after
1539        advection call the actual ridging routine;
1540      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1541        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1542      - remove ridging code from seaice_advdiff
1543      - clean up remaining part 1 of seaice_growth in an attempt to make it
1544        more readable (this is probably subjective)
1545      - call seaice_itd_redist once in the initialisation phase to have the initial
1546        conditions in the correct category
1547      - finally: add new ridging routine for ITD code
1548    
1549    checkpoint64v (2014/04/11)
1550    o pkg/ecco:
1551      - add runtime parameters mdt[start,end]date[1,2]
1552      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1553    o pkg/seaice:
1554      - make deltaC a global variable, so that it can be used in ridging code
1555      - first step towards ridging: introduce new routines that compute
1556        ice strength based on ridging parameters
1557      - add diagnostic for HSNOWITD
1558      - add opnWtrFrac as a global variable (required for ridging scheme)
1559    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1560      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1561        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1562    o verification/hs94.1x64x5:
1563      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1564      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1565    o autodiff:
1566      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1567        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1568        For now, only in pkgs used in verification/hs94.1x64x5.
1569      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1570        which are specific to TAF/TAMC).
1571      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1572        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1573        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1574      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1575        building mitgcmuv_ad (make adAll).
1576    o pkg/ecco:
1577      - cost_gencost_seaicev4.F:
1578         reformulate proxy cost as function of sst and local param SEAICE_freeze
1579         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1580      - add stop statement if old names siv4-[sst,vol] are used
1581      - add snapshots + cost reports for atmospheric longwave
1582      - remove factor 0.1 in front of wtau[u,v]
1583      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1584         ALLOW_TMI_SST_COST_CONTRIBUTION
1585    o pkg/atm_phys:
1586      - add some diagnostics for Short-wave and for convection S/R.
1587    o pkg/seaice/seaice_growth:
1588      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1589        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1590      - rearrange loop order for better vector code in the same code block
1591      - rewrite the floeDiameter formula to have fewer divisions
1592      -  (miraculously) none of this changes the results of seaice_itd
1593    o pkg/smooth:
1594      - move param smooth2Ddiffnbt to pkg/ecco
1595    o pkg/salt_plume:
1596      - salt_plume_frac.F:
1597         clean up local param names
1598         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1599    o pkg/rw:
1600      - add RS version of S/R READ_MFLDS_LEV.
1601    o pkg/streamice:
1602      - fix the restart test by writing/reading pickup_streamice files.
1603    o pkg/seaice:
1604      - refine checks for jfnk-related parameters
1605      - comment out if statement with SEAICEuseIMEX parameter as long as there
1606        is no IMEX code to avoid confusion and surprises
1607    
1608    checkpoint64u (2014/03/07)
1609    o verification/MLAdjust:
1610      - rename secondary test suffix:
1611         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1612         0.leithD -> AhFlxF  + switch to flux-form
1613         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1614         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1615    o pkg/mom_vecinv:
1616      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1617        to be before mom_calc_visc.F)
1618      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1619      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1620        this is simpler for the adjoint and for diagnostics.
1621    o model/src + pkg/momentum:
1622      - add input files for  2-D additional Western and Southern cell-edge wall
1623         (e.g., to add "thin-wall" where it is =1).
1624      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1625        using 2nd hFacZ that is computed from initial (fix domain) hFac
1626      - known limitations of thin wall implementation: not yet coded for sigma
1627        coords; not working with CD-scheme neither.
1628    o pkg/seaice:
1629      - rename recently introduced parameters from (wrong name) AB to
1630        BDF (backward difference time discretisation)
1631      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1632    o tools/adjoint_options:
1633      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1634    
1635    checkpoint64t (2014/02/01)
1636    o pkg/ecco
1637      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1638        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1639      - replace hard-coded record number and period which only work for monthly
1640        with read-in runtime param that works for other periods (month,day,year)
1641    o pkg/thsice
1642      - corrected store directive fixes thsice adjoint gradient checks
1643    o genmake2 & testreport:
1644      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1645        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1646        Update testreport accordingly. No need to set "export OPENAD=true"
1647        in adjoint_options/adjoint_oad anymore (will be removed later).
1648    o pkg/shelfice:
1649      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1650        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1651        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1652    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1653      - Changes to make GENARR more modular (i.e. invisible if not used)
1654    o model/src/temp_integrate.F and salt_integrate.F
1655      - re-include store directives that were removed on Dec 27th.
1656    o model/src/external_forcing_surf.F
1657      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1658        seaice_model in the adjoint that is problematic when seaice_model is
1659        turned off in the adjoint. The resolved issue dated back to July when
1660        EXTERNAL_FORCING_SURF call was moved.
1661        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1662    o pkg/exf/exf_check.F
1663      - fix a small bug again (originally found by Wentao Liu, now found again)
1664      - streamline error output
1665    o pkg/streamice and aim_v23:
1666      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1667        Apple's /usr/bin/cpp knows what to do:
1668        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1669        Target: x86_64-apple-darwin13.0.0
1670    
1671    checkpoint64s (2014/01/05)
1672    o tools/adjoint_options:
1673      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1674        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1675    o model/src:
1676      - remove some unnecessary TAF storage directives in forward_step.F and
1677        in dynamics.F (note: not always removed by TAF, e.g., double storage
1678        of kappaRU,kappaRV in former version of dynamics.F).
1679    o model/src & pkg/ptracers:
1680      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1681        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1682        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1683      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1684      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1685      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1686    o useSingleCpuInput separates single-CPU input from single-CPU output;
1687        for now only implemented for in exf_interp_read.F
1688    o verification/advect_xy:
1689      - fix missing EXCH call in local version of ini_salt.F and update output.
1690    o momentum diagnostics:
1691      - fix which deltaT is used in Total-Tendency diagnostics.
1692      - fix typo in diagnostics for momentum tendency from AB.
1693    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1694        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1695    
1696    checkpoint64r (2013/12/08)
1697    o verification/*/results:
1698      - Update reference output of experiments that were passing with just 13 digits
1699         (make it easier to detect future changes in results)
1700    o model/src & pkg/ptracers:
1701      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
1702        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
1703        to inside ptracers_integrate.F ; remove ptracers_advection.F
1704    o coupling interface pkgs:
1705        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
1706      - change the config check to test the agreement of Ocean Depth
1707        with ATM land/sea mask (instead of ATM orography);
1708      - send to coupler the number of coupler time-steps to do for this run:
1709        this allows to check for consistency and don't need anymore to be
1710        specified in parameter file "data";
1711      in coupler:
1712      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
1713      - improve report to log-file of config setting (pass log-file unit to few S/R)
1714    o pkg/compon_communic:
1715      - add coupling send/receive for non-tiled integer vector;
1716      - add S/R to check and stop if any proc has an error (similar to
1717        eesupp/src/stop_if_error.F but single thread and across Comm_World).
1718    o pkg/exch2:
1719      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
1720        through list of all tiles my proc owns.
1721    o model/src:
1722      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
1723        from rTrans) to simplify dependencies (no need to store rTrans anymore in
1724        calling S/R); this affects AD results at machine truncation level:
1725        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
1726        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
1727    o tools/build_options:
1728      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
1729    o coupling interface pkgs:
1730        [compon_communic, atm_compon_interf & ocn_compon_interf]
1731      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
1732        to each S/R that needs it; remove un-used variables.
1733      - change component tile registration (cpl_register.F in both compon_interf
1734        and mitcomponent_tile_register.F) to pass the full list of tiles
1735        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
1736      - with pkg/exch2: adopt the same convention used for I/O to define mapping
1737        towards coupler global array (unless W2_useE2ioLayOut=F):
1738         a) can now use different tiling between atm & ocn comp.
1739         b) no needs to modify the run-Off map when changing tiling (was needed
1740            even if using the same tiling between atm & ocn).
1741         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
1742            full land tiles); not yet tested.
1743      - check for valid mapping from comp. tile to coupler global array
1744      - improve report of tile registration results to log file.
1745    o pkg/exch2:
1746      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
1747        tile-registration (CPL_REGISTER);
1748      - activate (un-comment) definition and setting of "W2_tileIndex" list to
1749        store the local bi,bj indices of each tile;
1750      - also print bi,bj in local report to log file;
1751      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
1752        Jun 2009 modif of pkg/exch2).
1753    o testing on baudelaire:
1754      - run 2 tests at a time: no significant slow down (since enough cpu) and
1755        get the full set of test done earlier
1756      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
1757    o model/src/thermodynamics.F and routines called from it:
1758      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
1759        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
1760        velocity (outp) by adding bolus velocity.
1761      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
1762        mass transport from velocity + lateral grid cell area
1763      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
1764      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
1765     in thermodynamics.F
1766      - remove k from thermodynamics.F and move it to temp_integrate.F
1767        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1768        loop).
1769      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1770        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1771        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1772        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1773      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1774        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1775        tutorial_tracer_adjsens (+ TLM output).
1776    o tools/OAD_support and (verification/*/) code_oad:
1777      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1778        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1779      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1780        version (closer to model/inc/CPP_OPTIONS.h).
1781    o model/src:
1782      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1783        retired list of parameters (routine FREEZE has been replace by surface
1784        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1785    o pkg/gmredi:
1786      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1787        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1788      - update output of FWD experiments: front_relax.bvp,
1789        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1790    
1791    checkpoint64q (2013/11/17)
1792    o verification:
1793      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1794        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1795      - generate new output (growth & melt) for seaice_itd experiment after
1796        updating the input pickup_seaice files (previously wrong).
1797    o pkg/cost:
1798      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1799        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1800        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1801          cannot be applied to var in common block).
1802        o allows to get results independent of tile-per-proc setting (if using
1803          slower GLOBAL_SUM_SEND_RECV option).
1804      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1805        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1806        forward gradients: update output).
1807      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1808        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1809    o pkg/mom_common:
1810      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1811        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1812        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1813        ensure that all field value that are used are set.
1814    o tutorial_deep_convection (smag3d):
1815      - add missing scaling in mom_calc_smag_3d.F;
1816      - set smag3D_coeff in input.smag3d such that results do not change.
1817    o pkg/dic:
1818      - change dic_cost.F to compute cost on each tile first and then apply
1819        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1820        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1821      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1822    o eesupp/src & pkg/mdsio:
1823      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1824        (from pkg/mdsio) since they are no longer used for tape IO.
1825      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1826        (+ keep a copy in pkg/atm_ocn_coupler).
1827    o verification/isomip:
1828      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1829    o tools/build_options:
1830      - optfile linux_amd64_ifort11, fast (no ieee) case:
1831        to get a working restart for all experiments, add "-fp-model source"
1832        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1833    
1834    checkpoint64p (2013/10/20)
1835    o pkg/autodiff:
1836      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1837        criteria, return to simple (default) tape IO format.
1838    o pkg/mdsio (+ eesupp/src):
1839      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1840        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1841      - fix globalFile and singleCpuIO options using simpler global mapping.
1842      - new pairs of scatter/gather vector S/R (one for each type, generated from
1843        template) corresponding to simpler global mapping.
1844      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1845        to globalFile when parameter globalFiles is set to True.
1846      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1847    o pkg/autodiff:
1848      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1849        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1850        missing, just add a STOP if array type do not match.
1851    o pkg/exf:
1852      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1853         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1854         and rename array obsSIce to exf_iceFraction.
1855    o tutorial_deep_convection:
1856      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1857        for now all in this exp. code dir.
1858      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1859        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1860    o eesupp/src:
1861      - added SINGLE_DISK_IO option because reading of parameter files on
1862        very large number of processors did not work with existing set-up
1863    
1864    checkpoint64o (2013/09/25)
1865    o pkg/atm_phys & atm_compon_interf:
1866      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1867    o tools/build_options:
1868      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1869        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1870        remove CPP setting (was identical to genmake2 default).
1871    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1872      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1873      - fixed up the calculation of the eddy stress and how it is added to the
1874        external forcing via taueddy_external_forcing.F
1875      - at the moment, it is very experimental and only works with the variable eddy
1876        diffusivity calculated in gmredi_k3d.F
1877    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1878        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1879    o testreport (& tools/do_tst_2+2):
1880      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1881    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1882      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1883      - add switch (for big setups) to use 'medium' memory-model (but leave it
1884        commented out for now). Note: needed with FC 19 to compile big setups.
1885    o pkg/atm_compon_interf:
1886      - regroup per field origin (model & pkgs) the coupling storage routines
1887         (which accumalate in time each coupling field)
1888      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1889        update accordingly + simplify aim_do_physics.F
1890    
1891    checkpoint64n (2013/08/26)
1892    o pkg/bbl:
1893      - update formulation to reduce dispersion of tracer properties in bbl
1894      - replaced horizontal and vertical transport parameters with velocities
1895      - changes results for verification/global_with_exf.yearly
1896    o verification/halfpipe_streamice:
1897      - change to matrix construction; update both Fwd & AD output.
1898    o verification/tutorial_tracer_adjsens:
1899      - OpenAD test: switch to vector-invariant momentum since fluxform with
1900        rStar causes problems with OpenAD; update output.
1901    o tools:
1902      - genmake2: define a common prefix for all temp-file names ; move them
1903        to local /tmp disk (but would be easy to move them back);
1904      - xmakedepend: apply the same switch for temp-files.
1905    o pkg/offline:
1906      - changes for use with rStar (NLFS): assume that we continue to provide
1907        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1908        output files) and apply r* scaling at each time-step (function of the time
1909        varying Eta field); use normal pickup files (needed for restart with NLFS).
1910    o adjoint with OpenAD:
1911      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1912        package openad.  This package has to be compiled for all runs with OpenAD
1913        instead of specifying code_oad_all as a modification directory.
1914      - link the fortran templates from tools/OAD_support to the build directory
1915        for preprocessing to avoid conflicts between different setups compiled
1916        simultaneously and simplify cleanup.
1917    o pkg/exf:
1918      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1919        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1920    o model/src:
1921      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1922        (similar to do_fields_blocking_exchanges.F).
1923    o tools/genmake2:
1924      - remove TAF output src code just before calling staf (when not doing a fresh
1925        built, will stop if things go wrong with staf).
1926      - fix target "adobj" (left from TAF version-2 transition)
1927    o pkg/diagnostics:
1928      - add a parameter to track the status of pkg/diagnostics activation;
1929        this replace/extend the use of logical param "settingDiags" (to check
1930        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1931        New S/R to print error message and stop when pkgStatus is not right.
1932      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1933    
1934    checkpoint64m (2013/08/13)
1935    o model/inc:
1936      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1937        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1938    o pkg/kpp & aim_v23:
1939      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1940    o pkg/seaice:
1941      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1942        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1943      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1944    o eesupp/src:
1945      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1946        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1947    o switch to TAF version-2:
1948      - add flow directives to "freeze" naming convention for ad-routines that
1949        are used in I/O routines of adjoint state and associated common blocks
1950        that are used in adcommon.h (backward compatible with version-1)
1951      - update all ad-optfiles (in tools/adjoint_options + few local to some
1952        verification exp) to switch to latest TAF version (currently 2.5.5);
1953        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1954        out except for diva).
1955      - the major change with TAF version-2 is that both the differentiated
1956        routines and the forward routines (new) are returned as part of the TAF
1957        output source code. Update genmake2 accordingly.
1958      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1959        with version-2 when compared to TLM or FWD gradient); other experiments
1960        output show minor changes (machine truncation level); update the few AD &
1961        TLM output with 12 matching digits only (some prior to version-2 switch).
1962    
1963    checkpoint64l (2013/08/05)
1964    o model/src:
1965      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1966      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1967        when using TAF but only if using OpenAD.
1968    o pkg/mom_common+fluxform+vecinv:
1969      - always set horiz. viscosity arrays to background value before calling
1970        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1971        only when using variable horiz. viscosity (useVariableVisc=T);
1972      - simplify mom_vecinv.F (only 1 block for momViscosity).
1973    o pkg/mom_common: variable horiz. viscosity in NH code
1974      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1975        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1976      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1977        useBiharmonicVisc & useVariableVisc.
1978      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1979        in calc_gw.F, version 1.27, 2006/06/20):
1980        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1981        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1982      - change background horiz viscosity in vertical momentum (gW) to always be
1983        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1984        any type of variable viscosity, e.g., viscAh/4Grid)
1985      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1986        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1987        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1988        default viscAh,viscA4 is zero).
1989    o model/src:
1990      - extend length of drC & recip_drC from Nr to Nr+1.
1991    o Divided Adjoint (DIVA) with MPI:
1992      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1993      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1994        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1995    
1996    checkpoint64k (2013/07/23)
1997    o tools/OAD_support:
1998      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1999        and remove it from genmake2.
2000    o tools/build_options:
2001      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
2002        MPI_HEADER_FILES list (let genmake2 find the missing headers)
2003    o verification/halfpipe_streamice:
2004      - change to driving stress formulation; update both Fwd & AD output.
2005    o tools/genmake2 and Divided Adjoint with MPI:
2006      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
2007      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
2008      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
2009        Makefile, which is set by genmake2, and check which mpi-headers are needed.
2010        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
2011      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
2012    o testreport:
2013      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
2014        perform additional runs (number of additional runs is "add_DIVA_runs" taken
2015        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
2016    o verification/lab_sea (AD test):
2017      - change to test Divided Adjoint Run in this set-up (both standard AD test
2018        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
2019    o pkg atm_ & ocn_compon_interf:
2020      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
2021        staggerTimeStep implementation) and disable (retired) corresponding
2022        parameter.
2023    o pkg/offline:
2024      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
2025      - add S/R OFFLINE_CHECK to print offline parameter summary
2026        and stop if loading a file that is not used;
2027      - enable to calculate GMRedi tensor, KPP mixing and convective index
2028        when the corresponding file(s) is/are not specified (but pkg is used).
2029      - comment out resetting of monitorFreq (to endTime) since it still useful
2030        for monitoring CFL numbers and checking offline fields.
2031    o OpenAD:
2032      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
2033        smaller standard output) and generate new (smaller) output (on baudelaire
2034        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
2035    o model/src:
2036      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
2037        (where external_forcing_adjust was called) and change list of arguments;
2038      - merge external_forcing_adjust.F into external_forcing_surf.F
2039      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
2040        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
2041        previously in file "balance_relax.F", now removed); remove corresponding
2042        arrays in FFIELDS.h.
2043      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
2044        a hack for getting back surfaceForcingS (loaded from file) when using
2045        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
2046      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
2047        (was getting only 11 digits for AD-grad, due to different truncation
2048         error in AD code).
2049    
2050    checkpoint64j (2013/07/04)
2051    o pkg/offline:
2052      - to enable the use of other features with pkg offline (e.g., obcs),
2053        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
2054      - comment out "allowFreezing" (now active) in 2 offline testing exp.
2055  o pkg/exf ALLOW_RUNOFTEMP  o pkg/exf ALLOW_RUNOFTEMP
2056    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
2057    - added RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice    - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
2058    - changes verification/global_ocean.cs32x15/results/output.seaice.txt    - changes verification/global_ocean.cs32x15/results/output.seaice.txt
2059  o pkg/atm_phys:  o pkg/atm_phys:
2060    - allows to add some damping on uVel,vVel (strength only function of k).    - allows to add some damping on uVel,vVel (strength only function of k).

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