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revision 1.1980 by mlosch, Wed Apr 23 12:42:19 2014 UTC revision 1.2245 by mlosch, Fri Apr 22 09:11:45 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/seaice:
8      - add basal stress as parameterisation for grounding ice
9        following Lemieux et al. (2015)
10      - turn on by setting new parameter SEAICEbasalDragK2 to a value
11        larger than 0. Lemieux et al. (2015) recommend 15.
12      - The adjoint complains with extra recomputations so there is also a
13        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
14        order to postpone the problem
15      - compile the new code in lab_sea
16    o verification/halfpipe_streamice:
17      - update both TAF and OpenAD adm output (machine truncation differences)
18    
19    checkpoint65v (2016/04/08)
20    o verification/advect_xz:
21      - increase overlap size from 3 to 4 and add new secondary test for PQM
22        advection scheme (with mono & wino limiter).
23      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
24    o model/src:
25      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
26        added phi0Ref) to set vertical axis origin and phiRef origin;
27        keep Ro_SeaLevel for backward compatibility (with a warning).
28       According to coordinate and fluid type:
29        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
30        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
31        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
32        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
33      - remove Ro_SeaLevel from ATM experiment parameter files;
34      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
35        complement; update output.txt (changes at machine truncation level).
36    o pkg/seaice/seaice_evp.F
37      - simplify computation of deltaZ and zetaZ to simple averaging following
38        Bouillon et al. (2013). This removes a lot of code, but also changes
39        verification experiment lab_sea.hb87 -> updated
40    
41    checkpoint65u (2016/03/14)
42    o pkg/generic_advdiff:
43      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
44        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
45        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
46        testing and not for actual use.
47    o model/src:
48      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
49        origin r = rF(1);
50      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
51        in EOS for height coordinate: enable to include NH Pressure or to use
52        more accurate pressure vertical profile; options not linked to EOS type
53        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
54      - start to implement variable gravity (along vertical): for now, only with
55        z-coords (not even z*).
56      - add Ideal Gas equation of state for height coordinate.
57      - update OpenAD output (affected at machine truncation level) of exp:
58        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
59    o pkg/exf:
60      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
61        of exf interpolation (before any rescaling, rotation or interpolation
62        to velocity point) for each field that gets loaded from file. This option
63        identically mimics the input file organization (e.g. record numbers in year
64        by year input files) besides the change in horizontal grid.
65      - add rotateStressOnAgrid run-time switch so that wind stress fields
66        can be provided on the A-grid in zonal/meridional direction and
67        rotated on the fly. This only applies to the case when the exf
68        interpolation is off and rotateStressOnAgrid is false by default.
69    o model/src:
70      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
71        it's also used with pkg/atm_phys) and add few more parameters (but still
72        inactive, src code yet to come)
73    
74    checkpoint65t (2016/02/10)
75    o pkg/atm_phys:
76      - from Ruth Geen: add optical depth dependence on CO2 concentration.
77    o model/src:
78      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
79        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
80        Update output of exp. deep_anelastic (changes at truncation level).
81    o tools:
82      - add a hack in "remove_comments_sed" (used only with TAF) for recent
83        version of OpenMPI (shipped with FC.23): comment out the new header
84        file "mpif-sizeof.h" which causes problems to TAF.
85    o pkg/seaice:
86      - change the termination criterion so that maxits (SEAICElinearIterMax)
87        has an effect
88      - unify iteration parameters for implicit solvers (JFNK and Picard)
89        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
90        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
91        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
92        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
93        SEAICEnonLinTol     replaces JFNKgamma_nonlin
94      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
95      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
96        use with SEAICEuseKrylov
97    o pkg/seaice/seaice_lsr.F
98        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
99        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
100        an effect.
101    o pkg/seaice: add two new parameters
102      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
103        parameter is not in any namelist)
104      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
105        a preconditioner for the non-linear Newton iteration of the JFNK
106        solver
107    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
108      affects some experiments at truncation level:
109      - global_ocean.cs32x15.icedyn (11 digits),
110      - global_ocean.cs32x15.seaice (11 digits),
111      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
112      - also update global_ocean.cs32x15 adjoint and tangent-linear results
113    o pkg/salt_plume & pkg/thsice:
114      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
115        connect salt_plume flux to ATM-OCN coupling pkgs interface:
116       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
117         export to coupler interface) even without compiling pkg/salt_plume ;
118       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
119         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
120    o pkg/dic:
121      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
122        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
123        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
124      - move also update with values from ATM-OCN Coupler in the same new S/R
125        (previously done in ocn_apply_import.F).
126    o tools/adjoint_options:
127      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
128        has been changed on Jan 14, 2016.
129    o pkg/ggl90:
130      - add alternative discretisation of vertical shear (off by default), to
131        compute the mean (@ grid-cell center) of vertical shear compon instead of
132        vertical shear of mean flow (@ grid-cell center).
133      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
134        results on adjacent faces of cubed-sphere grids; this fix the restart.
135    o pkg/atm_compon_interf:
136      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
137        pass last value, stored directly before export to CPL ;
138        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
139      - remove atmSLPr from pickup files (no longer needed for restart)
140    
141    checkpoint65s (2016/01/13)
142    o eesupp & genmake2:
143       - first check for Function ETIME and, if it fails, then check for subroutine
144         ETIME and consistent output; use the appropriate version in timers.F
145    o model/src:
146      - to check restart test, add option to apply EXCH to U,V earlier, just before
147        integr_continuity; turned off by default.
148    o pkg/dic:
149      - remove CPP option USE_ATMOSCO2 (not needed)
150    o tools/tst_2+2:
151      - try to ignore difference between +0 and -0 in binary file, causing test
152        to fail for no good reason.
153    o eesupp & genmake2:
154      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
155        but also check (in genmake2) that test runs and returns meaningful results.
156    o coupler pkgs:
157      Finish implementation of optionally-exchanged variable switches (started on
158       Nov 12) with addition of few more exchanged fields, including 2-way exchange
159       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
160       advection in OCN component; this requires sequential coupling.
161      coupler (pkg/atm_ocn_coupler):
162      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
163        routines (useful for debug).
164      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
165         flux, DIC fields) if corresponding switch is ON.
166      - add option to export RunOff to OCN (to use for DIC river input)
167      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
168      components (pkg/atm_ & ocn_compon_interf):
169      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
170        optionally exchanged fields; add a check & stop in cpl_readparms.F.
171        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
172        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
173      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
174        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
175      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
176      - hold in common block coupler optionally-exchanged variable switch
177        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
178      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
179        this is intended to replace the OCN cplFldtave.* output files (not updated
180        to contain new additional exchanged fields).
181    o pkg/dic:
182      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
183    o pkg/thsice:
184      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
185        and writing of thsice pickup files.
186    o pkg/atm_compon_interf:
187      - move all field individual export-call out of cpl_export_import_data.F
188        into new S/R ATM_EXPORT_FIELDS
189    o pkg/atm_compon_interf:
190      - store state variables (for now, only thSIce fields) just before beeing
191        exported (in cpl_export_import_data.F, like on ocean side) instead of from
192        atm_store_my_data.F like all exported fluxes.
193      - new version of pickup_cpl: write field names into meta file and read meta
194        file to find field postion in pickup. Also only write/read fields meeded for
195        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
196    o pkg/dic:
197      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
198    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
199        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
200        value can be from domain [0,1] to average between the two methods
201    o pkg/atm_phys:
202      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
203        hold fixed in time).
204    
205    checkpoint65r (2015/12/21)
206    o pkg/seaice:
207        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
208        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
209    o pkg/seaice:
210      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
211        when SEAICEscaleSurfStress=.TRUE.,
212      - apply areaW and areaS in S/R seaice_calc_lhs
213    o pkg/atm_phys:
214      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
215        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
216        for individual contribution (convection, LSC cond, radiation)
217      - add Ruth Geen etal, GRL 2016, radiation optionis (see paper supp.
218        information); activated with: solar_exponent=0. and wv_exponent=-1.
219    o pkg/ggl90:
220      - within IDEMIX add upper limit for horizontal group velocity to
221        avoid instability problems in the explicit horizontal diffusion term for
222        long time steps or high resolution
223    o pkg/diagnostics:
224      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
225        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
226    o testreport:
227      - remove "-v" (verbose option) in default mpirun command.
228    o pkg/seaice/seaice_growth:
229      - catch potential division by zero in ITD code, does not change
230        verification results
231    o pkg/ecco:
232      - retire old codes to the Attic. The calls to retired functions are
233        left in a commented form in case they ever need to be re-activated.
234      - ecco_check.F: issue warning if any old CPP option is
235        defined that corresponds to retired codes -- then stop.
236    o pkg/atm_compon_interf:
237      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
238        coupler: use last time-step value instead of average over cplSendFrq_iter
239        time-step, similar to what is done for seaIceMass.
240        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
241    o eesupp & genmake2:
242      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
243        <= remove until a fix is found for some ifort version on ia32 machine.
244    o pkg/seaice/seaice_evp:
245      - refine residual computation
246    
247    checkpoint65q (2015/11/18)
248    o pkg/seaice/seaice_evp:
249      - fix residual computations so that they no longer affect the actual
250        simulation code
251      - fix seaice_readparams to be able to actually set new parameters
252        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
253    o model/src:
254      - fix wrong truncation (single prec) from "FLOAT" function in expressions
255        like: deltaT*FLOAT(myIter) when myIter is large:
256         a) replaced by DFLOAT (if not seen by TAF);
257         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
258    o pkg/aim_v23:
259      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
260        when pickupSuff is set ; do write rolling pickups + at the end of the run.
261    o pkg/atm_ocn_coupler + ocn_compon_interf:
262      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
263        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
264        add corresponding call in DO_OCEANIC_PHYS.
265    o coupler pkgs:
266      Start a new way to set-up optionally-exchanged variables (previously, only
267       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
268       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
269       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
270       compononent param default can be set accordingly).
271      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
272       but rather applies to a group a fields (going both ways like for DIC)
273       and corresponds to an option of coupling config.
274      coupler (pkg/atm_ocn_coupler):
275      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
276        and read namelist directly (without eessup S/R calls) instead of
277        in the very un-flexible old way, 1 param per line, in fixed order;
278      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
279        cleanly in CPL_CHECK_CPLCONFIG
280      - add new coupling-exchange selectors (some not yet active) including
281        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
282                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
283      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
284        component ; called directly from coupler.F, after comp. registrations;
285      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
286         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
287          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
288      components (pkg/atm_ & ocn_compon_interf):
289      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
290        CPP header file in all pkg source files.
291      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
292        ATM/OCN_CHECK_CPLCONFIG;
293      - add error-counter to track errors (e.g., in "data.cpl") and to stop
294        cleanly in ATM/OCN_CHECK_CPLCONFIG;
295      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
296        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
297        before PACKAGES_READPARMS;
298      verification/cpl_aim+ocn/:
299      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
300        "data.cpl" for coupler (in input_cpl).
301    o eesupp/inc:
302      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
303        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
304        to always cumulate tile local-sum in the same order (still uses
305        MPI_Allreduce like standard code).
306      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
307        that are now identical to standard version (in eesupp/inc).
308    o pkg/shelfice:
309      - add SHELFICETransCoeffTFile for initializing spatially varying
310        heat and salt transfer coefficients
311    o pkg/atm_compon_interf & ocn_compon_interf:
312      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
313        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
314      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
315    o pkg/atm_ocn_coupler:
316      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
317    o pkg/rbcs:
318      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
319        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
320      - add a short report (to STDOUT) about RBCS-mask settings.
321    
322    checkpoint65p (2015/10/23)
323    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
324        there is no adjoint test for EVP, we don't know what it does to the adjoint
325        solution, but at least there are no more recomputation warnings left
326    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
327        a chance of giving the same results as a fully converged VP (JFNK) solver
328    o tools/adjoint_options/adjoint_diva:
329      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
330    o pkg/streamice:
331      - spotted bug in streamice_driving_stress using dyG where should have been dxG
332    o pkg/exf:
333      - remove STOP statement that prevented to use wind or (wind-)stress
334        interpolation for constant-in-time forcing fields (wind/stress period = 0).
335    o pkg/seaice:
336      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
337        5 additionals 2D fields and 6 new store directives
338      - change logic in seaice_readparms.F: EVP code can now be turned on in
339        various ways, setting SEAICE_deltaTev is no longer required,
340        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
341        or SEAICEaEVPcoeff
342    o pkg/shelfice/shelfice_thermodynamics.F
343      - redefining uLoc/vLoc to u/v, instead of 2u/v
344    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
345      - this is an intermediate state of a truely converging EVP that has
346        the potential of outperforming implicit VP methods, I do not recommend
347        using it yet.
348      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
349        and all parameters are hardwired
350      - for convergence it still requires very smooth regularisations, that means,
351        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
352        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
353        specific averaging appears to be required, still subject to tuning
354      - still needs cleaning and I need to turn parameter into runtime parameters
355      - add code to compute and print residuals of iteration, compile with
356        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
357    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
358      that entered with r1.54 on Sep04, 2015, -> update results
359    
360    checkpoint65o (2015/09/14)
361    o pkg/mom_vecinv & mom_common:
362      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
363        called from there.
364      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
365        allows to use Vector-Invariant form in deep atmos and anelastic formulation
366    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
367      and Koenig-Beatty+Holland (2012)
368      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
369      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
370      - requires an extra input argument for S/R seaice_calc_viscosities
371      - tensileStrength's depth dependence is different from Itkin et al. (2015)
372        (to be changed and played with, for now exponential)
373    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
374      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
375        by AREA according to Connelly et al. (2004), JPO.
376      - For EVP and the LSR solver, the implicit part of the drag term is
377        the only non-zero term in the denominator when there is no ice (which
378        prevented running the model with zero ice-ocean drag). If
379        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
380        (or zero main diagonals BU/BV) which need to be caught. A practical
381        consequence is that for open water, the momentum equation reduce
382        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
383        they happen to be zero, often leading to a non-zero solution over
384        open water.
385    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
386        efficient EVP method.
387      - introduce area-weighted averages for e12 (analogously to
388        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
389        remain, but also changing the order of terms in the previous average
390        changed the results as much) -> update experiment
391      - add SEAICE_DELTA_SMOOTHREG code
392      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
393        TEM-code
394      - adjust loop bounds so that only required fields are computed
395      - add new averaging code for zetaZ/deltaZ (again similar to
396        seaice_calc_viscosities.F), inactive by default for now (will change
397        results again), but will replace old code eventually
398    o eesupp/src:
399      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
400        to always cumulate tile local-sum in the same order
401        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
402        Still uses MPI_Allreduce (like standard code) but on array of tiles
403        and should be faster than GLOBAL_SUM_SEND_RECV code.
404      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
405        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
406      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
407         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
408         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
409         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
410         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
411    
412    checkpoint65n (2015/07/29)
413    o pkg/thsice:
414      - add a warning when used with pkg/aim but without updating SST
415        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
416    o pkg/offline:
417      - change where Offline-Fields are loaded, from load_fields_driver.F to
418        directly within FORWARD_STEP, just after updating iter number and time;
419      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
420        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
421       These changes allow:
422        a) to recover exactly on-line results using deltaToffline=deltaTClock,
423        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
424        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
425        time-step, both with GM & KPP files and with recomputing these fields;
426        b) no needs to switch on staggerTimeStep anymore;
427        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
428      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
429    o pkg/offline:
430      - change (rarely used) offset-iteration parameter to an offset time (in s):
431        can easily recover previous offset-iter effect by setting offset-time
432        (offlineTimeOffset) to offset-iter x deltaToffline;
433      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
434        in KPP as part of surface buoyancy forcing) in offline run.
435      - fix ptracers KPP non-local term in the case where KPP is re-computed.
436    o OpenAD
437      - Adding preliminary ggl90 test to OpenAD verification.
438        Config. with ggl90 currently diverges after 64 time steps
439        so will need more work to become more stable
440      - Adding preliminary kpp test to OpenAD verification.
441        required small tweakes in kpp_routines.F
442      - Merge and update from Krishna Narayanan's contrib area:
443        * Add one variable for preliminary OpenAD DIVA
444        * Add replacement time-stepping for OpenAD DIVA
445        * genmake2 flag -diva (but only for OpenAD; preliminary)
446        * required modifs for OAD_support
447        successful preliminary test for tutorial_global_oce_biogeo/
448    o pkg/seaice:
449      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
450      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
451        delta with a smooth function in s/r seaice_calc_viscosity
452        (no effect on EVP)
453      - rename local suffix "sqr" into "sq" for more consistent variable names
454    o pkg/seaice:
455        add new parameter SEAICE_deltaMin that is used ***only***
456        for regularizing Delta (and nothing else, like the parameter
457        which is also used for all sorts of things SEAICE_EPS).
458        Defaults to SEAICE_EPS for backward compatibility only.
459    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
460        the wrong key by inialising it before use -> fixes a recomputation
461        problem but does not fix the gradient
462    o pkg/layers:
463      - move resetting of flux arrays to outside the iLa loop
464        (this caused layers_diapycnal to not work with more than one layer coord.)
465      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
466    o pkg/layers:
467      - remove from common block 3D layers fields (used to diagnose transport
468        in tracer coords) and declare them as local arrays in layers_calc.F
469    o pkg/seaice:
470      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
471        in lab_sea forward experiment (changes results -> updated)
472      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
473    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
474       computations; for SEAICE_VECTORIZE_LSR
475      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
476        sweep to the outside,
477      - remove store directives and add "CADJ loop sequential" directives
478        in analogy to model/src/solve_tridiagonal.F
479      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
480        boundaries to yield more readable code. This has also the charming side
481        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
482        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
483        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
484        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
485        an additional option)
486       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
487       but the adjoint gradients (which are affected by this change) still explode.
488    o coupler (atm & ocn _compon_interf):
489      - avoid using Exch2 IO mapping if not suitable.
490    
491    checkpoint65m (2015/06/15)
492    o pkg/layers:
493      - clean-up old parameters setting (from Sep 2012):
494        + remove old parameters setting from common block (declared locally);
495        + stop if any old parameter is mixed with new parameters;
496        + check for valid or consistent parameter setting (e.g., layers_name)
497      - check that layers_bounds for Pot.Density are in the right range;
498        this is supposed to catch un-updated setting after recently shifting
499        potential density field "prho" by -1000 (now in "sigma" scale).
500    o pkg/layers:
501      - Added missing call to layers_fill for keeping track of tottend in
502        pkg/diagnostics/diagnostics_fill_state.F
503    o pkg/layers:
504      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
505        of diapycnal fluxes
506    o pkg/layers:
507      - reverted changes to interpolation to previous treatment; there
508        was never actually a problem
509    o pkg/layers:
510      - fix interpolation of layers tracers in the presence of partial cells
511      - add lots of new functionality to compute water mass transformation
512        (enabled by CPP flag LAYERS_THERMODYNAMICS)
513      - add new calls from main code (diags_oceanic_surf_flux.F,
514        thermodynamics.F, impldiff.F) and gad to save the necessary fields
515        for layers_thermodynamics calculations
516    o pkg/ptracers:
517      - add capability of stepping a passive tracer forward without advection
518        by setting PTRACERS_advScheme to 0.
519    o pkg/diagnostics:
520      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
521    o pkg/layers:
522      - shift potential density field "prho" by -1000 for density layer averaging so
523        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
524        Note that density bin boundaries (layers_bounds in data.layers) have
525        to be set accordingly (i.e., shifted, in sigma scale).
526    o pkg/layers:
527      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
528      - fix calculation of layer non-weighted velocity and layer probability
529      - add diagnostics for pot.density used for layer averaging
530    o pkg/seaice:
531      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
532        positiveness, modify a few comments and improve variable names,
533      - the changed computation of deltaC affects most seaice-related
534        experiments at the truncation level.
535        seaice_itd.thermo is affected by far the most, with
536        only 7 digits of agreement remaining; update experiments.
537    
538    checkpoint65l (2015/05/04)
539    o pkg/shelfice:
540      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
541        factor drKp1 to zero where it is negative (ie. do not use
542        SHELFICEBoundaryLayer if hFacC>1)
543      - the same for factor drLoc in shelfice_forcing.F
544    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
545        with modules in ptracers, when using testreport option "-small_f"
546    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
547      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
548    o verification/testreport
549      - add new option -small_f
550        with this option testreport first makes the target small_f (*.f files)
551        before running make (all). This is useful for explicit inlining when
552        all sources need to be full available.
553    o pkg/exf/exf_interp.F:
554        remove previous changes related to reverse (decreasing) input grids latitude
555    
556    checkpoint65k (2015/04/01)
557    o pkg/ecco:
558        fix missing cosphi initialization; use eccoiter in place of optimcycle;
559        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
560        instead of active read/write
561    o pkg/ctrl:
562        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
563        instead of active read/write.
564    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
565        return if .NOT.useAUTODIFF
566    o pkg/seaice: add CPP brackets (cost function related).
567    o model/src:
568        add useAUTODIFF run time switch.
569    o pkg/exf/exf_interp.F:
570        add code to allow input grids with latitude starting in the north (i.e. when
571        j=1 corresponds to northern edge of field); modify global_with_exf to test
572        this feature.
573    o verification/testreport:
574      - replace "grep -A3" with POSIX conformal sed command, because there are
575        implementations of grep that cannot do contextual searches
576      - replace "cat -n" by "nl" (two occurrences), because not all implementations
577        of "cat" have the option "-n"
578    o model/src:
579        add new file gsw_teos10.F that contains 3 functions, more or less a copy
580        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
581        convert from conservative to potential temperature. For now they are not
582        called anywhere.
583    o pkg/ggl90: make "useIDEMIX" useful
584      - re-organize code in s/r ggl90_calc a little to move computations that
585        are different for idemix into separate loops (changes verification
586        experiment idemix at truncation level, 12 digits remain -> updated)
587      - requires 2 new 2D fields KappaM, verticalShear
588      - make hFacI and recip_hFacI local 3D variables that are passed to
589        s/r ggl90_idemix
590      - fix and improve some comments
591    
592    checkpoint65j (2015/02/25)
593    o pkg/openad
594      - synchronize seawater.F with version in model/src: replace routine
595        body of sw_temp by calling sw_ptmp and fix/add a few comments.
596    o pkg/mnc:
597      - change default value of pickup_read/write_mnc params to FALSE
598        (since few features are missing in reading MNC pickup files).
599    o model/src:
600      - change default (background) vertical diffusivity for salt to be the
601        temperature (background) vertical diffusivity.
602      - change background vertical diffusivity in vertical mixing pkgs ggl90,
603        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
604        This makes ptracers default diffusivity (that uses salt diffKr) more
605        consistent with vertical mixing schemes.
606    o verification/testreport:
607      - fix typo in "-pcls" option ;
608      - put temp files in /tmp (instead of in local dir)
609      - add option "-ncad" to use genmake2 new option "-nocat4ad"
610      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
611    o pkg/ggl90 (idemix code):
612      - apply few fixes ; add some missing "_d 0" ; update output of exp.
613        global_ocean.90x40x15.idemix
614    o OpenAD
615      - enable active file I/O and begin removal of work-around code
616        for OpenAD for handling control variables (memory vs. active files)
617      - new CPP options file OPENAD_OPTIONS.h
618      - revert to genarr2d gradient check for hs94.1x64x5
619      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
620      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
621    o tools/genmake2:
622      - add option for an alternative Makefile (from Martin) where multiple
623        source files are sent to TAF (instead of all in one file).
624    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
625      - code provided by Carsten Eden as an extension of ggl90
626      - so far the code is turned on within ggl90 by setting a CPP-flag at
627        compile time; a runtime flag implementation is not yet complete
628      - tested in new verification experiment global_ocean.90x40x15.idemix
629    o verification:
630      - reduce length of the AD test run by half for experiments
631        global_ocean.cs32x15 (std + thsice) and isomip
632      - enable active file I/O for OpenAD, adjust verifications accordingly
633      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
634    o verification/testreport:
635      - fix two non-POSIX sed statements so that there are no error messages
636        on Mac OS X
637      - replace hostname -s with hostname | sed 's/\..*$//'
638    o model/src/seawater.F:
639      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
640        (following the matlab code), which would have avoided the bug caught
641        by Matt (see below) in the first place
642    o pkg/shelfice:
643      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
644        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
645      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
646        ice-shelf case (i.e., within surface level).
647      - add config summary in shelfice_check.F
648      - remove global variable recip_SHELFICElatentHeat and replace by a local
649        variable recip_latentHeat
650      - introduce diagnostics for friction velocity uStar (in case of
651        SHELFICEuseGammaFrict)
652      - change verification experiment isomip.htd:
653        + start from pickup (as input_ad at nIter0=8640)
654        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
655        + test SHELFICEuseGammaFrict = .TRUE.
656        + test SHELFICEadvDiffHeatFlux = .TRUE.
657    o model/src:
658      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
659        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
660        update output of experiments global_with_exf.yearly and isomip (all 6).
661    o pkg/shelfice:
662      - change setting of kTopC to also be zero where there is no ice-shelf.
663      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
664        ice-shelf is.
665      - first attempt to get RealFreshWaterFlux effects: for now, only without
666        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
667    o pkg/seaice: add the option to prescribe a fixed thickness PDF
668      for thermodynamic calculations
669      - because of divisions of the type 7/7 not exactly equal to 1, this change
670        affects results of some verification experiments by up to 4 digits:
671        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
672        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
673        adjoint: lab_sea, lab_sea.noseaicedyn
674        -> updated
675    
676    checkpoint65i (2015/01/23)
677    o model/src:
678      - change units of frictionHeating field from W to W/m^2
679      - fix bug in frictional heating from stratospheric drag in
680        S/R ATM_PHYS_TENDENCY_APPLY_V
681      - with synchronous time-stepping: move resetting to zero of frictionHeating
682        field from load_fields_driver.F to thermodynamics.F ;
683      - add diagnostics for frictional heating.
684    o model/src & gmredi K3D:
685      - add frictionHeating field to pickup-files (for synchronous time-stepping)
686      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
687      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
688        and name in pickup file).
689      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
690    o model/src:
691      - move (from ini_forcing.F) initialisation of all arrays in header file
692        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
693        (since Nov 2012) with option selectAddFluid=1.
694    o pkg/shelfice:
695      - change units (+ document) of newly added field "shelfIceMassDynTendency"
696      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
697    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
698    o pkg/seaice: two new runtime parameters:
699      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
700        long overdue
701      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
702        parameterization of tensil stress for fast ice (does not do anything yet)
703    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
704        for LSR: move checking overlaps out of JFNK-if-block
705    o pkg/atm_phys:
706      - move copy of grid and dynamical fields out of atm_phys_driver.F into
707        new S/R ATM_PHYS_DYN2PHYS.
708      - fix level height for Linear Free-Surf case (to be consistent with
709        fixed-in-time pressure levels).
710    o pkg/mom_common (bottomdrag):
711      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
712        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
713        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
714    o pkg/shelfice (u/v_drag):
715      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
716      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
717        (now similar to shelfice_u_drag.F)
718      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
719        from mom_vecinv.F (similar to mom_fluxform calls).
720    o pkg/mom_common (bottomdrag):
721      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
722      - add options for alternative discretisation of velocity norm in quadratic
723        bottom drag: averaging of grid-cell-center KE to U.point and V.point
724        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
725        improves when averaging only the other component (e.g. vVel for U bottom
726        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
727      - add options (bottomVisc_pCell) to account for partial-cell in bottom
728        friction (no-slip BC) thus getting the true distance from the bottom;
729        off by default since this also reduces model stability (explicit bottom
730        friction). Changes produce different machine truncation with linear-drag
731        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
732        front_relax (bvp & mxl, 10 & 11 digits).
733    o model/src & mom pkgs:
734      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
735        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
736      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
737        just copy level Nr value to level Nr+1.
738    o doc:
739      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
740    o pkg/streamice:
741      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
742        SHELFICE.h: move array shelficemass to init_varia, initialise
743        from array shelficemassinit, which is set in init_fixed and
744        has option to be set from file; introduce array
745        shelficeMassDynTend array, set thru file in init_fixed
746      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
747        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
748        pkg/streamice
749      - shelfice_thermodynamics.F: call shelfice_step_icemass if
750        SHELFICEMassStepping = .true.
751      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
752    
753    checkpoint65h (2014/12/17)
754    o verification/global_ocean.90x40x15, global_ocean_ebm:
755      - update to generic controls.
756    o pkg/ctrl:
757      - ctrl_map_ini_genarr.F: test for igen>0
758      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
759      - move gentim2d part of ctrl_map_ini_genarr.F to
760        new separate routine : ctrl_map_ini_gentim2d.F
761      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
762        add time variable weights and cyclic controls (time mean,
763        seasonal cycle, etc) capabilities to gentim2d
764    o pkg/ecco:
765      - move reading of error, conversion to weights from
766        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
767    o global_oce_llc90, cs32:
768      - activte sbo.
769      - CTRL_SIZE.h : add maxCtrlProc.
770      - activate the new genctrl capabilities.
771      - update following reorganization of global_oce_input_fields.tar.gz  
772    o pkg/ctrl/ctrl_ad_diff.list:
773      - add missing ctrl_init_rec.f
774    o tools/OAD_support/keepOriginal:
775      - add ctrl_init_rec.F
776    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
777      - avoid recomputations of xx_gentim2d_dummy.
778    o momentum diagnostics:
779      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
780        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
781    o pkg/seaice/seaice_lsr.F:
782      - fix computation of BU/BV, make sure they are non-zero, only necessary
783        for cubed sphere exchanges and SEAICE_OLx/y>0.
784        This makes calling s/r fill_cs_corner_rl obsolete (removed).
785    o verification/global_ocean.cs32x15/input.seaice
786      - add test for strong implicit coupling and restricted addtive Schwarz
787        methods for LSR
788      - update results/output.seaice.txt
789    o verification/tutorial_global_oce_biogeo:
790      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
791        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
792        update output_adm,_oadm,_tlm.txt
793    o pkg/dic:
794      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
795      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
796        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
797    o verification/tutorial_global_oce_biogeo:
798      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
799        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
800        update output_adm,_oadm,_tlm.txt
801    o eesupp/src:
802      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
803        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
804    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
805      LSR (following Hutchings et al. 2004)
806      - introduce zetaZ as a global variable (requires adjustments in
807        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
808        in seaice_calc_viscosities.F
809      - new flag SEAICEuseStrImpCpl (default off)
810      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
811        momentum equations
812      - JFNK-solver (preconditioner) adjusted to allow using this method
813        (where it does not have any positive effect)
814    o pkg/seaice
815      - add overlap for restrictive additive Schwartz method also to LSR, but
816        turn it off by default (because it only seems to work for non-cubed
817        sphere/llc topologies)
818    o pkg/autodiff
819      - add extra exchanges in addummy_in_steppging also for mnc output
820    o pkg/seaice:
821      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
822        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
823    o pkg/obcs:
824      - add option to specify domain-connected piece Id along OB though files
825        (for now, only used to diagnose PhiVel; default =1 -> global correction)
826      - modify obcs_diag_balance.F to process each connected-part separately;
827        exclude OB where Id = 0 but keep the full divergence there (-> constant
828        Psi along this portion of OB and all inflow derived from grad(Phi))
829      - add example of OB-conect files in verification/so_box_biogeo/input.
830    o pkg/diagnostics:
831      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
832      a) use non zero matrix element across OB and solve for Phi 1 grid point
833         outside OB (i.e, where tracer OBCS are applied).
834      b) global imbalance of inFlow/outFlow across OB: instead of modifying
835         velocity across OB, spread it uniformly along the OB in the RHS.
836    
837    checkpoint65g (2014/11/19)
838    o pkg/diagnostcis:
839      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
840    o pkg/my82,pp81,kl10:
841      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
842        field diffKr as background diffusivity to set minimum diffusivity value.
843    o pkg/seaice:
844      - add new parameter SEAICEuseEVPrev (for revisited EVP by
845        Bouillon et al 2013)
846      - add SEAICE_evpAlpha/Beta to namelist
847      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
848        involve trivial re-ordering of divisions/multiplications that should not
849        have any effects, but ... they do change the results of lab_sea.hb87 so
850        that only 2 digits of agreement remain, in line with the general
851        instability/fragility of the evp-code. For now, I do not care and just
852        update the verification experiment
853    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
854      - remove xx_genarr2d_numsmooth etc
855      - use xx_genarr2d_preproc etc instead
856      - carry out smooth_correl2D at initialization stage rather than during
857        time stepping.
858      - get smoothOpNb from xx_gentim2d_preproc
859    o global_oce_cs32 :
860      - add test of generic ecco capabilities.
861    o pkg/exf/exf_getsurfacefluxes.F :
862      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
863    o pkg/ctrl,ecco :
864      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
865        is defined.
866    o pkg/seaice: add diagnostics for Delta (deformation parameter)
867    o model/src:
868      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
869        diffusivity (background) is specified but ignored.
870    o verification:
871      - in testreport, convert hostname to lower case for default output dir name
872    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
873    o pkg/dic: add modifications from Hajoon:
874      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
875      - light attenuation: add self-shading effect by climatological Chlorophyll
876        (read from file).
877    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
878        compiles when SEAICE_ALLOW_DYNAMICS is undefined
879    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
880        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
881        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
882        approach where CPP_OPTIONS.h includes an omnipotent
883        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
884    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
885        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
886    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
887        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
888        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
889    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
890      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
891      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
892      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
893      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
894    o pkg/ctrl,ecco,exf :
895      - remove variables associated with NON-generic costs,
896        unless ECCO_CTRL_DEPRECATED is defined.
897      - remove NON-generic NON-obcs controls,
898        unless ECCO_CTRL_DEPRECATED is defined.
899    o pkg/ctrl : added ctrl_local_params.h
900    o pkg/ecco : added ecco_local_params.h
901    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
902        experiments, which will progressively be removed once the
903        experiments are revised to use only generic controls/costs.
904    
905    checkpoint65f (2014/10/13)
906    o pkg/ctrl, ecco, seaice : minor changes in headers
907    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
908        cost function and control capabilities added since checkpoint65c.
909    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
910    o pkg/ecco: increase modularity and improve logic
911      - ecco_toolbox.F (new) : basic operations that are often used,
912        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
913        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
914      - cost_gencal.F (new) : determine filnames and records.
915      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
916      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
917        and exploit the above functions leading to more compact code.
918      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
919      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
920        using_ers, using_gfo, using_mdt is now only defined within gencost)
921    o pkg/ecco: extend generic cost capabilities
922      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
923        capabilities via gencost_preproc (+ _c,_i,_r related params),
924        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
925        gencost_outputlevel arguments to cost_generic
926      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
927        and active_read, making room for gencost_preproc to take effect.
928        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
929      - pkg/ecco/cost_generic.F :
930        compute and store misfit maks*(model-data) in localdif that is
931        then used in cost and for output, output misfit if outlev.GT.0
932      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
933        rather gencost_barfile for deciding whether to write barfile
934      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
935      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
936        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
937      - pkg/ecco/ecco_summary.F : report gencost variables
938      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
939    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
940    o pkg/ecco: internal re-organization
941      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
942        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
943        mv relevant variables definition from ecco_cost.h to ecco.h,
944        make sure gencost routines only include ecco.h)
945      - throughout : add missing CCP switches, rm unused variables,
946        and rm un-necessary CPP switches
947      - throughout gencost routines : replace modelstartdate with
948        gencost_startdate when needed
949      - cost_bp_read.F : use arguments, instead of common blocs
950        so that it can be used also by (new) cost_gencost_bpv4.F
951      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
952      - ecco_phys.F : compute etanFull
953      - ecco_readparms.F : rename using_topex as using_tpj, add
954        bpv4-grace to gencost list, initialize added parameters
955      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
956    
957    checkpoint65e (2014/09/28)
958    o pkg/obcs:
959      - replaced the just-added CPP options with run-time variables
960        (see pkg/obcs/OBCS_PARAMS.h for details)
961    o pkg/obcs:
962      - add additional CPP options for sponge boundary layers
963        (see pkg/obcs/OBCS_OPTIONS.h for details)
964    o pkg/atm_phys:
965      - implement simple (obliquity only, assuming circular planet orbit)
966        seasonal cycle for incoming insolation ; used when run-time parameter
967        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
968    o pkg/exf, pkg/ecco, pkg/ctrl:
969      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
970      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
971      - implement gentim2d for xx_tauu, xx_tauv
972    o pkg/ctrl, pkg/ecco :
973      - fix and complement the generic controls implementation
974    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
975        pkg/shelfice/shelfice_thermodynamics.F,
976        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
977        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
978      - add weight in CTRL_GET_GEN calls
979    o pkg/ctrl :
980      - ctrl_get_gen.F : add weight as input parameter, and apply
981        it directly rather than using smooth_correl2Dw (to be retired).
982      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
983    o pkg/ctrl :
984      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
985        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
986      - re-activate ctrl_summary (call in ctrl_init.F)
987    o pkg/ctrl/ctrl_cost_gen.F :
988      - fix CCP brackets, remove un-necessary myiter, mytime
989    o pkg/ecco, pkg/ctrl :
990      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
991      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
992      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
993      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
994    
995    checkpoint65d (2014/09/15)
996    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
997      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
998        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
999    o pkg/ctrl/ctrl_map_ini_genarr.F :
1000      - remove compilation failure
1001      - replace hard coded example
1002      - use ctrl_map_ini_gen2D, 3D
1003    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1004      - on/off switch based upon xx_genarr2d_weight,3d
1005    o src/packages_init_variables.F :
1006      - regroup pkg/estimation calls
1007      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1008        (moved to ctrl_init_variables)
1009    o cost/cost_init_varia.F :
1010      - remove ecco_cost_init_varia
1011        (moved to ecco_init_varia)
1012    o ctrl/ctrl_init_variables.F :
1013      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1014      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1015    o ctrl/ctrl_map_ini.F :
1016      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1017        (moved to ctrl_init_variables)
1018    o ctrl/ctrl_map_ini_ecco.F :
1019      - remove ECCO_PHYS (mv to ecco_init_varia)
1020      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1021    o ecco/ecco_ad_diff.list :
1022      - add ecco_init_varia.f
1023    o ecco/ecco_init_varia.F
1024      - new routine
1025    o pkg/streamice:
1026      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1027        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1028      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1029    o pkg/generic_advdiff:
1030      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1031    o pkg/exf:
1032      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1033         xxg_precip capability
1034      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1035    o pkg/ctrl:
1036      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1037    o model/src/load_fields_driver.F :
1038      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1039        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1040    o OpenAD verification experiments:
1041      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1042        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1043        for now, only in pkgs used in OpenAD verification experiments.
1044      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1045        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1046        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1047        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1048    o OpenAD verification tests:
1049      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1050      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1051        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1052      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1053        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1054    o model/src & generic_advdiff:
1055      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1056        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1057        dynamics requires valid tracer forcing only over tile interior but, for
1058        some diagnostics, may need to extend it over 1 point in tile halo region.
1059      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1060        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1061        setting in temp/salt/ptracer_integrate.F
1062    o pkg/dic:
1063      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1064        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1065        in gchem_forcing_sep.F
1066    o pkg/autodiff & obcs:
1067      - add storage of current OB values for U & V (was already done for T & S).
1068    
1069    checkpoint65c (2014/08/30)
1070    o pkg/dic:
1071      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1072        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1073        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1074    o verification:
1075      - new experiment testing OBCS and DIC pkgs, using params & output from
1076        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1077        passage: take OBCS from the last year of a 2 yrs simulation and initial
1078        conditions from t=1.yr while keeping the same forcing.
1079    o model/src:
1080      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1081        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1082    o pkg/diagnostics (Stats-Diags):
1083      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1084        a) refine region where stats are computed, excluding where arrhFac=0 ;
1085        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1086        c) extend regional stats over the region edges (for U or V pt location).
1087    o pkg/gchem:
1088      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1089        pkg/dic is currently changing/updating ptracers values beyond the OB).
1090    o verification (hs94):
1091      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1092        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1093        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1094        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1095    o pkg/ptracers:
1096      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1097        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1098      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1099        with AB-2 code (so that it get tested).
1100    o model/src:
1101      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1102        with AB-2 code (previously only available with AB-3 code).
1103        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1104        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1105        there, by calling CYCLE_AB_TRACER).
1106    o pkg/generic_advdiff:
1107      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1108        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1109        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1110        S/R temp/salt/ptracers_integrate.F
1111    o model/src & pkg/ptracers:
1112      - remove common block variables gT,gS (in DYNVARS.h), except when
1113         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1114      - remove common block variable gPtr.
1115    o model/src & pkgs:
1116      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1117         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1118         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1119         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1120      + change accordingly all calling S/R.
1121      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1122        in S/R temp/salt/ptracers_integrate.F
1123    o pkg/seaice:
1124      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1125        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1126      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1127        in seaice_lsr
1128      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1129        in s/r seaice_lsr_calc_coeffs
1130    o pkg/mdsio:
1131      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1132        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1133        too long (e.g., > MAX_LEN_FNAM/2 )
1134    
1135    checkpoint65b (2014/08/12)
1136    o pkg/matrix:
1137      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1138    o model/src:
1139      - fix initialisation of geothermalFile; compile geothermal-flux code in
1140        natl_box verification experiment.
1141    o model/src & pkg/down_slope:
1142      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1143      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1144        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1145        results at machine truncation level: update output of experiments
1146        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1147    o pkg/diagnostics (Stats-Diags):
1148      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1149        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1150        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1151        times (but Min,Max and StD are still wrong).
1152    o model/src:
1153      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1154        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1155    o model/src:
1156      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1157        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1158        arrays are already updated while adjustments (filters, conv.adjustment) are
1159        still applied later, in S/R TRACERS_CORRECTION_STEP.
1160    o model/src:
1161      - store in common bloc array "rhoInSitu" the virtual potential temperature
1162        anomaly that is used to compute geopotential: this make the atmos code
1163        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1164    o pkg/seaice/seaice_lsr.F
1165      - rename integer variable ilcall to ipass (that's what it is called
1166        in the residual diagnostics
1167      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1168        default) for improved non-linear convergence of the first few steps
1169      - adjust a few comments and add new ones to explain some of the store
1170        directives
1171    o pkg/generic_advdiff (& ptracers):
1172      - re-work the code to check for valid advection scheme and for minimum
1173        size of overlap (now stored in local common bloc in gad_advscheme.F)
1174    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1175      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1176      - add an auxilliary variable "bet" and fix store directives and keys in
1177        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1178        less exact gradients in my tests); but there are still
1179        recomputation warning (although gradients are sort of OK), when
1180        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1181        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1182      - update verification experiments lab_sea.
1183      - change some comments in S/R seaice_calc_viscosities
1184    o model/src:
1185      - if staggerTimeStep=T, always apply exchange to velocity field in
1186        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1187        (independent of using multi-dim advection or not); no effect on FWD run
1188        but affects AD results (at machine truncation level): update output of
1189        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1190        and isomip (oad: 12.d).
1191    o pkg/generic_advdiff:
1192      - stop if doAB_onGtGs is set to FALSE but ignored
1193      - refine warning related to stability of tracer time-stepping
1194        regarding internal wave dynamics.
1195      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1196        on staggerTimeStep & implicitIntGravWave (will now get a warning
1197        if potentially unstable).
1198    o pkg/kl10:
1199      - add new pkg "kl10" for mixing due to internal wave breaking, from
1200        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1201        (contribution from Jody Klymak), tested in verification experiment
1202        verification/internal_wave/input.kl10/
1203    o isomip experiment:
1204      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1205        (input.htd) and update the output.
1206    o cd_code experiments:
1207      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1208        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1209        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1210        update the corresponding output.
1211    o pkg/seaice:
1212      - reduce the number of include files and store directives in
1213        S/R seaice_lsr_tridiagu/v
1214      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1215        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1216        get rid off one store directive (a TAF bug?)
1217      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1218        S/R seaice_lsr_tridiagv to change the loop range for consistency
1219      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1220      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1221        S/R seaice_lsr_tridiagu/v (requires update of
1222        offline_exf_seaice/input.dyn_jfnk)
1223    
1224    checkpoint65a (2014/07/27)
1225    o model/src:
1226      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1227        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1228        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1229        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1230    o model/src:
1231      - collect momentum forcing tendency into local 2-D array (passed as argument
1232        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1233        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1234        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1235      - collect T & S forcing tendency into local 2-D array (passed as argument to
1236        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1237        affects results at machine truncation level (e.g., ocean: if using
1238        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1239        correction due to vertical advection).
1240      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1241        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1242        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1243        obcs_ctrl (ad & fwd grd @ 12 & 7).
1244    o pkg/ptracers & diagnostics:
1245      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1246        title (to avoid some unexpected truncation); sort out ptracers diags units.
1247      - collect ptracer forcing tendency into local 2-D array (passed as argument
1248        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1249    
1250    checkpoint65 (2014/07/18)
1251    o pkg/fizhi:
1252      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1253        affects results at machine truncation level. Update output of experiments
1254        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1255    o pkg/seaice: more clean up
1256      - rename TAF common block tapes to be more consistent and remove
1257        unnecessary duplicates
1258      - add store directives to remove more recomputations, but use smaller
1259        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1260        The idea behind this flag is to reduce the memory footprint when the
1261        adjoint of the LSR is not required. As of now, defining the flag
1262        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1263        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1264        For experiment offline_exf_seaice, this means on a linux box with gfortran
1265        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1266        this experiment):
1267        > size mitgcmuv_ad
1268        text    data        bss     dec        hex
1269        5100659 1216  220458952  225560827  d71c8fb
1270        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1271        but only a moderate increase of 36% for global_ocean.cs32x15:
1272        text    data        bss     dec        hex
1273        6695027 1648 1014578664 1021275339 3cdf6ccb
1274        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1275      - note: there are still recomputations in global_ocean.cs32x15 and
1276        offline_exf_seaice and the gradient agreement changes (gets a
1277        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1278      - in general, the AD gradients still are wrong
1279    o OpenAD
1280      - clean up code_oad/ directories somewhat by moving files
1281        dontCompile, dontTransform, keepOriginal to OAD_support/
1282    o model/src:
1283      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1284        (not currently tested): add dissipation terms before NLFS rescaling of
1285        tendencies (previously done after).
1286    o pkg/diagnostics:
1287      - write stats-diags in ascii file with more digits (same as in monitor).
1288    o pkg/down_slope:
1289      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1290        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1291    o model/src:
1292      - new file "apply_forcing.F" containing all the code previously in
1293        external_forcing.F, but with new argument list: pass, as new argument,
1294        the current level tendency array to update (instead of a direct update
1295        of the common bloc array). Change the corresponding calls.
1296      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1297        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1298    o pkg/seaice/seaice_lsr, a little bit of clean up
1299      - rearrange some code blocks, so that now all calculations for
1300        setting up the right-hand-sides done within one single block
1301        (I find that easier to read and understand)
1302      - rearrange freedrift-code to reduce the number of ifdefs
1303      - adjust some indentations and comments
1304    
1305    checkpoint64z (2014/07/10)
1306    o model/src and several pkgs:
1307      - change argument list of all S/R called from external_forcing.F and
1308        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1309        to pass, as argument, the current level tendency array to update
1310        (instead of a direct update of the common bloc array).
1311      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1312      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1313    o pkg/seaice/seaice_lsr.F
1314      - always initialize local arrays in seaice_lsr_tridiagu/v
1315      - add more local tapes to seaice_lsr_tridiagu/v
1316      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1317        keep it in bi/bj loop; this seems to be essential
1318      - gradients are still wrong but only by 4-7 orders of magnitude
1319        instead of 15 orders of magnitude, lab_sea improves a little
1320    o pkg/seaice
1321      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1322        generates unnecessary code in seaice_lsr_ad
1323      - add more store directives in seaice_lsr to avoid unnecessary code
1324        in seaice_lsr_ad
1325      - exclude some residual computations in seaice_lsr when
1326        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1327        in seaice_lsr_ad
1328      - add more storing, a new tape (model/src/the_main_loop.F) and
1329        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1330        and klockey should be checked by a specialist)
1331      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1332        and update lab_sea after previous changes in pkg/seaice below
1333    o pkg/autodiff:
1334      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1335        viscFacInAd : run time parameters allowing for adjoint switches
1336        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1337    o pkg/ecco:
1338      - introduce cost_gencost_boxmean.F that computes a box mean
1339        temperature (for use in adjoint sensitivity studies).
1340    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1341    o pkg/mom_common/mom_calc_visc.F:
1342      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1343    o pkg/seaice/seaice_summary.F:
1344      - statement for SEAICEadjMODE now in autodiff_readparms.F
1345    o pkg/seaice:
1346      - remove some store directives and add new ones in an effort to get
1347        finally rid off the recomputation warnings. This is successful
1348        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1349        defined (i.e. no extensive recomputation warnings left), but there
1350        are still too many recomputations on the solver iteration level
1351      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1352      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1353        SEAICE_SIZE.h
1354      - add a store directive in S/R seaice_calc_viscosities
1355    o pkg/seaice (ITD code):
1356      - fix definition of Hlimit for multi-threaded case
1357      - use double precision arithmetic to compute Hlimit: this affects results;
1358        update output of experiment seaice_itd.
1359    o replace content of verification/seaice_itd
1360      - instead of a 1D column use the configuration of offline_exf_seaice
1361        to test the ice thickness distribution code with ridging
1362      - this is a first shot at this experiment
1363      - change of some defaults of ridging parameters SEAICEhStar (from
1364        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1365        and lot of new comments.
1366    
1367    checkpoint64y (2014/06/20)
1368    o pkg/seaice/seaice_reg_ridge.F:
1369      - modify the regularization of very small volumes of ice; only check
1370        total volume HEFF, and do not apply correction to individual ice
1371        classes because that leads to funny patterns in the heat and fw-fluxes
1372        into the ocean. Adjust seaice_itd/results/output.txt
1373      - replace nITD by SEAICE_multDim in loop-ranges
1374    o pkg/exf:
1375      - add code to process the case field period = -12. with UV interpolation.
1376      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1377        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1378    o verification/global_with_exf:
1379      - switch all fields period to -12. (was previously untested) in input/data.exf
1380        (but keep secondary test ".yearly" unchanged); update the reference output.
1381    o pkg/cal:
1382      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1383    o pkg/exf:
1384      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1385        to replace logical switch "exf_verbose"
1386      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1387    o pkg/sbo:
1388      - update from Katherine Quinn: evaluate mass directly from density and SSH
1389        (budget using Finite Volume method) instead of from bottom pressure.
1390      - allow testreport to collect few selected SBO output ; tested in exp.
1391        global_ocean.90x40x15 (after updating the results, to include SBO output).
1392      - fix some multi-threading issues (in output part).
1393    o model/src & most packages:
1394      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1395      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1396        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1397        "data.{pkg}" exist ; and leave the S/R (return) just after.
1398      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1399        + call LAND_READPARMS from packages_readparms.F
1400    o pkg/seaice:
1401      - remove code that resets useThSice in S/R seaice_readparms and
1402        replace it by a warning in S/R seaice_check
1403      - remove parameter MULTDIM, replace with nITD and runtime
1404        parameter SEAICE_multDim (still hard-wired to nITD if
1405        SEAICE_ITD is defined)
1406    
1407    checkpoint64x (2014/05/24)
1408    o verification/lab_sea:
1409      - update adjoint and TLM output following changes to pkg/salt_plume
1410      - un-do the update after putting back local recip_Cp in few places.
1411    o pkg/salt_plume: modifications by An Nguyen:
1412      - add capability to do brine rejection (salt-plume) as function of
1413        volume+tracers (instead of only salinity tracer).
1414      - conserve volume by exchanging volume from each kLev to above to
1415        accommodate in-coming brine volume
1416      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1417      - switch KPP surf buoyancy due to brine forcing to 3-d
1418        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1419      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1420      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1421        in East/West Arctic.
1422    o pkg/sbo:
1423      - incorporate modifications from Katherine Quinn to enable the use of sbo
1424        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1425        output for future testreport verification (unfinished).
1426    o pkg/atm_phys:
1427      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1428        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1429        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1430    o pkg/seaice
1431      seaice_calc_ice_strength.F: modify expression to avoid divisions
1432        (affects truncation)
1433      seaice_do_ridging.F: clean up the insectarium
1434      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1435      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1436      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1437      - add some debugging information and error messages (warnings)
1438    o model/src: modifications relatd to atmosphere p*:
1439      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1440      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1441        of vertical profile tRef in geopotential background and anomaly.
1442      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1443        and pkg/atm_phys.
1444      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1445        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1446    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1447    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1448        not used right now, but can be used in BGC packages to fix conservation.
1449    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1450        other packages too.
1451    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1452        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1453    o model/src:
1454      - since we have several heat capacity (even in model/src), define "recip_Cp"
1455        as local variable (no longer in common block) to avoid any confusion.
1456      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1457    o pkg/exf:
1458      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1459        air density as function of air Temp, Humidity and atm pressure.
1460    
1461    checkpoint64w (2014/05/02)
1462    o verification:
1463      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1464        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1465        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1466        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1467        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1468    o model/src: for atmosphere in p* coords:
1469      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1470      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1471        but not yet activated.
1472    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1473      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1474      - this changes the results (but not for any verification experiment, because
1475        none tests this), but avoids having an extra field in the restart files
1476    o pkg/seaice: remove global variable TICE (not needed)
1477      - replace by TICES or local variable where necessary (cost_seaice_test,
1478        seaice_diagnostics_state)
1479      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1480      - use specific read/write routines for reading and writing individual leves
1481        of a multilevel field
1482    o pkg/ctrl & model/inc:
1483      - move additional anomaly fields of control vars (related to options:
1484         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1485        from DYNVARS.h into new header file: CTRL_FIELDS.h
1486    o pkg/seaice: some small modifications to the ridging code
1487      - make fw2ObyRidge a global variable and add the freshwater flux to
1488        seaice_growth
1489      - pass actual thickness from seaice_prepare_ridging, so that it is
1490        computed only in one place and compute it in the same way as in
1491        seaice_growth
1492      - initialise more fields in seaice_do_ridging that where cause floating
1493        point exceptions over land
1494  o pkg/seaice: preparations for ridging code and first real ridging code  o pkg/seaice: preparations for ridging code and first real ridging code
1495    - move most of "PART 1" of S/R seaice_growth into a new and separate    - move most of "PART 1" of S/R seaice_growth into a new and separate
1496      S/R seaice_reg_ridge that will both regularize the state variable after      S/R seaice_reg_ridge that will both regularize the state variable after
1497      advection call the actual ridging routine;      advection call the actual ridging routine;
1498    - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,    - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1499      d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;      d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1500    - remove ridging code from seaice_advdiff    - remove ridging code from seaice_advdiff
1501    - clean up remaining part 1 of seaice_growth in an attempt to make it    - clean up remaining part 1 of seaice_growth in an attempt to make it
1502      more readable (this is probably subjective)      more readable (this is probably subjective)
1503    - call seaice_itd_redist once in the initialisation phase to have the initial    - call seaice_itd_redist once in the initialisation phase to have the initial
1504      conditions in the correct category      conditions in the correct category

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