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revision 1.2170 by heimbach, Sun Jul 5 02:06:23 2015 UTC revision 1.2267 by jmc, Thu Sep 15 00:36:43 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/icefront & pkg/exf:
8      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
9        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
10    o pkg/exf:
11      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
12        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
13        (add suffix "_out" instead of a prefix); keep same record number as in
14        input file but always write record 1 first (to avoid a STOP in I/O S/R).
15        Change output file content by writing interpolated field before applying
16        land-sea mask (helpful for debug).
17      - 2 compon. vector interpolation with rotation: apply scaling factor on
18        each compon. (Eastward and Northward) just before rotation.
19    o pkg/bling:
20      - Cleaned package. Removed not needed code and comments.
21      - adjoint example now works
22        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
23    o pkg/ptracers:
24      - add Bruno Deremble's code to complete the linear surface correction
25        for tracer conservation;
26      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
27    
28    checkpoint65y (2016/07/29)
29    o pkg/debug (stats):
30      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
31        proc/thread mapping);
32      - fix Min & Max for case where 1 thread has only empty tiles;
33      - use RL variable to count number of wet grid points (with big domain,
34        can be too large to fit into integer*4).
35    o pkg/monitor:
36      - use RL variable to count number of wet grid points (but used only for del2)
37      - add new routine to compute Advective CFL within tracer time-stepping with
38        writing delayed until next monitor output.
39    o pkg/obcs:
40      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
41    o pkg/cal:
42      - calandar-dump: treat case myTime < timePhase in the same way as in
43        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
44    o pkg/dic & seaice:
45      - fix compilation of ocean component for coupled atm+ocn model with
46        seaice dynamics & dic.
47    
48    checkpoint65x (2016/06/11)
49    o add a license text file in main MITgcm tree.
50    o added pkg/bling:
51      - intermediate complexity biogeochemical model
52      - see bling_description.txt for details
53      - verification experiment is global_oce_biogeo_bling (for now, in
54        Contrib/verification_other/); tested daily on baudelaire with gfortran.
55      - add entry point in pkg/gchem for new pkg "bling".
56    o pkg/seaice: fix tensile stength computation
57      - replace global field tensileStrength by tensileStrFac
58      - tensileStrFac can be computed once in S/R seaice_init_varia
59      - fortunately that does not affect any verification results
60    
61    checkpoint65w (2016/05/12)
62    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
63         with ECCO_CTRL_DEPRECATED defined
64    o verification/global_ocean.cs32x15:
65      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
66        with "selectNHfreeSurf=1".
67    o model/src (non-hydrostatic free-surface):
68      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
69        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
70      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
71        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
72        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
73        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
74      - Update output (changes at machine truncation level) of verification exp:
75        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
76        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
77    o pkg/seaice: ITD code
78      - fix picking up from a single category model by initialising
79        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
80      - split a long warning message in seaice_check_pickup.F into two lines,
81        because NEC SX-ACE cannot deal with the long line.
82    o model/src:
83      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
84    o pkg/seaice:
85      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
86    o pkg/seaice:
87      - add basal stress as parameterisation for grounding ice
88        following Lemieux et al. (2015)
89      - turn on by setting new parameter SEAICEbasalDragK2 to a value
90        larger than 0. Lemieux et al. (2015) recommend 15.
91      - The adjoint complains with extra recomputations so there is also a
92        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
93        order to postpone the problem
94      - compile the new code in lab_sea
95    o verification/halfpipe_streamice:
96      - update both TAF and OpenAD adm output (machine truncation differences)
97    
98    checkpoint65v (2016/04/08)
99    o verification/advect_xz:
100      - increase overlap size from 3 to 4 and add new secondary test for PQM
101        advection scheme (with mono & wino limiter).
102      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
103    o model/src:
104      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
105        added phi0Ref) to set vertical axis origin and phiRef origin;
106        keep Ro_SeaLevel for backward compatibility (with a warning).
107       According to coordinate and fluid type:
108        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
109        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
110        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
111        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
112      - remove Ro_SeaLevel from ATM experiment parameter files;
113      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
114        complement; update output.txt (changes at machine truncation level).
115    o pkg/seaice/seaice_evp.F
116      - simplify computation of deltaZ and zetaZ to simple averaging following
117        Bouillon et al. (2013). This removes a lot of code, but also changes
118        verification experiment lab_sea.hb87 -> updated
119    
120    checkpoint65u (2016/03/14)
121    o pkg/generic_advdiff:
122      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
123        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
124        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
125        testing and not for actual use.
126    o model/src:
127      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
128        origin r = rF(1);
129      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
130        in EOS for height coordinate: enable to include NH Pressure or to use
131        more accurate pressure vertical profile; options not linked to EOS type
132        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
133      - start to implement variable gravity (along vertical): for now, only with
134        z-coords (not even z*).
135      - add Ideal Gas equation of state for height coordinate.
136      - update OpenAD output (affected at machine truncation level) of exp:
137        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
138    o pkg/exf:
139      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
140        of exf interpolation (before any rescaling, rotation or interpolation
141        to velocity point) for each field that gets loaded from file. This option
142        identically mimics the input file organization (e.g. record numbers in year
143        by year input files) besides the change in horizontal grid.
144      - add rotateStressOnAgrid run-time switch so that wind stress fields
145        can be provided on the A-grid in zonal/meridional direction and
146        rotated on the fly. This only applies to the case when the exf
147        interpolation is off and rotateStressOnAgrid is false by default.
148    o model/src:
149      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
150        it's also used with pkg/atm_phys) and add few more parameters (but still
151        inactive, src code yet to come)
152    
153    checkpoint65t (2016/02/10)
154    o pkg/atm_phys:
155      - from Ruth Geen: add optical depth dependence on CO2 concentration.
156    o model/src:
157      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
158        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
159        Update output of exp. deep_anelastic (changes at truncation level).
160    o tools:
161      - add a hack in "remove_comments_sed" (used only with TAF) for recent
162        version of OpenMPI (shipped with FC.23): comment out the new header
163        file "mpif-sizeof.h" which causes problems to TAF.
164    o pkg/seaice:
165      - change the termination criterion so that maxits (SEAICElinearIterMax)
166        has an effect
167      - unify iteration parameters for implicit solvers (JFNK and Picard)
168        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
169        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
170        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
171        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
172        SEAICEnonLinTol     replaces JFNKgamma_nonlin
173      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
174      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
175        use with SEAICEuseKrylov
176    o pkg/seaice/seaice_lsr.F
177        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
178        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
179        an effect.
180    o pkg/seaice: add two new parameters
181      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
182        parameter is not in any namelist)
183      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
184        a preconditioner for the non-linear Newton iteration of the JFNK
185        solver
186    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
187      affects some experiments at truncation level:
188      - global_ocean.cs32x15.icedyn (11 digits),
189      - global_ocean.cs32x15.seaice (11 digits),
190      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
191      - also update global_ocean.cs32x15 adjoint and tangent-linear results
192    o pkg/salt_plume & pkg/thsice:
193      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
194        connect salt_plume flux to ATM-OCN coupling pkgs interface:
195       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
196         export to coupler interface) even without compiling pkg/salt_plume ;
197       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
198         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
199    o pkg/dic:
200      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
201        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
202        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
203      - move also update with values from ATM-OCN Coupler in the same new S/R
204        (previously done in ocn_apply_import.F).
205    o tools/adjoint_options:
206      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
207        has been changed on Jan 14, 2016.
208    o pkg/ggl90:
209      - add alternative discretisation of vertical shear (off by default), to
210        compute the mean (@ grid-cell center) of vertical shear compon instead of
211        vertical shear of mean flow (@ grid-cell center).
212      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
213        results on adjacent faces of cubed-sphere grids; this fix the restart.
214    o pkg/atm_compon_interf:
215      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
216        pass last value, stored directly before export to CPL ;
217        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
218      - remove atmSLPr from pickup files (no longer needed for restart)
219    
220    checkpoint65s (2016/01/13)
221    o eesupp & genmake2:
222       - first check for Function ETIME and, if it fails, then check for subroutine
223         ETIME and consistent output; use the appropriate version in timers.F
224    o model/src:
225      - to check restart test, add option to apply EXCH to U,V earlier, just before
226        integr_continuity; turned off by default.
227    o pkg/dic:
228      - remove CPP option USE_ATMOSCO2 (not needed)
229    o tools/tst_2+2:
230      - try to ignore difference between +0 and -0 in binary file, causing test
231        to fail for no good reason.
232    o eesupp & genmake2:
233      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
234        but also check (in genmake2) that test runs and returns meaningful results.
235    o coupler pkgs:
236      Finish implementation of optionally-exchanged variable switches (started on
237       Nov 12) with addition of few more exchanged fields, including 2-way exchange
238       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
239       advection in OCN component; this requires sequential coupling.
240      coupler (pkg/atm_ocn_coupler):
241      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
242        routines (useful for debug).
243      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
244         flux, DIC fields) if corresponding switch is ON.
245      - add option to export RunOff to OCN (to use for DIC river input)
246      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
247      components (pkg/atm_ & ocn_compon_interf):
248      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
249        optionally exchanged fields; add a check & stop in cpl_readparms.F.
250        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
251        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
252      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
253        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
254      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
255      - hold in common block coupler optionally-exchanged variable switch
256        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
257      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
258        this is intended to replace the OCN cplFldtave.* output files (not updated
259        to contain new additional exchanged fields).
260    o pkg/dic:
261      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
262    o pkg/thsice:
263      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
264        and writing of thsice pickup files.
265    o pkg/atm_compon_interf:
266      - move all field individual export-call out of cpl_export_import_data.F
267        into new S/R ATM_EXPORT_FIELDS
268    o pkg/atm_compon_interf:
269      - store state variables (for now, only thSIce fields) just before beeing
270        exported (in cpl_export_import_data.F, like on ocean side) instead of from
271        atm_store_my_data.F like all exported fluxes.
272      - new version of pickup_cpl: write field names into meta file and read meta
273        file to find field postion in pickup. Also only write/read fields meeded for
274        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
275    o pkg/dic:
276      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
277    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
278        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
279        value can be from domain [0,1] to average between the two methods
280    o pkg/atm_phys:
281      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
282        hold fixed in time).
283    
284    checkpoint65r (2015/12/21)
285    o pkg/seaice:
286        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
287        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
288    o pkg/seaice:
289      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
290        when SEAICEscaleSurfStress=.TRUE.,
291      - apply areaW and areaS in S/R seaice_calc_lhs
292    o pkg/atm_phys:
293      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
294        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
295        for individual contribution (convection, LSC cond, radiation)
296      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
297        information); activated with: solar_exponent=0. and wv_exponent=-1.
298    o pkg/ggl90:
299      - within IDEMIX add upper limit for horizontal group velocity to
300        avoid instability problems in the explicit horizontal diffusion term for
301        long time steps or high resolution
302    o pkg/diagnostics:
303      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
304        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
305    o testreport:
306      - remove "-v" (verbose option) in default mpirun command.
307    o pkg/seaice/seaice_growth:
308      - catch potential division by zero in ITD code, does not change
309        verification results
310    o pkg/ecco:
311      - retire old codes to the Attic. The calls to retired functions are
312        left in a commented form in case they ever need to be re-activated.
313      - ecco_check.F: issue warning if any old CPP option is
314        defined that corresponds to retired codes -- then stop.
315    o pkg/atm_compon_interf:
316      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
317        coupler: use last time-step value instead of average over cplSendFrq_iter
318        time-step, similar to what is done for seaIceMass.
319        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
320    o eesupp & genmake2:
321      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
322        <= remove until a fix is found for some ifort version on ia32 machine.
323    o pkg/seaice/seaice_evp:
324      - refine residual computation
325    
326    checkpoint65q (2015/11/18)
327    o pkg/seaice/seaice_evp:
328      - fix residual computations so that they no longer affect the actual
329        simulation code
330      - fix seaice_readparams to be able to actually set new parameters
331        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
332    o model/src:
333      - fix wrong truncation (single prec) from "FLOAT" function in expressions
334        like: deltaT*FLOAT(myIter) when myIter is large:
335         a) replaced by DFLOAT (if not seen by TAF);
336         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
337    o pkg/aim_v23:
338      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
339        when pickupSuff is set ; do write rolling pickups + at the end of the run.
340    o pkg/atm_ocn_coupler + ocn_compon_interf:
341      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
342        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
343        add corresponding call in DO_OCEANIC_PHYS.
344    o coupler pkgs:
345      Start a new way to set-up optionally-exchanged variables (previously, only
346       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
347       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
348       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
349       compononent param default can be set accordingly).
350      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
351       but rather applies to a group a fields (going both ways like for DIC)
352       and corresponds to an option of coupling config.
353      coupler (pkg/atm_ocn_coupler):
354      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
355        and read namelist directly (without eessup S/R calls) instead of
356        in the very un-flexible old way, 1 param per line, in fixed order;
357      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
358        cleanly in CPL_CHECK_CPLCONFIG
359      - add new coupling-exchange selectors (some not yet active) including
360        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
361                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
362      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
363        component ; called directly from coupler.F, after comp. registrations;
364      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
365         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
366          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
367      components (pkg/atm_ & ocn_compon_interf):
368      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
369        CPP header file in all pkg source files.
370      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
371        ATM/OCN_CHECK_CPLCONFIG;
372      - add error-counter to track errors (e.g., in "data.cpl") and to stop
373        cleanly in ATM/OCN_CHECK_CPLCONFIG;
374      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
375        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
376        before PACKAGES_READPARMS;
377      verification/cpl_aim+ocn/:
378      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
379        "data.cpl" for coupler (in input_cpl).
380    o eesupp/inc:
381      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
382        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
383        to always cumulate tile local-sum in the same order (still uses
384        MPI_Allreduce like standard code).
385      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
386        that are now identical to standard version (in eesupp/inc).
387    o pkg/shelfice:
388      - add SHELFICETransCoeffTFile for initializing spatially varying
389        heat and salt transfer coefficients
390    o pkg/atm_compon_interf & ocn_compon_interf:
391      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
392        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
393      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
394    o pkg/atm_ocn_coupler:
395      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
396    o pkg/rbcs:
397      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
398        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
399      - add a short report (to STDOUT) about RBCS-mask settings.
400    
401    checkpoint65p (2015/10/23)
402    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
403        there is no adjoint test for EVP, we don't know what it does to the adjoint
404        solution, but at least there are no more recomputation warnings left
405    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
406        a chance of giving the same results as a fully converged VP (JFNK) solver
407    o tools/adjoint_options/adjoint_diva:
408      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
409    o pkg/streamice:
410      - spotted bug in streamice_driving_stress using dyG where should have been dxG
411    o pkg/exf:
412      - remove STOP statement that prevented to use wind or (wind-)stress
413        interpolation for constant-in-time forcing fields (wind/stress period = 0).
414    o pkg/seaice:
415      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
416        5 additionals 2D fields and 6 new store directives
417      - change logic in seaice_readparms.F: EVP code can now be turned on in
418        various ways, setting SEAICE_deltaTev is no longer required,
419        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
420        or SEAICEaEVPcoeff
421    o pkg/shelfice/shelfice_thermodynamics.F
422      - redefining uLoc/vLoc to u/v, instead of 2u/v
423    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
424      - this is an intermediate state of a truely converging EVP that has
425        the potential of outperforming implicit VP methods, I do not recommend
426        using it yet.
427      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
428        and all parameters are hardwired
429      - for convergence it still requires very smooth regularisations, that means,
430        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
431        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
432        specific averaging appears to be required, still subject to tuning
433      - still needs cleaning and I need to turn parameter into runtime parameters
434      - add code to compute and print residuals of iteration, compile with
435        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
436    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
437      that entered with r1.54 on Sep04, 2015, -> update results
438    
439    checkpoint65o (2015/09/14)
440    o pkg/mom_vecinv & mom_common:
441      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
442        called from there.
443      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
444        allows to use Vector-Invariant form in deep atmos and anelastic formulation
445    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
446      and Koenig-Beatty+Holland (2012)
447      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
448      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
449      - requires an extra input argument for S/R seaice_calc_viscosities
450      - tensileStrength's depth dependence is different from Itkin et al. (2015)
451        (to be changed and played with, for now exponential)
452    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
453      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
454        by AREA according to Connelly et al. (2004), JPO.
455      - For EVP and the LSR solver, the implicit part of the drag term is
456        the only non-zero term in the denominator when there is no ice (which
457        prevented running the model with zero ice-ocean drag). If
458        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
459        (or zero main diagonals BU/BV) which need to be caught. A practical
460        consequence is that for open water, the momentum equation reduce
461        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
462        they happen to be zero, often leading to a non-zero solution over
463        open water.
464    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
465        efficient EVP method.
466      - introduce area-weighted averages for e12 (analogously to
467        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
468        remain, but also changing the order of terms in the previous average
469        changed the results as much) -> update experiment
470      - add SEAICE_DELTA_SMOOTHREG code
471      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
472        TEM-code
473      - adjust loop bounds so that only required fields are computed
474      - add new averaging code for zetaZ/deltaZ (again similar to
475        seaice_calc_viscosities.F), inactive by default for now (will change
476        results again), but will replace old code eventually
477    o eesupp/src:
478      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
479        to always cumulate tile local-sum in the same order
480        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
481        Still uses MPI_Allreduce (like standard code) but on array of tiles
482        and should be faster than GLOBAL_SUM_SEND_RECV code.
483      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
484        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
485      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
486         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
487         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
488         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
489         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
490    
491    checkpoint65n (2015/07/29)
492    o pkg/thsice:
493      - add a warning when used with pkg/aim but without updating SST
494        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
495    o pkg/offline:
496      - change where Offline-Fields are loaded, from load_fields_driver.F to
497        directly within FORWARD_STEP, just after updating iter number and time;
498      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
499        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
500       These changes allow:
501        a) to recover exactly on-line results using deltaToffline=deltaTClock,
502        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
503        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
504        time-step, both with GM & KPP files and with recomputing these fields;
505        b) no needs to switch on staggerTimeStep anymore;
506        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
507      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
508    o pkg/offline:
509      - change (rarely used) offset-iteration parameter to an offset time (in s):
510        can easily recover previous offset-iter effect by setting offset-time
511        (offlineTimeOffset) to offset-iter x deltaToffline;
512      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
513        in KPP as part of surface buoyancy forcing) in offline run.
514      - fix ptracers KPP non-local term in the case where KPP is re-computed.
515  o OpenAD  o OpenAD
516   - Adding preliminary ggl90 test to OpenAD verification.    - Adding preliminary ggl90 test to OpenAD verification.
517     Config. with ggl90 currently diverges after 64 time steps      Config. with ggl90 currently diverges after 64 time steps
518     so will need more work to become more stable      so will need more work to become more stable
519   - Adding preliminary kpp test to OpenAD verification.    - Adding preliminary kpp test to OpenAD verification.
520     required small tweakes in kpp_routines.F      required small tweakes in kpp_routines.F
521   - Merge and update from Krishna Narayanan's contrib area:    - Merge and update from Krishna Narayanan's contrib area:
522     * Add one variable for preliminary OpenAD DIVA      * Add one variable for preliminary OpenAD DIVA
523     * Add replacement time-stepping for OpenAD DIVA      * Add replacement time-stepping for OpenAD DIVA
524     * genmake2 flag -diva (but only for OpenAD; preliminary)      * genmake2 flag -diva (but only for OpenAD; preliminary)
525     * required modifs for OAD_support      * required modifs for OAD_support
526     successful preliminary test for tutorial_global_oce_biogeo/      successful preliminary test for tutorial_global_oce_biogeo/
527    o pkg/seaice:
528      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
529      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
530        delta with a smooth function in s/r seaice_calc_viscosity
531        (no effect on EVP)
532      - rename local suffix "sqr" into "sq" for more consistent variable names
533  o pkg/seaice:  o pkg/seaice:
534   - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr      add new parameter SEAICE_deltaMin that is used ***only***
535   - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising      for regularizing Delta (and nothing else, like the parameter
536     delta with a smooth function in s/r seaice_calc_viscosity      which is also used for all sorts of things SEAICE_EPS).
537     (no effect on EVP)      Defaults to SEAICE_EPS for backward compatibility only.
  - rename local suffix "sqr" into "sq" for more consistent variable names  
 o pkg/seaice: add new parameter SEAICE_deltaMin that is used ***only***  
   for regularizing Delta (and nothing else, like the parameter  
   which is also used for all sorts of things SEAICE_EPS). Defaults to  
   SEAICE_EPS for backward compatibility only.  
538  o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with  o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
539    the wrong key by inialising it before use -> fixes a recomputation      the wrong key by inialising it before use -> fixes a recomputation
540    problem but does not fix the gradient      problem but does not fix the gradient
541  o pkg/layers:  o pkg/layers:
542    - move resetting of flux arrays to outside the iLa loop    - move resetting of flux arrays to outside the iLa loop
543      (this caused layers_diapycnal to not work with more than one layer coord.)      (this caused layers_diapycnal to not work with more than one layer coord.)
# Line 40  o pkg/seaice: Line 549  o pkg/seaice:
549    - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it    - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
550      in lab_sea forward experiment (changes results -> updated)      in lab_sea forward experiment (changes results -> updated)
551    - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v    - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
552  o pkg/seaice: modify seaice_lsr.F in order to improve the gradient  o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
553    computations; for SEAICE_VECTORIZE_LSR     computations; for SEAICE_VECTORIZE_LSR
554    - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)    - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
555      sweep to the outside,      sweep to the outside,
556    - remove store directives and add "CADJ loop sequential" directives    - remove store directives and add "CADJ loop sequential" directives
# Line 307  o model/src & mom pkgs: Line 816  o model/src & mom pkgs:
816      just copy level Nr value to level Nr+1.      just copy level Nr value to level Nr+1.
817  o doc:  o doc:
818    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
819  o pkg/streamice:  o pkg/shelfice:
820    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
821      SHELFICE.h: move array shelficemass to init_varia, initialise      SHELFICE.h: move array shelficemass to init_varia, initialise
822      from array shelficemassinit, which is set in init_fixed and      from array shelficemassinit, which is set in init_fixed and

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