/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.2150 by jmc, Mon May 11 23:39:11 2015 UTC revision 1.2251 by mlosch, Mon May 9 11:41:02 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/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
8         with ECCO_CTRL_DEPRECATED defined
9    o verification/global_ocean.cs32x15:
10      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
11        with "selectNHfreeSurf=1".
12    o model/src (non-hydrostatic free-surface):
13      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
14        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
15      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
16        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
17        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
18        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
19      - Update output (changes at machine truncation level) of verification exp:
20        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
21        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
22    o pkg/seaice: ITD code
23      - fix picking up from a single category model by initialising
24        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
25      - split a long warning message in seaice_check_pickup.F into two lines,
26        because NEC SX-ACE cannot deal with the long line.
27    o model/src:
28      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
29    o pkg/seaice:
30      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
31    o pkg/seaice:
32      - add basal stress as parameterisation for grounding ice
33        following Lemieux et al. (2015)
34      - turn on by setting new parameter SEAICEbasalDragK2 to a value
35        larger than 0. Lemieux et al. (2015) recommend 15.
36      - The adjoint complains with extra recomputations so there is also a
37        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
38        order to postpone the problem
39      - compile the new code in lab_sea
40    o verification/halfpipe_streamice:
41      - update both TAF and OpenAD adm output (machine truncation differences)
42    
43    checkpoint65v (2016/04/08)
44    o verification/advect_xz:
45      - increase overlap size from 3 to 4 and add new secondary test for PQM
46        advection scheme (with mono & wino limiter).
47      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
48    o model/src:
49      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
50        added phi0Ref) to set vertical axis origin and phiRef origin;
51        keep Ro_SeaLevel for backward compatibility (with a warning).
52       According to coordinate and fluid type:
53        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
54        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
55        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
56        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
57      - remove Ro_SeaLevel from ATM experiment parameter files;
58      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
59        complement; update output.txt (changes at machine truncation level).
60    o pkg/seaice/seaice_evp.F
61      - simplify computation of deltaZ and zetaZ to simple averaging following
62        Bouillon et al. (2013). This removes a lot of code, but also changes
63        verification experiment lab_sea.hb87 -> updated
64    
65    checkpoint65u (2016/03/14)
66    o pkg/generic_advdiff:
67      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
68        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
69        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
70        testing and not for actual use.
71    o model/src:
72      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
73        origin r = rF(1);
74      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
75        in EOS for height coordinate: enable to include NH Pressure or to use
76        more accurate pressure vertical profile; options not linked to EOS type
77        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
78      - start to implement variable gravity (along vertical): for now, only with
79        z-coords (not even z*).
80      - add Ideal Gas equation of state for height coordinate.
81      - update OpenAD output (affected at machine truncation level) of exp:
82        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
83    o pkg/exf:
84      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
85        of exf interpolation (before any rescaling, rotation or interpolation
86        to velocity point) for each field that gets loaded from file. This option
87        identically mimics the input file organization (e.g. record numbers in year
88        by year input files) besides the change in horizontal grid.
89      - add rotateStressOnAgrid run-time switch so that wind stress fields
90        can be provided on the A-grid in zonal/meridional direction and
91        rotated on the fly. This only applies to the case when the exf
92        interpolation is off and rotateStressOnAgrid is false by default.
93    o model/src:
94      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
95        it's also used with pkg/atm_phys) and add few more parameters (but still
96        inactive, src code yet to come)
97    
98    checkpoint65t (2016/02/10)
99    o pkg/atm_phys:
100      - from Ruth Geen: add optical depth dependence on CO2 concentration.
101    o model/src:
102      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
103        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
104        Update output of exp. deep_anelastic (changes at truncation level).
105    o tools:
106      - add a hack in "remove_comments_sed" (used only with TAF) for recent
107        version of OpenMPI (shipped with FC.23): comment out the new header
108        file "mpif-sizeof.h" which causes problems to TAF.
109    o pkg/seaice:
110      - change the termination criterion so that maxits (SEAICElinearIterMax)
111        has an effect
112      - unify iteration parameters for implicit solvers (JFNK and Picard)
113        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
114        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
115        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
116        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
117        SEAICEnonLinTol     replaces JFNKgamma_nonlin
118      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
119      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
120        use with SEAICEuseKrylov
121    o pkg/seaice/seaice_lsr.F
122        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
123        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
124        an effect.
125    o pkg/seaice: add two new parameters
126      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
127        parameter is not in any namelist)
128      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
129        a preconditioner for the non-linear Newton iteration of the JFNK
130        solver
131    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
132      affects some experiments at truncation level:
133      - global_ocean.cs32x15.icedyn (11 digits),
134      - global_ocean.cs32x15.seaice (11 digits),
135      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
136      - also update global_ocean.cs32x15 adjoint and tangent-linear results
137    o pkg/salt_plume & pkg/thsice:
138      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
139        connect salt_plume flux to ATM-OCN coupling pkgs interface:
140       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
141         export to coupler interface) even without compiling pkg/salt_plume ;
142       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
143         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
144    o pkg/dic:
145      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
146        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
147        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
148      - move also update with values from ATM-OCN Coupler in the same new S/R
149        (previously done in ocn_apply_import.F).
150    o tools/adjoint_options:
151      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
152        has been changed on Jan 14, 2016.
153    o pkg/ggl90:
154      - add alternative discretisation of vertical shear (off by default), to
155        compute the mean (@ grid-cell center) of vertical shear compon instead of
156        vertical shear of mean flow (@ grid-cell center).
157      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
158        results on adjacent faces of cubed-sphere grids; this fix the restart.
159    o pkg/atm_compon_interf:
160      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
161        pass last value, stored directly before export to CPL ;
162        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
163      - remove atmSLPr from pickup files (no longer needed for restart)
164    
165    checkpoint65s (2016/01/13)
166    o eesupp & genmake2:
167       - first check for Function ETIME and, if it fails, then check for subroutine
168         ETIME and consistent output; use the appropriate version in timers.F
169    o model/src:
170      - to check restart test, add option to apply EXCH to U,V earlier, just before
171        integr_continuity; turned off by default.
172    o pkg/dic:
173      - remove CPP option USE_ATMOSCO2 (not needed)
174    o tools/tst_2+2:
175      - try to ignore difference between +0 and -0 in binary file, causing test
176        to fail for no good reason.
177    o eesupp & genmake2:
178      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
179        but also check (in genmake2) that test runs and returns meaningful results.
180    o coupler pkgs:
181      Finish implementation of optionally-exchanged variable switches (started on
182       Nov 12) with addition of few more exchanged fields, including 2-way exchange
183       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
184       advection in OCN component; this requires sequential coupling.
185      coupler (pkg/atm_ocn_coupler):
186      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
187        routines (useful for debug).
188      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
189         flux, DIC fields) if corresponding switch is ON.
190      - add option to export RunOff to OCN (to use for DIC river input)
191      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
192      components (pkg/atm_ & ocn_compon_interf):
193      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
194        optionally exchanged fields; add a check & stop in cpl_readparms.F.
195        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
196        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
197      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
198        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
199      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
200      - hold in common block coupler optionally-exchanged variable switch
201        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
202      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
203        this is intended to replace the OCN cplFldtave.* output files (not updated
204        to contain new additional exchanged fields).
205    o pkg/dic:
206      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
207    o pkg/thsice:
208      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
209        and writing of thsice pickup files.
210    o pkg/atm_compon_interf:
211      - move all field individual export-call out of cpl_export_import_data.F
212        into new S/R ATM_EXPORT_FIELDS
213    o pkg/atm_compon_interf:
214      - store state variables (for now, only thSIce fields) just before beeing
215        exported (in cpl_export_import_data.F, like on ocean side) instead of from
216        atm_store_my_data.F like all exported fluxes.
217      - new version of pickup_cpl: write field names into meta file and read meta
218        file to find field postion in pickup. Also only write/read fields meeded for
219        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
220    o pkg/dic:
221      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
222    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
223        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
224        value can be from domain [0,1] to average between the two methods
225    o pkg/atm_phys:
226      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
227        hold fixed in time).
228    
229    checkpoint65r (2015/12/21)
230    o pkg/seaice:
231        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
232        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
233    o pkg/seaice:
234      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
235        when SEAICEscaleSurfStress=.TRUE.,
236      - apply areaW and areaS in S/R seaice_calc_lhs
237    o pkg/atm_phys:
238      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
239        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
240        for individual contribution (convection, LSC cond, radiation)
241      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
242        information); activated with: solar_exponent=0. and wv_exponent=-1.
243    o pkg/ggl90:
244      - within IDEMIX add upper limit for horizontal group velocity to
245        avoid instability problems in the explicit horizontal diffusion term for
246        long time steps or high resolution
247    o pkg/diagnostics:
248      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
249        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
250    o testreport:
251      - remove "-v" (verbose option) in default mpirun command.
252    o pkg/seaice/seaice_growth:
253      - catch potential division by zero in ITD code, does not change
254        verification results
255    o pkg/ecco:
256      - retire old codes to the Attic. The calls to retired functions are
257        left in a commented form in case they ever need to be re-activated.
258      - ecco_check.F: issue warning if any old CPP option is
259        defined that corresponds to retired codes -- then stop.
260    o pkg/atm_compon_interf:
261      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
262        coupler: use last time-step value instead of average over cplSendFrq_iter
263        time-step, similar to what is done for seaIceMass.
264        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
265    o eesupp & genmake2:
266      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
267        <= remove until a fix is found for some ifort version on ia32 machine.
268    o pkg/seaice/seaice_evp:
269      - refine residual computation
270    
271    checkpoint65q (2015/11/18)
272    o pkg/seaice/seaice_evp:
273      - fix residual computations so that they no longer affect the actual
274        simulation code
275      - fix seaice_readparams to be able to actually set new parameters
276        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
277    o model/src:
278      - fix wrong truncation (single prec) from "FLOAT" function in expressions
279        like: deltaT*FLOAT(myIter) when myIter is large:
280         a) replaced by DFLOAT (if not seen by TAF);
281         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
282    o pkg/aim_v23:
283      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
284        when pickupSuff is set ; do write rolling pickups + at the end of the run.
285    o pkg/atm_ocn_coupler + ocn_compon_interf:
286      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
287        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
288        add corresponding call in DO_OCEANIC_PHYS.
289    o coupler pkgs:
290      Start a new way to set-up optionally-exchanged variables (previously, only
291       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
292       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
293       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
294       compononent param default can be set accordingly).
295      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
296       but rather applies to a group a fields (going both ways like for DIC)
297       and corresponds to an option of coupling config.
298      coupler (pkg/atm_ocn_coupler):
299      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
300        and read namelist directly (without eessup S/R calls) instead of
301        in the very un-flexible old way, 1 param per line, in fixed order;
302      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
303        cleanly in CPL_CHECK_CPLCONFIG
304      - add new coupling-exchange selectors (some not yet active) including
305        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
306                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
307      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
308        component ; called directly from coupler.F, after comp. registrations;
309      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
310         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
311          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
312      components (pkg/atm_ & ocn_compon_interf):
313      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
314        CPP header file in all pkg source files.
315      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
316        ATM/OCN_CHECK_CPLCONFIG;
317      - add error-counter to track errors (e.g., in "data.cpl") and to stop
318        cleanly in ATM/OCN_CHECK_CPLCONFIG;
319      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
320        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
321        before PACKAGES_READPARMS;
322      verification/cpl_aim+ocn/:
323      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
324        "data.cpl" for coupler (in input_cpl).
325    o eesupp/inc:
326      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
327        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
328        to always cumulate tile local-sum in the same order (still uses
329        MPI_Allreduce like standard code).
330      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
331        that are now identical to standard version (in eesupp/inc).
332    o pkg/shelfice:
333      - add SHELFICETransCoeffTFile for initializing spatially varying
334        heat and salt transfer coefficients
335    o pkg/atm_compon_interf & ocn_compon_interf:
336      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
337        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
338      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
339    o pkg/atm_ocn_coupler:
340      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
341    o pkg/rbcs:
342      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
343        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
344      - add a short report (to STDOUT) about RBCS-mask settings.
345    
346    checkpoint65p (2015/10/23)
347    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
348        there is no adjoint test for EVP, we don't know what it does to the adjoint
349        solution, but at least there are no more recomputation warnings left
350    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
351        a chance of giving the same results as a fully converged VP (JFNK) solver
352    o tools/adjoint_options/adjoint_diva:
353      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
354    o pkg/streamice:
355      - spotted bug in streamice_driving_stress using dyG where should have been dxG
356    o pkg/exf:
357      - remove STOP statement that prevented to use wind or (wind-)stress
358        interpolation for constant-in-time forcing fields (wind/stress period = 0).
359    o pkg/seaice:
360      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
361        5 additionals 2D fields and 6 new store directives
362      - change logic in seaice_readparms.F: EVP code can now be turned on in
363        various ways, setting SEAICE_deltaTev is no longer required,
364        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
365        or SEAICEaEVPcoeff
366    o pkg/shelfice/shelfice_thermodynamics.F
367      - redefining uLoc/vLoc to u/v, instead of 2u/v
368    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
369      - this is an intermediate state of a truely converging EVP that has
370        the potential of outperforming implicit VP methods, I do not recommend
371        using it yet.
372      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
373        and all parameters are hardwired
374      - for convergence it still requires very smooth regularisations, that means,
375        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
376        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
377        specific averaging appears to be required, still subject to tuning
378      - still needs cleaning and I need to turn parameter into runtime parameters
379      - add code to compute and print residuals of iteration, compile with
380        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
381    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
382      that entered with r1.54 on Sep04, 2015, -> update results
383    
384    checkpoint65o (2015/09/14)
385    o pkg/mom_vecinv & mom_common:
386      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
387        called from there.
388      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
389        allows to use Vector-Invariant form in deep atmos and anelastic formulation
390    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
391      and Koenig-Beatty+Holland (2012)
392      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
393      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
394      - requires an extra input argument for S/R seaice_calc_viscosities
395      - tensileStrength's depth dependence is different from Itkin et al. (2015)
396        (to be changed and played with, for now exponential)
397    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
398      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
399        by AREA according to Connelly et al. (2004), JPO.
400      - For EVP and the LSR solver, the implicit part of the drag term is
401        the only non-zero term in the denominator when there is no ice (which
402        prevented running the model with zero ice-ocean drag). If
403        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
404        (or zero main diagonals BU/BV) which need to be caught. A practical
405        consequence is that for open water, the momentum equation reduce
406        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
407        they happen to be zero, often leading to a non-zero solution over
408        open water.
409    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
410        efficient EVP method.
411      - introduce area-weighted averages for e12 (analogously to
412        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
413        remain, but also changing the order of terms in the previous average
414        changed the results as much) -> update experiment
415      - add SEAICE_DELTA_SMOOTHREG code
416      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
417        TEM-code
418      - adjust loop bounds so that only required fields are computed
419      - add new averaging code for zetaZ/deltaZ (again similar to
420        seaice_calc_viscosities.F), inactive by default for now (will change
421        results again), but will replace old code eventually
422    o eesupp/src:
423      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
424        to always cumulate tile local-sum in the same order
425        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
426        Still uses MPI_Allreduce (like standard code) but on array of tiles
427        and should be faster than GLOBAL_SUM_SEND_RECV code.
428      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
429        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
430      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
431         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
432         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
433         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
434         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
435    
436    checkpoint65n (2015/07/29)
437    o pkg/thsice:
438      - add a warning when used with pkg/aim but without updating SST
439        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
440    o pkg/offline:
441      - change where Offline-Fields are loaded, from load_fields_driver.F to
442        directly within FORWARD_STEP, just after updating iter number and time;
443      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
444        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
445       These changes allow:
446        a) to recover exactly on-line results using deltaToffline=deltaTClock,
447        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
448        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
449        time-step, both with GM & KPP files and with recomputing these fields;
450        b) no needs to switch on staggerTimeStep anymore;
451        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
452      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
453    o pkg/offline:
454      - change (rarely used) offset-iteration parameter to an offset time (in s):
455        can easily recover previous offset-iter effect by setting offset-time
456        (offlineTimeOffset) to offset-iter x deltaToffline;
457      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
458        in KPP as part of surface buoyancy forcing) in offline run.
459      - fix ptracers KPP non-local term in the case where KPP is re-computed.
460    o OpenAD
461      - Adding preliminary ggl90 test to OpenAD verification.
462        Config. with ggl90 currently diverges after 64 time steps
463        so will need more work to become more stable
464      - Adding preliminary kpp test to OpenAD verification.
465        required small tweakes in kpp_routines.F
466      - Merge and update from Krishna Narayanan's contrib area:
467        * Add one variable for preliminary OpenAD DIVA
468        * Add replacement time-stepping for OpenAD DIVA
469        * genmake2 flag -diva (but only for OpenAD; preliminary)
470        * required modifs for OAD_support
471        successful preliminary test for tutorial_global_oce_biogeo/
472    o pkg/seaice:
473      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
474      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
475        delta with a smooth function in s/r seaice_calc_viscosity
476        (no effect on EVP)
477      - rename local suffix "sqr" into "sq" for more consistent variable names
478    o pkg/seaice:
479        add new parameter SEAICE_deltaMin that is used ***only***
480        for regularizing Delta (and nothing else, like the parameter
481        which is also used for all sorts of things SEAICE_EPS).
482        Defaults to SEAICE_EPS for backward compatibility only.
483    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
484        the wrong key by inialising it before use -> fixes a recomputation
485        problem but does not fix the gradient
486    o pkg/layers:
487      - move resetting of flux arrays to outside the iLa loop
488        (this caused layers_diapycnal to not work with more than one layer coord.)
489      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
490    o pkg/layers:
491      - remove from common block 3D layers fields (used to diagnose transport
492        in tracer coords) and declare them as local arrays in layers_calc.F
493    o pkg/seaice:
494      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
495        in lab_sea forward experiment (changes results -> updated)
496      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
497    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
498       computations; for SEAICE_VECTORIZE_LSR
499      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
500        sweep to the outside,
501      - remove store directives and add "CADJ loop sequential" directives
502        in analogy to model/src/solve_tridiagonal.F
503      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
504        boundaries to yield more readable code. This has also the charming side
505        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
506        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
507        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
508        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
509        an additional option)
510       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
511       but the adjoint gradients (which are affected by this change) still explode.
512    o coupler (atm & ocn _compon_interf):
513      - avoid using Exch2 IO mapping if not suitable.
514    
515    checkpoint65m (2015/06/15)
516    o pkg/layers:
517      - clean-up old parameters setting (from Sep 2012):
518        + remove old parameters setting from common block (declared locally);
519        + stop if any old parameter is mixed with new parameters;
520        + check for valid or consistent parameter setting (e.g., layers_name)
521      - check that layers_bounds for Pot.Density are in the right range;
522        this is supposed to catch un-updated setting after recently shifting
523        potential density field "prho" by -1000 (now in "sigma" scale).
524    o pkg/layers:
525      - Added missing call to layers_fill for keeping track of tottend in
526        pkg/diagnostics/diagnostics_fill_state.F
527    o pkg/layers:
528      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
529        of diapycnal fluxes
530    o pkg/layers:
531      - reverted changes to interpolation to previous treatment; there
532        was never actually a problem
533    o pkg/layers:
534      - fix interpolation of layers tracers in the presence of partial cells
535      - add lots of new functionality to compute water mass transformation
536        (enabled by CPP flag LAYERS_THERMODYNAMICS)
537      - add new calls from main code (diags_oceanic_surf_flux.F,
538        thermodynamics.F, impldiff.F) and gad to save the necessary fields
539        for layers_thermodynamics calculations
540    o pkg/ptracers:
541      - add capability of stepping a passive tracer forward without advection
542        by setting PTRACERS_advScheme to 0.
543    o pkg/diagnostics:
544      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
545    o pkg/layers:
546      - shift potential density field "prho" by -1000 for density layer averaging so
547        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
548        Note that density bin boundaries (layers_bounds in data.layers) have
549        to be set accordingly (i.e., shifted, in sigma scale).
550  o pkg/layers:  o pkg/layers:
551    - fix snap-shot output of layer thickness @ V.pt and output of pot.density    - fix snap-shot output of layer thickness @ V.pt and output of pot.density
552    - fix calculation of layer non-weighted velocity and layer probability    - fix calculation of layer non-weighted velocity and layer probability

Legend:
Removed from v.1.2150  
changed lines
  Added in v.1.2251

  ViewVC Help
Powered by ViewVC 1.1.22