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revision 1.2157 by rpa, Tue Jun 9 16:31:45 2015 UTC revision 1.2282 by jmc, Tue Nov 29 00:08:29 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 model & momentum pkgs:
8      - implement fully implicit bottom friction combined with implicit surf.
9        pressure, for now, only in hydrostic formulation:
10        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
11          and run with selectImplicitDrag=2 ;
12        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
13      - partial implicit time-stepping (bot. friction + vert. visc first, then
14        surf. press) corresponding to selectImplicitDrag=1 should be applicable
15        to NH formulation but not available until we solve for surf. pressure
16        increment (instead of full etaN).
17    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
18      - this is a first version that includes many regularisations that may
19        not all be necessary, to be sorted out,
20      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
21      - change one verification experiment in seaice_itd to use and test new code
22      - seaice_growth: catch a case where the argument of log can be zero
23        or smaller (important for code stability)
24    o model/src:
25      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
26        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
27        similar A.X'=Y' system (with same matrix A) in subsequent calls;
28        switch based on errCode (In/Out) argument value; in calling routines,
29        initialise errCode before first call.
30    
31    checkpoint66a (2016/10/18)
32    o pkg/bling:
33      - BLING package now loads in atmospheric pCO2 file using exf package routines
34        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
35    o model/src & pkg/ptracers:
36      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
37        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
38        implicitDiffusion (respectively) are used (even without momImplVertAdv
39        or temp,salt,PTRACERS_ImplVertAdv).
40    o model/src & generic_advdiff:
41      - add parenthesis in main diagonal calculation of implicit vertical
42        diffusion matrix (impldiff.F & gad_implicit_r.F).
43        This affects results at machine truncation level; update output of many
44        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
45    o pkg/mom_commom & generic_advdiff:
46      - add deep atmosphere and anelastic scaling factor in implicit vertical
47        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
48    o model/src:
49      - remove few unnecessary temp array copies in solve_tridiagonal.F
50        & solve_pentadiagonal.F
51    
52    checkpoint65z (2016/09/28)
53    o pkg/seaice: fix multithreading for seaice_fgmres.F
54      - remove unecessary variables from common blocks
55      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
56        basis, that are stored in commom blocks (including integer variable i1)
57      - clean up code a little by removing commented lines that refer to
58        original code
59      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
60    o MITgcm manual:
61      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
62        preliminary documentation for generic controls (8.3; ctrl.tex),
63        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
64        ecco_costfunction.tex
65    o pkg/ecco:
66      - update and cleanup list of CCP options
67      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
68        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
69      - add checks that retired run-time options are not used, and in relation
70        to gencost_mask and gencost_errfile
71      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
72        gencost_nrecperiod
73      - fix m_eta computation for virtual salt flux case
74      - add m_horflux_vol case (selected via gencost_barfile) that computes
75        transports via cost_gencost_boxmean (gencost_flag=-3)
76      - use gencost_flag more systematically (i.e., avoid using gencost_name)
77        for code switches (aside from physical variable selection)
78    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
79      attempt appears to be a bit of a hack and my need some repair down the road
80    o pkg/exf:
81      - interpolation near South Pole: fix criteria on input field latitude.
82    o pkg/icefront & pkg/exf:
83      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
84        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
85    o pkg/exf:
86      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
87        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
88        (add suffix "_out" instead of a prefix); keep same record number as in
89        input file but always write record 1 first (to avoid a STOP in I/O S/R).
90        Change output file content by writing interpolated field before applying
91        land-sea mask (helpful for debug).
92      - 2 compon. vector interpolation with rotation: apply scaling factor on
93        each compon. (Eastward and Northward) just before rotation.
94    o pkg/bling:
95      - Cleaned package. Removed not needed code and comments.
96      - adjoint example now works
97        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
98    o pkg/ptracers:
99      - add Bruno Deremble's code to complete the linear surface correction
100        for tracer conservation;
101      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
102    
103    checkpoint65y (2016/07/29)
104    o pkg/debug (stats):
105      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
106        proc/thread mapping);
107      - fix Min & Max for case where 1 thread has only empty tiles;
108      - use RL variable to count number of wet grid points (with big domain,
109        can be too large to fit into integer*4).
110    o pkg/monitor:
111      - use RL variable to count number of wet grid points (but used only for del2)
112      - add new routine to compute Advective CFL within tracer time-stepping with
113        writing delayed until next monitor output.
114    o pkg/obcs:
115      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
116    o pkg/cal:
117      - calandar-dump: treat case myTime < timePhase in the same way as in
118        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
119    o pkg/dic & seaice:
120      - fix compilation of ocean component for coupled atm+ocn model with
121        seaice dynamics & dic.
122    
123    checkpoint65x (2016/06/11)
124    o add a license text file in main MITgcm tree.
125    o added pkg/bling:
126      - intermediate complexity biogeochemical model
127      - see bling_description.txt for details
128      - verification experiment is global_oce_biogeo_bling (for now, in
129        Contrib/verification_other/); tested daily on baudelaire with gfortran.
130      - add entry point in pkg/gchem for new pkg "bling".
131    o pkg/seaice: fix tensile stength computation
132      - replace global field tensileStrength by tensileStrFac
133      - tensileStrFac can be computed once in S/R seaice_init_varia
134      - fortunately that does not affect any verification results
135    
136    checkpoint65w (2016/05/12)
137    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
138         with ECCO_CTRL_DEPRECATED defined
139    o verification/global_ocean.cs32x15:
140      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
141        with "selectNHfreeSurf=1".
142    o model/src (non-hydrostatic free-surface):
143      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
144        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
145      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
146        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
147        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
148        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
149      - Update output (changes at machine truncation level) of verification exp:
150        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
151        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
152    o pkg/seaice: ITD code
153      - fix picking up from a single category model by initialising
154        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
155      - split a long warning message in seaice_check_pickup.F into two lines,
156        because NEC SX-ACE cannot deal with the long line.
157    o model/src:
158      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
159    o pkg/seaice:
160      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
161    o pkg/seaice:
162      - add basal stress as parameterisation for grounding ice
163        following Lemieux et al. (2015)
164      - turn on by setting new parameter SEAICEbasalDragK2 to a value
165        larger than 0. Lemieux et al. (2015) recommend 15.
166      - The adjoint complains with extra recomputations so there is also a
167        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
168        order to postpone the problem
169      - compile the new code in lab_sea
170    o verification/halfpipe_streamice:
171      - update both TAF and OpenAD adm output (machine truncation differences)
172    
173    checkpoint65v (2016/04/08)
174    o verification/advect_xz:
175      - increase overlap size from 3 to 4 and add new secondary test for PQM
176        advection scheme (with mono & wino limiter).
177      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
178    o model/src:
179      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
180        added phi0Ref) to set vertical axis origin and phiRef origin;
181        keep Ro_SeaLevel for backward compatibility (with a warning).
182       According to coordinate and fluid type:
183        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
184        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
185        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
186        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
187      - remove Ro_SeaLevel from ATM experiment parameter files;
188      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
189        complement; update output.txt (changes at machine truncation level).
190    o pkg/seaice/seaice_evp.F
191      - simplify computation of deltaZ and zetaZ to simple averaging following
192        Bouillon et al. (2013). This removes a lot of code, but also changes
193        verification experiment lab_sea.hb87 -> updated
194    
195    checkpoint65u (2016/03/14)
196    o pkg/generic_advdiff:
197      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
198        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
199        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
200        testing and not for actual use.
201    o model/src:
202      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
203        origin r = rF(1);
204      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
205        in EOS for height coordinate: enable to include NH Pressure or to use
206        more accurate pressure vertical profile; options not linked to EOS type
207        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
208      - start to implement variable gravity (along vertical): for now, only with
209        z-coords (not even z*).
210      - add Ideal Gas equation of state for height coordinate.
211      - update OpenAD output (affected at machine truncation level) of exp:
212        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
213    o pkg/exf:
214      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
215        of exf interpolation (before any rescaling, rotation or interpolation
216        to velocity point) for each field that gets loaded from file. This option
217        identically mimics the input file organization (e.g. record numbers in year
218        by year input files) besides the change in horizontal grid.
219      - add rotateStressOnAgrid run-time switch so that wind stress fields
220        can be provided on the A-grid in zonal/meridional direction and
221        rotated on the fly. This only applies to the case when the exf
222        interpolation is off and rotateStressOnAgrid is false by default.
223    o model/src:
224      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
225        it's also used with pkg/atm_phys) and add few more parameters (but still
226        inactive, src code yet to come)
227    
228    checkpoint65t (2016/02/10)
229    o pkg/atm_phys:
230      - from Ruth Geen: add optical depth dependence on CO2 concentration.
231    o model/src:
232      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
233        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
234        Update output of exp. deep_anelastic (changes at truncation level).
235    o tools:
236      - add a hack in "remove_comments_sed" (used only with TAF) for recent
237        version of OpenMPI (shipped with FC.23): comment out the new header
238        file "mpif-sizeof.h" which causes problems to TAF.
239    o pkg/seaice:
240      - change the termination criterion so that maxits (SEAICElinearIterMax)
241        has an effect
242      - unify iteration parameters for implicit solvers (JFNK and Picard)
243        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
244        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
245        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
246        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
247        SEAICEnonLinTol     replaces JFNKgamma_nonlin
248      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
249      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
250        use with SEAICEuseKrylov
251    o pkg/seaice/seaice_lsr.F
252        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
253        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
254        an effect.
255    o pkg/seaice: add two new parameters
256      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
257        parameter is not in any namelist)
258      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
259        a preconditioner for the non-linear Newton iteration of the JFNK
260        solver
261    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
262      affects some experiments at truncation level:
263      - global_ocean.cs32x15.icedyn (11 digits),
264      - global_ocean.cs32x15.seaice (11 digits),
265      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
266      - also update global_ocean.cs32x15 adjoint and tangent-linear results
267    o pkg/salt_plume & pkg/thsice:
268      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
269        connect salt_plume flux to ATM-OCN coupling pkgs interface:
270       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
271         export to coupler interface) even without compiling pkg/salt_plume ;
272       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
273         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
274    o pkg/dic:
275      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
276        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
277        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
278      - move also update with values from ATM-OCN Coupler in the same new S/R
279        (previously done in ocn_apply_import.F).
280    o tools/adjoint_options:
281      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
282        has been changed on Jan 14, 2016.
283    o pkg/ggl90:
284      - add alternative discretisation of vertical shear (off by default), to
285        compute the mean (@ grid-cell center) of vertical shear compon instead of
286        vertical shear of mean flow (@ grid-cell center).
287      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
288        results on adjacent faces of cubed-sphere grids; this fix the restart.
289    o pkg/atm_compon_interf:
290      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
291        pass last value, stored directly before export to CPL ;
292        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
293      - remove atmSLPr from pickup files (no longer needed for restart)
294    
295    checkpoint65s (2016/01/13)
296    o eesupp & genmake2:
297       - first check for Function ETIME and, if it fails, then check for subroutine
298         ETIME and consistent output; use the appropriate version in timers.F
299    o model/src:
300      - to check restart test, add option to apply EXCH to U,V earlier, just before
301        integr_continuity; turned off by default.
302    o pkg/dic:
303      - remove CPP option USE_ATMOSCO2 (not needed)
304    o tools/tst_2+2:
305      - try to ignore difference between +0 and -0 in binary file, causing test
306        to fail for no good reason.
307    o eesupp & genmake2:
308      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
309        but also check (in genmake2) that test runs and returns meaningful results.
310    o coupler pkgs:
311      Finish implementation of optionally-exchanged variable switches (started on
312       Nov 12) with addition of few more exchanged fields, including 2-way exchange
313       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
314       advection in OCN component; this requires sequential coupling.
315      coupler (pkg/atm_ocn_coupler):
316      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
317        routines (useful for debug).
318      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
319         flux, DIC fields) if corresponding switch is ON.
320      - add option to export RunOff to OCN (to use for DIC river input)
321      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
322      components (pkg/atm_ & ocn_compon_interf):
323      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
324        optionally exchanged fields; add a check & stop in cpl_readparms.F.
325        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
326        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
327      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
328        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
329      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
330      - hold in common block coupler optionally-exchanged variable switch
331        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
332      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
333        this is intended to replace the OCN cplFldtave.* output files (not updated
334        to contain new additional exchanged fields).
335    o pkg/dic:
336      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
337    o pkg/thsice:
338      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
339        and writing of thsice pickup files.
340    o pkg/atm_compon_interf:
341      - move all field individual export-call out of cpl_export_import_data.F
342        into new S/R ATM_EXPORT_FIELDS
343    o pkg/atm_compon_interf:
344      - store state variables (for now, only thSIce fields) just before beeing
345        exported (in cpl_export_import_data.F, like on ocean side) instead of from
346        atm_store_my_data.F like all exported fluxes.
347      - new version of pickup_cpl: write field names into meta file and read meta
348        file to find field postion in pickup. Also only write/read fields meeded for
349        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
350    o pkg/dic:
351      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
352    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
353        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
354        value can be from domain [0,1] to average between the two methods
355    o pkg/atm_phys:
356      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
357        hold fixed in time).
358    
359    checkpoint65r (2015/12/21)
360    o pkg/seaice:
361        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
362        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
363    o pkg/seaice:
364      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
365        when SEAICEscaleSurfStress=.TRUE.,
366      - apply areaW and areaS in S/R seaice_calc_lhs
367    o pkg/atm_phys:
368      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
369        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
370        for individual contribution (convection, LSC cond, radiation)
371      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
372        information); activated with: solar_exponent=0. and wv_exponent=-1.
373    o pkg/ggl90:
374      - within IDEMIX add upper limit for horizontal group velocity to
375        avoid instability problems in the explicit horizontal diffusion term for
376        long time steps or high resolution
377    o pkg/diagnostics:
378      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
379        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
380    o testreport:
381      - remove "-v" (verbose option) in default mpirun command.
382    o pkg/seaice/seaice_growth:
383      - catch potential division by zero in ITD code, does not change
384        verification results
385    o pkg/ecco:
386      - retire old codes to the Attic. The calls to retired functions are
387        left in a commented form in case they ever need to be re-activated.
388      - ecco_check.F: issue warning if any old CPP option is
389        defined that corresponds to retired codes -- then stop.
390    o pkg/atm_compon_interf:
391      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
392        coupler: use last time-step value instead of average over cplSendFrq_iter
393        time-step, similar to what is done for seaIceMass.
394        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
395    o eesupp & genmake2:
396      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
397        <= remove until a fix is found for some ifort version on ia32 machine.
398    o pkg/seaice/seaice_evp:
399      - refine residual computation
400    
401    checkpoint65q (2015/11/18)
402    o pkg/seaice/seaice_evp:
403      - fix residual computations so that they no longer affect the actual
404        simulation code
405      - fix seaice_readparams to be able to actually set new parameters
406        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
407    o model/src:
408      - fix wrong truncation (single prec) from "FLOAT" function in expressions
409        like: deltaT*FLOAT(myIter) when myIter is large:
410         a) replaced by DFLOAT (if not seen by TAF);
411         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
412    o pkg/aim_v23:
413      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
414        when pickupSuff is set ; do write rolling pickups + at the end of the run.
415    o pkg/atm_ocn_coupler + ocn_compon_interf:
416      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
417        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
418        add corresponding call in DO_OCEANIC_PHYS.
419    o coupler pkgs:
420      Start a new way to set-up optionally-exchanged variables (previously, only
421       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
422       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
423       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
424       compononent param default can be set accordingly).
425      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
426       but rather applies to a group a fields (going both ways like for DIC)
427       and corresponds to an option of coupling config.
428      coupler (pkg/atm_ocn_coupler):
429      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
430        and read namelist directly (without eessup S/R calls) instead of
431        in the very un-flexible old way, 1 param per line, in fixed order;
432      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
433        cleanly in CPL_CHECK_CPLCONFIG
434      - add new coupling-exchange selectors (some not yet active) including
435        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
436                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
437      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
438        component ; called directly from coupler.F, after comp. registrations;
439      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
440         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
441          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
442      components (pkg/atm_ & ocn_compon_interf):
443      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
444        CPP header file in all pkg source files.
445      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
446        ATM/OCN_CHECK_CPLCONFIG;
447      - add error-counter to track errors (e.g., in "data.cpl") and to stop
448        cleanly in ATM/OCN_CHECK_CPLCONFIG;
449      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
450        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
451        before PACKAGES_READPARMS;
452      verification/cpl_aim+ocn/:
453      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
454        "data.cpl" for coupler (in input_cpl).
455    o eesupp/inc:
456      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
457        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
458        to always cumulate tile local-sum in the same order (still uses
459        MPI_Allreduce like standard code).
460      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
461        that are now identical to standard version (in eesupp/inc).
462    o pkg/shelfice:
463      - add SHELFICETransCoeffTFile for initializing spatially varying
464        heat and salt transfer coefficients
465    o pkg/atm_compon_interf & ocn_compon_interf:
466      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
467        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
468      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
469    o pkg/atm_ocn_coupler:
470      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
471    o pkg/rbcs:
472      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
473        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
474      - add a short report (to STDOUT) about RBCS-mask settings.
475    
476    checkpoint65p (2015/10/23)
477    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
478        there is no adjoint test for EVP, we don't know what it does to the adjoint
479        solution, but at least there are no more recomputation warnings left
480    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
481        a chance of giving the same results as a fully converged VP (JFNK) solver
482    o tools/adjoint_options/adjoint_diva:
483      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
484    o pkg/streamice:
485      - spotted bug in streamice_driving_stress using dyG where should have been dxG
486    o pkg/exf:
487      - remove STOP statement that prevented to use wind or (wind-)stress
488        interpolation for constant-in-time forcing fields (wind/stress period = 0).
489    o pkg/seaice:
490      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
491        5 additionals 2D fields and 6 new store directives
492      - change logic in seaice_readparms.F: EVP code can now be turned on in
493        various ways, setting SEAICE_deltaTev is no longer required,
494        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
495        or SEAICEaEVPcoeff
496    o pkg/shelfice/shelfice_thermodynamics.F
497      - redefining uLoc/vLoc to u/v, instead of 2u/v
498    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
499      - this is an intermediate state of a truely converging EVP that has
500        the potential of outperforming implicit VP methods, I do not recommend
501        using it yet.
502      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
503        and all parameters are hardwired
504      - for convergence it still requires very smooth regularisations, that means,
505        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
506        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
507        specific averaging appears to be required, still subject to tuning
508      - still needs cleaning and I need to turn parameter into runtime parameters
509      - add code to compute and print residuals of iteration, compile with
510        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
511    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
512      that entered with r1.54 on Sep04, 2015, -> update results
513    
514    checkpoint65o (2015/09/14)
515    o pkg/mom_vecinv & mom_common:
516      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
517        called from there.
518      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
519        allows to use Vector-Invariant form in deep atmos and anelastic formulation
520    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
521      and Koenig-Beatty+Holland (2012)
522      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
523      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
524      - requires an extra input argument for S/R seaice_calc_viscosities
525      - tensileStrength's depth dependence is different from Itkin et al. (2015)
526        (to be changed and played with, for now exponential)
527    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
528      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
529        by AREA according to Connelly et al. (2004), JPO.
530      - For EVP and the LSR solver, the implicit part of the drag term is
531        the only non-zero term in the denominator when there is no ice (which
532        prevented running the model with zero ice-ocean drag). If
533        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
534        (or zero main diagonals BU/BV) which need to be caught. A practical
535        consequence is that for open water, the momentum equation reduce
536        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
537        they happen to be zero, often leading to a non-zero solution over
538        open water.
539    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
540        efficient EVP method.
541      - introduce area-weighted averages for e12 (analogously to
542        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
543        remain, but also changing the order of terms in the previous average
544        changed the results as much) -> update experiment
545      - add SEAICE_DELTA_SMOOTHREG code
546      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
547        TEM-code
548      - adjust loop bounds so that only required fields are computed
549      - add new averaging code for zetaZ/deltaZ (again similar to
550        seaice_calc_viscosities.F), inactive by default for now (will change
551        results again), but will replace old code eventually
552    o eesupp/src:
553      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
554        to always cumulate tile local-sum in the same order
555        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
556        Still uses MPI_Allreduce (like standard code) but on array of tiles
557        and should be faster than GLOBAL_SUM_SEND_RECV code.
558      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
559        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
560      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
561         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
562         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
563         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
564         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
565    
566    checkpoint65n (2015/07/29)
567    o pkg/thsice:
568      - add a warning when used with pkg/aim but without updating SST
569        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
570    o pkg/offline:
571      - change where Offline-Fields are loaded, from load_fields_driver.F to
572        directly within FORWARD_STEP, just after updating iter number and time;
573      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
574        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
575       These changes allow:
576        a) to recover exactly on-line results using deltaToffline=deltaTClock,
577        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
578        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
579        time-step, both with GM & KPP files and with recomputing these fields;
580        b) no needs to switch on staggerTimeStep anymore;
581        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
582      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
583    o pkg/offline:
584      - change (rarely used) offset-iteration parameter to an offset time (in s):
585        can easily recover previous offset-iter effect by setting offset-time
586        (offlineTimeOffset) to offset-iter x deltaToffline;
587      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
588        in KPP as part of surface buoyancy forcing) in offline run.
589      - fix ptracers KPP non-local term in the case where KPP is re-computed.
590    o OpenAD
591      - Adding preliminary ggl90 test to OpenAD verification.
592        Config. with ggl90 currently diverges after 64 time steps
593        so will need more work to become more stable
594      - Adding preliminary kpp test to OpenAD verification.
595        required small tweakes in kpp_routines.F
596      - Merge and update from Krishna Narayanan's contrib area:
597        * Add one variable for preliminary OpenAD DIVA
598        * Add replacement time-stepping for OpenAD DIVA
599        * genmake2 flag -diva (but only for OpenAD; preliminary)
600        * required modifs for OAD_support
601        successful preliminary test for tutorial_global_oce_biogeo/
602    o pkg/seaice:
603      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
604      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
605        delta with a smooth function in s/r seaice_calc_viscosity
606        (no effect on EVP)
607      - rename local suffix "sqr" into "sq" for more consistent variable names
608    o pkg/seaice:
609        add new parameter SEAICE_deltaMin that is used ***only***
610        for regularizing Delta (and nothing else, like the parameter
611        which is also used for all sorts of things SEAICE_EPS).
612        Defaults to SEAICE_EPS for backward compatibility only.
613    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
614        the wrong key by inialising it before use -> fixes a recomputation
615        problem but does not fix the gradient
616    o pkg/layers:
617      - move resetting of flux arrays to outside the iLa loop
618        (this caused layers_diapycnal to not work with more than one layer coord.)
619      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
620    o pkg/layers:
621      - remove from common block 3D layers fields (used to diagnose transport
622        in tracer coords) and declare them as local arrays in layers_calc.F
623    o pkg/seaice:
624      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
625        in lab_sea forward experiment (changes results -> updated)
626      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
627    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
628       computations; for SEAICE_VECTORIZE_LSR
629      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
630        sweep to the outside,
631      - remove store directives and add "CADJ loop sequential" directives
632        in analogy to model/src/solve_tridiagonal.F
633      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
634        boundaries to yield more readable code. This has also the charming side
635        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
636        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
637        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
638        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
639        an additional option)
640       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
641       but the adjoint gradients (which are affected by this change) still explode.
642    o coupler (atm & ocn _compon_interf):
643      - avoid using Exch2 IO mapping if not suitable.
644    
645    checkpoint65m (2015/06/15)
646    o pkg/layers:
647      - clean-up old parameters setting (from Sep 2012):
648        + remove old parameters setting from common block (declared locally);
649        + stop if any old parameter is mixed with new parameters;
650        + check for valid or consistent parameter setting (e.g., layers_name)
651      - check that layers_bounds for Pot.Density are in the right range;
652        this is supposed to catch un-updated setting after recently shifting
653        potential density field "prho" by -1000 (now in "sigma" scale).
654  o pkg/layers:  o pkg/layers:
655    - Added missing call to layers_fill for keeping track of tottend in    - Added missing call to layers_fill for keeping track of tottend in
656      pkg/diagnostics/diagnostics_fill_state.F      pkg/diagnostics/diagnostics_fill_state.F
# Line 21  o pkg/layers: Line 668  o pkg/layers:
668      thermodynamics.F, impldiff.F) and gad to save the necessary fields      thermodynamics.F, impldiff.F) and gad to save the necessary fields
669      for layers_thermodynamics calculations      for layers_thermodynamics calculations
670  o pkg/ptracers:  o pkg/ptracers:
671    - add capability of stepping a passive tracer forward    - add capability of stepping a passive tracer forward without advection
672      without advection by setting PTRACERS_advScheme to 0.      by setting PTRACERS_advScheme to 0.
673  o pkg/diagnostics:  o pkg/diagnostics:
674    - add few (threads) _BARRIER around any update of "diag_pkgStatus".    - add few (threads) _BARRIER around any update of "diag_pkgStatus".
675  o pkg/layers:  o pkg/layers:
# Line 244  o model/src & mom pkgs: Line 891  o model/src & mom pkgs:
891      just copy level Nr value to level Nr+1.      just copy level Nr value to level Nr+1.
892  o doc:  o doc:
893    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
894  o pkg/streamice:  o pkg/shelfice:
895    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
896      SHELFICE.h: move array shelficemass to init_varia, initialise      SHELFICE.h: move array shelficemass to init_varia, initialise
897      from array shelficemassinit, which is set in init_fixed and      from array shelficemassinit, which is set in init_fixed and

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