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revision 1.2170 by heimbach, Sun Jul 5 02:06:23 2015 UTC revision 1.2285 by jmc, Fri Dec 9 21:44:17 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/exf:
8      - change definition of "hflux" input file to always include Short-Wave;
9        this is now consistent with hflux computation (if using bulk-formulae)
10        and hflux diagnostic & documentation (in EXF_FIELDS.h).
11    
12    checkpoint66b (2016/12/01)
13    o model & momentum pkgs:
14      - implement fully implicit bottom friction combined with implicit surf.
15        pressure, for now, only in hydrostic formulation:
16        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
17          and run with selectImplicitDrag=2 ;
18        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
19      - partial implicit time-stepping (bot. friction + vert. visc first, then
20        surf. press) corresponding to selectImplicitDrag=1 should be applicable
21        to NH formulation but not available until we solve for surf. pressure
22        increment (instead of full etaN).
23      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
24        with implicit vertical viscosity.
25    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
26      - this is a first version that includes many regularisations that may
27        not all be necessary, to be sorted out,
28      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
29      - change one verification experiment in seaice_itd to use and test new code
30      - seaice_growth: catch a case where the argument of log can be zero
31        or smaller (important for code stability)
32    o model/src:
33      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
34        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
35        similar A.X'=Y' system (with same matrix A) in subsequent calls;
36        switch based on errCode (In/Out) argument value; in calling routines,
37        initialise errCode before first call.
38    
39    checkpoint66a (2016/10/18)
40    o pkg/bling:
41      - BLING package now loads in atmospheric pCO2 file using exf package routines
42        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
43    o model/src & pkg/ptracers:
44      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
45        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
46        implicitDiffusion (respectively) are used (even without momImplVertAdv
47        or temp,salt,PTRACERS_ImplVertAdv).
48    o model/src & generic_advdiff:
49      - add parenthesis in main diagonal calculation of implicit vertical
50        diffusion matrix (impldiff.F & gad_implicit_r.F).
51        This affects results at machine truncation level; update output of many
52        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
53    o pkg/mom_commom & generic_advdiff:
54      - add deep atmosphere and anelastic scaling factor in implicit vertical
55        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
56    o model/src:
57      - remove few unnecessary temp array copies in solve_tridiagonal.F
58        & solve_pentadiagonal.F
59    
60    checkpoint65z (2016/09/28)
61    o pkg/seaice: fix multithreading for seaice_fgmres.F
62      - remove unecessary variables from common blocks
63      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
64        basis, that are stored in commom blocks (including integer variable i1)
65      - clean up code a little by removing commented lines that refer to
66        original code
67      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
68    o MITgcm manual:
69      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
70        preliminary documentation for generic controls (8.3; ctrl.tex),
71        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
72        ecco_costfunction.tex
73    o pkg/ecco:
74      - update and cleanup list of CCP options
75      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
76        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
77      - add checks that retired run-time options are not used, and in relation
78        to gencost_mask and gencost_errfile
79      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
80        gencost_nrecperiod
81      - fix m_eta computation for virtual salt flux case
82      - add m_horflux_vol case (selected via gencost_barfile) that computes
83        transports via cost_gencost_boxmean (gencost_flag=-3)
84      - use gencost_flag more systematically (i.e., avoid using gencost_name)
85        for code switches (aside from physical variable selection)
86    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
87      attempt appears to be a bit of a hack and my need some repair down the road
88    o pkg/exf:
89      - interpolation near South Pole: fix criteria on input field latitude.
90    o pkg/icefront & pkg/exf:
91      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
92        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
93    o pkg/exf:
94      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
95        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
96        (add suffix "_out" instead of a prefix); keep same record number as in
97        input file but always write record 1 first (to avoid a STOP in I/O S/R).
98        Change output file content by writing interpolated field before applying
99        land-sea mask (helpful for debug).
100      - 2 compon. vector interpolation with rotation: apply scaling factor on
101        each compon. (Eastward and Northward) just before rotation.
102    o pkg/bling:
103      - Cleaned package. Removed not needed code and comments.
104      - adjoint example now works
105        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
106    o pkg/ptracers:
107      - add Bruno Deremble's code to complete the linear surface correction
108        for tracer conservation;
109      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
110    
111    checkpoint65y (2016/07/29)
112    o pkg/debug (stats):
113      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
114        proc/thread mapping);
115      - fix Min & Max for case where 1 thread has only empty tiles;
116      - use RL variable to count number of wet grid points (with big domain,
117        can be too large to fit into integer*4).
118    o pkg/monitor:
119      - use RL variable to count number of wet grid points (but used only for del2)
120      - add new routine to compute Advective CFL within tracer time-stepping with
121        writing delayed until next monitor output.
122    o pkg/obcs:
123      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
124    o pkg/cal:
125      - calandar-dump: treat case myTime < timePhase in the same way as in
126        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
127    o pkg/dic & seaice:
128      - fix compilation of ocean component for coupled atm+ocn model with
129        seaice dynamics & dic.
130    
131    checkpoint65x (2016/06/11)
132    o add a license text file in main MITgcm tree.
133    o added pkg/bling:
134      - intermediate complexity biogeochemical model
135      - see bling_description.txt for details
136      - verification experiment is global_oce_biogeo_bling (for now, in
137        Contrib/verification_other/); tested daily on baudelaire with gfortran.
138      - add entry point in pkg/gchem for new pkg "bling".
139    o pkg/seaice: fix tensile stength computation
140      - replace global field tensileStrength by tensileStrFac
141      - tensileStrFac can be computed once in S/R seaice_init_varia
142      - fortunately that does not affect any verification results
143    
144    checkpoint65w (2016/05/12)
145    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
146         with ECCO_CTRL_DEPRECATED defined
147    o verification/global_ocean.cs32x15:
148      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
149        with "selectNHfreeSurf=1".
150    o model/src (non-hydrostatic free-surface):
151      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
152        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
153      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
154        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
155        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
156        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
157      - Update output (changes at machine truncation level) of verification exp:
158        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
159        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
160    o pkg/seaice: ITD code
161      - fix picking up from a single category model by initialising
162        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
163      - split a long warning message in seaice_check_pickup.F into two lines,
164        because NEC SX-ACE cannot deal with the long line.
165    o model/src:
166      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
167    o pkg/seaice:
168      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
169    o pkg/seaice:
170      - add basal stress as parameterisation for grounding ice
171        following Lemieux et al. (2015)
172      - turn on by setting new parameter SEAICEbasalDragK2 to a value
173        larger than 0. Lemieux et al. (2015) recommend 15.
174      - The adjoint complains with extra recomputations so there is also a
175        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
176        order to postpone the problem
177      - compile the new code in lab_sea
178    o verification/halfpipe_streamice:
179      - update both TAF and OpenAD adm output (machine truncation differences)
180    
181    checkpoint65v (2016/04/08)
182    o verification/advect_xz:
183      - increase overlap size from 3 to 4 and add new secondary test for PQM
184        advection scheme (with mono & wino limiter).
185      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
186    o model/src:
187      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
188        added phi0Ref) to set vertical axis origin and phiRef origin;
189        keep Ro_SeaLevel for backward compatibility (with a warning).
190       According to coordinate and fluid type:
191        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
192        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
193        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
194        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
195      - remove Ro_SeaLevel from ATM experiment parameter files;
196      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
197        complement; update output.txt (changes at machine truncation level).
198    o pkg/seaice/seaice_evp.F
199      - simplify computation of deltaZ and zetaZ to simple averaging following
200        Bouillon et al. (2013). This removes a lot of code, but also changes
201        verification experiment lab_sea.hb87 -> updated
202    
203    checkpoint65u (2016/03/14)
204    o pkg/generic_advdiff:
205      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
206        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
207        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
208        testing and not for actual use.
209    o model/src:
210      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
211        origin r = rF(1);
212      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
213        in EOS for height coordinate: enable to include NH Pressure or to use
214        more accurate pressure vertical profile; options not linked to EOS type
215        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
216      - start to implement variable gravity (along vertical): for now, only with
217        z-coords (not even z*).
218      - add Ideal Gas equation of state for height coordinate.
219      - update OpenAD output (affected at machine truncation level) of exp:
220        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
221    o pkg/exf:
222      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
223        of exf interpolation (before any rescaling, rotation or interpolation
224        to velocity point) for each field that gets loaded from file. This option
225        identically mimics the input file organization (e.g. record numbers in year
226        by year input files) besides the change in horizontal grid.
227      - add rotateStressOnAgrid run-time switch so that wind stress fields
228        can be provided on the A-grid in zonal/meridional direction and
229        rotated on the fly. This only applies to the case when the exf
230        interpolation is off and rotateStressOnAgrid is false by default.
231    o model/src:
232      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
233        it's also used with pkg/atm_phys) and add few more parameters (but still
234        inactive, src code yet to come)
235    
236    checkpoint65t (2016/02/10)
237    o pkg/atm_phys:
238      - from Ruth Geen: add optical depth dependence on CO2 concentration.
239    o model/src:
240      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
241        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
242        Update output of exp. deep_anelastic (changes at truncation level).
243    o tools:
244      - add a hack in "remove_comments_sed" (used only with TAF) for recent
245        version of OpenMPI (shipped with FC.23): comment out the new header
246        file "mpif-sizeof.h" which causes problems to TAF.
247    o pkg/seaice:
248      - change the termination criterion so that maxits (SEAICElinearIterMax)
249        has an effect
250      - unify iteration parameters for implicit solvers (JFNK and Picard)
251        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
252        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
253        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
254        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
255        SEAICEnonLinTol     replaces JFNKgamma_nonlin
256      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
257      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
258        use with SEAICEuseKrylov
259    o pkg/seaice/seaice_lsr.F
260        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
261        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
262        an effect.
263    o pkg/seaice: add two new parameters
264      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
265        parameter is not in any namelist)
266      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
267        a preconditioner for the non-linear Newton iteration of the JFNK
268        solver
269    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
270      affects some experiments at truncation level:
271      - global_ocean.cs32x15.icedyn (11 digits),
272      - global_ocean.cs32x15.seaice (11 digits),
273      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
274      - also update global_ocean.cs32x15 adjoint and tangent-linear results
275    o pkg/salt_plume & pkg/thsice:
276      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
277        connect salt_plume flux to ATM-OCN coupling pkgs interface:
278       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
279         export to coupler interface) even without compiling pkg/salt_plume ;
280       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
281         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
282    o pkg/dic:
283      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
284        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
285        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
286      - move also update with values from ATM-OCN Coupler in the same new S/R
287        (previously done in ocn_apply_import.F).
288    o tools/adjoint_options:
289      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
290        has been changed on Jan 14, 2016.
291    o pkg/ggl90:
292      - add alternative discretisation of vertical shear (off by default), to
293        compute the mean (@ grid-cell center) of vertical shear compon instead of
294        vertical shear of mean flow (@ grid-cell center).
295      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
296        results on adjacent faces of cubed-sphere grids; this fix the restart.
297    o pkg/atm_compon_interf:
298      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
299        pass last value, stored directly before export to CPL ;
300        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
301      - remove atmSLPr from pickup files (no longer needed for restart)
302    
303    checkpoint65s (2016/01/13)
304    o eesupp & genmake2:
305       - first check for Function ETIME and, if it fails, then check for subroutine
306         ETIME and consistent output; use the appropriate version in timers.F
307    o model/src:
308      - to check restart test, add option to apply EXCH to U,V earlier, just before
309        integr_continuity; turned off by default.
310    o pkg/dic:
311      - remove CPP option USE_ATMOSCO2 (not needed)
312    o tools/tst_2+2:
313      - try to ignore difference between +0 and -0 in binary file, causing test
314        to fail for no good reason.
315    o eesupp & genmake2:
316      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
317        but also check (in genmake2) that test runs and returns meaningful results.
318    o coupler pkgs:
319      Finish implementation of optionally-exchanged variable switches (started on
320       Nov 12) with addition of few more exchanged fields, including 2-way exchange
321       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
322       advection in OCN component; this requires sequential coupling.
323      coupler (pkg/atm_ocn_coupler):
324      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
325        routines (useful for debug).
326      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
327         flux, DIC fields) if corresponding switch is ON.
328      - add option to export RunOff to OCN (to use for DIC river input)
329      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
330      components (pkg/atm_ & ocn_compon_interf):
331      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
332        optionally exchanged fields; add a check & stop in cpl_readparms.F.
333        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
334        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
335      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
336        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
337      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
338      - hold in common block coupler optionally-exchanged variable switch
339        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
340      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
341        this is intended to replace the OCN cplFldtave.* output files (not updated
342        to contain new additional exchanged fields).
343    o pkg/dic:
344      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
345    o pkg/thsice:
346      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
347        and writing of thsice pickup files.
348    o pkg/atm_compon_interf:
349      - move all field individual export-call out of cpl_export_import_data.F
350        into new S/R ATM_EXPORT_FIELDS
351    o pkg/atm_compon_interf:
352      - store state variables (for now, only thSIce fields) just before beeing
353        exported (in cpl_export_import_data.F, like on ocean side) instead of from
354        atm_store_my_data.F like all exported fluxes.
355      - new version of pickup_cpl: write field names into meta file and read meta
356        file to find field postion in pickup. Also only write/read fields meeded for
357        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
358    o pkg/dic:
359      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
360    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
361        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
362        value can be from domain [0,1] to average between the two methods
363    o pkg/atm_phys:
364      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
365        hold fixed in time).
366    
367    checkpoint65r (2015/12/21)
368    o pkg/seaice:
369        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
370        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
371    o pkg/seaice:
372      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
373        when SEAICEscaleSurfStress=.TRUE.,
374      - apply areaW and areaS in S/R seaice_calc_lhs
375    o pkg/atm_phys:
376      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
377        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
378        for individual contribution (convection, LSC cond, radiation)
379      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
380        information); activated with: solar_exponent=0. and wv_exponent=-1.
381    o pkg/ggl90:
382      - within IDEMIX add upper limit for horizontal group velocity to
383        avoid instability problems in the explicit horizontal diffusion term for
384        long time steps or high resolution
385    o pkg/diagnostics:
386      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
387        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
388    o testreport:
389      - remove "-v" (verbose option) in default mpirun command.
390    o pkg/seaice/seaice_growth:
391      - catch potential division by zero in ITD code, does not change
392        verification results
393    o pkg/ecco:
394      - retire old codes to the Attic. The calls to retired functions are
395        left in a commented form in case they ever need to be re-activated.
396      - ecco_check.F: issue warning if any old CPP option is
397        defined that corresponds to retired codes -- then stop.
398    o pkg/atm_compon_interf:
399      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
400        coupler: use last time-step value instead of average over cplSendFrq_iter
401        time-step, similar to what is done for seaIceMass.
402        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
403    o eesupp & genmake2:
404      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
405        <= remove until a fix is found for some ifort version on ia32 machine.
406    o pkg/seaice/seaice_evp:
407      - refine residual computation
408    
409    checkpoint65q (2015/11/18)
410    o pkg/seaice/seaice_evp:
411      - fix residual computations so that they no longer affect the actual
412        simulation code
413      - fix seaice_readparams to be able to actually set new parameters
414        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
415    o model/src:
416      - fix wrong truncation (single prec) from "FLOAT" function in expressions
417        like: deltaT*FLOAT(myIter) when myIter is large:
418         a) replaced by DFLOAT (if not seen by TAF);
419         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
420    o pkg/aim_v23:
421      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
422        when pickupSuff is set ; do write rolling pickups + at the end of the run.
423    o pkg/atm_ocn_coupler + ocn_compon_interf:
424      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
425        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
426        add corresponding call in DO_OCEANIC_PHYS.
427    o coupler pkgs:
428      Start a new way to set-up optionally-exchanged variables (previously, only
429       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
430       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
431       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
432       compononent param default can be set accordingly).
433      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
434       but rather applies to a group a fields (going both ways like for DIC)
435       and corresponds to an option of coupling config.
436      coupler (pkg/atm_ocn_coupler):
437      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
438        and read namelist directly (without eessup S/R calls) instead of
439        in the very un-flexible old way, 1 param per line, in fixed order;
440      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
441        cleanly in CPL_CHECK_CPLCONFIG
442      - add new coupling-exchange selectors (some not yet active) including
443        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
444                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
445      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
446        component ; called directly from coupler.F, after comp. registrations;
447      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
448         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
449          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
450      components (pkg/atm_ & ocn_compon_interf):
451      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
452        CPP header file in all pkg source files.
453      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
454        ATM/OCN_CHECK_CPLCONFIG;
455      - add error-counter to track errors (e.g., in "data.cpl") and to stop
456        cleanly in ATM/OCN_CHECK_CPLCONFIG;
457      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
458        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
459        before PACKAGES_READPARMS;
460      verification/cpl_aim+ocn/:
461      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
462        "data.cpl" for coupler (in input_cpl).
463    o eesupp/inc:
464      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
465        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
466        to always cumulate tile local-sum in the same order (still uses
467        MPI_Allreduce like standard code).
468      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
469        that are now identical to standard version (in eesupp/inc).
470    o pkg/shelfice:
471      - add SHELFICETransCoeffTFile for initializing spatially varying
472        heat and salt transfer coefficients
473    o pkg/atm_compon_interf & ocn_compon_interf:
474      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
475        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
476      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
477    o pkg/atm_ocn_coupler:
478      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
479    o pkg/rbcs:
480      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
481        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
482      - add a short report (to STDOUT) about RBCS-mask settings.
483    
484    checkpoint65p (2015/10/23)
485    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
486        there is no adjoint test for EVP, we don't know what it does to the adjoint
487        solution, but at least there are no more recomputation warnings left
488    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
489        a chance of giving the same results as a fully converged VP (JFNK) solver
490    o tools/adjoint_options/adjoint_diva:
491      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
492    o pkg/streamice:
493      - spotted bug in streamice_driving_stress using dyG where should have been dxG
494    o pkg/exf:
495      - remove STOP statement that prevented to use wind or (wind-)stress
496        interpolation for constant-in-time forcing fields (wind/stress period = 0).
497    o pkg/seaice:
498      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
499        5 additionals 2D fields and 6 new store directives
500      - change logic in seaice_readparms.F: EVP code can now be turned on in
501        various ways, setting SEAICE_deltaTev is no longer required,
502        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
503        or SEAICEaEVPcoeff
504    o pkg/shelfice/shelfice_thermodynamics.F
505      - redefining uLoc/vLoc to u/v, instead of 2u/v
506    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
507      - this is an intermediate state of a truely converging EVP that has
508        the potential of outperforming implicit VP methods, I do not recommend
509        using it yet.
510      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
511        and all parameters are hardwired
512      - for convergence it still requires very smooth regularisations, that means,
513        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
514        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
515        specific averaging appears to be required, still subject to tuning
516      - still needs cleaning and I need to turn parameter into runtime parameters
517      - add code to compute and print residuals of iteration, compile with
518        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
519    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
520      that entered with r1.54 on Sep04, 2015, -> update results
521    
522    checkpoint65o (2015/09/14)
523    o pkg/mom_vecinv & mom_common:
524      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
525        called from there.
526      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
527        allows to use Vector-Invariant form in deep atmos and anelastic formulation
528    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
529      and Koenig-Beatty+Holland (2012)
530      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
531      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
532      - requires an extra input argument for S/R seaice_calc_viscosities
533      - tensileStrength's depth dependence is different from Itkin et al. (2015)
534        (to be changed and played with, for now exponential)
535    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
536      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
537        by AREA according to Connelly et al. (2004), JPO.
538      - For EVP and the LSR solver, the implicit part of the drag term is
539        the only non-zero term in the denominator when there is no ice (which
540        prevented running the model with zero ice-ocean drag). If
541        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
542        (or zero main diagonals BU/BV) which need to be caught. A practical
543        consequence is that for open water, the momentum equation reduce
544        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
545        they happen to be zero, often leading to a non-zero solution over
546        open water.
547    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
548        efficient EVP method.
549      - introduce area-weighted averages for e12 (analogously to
550        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
551        remain, but also changing the order of terms in the previous average
552        changed the results as much) -> update experiment
553      - add SEAICE_DELTA_SMOOTHREG code
554      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
555        TEM-code
556      - adjust loop bounds so that only required fields are computed
557      - add new averaging code for zetaZ/deltaZ (again similar to
558        seaice_calc_viscosities.F), inactive by default for now (will change
559        results again), but will replace old code eventually
560    o eesupp/src:
561      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
562        to always cumulate tile local-sum in the same order
563        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
564        Still uses MPI_Allreduce (like standard code) but on array of tiles
565        and should be faster than GLOBAL_SUM_SEND_RECV code.
566      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
567        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
568      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
569         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
570         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
571         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
572         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
573    
574    checkpoint65n (2015/07/29)
575    o pkg/thsice:
576      - add a warning when used with pkg/aim but without updating SST
577        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
578    o pkg/offline:
579      - change where Offline-Fields are loaded, from load_fields_driver.F to
580        directly within FORWARD_STEP, just after updating iter number and time;
581      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
582        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
583       These changes allow:
584        a) to recover exactly on-line results using deltaToffline=deltaTClock,
585        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
586        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
587        time-step, both with GM & KPP files and with recomputing these fields;
588        b) no needs to switch on staggerTimeStep anymore;
589        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
590      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
591    o pkg/offline:
592      - change (rarely used) offset-iteration parameter to an offset time (in s):
593        can easily recover previous offset-iter effect by setting offset-time
594        (offlineTimeOffset) to offset-iter x deltaToffline;
595      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
596        in KPP as part of surface buoyancy forcing) in offline run.
597      - fix ptracers KPP non-local term in the case where KPP is re-computed.
598  o OpenAD  o OpenAD
599   - Adding preliminary ggl90 test to OpenAD verification.    - Adding preliminary ggl90 test to OpenAD verification.
600     Config. with ggl90 currently diverges after 64 time steps      Config. with ggl90 currently diverges after 64 time steps
601     so will need more work to become more stable      so will need more work to become more stable
602   - Adding preliminary kpp test to OpenAD verification.    - Adding preliminary kpp test to OpenAD verification.
603     required small tweakes in kpp_routines.F      required small tweakes in kpp_routines.F
604   - Merge and update from Krishna Narayanan's contrib area:    - Merge and update from Krishna Narayanan's contrib area:
605     * Add one variable for preliminary OpenAD DIVA      * Add one variable for preliminary OpenAD DIVA
606     * Add replacement time-stepping for OpenAD DIVA      * Add replacement time-stepping for OpenAD DIVA
607     * genmake2 flag -diva (but only for OpenAD; preliminary)      * genmake2 flag -diva (but only for OpenAD; preliminary)
608     * required modifs for OAD_support      * required modifs for OAD_support
609     successful preliminary test for tutorial_global_oce_biogeo/      successful preliminary test for tutorial_global_oce_biogeo/
610    o pkg/seaice:
611      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
612      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
613        delta with a smooth function in s/r seaice_calc_viscosity
614        (no effect on EVP)
615      - rename local suffix "sqr" into "sq" for more consistent variable names
616  o pkg/seaice:  o pkg/seaice:
617   - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr      add new parameter SEAICE_deltaMin that is used ***only***
618   - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising      for regularizing Delta (and nothing else, like the parameter
619     delta with a smooth function in s/r seaice_calc_viscosity      which is also used for all sorts of things SEAICE_EPS).
620     (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.  
621  o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with  o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
622    the wrong key by inialising it before use -> fixes a recomputation      the wrong key by inialising it before use -> fixes a recomputation
623    problem but does not fix the gradient      problem but does not fix the gradient
624  o pkg/layers:  o pkg/layers:
625    - move resetting of flux arrays to outside the iLa loop    - move resetting of flux arrays to outside the iLa loop
626      (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 632  o pkg/seaice:
632    - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it    - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
633      in lab_sea forward experiment (changes results -> updated)      in lab_sea forward experiment (changes results -> updated)
634    - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v    - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
635  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
636    computations; for SEAICE_VECTORIZE_LSR     computations; for SEAICE_VECTORIZE_LSR
637    - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)    - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
638      sweep to the outside,      sweep to the outside,
639    - 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 899  o model/src & mom pkgs:
899      just copy level Nr value to level Nr+1.      just copy level Nr value to level Nr+1.
900  o doc:  o doc:
901    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
902  o pkg/streamice:  o pkg/shelfice:
903    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
904      SHELFICE.h: move array shelficemass to init_varia, initialise      SHELFICE.h: move array shelficemass to init_varia, initialise
905      from array shelficemassinit, which is set in init_fixed and      from array shelficemassinit, which is set in init_fixed and

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