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revision 1.1537 by mlosch, Tue Nov 29 10:56:03 2011 UTC revision 1.1722 by jmc, Wed Aug 22 22:57:06 2012 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/src:
8      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
9        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
10        this prevents getting cost-funct reset in adinitialise_varia recomputations.
11    o pkg/dic:
12      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
13        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
14    o pkg/grdchk:
15      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
16      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
17    o pkg/autodiff/ctrl/grdchk :
18      - attempt to sort out what works and what does not,
19        with regard to I/O, and to warn/stop accordingly.
20    o pkg/grdchk:
21      - attempt to fix grdchk in the case of useSingleCpuIO.
22      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
23       statements were moved from grdchk_main.F and into
24       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
25      - a global sum is applied to record numbers icvrec/layer
26       out of grdchk_loc so that they be passed to I/O routines.
27    o pkg/smooth:
28      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
29        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
30    o verification/testreport:
31      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
32      - can also use compressed (gzip) reference output file;
33      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
34        to be easier to collect by testreport.
35      - update existing TLM output (half out-of-date by more than 3 yrs).
36      - report NETCDF & LAPACK settings (from genmake2) in output dir.
37      - report run-time in each individual summary (previously only for AD test);
38        for TLM test, add also TAF version.
39      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
40    
41    checkpoint63r (2012/08/15)
42    o tools/genmake2:
43      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
44    o pkg/ecco/ecco_cost_final.F :
45      - fix fc print statements (to stdout and costfunction0000) so
46        that the printed value is always after the global sum.
47    o pkg/seaice/seaice_dynsolver.F :
48      - fix ice strength assymptote at SEAICE_area_max<1
49        (no change for the standard case of SEAICE_area_max=1)
50    o some cleaning:
51      - pkg source files: ensure that all *.F files from each pkg included the
52        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
53        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
54        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
55        includes;
56      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
57      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
58        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
59        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
60      - update option-file CPP_OPTIONS.h of all AD experiments:
61        * no longer include PACKAGES_CONFIG.h ;
62        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
63        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
64          including ECCO_CPPOPTIONS.h).
65    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
66      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
67        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
68        not necessary accurate).
69      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
70        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
71        deliberately break compilation (a remainder that it needs to be customized)
72      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
73      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
74      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
75    o tools/genamke2:
76      - check for lapack.
77    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
78      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
79        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
80        from both packages.
81      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
82      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
83      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
84        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
85    o pkg/cost : add comments to explain special and/or untested setups.
86    o pkg/exf:
87      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
88        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
89    o verification/*/code_ad:
90      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
91      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
92      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
93        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
94    o pkg/seaice :
95      - added possibility to change ice strength/PRESS0 relationship to
96        HEFF, according to the following run time parameters
97        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
98        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
99        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
100    o pkg/ggl90 :
101      - added run time flag mxlSurfFlag to include the code that ensure
102        mixing between first and second level (previously included as a comment)
103    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
104      - add test of newly added dumpAdByRec=T option where
105        we write all records to one file per variable.
106    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
107      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
108        to check that this code is ok with taf and compiles in adjoint.
109    o pkg/autodiff :
110      - added run time param dumpAdByRec : ad dump format switch.
111        If true then write all records to one file per variable.
112        Else write one file per record (remains the default).
113      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
114    o pkg/seaice:
115     - Added SEAICEuseTILT run time switch : if set to
116       false then omit the tilt term in seaice dynamics.
117     - Fix free drift calculation.
118    o pkg/shelfice:
119      When initializing SHELFICEDragQuadratic, set default to be
120      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
121      but retain option to set it independently
122      (inconsistenty spotted by Veronique Dansereau)
123    o eesupp/inc:
124      - in EEPARAMS.h, add real-type constant for some frequently used simple number
125         (0,1,2,1/2), with name explicitly referring to RS/RL type.
126    o model/src:
127      - move balancing of relaxation terms to new S/R balance_relax.F.
128    o pkg/autodiff:
129      re-write active I/O high-level (control) S/R:
130      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
131      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
132      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
133        MDS_READ/WRITE_FIELD); change loops to multi-threads.
134      - update and merge active_file_control_slice.flow into active_file_control.flow
135      - update the calls in lower level S/R (active_file.F, active_file_g.F and
136        active_file_ad.F) keeping the argument list and function unchanged.
137      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
138        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
139      - new low-level active I/O routines, one for each type (RL/RS), for active var
140        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
141        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
142        right type.
143    o autodiff and RS=real*4:
144      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
145        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
146      - change argument type of 3-D mask argument to _RS to match type in the call
147        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
148    o pkg/thsice:
149      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
150      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
151        fresh-water flux: uniform correction or proportional to local precip.
152    o pkg/ctrl:
153      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
154      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
155                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
156      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
157    
158    checkpoint63q (2012/07/30)
159    o pkg/autodiff:
160      note about monitor and snap-shot of ad-variables:
161      a) need to apply ADEXCH before monitor or output of ad-vars to include
162       overlap contributions (was done for adjDump but missing for monitor).
163      b) since ADEXCH implies adding overlap values to interior array, machine
164       truncation error is expected when adding an ADEXCH call in the middle of
165       the time-stepping (although mathematically identical).
166      modifs:
167      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
168        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
169      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
170        apply ADEXCH before monitor or snap-shot of ad-variables:
171           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
172      - implement new method (copy+adexch) for snap-shot and monitor of main model
173        ad-vars (initially not used by default -> output unchanged).
174      - change default (set to 2) to use new method and update few output_adm.txt
175        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
176        and both tutorial_tracer_adjsens tests).
177      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
178        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
179    o pkg/ctrl:
180      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
181      generic control variables via
182      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
183      Only required customization should be S/R ctrl_map_ini_genarr.F
184      (routine in repository contains example)
185    o pkg/exf:
186      - fix and refine checking of surface-relaxation setting when using EXF
187    o verification (adjoint exp):
188      - reduce length of simulation by half for experiment global_ocean.cs32x15
189        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
190    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
191      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
192        of KE that can occur with aggressive optimization
193      + put quadratic bottom drag calculation in separated loops (only done if
194        using bottomDragQuadratic)
195    o model/src: CG2D_NSA
196      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
197         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
198      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
199         change cg2d residual target to be expressed in Wunits (=> do not normalise
200         RHS ; this fix global_max Pb with TAF); update output.
201    o verification/tutorial_tracer_adjsens:
202       improve parameter consistency (and get rid of warnings):
203       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
204       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
205       - use staggerTimeStep (for stability) in som81; use default rotation period.
206    o pkg/exch2:
207      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
208        reset to 0 = 1 long line in X)
209    o pkg/mdsio:
210      - fix reading of dimensions from meta file for large-size domain
211    o model/src:
212      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
213      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
214        Cubed-Sphere Exch with CS-corners inside the domain;
215        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
216        globalArea and to set hasWetCSCorners.
217      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
218        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
219      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
220        useCDscheme and useCubedSphereExchange).
221    o pkg/seaice/seaice_growth.F :
222      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
223        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
224        when the previous code was not correct.
225      - in all cases diagnoze the boundary condition mismatch to SIaaflux
226      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
227        that term to QNET (essentially to set the melt/freeze water to 0degC).
228        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
229    o verification/global_ocean.cs32x15/input.seaice :
230      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
231      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
232      - update results (output.seaice.txt) accordingly.
233    o verification/lab_sea/input/data.seaice :
234      - remove SEAICEheatConsFix, which is now be tested
235        in global_ocean.cs32x15. The presently coded fix
236        is only consistent with real fresh water + nlfs.
237      - update results (output.txt) accordingly.
238    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
239    o AD_CONFIG.h file:
240      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
241      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
242        add it explicitly in each fortran src file where it is needed.
243        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
244        thus introducing potentially wrong dependency; therefore, better to include
245        it only where it's really needed, and after any other included OPTIONS file
246        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
247        or ALLOW_TANGENTLINEAR_RUN).
248    
249    checkpoint63p (2012/07/06)
250    o pkg/autodiff:
251      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
252      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
253        which are now read from new parameter file "data.autodiff" (inAdExact
254        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
255      - add file "data.autodiff" in all verification/*/input_ad/ directories.
256      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
257        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
258    o verification/tutorial_tracer_adjsens/
259      - add extra sub-verification which uses "SOM" advection scheme
260        (2nd Order-Moment Advection Scheme, Prather Limiter) with
261          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
262        and in data:
263          multiDimAdvection=.TRUE.,
264          tempAdvScheme=81,
265          saltAdvScheme=81,
266    o model/src:
267      - introduce ALLOW_BALANCE_RELAX which allow the removal
268       of the global mean of relaxation terms by setting
269       balanceThetaClimRelax and balanceSaltClimRelax
270      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
271       This case is now treated appropriately in seaice_growth.F
272    o pkg/seaice:
273      - do balanceEmPmR and balanceQnet based on the net fluxes
274        (SItflux) that enter the ocean+ice system rather than QNET
275        and EMPMR. Works best in real fresh water.
276      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
277        out of the diagnotics bloc, and stored in global arrays.
278    
279    checkpoint63o (2012/06/29)
280    o vertical mixing schemes:
281      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
282      - replace computation of density (in Function STATE1, opps_calc.F) by a call
283        to S/R FIND_RHO_SCALAR
284      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
285        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
286        affects output (vermix.ggl90) at truncation level.
287    o testreport:
288      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
289        (nSx,nSy) for the number of threads (from eedata.mth)
290    o model/src:
291      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
292        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
293    o verification/tutorial_tracer_adjsens/
294      - compile with ALLOW_CG2D_NSA
295      - run with nonlinFreeSurf=3
296      - update reference output_adm.txt
297    o tools/genmake2:
298      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
299        refine usePROFILES switching off (only when NetCDF is not available).
300    o verification (atmospheric set-up):
301      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
302    o pkg/profiles : refine profiles and files handling.
303    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
304    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
305      - changes to use model/src/the_main_loop.F rather than the ecco version
306        in ecco type adjoint runs.
307    o model/src:
308      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
309      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
310      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
311    o model/src:
312      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
313        update output of test experiment bottom_ctrl_5x5.
314    o pkg/generic_advdiff:
315      - implement vertical bi-harmonic diffusion (for now, only for T & S and
316        only explicitly).
317    o verification/bottom_ctrl_5x5/
318      update reference output (results changed quite some time ago,
319      not sure when; but new reference results look ok in terms of grdchk)
320    o verification/1D_ocean_ice_column/
321      For verification purposes, the exact adjoint rather than an approx.
322      should be used (e.g., to comare against F.D. or TLM).
323      removed autodiff_inadmode*_ad.F routines in code_ad/
324      Update results/ accordingly.
325    o pkg/cal:
326      - change cal_getdate.F so that output date is function of input time only
327        (less ambiguous, not mixed up with input iteration number).
328      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
329    o pkg/diagnostics:
330      - implement calendarDumps also for stats-diags
331      - implement calendarDumps also for snap-shot output (negative freq)
332      - for now, ignores calendarDumps if non-zero phase-lag.
333    
334    checkpoint63n (2012/06/04)
335    o model/src:
336      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
337        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
338      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
339        similar to calc_r_star.F); update results of experiment internal_wave and
340        tutorial_global_oce_in_p (affected @ truncation level).
341    o pkg/shelfice:
342      - add parameterisation of advective-diffusive flux into the ice shelf
343        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
344      - simply eps3/3a computation
345    o eesupp:
346     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
347       between tiles, just fill-in edges assuming locally periodic subdomain) and
348       add corresponding exchange subroutines (EXCH0);
349     - new CG-solver version (_EX0) for disconnected-tiles special case.
350    o model/src (CG-solvers):
351     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
352       (similar final residual output and max-Iter number as with standard version);
353     - allows to store and use lowest-residual solution (standard & _SR versions);
354     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
355     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
356    o eesup/src:
357     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
358       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
359    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
360    
361    checkpoint63m (2012/04/27)
362    o pkg/shelfice:
363     - account for partical cells in surface level below ice-shelf for hydrostatic
364       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
365    o ad test experiments:
366     - update and rename to "ad_optfile.local" local AD-optfile specific to a
367       particular adjoint verification experiment (in verification/*/code_ad/)
368    o pkg/seaice & pkg/exf:
369     - Part two of ECCO-CLIVAR code merges.
370       Completes merge of seaice area relax. code.
371       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
372       to be set in EXF_OPTIONS.h since this pkg controls its I/O
373       (and avoids second CPP option in SEAICE_OPTIONS.h)
374     - change default value of costIceStart & costIceEnd to a valid date.
375     - add snowPrecip to HSNOW in seaice_growth
376    o pkg/ptracers:
377     - move ptracers summary and setup check into separated S/R ; add a check for
378       valid PTRACERS_Iter0 value (error+stop or just warning).
379    o pkg/cal (+ pkg/ecco):
380     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
381       as input; and for AD, unless both are not differentiable (e.g., k index)).
382    o model/src:
383     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
384       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
385       temporary set to usingZCoords value (to be changed to F when using shelfice).
386     - hydrostatic pressure: implement partial cell near the surface also for
387       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
388       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
389    o pkg/ctrl/ctrl_init.F:
390     - add a formal parameter to s/r ctrl_init_rec to print
391       xx_$(ctrl_valiable)_file for easier debugging
392     - move call of cal_* routines into the if-block where they are really
393       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
394       to specify a startdate
395    o pkg/seaice:
396     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
397       global_ocean.cs32x15/code versions).
398     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
399       verification experiment global_ocean.cs32x15.seaice and update results.
400    o pkg/exf:
401     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
402       (according to useExfYearlyFields).
403    o pkg/cal:
404     - move calendar setting & summary (previously in cal_readparams.F) into new
405       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
406       length of the simulation is set (after SET_PARMS call); This is an attempt
407       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
408     - For safety: keep a record of pkg/cal parameter settings status
409               to allow to STOP if one pkg/cal S/R is called too early.
410     - add a stop in all basic pkg/cal subroutines if called before setting is done.
411     - modify cal_getdate.F: stop when nothing was returned;
412       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
413       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
414    
415    checkpoint63l (2012/04/04)
416    o pkg/bbl:
417      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
418        update global_with_exf output.yearly.txt file.
419    o pkg/cal:
420      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
421      - remove 2 unsused and very short (1 line only) functions ;
422      - remove unsused subroutines from AD-Diff list.
423    o model/src:
424      - start to implement clean wait to stop in initialization S/R (config_check.F,
425         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
426    o folowing PRINT_MESSAGE changes:
427      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
428    o pkg/bbl:
429      - modification so it can work with z*
430      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
431      - global_with_exf/input.yearly verification; changes output.yearly.txt
432    o eesupp/src:
433      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
434        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
435      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
436        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
437      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
438      - when using MPI, always set usingMPI=T ; set default accordingly and stop
439        if not consistent.
440      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
441        argument is zero (in case called within single-thread section).
442    o pkg/fizhi:
443        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
444        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
445    o pkg/exch2:
446      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
447        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
448      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
449        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
450        with bad ones coming from a not-yet-updated halo.
451        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
452    o pkg/frazil:
453        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
454        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
455    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
456    o verification/lab_sea
457      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
458      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
459      * nTimeSteps 3 -> 4
460      * changed reference output accordingly
461    o pkg/ctrl:
462      * fix ctrl_get_gen for xx_sst, xx_sss
463    o pkg/fizhi:
464      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
465        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
466      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
467        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
468        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
469    o pkg/gmredi:
470      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
471    o pkg/fizhi:
472      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
473        (old)aces open64 tuv test.
474    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
475    o pkg/mom_vecinv:
476      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
477        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
478        with non-lin free-surf).
479    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
480      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
481      some compilers (gfortran 4.6.0 on MacOS)
482    o momentum:
483      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
484        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
485        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
486    
487    checkpoint63k (2012/03/17)
488    o model/src:
489       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
490         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
491       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
492         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
493    o model/src: solve_*diagonal.F
494       - replace division with multiplication by inverse (similar to original version)
495         update output of AD exp. global_ocean.90x40x15.
496       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
497         to enable the use of the vectorized & differentiable solve_tridiagonal.F
498       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
499         vertical advection (to get solve_tridiagonal tested in AD mode).
500    o pkg/seaice: ECCO-CLIVAR merge:
501      1. seaice AREA relaxation
502         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
503         * runtime flag: SEAICE_tauAreaObsRelax
504      2. modified global mean cost imbalance code: CPP option
505          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
506    o another iteration on solve_*diagonal.F
507       Make choices independent of AUTODIFF
508       Default will be the adjoinable vectorized version.
509       Alternative choices are:
510       * non-adjoinable original version with low memory footprint:
511         #define SOLVE_DIAGONAL_LOWMEMORY
512       * still adjoinable but does not vectorize (k as inner-most loop):
513         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
514    o testreport
515     - add option to use a home made wrapper around "make"
516     - remove MITGCM_IEEE env. variable (no longer active)
517    o pkg/shelfice
518     - improve computation of friction velocity for velocity dependent
519       exchange coefficients: include velocities into SHELFICEBoundaryLayer
520       block to average velocities vertically
521     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
522    o Modify diagonal solvers, now three versions (upon request):
523      #ifndef SOLVE_DIAGONAL_AUTODIFF
524        1. default version (dating back a while ago)
525      #else /* def SOLVE_DIAGONAL_AUTODIFF */
526      # ifdef SOLVE_DIAGONAL_KINNER
527        2. adjoinable version with k-innermost loop (G. Forget)
528      # else
529        3. adjoinable vectorized version of 2.
530      # endif
531      #endif /* SOLVE_DIAGONAL_AUTODIFF */
532      All flags are currently set within routines, but could/should be moved to CPP-options.
533      Array bounds for 1. are as before, for 2.,3. cover the entire domain
534      (could be changed for 1. too).
535    o verification/lab_sea (fwd):
536      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
537        use 7 categories (except hb87), new solve4temp params (except salt_plume),
538        constant salinity (=4) or variable salinity (salt_plume) done through
539        SItracer.
540    o pkg/seaice:
541      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
542      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
543         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
544        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
545        SEAICE_freeze got retired) but already better than previously with
546        SEAICE_freeze=123456.7 deg.C;
547      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
548        (safer multi-threaded setting); always set SEAICEuseEVP;
549      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
550        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
551        stop if multiple specifications for the same coeff; make sure default
552        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
553    o pkg/obcs:
554      - allow to switch to upwind 1rst order advection scheme for the advective
555        flux computation at the open-boundary; disabled for adjoint built.
556    o pkg/ptracers:
557      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
558      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
559      - add parameter to decide when to start a tracer; use internal flag to
560        know which tracer to step-forward; switch this internal flag at the top
561        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
562        for adjoint built.
563    o pkg/seaice:
564      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
565      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
566      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
567    o pkg/ecco:
568      - fix writing of output file DiagnosCost_ClimSalt/Theta
569        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
570    o pkg/seaice:
571      - add missing initialisation of COR_ICE array in dynsolver.F
572      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
573        compiled either way, and is tested in all exps (multidim was only tested
574        in lab_sea ad before).
575      - cosmetic change to prepare for future addition of ITD. no change to results.
576        no defaults change.
577      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
578      - by lack of adequate verification experiments, I further used custom versions
579        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
580        should be correct.
581      - avoid recomputations in ad.
582    o array initialisation in adjoint mode:
583      1) pkg/mom_common/mom_calc_ke.F:
584        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
585        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
586        part this initialisation is gone, resulting in Floating Point Exception
587        (caught by open64 compiler with debug option).
588      2) model/src/convective_weights.F
589        set output convectCount over the full array range (instead of doing
590        an update): this fix a similar issue when called within recomputation (adjoint)
591        which could by-pass the initialisation (normally done in the caller S/R).
592    o pkg/seaice:
593      - final version of turbulent flux params, as agreed at MIT ice meet:
594           SEAICE_mcPheePiston (default is ~ 0.000875)
595           SEAICE_mcPheeTaper (default is 0.)
596           SEAICE_frazilFrac (defualt is 1.)
597           SEAICE_mcPheeStepFunc (default is false)
598      - changes results at trunction error level
599      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
600    o added pkg/frazil:
601      - see frazil_description.tex for details
602      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
603    o pkg/shelfice/shelfice_thermodynamics.F
604      - fix exponents for velocity dependent exchange coefficients: change
605        from 2/3(=0) to 0.66666666666666667
606      - move computation of velocity dependent exchange coefficients into
607        separate loop, so that it applies to both thermodynamics
608      - move some divisions by constants out of loops
609    
610    checkpoint63j (2012/02/16)
611    o pkg/seaice:
612      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
613      - SItracer:  added run time params, and allow coupling to ocn salinity.
614    o pkg/seaice: remove (almost) all divisions by constants within loops
615      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
616      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
617      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
618      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
619    o pkg/seaice :
620      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
621        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
622      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
623      - add permanent SItflux diag that corresponds to TFLUX but includes
624        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
625      - allow activation/testing of a fix for suspected missing term in
626        ocn-ice heat budget (to be confirmed). To test this, you want to
627        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
628        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
629      - no change in results, fwd or ad.
630    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
631      - switch to variable freezing point.
632           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
633      - bug fix : the sublimation term that was missing is now activated.
634           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
635      - bug fix : flooding sign term for SIsal0.NE.0.
636           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
637    o pkg/seaice:
638      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
639        is now the default, and the old default constant freezing point is recovered
640        with SEAICE_tempFrz0    = -1.96,
641             SEAICE_dTempFrz_dS = 0.,
642      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
643      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
644      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
645        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
646      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
647        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
648      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
649        seaice_growth r149 for legacy branch (no results change).
650      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
651        from I. Fenty).
652      - results did not change except for global_ocean.cs32x15, mostly due to the
653        switch to variable freezing point (see above item for detail).
654    o pkg/thsice:
655      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
656        seawater freezing in thsice_calc_thickn (not used).
657    o pkg/seaice: turbulent flux term specification via run time params.
658      - replace CPP switches with run time switches to facilitate testing
659      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
660                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
661      - added runtime parameter : SEAICEturbFluxFormula
662      - move Mcphee constants to SEAICE_PARAMS.h
663      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
664                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
665                 remove seaice_summary call (moved to seaice_init_fixed)
666      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
667        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
668      - seaice_summary.F : add missing report of read turbulent flux term set up
669                           and SITRACER.
670      - seaice_check.F : check range; inform and stop if retired CPPs are used
671                         (incl. SEAICE_AGE).
672      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
673             CPP switch, same computation as before for the different options.
674      - change results at the truncation level.
675    o pkg/seaice:
676      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
677        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
678        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
679      - update verification/*/input*/data.seaice:
680        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
681        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
682        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
683        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
684    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
685      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
686        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
687        difference in results only due to machine truncation.
688      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
689        MaykutPolySatVap; keep MIN_LWDOWN.
690      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
691      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
692        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
693    o pkg/salt_plume:
694      - isolate saltPlumeFlux array exch into a specific S/R called from
695        do_oceanic_phys.F
696      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
697    o verification:
698      - move untested set-up to MITgcm_contrib/verification_other.
699    o pkg/seaice:
700      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
701    o pkg/seaice:
702      - seaice_solve4temp.F (keeping results unchanged):
703        * add 2 future run-time params to select which saturation vapor pressure
704          formula is used and how post-iteration fluxes are set.
705          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
706        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
707          the linearized expression to stay consistent with tsurf finding.
708      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
709        can be < 0.
710    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
711      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
712        conductive heat flux F_c , and add it explicitly when updating tsurf as
713        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
714        so that now F_ia has a consistent meaning through the entire routine.
715        This causes differences at truncation level: update output of fwd exp.
716        global_ocean.cs32x15.seaice.
717    o pkg/seaice:
718      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
719        of arrays, sign/direction of fluxes; no effect on results.
720      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
721        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
722        note: this should have been done before changing celsius2K default.
723      - to keep results unchanged, add back old value of celsius2K in verification
724        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
725      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
726        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
727        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
728        freezing temp is consistent with value in seaice_growth.F ; this causes
729        differences at machine truncation level: update lab_sea AD output (3/4).
730    o pkg/seaice:
731      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
732        and climsst/sss even when using seaice (to prevent calculation that might
733        use SST on land); does not affect any verification exp.
734      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
735        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
736    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
737      over land (non-legacy code)
738    o vectorize salt_plume package:
739      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
740      - this code computes plumebk everywhere (also over land), thus requires
741        code to avoid divisions by zero and catch the case of kLev=Nr.
742      - efficiency of salt_plume_frac is still sub-optimal
743    o tools (genmake2):
744      - fix makefile NAME specification (option: -makefile NAME) by adding
745        "-f $MAKEFILE" in few places where it was missing including makedepend
746        command (contribution from Paul).
747    
748    checkpoint63i (2012/01/24)
749    o model/src:
750      - add factorized versions of some EOS code to find_rho.F,
751        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
752    o model/src:
753      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
754      - change default celsius2K from 273.16 to 273.15
755      - to keep results unchanged, add back old value of celsius2K in verification
756        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
757         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
758    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
759      to make TAF generate vectorizable code
760    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
761       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
762       have flags that do this more efficiently.
763    o pkg/diagnostics/diagstats_calc.F
764      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
765    o pkg/obcs (with exch2):
766      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
767        and remove code (in obcs_readparms.F) which was based on EXCH of indices
768        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
769    o pkg/exf and seaice exp:
770      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
771        so that switching off area & heff advection flags does not affect results.
772      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
773      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
774        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
775        results of verification experiments: 1D_ocean_ice_column(fwd),
776        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
777        and offline_exf_seaice (all 4).
778    o pkg/seaice:
779      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
780        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
781      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
782        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
783        not multi-dim advection;
784      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
785        SHORTWAVE_HEATING #undef.
786    o optim: make Makefile more robust (?)
787    o pkg/obcs:
788      * fix treatment of obcs_read_pickup for TAF
789    o pkg/shelfice:
790      * add missing initialisation of num_shifwflx
791      * new adjoint verification exp. for isomip
792      * change Prandtl and Schmidt numbers from generic formulations
793        (in terms of model diffus. and visc.) to separate runtime
794        parameters, with Holland and Jenkins (1999) default values.
795    o pkg/exf (interpolation):
796      - extended input field (2 rows) near the N & S poles:
797        * fill in with the symetric value (when even Nb of data in longitude)
798        * add average value at the poles only for scalar quantities ; for vector
799          component interpolation, skip the averaging and keep duplicated values,
800          unless the 2 components have same location (uvInterp=T) in which case
801          interpolate the 2 components together using S/R EXF_INTERP_UV.
802      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
803        together: this allows to account properly for local orientation when
804        averaging at N & S pole.
805      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
806        exf-interpolation near N & S poles. Undef by default.
807      - add debug check/print on 1rst iter if debugLevel >=2.
808    o pkg/exf:
809      - change masking flags definition (no longer "parameter"), put them in
810        common block and set them in S/R EXF_INIT_FIXED.
811      - change recognized masking flag from s,u,v to c,w,s since the mask
812        to use (maskC,W,S) depends on position on model grid and has little to
813        do with scalar/vector difference; fix masking if using P-coordinates.
814      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
815        and update results of exp. global_with_exf (x2).
816      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
817    o pkg/obcs
818      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
819    o pkg/exf (interpolation):
820      - assume periodicity in X only if input field cover full longitude range.
821      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
822        and should vectorise).
823      - fix input lat of the 2 added row (in case we provide N.pole data).
824    
825    checkpoint63h (2011/12/30)
826    o pkg/seaice:
827      - change declaration of UVM from _RL to _RS in order to get B-grid
828        uIce,vIce monitor when _RS = real*4
829    o pkg/offline:
830      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
831      - compute vertical velocity if not read from file (switch on exactConserv
832        & staggerTimeStep);
833      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
834    o verification:
835      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
836        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
837        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
838      - update output of exp. global_ocean.cs32x15.viscA4 after changing
839        grid-file angles (used here for coriolis-3d);
840      - remove (or gzip) few files not needed to run fizhi-cs experiments.
841    o pkg/exf (vector interpolation):
842      - rotate vector component toward local grid-axis orientation using grid-angles
843        (stored in GRID.h) instead of locally computed rotation angle; keep old code
844        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
845    o pkg/seaice:
846      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
847        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
848    o pkg/PKG_OPTIONS.h files:
849      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
850        outside of the #ifdef ALLOW_THISPKG / #endif block.
851      - update verification/*/code/PKG_OPTIONS.h files.
852    o add a verification experiment (offline_exf_seaice/input.seaice) that test
853      the B-grid LSOR solver
854    o pkg/seaice: sort out emissivity and long wave radiation step 2:
855      - add emissivity for snow and ice as new run-time parameters
856        (unfortunately) that default to the corresponding exf values; this
857        changes results in most verification experiments so that for backward
858        compatibility these parameter have to be set explicitly to inconsistent
859        values (ugly);
860      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
861        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
862        until we agree how to handle this bug properly
863    o pkg/exf (interpolation):
864      - add a set of run-time param ({inputfield}_interpMethod), one for
865        each interpolated input field, to select the interpolation method
866        with a value of zero switching off the interpolation;
867      - print interpolation parameters to standard output;
868      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
869        (to use instead runoff_interpMethod=0 in data.exf).
870      - simplify default setting of interpolation parameters (for all fields,
871        set position to match model grid cell-center position, leading to trivial
872        interpolation in case of regular Lat-Lon grid) and fix for the case of
873        non-uniform delY.
874    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
875       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
876       this factor is absolutely required, because the lw exitance (= out-going
877       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
878       where the reflectivity rho = 1-emissivity for conservation reasons. Once
879       this is established, we can remove the CPP-Flag (if we want to).
880    o pkg/seaice:
881      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
882        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
883      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
884        what the name implies (and not emissivity*BoltzmannConstant), this means
885        the old default value of 5.5e-8 now means
886        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
887        S/R exf_readparms
888      - FV-discretization of the B-grid LSOR solver, turn on with
889        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
890        of the calling routine dynsolver, so that B and C-grid code look a
891        little more alike.
892      - fix index bugs in ostres.F (B-grid code)
893    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
894    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
895      default for SEAICE_emissivity, if useEXF; requires setting a wrong
896      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
897      backward compatiblity
898    o model/src: use sigmaR in calc_ivdc
899    
900    checkpoint63g (2011/12/16)
901    o pkg/seaice/seaice_growth.F:
902      fix heat conservation of the coupled ocean-seaice system.
903      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
904      solid vs liquid water treatment is resolved via QNET.
905    o pkg/seaice/seaice_growth.F:
906      add missing term for sublimation in saltFlux, which was breaking conservation.
907    o pkg/seaice/seaice_model.F:
908      Remove this patholigical case treatment in evolution branch,
909      where it is un-necessary and breaks conservation.
910      Update global_ocean.cs32x15/results accordingly for
911      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
912    o model/src:
913      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
914      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
915    o pkg/obcs:
916      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
917      tendency for temperature and salinity that is then applied to update
918      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
919      horizontal advection and diffusion contributions on the boundary (in
920      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
921      removing the mask in S/R timestep_tracer. The advantage of this approach is
922      that the updated tracer values include contributions from the surface
923      forcing and vertical diffusion.
924      This modification changes exp4.stevens because of vertical diffusion.
925    o model/src:
926      change non-curvilinear grid setting to also work with exch2 + blank tiles:
927      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
928        face dimensions.
929      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
930        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
931        and INI_SPHERICAL_POLAR_GRID.
932      change test-experiment global_ocean.90x40x15:
933      - split the domain in many more tiles (9x4 tiles of 10x10 each);
934      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
935      - update results of both test (std & dwnslp).
936    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
937       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
938    o model/src:
939      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
940        and fix initialisation when using sigma-coords.
941    o model/src:
942     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
943       to their current value at the beginning of forward_step.F": add a new run-time
944       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
945     - set doResetHFactors=T in the following test exp:
946        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
947        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
948        and tutorial_global_oce_in_p (nonLinFS in p)
949    o pkg/ecco
950      - added IES cost term
951    o verification/advect_xz
952      - scale down the depth by 1/100 (from 200 km to just 2.km)
953      - add secondary test using divergent flow, r-star and implicit vertical advection.
954      - add note (check_conserve_TS.txt) and matlab script to check global
955        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
956    o pkg/rbcs:
957      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
958    o pkg/obcs (Stevens BCs):
959      - fix various problems in the phase speed computations of the Stevens
960        boundary conditions:
961        - sign error for western and southern boundaries,
962        - time tendencies were underestimated by factor of dTracerLev and some just
963          zero (for multidim advection schemes) -> now estimate time tendencies
964          from difference between previous (n) time level and the one before (n-1);
965          this requires storing a field per tracer per boundary, also in the pickup
966          files.
967        - replace deltaTmom in cflMer/Zon computation with dTracerLev
968        - set default phase velocity to cflMer/Zon
969      - update verification experiment exp4.stevens
970    o pkg/generic_advdiff (implicit_r):
971      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
972        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
973      - fix implicit vertical diffusion or advection with NonLin FreeSurf
974        (was using current recip_hFacC instead of future recip_hFacC): set future
975        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
976        solver S/R ;
977      - fill diagnostics of vertical advective fluxes (computed from tendency)
978        when using implicit vert. advection;
979      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
980         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
981         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
982         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
983    o pkg/diagnostics:
984      - add diags for T & S tendency which goes through Adams-Bashforth.
985    
986    checkpoint63f (2011/11/30)
987  o pkg/obcs/obcs_calc_stevens.F:  o pkg/obcs/obcs_calc_stevens.F:
988      - join some loops to reduce number of if-statements
989    - fix a bug in code for northern and southern boundaries.    - fix a bug in code for northern and southern boundaries.
990  o pkg/seaice/seaice_init_varia.F  o pkg/seaice/seaice_init_varia.F
991    - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and    - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
992      caused zero ice-velocities for the B-grid code      caused zero ice-velocities for the B-grid code
993  o pkg/seaice/seaice_init_fixed.F  o pkg/seaice/seaice_init_fixed.F
994    - fix a bug in the initialisation of the second metric terms    - fix a bug in the initialisation of the second metric terms
995      k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.      k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
996    - this affects all seaice configurations with useCurviLinearGrid = .true.    - this affects all seaice configurations with useCurviLinearGrid = .true.
997      and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms      and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms

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