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revision 1.1552 by mlosch, Mon Dec 19 11:51:22 2011 UTC revision 1.1688 by gforget, Fri Jul 13 02:38:11 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 pkg/seaice/seaice_growth.F :
8     - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
9       for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
10       when the previous code was not correct.
11     - in all cases diagnoze the boundary condition mismatch to SIaaflux
12     - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
13       that term to QNET (essentially to set the melt/freeze water to 0degC).
14       when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
15    o verification/global_ocean.cs32x15/input.seaice :
16     - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
17     - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
18     - update results (output.seaice.txt) accordingly.
19    o verification/lab_sea/input/data.seaice :
20     - remove SEAICEheatConsFix, which is now be tested
21       in global_ocean.cs32x15. The presently coded fix
22       is only consistent with real fresh water + nlfs.
23     - update results (output.txt) accordingly.
24    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
25    o AD_CONFIG.h file:
26     - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
27     - remove #include "AD_CONFIG.h" from all included OPTIONS files and
28       add it explicitly in each fortran src file where it is needed.
29       motivation: header file AD_CONFIG.h is generated/modified after "make depend"
30       thus introducing potentially wrong dependency; therefore, better to include
31       it only where it's really needed, and after any other included OPTIONS file
32       (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
33       or ALLOW_TANGENTLINEAR_RUN).
34    
35    checkpoint63p (2012/07/06)
36    o pkg/autodiff:
37      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
38      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
39        which are now read from new parameter file "data.autodiff" (inAdExact
40        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
41      - add file "data.autodiff" in all verification/*/input_ad/ directories.
42      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
43        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
44    o verification/tutorial_tracer_adjsens/
45      - add extra sub-verification which uses "SOM" advection scheme
46        (2nd Order-Moment Advection Scheme, Prather Limiter) with
47          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
48        and in data:
49          multiDimAdvection=.TRUE.,
50          tempAdvScheme=81,
51          saltAdvScheme=81,
52    o model/src:
53      - introduce ALLOW_BALANCE_RELAX which allow the removal
54       of the global mean of relaxation terms by setting
55       balanceThetaClimRelax and balanceSaltClimRelax
56      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
57       This case is now treated appropriately in seaice_growth.F
58    o pkg/seaice:
59      - do balanceEmPmR and balanceQnet based on the net fluxes
60        (SItflux) that enter the ocean+ice system rather than QNET
61        and EMPMR. Works best in real fresh water.
62      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
63        out of the diagnotics bloc, and stored in global arrays.
64    
65    checkpoint63o (2012/06/29)
66    o vertical mixing schemes:
67      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
68      - replace computation of density (in Function STATE1, opps_calc.F) by a call
69        to S/R FIND_RHO_SCALAR
70      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
71        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
72        affects output (vermix.ggl90) at truncation level.
73    o testreport:
74      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
75        (nSx,nSy) for the number of threads (from eedata.mth)
76    o model/src:
77      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
78        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
79    o verification/tutorial_tracer_adjsens/
80      - compile with ALLOW_CG2D_NSA
81      - run with nonlinFreeSurf=3
82      - update reference output_adm.txt
83    o tools/genmake2:
84      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
85        refine usePROFILES switching off (only when NetCDF is not available).
86    o verification (atmospheric set-up):
87      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
88    o pkg/profiles : refine profiles and files handling.
89    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
90    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
91      - changes to use model/src/the_main_loop.F rather than the ecco version
92        in ecco type adjoint runs.
93    o model/src:
94      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
95      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
96      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
97    o model/src:
98      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
99        update output of test experiment bottom_ctrl_5x5.
100    o pkg/generic_advdiff:
101      - implement vertical bi-harmonic diffusion (for now, only for T & S and
102        only explicitly).
103    o verification/bottom_ctrl_5x5/
104      update reference output (results changed quite some time ago,
105      not sure when; but new reference results look ok in terms of grdchk)
106    o verification/1D_ocean_ice_column/
107      For verification purposes, the exact adjoint rather than an approx.
108      should be used (e.g., to comare against F.D. or TLM).
109      removed autodiff_inadmode*_ad.F routines in code_ad/
110      Update results/ accordingly.
111    o pkg/cal:
112      - change cal_getdate.F so that output date is function of input time only
113        (less ambiguous, not mixed up with input iteration number).
114      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
115    o pkg/diagnostics:
116      - implement calendarDumps also for stats-diags
117      - implement calendarDumps also for snap-shot output (negative freq)
118      - for now, ignores calendarDumps if non-zero phase-lag.
119    
120    checkpoint63n (2012/06/04)
121    o model/src:
122      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
123        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
124      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
125        similar to calc_r_star.F); update results of experiment internal_wave and
126        tutorial_global_oce_in_p (affected @ truncation level).
127    o pkg/shelfice:
128      - add parameterisation of advective-diffusive flux into the ice shelf
129        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
130      - simply eps3/3a computation
131    o eesupp:
132     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
133       between tiles, just fill-in edges assuming locally periodic subdomain) and
134       add corresponding exchange subroutines (EXCH0);
135     - new CG-solver version (_EX0) for disconnected-tiles special case.
136    o model/src (CG-solvers):
137     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
138       (similar final residual output and max-Iter number as with standard version);
139     - allows to store and use lowest-residual solution (standard & _SR versions);
140     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
141     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
142    o eesup/src:
143     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
144       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
145    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
146    
147    checkpoint63m (2012/04/27)
148    o pkg/shelfice:
149     - account for partical cells in surface level below ice-shelf for hydrostatic
150       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
151    o ad test experiments:
152     - update and rename to "ad_optfile.local" local AD-optfile specific to a
153       particular adjoint verification experiment (in verification/*/code_ad/)
154    o pkg/seaice & pkg/exf:
155     - Part two of ECCO-CLIVAR code merges.
156       Completes merge of seaice area relax. code.
157       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
158       to be set in EXF_OPTIONS.h since this pkg controls its I/O
159       (and avoids second CPP option in SEAICE_OPTIONS.h)
160     - change default value of costIceStart & costIceEnd to a valid date.
161     - add snowPrecip to HSNOW in seaice_growth
162    o pkg/ptracers:
163     - move ptracers summary and setup check into separated S/R ; add a check for
164       valid PTRACERS_Iter0 value (error+stop or just warning).
165    o pkg/cal (+ pkg/ecco):
166     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
167       as input; and for AD, unless both are not differentiable (e.g., k index)).
168    o model/src:
169     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
170       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
171       temporary set to usingZCoords value (to be changed to F when using shelfice).
172     - hydrostatic pressure: implement partial cell near the surface also for
173       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
174       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
175    o pkg/ctrl/ctrl_init.F:
176     - add a formal parameter to s/r ctrl_init_rec to print
177       xx_$(ctrl_valiable)_file for easier debugging
178     - move call of cal_* routines into the if-block where they are really
179       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
180       to specify a startdate
181    o pkg/seaice:
182     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
183       global_ocean.cs32x15/code versions).
184     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
185       verification experiment global_ocean.cs32x15.seaice and update results.
186    o pkg/exf:
187     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
188       (according to useExfYearlyFields).
189    o pkg/cal:
190     - move calendar setting & summary (previously in cal_readparams.F) into new
191       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
192       length of the simulation is set (after SET_PARMS call); This is an attempt
193       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
194     - For safety: keep a record of pkg/cal parameter settings status
195               to allow to STOP if one pkg/cal S/R is called too early.
196     - add a stop in all basic pkg/cal subroutines if called before setting is done.
197     - modify cal_getdate.F: stop when nothing was returned;
198       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
199       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
200    
201    checkpoint63l (2012/04/04)
202    o pkg/bbl:
203      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
204        update global_with_exf output.yearly.txt file.
205    o pkg/cal:
206      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
207      - remove 2 unsused and very short (1 line only) functions ;
208      - remove unsused subroutines from AD-Diff list.
209    o model/src:
210      - start to implement clean wait to stop in initialization S/R (config_check.F,
211         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
212    o folowing PRINT_MESSAGE changes:
213      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
214    o pkg/bbl:
215      - modification so it can work with z*
216      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
217      - global_with_exf/input.yearly verification; changes output.yearly.txt
218    o eesupp/src:
219      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
220        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
221      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
222        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
223      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
224      - when using MPI, always set usingMPI=T ; set default accordingly and stop
225        if not consistent.
226      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
227        argument is zero (in case called within single-thread section).
228    o pkg/fizhi:
229        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
230        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
231    o pkg/exch2:
232      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
233        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
234      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
235        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
236        with bad ones coming from a not-yet-updated halo.
237        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
238    o pkg/frazil:
239        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
240        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
241    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
242    o verification/lab_sea
243      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
244      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
245      * nTimeSteps 3 -> 4
246      * changed reference output accordingly
247    o pkg/ctrl:
248      * fix ctrl_get_gen for xx_sst, xx_sss
249    o pkg/fizhi:
250      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
251        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
252      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
253        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
254        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
255    o pkg/gmredi:
256      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
257    o pkg/fizhi:
258      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
259        (old)aces open64 tuv test.
260    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
261    o pkg/mom_vecinv:
262      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
263        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
264        with non-lin free-surf).
265    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
266      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
267      some compilers (gfortran 4.6.0 on MacOS)
268    o momentum:
269      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
270        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
271        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
272    
273    checkpoint63k (2012/03/17)
274    o model/src:
275       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
276         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
277       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
278         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
279    o model/src: solve_*diagonal.F
280       - replace division with multiplication by inverse (similar to original version)
281         update output of AD exp. global_ocean.90x40x15.
282       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
283         to enable the use of the vectorized & differentiable solve_tridiagonal.F
284       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
285         vertical advection (to get solve_tridiagonal tested in AD mode).
286    o pkg/seaice: ECCO-CLIVAR merge:
287      1. seaice AREA relaxation
288         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
289         * runtime flag: SEAICE_tauAreaObsRelax
290      2. modified global mean cost imbalance code: CPP option
291          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
292    o another iteration on solve_*diagonal.F
293       Make choices independent of AUTODIFF
294       Default will be the adjoinable vectorized version.
295       Alternative choices are:
296       * non-adjoinable original version with low memory footprint:
297         #define SOLVE_DIAGONAL_LOWMEMORY
298       * still adjoinable but does not vectorize (k as inner-most loop):
299         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
300    o testreport
301     - add option to use a home made wrapper around "make"
302     - remove MITGCM_IEEE env. variable (no longer active)
303    o pkg/shelfice
304     - improve computation of friction velocity for velocity dependent
305       exchange coefficients: include velocities into SHELFICEBoundaryLayer
306       block to average velocities vertically
307     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
308    o Modify diagonal solvers, now three versions (upon request):
309      #ifndef SOLVE_DIAGONAL_AUTODIFF
310        1. default version (dating back a while ago)
311      #else /* def SOLVE_DIAGONAL_AUTODIFF */
312      # ifdef SOLVE_DIAGONAL_KINNER
313        2. adjoinable version with k-innermost loop (G. Forget)
314      # else
315        3. adjoinable vectorized version of 2.
316      # endif
317      #endif /* SOLVE_DIAGONAL_AUTODIFF */
318      All flags are currently set within routines, but could/should be moved to CPP-options.
319      Array bounds for 1. are as before, for 2.,3. cover the entire domain
320      (could be changed for 1. too).
321    o verification/lab_sea (fwd):
322      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
323        use 7 categories (except hb87), new solve4temp params (except salt_plume),
324        constant salinity (=4) or variable salinity (salt_plume) done through
325        SItracer.
326    o pkg/seaice:
327      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
328      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
329         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
330        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
331        SEAICE_freeze got retired) but already better than previously with
332        SEAICE_freeze=123456.7 deg.C;
333      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
334        (safer multi-threaded setting); always set SEAICEuseEVP;
335      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
336        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
337        stop if multiple specifications for the same coeff; make sure default
338        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
339    o pkg/obcs:
340      - allow to switch to upwind 1rst order advection scheme for the advective
341        flux computation at the open-boundary; disabled for adjoint built.
342    o pkg/ptracers:
343      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
344      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
345      - add parameter to decide when to start a tracer; use internal flag to
346        know which tracer to step-forward; switch this internal flag at the top
347        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
348        for adjoint built.
349    o pkg/seaice:
350      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
351      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
352      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
353    o pkg/ecco:
354      - fix writing of output file DiagnosCost_ClimSalt/Theta
355        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
356    o pkg/seaice:
357      - add missing initialisation of COR_ICE array in dynsolver.F
358      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
359        compiled either way, and is tested in all exps (multidim was only tested
360        in lab_sea ad before).
361      - cosmetic change to prepare for future addition of ITD. no change to results.
362        no defaults change.
363      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
364      - by lack of adequate verification experiments, I further used custom versions
365        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
366        should be correct.
367      - avoid recomputations in ad.
368    o array initialisation in adjoint mode:
369      1) pkg/mom_common/mom_calc_ke.F:
370        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
371        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
372        part this initialisation is gone, resulting in Floating Point Exception
373        (caught by open64 compiler with debug option).
374      2) model/src/convective_weights.F
375        set output convectCount over the full array range (instead of doing
376        an update): this fix a similar issue when called within recomputation (adjoint)
377        which could by-pass the initialisation (normally done in the caller S/R).
378    o pkg/seaice:
379      - final version of turbulent flux params, as agreed at MIT ice meet:
380           SEAICE_mcPheePiston (default is ~ 0.000875)
381           SEAICE_mcPheeTaper (default is 0.)
382           SEAICE_frazilFrac (defualt is 1.)
383           SEAICE_mcPheeStepFunc (default is false)
384      - changes results at trunction error level
385      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
386    o added pkg/frazil:
387      - see frazil_description.tex for details
388      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
389    o pkg/shelfice/shelfice_thermodynamics.F
390      - fix exponents for velocity dependent exchange coefficients: change
391        from 2/3(=0) to 0.66666666666666667
392      - move computation of velocity dependent exchange coefficients into
393        separate loop, so that it applies to both thermodynamics
394      - move some divisions by constants out of loops
395    
396    checkpoint63j (2012/02/16)
397    o pkg/seaice:
398      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
399      - SItracer:  added run time params, and allow coupling to ocn salinity.
400    o pkg/seaice: remove (almost) all divisions by constants within loops
401      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
402      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
403      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
404      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
405    o pkg/seaice :
406      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
407        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
408      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
409      - add permanent SItflux diag that corresponds to TFLUX but includes
410        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
411      - allow activation/testing of a fix for suspected missing term in
412        ocn-ice heat budget (to be confirmed). To test this, you want to
413        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
414        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
415      - no change in results, fwd or ad.
416    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
417      - switch to variable freezing point.
418           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
419      - bug fix : the sublimation term that was missing is now activated.
420           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
421      - bug fix : flooding sign term for SIsal0.NE.0.
422           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
423    o pkg/seaice:
424      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
425        is now the default, and the old default constant freezing point is recovered
426        with SEAICE_tempFrz0    = -1.96,
427             SEAICE_dTempFrz_dS = 0.,
428      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
429      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
430      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
431        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
432      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
433        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
434      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
435        seaice_growth r149 for legacy branch (no results change).
436      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
437        from I. Fenty).
438      - results did not change except for global_ocean.cs32x15, mostly due to the
439        switch to variable freezing point (see above item for detail).
440    o pkg/thsice:
441      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
442        seawater freezing in thsice_calc_thickn (not used).
443    o pkg/seaice: turbulent flux term specification via run time params.
444      - replace CPP switches with run time switches to facilitate testing
445      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
446                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
447      - added runtime parameter : SEAICEturbFluxFormula
448      - move Mcphee constants to SEAICE_PARAMS.h
449      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
450                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
451                 remove seaice_summary call (moved to seaice_init_fixed)
452      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
453        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
454      - seaice_summary.F : add missing report of read turbulent flux term set up
455                           and SITRACER.
456      - seaice_check.F : check range; inform and stop if retired CPPs are used
457                         (incl. SEAICE_AGE).
458      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
459             CPP switch, same computation as before for the different options.
460      - change results at the truncation level.
461    o pkg/seaice:
462      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
463        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
464        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
465      - update verification/*/input*/data.seaice:
466        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
467        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
468        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
469        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
470    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
471      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
472        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
473        difference in results only due to machine truncation.
474      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
475        MaykutPolySatVap; keep MIN_LWDOWN.
476      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
477      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
478        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
479    o pkg/salt_plume:
480      - isolate saltPlumeFlux array exch into a specific S/R called from
481        do_oceanic_phys.F
482      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
483    o verification:
484      - move untested set-up to MITgcm_contrib/verification_other.
485    o pkg/seaice:
486      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
487    o pkg/seaice:
488      - seaice_solve4temp.F (keeping results unchanged):
489        * add 2 future run-time params to select which saturation vapor pressure
490          formula is used and how post-iteration fluxes are set.
491          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
492        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
493          the linearized expression to stay consistent with tsurf finding.
494      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
495        can be < 0.
496    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
497      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
498        conductive heat flux F_c , and add it explicitly when updating tsurf as
499        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
500        so that now F_ia has a consistent meaning through the entire routine.
501        This causes differences at truncation level: update output of fwd exp.
502        global_ocean.cs32x15.seaice.
503    o pkg/seaice:
504      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
505        of arrays, sign/direction of fluxes; no effect on results.
506      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
507        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
508        note: this should have been done before changing celsius2K default.
509      - to keep results unchanged, add back old value of celsius2K in verification
510        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
511      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
512        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
513        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
514        freezing temp is consistent with value in seaice_growth.F ; this causes
515        differences at machine truncation level: update lab_sea AD output (3/4).
516    o pkg/seaice:
517      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
518        and climsst/sss even when using seaice (to prevent calculation that might
519        use SST on land); does not affect any verification exp.
520      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
521        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
522    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
523      over land (non-legacy code)
524    o vectorize salt_plume package:
525      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
526      - this code computes plumebk everywhere (also over land), thus requires
527        code to avoid divisions by zero and catch the case of kLev=Nr.
528      - efficiency of salt_plume_frac is still sub-optimal
529    o tools (genmake2):
530      - fix makefile NAME specification (option: -makefile NAME) by adding
531        "-f $MAKEFILE" in few places where it was missing including makedepend
532        command (contribution from Paul).
533    
534    checkpoint63i (2012/01/24)
535    o model/src:
536      - add factorized versions of some EOS code to find_rho.F,
537        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
538    o model/src:
539      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
540      - change default celsius2K from 273.16 to 273.15
541      - to keep results unchanged, add back old value of celsius2K in verification
542        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
543         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
544    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
545      to make TAF generate vectorizable code
546    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
547       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
548       have flags that do this more efficiently.
549    o pkg/diagnostics/diagstats_calc.F
550      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
551    o pkg/obcs (with exch2):
552      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
553        and remove code (in obcs_readparms.F) which was based on EXCH of indices
554        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
555    o pkg/exf and seaice exp:
556      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
557        so that switching off area & heff advection flags does not affect results.
558      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
559      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
560        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
561        results of verification experiments: 1D_ocean_ice_column(fwd),
562        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
563        and offline_exf_seaice (all 4).
564    o pkg/seaice:
565      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
566        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
567      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
568        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
569        not multi-dim advection;
570      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
571        SHORTWAVE_HEATING #undef.
572    o optim: make Makefile more robust (?)
573    o pkg/obcs:
574      * fix treatment of obcs_read_pickup for TAF
575    o pkg/shelfice:
576      * add missing initialisation of num_shifwflx
577      * new adjoint verification exp. for isomip
578      * change Prandtl and Schmidt numbers from generic formulations
579        (in terms of model diffus. and visc.) to separate runtime
580        parameters, with Holland and Jenkins (1999) default values.
581    o pkg/exf (interpolation):
582      - extended input field (2 rows) near the N & S poles:
583        * fill in with the symetric value (when even Nb of data in longitude)
584        * add average value at the poles only for scalar quantities ; for vector
585          component interpolation, skip the averaging and keep duplicated values,
586          unless the 2 components have same location (uvInterp=T) in which case
587          interpolate the 2 components together using S/R EXF_INTERP_UV.
588      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
589        together: this allows to account properly for local orientation when
590        averaging at N & S pole.
591      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
592        exf-interpolation near N & S poles. Undef by default.
593      - add debug check/print on 1rst iter if debugLevel >=2.
594    o pkg/exf:
595      - change masking flags definition (no longer "parameter"), put them in
596        common block and set them in S/R EXF_INIT_FIXED.
597      - change recognized masking flag from s,u,v to c,w,s since the mask
598        to use (maskC,W,S) depends on position on model grid and has little to
599        do with scalar/vector difference; fix masking if using P-coordinates.
600      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
601        and update results of exp. global_with_exf (x2).
602      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
603    o pkg/obcs
604      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
605    o pkg/exf (interpolation):
606      - assume periodicity in X only if input field cover full longitude range.
607      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
608        and should vectorise).
609      - fix input lat of the 2 added row (in case we provide N.pole data).
610    
611    checkpoint63h (2011/12/30)
612    o pkg/seaice:
613      - change declaration of UVM from _RL to _RS in order to get B-grid
614        uIce,vIce monitor when _RS = real*4
615    o pkg/offline:
616      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
617      - compute vertical velocity if not read from file (switch on exactConserv
618        & staggerTimeStep);
619      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
620    o verification:
621      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
622        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
623        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
624      - update output of exp. global_ocean.cs32x15.viscA4 after changing
625        grid-file angles (used here for coriolis-3d);
626      - remove (or gzip) few files not needed to run fizhi-cs experiments.
627    o pkg/exf (vector interpolation):
628      - rotate vector component toward local grid-axis orientation using grid-angles
629        (stored in GRID.h) instead of locally computed rotation angle; keep old code
630        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
631    o pkg/seaice:
632      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
633        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
634    o pkg/PKG_OPTIONS.h files:
635      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
636        outside of the #ifdef ALLOW_THISPKG / #endif block.
637      - update verification/*/code/PKG_OPTIONS.h files.
638    o add a verification experiment (offline_exf_seaice/input.seaice) that test
639      the B-grid LSOR solver
640    o pkg/seaice: sort out emissivity and long wave radiation step 2:
641      - add emissivity for snow and ice as new run-time parameters
642        (unfortunately) that default to the corresponding exf values; this
643        changes results in most verification experiments so that for backward
644        compatibility these parameter have to be set explicitly to inconsistent
645        values (ugly);
646      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
647        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
648        until we agree how to handle this bug properly
649    o pkg/exf (interpolation):
650      - add a set of run-time param ({inputfield}_interpMethod), one for
651        each interpolated input field, to select the interpolation method
652        with a value of zero switching off the interpolation;
653      - print interpolation parameters to standard output;
654      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
655        (to use instead runoff_interpMethod=0 in data.exf).
656      - simplify default setting of interpolation parameters (for all fields,
657        set position to match model grid cell-center position, leading to trivial
658        interpolation in case of regular Lat-Lon grid) and fix for the case of
659        non-uniform delY.
660    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
661       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
662       this factor is absolutely required, because the lw exitance (= out-going
663       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
664       where the reflectivity rho = 1-emissivity for conservation reasons. Once
665       this is established, we can remove the CPP-Flag (if we want to).
666    o pkg/seaice:
667      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
668        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
669      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
670        what the name implies (and not emissivity*BoltzmannConstant), this means
671        the old default value of 5.5e-8 now means
672        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
673        S/R exf_readparms
674      - FV-discretization of the B-grid LSOR solver, turn on with
675        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
676        of the calling routine dynsolver, so that B and C-grid code look a
677        little more alike.
678      - fix index bugs in ostres.F (B-grid code)
679    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
680  o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the  o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
681    default for SEAICE_emissivity, if useEXF; requires setting a wrong    default for SEAICE_emissivity, if useEXF; requires setting a wrong
682    parameter value in global_ocean.cs32x15/input.seaice/data.seaice for    parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
# Line 20  o pkg/seaice/seaice_growth.F: Line 693  o pkg/seaice/seaice_growth.F:
693  o pkg/seaice/seaice_model.F:  o pkg/seaice/seaice_model.F:
694    Remove this patholigical case treatment in evolution branch,    Remove this patholigical case treatment in evolution branch,
695    where it is un-necessary and breaks conservation.    where it is un-necessary and breaks conservation.
696    Update global_ocean.cs32x15/results accordingly for    Update global_ocean.cs32x15/results accordingly for
697    output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt    output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
698  o model/src:  o model/src:
699    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
700    external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.    external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.

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