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revision 1.1374 by jmc, Sun Feb 6 00:24:40 2011 UTC revision 1.1541 by mlosch, Fri Dec 2 15:29:07 2011 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/obcs (Stevens BCs):
8      - fix various problems in the phase speed computations of the Stevens
9        boundary conditions:
10        - sign error for western and southern boundaries,
11        - time tendencies were underestimated by factor of dTracerLev and some just
12          zero (for multidim advection schemes) -> now estimate time tendencies
13          from difference between previous (n) time level and the one before (n-1);
14          this requires storing a field per tracer per boundary, also in the pickup
15          files.
16        - replace deltaTmom in cflMer/Zon computation with dTracerLev
17        - set default phase velocity to cflMer/Zon
18      - update verification experiment exp4.stevens
19    o pkg/generic_advdiff (implicit_r):
20      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
21        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
22      - fix implicit vertical diffusion or advection with NonLin FreeSurf
23        (was using current recip_hFacC instead of future recip_hFacC): set future
24        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
25        solver S/R ;
26      - fill diagnostics of vertical advective fluxes (computed from tendency)
27        when using implicit vert. advection;
28      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
29         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
30         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
31         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
32    o pkg/diagnostics:
33      - add diags for T & S tendency which goes through Adams-Bashforth.
34    
35    checkpoint63f (2011/11/30)
36    o pkg/obcs/obcs_calc_stevens.F:
37      - join some loops to reduce number of if-statements
38      - fix a bug in code for northern and southern boundaries.
39    o pkg/seaice/seaice_init_varia.F
40      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
41        caused zero ice-velocities for the B-grid code
42    o pkg/seaice/seaice_init_fixed.F
43      - fix a bug in the initialisation of the second metric terms
44        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
45      - this affects all seaice configurations with useCurviLinearGrid = .true.
46        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
47        = .true. (default)
48      - the only verification experiment affected is global_ocean.cs32x15:
49        icedyn, seaice, and seaice_dynmix (AD)
50    o pkg/thsice/thsice_diagnostics_state.F
51      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
52        not contain garbage that can lead to surprises in diagstats_calc.F
53    o model/src:
54      - move bi,bj loops inside INTEGR_CONTINUITY ;
55      - call INTEGR_CONTINUITY directly from forward_step.F
56        (previously called from momentum_correction_step.F)
57      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
58        forward_step.F and pkg/ecco/the_main_loop.F
59    o model/src/do_oceanic_phys.F:
60      - reset addMass to zero only if useICEFRONT ;
61      - separated k-loop for rhoInSitu calculation ;
62      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
63        and at constant T,S (= WdRHOdP);
64      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
65        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
66        transport of locally-referenced potential density);
67        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
68    o gluemnc:
69      - replace ncrcat with ncks when adding variables to *.glob.nc
70      - change the way variables without record dimensions are handled so that
71        files that have variables with and without record variables can be glued:
72        add a record dimension with a new unique name to be able to differentiate
73        between variable with and without a-prior record dimensions. Remove
74        this record dimension before adding the variable to the *.glob.nc file.
75        This procedure automatically works also for grid.*.nc files that do not
76        have any record dimension.
77    o verification/cpl_aim+ocn:
78      - generate new reference output on baudelaire (gfortran, mpich2) (previously
79        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
80    o pkg/obcs/obcs_calc_stevens.F:
81      - add code for northern and southern boundaries.
82      - reorder some loops to save some operations and so that drFBar can be scalar
83    o model/src:
84      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
85        truncation) and add diagnostics for Adams-Bashforth tendency increment.
86      - update test-exp. AD output:
87        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
88      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
89        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
90        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
91        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
92        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
93        tutorial_plume_on_slope.
94    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
95      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
96      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
97      does not even come with an F77 compiler anymore, this should not be
98      a limitation
99    
100    checkpoint63e (2011/11/06)
101    o pkg/seaice adjoint of LSR:
102      - substantially rework STORE dirs.
103      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
104        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
105        and only perform SOLV_MAX_FIXED adjoint iters.
106        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
107        always goes to same record, meaning that the last forward field will be
108        the one used in the adjoint - an approximation.
109      - now produces non-zero LSR-related gradients, and acceptable gradients for
110        An's zonal (x-z) test case (to be checked in)
111      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
112        (but these are screwed up by the thermodynamics in the first place);
113        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
114        output_adm.txt also reflects changes to seaice_lsr
115      - global_ocean.cs32x15:
116        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
117          (output_adm.seaice.txt was updated)
118        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
119          (output_adm.seaice_dynmix.txt)
120    o test-exp. exp4+stevens:
121      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
122    o pkg/seaice (lsr solver):
123      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
124        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
125      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
126      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
127        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
128      - compute (with new S/R) and print initial (+ free-driff sol. if available)
129        and final residual of linearised system.
130    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
131      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
132    o pkg/obcs: Stevens BCs (still only for east and west)
133      - fix Stevens BCs by using intermediate velocities of previous
134        time step as "baroclinic" contribution rather velocity of one grid cell
135        inside the boundaries; more consistent but makes the entire treatment
136        more complicated, requires new pickup files and two new S/Rs:
137        obcs_copy_uv_n and obcs_save_uv_n
138        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
139        (undefined by default)
140      - silently move computation of some grid factors into separate loops to
141        save some recomputations
142      - add a hack for non-linear free surface
143      - add a verification experiment to exp4 that tests this code
144    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
145    
146    checkpoint63d (2011/10/25)
147    o pkg/obcs + seaice-dynamics:
148      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
149        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
150        values (consistent with an implicit method).
151      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
152        return to older implementation (same results as before); note that none of
153        the "experimental" OBCS_SEAICE options are implemented in the new version.
154      - switch test exp. seaice_obcs to use new version (update output).
155    o pkg/seaice:
156      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
157      - add parenthesis in Water-Ice drag calculations (evp & lsr);
158      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
159        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
160      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
161        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
162    o pkg/layers:
163      - Include potential density as new coordinate (Thanks to David Munday)
164    o pkg/dic:
165      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
166        carbonate computation/output to CALC_PCO2_APPROX
167    o pkg/generic_advdiff
168      - make TAF generate code that vectorizes:
169        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
170    o model/src:
171      - improve vectorization also for adjoint code of
172        solve_tridiagonal and solve_pentadiagonal. As this requires up to
173        5 new 3D-fields, this code is only turned on for the combination of
174        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
175        for singular matrix check (only for TARGET_NEC_SX).
176      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
177        ALLOW_AUTODIFF. This flag now needs to be set outside of
178        solve_tri/pentadiagonal.F
179    o pkg/exf:
180      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
181        optional namelist EXF_NML_OBCS).
182      - add many debug-print (to trace down where pkg/cal error msg comes from)
183    o pkg/mom_vecinv/mom_vi_hdissip.F
184      - rearrange loops so that vectorization is improved and in particular
185        the adjoint routine vectorizes. The code is a little longer now, but I
186        think easier to read.
187        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
188    o pkg/seaice:
189      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
190    o pkg/exch2:
191      - alternative code (without tile x tile matrix) for cumulated (global) sum;
192        used as default; keep using matrix version in adjustment.cs-32x32x1.
193    o tools/build_options:
194      - after merging some MPI and/or multi-threads specific optfiles so that
195        the modified default optfile support both built (using genmake2 -mpi
196        for the MPI built, using genmake2 -omp for OpenMP built),
197        move now obsolete optfiles to tools/build_options/unsupported/
198       (add copy of email sent to support list in doc/optfiles_changes.txt)
199    
200    checkpoint63c (2011/09/28)
201    o pkg/ebm:
202      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
203        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
204    o pkg/seaice (SItracer pickup)
205    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
206      To be done:
207      - thorough testing of missing fields in S/R seaice_read_pickup
208      - thorough matching between generic tracers and specific fields used
209        (e.g. volume-weighted age, area-weighted age, salinity, ...)
210    o pkg/grdchk:
211      - all procs calculate and print finite-difference gradient (for testreport)
212      - change description output used by testreport;
213      - AD testing: also compare and report Finite-difference gradient;
214        => update all output_adm*.txt
215    o test exp. global_ocean_ebm:
216      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
217        and turn on exactConserve; update (fwd) output.
218    o pkg/seaice (LSR):
219      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
220      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
221        * identical results with non-CS topology (but save up to half of EXCH calls)
222        * no much changes in cs-32 verification tests since no ice at face edges
223         (differences due to convergence criteria, since nb of iterations changed)
224        * expect some differences on lat-lon-cap grid.
225        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
226    o pkg/exch2:
227      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
228        many tiles); until alternative coding is added, just add a stop.
229    o pkg/kpp:
230      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
231        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
232    o optfiles:
233      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
234        into corresponding standard one, which now support different build:
235        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
236      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
237    o pkg/obcs (seaice):
238      - add missing EXCH for uIce,vIce after applying OBCS;
239      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
240        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
241        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
242      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
243      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
244        and eedata.mth for MPI and mutlti-threaded testing.
245    o pkg/flt:
246      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
247      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
248      - fix pickup and trajectories + profiles output with multi-threads;
249      - add parameter to select group of fields to write along trajectory and
250        profile (default unchanged);
251      - only call PORT_RAND* function when flt_noise <> 0;
252      - add multi-threaded test for verification exp. flt_example.
253    o eesupp/src:
254      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
255      - USE_OMP_THREADING: check that number of threads (from eedata) matches
256        actual number (from env.var. setting).
257    o pkg/ebm:
258      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
259      - add multi-threaded test for verification exp. global_ocean_ebm
260    
261    checkpoint63b (2011/08/29)
262    o pkg/ebm:
263      - fix sign of runoff;
264      - update directly forcing fields (Qnet,EmPmR) to use standard
265        external_forcing_surf.F (remove ebm_forcing_surf.F);
266      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
267      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
268        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
269      - update global_ocean_ebm parameters file data and update output (fwd+ad).
270    o verification/matrix_example:
271      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
272        MPI and mutlti-threaded testing.
273    o pkg/matrix:
274      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
275      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
276      - fix for multi-threaded (remove DATA statement);
277      - use standard DIFFERENT_MULTIPLE function;
278      - add MATRIX_OPTIONS.h
279    o verification/matrix_example:
280       To allow to split the domain in several tiles, change the domain size
281        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
282        Western side) of land points.
283    o (*_)write_pickup:
284      - fix few bugs in mypackage_read/write_pickup.F
285      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
286        array of length 1 (was caught by compiler syntax-check).
287    o pkg/diagnostics (velocity potential solver):
288      - fix initialisation of main diagonal matrix (for overlap values)
289    o tools/build_options:
290      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
291        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
292      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
293        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
294        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
295        and use "-devel" testreport option for standard testing on baudelaire.
296    o pkg/grdchk:
297      - Assume that all gradient-check position are within the same tile
298        corresponding to global indices (iGloTile,jGloTile) and that
299        positions (i,j indices or nbeg) are local to this tile;
300      - set tile local-indices and proc. number according to tile global-indices;
301      - remove grdchkwhichproc from namelist (retired param);
302      - send adjoint gradient to all procs so that all procs print it to STDOUT;
303      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
304    o adding package bbl (Bottom Boundary Layer)
305      description in MITgcm/pkg/bbl/bbl_description.tex
306      example/test experiment in MITgcm_contrib/bbl
307    o adjoint verifications
308      - changed 5 experiments to multi-tiles
309        * global_ocean.90x40x15
310        * obcs_ctrl
311        * offline_exf_seaice
312        * tutorial_dic_adjoffline
313        * tutorial_tracer_adjsens
314        changed reference output for those that crossed tile boundaries
315        (changed choices of gradient check positions)
316      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
317      - temporary bug fix in grdchk_loc.F for obcs
318    o genmake2 & testreport
319      - add target "obj" (just for OBJFILES files) to Makefile;
320      - add option to specify FEXTRAFLAGS on command line.
321    o pkg/mypackage:
322      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
323    
324    checkpoint63a (2011/08/02)
325    o pkg/diagnostics (velocity potential):
326      - fix velocity-potential calculation when using OBCS: balance net inflow
327        at each level (new S/R OBCS_DIAG_BALANCE).
328      - fix some of the problems with OBCS in stream-function calculation.
329    o pkg/exf/exf_readparms.F
330      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
331        EXF_NML_OBCS) more consistent, so that you need not have these lists
332        in data.exf when they are not used.
333    o optim/optim_readdata.F:
334      - add some output about obcs variables that might help debugging
335      - add a check about nvarlength
336    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
337    o pkg/diagnostics (velocity potential):
338      - fix mask for OBCS (still problems in stream-function with OBCS);
339      - add specific parameter (default = main code CG2D params) for solver;
340      - in case of poor convergence, use solution corresponding to lowest residual.
341    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
342      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
343      and should be avoided where possible.
344    o model/src (rStar):
345      - include r* effect on reference-state (PhiRef) in totPhiHyd
346        (so that it's really the potential anomaly at the cell center);
347        affect solution only if z* with full pressure in EOS.
348      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
349        update output (because of z* in totPhiHyd and viscA4 changes);
350      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
351        @ constant r) until interpolation at constant r is implemented.
352    o pkg/diagnostics
353      - fix RCENTER diagnostics in case cell center is not at interface middle
354    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
355      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
356      that THETA and SALT are "conservative temperature" and "absolute
357      salinity"
358    o pkg/ctrl
359      - fix computation of endrec in s/r ctrl_init_rec
360      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
361    o pkg/seaice/seaice_growth.F
362      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
363        remove then obsolete STORE directives
364      - fix STORE directives for tice and tices, so that only the
365        appropriate part of the fields are stored (and not the entire
366        field); update global_ocean.cs32x15.seaice AD output.
367      - cosmetic changes: adjust CPP flags and indentation for better
368        legibilty
369    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
370      Chris Wilson)
371    o pkg/gmredi:
372       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
373       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
374    
375    checkpoint63  (2011/07/11)
376    o pkg/exch2:
377     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
378     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
379       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
380       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
381    o pkg/diagnostics:
382     - deal with pairs of post-processed diags which are computed together; in
383       particular, re-order list of diags within 1 file to save 2nd computation.
384     - add S/R to compute velocity stream-function (called after velocity-potential
385       calculation) from divergence free transport -> new diagnostics "PsiVEL".
386     - add parameter to select grid-point location where PsiVEL == 0.
387    o eesupp/src:
388       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
389       (specific S/R needed with exch2 topology - for now, just print an error msg)
390    o pkg/shelfice
391     - Implement friction velocity-dependent transfer coefficients following
392       Holland and Jenkins, JPO, 1999
393       Original code by M. Losch with small modifs.
394       Enable with CPP option SHI_ALLOW_GAMMAFRICT
395       and runtime flag SHELFICEuseGammaFrict
396    o verification lab_sea & global_ocean.cs32x15:
397     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
398       does not miss some dependencies (but is slower) and also works with many files
399       (default makedepend limitation for AD built).
400     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
401    o pkg/diagnostics:
402     - add run-time parameter "useMissingValue" (def=False) to fill land-point
403        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
404       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
405     - Extend the use of "missing_value" setting from data.diagnostics for the case
406       of counter-diagnostics (where fraction-weight is zero). This applies both to
407       MNC and MDS output files.
408    o pkg/seaice/seaice_growth.F:
409      - add 'a priori' cap of latent heat flux based on actual mass considerations
410        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
411        non-legacy seaice_solve4temp.
412      - add diagnostic of the residual sublimation freshwater flux (the freshwater
413        flux taken from the ocean if the total actual latent heat fluxes exceed
414        the maximum)
415      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
416       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
417      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
418       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
419      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
420      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
421    o verification 1D_ocean_ice_column:
422       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
423       update results
424    o pkg/diagnostics:
425     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
426       which are not filled-up but computed from other diags ; In this case, the mate
427       diag points to the primary (filled-up) diag to used for post processing.
428     - Update Velocity-potential computation using post-processed diag framework.
429     ==> Change the ordering of fields and time-periods in MDS output file
430       when using periodic averaging: now writes one time record with the full set
431       of fields for this time period, then the next time reccord (it used to be
432       one field with the full set of time records then the next field).
433         Note: this is now similar to NetCDF (MNC) output file. <==
434    
435    checkpoint62z (2011/06/21)
436    o adjoint monitor:
437     - Add adjoint monitor output for packages exf, seaice
438       and update relevant testreport output
439    o pkg/seaice:
440     - re-order diags inits so that they appear in order in available_diagnostics.log
441     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
442       area/heff/hsnow preceeding thermodynamic growth/melt.
443     - modified diag: SIdA; output actual effect, as the description states.
444     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
445     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
446       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
447        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
448     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
449     - added diagnostics for seaice generic tracers (SItr*).
450     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
451     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
452     I. Fenty: 18-Jun-2011:
453     Minor changes to seaice package:
454     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
455        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
456       - Differentiated "regularization variables" from "floor variables"
457        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
458        * hiceMin became SEAICE_hice_reg (old hiceMin)
459          (with _reg meaning regularization variable)
460       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
461        so as to ensure energy conservation when going between phases
462      - A22 was not used anywhere
463     2) Changed regularization procedure for heffActual and hsnowActual to ensure
464        well-boundedness and smooth adjoint in seaice_growth.F
465     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
466        because the old regularization always set heffActual >= 0.05 cm
467     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
468        on AREA when HEFF > 0.
469      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
470        requiring that DISABLE_AREA_FLOOR *not* be defined
471     Affected verifications:
472      - 1D_ocean_ice_column (output.txt output_adm.txt)
473      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
474    o pkg/diagnostics:
475      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
476      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
477        (was _RL, now integer) with option = 0 to retrieve all levels.
478      - add pieces of code to compute velocity potential at each level (new diagnostics
479        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
480        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
481      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
482        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
483        and in diagnostics_fract_fill.F (do not need a valid pointer for the
484        diagnostics counter-mate); check that definition of counter-diagnostic
485        includes a valid counter-mate (in diagnostics_set_levels.F).
486    o model/src (rStar):
487      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
488        affect solution only if z* with full pressure in EOS;
489        update output of test-exp global_ocean.90x40x15.
490    o pkg/seaice:
491      - introduce siEps=1e-5 parameter
492      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
493      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
494      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
495        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
496        as well as ice cover age and ridging index (attached to AREA).
497        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
498        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
499        Up to SItrMaxNum=3 tracers can be used simultaneously.
500    o pkg/salt_plume:
501      -introduce SPsalFRAC run time parameter that sets the fraction of the
502       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
503       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
504    o model debug options:
505      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
506        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
507      - Refine debug-msg printing selection (3 new levels):
508        debugMode  : controls printing of debug messages (sequence of S/R calls).
509        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
510         debLevZero =  0 ; /* level of disabled aux. msg printing */
511         debLevA =  1 ; /* level of minimum  aux. msg printing */
512         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
513         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
514         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
515         debLevE =  5 ; /* level of extensive debug printing */
516        New debugLevel default: with default debugMode value (=F),
517          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
518          and if debugMode=T, default debugLevel = 4 (debLevD).
519        Relation with previous settings:
520         debLevB (=2) corresponds to former debLevA (=1)
521         debLevD (=4) corresponds to former debLevB (=2)
522        Note:
523         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
524         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
525            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
526      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
527        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
528    o pkg/obcs:
529      - change OBCSfixTopo default from True to False (should not change the results);
530        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
531    o pkg/thsice:
532      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
533        2nd layer seaice sublimation (unlikely to happen)
534      - use Interior mask for OBCS in thsice_advection.F (similar to what is
535        done in gad_advection & seaice_advection).
536    o adjoint:
537      bug fix spotted by Gael Forget:
538      seaice_advection and thsice_advection still had
539      legacy CPP options to avoid CS corner updates for adjoint
540    o pkg/seaice:
541      => Change some of the defaults (2011/05/29):
542         - change SEAICEuseFluxForm default (from False to True)
543         - change DIFF1 default (from 0.004 m/s to 0. m/s)
544         And print warnings if DIFF1 is not set in data.seaice and centered
545          avection scheme is used without any diffusion.
546      also:
547      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
548      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
549      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
550        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
551        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
552      update results of test exp.:
553         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
554             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
555             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
556         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
557         seaice_obcs: output (SEAICEuseFluxForm=T)
558      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
559          for standard fwd & AD lab_sea tests (to keep the same output).
560    o pkg/seaice/seaice_growth.F:
561      - use Ian Fenty's capping formulas for actual ice
562      thickness thoughout EVOLUTION branch.
563      - put treatment pathological case #2) in CPP brackets
564      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
565      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
566    o pkg/seaice:
567      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
568      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
569      also pass fac as a param, which can be 1. (to update the tendency
570      field) or the time step (to update the field itself).
571      - seaice_advdiff.F: for multidim, call seaice_diffusion with
572      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
573      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
574      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
575      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
576    o pkg/seaice:
577      diffusion with centered advection scheme (diffus.F & advect.F):
578      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
579        to just compute the laplacian of input-field.
580      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
581      - fix flux-form version in diffus.F to conserve tracer.
582      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
583       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
584    
585    checkpoint62y (2011/05/26)
586    o pkg/seaice:
587     - seaice_growth.F : in EVOLUTION branch, always include
588       a_QSWbyATM_cover in qnet (as it should be).
589     - verification/global_ocean.cs32x15 : update results accordingly
590       (output.seaice.txt output_adm.seaice.txt).
591    o pkg/seaice + obcs:
592     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
593       equivalent of assuming no tracer gradient outside the OB region.
594       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
595     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
596       after changes above);
597     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
598       only at OB location (instead of over a band of OLx width).
599    o pkg/seaice:
600     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
601       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
602    o pkg/obcs:
603      - split header file "OBCS.h" into 4 separated files:
604        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
605       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
606         (contain no conditional statement which depends on OBCS options).
607      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
608        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
609    o ctrl, cost, grdchk & autodiff pkgs:
610      - make options file more standard (like other {PKG}_OPTIONS.h file but
611        with AD_CONFIG.h); clean-up some of the included header files.
612    o pkg/obcs:
613      - do not mask tracer when applying OB (tracer == 0 could generate problems)
614      - apply tracer OB values to tracer field only at OB location (instead of
615        over a band of OLx width)
616      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
617      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
618        obcs_apply_tloc.F & obcs_apply_sloc.F
619    o obcs in model/src:
620      - call OBCS_APPLY_W only if NonHydrostatic.
621      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
622      - reset dEtaHdt and wVel to zero outside OB interior region ;
623      - leave tracer unchanged outside OB interior region: This has no effect
624        on the solution but just to prevent unrealistic tracer value outside OB.
625      - zero out velocity outside OB interior region: This has no effect on
626        the solution but just to prevent unrealistic velocity outside OB.
627    o obcs and non-lin free-surf:
628       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
629       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
630       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
631       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
632       update results of test-exp. exp4(nlfs).
633    o exp4 (nlfs) test-exp:
634       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
635       with NonLin-FreeSurf); update output.nlfs.txt
636    o obcs and 2d/3d solver norm:
637       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
638       and outside OB interior region (will allow to place OB further inside the
639       domain). Depending on the domain, can affects cg2d-Norm (previous
640       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
641       and cg3d-Norm (previous Norm was computed before canceling OB terms),
642       e.g. in tutorial_plume_on_slope.
643      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
644    o pkg rbcs:
645      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
646      - add capability to apply relaxation to horizontal velocity uVel & vVel.
647    o pkg/grdchk: add gradient check for control variable xx_shifwflx
648    o pkg/shelfice/shelfice_init_fixed.F
649      fix CPP-flag combinations
650    o pkg/seaice: Merge iceage code of Pierre Rampal
651      * update/change/correct ice age calculations
652      * add age updates for pathological cases
653      Probably needs more testing...
654    
655    checkpoint62x (2011/05/13)
656    o pkg/mom_vecinv:
657       high-order vorticity scheme: use interior masks (maskInW & S)
658       to zero-out (outside OB) gradient of vorticity.
659    o verification exp.:
660       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
661       hs94.128x64x5 and seaice_obcs ; update results.
662    o pkg/obcs:
663      fix bug in OBeta for YZ sections in obcs_exf_load.F
664    o pkg/ctrl, pkg/shelfice, and optim:
665      - add new control variable xx_shifwflx (fresh water flux underneath ice
666        shelves). This is almost as tedious as obcs-ctrl, because the
667        variables needs its own mask.
668      - add a cost function term that penalizes the deviation of xx_shifwflx
669        from the first guess (zero) in analogy to other control variables
670    o pkg/shelfice:
671      - start basic adjoint
672    o pkg/ctrl:
673      - remove extra 2D field "for good measure" when initializing in
674        ctrl_set_globfld_[xy/xz/yz].F
675      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
676      - improve error messages in ctrl_set_unpack_*
677    o OBC implementation in momentum:
678       use interior masks (maskInC,W & S) in momentum S/R:
679       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
680       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
681       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
682       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
683       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
684        (and also with Leith/Smagorinsky harmonic-viscosity).
685       Update output of experiment dome and exp4 (+nlfs).
686    o exp4 test-exp:
687      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
688        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
689        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
690        time-varying OB at Western-side for wVel (NonHyd); update output.
691      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
692        and biharmonic-viscosity ; also use prescribed time varying OB.
693    o pkg/obcs:
694      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
695    o model/src:
696      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
697      - initialise startTime & nIter0 with unlikely values: allows to set one
698        from the other without ambiguity.
699    o seaice_obcs test-exp.:
700      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
701    o pkg/obcs:
702      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
703        no longer needed with maskInC,W,S in pkg/generic_advdiff.
704    o pkg/seaice:
705      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
706        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
707      - fixed bug in the initialization of sea ice salinity variable HSALT
708        in seaice_init_varia.F  (removed dependence on ICE2WATR)
709    o fizhi-cs test exp.:
710       switch reference output convention for these 2 non-standard test-exp,
711        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
712          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
713       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
714    o model/inc:
715      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
716        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
717    o pkg/seaice:
718      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
719    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
720      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
721        and initial HSALT
722    
723    checkpoint62w (2011/04/26)
724    o pkg/mom_fluxform:
725      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
726      - use parameter "sideDragFactor" in no-slip BC side-drag part.
727      - update output of exp. global_ocean.90x40x15
728    o pkg/mom_vecinv:
729      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
730    o update seaice exp.:
731      use more consistent parameter values (remove "backward compatability only":
732       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
733      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
734       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
735    o update test-exp global_ocean.90x40x15:
736      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
737      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
738      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
739      o turn on zStar & viscA4 in standard set-up (dir input/)
740        and update output files: output.txt & output.dwnslp.txt
741    o new AD-test experiment: obcs_ctrl
742      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
743    o pkg/dic:
744      fix two bugs in handling water vapour pressure in carbonate chemistry
745      and air-sea fluxes. Found by Val Bennington and Galen McKinley
746      (add DIC Option = WATERVAP_BUG to recover old results)
747      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
748    o adding allowInteriorFreezing option to check for water below freezing point
749      at depth and bring the negative heat anomaly to the surface level
750    o pkgs _fields_load:
751      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
752      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
753        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
754        rbcs to get interpolation weights and time reccord number.
755      - fix multi-threading in aim_fields_load.F
756      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
757    o external_fields_load:
758      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
759       interpolation weights) to use in a periodic time-series ; do not divide by
760       time-step to convert to integer:
761       - this fixes case where externForcingPeriod is not multiple of time-step
762          (Thanks to Christopher L. Wolfe)
763       - this fixes case where externForcingPeriod is an odd multiple of time-step
764         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
765      store index of time-record which is currently loaded:
766       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
767       - needed for the adjoint but not yet used because of extensive recomputations;
768         (to be fixed soon)
769    
770    checkpoint62v (2011/04/02)
771    o verification/1D_ocean_ice_column added to test Ian Fenty's
772      pkg/seaice_growth.F modifications for improving sea ice code differentiability
773    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
774      (new velocity statistics after changing maskInW & maskInS definition)
775    o pkg/generic_advdiff with OBCS:
776      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
777      equivalent to assumption of no tracer gradient outside the OB region.
778      This will affect the results if using obcs+biharmonic diffusion.
779      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
780    o pkg/obcs:
781      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
782      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
783      in Interior region. No impact on solution but affects Velocity monitor stats.
784    o pkg/ptracers (adjoint)
785      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
786      tape file for each tracer
787    o model/inc/src and pkg/autodiff: add parameters that allow to turn
788      of parts of the adjoint code at run time. For now, there are only
789      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
790      parameters are set in data.pkg.
791      This is the lazy coward's version of doing this, but still useful for
792      debugging. In order to do it right, everything needs to be moved to
793      pkg/autodiff.
794    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
795      the end; this fixes the adjoint balancing code for open boundaries.
796    o pkg/ctrl:
797      - change behavior of xx_${varname}period to be analogous to exf-conventions:
798        xx_${varname}period =   0.,  means time-independent control part
799        xx_${varname}period = -12., means one-year-periodic monthly control part
800      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
801        clean up ctrl_init a little, remove unused variables
802      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
803      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
804    
805    checkpoint62u (2011/03/15)
806    o model/src:
807      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
808        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
809      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
810        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
811    o pkg/ctrl/obcs/ecco:
812      - remove obsolete, unused, and partially broken code:
813        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
814        ALLOW_CTRL_OBCS_BALANCE
815      - put a stop statement into ecco/cost_obcsvol.F, but also add
816        cost_obcsvol to ecco_ad_diff.list
817    o pkg/ecco: fix counting cost function contributions for obcs (code
818      by Matt M.) and diffkr for diagnostics
819    o pkg/ecco, pkg/ctrl, pkg/grdchk:
820      add cost penalty terms for initial uvel, vvel, eta controls
821      and I/O for prior error files
822    o pkg/mdsio:
823       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
824       (new argument) to check for tiled file in mdsioLocalDir : this fix the
825       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
826    o pkg/ctrl:
827     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
828       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
829       unused and superfluous variables
830     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
831    o pkg/ecco
832     - enable adjoint of Stevens OB
833    o pkg/ctrl/ecco/grdchk:
834      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
835        Fortunately, we do not have any tests for the numerous cpp-flagged
836        option of "obcs as control parameters" so we will never know
837        if this is an improvement (but at least now things compile).
838      - remove an obsolete initialization from ecco_cost_init_barfiles.F
839      - fix some problems within never used ifdefs to make the code compile
840    o pkg/obcs:
841     - Refine Interior mask definition to work with more complex OB (e.g.
842       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
843       read in Interior mask from file. Check if Interior mask is consistent
844       with OB list of indices.
845    o pkg/seaice
846     - beginning code for a seaice tracer package,
847       but currently only used for seaice age: SEAICE_AGE
848       SEAICE_num = 4
849       iTracer = 1: area-weighted ice age
850               = 2: volume-weighted ice age
851               = 3, 4: template for one-year vs. multi-year ice
852       data.seaice has new namelist SEAICE_PARM03 for arrays related to
853       SEAICE_num
854    
855    checkpoint62t (2011/03/05)
856    o pkg/obcs:
857     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
858       then normal component. This ensures that the normal component is set
859       correctly even when it conficts with tangential setting from an other OB.
860       Affects results of test-experiment seaice_obcs: update the output.txt
861    o pkg/obcs:
862     - add code to monitor statistics of dynamical fields at OB.
863     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
864       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
865       - change default: balance the Net inflow through all OB (instead of balancing
866         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
867     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
868       to match Nortern OB inflow (OBCS_balanceFacN=0).
869    o pkg/seaice:
870     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
871    o pkg/seaice (seaice_growth v 1.113):
872     - reverting seaice_growth to v 1.111 in order to have code with exact bit
873       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
874       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
875       runtime flag SEAICEareaFormula is kept but is inactive
876    o model/src:
877     - add new param to scale curvilinear grid distance and area when using
878       a different sphere radius from the grid-files.
879     - test/check multi-threads EXCH applied to local variable (cg2d_x)
880    o adjoint:
881     - enable adjoint of Stevens OB
882     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
883       (a bit delicate because of potentially modified adj. common block structure;
884       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
885    
886    checkpoint62s (2011/02/15)
887    o pkg/seaice (seaice_growth v 1.112):
888     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
889       computing the ice cover tendency from effective thickness tendencies. Include
890       Ian Fenty's formula.
891     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
892       SEAICEareaFormula.
893     - simplify notations for the various d_HEFF/d_AREA terms.
894    o pkg/gmredi:
895     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
896       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
897       add a verification test-run (front_relax.bvp) to test GM_useBVP.
898    o pkg/seaice (seaice_growth v 1.111):
899     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
900     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
901       also melt ice.
902    o pkg/seaice:
903     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
904     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
905  o pkg/cheapaml:  o pkg/cheapaml:
906   - from Nico Wienders: New version of this package.   - from Nico Wienders: New version of this package.
907  o pkg/flt:  o pkg/flt:

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