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revision 1.1374 by jmc, Sun Feb 6 00:24:40 2011 UTC revision 1.1546 by jmc, Fri Dec 9 01:01:11 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 model/src:
8      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
9        and fix initialisation when using sigma-coords.
10    o model/src:
11     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
12       to their current value at the beginning of forward_step.F": add a new run-time
13       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
14     - set doResetHFactors=T in the following test exp:
15        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
16        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
17        and tutorial_global_oce_in_p (nonLinFS in p)
18    o pkg/ecco
19      - added IES cost term
20    o verification/advect_xz
21      - scale down the depth by 1/100 (from 200 km to just 2.km)
22      - add secondary test using divergent flow, r-star and implicit vertical advection.
23      - add note (check_conserve_TS.txt) and matlab script to check global
24        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
25    o pkg/rbcs:
26      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
27    o pkg/obcs (Stevens BCs):
28      - fix various problems in the phase speed computations of the Stevens
29        boundary conditions:
30        - sign error for western and southern boundaries,
31        - time tendencies were underestimated by factor of dTracerLev and some just
32          zero (for multidim advection schemes) -> now estimate time tendencies
33          from difference between previous (n) time level and the one before (n-1);
34          this requires storing a field per tracer per boundary, also in the pickup
35          files.
36        - replace deltaTmom in cflMer/Zon computation with dTracerLev
37        - set default phase velocity to cflMer/Zon
38      - update verification experiment exp4.stevens
39    o pkg/generic_advdiff (implicit_r):
40      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
41        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
42      - fix implicit vertical diffusion or advection with NonLin FreeSurf
43        (was using current recip_hFacC instead of future recip_hFacC): set future
44        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
45        solver S/R ;
46      - fill diagnostics of vertical advective fluxes (computed from tendency)
47        when using implicit vert. advection;
48      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
49         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
50         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
51         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
52    o pkg/diagnostics:
53      - add diags for T & S tendency which goes through Adams-Bashforth.
54    
55    checkpoint63f (2011/11/30)
56    o pkg/obcs/obcs_calc_stevens.F:
57      - join some loops to reduce number of if-statements
58      - fix a bug in code for northern and southern boundaries.
59    o pkg/seaice/seaice_init_varia.F
60      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
61        caused zero ice-velocities for the B-grid code
62    o pkg/seaice/seaice_init_fixed.F
63      - fix a bug in the initialisation of the second metric terms
64        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
65      - this affects all seaice configurations with useCurviLinearGrid = .true.
66        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
67        = .true. (default)
68      - the only verification experiment affected is global_ocean.cs32x15:
69        icedyn, seaice, and seaice_dynmix (AD)
70    o pkg/thsice/thsice_diagnostics_state.F
71      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
72        not contain garbage that can lead to surprises in diagstats_calc.F
73    o model/src:
74      - move bi,bj loops inside INTEGR_CONTINUITY ;
75      - call INTEGR_CONTINUITY directly from forward_step.F
76        (previously called from momentum_correction_step.F)
77      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
78        forward_step.F and pkg/ecco/the_main_loop.F
79    o model/src/do_oceanic_phys.F:
80      - reset addMass to zero only if useICEFRONT ;
81      - separated k-loop for rhoInSitu calculation ;
82      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
83        and at constant T,S (= WdRHOdP);
84      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
85        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
86        transport of locally-referenced potential density);
87        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
88    o gluemnc:
89      - replace ncrcat with ncks when adding variables to *.glob.nc
90      - change the way variables without record dimensions are handled so that
91        files that have variables with and without record variables can be glued:
92        add a record dimension with a new unique name to be able to differentiate
93        between variable with and without a-prior record dimensions. Remove
94        this record dimension before adding the variable to the *.glob.nc file.
95        This procedure automatically works also for grid.*.nc files that do not
96        have any record dimension.
97    o verification/cpl_aim+ocn:
98      - generate new reference output on baudelaire (gfortran, mpich2) (previously
99        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
100    o pkg/obcs/obcs_calc_stevens.F:
101      - add code for northern and southern boundaries.
102      - reorder some loops to save some operations and so that drFBar can be scalar
103    o model/src:
104      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
105        truncation) and add diagnostics for Adams-Bashforth tendency increment.
106      - update test-exp. AD output:
107        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
108      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
109        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
110        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
111        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
112        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
113        tutorial_plume_on_slope.
114    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
115      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
116      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
117      does not even come with an F77 compiler anymore, this should not be
118      a limitation
119    
120    checkpoint63e (2011/11/06)
121    o pkg/seaice adjoint of LSR:
122      - substantially rework STORE dirs.
123      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
124        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
125        and only perform SOLV_MAX_FIXED adjoint iters.
126        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
127        always goes to same record, meaning that the last forward field will be
128        the one used in the adjoint - an approximation.
129      - now produces non-zero LSR-related gradients, and acceptable gradients for
130        An's zonal (x-z) test case (to be checked in)
131      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
132        (but these are screwed up by the thermodynamics in the first place);
133        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
134        output_adm.txt also reflects changes to seaice_lsr
135      - global_ocean.cs32x15:
136        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
137          (output_adm.seaice.txt was updated)
138        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
139          (output_adm.seaice_dynmix.txt)
140    o test-exp. exp4+stevens:
141      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
142    o pkg/seaice (lsr solver):
143      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
144        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
145      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
146      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
147        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
148      - compute (with new S/R) and print initial (+ free-driff sol. if available)
149        and final residual of linearised system.
150    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
151      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
152    o pkg/obcs: Stevens BCs (still only for east and west)
153      - fix Stevens BCs by using intermediate velocities of previous
154        time step as "baroclinic" contribution rather velocity of one grid cell
155        inside the boundaries; more consistent but makes the entire treatment
156        more complicated, requires new pickup files and two new S/Rs:
157        obcs_copy_uv_n and obcs_save_uv_n
158        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
159        (undefined by default)
160      - silently move computation of some grid factors into separate loops to
161        save some recomputations
162      - add a hack for non-linear free surface
163      - add a verification experiment to exp4 that tests this code
164    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
165    
166    checkpoint63d (2011/10/25)
167    o pkg/obcs + seaice-dynamics:
168      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
169        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
170        values (consistent with an implicit method).
171      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
172        return to older implementation (same results as before); note that none of
173        the "experimental" OBCS_SEAICE options are implemented in the new version.
174      - switch test exp. seaice_obcs to use new version (update output).
175    o pkg/seaice:
176      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
177      - add parenthesis in Water-Ice drag calculations (evp & lsr);
178      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
179        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
180      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
181        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
182    o pkg/layers:
183      - Include potential density as new coordinate (Thanks to David Munday)
184    o pkg/dic:
185      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
186        carbonate computation/output to CALC_PCO2_APPROX
187    o pkg/generic_advdiff
188      - make TAF generate code that vectorizes:
189        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
190    o model/src:
191      - improve vectorization also for adjoint code of
192        solve_tridiagonal and solve_pentadiagonal. As this requires up to
193        5 new 3D-fields, this code is only turned on for the combination of
194        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
195        for singular matrix check (only for TARGET_NEC_SX).
196      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
197        ALLOW_AUTODIFF. This flag now needs to be set outside of
198        solve_tri/pentadiagonal.F
199    o pkg/exf:
200      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
201        optional namelist EXF_NML_OBCS).
202      - add many debug-print (to trace down where pkg/cal error msg comes from)
203    o pkg/mom_vecinv/mom_vi_hdissip.F
204      - rearrange loops so that vectorization is improved and in particular
205        the adjoint routine vectorizes. The code is a little longer now, but I
206        think easier to read.
207        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
208    o pkg/seaice:
209      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
210    o pkg/exch2:
211      - alternative code (without tile x tile matrix) for cumulated (global) sum;
212        used as default; keep using matrix version in adjustment.cs-32x32x1.
213    o tools/build_options:
214      - after merging some MPI and/or multi-threads specific optfiles so that
215        the modified default optfile support both built (using genmake2 -mpi
216        for the MPI built, using genmake2 -omp for OpenMP built),
217        move now obsolete optfiles to tools/build_options/unsupported/
218       (add copy of email sent to support list in doc/optfiles_changes.txt)
219    
220    checkpoint63c (2011/09/28)
221    o pkg/ebm:
222      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
223        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
224    o pkg/seaice (SItracer pickup)
225    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
226      To be done:
227      - thorough testing of missing fields in S/R seaice_read_pickup
228      - thorough matching between generic tracers and specific fields used
229        (e.g. volume-weighted age, area-weighted age, salinity, ...)
230    o pkg/grdchk:
231      - all procs calculate and print finite-difference gradient (for testreport)
232      - change description output used by testreport;
233      - AD testing: also compare and report Finite-difference gradient;
234        => update all output_adm*.txt
235    o test exp. global_ocean_ebm:
236      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
237        and turn on exactConserve; update (fwd) output.
238    o pkg/seaice (LSR):
239      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
240      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
241        * identical results with non-CS topology (but save up to half of EXCH calls)
242        * no much changes in cs-32 verification tests since no ice at face edges
243         (differences due to convergence criteria, since nb of iterations changed)
244        * expect some differences on lat-lon-cap grid.
245        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
246    o pkg/exch2:
247      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
248        many tiles); until alternative coding is added, just add a stop.
249    o pkg/kpp:
250      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
251        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
252    o optfiles:
253      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
254        into corresponding standard one, which now support different build:
255        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
256      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
257    o pkg/obcs (seaice):
258      - add missing EXCH for uIce,vIce after applying OBCS;
259      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
260        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
261        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
262      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
263      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
264        and eedata.mth for MPI and mutlti-threaded testing.
265    o pkg/flt:
266      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
267      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
268      - fix pickup and trajectories + profiles output with multi-threads;
269      - add parameter to select group of fields to write along trajectory and
270        profile (default unchanged);
271      - only call PORT_RAND* function when flt_noise <> 0;
272      - add multi-threaded test for verification exp. flt_example.
273    o eesupp/src:
274      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
275      - USE_OMP_THREADING: check that number of threads (from eedata) matches
276        actual number (from env.var. setting).
277    o pkg/ebm:
278      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
279      - add multi-threaded test for verification exp. global_ocean_ebm
280    
281    checkpoint63b (2011/08/29)
282    o pkg/ebm:
283      - fix sign of runoff;
284      - update directly forcing fields (Qnet,EmPmR) to use standard
285        external_forcing_surf.F (remove ebm_forcing_surf.F);
286      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
287      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
288        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
289      - update global_ocean_ebm parameters file data and update output (fwd+ad).
290    o verification/matrix_example:
291      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
292        MPI and mutlti-threaded testing.
293    o pkg/matrix:
294      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
295      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
296      - fix for multi-threaded (remove DATA statement);
297      - use standard DIFFERENT_MULTIPLE function;
298      - add MATRIX_OPTIONS.h
299    o verification/matrix_example:
300       To allow to split the domain in several tiles, change the domain size
301        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
302        Western side) of land points.
303    o (*_)write_pickup:
304      - fix few bugs in mypackage_read/write_pickup.F
305      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
306        array of length 1 (was caught by compiler syntax-check).
307    o pkg/diagnostics (velocity potential solver):
308      - fix initialisation of main diagonal matrix (for overlap values)
309    o tools/build_options:
310      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
311        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
312      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
313        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
314        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
315        and use "-devel" testreport option for standard testing on baudelaire.
316    o pkg/grdchk:
317      - Assume that all gradient-check position are within the same tile
318        corresponding to global indices (iGloTile,jGloTile) and that
319        positions (i,j indices or nbeg) are local to this tile;
320      - set tile local-indices and proc. number according to tile global-indices;
321      - remove grdchkwhichproc from namelist (retired param);
322      - send adjoint gradient to all procs so that all procs print it to STDOUT;
323      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
324    o adding package bbl (Bottom Boundary Layer)
325      description in MITgcm/pkg/bbl/bbl_description.tex
326      example/test experiment in MITgcm_contrib/bbl
327    o adjoint verifications
328      - changed 5 experiments to multi-tiles
329        * global_ocean.90x40x15
330        * obcs_ctrl
331        * offline_exf_seaice
332        * tutorial_dic_adjoffline
333        * tutorial_tracer_adjsens
334        changed reference output for those that crossed tile boundaries
335        (changed choices of gradient check positions)
336      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
337      - temporary bug fix in grdchk_loc.F for obcs
338    o genmake2 & testreport
339      - add target "obj" (just for OBJFILES files) to Makefile;
340      - add option to specify FEXTRAFLAGS on command line.
341    o pkg/mypackage:
342      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
343    
344    checkpoint63a (2011/08/02)
345    o pkg/diagnostics (velocity potential):
346      - fix velocity-potential calculation when using OBCS: balance net inflow
347        at each level (new S/R OBCS_DIAG_BALANCE).
348      - fix some of the problems with OBCS in stream-function calculation.
349    o pkg/exf/exf_readparms.F
350      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
351        EXF_NML_OBCS) more consistent, so that you need not have these lists
352        in data.exf when they are not used.
353    o optim/optim_readdata.F:
354      - add some output about obcs variables that might help debugging
355      - add a check about nvarlength
356    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
357    o pkg/diagnostics (velocity potential):
358      - fix mask for OBCS (still problems in stream-function with OBCS);
359      - add specific parameter (default = main code CG2D params) for solver;
360      - in case of poor convergence, use solution corresponding to lowest residual.
361    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
362      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
363      and should be avoided where possible.
364    o model/src (rStar):
365      - include r* effect on reference-state (PhiRef) in totPhiHyd
366        (so that it's really the potential anomaly at the cell center);
367        affect solution only if z* with full pressure in EOS.
368      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
369        update output (because of z* in totPhiHyd and viscA4 changes);
370      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
371        @ constant r) until interpolation at constant r is implemented.
372    o pkg/diagnostics
373      - fix RCENTER diagnostics in case cell center is not at interface middle
374    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
375      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
376      that THETA and SALT are "conservative temperature" and "absolute
377      salinity"
378    o pkg/ctrl
379      - fix computation of endrec in s/r ctrl_init_rec
380      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
381    o pkg/seaice/seaice_growth.F
382      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
383        remove then obsolete STORE directives
384      - fix STORE directives for tice and tices, so that only the
385        appropriate part of the fields are stored (and not the entire
386        field); update global_ocean.cs32x15.seaice AD output.
387      - cosmetic changes: adjust CPP flags and indentation for better
388        legibilty
389    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
390      Chris Wilson)
391    o pkg/gmredi:
392       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
393       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
394    
395    checkpoint63  (2011/07/11)
396    o pkg/exch2:
397     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
398     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
399       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
400       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
401    o pkg/diagnostics:
402     - deal with pairs of post-processed diags which are computed together; in
403       particular, re-order list of diags within 1 file to save 2nd computation.
404     - add S/R to compute velocity stream-function (called after velocity-potential
405       calculation) from divergence free transport -> new diagnostics "PsiVEL".
406     - add parameter to select grid-point location where PsiVEL == 0.
407    o eesupp/src:
408       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
409       (specific S/R needed with exch2 topology - for now, just print an error msg)
410    o pkg/shelfice
411     - Implement friction velocity-dependent transfer coefficients following
412       Holland and Jenkins, JPO, 1999
413       Original code by M. Losch with small modifs.
414       Enable with CPP option SHI_ALLOW_GAMMAFRICT
415       and runtime flag SHELFICEuseGammaFrict
416    o verification lab_sea & global_ocean.cs32x15:
417     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
418       does not miss some dependencies (but is slower) and also works with many files
419       (default makedepend limitation for AD built).
420     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
421    o pkg/diagnostics:
422     - add run-time parameter "useMissingValue" (def=False) to fill land-point
423        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
424       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
425     - Extend the use of "missing_value" setting from data.diagnostics for the case
426       of counter-diagnostics (where fraction-weight is zero). This applies both to
427       MNC and MDS output files.
428    o pkg/seaice/seaice_growth.F:
429      - add 'a priori' cap of latent heat flux based on actual mass considerations
430        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
431        non-legacy seaice_solve4temp.
432      - add diagnostic of the residual sublimation freshwater flux (the freshwater
433        flux taken from the ocean if the total actual latent heat fluxes exceed
434        the maximum)
435      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
436       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
437      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
438       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
439      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
440      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
441    o verification 1D_ocean_ice_column:
442       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
443       update results
444    o pkg/diagnostics:
445     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
446       which are not filled-up but computed from other diags ; In this case, the mate
447       diag points to the primary (filled-up) diag to used for post processing.
448     - Update Velocity-potential computation using post-processed diag framework.
449     ==> Change the ordering of fields and time-periods in MDS output file
450       when using periodic averaging: now writes one time record with the full set
451       of fields for this time period, then the next time reccord (it used to be
452       one field with the full set of time records then the next field).
453         Note: this is now similar to NetCDF (MNC) output file. <==
454    
455    checkpoint62z (2011/06/21)
456    o adjoint monitor:
457     - Add adjoint monitor output for packages exf, seaice
458       and update relevant testreport output
459    o pkg/seaice:
460     - re-order diags inits so that they appear in order in available_diagnostics.log
461     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
462       area/heff/hsnow preceeding thermodynamic growth/melt.
463     - modified diag: SIdA; output actual effect, as the description states.
464     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
465     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
466       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
467        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
468     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
469     - added diagnostics for seaice generic tracers (SItr*).
470     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
471     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
472     I. Fenty: 18-Jun-2011:
473     Minor changes to seaice package:
474     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
475        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
476       - Differentiated "regularization variables" from "floor variables"
477        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
478        * hiceMin became SEAICE_hice_reg (old hiceMin)
479          (with _reg meaning regularization variable)
480       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
481        so as to ensure energy conservation when going between phases
482      - A22 was not used anywhere
483     2) Changed regularization procedure for heffActual and hsnowActual to ensure
484        well-boundedness and smooth adjoint in seaice_growth.F
485     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
486        because the old regularization always set heffActual >= 0.05 cm
487     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
488        on AREA when HEFF > 0.
489      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
490        requiring that DISABLE_AREA_FLOOR *not* be defined
491     Affected verifications:
492      - 1D_ocean_ice_column (output.txt output_adm.txt)
493      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
494    o pkg/diagnostics:
495      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
496      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
497        (was _RL, now integer) with option = 0 to retrieve all levels.
498      - add pieces of code to compute velocity potential at each level (new diagnostics
499        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
500        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
501      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
502        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
503        and in diagnostics_fract_fill.F (do not need a valid pointer for the
504        diagnostics counter-mate); check that definition of counter-diagnostic
505        includes a valid counter-mate (in diagnostics_set_levels.F).
506    o model/src (rStar):
507      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
508        affect solution only if z* with full pressure in EOS;
509        update output of test-exp global_ocean.90x40x15.
510    o pkg/seaice:
511      - introduce siEps=1e-5 parameter
512      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
513      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
514      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
515        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
516        as well as ice cover age and ridging index (attached to AREA).
517        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
518        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
519        Up to SItrMaxNum=3 tracers can be used simultaneously.
520    o pkg/salt_plume:
521      -introduce SPsalFRAC run time parameter that sets the fraction of the
522       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
523       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
524    o model debug options:
525      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
526        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
527      - Refine debug-msg printing selection (3 new levels):
528        debugMode  : controls printing of debug messages (sequence of S/R calls).
529        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
530         debLevZero =  0 ; /* level of disabled aux. msg printing */
531         debLevA =  1 ; /* level of minimum  aux. msg printing */
532         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
533         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
534         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
535         debLevE =  5 ; /* level of extensive debug printing */
536        New debugLevel default: with default debugMode value (=F),
537          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
538          and if debugMode=T, default debugLevel = 4 (debLevD).
539        Relation with previous settings:
540         debLevB (=2) corresponds to former debLevA (=1)
541         debLevD (=4) corresponds to former debLevB (=2)
542        Note:
543         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
544         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
545            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
546      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
547        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
548    o pkg/obcs:
549      - change OBCSfixTopo default from True to False (should not change the results);
550        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
551    o pkg/thsice:
552      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
553        2nd layer seaice sublimation (unlikely to happen)
554      - use Interior mask for OBCS in thsice_advection.F (similar to what is
555        done in gad_advection & seaice_advection).
556    o adjoint:
557      bug fix spotted by Gael Forget:
558      seaice_advection and thsice_advection still had
559      legacy CPP options to avoid CS corner updates for adjoint
560    o pkg/seaice:
561      => Change some of the defaults (2011/05/29):
562         - change SEAICEuseFluxForm default (from False to True)
563         - change DIFF1 default (from 0.004 m/s to 0. m/s)
564         And print warnings if DIFF1 is not set in data.seaice and centered
565          avection scheme is used without any diffusion.
566      also:
567      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
568      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
569      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
570        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
571        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
572      update results of test exp.:
573         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
574             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
575             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
576         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
577         seaice_obcs: output (SEAICEuseFluxForm=T)
578      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
579          for standard fwd & AD lab_sea tests (to keep the same output).
580    o pkg/seaice/seaice_growth.F:
581      - use Ian Fenty's capping formulas for actual ice
582      thickness thoughout EVOLUTION branch.
583      - put treatment pathological case #2) in CPP brackets
584      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
585      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
586    o pkg/seaice:
587      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
588      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
589      also pass fac as a param, which can be 1. (to update the tendency
590      field) or the time step (to update the field itself).
591      - seaice_advdiff.F: for multidim, call seaice_diffusion with
592      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
593      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
594      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
595      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
596    o pkg/seaice:
597      diffusion with centered advection scheme (diffus.F & advect.F):
598      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
599        to just compute the laplacian of input-field.
600      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
601      - fix flux-form version in diffus.F to conserve tracer.
602      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
603       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
604    
605    checkpoint62y (2011/05/26)
606    o pkg/seaice:
607     - seaice_growth.F : in EVOLUTION branch, always include
608       a_QSWbyATM_cover in qnet (as it should be).
609     - verification/global_ocean.cs32x15 : update results accordingly
610       (output.seaice.txt output_adm.seaice.txt).
611    o pkg/seaice + obcs:
612     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
613       equivalent of assuming no tracer gradient outside the OB region.
614       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
615     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
616       after changes above);
617     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
618       only at OB location (instead of over a band of OLx width).
619    o pkg/seaice:
620     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
621       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
622    o pkg/obcs:
623      - split header file "OBCS.h" into 4 separated files:
624        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
625       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
626         (contain no conditional statement which depends on OBCS options).
627      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
628        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
629    o ctrl, cost, grdchk & autodiff pkgs:
630      - make options file more standard (like other {PKG}_OPTIONS.h file but
631        with AD_CONFIG.h); clean-up some of the included header files.
632    o pkg/obcs:
633      - do not mask tracer when applying OB (tracer == 0 could generate problems)
634      - apply tracer OB values to tracer field only at OB location (instead of
635        over a band of OLx width)
636      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
637      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
638        obcs_apply_tloc.F & obcs_apply_sloc.F
639    o obcs in model/src:
640      - call OBCS_APPLY_W only if NonHydrostatic.
641      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
642      - reset dEtaHdt and wVel to zero outside OB interior region ;
643      - leave tracer unchanged outside OB interior region: This has no effect
644        on the solution but just to prevent unrealistic tracer value outside OB.
645      - zero out velocity outside OB interior region: This has no effect on
646        the solution but just to prevent unrealistic velocity outside OB.
647    o obcs and non-lin free-surf:
648       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
649       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
650       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
651       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
652       update results of test-exp. exp4(nlfs).
653    o exp4 (nlfs) test-exp:
654       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
655       with NonLin-FreeSurf); update output.nlfs.txt
656    o obcs and 2d/3d solver norm:
657       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
658       and outside OB interior region (will allow to place OB further inside the
659       domain). Depending on the domain, can affects cg2d-Norm (previous
660       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
661       and cg3d-Norm (previous Norm was computed before canceling OB terms),
662       e.g. in tutorial_plume_on_slope.
663      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
664    o pkg rbcs:
665      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
666      - add capability to apply relaxation to horizontal velocity uVel & vVel.
667    o pkg/grdchk: add gradient check for control variable xx_shifwflx
668    o pkg/shelfice/shelfice_init_fixed.F
669      fix CPP-flag combinations
670    o pkg/seaice: Merge iceage code of Pierre Rampal
671      * update/change/correct ice age calculations
672      * add age updates for pathological cases
673      Probably needs more testing...
674    
675    checkpoint62x (2011/05/13)
676    o pkg/mom_vecinv:
677       high-order vorticity scheme: use interior masks (maskInW & S)
678       to zero-out (outside OB) gradient of vorticity.
679    o verification exp.:
680       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
681       hs94.128x64x5 and seaice_obcs ; update results.
682    o pkg/obcs:
683      fix bug in OBeta for YZ sections in obcs_exf_load.F
684    o pkg/ctrl, pkg/shelfice, and optim:
685      - add new control variable xx_shifwflx (fresh water flux underneath ice
686        shelves). This is almost as tedious as obcs-ctrl, because the
687        variables needs its own mask.
688      - add a cost function term that penalizes the deviation of xx_shifwflx
689        from the first guess (zero) in analogy to other control variables
690    o pkg/shelfice:
691      - start basic adjoint
692    o pkg/ctrl:
693      - remove extra 2D field "for good measure" when initializing in
694        ctrl_set_globfld_[xy/xz/yz].F
695      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
696      - improve error messages in ctrl_set_unpack_*
697    o OBC implementation in momentum:
698       use interior masks (maskInC,W & S) in momentum S/R:
699       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
700       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
701       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
702       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
703       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
704        (and also with Leith/Smagorinsky harmonic-viscosity).
705       Update output of experiment dome and exp4 (+nlfs).
706    o exp4 test-exp:
707      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
708        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
709        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
710        time-varying OB at Western-side for wVel (NonHyd); update output.
711      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
712        and biharmonic-viscosity ; also use prescribed time varying OB.
713    o pkg/obcs:
714      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
715    o model/src:
716      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
717      - initialise startTime & nIter0 with unlikely values: allows to set one
718        from the other without ambiguity.
719    o seaice_obcs test-exp.:
720      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
721    o pkg/obcs:
722      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
723        no longer needed with maskInC,W,S in pkg/generic_advdiff.
724    o pkg/seaice:
725      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
726        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
727      - fixed bug in the initialization of sea ice salinity variable HSALT
728        in seaice_init_varia.F  (removed dependence on ICE2WATR)
729    o fizhi-cs test exp.:
730       switch reference output convention for these 2 non-standard test-exp,
731        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
732          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
733       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
734    o model/inc:
735      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
736        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
737    o pkg/seaice:
738      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
739    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
740      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
741        and initial HSALT
742    
743    checkpoint62w (2011/04/26)
744    o pkg/mom_fluxform:
745      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
746      - use parameter "sideDragFactor" in no-slip BC side-drag part.
747      - update output of exp. global_ocean.90x40x15
748    o pkg/mom_vecinv:
749      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
750    o update seaice exp.:
751      use more consistent parameter values (remove "backward compatability only":
752       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
753      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
754       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
755    o update test-exp global_ocean.90x40x15:
756      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
757      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
758      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
759      o turn on zStar & viscA4 in standard set-up (dir input/)
760        and update output files: output.txt & output.dwnslp.txt
761    o new AD-test experiment: obcs_ctrl
762      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
763    o pkg/dic:
764      fix two bugs in handling water vapour pressure in carbonate chemistry
765      and air-sea fluxes. Found by Val Bennington and Galen McKinley
766      (add DIC Option = WATERVAP_BUG to recover old results)
767      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
768    o adding allowInteriorFreezing option to check for water below freezing point
769      at depth and bring the negative heat anomaly to the surface level
770    o pkgs _fields_load:
771      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
772      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
773        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
774        rbcs to get interpolation weights and time reccord number.
775      - fix multi-threading in aim_fields_load.F
776      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
777    o external_fields_load:
778      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
779       interpolation weights) to use in a periodic time-series ; do not divide by
780       time-step to convert to integer:
781       - this fixes case where externForcingPeriod is not multiple of time-step
782          (Thanks to Christopher L. Wolfe)
783       - this fixes case where externForcingPeriod is an odd multiple of time-step
784         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
785      store index of time-record which is currently loaded:
786       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
787       - needed for the adjoint but not yet used because of extensive recomputations;
788         (to be fixed soon)
789    
790    checkpoint62v (2011/04/02)
791    o verification/1D_ocean_ice_column added to test Ian Fenty's
792      pkg/seaice_growth.F modifications for improving sea ice code differentiability
793    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
794      (new velocity statistics after changing maskInW & maskInS definition)
795    o pkg/generic_advdiff with OBCS:
796      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
797      equivalent to assumption of no tracer gradient outside the OB region.
798      This will affect the results if using obcs+biharmonic diffusion.
799      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
800    o pkg/obcs:
801      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
802      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
803      in Interior region. No impact on solution but affects Velocity monitor stats.
804    o pkg/ptracers (adjoint)
805      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
806      tape file for each tracer
807    o model/inc/src and pkg/autodiff: add parameters that allow to turn
808      of parts of the adjoint code at run time. For now, there are only
809      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
810      parameters are set in data.pkg.
811      This is the lazy coward's version of doing this, but still useful for
812      debugging. In order to do it right, everything needs to be moved to
813      pkg/autodiff.
814    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
815      the end; this fixes the adjoint balancing code for open boundaries.
816    o pkg/ctrl:
817      - change behavior of xx_${varname}period to be analogous to exf-conventions:
818        xx_${varname}period =   0.,  means time-independent control part
819        xx_${varname}period = -12., means one-year-periodic monthly control part
820      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
821        clean up ctrl_init a little, remove unused variables
822      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
823      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
824    
825    checkpoint62u (2011/03/15)
826    o model/src:
827      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
828        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
829      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
830        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
831    o pkg/ctrl/obcs/ecco:
832      - remove obsolete, unused, and partially broken code:
833        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
834        ALLOW_CTRL_OBCS_BALANCE
835      - put a stop statement into ecco/cost_obcsvol.F, but also add
836        cost_obcsvol to ecco_ad_diff.list
837    o pkg/ecco: fix counting cost function contributions for obcs (code
838      by Matt M.) and diffkr for diagnostics
839    o pkg/ecco, pkg/ctrl, pkg/grdchk:
840      add cost penalty terms for initial uvel, vvel, eta controls
841      and I/O for prior error files
842    o pkg/mdsio:
843       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
844       (new argument) to check for tiled file in mdsioLocalDir : this fix the
845       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
846    o pkg/ctrl:
847     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
848       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
849       unused and superfluous variables
850     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
851    o pkg/ecco
852     - enable adjoint of Stevens OB
853    o pkg/ctrl/ecco/grdchk:
854      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
855        Fortunately, we do not have any tests for the numerous cpp-flagged
856        option of "obcs as control parameters" so we will never know
857        if this is an improvement (but at least now things compile).
858      - remove an obsolete initialization from ecco_cost_init_barfiles.F
859      - fix some problems within never used ifdefs to make the code compile
860    o pkg/obcs:
861     - Refine Interior mask definition to work with more complex OB (e.g.
862       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
863       read in Interior mask from file. Check if Interior mask is consistent
864       with OB list of indices.
865    o pkg/seaice
866     - beginning code for a seaice tracer package,
867       but currently only used for seaice age: SEAICE_AGE
868       SEAICE_num = 4
869       iTracer = 1: area-weighted ice age
870               = 2: volume-weighted ice age
871               = 3, 4: template for one-year vs. multi-year ice
872       data.seaice has new namelist SEAICE_PARM03 for arrays related to
873       SEAICE_num
874    
875    checkpoint62t (2011/03/05)
876    o pkg/obcs:
877     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
878       then normal component. This ensures that the normal component is set
879       correctly even when it conficts with tangential setting from an other OB.
880       Affects results of test-experiment seaice_obcs: update the output.txt
881    o pkg/obcs:
882     - add code to monitor statistics of dynamical fields at OB.
883     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
884       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
885       - change default: balance the Net inflow through all OB (instead of balancing
886         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
887     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
888       to match Nortern OB inflow (OBCS_balanceFacN=0).
889    o pkg/seaice:
890     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
891    o pkg/seaice (seaice_growth v 1.113):
892     - reverting seaice_growth to v 1.111 in order to have code with exact bit
893       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
894       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
895       runtime flag SEAICEareaFormula is kept but is inactive
896    o model/src:
897     - add new param to scale curvilinear grid distance and area when using
898       a different sphere radius from the grid-files.
899     - test/check multi-threads EXCH applied to local variable (cg2d_x)
900    o adjoint:
901     - enable adjoint of Stevens OB
902     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
903       (a bit delicate because of potentially modified adj. common block structure;
904       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
905    
906    checkpoint62s (2011/02/15)
907    o pkg/seaice (seaice_growth v 1.112):
908     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
909       computing the ice cover tendency from effective thickness tendencies. Include
910       Ian Fenty's formula.
911     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
912       SEAICEareaFormula.
913     - simplify notations for the various d_HEFF/d_AREA terms.
914    o pkg/gmredi:
915     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
916       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
917       add a verification test-run (front_relax.bvp) to test GM_useBVP.
918    o pkg/seaice (seaice_growth v 1.111):
919     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
920     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
921       also melt ice.
922    o pkg/seaice:
923     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
924     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
925  o pkg/cheapaml:  o pkg/cheapaml:
926   - from Nico Wienders: New version of this package.   - from Nico Wienders: New version of this package.
927  o pkg/flt:  o pkg/flt:

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