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revision 1.1295 by jmc, Sat Sep 11 21:39:13 2010 UTC revision 1.1471 by jmc, Wed Jul 6 01:50:38 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/diagnostics:
8     - deal with pairs of post-processed diags which are computed together; in
9       particular, re-order list of diags within 1 file to save 2nd computation.
10     - add S/R to compute velocity stream-function (called after velocity-potential
11       calculation) from divergence free transport -> new diagnostics "PsiVEL".
12     - add parameter to select grid-point location where PsiVEL == 0.
13    o eesupp/src:
14       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
15       (specific S/R needed with exch2 topology - for now, just print an error msg)
16    o pkg/shelfice
17     - Implement friction velocity-dependent transfer coefficients following
18       Holland and Jenkins, JPO, 1999
19       Original code by M. Losch with small modifs.
20       Enable with CPP option SHI_ALLOW_GAMMAFRICT
21       and runtime flag SHELFICEuseGammaFrict
22    o verification lab_sea & global_ocean.cs32x15:
23     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
24       does not miss some dependencies (but is slower) and also works with many files
25       (default makedepend limitation for AD built).
26     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
27    o pkg/diagnostics:
28     - add run-time parameter "useMissingValue" (def=False) to fill land-point
29        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
30       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
31     - Extend the use of "missing_value" setting from data.diagnostics for the case
32       of counter-diagnostics (where fraction-weight is zero). This applies both to
33       MNC and MDS output files.
34    o pkg/seaice/seaice_growth.F:
35      - add 'a priori' cap of latent heat flux based on actual mass considerations
36        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
37        non-legacy seaice_solve4temp.
38      - add diagnostic of the residual sublimation freshwater flux (the freshwater
39        flux taken from the ocean if the total actual latent heat fluxes exceed
40        the maximum)
41      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
42       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
43      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
44       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
45      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
46      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
47    o verification 1D_ocean_ice_column:
48       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
49       update results
50    o pkg/diagnostics:
51     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
52       which are not filled-up but computed from other diags ; In this case, the mate
53       diag points to the primary (filled-up) diag to used for post processing.
54     - Update Velocity-potential computation using post-processed diag framework.
55     ==> Change the ordering of fields and time-periods in MDS output file
56       when using periodic averaging: now writes one time record with the full set
57       of fields for this time period, then the next time reccord (it used to be
58       one field with the full set of time records then the next field).
59         Note: this is now similar to NetCDF (MNC) output file. <==
60    
61    checkpoint62z (2011/06/21)
62    o adjoint monitor:
63     - Add adjoint monitor output for packages exf, seaice
64       and update relevant testreport output
65    o pkg/seaice:
66     - re-order diags inits so that they appear in order in available_diagnostics.log
67     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
68       area/heff/hsnow preceeding thermodynamic growth/melt.
69     - modified diag: SIdA; output actual effect, as the description states.
70     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
71     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
72       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
73        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
74     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
75     - added diagnostics for seaice generic tracers (SItr*).
76     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
77     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
78     I. Fenty: 18-Jun-2011:
79     Minor changes to seaice package:
80     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
81        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
82       - Differentiated "regularization variables" from "floor variables"
83        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
84        * hiceMin became SEAICE_hice_reg (old hiceMin)
85          (with _reg meaning regularization variable)
86       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
87        so as to ensure energy conservation when going between phases
88      - A22 was not used anywhere
89     2) Changed regularization procedure for heffActual and hsnowActual to ensure
90        well-boundedness and smooth adjoint in seaice_growth.F
91     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
92        because the old regularization always set heffActual >= 0.05 cm
93     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
94        on AREA when HEFF > 0.
95      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
96        requiring that DISABLE_AREA_FLOOR *not* be defined
97     Affected verifications:
98      - 1D_ocean_ice_column (output.txt output_adm.txt)
99      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
100    o pkg/diagnostics:
101      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
102      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
103        (was _RL, now integer) with option = 0 to retrieve all levels.
104      - add pieces of code to compute velocity potential at each level (new diagnostics
105        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
106        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
107      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
108        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
109        and in diagnostics_fract_fill.F (do not need a valid pointer for the
110        diagnostics counter-mate); check that definition of counter-diagnostic
111        includes a valid counter-mate (in diagnostics_set_levels.F).
112    o model/src (rStar):
113      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
114        affect solution only if z* with full pressure in EOS;
115        update output of test-exp global_ocean.90x40x15.
116    o pkg/seaice:
117      - introduce siEps=1e-5 parameter
118      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
119      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
120      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
121        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
122        as well as ice cover age and ridging index (attached to AREA).
123        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
124        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
125        Up to SItrMaxNum=3 tracers can be used simultaneously.
126    o pkg/salt_plume:
127      -introduce SPsalFRAC run time parameter that sets the fraction of the
128       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
129       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
130    o model debug options:
131      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
132        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
133      - Refine debug-msg printing selection (3 new levels):
134        debugMode  : controls printing of debug messages (sequence of S/R calls).
135        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
136         debLevZero =  0 ; /* level of disabled aux. msg printing */
137         debLevA =  1 ; /* level of minimum  aux. msg printing */
138         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
139         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
140         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
141         debLevE =  5 ; /* level of extensive debug printing */
142        New debugLevel default: with default debugMode value (=F),
143          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
144          and if debugMode=T, default debugLevel = 4 (debLevD).
145        Relation with previous settings:
146         debLevB (=2) corresponds to former debLevA (=1)
147         debLevD (=4) corresponds to former debLevB (=2)
148        Note:
149         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
150         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
151            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
152      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
153        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
154    o pkg/obcs:
155      - change OBCSfixTopo default from True to False (should not change the results);
156        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
157    o pkg/thsice:
158      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
159        2nd layer seaice sublimation (unlikely to happen)
160      - use Interior mask for OBCS in thsice_advection.F (similar to what is
161        done in gad_advection & seaice_advection).
162    o adjoint:
163      bug fix spotted by Gael Forget:
164      seaice_advection and thsice_advection still had
165      legacy CPP options to avoid CS corner updates for adjoint
166    o pkg/seaice:
167      => Change some of the defaults (2011/05/29):
168         - change SEAICEuseFluxForm default (from False to True)
169         - change DIFF1 default (from 0.004 m/s to 0. m/s)
170         And print warnings if DIFF1 is not set in data.seaice and centered
171          avection scheme is used without any diffusion.
172      also:
173      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
174      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
175      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
176        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
177        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
178      update results of test exp.:
179         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
180             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
181             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
182         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
183         seaice_obcs: output (SEAICEuseFluxForm=T)
184      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
185          for standard fwd & AD lab_sea tests (to keep the same output).
186    o pkg/seaice/seaice_growth.F:
187      - use Ian Fenty's capping formulas for actual ice
188      thickness thoughout EVOLUTION branch.
189      - put treatment pathological case #2) in CPP brackets
190      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
191      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
192    o pkg/seaice:
193      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
194      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
195      also pass fac as a param, which can be 1. (to update the tendency
196      field) or the time step (to update the field itself).
197      - seaice_advdiff.F: for multidim, call seaice_diffusion with
198      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
199      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
200      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
201      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
202    o pkg/seaice:
203      diffusion with centered advection scheme (diffus.F & advect.F):
204      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
205        to just compute the laplacian of input-field.
206      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
207      - fix flux-form version in diffus.F to conserve tracer.
208      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
209       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
210    
211    checkpoint62y (2011/05/26)
212    o pkg/seaice:
213     - seaice_growth.F : in EVOLUTION branch, always include
214       a_QSWbyATM_cover in qnet (as it should be).
215     - verification/global_ocean.cs32x15 : update results accordingly
216       (output.seaice.txt output_adm.seaice.txt).
217    o pkg/seaice + obcs:
218     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
219       equivalent of assuming no tracer gradient outside the OB region.
220       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
221     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
222       after changes above);
223     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
224       only at OB location (instead of over a band of OLx width).
225    o pkg/seaice:
226     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
227       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
228    o pkg/obcs:
229      - split header file "OBCS.h" into 4 separated files:
230        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
231       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
232         (contain no conditional statement which depends on OBCS options).
233      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
234        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
235    o ctrl, cost, grdchk & autodiff pkgs:
236      - make options file more standard (like other {PKG}_OPTIONS.h file but
237        with AD_CONFIG.h); clean-up some of the included header files.
238    o pkg/obcs:
239      - do not mask tracer when applying OB (tracer == 0 could generate problems)
240      - apply tracer OB values to tracer field only at OB location (instead of
241        over a band of OLx width)
242      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
243      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
244        obcs_apply_tloc.F & obcs_apply_sloc.F
245    o obcs in model/src:
246      - call OBCS_APPLY_W only if NonHydrostatic.
247      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
248      - reset dEtaHdt and wVel to zero outside OB interior region ;
249      - leave tracer unchanged outside OB interior region: This has no effect
250        on the solution but just to prevent unrealistic tracer value outside OB.
251      - zero out velocity outside OB interior region: This has no effect on
252        the solution but just to prevent unrealistic velocity outside OB.
253    o obcs and non-lin free-surf:
254       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
255       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
256       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
257       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
258       update results of test-exp. exp4(nlfs).
259    o exp4 (nlfs) test-exp:
260       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
261       with NonLin-FreeSurf); update output.nlfs.txt
262    o obcs and 2d/3d solver norm:
263       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
264       and outside OB interior region (will allow to place OB further inside the
265       domain). Depending on the domain, can affects cg2d-Norm (previous
266       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
267       and cg3d-Norm (previous Norm was computed before canceling OB terms),
268       e.g. in tutorial_plume_on_slope.
269      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
270    o pkg rbcs:
271      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
272      - add capability to apply relaxation to horizontal velocity uVel & vVel.
273    o pkg/grdchk: add gradient check for control variable xx_shifwflx
274    o pkg/shelfice/shelfice_init_fixed.F
275      fix CPP-flag combinations
276    o pkg/seaice: Merge iceage code of Pierre Rampal
277      * update/change/correct ice age calculations
278      * add age updates for pathological cases
279      Probably needs more testing...
280    
281    checkpoint62x (2011/05/13)
282    o pkg/mom_vecinv:
283       high-order vorticity scheme: use interior masks (maskInW & S)
284       to zero-out (outside OB) gradient of vorticity.
285    o verification exp.:
286       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
287       hs94.128x64x5 and seaice_obcs ; update results.
288    o pkg/obcs:
289      fix bug in OBeta for YZ sections in obcs_exf_load.F
290    o pkg/ctrl, pkg/shelfice, and optim:
291      - add new control variable xx_shifwflx (fresh water flux underneath ice
292        shelves). This is almost as tedious as obcs-ctrl, because the
293        variables needs its own mask.
294      - add a cost function term that penalizes the deviation of xx_shifwflx
295        from the first guess (zero) in analogy to other control variables
296    o pkg/shelfice:
297      - start basic adjoint
298    o pkg/ctrl:
299      - remove extra 2D field "for good measure" when initializing in
300        ctrl_set_globfld_[xy/xz/yz].F
301      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
302      - improve error messages in ctrl_set_unpack_*
303    o OBC implementation in momentum:
304       use interior masks (maskInC,W & S) in momentum S/R:
305       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
306       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
307       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
308       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
309       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
310        (and also with Leith/Smagorinsky harmonic-viscosity).
311       Update output of experiment dome and exp4 (+nlfs).
312    o exp4 test-exp:
313      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
314        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
315        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
316        time-varying OB at Western-side for wVel (NonHyd); update output.
317      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
318        and biharmonic-viscosity ; also use prescribed time varying OB.
319    o pkg/obcs:
320      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
321    o model/src:
322      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
323      - initialise startTime & nIter0 with unlikely values: allows to set one
324        from the other without ambiguity.
325    o seaice_obcs test-exp.:
326      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
327    o pkg/obcs:
328      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
329        no longer needed with maskInC,W,S in pkg/generic_advdiff.
330    o pkg/seaice:
331      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
332        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
333      - fixed bug in the initialization of sea ice salinity variable HSALT
334        in seaice_init_varia.F  (removed dependence on ICE2WATR)
335    o fizhi-cs test exp.:
336       switch reference output convention for these 2 non-standard test-exp,
337        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
338          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
339       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
340    o model/inc:
341      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
342        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
343    o pkg/seaice:
344      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
345    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
346      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
347        and initial HSALT
348    
349    checkpoint62w (2011/04/26)
350    o pkg/mom_fluxform:
351      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
352      - use parameter "sideDragFactor" in no-slip BC side-drag part.
353      - update output of exp. global_ocean.90x40x15
354    o pkg/mom_vecinv:
355      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
356    o update seaice exp.:
357      use more consistent parameter values (remove "backward compatability only":
358       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
359      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
360       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
361    o update test-exp global_ocean.90x40x15:
362      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
363      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
364      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
365      o turn on zStar & viscA4 in standard set-up (dir input/)
366        and update output files: output.txt & output.dwnslp.txt
367    o new AD-test experiment: obcs_ctrl
368      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
369    o pkg/dic:
370      fix two bugs in handling water vapour pressure in carbonate chemistry
371      and air-sea fluxes. Found by Val Bennington and Galen McKinley
372      (add DIC Option = WATERVAP_BUG to recover old results)
373      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
374    o adding allowInteriorFreezing option to check for water below freezing point
375      at depth and bring the negative heat anomaly to the surface level
376    o pkgs _fields_load:
377      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
378      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
379        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
380        rbcs to get interpolation weights and time reccord number.
381      - fix multi-threading in aim_fields_load.F
382      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
383    o external_fields_load:
384      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
385       interpolation weights) to use in a periodic time-series ; do not divide by
386       time-step to convert to integer:
387       - this fixes case where externForcingPeriod is not multiple of time-step
388          (Thanks to Christopher L. Wolfe)
389       - this fixes case where externForcingPeriod is an odd multiple of time-step
390         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
391      store index of time-record which is currently loaded:
392       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
393       - needed for the adjoint but not yet used because of extensive recomputations;
394         (to be fixed soon)
395    
396    checkpoint62v (2011/04/02)
397    o verification/1D_ocean_ice_column added to test Ian Fenty's
398      pkg/seaice_growth.F modifications for improving sea ice code differentiability
399    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
400      (new velocity statistics after changing maskInW & maskInS definition)
401    o pkg/generic_advdiff with OBCS:
402      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
403      equivalent to assumption of no tracer gradient outside the OB region.
404      This will affect the results if using obcs+biharmonic diffusion.
405      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
406    o pkg/obcs:
407      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
408      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
409      in Interior region. No impact on solution but affects Velocity monitor stats.
410    o pkg/ptracers (adjoint)
411      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
412      tape file for each tracer
413    o model/inc/src and pkg/autodiff: add parameters that allow to turn
414      of parts of the adjoint code at run time. For now, there are only
415      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
416      parameters are set in data.pkg.
417      This is the lazy coward's version of doing this, but still useful for
418      debugging. In order to do it right, everything needs to be moved to
419      pkg/autodiff.
420    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
421      the end; this fixes the adjoint balancing code for open boundaries.
422    o pkg/ctrl:
423      - change behavior of xx_${varname}period to be analogous to exf-conventions:
424        xx_${varname}period =   0.,  means time-independent control part
425        xx_${varname}period = -12., means one-year-periodic monthly control part
426      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
427        clean up ctrl_init a little, remove unused variables
428      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
429      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
430    
431    checkpoint62u (2011/03/15)
432    o model/src:
433      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
434        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
435      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
436        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
437    o pkg/ctrl/obcs/ecco:
438      - remove obsolete, unused, and partially broken code:
439        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
440        ALLOW_CTRL_OBCS_BALANCE
441      - put a stop statement into ecco/cost_obcsvol.F, but also add
442        cost_obcsvol to ecco_ad_diff.list
443    o pkg/ecco: fix counting cost function contributions for obcs (code
444      by Matt M.) and diffkr for diagnostics
445    o pkg/ecco, pkg/ctrl, pkg/grdchk:
446      add cost penalty terms for initial uvel, vvel, eta controls
447      and I/O for prior error files
448    o pkg/mdsio:
449       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
450       (new argument) to check for tiled file in mdsioLocalDir : this fix the
451       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
452    o pkg/ctrl:
453     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
454       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
455       unused and superfluous variables
456     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
457    o pkg/ecco
458     - enable adjoint of Stevens OB
459    o pkg/ctrl/ecco/grdchk:
460      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
461        Fortunately, we do not have any tests for the numerous cpp-flagged
462        option of "obcs as control parameters" so we will never know
463        if this is an improvement (but at least now things compile).
464      - remove an obsolete initialization from ecco_cost_init_barfiles.F
465      - fix some problems within never used ifdefs to make the code compile
466    o pkg/obcs:
467     - Refine Interior mask definition to work with more complex OB (e.g.
468       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
469       read in Interior mask from file. Check if Interior mask is consistent
470       with OB list of indices.
471    o pkg/seaice
472     - beginning code for a seaice tracer package,
473       but currently only used for seaice age: SEAICE_AGE
474       SEAICE_num = 4
475       iTracer = 1: area-weighted ice age
476               = 2: volume-weighted ice age
477               = 3, 4: template for one-year vs. multi-year ice
478       data.seaice has new namelist SEAICE_PARM03 for arrays related to
479       SEAICE_num
480    
481    checkpoint62t (2011/03/05)
482    o pkg/obcs:
483     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
484       then normal component. This ensures that the normal component is set
485       correctly even when it conficts with tangential setting from an other OB.
486       Affects results of test-experiment seaice_obcs: update the output.txt
487    o pkg/obcs:
488     - add code to monitor statistics of dynamical fields at OB.
489     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
490       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
491       - change default: balance the Net inflow through all OB (instead of balancing
492         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
493     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
494       to match Nortern OB inflow (OBCS_balanceFacN=0).
495    o pkg/seaice:
496     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
497    o pkg/seaice (seaice_growth v 1.113):
498     - reverting seaice_growth to v 1.111 in order to have code with exact bit
499       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
500       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
501       runtime flag SEAICEareaFormula is kept but is inactive
502    o model/src:
503     - add new param to scale curvilinear grid distance and area when using
504       a different sphere radius from the grid-files.
505     - test/check multi-threads EXCH applied to local variable (cg2d_x)
506    o adjoint:
507     - enable adjoint of Stevens OB
508     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
509       (a bit delicate because of potentially modified adj. common block structure;
510       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
511    
512    checkpoint62s (2011/02/15)
513    o pkg/seaice (seaice_growth v 1.112):
514     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
515       computing the ice cover tendency from effective thickness tendencies. Include
516       Ian Fenty's formula.
517     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
518       SEAICEareaFormula.
519     - simplify notations for the various d_HEFF/d_AREA terms.
520    o pkg/gmredi:
521     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
522       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
523       add a verification test-run (front_relax.bvp) to test GM_useBVP.
524    o pkg/seaice (seaice_growth v 1.111):
525     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
526     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
527       also melt ice.
528    o pkg/seaice:
529     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
530     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
531    o pkg/cheapaml:
532     - from Nico Wienders: New version of this package.
533    o pkg/flt:
534     - add CPP options to prevent floats to re-enter the opposite side of
535       a periodic domain (default: keep periodicity)
536    o pkg/gmredi:
537     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
538       (needed for multi-dim advection).
539     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
540    o model/src:
541     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
542    o tutorial_tracer_adjsens
543     - extend to NLFS and replace maskC by hFacC
544       (change reference output accordingly)
545    
546    checkpoint62r (2011/01/24)
547    o testreport:
548     - add option -deloutp (-do) to remove output file after successful run
549     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
550       extract exact list of procs from this file ; adjust COMMAND by
551       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
552    o pkg/ecco: replace old ineffective way of penalizing deviations from
553      first guess (of obcs) with code by Matt Mazloff
554    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
555      exf/cal
556      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
557        and handle case of obcs?period == 0
558        Not affected by these changes: There is still an inconsistency in
559        the computation of start/endrec for the obcs variables for ALLOW_CAL
560        defined (see comment by Menemenlis, 7-Mar-2003)
561      - make S/R ctrl_get_gen_rec return something meaningful even if
562        ALLOW_CAL is not defined
563      - ctrl_getobcs?: simplify code so that it does not need to use
564                       S/R exf_swapfields
565    o testreport:
566       allow to test MPI with different number of processors for each experiment:
567       create file "SIZE.h.mpi" in each build dir.
568       Note: update of "-command" argument not yet implemented.
569    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
570      alleviate the need for additional 3D tapes when using
571      the non-inear free surface in the adjoint. This is done
572      by adding an 'update' of hfacc etc. to their current
573      value at the beginning of forward_step.F.
574    o pkg/seaice
575      seaice_lsr: move stress-divergence computations out of outer pseudo-
576      timestepping loop
577    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
578      up, so that the calls of the ctrl_* subroutines are really at the end
579      of the routine.
580    o pkg/gmredi:
581      allow to specify a 2-D horizontal map and a 1-D vertical profil
582      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
583    o pkg/seaice:
584      move lsr iterations from seaice_dynsolver to seaice_lsr.
585    o pkg/seaice:
586      reduce memory footprint of seaice mutldim advection tapes,
587      by using a 2D tape independent of the generic_advdiff ones,
588      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
589    
590    checkpoint62q (2010/12/29)
591    o model/src:
592      - check horizontal grid-spacing for unset or zero/negative values.
593      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
594    o pkg/flt:
595      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
596      - precision of input and output files set according to readBinaryPrec
597        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
598      - initial float position from tiled file was not converted to index space
599        (looks like a bug): fixed to make it similar to initial pos. global file.
600    o global_ocean.cs32x15:
601       change SIZE.h of AD set-up to get same tiling as with MPI.
602       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
603    o model/src:
604       add flag to control printing of domain fields (bathymetry, hFac ...) in
605       ini_mask_etc (call to plot_fieds_xy*).
606    o pkg/thsice:
607       if useEXF, some forcing fields are not valid in overlap: fixed by computing
608       over the interior only + apply EXCH at the end (like with SEAICE advection).
609    o pkg/mdsio:
610      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
611        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
612      - change barrier call for safe multi-threads access to 3-D shared buffer.
613      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
614      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
615        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
616    o pkg/flt:
617      - add fourth-order Runge-Kutta integration
618      - add basic exch2 support (only 1 facet supported so far!)
619    o pkg/mdsio+rw:
620      new S/R to read local (or tile independent) vector (read counterpart of
621       mds_writevec_loc, and front-end write_glvec_rl/rs).
622    o global_ocean.cs32x15: additional input_ad.seaice experiment
623        that uses pkg/seaice rather than pkg/thsice.
624        (using multidim advection for seaice)
625    o towards more F95 syntax for array specification in namelist:
626      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
627        of all verification experiments.
628           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
629          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
630      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
631    o global_ocean.cs32x15: additional input.seaice experiment
632        that uses pkg/seaice rather than pkg/thsice.
633    
634    checkpoint62p (2010/12/17)
635    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
636        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
637    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
638        allow for use of multim. advection in seaice adjoint.
639    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
640      - first attempt to close budgets by taking into account the freshwater
641        flux implied by the sublimation of snow and ice. So far only the
642        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
643        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
644    o eesupp/src:
645      new S/R with new option (NML_EXTENDED_F77) to change array specification
646      from F95 standard to commonly accepted extended F77 form.
647      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
648      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
649      for less tolerant f77 compiler (e.g., pgf77, g77).
650    o globalFiles:
651      commented out in parameter file "data" since it's not safe with MPI
652      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
653      in this case); no longer commented out in restart test (tst_2+2).
654    o add adTapeDir to specify a special directory where adjoint tapes are
655      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
656      and cannot be used together with mdsioLocalDir.
657    o nesting pkgs:
658      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
659      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
660      - add parameter files + utils dir + output from short run on beagle.
661    o pkg/seaice:
662        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
663    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
664      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
665    
666    checkpoint62o (2010/11/25)
667    o pkg/exf:
668      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
669    o pkg/seaice:
670      - seaice_ocean_stress: split a loop for better vectorization of the
671        adjoint code
672      - seaice_growth.F: fix bug in conservation of freshwater connected to
673        capping of heff, put contribution into d_HEFFbyNEG
674      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
675        by something more sensible (parameters that are what their name implies)
676      - change some defaults, so that by default exf-parameters are used for
677        things like rhoAir, cpAir,latent/sensible heat parameters, in order
678        to reproduce the old results, many data.seaice now contain funny values
679        for cpAir and latent heat of sublimation
680    o packages_readparms.F: move exf_readparms up in line so that
681        exf-parameters are visible for other packages (e.g. seaice)
682    o debugMode & debugLevel=2:
683      - differentiate between debugMode & debugLevel=2:
684        debugMode: controls printing of debug messages (sequence of S/R calls).
685        debugLevel: controls printing of algorithm intermediate results and stats.
686      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
687        => allows to print debug-stats without all sequence of call messages.
688      - switch control of debug print from debugLevel to debugMode in many S/R.
689    o pkg/obcs (obcs-sponge):
690        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
691        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
692    o pkg/generic_advdiff:
693      - record overlap minimum size for each advection scheme;
694      - refine criteria on overlap minimum size;
695      - check and stop (in gad_check) if overlap size is too small.
696    o pkg/obcs:
697      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
698        once, in ptracers_implicit.F)
699      - with seaice: remove test on empty file name in obcs_apply_seaice (always
700        apply OB values when tile has OB)
701    o model/src, coriolis setting:
702      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
703        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
704        files (selectCoriMap=3) with any grid.
705      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
706    o pkg/seaice/seaice_growth.F:
707        a few cosmetic changes that reduce the number of lines of code
708    o pkg/obcs: add boundary conditions following Stevens (1990)
709      - the code follows old MOM/NAOSIM code
710      - so far it is only implemented for the eastern and western boundaries
711        and NOT for pTracers
712    o pkg/rbcs:
713      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
714        beginning of the first rbcs forcing period.
715      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
716        offline package, i.e., one file per time, labeled by iteration number;
717        deltaTrbcs sets the timestep with which the data was generated;
718        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
719      - rbcsForcingCycle=0 makes forcing non-cyclic.
720      - make arithmetic safe for negative times and odd forcing periods.
721    
722    checkpoint62n (2010/11/09)
723    o pkg/seaice:
724        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
725    o pkg/obcs:
726       New S/R to copy tracer value from the OB location to narrow band region
727        (width = same as overlap) beyond the OB: preserve OB value (needed for
728        high-order scheme) which were overwritten by EXCH call if in overlap
729        region. Applied to theta, salt, ptracer and advected seaice variables.
730       With seaice: use maskInC in similar way as in gad_advection.F,
731        in seaice_advection.F and advect.F.
732       Update output of experiment seaice_obcs and change exp4 to test OBCS with
733        4th order Adv.Scheme. for pasive salt and ptracer.
734    o tools/genmake2:
735      - when looking for an optfile (not specified), only search for Fortran compiler
736        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
737      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
738        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
739      - set default for CPP to "cpp -traditional -P" (was the case without specifying
740        an optfile, but otherwise default was just "cpp".
741      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
742      - when "CC" is not set in the optfile, look for possible C compiler
743        (instead of just setting CC=cc)
744      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
745        => add a ".F" to ".o" rule for source files with no "#include" (such as
746           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
747      - move gfortran before g77 in list of possible Fortran compiler (consistent
748        with reference compiler switch from g77 to gfortran)
749    o pkg/seaice:
750      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
751        seaice_check that stops the model, when the CPP flag is used.
752      o seaice_growth.F: make capping of ice volume conserving by returning the
753        capped ice as freshwater to EmPmR. This does not change the verification
754        experiments but will change runs where the capping is acutally active
755    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
756      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
757         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
758         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
759    o tools/genmake2:
760      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
761      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
762      - clean previous genmake log files before anything else.
763      - change Makefile to remove testreport log files (*.tr_log) and genmake log
764        files only with "CLEAN" target (instead of "Clean");
765    o pkg/generic_advdiff:
766      Change OBCS in multiDim advection (gad_advection.F):
767       Use maskInC to prevent intermediate update of tracer-field in OB regions,
768       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
769       which were applying future time-step OB values.
770      This way, all explicit calculations use current-time-step OB values
771       (simpler and more consistent).
772      Affects results when set-up uses time-varying OBC and multi-dim advection;
773       update output of experiment seaice_obcs.
774    o pkg/seaice:
775      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
776       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
777         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
778      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
779       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
780       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
781    o pkg aim (2010/10/26):
782      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
783        formulation with obliquity, eccentricity, ... as run-time parameters,
784      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
785        upward shortwave radition at the surface (all-sky and clear-sky).
786    o pkg/obcs:
787      - writing sections with globalFiles=T does not work: switch to tiled-files
788        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
789      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
790      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
791    
792    checkpoint62m (2010/10/21)
793    o pkg/seaice: vectorize seaice_solve4temp.F
794      - move iterations loops outside of i/j-loops
795      - requires 2D arrays for TB and effConduct
796      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
797        modified in this routine
798      - a little bit of clean up, adjusting indentation, etc.
799      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
800        performance and '**TWO' by '**2' (because TWO is a float),
801        replaced ONE, ZERO
802    o eesupp/src:
803       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
804    o pkg/seaice/seaice_growth.F
805      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
806      merging process. The merged routine has two branches, and one activates the 'evolution'
807      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
808      In summary, here is what the '10/10 revision' did consist of
809        part 1: seaice_growth.F revisions 1.71 to 1.75
810          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
811            The emphasis here was on improving readability (e.g. by trying to use meaningful
812            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
813        part 1.5:
814          - revising the lab_sea experiment to make it a more useful (i.e. stable
815            and representative of an actual model run). This was done by generating a
816            (winter) pickup to start from, switching back the main experiment dynamic
817            solver from evp to lsr, having one of the experiments use the free drift solution.
818        part 2: seaice_growth.F revisions 1.76 to 1.85
819          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
820          - Sorting out the various fields units and sign (set early on and reset at the end)
821            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
822            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
823          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
824            and simplifying logical expressions to further improve readibility.
825        part 3: seaice_growth.F revisions 1.86 to 1.89
826          - Re-organize the blocks of code more logically.
827          - Merging the '_if.F' pieces that add something new.
828    o pkg/thsice:
829      - vectorize thsice_solve4temp and thsice_get_exf.
830        Problem: thsice_solve4temp has an unvectorizable statement that
831        might also be problematic for TAF
832      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
833        does not change the verifcation experiment, but will change all
834        experiments that have this flag undefined (not tested in verification);
835        a little reorganization to save a few 2D fields and recomputations
836      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
837      - 2nd step:  fix some store dirs
838        o seems to work somewhat, i.e. using ifort but not g77
839        o likely cause are incomplete init. or recomputation
840        o start verification/global_ocean.cs32x15/input_ad.thsice
841    o pkg/obcs: add support for exch2
842      - the position of the boundary and prescribed values are specified using
843        a global domain with exch2 facets stacked
844        - in x for N,S boundaries (like W2_mapIO=-1)
845        - in y for E,W boundaries (so E,W boundaries do not overlap)
846    o pkg/mdsio: add support for writing global sections with exch2
847        file layout is as for obcs described above:
848        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
849        - for y-z sections, facets are stacked in y
850    o pkg/thsice:
851       - change a few routines for better vectorization: thsice_albedo.F,
852         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
853         not affected, but in particular the latter routine has changed
854         dramatically (not necessarily easier to read now).
855       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
856       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
857    o verification/lab_sea:
858      - overhaul of the forward model experiments. The main motivation
859        for this revision is that lab_sea has proven quite fragile (when
860        changing the sea-ice code, and switching platforms) to a point
861        when failures were very hard to attribute to specific code problems.
862      - the suspected reason for this fragility is noise amplification by evp so,
863        to start with, we decided to replace evp with lsr in the main experiment.
864      - the input.lsr experiment thus became obsolete and was removed.
865      - it was replaced with the input.fd experiment that uses an
866        analytical "free drift" solution as the ice velocity field.
867      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
868        will hopefully allow us to discriminate problems due to dynamic solvers
869        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
870        us to test additional options, along with the salt plume package.
871      - Finally a pickup was generated (at the end of a one year run) to
872        make the tests more representative of an actual model run. Previously
873        the tests starting point was a 1m thickness of ice everywhere.
874    o pkg/seaice:
875      - introducing S\R seaice_freedrift.F that compute the
876        analytical solution to an approximate ice momentum
877        equation (i.e. the simple stress/coriolis balance).
878      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
879        of the free drift velocity field, and enable its use.
880        To actually use the free drift solution as the model ice
881        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
882    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
883    
884    checkpoint62l (2010/10/04)
885    o pkg/seaice:
886      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
887      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
888       version (with USE_ORIGINAL_SBI undef);
889    o add hooks for new packages OASIS, the package will follow
890      (hooks exclude the seaice pkg for now)
891    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
892      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
893      rather than mdsio_readvector.F/mdsio_writevector.F, within
894      adread_adwrite.F to read/write adjoint-related tapes to disk.
895    o eesupp and pkg/mdsio: ALLOW_WHIO
896      Option to write/read 2D fields to files including tiles halos.
897      The main purpose is for adjoint related "tape I/O".
898      The secondary purpose is for debugging phases.
899      A word on those rather specifically intended purposes.
900      The code was meant to be stripped down to the bare minimum.
901      Typically, there is a unique and basic mapping to the global
902      buffer (tile by tile, then proc by proc, then level by level), and
903      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
904      meant to generate user friendly outputs of various shapes and forms.
905      Rather it is intended, for the knowledgeabale developers,
906      to be largely independent of the many mdsio options, to allow
907      outputs of tiles+halos in debugging phases and in adjoint runs,
908      and to allow some flexibility in tuning (adoint) I/O depending on each
909      file system behavior. With regard to tuning, most of the potential knobs
910      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
911      to specify directories, to specify the typical size of I/O calls, etc.)
912      are not yet included, and will be added if they prove useful.
913    o pkg/seaice:
914       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
915    o pkg/seaice:
916       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
917       code (seaice_budget_ice_if.F) which enable to recover old standard
918       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
919       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
920    o model/src (rStar):
921       use simple average (not area weighted) of rStarFac at U,V point when using
922       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
923       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
924    
925    checkpoint62k (2010/09/17)
926    o adjoint
927       * changed verification/global_ocean.cs32x15 ; adjoint now tests
928         Adams-Bashforth 3 + NLFS + RSTAR
929       * some more modifs required for ECCO-GODAE v4
930    o pkg/seaice
931       add SEAICE_AGE_VOL option to use volume instead of area for
932       integrating SEAICE_AGE
933  o model/src:  o model/src:
934     first check-in of sigma & hybrid-sigma coordinate code ; also includes     first check-in of sigma & hybrid-sigma coordinate code ; also includes
935     non-linear free-surface parts ; but pressure-gradient not yet coded.     non-linear free-surface parts ; but pressure-gradient not yet coded.
# Line 273  o tools/build_options: Line 1199  o tools/build_options:
1199      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
1200  o pkg/ecco  o pkg/ecco
1201    - allow user defined cost function contributions    - allow user defined cost function contributions
1202          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
1203          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
1204    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
1205        the two options are complementary.        the two options are complementary.
1206  o pkg/smooth  o pkg/smooth
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