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revision 1.1369 by jmc, Mon Jan 24 14:35:07 2011 UTC revision 1.1468 by heimbach, Wed Jun 29 16:28:46 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/shelfice
8     - Implement friction velocity-dependent transfer coefficients following
9       Holland and Jenkins, JPO, 1999
10       Original code by M. Losch with small modifs.
11       Enable with CPP option SHI_ALLOW_GAMMAFRICT
12       and runtime flag SHELFICEuseGammaFrict
13    o verification lab_sea & global_ocean.cs32x15:
14     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
15       does not miss some dependencies (but is slower) and also works with many files
16       (default makedepend limitation for AD built).
17     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
18    o pkg/diagnostics:
19     - add run-time parameter "useMissingValue" (def=False) to fill land-point
20        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
21       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
22     - Extend the use of "missing_value" setting from data.diagnostics for the case
23       of counter-diagnostics (where fraction-weight is zero). This applies both to
24       MNC and MDS output files.
25    o pkg/seaice/seaice_growth.F:
26      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
27       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
28      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
29       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
30      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
31      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
32    o verification 1D_ocean_ice_column:
33       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
34       update results
35    o pkg/diagnostics:
36     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
37       which are not filled-up but computed from other diags ; In this case, the mate
38       diag points to the primary (filled-up) diag to used for post processing.
39     - Update Velocity-potential computation using post-processed diag framework.
40     ==> Change the ordering of fields and time-periods in MDS output file
41       when using periodic averaging: now writes one time record with the full set
42       of fields for this time period, then the next time reccord (it used to be
43       one field with the full set of time records then the next field).
44         Note: this is now similar to NetCDF (MNC) output file. <==
45    
46    checkpoint62z (2011/06/21)
47    o adjoint monitor:
48     - Add adjoint monitor output for packages exf, seaice
49       and update relevant testreport output
50    o pkg/seaice:
51     - re-order diags inits so that they appear in order in available_diagnostics.log
52     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
53       area/heff/hsnow preceeding thermodynamic growth/melt.
54     - modified diag: SIdA; output actual effect, as the description states.
55     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
56     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
57       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
58        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
59     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
60     - added diagnostics for seaice generic tracers (SItr*).
61     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
62     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
63     I. Fenty: 18-Jun-2011:
64     Minor changes to seaice package:
65     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
66        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
67       - Differentiated "regularization variables" from "floor variables"
68        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
69        * hiceMin became SEAICE_hice_reg (old hiceMin)
70          (with _reg meaning regularization variable)
71       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
72        so as to ensure energy conservation when going between phases
73      - A22 was not used anywhere
74     2) Changed regularization procedure for heffActual and hsnowActual to ensure
75        well-boundedness and smooth adjoint in seaice_growth.F
76     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
77        because the old regularization always set heffActual >= 0.05 cm
78     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
79        on AREA when HEFF > 0.
80      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
81        requiring that DISABLE_AREA_FLOOR *not* be defined
82     Affected verifications:
83      - 1D_ocean_ice_column (output.txt output_adm.txt)
84      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
85    o pkg/diagnostics:
86      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
87      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
88        (was _RL, now integer) with option = 0 to retrieve all levels.
89      - add pieces of code to compute velocity potential at each level (new diagnostics
90        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
91        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
92      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
93        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
94        and in diagnostics_fract_fill.F (do not need a valid pointer for the
95        diagnostics counter-mate); check that definition of counter-diagnostic
96        includes a valid counter-mate (in diagnostics_set_levels.F).
97    o model/src (rStar):
98      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
99        affect solution only if z* with full pressure in EOS;
100        update output of test-exp global_ocean.90x40x15.
101    o pkg/seaice:
102      - introduce siEps=1e-5 parameter
103      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
104      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
105      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
106        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
107        as well as ice cover age and ridging index (attached to AREA).
108        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
109        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
110        Up to SItrMaxNum=3 tracers can be used simultaneously.
111    o pkg/salt_plume:
112      -introduce SPsalFRAC run time parameter that sets the fraction of the
113       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
114       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
115    o model debug options:
116      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
117        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
118      - Refine debug-msg printing selection (3 new levels):
119        debugMode  : controls printing of debug messages (sequence of S/R calls).
120        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
121         debLevZero =  0 ; /* level of disabled aux. msg printing */
122         debLevA =  1 ; /* level of minimum  aux. msg printing */
123         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
124         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
125         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
126         debLevE =  5 ; /* level of extensive debug printing */
127        New debugLevel default: with default debugMode value (=F),
128          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
129          and if debugMode=T, default debugLevel = 4 (debLevD).
130        Relation with previous settings:
131         debLevB (=2) corresponds to former debLevA (=1)
132         debLevD (=4) corresponds to former debLevB (=2)
133        Note:
134         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
135         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
136            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
137      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
138        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
139    o pkg/obcs:
140      - change OBCSfixTopo default from True to False (should not change the results);
141        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
142    o pkg/thsice:
143      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
144        2nd layer seaice sublimation (unlikely to happen)
145      - use Interior mask for OBCS in thsice_advection.F (similar to what is
146        done in gad_advection & seaice_advection).
147    o adjoint:
148      bug fix spotted by Gael Forget:
149      seaice_advection and thsice_advection still had
150      legacy CPP options to avoid CS corner updates for adjoint
151    o pkg/seaice:
152      => Change some of the defaults (2011/05/29):
153         - change SEAICEuseFluxForm default (from False to True)
154         - change DIFF1 default (from 0.004 m/s to 0. m/s)
155         And print warnings if DIFF1 is not set in data.seaice and centered
156          avection scheme is used without any diffusion.
157      also:
158      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
159      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
160      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
161        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
162        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
163      update results of test exp.:
164         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
165             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
166             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
167         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
168         seaice_obcs: output (SEAICEuseFluxForm=T)
169      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
170          for standard fwd & AD lab_sea tests (to keep the same output).
171    o pkg/seaice/seaice_growth.F:
172      - use Ian Fenty's capping formulas for actual ice
173      thickness thoughout EVOLUTION branch.
174      - put treatment pathological case #2) in CPP brackets
175      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
176      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
177    o pkg/seaice:
178      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
179      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
180      also pass fac as a param, which can be 1. (to update the tendency
181      field) or the time step (to update the field itself).
182      - seaice_advdiff.F: for multidim, call seaice_diffusion with
183      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
184      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
185      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
186      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
187    o pkg/seaice:
188      diffusion with centered advection scheme (diffus.F & advect.F):
189      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
190        to just compute the laplacian of input-field.
191      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
192      - fix flux-form version in diffus.F to conserve tracer.
193      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
194       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
195    
196    checkpoint62y (2011/05/26)
197    o pkg/seaice:
198     - seaice_growth.F : in EVOLUTION branch, always include
199       a_QSWbyATM_cover in qnet (as it should be).
200     - verification/global_ocean.cs32x15 : update results accordingly
201       (output.seaice.txt output_adm.seaice.txt).
202    o pkg/seaice + obcs:
203     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
204       equivalent of assuming no tracer gradient outside the OB region.
205       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
206     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
207       after changes above);
208     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
209       only at OB location (instead of over a band of OLx width).
210    o pkg/seaice:
211     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
212       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
213    o pkg/obcs:
214      - split header file "OBCS.h" into 4 separated files:
215        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
216       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
217         (contain no conditional statement which depends on OBCS options).
218      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
219        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
220    o ctrl, cost, grdchk & autodiff pkgs:
221      - make options file more standard (like other {PKG}_OPTIONS.h file but
222        with AD_CONFIG.h); clean-up some of the included header files.
223    o pkg/obcs:
224      - do not mask tracer when applying OB (tracer == 0 could generate problems)
225      - apply tracer OB values to tracer field only at OB location (instead of
226        over a band of OLx width)
227      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
228      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
229        obcs_apply_tloc.F & obcs_apply_sloc.F
230    o obcs in model/src:
231      - call OBCS_APPLY_W only if NonHydrostatic.
232      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
233      - reset dEtaHdt and wVel to zero outside OB interior region ;
234      - leave tracer unchanged outside OB interior region: This has no effect
235        on the solution but just to prevent unrealistic tracer value outside OB.
236      - zero out velocity outside OB interior region: This has no effect on
237        the solution but just to prevent unrealistic velocity outside OB.
238    o obcs and non-lin free-surf:
239       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
240       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
241       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
242       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
243       update results of test-exp. exp4(nlfs).
244    o exp4 (nlfs) test-exp:
245       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
246       with NonLin-FreeSurf); update output.nlfs.txt
247    o obcs and 2d/3d solver norm:
248       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
249       and outside OB interior region (will allow to place OB further inside the
250       domain). Depending on the domain, can affects cg2d-Norm (previous
251       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
252       and cg3d-Norm (previous Norm was computed before canceling OB terms),
253       e.g. in tutorial_plume_on_slope.
254      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
255    o pkg rbcs:
256      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
257      - add capability to apply relaxation to horizontal velocity uVel & vVel.
258    o pkg/grdchk: add gradient check for control variable xx_shifwflx
259    o pkg/shelfice/shelfice_init_fixed.F
260      fix CPP-flag combinations
261    o pkg/seaice: Merge iceage code of Pierre Rampal
262      * update/change/correct ice age calculations
263      * add age updates for pathological cases
264      Probably needs more testing...
265    
266    checkpoint62x (2011/05/13)
267    o pkg/mom_vecinv:
268       high-order vorticity scheme: use interior masks (maskInW & S)
269       to zero-out (outside OB) gradient of vorticity.
270    o verification exp.:
271       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
272       hs94.128x64x5 and seaice_obcs ; update results.
273    o pkg/obcs:
274      fix bug in OBeta for YZ sections in obcs_exf_load.F
275    o pkg/ctrl, pkg/shelfice, and optim:
276      - add new control variable xx_shifwflx (fresh water flux underneath ice
277        shelves). This is almost as tedious as obcs-ctrl, because the
278        variables needs its own mask.
279      - add a cost function term that penalizes the deviation of xx_shifwflx
280        from the first guess (zero) in analogy to other control variables
281    o pkg/shelfice:
282      - start basic adjoint
283    o pkg/ctrl:
284      - remove extra 2D field "for good measure" when initializing in
285        ctrl_set_globfld_[xy/xz/yz].F
286      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
287      - improve error messages in ctrl_set_unpack_*
288    o OBC implementation in momentum:
289       use interior masks (maskInC,W & S) in momentum S/R:
290       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
291       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
292       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
293       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
294       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
295        (and also with Leith/Smagorinsky harmonic-viscosity).
296       Update output of experiment dome and exp4 (+nlfs).
297    o exp4 test-exp:
298      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
299        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
300        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
301        time-varying OB at Western-side for wVel (NonHyd); update output.
302      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
303        and biharmonic-viscosity ; also use prescribed time varying OB.
304    o pkg/obcs:
305      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
306    o model/src:
307      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
308      - initialise startTime & nIter0 with unlikely values: allows to set one
309        from the other without ambiguity.
310    o seaice_obcs test-exp.:
311      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
312    o pkg/obcs:
313      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
314        no longer needed with maskInC,W,S in pkg/generic_advdiff.
315    o pkg/seaice:
316      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
317        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
318      - fixed bug in the initialization of sea ice salinity variable HSALT
319        in seaice_init_varia.F  (removed dependence on ICE2WATR)
320    o fizhi-cs test exp.:
321       switch reference output convention for these 2 non-standard test-exp,
322        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
323          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
324       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
325    o model/inc:
326      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
327        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
328    o pkg/seaice:
329      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
330    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
331      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
332        and initial HSALT
333    
334    checkpoint62w (2011/04/26)
335    o pkg/mom_fluxform:
336      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
337      - use parameter "sideDragFactor" in no-slip BC side-drag part.
338      - update output of exp. global_ocean.90x40x15
339    o pkg/mom_vecinv:
340      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
341    o update seaice exp.:
342      use more consistent parameter values (remove "backward compatability only":
343       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
344      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
345       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
346    o update test-exp global_ocean.90x40x15:
347      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
348      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
349      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
350      o turn on zStar & viscA4 in standard set-up (dir input/)
351        and update output files: output.txt & output.dwnslp.txt
352    o new AD-test experiment: obcs_ctrl
353      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
354    o pkg/dic:
355      fix two bugs in handling water vapour pressure in carbonate chemistry
356      and air-sea fluxes. Found by Val Bennington and Galen McKinley
357      (add DIC Option = WATERVAP_BUG to recover old results)
358      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
359    o adding allowInteriorFreezing option to check for water below freezing point
360      at depth and bring the negative heat anomaly to the surface level
361    o pkgs _fields_load:
362      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
363      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
364        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
365        rbcs to get interpolation weights and time reccord number.
366      - fix multi-threading in aim_fields_load.F
367      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
368    o external_fields_load:
369      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
370       interpolation weights) to use in a periodic time-series ; do not divide by
371       time-step to convert to integer:
372       - this fixes case where externForcingPeriod is not multiple of time-step
373          (Thanks to Christopher L. Wolfe)
374       - this fixes case where externForcingPeriod is an odd multiple of time-step
375         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
376      store index of time-record which is currently loaded:
377       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
378       - needed for the adjoint but not yet used because of extensive recomputations;
379         (to be fixed soon)
380    
381    checkpoint62v (2011/04/02)
382    o verification/1D_ocean_ice_column added to test Ian Fenty's
383      pkg/seaice_growth.F modifications for improving sea ice code differentiability
384    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
385      (new velocity statistics after changing maskInW & maskInS definition)
386    o pkg/generic_advdiff with OBCS:
387      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
388      equivalent to assumption of no tracer gradient outside the OB region.
389      This will affect the results if using obcs+biharmonic diffusion.
390      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
391    o pkg/obcs:
392      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
393      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
394      in Interior region. No impact on solution but affects Velocity monitor stats.
395    o pkg/ptracers (adjoint)
396      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
397      tape file for each tracer
398    o model/inc/src and pkg/autodiff: add parameters that allow to turn
399      of parts of the adjoint code at run time. For now, there are only
400      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
401      parameters are set in data.pkg.
402      This is the lazy coward's version of doing this, but still useful for
403      debugging. In order to do it right, everything needs to be moved to
404      pkg/autodiff.
405    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
406      the end; this fixes the adjoint balancing code for open boundaries.
407    o pkg/ctrl:
408      - change behavior of xx_${varname}period to be analogous to exf-conventions:
409        xx_${varname}period =   0.,  means time-independent control part
410        xx_${varname}period = -12., means one-year-periodic monthly control part
411      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
412        clean up ctrl_init a little, remove unused variables
413      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
414      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
415    
416    checkpoint62u (2011/03/15)
417    o model/src:
418      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
419        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
420      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
421        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
422    o pkg/ctrl/obcs/ecco:
423      - remove obsolete, unused, and partially broken code:
424        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
425        ALLOW_CTRL_OBCS_BALANCE
426      - put a stop statement into ecco/cost_obcsvol.F, but also add
427        cost_obcsvol to ecco_ad_diff.list
428    o pkg/ecco: fix counting cost function contributions for obcs (code
429      by Matt M.) and diffkr for diagnostics
430    o pkg/ecco, pkg/ctrl, pkg/grdchk:
431      add cost penalty terms for initial uvel, vvel, eta controls
432      and I/O for prior error files
433    o pkg/mdsio:
434       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
435       (new argument) to check for tiled file in mdsioLocalDir : this fix the
436       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
437    o pkg/ctrl:
438     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
439       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
440       unused and superfluous variables
441     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
442    o pkg/ecco
443     - enable adjoint of Stevens OB
444    o pkg/ctrl/ecco/grdchk:
445      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
446        Fortunately, we do not have any tests for the numerous cpp-flagged
447        option of "obcs as control parameters" so we will never know
448        if this is an improvement (but at least now things compile).
449      - remove an obsolete initialization from ecco_cost_init_barfiles.F
450      - fix some problems within never used ifdefs to make the code compile
451    o pkg/obcs:
452     - Refine Interior mask definition to work with more complex OB (e.g.
453       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
454       read in Interior mask from file. Check if Interior mask is consistent
455       with OB list of indices.
456    o pkg/seaice
457     - beginning code for a seaice tracer package,
458       but currently only used for seaice age: SEAICE_AGE
459       SEAICE_num = 4
460       iTracer = 1: area-weighted ice age
461               = 2: volume-weighted ice age
462               = 3, 4: template for one-year vs. multi-year ice
463       data.seaice has new namelist SEAICE_PARM03 for arrays related to
464       SEAICE_num
465    
466    checkpoint62t (2011/03/05)
467    o pkg/obcs:
468     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
469       then normal component. This ensures that the normal component is set
470       correctly even when it conficts with tangential setting from an other OB.
471       Affects results of test-experiment seaice_obcs: update the output.txt
472    o pkg/obcs:
473     - add code to monitor statistics of dynamical fields at OB.
474     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
475       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
476       - change default: balance the Net inflow through all OB (instead of balancing
477         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
478     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
479       to match Nortern OB inflow (OBCS_balanceFacN=0).
480    o pkg/seaice:
481     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
482    o pkg/seaice (seaice_growth v 1.113):
483     - reverting seaice_growth to v 1.111 in order to have code with exact bit
484       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
485       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
486       runtime flag SEAICEareaFormula is kept but is inactive
487    o model/src:
488     - add new param to scale curvilinear grid distance and area when using
489       a different sphere radius from the grid-files.
490     - test/check multi-threads EXCH applied to local variable (cg2d_x)
491    o adjoint:
492     - enable adjoint of Stevens OB
493     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
494       (a bit delicate because of potentially modified adj. common block structure;
495       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
496    
497    checkpoint62s (2011/02/15)
498    o pkg/seaice (seaice_growth v 1.112):
499     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
500       computing the ice cover tendency from effective thickness tendencies. Include
501       Ian Fenty's formula.
502     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
503       SEAICEareaFormula.
504     - simplify notations for the various d_HEFF/d_AREA terms.
505    o pkg/gmredi:
506     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
507       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
508       add a verification test-run (front_relax.bvp) to test GM_useBVP.
509    o pkg/seaice (seaice_growth v 1.111):
510     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
511     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
512       also melt ice.
513    o pkg/seaice:
514     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
515     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
516    o pkg/cheapaml:
517     - from Nico Wienders: New version of this package.
518    o pkg/flt:
519     - add CPP options to prevent floats to re-enter the opposite side of
520       a periodic domain (default: keep periodicity)
521    o pkg/gmredi:
522     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
523       (needed for multi-dim advection).
524     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
525    o model/src:
526     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
527    o tutorial_tracer_adjsens
528     - extend to NLFS and replace maskC by hFacC
529       (change reference output accordingly)
530    
531  checkpoint62r (2011/01/24)  checkpoint62r (2011/01/24)
532  o testreport:  o testreport:
533   - add option -deloutp (-do) to remove output file after successful run   - add option -deloutp (-do) to remove output file after successful run

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