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revision 1.1335 by jmc, Tue Nov 16 17:53:33 2010 UTC revision 1.1459 by jmc, Tue Jun 21 15:15:10 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 adjoint monitor:
8     - Add adjoint monitor output for packages exf, seaice
9       and update relevant testreport output
10    o pkg/seaice:
11     - re-order diags inits so that they appear in order in available_diagnostics.log
12     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
13       area/heff/hsnow preceeding thermodynamic growth/melt.
14     - modified diag: SIdA; output actual effect, as the description states.
15     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
16     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
17       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
18        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
19     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
20     - added diagnostics for seaice generic tracers (SItr*).
21     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
22     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
23     I. Fenty: 18-Jun-2011:
24     Minor changes to seaice package:
25     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
26        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
27       - Differentiated "regularization variables" from "floor variables"
28        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
29        * hiceMin became SEAICE_hice_reg (old hiceMin)
30          (with _reg meaning regularization variable)
31       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
32        so as to ensure energy conservation when going between phases
33      - A22 was not used anywhere
34     2) Changed regularization procedure for heffActual and hsnowActual to ensure
35        well-boundedness and smooth adjoint in seaice_growth.F
36     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
37        because the old regularization always set heffActual >= 0.05 cm
38     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
39        on AREA when HEFF > 0.
40      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
41        requiring that DISABLE_AREA_FLOOR *not* be defined
42     Affected verifications:
43      - 1D_ocean_ice_column (output.txt output_adm.txt)
44      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
45    o pkg/diagnostics:
46      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
47      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
48        (was _RL, now integer) with option = 0 to retrieve all levels.
49      - add pieces of code to compute velocity potential at each level (new diagnostics
50        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
51        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
52      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
53        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
54        and in diagnostics_fract_fill.F (do not need a valid pointer for the
55        diagnostics counter-mate); check that definition of counter-diagnostic
56        includes a valid counter-mate (in diagnostics_set_levels.F).
57    o model/src (rStar):
58      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
59        affect solution only if z* with full pressure in EOS;
60        update output of test-exp global_ocean.90x40x15.
61    o pkg/seaice:
62      - introduce siEps=1e-5 parameter
63      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
64      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
65      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
66        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
67        as well as ice cover age and ridging index (attached to AREA).
68        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
69        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
70        Up to SItrMaxNum=3 tracers can be used simultaneously.
71    o pkg/salt_plume:
72      -introduce SPsalFRAC run time parameter that sets the fraction of the
73       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
74       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
75    o model debug options:
76      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
77        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
78      - Refine debug-msg printing selection (3 new levels):
79        debugMode  : controls printing of debug messages (sequence of S/R calls).
80        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
81         debLevZero =  0 ; /* level of disabled aux. msg printing */
82         debLevA =  1 ; /* level of minimum  aux. msg printing */
83         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
84         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
85         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
86         debLevE =  5 ; /* level of extensive debug printing */
87        New debugLevel default: with default debugMode value (=F),
88          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
89          and if debugMode=T, default debugLevel = 4 (debLevD).
90        Relation with previous settings:
91         debLevB (=2) corresponds to former debLevA (=1)
92         debLevD (=4) corresponds to former debLevB (=2)
93        Note:
94         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
95         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
96            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
97      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
98        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
99    o pkg/obcs:
100      - change OBCSfixTopo default from True to False (should not change the results);
101        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
102    o pkg/thsice:
103      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
104        2nd layer seaice sublimation (unlikely to happen)
105      - use Interior mask for OBCS in thsice_advection.F (similar to what is
106        done in gad_advection & seaice_advection).
107    o adjoint:
108      bug fix spotted by Gael Forget:
109      seaice_advection and thsice_advection still had
110      legacy CPP options to avoid CS corner updates for adjoint
111    o pkg/seaice:
112      => Change some of the defaults (2011/05/29):
113         - change SEAICEuseFluxForm default (from False to True)
114         - change DIFF1 default (from 0.004 m/s to 0. m/s)
115         And print warnings if DIFF1 is not set in data.seaice and centered
116          avection scheme is used without any diffusion.
117      also:
118      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
119      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
120      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
121        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
122        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
123      update results of test exp.:
124         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
125             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
126             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
127         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
128         seaice_obcs: output (SEAICEuseFluxForm=T)
129      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
130          for standard fwd & AD lab_sea tests (to keep the same output).
131    o pkg/seaice/seaice_growth.F:
132      - use Ian Fenty's capping formulas for actual ice
133      thickness thoughout EVOLUTION branch.
134      - put treatment pathological case #2) in CPP brackets
135      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
136      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
137    o pkg/seaice:
138      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
139      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
140      also pass fac as a param, which can be 1. (to update the tendency
141      field) or the time step (to update the field itself).
142      - seaice_advdiff.F: for multidim, call seaice_diffusion with
143      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
144      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
145      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
146      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
147    o pkg/seaice:
148      diffusion with centered advection scheme (diffus.F & advect.F):
149      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
150        to just compute the laplacian of input-field.
151      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
152      - fix flux-form version in diffus.F to conserve tracer.
153      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
154       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
155    
156    checkpoint62y (2011/05/26)
157    o pkg/seaice:
158     - seaice_growth.F : in EVOLUTION branch, always include
159       a_QSWbyATM_cover in qnet (as it should be).
160     - verification/global_ocean.cs32x15 : update results accordingly
161       (output.seaice.txt output_adm.seaice.txt).
162    o pkg/seaice + obcs:
163     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
164       equivalent of assuming no tracer gradient outside the OB region.
165       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
166     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
167       after changes above);
168     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
169       only at OB location (instead of over a band of OLx width).
170    o pkg/seaice:
171     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
172       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
173    o pkg/obcs:
174      - split header file "OBCS.h" into 4 separated files:
175        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
176       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
177         (contain no conditional statement which depends on OBCS options).
178      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
179        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
180    o ctrl, cost, grdchk & autodiff pkgs:
181      - make options file more standard (like other {PKG}_OPTIONS.h file but
182        with AD_CONFIG.h); clean-up some of the included header files.
183    o pkg/obcs:
184      - do not mask tracer when applying OB (tracer == 0 could generate problems)
185      - apply tracer OB values to tracer field only at OB location (instead of
186        over a band of OLx width)
187      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
188      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
189        obcs_apply_tloc.F & obcs_apply_sloc.F
190    o obcs in model/src:
191      - call OBCS_APPLY_W only if NonHydrostatic.
192      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
193      - reset dEtaHdt and wVel to zero outside OB interior region ;
194      - leave tracer unchanged outside OB interior region: This has no effect
195        on the solution but just to prevent unrealistic tracer value outside OB.
196      - zero out velocity outside OB interior region: This has no effect on
197        the solution but just to prevent unrealistic velocity outside OB.
198    o obcs and non-lin free-surf:
199       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
200       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
201       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
202       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
203       update results of test-exp. exp4(nlfs).
204    o exp4 (nlfs) test-exp:
205       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
206       with NonLin-FreeSurf); update output.nlfs.txt
207    o obcs and 2d/3d solver norm:
208       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
209       and outside OB interior region (will allow to place OB further inside the
210       domain). Depending on the domain, can affects cg2d-Norm (previous
211       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
212       and cg3d-Norm (previous Norm was computed before canceling OB terms),
213       e.g. in tutorial_plume_on_slope.
214      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
215    o pkg rbcs:
216      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
217      - add capability to apply relaxation to horizontal velocity uVel & vVel.
218    o pkg/grdchk: add gradient check for control variable xx_shifwflx
219    o pkg/shelfice/shelfice_init_fixed.F
220      fix CPP-flag combinations
221    o pkg/seaice: Merge iceage code of Pierre Rampal
222      * update/change/correct ice age calculations
223      * add age updates for pathological cases
224      Probably needs more testing...
225    
226    checkpoint62x (2011/05/13)
227    o pkg/mom_vecinv:
228       high-order vorticity scheme: use interior masks (maskInW & S)
229       to zero-out (outside OB) gradient of vorticity.
230    o verification exp.:
231       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
232       hs94.128x64x5 and seaice_obcs ; update results.
233    o pkg/obcs:
234      fix bug in OBeta for YZ sections in obcs_exf_load.F
235    o pkg/ctrl, pkg/shelfice, and optim:
236      - add new control variable xx_shifwflx (fresh water flux underneath ice
237        shelves). This is almost as tedious as obcs-ctrl, because the
238        variables needs its own mask.
239      - add a cost function term that penalizes the deviation of xx_shifwflx
240        from the first guess (zero) in analogy to other control variables
241    o pkg/shelfice:
242      - start basic adjoint
243    o pkg/ctrl:
244      - remove extra 2D field "for good measure" when initializing in
245        ctrl_set_globfld_[xy/xz/yz].F
246      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
247      - improve error messages in ctrl_set_unpack_*
248    o OBC implementation in momentum:
249       use interior masks (maskInC,W & S) in momentum S/R:
250       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
251       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
252       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
253       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
254       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
255        (and also with Leith/Smagorinsky harmonic-viscosity).
256       Update output of experiment dome and exp4 (+nlfs).
257    o exp4 test-exp:
258      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
259        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
260        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
261        time-varying OB at Western-side for wVel (NonHyd); update output.
262      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
263        and biharmonic-viscosity ; also use prescribed time varying OB.
264    o pkg/obcs:
265      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
266    o model/src:
267      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
268      - initialise startTime & nIter0 with unlikely values: allows to set one
269        from the other without ambiguity.
270    o seaice_obcs test-exp.:
271      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
272    o pkg/obcs:
273      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
274        no longer needed with maskInC,W,S in pkg/generic_advdiff.
275    o pkg/seaice:
276      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
277        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
278      - fixed bug in the initialization of sea ice salinity variable HSALT
279        in seaice_init_varia.F  (removed dependence on ICE2WATR)
280    o fizhi-cs test exp.:
281       switch reference output convention for these 2 non-standard test-exp,
282        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
283          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
284       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
285    o model/inc:
286      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
287        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
288    o pkg/seaice:
289      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
290    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
291      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
292        and initial HSALT
293    
294    checkpoint62w (2011/04/26)
295    o pkg/mom_fluxform:
296      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
297      - use parameter "sideDragFactor" in no-slip BC side-drag part.
298      - update output of exp. global_ocean.90x40x15
299    o pkg/mom_vecinv:
300      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
301    o update seaice exp.:
302      use more consistent parameter values (remove "backward compatability only":
303       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
304      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
305       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
306    o update test-exp global_ocean.90x40x15:
307      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
308      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
309      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
310      o turn on zStar & viscA4 in standard set-up (dir input/)
311        and update output files: output.txt & output.dwnslp.txt
312    o new AD-test experiment: obcs_ctrl
313      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
314    o pkg/dic:
315      fix two bugs in handling water vapour pressure in carbonate chemistry
316      and air-sea fluxes. Found by Val Bennington and Galen McKinley
317      (add DIC Option = WATERVAP_BUG to recover old results)
318      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
319    o adding allowInteriorFreezing option to check for water below freezing point
320      at depth and bring the negative heat anomaly to the surface level
321    o pkgs _fields_load:
322      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
323      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
324        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
325        rbcs to get interpolation weights and time reccord number.
326      - fix multi-threading in aim_fields_load.F
327      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
328    o external_fields_load:
329      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
330       interpolation weights) to use in a periodic time-series ; do not divide by
331       time-step to convert to integer:
332       - this fixes case where externForcingPeriod is not multiple of time-step
333          (Thanks to Christopher L. Wolfe)
334       - this fixes case where externForcingPeriod is an odd multiple of time-step
335         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
336      store index of time-record which is currently loaded:
337       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
338       - needed for the adjoint but not yet used because of extensive recomputations;
339         (to be fixed soon)
340    
341    checkpoint62v (2011/04/02)
342    o verification/1D_ocean_ice_column added to test Ian Fenty's
343      pkg/seaice_growth.F modifications for improving sea ice code differentiability
344    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
345      (new velocity statistics after changing maskInW & maskInS definition)
346    o pkg/generic_advdiff with OBCS:
347      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
348      equivalent to assumption of no tracer gradient outside the OB region.
349      This will affect the results if using obcs+biharmonic diffusion.
350      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
351    o pkg/obcs:
352      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
353      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
354      in Interior region. No impact on solution but affects Velocity monitor stats.
355    o pkg/ptracers (adjoint)
356      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
357      tape file for each tracer
358    o model/inc/src and pkg/autodiff: add parameters that allow to turn
359      of parts of the adjoint code at run time. For now, there are only
360      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
361      parameters are set in data.pkg.
362      This is the lazy coward's version of doing this, but still useful for
363      debugging. In order to do it right, everything needs to be moved to
364      pkg/autodiff.
365    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
366      the end; this fixes the adjoint balancing code for open boundaries.
367    o pkg/ctrl:
368      - change behavior of xx_${varname}period to be analogous to exf-conventions:
369        xx_${varname}period =   0.,  means time-independent control part
370        xx_${varname}period = -12., means one-year-periodic monthly control part
371      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
372        clean up ctrl_init a little, remove unused variables
373      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
374      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
375    
376    checkpoint62u (2011/03/15)
377    o model/src:
378      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
379        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
380      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
381        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
382    o pkg/ctrl/obcs/ecco:
383      - remove obsolete, unused, and partially broken code:
384        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
385        ALLOW_CTRL_OBCS_BALANCE
386      - put a stop statement into ecco/cost_obcsvol.F, but also add
387        cost_obcsvol to ecco_ad_diff.list
388    o pkg/ecco: fix counting cost function contributions for obcs (code
389      by Matt M.) and diffkr for diagnostics
390    o pkg/ecco, pkg/ctrl, pkg/grdchk:
391      add cost penalty terms for initial uvel, vvel, eta controls
392      and I/O for prior error files
393    o pkg/mdsio:
394       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
395       (new argument) to check for tiled file in mdsioLocalDir : this fix the
396       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
397    o pkg/ctrl:
398     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
399       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
400       unused and superfluous variables
401     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
402    o pkg/ecco
403     - enable adjoint of Stevens OB
404    o pkg/ctrl/ecco/grdchk:
405      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
406        Fortunately, we do not have any tests for the numerous cpp-flagged
407        option of "obcs as control parameters" so we will never know
408        if this is an improvement (but at least now things compile).
409      - remove an obsolete initialization from ecco_cost_init_barfiles.F
410      - fix some problems within never used ifdefs to make the code compile
411    o pkg/obcs:
412     - Refine Interior mask definition to work with more complex OB (e.g.
413       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
414       read in Interior mask from file. Check if Interior mask is consistent
415       with OB list of indices.
416    o pkg/seaice
417     - beginning code for a seaice tracer package,
418       but currently only used for seaice age: SEAICE_AGE
419       SEAICE_num = 4
420       iTracer = 1: area-weighted ice age
421               = 2: volume-weighted ice age
422               = 3, 4: template for one-year vs. multi-year ice
423       data.seaice has new namelist SEAICE_PARM03 for arrays related to
424       SEAICE_num
425    
426    checkpoint62t (2011/03/05)
427    o pkg/obcs:
428     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
429       then normal component. This ensures that the normal component is set
430       correctly even when it conficts with tangential setting from an other OB.
431       Affects results of test-experiment seaice_obcs: update the output.txt
432    o pkg/obcs:
433     - add code to monitor statistics of dynamical fields at OB.
434     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
435       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
436       - change default: balance the Net inflow through all OB (instead of balancing
437         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
438     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
439       to match Nortern OB inflow (OBCS_balanceFacN=0).
440    o pkg/seaice:
441     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
442    o pkg/seaice (seaice_growth v 1.113):
443     - reverting seaice_growth to v 1.111 in order to have code with exact bit
444       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
445       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
446       runtime flag SEAICEareaFormula is kept but is inactive
447    o model/src:
448     - add new param to scale curvilinear grid distance and area when using
449       a different sphere radius from the grid-files.
450     - test/check multi-threads EXCH applied to local variable (cg2d_x)
451    o adjoint:
452     - enable adjoint of Stevens OB
453     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
454       (a bit delicate because of potentially modified adj. common block structure;
455       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
456    
457    checkpoint62s (2011/02/15)
458    o pkg/seaice (seaice_growth v 1.112):
459     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
460       computing the ice cover tendency from effective thickness tendencies. Include
461       Ian Fenty's formula.
462     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
463       SEAICEareaFormula.
464     - simplify notations for the various d_HEFF/d_AREA terms.
465    o pkg/gmredi:
466     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
467       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
468       add a verification test-run (front_relax.bvp) to test GM_useBVP.
469    o pkg/seaice (seaice_growth v 1.111):
470     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
471     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
472       also melt ice.
473    o pkg/seaice:
474     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
475     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
476    o pkg/cheapaml:
477     - from Nico Wienders: New version of this package.
478    o pkg/flt:
479     - add CPP options to prevent floats to re-enter the opposite side of
480       a periodic domain (default: keep periodicity)
481    o pkg/gmredi:
482     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
483       (needed for multi-dim advection).
484     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
485    o model/src:
486     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
487    o tutorial_tracer_adjsens
488     - extend to NLFS and replace maskC by hFacC
489       (change reference output accordingly)
490    
491    checkpoint62r (2011/01/24)
492    o testreport:
493     - add option -deloutp (-do) to remove output file after successful run
494     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
495       extract exact list of procs from this file ; adjust COMMAND by
496       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
497    o pkg/ecco: replace old ineffective way of penalizing deviations from
498      first guess (of obcs) with code by Matt Mazloff
499    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
500      exf/cal
501      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
502        and handle case of obcs?period == 0
503        Not affected by these changes: There is still an inconsistency in
504        the computation of start/endrec for the obcs variables for ALLOW_CAL
505        defined (see comment by Menemenlis, 7-Mar-2003)
506      - make S/R ctrl_get_gen_rec return something meaningful even if
507        ALLOW_CAL is not defined
508      - ctrl_getobcs?: simplify code so that it does not need to use
509                       S/R exf_swapfields
510    o testreport:
511       allow to test MPI with different number of processors for each experiment:
512       create file "SIZE.h.mpi" in each build dir.
513       Note: update of "-command" argument not yet implemented.
514    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
515      alleviate the need for additional 3D tapes when using
516      the non-inear free surface in the adjoint. This is done
517      by adding an 'update' of hfacc etc. to their current
518      value at the beginning of forward_step.F.
519    o pkg/seaice
520      seaice_lsr: move stress-divergence computations out of outer pseudo-
521      timestepping loop
522    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
523      up, so that the calls of the ctrl_* subroutines are really at the end
524      of the routine.
525    o pkg/gmredi:
526      allow to specify a 2-D horizontal map and a 1-D vertical profil
527      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
528    o pkg/seaice:
529      move lsr iterations from seaice_dynsolver to seaice_lsr.
530    o pkg/seaice:
531      reduce memory footprint of seaice mutldim advection tapes,
532      by using a 2D tape independent of the generic_advdiff ones,
533      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
534    
535    checkpoint62q (2010/12/29)
536    o model/src:
537      - check horizontal grid-spacing for unset or zero/negative values.
538      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
539    o pkg/flt:
540      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
541      - precision of input and output files set according to readBinaryPrec
542        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
543      - initial float position from tiled file was not converted to index space
544        (looks like a bug): fixed to make it similar to initial pos. global file.
545    o global_ocean.cs32x15:
546       change SIZE.h of AD set-up to get same tiling as with MPI.
547       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
548    o model/src:
549       add flag to control printing of domain fields (bathymetry, hFac ...) in
550       ini_mask_etc (call to plot_fieds_xy*).
551    o pkg/thsice:
552       if useEXF, some forcing fields are not valid in overlap: fixed by computing
553       over the interior only + apply EXCH at the end (like with SEAICE advection).
554    o pkg/mdsio:
555      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
556        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
557      - change barrier call for safe multi-threads access to 3-D shared buffer.
558      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
559      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
560        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
561    o pkg/flt:
562      - add fourth-order Runge-Kutta integration
563      - add basic exch2 support (only 1 facet supported so far!)
564    o pkg/mdsio+rw:
565      new S/R to read local (or tile independent) vector (read counterpart of
566       mds_writevec_loc, and front-end write_glvec_rl/rs).
567    o global_ocean.cs32x15: additional input_ad.seaice experiment
568        that uses pkg/seaice rather than pkg/thsice.
569        (using multidim advection for seaice)
570    o towards more F95 syntax for array specification in namelist:
571      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
572        of all verification experiments.
573           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
574          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
575      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
576    o global_ocean.cs32x15: additional input.seaice experiment
577        that uses pkg/seaice rather than pkg/thsice.
578    
579    checkpoint62p (2010/12/17)
580    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
581        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
582    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
583        allow for use of multim. advection in seaice adjoint.
584    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
585      - first attempt to close budgets by taking into account the freshwater
586        flux implied by the sublimation of snow and ice. So far only the
587        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
588        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
589    o eesupp/src:
590      new S/R with new option (NML_EXTENDED_F77) to change array specification
591      from F95 standard to commonly accepted extended F77 form.
592      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
593      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
594      for less tolerant f77 compiler (e.g., pgf77, g77).
595    o globalFiles:
596      commented out in parameter file "data" since it's not safe with MPI
597      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
598      in this case); no longer commented out in restart test (tst_2+2).
599    o add adTapeDir to specify a special directory where adjoint tapes are
600      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
601      and cannot be used together with mdsioLocalDir.
602    o nesting pkgs:
603      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
604      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
605      - add parameter files + utils dir + output from short run on beagle.
606    o pkg/seaice:
607        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
608    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
609      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
610    
611    checkpoint62o (2010/11/25)
612    o pkg/exf:
613      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
614    o pkg/seaice:
615      - seaice_ocean_stress: split a loop for better vectorization of the
616        adjoint code
617      - seaice_growth.F: fix bug in conservation of freshwater connected to
618        capping of heff, put contribution into d_HEFFbyNEG
619      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
620        by something more sensible (parameters that are what their name implies)
621      - change some defaults, so that by default exf-parameters are used for
622        things like rhoAir, cpAir,latent/sensible heat parameters, in order
623        to reproduce the old results, many data.seaice now contain funny values
624        for cpAir and latent heat of sublimation
625    o packages_readparms.F: move exf_readparms up in line so that
626        exf-parameters are visible for other packages (e.g. seaice)
627    o debugMode & debugLevel=2:
628      - differentiate between debugMode & debugLevel=2:
629        debugMode: controls printing of debug messages (sequence of S/R calls).
630        debugLevel: controls printing of algorithm intermediate results and stats.
631      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
632        => allows to print debug-stats without all sequence of call messages.
633      - switch control of debug print from debugLevel to debugMode in many S/R.
634    o pkg/obcs (obcs-sponge):
635        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
636        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
637  o pkg/generic_advdiff:  o pkg/generic_advdiff:
638    - record overlap minimum size for each advection scheme;    - record overlap minimum size for each advection scheme;
639    - refine criteria on overlap minimum size;    - refine criteria on overlap minimum size;

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