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revision 1.1361 by jmc, Wed Dec 29 16:41:28 2010 UTC revision 1.1441 by jmc, Wed May 25 21:13:53 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/seaice + obcs:
8     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
9       equivalent of assuming no tracer gradient outside the OB region.
10       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
11     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
12       after changes above);
13     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
14       only at OB location (instead of over a band of OLx width).
15    o pkg/seaice:
16     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
17       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
18    o pkg/obcs:
19      - split header file "OBCS.h" into 4 separated files:
20        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
21       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
22         (contain no conditional statement which depends on OBCS options).
23      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
24        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
25    o ctrl, cost, grdchk & autodiff pkgs:
26      - make options file more standard (like other {PKG}_OPTIONS.h file but
27        with AD_CONFIG.h); clean-up some of the included header files.
28    o pkg/obcs:
29      - do not mask tracer when applying OB (tracer == 0 could generate problems)
30      - apply tracer OB values to tracer field only at OB location (instead of
31        over a band of OLx width)
32      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
33      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
34        obcs_apply_tloc.F & obcs_apply_sloc.F
35    o obcs in model/src:
36      - call OBCS_APPLY_W only if NonHydrostatic.
37      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
38      - reset dEtaHdt and wVel to zero outside OB interior region ;
39      - leave tracer unchanged outside OB interior region: This has no effect
40        on the solution but just to prevent unrealistic tracer value outside OB.
41      - zero out velocity outside OB interior region: This has no effect on
42        the solution but just to prevent unrealistic velocity outside OB.
43    o obcs and non-lin free-surf:
44       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
45       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
46       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
47       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
48       update results of test-exp. exp4(nlfs).
49    o exp4 (nlfs) test-exp:
50       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
51       with NonLin-FreeSurf); update output.nlfs.txt
52    o obcs and 2d/3d solver norm:
53       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
54       and outside OB interior region (will allow to place OB further inside the
55       domain). Depending on the domain, can affects cg2d-Norm (previous
56       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
57       and cg3d-Norm (previous Norm was computed before canceling OB terms),
58       e.g. in tutorial_plume_on_slope.
59      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
60    o pkg rbcs:
61      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
62      - add capability to apply relaxation to horizontal velocity uVel & vVel.
63    o pkg/grdchk: add gradient check for control variable xx_shifwflx
64    o pkg/shelfice/shelfice_init_fixed.F
65      fix CPP-flag combinations
66    o pkg/seaice: Merge iceage code of Pierre Rampal
67      * update/change/correct ice age calculations
68      * add age updates for pathological cases
69      Probably needs more testing...
70    
71    checkpoint62x (2011/05/13)
72    o pkg/mom_vecinv:
73       high-order vorticity scheme: use interior masks (maskInW & S)
74       to zero-out (outside OB) gradient of vorticity.
75    o verification exp.:
76       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
77       hs94.128x64x5 and seaice_obcs ; update results.
78    o pkg/obcs:
79      fix bug in OBeta for YZ sections in obcs_exf_load.F
80    o pkg/ctrl, pkg/shelfice, and optim:
81      - add new control variable xx_shifwflx (fresh water flux underneath ice
82        shelves). This is almost as tedious as obcs-ctrl, because the
83        variables needs its own mask.
84      - add a cost function term that penalizes the deviation of xx_shifwflx
85        from the first guess (zero) in analogy to other control variables
86    o pkg/shelfice:
87      - start basic adjoint
88    o pkg/ctrl:
89      - remove extra 2D field "for good measure" when initializing in
90        ctrl_set_globfld_[xy/xz/yz].F
91      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
92      - improve error messages in ctrl_set_unpack_*
93    o OBC implementation in momentum:
94       use interior masks (maskInC,W & S) in momentum S/R:
95       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
96       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
97       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
98       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
99       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
100        (and also with Leith/Smagorinsky harmonic-viscosity).
101       Update output of experiment dome and exp4 (+nlfs).
102    o exp4 test-exp:
103      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
104        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
105        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
106        time-varying OB at Western-side for wVel (NonHyd); update output.
107      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
108        and biharmonic-viscosity ; also use prescribed time varying OB.
109    o pkg/obcs:
110      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
111    o model/src:
112      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
113      - initialise startTime & nIter0 with unlikely values: allows to set one
114        from the other without ambiguity.
115    o seaice_obcs test-exp.:
116      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
117    o pkg/obcs:
118      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
119        no longer needed with maskInC,W,S in pkg/generic_advdiff.
120    o pkg/seaice:
121      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
122        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
123      - fixed bug in the initialization of sea ice salinity variable HSALT
124        in seaice_init_varia.F  (removed dependence on ICE2WATR)
125    o fizhi-cs test exp.:
126       switch reference output convention for these 2 non-standard test-exp,
127        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
128          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
129       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
130    o model/inc:
131      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
132        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
133    o pkg/seaice:
134      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
135    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
136      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
137        and initial HSALT
138    
139    checkpoint62w (2011/04/26)
140    o pkg/mom_fluxform:
141      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
142      - use parameter "sideDragFactor" in no-slip BC side-drag part.
143      - update output of exp. global_ocean.90x40x15
144    o pkg/mom_vecinv:
145      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
146    o update seaice exp.:
147      use more consistent parameter values (remove "backward compatability only":
148       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
149      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
150       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
151    o update test-exp global_ocean.90x40x15:
152      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
153      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
154      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
155      o turn on zStar & viscA4 in standard set-up (dir input/)
156        and update output files: output.txt & output.dwnslp.txt
157    o new AD-test experiment: obcs_ctrl
158      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
159    o pkg/dic:
160      fix two bugs in handling water vapour pressure in carbonate chemistry
161      and air-sea fluxes. Found by Val Bennington and Galen McKinley
162      (add DIC Option = WATERVAP_BUG to recover old results)
163      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
164    o adding allowInteriorFreezing option to check for water below freezing point
165      at depth and bring the negative heat anomaly to the surface level
166    o pkgs _fields_load:
167      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
168      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
169        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
170        rbcs to get interpolation weights and time reccord number.
171      - fix multi-threading in aim_fields_load.F
172      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
173    o external_fields_load:
174      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
175       interpolation weights) to use in a periodic time-series ; do not divide by
176       time-step to convert to integer:
177       - this fixes case where externForcingPeriod is not multiple of time-step
178          (Thanks to Christopher L. Wolfe)
179       - this fixes case where externForcingPeriod is an odd multiple of time-step
180         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
181      store index of time-record which is currently loaded:
182       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
183       - needed for the adjoint but not yet used because of extensive recomputations;
184         (to be fixed soon)
185    
186    checkpoint62v (2011/04/02)
187    o verification/1D_ocean_ice_column added to test Ian Fenty's
188      pkg/seaice_growth.F modifications for improving sea ice code differentiability
189    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
190      (new velocity statistics after changing maskInW & maskInS definition)
191    o pkg/generic_advdiff with OBCS:
192      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
193      equivalent to assumption of no tracer gradient outside the OB region.
194      This will affect the results if using obcs+biharmonic diffusion.
195      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
196    o pkg/obcs:
197      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
198      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
199      in Interior region. No impact on solution but affects Velocity monitor stats.
200    o pkg/ptracers (adjoint)
201      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
202      tape file for each tracer
203    o model/inc/src and pkg/autodiff: add parameters that allow to turn
204      of parts of the adjoint code at run time. For now, there are only
205      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
206      parameters are set in data.pkg.
207      This is the lazy coward's version of doing this, but still useful for
208      debugging. In order to do it right, everything needs to be moved to
209      pkg/autodiff.
210    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
211      the end; this fixes the adjoint balancing code for open boundaries.
212    o pkg/ctrl:
213      - change behavior of xx_${varname}period to be analogous to exf-conventions:
214        xx_${varname}period =   0.,  means time-independent control part
215        xx_${varname}period = -12., means one-year-periodic monthly control part
216      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
217        clean up ctrl_init a little, remove unused variables
218      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
219      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
220    
221    checkpoint62u (2011/03/15)
222    o model/src:
223      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
224        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
225      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
226        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
227    o pkg/ctrl/obcs/ecco:
228      - remove obsolete, unused, and partially broken code:
229        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
230        ALLOW_CTRL_OBCS_BALANCE
231      - put a stop statement into ecco/cost_obcsvol.F, but also add
232        cost_obcsvol to ecco_ad_diff.list
233    o pkg/ecco: fix counting cost function contributions for obcs (code
234      by Matt M.) and diffkr for diagnostics
235    o pkg/ecco, pkg/ctrl, pkg/grdchk:
236      add cost penalty terms for initial uvel, vvel, eta controls
237      and I/O for prior error files
238    o pkg/mdsio:
239       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
240       (new argument) to check for tiled file in mdsioLocalDir : this fix the
241       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
242    o pkg/ctrl:
243     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
244       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
245       unused and superfluous variables
246     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
247    o pkg/ecco
248     - enable adjoint of Stevens OB
249    o pkg/ctrl/ecco/grdchk:
250      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
251        Fortunately, we do not have any tests for the numerous cpp-flagged
252        option of "obcs as control parameters" so we will never know
253        if this is an improvement (but at least now things compile).
254      - remove an obsolete initialization from ecco_cost_init_barfiles.F
255      - fix some problems within never used ifdefs to make the code compile
256    o pkg/obcs:
257     - Refine Interior mask definition to work with more complex OB (e.g.
258       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
259       read in Interior mask from file. Check if Interior mask is consistent
260       with OB list of indices.
261    o pkg/seaice
262     - beginning code for a seaice tracer package,
263       but currently only used for seaice age: SEAICE_AGE
264       SEAICE_num = 4
265       iTracer = 1: area-weighted ice age
266               = 2: volume-weighted ice age
267               = 3, 4: template for one-year vs. multi-year ice
268       data.seaice has new namelist SEAICE_PARM03 for arrays related to
269       SEAICE_num
270    
271    checkpoint62t (2011/03/05)
272    o pkg/obcs:
273     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
274       then normal component. This ensures that the normal component is set
275       correctly even when it conficts with tangential setting from an other OB.
276       Affects results of test-experiment seaice_obcs: update the output.txt
277    o pkg/obcs:
278     - add code to monitor statistics of dynamical fields at OB.
279     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
280       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
281       - change default: balance the Net inflow through all OB (instead of balancing
282         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
283     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
284       to match Nortern OB inflow (OBCS_balanceFacN=0).
285    o pkg/seaice:
286     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
287    o pkg/seaice (seaice_growth v 1.113):
288     - reverting seaice_growth to v 1.111 in order to have code with exact bit
289       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
290       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
291       runtime flag SEAICEareaFormula is kept but is inactive
292    o model/src:
293     - add new param to scale curvilinear grid distance and area when using
294       a different sphere radius from the grid-files.
295     - test/check multi-threads EXCH applied to local variable (cg2d_x)
296    o adjoint:
297     - enable adjoint of Stevens OB
298     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
299       (a bit delicate because of potentially modified adj. common block structure;
300       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
301    
302    checkpoint62s (2011/02/15)
303    o pkg/seaice (seaice_growth v 1.112):
304     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
305       computing the ice cover tendency from effective thickness tendencies. Include
306       Ian Fenty's formula.
307     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
308       SEAICEareaFormula.
309     - simplify notations for the various d_HEFF/d_AREA terms.
310    o pkg/gmredi:
311     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
312       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
313       add a verification test-run (front_relax.bvp) to test GM_useBVP.
314    o pkg/seaice (seaice_growth v 1.111):
315     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
316     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
317       also melt ice.
318    o pkg/seaice:
319     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
320     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
321    o pkg/cheapaml:
322     - from Nico Wienders: New version of this package.
323    o pkg/flt:
324     - add CPP options to prevent floats to re-enter the opposite side of
325       a periodic domain (default: keep periodicity)
326    o pkg/gmredi:
327     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
328       (needed for multi-dim advection).
329     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
330    o model/src:
331     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
332    o tutorial_tracer_adjsens
333     - extend to NLFS and replace maskC by hFacC
334       (change reference output accordingly)
335    
336    checkpoint62r (2011/01/24)
337    o testreport:
338     - add option -deloutp (-do) to remove output file after successful run
339     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
340       extract exact list of procs from this file ; adjust COMMAND by
341       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
342    o pkg/ecco: replace old ineffective way of penalizing deviations from
343      first guess (of obcs) with code by Matt Mazloff
344    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
345      exf/cal
346      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
347        and handle case of obcs?period == 0
348        Not affected by these changes: There is still an inconsistency in
349        the computation of start/endrec for the obcs variables for ALLOW_CAL
350        defined (see comment by Menemenlis, 7-Mar-2003)
351      - make S/R ctrl_get_gen_rec return something meaningful even if
352        ALLOW_CAL is not defined
353      - ctrl_getobcs?: simplify code so that it does not need to use
354                       S/R exf_swapfields
355    o testreport:
356       allow to test MPI with different number of processors for each experiment:
357       create file "SIZE.h.mpi" in each build dir.
358       Note: update of "-command" argument not yet implemented.
359    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
360      alleviate the need for additional 3D tapes when using
361      the non-inear free surface in the adjoint. This is done
362      by adding an 'update' of hfacc etc. to their current
363      value at the beginning of forward_step.F.
364    o pkg/seaice
365      seaice_lsr: move stress-divergence computations out of outer pseudo-
366      timestepping loop
367    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
368      up, so that the calls of the ctrl_* subroutines are really at the end
369      of the routine.
370    o pkg/gmredi:
371      allow to specify a 2-D horizontal map and a 1-D vertical profil
372      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
373    o pkg/seaice:
374      move lsr iterations from seaice_dynsolver to seaice_lsr.
375    o pkg/seaice:
376      reduce memory footprint of seaice mutldim advection tapes,
377      by using a 2D tape independent of the generic_advdiff ones,
378      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
379    
380  checkpoint62q (2010/12/29)  checkpoint62q (2010/12/29)
381  o model/src:  o model/src:
382    - check horizontal grid-spacing for unset or zero/negative values.    - check horizontal grid-spacing for unset or zero/negative values.

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