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revision 1.1462 by jmc, Wed Jun 22 19:17:36 2011 UTC revision 1.1602 by mlosch, Thu Mar 1 23:58:43 2012 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/shelfice_thermodynamics.F
8      - fix exponents for velocity dependent exchange coefficients: change
9        from 2/3(=0) to 0.66666666666666667
10      - move computation of velocity dependent exchange coefficients into
11        separate loop, so that it applies to both thermodynamics
12      - move some divisions by constants out of loops
13    
14    checkpoint63j (2012/02/16)
15    o pkg/seaice:
16      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
17      - SItracer:  added run time params, and allow coupling to ocn salinity.
18    o pkg/seaice: remove (almost) all divisions by constants within loops
19      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
20      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
21      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
22      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
23    o pkg/seaice :
24      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
25        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
26      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
27      - add permanent SItflux diag that corresponds to TFLUX but includes
28        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
29      - allow activation/testing of a fix for suspected missing term in
30        ocn-ice heat budget (to be confirmed). To test this, you want to
31        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
32        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
33      - no change in results, fwd or ad.
34    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
35      - switch to variable freezing point.
36           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
37      - bug fix : the sublimation term that was missing is now activated.
38           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
39      - bug fix : flooding sign term for SIsal0.NE.0.
40           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
41    o pkg/seaice:
42      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
43        is now the default, and the old default constant freezing point is recovered
44        with SEAICE_tempFrz0    = -1.96,
45             SEAICE_dTempFrz_dS = 0.,
46      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
47      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
48      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
49        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
50      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
51        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
52      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
53        seaice_growth r149 for legacy branch (no results change).
54      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
55        from I. Fenty).
56      - results did not change except for global_ocean.cs32x15, mostly due to the
57        switch to variable freezing point (see above item for detail).
58    o pkg/thsice:
59      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
60        seawater freezing in thsice_calc_thickn (not used).
61    o pkg/seaice: turbulent flux term specification via run time params.
62      - replace CPP switches with run time switches to facilitate testing
63      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
64                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
65      - added runtime parameter : SEAICEturbFluxFormula
66      - move Mcphee constants to SEAICE_PARAMS.h
67      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
68                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
69                 remove seaice_summary call (moved to seaice_init_fixed)
70      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
71        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
72      - seaice_summary.F : add missing report of read turbulent flux term set up
73                           and SITRACER.
74      - seaice_check.F : check range; inform and stop if retired CPPs are used
75                         (incl. SEAICE_AGE).
76      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
77             CPP switch, same computation as before for the different options.
78      - change results at the truncation level.
79    o pkg/seaice:
80      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
81        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
82        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
83      - update verification/*/input*/data.seaice:
84        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
85        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
86        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
87        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
88    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
89      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
90        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
91        difference in results only due to machine truncation.
92      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
93        MaykutPolySatVap; keep MIN_LWDOWN.
94      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
95      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
96        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
97    o pkg/salt_plume:
98      - isolate saltPlumeFlux array exch into a specific S/R called from
99        do_oceanic_phys.F
100      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
101    o verification:
102      - move untested set-up to MITgcm_contrib/verification_other.
103    o pkg/seaice:
104      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
105    o pkg/seaice:
106      - seaice_solve4temp.F (keeping results unchanged):
107        * add 2 future run-time params to select which saturation vapor pressure
108          formula is used and how post-iteration fluxes are set.
109          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
110        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
111          the linearized expression to stay consistent with tsurf finding.
112      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
113        can be < 0.
114    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
115      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
116        conductive heat flux F_c , and add it explicitly when updating tsurf as
117        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
118        so that now F_ia has a consistent meaning through the entire routine.
119        This causes differences at truncation level: update output of fwd exp.
120        global_ocean.cs32x15.seaice.
121    o pkg/seaice:
122      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
123        of arrays, sign/direction of fluxes; no effect on results.
124      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
125        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
126        note: this should have been done before changing celsius2K default.
127      - to keep results unchanged, add back old value of celsius2K in verification
128        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
129      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
130        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
131        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
132        freezing temp is consistent with value in seaice_growth.F ; this causes
133        differences at machine truncation level: update lab_sea AD output (3/4).
134    o pkg/seaice:
135      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
136        and climsst/sss even when using seaice (to prevent calculation that might
137        use SST on land); does not affect any verification exp.
138      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
139        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
140    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
141      over land (non-legacy code)
142    o vectorize salt_plume package:
143      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
144      - this code computes plumebk everywhere (also over land), thus requires
145        code to avoid divisions by zero and catch the case of kLev=Nr.
146      - efficiency of salt_plume_frac is still sub-optimal
147    o tools (genmake2):
148      - fix makefile NAME specification (option: -makefile NAME) by adding
149        "-f $MAKEFILE" in few places where it was missing including makedepend
150        command (contribution from Paul).
151    
152    checkpoint63i (2012/01/24)
153    o model/src:
154      - add factorized versions of some EOS code to find_rho.F,
155        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
156    o model/src:
157      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
158      - change default celsius2K from 273.16 to 273.15
159      - to keep results unchanged, add back old value of celsius2K in verification
160        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
161         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
162    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
163      to make TAF generate vectorizable code
164    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
165       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
166       have flags that do this more efficiently.
167    o pkg/diagnostics/diagstats_calc.F
168      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
169    o pkg/obcs (with exch2):
170      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
171        and remove code (in obcs_readparms.F) which was based on EXCH of indices
172        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
173    o pkg/exf and seaice exp:
174      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
175        so that switching off area & heff advection flags does not affect results.
176      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
177      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
178        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
179        results of verification experiments: 1D_ocean_ice_column(fwd),
180        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
181        and offline_exf_seaice (all 4).
182    o pkg/seaice:
183      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
184        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
185      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
186        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
187        not multi-dim advection;
188      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
189        SHORTWAVE_HEATING #undef.
190    o optim: make Makefile more robust (?)
191    o pkg/obcs:
192      * fix treatment of obcs_read_pickup for TAF
193    o pkg/shelfice:
194      * add missing initialisation of num_shifwflx
195      * new adjoint verification exp. for isomip
196      * change Prandtl and Schmidt numbers from generic formulations
197        (in terms of model diffus. and visc.) to separate runtime
198        parameters, with Holland and Jenkins (1999) default values.
199    o pkg/exf (interpolation):
200      - extended input field (2 rows) near the N & S poles:
201        * fill in with the symetric value (when even Nb of data in longitude)
202        * add average value at the poles only for scalar quantities ; for vector
203          component interpolation, skip the averaging and keep duplicated values,
204          unless the 2 components have same location (uvInterp=T) in which case
205          interpolate the 2 components together using S/R EXF_INTERP_UV.
206      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
207        together: this allows to account properly for local orientation when
208        averaging at N & S pole.
209      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
210        exf-interpolation near N & S poles. Undef by default.
211      - add debug check/print on 1rst iter if debugLevel >=2.
212    o pkg/exf:
213      - change masking flags definition (no longer "parameter"), put them in
214        common block and set them in S/R EXF_INIT_FIXED.
215      - change recognized masking flag from s,u,v to c,w,s since the mask
216        to use (maskC,W,S) depends on position on model grid and has little to
217        do with scalar/vector difference; fix masking if using P-coordinates.
218      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
219        and update results of exp. global_with_exf (x2).
220      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
221    o pkg/obcs
222      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
223    o pkg/exf (interpolation):
224      - assume periodicity in X only if input field cover full longitude range.
225      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
226        and should vectorise).
227      - fix input lat of the 2 added row (in case we provide N.pole data).
228    
229    checkpoint63h (2011/12/30)
230    o pkg/seaice:
231      - change declaration of UVM from _RL to _RS in order to get B-grid
232        uIce,vIce monitor when _RS = real*4
233    o pkg/offline:
234      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
235      - compute vertical velocity if not read from file (switch on exactConserv
236        & staggerTimeStep);
237      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
238    o verification:
239      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
240        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
241        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
242      - update output of exp. global_ocean.cs32x15.viscA4 after changing
243        grid-file angles (used here for coriolis-3d);
244      - remove (or gzip) few files not needed to run fizhi-cs experiments.
245    o pkg/exf (vector interpolation):
246      - rotate vector component toward local grid-axis orientation using grid-angles
247        (stored in GRID.h) instead of locally computed rotation angle; keep old code
248        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
249    o pkg/seaice:
250      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
251        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
252    o pkg/PKG_OPTIONS.h files:
253      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
254        outside of the #ifdef ALLOW_THISPKG / #endif block.
255      - update verification/*/code/PKG_OPTIONS.h files.
256    o add a verification experiment (offline_exf_seaice/input.seaice) that test
257      the B-grid LSOR solver
258    o pkg/seaice: sort out emissivity and long wave radiation step 2:
259      - add emissivity for snow and ice as new run-time parameters
260        (unfortunately) that default to the corresponding exf values; this
261        changes results in most verification experiments so that for backward
262        compatibility these parameter have to be set explicitly to inconsistent
263        values (ugly);
264      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
265        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
266        until we agree how to handle this bug properly
267    o pkg/exf (interpolation):
268      - add a set of run-time param ({inputfield}_interpMethod), one for
269        each interpolated input field, to select the interpolation method
270        with a value of zero switching off the interpolation;
271      - print interpolation parameters to standard output;
272      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
273        (to use instead runoff_interpMethod=0 in data.exf).
274      - simplify default setting of interpolation parameters (for all fields,
275        set position to match model grid cell-center position, leading to trivial
276        interpolation in case of regular Lat-Lon grid) and fix for the case of
277        non-uniform delY.
278    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
279       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
280       this factor is absolutely required, because the lw exitance (= out-going
281       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
282       where the reflectivity rho = 1-emissivity for conservation reasons. Once
283       this is established, we can remove the CPP-Flag (if we want to).
284    o pkg/seaice:
285      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
286        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
287      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
288        what the name implies (and not emissivity*BoltzmannConstant), this means
289        the old default value of 5.5e-8 now means
290        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
291        S/R exf_readparms
292      - FV-discretization of the B-grid LSOR solver, turn on with
293        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
294        of the calling routine dynsolver, so that B and C-grid code look a
295        little more alike.
296      - fix index bugs in ostres.F (B-grid code)
297    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
298    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
299      default for SEAICE_emissivity, if useEXF; requires setting a wrong
300      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
301      backward compatiblity
302    o model/src: use sigmaR in calc_ivdc
303    
304    checkpoint63g (2011/12/16)
305    o pkg/seaice/seaice_growth.F:
306      fix heat conservation of the coupled ocean-seaice system.
307      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
308      solid vs liquid water treatment is resolved via QNET.
309    o pkg/seaice/seaice_growth.F:
310      add missing term for sublimation in saltFlux, which was breaking conservation.
311    o pkg/seaice/seaice_model.F:
312      Remove this patholigical case treatment in evolution branch,
313      where it is un-necessary and breaks conservation.
314      Update global_ocean.cs32x15/results accordingly for
315      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
316    o model/src:
317      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
318      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
319    o pkg/obcs:
320      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
321      tendency for temperature and salinity that is then applied to update
322      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
323      horizontal advection and diffusion contributions on the boundary (in
324      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
325      removing the mask in S/R timestep_tracer. The advantage of this approach is
326      that the updated tracer values include contributions from the surface
327      forcing and vertical diffusion.
328      This modification changes exp4.stevens because of vertical diffusion.
329    o model/src:
330      change non-curvilinear grid setting to also work with exch2 + blank tiles:
331      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
332        face dimensions.
333      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
334        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
335        and INI_SPHERICAL_POLAR_GRID.
336      change test-experiment global_ocean.90x40x15:
337      - split the domain in many more tiles (9x4 tiles of 10x10 each);
338      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
339      - update results of both test (std & dwnslp).
340    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
341       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
342    o model/src:
343      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
344        and fix initialisation when using sigma-coords.
345    o model/src:
346     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
347       to their current value at the beginning of forward_step.F": add a new run-time
348       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
349     - set doResetHFactors=T in the following test exp:
350        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
351        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
352        and tutorial_global_oce_in_p (nonLinFS in p)
353    o pkg/ecco
354      - added IES cost term
355    o verification/advect_xz
356      - scale down the depth by 1/100 (from 200 km to just 2.km)
357      - add secondary test using divergent flow, r-star and implicit vertical advection.
358      - add note (check_conserve_TS.txt) and matlab script to check global
359        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
360    o pkg/rbcs:
361      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
362    o pkg/obcs (Stevens BCs):
363      - fix various problems in the phase speed computations of the Stevens
364        boundary conditions:
365        - sign error for western and southern boundaries,
366        - time tendencies were underestimated by factor of dTracerLev and some just
367          zero (for multidim advection schemes) -> now estimate time tendencies
368          from difference between previous (n) time level and the one before (n-1);
369          this requires storing a field per tracer per boundary, also in the pickup
370          files.
371        - replace deltaTmom in cflMer/Zon computation with dTracerLev
372        - set default phase velocity to cflMer/Zon
373      - update verification experiment exp4.stevens
374    o pkg/generic_advdiff (implicit_r):
375      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
376        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
377      - fix implicit vertical diffusion or advection with NonLin FreeSurf
378        (was using current recip_hFacC instead of future recip_hFacC): set future
379        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
380        solver S/R ;
381      - fill diagnostics of vertical advective fluxes (computed from tendency)
382        when using implicit vert. advection;
383      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
384         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
385         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
386         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
387    o pkg/diagnostics:
388      - add diags for T & S tendency which goes through Adams-Bashforth.
389    
390    checkpoint63f (2011/11/30)
391    o pkg/obcs/obcs_calc_stevens.F:
392      - join some loops to reduce number of if-statements
393      - fix a bug in code for northern and southern boundaries.
394    o pkg/seaice/seaice_init_varia.F
395      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
396        caused zero ice-velocities for the B-grid code
397    o pkg/seaice/seaice_init_fixed.F
398      - fix a bug in the initialisation of the second metric terms
399        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
400      - this affects all seaice configurations with useCurviLinearGrid = .true.
401        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
402        = .true. (default)
403      - the only verification experiment affected is global_ocean.cs32x15:
404        icedyn, seaice, and seaice_dynmix (AD)
405    o pkg/thsice/thsice_diagnostics_state.F
406      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
407        not contain garbage that can lead to surprises in diagstats_calc.F
408    o model/src:
409      - move bi,bj loops inside INTEGR_CONTINUITY ;
410      - call INTEGR_CONTINUITY directly from forward_step.F
411        (previously called from momentum_correction_step.F)
412      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
413        forward_step.F and pkg/ecco/the_main_loop.F
414    o model/src/do_oceanic_phys.F:
415      - reset addMass to zero only if useICEFRONT ;
416      - separated k-loop for rhoInSitu calculation ;
417      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
418        and at constant T,S (= WdRHOdP);
419      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
420        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
421        transport of locally-referenced potential density);
422        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
423    o gluemnc:
424      - replace ncrcat with ncks when adding variables to *.glob.nc
425      - change the way variables without record dimensions are handled so that
426        files that have variables with and without record variables can be glued:
427        add a record dimension with a new unique name to be able to differentiate
428        between variable with and without a-prior record dimensions. Remove
429        this record dimension before adding the variable to the *.glob.nc file.
430        This procedure automatically works also for grid.*.nc files that do not
431        have any record dimension.
432    o verification/cpl_aim+ocn:
433      - generate new reference output on baudelaire (gfortran, mpich2) (previously
434        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
435    o pkg/obcs/obcs_calc_stevens.F:
436      - add code for northern and southern boundaries.
437      - reorder some loops to save some operations and so that drFBar can be scalar
438    o model/src:
439      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
440        truncation) and add diagnostics for Adams-Bashforth tendency increment.
441      - update test-exp. AD output:
442        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
443      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
444        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
445        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
446        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
447        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
448        tutorial_plume_on_slope.
449    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
450      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
451      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
452      does not even come with an F77 compiler anymore, this should not be
453      a limitation
454    
455    checkpoint63e (2011/11/06)
456    o pkg/seaice adjoint of LSR:
457      - substantially rework STORE dirs.
458      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
459        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
460        and only perform SOLV_MAX_FIXED adjoint iters.
461        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
462        always goes to same record, meaning that the last forward field will be
463        the one used in the adjoint - an approximation.
464      - now produces non-zero LSR-related gradients, and acceptable gradients for
465        An's zonal (x-z) test case (to be checked in)
466      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
467        (but these are screwed up by the thermodynamics in the first place);
468        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
469        output_adm.txt also reflects changes to seaice_lsr
470      - global_ocean.cs32x15:
471        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
472          (output_adm.seaice.txt was updated)
473        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
474          (output_adm.seaice_dynmix.txt)
475    o test-exp. exp4+stevens:
476      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
477    o pkg/seaice (lsr solver):
478      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
479        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
480      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
481      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
482        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
483      - compute (with new S/R) and print initial (+ free-driff sol. if available)
484        and final residual of linearised system.
485    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
486      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
487    o pkg/obcs: Stevens BCs (still only for east and west)
488      - fix Stevens BCs by using intermediate velocities of previous
489        time step as "baroclinic" contribution rather velocity of one grid cell
490        inside the boundaries; more consistent but makes the entire treatment
491        more complicated, requires new pickup files and two new S/Rs:
492        obcs_copy_uv_n and obcs_save_uv_n
493        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
494        (undefined by default)
495      - silently move computation of some grid factors into separate loops to
496        save some recomputations
497      - add a hack for non-linear free surface
498      - add a verification experiment to exp4 that tests this code
499    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
500    
501    checkpoint63d (2011/10/25)
502    o pkg/obcs + seaice-dynamics:
503      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
504        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
505        values (consistent with an implicit method).
506      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
507        return to older implementation (same results as before); note that none of
508        the "experimental" OBCS_SEAICE options are implemented in the new version.
509      - switch test exp. seaice_obcs to use new version (update output).
510    o pkg/seaice:
511      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
512      - add parenthesis in Water-Ice drag calculations (evp & lsr);
513      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
514        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
515      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
516        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
517    o pkg/layers:
518      - Include potential density as new coordinate (Thanks to David Munday)
519    o pkg/dic:
520      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
521        carbonate computation/output to CALC_PCO2_APPROX
522    o pkg/generic_advdiff
523      - make TAF generate code that vectorizes:
524        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
525    o model/src:
526      - improve vectorization also for adjoint code of
527        solve_tridiagonal and solve_pentadiagonal. As this requires up to
528        5 new 3D-fields, this code is only turned on for the combination of
529        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
530        for singular matrix check (only for TARGET_NEC_SX).
531      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
532        ALLOW_AUTODIFF. This flag now needs to be set outside of
533        solve_tri/pentadiagonal.F
534    o pkg/exf:
535      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
536        optional namelist EXF_NML_OBCS).
537      - add many debug-print (to trace down where pkg/cal error msg comes from)
538    o pkg/mom_vecinv/mom_vi_hdissip.F
539      - rearrange loops so that vectorization is improved and in particular
540        the adjoint routine vectorizes. The code is a little longer now, but I
541        think easier to read.
542        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
543    o pkg/seaice:
544      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
545    o pkg/exch2:
546      - alternative code (without tile x tile matrix) for cumulated (global) sum;
547        used as default; keep using matrix version in adjustment.cs-32x32x1.
548    o tools/build_options:
549      - after merging some MPI and/or multi-threads specific optfiles so that
550        the modified default optfile support both built (using genmake2 -mpi
551        for the MPI built, using genmake2 -omp for OpenMP built),
552        move now obsolete optfiles to tools/build_options/unsupported/
553       (add copy of email sent to support list in doc/optfiles_changes.txt)
554    
555    checkpoint63c (2011/09/28)
556    o pkg/ebm:
557      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
558        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
559    o pkg/seaice (SItracer pickup)
560    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
561      To be done:
562      - thorough testing of missing fields in S/R seaice_read_pickup
563      - thorough matching between generic tracers and specific fields used
564        (e.g. volume-weighted age, area-weighted age, salinity, ...)
565    o pkg/grdchk:
566      - all procs calculate and print finite-difference gradient (for testreport)
567      - change description output used by testreport;
568      - AD testing: also compare and report Finite-difference gradient;
569        => update all output_adm*.txt
570    o test exp. global_ocean_ebm:
571      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
572        and turn on exactConserve; update (fwd) output.
573    o pkg/seaice (LSR):
574      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
575      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
576        * identical results with non-CS topology (but save up to half of EXCH calls)
577        * no much changes in cs-32 verification tests since no ice at face edges
578         (differences due to convergence criteria, since nb of iterations changed)
579        * expect some differences on lat-lon-cap grid.
580        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
581    o pkg/exch2:
582      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
583        many tiles); until alternative coding is added, just add a stop.
584    o pkg/kpp:
585      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
586        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
587    o optfiles:
588      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
589        into corresponding standard one, which now support different build:
590        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
591      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
592    o pkg/obcs (seaice):
593      - add missing EXCH for uIce,vIce after applying OBCS;
594      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
595        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
596        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
597      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
598      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
599        and eedata.mth for MPI and mutlti-threaded testing.
600    o pkg/flt:
601      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
602      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
603      - fix pickup and trajectories + profiles output with multi-threads;
604      - add parameter to select group of fields to write along trajectory and
605        profile (default unchanged);
606      - only call PORT_RAND* function when flt_noise <> 0;
607      - add multi-threaded test for verification exp. flt_example.
608    o eesupp/src:
609      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
610      - USE_OMP_THREADING: check that number of threads (from eedata) matches
611        actual number (from env.var. setting).
612    o pkg/ebm:
613      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
614      - add multi-threaded test for verification exp. global_ocean_ebm
615    
616    checkpoint63b (2011/08/29)
617    o pkg/ebm:
618      - fix sign of runoff;
619      - update directly forcing fields (Qnet,EmPmR) to use standard
620        external_forcing_surf.F (remove ebm_forcing_surf.F);
621      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
622      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
623        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
624      - update global_ocean_ebm parameters file data and update output (fwd+ad).
625    o verification/matrix_example:
626      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
627        MPI and mutlti-threaded testing.
628    o pkg/matrix:
629      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
630      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
631      - fix for multi-threaded (remove DATA statement);
632      - use standard DIFFERENT_MULTIPLE function;
633      - add MATRIX_OPTIONS.h
634    o verification/matrix_example:
635       To allow to split the domain in several tiles, change the domain size
636        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
637        Western side) of land points.
638    o (*_)write_pickup:
639      - fix few bugs in mypackage_read/write_pickup.F
640      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
641        array of length 1 (was caught by compiler syntax-check).
642    o pkg/diagnostics (velocity potential solver):
643      - fix initialisation of main diagonal matrix (for overlap values)
644    o tools/build_options:
645      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
646        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
647      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
648        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
649        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
650        and use "-devel" testreport option for standard testing on baudelaire.
651    o pkg/grdchk:
652      - Assume that all gradient-check position are within the same tile
653        corresponding to global indices (iGloTile,jGloTile) and that
654        positions (i,j indices or nbeg) are local to this tile;
655      - set tile local-indices and proc. number according to tile global-indices;
656      - remove grdchkwhichproc from namelist (retired param);
657      - send adjoint gradient to all procs so that all procs print it to STDOUT;
658      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
659    o adding package bbl (Bottom Boundary Layer)
660      description in MITgcm/pkg/bbl/bbl_description.tex
661      example/test experiment in MITgcm_contrib/bbl
662    o adjoint verifications
663      - changed 5 experiments to multi-tiles
664        * global_ocean.90x40x15
665        * obcs_ctrl
666        * offline_exf_seaice
667        * tutorial_dic_adjoffline
668        * tutorial_tracer_adjsens
669        changed reference output for those that crossed tile boundaries
670        (changed choices of gradient check positions)
671      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
672      - temporary bug fix in grdchk_loc.F for obcs
673    o genmake2 & testreport
674      - add target "obj" (just for OBJFILES files) to Makefile;
675      - add option to specify FEXTRAFLAGS on command line.
676    o pkg/mypackage:
677      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
678    
679    checkpoint63a (2011/08/02)
680    o pkg/diagnostics (velocity potential):
681      - fix velocity-potential calculation when using OBCS: balance net inflow
682        at each level (new S/R OBCS_DIAG_BALANCE).
683      - fix some of the problems with OBCS in stream-function calculation.
684    o pkg/exf/exf_readparms.F
685      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
686        EXF_NML_OBCS) more consistent, so that you need not have these lists
687        in data.exf when they are not used.
688    o optim/optim_readdata.F:
689      - add some output about obcs variables that might help debugging
690      - add a check about nvarlength
691    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
692    o pkg/diagnostics (velocity potential):
693      - fix mask for OBCS (still problems in stream-function with OBCS);
694      - add specific parameter (default = main code CG2D params) for solver;
695      - in case of poor convergence, use solution corresponding to lowest residual.
696    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
697      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
698      and should be avoided where possible.
699    o model/src (rStar):
700      - include r* effect on reference-state (PhiRef) in totPhiHyd
701        (so that it's really the potential anomaly at the cell center);
702        affect solution only if z* with full pressure in EOS.
703      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
704        update output (because of z* in totPhiHyd and viscA4 changes);
705      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
706        @ constant r) until interpolation at constant r is implemented.
707    o pkg/diagnostics
708      - fix RCENTER diagnostics in case cell center is not at interface middle
709    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
710      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
711      that THETA and SALT are "conservative temperature" and "absolute
712      salinity"
713    o pkg/ctrl
714      - fix computation of endrec in s/r ctrl_init_rec
715      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
716    o pkg/seaice/seaice_growth.F
717      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
718        remove then obsolete STORE directives
719      - fix STORE directives for tice and tices, so that only the
720        appropriate part of the fields are stored (and not the entire
721        field); update global_ocean.cs32x15.seaice AD output.
722      - cosmetic changes: adjust CPP flags and indentation for better
723        legibilty
724    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
725      Chris Wilson)
726    o pkg/gmredi:
727       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
728       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
729    
730    checkpoint63  (2011/07/11)
731    o pkg/exch2:
732     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
733     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
734       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
735       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
736    o pkg/diagnostics:
737     - deal with pairs of post-processed diags which are computed together; in
738       particular, re-order list of diags within 1 file to save 2nd computation.
739     - add S/R to compute velocity stream-function (called after velocity-potential
740       calculation) from divergence free transport -> new diagnostics "PsiVEL".
741     - add parameter to select grid-point location where PsiVEL == 0.
742    o eesupp/src:
743       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
744       (specific S/R needed with exch2 topology - for now, just print an error msg)
745    o pkg/shelfice
746     - Implement friction velocity-dependent transfer coefficients following
747       Holland and Jenkins, JPO, 1999
748       Original code by M. Losch with small modifs.
749       Enable with CPP option SHI_ALLOW_GAMMAFRICT
750       and runtime flag SHELFICEuseGammaFrict
751    o verification lab_sea & global_ocean.cs32x15:
752     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
753       does not miss some dependencies (but is slower) and also works with many files
754       (default makedepend limitation for AD built).
755     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
756    o pkg/diagnostics:
757     - add run-time parameter "useMissingValue" (def=False) to fill land-point
758        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
759       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
760     - Extend the use of "missing_value" setting from data.diagnostics for the case
761       of counter-diagnostics (where fraction-weight is zero). This applies both to
762       MNC and MDS output files.
763    o pkg/seaice/seaice_growth.F:
764      - add 'a priori' cap of latent heat flux based on actual mass considerations
765        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
766        non-legacy seaice_solve4temp.
767      - add diagnostic of the residual sublimation freshwater flux (the freshwater
768        flux taken from the ocean if the total actual latent heat fluxes exceed
769        the maximum)
770      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
771       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
772      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
773       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
774      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
775      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
776    o verification 1D_ocean_ice_column:
777       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
778       update results
779  o pkg/diagnostics:  o pkg/diagnostics:
780   - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')   - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
781     which are not filled-up but computed from other diags ; In this case, the mate     which are not filled-up but computed from other diags ; In this case, the mate
782     diag points to the primary (filled-up) diag to used for post processing.     diag points to the primary (filled-up) diag to used for post processing.
783   - Update Velocity-potential computation using post-processed diag framework.   - Update Velocity-potential computation using post-processed diag framework.
784   Change the ordering of fields and time-periods in MDS output file   ==> Change the ordering of fields and time-periods in MDS output file
785     when using periodic averaging: now writes one time record with the full set     when using periodic averaging: now writes one time record with the full set
786     of fields for this time period, then the next time reccord (it used to be     of fields for this time period, then the next time reccord (it used to be
787     one field with the full set of time records then the next field).     one field with the full set of time records then the next field).
788     Note: this is now similar to NetCDF (MNC) output file.       Note: this is now similar to NetCDF (MNC) output file. <==
789    
790  checkpoint62z (2011/06/21)  checkpoint62z (2011/06/21)
791  o adjoint monitor:  o adjoint monitor:
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