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revision 1.1528 by mlosch, Mon Nov 7 09:21:02 2011 UTC revision 1.1584 by mlosch, Mon Jan 30 15:30:50 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/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
8      over land (non-legacy code)
9    o vectorize salt_plume package:
10      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
11      - this code computes plumebk everywhere (also over land), thus requires
12        code to avoid divisions by zero and catch the case of kLev=Nr.
13      - efficiency of salt_plume_frac is still sub-optimal
14    o tools (genmake2):
15      - fix makefile NAME specification (option: -makefile NAME) by adding
16        "-f $MAKEFILE" in few places where it was missing including makedepend
17        command (contribution from Paul).
18    
19    checkpoint63i (2012/01/24)
20    o model/src:
21      - add factorized versions of some EOS code to find_rho.F,
22        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
23    o model/src:
24      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
25      - change default celsius2K from 273.16 to 273.15
26      - to keep results unchanged, add back old value of celsius2K in verification
27        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
28         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
29    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
30      to make TAF generate vectorizable code
31    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
32       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
33       have flags that do this more efficiently.
34    o pkg/diagnostics/diagstats_calc.F
35      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
36    o pkg/obcs (with exch2):
37      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
38        and remove code (in obcs_readparms.F) which was based on EXCH of indices
39        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
40    o pkg/exf and seaice exp:
41      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
42        so that switching off area & heff advection flags does not affect results.
43      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
44      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
45        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
46        results of verification experiments: 1D_ocean_ice_column(fwd),
47        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
48        and offline_exf_seaice (all 4).
49    o pkg/seaice:
50      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
51        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
52      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
53        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
54        not multi-dim advection;
55      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
56        SHORTWAVE_HEATING #undef.
57    o optim: make Makefile more robust (?)
58    o pkg/obcs:
59      * fix treatment of obcs_read_pickup for TAF
60    o pkg/shelfice:
61      * add missing initialisation of num_shifwflx
62      * new adjoint verification exp. for isomip
63      * change Prandtl and Schmidt numbers from generic formulations
64        (in terms of model diffus. and visc.) to separate runtime
65        parameters, with Holland and Jenkins (1999) default values.
66    o pkg/exf (interpolation):
67      - extended input field (2 rows) near the N & S poles:
68        * fill in with the symetric value (when even Nb of data in longitude)
69        * add average value at the poles only for scalar quantities ; for vector
70          component interpolation, skip the averaging and keep duplicated values,
71          unless the 2 components have same location (uvInterp=T) in which case
72          interpolate the 2 components together using S/R EXF_INTERP_UV.
73      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
74        together: this allows to account properly for local orientation when
75        averaging at N & S pole.
76      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
77        exf-interpolation near N & S poles. Undef by default.
78      - add debug check/print on 1rst iter if debugLevel >=2.
79    o pkg/exf:
80      - change masking flags definition (no longer "parameter"), put them in
81        common block and set them in S/R EXF_INIT_FIXED.
82      - change recognized masking flag from s,u,v to c,w,s since the mask
83        to use (maskC,W,S) depends on position on model grid and has little to
84        do with scalar/vector difference; fix masking if using P-coordinates.
85      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
86        and update results of exp. global_with_exf (x2).
87      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
88    o pkg/obcs
89      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
90    o pkg/exf (interpolation):
91      - assume periodicity in X only if input field cover full longitude range.
92      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
93        and should vectorise).
94      - fix input lat of the 2 added row (in case we provide N.pole data).
95    
96    checkpoint63h (2011/12/30)
97    o pkg/seaice:
98      - change declaration of UVM from _RL to _RS in order to get B-grid
99        uIce,vIce monitor when _RS = real*4
100    o pkg/offline:
101      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
102      - compute vertical velocity if not read from file (switch on exactConserv
103        & staggerTimeStep);
104      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
105    o verification:
106      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
107        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
108        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
109      - update output of exp. global_ocean.cs32x15.viscA4 after changing
110        grid-file angles (used here for coriolis-3d);
111      - remove (or gzip) few files not needed to run fizhi-cs experiments.
112    o pkg/exf (vector interpolation):
113      - rotate vector component toward local grid-axis orientation using grid-angles
114        (stored in GRID.h) instead of locally computed rotation angle; keep old code
115        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
116    o pkg/seaice:
117      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
118        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
119    o pkg/PKG_OPTIONS.h files:
120      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
121        outside of the #ifdef ALLOW_THISPKG / #endif block.
122      - update verification/*/code/PKG_OPTIONS.h files.
123    o add a verification experiment (offline_exf_seaice/input.seaice) that test
124      the B-grid LSOR solver
125    o pkg/seaice: sort out emissivity and long wave radiation step 2:
126      - add emissivity for snow and ice as new run-time parameters
127        (unfortunately) that default to the corresponding exf values; this
128        changes results in most verification experiments so that for backward
129        compatibility these parameter have to be set explicitly to inconsistent
130        values (ugly);
131      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
132        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
133        until we agree how to handle this bug properly
134    o pkg/exf (interpolation):
135      - add a set of run-time param ({inputfield}_interpMethod), one for
136        each interpolated input field, to select the interpolation method
137        with a value of zero switching off the interpolation;
138      - print interpolation parameters to standard output;
139      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
140        (to use instead runoff_interpMethod=0 in data.exf).
141      - simplify default setting of interpolation parameters (for all fields,
142        set position to match model grid cell-center position, leading to trivial
143        interpolation in case of regular Lat-Lon grid) and fix for the case of
144        non-uniform delY.
145    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
146       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
147       this factor is absolutely required, because the lw exitance (= out-going
148       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
149       where the reflectivity rho = 1-emissivity for conservation reasons. Once
150       this is established, we can remove the CPP-Flag (if we want to).
151    o pkg/seaice:
152      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
153        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
154      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
155        what the name implies (and not emissivity*BoltzmannConstant), this means
156        the old default value of 5.5e-8 now means
157        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
158        S/R exf_readparms
159      - FV-discretization of the B-grid LSOR solver, turn on with
160        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
161        of the calling routine dynsolver, so that B and C-grid code look a
162        little more alike.
163      - fix index bugs in ostres.F (B-grid code)
164    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
165    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
166      default for SEAICE_emissivity, if useEXF; requires setting a wrong
167      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
168      backward compatiblity
169    o model/src: use sigmaR in calc_ivdc
170    
171    checkpoint63g (2011/12/16)
172    o pkg/seaice/seaice_growth.F:
173      fix heat conservation of the coupled ocean-seaice system.
174      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
175      solid vs liquid water treatment is resolved via QNET.
176    o pkg/seaice/seaice_growth.F:
177      add missing term for sublimation in saltFlux, which was breaking conservation.
178    o pkg/seaice/seaice_model.F:
179      Remove this patholigical case treatment in evolution branch,
180      where it is un-necessary and breaks conservation.
181      Update global_ocean.cs32x15/results accordingly for
182      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
183    o model/src:
184      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
185      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
186    o pkg/obcs:
187      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
188      tendency for temperature and salinity that is then applied to update
189      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
190      horizontal advection and diffusion contributions on the boundary (in
191      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
192      removing the mask in S/R timestep_tracer. The advantage of this approach is
193      that the updated tracer values include contributions from the surface
194      forcing and vertical diffusion.
195      This modification changes exp4.stevens because of vertical diffusion.
196    o model/src:
197      change non-curvilinear grid setting to also work with exch2 + blank tiles:
198      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
199        face dimensions.
200      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
201        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
202        and INI_SPHERICAL_POLAR_GRID.
203      change test-experiment global_ocean.90x40x15:
204      - split the domain in many more tiles (9x4 tiles of 10x10 each);
205      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
206      - update results of both test (std & dwnslp).
207    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
208       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
209    o model/src:
210      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
211        and fix initialisation when using sigma-coords.
212    o model/src:
213     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
214       to their current value at the beginning of forward_step.F": add a new run-time
215       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
216     - set doResetHFactors=T in the following test exp:
217        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
218        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
219        and tutorial_global_oce_in_p (nonLinFS in p)
220    o pkg/ecco
221      - added IES cost term
222    o verification/advect_xz
223      - scale down the depth by 1/100 (from 200 km to just 2.km)
224      - add secondary test using divergent flow, r-star and implicit vertical advection.
225      - add note (check_conserve_TS.txt) and matlab script to check global
226        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
227    o pkg/rbcs:
228      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
229    o pkg/obcs (Stevens BCs):
230      - fix various problems in the phase speed computations of the Stevens
231        boundary conditions:
232        - sign error for western and southern boundaries,
233        - time tendencies were underestimated by factor of dTracerLev and some just
234          zero (for multidim advection schemes) -> now estimate time tendencies
235          from difference between previous (n) time level and the one before (n-1);
236          this requires storing a field per tracer per boundary, also in the pickup
237          files.
238        - replace deltaTmom in cflMer/Zon computation with dTracerLev
239        - set default phase velocity to cflMer/Zon
240      - update verification experiment exp4.stevens
241    o pkg/generic_advdiff (implicit_r):
242      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
243        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
244      - fix implicit vertical diffusion or advection with NonLin FreeSurf
245        (was using current recip_hFacC instead of future recip_hFacC): set future
246        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
247        solver S/R ;
248      - fill diagnostics of vertical advective fluxes (computed from tendency)
249        when using implicit vert. advection;
250      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
251         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
252         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
253         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
254    o pkg/diagnostics:
255      - add diags for T & S tendency which goes through Adams-Bashforth.
256    
257    checkpoint63f (2011/11/30)
258    o pkg/obcs/obcs_calc_stevens.F:
259      - join some loops to reduce number of if-statements
260      - fix a bug in code for northern and southern boundaries.
261    o pkg/seaice/seaice_init_varia.F
262      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
263        caused zero ice-velocities for the B-grid code
264    o pkg/seaice/seaice_init_fixed.F
265      - fix a bug in the initialisation of the second metric terms
266        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
267      - this affects all seaice configurations with useCurviLinearGrid = .true.
268        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
269        = .true. (default)
270      - the only verification experiment affected is global_ocean.cs32x15:
271        icedyn, seaice, and seaice_dynmix (AD)
272    o pkg/thsice/thsice_diagnostics_state.F
273      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
274        not contain garbage that can lead to surprises in diagstats_calc.F
275    o model/src:
276      - move bi,bj loops inside INTEGR_CONTINUITY ;
277      - call INTEGR_CONTINUITY directly from forward_step.F
278        (previously called from momentum_correction_step.F)
279      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
280        forward_step.F and pkg/ecco/the_main_loop.F
281    o model/src/do_oceanic_phys.F:
282      - reset addMass to zero only if useICEFRONT ;
283      - separated k-loop for rhoInSitu calculation ;
284      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
285        and at constant T,S (= WdRHOdP);
286      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
287        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
288        transport of locally-referenced potential density);
289        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
290    o gluemnc:
291      - replace ncrcat with ncks when adding variables to *.glob.nc
292      - change the way variables without record dimensions are handled so that
293        files that have variables with and without record variables can be glued:
294        add a record dimension with a new unique name to be able to differentiate
295        between variable with and without a-prior record dimensions. Remove
296        this record dimension before adding the variable to the *.glob.nc file.
297        This procedure automatically works also for grid.*.nc files that do not
298        have any record dimension.
299    o verification/cpl_aim+ocn:
300      - generate new reference output on baudelaire (gfortran, mpich2) (previously
301        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
302    o pkg/obcs/obcs_calc_stevens.F:
303      - add code for northern and southern boundaries.
304      - reorder some loops to save some operations and so that drFBar can be scalar
305    o model/src:
306      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
307        truncation) and add diagnostics for Adams-Bashforth tendency increment.
308      - update test-exp. AD output:
309        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
310      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
311        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
312        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
313        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
314        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
315        tutorial_plume_on_slope.
316  o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX  o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
317    that vectorises. This code uses 3 extra 2D fields, F90 array assignments    that vectorises. This code uses 3 extra 2D fields, F90 array assignments
318    and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX    and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX

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