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revision 1.1528 by mlosch, Mon Nov 7 09:21:02 2011 UTC revision 1.1560 by mlosch, Thu Dec 22 15:38:56 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 add a verification experiment (offline_exf_seaice/input.seaice) that test
8      the B-grid LSOR solver
9    o pkg/seaice: sort out emissivity and long wave radiation step 2:
10      - add emissivity for snow and ice as new run-time parameters
11        (unfortunately) that default to the corresponding exf values; this
12        changes results in most verification experiments so that for backward
13        compatibility these parameter have to be set explicitly to inconsistent
14        values (ugly);
15      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
16        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
17        until we agree how to handle this bug properly
18    o pkg/exf (interpolation):
19      - add a set of run-time param ({inputfield}_interpMethod), one for
20        each interpolated input field, to select the interpolation method
21        with a value of zero switching off the interpolation;
22      - print interpolation parameters to standard output;
23      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
24        (to use instead runoff_interpMethod=0 in data.exf).
25      - simplify default setting of interpolation parameters (for all fields,
26        set position to match model grid cell-center position, leading to trivial
27        interpolation in case of regular Lat-Lon grid) and fix for the case of
28        non-uniform delY.
29    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
30       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
31       this factor is absolutely required, because the lw exitance (= out-going
32       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
33       where the reflectivity rho = 1-emissivity for conservation reasons. Once
34       this is established, we can remove the CPP-Flag (if we want to).
35    o pkg/seaice:
36      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
37        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
38      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
39        what the name implies (and not emissivity*BoltzmannConstant), this means
40        the old default value of 5.5e-8 now means
41        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
42        S/R exf_readparms
43      - FV-discretization of the B-grid LSOR solver, turn on with
44        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
45        of the calling routine dynsolver, so that B and C-grid code look a
46        little more alike.
47      - fix index bugs in ostres.F (B-grid code)
48    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
49    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
50      default for SEAICE_emissivity, if useEXF; requires setting a wrong
51      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
52      backward compatiblity
53    o model/src: use sigmaR in calc_ivdc
54    
55    checkpoint63g (2011/12/16)
56    o pkg/seaice/seaice_growth.F:
57      fix heat conservation of the coupled ocean-seaice system.
58      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
59      solid vs liquid water treatment is resolved via QNET.
60    o pkg/seaice/seaice_growth.F:
61      add missing term for sublimation in saltFlux, which was breaking conservation.
62    o pkg/seaice/seaice_model.F:
63      Remove this patholigical case treatment in evolution branch,
64      where it is un-necessary and breaks conservation.
65      Update global_ocean.cs32x15/results accordingly for
66      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
67    o model/src:
68      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
69      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
70    o pkg/obcs:
71      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
72      tendency for temperature and salinity that is then applied to update
73      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
74      horizontal advection and diffusion contributions on the boundary (in
75      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
76      removing the mask in S/R timestep_tracer. The advantage of this approach is
77      that the updated tracer values include contributions from the surface
78      forcing and vertical diffusion.
79      This modification changes exp4.stevens because of vertical diffusion.
80    o model/src:
81      change non-curvilinear grid setting to also work with exch2 + blank tiles:
82      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
83        face dimensions.
84      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
85        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
86        and INI_SPHERICAL_POLAR_GRID.
87      change test-experiment global_ocean.90x40x15:
88      - split the domain in many more tiles (9x4 tiles of 10x10 each);
89      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
90      - update results of both test (std & dwnslp).
91    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
92       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
93    o model/src:
94      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
95        and fix initialisation when using sigma-coords.
96    o model/src:
97     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
98       to their current value at the beginning of forward_step.F": add a new run-time
99       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
100     - set doResetHFactors=T in the following test exp:
101        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
102        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
103        and tutorial_global_oce_in_p (nonLinFS in p)
104    o pkg/ecco
105      - added IES cost term
106    o verification/advect_xz
107      - scale down the depth by 1/100 (from 200 km to just 2.km)
108      - add secondary test using divergent flow, r-star and implicit vertical advection.
109      - add note (check_conserve_TS.txt) and matlab script to check global
110        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
111    o pkg/rbcs:
112      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
113    o pkg/obcs (Stevens BCs):
114      - fix various problems in the phase speed computations of the Stevens
115        boundary conditions:
116        - sign error for western and southern boundaries,
117        - time tendencies were underestimated by factor of dTracerLev and some just
118          zero (for multidim advection schemes) -> now estimate time tendencies
119          from difference between previous (n) time level and the one before (n-1);
120          this requires storing a field per tracer per boundary, also in the pickup
121          files.
122        - replace deltaTmom in cflMer/Zon computation with dTracerLev
123        - set default phase velocity to cflMer/Zon
124      - update verification experiment exp4.stevens
125    o pkg/generic_advdiff (implicit_r):
126      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
127        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
128      - fix implicit vertical diffusion or advection with NonLin FreeSurf
129        (was using current recip_hFacC instead of future recip_hFacC): set future
130        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
131        solver S/R ;
132      - fill diagnostics of vertical advective fluxes (computed from tendency)
133        when using implicit vert. advection;
134      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
135         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
136         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
137         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
138    o pkg/diagnostics:
139      - add diags for T & S tendency which goes through Adams-Bashforth.
140    
141    checkpoint63f (2011/11/30)
142    o pkg/obcs/obcs_calc_stevens.F:
143      - join some loops to reduce number of if-statements
144      - fix a bug in code for northern and southern boundaries.
145    o pkg/seaice/seaice_init_varia.F
146      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
147        caused zero ice-velocities for the B-grid code
148    o pkg/seaice/seaice_init_fixed.F
149      - fix a bug in the initialisation of the second metric terms
150        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
151      - this affects all seaice configurations with useCurviLinearGrid = .true.
152        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
153        = .true. (default)
154      - the only verification experiment affected is global_ocean.cs32x15:
155        icedyn, seaice, and seaice_dynmix (AD)
156    o pkg/thsice/thsice_diagnostics_state.F
157      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
158        not contain garbage that can lead to surprises in diagstats_calc.F
159    o model/src:
160      - move bi,bj loops inside INTEGR_CONTINUITY ;
161      - call INTEGR_CONTINUITY directly from forward_step.F
162        (previously called from momentum_correction_step.F)
163      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
164        forward_step.F and pkg/ecco/the_main_loop.F
165    o model/src/do_oceanic_phys.F:
166      - reset addMass to zero only if useICEFRONT ;
167      - separated k-loop for rhoInSitu calculation ;
168      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
169        and at constant T,S (= WdRHOdP);
170      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
171        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
172        transport of locally-referenced potential density);
173        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
174    o gluemnc:
175      - replace ncrcat with ncks when adding variables to *.glob.nc
176      - change the way variables without record dimensions are handled so that
177        files that have variables with and without record variables can be glued:
178        add a record dimension with a new unique name to be able to differentiate
179        between variable with and without a-prior record dimensions. Remove
180        this record dimension before adding the variable to the *.glob.nc file.
181        This procedure automatically works also for grid.*.nc files that do not
182        have any record dimension.
183    o verification/cpl_aim+ocn:
184      - generate new reference output on baudelaire (gfortran, mpich2) (previously
185        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
186    o pkg/obcs/obcs_calc_stevens.F:
187      - add code for northern and southern boundaries.
188      - reorder some loops to save some operations and so that drFBar can be scalar
189    o model/src:
190      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
191        truncation) and add diagnostics for Adams-Bashforth tendency increment.
192      - update test-exp. AD output:
193        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
194      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
195        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
196        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
197        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
198        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
199        tutorial_plume_on_slope.
200  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
201    that vectorises. This code uses 3 extra 2D fields, F90 array assignments    that vectorises. This code uses 3 extra 2D fields, F90 array assignments
202    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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