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revision 1.1527 by jmc, Sun Nov 6 20:09:10 2011 UTC revision 1.1548 by mlosch, Tue Dec 13 15:22:02 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/obcs: modify Stevens boundary conditions so that S/R obcs_calc_stevens
8      computes tendency for temperature and salinity that is then applied to update
9      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
10      horizontal advection and diffusion contributions on the boundary (in
11      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
12      removing the mask in S/R timestep_tracer. The advantage of this approach is
13      that the updated tracer values include contributions from the surface
14      forcing and vertical diffusion.
15      This modification changes exp4.stevens because of vertical diffusion.
16    o model/src:
17      change non-curvilinear grid setting to also work with exch2 + blank tiles:
18      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
19        face dimensions.
20      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
21        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
22        and INI_SPHERICAL_POLAR_GRID.
23      change test-experiment global_ocean.90x40x15:
24      - split the domain in many more tiles (9x4 tiles of 10x10 each);
25      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
26      - update results of both test (std & dwnslp).
27    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
28       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
29    o model/src:
30      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
31        and fix initialisation when using sigma-coords.
32    o model/src:
33     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
34       to their current value at the beginning of forward_step.F": add a new run-time
35       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
36     - set doResetHFactors=T in the following test exp:
37        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
38        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
39        and tutorial_global_oce_in_p (nonLinFS in p)
40    o pkg/ecco
41      - added IES cost term
42    o verification/advect_xz
43      - scale down the depth by 1/100 (from 200 km to just 2.km)
44      - add secondary test using divergent flow, r-star and implicit vertical advection.
45      - add note (check_conserve_TS.txt) and matlab script to check global
46        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
47    o pkg/rbcs:
48      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
49    o pkg/obcs (Stevens BCs):
50      - fix various problems in the phase speed computations of the Stevens
51        boundary conditions:
52        - sign error for western and southern boundaries,
53        - time tendencies were underestimated by factor of dTracerLev and some just
54          zero (for multidim advection schemes) -> now estimate time tendencies
55          from difference between previous (n) time level and the one before (n-1);
56          this requires storing a field per tracer per boundary, also in the pickup
57          files.
58        - replace deltaTmom in cflMer/Zon computation with dTracerLev
59        - set default phase velocity to cflMer/Zon
60      - update verification experiment exp4.stevens
61    o pkg/generic_advdiff (implicit_r):
62      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
63        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
64      - fix implicit vertical diffusion or advection with NonLin FreeSurf
65        (was using current recip_hFacC instead of future recip_hFacC): set future
66        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
67        solver S/R ;
68      - fill diagnostics of vertical advective fluxes (computed from tendency)
69        when using implicit vert. advection;
70      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
71         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
72         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
73         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
74    o pkg/diagnostics:
75      - add diags for T & S tendency which goes through Adams-Bashforth.
76    
77    checkpoint63f (2011/11/30)
78    o pkg/obcs/obcs_calc_stevens.F:
79      - join some loops to reduce number of if-statements
80      - fix a bug in code for northern and southern boundaries.
81    o pkg/seaice/seaice_init_varia.F
82      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
83        caused zero ice-velocities for the B-grid code
84    o pkg/seaice/seaice_init_fixed.F
85      - fix a bug in the initialisation of the second metric terms
86        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
87      - this affects all seaice configurations with useCurviLinearGrid = .true.
88        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
89        = .true. (default)
90      - the only verification experiment affected is global_ocean.cs32x15:
91        icedyn, seaice, and seaice_dynmix (AD)
92    o pkg/thsice/thsice_diagnostics_state.F
93      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
94        not contain garbage that can lead to surprises in diagstats_calc.F
95    o model/src:
96      - move bi,bj loops inside INTEGR_CONTINUITY ;
97      - call INTEGR_CONTINUITY directly from forward_step.F
98        (previously called from momentum_correction_step.F)
99      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
100        forward_step.F and pkg/ecco/the_main_loop.F
101    o model/src/do_oceanic_phys.F:
102      - reset addMass to zero only if useICEFRONT ;
103      - separated k-loop for rhoInSitu calculation ;
104      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
105        and at constant T,S (= WdRHOdP);
106      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
107        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
108        transport of locally-referenced potential density);
109        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
110    o gluemnc:
111      - replace ncrcat with ncks when adding variables to *.glob.nc
112      - change the way variables without record dimensions are handled so that
113        files that have variables with and without record variables can be glued:
114        add a record dimension with a new unique name to be able to differentiate
115        between variable with and without a-prior record dimensions. Remove
116        this record dimension before adding the variable to the *.glob.nc file.
117        This procedure automatically works also for grid.*.nc files that do not
118        have any record dimension.
119    o verification/cpl_aim+ocn:
120      - generate new reference output on baudelaire (gfortran, mpich2) (previously
121        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
122    o pkg/obcs/obcs_calc_stevens.F:
123      - add code for northern and southern boundaries.
124      - reorder some loops to save some operations and so that drFBar can be scalar
125    o model/src:
126      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
127        truncation) and add diagnostics for Adams-Bashforth tendency increment.
128      - update test-exp. AD output:
129        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
130      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
131        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
132        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
133        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
134        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
135        tutorial_plume_on_slope.
136    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
137      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
138      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
139      does not even come with an F77 compiler anymore, this should not be
140      a limitation
141    
142  checkpoint63e (2011/11/06)  checkpoint63e (2011/11/06)
143  o pkg/seaice adjoint of LSR:  o pkg/seaice adjoint of LSR:
144    - substantially rework STORE dirs.    - substantially rework STORE dirs.

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