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revision 1.1521 by mlosch, Tue Oct 25 15:24:54 2011 UTC revision 1.1539 by jmc, Wed Nov 30 15:43:29 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint63f (2011/11/30)
8    o pkg/obcs/obcs_calc_stevens.F:
9      - join some loops to reduce number of if-statements
10      - fix a bug in code for northern and southern boundaries.
11    o pkg/seaice/seaice_init_varia.F
12      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
13        caused zero ice-velocities for the B-grid code
14    o pkg/seaice/seaice_init_fixed.F
15      - fix a bug in the initialisation of the second metric terms
16        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
17      - this affects all seaice configurations with useCurviLinearGrid = .true.
18        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
19        = .true. (default)
20      - the only verification experiment affected is global_ocean.cs32x15:
21        icedyn, seaice, and seaice_dynmix (AD)
22    o pkg/thsice/thsice_diagnostics_state.F
23      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
24        not contain garbage that can lead to surprises in diagstats_calc.F
25    o model/src:
26      - move bi,bj loops inside INTEGR_CONTINUITY ;
27      - call INTEGR_CONTINUITY directly from forward_step.F
28        (previously called from momentum_correction_step.F)
29      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
30        forward_step.F and pkg/ecco/the_main_loop.F
31    o model/src/do_oceanic_phys.F:
32      - reset addMass to zero only if useICEFRONT ;
33      - separated k-loop for rhoInSitu calculation ;
34      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
35        and at constant T,S (= WdRHOdP);
36      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
37        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
38        transport of locally-referenced potential density);
39        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
40    o gluemnc:
41      - replace ncrcat with ncks when adding variables to *.glob.nc
42      - change the way variables without record dimensions are handled so that
43        files that have variables with and without record variables can be glued:
44        add a record dimension with a new unique name to be able to differentiate
45        between variable with and without a-prior record dimensions. Remove
46        this record dimension before adding the variable to the *.glob.nc file.
47        This procedure automatically works also for grid.*.nc files that do not
48        have any record dimension.
49    o verification/cpl_aim+ocn:
50      - generate new reference output on baudelaire (gfortran, mpich2) (previously
51        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
52    o pkg/obcs/obcs_calc_stevens.F:
53      - add code for northern and southern boundaries.
54      - reorder some loops to save some operations and so that drFBar can be scalar
55    o model/src:
56      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
57        truncation) and add diagnostics for Adams-Bashforth tendency increment.
58      - update test-exp. AD output:
59        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
60      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
61        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
62        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
63        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
64        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
65        tutorial_plume_on_slope.
66    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
67      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
68      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
69      does not even come with an F77 compiler anymore, this should not be
70      a limitation
71    
72    checkpoint63e (2011/11/06)
73    o pkg/seaice adjoint of LSR:
74      - substantially rework STORE dirs.
75      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
76        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
77        and only perform SOLV_MAX_FIXED adjoint iters.
78        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
79        always goes to same record, meaning that the last forward field will be
80        the one used in the adjoint - an approximation.
81      - now produces non-zero LSR-related gradients, and acceptable gradients for
82        An's zonal (x-z) test case (to be checked in)
83      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
84        (but these are screwed up by the thermodynamics in the first place);
85        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
86        output_adm.txt also reflects changes to seaice_lsr
87      - global_ocean.cs32x15:
88        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
89          (output_adm.seaice.txt was updated)
90        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
91          (output_adm.seaice_dynmix.txt)
92    o test-exp. exp4+stevens:
93      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
94    o pkg/seaice (lsr solver):
95      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
96        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
97      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
98      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
99        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
100      - compute (with new S/R) and print initial (+ free-driff sol. if available)
101        and final residual of linearised system.
102    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
103      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
104  o pkg/obcs: Stevens BCs (still only for east and west)  o pkg/obcs: Stevens BCs (still only for east and west)
105    - fix Stevens BCs by using intermediate velocities of previous    - fix Stevens BCs by using intermediate velocities of previous
106      time step as "baroclinic" contribution rather velocity of one grid cell      time step as "baroclinic" contribution rather velocity of one grid cell
107      inside the boundaries; more consistent but makes the entire treatment      inside the boundaries; more consistent but makes the entire treatment
108      more complicated, requires new pickup files and two new S/Rs:      more complicated, requires new pickup files and two new S/Rs:
109      obcs_copy_uv_n and obcs_save_uv_n      obcs_copy_uv_n and obcs_save_uv_n
110      keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY      keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
111      (undefined by default)      (undefined by default)
112    - silently move computation of some grid factors into separate loops to    - silently move computation of some grid factors into separate loops to
113      save some recomputations      save some recomputations
114    - add a hack for non-linear free surface    - add a hack for non-linear free surface
115    - add a verification experiment to exp4 that tests this code    - add a verification experiment to exp4 that tests this code

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