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revision 1.1522 by mlosch, Wed Oct 26 09:30:32 2011 UTC revision 1.1545 by jmc, Thu Dec 8 03:49:58 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 model/src:
8     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.    
9       to their current value at the beginning of forward_step.F": add a new run-time
10       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
11     - set doResetHFactors=T in the following test exp:
12        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
13        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
14        and tutorial_global_oce_in_p (nonLinFS in p)
15    o pkg/ecco
16      - added IES cost term
17    o verification/advect_xz
18      - scale down the depth by 1/100 (from 200 km to just 2.km)
19      - add secondary test using divergent flow, r-star and implicit vertical advection.
20      - add note (check_conserve_TS.txt) and matlab script to check global
21        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
22    o pkg/rbcs:
23      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
24    o pkg/obcs (Stevens BCs):
25      - fix various problems in the phase speed computations of the Stevens
26        boundary conditions:
27        - sign error for western and southern boundaries,
28        - time tendencies were underestimated by factor of dTracerLev and some just
29          zero (for multidim advection schemes) -> now estimate time tendencies
30          from difference between previous (n) time level and the one before (n-1);
31          this requires storing a field per tracer per boundary, also in the pickup
32          files.
33        - replace deltaTmom in cflMer/Zon computation with dTracerLev
34        - set default phase velocity to cflMer/Zon
35      - update verification experiment exp4.stevens
36    o pkg/generic_advdiff (implicit_r):
37      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
38        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
39      - fix implicit vertical diffusion or advection with NonLin FreeSurf
40        (was using current recip_hFacC instead of future recip_hFacC): set future
41        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
42        solver S/R ;
43      - fill diagnostics of vertical advective fluxes (computed from tendency)
44        when using implicit vert. advection;
45      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
46         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
47         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
48         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
49    o pkg/diagnostics:
50      - add diags for T & S tendency which goes through Adams-Bashforth.
51    
52    checkpoint63f (2011/11/30)
53    o pkg/obcs/obcs_calc_stevens.F:
54      - join some loops to reduce number of if-statements
55      - fix a bug in code for northern and southern boundaries.
56    o pkg/seaice/seaice_init_varia.F
57      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
58        caused zero ice-velocities for the B-grid code
59    o pkg/seaice/seaice_init_fixed.F
60      - fix a bug in the initialisation of the second metric terms
61        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
62      - this affects all seaice configurations with useCurviLinearGrid = .true.
63        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
64        = .true. (default)
65      - the only verification experiment affected is global_ocean.cs32x15:
66        icedyn, seaice, and seaice_dynmix (AD)
67    o pkg/thsice/thsice_diagnostics_state.F
68      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
69        not contain garbage that can lead to surprises in diagstats_calc.F
70    o model/src:
71      - move bi,bj loops inside INTEGR_CONTINUITY ;
72      - call INTEGR_CONTINUITY directly from forward_step.F
73        (previously called from momentum_correction_step.F)
74      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
75        forward_step.F and pkg/ecco/the_main_loop.F
76    o model/src/do_oceanic_phys.F:
77      - reset addMass to zero only if useICEFRONT ;
78      - separated k-loop for rhoInSitu calculation ;
79      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
80        and at constant T,S (= WdRHOdP);
81      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
82        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
83        transport of locally-referenced potential density);
84        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
85    o gluemnc:
86      - replace ncrcat with ncks when adding variables to *.glob.nc
87      - change the way variables without record dimensions are handled so that
88        files that have variables with and without record variables can be glued:
89        add a record dimension with a new unique name to be able to differentiate
90        between variable with and without a-prior record dimensions. Remove
91        this record dimension before adding the variable to the *.glob.nc file.
92        This procedure automatically works also for grid.*.nc files that do not
93        have any record dimension.
94    o verification/cpl_aim+ocn:
95      - generate new reference output on baudelaire (gfortran, mpich2) (previously
96        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
97    o pkg/obcs/obcs_calc_stevens.F:
98      - add code for northern and southern boundaries.
99      - reorder some loops to save some operations and so that drFBar can be scalar
100    o model/src:
101      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
102        truncation) and add diagnostics for Adams-Bashforth tendency increment.
103      - update test-exp. AD output:
104        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
105      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
106        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
107        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
108        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
109        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
110        tutorial_plume_on_slope.
111    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
112      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
113      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
114      does not even come with an F77 compiler anymore, this should not be
115      a limitation
116    
117    checkpoint63e (2011/11/06)
118    o pkg/seaice adjoint of LSR:
119      - substantially rework STORE dirs.
120      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
121        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
122        and only perform SOLV_MAX_FIXED adjoint iters.
123        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
124        always goes to same record, meaning that the last forward field will be
125        the one used in the adjoint - an approximation.
126      - now produces non-zero LSR-related gradients, and acceptable gradients for
127        An's zonal (x-z) test case (to be checked in)
128      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
129        (but these are screwed up by the thermodynamics in the first place);
130        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
131        output_adm.txt also reflects changes to seaice_lsr
132      - global_ocean.cs32x15:
133        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
134          (output_adm.seaice.txt was updated)
135        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
136          (output_adm.seaice_dynmix.txt)
137    o test-exp. exp4+stevens:
138      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
139    o pkg/seaice (lsr solver):
140      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
141        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
142      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
143      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
144        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
145      - compute (with new S/R) and print initial (+ free-driff sol. if available)
146        and final residual of linearised system.
147  o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity  o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
148    (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)    (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
149  o pkg/obcs: Stevens BCs (still only for east and west)  o pkg/obcs: Stevens BCs (still only for east and west)
150    - fix Stevens BCs by using intermediate velocities of previous    - fix Stevens BCs by using intermediate velocities of previous
151      time step as "baroclinic" contribution rather velocity of one grid cell      time step as "baroclinic" contribution rather velocity of one grid cell
152      inside the boundaries; more consistent but makes the entire treatment      inside the boundaries; more consistent but makes the entire treatment
153      more complicated, requires new pickup files and two new S/Rs:      more complicated, requires new pickup files and two new S/Rs:
154      obcs_copy_uv_n and obcs_save_uv_n      obcs_copy_uv_n and obcs_save_uv_n
155      keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY      keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
156      (undefined by default)      (undefined by default)
157    - silently move computation of some grid factors into separate loops to    - silently move computation of some grid factors into separate loops to
158      save some recomputations      save some recomputations
159    - add a hack for non-linear free surface    - add a hack for non-linear free surface
160    - add a verification experiment to exp4 that tests this code    - add a verification experiment to exp4 that tests this code

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