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revision 1.612 by mlosch, Wed Feb 15 09:25:25 2006 UTC revision 1.632 by mlosch, Wed Mar 15 19:52:16 2006 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o seaice:
8      - modify advection so that it works also on the C-grid
9      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
10        problem in multi-tile runs with C-grid
11      - remove velocity clipping from seaice_dynsolver with C-grid
12      - fix drag (ocean on ice) formulation and a bug that caused noise in the
13        C-grid solver
14      - added a few comments to seaice_diffusion.F
15      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
16        are now exclusive)
17      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
18        required re-ordering the code a little:
19       + make DAIRN global variable (defined in SEAICE)
20       + move computation of the viscosities eta and zeta into a new separate
21         routine (because I need to recompute them in seaice_ocean_stress.F)
22    
23    checkpoint58b_post
24    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
25      update output.txt of exp. aim.5l_cs.thSI
26    o various mnc cleanups and improvements:
27      + shrink lookup tables by factor of ~4
28      + better error reporting when running out of lookup space
29      + able to handle longer path/file names (up to 500 chars)
30    o adjoint:
31      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
32      - TBD: "hidden" mom_vecinv recomp. in dynamics
33    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
34     (allow to differentiate between forcing components using new integer flags:
35      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
36     and add new flag to put Dissipation tendency out of Adams-Bashforth.
37    o ecco
38      - enable trend removal from SSH anomaly obs.
39    o adjoint
40      - a fix for PmEpR when #undef EXACT_CONSERV
41      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
42      - try to fix "hidden" recomp. in forward_step for NLFS
43        (NLFS seems broken sometimes after I checked it in)
44    o seaice:
45     - add c-grid version of the dynamic solver:
46       + three new routines that are the c-grid substitute lsr, dynsolver
47         and ostres
48       + put a few fields that were local to dynsolver into global common
49         blocks, so that I can move the computation of stresses etc into
50         seaice_lsr (saves coding but may break the adjoint).
51     - replace more hardwired parameters by runtime parameters
52     - add ice masks that mask the rhs of the implicit solvers where there
53       is no ice (commented out in seaice_dynsolver, because i am not sure
54       if this works properly), eventually this should replace the clipping
55       of ice velocities in seaice_dynsolver to +/-40cm/s.
56    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
57      include it only where its needed
58    o move balancing of fluxes before the call of external_forcing_surf
59    o seaice:
60      - correct units of turning angles (now they are really in degrees)
61      - move computation of GWATX/Y out of main routine into dynsolver
62      - initialize GWATX/Y in seaice_init
63    o Apply mask on Fresh-Water flux (needed for SSH forcing).
64      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
65    o seaice: add runtime flags for turning angles (default to zero)
66    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
67      and trend from exf forcing and ctrl control adjustments
68    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
69      (since checkpoint57x_post)
70    o change the default rotation period to 86164.s = the Earth rotation
71    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
72      and based on a reference stratification. Tested within hs94.cs-32x32x5.
73    o seaice advection: add code for choosing between the default (2nd order
74      central differences) and multiDim advection schemes provided by
75      pkg/generic_advdiff
76  o seaice:  o seaice:
77    - removed all references to SEAICE_GRID.h fields from    - removed all references to SEAICE_GRID.h fields from
78      dynsolver, advect, diffus, lsr, without changing the results of lab_sea      dynsolver, advect, diffus, lsr, without changing the results of lab_sea
79      (cubed-sphere configuration will change a little)      (cubed-sphere configuration will change a little)
80    - grid computations in seaice_init are obsolete now.    - grid computations in seaice_init are obsolete now.
81    - cleaned up code a little so that is easier to read (hopefully).    - cleaned up code a little so that is easier to read (hopefully).
82    - added new (better?) discretizations of advection and diffusion    - added new (better?) discretizations of default advection and diffusion
83      (still commented out)      (turn on with SEAICEuseFluxForm)
84      - replace 1 in 3d global fields by kSurface in growth.F
85        
86  checkpoint58a_post  checkpoint58a_post
87  o seaice:  o seaice:
88    - bug fix in advect.F    - bug fix in advect.F
   - replace 1 in 3d global fields by kSurface in growth.F  
89  o shelfice:  o shelfice:
90    - separate shelfice load anomaly from pload (breaks with time    - separate shelfice load anomaly from pload (breaks with time
91      dependent forcing), => introduce constant field shelficeLoadAnomaly.      dependent forcing), => introduce constant field shelficeLoadAnomaly.

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