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revision 1.539 by heimbach, Thu Sep 1 06:08:55 2005 UTC revision 1.567 by mlosch, Tue Oct 11 08:36:29 2005 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o fix behavior of ptracers_monitor when monitor output is written to a
8      netcdf-file; still not independent of monitor.F (writes in the same
9      file).
10    o change default value of tRef (put a uniform, meaningful value for ocean
11      & atmos) and initialize sRef (was missing, as Martin mentioned).
12    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
13      to be proportional to enstrophy dissipation length.  Thus,
14       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
15      This is now consistent with Smagorinsky and with the manual.
16    
17    checkpoint57u_post
18    o OBCS and PTRACERS: add open boundary support for passive tracers
19      - either use homogenous (pseudo) v.Neumann conditions or prescribe
20        OB-values from file; this is not different from the way theta and salinity
21        are treated
22      - however, Orlanski-radiation conditions are not supported, and the model
23        will stop if you use pTracers and Orlanski at the same time.
24      - beefed up the rountine obcs_external_fields_load: now only those open
25        boundary values are overwritten with values from files for which there
26        are really files, otherwise the OB-fields remain untouched. This makes
27        it possible to use different OBs at different ends of the domain (as
28        with EXF)
29    o reduce number of exch calls in shap_filt (s2).
30    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
31      truncation level) 4/5 MLAdjust test results (11&12 digits match).
32    
33    checkpoint57t_post
34    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
35    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
36      same truncation, independent of the face number: affects affects several
37      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
38    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
39      note that biharmonic viscosity + no-slip was not tested in any experiment.
40    o fix bug in non-linear free-surf side-drag ; generate new output for
41      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
42    o make mnc honor the writeBinaryPrec flag for most kinds of output
43    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
44    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
45      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
46    o add brackets in multi-terms sum to get same truncation, independent of
47      the face number (manage to get exactly same value of gU,gV at the cs-edge)
48      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
49    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
50      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
51      a maximum grid-scale Reynolds number.  Also, changes all length calculations
52      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
53      Suggested values of viscosity parameters found in mom_calc_visc.
54      Many new viscosity diagnostics available.
55    
56    checkpoint57s_post
57    o Add clearing-house for viscosity calculations, mom_calc_visc and
58      correct numerous bugs in LeithD and Smagorinsky discretizations.  
59      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
60      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
61      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
62      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
63      The Strain-Tension form is now called with useStrainTensonVisc=.true.
64      ViscAhStrain and viscAhTension are now retired.
65    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
66    o In response to JMC's bug report, genmake2 now ignores any soft-links
67      that it finds in the *current* directory when searching for files.
68      Soft-links found in any other source directories will still work as
69      they did before.
70    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
71      a C routine to unlimit the stack size
72    o mnc-ify pkg/aim snapshot vars
73    o mnc-ify pkg/land as requested by Daniel
74    o various changes to mnc including:
75      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
76      - output can now be grouped so that all files within a group
77          change the ITER portion of their names in lock-step together
78      - can now read ("global") PER-FACE (in addition to PER-TILE) files
79          and works with both EXCH1 and EXCH2 (but needs more testing)
80      - writing works for all verification test cases w/ g77 on Linux
81    
82    checkpoint57r_post
83    o make MNC variable initialization happen earlier
84    o add diagnostics for (almost) each term of the momentum Eq.
85  o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.  o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
86  o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)  o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
87  o remove MINIMAL_TAVE_OUTPUT option ;  o remove MINIMAL_TAVE_OUTPUT option ;

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