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- Title
Geostrophic Adjustment for Reversibly Staggered Grids.
- Authors
McGregor, John L.
- Abstract
A technique is presented for meteorological modeling in which all variables are held on an unstaggered grid, but the winds are transformed to a staggered C grid for the gravity wave calculations. An important feature is the use of a new reversible interpolation procedure for the staggering–unstaggering of the winds. This reversible procedure has excellent dispersion properties for geostrophic adjustment of the linearized shallow-water equations, being generally superior to those of the A, B, and C grids. Its dispersion behavior is generally similar to that of the unstaggered Z grid of Randall, which carries divergence and vorticity as primary variables. The scheme has fewer computational overheads than the Z grid.
- Subjects
GEOSTROPHIC wind; WINDS aloft; STRATOSPHERIC winds; STRATOSPHERIC circulation; ATMOSPHERIC circulation; METEOROLOGY
- Publication
Monthly Weather Review, 2005, Vol 133, Issue 5, p1119
- ISSN
0027-0644
- Publication type
Article
- DOI
10.1175/MWR2908.1