Boundary Conditions for Fine-Mesh Limited-Area Forecasts
Open Access
- 1 June 1970
- journal article
- Published by American Meteorological Society in Journal of Applied Meteorology
- Vol. 9 (3) , 345-349
- https://doi.org/10.1175/1520-0450(1970)009<0345:bcffml>2.0.co;2
Abstract
A fine-mesh, limited-area, nondivergent barotropic forecast is initialized with fine-scale wind data with time-variant lateral boundary conditions derived from a large-scale, coarse-mesh forecast. Undesirable instabilities develop in the vicinity of the outflow boundaries of the fine-mesh region. A numerical technique which eliminates these instabilities is presented and tested.Keywords
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