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Proceedings Paper

Dynamic effects of steep orography on cold front propagation in a stratified atmosphere
Author(s): M. S. Yudin
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Paper Abstract

The present study is an extension of [3].It deals with calculation and comparison of velocities of gravitational currents over steep terrain in a stratified atmosphere. The propagation of a cold atmospheric front over orographic obstacles of various shapes is simulated with a 2D small-scale meteorological finite-element model. The front surface is explicitly described by a special equation. A time filter is used to suppress the non-physical oscillations. The effects of flow retardation and near surface blocking under steep orography are estimated. The upwind and downwind velocities calculated for typical values of the orography and stratification parameters are presented.

Paper Details

Date Published: 19 November 2015
PDF: 7 pages
Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 96805M (19 November 2015); doi: 10.1117/12.2205225
Show Author Affiliations
M. S. Yudin, Institute of Computational Mathematics and Mathematical Geophysics SB (Russian Federation)

Published in SPIE Proceedings Vol. 9680:
21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii, Editor(s)

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