Analysis and Simulations of a Troposphere–Stratosphere Gravity Wave Model. Part I

M. G. Wurtele Department of Atmospheric Sciences, University of California at Los Angeles, CA 90024

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R. D. Sharman Department of Atmospheric Sciences, University of California at Los Angeles, CA 90024

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T. L. Keller Department of Atmospheric Sciences, University of California at Los Angeles, CA 90024

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Abstract

An analytical model is presented that accommodates nonhydrostatic shearing stratified flow over an obstacle, and that can be modified to include a superposed stratosphere with constant wind and higher stability. A simulation code is used in parallel with the analytic calculations to demonstrate a methodology for determining the wavelength and magnitude of gravity wave energy reflected, and that transmitted, by the tropopause.

Abstract

An analytical model is presented that accommodates nonhydrostatic shearing stratified flow over an obstacle, and that can be modified to include a superposed stratosphere with constant wind and higher stability. A simulation code is used in parallel with the analytic calculations to demonstrate a methodology for determining the wavelength and magnitude of gravity wave energy reflected, and that transmitted, by the tropopause.

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