The effect of wind shear and curvature on the gravity wave drag produced by a ridge
Teixeira, M. A. C. and Miranda, P. M. A. (2004) The effect of wind shear and curvature on the gravity wave drag produced by a ridge. Journal of the Atmospheric Sciences, 61 (21). pp. 2638-2643. ISSN 1520-0469
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To link to this article DOI: 10.1175/JAS3282.1
The analytical model proposed by Teixeira, Miranda, and Valente is modified to calculate the gravity wave drag exerted by a stratified flow over a 2D mountain ridge. The drag is found to be more strongly affected by the vertical variation of the background velocity than for an axisymmetric mountain. In the hydrostatic approximation, the corrections to the drag due to this effect do not depend on the detailed shape of the ridge as long as this is exactly 2D. Besides the drag, all the perturbed quantities of the flow at the surface, including the pressure, may be calculated analytically.
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