Wave and form drag: their relation in the linear gravity wave regime
Abstract
The linear, asymptotic work of Belcher and Wood (Belcher, S. E. and Wood, N., 1996. Q. J. R. Meteorol. Soc. 122, 863—902), for the surface pressure drag over orography of small amplitude, is revised and expanded. A new equation is obtained that incorporates the pressure drag due to gravity waves (wave drag) and pressure drag due to turbulence (form drag) and shows how these mechanisms operate together. In its general form, the equation is in the Fourier space and can be solved numerically for any orography. An analytical example is given for sinusoidal orography.
DOI: https://doi.org/10.3402/tellusa.v55i2.12090 | Journal eISSN: 3035-9554
Language: English
Page range: 173 - 180
Submitted on: Jan 7, 2002
Accepted on: Nov 21, 2002
Published on: Jan 1, 2003
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services
© 2003 Maria Athanassiadou, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.