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Original Research Papers

Wave and form drag: their relation in the linear gravity wave regime

Author:

Maria Athanassiadou

Met Office, London Road, Bracknell, Berkshire RG12 2SZ, GB
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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.

How to Cite: Athanassiadou, M., 2003. Wave and form drag: their relation in the linear gravity wave regime. Tellus A: Dynamic Meteorology and Oceanography, 55(2), pp.173–180. DOI: http://doi.org/10.3402/tellusa.v55i2.12090
  Published on 01 Jan 2003
 Accepted on 21 Nov 2002            Submitted on 7 Jan 2002

References

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