Articles | Volume 24, issue 11
https://doi.org/10.5194/angeo-24-2891-2006
https://doi.org/10.5194/angeo-24-2891-2006
21 Nov 2006
 | 21 Nov 2006

Diurnal variation of mountain waves

R. M. Worthington

Abstract. Mountain waves could be modified as the boundary layer varies between stable and convective. However case studies show mountain waves day and night, and above e.g. convective rolls with precipitation lines over mountains. VHF radar measurements of vertical wind (1990–2006) confirm a seasonal variation of mountain-wave amplitude, yet there is little diurnal variation of amplitude. Mountain-wave azimuth shows possible diurnal variation compared to wind rotation across the boundary layer.

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