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A doppler sodar case study of top-down convection and convective dissipation of stratus

von Hünerbein, S and Richner, H 2002, 'A doppler sodar case study of top-down convection and convective dissipation of stratus' , Journal of Atmospheric and Oceanic Technology, 19 (8) , pp. 1170-1180.

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Abstract

Stratus dissipation over the Swiss Plateau has long been a forecasting problem. A case study of stratus structure and development was conducted during the winter of 1997/98. Measurements were performed with the monostatic Doppler sodar of the Swiss Federal Institute of Technology, Zürich, to supplement conventional observation methods. A pyranometer, a second sodar, and a sonic anemometer were also intermittently available. Sodar echo patterns and vertical velocity data have been investigated with respect to the inversion height, especially during stratus dissipation. Typical cloud-dissipating processes, such as convection, top-down convection, and advection have been discerned. The results show that sodar measurements can supplement other observation methods in a useful way, especially when the data analysis of echo patterns and high-resolution vertical velocities are combined.

Item Type: Article
Themes: Subjects / Themes > Q Science > QC Physics > QC851-999 Meteorology - Climatology
Subjects / Themes > Q Science > QC Physics > QC221-246 Acoustics - Sound
Subjects outside of the University Themes
Schools: Colleges and Schools > College of Science & Technology > School of the Built Environment
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Acoustics Research Centre
Journal or Publication Title: Journal of Atmospheric and Oceanic Technology
Publisher: American Meteorological Society
Refereed: Yes
ISSN: 1520-0426
Depositing User: H Kenna
Date Deposited: 19 Sep 2007 11:52
Last Modified: 20 Aug 2013 16:48
URI: http://usir.salford.ac.uk/id/eprint/476

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