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A systematic algorithm for obtaining SODAR wind profiles

Bradley, SG and Von Hunerbein, S 2004, 'A systematic algorithm for obtaining SODAR wind profiles' , Meteorology and Atmospheric Physics, 85 (1-3) , pp. 77-84.

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Abstract

Current methods of obtaining wind profiles from SODARs generally employ ad hoc strategies for Doppler spectrum peak selection, profile smoothing, and consistency checks. This paper addresses the problem of systematically obtaining vertical profiles of wind vectors from a SODAR. A new approach is to regard every spectrum frequency as a possible estimator of the radial wind component, but to weight these Doppler estimates according to the spectral power at each frequency. This allows the peak detection, smoothing, and assimilation of a priori information to be combined into a constrained linear inversion methodology. The inversion process also allows an estimation of signal to noise ratio, degrees of freedom, and information content versus height. Examples are given of profiles obtained using this new inverse method. The relationship to the physical limitations of the SODAR instrument and the atmosphere is discussed.

Item Type: Article
Themes: Subjects / Themes > Q Science > QC Physics > QC221-246 Acoustics - Sound
Subjects / Themes > Q Science > QC Physics > QC851-999 Meteorology - Climatology
Subjects outside of the University Themes
Schools: Colleges and Schools > College of Science & Technology
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Acoustics Research Centre
Journal or Publication Title: Meteorology and Atmospheric Physics
Publisher: Springer Verlag
Refereed: Yes
ISSN: 0177-7971
Depositing User: SUM Von-Hunerbein
Date Deposited: 19 Aug 2010 13:32
Last Modified: 20 Aug 2013 17:20
URI: http://usir.salford.ac.uk/id/eprint/9589

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