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Vhf Volume-imaging Radar Observation of Aspect-sensitive Scatterers Tilted in Mountain Waves Above a Convective Boundary Layer : Volume 23, Issue 4 (03/06/2005)

By Worthington, R. M.

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Book Id: WPLBN0003984478
Format Type: PDF Article :
File Size: Pages 7
Reproduction Date: 2015

Title: Vhf Volume-imaging Radar Observation of Aspect-sensitive Scatterers Tilted in Mountain Waves Above a Convective Boundary Layer : Volume 23, Issue 4 (03/06/2005)  
Author: Worthington, R. M.
Volume: Vol. 23, Issue 4
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2005
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Worthington, R. M. (2005). Vhf Volume-imaging Radar Observation of Aspect-sensitive Scatterers Tilted in Mountain Waves Above a Convective Boundary Layer : Volume 23, Issue 4 (03/06/2005). Retrieved from http://www.ebooklibrary.org/


Description
Description: Institute of Mathematical and Physical Sciences, University of Wales, Aberystwyth, SY23 3BZ, UK. Thin stable atmospheric layers cause VHF radars to receive increased echo power from near zenith. Layers can be tilted from horizontal, for instance by gravity waves, and the direction of VHF glinting is measurable by spatial domain interferometry or many-beam Doppler beam swinging (DBS). This paper uses the Middle and Upper atmosphere (MU) radar, Shigaraki, Japan as a volume-imaging radar with 64-beam DBS, to show tilting of layers and air flow in mountain waves. Tilt of aspect-sensitive echo power from horizontal is nearly parallel to air flow, as assumed in earlier measurements of mountain-wave alignment. Vertical-wind measurements are self-consistent from different beam zenith angles, despite the combined effects of aspect sensitivity and horizontal-wind gradients.

Summary
VHF volume-imaging radar observation of aspect-sensitive scatterers tilted in mountain waves above a convective boundary layer

 

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