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Preliminary Analysis on the Wind Retrieval Method in Nowcasting

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Abstract:

Extrapolation nowcasting of radar echoes is implemented based on reflectivity data and radial velocity data of Doppler weather radars. VAD algorithm is used to retrieve wind fields, which are used as motion vectors to implement the extrapolation for the reflectivity data within 60 mins. Extrapolation nowcasting results of a weather case by the method agree well with the fact according to radar echo images and statistics. However, nowcasting accuracy decreases as the extrapolation time increases.

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Periodical:

Applied Mechanics and Materials (Volumes 519-520)

Pages:

1287-1291

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.519-520.1287

Citation:

Cite this paper

Online since:

February 2014

Authors:

Nan Li*, Xiyu Mu, Luan Li, Nanqing Shao

Keywords:

Doppler Radar, Extrapolation, Nowcasting, Velocity Azimuth Display, Wind Retrieval

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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