THE PRE-PROCESSING OF DOPPLER RADAR WIND RETRIEVAL VAP TECHNIQUE

Bai Jie; Tao Zuyu

Vol.11, NO.1, 2000

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2000 > 11(1): 21-26

Bai Jie, Tao Zuyu. The pre-processing of doppler radar wind retrieval VAP technique. J Appl Meteor Sci, 2000, 11(1): 21-26.

Citation:

Bai Jie, Tao Zuyu. The pre-processing of doppler radar wind retrieval VAP technique. J Appl Meteor Sci, 2000, 11(1): 21-26.

Bai Jie, Tao Zuyu. The pre-processing of doppler radar wind retrieval VAP technique. J Appl Meteor Sci, 2000, 11(1): 21-26.

Citation:

Bai Jie, Tao Zuyu. The pre-processing of doppler radar wind retrieval VAP technique. J Appl Meteor Sci, 2000, 11(1): 21-26.

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THE PRE-PROCESSING OF DOPPLER RADAR WIND RETRIEVAL VAP TECHNIQUE

Bai Jie¹,
Tao Zuyu²

1.
Air Force Research Institute of Meteorology, Beijing 100085
2.
Department of Geophysics, Peking University, Beijing 100871

Received Date: 1998-09-28
Rev Recd Date: 1999-01-12
Publish Date: 2000-02-29

Abstract

Abstract

Based on the analysis of three kinds of wind retrieval techniques with Doppler radar, Velocity Azimuth Processing (VAP) technique is considered to be used in operation in the near future, and the key of which is whether the wind field information on meso-β scale and larger scale is filtered out from initial data, in order to eliminate the influences of the wind field information smaller than meso-V scale on retrieval results. Therefore, the pre-processing of data is made using 2-D low pass filter method. In addition, the wind velocity computational formula of VAP method is improved.
- Doppler radar;
- Wind retrieval;
- Filtering

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References(12)

Figures and Tables

图 1 在一个距离圈上原始的多普勒速度随方位角分布的廓线

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图 2 经二维滤波后的多普勒速度方位角廓线

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图 3 1997年7月19日16:00的反演风场

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表 1 反演风向和风速随△θ的变化

References

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