WIND-FIELD RETRIEVAL THROUGH SINGLE DOPPLER WEATHER RADAR AND ITS APPLICATION TO NWP

Ma Qingyun; Li Zechun; Tao Shiwei

Vol.12, NO.4, 2001

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Article Navigation > Journal of Applied Meteorological Science > 2001 > 12(4): 488-493

Ma Qingyun, Li Zechun, Tao Shiwei. Wind-field retrieval through single Doppler weather radar and its application to NWP. J Appl Meteor Sci, 2001, 12(4): 488-493.

Citation:

Ma Qingyun, Li Zechun, Tao Shiwei. Wind-field retrieval through single Doppler weather radar and its application to NWP. J Appl Meteor Sci, 2001, 12(4): 488-493.

Ma Qingyun, Li Zechun, Tao Shiwei. Wind-field retrieval through single Doppler weather radar and its application to NWP. J Appl Meteor Sci, 2001, 12(4): 488-493.

Citation:

Ma Qingyun, Li Zechun, Tao Shiwei. Wind-field retrieval through single Doppler weather radar and its application to NWP. J Appl Meteor Sci, 2001, 12(4): 488-493.

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WIND-FIELD RETRIEVAL THROUGH SINGLE DOPPLER WEATHER RADAR AND ITS APPLICATION TO NWP

National Meteorological Center, Beijing 100081

Received Date: 2000-06-19
Rev Recd Date: 2000-07-19
Publish Date: 2001-11-30

Abstract

Abstract

The local VAD method is used for the wind retrieval from radical wind measured by Doppler radar (data from CAMS, at 12:00UTC, 5 July 1998) into horizontal wind and an experiment is made on the impact of horizontal wind on numerical weather prediction assimilation system for the heavy rain occurred from afternoon to night of 5 July 1998 in the Beijing area.The result shows that the retrieved wind is primarily consistent with the weather process and it can be used in the analysis and prediction of mesoscale systems with smaller temporal and spatial scales.
- Doppler radar;
- Wind field retrieval;
- Numerical weather prediction

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References(9)

Figures and Tables

图 1 多普勒雷达径向风矢量图

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图 2 多普勒雷达反演水平风 (细矢量) 和探空测风 (粗矢量) 图

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图 3 1998年7月5日12:00UTC地面风场 (流场)

(粗实线:东风切变线细实线:流线)^[10]

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图 4 1998年7月5日12:00UTC试验方案同化场的海平面气压与控制方案同化场海平面气压之差

(实线为正, 虚线为负)

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图 5 以1998年7月5日12:00UTC为初始时刻的3 h和6 h降水量预报

(a)、(b) 分别为控制方案的3 h和6 h降水预报, (c)、(d) 分别为试验方案的3 h和6 h降水预报

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References

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[2]	Waldeufel P, Corbin H. On the analysis of a single-Doppler radar data. J. Appl. Meteor., 1979, 18: 532~542. doi: 10.1175/1520-0450(1979)018<0532:OTAOSD>2.0.CO;2
[3]	石原正仁.日本海沿岸中尺度降雪云带的构造和扰动.研究时报 (日文), 1995, 47 (1): 8~12.
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[7]	朱宗申, 马清云, 张跃堂, 等. 有限区σ面客观分析方案. 见: 85-906-03课题组编. 台风、暴雨业务数值预报方法和技术研究. 北京: 气象出版社, 1996.
[8]	Grell G A, Jing Dudhia, Stauffer A R. A description of the fifth-generation Penn State/NCAR mesoscale model (MM5). NCAR/TN-398+STR NCAR Technical note. 1994.
[9]	国家气象中心. '98中国大洪水与天气预报. 北京: 气象出版社, 1999. 202~214.