Study on the Variational Assimilation Technique for the Retrieval of Wind Fields from Doppler Radar Data

被引：6

作者：

万齐林 ^{[1
]}

薛纪善 ^{[2
]}

庄世宇 ^{[2
]}

机构：

[1] Institute of Tropical and Marine Meteorology

[2] Chinese Academy of Meteorological Sciences

来源：

Acta Meteorologica Sinica | 2006年 / 01期

关键词：

variational assimilation technique; wind fields; Doppler radar data;

D O I：

暂无

中图分类号：

P412.25 [雷达探测];

学科分类号：

0706 ; 070601 ;

摘要：

This paper introduces a variational assimilation technique for the retrieval of wind fields from Doppler radar data. The assimilated information included both the radial velocity (RV) and the movement of radar echo. In this assimilation technique, the key is transforming the movement of radar echo to a new radar measuring variable- "apparent velocity" (AV). Thus, the information of wind is added, and the indeterminacy of recovering two-dimensional wind only by AV was overcome effectively by combining RV with AV. By means of CMA GRAPES-3Dvar and CINRAD data, some experiments were performed. The results show that the method of retrieval of wind fields is useful in obtaining the construction of the weather system.

引用

页码：1 / 19

页数：19