大气科学2011，Vol.35Issue(1)：134-146,13.
基于雷达和自动站资料研究风暴演变规律
A Study of the Evolution Regularity of Storm Based on the Data of Radar and Automatic Station
摘要
Abstract
In order to study the effect of surface mesoscale convergence on the development of convective echoes, the authors analyze statistically the relationship of convergence field, rainfall, and radar echoes in the selected ten convective weather processes in Ningbo region by use of radar and surface automatic station data after quality control.And the role of surface mesoscale wind convergence in the storm development is revealed by use of the Shuman-Shapiro filter. At last, the storm is extrapolated with the cross-correlation method based on the statistics of relationship between the development of echoes and the surface convergence. The results indicate that: The surface mesoscale convergence in front of the radar echoes plays an important role in the echo occurrence and development, particularly the area where there exists surface mesoscale convergence line is more propitious to monomer newborn and development, at the same time it also has a great influence on the future direction and shape of the major echo. After scale separating by use of the Shuman-Shapiro filter it can be found in the front of and between the stomas, the wind field interacts obviously with each other, as the transmission and media it plays an important role in the storm development. Finally, after extrapolating the storm based on the ground convergence field with the cross-correlation method, the shape and center of the echo have a very good correspondence between the extrapolation echoes filed and the fact echoes filed.关键词
强对流天气/地面辐合/匹配统计/Shuman-Shapiro滤波/风暴外推Key words
convective weather； surface convergence/ matching statistic, Shuman-Shapiro filter/storm extrapolation分类
天文与地球科学引用本文复制引用
徐亚钦,翟国庆,黄旋旋,朱佩君,何斌,沈杭锋..基于雷达和自动站资料研究风暴演变规律[J].大气科学,2011,35(1):134-146,13.基金项目
国家自然科学基金资助项目 40975021,国家天气灾害实验室重点项目2008LASW-A03,国家海洋环境预报中心的近海海区雷达资料同化技术研究项目H2081938 （）
