摘要
基于组网雷达的组网产品组合反射率因子(CR)与回波顶高(ET)资料分析2008年第14号台风"黑格比"登陆期间的结构特征,并比较了CR与ET特征的异同,分析了造成异同的原因。分析结果显示:在登陆过程中,眼区逐渐被填塞,核心区内的对流活动有所增强,之后迅速减弱;各距离圈上的平均CR与平均ET随距"黑格比"中心的距离呈单峰分布的特点,但平均CR与平均ET的单峰分布并不是一一对应,前者峰值较后者更靠近台风眼中心。
The structure characteristics during the landing of Typhoon Hagupit occurred in 2008 are analyzed based on the composite reflectivity （CR） and echo top （ET） data from the products of threedimensional mosaic system （CINRAD Mosaic）. The characteristics of CR and ET are discussed, and the possible causes of differences between the two network products are pointed out. The results show that the convective activities in the core area of Typhoon Hagupit declined rapidly after short enhancing when its eye areas became filled from convection during the landing period. The curves of CR and ET along with the distance away from the center of Typhoon Hagupit exhibits a single-peak distribution, but the former is closer to the typhoon center, with an average peak distance of 64 km and 76 km, respectively.
出处
《气象科技》
2012年第3期445-449,共5页
Meteorological Science and Technology
基金
气象行业专项"热带西太平洋观测试验与我国高影响天气可预报性研究"(GYHY200706020)
中国气象局气象新技术推广项目(CMATG2010Z02)资助
关键词
组网雷达资料
台风“黑格比”
结构特征
CINRAD mosaic product, Typhoon Hagupit, structural characteristic
