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Position: Home > Articles > Analysis of Satellite and Radar Data of Regional Hail Modern Agricultural Science and Technology 2015 (23) 237-239+242

一次区域性冰雹过程的卫星雷达资料分析

作  者：
周成;陈华凯;杨学斌;张优琴
单  位：
山东省德州市气象局
关键词：
卫星资料;雷达数据;中尺度气旋;区域冰雹
摘  要：
近年来卫星资料的应用程度大幅度增加,利用FY-2号卫星红外云图,结合常规观测资料、多普勒雷达资料对2014年7月14日德州市一次区域性冰雹天气的天气形势、物理量诊断、雷达回波演变、卫星云图以及相关数据的演变特征进行综合分析。结果表明:在亚欧大陆两槽一脊的大环流背景下,东北大槽后部不断有冷空气分裂南下形成低槽,高层西北气流和低层西南暖湿气流形成上冷下暖的对流不稳定层结为强对流以及冰雹的发生提供了有利条件;午后850 h Pa倒槽风切变发展北上触发了这次强对流天气;通过卫星红外云图、雷达资料分析得出云顶亮温、基本雷达反射率、径向速度数据、VIL值的监测分析对大风、冰雹、强降水等强对流天气的预报、预警有重要作用。
译  名：
Analysis of Satellite and Radar Data of Regional Hail
作  者：
ZHOU Cheng;CHEN Hua-kai;YANG Xue-bin;ZHANG You-qin;Dezhou Meteorological Office in Shandong Province;
关键词：
satellite data;;radar data;;mesocyclone;;regional hail
摘  要：
In recent years,the application of satellite data was substantial increase. This paper analyzed a regional hail which took place in Dezhou on the July 14 th by using FY-2 infrared imagery,meteorological observation data and doppler radar data,the study contents included radar reflectivity,threshold,physical quantity,satellite image,the weather situation and so on. The results showed that at the large circulation background of two troughs and a ridge in the Eurasian continent,cold air that comes from the back of northeast trough continued to split and bloom into trough,low level southwest warm air and upper level northwest cold air bring about stratification of convective instability which provided favorable conditions form strong convection and hail. Occurred wind shear of trough northward and development triggered strong convective weather on 850 h Pa at afternoon. By analyzing infrared satellite imagery and radar data found that the monitoring of cloud top temperature,basic radar reflectivity,radial velocity data,and VIL to forecast and warn strong winds,hail,heavy rain and other severe convective weather have an important role.

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