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气象:2007,33(9):47-51
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2006年6月10日浙江飑线FY-2C卫星云图特征
(1.浙江丽水市气象局,323000;2.浙江省气象局;3.民航飞行学院)
Analysis of FY-2C Satellite Images of the Thunderstorm 060610 in Zhejiang
(1.Lishui Meteorological Office,Zhejiang Province 323000;2.Zhejiang Meteorological Bureau;3.Civil Aviation Flight University of China)
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投稿时间:2006-12-09    修订日期:2007-07-09
中文摘要: 利用FY-2C静止气象卫星云图和中尺度加密地面气象监测资料,采用Weiss Smith方法、云 顶亮温分层、多谱组合等定量分析技术对2006年6月10日发生在浙江中北部地区的一次冰雹 和雷雨大风天气的飑线过程进行连续监测和对流云识别分析。FY-2C卫星云图定量分析结果 表明这次飑线过程对流最旺盛期TBB低于230K(-44℃);长波红外分裂窗双谱组合Tc≤-4的低值区与强风暴天气影响区域相对应,Tc≤-7低值中心与强雷达回波区 相对应;强对流天气区域与分布在沿对流云团前进方向的TBB梯度最大区域有很好的对应关 系,强风暴天气发生区的移动路径与TV正梯度最大区域的移动路径相似。
中文关键词: FY-2C卫星云图  飑线  对流云
Abstract:By using FY-2C geo stationary weather satellite cloud images, the ground meso scale weather monitoring data and a series of techniques, such as Weiss Smith method, layering of brightness temperature of cloud top and combination of mult iple channel brightness temperatures, a quantitative analysis was performed for the hail and thunderstorm strong wind weather process that occurred in northern region of Zhejiang on June 10, 2006. The results of cloud image analysis show that th e TBB is lower than 230K(-44°C) when the convection grows most prosperouslyand the area with the brightness temperature difference of lower than -4°C cor responds to the place where is most affected by the strong thunderstorm. The ce nter of low value with Tc≤-7°Ccorresponds to the strong echo of rad ar. There is a good correspondence between the strong convective weather and ma ximum gradient of TBB, which distributes along the moving cloud cluster . The moving path of strong storm is similar to that of the maximum positive gradient of TV.
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基金项目:“浙江省小流域致灾强风暴监测预警技术研究”(2006C13025)和“基于 网格化的浙江省小流域短时强降水监测预警与服务系统”(CMATG2006Z11)项目联合资助。
引用文本:
洪毅,李玉柱,陈智源,李新芳,2007.2006年6月10日浙江飑线FY-2C卫星云图特征[J].气象,33(9):47-51.
Hong Yi,Li Yuzhu,Chen Zhiyuan,Li Xinfang,2007.Analysis of FY-2C Satellite Images of the Thunderstorm 060610 in Zhejiang[J].Meteor Mon,33(9):47-51.