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气象:2001,27(7):35-40
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用能量分析方法识别冰雹云
(1.中国气象科学研究院,北京 100081;2.内蒙巴盟气象局,临河市 015000)
Identification of Hail Cloud with Atmospheric Energy Method
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中文摘要: 用GMS TBB遥感资料和湿-比有效能量方法分析了1998年巴盟地区9次降雹过程,认为:①云顶温度及其水平梯度是识别冰雹云的重要参量,云顶温度低于-25℃才可能出现有灾冰雹,预报区云顶温度水平梯度大于50℃/50 km才可能出现重雹灾;②冰雹云生成前低层是高能舌,而中高层低能中心和负能量平流中心位于其北或西北方;③有雹无灾冰雹云生成前低层没有高能舌,在降雹区西北方450 km以内也没有中高层低能中心。
Abstract:With GMS TBB data and the moist available energy method, an analysis of the nine hail fallout processes in Bameng area on 1998 is made. It suggests: (1) the temperature of cloud top and its horizontal gradient were important parameters for identification of hail cloud; (2) as hail cloud genesis there was a tongue of high energy at the low level and a center of low energy at the mid and upper level while a center of negative energy advection was located over its north and northwest.
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基金项目:“96-020-01-07攻关专题的子专题”资助
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引用文本:
许晨海,张纪淮,朱福康,阎明星,杨大生,2001.用能量分析方法识别冰雹云[J].气象,27(7):35-40.
,2001.Identification of Hail Cloud with Atmospheric Energy Method[J].Meteor Mon,27(7):35-40.