首页 | 官方网站   微博 | 高级检索  
     

用云团强中心附近最大亮温梯度区判别强降水
引用本文:胡波,杜惠良,肖云.用云团强中心附近最大亮温梯度区判别强降水[J].气象科技,2005,33(5):401-403.
作者姓名:胡波  杜惠良  肖云
作者单位:浙江省气象局气象台,杭州,310017
基金项目:浙江省科技厅重点项目“浙江省暴雨预报系统研究”和浙江省气象局项目“利用卫星云图判别5~7月强降水研究”资助
摘    要:用1996~2001年5~7月GMS红外云图资料,分析了GMS红外云图云顶温度与对应的地面雨量站的1 h雨量的关系,结果表明云团降水最强的区域既不是出现在云顶温度最低的区域,也不是出现在云顶温度梯度最大的区域,而是出现在云团强中心附近的云顶最大温度梯度区移动方向大约4个像素的地方.同时采用回归分析方法统计了云团最强降水与最低云顶亮温和发展率等因子的关系,然后根据云团强中心附近的最大亮温梯度区的移动来估计云团未来1 h强降水可能的强度与落区.

关 键 词:红外云图  云团  强降水  云顶亮温  强降水  梯度区  云团  GMS红外云图  云顶温度  判别  回归分析方法  温度梯度
收稿时间:2004-06-06
修稿时间:2004-08-04

Identification of Heavy Rain with Movement of Maximum Temperature-Gradient Zone around Cloud Cluster Center
Hu Bo,Du Huiliang,Xiao Yun.Identification of Heavy Rain with Movement of Maximum Temperature-Gradient Zone around Cloud Cluster Center[J].Meteorological Science and Technology,2005,33(5):401-403.
Authors:Hu Bo  Du Huiliang  Xiao Yun
Affiliation:Zhejiang Provincial Meteorological Office, Hangzhou 310017
Abstract:Using GMS infrared image data between May and July from 1996 to 2001,the relationship between temperature and the corresponding station's precipitation was analyzed.The results show the maximum rainfall did not occur at areas where the cloud-top temperature was the lowest or the cloud-top temperature gradient was the largest,but occurred at about four pixels ahead of the area with the largest temperature gradient around the lowest-temperature centers of cloud clusters.Meanwhile,using the regression method,an analysis was made of the relationship between factors such as the cloud top minimum temperature,development rate and heavy rainfall.Then based on the movement of area with the largest temperature gradient around the strong low-temperature center of cloud clusters,the possible precipitation intensity and distribution in one hour can be estimated.
Keywords:infrared image  cloud cluster  heavy rain
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《气象科技》浏览原始摘要信息
点击此处可从《气象科技》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号