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用云团强中心附近最大亮温梯度区判别强降水 被引量:5

Identification of Heavy Rain with Movement of Maximum Temperature-Gradient Zone around Cloud Cluster Center
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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. 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.
出处 《气象科技》 2005年第5期401-403,共3页 Meteorological Science and Technology
基金 浙江省科技厅重点项目"浙江省暴雨预报系统研究" 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
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  • 1GRIFFITH C G, WOODLEY W L. Rain estimates from geosynchronous satellite magery: visible and infrared studies[J]. Mon Wea Rev, 1978,106:1153-1171.
  • 2SCOFIELD, OLIVER V J. A scheme for estimating convective rainfall from satellite imagery EAB. In:NOAA Tech Memo[C]. NESS 86. U S Dept Commerce, Washington DC, 1988.
  • 3ARKIN P A , JANOWIAK J. Analysis of the global distribution of precipitation[J]. Dvn Atmos Oceans.1991, 16: 5-16.
  • 4ARKINP A , MEISNER B N. The relationship between large scale convective rainfall and cold cloud over the western hemisphere during 1982-1984 [J].Mon Wea Rev, 1987,115: 51-74.
  • 5ADLER R F, HUFFMAN G J. Tropical rainfall distributions determined using TRMM combined with other satellite and rain gauge information[J]. J Appl Meteor , 2000,39: 2007-2023.
  • 6VINCENTE G A, SCOFIELD R A.etal. The operational GOES infrared rainfall estimation technique[J].Bull Amer Meteor Soc, 1998, 79: 1883-1897.

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