安徽农业科学2011,Vol.39Issue(15):9047-9050,9080,5.
黔西南地区冰雹云VIL演变特征分析
Analvses on Variation Characters of Verticallv Integrated Liquid Water Content about Hail Cloud Cell in in Southwestern Guizhou
摘要
Abstract
Using the Xingyi new generation of Doppler weather radar complex scan data as original materials and WSR - 88D algorithm VIL ( Vertically Integrated Liquid Water Content) ,VIL about cell was calculated with its theoretical model. And the maximum of VIL was identified by using of max function. The concepts of VILH and VILD were introduced. The distributive characteristic of VIL,VILmax,VILH and VILD were analyzed to the 12 hail cells in 2007 to 2008 of southwestern Guizhou province. Results showed that the hail cells begun to drop when VIL reached the maximum value. After the hailstones ending,the VIL value dropped rapidly. In time sequence cnrves,the VIL was in peak form. There were “explosive increasing” and “explosive decreasing” phenomena around the time in the evolution process of each hail cell. There were no shooting on the ground after the first VIL max increasing until the occurrence of second increasing about I to 2 time interval after the first increasing. There was no first “explosive increasing” before the second shooting in the same cell ,and the hail shooting on the ground stopped with the occurrence of “explosive decreasing”. Analyzed from the seasons,the average value of the VIL,VILmax,VILH and VILD of March and April was the maximum,followed by May and June. The one in August was the minimum.关键词
冰雹云/VIL演变特征/黔西南地区Key words
The hail cells/ VIL variation character/ The southwest of Guizhou Province分类
天文与地球科学引用本文复制引用
王芬,李腹广..黔西南地区冰雹云VIL演变特征分析[J].安徽农业科学,2011,39(15):9047-9050,9080,5.基金项目
贵州省气象局青年科技基金项目(黔气科合QN[2009]10号). (黔气科合QN[2009]10号)