水资源与水工程学报2013，Vol.24Issue(3)：105-112,115,9.
基于TRMM 3B42数据的1998-2010年中国暴雨时空特征分析
Analysis of spatial and temporal characteristics of rainstorm in China from 1998 to 2010 based on TRMM 3B42 data
摘要
Abstract
Based on TRMM 3B42 precipitation data,5 time series at annual scale were defined.Then the spatial and temporal dynamics of rainstorm were evaluated by GIS technology and mathematical method.The results show that Both the amount of annual precipitation and annual rainstorm precipitation appeared slight decrease trend and their spatial patterns were much similar in the past 13 years.Significant fluctuations of rainstorm ratio could be found in the past 13 years.In the rainstorm concentration area,annual rainstorm precipitation shows more significant fluctuations than annual precipitation.Annual rainstorm frequency changes smoothly but with significant spatial difference.The imbalanced distribution of rainstorm in latitudinal direction is more obvious than that of longitudinal direction.Rainstorm showed tendency of moving to northeast in the past 13 years.The changing trends of the five variables show significant spatial differences and most areas appear increase or decrease but not significant trend.关键词
TRMM 3B42/暴雨/重心/Mann-Kendall/时空特征Key words
TRMM 3B42/ rainstorm/ center of gravity/ Mann-Kendall/ spatial-temporal dynamics分类
天文与地球科学引用本文复制引用
常远勇,侯西勇,于良巨,毋亭..基于TRMM 3B42数据的1998-2010年中国暴雨时空特征分析[J].水资源与水工程学报,2013,24(3):105-112,115,9.基金项目
中国科学院战略性先导科技专项项目(XDA05130703) （XDA05130703）
中国科学院知识创新工程重要方向项目(kzcx2-yw-224) （kzcx2-yw-224）
