Spatial and temporal distribution characteristic in the southwest
Based on the daily precipitation data of 102 meteorological stations in the southwest China from 1961 to 2010 ,some methodologies were used ,such as trend analyses method ,Mann-Kendall test method and wavelet analysis method , to analyze the spatial and temporal characteristic of rainstorm in the southwest during 50 years .It is showed that each indicator of extreme rainstorm events in the southwest presented an increasing trend from 1961 ~ 2010 , during which there were 4 variation periods . And mutation occurred around 1986 .The frequency of annual average rainstorm presented an increasing trend from northwest to southeast .Higher frequency of rainstorm was detected in the Guangxi while the lower frequency of rainstorm was detected in the west of Sichuan and most parts of Yunnan .
southwestrainstormspatial and temporal distributioncharacter
NETL
NSTL
万方数据
维普
