Analysis of Daily Precipitation Characteristics over North China during Rainy Seasons
华北汛期日降水特性的变化分析

Based on the daily precipitation data from 740 stations, by means of linear trend estimate, Mann-Kendall test method, the long-term trends and interdecadal variation of precipitation, frequency, contribution to the total rainfall over North China during rainy seasons are analyzed. Some new results are discovered as follows: the rainfall over North China during rainy seasons, and five kinds of precipitation frequency and contribution over North China during rainy seasons have a certain decreased trend with d...