山西农业大学学报（自然科学版）Issue(5)：540-543,4.
枣庄近44年汛期极端降水指数突变特征分析
Mutation Analysis of Extreme Precipitation Index in Nearly 44 Years at Zaozhuang
陈连侠 1赵勇 1鹿翠华 1张美玲 2褚涛1
作者信息
- 1. 山东省枣庄市气象局 山东 枣庄 277800
- 2. 山东省滕州市气象局 山东 滕州 277500
- 折叠
摘要
Abstract
In order to establish Zaozhuang meteorological station of each index of nearly 1971 - 2014 in extreme precipi‐tation events in time series ,from 1971 to 2000 ,Zaozhuang 58024 stations daily precipitation data as the foundation , through the threshold of extreme precipitation events define 95 percentile using m - k and cumulative distance equal method in Zaozhuang in Recent 44 years in the flood season of extreme precipitation indices mutation characteristics were analyzed. The results showed that :the extreme precipitation events threshold of the flood season in Zaozhuang was 38.7mm ;and the extreme precipitation index of the flood season in Zaozhuang during the past 44 years had differ‐ent features of the mutated change. The maximum daily precipitation at 1997 increased in mutated trend ,it did not pass the significance test of 0.05 ;There was no mutation frequency of extreme precipitation ;Extreme precipitation and ex‐treme precipitation intensity had 3 mutations ,extreme precipitation and extreme precipitation intensity showed a trend of increase since 21 Century.Daily maximum precipitation ,precipitation days and precipitation intensity all caused the change of extreme precipitation ,with three precipitation into a better positive correlation ,the correlation coefficient reached 0.01 reliability test.关键词
汛期/极端降水/降水指数/突变特征Key words
Flood/Extreme Precipitation/Precipitation index/Mutation characteristics分类
农业科技引用本文复制引用
陈连侠,赵勇,鹿翠华,张美玲,褚涛..枣庄近44年汛期极端降水指数突变特征分析[J].山西农业大学学报（自然科学版）,2015,(5):540-543,4.
