摘要
以宁夏北部地区近百年来的年降水量、气温距平资料以及全区各季有仪器观测以来的温度降水资料为基础 ,利用Mann -Kendall突变检验法和滑动t检验法 ,分析了宁夏近百年来气候变化的阶段性和突变特点。结果表明 :近百年来宁夏气候大概经历了五个主要阶段 ;80年代中期年平均气温及秋冬季平均气温发生突变 ;6 0年代左右年降水量发生突变 ;
Using Mann-Kendall jump test and moving t test, the periods and jump character of climatic variation in Ningxia in recent century are analysed based on the data of annual rainfall and temperature departure during recent hundred years in north of Ningxia and the data of temperature and precipitation obtained from 19 meterological stations of Ningxia since using apparatus. The results show that the climate in Ningxia during recent century can be divided into 5 main periods. Before 1930's, it was a dry and cold period; from 1930's to the middle 1950's, a warm and humid period; from the middle 1950's to the late 1960's, a cold and humid period; from the late 1960's to the middle 1980's, a cold and dry period, and from the middle 1980's to now, a warm and dry period. The annual mean temperature as well as autumn and winter temperature became jump in the middle 1980's. About 1960's, the annual precipitation became jump and in the middle and late 1970's, the autumn precipitation of Ningxia became jump.
出处
《高原气象》
CSCD
北大核心
2001年第1期100-104,共5页
Plateau Meteorology
基金
宁夏回族自治区科委课题"宁夏短期气候预测研究"资助
