现代农业科技Issue(8)：240-243,4.
近60年桓仁地区极端气温变化特征及其趋势分析
Analysis on the Characteristics and Trends of Extreme Temperature in Huanren Area in Recent 60 Years
崔曜鹏 1谭政华 1吴荷 1秦瑜 1寇思聪 1孙秀恒1
作者信息
- 1. 辽宁省本溪市气象局，辽宁本溪 117000
- 折叠
摘要
Abstract
Based on daily temperature data,the general features of the temperature in Huanren from 1953 to 2014 and as well as its periodic oscillation were investigated by linear trend analysis,Gaussian,Mann-Kendal mutation test,and wavelet analysis method.The results showed that extreme maximum temperature in Huanren mainly occured in May to August,which occured most frequently in July and August;extreme minimum temperature occurred mainly in the December to March next year,which occured most frequently in January .Extreme temperature in Huanren has increased over time,the warming trend of extreme minimum temperature was more significant with a rate of 1.2℃per 10 years.The extreme temperature anomalies exhibit evident decadal change in the mid-1970s,both the extreme maximum temperature and extreme minimum temperature in Huanren area tend to decreased after the mid -1970s.Further analysis indicated that there were typical low-frequency oscillations in Huanren extreme temperature anomalies,which were characterized by obvious quasi-20 years cycle,and the period of high-frequency oscillations was 5 years.There was an obvious low-frequency oscillation in quasi-20 years cycle,and both were characterized by the presence of high-frequency oscillations of quasi-5 years.In addition,extreme maximum temperature in Huanren still has significant quasi-10 years oscillation characteristics.关键词
极端气温/线性趋势/突变检验/小波分析/辽宁桓仁/1953-2014年Key words
extreme temperature/variation trend/Mann-Kendall test/wavelet analysis/Huanren Liaoning/1953-2014分类
天文与地球科学引用本文复制引用
崔曜鹏,谭政华,吴荷,秦瑜,寇思聪,孙秀恒..近60年桓仁地区极端气温变化特征及其趋势分析[J].现代农业科技,2015,(8):240-243,4.
