摘要
统计分析了商丘 196 1～ 2 0 0 0年年平均气温 ,月平均气温 ,年平均最低、最高气温和月平均最低、最高气温变化 ,结果表明 :年平均气温呈上升趋势 ,年平均最低气温也呈上升趋势 ,而年平均最高气温却呈下降趋势 ,这种日夜气温变化的不对称性 ,使日较差呈变小趋势 ;商丘偏暖年集中在 2 0世纪 6 0年代初期和 90年代 ,偏冷期集中在2 0世纪 6 0年代末期到 80年代 ;2 0世纪
With the Shangqiu temperature data and extreme temperature data of monthly and yearly average during 1961～2000,this paper focus on the temperature change and trends. The results show that the temperature of yearly average of Shangqiu for 40 years appears to be ascending and the extreme minimum is ascending too, but the extreme maximum is decreasing, the period from initial stages of 1960's to 1990's tending wormer, while the telophase of 1960's to 1980's is a colder period. In the recent decade the yearly average of temperature tending wormer is a break.
出处
《河南气象》
2003年第1期7-8,共2页
Meteorology Journal of Henan
关键词
气温变化
商丘市
小波分析
统计方法
年际变化
气候突变
周期分析
Yearly average temperature
Yearly average maximum temperature
Yearly average minimum temperature
Change
