四会市近56年气温变化特征分析

利用四会市地面气象观测站1960—2015年逐日气温资料,采用数理统计方法,分析平均气温以及各种气温极值、极端气候事件的变化特征。结果表明,近56年四会市年平均气温总体呈上升趋势,气候倾向率为0.013℃/a;20世纪60—80年代气温较低,90年代后气温明显上升,近10年气温上升剧烈;各季、各月平均气温均呈上升趋势。极端最高气温、极端最低气温增温趋势显著;高温天气日数在逐年增多,低温天气日数在逐年减少。

Analysis on Change Characteristics of Temperature in Sihui City in Recent 56 Years

Using the daily temperature data of meteorological observation station in Sihui City from 1960 to 2015,the change characteristics of average temperature,various extreme temperature,extreme weather events were analyzed by mathematical statistics method.The results showed that the annual average temperature of Sihui City in the past 56 years was increasing,the climate tendency was 0.013 ℃/a.The temperature was low in 1960s-1980s,and the temperature increased significantly in the 1990s,and the temperature increased sharply in the past 10 years.The average temperature of each quarter and each month was on the rise.Warming trends of extreme maximum temperature and extreme minimum temperature were significant.The number of high temperature weather days increased year by year,and the number of low temperature weather days decreased year by year.