1951—2020年福州市气温变化趋势分析

Analysis of Temperature Change Trend in Fuzhou from 1951 to 2020

利用1951—2020年福州国家基准气候站的1951—2020年的逐日气温资料,采用线性趋势估计、累积距平法和Mann-Kendall检验法,分析了福州市年平均气温、年平均日最高、年平均日最低气温的年际、年代际变化趋势。结果表明:福州市年平均气温、年平均日最高、年平均最低气温均呈上升趋势,其线性倾向率分别为0.237、0.195、0.245℃/10年。福州市平均最低气温、最高气温也呈增温趋势,平均最低气温的增温趋势比平均最高气温更为显著,福州市年平均气温在1993年出现拐点。

Based on the daily temperature data of Fuzhou National Standard Climate Station from 1951 to 2020,the interannual and interdecadal variation trends of annual mean temperature,annual mean daily maximum temperature and annual mean daily minimum temperature in Fuzhou City were analyzed by using linear trend estimation,cumulative anomaly method and Mann-Kendall test.The results show that the annual average temperature,the annual average daily maximum temperature and the annual average minimum temperature show an upward trend,and the linear tendency rates are 0.237,0.195 and 0.245℃/10 years,respectively.The average minimum temperature and maximum temperature of Fuzhou also showed an increasing trend,and the increasing trend of the average minimum temperature was more significant than the average maximum temperature.The annual average temperature of Fuzhou appeared an inflection point in 1993.