1961-2010年平潭岛温度变化特征

Pingtan island temperature change characteristics in 1961-2010

根据1961-2010年平潭温度观测资料,采用线性倾向估计、累计距平法和Mann-Kendall检验等方法,研究了平潭岛近50年的温度变化特征。结果表明:平潭岛年平均温度以0.22℃/10a的速率呈显著上升趋势,1997年发生了由冷到暖的突变。突变时间冬季最早(1992年),秋季最迟(2000年)。春、夏季开始日期提前,秋、冬季开始日期延后,暖季延长,冷季缩短。

According to the Pingtan temperature observation data in 1961-2010, using the linear trend estimation, the cumulative departure method and Mann Kendall examination method, studies the temperature characteristics of Pingtan island nearly 50 years. Results show that the average annual temperature of Pingtan island was significantly at a rate of about 0.22℃/10 a rising trend, from cold to warm mutation happened in 1997. Mutations in winter time (1992), the earliest autumn (2000) the latest, autumn and winter start date earlier, spring, summer start date later, warm season becomes long, the cold season becomes short.