近42年日照市气候变化分析

Analysis of the Climate and Abrupt Climate Change in Rizhao City during Recent 42 Years

根据日照市1961-2002年的年降水量、年平均气温以及季降水量、季平均气温资料,利用Mann-Kendall突变检验法和滑动t检验法,分析了日照市近42年的气候变化特征。结果表明:年平均气温、年降水量均存在突变,其中,冬季气温突变最为明显,秋季略有突变但不明显,春、夏季气温没有突变现象;夏季降水量突变最为明显,秋季不明显,冬、春季没有突变现象。

<Abstrcat>Based on the data of the annually mean air temperature and the annually precipitation, seasonal mean air temperature and seasonal precipitation in Rizhao city of Shandong province in China from 1961 to 2002,the characteristics and abrupt climatic change in recent 42 years have been analyzed. The results show that the annually mean air temperature and the annually precipitation have turned to warming and drying in the regions and the abrupt climate change mainly changes in winter and summer.