摘要
采用线性倾向估计法和Mann-Kendll非参数检验法对合肥气象站1953—2008年的气温观测数据进行了趋势分析和突变特征分析,以年平均气温和4个季节的平均气温作为分析对象。结果表明,合肥年平均气温呈增温趋势,线性倾向值是0.23℃/10年,各季节平均气温均表现出增温趋势,增温幅度大小依次是春季>冬季>秋季>夏季。合肥年平均气温和季节平均气温均有突变现象发生。
The tendency and abrupt climatic change of temperature form 1953 to 2008 in Hefei City were analyzed by using linear regression and Mann-Kendall technique. The annual temperature and the average temperature in the four seasons were analyzed. The results showed that, the annual temperature were warming in the last 56 years,the warming trends were 0.23 ℃/10a, the seasonal temperature were warming as well, and the order of the warming trend was that ,spring〉 winter〉 autumn〉 summer. The abrupt climatic change appeared both in the annual temperature and the seasonal temperature.
出处
《现代农业科技》
2011年第1期312-314,共3页
Modern Agricultural Science and Technology
