中国农业气象 ›› 2009, Vol. 30 ›› Issue (S2): 268-270.

• 论文 • 上一篇    下一篇

菏泽市近48年来气候变化特征及未来趋势分析

李瑞英;张翠英;刘继敏;   

  1. 山东省菏泽市气象局;
  • 出版日期:2009-12-20 发布日期:2009-12-20

Analysis of Characteristics and the Future Trend of Climate Change in Heze over the Last 48 Years

LI Rui-ying,ZHANG Cui-ying,LIU Ji-min(Meteorological Bureau of Heze City,Heze 274000,China)   

  • Online:2009-12-20 Published:2009-12-20

摘要: 利用线性分析和R/S方法,对菏泽市1961-2008年的气温、日照时数和降水量的变化特点及未来趋势进行分析。结果表明:气温在过去48a间呈显著的上升趋势,增加率为0.17℃/10a,同时Hurst值为0.77,表明当地未来气温上升的趋势还将持续;日照时数在过去48a间呈减少趋势,减少速率为127.46h/10a,其Hurst值为0.95,说明未来日照时数的变化趋势与过去一致,仍将呈减少的趋势;年降水量在过去48a间变化趋势不显著,其Hurst值为0.595,说明该地区降水量未来趋势随机性大,有可能发生改变或者保持基本稳定。

关键词: 菏泽市, 气候, 变化趋势

Abstract: By using linear and Rescaled Range Analysis(R/S) method,the change characteristic and the future trends of the annual average temperature,the annual sunshine duration and the annual precipitation were analyzed in Heze from 1961 to 2008.The results showed that the temperature increased in the last 48 years at a rate of 0.17℃ per ten years,while the Hurst index was 0.77 which indicated that the temperature would rise continuously in the future.The annual sunshine duration decreased at a rate of 127.46 hours per ten years,while the Hurst index was 0.95 which indicated that the sunshine duration would decrease continuously in the future.The annual precipitation showed no obvious change,while the Hurst index was 0.595 which indicated that the trend was great random and would change or remain stable in the future.

Key words: Heze, Climate, Change trend