地理科学

地理科学 ›› 2005, Vol. 25 ›› Issue (2): 172-176.doi: 10.13249/j.cnki.sgs.2005.02.172

• 论文 • 上一篇    下一篇

近50年来东北地区降水的时空分异研究

唐蕴1, 王浩1, 严登华1, 王水生2   

  1. 1. 中国水利水电科学研究院水资源研究所, 北京, 100014;
    2. 新疆水利水电勘测设计研究院水资源规划所, 新疆, 乌鲁木齐, 830000
  • 收稿日期:2004-05-13 修回日期:2004-08-24 出版日期:2005-03-20 发布日期:2005-03-20
  • 基金资助:
    水利部“东北水资源配置模型研究”。

Research on the Spatial-Temporal Differentiation of Precipitation in Northeast China in Recent 50 Years

TANG Yun1, WANG Hao1, YAN Deng-Hua1, WANG Shui-Sheng2   

  1. 1. Deft. of Water Resources, IWHR, Beijing, 100044;
    2. Dept. of Water Resource Planning, Xinjiang Water Resources and Hydropower Investigation and Design Institute, Urumqi, Xinjiang, 830000
  • Received:2004-05-13 Revised:2004-08-24 Online:2005-03-20 Published:2005-03-20

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被引次数

197

摘要： 以ARCGIS8.3为关键数据处理平台,通过编制相关AML程序,对东北地区近50年来(1951-2000年)降水的时空分异特征进行了分析。东北区多年平均降水量为489mm,从东南向西北递减,多年平均东部区、中部区和西部区的降水分别为635mm,481mm,355mm。整体上看,东北区降水还有显著的周期性,东部区和西部区的降水周期均为11年,中部为32年。东北区降水整体上呈现下降趋势,但下降趋势不明显。

Abstract: By applying ARCGIS8.3 as a key data processing platform, this paper analyzes the spatial-temporal differentiation of precipitation within a duration of 50 years (1951-2000) in Northeast China.The mean annual precipitation in Northeast China is 489mm, successively decreasing from southeast area to northwest area, which is 635mm, 481mm, and 355mm, respectively, in the east, central, and west regions.Another prominent feature of precipitation in Northeast China is its periodicals, with a period of 11 years in the east and west area, and 32 years in the central area.

中图分类号: 

  • P333