中国农业气象

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松嫩平原气候数据空间分布模型及栅格化信息系统的建立

李晓燕;王宗明;宋开山;张柏;刘殿伟;   

  1. 吉林大学地球科学学院,中国科学院东北地理与农业生态研究所,中国科学院东北地理与农业生态研究所,中国科学院东北地理与农业生态研究所,中国科学院东北地理与农业生态研究所 长春130061
  • 出版日期:2007-02-10 发布日期:2007-02-10
  • 基金资助:
    国家自然科学基金项目(40401003);; 吉林大学博士后基金

Establishment of Spatial Distribution Models and Grid Information System for Climate Data in Songnen Plain

LI Xiao-yan1, WANG Zong-ming2, SONG Kai-shan2, ZHANG Bai2, LIU Dian-wei2(1. School of Earth Science, Jilin University, Changchun 130061, China;2. Northeast Institute of Geography and Agricultural Ecology, CAS)   

  • Online:2007-02-10 Published:2007-02-10

摘要: 在GIS支持下,以松嫩平原DEM为基础,建立经度、纬度、海拔高度等大地形因子数据库及坡度、坡向、遮蔽度等小地形因子数据库。利用松嫩平原各县市1961-2000年平均太阳辐射、气温、降水和相对湿度数据,采用三维二次趋势面模型进行逐步回归,构建松嫩平原逐月主要气候要素与宏观地理因子的数学模型。完成松嫩平原各气候要素空间分布的综合数学模型,并利用GIS平台建立空间分辨率为1km×1km的松嫩平原主要气候要素的网格化数字专题图。

关键词: 空间分布模型, GIS, 气候要素, 松嫩平原

Abstract: Based on digital elevation model (DEM) in Songnen Plain, 2 databases were built up with GIS technology. Geographical database depended on longitude, latitude and altitude, and topographical database depended on slope, aspect and sheltered degree. Then, the mathematic relationship between main climatic factors month-by-month and macro-geographical information was developed in Songnen Plain with the model of two trends-surface of three-dimension, using observed data including solar radiation, air temperature, rainfall and relative humidity, during 1961-2000 from all of the meteorological stations in this region. At last, the synthetic mathematic model of spatial distribution of climatic factors in Songnen Plain was completed, and the digital map with grid information 1km×1km on climatic factors in Songnen Plain was carried out with GIS technology.

Key words: Spatial distribution model, Spatial distribution model, GIS, Climatic factors, Songnen Plain