【摘要】 利用东北地区 172个气象台站 3 0a(1961年～ 1990年 )的整编温度资料和东北地区 5 0 0m× 5 0 0mDEM数据 ,建立了东北地区温度要素的空间分布模型。结果表明 ,温度要素的宏观本底值的模拟以三维二次幂级数展开法效果较好 ,其误差气温多在 0 2℃～ 0 4℃ ,≥ 10℃初日、终日为 1 1d～ 2 0d ,≥ 10℃初终间隔日数为 2 2d～ 2 9d ,≥ 10℃积温为 5 6℃·d～ 89℃·d。 3省各温度要素的小地形影响程度不同 ,文中对小地形影响显著的要素进行了模型修正。利用建立的温度要素空间分布模型 ,构建了东北地区各温度要素的网格数字专题地图更多还原

【Abstract】 In this paper, spatial distribution model of temperature elements are established by using the reorganized temperature data from 172 stations within 30 years and digital elevation model (DEM) in Northeast China. The simulated effects of the macro topography value of the temperature elements methods are good through using the power series expansions, of which the mean temperature errors are 0 2～0 3℃ and the errors ≥10℃ of the first and the final date are 1 1～2 0 days and the errors of the interval between them are 2 2～2 9 days and the errors of ≥10℃ accumulated temperature are 56～89℃·d. The models are modified when the temperature elements are influenced by the micro topography factors, upon which the grid thematic maps of northeast China are based.更多还原