基于RS和GIS技术的新疆气温空间插值方法探讨

分析新疆90个气象站点2004年年均气温与经纬度、海拔高度的关系,之间具有较好的线形相关关系(r2=0.897)。通过"回归方程计算 空间残差"的方法对全疆2004年年均气温数据进行插值。验证结果为:插值计算值与实测值间相关系数r2=0.994,平均误差1.53%。插值结果表明:利用"回归方程计算 空间残差"的方法可以生成高精度、高空间分辨率新疆年平均网格温度结果。

Method of Spatial Interpolation of Air Temperature Based on GIS and RS in Xinjiang

We analyzed the relationship between the average temperature data of 90 meteorology stations in 2004 and,such as,the latitude and longitude,the height above sea level in Xinjiang.It is found that there was a good linear relationship(r2=0.897).The average temperatures data all over Xinjiang in 2004 was interpolated by the method of "regression equation computation space residual error".The verified result is: the correlation coefficient of interpolation calculating value and actual survey value is r2=0.994,average error is 1.53%.The interpolation results indicate that by using of the "regression equation calculating space residual error" method may produce the annual mean grid temperature of Xinjiang with high accuracy and high spatial resolution.