东南大学学报（自然科学版）Issue(z2)：265-268,4.DOI:10.3969/j.issn.1001-0505.2013.S2.010
1965-2009年青藏高原地区温度的空间插值分析
Analysis on spatial interpolation of temperature in Qinghai-Tibetan Plateau in 1965-2009
摘要
Abstract
The temperature change in the Qinghai-Tibetan Plateau is studied by using spatial interpola-tion technology.The altitude, longitude and latitude factors are taken into account based on the con-ventional interpolation method, and an integrated interpolation method for the temperature, named model fitting and residual correction interpolation method, is proposed.First, the regression model be-tween the temperature and the independent variables including altitude, longitude and latitude is built, and this model has passed t-significant test at 0.05.Then, the residuals calculated by regression value and measured value are itn erpolated by using the conventional interpolation method.Finally, the final interpolation temperature map is obtained by correcting the residuals interpolated results into model re-gression map.The experimental results demonstrate that, compared with the conventional method, the integrated interpolation method can obtain better interpolation results with a smaller root mean square error( RMSE) value.The RMSEs of the integrated interpolation method in the selected 14 test points are less than 3.0℃, while the RMSEs in the conventional method exceed 3.0℃.The smallest RMSE using the proposed method is only 1.26℃, which is 2 times better than that of the conventional meth-od.The results also show the proposed integrated interpolation method has a better applicability and higher accuracy of interpolation of temperature in the Qinghai-Tibetan Plateau.关键词
青藏高原/样条拟合/克里金插值/反距离加权插值/模型插值Key words
Qinghai-Tibetan Plateau/spline fitting/Kriging interpolation/inverse distance weighted interpolation/model interpolation分类
天文与地球科学引用本文复制引用
戚浩平,杨波,路云阁,杨清华,方洪宾..1965-2009年青藏高原地区温度的空间插值分析[J].东南大学学报（自然科学版）,2013,(z2):265-268,4.基金项目
中国地质调查局资助项目（12120113099800）． （）
