sensitivitystudiesofahighaccuracysurfacemodelingmethod

	sensitivitystudiesofahighaccuracysurfacemodelingmethod
	Zhao Na 1; Yue Tianxiang 1; Zhao Mingwei 1; Du Zhengping 1; Fan Zemeng 1; Chen Chuanfa 2
刊名	sciencechinaearthsciences
	2014
卷号	57 期号:10 页码:2386
ISSN号	1674-7313
英文摘要	The sensitivities of the initial value and the sampling information to the accuracy of a high accuracy surface modeling (HASM)are investigated and the implementations of this new modeling method are modified and enhanced. Based on the fundamental theorem of surface theory, HASM is developed to correct the error produced in geographical information system and ecological modeling process. However, the earlier version of HASM is theoretically incomplete and its initial value must be produced by other surface modeling methods, such as spline, which limit its promotion. In other words, we must use other interpolators to drive HASM. According to the fundamental theorem of surface theory, we modify HASM, namely HASM.MOD, by adding another important nonlinear equation to make it independent of other methods and, at the same time, have a complete and solid theory foundation. Two mathematic surfaces and monthly mean temperature of 1951–2010 are used to validate the effectiveness of the new method. Experiments show that the modified version of HASM is insensitive to the selection of initial value which is particular important for HASM. We analyze the sensitivities of sampling error and sampling ratio to the simulation accuracy of HASM.MOD. It is found that sampling information plays an important role in the simulation accuracy of HASM.MOD. Another feature of the modified version of HASM is that it is theoretically perfect as it considers the third equation of the surface theory which reflects the local warping of the surface. The modified HASM may be useful with a wide range of spatial interpolation as it would no longer rely on other interpolation methods.
语种	英语
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/127537]
专题	中国科学院地理科学与资源研究所
作者单位	1.中国科学院地理科学与资源研究所 2.山东科技大学
推荐引用方式 GB/T 7714	Zhao Na,Yue Tianxiang,Zhao Mingwei,et al. sensitivitystudiesofahighaccuracysurfacemodelingmethod[J]. sciencechinaearthsciences,2014,57(10):2386.
APA	Zhao Na,Yue Tianxiang,Zhao Mingwei,Du Zhengping,Fan Zemeng,&Chen Chuanfa.(2014).sensitivitystudiesofahighaccuracysurfacemodelingmethod.sciencechinaearthsciences,57(10),2386.
MLA	Zhao Na,et al."sensitivitystudiesofahighaccuracysurfacemodelingmethod".sciencechinaearthsciences 57.10(2014):2386.