Forward modeling of gravity, gravity gradients, and magnetic anomalies due to complex bodies

	Forward modeling of gravity, gravity gradients, and magnetic anomalies due to complex bodies
	Luo Yao ; Yao Changli
刊名	JOURNAL OF CHINA UNIVERSITY OF GEOSCIENCES
	2007-09-01
卷号	18 期号:3 页码:280-286
关键词	polyhedral body gravitational field and magnetic field gravity gradient tensor forward calculation coordinate transformation
ISSN号	1002-0705
文献子类	Article
英文摘要	On the basis of the results of improved analytical expression of computation of gravity anomalies due to a homogeneous polyhedral body composed of polygonal facets, and applying the forward theory with the coordinate transformation of vectors and tensors, we deduced both the analytical expressions for gravity gradient tensors and for magnetic anomalies of a polygon, and obtained new analytical expressions for computing vertical gradients of gravity anomalies and vertical component of magnetic anomalies caused by a polyhedral body. And also we developed explicitly the complete unified expressions for the calculation of gravity anomalies, gravity gradient, and magnetic anomalies due to the homogeneous polyhedron. Furthermore, we deduced new analytical expressions for computing vertical gradients of gravity anomalies due to a finite rectangular prism by applying the newly obtained expressions for gravity gradient tensors due to a polyhedral target body. Comparison with forward calculation of models shows the correctness of these new expressions. It will reduce forward calculation time of gravity-magnetic anomalies and improve computational efficiency by applying our unified expressions for joint forward modeling of gravity-magnetic anomalies due to homogeneous polyhedral bodies.
WOS关键词	COMPUTATION ; BODY
WOS研究方向	Geology
语种	英语
出版者	CHINA UNIV GEOSCIENCES
WOS记录号	WOS:000250116300008
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/68236]
专题	中国科学院地质与地球物理研究所
通讯作者	Luo Yao
作者单位	1.State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 2.Geo Detect Lab, Minist Educ Res, Beijing 100083, Peoples R China 3.China Univ Geosci, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Luo Yao,Yao Changli. Forward modeling of gravity, gravity gradients, and magnetic anomalies due to complex bodies[J]. JOURNAL OF CHINA UNIVERSITY OF GEOSCIENCES,2007,18(3):280-286.
APA	Luo Yao,&Yao Changli.(2007).Forward modeling of gravity, gravity gradients, and magnetic anomalies due to complex bodies.JOURNAL OF CHINA UNIVERSITY OF GEOSCIENCES,18(3),280-286.
MLA	Luo Yao,et al."Forward modeling of gravity, gravity gradients, and magnetic anomalies due to complex bodies".JOURNAL OF CHINA UNIVERSITY OF GEOSCIENCES 18.3(2007):280-286.