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Potential fields and their partial derivatives produced by a 2D homogeneous polygonal source: A summary with some revisions
Jia, Zhen; Wu, Shiguo; Jia, Z (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China
2011-07-01
发表期刊GEOPHYSICS
ISSN0016-8033
卷号76期号:4页码:L29-L34
文章类型Article
摘要We summarized and revised the present forward modeling methods for calculating the gravity-and magnetic-field components and their partial derivatives of a 2D homogeneous source with a polygonal cross section. The responses of interest include the gravity-field components and their first-and second-order partial derivatives and the magnetic-field components and their first-order partial derivatives. The revised formulas consist of several basic quantities that are common in all the formulations. A singularity appears when the observation point coincides with a polygon vertex. This singularity is removable for the gravity formulas but not for the others. The compact forms of the revised formulas make them easy to implement. We compare the gravity-and magnetic-field components and their partial derivatives produced by a 2D prism whose polygonal cross section approximates a cylinder with the corresponding analytical fields and partial derivatives of the cylinder. The perfect fittings presented by both data sets confirm the reliability of the updated formulas.; We summarized and revised the present forward modeling methods for calculating the gravity-and magnetic-field components and their partial derivatives of a 2D homogeneous source with a polygonal cross section. The responses of interest include the gravity-field components and their first-and second-order partial derivatives and the magnetic-field components and their first-order partial derivatives. The revised formulas consist of several basic quantities that are common in all the formulations. A singularity appears when the observation point coincides with a polygon vertex. This singularity is removable for the gravity formulas but not for the others. The compact forms of the revised formulas make them easy to implement. We compare the gravity-and magnetic-field components and their partial derivatives produced by a 2D prism whose polygonal cross section approximates a cylinder with the corresponding analytical fields and partial derivatives of the cylinder. The perfect fittings presented by both data sets confirm the reliability of the updated formulas.
学科领域Geochemistry & Geophysics
DOI10.1190/1.3587221
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收录类别SCI
语种英语
WOS记录号WOS:000292156200016
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/11517
专题海洋地质与环境重点实验室
通讯作者Jia, Z (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China
作者单位Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China
第一作者单位中国科学院海洋研究所
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Jia, Zhen,Wu, Shiguo,Jia, Z . Potential fields and their partial derivatives produced by a 2D homogeneous polygonal source: A summary with some revisions[J]. GEOPHYSICS,2011,76(4):L29-L34.
APA Jia, Zhen,Wu, Shiguo,&Jia, Z .(2011).Potential fields and their partial derivatives produced by a 2D homogeneous polygonal source: A summary with some revisions.GEOPHYSICS,76(4),L29-L34.
MLA Jia, Zhen,et al."Potential fields and their partial derivatives produced by a 2D homogeneous polygonal source: A summary with some revisions".GEOPHYSICS 76.4(2011):L29-L34.
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