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| Mapping techniques for the World Digital Magnetic Anomaly Map (WDMAM) |
| DU Jin-Song1,2, CHEN Chao1, LIANG Qing1 |
1.Hubei Subsurface Multi-scale Imaging Key Laboratory,Institute of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China;
2.State Key Laboratory of Geodesy and Earth's Dynamics,Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China |
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Abstract As a basic map of the Earth's global geophysical fields, the World Digital Magnetic Anomaly Map (WDMAM) aims at serving education, industry and science. Especially, the global coverage of the map makes possible world-wide comparative researches and global systematic studies of geosciences. Realizing original data sources, processes and distributions of resolution and reliability of the WDMAM is certainly very important and helpful to correctly and properly using this data set in actual applications. Therefore, in this paper, the authors introduce the background, scientific significances and form of the map, present the basic principles of mapping, analyze the corresponding techniques, and deal with the mapping progress. On such a basis, the authors summarize the current bottlenecks and difficulties as well as some points which should be further improved. In addition, the authors correspondingly propose the possible development approaches of the future mapping and provide some basic references for compiling the worldwide magnetic anomaly data by China's experts.
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Received: 13 May 2016
Published: 20 June 2017
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