Latest Lithospheric Magnetic Models and Some Understanding of Magnetic Anomalies in China

详细信息   

• 责任者：Wang Huilin (Institute of Geophysics and Geomatics ; China University of Geosciences ; Wuhan 430074 ; China) ; Chen Chao
• 刊名：Earth Science Frontiers
• 出版年：2008
• 卷期：15(3)
• 关键词：岩石圈 ; lithosphere ; 磁异常 ; magnetic anomalies
• 页码：p.64-71
• 图表：5 illus.,20 refs.
• 分类号：0400
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

摘要

///The paper introduces the latest improvements in mapping the magnetic field, including model MF5, NGDC-720 and WDMAM. MF5 is obtained by satellite CHAMP with spherical harmonic order n=16100 and correspondent wavelength segment is 400 2500 km. NGDC-720 and WDMAM, combined with satellite, airborne, shipboard and ground-based magnetic data, have different spherical harmonic order and resolution. The former one is provided by the National Geophysical Data Center (NGDC) whose spherical harmonic order n=16720 and correspondent wavelength segment is 562500 km. And WDMAM Candidate 1 is publicized by Dr. M. Purucker with 3minute resolution and nominal altitude 5 km above the reference ellipsoid, which is consistent with the observations of the lithospheric magnetic field as represented by MF5 after being upward continued. The author draws the magnetic field in China and adjacent areas using the above data.