Downward continuation of aeromagnetic data to the marine surface

被引：0
作者：
Xu Shizhe [1 ]
Wang Rui [2 ]
Zhou Jianxin [3 ,4 ,5 ]
Xiao Pengfei [1 ]
Chen Shengchang [1 ]
机构：
[1] Zhejiang Univ, Dept Earth Sci, Hangzhou 310027, Peoples R China
[2] Chinese Peoples Liberat Army, Navy Headquarters, Dept Navigat Guarantee, Tianjin 300042, Peoples R China
[3] China Aerogeophys Survey, Beijing 100083, Peoples R China
[4] Remote Sensing Ctr Land & Nat Resource, Beijing 100083, Peoples R China
[5] China Univ Geosci, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China
来源：
ACTA OCEANOLOGICA SINICA | 2008年 / 27卷 / 01期
关键词：
aeromagnetic; marine-magnetic; downward continuation of potential field; iteration method; fast fourier transform;
D O I：
暂无
中图分类号：
P7 [海洋学];
学科分类号：
0707 ;
摘要：
The existing methods of downward continuation of potential field cannot be used to continue the aeromagnetic data to the marine surface because of the limited continuation distance. An iteration method for the downward continuation of potential field with a much larger continuation distance has been developed, which can continue the aeromagnetic data to the marine surface and get the marine - magnetic chart with the same scale as the aeromagnetic data. This downward continuation method will greatly raise the efficiency of marine - magnetic investigation. The principle of the iteration method is presented. The method is demonstrated on synthetic models and real aeromagnetic data. Also, the error brought by continuation is discussed. The efficiency of the iteration method for the downward continuation of potential field is compared with the fast fourier transform (FFT) method, the former is much better than the latter.
引用
收藏
页码：54 / 60
页数：7
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