Study on Establishing Local Marine Geomagnetic Field Model

摘要：

Establishment local marine geomagnetic field model with marine geomagnetic observation is very important for marine research and exploration. Four methods, which are Taylor polynomial. Legendre polynomial, spline surface function and multi-surface function, are introduced into the work. Some key problems in the establishment of the model by the four methods are studied and discussed in the paper. In order to further improve the modeling accuracies of the four methods, zoning modeling is also studied and given out. Integrated the above researches, an optimum method, multi-surface function with zoning modeling, is presented by comparing and analyzing the four methods in actual applications, which achieves the model accuracy better than 5 nT in establishing local marine geomagnetic field finally.

关键词： establishment of local marine geomagnetic field model Taylor polynomial Lengdre polynomial multi-surface function spline-surface function.

作者: Jianhu Zhao Hongmei Zhang Shengping Wang

作者单位: School of geodesy and Geomatics,Wuhan University Luoyu Road 129,Wuhan city,Hubei province,430079 School of power and mechanical engineering,Wuhan University,Wuhan,Hubei,430072

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 4084-4088

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）