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Geomagnetic field is the one of the inherent physical characteristics of the earth. For earthquake prediction to independent navigation or to other applications, local geomagnetic model plays a very important role. In order to control the performance of the local geomagnetic field model, the methods like polynomial, polyhedral function, spline function, rectangular harmonic analysis and spherical...
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....
There is an important relationship between the research of geomagnetic field model and the digital earth. The earth information includes that of geomagnetic field. Geomagnetic field model is to describe the geomagnetic field in mathematic way. It can provide the precise geomagnetic field information to help the development of the digital earth. At the same time, the geomagnetic field model is also...
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