时空统一的三维中国地磁场模式应用初步研究

The prelimary reasearch on the 3 dimension models of geomagnetic field in China and its applications

利用１９５０．０，１９６０．０，１９７０．０，１９８０．０，１９９０．０等年代的地磁资料，建立了时空变量统一的三维中国地磁基本场模式。结果表明，所建立的时空变量统一的三维中国地磁基本场模式是成功的，可行的。本文还以此模式场作为正常场，计算出１９７０．０年中国地磁异常场，并把地磁异常与地质构造（岩性分布）相比较，发现两者有着密切的关系。

In this paper, using the geomagnetic data in 1950.0～1990.0, we have established the 3 d models of geomagnetic field in China (uniting time and space variables). The results show that these 3 d models are successful. Futhermore, applying the models as the normal fields, we have also obtained the abnormal geomagnetic fields in China in 1970.0, and we found there is certain relation between the abnormal geomagnetic fields and the geological structure.