论文部分内容阅读
本文以1960年中国地区的地磁资料为例,并利用我国周围14个国外地磁台的资料以及DGRF1960的网格值,分别建立起表示中国地区地磁场分布的模式。在分析比较这些模式的基础上,提出用“联合模式”表示中国地区地磁场的分布,从而在保证地磁场拟合效果的前提下,改善了对边远地区地磁场的拟合效果。“联合模式”比我国和其它许多国家使用过的“单一模式”能更好地表示地磁场的分布,从而它给出了一条解决中国地磁图与邻近地区地磁图衔接问题的有效途径。
Taking the geomagnetic data of China in 1960 as an example, this paper uses the data of 14 foreign geomagnetic stations in our country and the grid value of DGRF1960 to establish the model of geomagnetic field distribution in China. Based on the analysis and comparison of these models, this paper proposes that the “joint mode” be used to represent the distribution of geomagnetic field in China so as to improve the fitting effect of geomagnetic field in remote areas under the premise of ensuring the fitting effect of geomagnetic field. The “united mode” can better represent the distribution of the geomagnetic field than the “single mode” used by our country and many other countries, so it gives an effective way to solve the problem of the convergence of the geomagnetic map of China and the neighboring regions.