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蒙古为我国的北方重要邻国,其境内的西蒙古构造块体为我国主要地震带——南北地震带的主要北端构造.应用曲面样条(SP)方法,对蒙古地区119个野外地磁测点的观测数据进行了计算,获得2010.0年代蒙古地区地磁场空间分布,并与EMM2010.0模型给出蒙古地区地磁场空间分布进行比较.结果表明:曲面样条方法建立的蒙古地区地磁场模型与EMM给出的地磁场描述的蒙古地区各地磁要素的空间分布基本类似,但在局部地区存在一定差异,该差异在局部地区能达到±30′(I),±60′(D),±500nT(H、F、X、Y、Z).
Mongolia is an important northern neighbor to our country, and the West Mongolian structural block in its territory is the main northern end of the North-South Seismic Belt, the main seismic zone in our country. Using the surface spline (SP) method, , The spatial distribution of geomagnetic field in Mongolia during 2010.0 was obtained and the spatial distribution of geomagnetic field in Mongolia was compared with that of the EMM2010.0 model.The results show that the geomagnetic field model established in Mongolia with EMM The spatial distribution of the magnetic elements in Mongolia is similar to that of the geomagnetic field. However, there are some differences in the local areas, which can reach ± 30 ’(I), ± 60’ (D) and ± 500nT H, F, X, Y, Z).