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本文介绍了由地形图上得到的计算点的方里网坐标和地面磁测时由地形图上得到的高程或航空磁测时由气压高度换算得到的海拔高度,使用计算机计算出某高度的正常地磁场值的方法和步骤,并且给出了用于微计算机的LEVEL Ⅱ BASIC语言编制的实用程序。应用本方法计算得到的值,已在航磁数据自动处理中使用。
This paper introduces the square grid coordinates of the calculated points obtained from the topographic maps and the altitude obtained from the topographic maps when measured by the terrestrial magnetic measurements or the altitudes obtained from the altitudes of the altitudes of the aeromagnetic surveys. The computer calculates a normal altitude Methods and steps of geomagnetic field values, and presents the utility program of LEVEL II BASIC language for microcomputer. The value calculated by this method has been used in the automatic processing of aeromagnetic data.