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地面磁测数据正常场改正现行方法探讨
引用本文:孙中任.地面磁测数据正常场改正现行方法探讨[J].地质与勘探,2011,47(4):679-685.
作者姓名:孙中任
作者单位:1. 沈阳地质矿产研究所,辽宁沈阳,110034
2. 黑龙江省地球物理勘察院,黑龙江哈尔滨,150036
基金项目:中国地质调查局项目(基[2011]02-22-16)资助
摘    要:地面磁测数据正常场改正是地面磁测工作资料整理的一个不可或缺的步骤。正常场改正的好与坏、对与错,改正的程度如何,都直接关系到磁异常的形态,以至于磁测工作的解释结果。本文通过讨论国际地磁参考场的求法、地面磁测工作正常场的改正意义,比较了国际地磁参考场与地磁图的精度,对现行的地面磁测数据正常改正的方法探讨后,通过工作实例说明...

关 键 词:地面磁测  磁测数据  正常场  国际地磁参考场  地磁数据  资料整理  磁异常  网格化
收稿时间:2009/11/9 0:00:00
修稿时间:8/6/2010 12:00:00 AM

Discussion of Current Correction Methods of the Normal Magnetic Field for Data Processing of Ground Magnetic Surveys
SUN Zhong-ren.Discussion of Current Correction Methods of the Normal Magnetic Field for Data Processing of Ground Magnetic Surveys[J].Geology and Prospecting,2011,47(4):679-685.
Authors:SUN Zhong-ren
Institution:SUN Zhong-ren1,ZHAO Xue-juan1,WANG Li-na2(1.Shenyang Institute of Geology and Mineral Resources,Shenyang,Liaoning 110034,2.Institute of Geophysical Survey of Heilongjiang Province,Ha'erbin,Heilongjiang 150036)
Abstract:Correction of the normal geomagnetic field is essential to data processing of ground magnetic surveys.Its quality,correctness or wrongs,and correction degrees have direct effects on the resultant anomaly forms as well as interpretations of magnetic surveys.This paper presents the calculation method for the international geomagnetic reference field(IGRF),discusses the significance of correction of the normal magnetic field to ground magnetic surveys,compares accuracies of the IGRF and geomagnetic maps,and di...
Keywords:ground magnetic survey  correction of normal field  IGRF  gridded data  
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