利用磁场水平调整方法实现航磁数据融合——以山东省齐河—禹城地区为例  

Aeromagnetic data merging based on magnetic data leveling:A case study of the Qihe-Yucheng area, Shandong Province

作　　者：吴成平 杨雪 于长春 熊盛青 范正国 苏永军 郝兴中[3] WU Cheng-Ping;YANG Xue;YU Chang-Chun;XIONG Sheng-Qing;FAN Zheng-Guo;SU Yong-Jun;HAO Xing-Zhong(China Aero Geophysical Survey and Remote Sensing Center for Natural Resources,Beijing 100083,China;Tianjin Center,China Geological Sur-vey,Tianjin 300170,China;Shandong Institute of Geological Survey,Jinan 250104,China)

机构地区：[1]中国自然资源航空物探遥感中心,北京100083 [2]中国地质调查局天津地质调查中心,天津300170 [3]山东省地质调查院,山东济南250104

出　　处：《物探与化探》2023年第4期1071-1077,共7页Geophysical and Geochemical Exploration

基　　金：ND**工程区航空物探调查(DD20221640);青岛海洋科学与技术试点国家实验室“问海计划”项目(2021WHZZB0400);国家重点研发计划项目(2017YFC0602201);山东省地质勘查项目(鲁勘字(2020)63号)。

摘　　要：山东省齐河—禹城地区于不同年份开展过高精度航磁测量,为了更好地实现老资料的合理再利用,对已有数据进行融合处理形成更大比例尺的高精度航磁资料是十分必要的。本文以2011年和2017年两次航磁测量数据为基础,经过数据改正、延拓、合并等处理,使用切割线调平、弱磁场区调平以及微调平等方法,融合形成了1∶2.5万高精度航磁数据,其疏密度为250±16.2 m,总精度为1.3 nT。新数据具有更好的分辨力,包含更丰富的地球物理信息,填补了该地区1∶2.5万航磁资料的空白,是后续数据处理和解释的重要基础资料。High-precision aeromagnetic surveys have been carried out in the Qihe-Yucheng area,Shandong Province in different years.To effectively reuse the existent survey data,it is necessary to merge them to form large-scale high-precision aeromagnetic data.This study processed the aeromagnetic data acquired in 2011 and 2017 through correction,continuation,and combination.Then,these data were merged using methods including tie-line leveling,weak magnetic data leveling,and micro-leveling.As a result,1∶25,000 high-precision aeromagnetic data were obtained,with a survey grid spacing of 250±6.2 m and total precision of 1.3 nT.The new data had higher resolution and contain richer geophysical information.This study fills the gap of 1∶25,000 aeromagnetic data of the study area and provides important basic data for subsequent data processing and interpretation of the study area.

关 键 词：齐河—禹城地区 数据融合 航空地球物理 磁场水平调整 

分 类 号：P631[天文地球—地质矿产勘探]