DIGITAL PROCESSING OF AEROMAGNETIC DATA IN CHINA: Review and Enlightenment
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摘要:
中国航空磁测经过70年不断发展, 基本实现陆域和海域的全覆盖, 航空磁测资料数字化处理起到了关键作用. 作为我国航空磁测资料数字化处理的最初实践, 以侯重初为代表的老一辈地球物理学家依靠自主研究发的位场转换程序完成泛华北航磁资料处理, 开启了我国航磁资料数字化处理的新征程, 为中国东部航磁解释和深部构造研究提供了素材, 在华北构造航磁研究中起到了关键作用. 通过回顾我国航空磁测事业的发展历程, 总结历史经验和成功做法, 以期为新时代继续发展中国特色的航空磁测理论、方法、技术提供借鉴.
Abstract:The aeromagnetic survey in China has basically achieved full coverage of land and sea territory with 70 years of continuous development, owing to the essential contribution of digital processing of aeromagnetic data. As the initial practice of aeromagnetic survey data digital processing in China, the older generation of geophysicists, represented by Prof. Hou Chong-chu, have completed the aeromagnetic data processing in pan-North China with self-developed potential field transformation program, which started a new course of aeromagnetic data digital processing, supplied materials for aeromagnetic interpretation and deep structure research in eastern China, and played a key role in the aeromagnetic study of North China tectonics. By reviewing the development history of aeromagnetic survey in China, the paper summarizes historical experience and successful practices to provide reference for further development of aeromagnetic survey theory, method and technology in the new era.
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表 1 泛华北航磁资料处理印发图件
Table 1. Maps by aeromagnetic data processing in pan-North China region
编号 图名 处理方法 1 泛华北地区航磁ΔT上延20 km异常等值线图 向上延拓 2 泛华北地区航磁ΔT上延40 km异常等值线图 向上延拓 3 泛华北地区航磁ΔT化极上延10 km异常等值线图 向上延拓、化极 4 泛华北地区航磁ΔT化极上延20 km异常等值线图 向上延拓、化极 5 泛华北地区航磁ΔT化极上延40 km异常等值线图 向上延拓、化极 6 泛华北地区航磁ΔT化极上延20 km 0°方向水平异常等值线图 向上延拓、方向导数 7 泛华北地区航磁ΔT化极上延20 km 45°方向水平异常等值线图 向上延拓、方向导数 8 泛华北地区航磁ΔT化极上延20 km 90°方向水平异常等值线图 向上延拓、方向导数 9 泛华北地区航磁ΔT化极上延20 km 315°方向水平异常等值线图 向上延拓、方向导数 10 泛华北地区航磁ΔT化极上延20 km垂向导数异常等值线图 向上延拓、方向导数 11 泛华北地区航磁ΔT化极上延20 km导数模异常等值线图 向上延拓、梯度模 12 泛华北地区航磁ΔT化极上延40 km导数模异常等值线图 向上延拓、梯度模 13 泛华北地区航磁ΔT假重力异常等值线图 磁源重力异常 14 泛华北地区深部磁性块体平均深度图 功率谱法 15 泛华北地区航磁ΔT化极上延100 km异常图 向上延拓、化极 注: 表中将原图名中"公里"改为"km". 
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