地球与行星物理论评（中英文）2024，Vol.55Issue(6)：681-692,12.DOI:10.19975/j.dqyxx.2024-008
全球岩石圈磁异常模型研究进展与挑战
Progress and challenges in modeling global lithospheric magnetic anomalies
摘要
Abstract
Over the past 50 years,extensive airborne and oceanic magnetic survey data collection efforts have resulted in the almost complete coverage of near-surface magnetic survey data worldwide.National and interconti-nental magnetic anomaly maps have also been generated.Advancements in satellite magnetic field measurements,such as those from CHAllenging Minisatellite Payload(CHAMP),provided longwave magnetic anomaly back-grounds on a global scale.This has led to the realization of global magnetic anomaly grids with arcminute resolu-tions,such as the World Digital Magnetic Anomaly Map(WDMAM).Utilizing these datasets,spherical harmonic coefficient models such as the NGDC-720 model have been established for lithospheric magnetic fields.The glob-al lithospheric magnetic anomaly model has progressed considerably;for example,the shortest wavelengths reflec-ted in the spatial resolution have improved from hundreds of kilometers to tens of kilometers.However,modeling still faces major challenges;for example,the accuracy of the model remains low,amounting to a few hundred nano-tesla.In this study,we provide a comprehensive review of the techniques for compiling magnetic anomalies at vari-ous scales and discuss the key methodologies for processing and compiling them.Furthermore,we address the complexities involved in modeling the global lithospheric magnetic field.Our objective was to address the short-comings of lithospheric magnetic anomaly modeling and develop a high-precision,independent,and controllable lithospheric magnetic field model for China.关键词
近地表磁测/卫星磁测/岩石圈磁场/磁异常图/球谐分析Key words
near-surface magnetic surveys/satellite magnetic measurements/lithospheric magnetic field/mag-netic anomaly map/spherical harmonic analysis分类
地球科学引用本文复制引用
骆遥,李敬敏,郑金鑫,杨雪,尹航,张文志,孟庆奎,李冰,王林飞..全球岩石圈磁异常模型研究进展与挑战[J].地球与行星物理论评（中英文）,2024,55(6):681-692,12.基金项目
国家重点研发计划项目(2023YFB3907703,2017YFC0602000) （2023YFB3907703,2017YFC0602000）
中国地质调查项目(DD20191001)Supported by the National Key Research and Development Program of China(Grant Nos.2023YFB3907703,2017YFC0602000)and China Geological Survey Project(Grant No.DD20191001) （DD20191001）
