New methods of controlled-source electromagnetic detection in China

Abstract

As an important branch of geophysical exploration method, the electromagnetic method with artificial source has advanced rapidly in the past decade. These methods are classified as airborne electromagnetic method, ground-air electromagnetic method, ground electromagnetic method, and marine electromagnetic method. Over the years, researchers in China have made significant improvement to the fundamental theory, forward modeling and inverse for series of electromagnetic detection methods. Conversely, significant progress was made in the development of corresponding equipment. The researched techniques and their developed equipment have been successfully utilized to detect underground targets as deep as 10 km. However, there is increasing need for deep resources exploration, urban subsurface study, and prediction, monitoring and detection of geological hazards. To meet the increasing need and catch up with the advanced international level of exploration technologies and developed equipment, there is urgent necessity and requirement to continue developing geophysical methods and the corresponding equipment.

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Acknowledgements

This work was supported by the Beijing Science and Technology Plan (Grant No. Z181100005718001), the National Key R & D Program (Grant No. 2017YFC0601204), and the National Natural Science Foundation of China (Grant Nos. 41874088 & 41830101).

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Correspondence to Guoqiang Xue.

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Di, Q., Xue, G., Yin, C. et al. New methods of controlled-source electromagnetic detection in China. Sci. China Earth Sci. (2020). https://doi.org/10.1007/s11430-019-9583-9

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Keywords

  • Controlled-source
  • Electromagnetic method
  • Multiscale
  • Deep earth detection