https://scholars.lib.ntu.edu.tw/handle/123456789/632637
標題: | Characterize Basin-Scale Subsurface Using Rocket-Triggered Lightning | 作者: | YU-LI WANG Yeh, Tian Chyi Jim Liu, Fei Wen, Jet Chau Wang, Wenke Hao, Yonghong |
關鍵字: | WAVE-FORM INVERSION; ELECTROMAGNETIC DATA; HYDRAULIC TOMOGRAPHY; SENSITIVITY ANALYSIS; 3D INVERSION; FREQUENCY; TRANSPORT; RESERVOIR; FIELD; HEAD | 公開日期: | 16-十二月-2022 | 出版社: | AMER GEOPHYSICAL UNION | 卷: | 49 | 期: | 23 | 來源出版物: | Geophysical Research Letters | 摘要: | This paper exploits triggered lightning as a point source for the basin-scale electromagnetic tomographic survey to image 3-D subsurface electrical properties in basins. This paper further develops a new temporal moment approach, overcoming the difficulties in forward and inverse modeling of 3-D Maxwell’s equations with heterogeneous parameter fields. Using this approach, we find that the influence of a single triggered lightning strike covers a radius of 20–70 km with detectable signals. The cross-correlation analysis between the moment difference of the electric and electric/magnetic property field indicates that the approach is suitable for mapping subsurface electric conductivity ((Formula presented.)) heterogeneity. A numerical experiment with 3-D spatially random parameter fields demonstrates that the method captures the spatial distribution of electric conductivity over large areas with a sparse monitoring network. It reveals the potential of using triggered lightning as a basin-scale electric/magnetic tomography survey. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144518552&doi=10.1029%2f2022GL101278&partnerID=40&md5=b607d9777d77872f0ff95ecd9dc50dc9 https://scholars.lib.ntu.edu.tw/handle/123456789/632637 |
ISSN: | 00948276 | DOI: | 10.1029/2022GL101278 |
顯示於: | 生物環境系統工程學系 |
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