Analysis of critical parameters in the field acquisition of short-offset transient electromagnetic data
CHEN Wei-Ying1,2,3(), XUE Guo-Qiang1,2,3, LI Hai1,2,3
1. Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 2. Institutions of Earth Science, Chinese Academy of Sciences, Beijing 100029, China 3. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
The grounded-source short-offset transient electromagnetic (SOTEM) method involves many parameters in field data acquisition. The selection of these parameters is closely associated with the signal quality and detection sensitivity of measured data. Based on the relevant provisions in the organization standard, Technical specification for grounded-source short-offset transient electromagnetic method (T/CGS 002—2021), issued by the Chinese Geophysical Society, numerical emulations, and practical cases, this study analyzed and expounded the selection criteria of critical parameters like transmitting source length, transmitting fundamental frequency, offset, device type, and observation component. The insights obtained in this study are significant for guiding the field construction of the SOTEM device and leveraging its detection performance.
陈卫营, 薛国强, 李海. SOTEM野外数据采集中的关键参数分析[J]. 物探与化探, 2024, 48(5): 1169-1175.
CHEN Wei-Ying, XUE Guo-Qiang, LI Hai. Analysis of critical parameters in the field acquisition of short-offset transient electromagnetic data. Geophysical and Geochemical Exploration, 2024, 48(5): 1169-1175.
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