Abstract
An improved TEM all-time apparent resistivity is proposed. Firstly, we give its definition. Its definition at time t(i) is the comprehensive resistivity of the zone from Depth(i − 1) to infinity, where, Depth(i − 1) is the maximum TEM field diffusion distance at time t(i − 1). Then, we give its algorithm based on the binary search algorithm. Finally, a half-space model and a whole-space model are constructed to test the proposed method. The traditional all-time apparent resistivity and the improved all-time apparent resistivity are calculated respectively by using the models built above. The results show that compared with traditional method, the improved all-time apparent resistivity is more fit to the theatrical model, and have higher precision and resolution.
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Reference
Li F, Tan Q, Liu DM, Zhang JG, et al., 2014, Whole-space inversion of mine transient electromagnetic method based on Mirror model: Journal of North China Institute of Science and Technology, 11, 15–19.
Acknowledgment
The research presented in this paper is supported by the Fundamental Research Funds for the Central Universities (No. 3142015019), Colleges and universities in Hebei province science and technology research project (No. ZC2016036, BJ201603) and Natural Science Foundation of China (Grand No. 51504097).
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Li, F., Yin, S., Liu, D., Han, Y., Hua, S., Chen, P. (2017). Definition and Improved Algorithm of All-Time TEM Apparent Resistivity. In: Di, Q., Xue, G., Xia, J. (eds) Technology and Application of Environmental and Engineering Geophysics. Springer Geophysics. Springer, Singapore. https://doi.org/10.1007/978-981-10-3244-8_2
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DOI: https://doi.org/10.1007/978-981-10-3244-8_2
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