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GI | Articles | Volume 8, issue 2
Geosci. Instrum. Method. Data Syst., 8, 265–276, 2019
https://doi.org/10.5194/gi-8-265-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Geosci. Instrum. Method. Data Syst., 8, 265–276, 2019
https://doi.org/10.5194/gi-8-265-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 24 Sep 2019

Research article | 24 Sep 2019

Evaluations of an ocean bottom electro-magnetometer and preliminary results offshore NE Taiwan

Ching-Ren Lin et al.
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Cited articles  
Bertrand, E., Unsworth, M., Chiang, C. W., Chen, C. S., Chen, C. C., Wu, F., Turkoglu, E., Hsu, H. L., and Hill, G.: Magnetotelluric evidence for thick-skinned tectonics in central Taiwan, Geology, 37, 711–714, 2009. 
Bertrand, E. A., Unsworth, M. J., Chiang, C. W., Chen, C. S., Chen, C. C., Wu, F. T., Turkoglu, E., Hsu, H. L., and Hill, G. J.: Magnetotelluric imaging beneath the Taiwan orogen: An arc-continent collision, J. Geophys. Res.-Sol. Ea., 117, B01402, https://doi.org/10.1029/2011JB008688, 2012. 
Chiang, C. W., Unsworth, M. J., Chen, C. S., Chen, C. C., Lin, A. T. S., and Hsu, H. L.: Fault zone resistivity structure and monitoring at the Taiwan Chelungpu Drilling Project (TCDP), Terr. Atmos. Ocean Sci., 19, 473–479, 2008. 
Chiang, C. W., Chen, C. C., Unsworth, M., Bertrand, E., Chen, C. S., Thong, D. K., and Hsu, H. L.: The deep electrical structure of southern Taiwan and its Tectonic Implications, Terr. Atmos. Ocean Sci., 21, 879–895, 2010. 
Chiang, C. W., Chen, C. C., Unsworth, M., Bertrand, E., Chen, C. S., Kieu, T. D., and Hsu, H. L.: Corrigendum to “The deep electrical structure of southern Taiwan and its tectonic implications”, Terr. Atmos. Ocean Sci., 22, 371–371, 2011. 
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The first stage of field experiments involving the design and construction of a low power-consumption ocean bottom electro-magnetometer (OBEM) has been completed: this can be deployed more than 180 d on the seafloor with a time drift of less than 0.95 ppm. We found that the inclinations and magnetic data of the OBEM varied with two observed earthquakes when compared to the OBS data. The potential fields of the OBEM were slightly, but not obviously, affected by the earthquakes.
The first stage of field experiments involving the design and construction of a low...
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