Research using seismic waves for orientation of the Ocean - Bottom Seismographs
Abstract
Orientation of the Ocean-Bottom Seismograph (OBS) devices is an important task that must complete before using these data. While the OBS direction is determined correctly, we can correct the rotation angle of the coordinate system so that we obtain the maximum amplitude seismic signals for different seismic waves. In this article, we present the method using seismic waves to determine the direction of the OBS. The results obtained from 11 OBSs in the East Sea show that these stations have misdirected from different angles. This method has advantage with high reliability. Specially, we can widely apply for the OBS devices in other oceans.References
Audet, P., (2016). Receiver functions using OBS data: Promises and limitations from numerical modelling and examples from the Cascadia Initiative. Geophysical Journal International, 205(3), 1740-1755.
Baker, G. E., & Stevens, J. L., (2004). Backazimuth estimation reliability using surface wave polarization. Geophysical research letters, 31(9).
Bell, S. W., Forsyth, D. W., & Ruan, Y., (2015). Removing noise from the vertical component records of ocean-bottom seismometers: Results from year one of the cascadia initiative. Bulletin of the Seismological Society of America, 105(1), 300-313.
Briais, A., Patriat, P., & Tapponnier, P., (1993). Updated interpretation of magnetic anomalies and seafloor spreading stages in the south China Sea: Implications for the Tertiary tectonics of Southeast Asia. Journal of Geophysical Research, 98(B4), 6299-6328.
Brillon, C., Cassidy, J. F. & Dosso, S. E., (2013). Onshore/offshore structure of the Juan de Fuca plate in northern Cascadia from Bayesian receiver function inversion. Bulletin of the Seismological Society of America, 103(5), 2914-2920.
Crawford, W. C. & Webb, S. C., (2000). Identifying and Removing Tilt Noise from Low Frequency (<0.1Hz) Seafloor Vertical Seismic Data. Bulletin of the Seismological Society of America, 90(4), 952-963.
Dahm, T., Tilmann, F. & Morgan, J. P., (2006). Seismic broadband ocean - bottom data and noise observed with free - fall stations: Experiences from long - term deployments in the North Atlantic and the Tyrrhenian Sea. Bulletin of the Seismological Society of America, 96(2), 647-664.
Forsyth, D. W. & Li, A., (2005). Array analysis of two‐dimensional variations in surface wave phase velocity and azimuthal anisotropy in the presence of multipathing interference. Seismic Earth: Array Analysis of Broadband Seismograms, 81 - 97.
Forsyth, D. W., Webb, S. C., Dorman, L. M. and Shen, Y., (1998). Phase velocities of Rayleigh waves in the MELT experiment on the East Pacific Rise, Science, 280,1235 - 1238.
Hung, T. D., Yang, T., Le, B. M. & Yu, Y., (2019). Effects of Failure of the Ocean‐Bottom Seismograph Leveling System on Receiver Function Analysis. Seismological Research Letters, 90(3), 1191-1199.
Le, B. M., Yang, T., Chen, Y. J. & Yao, H., (2018). Correction of OBS clock errors using Scholte waves retrieved from cross - correlating hydrophone recordings. Geophysical Journal International, 212(2), 891-899.
Li, C., Xu, X., Lin, J., Sun, Z., Peleo-Alampay, A., & Tejada, M., (2014). Ages and magnetic structures of the South China Sea constrained by deep tow magnetic surveys and IODP Expedition 349. Geochemistry, Geophysics, Geosystems, 15(12), 4958-4983.
Liu, C., Qingfeng Hua, Y. P., Yang, T., Xia, S., Le, B. M., Huo, D. & Huang, Fang Liu, H., (2014). Passive - source ocean bottom seismograph (OBS) array experiment in South China Sea and data quality analyses. Chinese Science Bulletin, 59, 4524-4535.
Montagner, J. P., Romanowicz, B., Bouaricha, S., Lognonne, P., Roult, G., Thirot, J. L., ,... & Floc'h, H., (1994). The French pilot experiment OFM - SISMOBS: first scientific results on noise level and event detection. Physics of the earth and planetary interiors, 84(1), 321 - 336.
Ramachandran, K., Hyndman, R. D. & Brocher, T. M., (2006). Regional P wave velocity structure of the Northern Cascadia Subduction Zone. Journal of Geophysical Research: Solid Earth, 111(12), 1-15.
Stachnik, J. C., Sheehan, A. F., Zietlow, D. W., Yang, Z., Collins, J. & Ferris, A., (2012). Determination of New Zealand ocean bottom seismometer orientation via Rayleigh - wave polarization. Seismological Research Letters, 83(4), 704 - 713.
