Abstract
Relocation of the ocean-bottom seismometer (OBS) is a basic step for subsequent inversion of stratigraphic structure. Obtaining sufficient and accurate position information is crucial to the final velocity model. We propose a new OBS relocation method using direct-wave arrival time information and accurate bathymetric data to provide a better starting of seismic velocity tomography. The new method consists of three steps. The first step is to determine the projection position of OBS on the shooting line according to the symmetry of the time-distance curve under the same yaw distance (the distance between ship’s position and the shooting line to the left or right). Next, the depth node closest to the observation time is found in the depth profile as the initial position of OBS in the direction perpendicular to the shooting line, based on the projection position. Finally, the final position of the OBS is determined by gradient grid search with the depth node as the center. In this paper, the feasibility of the proposed method is verified by experiments on model data. Then, the method is used to relocate 8 OBSs in the Southwest Pacific Ocean. The results show that the offset between the deployment position and relocation position is 50–500 m, with an average of 206 m.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ao W, Zhao MH, Qiu XL, Li JB, Zhang JZ (2010) The correction of shot and OBS position in the 3D seismic experiment of the SW Indian Ocean Ridge. Chin J Geophys 53(6):1072–1081. https://doi.org/10.1002/cjg2.1577
Benazzouz O, Pinheiro LM, Matias LM, Afilhado A, Herold D, Haines SS (2018) Accurate ocean bottom seismometer positioning method inspired by multilateration technique. Math Geosci 50(5):569–584
Chen HH, Wang CC (2007) Optimal localization of a seafloor transponder in shallow water using acoustic ranging and GPS observations. Ocean Eng 34(17–18):2385–2399. https://doi.org/10.1016/j.oceaneng.2007.05.005
Christeson G (1995) OBSTOOL: software for processing UTIG OBS data. Institute for Geophysics, Austin
Creager KC, Dorman LM (1982) Location of instruments on the seafloor by joint adjustment of instrument and ship positions. J Geophys Res Solid Earth 87(B10):8379–8388. https://doi.org/10.1029/JB087iB10p08379
Del Grosso VA (1974) New equation for the speed of sound in natural waters (with comparisons to other equations). J Acoust Soc Am 56(4):1084–1091. https://doi.org/10.1121/1.1903388
Du F, Zhang J, Yang F, Zhao M, Wang Q, Qiu X (2018) Combination of least square and Monte Carlo methods for OBs relocation in 3D seismic survey near Bashi channel. Mar Geodesy 41(5):494–515. https://doi.org/10.1080/01490419.2018.1479993
Han Y, Wang X (2017) Relocating ocean-bottom seismometers. Indian J Mar Sci 46(3):462–465
Liu H, Wang Z, Zhao S, He K (2019) Accurate multiple ocean bottom seismometer positioning in shallow water using GNSS/acoustic technique. Sensors 19(6):1406. https://doi.org/10.3390/s19061406
Liu B, Wang X, Xu Y, Wen P, Li L, Zhang H (2020) A complex gas hydrate system imaged jointly using MCS and OBS data from the northern South China Sea. Mar Geophys Res 41(4):1–15
Mackenzie KV (1981) Nine-term equation for sound speed in the oceans. J Acoust Soc Am 70(3):807–812. https://doi.org/10.1121/1.386920
Maleika W (2020) Inverse distance weighting method optimization in the process of digital terrain. Appl Geomat 12(4):397–407. https://doi.org/10.1007/s12518-020-00307-6
Mànuel A, Roset X, Rio JD, Toma DM, Carreras N, Panahi SS, Cadena J (2012) Ocean bottom seismometer: design and test of a measurement system for marine seismology. Sensors 12(3):3693–3719. https://doi.org/10.3390/s120303693
Nakamura Y, Donoho PL, Roper PH, McPherson PM (1987) Large-offset seismic surveying using ocean-bottom seismographs and air guns: instrumentation and field technique. Geophysics 52(12):1601–1611
Oshida A, Kubota R, Nishiyama E, Ando J, Kasahara J, Nishizawa A, Kaneda K (2008) A new method for determining OBS positions for crustal structure studies, using airgun shots and precise bathymetric data. Explor Geophys 39(1):15–25. https://doi.org/10.1071/EG08005
Osler J, Beer J (2000) Real-time localization of multiple acoustic transponders using a towed interrogation transducer. IEEE Xplore 1:725–732. https://doi.org/10.1109/OCEANS.2000.881338
Sambolian S, Gorszczyk A, Operto S, Ribodetti A, Tavakoli F, B (2021) Mitigating the ill-posedness of first-arrival traveltime tomography using slopes: application to the eastern Nankai Trough (Japan) OBS data set. Geophys J Int 227(2):898–921. https://doi.org/10.1093/gji/ggab262
Senkaya M, Karsli H (2014) A semi-automatic approach to identify first arrival time: the cross-correlation technique (CCT). Earth Sci Res J 18(2):107–113
Shiobara H, Nakanishi A, Shimamura H, Mjelde R, Kanazawa T, Berg EW (1997) Precise positioning of ocean bottom seismometer by using acoustic transponder and CTD. Mar Geophys Res 19(3):199–209
Tong CH, Barton PJ, White RS, Sinha MC, Singh SC, Pye JW, Orcutt JA (2003) Influence of enhanced melt supply on upper crustal structure at a mid-ocean ridge discontinuity: a three-dimensional seismic tomographic study of 9° N East Pacific Rise. J Geophys Res Solid Earth. https://doi.org/10.1029/2002JB002163
Wang YL, Yan P, Zheng HB, Lu XY (2007) Timing and positioning corrections of ocean bottom seismograph data. J Trop Oceanogr 26(05):40–46
Watremez L, Helen Lau KW, Nedimović MR, Louden KE (2015) Traveltime tomography of a dense wide-angle profile across Orphan Basin. Geophysics 80(3):B69–B82. https://doi.org/10.1190/geo2014-0377.1
Xue B, Ruan AG, Li XY, Wu ZL (2008) The seismic data corrections of short period auto-floating ocean bottom seismometer. J Mar Sci 26(2):98102
Yasukawa H, Sakuno R (2020) Application of the MMG method for the prediction of steady sailing condition and course stability of a ship under external disturbances. J Mar Sci Technol 25(1):196–220
Zhang G, Zhang C, Xie Z (2013) A decision making support system for ocean-bottom seismometer position based on GIS. Proc Comput Sci 18:2454–2457. https://doi.org/10.1016/j.procs.2013.05.421
Zhao M, Du F, Wang Q, Qiu X, Fan C (2018) Current status and challenges for three-dimensional deep seismic survey in the south china sea. Earth Sci 43(10):3749–3761. https://doi.org/10.3799/dqkx.2018.573
Acknowledgements
Data and samples were collected onboard of R/V “Kexue”, implementing the open research cruise NORC2020-581 supported by NSFC Shiptime Sharing Project (Project Number: 41949581), and Major Research Plan on West-Pacific Earth System Multispheric Interactions (Project Number: 91858215, 91958206), and the Key Research and Development Program of Shandong Province (Grant No. 2019GHY112019).
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Liu, H., Liu, H., Xing, L. et al. A new method for OBS relocation using direct water-wave arrival times from a shooting line and accurate bathymetric data. Mar Geophys Res 43, 20 (2022). https://doi.org/10.1007/s11001-022-09482-0
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11001-022-09482-0