DocumentCode :
3213299
Title :
Observation of the seafloor acoustic ranging system
Author :
Osada, Y. ; Kido, M. ; Fujimoto, H.
Author_Institution :
RCPEV, Tohoku Univ., Sendai, Japan
fYear :
2011
fDate :
5-8 April 2011
Firstpage :
1
Lastpage :
5
Abstract :
We developed the seafloor acoustic ranging system to monitor the seafloor crustal movement. In 2008 September we carried out an observation to monitor the active splay faults on Kumano-Nada prism slope. We deployed three PXPs with about 925 m (M1-S2 baseline) and 725 m (M1-S2 base line) spacing at the depth of 2880 m. We recovered three PXPs in 2010 August. Data set is the acoustic measurement for 6 month and the pressure measurement for 18 month In March 2009, very low frequency earthquake activity near the experiment area was observed by OBSs, which was deployed by JAMSTEC and ERI. We didn´t observe the change of baselines in this system. Therefore we have a assumption that there was no crustal movement that exceeds the detection sensitivity in this event.
Keywords :
acoustic measurement; earthquakes; pressure measurement; seafloor phenomena; ERI; JAMSTEC; Kumano-Nada prism slope; M1-S2 baseline; PXP; acoustic measurement; active splay faults; earthquake activity; pressure measurement; seafloor acoustic ranging system; seafloor crustal movement monitor; Acoustic measurements; Acoustics; Distance measurement; Earthquakes; Ocean temperature; Sea measurements; Temperature measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Underwater Technology (UT), 2011 IEEE Symposium on and 2011 Workshop on Scientific Use of Submarine Cables and Related Technologies (SSC)
Conference_Location :
Tokyo
Print_ISBN :
978-1-4577-0165-8
Type :
conf
DOI :
10.1109/UT.2011.5774110
Filename :
5774110
Link To Document :
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