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A new approach for mobile and expandable real-time deep seafloor observation - adaptable observation system

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5 Author(s)
Kawaguchi, K. ; Deep Sea Res. Dept., Japan Marine Sci. & Technol. Center, Kanagawa, Japan ; Hirata, K. ; Nishida, T. ; Obana, S.
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Although submarine cable in-line seafloor observation systems are very effective tools for real-time/long-term geo-scientific measurements,, there are technological difficulties for deploying as many sensors as on land. To solve this problem, JAM-STEC developed an expandable and replaceable satellite measurement station called the adaptable observation system (AOS). The AOS is a battery operated mobile observatory connected to the backbone cable system by a 10 km long thin fiber cable to ensure real-time data recovery. The system consists of a branching system, a junction box, a fiber cable, and a battery system for a six-month operation. Installation and construction of the AOS will be conducted by a towed vehicle and an ROV. A thin fiber cable-laying system was developed and tested for practical operation. This observation system provides a chance to extend existing seafloor networks from an in-line area to a wider area

Published in:

Oceanic Engineering, IEEE Journal of  (Volume:27 ,  Issue: 2 )