Comprehensive deep seafloor monitoring system in JAMSTEC

被引：7

作者：

Fujiwara, N ^{[1
]}

Momma, H ^{[1
]}

Kawaguchi, K ^{[1
]}

Iwase, R ^{[1
]}

Kinoshita, H ^{[1
]}

机构：

[1] Japan Marine Sci & Technol, Deep Sea Res Dept, Yokosuka, Kanagawa 237, Japan

来源：

PROCEEDINGS OF THE 1998 INTERNATIONAL SYMPOSIUM ON UNDERWATER TECHNOLOGY | 1998年

关键词：

D O I：

10.1109/UT.1998.670132

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

More than 80% of earthquakes around Japan in every year occur on the seafloor by plate subduction. However, seafloor seismic network is quite few and insufficient. As a step to increase the seafloor seismic network, Comprehensive Seafloor Monitoring System was developed by JAMSTEC. The system consists of observatories with cable named Real-time Seafloor Observatory and without cable named Mobile Seafloor Observatory. The former system was deployed in Nankai Trough off Cape Muroto and started to observation in March 1997. The Real-time Seafloor Observatory consists of two ocean bottom seismometers, two Tsunami pressure gauges, cable end station equipped with multi-sensors and 125 km long optical submarine cable. The monitored and measured data are sent in real-time to the landstation at Muroto and they are also transmitted to JAMSTEC in Yokosuka and Meteorological Agency of Japan. The ocean bottom seismometers, Tsunami pressure gauges and cable end-station of Real-time Seafloor Observatory was laid on the land ward slope of Nankai Trough off Muroto at water depths up to 3572 m. Five similar systems in total will be deployed around Japan.

引用

页码：383 / 388

页数：6