라우분지열수광상에서의 심해삼성분자력탐사

Title
라우분지열수광상에서의 심해삼성분자력탐사
Alternative Title
Deep sea three component magnetic survey using ROV in the hydrothermal vent of the Lau Basin
Author(s)
김창환; 박찬홍
Publication Year
2011-12-05
Abstract
We conducted magnetic survey at Apr., 2011 in the western slope of the caldera of TA25, the Lau Basin, the southwestern Pacific using IBRV(Ice Breaker Research Vessel) ARAON of KORDI(Korea Ocean Research and Development Institute), ROV(Remotely Operated Vehicle) of Oceaneering Co. and three component magnetometer(Fig. 1,Fig. 2). The survey area is about 1.1 km by 1.6 km. The deep-sea three component magnetic survey lines are the 13 N-S lines(100 m spacing) and the 2 E-W lines(Fig. 2). The depth ranges of the survey area are from about 900 m to 1200 m, below sea level. For the magnetic survey, the magnetometer sensor and the data logger was attached with the upper part and lower part of ROV, respectively(Fig. 2). We wanted to make the distance between the magnetometer sensor and ROV over 2 m long to reduce the noise effect of ROV. But, for the safe of deployment and recovery of ROV, the distance between the magnetometer sensor and ROV was 126 cm(Fig. 2). In the magnetic survey, ROV followed the planning tracks at 25~30 m above seafloor using the altimeter and USBL(Ultra Short Base Line) of ROV. IBRV ARAON accompanied ROV on the magnetic survey. The three component magnetometer measure the X(North), Y(East) and Z(Vertical) vector components of a magnetic field. A motion sensor(Oxtans) provided us the data of pitch, roll, yaw for the correction of the magnetic data to the motion of ROV. T
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/28001
Bibliographic Citation
2011 American Geophysical Union Fall Meeting, pp.1 - 2, 2011
Publisher
American Geophysical Union
Type
Conference
Language
English
Publisher
American Geophysical Union
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