NDLI: Ocean Bottom Gravity Meter

Content Provider	IEEE Xplore Digital Library
Author	Nakano, I. Emura, T. Gentaro Kai Tomoda, Y. Fujimoto, H.
Copyright Year	1986
Description	Author affiliation: Japan Marine Science and Technology Center, Yokosuka, Japan (Nakano, I.)
Abstract	An ocean bottom gravity meter was designed and built to measure gravity at the ocean floor in order to detect up-and-down motions of the sea bottom and density changes in the oceanic crust corresponding to changes preceding a strong earthquake. The gravity sensor is a vibrating-string gravimeter based on the TSSG surface ship gravity meter. The gravity meter was consisted of an underwater part, a land station and an underwater cable. Measured data was transmitted continuously from the sea bottom to the land by means of an optical fiber cable which contains six optical fibers embedded in a grooved aluminum line. The test of the gravity meter was carried out on the bottom in the shallow water at a depth of about 30 meters. The gravity meter had operated in a good condition and measured gravity changes for more than two months.
Starting Page	502
Ending Page	506
File Size	366493
Page Count	5
File Format	PDF
DOI	10.1109/OCEANS.1986.1160460
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1986-09-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gravity measurement Sea measurements Earth Seismic measurements Ocean temperature Earthquakes Sea surface Tides Marine vehicles Optical fibers
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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