Development of laser tsunami-meter

Author

Sakata, Shoji ; Gubin, M.A. ; Araya, Akito ; Tsuboi, Daisuke

Author_Institution

Nat. Res. Inst. for Earth Sci. & Disaster Prevention, Ibaraki, Japan

fYear

2003

fDate

25-27 June 2003

Firstpage

71

Lastpage

74

Abstract

Real time observation of tsunami wave heights in off-shore areas by tsunami-meters on the sea floor would be very important for mitigation of tsunami-disasters. An innovative laser tsunami-meter, which could be applied to this purpose, has been under development. This tsunami-meter uses precision measurements by laser interferometry, which was adopted in development of borehole laser strainmeter of the Sakata-Gubin type. This instrument has advantages over conventional quartz oscillator type instruments, namely, low cost of production and installation, low maintenance cost, higher precision and long-term reliability.

Keywords

disasters; light interferometry; measurement by laser beam; ocean waves; oceanographic equipment; tsunami; Sakata-Gubin type; laser interferometry; laser strainmeter; laser tsunami-meter; sea floor; tsunami wave heights; tsunami-disasters; Costs; Instruments; Interferometry; Maintenance; Measurement by laser beam; Oscillators; Production; Sea floor; Sea measurements; Tsunami;

fLanguage

English

Publisher

ieee

Conference_Titel

Scientific Use of Submarine Cables and Related Technologies, 2003. The 3rd International Workshop on

Conference_Location

Tokyo, Japan

Print_ISBN

0-7803-7775-3

Type

conf

DOI

10.1109/SSC.2003.1224113

Filename

1224113