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Seismic and hydroacoustic sensing of infrasonic noise in coastal waters

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Abstract
Three-component ocean-bottom seismometers with radio links have been deployed in coastal waters to investigate natural and man-made noise at extremely low frequencies. Seismograms from one or up to three sensor stations are analyzed in terms of amplitude and cross-spectra at frequencies between 1 and 18 Hz. Examples of area dependence and wind dependence are given, and the underlying propagation mechanism is investigated. Finally ship-radiated noise is used to demonstrate the directional selectivity of those sensor units.

URI
http://hdl.handle.net/20.500.12489/75

Report Number
CP-32/1

Source
In: Underwater Ambient Noise (SACLANTCEN Conference Proceedings CP-32), Vol. 2, Part 1, 1982, pp. 5-1 - 5-12.

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Date
1982/06

Author(s)
Schmalfeldt, Bernd
; 
Rauch, Dieter

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CP-32_Vol2_Part1_Schmalfeldt_SeismicHydroacousticSensing.pdf (1.369Mb)

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