Separation and location of microseism sources

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Title: Separation and location of microseism sources
Authors: Moni, Aishwarya
Craig, David
Bean, Christopher J.
Permanent link: http://hdl.handle.net/10197/4681
Date: 20-Jun-2013
Abstract: Microseisms are ground vibrations caused largely by ocean gravity waves. Multiple spatially separate noise sources may be coincidentally active. A method for source separation and individual wavefield retrieval of microseisms using a single pair of seismic stations is introduced, and a method of back azimuth estimation assuming Rayleigh-wave arrivals of microseisms is described. These methods are combined to separate and locate sources of microseisms in a synthetic model and then applied to field microseismic recordings from Ireland in the Northeast Atlantic. It is shown that source separation is an important step prior to location for both accurate microseism locations and microseisms wavefield studies.
Type of material: Journal Article
Publisher: Wiley
Copyright (published version): 2013 American Geophysical Union
Keywords: Microseisms;Source separation
DOI: 10.1002/grl.50566
Language: en
Status of Item: Peer reviewed
Appears in Collections:Earth Sciences Research Collection

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