Urban Distributed Acoustic Sensing Using In-Situ Fibre Beneath Bern, Switzerland
dc.contributor.author
Smolinski, Krystyna
dc.contributor.author
Paitz, Patrick
dc.contributor.author
Bowden, Daniel
dc.contributor.author
Edme, Pascal
dc.contributor.author
Kugler, Felix
dc.contributor.author
Fichtner, Andreas
dc.date.accessioned
2021-01-13T09:18:29Z
dc.date.available
2021-01-12T16:26:19Z
dc.date.available
2021-01-13T09:18:29Z
dc.date.issued
2020-05
dc.identifier.other
10.5194/egusphere-egu2020-8225
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/461812
dc.identifier.doi
10.3929/ethz-b-000461812
dc.description.abstract
Anticipating the risks natural hazards pose to an urban environment requires an understanding of the shallow Earth structure of the region. While urban infrastructure often hinders the deployment of a traditional seismic array, Distributed Acoustic Sensing (DAS) technology facilitates the use of existing telecommunication fibre-optic cables for seismic observation, with spatial resolution down to the metre scale.
Through collaboration with the SWITCH foundation, we were able to use existing, in-situ fibres beneath Bern, Switzerland for seismic data acquisition over two weeks, covering a distance of 6 km with a spatial resolution of 2 m. This allowed for not only real-time visualisation of anthropogenic noise sources (e.g. road traffic), but also of the propagation of resulting seismic waves.
Data is analysed in the time and frequency domain to explore the range of signals captured and to assess the consistency of data quality along the cable. The local velocity structure can be constrained using both noise correlations and deterministic signals excited by traffic.
Initial results reveal the ability of DAS to capture signals over a wide range of frequencies and distances, and show promise for utilising urban DAS data to perform urban seismic tomography and hazard analysis.
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Copernicus
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Urban Distributed Acoustic Sensing Using In-Situ Fibre Beneath Bern, Switzerland
en_US
dc.type
Other Conference Item
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
EGUsphere
ethz.pages.start
EGU2020-8225
en_US
ethz.size
1 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.event
EGU General Assembly 2020
en_US
ethz.event.location
Online
en_US
ethz.event.date
May 4-8, 2020
en_US
ethz.notes
Conference lecture held on May 6, 2020. Conference should have been held in Vienna, Austria. Due to the Corona virus (COVID-19) the conference was conducted virtually.
en_US
ethz.publication.place
Göttingen
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03953 - Robertsson, Johan / Robertsson, Johan
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erd- und Planetenwissenschaften / Dep. of Earth and Planetary Sciences::02506 - Institut für Geophysik / Institute of Geophysics::03953 - Robertsson, Johan / Robertsson, Johan
en_US
ethz.date.deposited
2021-01-12T16:26:26Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-01-13T09:18:37Z
ethz.rosetta.lastUpdated
2022-03-29T04:48:38Z
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true
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true
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