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  Combined Large-NSeismic Arrays and DAS Fiber Optic Cables across the Hengill Geothermal Field, Iceland

Obermann, A., Sánchez-Pastor, P., Wu, S.-M., Wollin, C., Baird, A. F., Isken, M. P., Clinton, J., Goertz-Allmann, B. P., Dahm, T., Wuestefeld, A., Shi, P., Lanza, F., Gyger, L., Wetter, S., Hjörleifsdóttir, V., Langet, N., Brynjarsson, B., Jousset, P., Wiemer, S. (2022): Combined Large-NSeismic Arrays and DAS Fiber Optic Cables across the Hengill Geothermal Field, Iceland. - Seismological Research Letters, 93, 5, 2498-2514.
https://doi.org/10.1785/0220220073

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Obermann, Anne1, Autor
Sánchez-Pastor, Pilar1, Autor
Wu, Sin-Mei1, Autor
Wollin, Christopher2, Autor              
Baird, Alan F.1, Autor
Isken, Marius Paul3, Autor              
Clinton, John1, Autor
Goertz-Allmann, Bettina P.1, Autor
Dahm, T.3, Autor              
Wuestefeld, Andreas1, Autor
Shi, Peidong1, Autor
Lanza, Federica1, Autor
Gyger, Lea1, Autor
Wetter, Selina1, Autor
Hjörleifsdóttir, Vala1, Autor
Langet, Nadege1, Autor
Brynjarsson, Baldur1, Autor
Jousset, P.2, Autor              
Wiemer, Stefan1, Autor
Affiliations:
1External Organizations, ou_persistent22              
22.2 Geophysical Imaging of the Subsurface, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_66027              
32.1 Physics of Earthquakes and Volcanoes, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146029              

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 Zusammenfassung: From June to August 2021, we deployed a dense seismic nodal network across the Hengill geothermal area in southwest Iceland to image and characterize faults and high‐temperature zones at high resolution. The nodal network comprised 498 geophone nodes spread across the northern Nesjavellir and southern Hverahlíð geothermal fields and was complemented by an existing permanent and temporary backbone seismic network of a total of 44 short‐period and broadband stations. In addition, we recorded distributed acoustic sensing data along two fiber optic telecommunication cables near the Nesjavellir geothermal power plant with commercial interrogators. During the time of deployment, a vibroseis survey took place around the Nesjavellir power plant. Here, we describe the network and the recorded datasets. Furthermore, we show some initial results that indicate a high data quality and highlight the potential of the seismic records for various follow up studies, such as high‐resolution event location to delineate faults and body‐ and surface‐wave tomographies to image the subsurface velocity structure in great detail.

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 Datum: 2022-07-132022
 Publikationsstatus: Final veröffentlicht
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1785/0220220073
GFZPOF: p4 T3 Restless Earth
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Titel: Seismological Research Letters
Genre der Quelle: Zeitschrift, SCI, Scopus
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 93 (5) Artikelnummer: - Start- / Endseite: 2498 - 2514 Identifikator: CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/journals447
Publisher: Seismological Society of America (SSA)