Project SEAMSTRESS: DEPAS ocean-bottom seismometer operations on Vestnesa Ridge in 2020-2021 ...

This ocean-bottom seismometer deployment is part of the SEAMSTRESS project examining tectonic stress effects on Arctic methane seepage. The project is led by PI Andreia Plaza-Faverola at the Centre for Arctic Gas Hydrates, University of Tromsö, Norway.A total of 10 ocean bottom seismometers (OBS) we...

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Bibliographic Details
Main Authors: Plaza-Faverola, Andreia, Domel, Przemyslaw, Bünz, Stefan, Schmidt-Aursch, Mechita, Schlindwein, Vera
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
DEPAS
ocean-bottom seismometer
Passive seismology
Vestnesa Ridge
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LATITUDE
LONGITUDE
ELEVATION
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Ocean bottom seismometer
Centre for Arctic Gas Hydrate, Environment and Climate CAGE
Tectonic stress effects on Arctic methane seepage SEAMSTRESS
Arctic
Knipovich Ridge
Molloy
Arctic Gas Hydrate, Environment and Climate
arctic methane
Online Access:https://dx.doi.org/10.1594/pangaea.952424
https://doi.pangaea.de/10.1594/PANGAEA.952424
Description
Summary:This ocean-bottom seismometer deployment is part of the SEAMSTRESS project examining tectonic stress effects on Arctic methane seepage. The project is led by PI Andreia Plaza-Faverola at the Centre for Arctic Gas Hydrates, University of Tromsö, Norway.A total of 10 ocean bottom seismometers (OBS) were deployed on Vestnesa Ridge, a sediment drift body just north Knipovich Ridge at its intersection with the Molloy Transform fault (cruise CAGE-20-5). The aim of the experiment was to look for stress release along faults that control seepage sites on Vestnesa Ridge. The network consisted of 8 Lobster type broadband OBS from the German Instrument Pool for Amphibian Seismology (DEPAS) and 2 3C geophones provided by the University of Tromsö. Instruments were free-fall deployed and spaced by about 10 km. They recorded continuously at 100 Hz for 11 months between August 2020 and July 2021.Short, intersecting refraction profiles were shot across all OBS stations, such that OBS positions at the seafloor could be ...

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