Passive Seismic Observations of a glacier surge: Turner Glacier, Alaska, USA ...
We will deploy up to six pairs of three-component broadband passive seismic stations along the margins of Turner Glacier. Five more intermediate-period geophones will be installed on the glacier surface (stations from the University of Idaho). Each glacier-adjacent pair will be orientated normal to...
| Main Authors: | , , , , |
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| Format: | Dataset |
| Language: | unknown |
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International Federation of Digital Seismograph Networks
2020
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.7914/sn/yg_2020 https://www.fdsn.org/networks/detail/YG_2020/ |
| Summary: | We will deploy up to six pairs of three-component broadband passive seismic stations along the margins of Turner Glacier. Five more intermediate-period geophones will be installed on the glacier surface (stations from the University of Idaho). Each glacier-adjacent pair will be orientated normal to the glacier flow, with one station on each side of the glacier and installed on bedrock or shallow sediment. Continuous broadband seismic data will be recorded at 100 Hz for the duration of the field deployment. This configuration will allow us to replicate the surface wave anisotropy study by Zhan (2019). Zhan (2019) used seismic noise to interrogate the subglacial drainage system of a surging glacier and found that changes in mechanical coupling between the ice and the glacial bed not only affects ice flow, but also the overall (poro)elastic properties of the ice‐water‐till‐bedrock system. From observations of seismic noise and the corresponding frequency-dependent surface-wave anisotropy, Zhan (2019) was able ... |
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