BEAMISH
In this project we will address significant aspects of ice stream flow and West Antarctic Ice Sheet stability. Our aims are to provide an observational basis for understanding the fast ice stream flow mechanism and to interpret ice sheet history. Using a hot-water drill we will penetrate an ice stre...
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International Federation of Digital Seismograph Networks
2016
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Online Access: | https://dx.doi.org/10.7914/sn/9b_2016 https://www.fdsn.org/networks/detail/9B_2016/ |
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ftdatacite:10.7914/sn/9b_2016 2023-05-15T13:33:24+02:00 BEAMISH Alex Brisbourne Andy Smith 2016 SEED data https://dx.doi.org/10.7914/sn/9b_2016 https://www.fdsn.org/networks/detail/9B_2016/ unknown International Federation of Digital Seismograph Networks dataset Dataset Seismic Network 2016 ftdatacite https://doi.org/10.7914/sn/9b_2016 2021-11-05T12:55:41Z In this project we will address significant aspects of ice stream flow and West Antarctic Ice Sheet stability. Our aims are to provide an observational basis for understanding the fast ice stream flow mechanism and to interpret ice sheet history. Using a hot-water drill we will penetrate an ice stream to its base, sample the ice and the subglacial material, deploy instruments within the ice and the bed, and conduct surface geophysical surveys. Sufficient aperture and fold are essential for accurate event location, reliable focal mechanism discrimination and also anisotropy characterisation. We will deploy 35 Reftek RT130 recorders with 4.5Hz geophones for a polar summer. In addition, we will deploy two sensors over-winter prior to drilling to record background levels. A passive seismic array at the surface will allow us to address the following questions: - What is the relative importance of ice creep, basal sliding and bed deformation in the flow of the ice stream? - What is the nature of the basal hydrological system? - What is the thermal regime of the ice and the bed? Dataset Antarc* Antarctic Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) Antarctic West Antarctic Ice Sheet |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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description |
In this project we will address significant aspects of ice stream flow and West Antarctic Ice Sheet stability. Our aims are to provide an observational basis for understanding the fast ice stream flow mechanism and to interpret ice sheet history. Using a hot-water drill we will penetrate an ice stream to its base, sample the ice and the subglacial material, deploy instruments within the ice and the bed, and conduct surface geophysical surveys. Sufficient aperture and fold are essential for accurate event location, reliable focal mechanism discrimination and also anisotropy characterisation. We will deploy 35 Reftek RT130 recorders with 4.5Hz geophones for a polar summer. In addition, we will deploy two sensors over-winter prior to drilling to record background levels. A passive seismic array at the surface will allow us to address the following questions: - What is the relative importance of ice creep, basal sliding and bed deformation in the flow of the ice stream? - What is the nature of the basal hydrological system? - What is the thermal regime of the ice and the bed? |
format |
Dataset |
author |
Alex Brisbourne Andy Smith |
spellingShingle |
Alex Brisbourne Andy Smith BEAMISH |
author_facet |
Alex Brisbourne Andy Smith |
author_sort |
Alex Brisbourne |
title |
BEAMISH |
title_short |
BEAMISH |
title_full |
BEAMISH |
title_fullStr |
BEAMISH |
title_full_unstemmed |
BEAMISH |
title_sort |
beamish |
publisher |
International Federation of Digital Seismograph Networks |
publishDate |
2016 |
url |
https://dx.doi.org/10.7914/sn/9b_2016 https://www.fdsn.org/networks/detail/9B_2016/ |
geographic |
Antarctic West Antarctic Ice Sheet |
geographic_facet |
Antarctic West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_doi |
https://doi.org/10.7914/sn/9b_2016 |
_version_ |
1766042007472439296 |