Extraction and applications of Rayleigh wave ellipticity in polar regions
Abstract Seismic Rayleigh wave ellipticity measurements are the horizontal-to-vertical ratio of the Rayleigh wave particle motion, and are sensitive to the subsurface structure beneath a seismic station. H/V ratios measured from the ambient vibrations of the Earth are being increasingly used in glac...
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2022
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crcambridgeupr:10.1017/aog.2023.1 2024-06-09T07:38:33+00:00 Extraction and applications of Rayleigh wave ellipticity in polar regions Jones, Glenn A. Kulessa, Bernd Ferreira, Ana M. G. Schimmel, Martin Berbellini, Andrea Morelli, Andrea H2020 European Research Council Natural Environment Research Council 2022 http://dx.doi.org/10.1017/aog.2023.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000010 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Annals of Glaciology volume 63, issue 87-89, page 3-7 ISSN 0260-3055 1727-5644 journal-article 2022 crcambridgeupr https://doi.org/10.1017/aog.2023.1 2024-05-15T13:03:35Z Abstract Seismic Rayleigh wave ellipticity measurements are the horizontal-to-vertical ratio of the Rayleigh wave particle motion, and are sensitive to the subsurface structure beneath a seismic station. H/V ratios measured from the ambient vibrations of the Earth are being increasingly used in glaciological applications to determine glacier and ice sheet thickness, seismic velocities and firn properties. Using the newly developed degree-of-polarisation (DOP-E) method which exploits the polarisation properties of seismic noise, we identify and extract Rayleigh waves from seismic stations in Greenland, and relate them to sea ice processes and the geology of the upper crust. Finally, we provide some suggestions for future applications of DOP-E method to gain greater insight into seasonal and long-term variability of sea ice formation and breakup as well as the monitoring of ice sheet thickness, subglacial environment and firn layers in the poles. Article in Journal/Newspaper Annals of Glaciology glacier Greenland Ice Sheet Sea ice Cambridge University Press Greenland Annals of Glaciology 1 5 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Seismic Rayleigh wave ellipticity measurements are the horizontal-to-vertical ratio of the Rayleigh wave particle motion, and are sensitive to the subsurface structure beneath a seismic station. H/V ratios measured from the ambient vibrations of the Earth are being increasingly used in glaciological applications to determine glacier and ice sheet thickness, seismic velocities and firn properties. Using the newly developed degree-of-polarisation (DOP-E) method which exploits the polarisation properties of seismic noise, we identify and extract Rayleigh waves from seismic stations in Greenland, and relate them to sea ice processes and the geology of the upper crust. Finally, we provide some suggestions for future applications of DOP-E method to gain greater insight into seasonal and long-term variability of sea ice formation and breakup as well as the monitoring of ice sheet thickness, subglacial environment and firn layers in the poles. |
author2 |
H2020 European Research Council Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Jones, Glenn A. Kulessa, Bernd Ferreira, Ana M. G. Schimmel, Martin Berbellini, Andrea Morelli, Andrea |
spellingShingle |
Jones, Glenn A. Kulessa, Bernd Ferreira, Ana M. G. Schimmel, Martin Berbellini, Andrea Morelli, Andrea Extraction and applications of Rayleigh wave ellipticity in polar regions |
author_facet |
Jones, Glenn A. Kulessa, Bernd Ferreira, Ana M. G. Schimmel, Martin Berbellini, Andrea Morelli, Andrea |
author_sort |
Jones, Glenn A. |
title |
Extraction and applications of Rayleigh wave ellipticity in polar regions |
title_short |
Extraction and applications of Rayleigh wave ellipticity in polar regions |
title_full |
Extraction and applications of Rayleigh wave ellipticity in polar regions |
title_fullStr |
Extraction and applications of Rayleigh wave ellipticity in polar regions |
title_full_unstemmed |
Extraction and applications of Rayleigh wave ellipticity in polar regions |
title_sort |
extraction and applications of rayleigh wave ellipticity in polar regions |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1017/aog.2023.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305523000010 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Annals of Glaciology glacier Greenland Ice Sheet Sea ice |
genre_facet |
Annals of Glaciology glacier Greenland Ice Sheet Sea ice |
op_source |
Annals of Glaciology volume 63, issue 87-89, page 3-7 ISSN 0260-3055 1727-5644 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/aog.2023.1 |
container_title |
Annals of Glaciology |
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1 |
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5 |
_version_ |
1801373592809635840 |