Extraction and applications of Rayleigh wave ellipticity in polar regions
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...
Main Authors: | , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
International Glaciological Society
2023
|
Subjects: | |
Online Access: | https://discovery.ucl.ac.uk/id/eprint/10174255/1/extraction-and-applications-of-rayleigh-wave-ellipticity-in-polar-regions.pdf https://discovery.ucl.ac.uk/id/eprint/10174255/ |
id |
ftucl:oai:eprints.ucl.ac.uk.OAI2:10174255 |
---|---|
record_format |
openpolar |
spelling |
ftucl:oai:eprints.ucl.ac.uk.OAI2:10174255 2023-12-24T10:08:24+01:00 Extraction and applications of Rayleigh wave ellipticity in polar regions Jones, Glenn Kulessa, Bernd Ferreira, Ana Schimmel, Martin Berbellini, Andrea Morelli, Andrea 2023-03-29 text https://discovery.ucl.ac.uk/id/eprint/10174255/1/extraction-and-applications-of-rayleigh-wave-ellipticity-in-polar-regions.pdf https://discovery.ucl.ac.uk/id/eprint/10174255/ eng eng International Glaciological Society https://discovery.ucl.ac.uk/id/eprint/10174255/1/extraction-and-applications-of-rayleigh-wave-ellipticity-in-polar-regions.pdf https://discovery.ucl.ac.uk/id/eprint/10174255/ open Annals of Glaciology (2023) (In press). Glacier geophysics Glacier monitoring Sea-ice geophysics; Seismology Article 2023 ftucl 2023-11-27T13:07:27Z 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 University College London: UCL Discovery Greenland |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
English |
topic |
Glacier geophysics Glacier monitoring Sea-ice geophysics; Seismology |
spellingShingle |
Glacier geophysics Glacier monitoring Sea-ice geophysics; Seismology Jones, Glenn Kulessa, Bernd Ferreira, Ana Schimmel, Martin Berbellini, Andrea Morelli, Andrea Extraction and applications of Rayleigh wave ellipticity in polar regions |
topic_facet |
Glacier geophysics Glacier monitoring Sea-ice geophysics; Seismology |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Jones, Glenn Kulessa, Bernd Ferreira, Ana Schimmel, Martin Berbellini, Andrea Morelli, Andrea |
author_facet |
Jones, Glenn Kulessa, Bernd Ferreira, Ana Schimmel, Martin Berbellini, Andrea Morelli, Andrea |
author_sort |
Jones, Glenn |
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 |
International Glaciological Society |
publishDate |
2023 |
url |
https://discovery.ucl.ac.uk/id/eprint/10174255/1/extraction-and-applications-of-rayleigh-wave-ellipticity-in-polar-regions.pdf https://discovery.ucl.ac.uk/id/eprint/10174255/ |
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 (2023) (In press). |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/10174255/1/extraction-and-applications-of-rayleigh-wave-ellipticity-in-polar-regions.pdf https://discovery.ucl.ac.uk/id/eprint/10174255/ |
op_rights |
open |
_version_ |
1786198683400798208 |