Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water
Seismic surveying of the coastal areas in the Arctic is best facilitated during wintertime when the sea ice is land‐fast. This eases the logistics of the operation and assures that there is no damage made to the vulnerable tundra. Seismic experiments on floating ice on shallow water performed in a f...
Published in: | Near Surface Geophysics |
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Online Access: | https://hdl.handle.net/10037/20228 https://doi.org/10.1002/nsg.12082 |
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ftunivtroemsoe:oai:munin.uit.no:10037/20228 2023-05-15T14:26:22+02:00 Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water Johansen, Tor Arne Ruud, Bent Ole 2020-01-09 https://hdl.handle.net/10037/20228 https://doi.org/10.1002/nsg.12082 eng eng Wiley Near Surface Geophysics info:eu-repo/grantAgreement/RCN/PETROSENTR/220107/Norway/Research Centre for Arctic Petroleum Exploration/ARCEx/ Johansen TA, Ruud BO. Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water. Near Surface Geophysics. 2020;18(1):49-59 FRIDAID 1811699 doi:10.1002/nsg.12082 1569-4445 1873-0604 https://hdl.handle.net/10037/20228 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1002/nsg.12082 2021-06-25T17:57:56Z Seismic surveying of the coastal areas in the Arctic is best facilitated during wintertime when the sea ice is land‐fast. This eases the logistics of the operation and assures that there is no damage made to the vulnerable tundra. Seismic experiments on floating ice on shallow water performed in a fjord in Svalbard in the Norwegian Arctic show prominent Scholte waves. The dispersion relation of Scholte waves can provide the shear wave velocities of the seabed sediments. Scholte wave data can potentially be obtained when the seismic source and geophone receivers are both placed on top of the floating ice. However, the Scholte wave data become more distinct by using an air gun lowered some metres below the ice. A rock physics model based on a two‐step differential effective medium scheme has been tuned to predict seismic properties found for very loose sediments, among these very high P‐wave to S‐wave velocity ratios. The rock physics model enables us to convert seismic velocities obtained from Scholte wave data to quantitative estimates of the sediment composition. Article in Journal/Newspaper Arctic Arctic Sea ice Svalbard Tundra University of Tromsø: Munin Open Research Archive Arctic Svalbard Near Surface Geophysics 18 1 49 59 |
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Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Johansen, Tor Arne Ruud, Bent Ole Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
Seismic surveying of the coastal areas in the Arctic is best facilitated during wintertime when the sea ice is land‐fast. This eases the logistics of the operation and assures that there is no damage made to the vulnerable tundra. Seismic experiments on floating ice on shallow water performed in a fjord in Svalbard in the Norwegian Arctic show prominent Scholte waves. The dispersion relation of Scholte waves can provide the shear wave velocities of the seabed sediments. Scholte wave data can potentially be obtained when the seismic source and geophone receivers are both placed on top of the floating ice. However, the Scholte wave data become more distinct by using an air gun lowered some metres below the ice. A rock physics model based on a two‐step differential effective medium scheme has been tuned to predict seismic properties found for very loose sediments, among these very high P‐wave to S‐wave velocity ratios. The rock physics model enables us to convert seismic velocities obtained from Scholte wave data to quantitative estimates of the sediment composition. |
format |
Article in Journal/Newspaper |
author |
Johansen, Tor Arne Ruud, Bent Ole |
author_facet |
Johansen, Tor Arne Ruud, Bent Ole |
author_sort |
Johansen, Tor Arne |
title |
Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water |
title_short |
Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water |
title_full |
Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water |
title_fullStr |
Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water |
title_full_unstemmed |
Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water |
title_sort |
characterization of seabed properties from scholte waves acquired on floating ice on shallow water |
publisher |
Wiley |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/20228 https://doi.org/10.1002/nsg.12082 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic Sea ice Svalbard Tundra |
genre_facet |
Arctic Arctic Sea ice Svalbard Tundra |
op_relation |
Near Surface Geophysics info:eu-repo/grantAgreement/RCN/PETROSENTR/220107/Norway/Research Centre for Arctic Petroleum Exploration/ARCEx/ Johansen TA, Ruud BO. Characterization of seabed properties from Scholte waves acquired on floating ice on shallow water. Near Surface Geophysics. 2020;18(1):49-59 FRIDAID 1811699 doi:10.1002/nsg.12082 1569-4445 1873-0604 https://hdl.handle.net/10037/20228 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1002/nsg.12082 |
container_title |
Near Surface Geophysics |
container_volume |
18 |
container_issue |
1 |
container_start_page |
49 |
op_container_end_page |
59 |
_version_ |
1766298895804006400 |