Cracking into Cryoseismology
The cryosphere encompasses the seasonally and perennially frozen parts of the earth and its extent is both sensitive to and impacts upon the global climate through surface energy and moisture fluxes and feedbacks. The dynamics of ice and frozen ground also impact directly on, e.g., construction and...
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UiT Norges arktiske universitet
2022
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Online Access: | https://hdl.handle.net/10037/24344 |
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ftunivtroemsoe:oai:munin.uit.no:10037/24344 2023-05-15T13:05:49+02:00 Cracking into Cryoseismology Romeyn, Rowan 2022-03-22 https://hdl.handle.net/10037/24344 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway Paper I: Romeyn, R., Hanssen, A., Ruud, B.O., Stemland, H.M. & Johansen, T.A. (2021). Passive seismic recording of cryoseisms in Adventdalen, Svalbard. The Cryosphere, 15 , 283–302. Also available in Munin at https://hdl.handle.net/10037/20566 . Paper II: Romeyn, R., Hanssen, A. & Köhler, A. (2021). Long term analysis of cryoseismic events and associated ground thermal stress in Adventdalen, Svalbard. The Cryosphere Discussions , preprint, in review. Also available at https://doi.org/10.5194/tc-2021-329 . Paper III: Romeyn, R., Hanssen, A., Ruud, B.O. & Johansen, T.A. (2021). Sea ice thickness from air-coupled flexural waves. The Cryosphere, 15 , 2939–2955. Also available in Munin at https://hdl.handle.net/10037/21600 . 978-82-8236-472-0 https://hdl.handle.net/10037/24344 openAccess Copyright 2022 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450::Other geosciences: 469 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Andre geofag: 469 geophysics geofysikk seismology seismologi cryosphere permafrost dynamical model seismic wave frost quake ice quake thermal stress sea ice passive seismic dispersion beamforming frozen ground Svalbard environmental seismology cryoseismology elastic properties viscoelastic thermoviscoelastic surface wave guided wave thermal contraction frost creep rheology Van Mijenfjorden Adventdalen air-coupled flexural wave ice thickness periglacial DOKTOR-004 Doctoral thesis Doktorgradsavhandling 2022 ftunivtroemsoe 2022-03-09T23:57:53Z The cryosphere encompasses the seasonally and perennially frozen parts of the earth and its extent is both sensitive to and impacts upon the global climate through surface energy and moisture fluxes and feedbacks. The dynamics of ice and frozen ground also impact directly on, e.g., construction and maintenance of roads in cold regions or transportation across floating ice sheets. The aim of this thesis was to investigate the extent to which seismic methods can be used to study dynamic processes and longer-term changes in the cryosphere. The thesis is structured around three case studies linking active- and passive-source seismic experiments with numerical models of thermal stress, seismic wave dispersion and propagation. In Paper 1, temporary arrays of geophones with fine spatial sampling demonstrated that high ground-ice content in the near-surface during winter/spring produces a seasonally varying multimodal surface wave dispersion pattern. In Paper 2, the role of thermal stress in triggering frost quakes was further explored using borehole temperature measurements and multi-decadal continuous seismic recordings from the small-aperture Spitsbergen seismic array (SPITS). Thermal contraction cracking within the frozen active layer was shown to be a plausible mechanism contributing to frost quake seismicity. In Paper 3, a multi-annual catalogue of explosive source seismic experiments conducted on first-year sea-ice in Van Mijenfjorden, Svalbard, was used to demonstrate the usefulness of air-coupled flexural waves for estimating the thickness of a floating ice sheet. Viewed as a whole, the case studies developed in this thesis illustrate the ability of seismic methods to record and monitor dynamic processes in the cryosphere over a range of temporal scales. Continuous passive seismic recordings with high-temporal resolution provide a useful complement to other geophysical and remote sensing techniques used for monitoring the dynamics of the cryosphere. Doctoral or Postdoctoral Thesis Adventdalen Ice Ice Sheet permafrost Sea ice Svalbard The Cryosphere The Cryosphere Discussions Van Mijenfjorden Spitsbergen University of Tromsø: Munin Open Research Archive Svalbard Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Van Mijenfjorden ENVELOPE(14.667,14.667,77.717,77.717) |
institution |
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::Other geosciences: 469 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Andre geofag: 469 geophysics geofysikk seismology seismologi cryosphere permafrost dynamical model seismic wave frost quake ice quake thermal stress sea ice passive seismic dispersion beamforming frozen ground Svalbard environmental seismology cryoseismology elastic properties viscoelastic thermoviscoelastic surface wave guided wave thermal contraction frost creep rheology Van Mijenfjorden Adventdalen air-coupled flexural wave ice thickness periglacial DOKTOR-004 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450::Other geosciences: 469 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Andre geofag: 469 geophysics geofysikk seismology seismologi cryosphere permafrost dynamical model seismic wave frost quake ice quake thermal stress sea ice passive seismic dispersion beamforming frozen ground Svalbard environmental seismology cryoseismology elastic properties viscoelastic thermoviscoelastic surface wave guided wave thermal contraction frost creep rheology Van Mijenfjorden Adventdalen air-coupled flexural wave ice thickness periglacial DOKTOR-004 Romeyn, Rowan Cracking into Cryoseismology |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Other geosciences: 469 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Andre geofag: 469 geophysics geofysikk seismology seismologi cryosphere permafrost dynamical model seismic wave frost quake ice quake thermal stress sea ice passive seismic dispersion beamforming frozen ground Svalbard environmental seismology cryoseismology elastic properties viscoelastic thermoviscoelastic surface wave guided wave thermal contraction frost creep rheology Van Mijenfjorden Adventdalen air-coupled flexural wave ice thickness periglacial DOKTOR-004 |
description |
The cryosphere encompasses the seasonally and perennially frozen parts of the earth and its extent is both sensitive to and impacts upon the global climate through surface energy and moisture fluxes and feedbacks. The dynamics of ice and frozen ground also impact directly on, e.g., construction and maintenance of roads in cold regions or transportation across floating ice sheets. The aim of this thesis was to investigate the extent to which seismic methods can be used to study dynamic processes and longer-term changes in the cryosphere. The thesis is structured around three case studies linking active- and passive-source seismic experiments with numerical models of thermal stress, seismic wave dispersion and propagation. In Paper 1, temporary arrays of geophones with fine spatial sampling demonstrated that high ground-ice content in the near-surface during winter/spring produces a seasonally varying multimodal surface wave dispersion pattern. In Paper 2, the role of thermal stress in triggering frost quakes was further explored using borehole temperature measurements and multi-decadal continuous seismic recordings from the small-aperture Spitsbergen seismic array (SPITS). Thermal contraction cracking within the frozen active layer was shown to be a plausible mechanism contributing to frost quake seismicity. In Paper 3, a multi-annual catalogue of explosive source seismic experiments conducted on first-year sea-ice in Van Mijenfjorden, Svalbard, was used to demonstrate the usefulness of air-coupled flexural waves for estimating the thickness of a floating ice sheet. Viewed as a whole, the case studies developed in this thesis illustrate the ability of seismic methods to record and monitor dynamic processes in the cryosphere over a range of temporal scales. Continuous passive seismic recordings with high-temporal resolution provide a useful complement to other geophysical and remote sensing techniques used for monitoring the dynamics of the cryosphere. |
format |
Doctoral or Postdoctoral Thesis |
author |
Romeyn, Rowan |
author_facet |
Romeyn, Rowan |
author_sort |
Romeyn, Rowan |
title |
Cracking into Cryoseismology |
title_short |
Cracking into Cryoseismology |
title_full |
Cracking into Cryoseismology |
title_fullStr |
Cracking into Cryoseismology |
title_full_unstemmed |
Cracking into Cryoseismology |
title_sort |
cracking into cryoseismology |
publisher |
UiT Norges arktiske universitet |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/24344 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) ENVELOPE(14.667,14.667,77.717,77.717) |
geographic |
Svalbard Adventdalen Van Mijenfjorden |
geographic_facet |
Svalbard Adventdalen Van Mijenfjorden |
genre |
Adventdalen Ice Ice Sheet permafrost Sea ice Svalbard The Cryosphere The Cryosphere Discussions Van Mijenfjorden Spitsbergen |
genre_facet |
Adventdalen Ice Ice Sheet permafrost Sea ice Svalbard The Cryosphere The Cryosphere Discussions Van Mijenfjorden Spitsbergen |
op_relation |
Paper I: Romeyn, R., Hanssen, A., Ruud, B.O., Stemland, H.M. & Johansen, T.A. (2021). Passive seismic recording of cryoseisms in Adventdalen, Svalbard. The Cryosphere, 15 , 283–302. Also available in Munin at https://hdl.handle.net/10037/20566 . Paper II: Romeyn, R., Hanssen, A. & Köhler, A. (2021). Long term analysis of cryoseismic events and associated ground thermal stress in Adventdalen, Svalbard. The Cryosphere Discussions , preprint, in review. Also available at https://doi.org/10.5194/tc-2021-329 . Paper III: Romeyn, R., Hanssen, A., Ruud, B.O. & Johansen, T.A. (2021). Sea ice thickness from air-coupled flexural waves. The Cryosphere, 15 , 2939–2955. Also available in Munin at https://hdl.handle.net/10037/21600 . 978-82-8236-472-0 https://hdl.handle.net/10037/24344 |
op_rights |
openAccess Copyright 2022 The Author(s) |
_version_ |
1766394568674115584 |