Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard
In permafrost areas, the active layer undergoes seasonal frost heave and thaw subsidence caused by ice formation and melting. The amplitude and timing of the ground displacement cycles depend on the climatic and ground conditions. Here we used Sentinel-1 Synthetic Aperture Radar Interferometry (InSA...
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Online Access: | https://hdl.handle.net/10037/22211 https://doi.org/10.3390/rs13152977 |
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ftunivtroemsoe:oai:munin.uit.no:10037/22211 2023-05-15T13:05:37+02:00 Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard Rouyet, Line Liu, Lin Strand, Sarah Marie Christiansen, Hanne H Lauknes, Tom Rune Larsen, Yngvar 2021-07-28 https://hdl.handle.net/10037/22211 https://doi.org/10.3390/rs13152977 eng eng MDPI Rouyet, L. (2021). Ground Dynamics in the Norwegian Periglacial Environment Investigated by Synthetic Aperture Radar Interferometry. (Doctoral thesis). https://hdl.handle.net/10037/22231 . Remote Sensing info:eu-repo/grantAgreement/RCN/ROMFORSK/ 263005/Norway/FrostInSAR: Upscaling the investigation of periglacial landforms in the Norwegian Arctic using Synthetic Aperture Radar Interferometry// Rouyet L, Liu L, Strand SM, Christiansen HH, Lauknes TRL, Larsen Y. Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard. Remote Sensing. 2021;13 FRIDAID 1927654 doi:10.3390/rs13152977 2072-4292 https://hdl.handle.net/10037/22211 openAccess Copyright 2021 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2021 ftunivtroemsoe https://doi.org/10.3390/rs13152977 2021-08-25T22:53:43Z In permafrost areas, the active layer undergoes seasonal frost heave and thaw subsidence caused by ice formation and melting. The amplitude and timing of the ground displacement cycles depend on the climatic and ground conditions. Here we used Sentinel-1 Synthetic Aperture Radar Interferometry (InSAR) to document the seasonal displacement progression in three regions of Svalbard. We retrieved June–November 2017 time series and identified thaw subsidence maxima and their timing. InSAR measurements were compared with a composite index model based on ground surface temperature. Cyclic seasonal patterns are identified in all areas, but the timing of the displacement progression varies. The subsidence maxima occurred later on the warm western coast (Kapp Linné and Ny-Ålesund) compared to the colder interior (Adventdalen). The composite index model is generally able to explain the observed patterns. In Adventdalen, the model matches the InSAR time series at the location of the borehole. In Kapp Linné and Ny-Ålesund, larger deviations are found at the pixel-scale, but km or regional averaging improves the fit. The study highlights the potential for further development of regional InSAR products to represent the cyclic displacements in permafrost areas and infer the active layer thermal dynamics Article in Journal/Newspaper Adventdalen Arctic Ice Ny Ålesund Ny-Ålesund permafrost Svalbard Spitsbergen University of Tromsø: Munin Open Research Archive Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Kapp Linné ENVELOPE(13.621,13.621,78.063,78.063) Ny-Ålesund Svalbard Remote Sensing 13 15 2977 |
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 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
spellingShingle |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Rouyet, Line Liu, Lin Strand, Sarah Marie Christiansen, Hanne H Lauknes, Tom Rune Larsen, Yngvar Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
In permafrost areas, the active layer undergoes seasonal frost heave and thaw subsidence caused by ice formation and melting. The amplitude and timing of the ground displacement cycles depend on the climatic and ground conditions. Here we used Sentinel-1 Synthetic Aperture Radar Interferometry (InSAR) to document the seasonal displacement progression in three regions of Svalbard. We retrieved June–November 2017 time series and identified thaw subsidence maxima and their timing. InSAR measurements were compared with a composite index model based on ground surface temperature. Cyclic seasonal patterns are identified in all areas, but the timing of the displacement progression varies. The subsidence maxima occurred later on the warm western coast (Kapp Linné and Ny-Ålesund) compared to the colder interior (Adventdalen). The composite index model is generally able to explain the observed patterns. In Adventdalen, the model matches the InSAR time series at the location of the borehole. In Kapp Linné and Ny-Ålesund, larger deviations are found at the pixel-scale, but km or regional averaging improves the fit. The study highlights the potential for further development of regional InSAR products to represent the cyclic displacements in permafrost areas and infer the active layer thermal dynamics |
format |
Article in Journal/Newspaper |
author |
Rouyet, Line Liu, Lin Strand, Sarah Marie Christiansen, Hanne H Lauknes, Tom Rune Larsen, Yngvar |
author_facet |
Rouyet, Line Liu, Lin Strand, Sarah Marie Christiansen, Hanne H Lauknes, Tom Rune Larsen, Yngvar |
author_sort |
Rouyet, Line |
title |
Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard |
title_short |
Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard |
title_full |
Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard |
title_fullStr |
Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard |
title_full_unstemmed |
Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard |
title_sort |
seasonal insar displacements documenting the active layer freeze and thaw progression in central-western spitsbergen, svalbard |
publisher |
MDPI |
publishDate |
2021 |
url |
https://hdl.handle.net/10037/22211 https://doi.org/10.3390/rs13152977 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) ENVELOPE(13.621,13.621,78.063,78.063) |
geographic |
Adventdalen Kapp Linné Ny-Ålesund Svalbard |
geographic_facet |
Adventdalen Kapp Linné Ny-Ålesund Svalbard |
genre |
Adventdalen Arctic Ice Ny Ålesund Ny-Ålesund permafrost Svalbard Spitsbergen |
genre_facet |
Adventdalen Arctic Ice Ny Ålesund Ny-Ålesund permafrost Svalbard Spitsbergen |
op_relation |
Rouyet, L. (2021). Ground Dynamics in the Norwegian Periglacial Environment Investigated by Synthetic Aperture Radar Interferometry. (Doctoral thesis). https://hdl.handle.net/10037/22231 . Remote Sensing info:eu-repo/grantAgreement/RCN/ROMFORSK/ 263005/Norway/FrostInSAR: Upscaling the investigation of periglacial landforms in the Norwegian Arctic using Synthetic Aperture Radar Interferometry// Rouyet L, Liu L, Strand SM, Christiansen HH, Lauknes TRL, Larsen Y. Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard. Remote Sensing. 2021;13 FRIDAID 1927654 doi:10.3390/rs13152977 2072-4292 https://hdl.handle.net/10037/22211 |
op_rights |
openAccess Copyright 2021 The Author(s) |
op_doi |
https://doi.org/10.3390/rs13152977 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
15 |
container_start_page |
2977 |
_version_ |
1766389191150665728 |