Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR
Nordenskiöld Land in Central Spitsbergen, Svalbard is characterized as a high latitude, high relief periglacial landscape with permafrost occurring both in mountains and lowlands. Freezing and thawing of the active layer causes seasonal frost heave and thaw subsidence, while permafrost-related mass-...
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Online Access: | https://hdl.handle.net/10037/17337 https://doi.org/10.1016/j.rse.2019.111236 |
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ftunivtroemsoe:oai:munin.uit.no:10037/17337 2023-05-15T13:05:38+02:00 Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR Rouyet, Line Lauknes, Tom Rune Christiansen, Hanne H Strand, Sarah Marie Larsen, Yngvar 2019-06-19 https://hdl.handle.net/10037/17337 https://doi.org/10.1016/j.rse.2019.111236 eng eng Elsevier 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 of Environment Norges forskningsråd: 263005 info:eu-repo/grantAgreement/RCN/ROMFORSK/263005/Norway/FrostInSAR: Upscaling the investigation of periglacial landforms in the Norwegian Arctic using Synthetic Aperture Radar Interferometry/FrostInSAR/ info:eu-repo/grantAgreement/RCN/ROMFORSK/212022/Norway/PermaSAR: SAR detection of permafrost landscape changes in northern Norway and on Svalbard/PermaSAR/ Rouyet L, Lauknes TRL, Christiansen HH, Strand SM, Larsen Y. Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR. Remote Sensing of Environment. 2019;231:1-17 FRIDAID 1711125 doi:10.1016/j.rse.2019.111236 0034-4257 1879-0704 https://hdl.handle.net/10037/17337 openAccess Copyright 2019 The Author(s) VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2019 ftunivtroemsoe https://doi.org/10.1016/j.rse.2019.111236 2021-08-25T22:53:41Z Nordenskiöld Land in Central Spitsbergen, Svalbard is characterized as a high latitude, high relief periglacial landscape with permafrost occurring both in mountains and lowlands. Freezing and thawing of the active layer causes seasonal frost heave and thaw subsidence, while permafrost-related mass-wasting processes induce downslope ground displacements on valley sides. Displacement rate varies spatially and temporally depending on environmental factors. In our study, we apply Satellite Synthetic Aperture Radar Interferometry (InSAR) to investigate the magnitude, spatial distribution and timing of seasonal ground displacements in and around Adventdalen using TerraSAR-X StripMap Mode (2009–2017) and Sentinel-1 Interferometric Wide Swath Mode (2015–2017) SAR images. First, we show that InSAR results from both sensors highlight consistent patterns and provide a comprehensive overview of the distribution of displacement rates. Secondly, two-dimensional (2D) TerraSAR-X InSAR results from combined ascending and descending geometries document the spatial variability of the vertical and east-west horizontal displacement rates for an average of nine thawing seasons. The remote sensing results are compared to a simplified geomorphological map enabling the identification of specific magnitudes and orientations of displacements for 14 selected geomorphological units. Finally, June to December 2017 6-day sampling interval Sentinel-1 time series was retrieved and compared to active layer ground temperatures from two boreholes. The timing of the subsidence and heave detected by InSAR matches the thawing and freeze-back periods measured by in-situ sensors. Our results highlight the value of InSAR to obtain landscape scale knowledge about the seasonal dynamics of complex periglacial environments. Article in Journal/Newspaper Adventdalen Arctic Nordenskiöld Land permafrost Svalbard Spitsbergen University of Tromsø: Munin Open Research Archive Adventdalen ENVELOPE(16.264,16.264,78.181,78.181) Nordenskiöld Land ENVELOPE(15.000,15.000,77.833,77.833) Svalbard Remote Sensing of Environment 231 111236 |
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 Lauknes, Tom Rune Christiansen, Hanne H Strand, Sarah Marie Larsen, Yngvar Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450 VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 |
description |
Nordenskiöld Land in Central Spitsbergen, Svalbard is characterized as a high latitude, high relief periglacial landscape with permafrost occurring both in mountains and lowlands. Freezing and thawing of the active layer causes seasonal frost heave and thaw subsidence, while permafrost-related mass-wasting processes induce downslope ground displacements on valley sides. Displacement rate varies spatially and temporally depending on environmental factors. In our study, we apply Satellite Synthetic Aperture Radar Interferometry (InSAR) to investigate the magnitude, spatial distribution and timing of seasonal ground displacements in and around Adventdalen using TerraSAR-X StripMap Mode (2009–2017) and Sentinel-1 Interferometric Wide Swath Mode (2015–2017) SAR images. First, we show that InSAR results from both sensors highlight consistent patterns and provide a comprehensive overview of the distribution of displacement rates. Secondly, two-dimensional (2D) TerraSAR-X InSAR results from combined ascending and descending geometries document the spatial variability of the vertical and east-west horizontal displacement rates for an average of nine thawing seasons. The remote sensing results are compared to a simplified geomorphological map enabling the identification of specific magnitudes and orientations of displacements for 14 selected geomorphological units. Finally, June to December 2017 6-day sampling interval Sentinel-1 time series was retrieved and compared to active layer ground temperatures from two boreholes. The timing of the subsidence and heave detected by InSAR matches the thawing and freeze-back periods measured by in-situ sensors. Our results highlight the value of InSAR to obtain landscape scale knowledge about the seasonal dynamics of complex periglacial environments. |
format |
Article in Journal/Newspaper |
author |
Rouyet, Line Lauknes, Tom Rune Christiansen, Hanne H Strand, Sarah Marie Larsen, Yngvar |
author_facet |
Rouyet, Line Lauknes, Tom Rune Christiansen, Hanne H Strand, Sarah Marie Larsen, Yngvar |
author_sort |
Rouyet, Line |
title |
Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR |
title_short |
Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR |
title_full |
Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR |
title_fullStr |
Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR |
title_full_unstemmed |
Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR |
title_sort |
seasonal dynamics of a permafrost landscape, adventdalen, svalbard, investigated by insar |
publisher |
Elsevier |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/17337 https://doi.org/10.1016/j.rse.2019.111236 |
long_lat |
ENVELOPE(16.264,16.264,78.181,78.181) ENVELOPE(15.000,15.000,77.833,77.833) |
geographic |
Adventdalen Nordenskiöld Land Svalbard |
geographic_facet |
Adventdalen Nordenskiöld Land Svalbard |
genre |
Adventdalen Arctic Nordenskiöld Land permafrost Svalbard Spitsbergen |
genre_facet |
Adventdalen Arctic Nordenskiöld Land 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 of Environment Norges forskningsråd: 263005 info:eu-repo/grantAgreement/RCN/ROMFORSK/263005/Norway/FrostInSAR: Upscaling the investigation of periglacial landforms in the Norwegian Arctic using Synthetic Aperture Radar Interferometry/FrostInSAR/ info:eu-repo/grantAgreement/RCN/ROMFORSK/212022/Norway/PermaSAR: SAR detection of permafrost landscape changes in northern Norway and on Svalbard/PermaSAR/ Rouyet L, Lauknes TRL, Christiansen HH, Strand SM, Larsen Y. Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR. Remote Sensing of Environment. 2019;231:1-17 FRIDAID 1711125 doi:10.1016/j.rse.2019.111236 0034-4257 1879-0704 https://hdl.handle.net/10037/17337 |
op_rights |
openAccess Copyright 2019 The Author(s) |
op_doi |
https://doi.org/10.1016/j.rse.2019.111236 |
container_title |
Remote Sensing of Environment |
container_volume |
231 |
container_start_page |
111236 |
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1766389889935343616 |