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-...
Published in: | Remote Sensing of Environment |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/10852/76709 http://urn.nb.no/URN:NBN:no-79803 https://doi.org/10.1016/j.rse.2019.111236 |
id |
ftoslouniv:oai:www.duo.uio.no:10852/76709 |
---|---|
record_format |
openpolar |
spelling |
ftoslouniv:oai:www.duo.uio.no:10852/76709 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 2019-07-10T14:33:01Z http://hdl.handle.net/10852/76709 http://urn.nb.no/URN:NBN:no-79803 https://doi.org/10.1016/j.rse.2019.111236 EN eng NFR/263005 ESA/4000106830 NFR/212022 ESA/4000119115 OTHER/German Aerospace Center - #GEO0565 OTHER/German Aerospace Center - #GEO3519 http://urn.nb.no/URN:NBN:no-79803 Rouyet, Line Lauknes, Tom Rune Christiansen, Hanne H Strand, Sarah Marie Larsen, Yngvar . Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR. Remote Sensing of Environment. 2019, 231, 1-17 http://hdl.handle.net/10852/76709 1711125 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Remote Sensing of Environment&rft.volume=231&rft.spage=1&rft.date=2019 Remote Sensing of Environment 231 https://doi.org/10.1016/j.rse.2019.111236 URN:NBN:no-79803 Fulltext https://www.duo.uio.no/bitstream/handle/10852/76709/2/1-s2.0-S003442571930255X-main.pdf Attribution-NonCommercial-NoDerivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND 0034-4257 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.1016/j.rse.2019.111236 2020-06-21T08:54:37Z 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 Nordenskiöld Land permafrost Svalbard Spitsbergen Universitet i Oslo: Digitale utgivelser ved UiO (DUO) 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 |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
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 |
spellingShingle |
Rouyet, Line Lauknes, Tom Rune Christiansen, Hanne H Strand, Sarah Marie Larsen, Yngvar Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR |
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 |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/76709 http://urn.nb.no/URN:NBN:no-79803 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 Nordenskiöld Land permafrost Svalbard Spitsbergen |
genre_facet |
Adventdalen Nordenskiöld Land permafrost Svalbard Spitsbergen |
op_source |
0034-4257 |
op_relation |
NFR/263005 ESA/4000106830 NFR/212022 ESA/4000119115 OTHER/German Aerospace Center - #GEO0565 OTHER/German Aerospace Center - #GEO3519 http://urn.nb.no/URN:NBN:no-79803 Rouyet, Line Lauknes, Tom Rune Christiansen, Hanne H Strand, Sarah Marie Larsen, Yngvar . Seasonal dynamics of a permafrost landscape, Adventdalen, Svalbard, investigated by InSAR. Remote Sensing of Environment. 2019, 231, 1-17 http://hdl.handle.net/10852/76709 1711125 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Remote Sensing of Environment&rft.volume=231&rft.spage=1&rft.date=2019 Remote Sensing of Environment 231 https://doi.org/10.1016/j.rse.2019.111236 URN:NBN:no-79803 Fulltext https://www.duo.uio.no/bitstream/handle/10852/76709/2/1-s2.0-S003442571930255X-main.pdf |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.rse.2019.111236 |
container_title |
Remote Sensing of Environment |
container_volume |
231 |
container_start_page |
111236 |
_version_ |
1766389650254987264 |