Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry
In permafrost areas, seasonal freeze-thaw cycles result in upward and downward movements of the ground. For some permafrost areas, long-term downward movements were reported during the last decade. We measured seasonal and multi-year ground movements in a yedoma region of the Lena River Delta, Siber...
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Online Access: | http://hdl.handle.net/10852/71251 http://urn.nb.no/URN:NBN:no-74327 https://doi.org/10.3390/rs10040494 |
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ftoslouniv:oai:www.duo.uio.no:10852/71251 2023-05-15T17:07:40+02:00 Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry Antonova, Sofia Sudhaus, Henriette Strozzi, Tazio Zwieback, Simon Kääb, Andreas Heim, Birgit Langer, Moritz Bornemann, Niko Boike, Julia 2019-01-14T16:00:11Z http://hdl.handle.net/10852/71251 http://urn.nb.no/URN:NBN:no-74327 https://doi.org/10.3390/rs10040494 EN eng MDPI AG http://urn.nb.no/URN:NBN:no-74327 Antonova, Sofia Sudhaus, Henriette Strozzi, Tazio Zwieback, Simon Kääb, Andreas Heim, Birgit Langer, Moritz Bornemann, Niko Boike, Julia . Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry. Remote Sensing. 2018 http://hdl.handle.net/10852/71251 1656592 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Remote Sensing&rft.volume=&rft.spage=&rft.date=2018 Remote Sensing 10 4 https://doi.org/10.3390/rs10040494 URN:NBN:no-74327 Fulltext https://www.duo.uio.no/bitstream/handle/10852/71251/1/remotesensing-10-00494.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 2072-4292 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.3390/rs10040494 2020-06-21T08:52:50Z In permafrost areas, seasonal freeze-thaw cycles result in upward and downward movements of the ground. For some permafrost areas, long-term downward movements were reported during the last decade. We measured seasonal and multi-year ground movements in a yedoma region of the Lena River Delta, Siberia, in 2013–2017, using reference rods installed deep in the permafrost. The seasonal subsidence was 1.7 ± 1.5 cm in the cold summer of 2013 and 4.8 ± 2 cm in the warm summer of 2014. Furthermore, we measured a pronounced multi-year net subsidence of 9.3 ± 5.7 cm from spring 2013 to the end of summer 2017. Importantly, we observed a high spatial variability of subsidence of up to 6 cm across a sub-meter horizontal scale. In summer 2013, we accompanied our field measurements with Differential Synthetic Aperture Radar Interferometry (DInSAR) on repeat-pass TerraSAR-X (TSX) data from the summer of 2013 to detect summer thaw subsidence over the same study area. Interferometry was strongly affected by a fast phase coherence loss, atmospheric artifacts, and possibly the choice of reference point. A cumulative ground movement map, built from a continuous interferogram stack, did not reveal a subsidence on the upland but showed a distinct subsidence of up to 2 cm in most of the thermokarst basins. There, the spatial pattern of DInSAR-measured subsidence corresponded well with relative surface wetness identified with the near infra-red band of a high-resolution optical image. Our study suggests that (i) although X-band SAR has serious limitations for ground movement monitoring in permafrost landscapes, it can provide valuable information for specific environments like thermokarst basins, and (ii) due to the high sub-pixel spatial variability of ground movements, a validation scheme needs to be developed and implemented for future DInSAR studies in permafrost environments. Article in Journal/Newspaper lena river permafrost Thermokarst Siberia Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Remote Sensing 10 4 494 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
In permafrost areas, seasonal freeze-thaw cycles result in upward and downward movements of the ground. For some permafrost areas, long-term downward movements were reported during the last decade. We measured seasonal and multi-year ground movements in a yedoma region of the Lena River Delta, Siberia, in 2013–2017, using reference rods installed deep in the permafrost. The seasonal subsidence was 1.7 ± 1.5 cm in the cold summer of 2013 and 4.8 ± 2 cm in the warm summer of 2014. Furthermore, we measured a pronounced multi-year net subsidence of 9.3 ± 5.7 cm from spring 2013 to the end of summer 2017. Importantly, we observed a high spatial variability of subsidence of up to 6 cm across a sub-meter horizontal scale. In summer 2013, we accompanied our field measurements with Differential Synthetic Aperture Radar Interferometry (DInSAR) on repeat-pass TerraSAR-X (TSX) data from the summer of 2013 to detect summer thaw subsidence over the same study area. Interferometry was strongly affected by a fast phase coherence loss, atmospheric artifacts, and possibly the choice of reference point. A cumulative ground movement map, built from a continuous interferogram stack, did not reveal a subsidence on the upland but showed a distinct subsidence of up to 2 cm in most of the thermokarst basins. There, the spatial pattern of DInSAR-measured subsidence corresponded well with relative surface wetness identified with the near infra-red band of a high-resolution optical image. Our study suggests that (i) although X-band SAR has serious limitations for ground movement monitoring in permafrost landscapes, it can provide valuable information for specific environments like thermokarst basins, and (ii) due to the high sub-pixel spatial variability of ground movements, a validation scheme needs to be developed and implemented for future DInSAR studies in permafrost environments. |
format |
Article in Journal/Newspaper |
author |
Antonova, Sofia Sudhaus, Henriette Strozzi, Tazio Zwieback, Simon Kääb, Andreas Heim, Birgit Langer, Moritz Bornemann, Niko Boike, Julia |
spellingShingle |
Antonova, Sofia Sudhaus, Henriette Strozzi, Tazio Zwieback, Simon Kääb, Andreas Heim, Birgit Langer, Moritz Bornemann, Niko Boike, Julia Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry |
author_facet |
Antonova, Sofia Sudhaus, Henriette Strozzi, Tazio Zwieback, Simon Kääb, Andreas Heim, Birgit Langer, Moritz Bornemann, Niko Boike, Julia |
author_sort |
Antonova, Sofia |
title |
Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry |
title_short |
Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry |
title_full |
Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry |
title_fullStr |
Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry |
title_full_unstemmed |
Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry |
title_sort |
thaw subsidence of a yedoma landscape in northern siberia, measured in situ and estimated from terrasar-x interferometry |
publisher |
MDPI AG |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/71251 http://urn.nb.no/URN:NBN:no-74327 https://doi.org/10.3390/rs10040494 |
genre |
lena river permafrost Thermokarst Siberia |
genre_facet |
lena river permafrost Thermokarst Siberia |
op_source |
2072-4292 |
op_relation |
http://urn.nb.no/URN:NBN:no-74327 Antonova, Sofia Sudhaus, Henriette Strozzi, Tazio Zwieback, Simon Kääb, Andreas Heim, Birgit Langer, Moritz Bornemann, Niko Boike, Julia . Thaw subsidence of a Yedoma landscape in Northern Siberia, measured in situ and estimated from TerraSAR-X interferometry. Remote Sensing. 2018 http://hdl.handle.net/10852/71251 1656592 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Remote Sensing&rft.volume=&rft.spage=&rft.date=2018 Remote Sensing 10 4 https://doi.org/10.3390/rs10040494 URN:NBN:no-74327 Fulltext https://www.duo.uio.no/bitstream/handle/10852/71251/1/remotesensing-10-00494.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/rs10040494 |
container_title |
Remote Sensing |
container_volume |
10 |
container_issue |
4 |
container_start_page |
494 |
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1766063158530670592 |