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: | https://epic.awi.de/id/eprint/47561/ https://epic.awi.de/id/eprint/47561/2/remotesensing-10-00494.pdf https://hdl.handle.net/10013/epic.62882e04-5b28-4d72-846c-5476d339af29 |
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ftawi:oai:epic.awi.de:47561 2024-09-15T18:17:45+00:00 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 2018-03-21 application/pdf https://epic.awi.de/id/eprint/47561/ https://epic.awi.de/id/eprint/47561/2/remotesensing-10-00494.pdf https://hdl.handle.net/10013/epic.62882e04-5b28-4d72-846c-5476d339af29 unknown MDPI https://epic.awi.de/id/eprint/47561/2/remotesensing-10-00494.pdf Antonova, S. , Sudhaus, H. , Strozzi, T. , Zwieback, S. , Kääb, A. , Heim, B. orcid:0000-0003-2614-9391 , Langer, M. orcid:0000-0002-2704-3655 , Bornemann, N. orcid:0000-0001-5415-509X and Boike, J. orcid:0000-0002-5875-2112 (2018) Thaw subsidence of a yedoma landscape in northern Siberia, measured in situ and estimated from TerraSAR-X interferometry , Remote Sensing, 10(4) (494) . doi:10.3390/rs10040494 <https://doi.org/10.3390/rs10040494> , hdl:10013/epic.62882e04-5b28-4d72-846c-5476d339af29 EPIC3Remote Sensing, MDPI, 10(4)(494) Article isiRev 2018 ftawi https://doi.org/10.3390/rs10040494 2024-06-24T04:19:47Z 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Remote Sensing 10 4 494 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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 |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/47561/ https://epic.awi.de/id/eprint/47561/2/remotesensing-10-00494.pdf https://hdl.handle.net/10013/epic.62882e04-5b28-4d72-846c-5476d339af29 |
genre |
lena river permafrost Thermokarst Siberia |
genre_facet |
lena river permafrost Thermokarst Siberia |
op_source |
EPIC3Remote Sensing, MDPI, 10(4)(494) |
op_relation |
https://epic.awi.de/id/eprint/47561/2/remotesensing-10-00494.pdf Antonova, S. , Sudhaus, H. , Strozzi, T. , Zwieback, S. , Kääb, A. , Heim, B. orcid:0000-0003-2614-9391 , Langer, M. orcid:0000-0002-2704-3655 , Bornemann, N. orcid:0000-0001-5415-509X and Boike, J. orcid:0000-0002-5875-2112 (2018) Thaw subsidence of a yedoma landscape in northern Siberia, measured in situ and estimated from TerraSAR-X interferometry , Remote Sensing, 10(4) (494) . doi:10.3390/rs10040494 <https://doi.org/10.3390/rs10040494> , hdl:10013/epic.62882e04-5b28-4d72-846c-5476d339af29 |
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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1810455845011456000 |