Thaw Subsidence of a Yedoma Landscape in Northern Siberia, Measured In Situ and Estimated from TerraSAR-X Interferometry
dc.contributor.author | Antonova, Sofia | |
dc.contributor.author | Sudhaus, Henriette | |
dc.contributor.author | Strozzi, Tazio | |
dc.contributor.author | Zwieback, Simon | |
dc.contributor.author | Kääb, Andreas | |
dc.contributor.author | Heim, Birgit | |
dc.contributor.author | Langer, Moritz | |
dc.contributor.author | Bornemann, Niko | |
dc.contributor.author | Boike, Julia | |
dc.date.accessioned | 2019-08-29T10:57:30Z | |
dc.date.available | 2019-08-29T10:57:30Z | |
dc.date.issued | 2018-03-21 | none |
dc.date.updated | 2019-07-31T17:57:27Z | |
dc.identifier.uri | http://edoc.hu-berlin.de/18452/21223 | |
dc.description.abstract | 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. | eng |
dc.language.iso | eng | none |
dc.publisher | Humboldt-Universität zu Berlin | |
dc.rights | (CC BY 4.0) Attribution 4.0 International | ger |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.subject | permafrost | eng |
dc.subject | thaw subsidence | eng |
dc.subject | in situ measurements | eng |
dc.subject | DInSAR | eng |
dc.subject | TerraSAR-X | eng |
dc.subject | Lena River Delta | eng |
dc.subject | yedoma | eng |
dc.subject.ddc | 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten | none |
dc.title | Thaw Subsidence of a Yedoma Landscape in Northern Siberia, Measured In Situ and Estimated from TerraSAR-X Interferometry | none |
dc.type | article | |
dc.identifier.urn | urn:nbn:de:kobv:11-110-18452/21223-5 | |
dc.identifier.doi | http://dx.doi.org/10.18452/20455 | |
dc.type.version | publishedVersion | none |
local.edoc.pages | 27 | none |
local.edoc.type-name | Zeitschriftenartikel | |
local.edoc.container-type | periodical | |
local.edoc.container-type-name | Zeitschrift | |
dc.description.version | Peer Reviewed | none |
dc.identifier.eissn | 2072-4292 | |
dcterms.bibliographicCitation.doi | 10.3390/rs10040494 | none |
dcterms.bibliographicCitation.journaltitle | Remote Sensing | none |
dcterms.bibliographicCitation.volume | 10 | none |
dcterms.bibliographicCitation.issue | 4 | none |
dcterms.bibliographicCitation.articlenumber | 494 | none |
dcterms.bibliographicCitation.originalpublishername | MDPI | none |
dcterms.bibliographicCitation.originalpublisherplace | Basel | none |
bua.import.affiliation | Antonova, Sofia; Periglacial Research Section, Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, 14473 Potsdam, Germany, GIScience Research Group, Institute of Geography, Heidelberg University, 69117 Heidelberg, Germany, | none |
bua.import.affiliation | Sudhaus, Henriette; Institute of Geosciences, Christian-Albrechts-University, 24118 Kiel, Germany, | none |
bua.import.affiliation | Strozzi, Tazio; Gamma Remote Sensing, CH-3073 Gümligen, Switzerland, | none |
bua.import.affiliation | Zwieback, Simon; Department of Geography, University of Guelph, Guelph, ON N1G 2W1, Canada, | none |
bua.import.affiliation | Kääb, Andreas; Department of Geosciences, University of Oslo, 0315 Oslo, Norway, | none |
bua.import.affiliation | Heim, Birgit; Periglacial Research Section, Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, 14473 Potsdam, Germany, | none |
bua.import.affiliation | Langer, Moritz; Periglacial Research Section, Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, 14473 Potsdam, Germany, Department of Geography, Humboldt University of Berlin, 10099 Berlin, Germany, | none |
bua.import.affiliation | Bornemann, Niko; Periglacial Research Section, Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, 14473 Potsdam, Germany, | none |
bua.import.affiliation | Boike, Julia; Periglacial Research Section, Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, 14473 Potsdam, Germany, Department of Geography, Humboldt University of Berlin, 10099 Berlin, Germany, | none |
bua.department | Mathematisch-Naturwissenschaftliche Fakultät | none |