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PANGAEA.
Data Publisher for Earth & Environmental Science

Runge, Alexandra; Nitze, Ingmar; Grosse, Guido (2022): Annual dynamics of rapid permafrost disturbances in Northeast Siberia. PANGAEA, https://doi.org/10.1594/PANGAEA.941479

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Abstract:
Permafrost is warming globally which leads to widespread permafrost thaw. Particularly ice-rich permafrost is vulnerable to rapid thaw and erosion, impacting whole landscapes and ecosystems. Abrupt permafrost disturbances, such as retrogressive thaw slumps (RTS), expand by several meters each year and lead to an increased soil organic carbon release. We applied the disturbance detection algorithm LandTrendr for automated large-scale RTS mapping and high temporal thaw dynamic assessment to Northeast Siberia (8.1 × 10^6km^2). We adapted and parametrised the temporal segmentation algorithm for abrupt disturbance detection to incorporate Landsat+Sentinel-2 mosaics, conducted spectral filtering, spatial masking and filtering, and a binary machine-learning object classification of the disturbance output to separate between RTS and false positives (F1 score: 0.61). Ground truth data for calibration and validation of the workflow was collected from 9 known RTS cluster sites using very high-resolution RapidEye and PlanetScope imagery. The data set presents the results of the first automated detection and assessment of RTS and their temporal dynamics at large-scale for 2001–2019. We identified 50,895 RTS and a steady increase in RTS-affected area from 2001 to 2019 across Northeast Siberia, with a more abrupt increase from 2016 onward. Overall the RTS-affected area increased by 331% compared to 2000 (2000: 20,158 ha, 2001-2019: 66,699 ha). Contrary to this, focus sites show spatio-temporal variability in their annual RTS dynamics, with alternating periods of increased and decreased RTS development, indicating a close relationship to thaw drivers. The detected increase in RTS dynamics suggests advancing permafrost thaw and underlines the importance of assessing abrupt permafrost disturbances with high spatial and temporal resolution at large-scales. This consistenly obtained disturbance product will help to parametrise regional and global climate change models.
Keyword(s):
Landsat; permafrost; permafrost disturbance; permafrost thaw; Retrogressive Thaw Slumps; Sentinel-2; Time series
Supplement to:
Runge, Alexandra; Nitze, Ingmar; Grosse, Guido (2022): Remote sensing annual dynamics of rapid permafrost thaw disturbances with LandTrendr. Remote Sensing of Environment, 268, 112752, https://doi.org/10.1016/j.rse.2021.112752
Project(s):
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0764B: Verbundprojekt: WTZ Russland - KoPf; Kohlenstoffumsatz und Treibhausgasfreisetzung aus tauendem Permafrost Nordostsibiriens unter sich ändernden Umwelt- und Klimabedingungen
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0834: Verbundprojekt: WTZ Russland - KoPf-Synthese: Kohlenstoffumsatz und Treibhausgasfreisetzung aus tauendem Permafrost Nordostsibiriens
National Science Foundation (NSF), grant/award no. 1927920: NNA Track 1: The Permafrost Discovery Gateway
Coverage:
Median Latitude: 67.093045 * Median Longitude: 129.162185 * South-bound Latitude: 59.994431 * West-bound Longitude: 78.977604 * North-bound Latitude: 77.216511 * East-bound Longitude: -170.326411
Minimum ORDINAL NUMBER: 0 * Maximum ORDINAL NUMBER: 50894
Event(s):
NE_Siberia * Latitude Start: 60.000000 * Longitude Start: -178.000000 * Latitude End: 78.000000 * Longitude End: 180.000000 * Location: Siberia * Method/Device: Sampling/measurement on land (LAND)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1ORDINAL NUMBEROrd NoRunge, AlexandraGeocode
2IdentificationIDRunge, Alexandra
3DescriptionDescriptionRunge, AlexandraGeometry
4LONGITUDELongitudeRunge, AlexandraGeocode
5LATITUDELatitudeRunge, AlexandraGeocode
6Time coverageCoverageRunge, Alexandrafirst year
7Time coverageCoverageRunge, Alexandralast year
8Number of yearsYearsaRunge, Alexandraactivity duration
9Number of pixelsNo pix#Runge, Alexandraof area
10Area in hectareAreahaRunge, Alexandra
11Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2000
12Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2001
13Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2002
14Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2003
15Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2004
16Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2005
17Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2006
18Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2007
19Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2008
20Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2009
21Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2010
22Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2011
23Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2012
24Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2013
25Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2014
26Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2015
27Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2016
28Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2017
29Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2018
30Permafrost area, retrogressive thaw slump affectedRTS-affected areahaRunge, Alexandrain 2019
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1373288 data points

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