Erosion rates of the Sobo-Sise yedoma permafrost cliff in the Lena River Delta derived from remote sensing imagery ...

• Main Authors: Nitze, Ingmar, Fuchs, Matthias, Strauss, Jens, Günther, Frank, Wetterich, Sebastian, Kizyakov, Alexander, Fritz, Michael, Opel, Thomas, Grigoriev, Mikhail N, Maksimov, Georgii T, Laboor, Sebastian, Grosse, Guido
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2020
• Subjects: cliff erosion; digital shoreline analysis system; erosion rates; Lena Delta; Permafrost; remote sensing; river delta; Time series; Carbon in Permafrost / Kohlenstoff im Permafrost KoPF; Changing Arctic Carbon cycle in the cOastal Ocean Near-shore CACOON; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation NUNATARYUK; Permafrost Research AWI_Perma; Polar Terrestrial Environmental Systems @ AWI AWI_Envi; Rapid Permafrost Thaw in a Warming Arctic and Impacts on the Soil Organic Carbon Pool PETA-CARB; Arctic; Fuchs; Peta; Ice; lena delta; lena river; permafrost; wedge*
• Online Access: https://dx.doi.org/10.1594/pangaea.918507; https://doi.pangaea.de/10.1594/PANGAEA.918507

Permafrost thaw and ice wedge degradation lead to drastic landscape changes in the permafrost region. With this data set we investigated the cliff retreat of the Sobo-Sise Cliff (SSC), a high ice-bearing yedoma cliff in the Lena River Delta. The 1,660 m long cliff SSC extends from 72°32'34 N / 128°15'59 E to 72°32'06 N / 128°18'21 E and is located on the Sardakhskaya channel, which is one of the main Lena river branches in the Lena River Delta. Erosion rates for the SSC were determined based on satellite images from different sensors (Corona, Hexagon, Landsat, Planet cube-sat) for the period 1965-2018. Cliff front lines were manually digitized and erosion rates were calculated with the Digital Shoreline Analysis System (DSAS) tool (Himmelstoos et al. 2018). The study Fuchs et al. (2020) (doi:10.3389/feart.2020.00336) shows that the up to 27.7 m high SSC erodes in average 15.7 m yr-1 (2015-2018). During the entire observed time period from 1965-2018, the SSC retreated in average 484 m (ranging from 322 - 680 ...