Permafrost
Spatio-temporal variability of X-band radar backscatter and coherence over the Lena River Delta
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Antonova, Sofia; Kääb, Andreas; Heim, Birgit; Langer, Moritz; Boike, Julia (2017): One-year (2012-2013) TerraSAR-X backscatter and coherence stacks for different landscape types in the Lena River Delta, Siberia. PANGAEA, doi:10.1594/PANGAEA.873554
Related Journal Article
Antonova, S et al. (2016): Spatio-temporal variability of X-band radar backscatter and coherence over the Lena River Delta, Siberia. Remote Sensing of Environment, 182, 169-191, doi:10.1016/j.rse.2016.05.003.
Monitoring bedfast ice and ice phenology in lakes of the Lena River
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Datasets listed in this Collection
Antonova, Sofia; Duguay, Claude R; Kääb, Andreas; Heim, Birgit; Langer, Moritz; Westermann, Sebastian; Boike, Julia (2016): Monitoring bedfast ice and ice phenology in lakes of the Lena River Delta using TerraSAR-X backscatter and coherence time series. PANGAEA, doi:10.1594/PANGAEA.873586
Related Journal Article
Antonova, S et al. (2016): Monitoring bedfast ice and ice phenology in lakes of the Lena River Delta using TerraSAR-X backscatter and coherence time series. Remote Sensing, 8(11), 903, doi:10.3390/rs8110903
Disturbance: Top-cliff erosion (WP C8)
Permafrost landscapes are fragile environments. Disturbances and geohazards express themselves as landslides, active layer detachments, and thermo-erosion that can be monitored by satellite remote sensing. Thawing-induced cliff top retreat in permafrost landscapes is mainly due to thermo-erosion. Ground-ice-rich permafrost landscapes are specifically vulnerable to thermo-erosion and may show high degradation rates. High-temporal resolution time series of TerraSAR-X satellite data allow the inter-annual and intra-annual monitoring of the upper cliff-line retreat also under bad weather conditions and continuous cloud coverage. This data product contains the retreating upper cliff lines of a 1.5 km long part of eroding ice-rich coast of Kurungnakh Island in the central Lena Delta based on TerraSAR-X data from 2013-2014.
Data Publication:
Stettner, Samuel; Bartsch, Annett; Widhalm, Barbara; Heim, Birgit; Günther, Frank; Morgenstern, Anne; Roth, Achim; Chetverova, Antonina; Fedorova, Irina (2015): Retreat of top cliff of Kurungnakh Island, Lena Delta, Siberia, Russia, 2010-2014, with links to shapefiles. Alfred Wegener Institute - Research Unit Potsdam, http://doi.org/10.1594/PANGAEA.846164