Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs ...

• Main Authors: Falk, Ulrike, Gieseke, Hilke, Kotzur, Franziska, Braun, Matthias Holger
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: File content; File format; Uniform resource locator/link to file; File size; Impact of climate induced glacier melt on marine coastal systems, Antarctica IMCOAST/IMCONet; Antarc*; Antarctic; Antarctic Peninsula; Antarctica; King George Island
• Online Access: https://dx.doi.org/10.1594/pangaea.853954; https://doi.pangaea.de/10.1594/PANGAEA.853954

Changes of glaciers and snow cover in polar regions affect a wide range of physical and ecosystem processes on land and in the adjacent marine environment. In this study, we investigate the potential of 11-day repeat high-resolution satellite image time series from the TerraSAR-X mission to derive glaciological and hydrological parameters on King George Island, Antarctica during the period Oct/25/2010 to Apr/19/2011. The spatial pattern and temporal evolution of snow cover extent on ice-free areas can be monitored using multi-temporal coherence images. SAR coherence is used to map glacier extent of land terminating glaciers with an average accuracy of 25 m. Multi-temporal SAR color composites identify the position of the late summer snow line at about 220 m above sea level. Glacier surface velocities are obtained from intensity feature-tracking. Surface velocities near the calving front of Fourcade Glacier were up to 1.8 ± 0.01 m/d. Using an intercept theorem based on fundamental geometric principles ... : Supplement to: Falk, Ulrike; Gieseke, Hilke; Kotzur, Franziska; Braun, Matthias Holger (2015): Monitoring snow and ice surfaces on King George Island, Antarctic Peninsula, with high-resolution TerraSAR-X time series. Antarctic Science, 15 pp ...