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Uav-Based Remote Sensing Of Immediate Changes In Geomorphology Following A Glacial Lake Outburst Flood At The Zackenberg River, Northeast Greenland, Aleksandra M. Tomcyzk, Marek W. Ewertowski

Environment and Society Student Research

Two detailed geomorphological maps (1:2000) depicting landscape changes as a result of a glacial lake outburst flood were produced for the 2.1-km-long section of the Zackenberg river, NE Greenland. The maps document the riverscape before the flood (5 August 2017) and immediately after the flood (8 August 2017), illustrating changes to the riverbanks and morphology of the channel. A series of additional maps (1:800) represent case studies of different types of riverbank responses, emphasising the importance of the lateral thermo-erosion and bank collapsing as significant immediate effects of the flood. The average channel width increased from 40.75 m pre-flood to …