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- 2019 CSDMS meeting-109 + (Glacial lake outburst floods pose an incre … Glacial lake outburst floods pose an increasing hazard to communities living downstream of glaciated areas. The Northern Patagonia Icefield has experienced catastrophic glacial lake outburst floods (GLOFs), and understanding past events will help to understand and prepare for future events. This region is vastly understudied, and much research remains to be completed to thoroughly understand such complex phenomena such as GLOFs. Satellite imagery, supplemented by high-resolution UAV imagery derived 3D models, are used to understand the hydrodynamics of a GLOF which took place March 16, 1989, in the Valle Soler of the Northern Patagonia Icefield. Using the 3D model and satellite-derived digital elevation model, flood parameters are calculated in order to describe the 1989 Soler GLOF. The results of this analysis are used to understand mass extraction and gradational fining of moraine material in Valle Soler. Blocks of rock, exceeding 10m, are found throughout the valley and a comparison of peak discharge and the necessary force to deposit the blocks are discussed.force to deposit the blocks are discussed.)
