In: Origins of Life and Evolution of Biospheres, 2015, vol. 45, no. 3, p. 319-325
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In: Journal of Geodesy, 2015, vol. 89, no. 1, p. 33-48
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In: Remote Sensing, 2020, vol. 12, no. 10, p. 1563
Meltwater from the glaciers in High Mountain Asia plays a critical role in water availability and food security in central and southern Asia. However, observations of glacier ablation and accumulation rates are limited in spatial and temporal scale due to the challenges that are associated with fieldwork at the remote, high-altitude settings of these glaciers. Here, using a...
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In: Geomorphology, 2020, vol. 351, p. 106933
Catastrophic collapse of large rock slopes ranks as one of the most hazardous natural phenomena in mountain landscapes. The cascade of events, from rock- slope failure, to rock avalanche and the near-immediate release of debris flows has not previously been described from direct observations. We report on the 2017, 3.0 × 106 m3 failure on Pizzo Cengalo in Switzerland, which led to human...
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In: Cold Regions Science and Technology, 2019, vol. 165, p. 102788
The warming climate is changing the surface dynamics of the Greenland Ice Sheet, including the balance between snowfall and melt. Increasing surface melt impacts the structure of the relatively porous near-surface layer known as firn. Camp Century, a base abandoned in 1967, now comprises a subsurface debris field within the firn in Northwest Greenland. We collected 80 km of 100 or 250 MHz...
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In: Journal of Geodesy, 2014, vol. 88, no. 11, p. 1047-1060
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In: Science Advances, 2018, vol. 4, no. 11, p. eaar8173
We report the discovery of a large impact crater beneath Hiawatha Glacier in northwest Greenland. From airborne radar surveys, we identify a 31-kilometer-wide, circular bedrock depression beneath up to a kilometer of ice. This depression has an elevated rim that cross-cuts tributary subglacial channels and a subdued central uplift that appears to be actively eroding. From ground...
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In: Swiss Journal of Geosciences, 2010, vol. 103, no. 2, p. 283-292
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In: Environmental Management, 2009, vol. 43, no. 2, p. 299-310
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In: Journal of Geodesy, 2010, vol. 84, no. 10, p. 605-624
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