Glacier topography and elevation changes from Pléiades very high resolution stereo images
- Berthier, E.
- Vincent, C.
- Magnússon, E.
- Gunnlaugsson, A. P.
- Pitte, Pedro Miguel
- Le Meur, E.
- Masiokas, Mariano Hugo
- Ruiz, Lucas Ernesto
- Pálsson, F.
- Belart, J.M.C.
- Wagnon, P.
DOIAbstract
In response to climate change, most glaciers are losing mass and hence contribute to sea-level rise. Repeated and accurate mapping of their surface topography is required to estimate their mass balance and to extrapolate/calibrate sparse field glaciological measurements. In this study we evaluate the potential of Pléiades sub-meter stereo imagery to derive digital elevation models (DEMs) of glaciers and their elevation changes. Our five validation sites are located in Iceland, the European Alps, the Central Andes, Nepal and Antarctica. For all sites, nearly simultaneous field measurements were collected to evaluate the Pléiades DEMs. For Iceland, the Pléiades DEM is also 10 compared to a Lidar DEM. The vertical biases of the Pléiades DEMs ...
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