Snow height data generated with a Structure-from-Motion photogrammetry approach at the EGRIP camp site in 2018 ...

• Main Authors: Zuhr, Alexandra, Münch, Thomas, Steen-Larsen, Hans Christian, Hörhold, Maria, Laepple, Thomas
• Format: Dataset
• Language: English
• Published: PANGAEA 2020
• Subjects: DATE/TIME; Binary Object; Binary Object Media Type; Binary Object File Size; Ice drill; Multiple investigations; GL-Land_2018_EGRIP; AWI Arctic Land Expedition; East Greenland Ice-core Project EGRIP; Polar Terrestrial Environmental Systems @ AWI AWI_Envi; Arctic; Greenland; East Greenland; East Greenland Ice-core Project; Greenland ice core; Greenland Ice core Project; ice core
• Online Access: https://dx.doi.org/10.1594/pangaea.923418; https://doi.pangaea.de/10.1594/PANGAEA.923418

The here stored snow height data are used to investigate the depositional processes of the snow surface by using a Structure-from-Motion photogrammetry approach to generate near-daily elevation models for a 195m^2 area next to the deep drilling site of the East Greenland Ice Core Project (EGRIP) in northeast Greenland. Based on the snow height information we derived snow height changes on a day-to-day basis throughout the observation period from May to August 2018. Specifically, the average snow height increased by ~11 cm throughout this period while the standard deviation and with this the surface roughness, decreased from 4 cm to 2 cm. Furthermore, we observed irregular snow deposition, erosion and the redistribution of snow, which caused an uneven snow accumulation pattern and resulted in a negative relationship between the initial snow height and the amount of accumulated snow. ...