Digital Elevation Model and orthophotographs of Greenland based on aerial photographs from 1978-1987 (G150 AERODEM) (NCEI Accession 0145405) ...

• Main Authors: Korsgaard, Niels J., Nuth, Christopher, Khan, Shfaqat A., Kjeldsen, Kristian K., Bjørk, Anders A., Schomacker, Anders, Kjær, Kurt H.
• Format: Dataset
• Language: unknown
• Published: NOAA National Centers for Environmental Information 2016
• Subjects: Greenland; Ice Sheet
• Online Access: https://dx.doi.org/10.7289/v56q1v72; https://www.ncei.noaa.gov/archive/accession/0145405

Here, we present a medium-resolution DEM and orthophotographs that consistently cover the entire surroundings and margins of the Greenland Ice Sheet 1978-1987. About 3,500 aerial photographs of Greenland are combined with field surveyed geodetic ground control to produce a 25 m gridded DEM and a 2 m black-and-white digital orthophotograph. Supporting data consist of a reliability mask and a photo footprint coverage with assigned recording dates. Through one internal and two external validation tests, this DEM shows an accuracy better than 10 m horizontally and 6 m vertically while the precision is better than 4 m. ...