Data provided by National Oceanic and Atmospheric Administration
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.
About this Dataset
Updated: 2024-02-22
Metadata Last Updated:
2025-11-19T15:45:01.552Z
Date Created:
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| Title | Digital Elevation Model and orthophotographs of Greenland based on aerial photographs from 1978-1987 (G150 AERODEM) (NCEI Accession 0145405) |
|---|---|
| Description | 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. |
| Modified | 2025-11-19T15:45:01.552Z |
| Publisher Name | N/A |
| Contact | N/A |
| Keywords | 0145405 , HABITAT , camera , photograph , model output , University of Copenhagen , University of Copenhagen , Baffin Bay , Davis Strait , Greenland Sea (including Iceland Sea and North Greenland Sea) , Labrador Sea , North Atlantic Ocean , North Greenland Sea , oceanography , CAMERA > CAMERA , OCEAN > ARCTIC OCEAN , OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN , OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > DAVIS STRAIT , NF2Y88 , environment , oceans , biota |
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