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Dataset Overview | National Centers for Environmental Information (NCEI)

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

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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.
  • Cite as: Korsgaard, Niels J.; Nuth, Christopher; Khan, Shfaqat A.; Kjeldsen, Kristian K.; Bjørk, Anders A.; Schomacker, Anders; Kjær, Kurt H. (2016). Digital Elevation Model and orthophotographs of Greenland based on aerial photographs from 1978-1987 (G150 AERODEM) (NCEI Accession 0145405). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v56q1v72. Accessed [date].
gov.noaa.nodc:0145405
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Distribution Formats
  • Originator data format
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 1978-07-01 to 1987-08-31
Spatial Bounding Box Coordinates
West: -73.5
East: -10
South: 59.5
North: 84
Spatial Coverage Map
General Documentation
Associated Resources
  • Korsgaard, N. J., Nuth, C., Khan, S. A., Kjeldsen, K. K., Bjørk, A. A., Schomacker, A., & Kjær, K. H. (2016). Digital elevation model and orthophotographs of Greenland based on aerial photographs from 1978–1987. Scientific Data, 3(1). https://doi.org/10.1038/sdata.2016.32
Publication Dates
  • publication: 2016-04-13
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
These data include a metadata subdirectory with the photo footprints as GIS shapefiles (.shp, .prj and associated indexing files); a DEM subdirectory containing .tif and .tfw files; an Orthorectified subdirectory containing .jp2 and .aux.xml files; and a ReliabilityMask subditrectory containing .tif and .tfw files.

Users are advised the total size of this data set is app. 36 GB.
Purpose The present DEM and orthophotograph was produced to facilitate investigations of ice sheet and glacier behavior. They also cover all ice-free terrain and coastal areas.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Korsgaard, Niels J.; Nuth, Christopher; Khan, Shfaqat A.; Kjeldsen, Kristian K.; Bjørk, Anders A.; Schomacker, Anders; Kjær, Kurt H. (2016). Digital Elevation Model and orthophotographs of Greenland based on aerial photographs from 1978-1987 (G150 AERODEM) (NCEI Accession 0145405). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v56q1v72. Accessed [date].
Cited Authors
  • Korsgaard, Niels J.
    Natural History Museum of Denmark, University of Copenhagen
  • Nuth, Christopher
    Department of Geosciences, University of Oslo
  • Khan, Shfaqat A.
    DTU Space - National Space Institute, Technical University of Denmark
  • Kjeldsen, Kristian K.
    Natural History Museum of Denmark, University of Copenhagen
  • Bjørk, Anders A.
    Natural History Museum of Denmark, University of Copenhagen
  • Schomacker, Anders
    Natural History Museum of Denmark, University of Copenhagen / Department of Geology, University of Tromsø
  • Kjær, Kurt H.
    Natural History Museum of Denmark
Contributors
Resource Providers
Points of Contact
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
Keywords NCEI ACCESSION NUMBER
Keywords Send2NCEI Submission Package ID
  • NF2Y88
Use Constraints
  • Cite as: Korsgaard, Niels J.; Nuth, Christopher; Khan, Shfaqat A.; Kjeldsen, Kristian K.; Bjørk, Anders A.; Schomacker, Anders; Kjær, Kurt H. (2016). Digital Elevation Model and orthophotographs of Greenland based on aerial photographs from 1978-1987 (G150 AERODEM) (NCEI Accession 0145405). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v56q1v72. Accessed [date].
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2016-04-13T23:57:03Z - NCEI Accession 0145405 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Data Type: Heights (measured); Units: m; Observation Type: other; Sampling Instrument: Wild RC10 aerial camera; Sampling and Analyzing Method: DEM produced from aerotriangulation of aerial photographs.; Data Quality Information: Korsgaard et al., 201X.
  • Data Type: Orthophoto (radiation) (measured); Units: black-and-white optical density (8 bit); Observation Type: other; Sampling Instrument: Wild RC10 aerial camera; Sampling and Analyzing Method: Orthophotos produced from aerotriangulation of aerial photographs.; Data Quality Information: Korsgaard et al., 201X.
Acquisition Information (collection)
Instrument
  • camera
  • photograph
Last Modified: 2025-02-08T16:59:33Z
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