Data

Geophysical Data Collection - elevation

Geoscience Australia
Geoscience Australia
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/74515&rft.title=Geophysical Data Collection - elevation&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/74515&rft.publisher=Geoscience Australia&rft.description=Digital Elevation Model data record the terrain height variations from the processed point-located data recorded on an airborne geophysical survey. The aircraft altimeter data records the height of the aircraft above the ground and the aircraft GPS records the height of the aircraft above the ellipsoid. Subtracting the two values enables the height of the terrain beneath the aircraft relative to the ellipsoid to be calculated. This ellipsoidal terrain height is corrected for the variation between the ellipsoid and the geoid (the n-value correction) to produce terrain heights relative to sea level.Maintenance and Update Frequency: asNeededStatement: The DEM data of Australia contains elevation data recorded during several airborne geophysical surveys by Commonwealth, State and Northern Territory Governments, and the private sector. Additional data from open source are also added to the collection.&rft.creator=Geoscience Australia &rft.date=2008&rft.coverage=westlimit=90; southlimit=-55; eastlimit=175; northlimit=-9&rft.coverage=westlimit=90; southlimit=-55; eastlimit=175; northlimit=-9&rft_rights=Special, MOU, etc.&rft_rights=SPC&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Special, MOU, etc.&rft_subject=geoscientificInformation&rft_subject=geophysics&rft_subject=Digital Elevation Model&rft_subject=AU-EEZ&rft_subject=GEOPHYSICS&rft_subject=EARTH SCIENCES&rft_subject=Geophysical Data Collection&rft_subject=Airborne Digital Data&rft_subject=NCI&rft_subject=DC2020&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Brief description

Digital Elevation Model data record the terrain height variations from the processed point-located data recorded on an airborne geophysical survey. The aircraft altimeter data records the height of the aircraft above the ground and the aircraft GPS records the height of the aircraft above the ellipsoid. Subtracting the two values enables the height of the terrain beneath the aircraft relative to the ellipsoid to be calculated. This ellipsoidal terrain height is corrected for the variation between the ellipsoid and the geoid (the n-value correction) to produce terrain heights relative to sea level.

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Maintenance and Update Frequency: asNeeded
Statement: The DEM data of Australia contains elevation data recorded during several airborne geophysical surveys by Commonwealth, State and Northern Territory Governments, and the private sector. Additional data from open source are also added to the collection.

Issued: 2008

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175,-9 175,-55 90,-55 90,-9 175,-9

132.5,-32

text: westlimit=90; southlimit=-55; eastlimit=175; northlimit=-9

Subjects
AU-EEZ | Airborne Digital Data | DC2020 | Digital Elevation Model | Earth Sciences | Geophysics | Geophysical Data Collection | NCI | Published_External | geophysics | geoscientificInformation |

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Geophysical Archive Data Delivery System (Related Product)

uri : http://www.geoscience.gov.au/gadds

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