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National Gravity Compilation 2019 Ausdrape elevation ellipsoid grid

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Created 20/01/2025

Updated 20/01/2025

JSON RDF ISO19115-3 XML

Digital Elevation data record the terrain height variations from the processed SRTM surface elevation 3 second grid data with a drape surface overlain. This National Gravity Compilation 2019 Ausdrape elevation ellipsoid grid contains the elevation of the observation surface for the 2019 Australian National Gravity Grids B series relative to the GRS80 ellipsoid (GDA94 datum). These data are used in the project No. 202008. The grid has a cell size of 0.00417 degrees (approximately 435m). All data (i.e., ground, airborne and marine derived from satellite altimetry) were vertically continued to this surface during processing. The surface was generated to mimic a smooth airborne survey drape surface with a minimum surface clearance of 250 m and an isotropic maximum climb and descent rates of 25 m per km. The ground surface data were derived from SRTM data with 3 second grid cell size. The data are given in units of meters.

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Title National Gravity Compilation 2019 Ausdrape elevation ellipsoid grid
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/01e2f115-ff65-4dd3-94a4-e025c8c65844
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 19/06/2019 - 01/10/1947
Geospatial Coverage {"type": "Polygon", "coordinates": [[[107.9979, -48.0021], [164.0021, -48.0021], [164.0021, -7.9979], [107.9979, -7.9979], [107.9979, -48.0021]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "National Gravity Compilation 2019 Ausdrape elevation ellipsoid grid". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/national-gravity-compilation-2019-ausdrape-elevation-ellipsoid-grid

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