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1 second SRTM Level 2 Derived Smoothed Digital Elevation Model (DEM-S) version 1.0

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Created 14/01/2025

Updated 14/01/2025

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The 1 second Shuttle Radar Topographic Mission (SRTM) derived smoothed Digital Elevation Model (DEM-S) Version 1.0 is a 1 arc second (~30m) gridded smoothed version of the DEM (ANZCW0703013355). The DEM-S represents ground surface topography, excluding vegetation features, and has been smoothed to reduce noise and improve the representation of surface shape. The dataset was derived from the 1 second Digital Elevation Model Version 1.0 (DSM; ANZCW0703013336) by an adaptive smoothing process that applies more smoothing in flatter areas than hilly areas, and more smoothing in noisier areas than in less noisy areas. This DEM-S supports calculation of local terrain shape attributes such as slope, aspect and curvatures that could not be reliably derived from the unsmoothed DEM because of noise. A full description of the methods is in progress (Gallant et al., in prep) and in the User Guide (Geoscience Australia & CSIRO, 2010).

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Title 1 second SRTM Level 2 Derived Smoothed Digital Elevation Model (DEM-S) version 1.0
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/11dd87b6-2cfd-43a9-b0cc-4cc3ecdf4987
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 11/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[113.0, -44.0], [154.0, -44.0], [154.0, -10.0], [113.0, -10.0], [113.0, -44.0]]]}
Data Portal data.gov.au