DEM-H: Australian SRTM Hydrologically Enforced Digital Elevation Model (AU/GA/DEM_1SEC/v10/DEM-H)

Version 1.0

The Hydrologically Enforced Digital Elevation Model (DEM-H) was derived from the SRTM data acquired by NASA in February 2000. The model has been hydrologically conditioned and drainage enforced. The DEM-H captures flow paths based on SRTM elevations and mapped stream lines, and supports delineation of catchments and related hydrological attributes. The dataset was derived from the 1 second smoothed Digital Elevation Model (DEM-S; ANZCW0703014016) by enforcing hydrological connectivity with the ANUDEM software, using selected AusHydro V1.6 (February 2010) 1:250,000 scale watercourse lines (ANZCW0503900101) and lines derived from DEM-S to define the watercourses. The drainage enforcement has produced a consistent representation of hydrological connectivity with some elevation artefacts resulting from the drainage enforcement. A full description of the methods is in preparation (Dowling et al., in prep).

This product provides a DEM suitable for use in hydrological analysis such as catchment definition and flow routing.

NameDescriptionGee Unit


Geoscience Australia (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.0
Keywords australia, dem, elevation, ga, geophysical, geoscience_australia, smoothed, srtm
License proprietary
Temporal Extent 1/31/2010, 4:00:00 PM - 1/31/2010, 4:00:00 PM
Citation Geoscience Australia, 2015. Digital Elevation Model (DEM) of Australia derived from LiDAR 5 Metre Grid. Geoscience Australia, Canberra.
Type image
GSD arc secondm