About the Geofabric
Geofabric
The enduring nature of the Geofabric is based on a set of contracted nodes (points) which represent important hydrological features in the landscape.
These points have a permanent identifier included in all versions of the Geofabric, and provide a persistent framework through space and time.
A subset of the contracted nodes is used to create a simplified node-link network with associated contracted catchments.
Our Information Sheet offers an overview of the Geofabric.(312Kb).
Version 3.2 is available as a National dataset based on improved scales of mapped features and the 1 second digital elevation model (DEM), and comprises the following 5 products:
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Geofabric Surface Cartography
Cartographic representation of surface hydrological features, based on best available mapped features, approximating 1:100,000 scale. -
Geofabric Surface Network
Network representation of hydrological features, including over 2.5 million stream segments and 6000 gauging stations, which can be used with the Geofabric Toolset. -
Geofabric Surface Catchments
Catchment boundaries derived from the 1 second Digital Elevation Model, with ~7 million base level catchments. -
Geofabric Hydrology Reporting Catchments
Contracted nodes, contracted catchments and node-link network, including contracted nodes that represent important gauging stations. -
Geofabric Hydrology Reporting Regions
Reporting regions based on aggregations of contracted catchments, similar to 1997 Australian Water Resource Council (AWRC) boundaries.
The next V3.3 release will realise a full suite of 6 products, with the inclusion of an updated Groundwater Cartography product, planned for release end of 2021.
National version 2.1.1 is still available based on 1:250,000 scale mapped features and the 9 second digital elevation model (DEM), comprising 6 products, including Groundwater Cartography.
