About the 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.
The Geofabric will evolve in phases over 10 years. Version 2, is now available and comprises:
Geofabric Surface Cartography
Cartographic representation of surface hydrological features
Geofabric Surface Network
Network representation of hydrological features
Geofabric Surface Catchments
Catchment boundaries derived from the 9 second Digital Elevation Model
Geofabric Groundwater Cartography
Cartographic representation of groundwater hydrology features
Geofabric Hydrology Reporting Catchments
Contracted nodes, contracted catchments and node-link network
Geofabric Hydrology Reporting Regions
Reporting regions based on aggregations of contracted catchments.
Subsequent versions of the Geofabric will have upgrades to data and include:
- hydrometric monitoring features
- more detailed surface water hydrology
- Digital Elevation Model (DEM) derived streams and catchment boundaries based on a 1 second resolution DEM