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.

Our Information Sheet offers an overview of the Geofabric.(312Kb).

The Geofabric will evolve in phases over 10 years. Version 2, is now available and comprises:

  1. Geofabric Surface Cartography
    Cartographic representation of surface hydrological features

  2. Geofabric Surface Network
    Network representation of hydrological features

  3. Geofabric Surface Catchments
    Catchment boundaries derived from the 9 second Digital Elevation Model

  4. Geofabric Groundwater Cartography
    Cartographic representation of groundwater hydrology features

  5. Geofabric Hydrology Reporting Catchments
    Contracted nodes, contracted catchments and node-link network

  6. 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

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