Potential Groundwater Dependent Ecosystem Map for the Corangamite CMA Region

Potential Groundwater Dependent Ecosystems (GDEs) are identified across Victoria's Corangamite CMA using a GIS overlay model integrating satellite, geological, and groundwater data from circa 1995-2005. The Department of Energy, Environment and Climate Action produced this dataset as a first step in locating ecosystems potentially reliant on groundwater. The mapping indicates locations but does not quantify the degree of dependence or groundwater usage.

Use Cases

• Prioritizing field validation sites based on mapped potential GDE locations.
• Assessing regional landscape vulnerability to groundwater depletion based on ecosystem indicators.
• Integrating with hydrological models to understand surface water-groundwater interactions.
• Supporting land-use planning to protect ecosystems identified as potentially groundwater-dependent.

Strengths

• Integrates multiple data sources: satellite remote sensing, geological data, and groundwater monitoring.
• Covers the entire state of Victoria, with a specific layer for the Corangamite CMA area.
• Method is explicitly defined based on four key characteristics of potential GDEs.

Limitations

• Model validation through field assessment has not been performed.
• Core data used is largely from 1995-2005; current conditions may differ.
• The methodology is expected to overestimate the extent of terrestrial GDEs.

Provenance

Source

Department of Energy, Environment and Climate Action

Collection Method

GIS overlay model utilizing satellite remote sensing, geological, and groundwater monitoring data.

Time Range

Core data circa 1995 to 2005.

Freshness

Last updated 2026-04 08 22:13:05.829297; freshness should be verified.

Geography

Corangamite Catchment Management Authority (CMA) area, Victoria, Australia.