Potential Groundwater Dependent Ecosystem Map for Glenelg Hopkins CMA, Victoria
Updated 2mo ago
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Description
The Glenelg Hopkins Catchment Management Authority area in Victoria, Australia, is covered by this dataset mapping potential terrestrial Groundwater Dependent Ecosystems (GDEs). The Department of Energy, Environment and Climate Action created it using a GIS overlay model with satellite, geological, and groundwater data from circa 1995 to 2005. It identifies landscape locations where ecosystems are likely dependent on groundwater, serving as a first-step screening tool.
Use Cases
Screen for ecosystems potentially threatened by groundwater pumping or drainage based on identified GDE locations.
Prioritize field validation sites based on the model's identification of potential terrestrial GDEs and wetlands.
Inform regional conservation planning by overlaying GDE polygons with land-use or development maps.
Study vegetation growth patterns in dry periods using the underlying evapotranspiration data logic.
Strengths
Covers the entire state of Victoria, with a specific extract for the Glenelg Hopkins CMA.
Model integrates multiple data sources: satellite remote sensing, geological data, and groundwater monitoring.
Explicitly defines the four methodological criteria used for GDE identification.
Available in multiple geospatial file formats including SHP, GDB, and WFS.
Limitations
Model validation through field assessment has not been performed.
Core data used is from circa 1995 to 2005; current conditions may differ.
The methodology is expected to overestimate the extent of terrestrial GDEs.
Does not indicate the degree of groundwater dependence or the amount of groundwater used.
Provenance
Source
Department of Energy, Environment and Climate Action via data.gov.au
Collection Method
GIS overlay model utilizing satellite remote sensing, geological data, and groundwater monitoring data.
Time Range
Core modelling data is largely from circa 1995 to 2005.
Freshness
Last updated 2026-04-08 22:38:09.288944; freshness should be verified.