GDE Probability NSW: Groundwater-Dependent Ecosystem Likelihood Map

GDE Probability NSW is a geospatial dataset mapping the likelihood of groundwater-dependent ecosystems across New South Wales, Australia. It was published by the NSW Department of Climate Change, Energy, Environment and Water on August 28, 2024. The data is served via an ArcGIS REST API and is referenced to the WGS84/GDA94 coordinate systems.

Use Cases

• Identify areas of high ecological sensitivity to groundwater extraction based on the probability layer.
• Model hydrological connectivity between surface ecosystems and aquifers using the geospatial data.
• Inform land-use planning and conservation efforts by mapping likely groundwater-dependent ecosystems.
• Support water allocation decisions by assessing potential impacts on dependent ecosystems.

Strengths

• Data has a specific publication and currency date of August 28, 2024.
• Spatial reference systems (WGS84 and EPSG:3857) are explicitly defined.
• Data is openly accessible via a documented ArcGIS REST API.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial resolution are unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection.

Provenance

Source

NSW Department of Climate Change, Energy, Environment and Water

Collection Method

Likely derived from remote sensing, hydrological, and ecological models (HEVAE).

Freshness

Data Update Frequency is listed as API, with a last platform update recorded on 2026-05-28.

Geography

New South Wales, Australia