Water Modelling-Modelled Data-Long-term Average Annual Extraction Limit (LTAAEL)

Long-term average annual extraction limit (LTAAEL) data for New South Wales river systems, published by the NSW Department of Climate Change, Energy, the Environment and Water. The dataset contains modelled flow data at several gauges, generated annually to assess compliance with water sharing plans. It was last updated on 2026-05-13.

Use Cases

• Assess compliance of water extractions with regulatory limits based on the LTAAEL model.
• Compare modelled flows under water sharing plan conditions with other scenarios like annual permitted take.
• Identify river systems where long-term average annual extractions exceed the sustainable limit.
• Support reviews of water sharing plans by the Natural Resources Commission and the Murray-Darling Basin Authority.

Strengths

• Data is modelled annually using the best available models, as stated in the description.
• Flows are simulated for several gauges in each river system, providing spatial coverage.
• The dataset is published by a government department (NSW Department of Climate Change, Energy, the Environment and Water).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The model has inherent limitations, as acknowledged in the description.

Provenance

Source

NSW Department of Climate Change, Energy, the Environment and Water

Collection Method

Modelled data generated by an annually extended LTAAEL model configured to represent water sharing plan rules.

Freshness

Last updated 2026-05-13 06:53:02.249540; freshness should be verified.

Geography

River systems in New South Wales, Australia.