Long-term Average Annual Extraction Limits for Hunter River System

Modelled data for assessing compliance with long-term average annual extraction limits (LTAAEL) in the Hunter river system of New South Wales, Australia. The dataset contains simulated flows at several gauges, produced by the NSW Department of Climate Change, Energy, the Environment and Water. It is updated annually and was last published on 2026-05-12.

Use Cases

• Assess regulatory compliance by comparing modelled long-term average annual extractions (LTAAE) against the LTAAEL.
• Analyze the impact of water sharing plan rules on river system flows using the LTAAEL model outputs.
• Compare water availability scenarios by contrasting flows from the LTAAEL model with those from the annual permitted take (APT) or without development (WOD) models.

Strengths

• Data is modelled annually using the best available models, as stated in the description.
• Flows are simulated at several gauges within each river system, providing spatial detail.
• The dataset is directly linked to formal regulatory compliance assessment processes for water sharing plans.

Limitations

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

Provenance

Source

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

Collection Method

Modelled using an annually extended LTAAEL model configured to represent water sharing plan rules.

Freshness

Last updated 2026-05-12 18:12:35.434882; freshness should be verified.

Geography

Hunter river system, New South Wales, Australia