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

Modelled flow data for gauges in the Lachlan river system, used to assess compliance with long-term average annual extraction limits (LTAAEL). The data is produced by the NSW Department of Climate Change, Energy, the Environment and Water using annually updated hydrological models configured to represent water sharing plan rules. Outcomes of the annual compliance assessment are published on the department's website.

Use Cases

• Assess regulatory compliance by comparing modelled long-term average annual extractions (LTAAEs) against the LTAAEL.
• Analyze the impact of water sharing plan rules on river system flows using simulated gauge data.
• Compare water availability scenarios by contrasting flows from the LTAAEL model with outputs from other models like the annual permitted take (APT) model.
• Support environmental policy review by providing data on extraction limits and sustainability targets.

Strengths

• Data is modelled annually using the best available models, as stated in the description.
• The dataset is intended as a fair representation of expected flows under water sharing plan operation and development conditions.
• Published by the authoritative 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 description acknowledges the model's inherent limitations.

Provenance

Source

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

Collection Method

Simulated by an annually extended LTAAEL hydrological model configured to represent water sharing plan rules.

Freshness

Last updated 2026-05-12 15:19:56.256342; freshness should be verified.

Geography

Lachlan river system, New South Wales, Australia