Estuary Drainage Catchments for New South Wales, Australia

Estuary Drainage Catchments are hydrological boundaries for catchments draining to estuaries in New South Wales, Australia. The dataset includes line and polygon feature classes digitized from 1:25,000 topographic maps and coastline layers for the Stressed Rivers Assessments. It is provided by the NSW Department of Climate Change, Energy, the Environment and Water and was last updated in May 2026.

Use Cases

• Delineating watersheds for environmental impact assessments based on the described catchment boundaries.
• Modeling hydrological connectivity to estuaries using the line and polygon feature classes.
• Supporting water sharing plan processes by referencing the Stressed Rivers Assessments source.
• Identifying land draining directly to the sea using the 'nil estuary' labels mentioned in the description.

Strengths

• Includes two complementary spatial layers: a line feature class and a polygon feature class.
• Based on digitization from the 1:25,000 topographic map series, suggesting a defined scale.
• License is CC-BY-4.0, allowing for open use and sharing.
• Last updated on 2026-05-12, indicating recent maintenance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing solely on NSW.

Provenance

Source

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

Collection Method

Digitized from 1:25,000 topographic maps and coastline layers, modified by on-screen re-digitising for the Stressed Rivers Assessments.

Freshness

Last updated 2026-05-12 15:54:07.640523.

Geography

New South Wales, Australia