Victorian Estuarine Catchment Boundaries for the 2021 Index of Estuarine Condition

A 2021 update of catchment boundaries that drain directly to estuaries in Victoria, Australia. The dataset was created by the Department of Energy, Environment and Climate Action, using a digital elevation model (DEM) and cross-referenced with existing DELWP boundaries. Final boundaries were determined by selecting the most accurate line between DEM-derived and DELWP-derived data for contested areas.

Use Cases

• Modeling pollutant runoff into estuaries based on the defined catchment boundaries.
• Assessing estuarine condition for environmental indices based on the updated spatial data.
• Comparing DEM-derived hydrological boundaries with administrative boundaries for accuracy studies.
• Planning land-use and conservation strategies in coastal regions based on the catchment delineations.

Strengths

• Boundaries were updated for a specific 2021 environmental index, indicating a defined purpose.
• Methodology is described, involving comparison between DEM-derived and DELWP-derived boundaries.
• Available under a permissive CC-BY-4.0 license for reuse.

Limitations

• Row count and column definitions are unknown, limiting suitability assessment.
• The description notes discrepancies in boundary accuracy on flatter terrain.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Department of Energy, Environment and Climate Action (Victoria, Australia).

Collection Method

Boundaries determined from a digital elevation model (DEM) and compared/adjusted against existing DELWP administrative boundaries.

Time Range

Created for the 2021 Index of Estuarine Condition.

Freshness

Last updated 2026-04 08 23:18:24.279312; freshness should be verified.

Geography

Estuarine catchments in the state of Victoria, Australia.