Seawater Interface Elevation Contours for Cockburn Superficial Aquifer

Geographic contours show the elevation of the seawater interface within the Superficial aquifer in the Cockburn groundwater area. The dataset is derived from an assessment of data from 2018 to 2019, documented in Hydrogeological Report HR443. It is sourced from the Statewide seawater interface project funded by the Government of Western Australia.

Use Cases

• Model seawater intrusion dynamics using the seawater interface elevation contours and tidal movement factors.
• Analyze the impact of groundwater abstraction and recharge on the location of the seawater interface.
• Map the spatial extent of saline groundwater within the Superficial aquifer using the geographic location data.
• Assess seasonal variability in the seawater interface position by incorporating time of year factors.

Strengths

• Data is derived from a formal assessment documented in a 2024 hydrogeological report (HR443).
• Covers a defined temporal period from 2018 to 2019.
• Provides multiple geospatial file formats including SHP, GEOJSON, and GEOPACKAGE for flexibility.

Limitations

• The location of the seawater interface is dynamic and can change due to tidal movements, abstraction, and recharge, limiting static representation.
• Sample data and specific row/column counts are unavailable, preventing assessment of dataset scale and structure.

Provenance

Source

Department of Water and Environmental Regulation, Western Australia.

Collection Method

Derived location based on an assessment of data; detailed methods in report HR443.

Time Range

Assessment period: 2018 to 2019.

Freshness

Data was last updated in March 2026, but the underlying assessment period is 2018-2019.

Geography

Cockburn groundwater area, Western Australia.