Australian Maritime Boundaries 2020: International Treaty Boundaries

June 2020 digital representation of Australia's international maritime treaty boundaries, including the 2018 Timor-Leste Treaty. The dataset was developed by Geoscience Australia in consultation with other Commonwealth agencies and covers the entire Australian marine jurisdiction from 8°S to 70°S and 39°E to 174°E. It is provided as an ESRI Geodatabase and REST web service, with coordinates in the GDA94 datum.

Use Cases

• Map jurisdictional zones for marine resource management based on treaty-defined boundaries.
• Analyze maritime claims and overlapping jurisdictions for geopolitical research.
• Serve as a basemap layer for maritime navigation and planning systems.
• Verify legal maritime extents for compliance and regulatory reporting.

Strengths

• Includes the 2018 Australia-Timor-Leste Maritime Boundaries Treaty update.
• Coverage includes all external territories and spans a defined geographical extent (8°S to 70°S, 39°E to 174°E).
• Developed by the authoritative national agency, Geoscience Australia, in consultation with other relevant government departments.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• In the event of inconsistency, the official treaty text prevails over the digital data.

Provenance

Source

Geoscience Australia Data

Collection Method

Primary delineation of maritime limits and boundaries by the national geoscience agency.

Time Range

Currency: June 2020.

Freshness

Last updated 2026-03-25 17:59:47.749658; freshness should be verified.

Geography

Australia including all external territories and adjacent waters.