Australian International Maritime Treaty Boundaries, 2020 Update

Geoscience Australia's digital representation of Australia's international maritime treaty boundaries. The dataset covers the entire Australian marine jurisdiction, including waters adjacent to the mainland, offshore islands, and External Territories, and was updated in June 2020 to include the 2018 Australia Timor-Leste treaty. Data is provided in ESRI Geodatabase format and as a REST web service.

Use Cases

• Mapping maritime jurisdictions for legal or policy analysis based on treaty-defined boundaries.
• Analyzing changes in maritime zones based on the inclusion of the 2018 Australia Timor-Leste Treaty.
• Integrating treaty boundaries with other marine spatial data for environmental or resource management planning.

Strengths

• Updated to include the 2018 Australia Timor-Leste Maritime Boundaries Treaty.
• Developed by Geoscience Australia in consultation with other relevant Commonwealth Government agencies.
• Provides coverage for the whole of the Australian marine jurisdiction, from approximately 8°S to 70°S and 39°E to 174°E.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale computational tasks.

Provenance

Source

Geoscience Australia Data

Collection Method

Delineation of Australia's domestic and international maritime limits and boundaries.

Time Range

Currency: June 2020.

Freshness

Currency: June 2020. Last metadata update: 2026-04-30.

Geography

Australia including all external territories, approximately between 8°S to 70°S and 39°E to 174°E.