Australian International Maritime Treaty Boundaries, 2020 Epoch

Geoscience Australia delineates Australia's international maritime treaty boundaries in this geospatial dataset. The 2020 epoch includes the 2018 Australia Timor-Leste treaty and harmonized coordinates for the Australia-Indonesia boundaries. Coverage spans the Australian marine jurisdiction from approximately 8°S to 70°S latitude and 39°E to 174°E longitude.

Use Cases

• Mapping maritime zones for legal and jurisdictional analysis based on treaty-defined boundaries.
• Analyzing changes in maritime jurisdiction based on the inclusion of the 2018 Timor-Leste treaty.
• Integrating maritime boundaries into GIS systems for coastal and marine spatial planning.
• Validating maritime limits for navigation or resource management applications.

Strengths

• Developed by the primary authority, Geoscience Australia, in consultation with key government departments.
• Includes the 2018 Australia Timor-Leste Maritime Boundaries Treaty update.
• Coverage includes all external territories and a defined geographical extent.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Geoscience Australia, via the Australian Ocean Data Network.

Collection Method

Digital representation of international maritime boundary treaties.

Time Range

Currency June 2020.

Freshness

Currency is June 2020; metadata was last updated 2026-04-10.

Geography

Australian marine jurisdiction, including mainland, offshore islands, and External Territories, approximately 8°S to 70°S, 39°E to 174°E.