Australian Maritime Boundaries 2020: International Treaty Boundaries

Geoscience Australia delineates Australia's maritime limits and boundaries. Treaties - Australian Maritime Boundaries Dataset 2020 is a digital representation of Australia's international treaty boundaries, updated to include the 2018 Australia Timor-Leste Maritime Boundaries Treaty. The data covers Australia's marine jurisdiction, including waters adjacent to the mainland, offshore islands, and External Territories.

Use Cases

• Mapping maritime zones for legal and administrative purposes based on treaty boundaries.
• Analyzing jurisdictional overlaps for resource management based on the Area of Overlapping Jurisdiction.
• Updating nautical charts and navigation systems based on harmonized coordinates to WGS84.
• Studying changes in international maritime agreements based on the inclusion of the 2018 Timor-Leste Treaty.

Strengths

• Data is published by Geoscience Australia in consultation with relevant Commonwealth Government agencies.
• Includes a specific update for the 2018 Australia Timor-Leste Maritime Boundaries Treaty.
• Coverage includes the whole of Australian marine jurisdiction, spanning latitudes 8°S to 70°S and longitudes 39°E to 174°E.
• Coordinates are provided in the GDA94 datum, functionally equivalent to WGS84.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing solely on Australian jurisdiction.

Provenance

Source

Geoscience Australia, Australian Ocean Data Network

Collection Method

Developed as part of the delineation of Australia's domestic and international maritime limits and boundaries.

Freshness

Currency is June 2020.

Geography

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