Australian Maritime Boundaries 2020: Territorial Limits and Jurisdictional Zones

Geoscience Australia's Australian Maritime Boundaries (AMB) 2020 data provides a digital representation of Australia's domestic and international maritime limits and boundaries. The dataset includes territorial baselines, outer limits of maritime zones, and treaty boundaries with neighboring countries, covering waters adjacent to the mainland, offshore islands, and External Territories. Data currency is December 2020, with coordinates supplied in the GDA94 datum.

Use Cases

• Delineating jurisdictional zones for resource exploration based on the limits defined in the Offshore Petroleum and Greenhouse Gas Storage Act 2006.
• Mapping territorial sea baselines and exclusive economic zones for maritime law and policy analysis.
• Analyzing treaty boundaries with neighboring countries for international relations and maritime security studies.
• Visualizing the scheduled and offshore areas of Australian States and the Northern Territory for coastal management planning.

Strengths

• Official data product from Geoscience Australia, developed in consultation with other Commonwealth Government agencies.
• Covers the entire Australian marine jurisdiction, with a geographical extent from approximately 7°S to 70°S and 40°E to 175°E.
• Replaces the previous AMB2014a version, with a stated currency of December 2020.

Limitations

• Description metadata is limited; actual data quality and structure require manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• In the event of an inconsistency, the limits under the legislation prevail over the digital data.

Provenance

Source

Geoscience Australia, Australian Ocean Data Network

Collection Method

Delineation of limits and boundaries under Australian legislation and treaties.

Time Range

Currency: December 2020

Freshness

Last updated 2026-06-27 17:27:51.243192; freshness should be verified.

Geography

Australia including all external territories, Australian marine jurisdiction.