Australian Maritime Jurisdiction Map North of 25°S

One of 28 constituent maps in a national series, this geospatial dataset depicts Australia's maritime jurisdiction north of approximately 25°S. The map was updated in December 2019 to incorporate changes from the 2018 Australia/Timor-Leste Maritime Boundaries Treaty. It is produced by Geoscience Australia and includes areas around the Cocos (Keeling) Islands, Christmas Island, and the northern continental shelf.

Use Cases

• Analyze changes in maritime boundaries by comparing the 2019 treaty update to the previous 2014 baseline.
• Map the extent of Australia's proclaimed continental shelf as defined in the 2012 Proclamation.
• Visualize jurisdictional areas for specific regions like the Cocos (Keeling) Islands or Christmas Island.
• Integrate bathymetry from the 2009 9 arc-second grid with jurisdictional polygons for maritime planning.

Strengths

• Officially updated in December 2019 to reflect a major international treaty.
• Part of a standardized national map series comprising 28 constituent maps.
• Background bathymetry combines high-resolution (9 arc-second) data from 2009 with a 1997 global grid.

Limitations

• The core jurisdictional data is a static map (PDF) not provided as machine-readable vector features.
• Background land imagery (Blue Marble) and some bathymetry data sources are over a decade old.
• Specific row counts, column attributes, and data formats for the underlying geometries are unknown.

Provenance

Source

Geoscience Australia, via the Australian Ocean Data Network.

Collection Method

Derived from official proclamations and treaties; cartographic compilation.

Time Range

Snapshot reflecting legal boundaries as of December 2019.

Freshness

Last platform update was 2026-04-04, but the dataset content reflects a December 2019 treaty.

Geography

Australia's maritime zones north of 25°S, including offshore territories.