Australian Maritime Boundaries GIS Data 2014

May 2014 digital GIS representation of Australia's territorial sea baselines, maritime zone outer limits, and international treaty boundaries. The data covers the full Australian marine jurisdiction from 7°S to 70°S latitude and 40°E to 175°E longitude, developed by Geoscience Australia.

Use Cases

• Analyze territorial sea baselines and maritime zone outer limits for legal and jurisdictional mapping.
• Integrate scheduled area and graticular block datasets, such as block SC51, for offshore resource management under the OPGGSA.
• Use the GDA94 coordinate data for spatial analysis of Australia's maritime boundaries established under the Seas and Submerged Lands Act 1973.
• Map the limits determining State and Northern Territory coastal waters under the Coastal Waters Acts.

Strengths

• Definitive spatial coverage of Australia's entire marine jurisdiction, including external territories.
• Coordinates provided in the standardized GDA94 datum, functionally equivalent to WGS84.
• Data incorporates technical amendments based on user feedback for harmonization.

Limitations

• Data currency is May 2014, representing a snapshot that may not reflect subsequent legal or geographical changes.
• Coastline representation is constrained by the source material available at the time of production in 2014.
• Legal disclaimer states that in case of inconsistency, the limits under legislation prevail over the digital data.

Provenance

Source

Geoscience Australia

Collection Method

Delineation and digital representation of limits and boundaries under Australian legislation, developed in consultation with Commonwealth agencies.

Time Range

Snapshot as of May 2014.

Freshness

null

Geography

Australian marine jurisdiction, including mainland, offshore islands, and External Territories (approx. 7°S to 70°S, 40°E to 175°E).