Best Available

National Digital Elevation Data

Australia's future safety, prosperity and sustainability depends on making informed policy and investment decisions that meet the needs of today, and the decades ahead. Digital elevation data which describes Australia's landforms and seabed is crucial for addressing issues relating to the impacts of climate change, disaster management, water security, environmental management, urban planning and infrastructure design.

National Groundwater

The National groundwater dataset is derived from multiple inputs aggregated together to provide a national coverage for all of Australia.

The dataset provides a nationally consistent set of groundwater boundaries and properties including aquifer boundaries, geometry, salinity, yield and hydraulic conductivity. 

National Groundwater Bores

The National groundwater bores is a national dataset aggregated from numerous inputs to produce a consistent coverage over Australia for groundwater bores.

The groundwater bores (including monitoring, irrigation and commercial bores) and associated lithology, construction and hydrostratigraphy logs. The National Aquifer Framework has been used to standardise the hydrogeological unit terminology for this dataset.

National Baseline

The term Territorial Sea Baseline (TSB) refers to the line from which the seaward limits of Australia's Maritime Zones are measured. These include the breadth of the territorial sea; the seaward limits of the contiguous zone, the exclusive economic zone and, in some cases, the continental shelf.
The territorial sea baseline may be of various types depending upon the shape of the coastline in any given locality:

National Continental Shelf

The Continental Shelf is the area of the seabed and subsoil which extends beyond the territorial sea to a distance of 200M from the territorial sea baseline and beyond that distance to the outer edge of the continental margin as defined in Article 76 of the Convention. The continental shelf is largely coextensive with the exclusive economic zone within 200M from the territorial sea baselines (there are certain areas between Australia and Indonesia and Australia and Papua New Guinea where they are not coextensive).

National Coastline

Coastal Waters is a belt of water between the limits of the Australian States and the Northern Territory and a line 3M seaward of the territorial sea baseline*. Jurisdiction over the water column and the subjacent seabed is vested in the adjacent State or Territory as if the area formed part of that State or Territory. This, and other arrangements for the management of offshore resources such as fisheries and petroleum, are defined by the Offshore Constitutional Settlement (OCS).


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