Airborne Geophysics and Gravity Data

Airborne geophysical survey data

Geoscience Australia's National Airborne Geophysical Database contains magnetic, gamma-ray, elevation and electromagnetic data from more than 900 airborne geophysical surveys conducted by or for the Australian Government. They comprise more than 19 million line kilometres of mainly total magnetic and gamma-ray spectrometric data. Line elevation data derived from GPS recordings made during airborne geophysical surveys and electromagnetic data also are available for some areas. This repository of geophysical information is a valuable national asset which is importance to government and industry in the assessment of resource potential, determining land use and environmental management policies and aiding in the planning of more detailed exploration activities. Data from the national airborne geophysical database can be obtained from various sources, including:

• A free download from the Geophysical Archive Data Delivery System (GADDS);
• from the Geoscience Australia Sales Centre (for a list please refer to the table of available airborne survey products); and
• The the Index of Airborne Geophysical Surveys (9th edition) which provides metadata for Australian airborne magnetic and radiometric surveys.

Gravity data

The Australian National Gravity Database contains information on gravity surveys conducted in Australia and its offshore Territories. The material originates from reports, data and maps obtained by Geoscience Australia, State and Territory governments, mineral and petroleum exploration companies, universities and overseas organisations. Consistency is controlled by accurate gravity observations made via a network of stations called the Fundamental Gravity Network. Gravity data is available from various sources, including:

• A free download from the Geophysical Archive Data Delivery System;
• on CD-ROM from the Geoscience Australia Sales Centre (for a list please refer to the table of gravity digital data products; and
• the Index of Gravity Surveys (1st edition) which provides metadata for Australian gravity surveys.

Related links

• Geophysics home page
• Continental Geophysics
• Australian Fundamental Gravity Network (AFGN)
• Seismic Acquisition and Processing
• AEM Acquisition and Interpretation
• Magnetic Anomaly Grid Database of Australia (MAGDA)
• Airborne Geophysics and Gravity Data
• Gravimetry
• A transect through central Australia