Free compendium of airborne survey data

By on 12 August, 2014

Airborne Survey

The latest index of Australian airborne geophysical surveys has been released, and includes details of all available open-file surveys completed to date by the Australian, state, and territory governments as well as the private sector.

The geophysical data created by these surveys is used to generate 3D models of the sub-surface geology, which can then be used to support decision making related to the development of resources, management of the environment, and the well-being of communities in the survey areas.

The Index of Airborne Geophysical Surveys (14th Edition) now includes details on surveys that have acquired more than 34.9 million line kilometres of mainly magnetic intensity and gamma-ray spectrometric data. It also includes details on surveys where land elevation data are derived from GPS recordings made during airborne magnetic and gamma-ray spectrometric surveys, with electromagnetic data also available for some areas.

Geophysical survey data measures variations in the Earth’s physical properties caused by changes in the physical properties of rocks in the sub-surface, such as magnetisation, natural radioactivity and electrical conductivity.

Since 1999, Geoscience Australia and State and Territory Geological Surveys have contracted airborne geophysical companies to undertake surveys, either separately or as part of joint projects. Geoscience Australia’s predecessors the Australian Geological Survey Organisation (AGSO) and the Bureau of Mineral Resources (BMR) used their own aircraft between 1951 and 1999. Airborne survey index information was first published in 1977 by the BMR.

The open-file airborne geophysical data included in the National Airborne Geophysical Database are available free via the Geophysical Archive Data Delivery System on the Australian Government Geoscience Portal. This includes all open-file geophysical surveys completed prior to this latest edition.

The Index of Airborne Geophysical Surveys (14th Edition) is available, for free, online now.

You may also like to read:


, , , , ,


Newsletter

Sign up now to stay up to date about all the news from Spatial Source. You will get a newsletter every week with the latest news.

WWII-era freighter found after 77 years
The final resting place of the SS Iron Crown and 38 of her c...
Trimble releases next-gen smartphone GIS data collector
Trimble's new TDC600 handheld is an all-in-one smartphone an...
New drones, sensors dazzle at AUVSI Xponential 2019
A range of new sensors and tailored RPA solutions launched a...
Building regional pathways: South East Asia Survey Congress 2019
SEASC 2019 organisers release program, announce discounted e...
Campaign puts geospatial science on the map
The Geospatial Science campaign aims to drive uptake of educ...