Authors / CoAuthors
Geophysical Acquisition & Processing Section
Abstract
Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. These line dataset from the Australia-Wide Airborne Geophysical Survey 2 (AWAGS2), 2007 survey were acquired in 2007 by Geoscience Australia at 75000m line spacing and 80m terrain clearance.
Product Type
dataset
eCat Id
144712
Contact for the resource
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
- theme.ANZRC Fields of Research.rdf
-
- EARTH SCIENCES
- ( Discipline )
-
- Earth sciences
- ( Discipline )
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- geophysics
- ( Feature type )
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- line
- ( Place )
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- Australia
- ( Place )
-
- None
- ( Project )
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- survey 1152
- ( Theme )
-
- GADDS2.0
- ( Theme )
-
- magnetics
- ( Theme )
-
- magnetism and palaeomagnetism
- ( Theme )
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- magnetic
- ( Theme )
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- airborne digital data
- ( Theme )
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- line
- ( Theme )
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- vector
- ( Theme )
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- geophysical survey
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- Published_External
Publication Date
2019-11-25T00:00:00
Creation Date
2019-11-25T00:00:00
Security Constraints
Legal Constraints
Status
completed
Purpose
Maintenance Information
notPlanned
Topic Category
geoscientificInformation
Series Information
Lineage
This Australia-Wide Airborne Geophysical Survey 2 (AWAGS2), 2007 (P1152), magnetic line data is an airborne-derived magnetic line dataset for the Australia-Wide Airborne Geophysical Survey 2 (AWAGS2), 2007 survey. The data were acquired under the project No. 1152 by Geoscience Australia at a line spacing of 75000m and 80m terrain clearance (Milligan et al., 2009). These AWAGS data have been used to level and merge all public-domain gamma-ray spectrometric and magnetic data in Australia to common datums. Details of the specifications of individual airborne surveys can be found in the Fourteenth Edition of the Index of Airborne Geophysical Surveys (Percival, 2014). This Index is also available online at http://pid.geoscience.gov.au/dataset/79134. References: Milligan, P.R., Minty, B.R.S., Richardson, M. and Franklin, R., 2009. The Australia-wide Airborne Geophysical Survey accurate continental magnetic coverage. Preview, No. 138, p. 1-128. Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).
Parent Information
Geophysical Data Collection - Airborne Geophysics
UUID - ddeb0fc4-32e3-4913-80f2-f4249b17a925,
eCat ID - 111301
Extents
[-43.9167, -10.7129, 113.2979, 153.597]
Reference System
GDA94 (EPSG:4283)
Spatial Resolution
Service Information
Associations
Downloads and Links
File available for download in various formats from the GADDS2 portal
/g/data/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/line/P1152/P1152-line-magnetic.nc file at NCI
/g/data/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/line/P1152/P1152-line-magnetic.nc file download
Source Information
This Australia-Wide Airborne Geophysical Survey 2 (AWAGS2), 2007 (P1152), magnetic line data includes airborne-derived magnetic data for the Australia-Wide Airborne Geophysical Survey 2 (AWAGS2), 2007 survey acquired by Geoscience Australia.