Data

Geophysical Data Collection - AEM

Geoscience Australia
Geoscience Australia
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://pid.geoscience.gov.au/dataset/ga/74511&rft.title=Geophysical Data Collection - AEM&rft.identifier=http://pid.geoscience.gov.au/dataset/ga/74511&rft.publisher=Geoscience Australia&rft.description=Airborne electromagnetic (AEM) data measure variations in the conductivity of the ground by transmitting an electromagnetic signal from a system attached to a plane or helicopter. Depending on the AEM system used and the sub-surface conditions, AEM techniques can detect variations in the conductivity of the ground to a depth of several hundred metres. The responses recorded are commonly caused by the presence of electrically conductive materials such as salt or saline water, graphite, clays and sulphide minerals. This AEM data collection contains onshore data recorded on geophysical surveys conducted since the 1980s by Commonwealth, State & NT Governments and the private sector.The AEM data collection contains approximately 300,000 line km of time and frequency domain airborne electromagnetic data collected on more than 50 surveys. The line spacing on 39 surveys is less than or equal to 400 metres. Five surveys have a line spacing of 1km or greater. The Onshore Energy Security Program (OESP) surveys (Paterson, Pine Creek-Kombolgie and Frome) that were flown from 2008 to 2011 have areas of interest infilled with line spacing between 200 & 1600 metres. The data quality varies depending on the age of the survey. The data collected since the late 1990s are of the highest quality and have been processed by standard methods appropriate to the time to ensure the processed data contain responses due to conductivity changes in the sub-surface that can reveal the geological structure of the sub-surface.&rft.creator=Geoscience Australia &rft.date=2016&rft.coverage=northlimit=-9; southlimit=-55; westlimit=90; eastLimit=175&rft.coverage=northlimit=-9; southlimit=-55; westlimit=90; eastLimit=175&rft_rights=Restrictive GA Licence (please provide TRIM link)&rft_subject=geoscientificInformation&rft_subject=geoscience&rft_subject=geophysics&rft_subject=Airborne Electromagnetics&rft_subject=GEOPHYSICS&rft_subject=EARTH SCIENCES&rft_subject=Geophysical Data Collection&rft_subject=Airborne Digital Data&rft_subject=NCI&rft_subject=DC2020&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Brief description

Airborne electromagnetic (AEM) data measure variations in the conductivity of the ground by transmitting an electromagnetic signal from a system attached to a plane or helicopter. Depending on the AEM system used and the sub-surface conditions, AEM techniques can detect variations in the conductivity of the ground to a depth of several hundred metres. The responses recorded are commonly caused by the presence of electrically conductive materials such as salt or saline water, graphite, clays and sulphide minerals. This AEM data collection contains onshore data recorded on geophysical surveys conducted since the 1980s by Commonwealth, State & NT Governments and the private sector.

Lineage

The AEM data collection contains approximately 300,000 line km of time and frequency domain airborne electromagnetic data collected on more than 50 surveys. The line spacing on 39 surveys is less than or equal to 400 metres. Five surveys have a line spacing of 1km or greater. The Onshore Energy Security Program (OESP) surveys (Paterson, Pine Creek-Kombolgie and Frome) that were flown from 2008 to 2011 have areas of interest infilled with line spacing between 200 & 1600 metres. The data quality varies depending on the age of the survey. The data collected since the late 1990s are of the highest quality and have been processed by standard methods appropriate to the time to ensure the processed data contain responses due to conductivity changes in the sub-surface that can reveal the geological structure of the sub-surface.

Issued: 10 06 2016

Modified: 28 04 2020

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175,-9 175,-55 90,-55 90,-9 175,-9

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text: northlimit=-9; southlimit=-55; westlimit=90; eastLimit=175

Subjects
Airborne Digital Data | Airborne Electromagnetics | DC2020 | Earth Sciences | Geophysics | Geophysical Data Collection | NCI | Published_External | geophysics | geoscience | geoscientificInformation |

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Other Information
Geophysical Archive Data Delivery System

uri : http://www.geoscience.gov.au/gadds

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