Data

Magnetic Map of Qld grid first edition

Geoscience Australia
Geophysical Acquisition & Processing Section
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/142642&rft.title=Magnetic Map of Qld grid first edition&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/142642&rft.description=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. This Magnetic Map of Qld grid first edition has a cell size of 0.0025 degrees (approximately 270m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 2003 by the None Government, and consisted of None line-kilometres of data at a line spacing between 200m and 10000m, and Nonem terrain clearance.Maintenance and Update Frequency: notPlannedStatement: This Magnetic Map of Qld grid first edition is an airborne-derived Total Magnetic Intensity (TMI) grid for the Magnetic Map of Queensland, First Edition, 2003 survey. The survey was acquired under the project No. 915 for the geological survey of None. The grid has a cell size of 0.0025 degrees (approximately 270m). The units are in nanoTesla (or nT). A total of None line-kilometres of data at a line spacing between 200m and 10000m, and Nonem terrain clearance were acquired to produce this grid. 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. Reference: Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2020&rft.coverage=westlimit=134.8888; southlimit=-30.0163; eastlimit=155.0088; northlimit=-8.1063; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=134.8888; southlimit=-30.0163; eastlimit=155.0088; northlimit=-8.1063; projection=GDA94 (EPSG:4283)&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=(c) Commonwealth of Australia (Geoscience Australia) 2020&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=EARTH SCIENCES&rft_subject=NCI&rft_subject=Earth sciences&rft_subject=geophysics&rft_subject=grid&rft_subject=Australia&rft_subject=None&rft_subject=survey 915&rft_subject=GADDS2.0&rft_subject=TMI&rft_subject=magnetics&rft_subject=magnetism&rft_subject=palaeomagnetism&rft_subject=airborne digital data&rft_subject=geophysical survey&rft_subject=mag&rft_subject=total magnetic intensity&rft_subject=raster&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
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Creative Commons Attribution 4.0 International Licence

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(c) Commonwealth of Australia (Geoscience Australia) 2020

Australian Government Security ClassificationSystem

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Brief description

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. This Magnetic Map of Qld grid first edition has a cell size of 0.0025 degrees (approximately 270m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 2003 by the None Government, and consisted of None line-kilometres of data at a line spacing between 200m and 10000m, and Nonem terrain clearance.

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Maintenance and Update Frequency: notPlanned
Statement: This Magnetic Map of Qld grid first edition is an airborne-derived Total Magnetic Intensity (TMI) grid for the Magnetic Map of Queensland, First Edition, 2003 survey. The survey was acquired under the project No. 915 for the geological survey of None. The grid has a cell size of 0.0025 degrees (approximately 270m). The units are in nanoTesla (or nT). A total of None line-kilometres of data at a line spacing between 200m and 10000m, and Nonem terrain clearance were acquired to produce this grid. 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. Reference: Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).

Created: 07 03 2020

Issued: 07 03 2020

Modified: 06 07 2021

Data time period: 2003 to 31 12 2003

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155.0088,-8.1063 155.0088,-30.0163 134.8888,-30.0163 134.8888,-8.1063 155.0088,-8.1063

144.9488,-19.0613

text: westlimit=134.8888; southlimit=-30.0163; eastlimit=155.0088; northlimit=-8.1063; projection=GDA94 (EPSG:4283)

Subjects
Australia | EARTH SCIENCES | Earth sciences | GADDS2.0 | NCI | None | Published_External | TMI | airborne digital data | geophysical survey | geophysics | geoscientificInformation | grid | mag | magnetics | magnetism | palaeomagnetism | raster | survey 915 | total magnetic intensity |

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Other Information
The Geophysical Archive Data Delivery System (GADDS2) portal provides HTTP download of geophysics datasets in a number of formats. Point and line datasets are available in NetCDF and ASEG-GDF2. Grid datasets are available in NetCDF, GeoTIFF and ERS. (File available for download in various formats from the GADDS2 portal)

uri : https://portal.ga.gov.au/persona/gadds

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