Data

Radiometric Grid of Australia (Radmap) v4 2019 filtered ppm uranium

Name: Radiometric Grid of Australia (Radmap) v4 2019 filtered ppm uranium
Published: 2019

Geoscience Australia

Poudjom Djomani, Y. ; Minty, B.R.S.

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/131974&rft.title=Radiometric Grid of Australia (Radmap) v4 2019 filtered ppm uranium&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/131974&rft.publisher=Geoscience Australia&rft.description=The filtered uranium grid is a derivative of the 2019 radiometric or gamma-ray grid of Australia. The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). The data are collected on airborne geophysical surveys conducted by Commonwealth, State and Northern Territory Governments and the private sector. The 2019 filtered uranium grid was derived by seamlessly merging over 600 airborne gamma-ray spectrometric surveys. The final grid has a cell size of about 100m (0.001 degrees) and shows uranium element concentrations of the Australia region.Maintenance and Update Frequency: notPlannedStatement: The filtered uranium grid is a derivative of the 2019 radiometric or gamma-ray grid of Australia. The radiometric grid of Australia is derived by merging over 600 airborne gamma-ray spectrometric surveys by the Commonwealth, State and Territory Governments and held in the national radioelement database of Australia. The cell sizes of the original survey grids range from 50 m through 800 m, but most have a cell size of about 100 m. The original survey grids were re-levelled and then re-sampled to generate the Radiometric Map of Australia grids with a cell size of about 100m (0.001 degrees). The data quality varies depending on the survey. The data were 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 final grid is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This filtered uranium grid was calculated by applying a 7-point, degree-3 Savitzky-Golay low pass filter (Savitzky & Golay, 1964) to each of the original survey grids prior to grid merging. Reference: Savitzky, A. and Golay, M.J.E., 1964. Smoothing and differentiation of data by simplified least squares procedures. Analytical Chemistry, 36: 1627–1639.&rft.creator=Poudjom Djomani, Y. &rft.creator=Minty, B.R.S. &rft.date=2019&rft.coverage=westlimit=112.7175; southlimit=-43.7615; eastlimit=153.6715; northlimit=-9.0005; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=112.7175; southlimit=-43.7615; eastlimit=153.6715; northlimit=-9.0005; 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=WWW:LINK-1.0-http--link&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=HVC_144636&rft_subject=airborne digital data&rft_subject=radiometrics&rft_subject=uranium&rft_subject=national geophysical compilation&rft_subject=Earth sciences&rft_subject=geophysics&rft_subject=NCI&rft_subject=Australia&rft_subject=grid&rft_subject=Published_External&rft_subject=raster&rft_subject=GADDS2.0&rft_subject=2019&rft_subject=radmap&rft.type=dataset&rft.language=English Access the data

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Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

Creative Commons Attribution 4.0 International Licence

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4.0

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Australian Government Security ClassificationSystem

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Brief description

The filtered uranium grid is a derivative of the 2019 radiometric or gamma-ray grid of Australia. The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). The data are collected on airborne geophysical surveys conducted by Commonwealth, State and Northern Territory Governments and the private sector. The 2019 filtered uranium grid was derived by seamlessly merging over 600 airborne gamma-ray spectrometric surveys. The final grid has a cell size of about 100m (0.001 degrees) and shows uranium element concentrations of the Australia region.

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Maintenance and Update Frequency: notPlanned

Statement: The filtered uranium grid is a derivative of the 2019 radiometric or gamma-ray grid of Australia. The radiometric grid of Australia is derived by merging over 600 airborne gamma-ray spectrometric surveys by the Commonwealth, State and Territory Governments and held in the national radioelement database of Australia. The cell sizes of the original survey grids range from 50 m through 800 m, but most have a cell size of about 100 m. The original survey grids were re-levelled and then re-sampled to generate the Radiometric Map of Australia grids with a cell size of about 100m (0.001 degrees). The data quality varies depending on the survey. The data were 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 final grid is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This filtered uranium grid was calculated by applying a 7-point, degree-3 Savitzky-Golay low pass filter (Savitzky & Golay, 1964) to each of the original survey grids prior to grid merging. Reference: Savitzky, A. and Golay, M.J.E., 1964. Smoothing and differentiation of data by simplified least squares procedures. Analytical Chemistry, 36: 1627–1639.

Issued: 04 11 2019

Modified: 20 11 2019

This dataset is part of a larger collection

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text: westlimit=112.7175; southlimit=-43.7615; eastlimit=153.6715; northlimit=-9.0005; projection=GDA94 (EPSG:4283)

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Download the data (ers) [2.2 GB]

uri : https://d28rz98at9flks.cloudfront.net/131974/131974.zip External Link

Identifiers

DOI : 10.26186/5DD48EE78C980
URI : pid.geoscience.gov.au/dataset/ga/131974
global : 3b0a579b-0254-47e8-917e-cde5e57c537f

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