Data

Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd)

Name: Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd)
Published: 2020

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=http://rhe-ecat-prod01.prod.lan:8080/geonetwork/srv/eng/search?uuid=d1d82c6e-0992-43da-a53b-d51db06fdc06&rft.title=Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/145049&rft.description=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 collected 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 radiometric thorium grid has a cell size of 0.0004 degrees (approximately 42m) and shows thorium element concentration of the Tallaringa South Airborne Magnetic Radiometric and DEM Survey, SA, 2017 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2017 by the SA Government, and consisted of 146285 line-kilometres of data at 200m line spacing and 60m terrain clearance. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid.Maintenance and Update Frequency: notPlannedStatement: This Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) is an airborne-derived radiometric thorium grid for the Tallaringa South Airborne Magnetic Radiometric and DEM Survey, SA, 2017. The survey was acquired under the project No. 1298 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 42m). A total of 146285 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. This radiometric thorium grid shows thorium element concentration of the Tallaringa South Airborne Magnetic Radiometric and DEM Survey, SA, 2017 in units of parts per million (or ppm). Noise-adjusted singular value decomposition (NASVD) has been applied to the data. NASVD is a spectral component analysis procedure for the removal of noise from gamma-ray spectra. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid (Milligan et al., 2009). This survey grid is essentially levelled to AWAGS. 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. & 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).&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2020&rft.coverage=westlimit=130.99; southlimit=-30.5046; eastlimit=133.5104; northlimit=-29.4958; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=130.99; southlimit=-30.5046; eastlimit=133.5104; northlimit=-29.4958; projection=GDA94 (EPSG:4283)&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/&rft_rights=(c) Commonwealth of Australia (Geoscience Australia) and Department for Energy and Mining, Government of South Australia 2020&rft_rights=Australian Government Security ClassificationSystem https://www.protectivesecurity.gov.au/Pages/default.aspx&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=SA&rft_subject=survey 1298&rft_subject=AWAGS&rft_subject=GADDS2.0&rft_subject=radiometrics&rft_subject=thorium&rft_subject=airborne digital data&rft_subject=geophysical survey&rft_subject=rad&rft_subject=Th&rft_subject=gamma-ray&rft_subject=spectrometry&rft_subject=raster&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data

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(c) Commonwealth of Australia (Geoscience Australia) and Department for Energy and Mining, Government of South Australia 2020

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Full description

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 collected 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 radiometric thorium grid has a cell size of 0.0004 degrees (approximately 42m) and shows thorium element concentration of the Tallaringa South Airborne Magnetic Radiometric and DEM Survey, SA, 2017 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2017 by the SA Government, and consisted of 146285 line-kilometres of data at 200m line spacing and 60m terrain clearance. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid.

Lineage

Maintenance and Update Frequency: notPlanned

Statement: This Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) is an airborne-derived radiometric thorium grid for the Tallaringa South Airborne Magnetic Radiometric and DEM Survey, SA, 2017. The survey was acquired under the project No. 1298 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 42m). A total of 146285 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. This radiometric thorium grid shows thorium element concentration of the Tallaringa South Airborne Magnetic Radiometric and DEM Survey, SA, 2017 in units of parts per million (or ppm). Noise-adjusted singular value decomposition (NASVD) has been applied to the data. NASVD is a spectral component analysis procedure for the removal of noise from gamma-ray spectra. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid (Milligan et al., 2009). This survey grid is essentially levelled to AWAGS. 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. & 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).

Created: 31 10 2020

Issued: 31 10 2020

Modified: 05 07 2021

Data time period: 26 09 2017 to 12 05 2018

This dataset is part of a larger collection

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text: westlimit=130.99; southlimit=-30.5046; eastlimit=133.5104; northlimit=-29.4958; projection=GDA94 (EPSG:4283)

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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)

url : https://portal.ga.gov.au/persona/gadds External Link

File download for Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) (Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) file download)

url : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1298/P1298-grid-th_conc-AWAGS_RAD_2019.nc External Link

NetCDF Subsetting Service (NCSS) for Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) (Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) NCSS)

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1298/P1298-grid-th_conc-AWAGS_RAD_2019.nc/dataset.html External Link

OPeNDAP web service for Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) (Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) OPeNDAP)

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1298/P1298-grid-th_conc-AWAGS_RAD_2019.nc.html External Link

OGC Web Mapping Service (WMS) for Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) (Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) WMS)

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1298/P1298-grid-th_conc-AWAGS_RAD_2019.nc?service=WMS&version=1.3.0&request=GetCapabilities External Link

OGC Web Coverage Service (WCS) for Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) (Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) WCS)

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1298/P1298-grid-th_conc-AWAGS_RAD_2019.nc?service=WCS&version=1.0.0&request=GetCapabilities External Link

Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) NCSS

Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) OPeNDAP

Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) WMS

Tallaringa South - Th equivalent concentration grid (AWAGS, nasvd) WCS

Identifiers

URL : pid.geoscience.gov.au/dataset/ga/145049
global : d1d82c6e-0992-43da-a53b-d51db06fdc06