Data

Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd)

Name: Tanami MainEW - U 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=bf7c0cd1-6a95-4ccc-a15b-fbc02d022d93&rft.title=Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/144839&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 uranium grid has a cell size of 0.00036 degrees (approximately 40m) and shows uranium element concentration of the NTGS Tanami EW Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2018 by the NT Government, and consisted of 97969 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 Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) is an airborne-derived radiometric uranium grid for the NTGS Tanami EW Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018. The survey was acquired under the project No. 1312 for the geological survey of NT. The grid has a cell size of 0.00036 degrees (approximately 40m). A total of 97969 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. This radiometric uranium grid shows uranium element concentration of the NTGS Tanami EW Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018 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=128.9868; southlimit=-20.2353; eastlimit=131.1756; northlimit=-18.9669; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=128.9868; southlimit=-20.2353; eastlimit=131.1756; northlimit=-18.9669; 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 Northern Territory of Australia (Northern Territory Geological Survey) 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=NT&rft_subject=survey 1312&rft_subject=AWAGS&rft_subject=GADDS2.0&rft_subject=radiometrics&rft_subject=uranium&rft_subject=airborne digital data&rft_subject=geophysical survey&rft_subject=rad&rft_subject=U&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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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 uranium grid has a cell size of 0.00036 degrees (approximately 40m) and shows uranium element concentration of the NTGS Tanami EW Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2018 by the NT Government, and consisted of 97969 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 Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) is an airborne-derived radiometric uranium grid for the NTGS Tanami EW Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018. The survey was acquired under the project No. 1312 for the geological survey of NT. The grid has a cell size of 0.00036 degrees (approximately 40m). A total of 97969 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. This radiometric uranium grid shows uranium element concentration of the NTGS Tanami EW Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018 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: 13 07 2018 to 23 10 2018

This dataset is part of a larger collection

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text: westlimit=128.9868; southlimit=-20.2353; eastlimit=131.1756; northlimit=-18.9669; 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 Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) (Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) file download)

url : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-MainEW-AWAGS_RAD_2019.nc External Link

NetCDF Subsetting Service (NCSS) for Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) (Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) NCSS)

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-MainEW-AWAGS_RAD_2019.nc/dataset.html External Link

OPeNDAP web service for Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) (Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) OPeNDAP)

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-MainEW-AWAGS_RAD_2019.nc.html External Link

OGC Web Mapping Service (WMS) for Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) (Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) WMS)

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-MainEW-AWAGS_RAD_2019.nc?service=WMS&version=1.3.0&request=GetCapabilities External Link

OGC Web Coverage Service (WCS) for Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) (Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) WCS)

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-MainEW-AWAGS_RAD_2019.nc?service=WCS&version=1.0.0&request=GetCapabilities External Link

Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) NCSS

Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) OPeNDAP

Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) WMS

Tanami MainEW - U equivalent concentration grid (AWAGS, nasvd) WCS

Identifiers

URL : pid.geoscience.gov.au/dataset/ga/144839
global : bf7c0cd1-6a95-4ccc-a15b-fbc02d022d93