Data

West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled

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=d8113e0b-7b4f-4d8d-b4b2-67780a5d9d74&rft.title=West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/141612&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 West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled were acquired in 1995 by the WA Government, and consisted of 75096 line-kilometres of data at 400m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.Maintenance and Update Frequency: notPlannedStatement: This West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled is an airborne-derived radiometric data for the West Pilbara, WA, 1995. The data was acquired under the project No. 636 for the geological survey of WA. A total of 75096 line-kilometres of data at a line spacing of 400m were acquired during this survey. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data (Milligan et al., 2009). This survey data is essentially levelled to AWAGS. 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. 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=2019&rft.coverage=westlimit=115.9304; southlimit=-21.5245; eastlimit=118.0504; northlimit=-19.7946; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=115.9304; southlimit=-21.5245; eastlimit=118.0504; northlimit=-19.7946; 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 State of Western Australia (Department of Mines, Industry Regulation and Safety) 2019&rft_rights=Australian Government Security ClassificationSystem https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_subject=geoscientificInformation&rft_subject=EARTH SCIENCES&rft_subject=Earth sciences&rft_subject=geophysics&rft_subject=line&rft_subject=Australia&rft_subject=WA&rft_subject=survey 636&rft_subject=AWAGS&rft_subject=GADDS2.0&rft_subject=radiometrics&rft_subject=gamma-ray&rft_subject=spectrometry&rft_subject=NASVD&rft_subject=potassium&rft_subject=thorium&rft_subject=uranium&rft_subject=airborne digital data&rft_subject=geophysical survey&rft_subject=vector&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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(c) Commonwealth of Australia (Geoscience Australia) and State of Western Australia (Department of Mines, Industry Regulation and Safety) 2019

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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 West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled were acquired in 1995 by the WA Government, and consisted of 75096 line-kilometres of data at 400m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: This West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled is an airborne-derived radiometric data for the West Pilbara, WA, 1995. The data was acquired under the project No. 636 for the geological survey of WA. A total of 75096 line-kilometres of data at a line spacing of 400m were acquired during this survey. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data (Milligan et al., 2009). This survey data is essentially levelled to AWAGS. 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. 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: 15 12 2019

Issued: 15 12 2019

Modified: 06 07 2021

Data time period: 23 05 1995 to 20 07 1995

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118.0504,-19.7946 118.0504,-21.5245 115.9304,-21.5245 115.9304,-19.7946 118.0504,-19.7946

116.9904,-20.65955

text: westlimit=115.9304; southlimit=-21.5245; eastlimit=118.0504; northlimit=-19.7946; projection=GDA94 (EPSG:4283)

Subjects
AWAGS | Australia | EARTH SCIENCES | Earth sciences | GADDS2.0 | NASVD | Published_External | WA | airborne digital data | gamma-ray | geophysical survey | geophysics | geoscientificInformation | line | potassium | radiometrics | spectrometry | survey 636 | thorium | uranium | vector |

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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

File download for West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled (West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled file download)

url : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/line/P636/P636-line-radiometric-AWAGS_RAD_2015.nc

OPeNDAP web service for West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled (West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled OPeNDAP)

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/line/P636/P636-line-radiometric-AWAGS_RAD_2015.nc.html

West Pilbara, WA, 1995 (P636), radiometric line data, AWAGS levelled OPeNDAP

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/line/P636/P636-line-radiometric-AWAGS_RAD_2015.nc.html

Identifiers
ACN 633 798 857