Data

GSSA Fowler percent Potassium grid geodetic

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/140300&rft.title=GSSA Fowler percent Potassium grid geodetic&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/140300&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 potassium grid has a cell size of 0.00042 degrees (approximately 43m) and shows potassium element concentration of the Fowler Airborne Magnetic Radiometric and DEM Survey, SA, 2017 in units of percent (or %). The data used to produce this grid was acquired in 2017 by the SA Government, and consisted of 94903 line-kilometres of data at 200m line spacing and 60m terrain clearance.Maintenance and Update Frequency: notPlannedStatement: This GSSA Fowler percent Potassium grid geodetic is an airborne-derived radiometric potassium grid for the Fowler Airborne Magnetic Radiometric and DEM Survey, SA, 2017. The survey was acquired under the project No. 1285 for the geological survey of SA. The grid has a cell size of 0.00042 degrees (approximately 43m). A total of 94903 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. This radiometric potassium grid shows potassium element concentration of the Fowler Airborne Magnetic Radiometric and DEM Survey, SA, 2017 in units of percent (or %). 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. Reference: Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2020&rft.coverage=westlimit=130.9895; southlimit=-32.2135; eastlimit=133.5103; northlimit=-31.2477; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=130.9895; southlimit=-32.2135; eastlimit=133.5103; northlimit=-31.2477; projection=GDA94 (EPSG:4283)&rft_rights=&rft_rights=Creative Commons Attribution 3.0 International Licence&rft_rights=CC-BY&rft_rights=3.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=(c) Department for Energy and Mining, Government of South 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 3.0 International Licence http://creativecommons.org/licenses/by/3.0&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=SA&rft_subject=survey 1285&rft_subject=GADDS2.0&rft_subject=radiometrics&rft_subject=potassium&rft_subject=airborne digital data&rft_subject=geophysical survey&rft_subject=rad&rft_subject=K&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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Creative Commons Attribution 3.0 International Licence
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Creative Commons Attribution 3.0 International Licence

CC-BY

3.0

http://creativecommons.org/licenses/

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

Australian Government Security ClassificationSystem

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Contact Information

clientservices@ga.gov.au

Brief 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 potassium grid has a cell size of 0.00042 degrees (approximately 43m) and shows potassium element concentration of the Fowler Airborne Magnetic Radiometric and DEM Survey, SA, 2017 in units of percent (or %). The data used to produce this grid was acquired in 2017 by the SA Government, and consisted of 94903 line-kilometres of data at 200m line spacing and 60m terrain clearance.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: This GSSA Fowler percent Potassium grid geodetic is an airborne-derived radiometric potassium grid for the Fowler Airborne Magnetic Radiometric and DEM Survey, SA, 2017. The survey was acquired under the project No. 1285 for the geological survey of SA. The grid has a cell size of 0.00042 degrees (approximately 43m). A total of 94903 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. This radiometric potassium grid shows potassium element concentration of the Fowler Airborne Magnetic Radiometric and DEM Survey, SA, 2017 in units of percent (or %). 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.

Reference:
Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).

Created: 07 03 2020

Issued: 07 03 2020

Modified: 05 07 2021

Data time period: 20 02 2017 to 13 10 2017

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133.5103,-31.2477 133.5103,-32.2135 130.9895,-32.2135 130.9895,-31.2477 133.5103,-31.2477

132.2499,-31.7306

text: westlimit=130.9895; southlimit=-32.2135; eastlimit=133.5103; northlimit=-31.2477; projection=GDA94 (EPSG:4283)

Subjects
Australia | EARTH SCIENCES | Earth sciences | GADDS2.0 | K | NCI | Published_External | SA | airborne digital data | gamma-ray | geophysical survey | geophysics | geoscientificInformation | grid | potassium | rad | radiometrics | raster | spectrometry | survey 1285 |

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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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