Data

GSQ Walsh Red River total count grid geodetic

Name: GSQ Walsh Red River total count grid geodetic
Published: 2020

Geoscience Australia

Geophysical Acquisition & Processing Section

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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=aa73e3f7-948a-4f1b-b8d7-64b7a9712793&rft.title=GSQ Walsh Red River total count grid geodetic&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/140852&rft.description=This GSQ Walsh Red River total count grid geodetic is an airborne-derived radiometric total count window countrate grid for the Walsh, Red River, Qld, 1992/93 survey. 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 total count (K), total count (U) and total count (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 GSQ Walsh Red River total count grid geodetic has a cell size of 0.00083 degrees (approximately 90m). The data are in units of counts per second (cps). The data used to produce this grid was acquired in 1992 by the QLD Government, and consisted of 54145 line-kilometres of data at 400m line spacing and 100m terrain clearance.Maintenance and Update Frequency: notPlannedStatement: This GSQ Walsh Red River total count grid geodetic is an airborne-derived radiometric total count window countrate grid for the Walsh, Red River, Qld, 1992/93 survey. The survey was acquired in 1992 under the project No. 600 for the geological survey of QLD. The data consisted of 54145 line-kilometres of data at 400m line spacing and 100m terrain clearance. The radiometric count rate is contaminated by background radiation contributions from the aircraft, cosmic rays, and the presence of Radon gas escaping from the ground. It is also affected by the ground clearance of the detector, as well as the volume of the detector. This grid was produced after applying radiometric corrections to the total count window data from the survey. 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. The final grid is checked for quality by GA geophysicists to ensure that the final data released are fit-for-purpose. This GSQ Walsh Red River total count grid geodetic has a cell size of 0.00083 degrees (approximately 90m) and shows the total count window countrate of the Walsh, Red River, Qld, 1992/93 survey in units of counts per second (or cps). 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 Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2020&rft.coverage=westlimit=142.9914; southlimit=-18.0097; eastlimit=144.2588; northlimit=-15.9906; projection=AGD66 (EPSG:4202)&rft.coverage=westlimit=142.9914; southlimit=-18.0097; eastlimit=144.2588; northlimit=-15.9906; projection=AGD66 (EPSG:4202)&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/&rft_rights=(c) Geological Survey of Queensland 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=QLD&rft_subject=survey 600&rft_subject=GADDS2.0&rft_subject=radiometrics&rft_subject=NASVD&rft_subject=total count&rft_subject=window countrate&rft_subject=airborne digital data&rft_subject=geophysical survey&rft_subject=rad&rft_subject=TC&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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This GSQ Walsh Red River total count grid geodetic is an airborne-derived radiometric total count window countrate grid for the Walsh, Red River, Qld, 1992/93 survey. 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 total count (K), total count (U) and total count (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 GSQ Walsh Red River total count grid geodetic has a cell size of 0.00083 degrees (approximately 90m). The data are in units of counts per second (cps). The data used to produce this grid was acquired in 1992 by the QLD Government, and consisted of 54145 line-kilometres of data at 400m line spacing and 100m terrain clearance.

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Maintenance and Update Frequency: notPlanned

Statement: This GSQ Walsh Red River total count grid geodetic is an airborne-derived radiometric total count window countrate grid for the Walsh, Red River, Qld, 1992/93 survey. The survey was acquired in 1992 under the project No. 600 for the geological survey of QLD. The data consisted of 54145 line-kilometres of data at 400m line spacing and 100m terrain clearance. The radiometric count rate is contaminated by background radiation contributions from the aircraft, cosmic rays, and the presence of Radon gas escaping from the ground. It is also affected by the ground clearance of the detector, as well as the volume of the detector. This grid was produced after applying radiometric corrections to the total count window data from the survey. 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. The final grid is checked for quality by GA geophysicists to ensure that the final data released are fit-for-purpose. This GSQ Walsh Red River total count grid geodetic has a cell size of 0.00083 degrees (approximately 90m) and shows the total count window countrate of the Walsh, Red River, Qld, 1992/93 survey in units of counts per second (or cps). 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 Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).

Created: 07 03 2020

Issued: 07 03 2020

Modified: 06 07 2021

Data time period: 11 1992 to 02 1993

This dataset is part of a larger collection

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text: westlimit=142.9914; southlimit=-18.0097; eastlimit=144.2588; northlimit=-15.9906; projection=AGD66 (EPSG:4202)

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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 GSQ Walsh Red River total count grid geodetic (GSQ Walsh Red River total count grid geodetic file download)

url : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/QLD/grid/P600/P600-grid-tc_wind.nc External Link

NetCDF Subsetting Service (NCSS) for GSQ Walsh Red River total count grid geodetic (GSQ Walsh Red River total count grid geodetic NCSS)

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/QLD/grid/P600/P600-grid-tc_wind.nc/dataset.html External Link

OPeNDAP web service for GSQ Walsh Red River total count grid geodetic (GSQ Walsh Red River total count grid geodetic OPeNDAP)

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/QLD/grid/P600/P600-grid-tc_wind.nc.html External Link

OGC Web Mapping Service (WMS) for GSQ Walsh Red River total count grid geodetic (GSQ Walsh Red River total count grid geodetic WMS)

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/QLD/grid/P600/P600-grid-tc_wind.nc?service=WMS&version=1.3.0&request=GetCapabilities External Link

OGC Web Coverage Service (WCS) for GSQ Walsh Red River total count grid geodetic (GSQ Walsh Red River total count grid geodetic WCS)

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/QLD/grid/P600/P600-grid-tc_wind.nc?service=WCS&version=1.0.0&request=GetCapabilities External Link

GSQ Walsh Red River total count grid geodetic NCSS