Data

NT Tiwi Islands 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=http://rhe-ecat-prod01.prod.lan:8080/geonetwork/srv/eng/search?uuid=d4e8aff6-1be0-4299-8c4e-8064f606c036&rft.title=NT Tiwi Islands Percent Potassium Grid Geodetic&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/140473&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 0.00083 degrees (approximately 92m) and shows potassium element concentration of the Tiwi Islands, NT, 2006 in units of percent (or %). The data used to produce this grid was acquired in 2006 by the NT Government, and consisted of 30001 line-kilometres of data at 400m line spacing and 80m terrain clearance.Maintenance and Update Frequency: notPlannedStatement: This NT Tiwi Islands Percent Potassium Grid Geodetic is an airborne-derived radiometric potassium grid for the Tiwi Islands, NT, 2006. The survey was acquired under the project No. 1137 for the geological survey of NT. The grid has a cell size of 0.00083 degrees (approximately 92m). A total of 30001 line-kilometres of data at a line spacing of 400m and 80m terrain clearance were acquired to produce this grid. This radiometric potassium grid shows potassium element concentration of the Tiwi Islands, NT, 2006 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=129.9953; southlimit=-12.1957; eastlimit=131.5619; northlimit=-11.1358; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=129.9953; southlimit=-12.1957; eastlimit=131.5619; northlimit=-11.1358; projection=GDA94 (EPSG:4283)&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/&rft_rights=(c) 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 1137&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 4.0 International Licence
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(c) Northern Territory of Australia (Northern Territory Geological Survey) 2020

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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 radiometric potassium grid has a cell size of 0.00083 degrees (approximately 92m) and shows potassium element concentration of the Tiwi Islands, NT, 2006 in units of percent (or %). The data used to produce this grid was acquired in 2006 by the NT Government, and consisted of 30001 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: This NT Tiwi Islands Percent Potassium Grid Geodetic is an airborne-derived radiometric potassium grid for the Tiwi Islands, NT, 2006. The survey was acquired under the project No. 1137 for the geological survey of NT. The grid has a cell size of 0.00083 degrees (approximately 92m). A total of 30001 line-kilometres of data at a line spacing of 400m and 80m terrain clearance were acquired to produce this grid. This radiometric potassium grid shows potassium element concentration of the Tiwi Islands, NT, 2006 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: 06 07 2021

Data time period: 09 10 2006 to 18 11 2006

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131.5619,-11.1358 131.5619,-12.1957 129.9953,-12.1957 129.9953,-11.1358 131.5619,-11.1358

130.7786,-11.66575

text: westlimit=129.9953; southlimit=-12.1957; eastlimit=131.5619; northlimit=-11.1358; projection=GDA94 (EPSG:4283)

Subjects
Australia | EARTH SCIENCES | Earth sciences | GADDS2.0 | K | NCI | NT | Published_External | airborne digital data | gamma-ray | geophysical survey | geophysics | geoscientificInformation | grid | potassium | rad | radiometrics | raster | spectrometry | survey 1137 |

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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 NT Tiwi Islands Percent Potassium Grid Geodetic (NT Tiwi Islands Percent Potassium Grid Geodetic file download)

url : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc

NetCDF Subsetting Service (NCSS) for NT Tiwi Islands Percent Potassium Grid Geodetic (NT Tiwi Islands Percent Potassium Grid Geodetic NCSS)

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc/dataset.html

OPeNDAP web service for NT Tiwi Islands Percent Potassium Grid Geodetic (NT Tiwi Islands Percent Potassium Grid Geodetic OPeNDAP)

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc.html

OGC Web Mapping Service (WMS) for NT Tiwi Islands Percent Potassium Grid Geodetic (NT Tiwi Islands Percent Potassium Grid Geodetic WMS)

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for NT Tiwi Islands Percent Potassium Grid Geodetic (NT Tiwi Islands Percent Potassium Grid Geodetic WCS)

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc?service=WCS&version=1.0.0&request=GetCapabilities

NT Tiwi Islands Percent Potassium Grid Geodetic NCSS

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc/dataset.html

NT Tiwi Islands Percent Potassium Grid Geodetic OPeNDAP

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc.html

NT Tiwi Islands Percent Potassium Grid Geodetic WMS

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc?service=WMS&version=1.3.0&request=GetCapabilities

NT Tiwi Islands Percent Potassium Grid Geodetic WCS

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1137/P1137-grid-k_conc.nc?service=WCS&version=1.0.0&request=GetCapabilities

Identifiers
ACN 633 798 857