Data

Tasmanian Tiers Airborne Magnetic, Radiometric and Digital Elevation Survey, TAS, 2021, (P5003), Block 2, radiometric line data

Geoscience Australia
Geophysical Acquisition & Processing Section
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Licence & Rights:

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CC-BY

Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/

Commonwealth of Australia (Geoscience Australia) and Mineral Resources Tasmania,  Government of Tasmania

Australian Government Security ClassificationSystem
https://www.protectivesecurity.gov.au/Pages/default.aspx

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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 Tasmanian Tiers Airborne Magnetic, Radiometric and Digital Elevation Survey, TAS, 2021, (P5003), Block 2, radiometric line data were acquired in 2021 by the TAS Government, and consisted of 32951 line-kilometres of data at 200m line spacing and 80m terrain clearance.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: This Tasmanian Tiers Airborne Magnetic, Radiometric and Digital Elevation Survey, TAS, 2021, (P5003), Block 2, radiometric line data is an airborne-derived radiometric data for the Tasmanian Tiers Magnetic and Radiometric Survey, 2021. The data was acquired under the project No. 5003 for the geological survey of TAS. A total of 32951 line-kilometres of data at a line spacing of 200m were acquired during this 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. 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).

Notes

Purpose
This data set forms part of the Tasmania and national airborne magnetic and radiometric mosaic that is continually updated with higher resolution datasets. When integrated with other geological, geochemical, geophysical or technical datasets, it provides pre-competitive insight into the mineral, groundwater, energy, soil and other resource potential of the continental land mass. Subject to the quality control, equipment tolerances and inherent limitations on the measurements themselves, it may also be employed for other geophysical and scientific investigations into the earth.

Issued: 23 01 2023

Data time period: 08 02 2021 to 02 04 2021

This dataset is part of a larger collection

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148.32,-41.5 148.32,-42.06 146.02,-42.06 146.02,-41.5 148.32,-41.5

147.17,-41.78

text: westlimit=146.02; southlimit=-42.06; eastlimit=148.32; northlimit=-41.5; projection=None

Subjects
Australia | EARTH SCIENCES | Earth sciences | GADDS2.0 | NASVD | Published_External | TAS | airborne digital data | gamma-ray | geophysical survey | geophysics | geoscientificInformation | line | potassium | radiometrics | spectrometry | survey 5003 | 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 Tasmanian Tiers Airborne Magnetic, Radiometric and Digital Elevation Survey, TAS, 2021, (P5003), Block 2, radiometric line data (Tasmanian Tiers Airborne Magnetic, Radiometric and Digital Elevation Survey, TAS, 2021, (P5003), Block 2, radiometric line data file download)

url : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/TAS/line/P5003/P5003-line-radiometric-Block2.nc

OPeNDAP web service for Tasmanian Tiers Airborne Magnetic, Radiometric and Digital Elevation Survey, TAS, 2021, (P5003), Block 2, radiometric line data (Tasmanian Tiers Airborne Magnetic, Radiometric and Digital Elevation Survey, TAS, 2021, (P5003), Block 2, radiometric line data OPeNDAP)

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/TAS/line/P5003/P5003-line-radiometric-Block2.nc.html

Tasmanian Tiers Airborne Magnetic, Radiometric and Digital Elevation Survey, TAS, 2021, (P5003), Block 2, radiometric line data OPeNDAP

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/TAS/line/P5003/P5003-line-radiometric-Block2.nc.html

Identifiers
ACN 633 798 857