Authors / CoAuthors
Abstract
Survey Name: Tasmanian Tiers Datasets Acquired: Magnetics, Radiometrics and Elevation Geoscience Australia Project Number: P5003 Acquisition Start Date: 10/02/2021 Acquisition End Date: 02/04/2021 Flight line spacing: 200 m Flight line direction: East-West (090-270) Total distance flown: 33,019 line-km Nominal terrain clearance: 80 m Blocks: 5 Data Acquisition: Magspec Airborne Surveys Project Management: Geoscience Australia Quality Control: Geoscience Australia Dataset Ownership: Mineral Resources Tasmanian and Geoscience Australia Included in this release: 1. Point-located Data ASCII-column data with accompanying description and definition files. • Magnetics corrected i. Magnetic data with corrections for diurnal, IGRF, tie-levelling, micro-levelling. ii. Elevation data converted to geoidal values and a digital elevation model. • Radiometrics corrected i. Equivalent ground concentrations of radioelements with NASVD spectral filtering and standard IAEA processing. 2. Grids Gridded data in ERMapper (.ers) format (GDA2020, MGA55). • Total magnetic intensity (TMI). • TMI reduced to pole (RTP). • TMI RTP with first vertical derivative applied. • Dose rate (with NASVD and standard processing). • Potassium concentration (with NASVD, standard processing, 3D topographic correction). • Thorium concentration (with NASVD, standard processing, 3D topographic correction). • Uranium concentration (with NASVD, standard processing, 3D topographic correction). • Laser-derived digital elevation model (geoidal). • Radar-derived digital elevation model (geoidal). 3. Outlines (survey extents) • Polygon outlines showing the extent of each block and the entire survey in ArcGIS shapefile format (GDA2020, MGA55). 4. Reports • P5003_3D_topographic_correction_of_gamma_ray_data.pdf i. Details of the 3D topographic corrections applied to the radiometric data. • P5003_calibration_report_fixed_wing.pdf i. Details of the calibration performed on the fixed wing aircraft (block 1). • P5003_calibration_report_helicopter.pdf i. Details of the calibration performed on the helicopter (blocks 2-5). • P5003_operations_and_processing_report.pdf i. Summary of the data acquisition and processing. © Mineral Resources Tasmania, Government of Tasmania and Commonwealth of Australia (Geoscience Australia) 2021. With the exception of the Commonwealth Coat of Arms and where otherwise noted, this product is provided under a Creative Commons Attribution 4.0 International Licence. (http://creativecommons.org/licenses/by/4.0/legalcode).
Product Type
dataset
eCat Id
145547
Contact for the resource
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Point of contact
- Contact instructions
- MEG
Resource provider
Digital Object Identifier
Keywords
- theme.ANZRC Fields of Research.rdf
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- GEOPHYSICS
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- radiometrics
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- magnetics
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- elevation
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- gamma-ray
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- total magnetic intensity
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- Tasmania
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- P5003
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- Published_External
Publication Date
2021-07-12T23:46:16
Creation Date
Security Constraints
Legal Constraints
Status
completed
Purpose
Airborne Magnetic, Radiometric and Elevation Dataset
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
Parent Information
Extents
[-42.0643, -41.4984, 146.0171, 148.3216]
Reference System
GDA2020 / Geocentric (EPSG:7842)
Spatial Resolution
Service Information
Associations
Source Information