Cobar magnetic and radiometric survey, 2021

Brief description

Survey Name: Cobar magnetic and radiometric survey, 2021
Datasets Acquired: Magnetics, Radiometrics and Elevation
Geoscience Australia Project Number: P5009
Acquisition Start Date: 8/06/2021
Acquisition End Date: 10/08/2021
Flight line spacing: 200 m
Flight line direction: East-West (090-270)
Total distance flown: 53,617 line-km
Nominal terrain clearance: 60 m
Blocks: 7
Data Acquisition: Magspec Airborne Surveys
Project Management: Geoscience Australia
Quality Control: Baigent Geosciences P.L. on behalf of Geoscience Australia
Dataset Ownership: Geological Survey of NSW 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 and without NASVD spectral filtering and standard IAEA processing, pressure, temperature and survey altitude.

2. Grids
Gridded data in ERMapper (.ers) format (GDA94, 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).
• Thorium concentration (ppm, with NASVD, standard processing).
• Uranium concentration (ppm, with NASVD, standard processing).
• Radar-derived digital elevation model (geoidal).

3. Images
Data in tagged image format (TIF), (GDA94, 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).
• Thorium concentration (ppm, with NASVD, standard processing).
• Uranium concentration (ppm, with NASVD, standard processing).
• Radar-derived digital elevation model (geoidal).

4. Reports
• P5009_2585_V3_GA_Cobar_Logistics_Report
• P5009_BGS_GA_CobarQCReport

© Geological Survey of New South Wales 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 License. (http://creativecommons.org/licenses/by/4.0/legalcode).

Lineage

Maintenance and Update Frequency: notPlanned

Statement: There is no lineage attached to this dataset. it is stand-alone and will supplement existing but surrounding high resolution magnetic and radiometric data in the Cobar district of NSW

Notes

Purpose
This data set forms part of the NSW 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.