Geoscience Australia (GA), in collaboration with the New South Wales (NSW) Government’s Geological Survey of NSW, undertook a horizontal magnetic gradient and radiometric survey in the Yathong area of NSW. This survey was fully funded by the NSW Government as part of a project to find deep groundwater for use in times of drought.
Survey Name: Yathong
Datasets Acquired: Horizontal Magnetic Gradient, Radiometrics, and Elevation
Geoscience Australia Project Number: P5023
Acquisition Start Date: 21/05/2023
Acquisition End Date: 14/09/2023
Flight line spacing: 200 m
Flight line direction: East-West (090-270 degrees)
Total distance flown: 65,503.75 line-km's
Nominal terrain clearance: 80 m
Data Acquisition: Magspec Airborne Surveys Pty Ltd
Project Management: Geoscience Australia
Quality Control: Geoscience Australia
Dataset Ownership: Geological Survey of New South Wales
Datum: Geocentric Datum of Australia 2020 (GDA2020)
Projection: Map Grid of Australia Zone 55 (MGA55)
Included in this release:
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Point-located Data - ASCII-column (.dat) and NetCDF (.nc) format.
• Magnetic diurnal;
• Magnetic gradient raw-edited;
• Magnetic gradient reduced;
• Radiometrics raw-edited;
• Radiometrics reduced.
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Gridded data - ERMapper (.ers) format.
• Gradient enhanced Total Magnetic Intensity (TMI);
• Gradient enhanced TMI Reduced to Pole (RTP);
• Gradient enhanced TMI RTP with First Vertical Derivative (1VD);
• Dose rate (with NASVD and standard processing);
• Potassium concentration (with NASVD, standard processing);
• Thorium concentration (with NASVD, standard processing);
• Uranium concentration (with NASVD, standard processing);
• Radar-derived digital elevation model (geoidal).
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Reports.
• Calibration report;
• Operations and processing summary report.