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GSWA Cornish Helena East Canning 2 Doserate Grid Geodetic

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Created 13/01/2025

Updated 13/01/2025

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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. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered terrestrial dose rate grid. This GSWA Cornish Helena East Canning 2 Doserate Grid Geodetic has a cell size of 0.00083 degrees (approximately 90m) and shows the terrestrial dose rate of the Cornish - Helena, WA, 2009 (East Canning 2). The data used to produce this grid was acquired in 2009 by the WA Government, and consisted of 124002 line-kilometres of data at 400m line spacing and 60m terrain clearance.

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Title GSWA Cornish Helena East Canning 2 Doserate Grid Geodetic
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/06612464-ed7b-4cea-95c9-a0e84f58c3cb
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 01/06/2009 - 31/10/2009
Geospatial Coverage {"type": "Polygon", "coordinates": [[[125.9429, -22.0108], [127.5354, -22.0108], [127.5354, -19.4901], [125.9429, -19.4901], [125.9429, -22.0108]]]}
Data Portal data.gov.au