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Parkes 1 100k total count 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 Parkes 1 100k total count grid geodetic has a cell size of 0.00042 degrees (approximately 43m) and shows the terrestrial dose rate of the Forbes Detail, NSW, 1993. The data used to produce this grid was acquired in 1993 by the NSW Government, and consisted of 49055 line-kilometres of data at a line spacing between 200m and 400m, and 100m terrain clearance.

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Title Parkes 1 100k total count grid geodetic
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/1c81d7ec-264e-4677-a0c1-851f5b9791cb
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 02/03/1993 - 09/05/1993
Geospatial Coverage {"type": "Polygon", "coordinates": [[[147.9938, -33.3385], [148.5117, -33.3385], [148.5117, -32.9891], [147.9938, -32.9891], [147.9938, -33.3385]]]}
Data Portal data.gov.au