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Murloocoppie Wintinna magnetic grid geodetic

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Created 13/01/2025

Updated 13/01/2025

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Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data 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. This Murloocoppie Wintinna magnetic grid geodetic has a cell size of 0.00083 degrees (approximately 87m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1991 by the SA Government, and consisted of 130600 line-kilometres of data at 400m line spacing and 100m terrain clearance.

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Title Murloocoppie Wintinna magnetic grid geodetic
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/e5e14a55-6b2f-4dca-9584-95f4ac6498de
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 14/11/1991 - 24/10/1992
Geospatial Coverage {"type": "Polygon", "coordinates": [[[133.4883, -29.1442], [135.0117, -29.1442], [135.0117, -26.9058], [133.4883, -26.9058], [133.4883, -29.1442]]]}
Data Portal data.gov.au