Monopoly |
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| Authors: | Barbara M Hodder |
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| Institution: | Institute of Geological Sciences, Murchison House, West Mains Road, Edinburgh EH9 3LA |
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| Abstract: | Summary. A model for the geomagnetic secular variation field is given, consisting of a series of magnetic monopoles at the surface of the Earth's core. These are distributed according to the density of the data to allow more detailed representation in areas where the density of observations is high, without introducing spurious detail where data are sparse. A monopole model is calculated from observatory secular change data for the epoch 1957.5–1962.5 and its usefulness assessed. |
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