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Detailed Reference Information |
Kim, H.R., von Frese, R.R.B., Kim, J.W., Taylor, P.T. and Neubert, T. (2002). Ørsted verifies regional magnetic anomalies of the Antarctic lithosphere. Geophysical Research Letters 29: doi: 10.1029/2001GL013662. issn: 0094-8276. |
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Initial magnetic measurements from the ¿rsted satellite reveal lithospheric anomalies over the Antarctic that are similar to those obtained by Magsat. Accordingly, lithospheric anomalies can be extracted from the ¿rsted data, despite the much greater operational altitude of ¿rsted (650--865 km) relative to Magsat (350--550 km). Furthermore, these correspondences confirm the lithospheric origins for the resulting small-amplitude anomalies in the satellite data. In studies of the Antarctic lithosphere, the Magsat data particularly were limited by the large relative uncertainties of their lithospheric components. These uncertainties occurred because the short nearly seven-month mission more than 20 years ago collected data over austral high summer and early fall when the contaminating large-amplitude external field effects were at a maximum. Therefore, the recent and more numerous ¿rsted measurements greatly facilitate our efforts to separate effectively the core, lithospheric, and external field components for enhanced studies of the Antarctic lithosphere. |
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BACKGROUND DATA FILES |
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Abstract |
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Keywords
Geomagnetism and Paleomagnetism, Reference fields (regional, global) |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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