Modelling jovimagnetic secular variation: Results and implications

Details Modelling jovimagnetic secular variation: Results and implications Modelling jovimagnetic secular variation: Results and implications

Publishing date

Oct 2011

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..907r&link_type=abstract

Journals

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.907

Science

Computer Science

Type

Scientific paper

Abstract

Taking a regularised minimum norm approach, two models of Jupiter's magnetic field have been created using all data collected by NASA within 12 RJ of the planet. The first model is time-averaged over the whole dataset, whilst the second permits linear time variation of the field. Comparison of these allow inferences to be made about jovimagnetic secular variation (JSV), with our favoured model indicating a 0.14% yr-1 decrease in the dipole magnetic moment between 1973-2003. Further analysis suggests that this change cannot simply be attributed to an inadequacies of the System III 1965.0 reference frame.

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