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Automated real time detection of solar wind shocks and consequences for the identification of SSC and SI events

Clarke, E.; Baillie, O.; McKay, A.J.; Reay, S.J.; Thomson, A.W.P.. 2005 Automated real time detection of solar wind shocks and consequences for the identification of SSC and SI events. [Poster] In: IAGA 2005 Scientific Assembly, Toulouse, France, 18-29 July 2005. (Unpublished)

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Abstract/Summary

Algorithms have been developed to automatically detect Earth bound shocks in the solar wind as measured by the ACE satellite. These involve simple threshold techniques and wavelet analysis. One practical application of this shock detection is that it can provide power companies with advanced warning of the potential for geomagnetically induced currents. The automatically detected shocks have been tested against published lists of known shocks and accuracy statistics are presented. Another use for automated shock detection is an aid to the preparation of lists of rapid variations: SSC and SI events. To contribute to the IAGA published list of rapid variations, as prepared by Ebro Observatory, BGS staff routinely identify, scale and classify the events recorded at the three UK magnetic observatories. This is carried out using the criteria from the Atlas of Rapid Variations (1959) and subsequent IAGA instructions. The usefulness of automated detection of solar wind shocks for this task is examined by testing these against lists of identified SSC and SI events.

Item Type: Publication - Conference Item (Poster)
Programmes: BGS Programmes > Seismology and Geomagnetism
NORA Subject Terms: Earth Sciences
Date made live: 14 Nov 2012 13:20
URI: http://nora.nerc.ac.uk/id/eprint/20343

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