Space weather and UK geomagnetically induced currents

Thomson, Alan; McKay, Allan. 2004 Space weather and UK geomagnetically induced currents. [Poster] In: COST 724 Action on Space Weather Management Meeting, Trieste, Italy, October 2004. (Unpublished)

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Abstract/Summary

Geomagnetically Induced Currents (GIC), which can flow in technological systems such as power transmission grids, are a consequence of the geoelectric field induced at the surface of the Earth during geomagnetic storms. This poster describes the development of a 3D 'Thin-Sheet' geoelectric field model which covers the whole of the UK and includes the influence of the surrounding shelf seas. The model can be used to compute the response of the geoelectric field to geomagnetic storms. In conjunction with a power grid model the geoelectric field model enables us to estimate GIC flows in UK power networks. The geoelectric field and power grid models together form one component of a near real time GIC warning package that is currently being developed by BGS in conjunction with Scottish Power plc. This is known as ‘SWIMIC’ (Solar Wind monitoring and Induction Modelling for Induced Currents). The package is illustrated here, using examples of model outputs obtained during the October 2003 severe geomagnetic storm and taken from the project web site.

Item Type:	Publication - Conference Item (Poster)
Programmes:	BGS Programmes > Seismology and Geomagnetism
NORA Subject Terms:	Earth Sciences Electronics, Engineering and Technology
Date made live:	15 Nov 2012 12:53 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/20390

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