Session - Geomagnetically Induced Current and Space Weather

E. Clarke, P. Wintoft, A. Viljanen, A. Thomson

A well known ground effect of space weather is that of geomagnetically induced currents (GIC) or geomagnetically induced potential (GIP). These occur during geomagnetic storms and sub-storms and are potentially a hazard to power transmission networks, railway signalling operations and pipeline protection mechanisms. For example, extreme magnetic storms have resulted in widely reported electricity network problems in the past and could do so again in the future.

Whilst it is accepted that increases in the electric field or in the rate of change of the magnetic field are important, questions remain over details of the physical phenomena. For example, how important is the length of period over which magnetic storms, and therefore high rates of change, last? Do single peaks have the most impact? Is the effect of cumulative damage over longer periods with many storms also important and can this damage be monitored and modelled?

This session welcomes contributions on all aspects of GIC, from a solar-terrestrial physics, a geophysical and/or an engineering perspective. Predictions and models of GIC and how they are applied in practice, vulnerability of networks, systems and equipment to GIC and GIP, monitoring of GIC either by proxy or by direct measurement and studies on the risk, where the consequences of GIC are considered, are particularly encouraged.


Talks
Tuesday November 24, 11:00 - 13:00, Mercator

Poster Viewing
Tuesday November 24, 10:00 - 11:00, Poster area

Click here to toggle abstract display in the schedule

Talks : Time schedule

Tuesday November 24, 11:00 - 13:00, Mercator
11:00GIC in the Norwegian Power GridOhnstad, T et al.Invited Oral
11:20GIC events and their impact on Finnish transmission network during geomagnetic storm on 17th and 18th of March 2015Rauhala, T et al.Invited Oral
11:40Geomagnetic Conditions in Ireland during the St. Patrick’s Day 2015 StormBlake, S et al.Oral
11:55GIC at mid-latitudes under extreme Dst scenariosKelly, G et al.Oral
12:10Modelling of the natural electromagnetic interference for GIC applicationsTrichtchenko, L et al.Oral
12:25Nowcasting Ground Magnetic Perturbations with the Space Weather Modeling FrameworkWelling, D et al.Oral
12:40 Analysis of the importance of the Earth resistivity and the power network status in modelling geomagnetically induced currents in SpainTorta, J et al.Oral


Posters

Tuesday November 24, 10:00 - 11:00, Poster area
1Real-time estimation of geomagnetically induced currentsViljanen, A et al.p-Poster
2Solar Shield: first principles GIC forecasting using state-of-the-art space science simulationsPulkkinen, A et al.p-Poster
3An Analytical Method for Evaluation of Solar Storm Impact on Power System OperationSokolova, O et al.e-Poster
4An analysis of mid-latitude magnetic perturbations during geomagnetic stormsMorley, S et al.e-Poster
5Developing an Aurora Detection System and Educational Resources for Space Weather using a Raspberry Pi MagnetometerBingham, S et al.p-Poster