Session 1 - Geomagnetic Storms: a Geomagnetically Induced Current perspective

Mirko Piersanti (INFN); Roberta Tozzi
Monday 18/11, 13:00-14:00
Tuesday 19/11 11:15-12:30 & 17:15-18:30

In the highly technological society we are living, the study of Space Weather is becoming increasingly important to protect the use of critical infrastructures both in space and on Earth. A recent USA Government research on the economic impact of a severe geomagnetic storm shows that the potential costs on the USA power grid could be of 1-2 trillion dollars.
During a geomagnetic storm, the principal magnetospheric currents and the connected ionospheric currents are intensified causing rapid changes of the geomagnetic field. These variations generate Geomagnetically Induced Currents (GICs) at ground that can disrupt the operation of power grids, magnetic surveying, etc.

This session aims to achieve a significant improvement in the global knowledge on the following important open questions:
What are the magnetosphere-ionosphere processes driven by Space Weather events responsible for driving extreme GICs?
What are the roles played by ionospheric turbulence, ground conductivity and the actual affected networks themselves in amplifying GICs?
What are the main parameters/proxies/indices that could be used to forecast the building up of intense GICs?

In this session, we invite papers about recent progress and current understanding of the physical processes of GICs, their associated impact on technologies as well as about the innovative use of mathematical methods that could provide new perspectives on GIC related research. Submissions that focus on observations, modelling, and theoretical understanding are all encouraged.

Monday November 18, 13:00 - 14:00, Rogier
Tuesday November 19, 11:15 - 12:30, Rogier
Tuesday November 19, 17:15 - 18:30, Rogier

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Talks : Time schedule

Monday November 18, 13:00 - 14:00, Rogier
13:00Science challenges in modelling of geomagnetically induced currentsViljanen, A et al.Invited Oral
13:30Comparing 1D and 3D ground conductivity models for global geomagnetically induced current forecastsHonkonen, I et al.Oral
13:45Validating the Space Weather Modeling Framework (SWMF) for applications in northern Europe: Ground magnetic perturbation validation Kwagala, N et al.Oral

Tuesday November 19, 11:15 - 12:30, Rogier
11:15On the regional variability of dB/dt and its significance to GICDimmock, A et al.Oral
11:30Mid-latitude magnetic field perturbations and geomagnetically induced currents during the 07-08 September 2017 geomagnetic stormClilverd, M et al.Oral
11:45The magnetospheric and ionospheric contribution to Geomagnetically Induced Currents during the September 6, 2017 Geomagnetic Storm.D'angelo, G et al.Oral
12:00GIC modelling and mitigation of New Zealand’s electrical transmission network during extreme geomagnetic storms.Mac manus, D et al.Oral
12:15Validating GIC models with line current measurements using the Differential Magnetometer MethodBeggan, C et al.Oral

Tuesday November 19, 17:15 - 18:30, Rogier
17:15On the dynamical properties of geomagnetic indices for Space Weather purposesAlberti, T et al.Invited Oral
17:45The Contribution of Sudden Commencements to the Rate of Change of the Surface Magnetic Field in the UKSmith, A et al.Oral
18:00Using PC indices to predict violent GIC events threatening power gridsStauning, P et al.Oral
18:15Effects of GIC on pipelines: geomagnetic storms and high speed streams Trichtchenko, L et al.Oral


1Preliminary investigation of the possibility of GIC development in GreeceBoutsi, A et al.p-Poster
2Assessing the importance of variability in Electric field and conductance for the generation of GICKavanagh, A et al.p-Poster
31-D model of geomagnetically induced currents in the mexican power gridGonzalez esparza, J et al.p-Poster
4Very low likelihood of a power grid black-out in Belgium during an extremely severe geomagnetic stormJanssens, J et al.p-Poster
5Implementation of the system for monitoring, processing, analyzing and forecasting the geomagnetic activity within the Surlari Observatory Asimopolos, L et al.p-Poster
6Correlation analysis of field-aligned currents measured by SwarmDunlop, M et al.p-Poster
7Comparative and wavelet analysis of geomagnetic data from observatories in INTERMAGNET network, recorded during geomagnetic stormsAsimopolos, N et al.p-Poster
8Geomagnetic induced currents in Southwest PortugalPinheiro, F et al.p-Poster
9Geomagnetically induced currents and electrical grid failures in Poland during solar cycle 24Gil, A et al.p-Poster
10The influence of substorms on extreme rates of change of the surface horizontal magnetic field in the U.K. and at other latitudesFreeman, M et al.p-Poster
11Standalone Geomagnetically Induced Current Data Logger in Substation Transformers with Open-Loop Hall-Effect Based SensorsPais, M et al.p-Poster
13The substorm influence on geomagnetically induced currents registered at electric power linesBelakhovsky, V et al.p-Poster
14Statistical analysis of geomagnetic storms by CIR in solar cycle 24Sejin, C et al.p-Poster
15ESA’s Geomagnetic Expert Service Centre is Alive AgainHesse, M et al.p-Poster
16Modelling directionality, seasonality, and local time dependences in extreme geomagnetic field fluctuationsWild, J et al.p-Poster
17The space weather environment before the Tenerife blackoutCid, C et al.p-Poster