Session 12 - Thermosphere and Ionosphere : Irregular dynamics and structures as a response to Space Weather Events

Mirko Piersanti (University of L'Aquila), Massimo Materassi (CNR, Italy)
Friday 9/11, 09:00-10:30 & 11:15-12:45
MTC 00.15, Small lecture room

The Thermosphere – Ionosphere system is a medium highly structured on many time and spatial scales. On the one hand, it shows rather stable and robust large patterns of convection and currents (such as Sudden Impulses current convection pattern); on the other hand, high and low latitudes show very irregular, highly time-variable small scale patterns (namely, plasma turbulence causing scintillation on trans-ionospheric L-band signals, plasma bubbles, large scale travelling ionospheric disturbance). Both the exact mechanism of response to external drivers, and the role played by the thermosphere (in terms of neutral wind, atmospheric waves and plasma drift) in generating Ionosphere irregularities is not completely understood yet.

In the last two decades, the interest in Ionospheric irregularities at different time and space scales has been growing fast, because of the considerable effects on the manmade technological infrastructure such as: geomagnetically induced currents, or the threats to performance of the satellite communication and navigation. Since those irregularities are due to the presence and variability of plasma structures in the ionosphere, understanding physical mechanisms that regulate the formation of the latter and their dynamics, as a result of magnetosphere-ionosphere-thermosphere coupling, is crucial to develop reliable prediction models and mitigation techniques, in order to be able to tackle the effect on technological systems.

This Session solicits and welcomes contributors to make the point on their research about how such multiscale patterns respond to the Sun activity and to the ionosphere-thermosphere interaction. Such a subject is very relevant from a technological point of view as both radio communications and industrial facilities may be vulnerable to plasma turbulence and ionospheric induced currents at ground, respectively.

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Talks : Time schedule

Friday November 9, 09:00 - 10:30, MTC 00.15, Small lecture room
09:00On the Role of Dynamical Complexity and Turbulence in the IonosphereConsolini, G et al.Invited Oral
09:30Investigating dynamical complexity in the topside ionosphere using information-theoretic measuresBalasis, G et al.Oral
09:45New capabilities for prediction of high-latitude ionospheric scintillation: A novel approach with machine learningMcgranaghan, R et al.Oral
10:00Solar Activity and Space Weather Effects on Earth's ThermosphereBerrilli, F et al.Oral
10:15A self-consistent approach to analysis of ionospheric and thermospheric parameter long-term trendsMikhailov, A et al.Oral

Friday November 9, 11:15 - 12:45, MTC 00.15, Small lecture room
11:15An assessment of the ability of the TIEGCM Rayleigh-Taylor growth rate to reproduce the daily occurrence variability of Equatorial Plasma Bubbles Carter, B et al.Invited Oral
11:45TechTIDE Horizon 2020 project: Warning and mitigation technologies for travelling ionospheric disturbances effectsBelehaki, A et al.Oral
12:00TIDs triggered by CIR/HSSS-related storms Buresova, D et al.Oral
12:15Towards the calibration of empirical and physics-based thermospheric neutral density models considering ionosphere couplingLalgudi gopalakrishnan, G et al.Oral
12:30The detection of ultra-relativistic electrons in low Earth orbit by the LYRA instrument on board the PROBA2 satelliteKatsiyannis, T et al.Oral


1The response of the ionosphere to HILDCAA events over the African mid-latitude sectorMatamba, T et al.p-Poster
2Atmospheric density determination using high-accuracy satellite GPS dataRen, T et al.p-Poster
3Electron Density anomalies recorded by ground and satellite instruments in correspondence of Rome during the last solar minimumPerrone, L et al.p-Poster
4Ionospheric effects of the September 2017 space weather storm over Brazil Damaceno, J et al.p-Poster
5Study of the impact of St. Patrick's 2013 and 2015 events on the midlatitude ionosphere over EuropeAlfonsi, L et al.p-Poster
6On the characterization of density fluctuations using Swarm data D'amicis, R et al.p-Poster
7An entropic analysis of the polar cap current systemsD'angelo, G et al.p-Poster
8Geomagnetically induced currents during the September 6, 2017 Geomagnetic storm.Di matteo, S et al.p-Poster
9Seasonal effect of thermospheric response to geomagnetic stormsBounhir, A et al.p-Poster
10Surprising phenomenon in ionospheric response to geomagnetic storm of 15 August 2015Lastovicka, J et al.p-Poster
11Development of an operational prototype for the determination of the thermospheric density on the basis of a coupled thermosphere-ionosphere model Lalgudi gopalakrishnan, G et al.p-Poster
12Ionospheric ion response to the space weather event during 6-8 September 2017Yamauchi, M et al.p-Poster
13Ionospheric response to strong geomagnetic storms from 2017 analysed on the basis of the LOFAR data.Matyjasiak, B et al.p-Poster
14TEC dependence on different Space Weather parameters in Mexican regionSergeeva, M et al.p-Poster
15Solar terminator and corresponding variability within ionospheric plasmaKoucká knížová, P et al.p-Poster