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Parallel sessions
Sessions
id
date time
2022-03-08 11:27:00
Electrical currents bridging micro- and macro-scales in geospace and beyond
SolarSystem3
Electrical currents play a key role in space plasma research in a variety of different regimes. Small-scale currents are a large part of the microphysics currently being investigated by MMS (Magnetospheric Multiscale) at Earth, shedding light on reconnection, turbulence, and shocks. At larger scales, field-aligned currents (also known as Birkeland currents) electrodynamically communicate stresses between different areas of planetary magnetospheres; these have been investigated with local in-situ measurements at Earth (e.g. Swarm), Jupiter (Juno) and Saturn (Cassini), as well as global-scale measurements at Earth with AMPERE (the Active Magnetosphere and Planetary Electrodynamics Response Experiment). Currents flow above the ionosphere, connected to large-scale plasma flows, which are a key area of interest for understanding how the ionosphere reacts to external stimuli from the solar wind. And, finally, geomagnetically induced currents (GICs) flow at Earth's surface as a result of the ionospheric current flows. Understanding these small- and large-scale current systems is vital to understanding solar wind-magnetosphere interactions through the solar system. This session aims to bring people working on current systems in all contexts together and we particularly encourage people to submit abstracts concerning the following topics: Currents in solar or stellar contexts; The relationship between different current systems (e.g. ionospheric currents and GICs) ; Large-scale statistical analysis of current systems; Modelling of current systems; Current systems relevant to microphysics
John C. Coxon, Imogen Gingell, Gemma Richardson, Robert M. Shore
Wed. 09:00-10:30
09.00-09.20 Julia Stawarz: Small-Scale Current Sheets and Turbulence-Driven Reconnection in Earth’s Magnetosheath [invited]
09.20-09.32 Harry Currell Lewis: The influence of plasma conditions on electric fields in magnetosheath turbulence
09.32-09.44 Martin Archer: What are the ionospheric and ground magnetic signatures of global magnetopause surface modes?
09.44-09.56 Sandra Catherine Chapman: Dynamical networks approach to the fundamentals of the dynamics of ionospheric current systems and their ground impacts
09.56-10.08 Dmitrii Kolotkov: Quasi-periodic pulsations in solar and stellar flares as new proxy of electric current systems in coronae
10.08-10.28 Rachel Bailey: Building a regional GIC forecasting tool based on incoming solar wind data [invited]