CEDAR email: Call for Papers for Session A24 26th IUGG General Assembly, Prague, Czech Republic, Jun 22 - Jul 2, 2015

[Wing, Simon]

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Call for Papers for Session A24  26th IUGG General Assembly, Prague, Czech Republic, Jun 22 - Jul 2, 2015
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Abstract Deadline: Jan 31, 2015
A24 The Plasmasheet - Ionosphere, a Coupled System: Sinks, Sources, Transport and the Roles of Field-Aligned Currents and Ion Outflow (Div. III/Div. II)
Convener: Simon Wing (Laurel, USA)
Co-conveners: Jay Johnson (Princeton, USA), Larry Lyons (Los Angeles, USA), Göran Marklund (Stockholm, Sweden), Kanako Seki (Nagoya, Japan)
Description
Observations, modeling, and theory have now reached the point where the plasma sheet and its coupling to the ionosphere can be considered as a whole at Earth as well as at other planetary bodies, rather than treated as separate issues within ionosphere or plasma sheet physics. The plasma sheet is formed from particles entering directly and indirectly from the solar wind and the ionosphere. The structure and asymmetry of its pressure, temperature, density, and entropy are determined by the particle entry, transport, and loss processes. All these processes are in turn strongly affected by the electrodynamical coupling with the ionosphere. The plasma sheet dynamics, in particular through the field-aligned currents, strongly affects the ionosphere via particle precipitation and Joule heating. The ionospheric outflows can affect the transport processes in the plasma sheet. Furthermore, the Region 2 currents cause strong modifications of the global ionospheric electric field distribution, at middle latitudes by shielding and penetrating electric fields, at higher latitudes supporting the SAPS, and in the auroral region causing the Harang electric field reversal. In contrast to Earth, the interaction between the plasma sheet and the ionosphere at the giant magnetospheres is largely driven internally by centrifugal stresses rather than by the solar wind. Plasma from the internal sources is transported radially outward and lost down the magnetotail. Papers are solicited for this symposium on any of the above or related topics, of importance for determining the formation of the plasma sheet (sources and losses), its structure and dynamics, and/or the effects of electrodynamical coupling on ionospheric and magnetospheric processes. Papers dealing with the system as a whole or the coupling processes are also appropriate.



General information on IUGG can be found at http://www.iugg2015prague.com/

For questions specific to the session, please email simon.wing at jhuapl.edu


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