HR: 14:10h
AN: GP33A-03 INVITED     [Abstracts]
TI: Multi-satellite Observations of Ionospheric and Field-aligned Currents in the Polar Ionosphere.
AU: * Vennerstrom, S
EM: sv@dsri.dk
AF: Danish Space Research Institute, Juliane Maries Vej 30, Copenhagen O, 2100 Denmark
AU: Moretto, T
EM: tmoretto@lepvax.gsfc.nasa.gov
AF: NASA Goddard Space Flight Centre, NASA/GSFC Code 696 , Greenbelt, MD 20771 United States
AU: Friis-Christensen, E
EM: efc@dsri.dk
AF: Danish Space Research Institute, Juliane Maries Vej 30, Copenhagen O, 2100 Denmark
AB: Traditionally field-aligned currents in the polar region have been studied using data from only a single satellite but on a statistical basis. Some aspects can however only be investigated by the multi-satellite approach. We review recent work on multi-satellite observations of ionospheric and field-aligned currents in the polar region, discussing the advantages of the multi-satellite approach over a single satellite investigation. The validity of the assumptions normally applied in the single satellite approach is investigated, as well as the possibility to separate the effect of field-aligned and horizontal ionospheric currents in the satellite data.
DE: 2409 Current systems (2708)
DE: 2708 Current systems (2409)
SC: Geomagnetism and Paleomagnetism [GP]
MN: 2004 AGU Fall Meeting