HR: 1340h
AN: SH53B-0326    [Abstracts]
TI: Global distributions of auroral emissions derived from POLAR UVI observations and parameterized by the IMF strength and direction
AU: * Petrov, V G
EM: vpetrov@engin.umich.edu
AF: SPRL/AOSS, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109 United States
AU: Papitashvili, V O
EM: papita@umich.edu
AF: SPRL/AOSS, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109 United States
AU: Clauer, C R
EM: bob.clauer@umich.edu
AF: SPRL/AOSS, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109 United States
AB: In this study, we show our recent results in parameterizing POLAR UVI observations (in LBH short and long wavelength bands of auroral emissions) by the IMF strength/direction and Earth's dipole tilt (seasons). A mathematical representation for this parameterization is similar to our flexible, IMF-dependent models of the high-latitude ionospheric convection and field-aligned currents, derived from the DMSP and \O rsted satellites, respectively. In many respects, we confirm results obtained earlier by Baker et al. (2003) in Michigan and by Newell, Liou, Shue et al. (2001) of JHU/APL; however, none of the previous studies has yet addressed the full parameterization of auroral emissions by the IMF strength and direction during the solar activity cycle. These global distributions of auroral emissions can be utilized for construction of the IMF-dependent models of ionospheric conductivity for the quiet and disturbed conditions.
UR: http://mist.engin.umich.edu/limie.html
DE: 2407 Auroral ionosphere (2704)
DE: 2409 Current systems (2708)
DE: 2447 Modeling and forecasting
DE: 2704 Auroral phenomena (2407)
DE: 2708 Current systems (2409)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting