HR: 0800h
AN: SA51B-1137    [Abstracts]
TI: Effects of Auroral Precipitation on Ionosphere and Thermosphere
AU: * Lu, G
EM: ganglu@ucar.edu
AF: National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 38307 United States
AU: Richmond, A
EM: richmond@ucar.edu
AF: National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 38307 United States
AU: Roble, R
EM: roble@ucar.edu
AF: National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 38307 United States
AU: Immel, T
EM: immel@ssl.berkeley.edu
AF: Space Sciences Laboratory University of California at Berkeley, Centennial at Grizzly Peak, Berkeley, CA 94720 United States
AB: Auroral precipitation is one important form of magnetospheric energy input to the high-latitude ionosphere and thermosphere. It has a significant impact on thermospheric chemistry, eneregics, and dynamics, as well as ionospheric electrodynamics. To illustrate the need for an accurate specification of auroral precipitation, we show how global ionospheric conductivity, plasma convection, electric currents, and Joule heating are affected by the spatial and temporal variations in auroral precipitation. Effects of auroral precipitation on the thermospheric composition and heating and on the electron density are also discusse
DE: 0355 Thermosphere: composition and chemistry
DE: 2431 Ionosphere/magnetosphere interactions (2736)
DE: 2435 Ionospheric disturbances
DE: 3369 Thermospheric dynamics (0358)
SC: SPA-Aeronomy [SA]
MN: Fall Meeting 2005