HR: 16:25h
AN: SM44A-04 INVITED     [Abstracts]
TI: Solar Cycle Variations Observed in the High-Latitude Ionosphere
AU: * Kihn, E A
EM: Eric.A.Kihn@noaa.gov
AF: NOAA/NGDC, 325 Broadway E/GC2, Boulder, CO 80305 United States
AU: Ridley, A J
EM: ridley@umich.edu
AF: University of Michigan/CSEM, 1517 Space Research Building The University of Michigan, Ann Arbor, MI 48109 United States
AU: Redmon, R
EM: Rob.Redmon@noaa.gov
AF: University of Colorado/CIRES, University of Colorado at Boulder CIRES, Boulder, CO 80309 United States
AB: We have prepared an 11 year record of the high-latitude ionospheric environment using the AMIE data assimilation technique driven primarily by ground magnetometers. Using this data set we examine the difference in the response of the high-latitude ionosphere to similar input events as identified by IMF Bz, By, V, and density profiles. We look at the effect of the phase of the solar cycle, season, and other long time scale variations. We present the results as identified modes of the ionosphere and discuss the evolution from one to another over the scale of a solar cycle.
DE: 2435 Ionospheric disturbances
DE: 2447 Modeling and forecasting
DE: 2475 Polar cap ionosphere
SC: SPA-Magnetospheric Physics [SM]
MN: 2005 Joint Assembly