HR: 1050h
AN: SM22B-03 INVITED    [Abstracts]
TI: Magnetospheric Cusp During Northward and Southward IMF
AU: * Onsager, T G
EM: terry.onsager@noaa.gov
AF: NOAA Space Weather Prediction Center, 325 Broadway, Boulder, CO 80305, United States
AB: The magnetospheric cusp is a region with direct connection to the dayside magnetopause and the ionosphere. Measurements of the particles and fields in this region contain a wealth of information about dayside reconnection as it drives the magnetosphere and about the ionospheric response. This presentation will outline the key observational signatures in the cusp and their association with the location of magnetic reconnection, its rate, and the plasma properties in the magnetosheath. The entry of magnetosheath plasma into the cusp and the subsequent distribution of magnetosheath and ionospheric plasma throughout the magnetosphere will also be described. Particular emphasis will be given to the distinction between the cusp under northward and southward IMF conditions and the signatures resulting from a temporally varying reconnection rate.
DE: 2706 Cusp
DE: 2724 Magnetopause and boundary layers
DE: 2736 Magnetosphere/ionosphere interactions (2431)
DE: 2784 Solar wind/magnetosphere interactions
SC: SPA-Magnetospheric Physics [SM]
MN: 2007 Fall Meeting