Spatial and Temporal Variations in the Ionosphere Associated With Coupling to the Magnetosphere: Investigations Enabled by NPOESS.

Details Spatial and Temporal Variations in the Ionosphere Associated With Coupling to the Magnetosphere: Investigations Enabled by NPOESS. Spatial and Temporal Variations in the Ionosphere Associated With Coupling to the Magnetosphere: Investigations Enabled by NPOESS.

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsm43b1231c&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SM43B-1231

Statistics

Computation

2431 Ionosphere/Magnetosphere Interactions (2736), 2437 Ionospheric Dynamics, 2467 Plasma Temperature And Density

Scientific paper

The NPOESS will provide polar orbiting satellites in sun-synchronous orbits that operate continuously. Thus they provide information about longitude variations at all altitudes every day. When longitude variations are established, the temporal evolution of large-scale features can be examined with a resolution equal to the orbit period. Continuous operation also allows variations with solar rotation, solar cycle and season to be established. There remain many unanswered questions about spatial and temporal variations in the topside ionosphere produced by ionosphere-magnetosphere coupling. Here we use data from the present DMSP satellites to describe storm time variations in ionospheric composition, temperature and velocity from the pole to the equator. These data clearly set forth the challenges for future investigations. We expect data from NPOESS taken while studies of magnetospheric dynamics and the interplanetary medium are also taking place will allow a more rigorous understanding of magnetosphere ionosphere coupling and the incorporation of this understanding into computational models.

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