Plasma Transport through the Dayside Cleft: A Source of Ionization Patches in the Polar Cap.

摘要

Rapid sunward convection from the post-noon ionosphere carries high-density solar-produced F region plasma through the dayside cleft and into the polar cap. This plasma is swept through the noontime cleft and enters the polar cap as a tongue of ionization which delineates the convection trajectory and its dynamics and provides the source for enhanced F region plasmas and their effects which are observed at high polar latitudes away from noon. Keywords: Ionosphere; Radar; Convection; Reprints. (jhd)