Electric fields in the ionosphere and magnetosphere

✍ Scribed by R. A. Greenwald

• Publisher: Springer Netherlands
• Year: 1983
• Tongue: English
• Weight: 642 KB
• Volume: 34
• Category: Article
• ISSN: 0038-6308
• DOI: 10.1007/bf00175285

✦ Synopsis

In this paper we review low altitude observations of the high latitude convection electric field as obtained with a variety of instruments including polar orbiting spacecraft, barium, incoherent and coherent scatter radars, and ground-based magnetometers. There still appears to be some contradiction in the observations particularly with regard to plasma flow into and out of the polar cap. Also, there does not appear to be any simple relationship between the sign of By and the local time location of the throat region. Rather, under active conditions, it appears that the plasma entry and exit regions rotate towards earlier times and there is a significant component of dawn-dusk flow across the polar cap. Superimposed on this may be some By-dependence of the plasma entry region.