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EP: Extraterrestrische Physik

EP 4: Magnetosph
ären und Plasmen

EP 4.6: Talk

Tuesday, March 19, 2002, 12:20–12:35, HS 15

Cluster EDI convection measurements in the dayside magnetosphere — •Hans Vaith¹, Götz Paschmann¹, Pamela Puhl-Quinn¹, Jack Quinn², Edita Georgescu¹, and Berndt Klecker¹ — ¹Max-Planck-Institut für extraterrestrische Physik, D-85741 Garching, Deutschland — ²Space Science Center, Morse Hall, University of New Hampshire, Durham, NH 03824, USA

The Electron Drift Instrument (EDI) on Cluster determines the plasma drift velocity by injecting two weak electron beams and measuring their displacement and time of flight after one or more gyrations in the ambient magnetic field. EDI measures the full drift velocity, including its component along the spacecraft spin axis. In this presentation we use the EDI measurements to discuss plasma convection in the magnetosphere up to the magnetopause.