EDI STORMTIME ELECTRIC FIELDS

R.B.Torbert(1), , G. Paschmann (2), J. Quinn(1), G. Haerendel (2), H. Vaith (2), M.

Foerster(2), E. Georgescu(2),C. McIlwain (3), S.S. Kerr(3),W.Fillius(3), C. Kletzing (4),

B. Briggs (1), H. Matsui(1)

(1) University of New Hampshire, (2) Max-Planck-Institut f. extraterrestrische Physik, (3)

University of California, San Diego, (4) University of Iowa

roy.torbert@unh.edu

Enhanced electric fields, associated with an increase in convection, have long been a

recognizable feature of storms and substorms in the magnetosphere. We will show new

data, from the Electron Drift Instrument on the CLUSTER-II spacecraft, of electric field

signatures associated with these events in the post-midnight region of the

magnetosphere