CLUSTER OBSERVATIONS RELATED TO POSTNOON AURORAL ARCS
J. Moen (1), J. A. Holtet (1), A. Pedersen (1), B. Lybekk (1), K. Oksavik (2), N.
Østgaard (1), and G. Gustafsson (3)
(1) Department of Physics, University of Oslo, (2) Department of Physics,
University of Bergen, (3) IRFU, Sweden
During the first winter of operation CLUSTER traversed a variety of post-noon and
post-midnight auroral activities above Svalbard. A survey will be given on the
conjunctions potentially good for further investigation. Emphasis will be laid on
preliminary results from the electric-field wave experiment in association with
postnoon discrete auroral arcs and their location relative to the convection reversal.
Boundary layer sources and wave penomena related to the region 1 and region 2
current systems will be discussed.