Observation of the Dayside Cusp With IMAGE, Cluster, and DMSP

Details Observation of the Dayside Cusp With IMAGE, Cluster, and DMSP Observation of the Dayside Cusp With IMAGE, Cluster, and DMSP

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsm22a..06s&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SM22A-06

Physics

Plasma Physics

2700 Magnetospheric Physics, 2704 Auroral Phenomena (2407), 7800 Space Plasma Physics

Scientific paper

The IMAGE, Cluster, and DMSP spacecraft are used to investigate the cusp during an extended interval of IMF north on March 20-21 of 2002. Continuous monitoring by the IMAGE Far Ultraviolet spectrographic imager within the ~5 hour interval shows the dayside IMF-north emission region or spot, transpolar arcs, and evidence of a small substorm. Within the study interval the Cluster and DMSP F-13 field lines map down to the dayside spot. We are thus able to make a direct comparison between the particle measurements at Cluster and the cusp FUV emissions as well as determine the convective flow patterns at low altitudes. We relate the cusp characteristics to the rest of the oval and subsequently to the magnetosphere. The appearance and fading of the transpolar arcs provide information on changes in the magnetospheric configuration, which are then related to changes in the solar wind plasma and field characteristics.

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