Dayside auroras during storms of April 2002: TIMED/GUVI observations

Details Dayside auroras during storms of April 2002: TIMED/GUVI observations Dayside auroras during storms of April 2002: TIMED/GUVI observations

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa21b0448z&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SA21B-0448

Physics

2704 Auroral Phenomena (2407), 2716 Energetic Particles, Precipitating, 2736 Magnetosphere/Ionosphere Interactions, 2784 Solar Wind/Magnetosphere Interactions, 2788 Storms And Substorms

Scientific paper

During the major magnetic storms on April 17-20, 2002, TIMED/GUVI observed a new feature of dayside auroras: a separated diffused auroral oval at magnetic latitudes below 70 degrees. Such auroral feature was very dynamic and did not exist all the time. Energetic electrons/protons drifting from the night side magnetosphere may be the source of the auroras. We will discuss the IMF and magnetospheric conditions for the auroras to occur.

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