Multipoint Observations of Magnetic Impulse Events in Both Polar Hemispheres

Details Multipoint Observations of Magnetic Impulse Events in Both Polar Hemispheres Multipoint Observations of Magnetic Impulse Events in Both Polar Hemispheres

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sm32a11k&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SM32A-11

Other

2724 Magnetopause, Cusp, And Boundary Layers, 2784 Solar Wind/Magnetosphere Interactions

Scientific paper

We combine observations from 8 satellites and more than 50 ground magnetometers to study a series of impulsive ground magnetometer events that originated in response to sudden solar wind plasma and interplanetary magnetic field variations on an otherwise quiet day. We demonstrate that the events were global and conjugate. We use very high time resolution geosynchronous magnetometer data to determine the origin, velocity, and direction of propagation of the transient events in the magnetosphere. We show that the transient events propagated untisunward but that the IMF orientation controlled the direction of their propagation near local noon. Generation mechanisms for MIEs are discussed.

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