The dependence of high-latitude dayside ionospheric flows on the north-south component of the IMF - A high time resolution correlation analysis using EISCAT 'Polar' and AMPTE UKS and IRM data

Details The dependence of high-latitude dayside ionospheric flows on the north-south component of the IMF - A high time resolution correlation analysis using EISCAT 'Polar' and AMPTE UKS and IRM data The dependence of high-latitude dayside ionospheric flows on the north-south component of the IMF - A high time resolution correlation analysis using EISCAT 'Polar' and AMPTE UKS and IRM data

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988p%26ss...36..471e&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 36, May 1988, p. 471-498.

Computer Science

104

Bow Waves, Earth Ionosphere, Earth Magnetosphere, Interplanetary Magnetic Fields, Polar Regions, Solar Wind, Ampte (Satellites), Correlation, Eiscat Radar System (Europe), Uk Satellites

Scientific paper

Solar wind and IMF observations obtained upstream from the earth's bow shock by the AMPTE UKS and IRM spacecraft have been analyzed along with EISCAT dayside ionospheric flow data in order to study the relationship between the ionospheric flow and the Bz component of the IMF. The form of this relationship is found to depend strongly on latitude and local time, and these dependencies are interpreted in terms of a twin-vortex flow pattern in which the magnitude and latitudinal extent of the flows become successively larger as Bz becomes successively more negative. The ionospheric response time to changes in IMF Bz is found to be very rapid.

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