Location and source of ionospheric high latitude troughs

Details Location and source of ionospheric high latitude troughs Location and source of ionospheric high latitude troughs

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983p%26ss...31...99g&link_type=abstract

Planetary and Space Science, vol. 31, Jan. 1983, p. 99-105.

Computer Science

28

Auroral Zones, Ionospheric Ion Density, Magnetic Disturbances, Plasma Bubbles, Polar Regions, Convection, Field Aligned Currents, Geomagnetism, Ionospheric Currents, Ionospheric Electron Density, Magnetic Variations, Magnetically Trapped Particles, Magnetosphere-Ionosphere Coupling, Magnetospheric Instability, Oxygen Ions, Polar Caps

Scientific paper

The global extent of the high-latitude troughs from altitudes between approximately 400 and 1100 km are explored using ion composition measurements from the satellite OGO 6. The trough locations are compared with prominent magnetosphere-ionosphere coupling signatures in order to understand the source and controlling mechanisms for these plasma depletions. It is found that, on the average, the troughs at all local times are in the vicinity of the auroral oval and move equatorward in response to increasing magnetic activity. The average trough location is compared with the average polar cap boundary as defined by the convection electric field reversal and the electron trapping boundary, as well as with the maximum horizontal magnetic disturbance associated with the large-scale field-aligned currents. It is concluded that the troughs are mainly the result of enhanced chemical O(+) losses in regions having high convection velocities.

Affiliated with

Also associated with

No associations

Rating

Location and source of ionospheric high latitude troughs does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Location and source of ionospheric high latitude troughs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Location and source of ionospheric high latitude troughs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1197944