SuperDARN observations of daytime MSTIDs in the auroral and mid-latitudes: Possibility of long-distance propagation

Details SuperDARN observations of daytime MSTIDs in the auroral and mid-latitudes: Possibility of long-distance propagation SuperDARN observations of daytime MSTIDs in the auroral and mid-latitudes: Possibility of long-distance propagation

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3513102i&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 13, CiteID L13102

Physics

4

Atmospheric Processes: Acoustic-Gravity Waves, Ionosphere: Ionospheric Disturbances, Ionosphere: Ionosphere/Atmosphere Interactions (0335), Ionosphere: Auroral Ionosphere (2704), Ionosphere: Midlatitude Ionosphere

Scientific paper

The propagation parameters of daytime medium-scale traveling ionospheric disturbances (MSTIDs) are investigated for the first time using near-simultaneous SuperDARN radar data obtained at auroral and middle latitudes. The observations suggest that MSTIDs can propagate from auroral to mid-latitudes with persistent propagation parameters if the dominant propagation direction is approximately equatorward. However, statistical analysis implies that a portion of MSTIDs with higher horizontal phase velocity are unable to reach the mid-latitude due to enhanced dissipation and the reduction of the ion-drag effect.

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