SuperDARN observations of daytime MSTIDs in the auroral and mid‐latitudes: Possibility of long‐distance propagation
2008; American Geophysical Union; Volume: 35; Issue: 13 Linguagem: Inglês
10.1029/2008gl034623
ISSN1944-8007
AutoresTakayuki Ishida, Keisuke Hosokawa, Takashi Shibata, Shin Suzuki, Н. Нишитани, T. Ogawa,
Tópico(s)Earthquake Detection and Analysis
ResumoThe 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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