Speaker
Description
Abstract
Nighttime medium-scale traveling ionospheric disturbances (MSTIDs) are wavelike plasma structures in the ionospheric F-region that can affect radio communication and space weather forecasting. These disturbances appear as dark bands in airglow images obtained from all-sky imagers (ASIs). This study investigates characteristics of MSTIDs over two conjugate ASI stations, i.e., Sutherland (32.4°S, 20.8°E; magnetic latitude: 40.7 °) and Asiago (48.87°N, 11.53°E; magnetic latitude: -40.7 °). We will present results of a few cases of MSTIDs that appear as single and double band structures moving in the Westward and northeastward directions in both hemispheres. Sporadic-E (Es) layer occurrence, derived from ionosonde measurements at nearby stations in both hemispheres, is also examined to explore its role as a generation mechanism of the observed MSTIDs. The results show clearly that there are some cases where sporadic E is absent in the presence of MSTID waves, and therefore may indicate that the sporadic E layer is not necessarily required for conjugate MSTIDs, and therefore other driving mechanisms will be explored
| Apply for student award at which level: | MSc |
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| Consent on use of personal information: Abstract Submission | Yes, I ACCEPT |