Antarctic SuperDARN Observations of Medium Scale Traveling Ionospheric Disturbances

TitleAntarctic SuperDARN Observations of Medium Scale Traveling Ionospheric Disturbances
Publication TypeConference Paper
Year of Publication2021
AuthorsTholley, F, Frissell, NA, Baker, JBH, J. Ruohoniemi, M, Bristow, W
Conference NameNSF CEDAR (Coupling, Energetics, and Dynamics of Atmospheric Regions)
Date Published06/2021
Conference LocationVirtual

Medium Scale Traveling Ionospheric Disturbances (MSTIDs) are quasi-periodic variations of the F-region ionosphere with periods of 15 to 60 minutes and horizontal wavelengths of a few hundred kilometers. MSTIDs are typically associated with atmospheric gravity waves (AGWs). Statistical studies of MSTIDs using Super Dual Auroral Radar Network (SuperDARN) radars in the Northern Hemisphere have shown strong correlation with Polar Vortex activity, while a study of MSTIDs using the Antarctic Falkland Islands SuperDARN radar showed populations of MSTIDs with signatures suggestive of both solar wind‐magnetosphere coupling sources and lower neutral atmospheric winds sources. The sources of the MSTIDs are still not well understood, and there are limited studies of MSTIDs using SuperDARN radars in the Southern Hemisphere. We present initial results of MSTID observations of using Antarctic SuperDARN radars, including the radar at McMurdo Station.

Refereed DesignationNon-Refereed
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