Space Weather at Mid-latitudes: Leveraging Geodetic GPS Receivers for Ionospheric Scintillation Science

Sebastijan Mrak, Joshua Semeter, Toshi Nishimura, Anthea J. Coster, Keith Groves

Abstract: We present results of the NASA Living With a Star Institute 2019: “Space Weather Impacts TEC and scintillations at MidLatitudes.” We analyzed available ground-based observations of GPS scintillation events in the context of geophysical drivers associated with ionospheric space weather. We leverage geodetic receivers with a 1-Hz temporal resolution to drive proxy scintillation indices. We discuss observability limits of the 1-Hz receivers and their utility as a space weather diagnostic. The GPS receivers cover the American longitude sector, spanning from Panama to Canada in latitudes. We surveyed 8 years of available data between 2012 and 2020 and found 9 events during which a portion of the receiver network observed amplitude scintillations at magnetic mid-latitudes. All events occurred during geomagnetic storms. The storm’s Dst ranged between -204 nT and -51 nT, with a median of -131 nT, and median Kp 7-. We discuss some individual events in more detail.
Published in: Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021)
September 20 - 24, 2021
Union Station Hotel
St. Louis, Missouri
Pages: 3910 - 3919
Cite this article: Mrak, Sebastijan, Semeter, Joshua, Nishimura, Toshi, Coster, Anthea J., Groves, Keith, "Space Weather at Mid-latitudes: Leveraging Geodetic GPS Receivers for Ionospheric Scintillation Science," Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021), St. Louis, Missouri, September 2021, pp. 3910-3919.
https://doi.org/10.33012/2021.18130
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