Ionosphere response to solar wind high-speed streams

We present 9- and 7-day periodic oscillations in the global mean Total Electron Content (TEC) from 1 January 2005 to 31 December 2006. Spectral analysis indicates that the pronounced periodicities of 9 and 7 days observed in TEC are associated with variations in solar wind high-speed streams and geomagnetic activity. Neutral temperature and winds near 250 km, measured by a Fabry-Perot Interferometer at Resolute Bay, also exhibit 9- and 7-day periodicities. These pronounced periodicities support simultaneous observations of 9- and 7-day periodicities in thermosphere neutral density (Lei et al., 2008a; Thayer et al., 2008). It is anticipated that the ionospheric response at 9 and 7 days represents some combination of effects due to chemical loss, neutral winds, and disturbance dynamo-driven electric fields.

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An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union.
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Author Lei, J.
Thayer, J.
Forbes, J.
Wu, Qian
She, C.
Wan, W.
Wang, Wenbin
Publisher UCAR/NCAR - Library
Publication Date 2008-10-08T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2025-07-17T15:55:43.565814
Metadata Record Identifier edu.ucar.opensky::articles:6549
Metadata Language eng; USA
Suggested Citation Lei, J., Thayer, J., Forbes, J., Wu, Qian, She, C., Wan, W., Wang, Wenbin. (2008). Ionosphere response to solar wind high-speed streams. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d76m371p. Accessed 11 August 2025.

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