Articles | Volume 40, issue 5
Regular paper
28 Sep 2022
Regular paper |  | 28 Sep 2022

Mid-latitude neutral wind responses to sub-auroral polarization streams

Daniel D. Billett, Kathryn A. McWilliams, Robert B. Kerr, Jonathan J. Makela, Alex T. Chartier, J. Michael Ruohoniemi, Sudha Kapali, Mike A. Migliozzi, and Juanita Riccobono

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Cited articles

Aa, E., Zhang, S.-R., Erickson, P. J., Coster, A. J., Goncharenko, L. P., Varney, R. H., and Eastes, R.: Salient Midlatitude Ionosphere-Thermosphere Disturbances Associated With SAPS During a Minor but Geo-Effective Storm at Deep Solar Minimum, J. Geophys. Res.-Space, 126, e2021JA029509,, 2021. a
Anderson, P. C., Carpenter, D. L., Tsuruda, K., Mukai, T., and Rich, F. J.: Multisatellite observations of rapid subauroral ion drifts (SAID), J. Geophys. Res.-Space, 106, 29585–29599, 2001. a
Airglow: Calendar,, last access: 23 September 2022. a
Billett, D. D. and McWilliams, K. A.: The SuperDARN's role in ion-neutral coupling research, Polar Sci., 28, 100624,, 2021. a
Billett, D. D., Wild, J. A., Grocott, A., Aruliah, A. L., Ronksley, A. M., Walach, M.-T., and Lester, M.: Spatially resolved neutral wind response times during high geomagnetic activity above Svalbard, J. Geophys. Res.-Space, 124, 6950–6960, 2019. a
Short summary
Sub-auroral polarisation streams (SAPSs) are very fast plasma flows that occur at mid-latitudes, which can affect the atmosphere. In this paper, we use four ground-based radars to obtain a wide coverage of SAPSs that occurred over the USA, along with interferometer cameras in Virginia and Massachusetts to measure winds. The winds are strongly affected but in different ways, implying that the balance forces on the atmosphere is strongly dependent on proximity to the disturbance.