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S. Zou, A. Ridley, X. Jia, E. Boyd, M. Nicolls, A. Coster, E. Thomas, and J. M. Ruohoniemi. PFISR observation of intense ion upflow fluxes associated with an SED during the 1 June 2013 geomagnetic storm. J. Geophys. Res. Space Physics, American Geophysical Union, issue 122,  2017 .

L. R. Lyons, B. Gallardo-Lacourt, S. Zou, J. M. Weygand, Y. Nishimura, W. Li, M. Gkioulidou, V. Angelopoulos, E. F. Donovan, J. M. Ruohoniemi, B. J. Anderson, S. G. Shepherd, and N. Nishitani. The 17 March 2013 storm: Synergy of observations related to electric field modes and their ionospheric and magnetospheric Effects. J. Geophys. Res. Space Physics, American Geophysical Union, issue 121,  2016 .

C. R. Clauer, Z. Xu, M. Maimaiti, J. M. Ruohoniemi, W. Scales, M. D. Hartinger, M. J. Nicolls, S. Kaeppler, F. D. Wilder, and R. E. Lopez. Investigation of a rare event where the polar ionospheric reverse convection potential does not saturate during a period of extreme northward IMF solar wind driving. J. Geophys. Res. Space Physics, volume 121,  2016 .

L. R. Lyons, Y. Nishimura, B. Gallardo-Lacourt, M. J. Nicolls, S. Chen, D. L. Hampton, W. A. Bristow, J. M. Ruohoniemi, N. Nishitani, E. F. Donovan, and V. Angelopoulos. Azimuthal flow bursts in the Inner Plasma Sheet and Possible Connection with SAPS and Plasma Sheet Earthward Flow Bursts. J. Geophys. Res., volume 120, pages 5009-5021,  2015 .

L. R. Lyons, Y. Nishimura, B. Gallardo-Lacourt, Y. Zou, E. F. Donovan, S. Mende, V. Angelopoulos, J. M. Ruohoniemi, K. A. McWilliams, D. L. Hampton, and M. J. Nicolls. Dynamics Related to Plasmasheet Flow Bursts as Revealed from the Aurora. Auroral Dynamics and Space Weather (eds. Y. Zhang and L. J. Paxton), John Wiley & Sons,  2015 .

P. G. Richards, M. J. Nicolls, J.-P. St.-Maurice, L. Goodwin, and J. M. Ruohoniemi. Investigation of sudden electron density depletions observed in the dusk sector by the Poker Flat, Alaska incoherent scatter radar in summer. J. Geophys. Res., volume 119, pages 10608-10620,  2014 .

S. Zou, M. B. Moldwin, A. J. Ridley, M. J. Nicolls, A. J. Coster, E. G. Thomas, and J. M. Ruohoniemi. On the generation/decay of the storm-enhanced density plumes: Role of the convection flow and field-aligned ion flow. J. Geophys. Res.,  2014 .

L. R. Lyons, Y. Nishimura, H.-J. Kim, E. Donovan, V. Angelopoulos, G. Sofko, M. Nicolls, C. Heinselman, J. M. Ruohoniemi, and N. Nishitani. Possible connection of polar cap flows to pre- and post-substorm onset PBIs and streamers. J. Geophys. Res., volume 116,  2011 .