Driving of Dramatic Geomagnetic Activity by Enhancement of Meso-Scale Polar-cap Flows

Larry R Lyons, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Bea Gallardo-Lacourt, University of California Los Angeles, Los Angeles, United States, Ying Zou, The University of Alabama in Huntsville, Huntsville, United States, Yukitoshi Nishimura, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, United States, Phillip Charles Anderson, University of Texas at Dallas, W. B. Hanson Center for Space Sciences, Richardson, TX, United States, Vassilis Angelopoulos, UCLA, Department of Earth, Planetary, and Space Sciences and Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States, J. Michael Ruohoniemi, Virginia Polytechnic Institute and State University, Blacksburg, United States, Elizabeth J Mitchell, Applied Physics Laboratory Johns Hopkins, SRG, Laurel, MD, United States, Larry J Paxton, Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States and Nozomu Nishitani, Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan