IMF control of small-scale Alfvén wave activity in the magnetosphere-ionosphere transition region: FAST observations

Spencer Hatch, University of Bergen, Department of Physics and Technology, Bergen, Norway, James W Labelle, Dartmouth College, Department of Physics & Astronomy, Hanover, United States, Binzheng Zhang, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, William Lotko, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States; National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States and Christopher Carew Chaston, University of California Berkeley, Space Sciences Laboratory, Berkeley, United States; University of Sydney, School of Physics, Sydney, Australia