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[1] We derive Northern Hemispheric auroral brightness patterns using images from Polar Ultraviolet Imager Lyman-Birge-Hopfield long band emissions ( 170.0 nm). Pixels of these images are binned by the X and Y components of the interplanetary magnetic field (IMF) under the combinations of two seasonal (summer and winter) and two IMF Bz (northward and(More)
[1] In this study we determine relationships between auroral brightness and each of the solar wind density and velocity under normal interplanetary magnetic field (IMF) conditions using Polar Lyman-Birge-Hopfield long band ( 170.0 nm) images and Interplanetary Monitoring Platform 8 solar wind data. Since IMF and season are parameters that can affect the(More)
The present work has investigated the midlatitudinal magnetopause locations under radial interplanetary field (RIMF) conditions. Among 262 (256) earthward (sunward) RIMF events from years of 2001 to 2009, Cluster satellites have crossed the magnetopause 22(12) times, with 10 (7) events occurring at midlatitudes. The observed midlatitudinal magnetopause(More)
[1] In this study we quantitatively investigate auroral power rate of change during periods of plasma sheet fast flows. We first identify plasma sheet fast flows from Geotail plasma and magnetic field data and then estimate the rate of change in integrated auroral power over the nightside auroral region using Polar Ultraviolet Imager auroral images over the(More)
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