• Do the Throat Auroras Create Polar Cap Patches? 

      Zhang, Duan; Zhang, Qing-He; Oksavik, Kjellmar; Xu, Tong; Xing, Zan-Yang; Lyons, L.R.; Han, De-Sheng; Zhang, Hong-Bo; Ma, Yu-Zhang; Hu, Ze-Jun; Liu, Jian-Jun; Wang, Yong; Wang, Xiang-Yu (Journal article; Peer reviewed, 2023)
      Throat auroras and polar cap patches are common phenomena in the polar ionosphere resulting from magnetosphere-ionosphere coupling. A campaign was organized, with all-sky imagers at Yellow River Station, the European ...
    • Multiple transpolar auroral arcs reveal insight about coupling processes in the Earth’s magnetotail 

      Zhang, Qing-He; Zhang, Yong-Liang; Wang, Chi; Lockwood, Michael; Yang, Hui-Gen; Tang, Bin-Bin; Xing, Zan-Yang; Oksavik, Kjellmar; Lyons, Larry R.; Ma, Yu-Zhang; Zong, Qiu-Gang; Moen, Jøran Idar; Xia, Li-Dong (Journal article; Peer reviewed, 2020)
      A distinct class of aurora, called transpolar auroral arc (TPA) (in some cases called “theta” aurora), appears in the extremely high-latitude ionosphere of the Earth when interplanetary magnetic field (IMF) is northward. ...
    • A space hurricane over the Earth’s polar ionosphere 

      Zhang, Qing-He; Zhang, Yong-Liang; Wang, Chi; Oksavik, Kjellmar; Lyons, Larry R.; Lockwood, Michael; Yang, Hui-Gen; Tang, Bin-Bin; Moen, Jøran Idar; Xing, Zan-Yang; Ma, Yu-Zhang; Wang, Xiang-Yu; Ning, Ya-Fei; Xia, Li-Dong (Journal article; Peer reviewed, 2021)
      In Earth’s low atmosphere, hurricanes are destructive due to their great size, strong spiral winds with shears, and intense rain/precipitation. However, disturbances resembling hurricanes have not been detected in Earth’s ...
    • Statistical Study of the Relationship Between Ion Upflow and Field-Aligned Current in the Topside Ionosphere for Both Hemispheres During Geomagnetic Disturbed and Quiet Time 

      Ma, Yu-Zhang; Zhang, Qing-He; Jayachandran, Periyadan T.; Oksavik, Kjellmar; Lyons, Lawrence R.; Xing, Zan-Yang; Zhou, Shan-Yu; Hairston, Marc; Wang, Yong (Journal article; Peer reviewed, 2020)
      A statistical study of ion upflow and field‐aligned currents (FACs) has been performed in the topside ionosphere of both hemispheres for magnetic quiet and disturbed times by using DMSP satellite observations from 2010–2013. ...
    • Unusual shrinkage and reshaping of Earth’s magnetosphere under a strong northward interplanetary magnetic field 

      Wang, Xiang-Yu; Zhang, Qing-He; Wang, Chi; Zhang, Yong-Liang; Tang, Bin-Bin; Xing, Zan-Yang; Oksavik, Kjellmar; Lyons, Larry R.; Lockwood, Michael; Zong, Qiu-Gang; Li, Guo-Jun; Liu, Jing; Ma, Yu-Zhang; Wang, Yong (Journal article; Peer reviewed, 2023)
      The Earth’s magnetosphere is the region of space where plasma behavior is dominated by the geomagnetic field. It has a long tail typically extending hundreds of Earth radii (RE) with plentiful open magnetic fluxes threading ...