Blar i Bergen Open Research Archive på forfatter "Frey, Harald U."

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    • Simultaneous Development of Multiple Auroral Substorms: Double Auroral Bulge Formation 

      Ohtani, S.; Gjerløv, Jesper; McWilliams, Kathryn A.; Ruohoniemi, J. M.; Frey, Harald U. (Journal article; Peer reviewed, 2021)
      The expansion phase of auroral substorms is characterized by the formation of an auroral bulge, and it is generally considered that a single bulge forms following each substorm onset. However, we find that occasionally two ...