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Dayside Aurora


Dayside aurora is related to processes in the dayside magnetosphere and especially at the dayside magnetopause. A number of dayside aurora phenomena are driven by reconnection between the solar wind interplanetary magnetic field and the Earth’s internal magnetic field at the magnetopause. We summarize the properties and origin of aurora at the cusp foot point, High Latitude Dayside Aurora (HiLDA), Poleward Moving Auroral Forms (PMAFs), aurora related to traveling convection vortices (TCV), and throat aurora. Furthermore we discuss dayside diffuse aurora, morning side diffuse aurora spots, and shock aurora.

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HUF was supported by NSF award AGS-1004736 and NASA’s Explorers Program through contracts NNG12FA45C and NNG12FA42I. The work of D. Han is supported by the National Key R & D Program of China (2018YFC1407303) and National Natural Science Foundation of China (NSFC) (41774174). SEM was supported by the Science and Technology Facilities Council (STFC), UK, grant no. ST/N000749/1. The work at the Birkeland Centre for Space Centre, University of Bergen, Norway, was supported by the Research Council of Norway/CoE under contract 223252/F50.

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Correspondence to Harald U. Frey.

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Auroral Physics

Edited by David Knudsen, Joe Borovsky, Tomas Karlsson, Ryuho Kataoka and Noora Partmies

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Frey, H.U., Han, D., Kataoka, R. et al. Dayside Aurora. Space Sci Rev 215, 51 (2019).

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  • Auroral phenomena
  • Dayside aurora
  • Cusp
  • Magnetic reconnection
  • MI-coupling
  • Energetic particles
  • Field-aligned currents and current systems
  • Energetic particle precipitation