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  1. No Access

    Article

    Ionospheric Signatures Of Bursty Bulk Flows

    While the plasma convection in the Earth's magnetosphere was for a long timeconsidered to consist mostly of laminar flows with wide spatial extents, about adecade ago the phenomenon of bursty bulk flows (BBFs)...

    O. Amm, K. Kauristie in Surveys in Geophysics (2002)

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    Article

    Characteristics of a stable are based on FAST and MIRACLE observations

    A stable evening sector are is studied using observations from the FAST satellite at 1250 km altitude and the MIRACLE ground-based network, which contains all-sky cameras, coherent radars (STARE), and magnetom...

    P. Janhunen, A. Olsson, O. Amm, K. Kauristie in Annales Geophysicae (2000)

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    Article

    Auroral precipitation fading before and at substorm onset: ionospheric and geostationary signatures

    Rapid fading of auroral activity a few minutes before substorm breakup has earlier been analyzed in case-studies. Here we report on a study in which all-sky camera (ASC) and magnetic data over 3 years were exa...

    K. Kauristie, T. I. Pulkkinen, A. Huuskonen, R. J. Pellinen… in Annales Geophysicae (1997)

  4. No Access

    Article

    What can we tell about global auroral-electrojet activity from a single meridional magnetometer chain?

    The AE indices are generally used for monitoring the level of magnetic activity in the auroral oval region. In some cases, however, the oval is either so expanded or contracted that the latitudinal coverage of th...

    K. Kauristie, T. I. Pulkkinen, R. J. Pellinen, H. J. Opgenoorth in Annales Geophysicae (1997)