Showing 1 - 2 results of 2 for search 'M. G. Johnsen', query time: 0.01s Refine Results
  1. 1
    A critical review and presentation of the complete, historic series of <i>K</i> indices as determined at Norwegian magnetic observatories since 1939

    A critical review and presentation of the complete, historic series of <i>K</i> indices as determined at Norwegian magnetic observatories since 1939 by I. Frøystein, I. Frøystein, M. G. Johnsen

    Published 2025-05-01
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  2. 2
    Leaping and vortex motion of the shock aurora toward the late evening sector observed on 26 February 2023

    Leaping and vortex motion of the shock aurora toward the late evening sector observed on 26 February 2023 by S. Nanjo, M. Yamauchi, M. G. Johnsen, Y. Yokoyama, U. Brändström, Y. Ogawa, A. N. Willer, K. Hosokawa

    Published 2025-06-01
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