Browsing Bergen Open Research Archive by Author "Freeman, MP"
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Interplanetary Magnetic Field Control of Polar Ionospheric Equivalent Current System Modes
Shore, R.M; Freeman, MP; Gjerløv, Jesper (Peer reviewed; Journal article, 2019)We analyze the response of different ionospheric equivalent current modes to variations in the interplanetary magnetic field (IMF) components By and Bz. Each mode comprises a fixed spatial pattern whose amplitude varies ... -
Spatial Variation in the Responses of the Surface External and Induced Magnetic Field to the Solar Wind
Shore, R.M; Freeman, MP; Coxon, John C.; Thomas, EG; Gjerløv, Jesper; Olsen, N. (Peer reviewed; Journal article, 2019-07-05)We analyze the spatial variation in the response of the surface geomagnetic field (or the equivalent ionospheric current) to variations in the solar wind. Specifically, we regress a reanalysis of surface external and induced ...