Ionospheric space weather effects monitored by simultaneous ground and space based GNSS signals |
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| Institution: | 1. German Aerospace Centre (DLR), Institute of Communications and Navigation, Kollchorstweg 53, D-17235 Neustrelitz, Germany;2. GeoForschungsZentrum Potsdam (GFZ), D-14473 Potsdam, Germany;1. CCLRC Rutherford Appleton Laboratory, Chilton, U.K.;2. Istituto Nazionale di Geofisica 00143 Rome, Italy;1. Mechanics of Materials, Department of Mechanical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands;2. Marcus Wallenberg Laboratory, Department of Aeronautical and Vehicle Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden;1. Lodz University of Technology, Department of Molecular Physics, Faculty of Chemistry, Zeromskiego 116, 90-924 Lodz, Poland;2. Department of Macromolecular Physics, Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznan, Poland;3. NanoBioMedical Centre, Adam Mickiewicz University, Umultowska 85, 61-614 Poznan, Poland;1. London School of Economics, Department of Mathematics, Houghton Street, London WC2A 2AE, United Kingdom;2. University of Michigan, Department of Mathematics, 530 Church Street, Ann Arbor, MI 48109, United States |
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| Abstract: | Ionospheric space weather effects can degrade the performance of global navigation satellite systems (GNSS), i.e. their accuracy, reliability and availability. However, well established ground based and innovative space based GNSS measurements offer the unique chance for a permanent monitoring of the electron density structure of the global ionosphere–plasmasphere system. In this paper we review various types of perturbations in the ionospheric plasma density and distribution. In order to analyze these space weather effects we use 30 s sampled measurements provided by the global GPS ground tracking network of the IGS. Furthermore, to get a more comprehensive view on the perturbations analyzed also are simultaneously obtained GPS measurements onboard the LEO satellite CHAMP (challenging minisatellite payload). Whereas the ground based measurements show strong horizontal redistribution of plasma during ionospheric storms, the space-borne measurements indicate a severe vertical redistribution of the ionospheric plasma during the selected events. The role of the various dynamical forces such as meridional winds and electric fields is also discussed. |
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