Search for dissertations about: "Torbjörn Sundberg"

Found 2 swedish dissertations containing the words Torbjörn Sundberg.

2. 1. New Perspectives on Solar Wind-Magnetosphere Coupling

   Author : Torbjörn Sundberg; Lars Blomberg; Judy Cumnock; Masaki Fujimoto; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; magnetosphere; ionosphere; mercury; kelvin-helmholtz; Electrophysics; Elektrofysik;

   Abstract : The streaming plasma in the solar wind is a never ending source of energy, plasma, and momentum for planetary magnetospheres, and it continuously drives large-scale plasma convection systems in our magnetosphere and over our polar ionosphere. This coupling between the solar wind and the magnetosphere is primarily explained by two different processes: magnetic reconnection at high latitudes, which interconnects the interplanetary magnetic field (IMF) with the planetary dipole field, and low-latitude dynamos such as viscous interaction, where the streaming plasma in the solar wind may trigger waves and instabilities at the flanks of the magnetosphere, and thereby allow solar wind plasma to enter into the system. READ MORE

4. 2. On the Properties of Ionospheric Convection

   Author : Torbjörn Sundberg; Lars Blomberg; Judy Cumnock; Mike Lockwood; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrophysics; Elektrofysik;

   Abstract : The solar wind interaction with the magnetosphere-ionosphere system continuously drives plasma convection in the polar regions of the ionosphere. The flow velocity and the shape of the convection pattern are closely dependent on the interplanetary conditions, in particular the direction of the interplanetary magnetic field (IMF). READ MORE