Sökning: "Martin Waara"

Hittade 1 avhandling innehållade orden Martin Waara.

  1. 1. High altitude ion heating observed by the Cluster spacecraft

    Författare :Martin Waara; Hans Nilsson; Kristina Lynch; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Space physics; Rymdfysik; rymd- och plasmafysik; Space and Plasma Physics;

    Sammanfattning : This thesis deals with heating of outowing oxygen ions at high altitude above the polar cap using data from the Cluster spacecraft. oInospheric plasma may flow up from the ionosphere but at velocities which are low enough that the ions are still gravitationally bound. For the ions to overcome gravity, further acceleration is needed. LÄS MER