Investigating the polar electrojet using Swarm satellite magnetic data

Cecilie Drost Aakjær, Nils Olsen, Chris Finlay

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review


    The aim of this study is to investigate the magnetic perturbations caused by the polar electrojets, which are described by means of a model consisting of a series of infinite line currents placed at the height of the ionosphere along QD latitudes. The method is applied to Swarm magnetic scalar perturbations (which means observations after removal of contributions from the core, crust and the large-scale magnetosphere) in the Polar Regions (+/- 50 degrees from the poles) for individual satellite passes. The obtained estimates of ionospheric currents provide information on the position and strength of the polar electrojets as well as their temporal evolution. In addition, applying the method to data taken by the Swarm satellites Alpha and Beta allows investigating longitudinal differences of the electrojets.
    Original languageEnglish
    Publication date2016
    Number of pages1
    Publication statusPublished - 2016
    EventESA Living Planet Symposium 2016 - Prague, Czech Republic
    Duration: 9 May 201613 May 2016


    ConferenceESA Living Planet Symposium 2016
    Country/TerritoryCzech Republic
    Internet address


    Dive into the research topics of 'Investigating the polar electrojet using Swarm satellite magnetic data'. Together they form a unique fingerprint.

    Cite this