Browsing Institutt for informatikk by Author "Eggen, Mari Dahl"

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  • Estimating stratospheric polar vortex strength using ambient ocean-generated infrasound and stochastics-based machine learning 
    Vorobeva, Ekaterina; Eggen, Mari Dahl; Midtfjord, Alise Danielle; Benth, Fred Espen; Hupe, Patrick; Brissaud, Quentin; Orsolini, Yvan Joseph Georges Emile G.; Näsholm, Sven Peter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    There are sparse opportunities for direct measurement of upper stratospheric winds, yet improving their representation in subseasonal-to-seasonal prediction models can have significant benefits. There is solid evidence ...
  • Stochastic Modeling of Stratospheric Temperature 
    Eggen, Mari Dahl; Dahl, Kristina Rognlien; Näsholm, Sven Peter; Mæland, Steffen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    This study suggests a stochastic model for time series of daily zonal (circumpolar) mean stratospheric temperature at a given pressure level. It can be seen as an extension of previous studies which have developed stochastic ...