Blar i forfatter "Bergstedt, Helena"

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    • The Permafrost Young Researchers Network (PYRN) is getting older – the past, present, and future of our evolving community 

      Tanski, George; Bergstedt, Helena; Bevington, Alexandre; Bonnaventure, Philip; Bouchard, Frédéric; Coch, Caroline; Dumais, Simon; Evgrafova, Alvetina; Frauenfeld, Oliver; Frederick, Jennifer; Fritz, Michael; Frolov, Denis; Harder, Silvie; Hartmeyer, Ingo; Heslop, Joanne; Högström, Elin; Johansson, Margareta; Kraev, Gleb; Kuznetsova, Elena; Lenz, Josefine; Lupachev, Alexey; Magnin, Florence; Martens, Jannik; Maslakov, Alexey; Morgenstern, Anne; Nieuwendam, Alexandre; Oliva, Marc; Radosavljevic, Boris; Ramage, Justine; Schneider, Andrea; Stanilovskaya, Julia; Strauss, Jens; Trochim, Erin; Vecellio, Daniel; Weber, Samuel; Lantuit, Hugues (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-07)
      A lasting legacy of the International Polar Year (IPY) 2007–2008 was the promotion of the Permafrost Young Researchers Network (PYRN), initially an IPY outreach and education activity by the International Permafrost Association (IPA). With the momentum of IPY, PYRN developed into a thriving network that still connects young permafrost scientists, engineers, and researchers from other disciplines. ...

    • Towards long-term records of rain-on-snow events across the Arctic from satellite data 

      Bartsch, Annett; Bergstedt, Helena; Pointner, Georg; Muri, Xaver; Rautiainen, Kimmo; Leppänen, Leena; Joly, Kyle; Sokolov, Aleksandr; Orekhov, Pavel; Ehrich, Dorothee; Soininen, Eeva M (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-21)
      Rain-on-snow (ROS) events occur across many regions of the terrestrial Arctic in mid-winter. Snowpack properties are changing, and in extreme cases ice layers form which affect wildlife, vegetation and soils beyond the duration of the event. Specifically, satellite microwave observations have been shown to provide insight into known events. Only Ku-band radar (scatterometer) has been applied so ...