Browsing Bergen Open Research Archive by Author "Ljungqvist, Fredrik Charpentier"

Now showing items 1-3 of 3

    • Assessing non-linearity in European temperature-sensitive tree-ring data 

      Ljungqvist, Fredrik Charpentier; Thejll, Peter; Björklund, Jesper; Gunnarson, Björn E.; Piermattei, Alma; Rydval, Miloš; Seftigen, Kristina; Støve, Bård; Büntgen, Ulf (Journal article; Peer reviewed, 2020-02)
      We test the application of parametric, non-parametric, and semi-parametric calibration models for reconstructing summer (June–August) temperature from a set of tree-ring width and density data on the same dendro samples ...

    • European warm-season temperature and hydroclimate since 850 CE 

      Ljungqvist, Fredrik Charpentier; Seim, Andrea; Krusic, Paul J.; Gonzalez-Rouco, Jesus Fidel; Werner, Johannes; Cook, Edward R.; Zorita, Eduardo; Luterbacher, Jürg; Xoplaki, Elena; Destouni, Georgia; Garcia-Bustamante, Elena; Aguilar, Camilo Andres Melo; Seftigen, Kristina; Wang, Jianglin; Gagen, Mary H.; Esper, Jan; Solomina, Olga; Fleitmann, Dominik; Büntgen, Ulf (Journal article; Peer reviewed, 2019)
      The long-term relationship between temperature and hydroclimate has remained uncertain due to the short length of instrumental measurements and inconsistent results from climate model simulations. This lack of understanding ...

    • Spatio-temporal variability of Arctic summer temperatures over the past 2 millennia 

      Werner, Johannes; Divine, Dmitry V; Ljungqvist, Fredrik Charpentier; Nilsen, Tine; Francus, Pierre (Peer reviewed; Journal article, 2018-04-24)
      In this article, the first spatially resolved and millennium-length summer (June–August) temperature reconstruction over the Arctic and sub-Arctic domain (north of 60°N) is presented. It is based on a set of 44 annually ...