Blar i forfatter "Francis, Jennifer A."

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    • Effects of the tropospheric large-scale circulation on European winter temperatures during the period of amplified Arctic warming 

      Vihma, Timo; Graversen, Rune; Chen, Linling; Handorf, Dörthe; Skific, Natasa; Francis, Jennifer A.; Tyrrell, Nicholas; Hall, Richard; Hanna, Edward; Uotila, Petteri; Dethloff, Klaus; Karpechko, Alexey Yu.; Björnsson, Halldór; Overland, James E. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-08)
      We investigate factors influencing European winter (DJFM) air temperatures for the period 1979–2015 with the focus on changes during the recent period of rapid Arctic warming (1998–2015). We employ meteorological reanalyses analysed with a combination of correlation analysis, two pattern clustering techniques, and backtrajectory airmass identification. In all five selected European regions, severe ...

    • Summers with low Arctic sea ice linked to persistence of spring atmospheric circulation patterns 

      Kapsch, Marie-Luise; Skific, Natasa; Graversen, Rune; Tjernström, Michael; Francis, Jennifer A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-30)
      The declining trend of Arctic September sea ice constitutes a significant change in the Arctic climate system. Large yearto-year variations are superimposed on this sea–ice trend, with the largest variability observed in the eastern Arctic Ocean. Knowledge of the processes important for this variability may lead to an improved understanding of seasonal and long-term changes. Previous studies suggest ...