Blar i forfatter "Pathirana, Irene Dorothea"

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    • Middle to late Holocene paleoproductivity reconstructions for the western Barents Sea: a model-data comparison 

      Pathirana, Irene Dorothea; Knies, Jochen; Felix, Maarten; Mann, U.; Ellingsen, Ingrid H. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-30)
      In this study we focus on late Holocene primary productivity (PP) variability in the western Barents Sea and its response to variable sea ice coverage by combining PP reconstructed from several sediment cores with regional PP trends simulated with a well-constrained organic facies model, OF-Mod 3D. We find that modern production rates reconstructed from buried marine organic matter ...

    • Sea-ice dynamics in an Arctic coastal polynya during the past 6500 years 

      Knies, Jochen; Pathirana, Irene Dorothea; Cabedo-Sanz, Patricia; Banica, Ana; Fabian, Karl; Rasmussen, Tine Lander; Forwick, Matthias; Belt, Simon T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-23)
      The production of high-salinity brines during sea-ice freezing in circum-arctic coastal polynyas is thought to be part of northern deep water formation as it supplies additional dense waters to the Atlantic meridional overturning circulation system. To better predict the effect of possible future summer ice-free conditions in the Arctic Ocean on global climate, it is important to improve our ...

    • Towards an improved organic carbon budget for the western Barents Sea shelf 

      Pathirana, Irene Dorothea; Knies, Jochen; Felix, Maarten; Mann, Ute (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-03-21)
      There is generally a lack of knowledge on how marine organic carbon accumulation is linked to vertical export and primary productivity patterns in the Arctic Ocean. Despite the fact that annual primary production in the Arctic has increased as a consequence of shrinking sea ice, its effect on flux, preservation, and accumulation of organic carbon is still not well understood. In this study, a ...