Browsing Institutt for geofag by Author "Dagestad, Knut-Frode"

Now showing items 1-4 of 4

  • Current shear and turbulence during a near-inertial wave 
    Röhrs, Johannes; Halsne, Trygve; Sutherland, Graig; Dagestad, Knut-Frode; Hole, Lars Robert; Brostrøm, Gøran; Christensen, Kai Håkon (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Surface currents and turbulent mixing were observed during a near-inertial wave (NIW) using an accousting doppler current profiler (ADCP) and satellite-tracked drifters. Drifter trajectories sampled at three depth levels ...
  • Evaluating the leeway coefficient of ocean drifters using operational marine environmental prediction systems 
    Sutherland, Graig; Soontiens, Nancy; Davidson, Fraser; Smith, Gregory C.; Bernier, Natacha; Blanken, Hauke; Schillinger, Douglas; Marcotte, Guillaume; Röhrs, Johannes; Dagestad, Knut-Frode; Christensen, Kai Håkon; Breivik, Øyvind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Abstract The water following characteristics of six different drifter types are investigated using two different operational marine environmental prediction systems: one produced by Environment and Climate Change Canada ...
  • Surface currents in operational oceanography: Key applications, mechanisms, and methods 
    Röhrs, Johannes; Sutherland, Graig; Jeans, Gus; Bedington, Michael; Sperrevik, Ann Kristin; Dagestad, Knut-Frode; Gusdal, Yvonne; Mauritzen, Cecilie; Dale, Andrew; Lacasce, Joseph Henry (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    This paper reviews physical mechanisms, observation techniques and modelling approaches dealing with surface currents on short time scales (hours to days) relevant for operational oceanography. Key motivations for this ...
  • Vertical structure and seasonal variability of the inflow to the Lofoten Basin inferred from high resolution Lagrangian simulations 
    Dugstad, Johannes Sandanger; Kozalka, Inga Monika; Isachsen, Pål Erik; Dagestad, Knut-Frode; Fer, Ilker (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The Lofoten Basin in the eastern Nordic Seas plays a central role in modifying the warm Atlantic Water inflow toward the Arctic Ocean. Here, the Atlantic Water experiences increased residence times, cooling, and substantial ...