Blar i Geophysical Institute på forfatter "Fer, Ilker"

Viser treff 1-20 av 84

    • Advances in understanding and parameterization of small-scalephysical processes in the marine Arctic climate system: a review 

      Vihma, Timo; Pirazzini, R; Fer, Ilker; Renfrew, I.A.; Sedlar, J.; Tjernström, M.; Lüpkes, C.; Nygård, T.; Notz, D.; Weiss, J.; Marsan, D.; Cheng, B.; Birnbaum, G.; Gerland, S; Chechin, D.; Gascard, J.-C. (Peer reviewed; Journal article, 2014-09-10)
      The Arctic climate system includes numerous highly interactive small-scale physical processes in the atmosphere, sea ice, and ocean. During and since the International Polar Year 2007–2009, significant advances have been ...

    • Arctic tidal current atlas 

      Baumann, Till Martin; Polyakov, Igor V.; Padman, Laurie; Danielson, Seth L.; Fer, Ilker; Janout, Markus; Williams, William; Pnyushkov, Andrey V. (Journal article; Peer reviewed, 2020)
      Tidal and wind-driven near-inertial currents play a vital role in the changing Arctic climate and the marine ecosystems. We compiled 429 available moored current observations taken over the last two decades throughout the ...

    • Atlantic Water Boundary Current Along the Southern Yermak Plateau, Arctic Ocean 

      Fer, Ilker; Peterson, Algot Kristoffer; Nilsen, Frank (Journal article; Peer reviewed, 2023)
      The major ocean current that carries heat into the Arctic Ocean splits into three main branches of Atlantic Water (AW) and recirculations when it encounters the Yermak Plateau (YP) located north of Svalbard. While the ...

    • Atlantic Water Pathways Along the North-Western Svalbard Shelf Mapped Using Vessel-Mounted Current Profilers 

      Menze, Sebastian; Ingvaldsen, Randi Brunvær; Haugan, Peter M.; Fer, Ilker; Sundfjord, Arild; Beszczynska-Moeller, Agnieszka; Falk-Petersen, Stig (Peer reviewed; Journal article, 2019-03)
      A large amount of warm Atlantic water (AW) enters the Arctic as a boundary current through Fram Strait (West Spitsbergen Current [WSC]) and is the major oceanic heat source to the Arctic Ocean. Along the north‐western ...

    • Atlantic water properties, transport and heat loss from mooring observations north of Svalbard 

      Koenig, Zoe Charlotte; Kalhagen, Kjersti; Kolås, Eivind Hugaas; Fer, Ilker; Nilsen, Frank; Cottier, Finlo (Journal article; Peer reviewed, 2022)
      The Atlantic Water inflow to the Arctic Ocean is transformed and modified in the area north of Svalbard, which influences the Arctic Ocean heat and salt budget. Year-round observations are relatively sparse in this region ...

    • Atlantic water transformation along its poleward pathway across the Nordic Seas 

      Bosse, Anthony; Fer, Ilker; Søiland, Henrik; Thomas, Rossby (Peer reviewed; Journal article, 2018-08-23)
      The warm and salty Atlantic Water is substantially modified along its poleward transit across the Nordic Seas, where it reaches deeper isopycnals. In particular, the Lofoten Basin, exposed to intense air‐sea interactions, ...

    • Autonomous Ocean Turbulence Measurements Using Shear Probes on a Moored Instrument 

      Fer, Ilker; Paskyabi, Mostafa Bakhoday (Peer reviewed; Journal article, 2014-02)
      An internally recording, autonomous instrument has been tested for measurements of ocean turbulence from a mooring line. Measurements were made at a single level in the water column, but for an extended period of time, at ...

    • Data availability principles and practice 

      Smith, J. A.; Cessi, P.; Fer, Ilker; Foltz, G.; Fox-Kemper, Baylor; Heywood, Karen; Jones, N.; Klymak, Jody; Lacasce, Joseph Henry (Journal article, 2020)

    • Diffusive and advective cross-frontal fluxes of inorganic nutrients and dissolved inorganic carbon in the Barents Sea in autumn 

      Koenig, Zoe Charlotte; Fer, Ilker; Chierici, Melissa; Fransson, Agneta; Jones, Elizabeth Marie; Kolås, Eivind Hugaas (Journal article; Peer reviewed, 2023)
      The Atlantic Water, entering the Arctic through the Barents Sea and Fram Strait, is the main source of nutrients in the Arctic Ocean. The Barents Sea is divided by the Polar Front into an Atlantic-dominated domain in the ...

    • Directional wave measurements using an autonomous vessel 

      Hole, L. R.; Fer, Ilker; Peddie, David (Peer reviewed; Journal article, 2016-08-01)
      An autonomous vessel, the Offshore Sensing Sailbuoy, was used for wave measurements near the Ekofisk oil platform complex in the North Sea (56.5º N, 3.2º E, operated by ConocoPhillips) from 6 to 20 November 2015. Being 100 ...

    • Dissipation measurements using temperature microstructure from an underwater glider 

      Peterson, Algot Kristoffer; Fer, Ilker (Peer reviewed; Journal article, 2014-09)
      Microstructure measurements of temperature and current shear are made using an autonomous underwater glider. The glider is equipped with fast-response thermistors and airfoil shear probes, providing measurements of dissipation ...

    • The dissipation of kinetic energy in the Lofoten Basin Eddy 

      Fer, Ilker; Bosse, Anthony; Ferron, Bruno; Bouruet-Aubertot, Pascale (Peer reviewed; Journal article, 2018-06)
      Ocean microstructure, current, and hydrography observations from June 2016 are used to characterize the turbulence structure of the Lofoten Basin eddy (LBE), a long-lived anticyclone in the Norwegian Sea. The LBE had an ...

    • Dissipation of turbulent kinetic energy inferred from Seagliders: an application to the eastern Nordic Seas overflows 

      Beaird, Nicholas; Fer, Ilker; Rhines, Peter B.; Eriksen, Charles (Peer reviewed; Journal article, 2012-12)
      Turbulent mixing is an important process controlling the descent rate, water mass modification, and volume transport augmentation due to entrainment in the dense overflows across the Greenland–Scotland Ridge. These overflows, ...

    • Dissolution from a liquid CO2 lake disposed in the deep ocean 

      Fer, Ilker; Haugan, Peter Mosby (Peer reviewed; Journal article, 2003)
      The dissolution from a liquid CO2 lake source located at a flat ocean bottom at 3,000 m depth is investigated. Using the unsteady, two-dimensional advection–diffusion equation, temporal and spatial distribution of CO2 ...

    • Dynamical controls on the longevity of a non-linear vortex : The case of the Lofoten Basin Eddy 

      Bosse, Anthony; Fer, Ilker; Lilly, Jonathan M.; Søiland, Henrik (Peer reviewed; Journal article, 2019-09-17)
      The Lofoten Basin is the largest oceanic reservoir of heat in the Nordic Seas, and the site of important heat fluxes to the atmosphere. An intense permanent anticyclone in the basin impacts the regional hydrography, ...

    • Effect of substrate type and pellet age on the resuspension of Atlantic salmon faecal material 

      Carvajalino-Fernandez, Marcos Antonio; Keeley, Nigel B.; Fer, Ilker; Law, Brent; Bannister, Raymond (Journal article; Peer reviewed, 2020)
      The influence of substrate type and particle age on the remobilization of settled Atlantic salmon Salmo salar faecal material was studied through a set of controlled experiments in horizontal flow flumes, simulating different ...

    • Faroe Bank Channel Overflow: Mesoscale Variability 

      Darelius, Elin Maria K.; Fer, Ilker; Quadfasel, Detlef (Peer reviewed; Journal article, 2011-11)
      The Faroe Bank Channel is the deepest connection through the Greenland–Scotland Ridge, where dense water formed north of the ridge flows southward over the sill crest, contributing to the formation of North Atlantic Deep ...

    • A full year of turbulence measurements from a drift campaign in the Arctic Ocean 2019-2020 

      Schulz, K.; Mohrholz, Volker; Fer, Ilker; Janout, Markus; Hoppmann, Mario; Schaffer, Janin; Koenig, Zoe Charlotte (Journal article; Peer reviewed, 2022)
      Ocean turbulent mixing is a key process in the global climate system, regulating ocean circulation and the uptake and redistribution of heat, carbon, nutrients, oxygen and other tracers. In polar oceans, turbulent heat ...

    • The Generation of Linear and Nonlinear Internal Waves Forced by Subinertial Tides over the Yermak Plateau, Arctic Ocean 

      Urbancic, Gabin; Lamb, Kevin G.; Fer, Ilker; Padman, Laurie (Journal article; Peer reviewed, 2022)
      The propagation of internal waves (IWs) of tidal frequency is inhibited poleward of the critical latitude, where the tidal frequency is equal to the Coriolis frequency (f). These subinertial IWs may propagate in the presence ...

    • Hydrography and circulation in the Filchner Depression, Weddell Sea, Antarctica 

      Darelius, Elin Maria K.; Makinson, Keith; Daae, Kjersti Birkeland; Fer, Ilker; Holland, Paul R.; Nicholls, Keith W. (Peer reviewed; Journal article, 2014)
      Cold and dense ice shelf water (ISW) emerging from the Filchner-Ronne Ice Shelf cavity in the southwestern Weddell Sea flows northward through the Filchner Depression to eventually descend the con- tinental slope and ...