Blar i Geophysical Institute på tittel

Viser treff 775-794 av 1292

    • Numerical study on the hydrodynamic background in coastal aquaculture dominated regions and corresponding interactions in the Yellow Sea 

      Lin, Fan (Doctoral thesis, 2022-01-07)
      The Yellow Sea is an important region for aquaculture in China as the main production area for shellfish and seaweed. The aquaculture organisms sometimes can be the major group in a local ecosystem. e.g., in the Sanggou ...

    • Numerisk modellering av varmeoverskudd i grunnvarmeanlegg – Konsekvenser og forebyggende tiltak 

      Midttveit, Hanne Vikingstad (Master thesis, 2018-06-21)
      The emission of greenhouse gases must be reduced to meet the objectives of The Paris Agreement. Geothermal heat pumps (GSHP) can reduce energy consumption and emission of greenhouse gases in the building sector. When an ...

    • Numerisk simulering av orografisk nedbør på Vestlandet 

      Teigen, Roar (Master thesis, 2005)

    • Numeriske simuleringer av strøm over mesoskala fjell med den ikke-hydrostatiske modellen MEMO 

      Wittrup, Line (Master thesis, 2005)

    • Nutrients vs. turbulence, and the future of Arctic Ocean primary production 

      Randelhoff, Achim; Sundfjord, Arild; Fer, Ilker; Reigstad, Marit; Tremblay, Jean-Eric; Guthrie, John D. (Conference poster, 2016)

    • Observation and Simulation of Ice Tongues and Vortex Pairs in the Marginal Ice Zone 

      Johannessen, Ola M.; Sandven, Stein; Budgell, W. Paul; Johannessen, Johnny A.; Shuchman, Robert A. (Geophysical Monograph 85, Chapter, 1994)
      Recognizes the major advancements of the past decade in understanding the interactions among the polar oceans and global atmospheric and oceanic systems. This volume addresses the following topics: Polar Ocean Circulation ...

    • Observational evidence for on-shelf heat transport driven by dense water export in the Weddell Sea 

      Darelius, Elin Maria K.; Daae, Kjersti; Dundas, Vår Iren Hjorth; Fer, Ilker; Hellmer, Hartmut H.; Janout, Markus; Nicholls, Keith W.; Sallée, Jean-Bapiste; Østerhus, Svein (Journal article; Peer reviewed, 2023)
      The transport of oceanic heat towards the Antarctic continental margin is central to the mass balance of the Antarctic Ice Sheet. Recent modeling efforts challenge our view on where and how the on-shelf heat flux occurs, ...

    • Observational validation of the diffusive convection flux laws in the Amundsen Basin, Arctic Ocean 

      Guthrie, John D.; Fer, Ilker; Morison, James H. (Peer reviewed; Journal article, 2015-12)
      The low levels of mechanically driven mixing in many regions of the Arctic Ocean make double diffusive convection virtually the only mechanism for moving heat up from the core of Atlantic Water towards the surface. In an ...

    • Observations of barotropic oscillations and their influence on mixing in the Faroe bank channel overflow region 

      Darelius, Elin Maria K.; Ullgren, Jenny; Fer, Ilker (Peer reviewed; Journal article, 2013)
      Observations of hydrography, currents, and microstructure are presented together with sea surface height (SSH) patterns from concurrent satellite tracks to describe the subinertial oscillations in the region downstream of ...

    • Observations of bridge stay cable vibrations in dry and wet conditions: A case study 

      Daniotti, Nicolo; Jakobsen, Jasna Bogunovic; Snæbjørnsson, Jonas Thor; Cheynet, Etienne; Wang, Jungao (Journal article; Peer reviewed, 2021-04-01)
      The characteristics of wind- and rain-wind-induced vibrations of bridge stay cables are studied by using ambient vibrations records acquired on a cable-stayed bridge. Mean wind speed and wind-cable angle, as well as the ...

    • Observations of brine plumes below Arctic sea ice 

      Peterson, Algot Kristoffer (Journal article, 2017)
      In sea ice, interconnected pockets and channels of brine are surrounded by fresh ice. Over time, brine is lost by gravity drainage and flushing. The timing of salt release and its interaction with the underlying water can ...

    • Observations of energetic turbulence on the Weddell Sea continental slope 

      Fer, Ilker; Darelius, Elin Maria K.; Daae, Kjersti Birkeland (Peer reviewed; Journal article, 2016-01-23)
      Turbulence profile measurements made on the upper continental slope and shelf of the southeastern Weddell Sea reveal striking contrasts in dissipation and mixing rates between the two sites. The mean profiles of dissipation ...

    • Observations of highly regular oscillations in the overflow plume downstream of the Faroe Bank Channel 

      Geyer, Florian; Østerhus, Svein; Hansen, Bogi; Quadfasel, D. (Peer reviewed; Journal article, 2006-12-23)
      The Faroe Bank Channel (FBC) is the deepest connection between the Atlantic Ocean and the Nordic Seas. This work describes the dynamic properties of the plume of dense overflow water descending from the Faroe Bank Channel ...

    • Observations of the Storfjorden overflow 

      Fer, Ilker; Skogseth, Ragnheid; Haugan, Peter Mosby (Peer reviewed; Journal article, 2003)
      The mixing and spreading of the Storfjorden overflow were investigated with density and horizontal velocity profiles collected at closely spaced stations. The dense bottom water generated by strong winter cooling, enhanced ...

    • Observations of Turbulence at a Near-Surface Temperature Front in the Arctic Ocean 

      Koenig, Zoé Charlotte; Fer, Ilker; Kolås, Eivind; Fossum, Trygve Olav; Norgren, Petter; Ludvigsen, Martin (Journal article; Peer reviewed, 2020)
      High-resolution ocean temperature, salinity, current, and turbulence data were collected at an Arctic thermohaline front in the Nansen Basin. The front was close to the sea ice edge and separated the cold and fresh surface ...

    • Observed anomalous atmospheric patterns in summers of unusual Arctic sea icemelt 

      Knudsen, Erlend Moster (Peer reviewed; Journal article, 2015-04-16)
      The Arctic sea ice retreat has accelerated over the last decade. The negative trend is largest in summer, but substantial interannual variability still remains. Here we explore observed atmospheric conditions and feedback ...

    • Observed Changes in the Arctic Freshwater Outflow in Fram Strait 

      Karpouzoglou, Theodoros; de Steur, Laura; Smedsrud, Lars Henrik; Sumata, Hiroshi (Journal article; Peer reviewed, 2022)
      We have updated time series of liquid fresh water transport (FWT) in the East Greenland Current (EGC) in the western Fram Strait with mooring observations since 2015. Novel data have been used to correct earlier estimates ...

    • Observed vulnerability of Filchner-Ronne Ice Shelf to wind-driven inflow of warm deep water 

      Darelius, Elin Maria K.; Fer, Ilker; Nicholls, Keith W. (Peer reviewed; Journal article, 2016-08-02)
      The average rate of melting at the base of the large Filchner-Ronne Ice Shelf in the southern Weddell Sea is currently low, but projected to increase dramatically within the next century. In a model study, melt rates ...

    • Observing Antarctic Bottom Water in the Southern Ocean 

      Silvano, Alessandro; Purkey, Sarah; Gordon, Arnold L.; Castagno, Pasquale; Stewart, Andrew L.; Rintoul, Stephen R.; Foppert, Annie; Gunn, Kathryn L.; Herraiz-Borreguero, Laura; Aoki, Shigeru; Nakayama, Yoshihiro; Naveira Garabato, Alberto C.; Spingys, Carl; Akhoudas, Camille Hayatte; Sallée, Jean-Baptiste; de Lavergne, Casimir; Abrahamsen, E. Povl; Meijers, Andrew J. S.; Meredith, Michael P.; Zhou, Shenjie; Tamura, Takeshi; Yamazaki, Kaihe; Ohshima, Kay I.; Falco, Pierpaolo; Budillon, Giorgio; Hattermann, Tore; Janout, Markus A.; Llanillo, Pedro; Bowen, Melissa M.; Darelius, Elin Maria K.; Østerhus, Svein; Nicholls, Keith W.; Stevens, Craig; Fernandez, Denise; Cimoli, Laura; Jacobs, Stanley S.; Morrison, Adele K.; Hogg, Andrew McC.; Haumann, F. Alexander; Mashayek, Ali; Wang, Zhaomin; Kerr, Rodrigo; Williams, Guy D.; Lee, Won Sang (Journal article; Peer reviewed, 2023)
      Dense, cold waters formed on Antarctic continental shelves descend along the Antarctic continental margin, where they mix with other Southern Ocean waters to form Antarctic Bottom Water (AABW). AABW then spreads into the ...

    • Observing atmospheric convection with dual-scanning lidars 

      Duscha, Christiane Anabell; Palenik, Juraj; Spengler, Thomas; Reuder, Heinrich Joachim (Journal article; Peer reviewed, 2023)
      While convection is a key process in the development of the atmospheric boundary layer, conventional meteorological measurement approaches fall short in capturing the evolution of the complex dynamics of convection. To ...