Now showing items 21-38 of 38

    • North Sea circulation: Atlantic inflow and its destination 

      Winther, Nina Gjerde; Johannessen, Johnny A. (Peer reviewed; Journal article, 2006-12-22)
      This study investigates the Atlantic inflow to the North Sea; its variabil- ity, pathways and destination. Results from a numerical model show that the variability of Atlantic inflow is dependent on the inflow location. ...
    • 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 ...
    • 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 ...
    • Ocean storage 

      Caldeira, Ken; Akai, Makoto; Brewer, Peter G.; Chen, Baixin; Haugan, Peter Mosby; Iwama, Toru; Johnston, Paul; Kheshgi, Haroon; Li, Qingquan; Ohsumi, Takashi; Pörtner, Hans; Sabine, Chris; Shirayama, Yoshihisa; Thomson, Jolyon (IPCC Special Report on Carbon dioxide Capture and Storage, Chapter, 2005)
    • Offshore Wind Farm Wake Effect on Stratification and Coastal Upwelling 

      Bakhoday Paskyabi, Mostafa (Peer reviewed; Journal article, 2015-12-02)
      In this study, the interactions between an offshore wind farm, upper-ocean currents, and stratification are examined under shallow water conditions from a two-dimensional modeling standpoint. The modeling results from two ...
    • Ozone-induced climate change propped up by the Southern Hemisphere oceanic front 

      Ogawa, Fumiaki; Omrani, Nour-Eddine; Nishii, Kazuaki; Nakamura, Hisashi; Keenlyside, Noel (Peer reviewed; Journal article, 2015-11-23)
      The late twentieth century was marked by a significant summertime trend in the Southern Annular Mode (SAM), the dominant mode of tropospheric variability in the extratropical Southern Hemisphere (SH). This trend with ...
    • Reconstructing the time history of the air-sea CO2 disequilibrium and its rate of change in the eastern subpolar North Atlantic, 1972–1989 

      Omar, Abdirahman M.; Olsen, Are (Peer reviewed; Journal article, 2006-02-18)
      This study determines the temporal changes of wintertime surface ocean partial pressure of CO2 (pCO2 SW) in the eastern subpolar North Atlantic (esNA) (50–64ºN; 32–10ºW) by using data of carbon-system parameters and ...
    • Relation between the wind stress curl in the North Atlantic and the Atlantic inflow to the Nordic Seas 

      Sandø, Anne Britt; Furevik, Tore (Journal of Geophysical Research: Oceans, Journal article, 2008-06-27)
      In this study an isopycnic coordinate ocean model has been used to investigate the relationships between the North Atlantic wind stress curl (WSC) and the inflow of Atlantic water to the Nordic Seas. For the period 1995–2001, ...
    • Sensitivity of remote sensing – derived phytoplankton productivity to mixed layer depth: Lessons from the carbon-based productivity model 

      Milutinović, Svetlana; Behrenfeld, Michael J.; Johannessen, Johnny A.; Johannessen, Truls (Peer reviewed; Journal article, 2009-10-01)
      Mixed layer depth (MLD) has long been recognized as having an important influence on underwater light budget and, thus, net primary productivity (NPP) of phytoplankton. The depth- and wavelength-integrated carbon-based ...
    • Sensitivity of simulated wintertime Arctic atmosphere to vertical resolution in the ARPEGE/IFS model 

      Byrkjedal, Øyvind; Esau, Igor N.; Kvamstø, Nils Gunnar (Journal article, 2008)
      The current state of the art general circulation models, including several of those used by the IPCC, show considerable disagreement in simulating present day high latitude climate. This is of major concern and reduces the ...
    • Simulations of the Bergen orographic wind shelter 

      Jonassen, Marius Opsanger; Ólafsson, Haraldur; Valved, Aslaug Skålevik; Reuder, Joachim; Olseth, Jan Asle (Peer reviewed; Journal article, 2013-10-10)
      Even though the coast of western Norway is very windy, the centre of Bergen is rather calm. To gain further understanding of this wind shelter, we study the flow in the complex topography of Bergen during two south-westerly ...
    • Skillful prediction of Barents Sea ice cover 

      Onarheim, Ingrid Husøy; Eldevik, Tor; Årthun, Marius; Ingvaldsen, Randi; Smedsrud, Lars Henrik (Peer reviewed; Journal article, 2015-07-08)
      A main concern of present climate change is the Arctic sea ice cover. In wintertime, its observed variability is largely carried by the Barents Sea. Here we propose and evaluate a simple quantitative and prognostic framework ...
    • Solar forcing synchronizes decadal North Atlantic climate variability 

      Thiéblemont, Rémi; Matthes, Katja; Omrani, Nour-Eddine; Kodera, Kunihiko; Hansen, Felicitas (Peer reviewed; Journal article, 2015-09-15)
      Quasi-decadal variability in solar irradiance has been suggested to exert a substantial effect on Earth’s regional climate. In the North Atlantic sector, the 11-year solar signal has been proposed to project onto a pattern ...
    • A statistical gap-filling method to interpolate global monthly surface ocean carbon dioxide data 

      Jones, Steve D.; Le Quéré, Corinne; Rödenbeck, Christian; Manning, Andrew C.; Olsen, Are (Peer reviewed; Journal article, 2015-10-24)
      We have developed a statistical gap-filling method adapted to the specific coverage and properties of observed fugacity of surface ocean CO2 (fCO2). We have used this method to interpolate the Surface Ocean CO2 Atlas (SOCAT) ...
    • Thermodynamic controls of the Atlantic Niño 

      Nnamchi, Hyacinth C; Li, Jianping; Kucharski, Fred; Kang, In-Sik; Keenlyside, Noel; Chang, Ping; Farneti, Riccardo (Peer reviewed; Journal article, 2015-11-26)
      Prevailing theories on the equatorial Atlantic Niño are based on the dynamical interaction between atmosphere and ocean. However, dynamical coupled ocean-atmosphere models poorly simulate and predict equatorial Atlantic ...
    • Tidal forcing, energetics, and mixing near the Yermak Plateau 

      Fer, Ilker; Müller, Malte; Peterson, Algot Kristoffer (Peer reviewed; Journal article, 2015-03-27)
      The Yermak Plateau (YP), located northwest of Svalbard in Fram Strait, is the final passage for the inflow of warm Atlantic Water into the Arctic Ocean. The region is characterized by the largest barotropic tidal velocities ...
    • Variations of Mixed Layer Depth and Water Properties in the Norwegian Sea for the period 1949-1999 

      Nilsen, Jan Even Øie; Falck, Eva (Peer reviewed; Journal article, 2006-06-08)
      The mixed layer of the ocean and the processes therein affect the ocean’s biological production, the exchanges with the atmosphere, and the water modification processes important in a climate change per- spective. To provide ...