Now showing items 249-268 of 776

    • A global monthly climatology of oceanic total dissolved inorganic carbon: a neural network approach 

      Broullón, Daniel; Velo, Antón; Hoppema, Mario; Olsen, Are; Takahashi, Taro; Key, Robert M.; Tanhua, Toste; Santana-Casiano, J. Magdalena; Kozyr, Alex; Perez, Fiz F. (Journal article; Peer reviewed, 2020)
      Anthropogenic emissions of CO2 to the atmosphere have modified the carbon cycle for more than 2 centuries. As the ocean stores most of the carbon on our planet, there is an important task in unraveling the natural and ...
    • A global monthly climatology of total alkalinity: A neural network approach 

      Broullón, Daniel; Perez, F. F.; Velo, Antón; Hoppema, Mario; Olsen, Are Christian Sviggum; Takahashi, Taro; Key, Robert M.; Tanhua, Toste; Gonzales-Davila, Melchor; Jeansson, Emil; Kozyr, Alexander; van Heuven, Steven (Peer reviewed; Journal article, 2019-07-31)
      Global climatologies of the seawater CO2 chemistry variables are necessary to assess the marine carbon cycle in depth. The climatologies should adequately capture seasonal variability to properly address ocean acidification ...
    • Global observed changes in daily climate extremes of temperature and precipitation 

      Alexander, L. V.; Zhang, X.; Peterson, T. C.; Caesar, J.; Gleason, B.; Klein Tank, A.; Haylock, M.; Collins, D.; Trewin, B.; Rahimzadeh, F.; Tagipour, A.; Ambenje, P.; Kumar, K. Rupa; Revadekar, J.; Griffiths, G.; Vincent, L.; Stephenson, David B.; Burn, J.; Aguliar, E.; Brunet, M.; Taylor, M.; New, M.; Zhai, P.; Rusticucci, M.; Vazquez-Aguirre, J. L. (Peer reviewed; Journal article, 2006-03-15)
      A suite of climate change indices derived from daily temperature and precipitation data, with a primary focus on extreme events, were computed and analyzed. By setting an exact formula for each index and using specially ...
    • Global variability in seawater Mg:Ca and Sr:Ca ratios in the modern ocean 

      Lebrato, Mario; Garbe-Schönberg, Dieter; Müller, Marius N.; Blanco-Ameijeiras, Sonia; Feely, Richard A.; Lorenzoni, Laura; Molinero, Juan-Carlos; Bremer, Karen; Jones, Daniel O.B.; Iglesias-Rodriguez, Debora; Greeley, Dana; Lamare, Miles D.; Paulmier, Aurelien; Graco, Michelle; Cartes, Joan; Barcelos E Ramos, Joana; de Lara, Ana; Sanchez-Leal, Ricardo; Jimenez, Paz; Paparazzo, Flavio E.; Hartman, Susan E.; Westernströer, Ulrike; Küter, Marie; Benavides, Roberto; da Silva, Armindo F.; Bell, Steven; Payne, Chris; Ólafsdóttir, Sædis; Robinson, Kelly; Jantunen, Liisa M.; Korablev, Alexander; Webster, Richard J.; Jones, Elizabeth Marie; Gilg, Olivier; Bailly du Bois, Pascal; Beldowski, Jacek; Ashjian, Carin; Yahia, Nejib D.; Twining, Benjamin S.; Chen, Xue-Gang; Tseng, Li-Chun; Hwang, Jiang-Shiou; Dahms, Hans-Uwe; Oschlies, Andreas (Journal article; Peer reviewed, 2020)
      Seawater Mg:Ca and Sr:Ca ratios are biogeochemical parameters reflecting the Earth–ocean–atmosphere dynamic exchange of elements. The ratios’ dependence on the environment and organisms' biology facilitates their application ...
    • Global wind speed and wave height extremes derived from long-duration satellite records 

      Takbash, Alicia; Young, Ian R; Breivik, Øyvind (Peer reviewed; Journal article, 2019)
      The application of extreme-value analysis to long-duration (30 year) global altimeter and radiometer datasets is considered. In contrast to previous extreme-value analyses of satellite data, the dataset is sufficiently ...
    • The greater Agulhas Current system: an integrated study of its mesoscale variability 

      Backeberg, Bjørn C.; Johannessen, Johnny A.; Bertino, Laurent; Reason, Chris J.C. (Journal of Operational Oceanography, Journal article, 2008-02)
      For the purpose of developing an operational oceanography system for the greater Agulhas Current regime, a high resolution Hybrid Coordinate Ocean Model (HYCOM) has been set in a nested configuration. The intense and complex ...
    • Greenland surface air temperature changes from 1981 to 2019 and implications for ice-sheet melt and mass-balance change 

      Hanna, Edward; Cappelen, John; Fettweis, Xavier; Mernild, Jacob Sebastian Haugaard; Mote, Thomas L.; Mottram, Ruth; Steffen, Konrad; Ballinger, Thomas J.; Hall, Richard J. (Journal article; Peer reviewed, 2020)
      We provide an updated analysis of instrumental Greenland monthly temperature data to 2019, focusing mainly on coastal stations but also analysing ice‐sheet records from Swiss Camp and Summit. Significant summer (winter) ...
    • Greenland-Scotland overflow studied by hydro-chemical multivariate analysis 

      Fogelquist, E.; Blindheim, J.; Tanhua, Toste; Østerhus, Svein; Buch, E.; Rey, Francisco (Peer reviewed; Journal article, 2003-01)
      Hydrographic, nutrient and halocarbon tracer data collected in July-August 1994 in the Norwegian Sea, the Faroe Bank Channel (FBC), the Iceland and Irminger Basins and the Iceland Sea are resented. Special attention was ...
    • Grounding Performance under Lightning Surges in High Voltage Substations 

      Steinsland, Vegard (Master thesis, 2018-06-16)
      To achieve electromagnetic compatibility (EMC) and sufficient protection against lighting transients in the power transmission system, understanding of the grounding system transient behavior becomes crucial when deviating ...
    • Growing Ice in a Tank: Young Sea Ice Evolution and Turbulence in the Under Ice Boundary Layer 

      Håvik, Lisbeth (Master thesis, 2011-11-14)
      Thin sea ice and its modifications of the oceanic boundary layer are important in the context of the recent retreat of the Arctic sea ice cover. To study turbulence in the under ice boundary layer during thin sea ice growth, ...
    • Has a warm North Atlantic contributed to recent European cold winters? 

      Keenlyside, Noel; Omrani, Nour-Eddine (Peer reviewed; Journal article, 2014-06-02)
      The rise of global surface temperature waned during the last decade, despite increasing greenhouse gas concentrations. The temperature changes were most pronounced over northern hemisphere land masses during winter (Cohen ...
    • Heat flux variations in the eastern Norwegian Atlantic Current toward 

      Orvik, Kjell Arild; Skagseth, Øystein (Geophysical Research Letters;32(2005) L14, Journal article, 2005-07-21)
    • Heterogeneity of impacts of high CO2 on the North Western European shelf 

      Artioli, Yuri; Blackford, Jerry C.; Nondal, Gisle; Bellerby, Richard; Wakelin, Sarah L.; Holt, Jason T.; Butenschön, Momme; Allen, Julian Icarus (Peer reviewed; Journal article, 2014-02-03)
      The increase in atmospheric CO2 is a dual threat to the marine environment: from one side it drives climate change, leading to modifications in water temperature, circulation patterns and stratification intensity; on the ...
    • High northern latitude surface air temperature: comparison of existing data and creation of a new gridded data set 1900–2000 

      Kuzmina, Svetlana I.; Johannessen, Ola M.; Bengtsson, Lennart; Aniskina, Olga G.; Bobylev, Leonid P. (Peer reviewed; Journal article, 2008-03)
      Detection, attribution and understanding of temperature changes in the high northern latitudes depend on constraining uncertainties and resolving apparent discrepancies in observational data sets. We quantitatively compare ...
    • High resolution sea ice monitoring using space borne Synthetic Aperture Radar 

      Muckenhuber, Stefan (Doctoral thesis, 2017-12-06)
      Sea ice represents a major factor in the climate system and updated knowl- edge about sea ice conditions is important for shipping and offshore industry, local communities and others. Due to its remote location and strong ...
    • High-frequency internal wave observations in the marginal ice zone 

      Sandven, Stein; Johannessen, Ola M. (Journal of Geophysical Research: Oceans;92(C7), Journal article, 1987-06-30)
    • A high‐resolution hindcast of wind and waves for the North Sea, the Norwegian Sea, and the Barents Sea 

      Reistad, Magnar; Breivik, Øyvind; Haakenstad, Hilde; Aarnes, Ole Johan; Furevik, Birgitte Rugaard; Bidlot, Jean-Raymond (Peer reviewed; Journal article, 2011-05)
      A combined high-resolution atmospheric downscaling and wave hindcast based on the ERA-40 reanalysis covering the Norwegian Sea, the North Sea, and the Barents Sea is presented. The period covered is from September 1957 to ...
    • Holocene trends in the foraminifer record from the Norwegian Sea and the North Atlantic Ocean 

      Andersson, Carin; Pausata, Francesco S. R.; Jansen, Eystein; Risebrobakken, Bjørg; Telford, Richard J. (Peer reviewed; Journal article, 2010-03-30)
      The early to mid-Holocene thermal optimum is a well-known feature in a wide variety of paleoclimate archives from the Northern Hemisphere. Reconstructed summer temperature anomalies from across northern Europe show a clear ...
    • How does latent cooling affect baroclinic development in an idealized framework? 

      Haualand, Kristine Flacké; Spengler, Thomas (Peer reviewed; Journal article, 2019)
      Latent cooling by evaporating or melting hydrometeors has recently been shown to contribute to the positive low-level potential vorticity (PV) anomaly below the layer of latent heating in midlatitude cyclones. While the ...