Now showing items 1-20 of 129

  • Analysis of a low-level coastal jet off the western coast of Norway 

    Christakos, Konstantinos; Varlas, Georgios; Reuder, Joachim; Katsafados, Petros; Papadopoulos, Anastasios (Elsevier, 2014)
    Offshore wind installations depend strongly on an improved knowledge of the atmospheric and ocean conditions affecting the marine atmospheric boundary layer (MABL). In particular the better understanding of atmospheric ...
  • Analysis of CryoSat’s radar altimeter waveforms over different Arctic sea ice regimes 

    Zygmuntowska, Marta; Khvorostovsky, Kirill (The University of Bergen, 2014-06-11)
    Satellite altimetry has been used to derive information about sea ice thickness in the Arctic already for several decades. As part of the algorithms applied the shape of the radar signal is used to identify leads, the ...
  • Analysis of the vertical temperature structure in the Bergen valley, Norway, and its connection to pollution episodes, and its connection to pollution episodes 

    Wolf, Tobias; Esau, Igor; Reuder, Joachim (WileyAmerican Geophysical Union, 2014-09)
    The vertical temperature profile in the lowest 1000m of the atmosphere determines a number of important physical processes and meteorological phenomena such as high concentrations of anthropogenic air pollutants in urban ...
  • Anthropogenic increase of oceanic pCO2 in the Barents Sea surface water 

    Omar, Abdirahman M.; Johannessen, Truls; Kaltin, Staffan; Olsen, Are (American Geophysical Union, 2003-12-26)
    We evaluate the change of surface water CO2 partial pressure ( pCO2 sw) in the Barents Sea (BS) between 1967 and 2000–2001. We use temperature (T) data collected during a survey in the BS in 1967 and a relationship between ...
  • Arctic sea ice and Eurasian climate: A review 

    Gao, Yongqi; Sun, Jianqi; Li, Fei; He, Shengping; Sandven, Stein; Yan, Qing; Zhang, Zhongshi; Lohmann, Katja; Keenlyside, Noel; Furevik, Tore; Suo, Lingling (Science Press, 2014-11-28)
    The Arctic plays a fundamental role in the climate system and has shown significant climate change in recent decades, including the Arctic warming and decline of Arctic sea-ice extent and thickness. In contrast to the ...
  • Arctic/Atlantic exchanges via the Subpolar Gyre 

    Langehaug, Helene Reinertsen; Medhaug, Iselin; Eldevik, Tor; Otterå, Odd Helge (American Meteorological Society, 2012)
    In the present study we investigate the decadal variability in the strength and shape of the Subpolar Gyre (SPG) in a 600-year pre-industrial simulation using the Bergen Climate Model. The atmospheric influence on the ...
  • Atmospheric boundary layers in storms: advanced theory and modelling applications 

    Zilitinkevich, Sergej S.; Esau, Igor N.; Baklanov, A. (European Geosciences Union/Copernicus, 2005-03-29)
    Turbulent planetary boundary layers (PBLs) control the exchange processes between the atmosphere and the ocean/land. The key problems of PBL physics are to determine the PBL height, the momentum, energy and matter fluxes ...
  • Atmospheric-driven state transfer of shore-fast ice in the northeastern Kara Sea 

    Divine, Dmitry; Korsnes, Reinert; Makshtas, Alexander; Godtliebsen, Fred; Svendsen, Harald (American Geophysical Union, 2005-09-21)
    Frequencies of observed occurrences of shore-fast ice in the northeastern Kara Sea for each month during 1953–1990 reveal a multimodality of shore-fast ice extent in late winter and spring. The fast ice extent exhibits ...
  • Autonomous Ocean Turbulence Measurements Using Shear Probes on a Moored Instrument 

    Fer, Ilker; Paskyabi, Mostafa Bakhoday (American Meteorological Society, 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, ...
  • Baroclinic Instability in the West Spitsbergen Current 

    Teigen, Sigurd Henrik; Nilsen, Frank; Skogseth, Ragnheid; Gjevik, Bjørn; Beszczynska-Möller, Agnieszka (2011-07-15)
    Baroclinic instability in the West Spitsbergen Current is investigated, based on data from an array of current meter moorings along 78.83oN, across the deeper (1000-2400 m) section of the continental slope west of Svalbard. ...
  • Barotropic instability in the West Spitsbergen Current 

    Teigen, Sigurd Henrik; Nilsen, Frank; Gjevik, Bjørn (American Geophysical Union, 2010-07-24)
    Barotropic instability in the shoreward branch of the West Spitsbergen Current is investigated on the basis of data from an array of current meter moorings along 78.83°N, across the upper continental slope and shelf break ...
  • The BLLAST field experiment: Boundary-Layer late afternoon and sunset turbulence 

    Lothon, Marie; Louhou, Fabienne; Pino, David; Couvreux, Fleur; Pardyjak, Erik; Reuder, Joachim; Vilà-Guerau De Arellano, Jordi; Durand, Pierre; Hartogensis, Oscar K.; Legain, Dominique; Augustin, Patrick V.; Gioli, Beniamino; Lenschow, Donald H.; Faloona, Ian C.; Yagüe, Carlos; Alexander, Daniel C.; Angevine, Wayne M.; Bargain, Erwan; Barrié, Joël; Bazile, Eric; Bezombes, Yannick; Blay-Carreras, Estel; Van De Boer, Anneke; Boichard, Jean Luc; Bourdon, Anne; Butet, Alain; Campistron, Bernard A.; De Coster, Olivier; Cuxart, Joan; Dabas, Alain M.; Darbieu, Clara; Deboudt, Karine; Delbarre, Hervé; Derrien, Solène; Flament, Pascal; Fourmentin, Marc; Garai, Anirban; Gibert, Fabien; Graf, Alexander T.; Gröbner, Julian; Guichard, Françoise; Jiménez, Mantonia Antonia; Jonassen, Marius Opsanger; Van Den Kroonenberg, Aline C.; Magliulo, Vincenzo; Martin, Sabrina; Martinez, Daniel; Mastrorillo, Laurence; Moene, Arnold F.; Molinos, Francisco Lendinez; Moulin, Emilie; Pietersen, Henk P.; Piguet, Bruno; Pique, Eric; Román-Cascón, Carlos; Rufin-Soler, Caroline; Saïd, Frédérique; Sastre-Marugán, Mariano; Seity, Yann; Steeneveld, Gert Jan; Toscano, Piero; Traullé, Olivier; Tzanos, Diane; Wacker, Stefan; Wildmann, Norman; Zaldei, Alessandro (Copernicus Publications, 2014-10-16)
    Due to the major role of the sun in heating the earth's surface, the atmospheric planetary boundary layer over land is inherently marked by a diurnal cycle. The afternoon transition, the period of the day that connects the ...
  • A brief history of climate – the northern seas from the Last Glacial Maximum to global warming 

    Eldevik, Tor; Risebrobakken, Bjørg; Bjune, Anne Elisabeth; Andersson, Carin; Birks, Harry John Betteley; Dokken, Trond Martin; Drange, Helge; Glessmer, Mirjam Sophia; Li, Camille; Nilsen, Jan Even Øie; Otterå, Odd Helge; Richter, Kristin; Skagseth, Øystein (Elsevier, 2014-12)
    The understanding of climate and climate change is fundamentally concerned with two things: a well-defined and sufficiently complete climate record to be explained, for example of observed temperature, and a relevant ...
  • Bruk og misbruk av klimaframskrivninger 

    Sorteberg, Asgeir (CICERO Senter for klimaforskning, 2009)
    Forskere er avhengig av pålitelige klimaframskrivninger for å kunne si hvilke konsekvenser klimaforandringer får for mennesker og samfunn i framtiden. Men hva kan klimaframskrivninger brukes til og hvordan bør ...
  • Changes in atmospheric variability in a glacial climate and the impacts on proxy data: a model intercomparison 

    Pausata, Francesco S. R.; Li, Camille; Wettstein, Justin; Nisancioglu, Kerim Hestnes; Battisti, David Stephen (Copernicus PublicationsEuropean Geosciences Union, 2009-09-11)
    Using four different climate models, we investigate sea level pressure variability in the extratropical North Atlantic in the preindustrial climate (1750 AD) and at the Last Glacial Maximum (LGM, 21 kyrs before present) ...
  • Changes in the properties and distribution of the intermediate and deep waters in the Fram Strait 

    Langehaug, Helene Reinertsen; Falck, Eva (Elsevier, 2012-04)
    The Fram Strait is the only deep connection between the Arctic Ocean and the Nordic Seas (Greenland, Iceland, and Norwegian Seas), with a sill depth of approximately 2600 m. Consequently, observations from this area ...
  • Circulation and water masses beneath the northern Ronne Ice Shelf, Antarctica 

    Nicholls, Keith W.; Makinson, Keith; Østerhus, Svein (American Geophysical Union, 2004-12-14)
    We present oceanographic data from beneath the northern Ronne Ice Shelf. The data were collected during the austral summer of 2002–2003 from four sites located near the ice front in the Ronne Depression. They consist of ...
  • A Comparison of LiDAR and Radiosonde Wind Measurements 

    Kumer, Valerie-Marie; Reuder, Joachim; Furevik, Birgitte Rugaard (2014)
    Doppler LiDAR measurements are already well established in the wind energy research and their accuracy has been tested against met mast data up to 100 m above ground. However, the new generation of scanning LiDAR have a ...
  • Coupled Al-Si geochemistry in an ocean general circulation model: A tool for the validation of oceanic dust deposition fields? 

    Gehlen, M.; Heinze, Christoph; Maier-Reimer, E.; Measures, C. I. (American Geophysical Union, 2003-03-19)
    We introduced the marine cycle of Al into a geochemical ocean general circulation model in order to assess the potential of modeled surface ocean dissolved Al as a tracer for dust input to the world ocean. The geochemical ...
  • Critical vulnerabilities of marine and sea ice–based ecosystems in the high Arctic 

    Johannessen, Ola M.; Miles, Martin W. (Springer, 2010-12-01)
    The objectives of this paper are to summarise: (1) observed 20th-century and projected 21st-century changes in key components of the Arctic climate system and (2) probable impacts on the Arctic marine environment, with ...