Now showing items 665-684 of 906

    • Regional, seasonal, and predictable Arctic sea ice change 

      Onarheim, Ingrid Husøy (Doctoral thesis, 2017-12-07)
      The loss of Arctic sea ice is one of the most prominent and best quantified indicators of ongoing global climate change. Satellite passive microwave observations since 1979 indicate significant negative sea ice extent ...
    • Relating model bias and prediction skill in the equatorial Atlantic 

      Counillon, Francois; Keenlyside, Noel; Toniazzo, Thomas; Koseki, Shunya; Demissie, Teferi Dejene; Bethke, Ingo; Wang, Yiguo (Journal article; Peer reviewed, 2021)
      We investigate the impact of large climatological biases in the tropical Atlantic on reanalysis and seasonal prediction performance using the Norwegian Climate Prediction Model (NorCPM) in a standard and an anomaly coupled ...
    • 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, ...
    • The relationship between the eddy-driven jet stream and northern European sea level variability 

      Mangini, Fabio; Chafik, Léon; Madonna, Erica; Li, Camille; Bertino, Laurent; Nilsen, Jan Even Øie (Journal article; Peer reviewed, 2021)
      Wintertime sea level variability over the northern European continental shelf is largely wind-driven. Using daily gridded sea level anomaly from altimetry, we examine both the spatial and the temporal relationship between ...
    • Resolving the controls of water vapour isotopes in the Atlantic sector 

      Bonne, Jean-Louis; Behrens, Melanie K.; Meyer, Hanno; Kipfstuhl, Sepp; Rabe, Benjamin; Schonicke, Lutz; Steen-Larsen, Hans Christian; Werner, Martin (Peer reviewed; Journal article, 2019-04-09)
      Stable water isotopes are employed as hydrological tracers to quantify the diverse implications of atmospheric moisture for climate. They are widely used as proxies for studying past climate changes, e.g., in isotope records ...
    • Resolving the upper-ocean warm layer improves the simulation of the Madden-Julian oscillation 

      Tseng, Wan-Ling; Tsuang, Ben-Jei; Keenlyside, Noel; Hsu, Huang-Hsiung; Tu, Chia-Ying (Peer reviewed; Journal article, 2014-09)
      Here we show that coupling a high-resolution one-column ocean model to an atmospheric general circulation model dramatically improves simulation of the Madden–Julian oscillation (MJO) to have realistic strength, period, ...
    • Response of Arctic Ocean stratification to changing river runoff in a column model 

      Nummelin, Aleksi; Li, Camille; Smedsrud, Lars Henrik (Peer reviewed; Journal article, 2015-04-07)
      A one-dimensional model of the atmosphere-ice-ocean column is used to study the effects of changing river runoff to the Arctic Ocean. River runoff is the largest contributor of freshwater to the Arctic and is expected to ...
    • Retention of Coastal Cod Eggs in a Fjord Caused by Interactions between Egg Buoyancy and Circulation Pattern 

      Myksvoll, Mari Skuggedal; Sundby, Svein; Ådlandsvik, Bjørn; Vikebø, Frode B. (Peer reviewed; Journal article, 2011-08-01)
      Norwegian coastal cod form a stationary population of Atlantic cod Gadus morhua consisting of several genetically separated subpopulations. A small-scale differentiation in marine populations with pelagic eggs and larvae ...
    • Retrieval of snow properties from the Sentinel-3 Ocean and Land Colour Instrument 

      Kokhanovsky, Alexander; Lamare, Maxim; Danne, Olaf; Brockmann, Carsten; Dumont, Marie; Picard, Ghislain; Arnaud, Laurent; Favier, Vincent; Jourdain, Bruno; Le Meur, Emmanuel; Di Mauro, Biagio; Aoki, Teruo; Niwano, Masashi; Rozanov, Vladimir; Korkin, Sergey; Kipfstuhl, Sepp; Freitag, Johannes; Hoerhold, Maria; Zuhr, Alexandra; Vladimirova, Diana; Faber, Anne-Katrine; Steen-Larsen, Hans Christian; Wahl, Sonja; Andersen, Jonas K.; Vandecrux, Baptiste; van As, Dirk; Mankoff, Kenneth D.; Kern, Michael; Zege, Eleonora; Box, Jason E. (Journal article, 2019)
      The Sentinel Application Platform (SNAP) architecture facilitates Earth Observation data processing. In this work, we present results from a new Snow Processor for SNAP. We also describe physical principles behind the ...
    • A review of air-ice chemical and physical interactions (AICI): Liquids, quasi-liquids, and solids in snow 

      Bartels-Rausch, Thorsten; Jacobi, Hans-Werner; Kahan, Tara F.; Thomas, Jennie L.; Thomson, Erik S.; Abbatt, Jonathan P.D.; Ammann, Markus; Blackford, Jane R.; Bluhm, Hendrik; Boxe, Christopher S.; Dominé, Florent; Frey, Markus M.; Gladich, Ivan; Guzmán, Marcelo I.; Heger, Dominik; Huthwelker, Thomas; Klán, Petr; Kuhs, Werner F.; Kuo, Min H.; Maus, Sønke; Moussa, Samar G.; McNeill, V. Faye; Newberg, John T.; Pettersson, Jan B.C.; Roeselovà, Martina; Sodeau, John R. (Peer reviewed; Journal article, 2014-02-12)
      Snow in the environment acts as a host to rich chemistry and provides a matrix for physical exchange of contaminants within the ecosystem. The goal of this review is to summarise the current state of knowledge of physical ...
    • A revised ocean glider concept to realize Stommel's vision and supplement Argo floats 

      Bruvik, Erik Magnus; Fer, Ilker; Våge, Kjetil; Haugan, Peter M. (Journal article; Peer reviewed, 2020-02)
      This paper revisits Stommel's vision for a global glider network and the Argo design specification. A concept of floats with wings, so-called slow underwater gliders, is explored. An analysis of the energy or power consumption ...
    • The Role of Atlantic Heat Transport in Future Arctic Winter Sea Ice Loss 

      Årthun, Marius; Eldevik, Tor; Smedsrud, Lars H. (Peer reviewed; Journal article, 2019-05-14)
      During recent decades Arctic sea ice variability and retreat during winter have largely been a result of variable ocean heat transport (OHT). Here we use the Community Earth System Model (CESM) large ensemble simulation ...
    • Role of atmosphere-ocean interactions in supermodeling the tropical Pacific climate 

      Shen, Mao-Lin; Keenlyside, Noel; Bhatt, Bhuwan Chandra; Duane, Gregory (Peer reviewed; Journal article, 2017-12-29)
      The supermodel strategy interactively combines several models to outperform the individual models comprising it. A key advantage of the approach is that nonlinear improvements can be achieved, in contrast to the linear ...
    • The role of land and ocean evaporation on the variability of precipitation in the Yangtze River valley 

      Fremme, Astrid Kristine; Sodemann, Harald (Peer reviewed; Journal article, 2019-06-04)
      The Yangtze River valley (YRV) experiences large intraseasonal and interannual precipitation variability, which is mainly due to East Asian monsoon influence. The East Asian monsoon is caused by interaction of many processes ...
    • The role of the Southern Ocean in past global biogeochemical cycling 

      Morée, Anne (Doctoral thesis, 2020-04-27)
      This thesis describes several recent advances on the role of the Southern Ocean in past global biogeochemical cycling. We focus on the ocean of the Last Glacial Maximum (LGM) and the Pleistocene epoch and apply proxies of ...
    • The Role of the Stratosphere in Subseasonal to Seasonal Prediction: 1. Predictability of the Stratosphere 

      Domeisen, Daniela; Butler, Amy; Charlton-Perez, Andrew; Ayarzaguena, Blanca; Baldwin, Mark; Dunn-Sigouin, Etienne; Furtado, Jason; Garfinkel, Chaim; Hitchcock, Peter; Karpechko, Alexey; Kim, Hera; Knight, Jeff; Lang, Andrea; Lim, Eun-Pa; Marshall, Andrew; Roff, Greg; Schwartz, Chen; Simpson, Isla; Son, Seok-Woo; Taguchi, Masakazu (Journal article; Peer reviewed, 2019-11-18)
      The stratosphere has been identified as an important source of predictability for a range of processes on subseasonal to seasonal (S2S) time scales. Knowledge about S2S predictability within the stratosphere is however ...
    • The Role of the Stratosphere in Subseasonal to Seasonal Prediction: 2. Predictability Arising From Stratosphere-Troposphere Coupling 

      Domeisen, Daniela; Butler, Amy; Charlton-Perez, Andrew; Ayarzaguena, Blanca; Baldwin, Mark; Dunn-Sigouin, Etienne; Furtado, Jason; Garfinkel, Chaim; Hitchcock, Peter; Karpechko, Alexey; Kim, Hera; Knight, Jeff; Lang, Andrea; Lim, Eun-Pa; Marshall, Andrew; Roff, Greg; Schwartz, Chen; Simpson, Isla; Son, Seok-Woo; Taguchi, Masakazu (Journal article; Peer reviewed, 2020)
      The stratosphere can have a significant impact on winter surface weather on subseasonal to seasonal (S2S) timescales. This study evaluates the ability of current operational S2S prediction systems to capture two important ...
    • Role of volcanic forcing on future global carbon cycle 

      Tjiputra, Jerry; Otterå, Odd Helge (Peer reviewed; Journal article, 2011-06-16)
      Using a fully coupled global climate-carbon cycle model, we assess the potential role of volcanic eruptions on future projection of climate change and its associated carbon cycle feedback. The volcanic-like forcings are ...
    • Role of wind stress in driving SST biases in the tropical Atlantic 

      Voldoire, Aurore; Exarchou, Eleftheria; Sánchez-Gómez, Emilia; Demissie, Teferi Dejene; Deppenmeier, Anna-Lena; Frauen, Claudia; Goubanova, Katarina; Hazeleger, Wilco; Keenlyside, Noel; Koseki, Shunya; Prodhomme, Chloé; Shonk, Jonathan; Toniazzo, Thomas; Traoré, Abdoul-Khadre (Journal article; Peer reviewed, 2019-03-13)
      Coupled climate models used for long-term future climate projections and seasonal or decadal predictions share a systematic and persistent warm sea surface temperature (SST) bias in the tropical Atlantic. This study attempts ...