Now showing items 920-939 of 1275

    • Rapid changes in the Subpolar Gyre based on an Ocean General Circulation Model 

      Blesvik, Torgeir Hauge (Master thesis, 2013-06-03)
      Data from the ocean component of the Norwegian Earth System Model has been analyzed for the period 1960-2008. Most attention is given to the Subpolar Gyre, which strength and spatial extensiveness is understood to have ...
    • Rapid fCO2 rise in the northern Barents Sea and Nansen Basin 

      Ericson, Ylva; Fransson, Agneta; Chierici, Melissa; Jones, Elizabeth Marie; Skjelvan, Ingunn; Omar, Abdirahman; Olsen, Are; Becker, Meike (Journal article; Peer reviewed, 2023)
      Maps of surface water fugacity of CO2 (fCO2) over eastern Fram Strait, south-western Nansen Basin, and the north-western Barents Sea (73–84°N, 5–46°E) from September 1997 to December 2020 were made and used to investigate ...
    • Rapid response of the Norwegian Atlantic Slope Current to wind forcing 

      Brown, Nicola; Mauritzen, Cecilie; Li, Camille; Madonna, Erica; Isachsen, Pål Erik; Lacasce, Joseph Henry (Journal article; Peer reviewed, 2023)
      We explore drivers of variability in the Norwegian Atlantic Slope Current, which carries relatively warm Atlantic Water toward the Barents Sea and Arctic Ocean, using Copernicus Marine Environment Monitoring Service (CMEMS) ...
    • Rapid sea ice changes in the future Barents Sea 

      Rieke, Ole; Årthun, Marius; Dörr, Jakob Simon (Journal article; Peer reviewed, 2023)
      Observed and future winter Arctic sea ice loss is strongest in the Barents Sea. However, the anthropogenic signal of the sea ice decline is superimposed by pronounced internal variability that represents a large source of ...
    • Rapid water temperature variations at the northern shelf of the Yellow Sea 

      Asplin, Lars; Lin, Fan; Budgell, Paul; Strand, Øivind (Journal article; Peer reviewed, 2021-05-06)
      During summer, there is great spatial variability in bottom water temperature on the northern shelf of the Yellow Sea. This variability is associated with a thermal front along the shelf. Oscillatory currents from semidiurnal ...
    • Recent and future changes of the Arctic sea-ice cover 

      Smedsrud, Lars Henrik; Sorteberg, Asgeir; Kloster, Kjell (Peer reviewed; Journal article, 2008)
      The present and future state of the Arctic sea ice cover is explored using new observations and a coupled one dimensional air–sea–ice model. Updated satellite observations of Fram Strait ice-area export show an increase ...
    • Recent applications and potential of near-term (interannual to decadal) climate predictions 

      O'Kane, Terence J.; Scaife, Adam A.; Kushnir, Yochanan; Brookshaw, Anca; Buontempo, Carlo; Carlin, David; Connell, Richenda K.; Doblas-Reyes, Francisco; Dunstone, Nick; Förster, Kristian; Graça, Antonio; Hobday, Alistair J.; Kitsios, Vassili; van der Laan, Larissa; Lockwood, Julia; Merryfield, William J.; Paxian, Andreas; Payne, Mark R.; Reader, M. Catherine; Saville, Geoffrey R.; Smith, Doug; Solaraju-Murali, Balakrishnan; Caltabiano, Nico; Carman, Jessie; Hawkins, Ed; Keenlyside, Noel Sebastian; Kumar, Arun; Matei, Daniela; Pohlmann, Holger; Power, Scott; Raphael, Marilyn; Sparrow, Michael; Wu, Bo (Journal article; Peer reviewed, 2023)
      Following efforts from leading centres for climate forecasting, sustained routine operational near-term climate predictions (NTCP) are now produced that bridge the gap between seasonal forecasts and climate change projections ...
    • Recent drought and precipitation tendencies in Ethiopia 

      Viste, Ellen Marie; Korecha, Diriba; Sorteberg, Asgeir (Peer reviewed; Journal article, 2013-05)
      In 2011, drought in the Horn of Africa again made news headlines. This study aims to quantify the meteorological component of this and other drought episodes in Ethiopia since 1971. A monthly precipitation data set for 14 ...
    • Recent Hadley circulation strengthening: a trend or multidecadal variability? 

      Zaplotnik, Žiga; Pikovnik, Matic; Boljka, Lina (Journal article; Peer reviewed, 2022)
      This study explores the possible drivers of the recent Hadley circulation strengthening in the modern reanalyses. Predominantly, two recent generations of reanalyses provided by the European Centre for Medium-Range Weather ...
    • Recent Intensified Influence of the Winter North Pacific Sea Surface Temperature on the Mei-Yu Withdrawal Date 

      Li, Hua; He, Shengping; Fan, Ke; Liu, Yong; Yuan, Xing (Journal article; Peer reviewed, 2021)
      The mei-yu withdrawal date (MWD) is a crucial indicator of flood/drought conditions over East Asia. It is characterized by a strong interannual variability, but its underlying mechanism remains unknown. We investigated the ...
    • Recent weakening in the winter ENSO teleconnection over the North Atlantic‑European region 

      Ivasic, Sara; Herceg-Bulic, Ivana; King, Martin Peter (Journal article; Peer reviewed, 2021)
      New observational evidence for variability of the atmospheric response to wintertime El Niño-Southern Oscillation (ENSO) is found. Using different approaches and datasets, a weakening in the recent ENSO teleconnection over ...
    • Recent wind driven high sea ice area export in the Fram Strait contributes to Arctic sea ice decline 

      Smedsrud, Lars Henrik; Sirevaag, Anders; Kloster, Kjell; Sorteberg, Asgeir; Sandven, Stein (Peer reviewed; Journal article, 2011-10-14)
      Arctic sea ice area has been decreasing for the past two decades. Apart from melting, the southward drift through Fram Strait is the main ice loss mechanism. We present high resolution sea ice drift data across 79° N from ...
    • Recommendation on use of wind lidars 

      Reuder, Joachim; Cheynet, Etienne; Clifton, Andrew; van Dooren, Marijn Floris; Gottschall, Julia; Jakobsen, Jasna Bogunovic; Mann, Jakob; Palma, Jose; Schlipf, David; Sjøholm, Mikael; Trujillo, Juan-Jose; Thobois, Ludovic; Würth, Ines; Zasso, Alberto (Research report, 2021)
    • Reconciling conflicting evidence for the cause of the observed early 21st century Eurasian cooling 

      Outten, Stephen; Li, Camille; King, Martin Peter; Suo, Lingling; Siew, Yu Feng; Cheung, Hoffman; Davy, Richard; Dunn-Sigouin, Etienne; Furevik, Tore; He, Shengping; Madonna, Erica; Sobolowski, Stefan Pieter; Spengler, Thomas; Woollings, Tim (Journal article; Peer reviewed, 2023)
      It is now well established that the Arctic is warming at a faster rate than the global average. This warming, which has been accompanied by a dramatic decline in sea ice, has been linked to cooling over the Eurasian ...
    • Reconciling Observation and Model Trends in North Atlantic Surface CO2 

      Lebehot, Alice; Halloran, Paul R.; Watson, Andrew J.; McNeall, Doug; Ford, David A; Landschützer, Peter; Lauvset, Siv Kari; Schuster, Ute (Peer reviewed; Journal article, 2019)
      The North Atlantic Ocean is a region of intense uptake of atmospheric CO2. To assess how this CO2 sink has evolved over recent decades, various approaches have been used to estimate basin‐wide uptake from the irregularly ...
    • 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 ...
    • Reconstructing winter climate anomalies in the Euro-Atlantic sector using circulation patterns 

      Madonna, Erica; Battisti, David; Li, Camille; White, Rachel H. (Journal article; Peer reviewed, 2021)
      The efficacy of Euro-Atlantic circulation regimes for estimating wintertime climate anomalies (precipitation and surface temperature) over Europe is assessed. A comparison of seasonal climate reconstructions from two ...
    • Reconstruction of Glacier Mass Balance and Sensitivity Tests to Climate Change: A case study of Ålfotbreen and Nigardsbreen 

      Wangdui, Wangdui (Master thesis, 2011-11-30)
      A physically-based one dimensional CROCUS snow model was applied to simulate the surface mass balances of Ålfotbreen (1964-2009) and Nigardsbreen (1962-2009) in southern Norway. The required hourly meteorological input ...
    • The red-sky enigma over Svalbard in December 2002 

      Sigernes, Fred; Lloyd, N.; Lorentzen, Dag Arne; Neuber, R.; Hoppe, U.-P.; Degenstein, D.; Shumilov, N.; Moen, Jøran Idar; Gjessing, Yngvar; Havnes, Ove; Skartveit, Arvid; Raustein, Elmer; Ørbæk, J.B.; Deehr, CS (Peer reviewed; Journal article, 2005)
      On 6 December 2002, during winter darkness, an extraordinary event occurred in the sky, as viewed from Longyearbyen (78° N, 15° E), Svalbard, Norway. At 07:30 UT the southeast sky was surprisingly lit up in a deep red ...
    • A Regime View of ENSO Flavors Through Clustering in CMIP6 Models 

      Ayar, Pradeebane Vaittinada; Battisti, David Stephen; Li, Camille; King, Martin; Vrac, Mathieu; Tjiputra, Jerry (Journal article; Peer reviewed, 2023)
      El Niño-Southern Oscillation (ENSO) flavors in the tropical Pacific are studied from a regime perspective. Five recurring spatial patterns or regimes characterizing the diversity of ENSO are established using a clustering ...