Now showing items 625-644 of 1287

    • Long-term variability of dust events in Iceland (1949-2011) 

      Dagsson-Waldhauserova, Pavla; Arnalds, Olafur; Ólafsson, Haraldur (Peer reviewed; Journal article, 2014-12-16)
      The long-term frequency of atmospheric dust observations was investigated for the southern part of Iceland and interpreted together with earlier results obtained from northeastern (NE) Iceland (Dagsson-Waldhauserova et ...
    • Loop current variability as trigger of coherent gulf stream transport anomalies 

      Hirschi, Joël J.-M.; Frajka-Williams, Eleanor; Blaker, Adam T; Sinha, Bablu; Coward, Andrew; Hyder, Pat; Biastoch, Arne; Böning, Claus; Barnier, Bernard; Penduff, Thierry; Garcia, Ixetl; Fransner, Filippa; Madec, Gurvan (Journal article; Peer reviewed, 2019)
      Satellite observations and output from a high-resolution ocean model are used to investigate how the Loop Current in the Gulf of Mexico affects the Gulf Stream transport through the Florida Straits. We find that the expansion ...
    • Loss of sea ice during winter north of Svalbard 

      Onarheim, Ingrid Husøy; Smedsrud, Lars Henrik; Ingvaldsen, Randi; Nilsen, Frank (Peer reviewed; Journal article, 2014-06-05)
      Sea ice loss in the Arctic Ocean has up to now been strongest during summer. In contrast, the sea ice concentration north of Svalbard has experienced a larger decline during winter since 1979. The trend in winter ice area ...
    • Low Level Jet Streams at the Sea Ice Edge - Numerical Simulations using WRF 

      Keiderling, Stefan (Master thesis, 2013-06-03)
      The goal of the presented thesis is to investigate the formation of low level jets at the sea ice edge. Differential heating creates very sharp fronts at the ice edge. A transversal circulation, initiated by altered pressure ...
    • Low Level Jets over the Southern North Sea 

      Wagner, David; Steinfeld, Gerald; Witha, Björn; Wurps, Hauke; Reuder, Joachim (Peer reviewed; Journal article, 2019-12-02)
      An extensive analysis of Low Level Jets (LLJs) over the Southern North Sea is presented. The study is based on observational data from a wind LiDAR and a passive microwave radiometer, operated from May 2015 to October 2016 ...
    • A low-cost autonomous rover for polar science 

      Hoffman, Andrew; Christian Steen-Larsen, Hans; Christianson, Knut; Hvidberg, Christine (Peer reviewed; Journal article, 2019-06-11)
      We present the developmental considerations, design, and deployment of an autonomous modular terrestrial rover for ice-sheet exploration that is inexpensive, easy to construct, and allows for instrumentation customization. ...
    • Low-level jet height’s impact on wind turbine loads: A case study 

      Ahmed, Fahim Masud (Master thesis, 2023-06-01)
      Over the years, wind turbines have been steadily increasing in size, with newer models boasting larger dimensions. For instance, the diameter of an installed prototype offshore wind turbine in late 2022 was over 200 m, ...
    • The Madden-Julian Oscillation in a warmer world 

      Chang, Chiung-Wen June; Tseng, Wan-Ling; Huang-Hsiung, Hsu; Keenlyside, Noel; Tsuang, Ben-Jei (Peer reviewed; Journal article, 2015-07)
      Global warming's impact on the Madden-Julian Oscillation (MJO) is assessed using one of the few models capable in reproducing its key features. In a warmer climate predicted for the end of the century, the MJO increases ...
    • Magnitude and Origin of the Anthropogenic CO2 Increase and the 13C Suess Effect in the Nordic Seas since 1981 

      Olsen, Are; Abdirahman, Omar M.; Bellerby, Richard G. J.; Johannessen, Truls; Ninnemann, Ulysses Silas; Brown, Kelly R.; Olsson, K. Anders; Olafsson, Jon; Nondal, Gisle; Kivimäe, Caroline; Kringstad, Solveig; Neill, Craig; Olafsdottir, Solveig (Peer reviewed; Journal article, 2006-09-29)
      This study evaluates the anthropogenic changes of CO2 (∆Cant) and δ13C (∆δ13Cant) in the Nordic seas, the northern limb of the Atlantic Meridional Overturning Circulation, that took place between 1981 and 2002/03. The ...
    • Mapping the fugacity of CO2 in the Nordic Seas and the northern North Atlantic Ocean 

      Kvæstad, Elise (Master thesis, 2013-12-20)
      Self organizing maps (SOMs) have been used to estimate seawater fugacity of CO2 (fCO2) distribution in the Nordic Seas and the northern North Atlantic Ocean for 2005-2007. Four maps were produced for each region using ...
    • MARINE PLASTIC DRIFT FROM THE MEKONG RIVER TO SOUTHEAST ASIA 

      Nguyen Manh, Dung (Master thesis, 2022-11-21)
      Plastic waste has been identified as a major worldwide environmental issue (Sun et al., 2021; Zhang et al., 2020). Jambeck et al. (2015) estimated that between 4.8 and 12.7 million tons of plastic waste enters the ocean ...
    • Marine Plastic Drift from the Mekong River to Southeast Asia 

      Nguyen, Dung M.; Hole, Lars Robert; Breivik, Øyvind; Nguyen, Thuy B.; Pham, Ngoc Kh. (Journal article; Peer reviewed, 2023-04-26)
      Southeast Asia is the world’s most polluted area in terms of marine plastics. The Mekong River is one of the largest rivers in the area, and ranked as somewhere between the 8th- and 11th-biggest contributor to plastics in ...
    • Marine Wind and Wave Height Trends at Different ERA-Interim Forecast Ranges 

      Aarnes, Ole Johan; Abdalla, Saleh; Bidlot, Jean-Raymond; Breivik, Øyvind (Peer reviewed; Journal article, 2015-01-15)
      Trends in marine wind speed and significant wave height are investigated using the global reanalysis ERA-Interim over the period 1979–2012, based on monthly-mean and monthly-maximum data. Besides the traditional reanalysis, ...
    • Marine-based multiproxy reconstruction of Atlantic multidecadal variability 

      Svendsen, Lea; Hetzinger, Steffen; Keenlyside, Noel; Gao, Yongqi (Peer reviewed; Journal article, 2014-02-28)
      Atlantic multidecadal variability (AMV) is known to impact climate globally, and knowledge about the persistence of AMV is important for understanding past and future climate variability, as well as modeling and assessing ...
    • Mass balance of Nyainqen Tanglha glacier, Tibet, 1977 to 2001, derived by topographical maps and satellite images 

      Dong, Cai (Master thesis, 2004)
      NyainQen TangLha Glacier plays an important role in the Tibetan plateau’s climate system. Because of high altitude, steeply sloping terrain and difficult access, regular, systematic surveys of glacial variation are almost ...
    • Mass balance of the Greenland Ice Sheet from 1992 to 2018 

      Shepherd, Andrew; Ivins, Erik; Rignot, Eric; Smith, Ben; Van Den Broeke, Michiel; Velicogna, Isabella; Whitehouse, Pippa; Briggs, Kate; Joughin, Ian; Krinner, Gerhard; Nowicki, Sophie; Payne, Tony; Scambos, Ted; Schlegel, Nicole; Geruo, A; Agosta, Cécile; Ahlstrøm, Andreas; Babonis, Greg; Barletta, Valentina; Bjørk, Anders A.; Blazquez, Alejandro; Bonin, Jennifer; Colgan, William; Csatho, Beata; Cullather, Richard; Engdahl, Marcus E.; Felikson, Denis; Fettweis, Xavier; Forsberg, Rene; Hogg, Anna E.; Hubert, Gallee; Gardner, Alex; Gilbert, Lin; Gourmelen, Noel; Groh, Andreas; Gunter, Brian; Hanna, Edward; Harig, Christopher; Helm, Veit; Horvath, Alexander; Horwath, Martin; Khan, Shfaqat; Kjeldsen, Kristian K.; Hannes, Konrad; Langen, Peter L.; Lecavalier, Benoit; Loomis, Bryant; Luthcke, Scott; McMillan, Malcolm; Melini, Daniele; Mernild, Jacob Sebastian Haugaard; Mohajerani, Yara; Moore, Philip; Mottam, Ruth; Mouginot, Jérémie; Moyano, Gorka; Muir, Alan; Nagler, Thomas; Nield, Grace; Nilsson, Johan; Noel, Brice; Otosaka, Ines; Pattle, Mark E.; Peltier, Richard W.; Pie, Nadège; Rietbroek, Roelof; Rott, Helmut; Sørensen, Louise Sandberg; Sasgen, Ingo; Save, Himanshu; Scheuchl, Bernd; Schrama, Ernst; Schröder, Ludwig; Seo, Ki-Weon; Simonsen, Sebastian B.; Slater, Thomas; Spada, Giorgio; Sutterley, Tyler; Talpe, Matthieu; Tarasov, Lev; Willem, Jan van de Berg; Van Der Wal, Wouter; Van Wessem, Melchior; Vishwakarma, Barmha Dutt; Wiese, David; Wilton, David; Wagner, Thomas; Wouters, Bert; Wuite, Jan (Journal article; Peer reviewed, 2019-12-10)
      The Greenland Ice Sheet has been a major contributor to global sea-level rise in recent decades1,2, and it is expected to continue to be so3. Although increases in glacier flow4,5,6 and surface melting7,8,9 have been driven ...
    • Målt og Modellert Globalstråling ved Ekofisk og i Nordområdene 

      Henden, Amelie (Master thesis, 2011-06-01)
      I dette arbeidet er globalstrålingsdata fra Ekofisk, Arktis og fastlandsstasjoner i Norge og Sverige studert. Stasjonene ligger mellom 56°N og 75°N, og all data er hentet fra perioden 2005 til og med 2010. Målinger i Arktis ...
    • Målt og modellert UV-stråling i Bergen 

      Sætre, Ottar (Master thesis, 2006)
    • Mean structure and seasonality of the Norwegian Atlantic Front Current along the Mohn Ridge from repeated glider transects 

      Bosse, Anthony; Fer, Ilker (Peer reviewed; Journal article, 2019)
      The poleward flow of Atlantic Water in the Nordic Seas forms the upper limb of the meridional overturning circulation driving an important heat transport. The Norwegian Atlantic Front Current along the Mohn Ridge between ...
    • Measured volume, heat, and salt fluxes from the Atlantic to the Arctic Mediterranean 

      Østerhus, Svein; Turrell, William R.; Jónsson, Steingrímur; Hansen, Bogi (Journal article, 2005-04-07)
      The flow of warm and saline Atlantic water towards the Arctic crosses the Greenland-Scotland Ridge in three current branches. Since the mid 1990's, extensive monitoring with quasi-permanent moorings and regular CTD cruises ...