Blar i Geophysical Institute på tittel

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    • An unmanned aerial vehicle sampling platform for atmospheric water vapor isotopes in polar environments 

      Rozmiarek, Kevin S.; Vaughn, Bruce H.; Jones, Tyler R.; Morris, Valerie; Skorski, William B.; Hughes, Abigail G.; Elston, Jack; Wahl, Sonja; Faber, Anne-Katrine; Steen-Larsen, Hans Christian (Journal article; Peer reviewed, 2021)
      Above polar ice sheets, atmospheric water vapor exchange occurs across the planetary boundary layer (PBL) and is an important mechanism in a number of processes that affect the surface mass balance of the ice sheets. Yet, ...

    • Unmanned Aircraft Get Together: The LAPSE-RATE Campaign 

      de Boer, Gijs; Diehl, Constantin; Jacob, Jamey; Houston, Adam; Smith, Suzanne W.; Chilson, Phillip; Schmale, David; Intrieri, Janet; Pinto, J; Elston, Jack; Brus, David; Kemppinen, Osku; Clark, A; Lawrence, D.; Bailey, Sean C.C.; Sama, Michael P.; Frazier, Amy; Crick, Christopher; Natalie, Victoria; Pillar-Little, Elizabeth A.; Klein, Petra; Waugh, Sean; Lundquist, Julie K.; Barbieri, Lindsay; Kral, Stephan Thomas; Jensen, A; Dixon, Cory; Borenstein, Steve; Hesselius, Daniel; Human, Kathleen; Hall, P; Argrow, Brian; Thornberry, T; Wright, R; Kelly, James T. (Journal article; Peer reviewed, 2020)
      Members of the international community developing unmanned aircraft for atmospheric research conducted a highly successful coordinated flight week in Colorado during the summer of 2018 to collect measurements, develop ...

    • Unravelling the March 1972 northwest Greenland windstorm with high-resolution numerical simulations 

      Tollinger, Mathias; Gohm, Alexander; Jonassen, Marius Opsanger (Peer reviewed; Journal article, 2019-08-07)
      Thule Air Base in northwest Greenland experienced an extreme windstorm during the night of 8/9 March 1972. The event is not among official WMO records because the anemometer broke after recording the highest gust of 93 m s−1. ...

    • Unusual subduction zones: Case studies in Colombia and Iran 

      Zarifi, Zoya (Doctoral thesis, 2007-02-16)
      Subduction zones, usually, are plate boundaries with the highest level of seismic activity. However, the distribution of seismicity in these plate margins is not uniform in the frequency and magnitude. Some margins produce ...

    • An update to the Surface Ocean CO2 Atlas (SOCAT version 2) 

      Bakker, Dorothee C.E.; Pfeil, Benjamin; Olsen, Are; Chierici, Melissa; Fransson, Agneta; Johannessen, Truls; Lauvset, Siv Kari; Skjelvan, Ingunn; Tjiputra, Jerry (Peer reviewed; Journal article, 2014-03-07)
      The Surface Ocean CO2 Atlas (SOCAT), an activity of the international marine carbon research community, provides access to synthesis and gridded fCO2 (fugacity of carbon dioxide) products for the surface oceans. Version 2 ...

    • An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2020 

      Olsen, Are; Lange, Nico; Key, Robert M.; Tanhua, Toste; Bittig, Henry C.; Kozyr, Alexander; Alvarez, Marta; Azetsu-Scott, Kumiko; Becker, Susan; Brown, Peter; Carter, Brendan R; Da Cunha, Leticia Cotrim; Feely, Rickhard; van Heuven, Steven; Hoppema, Mario; Ishii, Masao; Jeansson, Emil; Jutterström, Sara; Landa, Camilla Stegen; Lauvset, Siv Kari; Michaelis, Patrick; Murata, Akihiko; Perez, F. Fiz; Pfeil, Gerrit Benjamin; Schirnick, Carsten; Steinfeldt, Reiner; Suzuki, Toru; Tilbrook, Bronte; Velo, Antón; Wanninkhof, Rik; Woosley, Ryan J. (Journal article; Peer reviewed, 2020)
      The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical data, with an emphasis on seawater inorganic carbon chemistry and related ...

    • An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021 

      Lauvset, Siv Kari; Lange, Nico; Tanhua, Toste; Bittig, Henry C.; Olsen, Are; Kozyr, Alex; Alvarez, Marta; Becker, Susan; Brown, Pete; Carter, Brendan R.; Da Cunha, Leticia Cotrim; Feely, Richard A; van Heuven, Steven; Hoppema, Mario; Ishii, Masao; Jeansson, Emil; Jutterström, Sara; Jones, Stephen Daniel; Karlsen, Maren Kjos; Monaco, Claire Lo; Michaelis, Patrick; Murata, Akihiko; Perez, Fiz F; Pfeil, Gerrit Benjamin; Schirnick, Carsten; Steinfeldt, Reiner; Suzuki, Toru; Tilbrook, Bronte; Velo, Antón; Wanninkhof, Rik; Woosley, Ryan J.; Key, Robert M. (Journal article; Peer reviewed, 2021)
      The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical bottle data, with an emphasis on seawater inorganic carbon chemistry and related ...

    • Upper Ocean Response to Large Wind Farm Effect in the Presence of Surface Gravity Waves 

      Paskyabi, Mostafa Bakhoday; Fer, Ilker (Peer reviewed; Journal article, 2012)
      The upper ocean response in the presence of a wind farm is studied numerically, taking into account the effect of surface gravity waves. The farm geometry is a simplified rigid rectangle with characteristic size of L aligned ...

    • Upper tropospheric cloud-radiation interaction induced by monsoon surge over the South China Sea 

      Koseki, Shunya; Fonseca, Ricardo; Koh, Tieh-Yong; Teo, Chee-Kiat (Journal article; Peer reviewed, 2023)
      We have investigated cloud formation over the South China Sea in the upper troposphere and its impacts on the radiation budget of the troposphere and ocean surface under monsoon surges using satellite and reanalysis products ...

    • Upper-ocean hydrography in the Eurasian Basin and its implication on sound speed 

      Stallemo, Astrid (Master thesis, 2022-08-15)
      The Polar Surface Water (PSW) and the Atlantic Water (AW) characteristics and their vertical extent are investigated using data from three moorings deployed in the Nansen Basin, north of Svalbard, under the Coordinated ...

    • Upper-ocean turbulence structure and ocean-ice drag coefficient estimates using an ascending microstructure profiler during the MOSAiC drift 

      Fer, Ilker; Baumann, Till Martin; Koenig, Zoe Charlotte; Muilwijk, Morven; Tippenhauer, Sandra (Journal article; Peer reviewed, 2022)
      Sea ice mediates the transfer of momentum, heat, and gas between the atmosphere and ocean. However, the under-ice boundary layer is not sufficiently constrained by observations. During the Multidisciplinary drifting ...

    • Upstream sources of the Denmark Strait Overflow: Observations from a high-resolution mooring array 

      Harden, Benjamin E.; Pickart, Robert S.; Valdimarsson, Héðinn; Våge, Kjetil; de Steur, Laura; Richards, Clark; Bahr, Frank; Torres, Dan; Børve, Eli; Jónsson, Steingrímur; Macrander, Andreas; Østerhus, Svein; Håvik, Lisbeth; Hattermann, Tore (Peer reviewed; Journal article, 2016)
      We present the first results from a densely instrumented mooring array upstream of the Denmark Strait sill, extending from the Iceland shelfbreak to the Greenland shelf. The array was deployed from September 2011 to July ...

    • Using machine learning algorithms to enhance numerical weather prediction 

      Gjøsæter, Inger Kristin Nesbø (Master thesis, 2022-11-21)
      In this master thesis machine learning algorithms have been used in an effort to enhance numerical weather prediction. The learning algorithms used are random forest to provide a no precipitation/precipitation classification, ...

    • Using the Rayleigh Distillation Framework to Investigate the Evolution of Stable Water Isotopes during a Precipitation event at the West Coast of Norway 

      Rønning, Emili Carin (Master thesis, 2023-06-01)

    • Utilizing Solar Vapour Energy by Use of Nanofluids in a Direct Absorption Solar Collector 

      Ulset, Edda Torsdottir (Master thesis, 2018-01)
      Traditional solar thermal collectors and photovoltaic (PV) systems suffer from low energy conversion efficiencies. This is mainly due to high thermal losses from overheated absorber plates or solar cells. For steam generation ...

    • UV-stråling i Norge Satellittestimater, modellestimater og bakkemålinger 

      Carlson, Thomas (Master thesis, 2005)

    • Validating Finescale Parameterizations for the Eastern Arctic Ocean Internal Wave Field 

      Baumann, Till Martin; Fer, Ilker; Schulz, Kirstin; Mohrholz, Volker (Journal article; Peer reviewed, 2023)
      In the Arctic Ocean, vertical transport of heat by turbulent mixing is ultimately coupled to the sea-ice cover, with immediate and far-reaching impacts on the climate and ecosystem. Unfortunately, direct observations of ...

    • Validation of boundary layer parameterization schemes in the Weather Research and Forecasting Model (WRF) under the aspect of offshore wind energy applications - Part II: Boundary layer height and atmospheric stability 

      Krogsæter, Olav; Reuder, Joachim (Peer reviewed; Journal article, 2015-07)
      Five different planetary boundary layer (PBL) schemes in the Weather Research and Forecasting (WRF) model have been tested with respect to their capability to model boundary layer parameters relevant for offshore wind ...

    • Validation of precipitation forecasts from the AROME numerical weather prediction model in Norway 

      Aga, Jostein Karlstrøm (Master thesis, 2022-11-21)
      High-quality precipitation forecasts are key to ensure the public and economic safety during severe precipitation events, and the process of validating these forecasts is a continuous effort. But with Norway's varied climate ...

    • Variability along the Atlantic water pathway in the forced Norwegian Earth System Model 

      Langehaug, Helene R.; Sandø, Anne Britt; Årthun, Marius; Ilicak, Mehmet (Peer reviewed; Journal article, 2018-03-27)
      The growing attention on mechanisms that can provide predictability on interannual-to-decadal time scales, makes it necessary to identify how well climate models represent such mechanisms. In this study we use a high (0.25° ...