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Blar i Geophysical Institute på tittel 
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    • Karbondynamikk i Grønlandshavet observert av en Argobøye og en 1-D Blandingsmodell 

      Sælemyr, Ingrid (Master thesis, 2023-06-02)
    • Key physical processes and their model representation for projecting climate impacts on subarctic Atlantic net primary production: A synthesis 

      Myksvoll, Mari Skuggedal; Sandø, Anne Britt; Tjiputra, Jerry; Samuelsen, Annette; Yumruktepe, Veli Caglar; Li, Camille; Mousing, Erik Askov; Bettencourt, Joao P.H.; Ottersen, Geir (Journal article; Peer reviewed, 2023)
      Oceanic net primary production forms the foundation of marine ecosystems. Understanding the impact of climate change on primary production is therefore critical and we rely on Earth System Models to project future changes. ...
    • Key Role of the Ocean Western Boundary currents in shaping the Northern Hemisphere climate 

      Omrani, Nour-Eddine; Ogawa, Fumiaki; Nakamura, Hisashi; Keenlyside, Noel; Lubis, Sandro W.; Matthes, Katja (Peer reviewed; Journal article, 2019)
      The individual impact of North Atlantic and Pacific Ocean Western Boundary Currents (OWBCs) on the tropospheric circulation has recently been studied in depth. However, their simultaneous role in shaping the hemisphere-scale ...
    • The key role of topography in altering North Atlantic atmospheric circulation during the last glacial period 

      Pausata, Francesco S. R.; Li, Camille; Wettstein, Justin; Kageyama, M.; Nisancioglu, Kerim Hestnes (Peer reviewed; Journal article, 2011-10-18)
      The Last Glacial Maximum (LGM; 21 000 yr before present) was a period of low atmospheric greenhouse gas concentrations, when vast ice sheets covered large parts of North America and Europe. Paleoclimate reconstructions and ...
    • Klimaeffektar av redusert arktisk sommarisdekke: ein modellstudie 

      Breivik, Kristin (Master thesis, 2006)
    • Knowledge Gaps and Impact of Future Satellite Missions to Facilitate Monitoring of Changes in the Arctic Ocean 

      Lucas, Sylvain; Johannessen, Johnny Andre; Cancet, Mathilde; Pettersson, Lasse H; Esau, Igor; Rheinlænder, Jonathan Winfield; Ardhuin, Fabrice; Chapron, Bertrand; Korosov, Anton; Collard, Fabrice; Herlédan, Sylvain; Olason, Einar; Ferrari, Ramiro; Fouchet, Ergane; Donlon, Craig (Journal article; Peer reviewed, 2023)
      Polar-orbiting satellite observations are of fundamental importance to explore the main scientific challenges in the Arctic Ocean, as they provide information on bio-geo-physical variables with a denser spatial and temporal ...
    • Konsepsjon, simulering og testing av en elektronisk styrt hydraulisk aktuator for styring av en motorventil 

      Torvestad, Elmer Anders Jacobsen (Master thesis, 2018-08-23)
      Denne masteroppgaven tar for seg elektrohydraulisk styring av en motorventil i en medium speed motor. Det forsøkes å utnytte en eksisterende kamaksling til å drive en pumpe som skal gi trykk til en aktuator, slik at denne ...
    • Korrigering av modellestimert nedbør ved hjelp av historisk data. 

      Aabrekk, Mariann (Master thesis, 2010-06-01)
      I denne oppgåva er det sett på moglegheit for betring av modellestimert nedbør ved å korrigere modellerte nedbørsestimat ved hjelp av fleire ulike korreksjonsfaktorar som tar omsyn til ulike vêrtypar og nedbørsintensiteten. ...
    • Laboratory Experiments on Internal Solitary Waves in Ice-Covered Waters 

      Carr, Magda; Sutherland, P.; Haase, A.; Evers, K.-U.; Fer, Ilker; Jensen, Atle; Kalisch, Henrik; Berntsen, Jarle; Parau, E.; Thiem, Ø.; Davies, P.A. (Peer reviewed; Journal article, 2019)
      Internal solitary waves (ISWs) propagating in a stably stratified two‐layer fluid in which the upper boundary condition changes from open water to ice are studied for grease, level, and nilas ice. The ISW‐induced current ...
    • Laboratory study of frazil ice accumulation under wave conditions 

      De La Rosa, Sara; Maus, Sønke (Peer reviewed; Journal article, 2012-02-09)
      Ice growth in turbulent seawater is often accompanied by the accumulation of frazil ice crystals at its surface, forming a grease ice layer. The thickness and volume fraction of this ice layer play an important role in ...
    • Laboratory study of initial sea-ice growth: properties of grease ice and nilas 

      Naumann, Ann-Kristin; Notz, Dirk; Håvik, Lisbeth; Sirevaag, Anders (Peer reviewed; Journal article, 2012-07-10)
      We investigate initial sea-ice growth in an ice-tank study by freezing an NaCl solution of about 29 g kg−1 in three different setups: grease ice grew in experiments with waves and in experiments with a current and wind, ...
    • Lagrangian matches between observations from aircraft, lidar and radar in a warm conveyor belt crossing orography 

      Boettcher, Maxi; Schäfler, Andreas; Sprenger, Michael; Sodemann, Harald; Kaufmann, Stefan; Voigt, Christiane; Schlager, Hans; Summa, Donato; DI Girolamo, Paolo; Nerini, Daniele; Germann, Urs; Wernli, Heini (Journal article; Peer reviewed, 2021)
      Warm conveyor belts (WCBs) are important airstreams in extratropical cyclones, often leading to the formation of intense precipitation and the amplification of upper-level ridges. This study presents a case study that ...
    • Lagrangian Measurement of Waves and Near Surface Turbulence from Acoustic Instruments 

      Bakhoday Paskyabi, Mostafa; Bryhni, Helge Thomas; Reuder, Joachim; Fer, Ilker (Peer reviewed; Journal article, 2015-12-02)
      We demonstrate high-resolution measurements of upper ocean flow and turbulence using a Lagrangian drifter. A spherical buoy as a quasi-wave following drifter mitigate the contaminations induced by wave orbital velocities ...
    • The Lagrangian particle dispersion model FLEXPART version 10.4 

      Pisso, Ignacio; Sollum, Espen; Grythe, Henrik; Kristiansen, Nina Iren; Cassiani, Massimo; Eckhardt, Sabine; Arnold, Delia; Morton, Don; Thompson, Rona Louise; Zwaaftink, Christine Groot; Evangeliou, Nikolaos; Sodemann, Harald; Haimberger, Leopold; Henne, Stephan; Brunner, Dominik; Burkhart, John; Fouilloux, Anne Claire; Brioude, Jerome; Philipp, Anne; Seibert, Petra; Stohl, Andreas (Peer reviewed; Journal article, 2019-12-02)
      The Lagrangian particle dispersion model FLEXPART in its original version in the mid-1990s was designed for calculating the long-range and mesoscale dispersion of hazardous substances from point sources, such as those ...
    • Land Surface Data Assimilation of Satellite Derived Surface Soil Moisture : Towards an Integrated Representation of the Arctic Hydrological Cycle 

      Blyverket, Jostein (Doctoral thesis, 2019-10-21)
      The ability to accurately determine soil water content (soil moisture) over large areas of the Earth’s surface has potential implications in meteorology, hydrology, water and natural hazards management. The advent of ...
    • Langmuir Turbulence in the HYCOM Ocean Model 

      Malila, Mika Petteri (Master thesis, 2017)
      The impact of parameterising the turbulent mixing induced by surface wave-driven Langmuir turbulence is investigated for a basin-scale configuration of the hybrid-coordinate ocean circulation model HYCOM. Two-year, non-data ...
    • Large decadal changes in air-sea CO2 fluxes in the Caribbean Sea 

      Wanninkhof, Rik; Triñanes, Joaquin A; Park, Guen-Ha; Gledhill, Dwight K.; Olsen, Are Christian Sviggum (Peer reviewed; Journal article, 2019)
      Sixteen years of surface water CO2 data from autonomous systems on cruise ships sailing in the Caribbean Sea and Western North Atlantic show marked changes on interannual timescales. The measured changes in fugacity (≈partial ...
    • Large-eddy simulation of radiation fog with comprehensive two-moment bulk microphysics: Impact of different aerosol activation and condensation parameterizations 

      Schwenkel, Johannes; Maronga, Bjørn (Peer reviewed; Journal article, 2019-05-29)
      In this paper we study the influence of the cloud microphysical parameterization, namely the effect of different methods for calculating the supersaturation and aerosol activation, on the structure and life cycle of radiation ...
    • Large-Scale Atmospheric Circulation Variability and its Impacts on the Nordic Seas Ocean Climate - a Review. In: The Nordic Seas: An Integrated Perspective 

      Furevik, Tore; Nilsen, Jan Even Øie (Geophysical Monograph Series;158, Chapter, 2005)
      The large-scale atmospheric circulation and its impacts on the Nordic Seas ocean climate are reviewed. The dominant factors for the atmospheric variability are the Icelandic low and the Azores high, determining the strength ...
    • Large‐scale regional model biases in the extra‐tropical North Atlantic storm track and impacts on downstream precipitation 

      Pontoppidan, Marie Louise Nielsen; Kolstad, Erik Wilhelm; Sobolowski, Stefan Pieter; Sorteberg, Asgeir; Changhai, Liu; Rasmussen, Roy (Peer reviewed; Journal article, 2019)
      Global climate models have circulation biases that the community aims to reduce, for instance through high‐resolution dynamical downscaling. We used the Weather Research and Forecasting model (WRF) to downscale both ...

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