Geophysical Institute: Nye registreringer

Viser treff 21-40 av 1223

    • Atmospheric Climatologies Over Isfjorden, Svalbard 

      Frank, Lukas; Jonassen, Marius Opsanger; Skogseth, Ragnheid; Vihma, Timo Pekka (Journal article; Peer reviewed, 2023)
      The Isfjorden region at the west coast of Spitsbergen is the most easily accessible area in the Svalbard Archipelago, making it a perfect outdoor laboratory for Arctic research. Due to its location in the high Arctic ...

    • The Arctic Fjord Breeze: Characteristics of a Combined Sea Breeze and Valley Wind in a Svalbard Fjord Valley 

      Henkies, Matthias Markus; Høyland, Knut Vilhelm; Shestov, Aleksey; Duscha, Christiane Anabell; Sjöblom, Anna (Journal article; Peer reviewed, 2023)
      Thermally-driven circulations are a frequent meteorological phenomenon in complex Arctic terrain, but the Arctic fjord breeze, a combined sea-breeze and up-valley wind, has received little attention. A field campaign was ...

    • The role of Rossby waves in polar weather and climate 

      Woollings, Tim; Li, Camille; Drounard, Marie; Dunn-Sigouin, Etienne; Elmestekawy, Karim; Hell, Momme; Hoskins, Brian; Mbengue, Cheikh; Patterson, Matthew; Spengler, Thomas (Journal article; Peer reviewed, 2023)
      Recent Arctic warming has fuelled interest in the weather and climate of the polar regions and how this interacts with lower latitudes. Several interesting theories of polar-midlatitude linkages involve Rossby wave propagation ...

    • A general framework to obtain seamless seasonal–directional extreme individual wave heights—Showcase Ekofisk 

      Bohlinger, Patrik; Economou, Theodoros; Aarnes, Ole Johan; Malila, Mika Petteri; Breivik, Øyvind (Journal article; Peer reviewed, 2023)
      Extreme wave climate provides the basis for safe design of offshore structures and is crucial for planning and executing offshore operations. Covariate modeling of extremes significantly enriches and improves estimates of ...

    • ChemicalDrift 1.0: an open-source Lagrangian chemical-fate and transport model for organic aquatic pollutants 

      Aghito, Shankar Manuel; Calgaro, Loris; Dagestad, Knut-Frode; Ferrarin, Christian; Marcomini, Antonio; Breivik, Øyvind; Hole, Lars Robert (Journal article; Peer reviewed, 2023)
      A new model for transport and fate of chemicals in the aquatic environment is presented. The tool, named ChemicalDrift, is integrated into the open-source Lagrangian framework OpenDrift and is hereby presented for organic ...

    • The effects of spatial and temporal variations in spawning on offspring survival in Northeast Arctic cod 

      Endo, Clarissa; Skogen, Morten D.; Stige, Leif Christian; Hjøllo, Solfrid Sætre; Vikebø, Frode Bendiksen (Journal article; Peer reviewed, 2024)
      Climate change and harvesting result in temporal and spatial changes and variability in spawning, and thus in offspring ambient drift conditions. As a result, variable survival of offspring and thereby in recruitment are ...

    • En hydrografisk undersøkelse i Grønlandshavet i april 1980 

      Golmen, Lars G. (Master thesis, 1983)
      I april 1980 blei det foretatt et tokt med M/S ‘Polarsirkel’ til de sentrale delene av Grønlandshavet, hvor i alt 89 CTD-stasjoner blei tatt. De hydrografiske dataene fra dette toktet har i denne hovedfagsoppgaven blitt ...

    • Arctic Wintertime Sea Ice Breakup Events - Detection and Evolution 

      Ordahl, Johanne (Master thesis, 2024-06-03)
      Openings in the Arctic sea ice give rise to strong localized heat fluxes from the ocean to the atmosphere, causing ocean mixing and potentially leading to new sea ice growth. Despite the increased attention on sea ice ...

    • Optimization Model for Installation Logistic of Offshore Wind Farms 

      Nygård, Mari Emilie Lima (Master thesis, 2024-06-03)
      This thesis presents the development and application of a Mixed Integer Linear Programming (MILP) model for optimizing the logistics of offshore wind turbine installations. The objective is to identify strategies that not ...

    • An Assessment of CO2 Uptake in the Arctic Ocean From 1985 to 2018 

      Yasunaka, Sayaka; Manizza, Manfredi; Terhaar, Jens; Olsen, Are; Yamaguchi, Ryohei; Landschützer, Peter; Watanabe, Eiji; Carroll, Dustin; Adiwira, Hanani; Müller, Jens Daniel; Hauck, Judith (Journal article; Peer reviewed, 2023)
      As a contribution to the Regional Carbon Cycle Assessment and Processes phase 2 (RECCAP2) project, we present synthesized estimates of Arctic Ocean sea-air CO2 fluxes and their uncertainties from surface ocean pCO2-observation ...

    • On the Oceanic and Atmospheric Mechanisms Driving the Basal Melting of Fimbulisen Ice Shelf, East Antarctica 

      Lauber, Julius (Doctoral thesis, 2024-06-13)
      Den fremtidige massebalansen til innlandsisen i Øst-Antarktis er den største usikkerheten i prognoser om global havnivåstigning. Et betydelig bidrag til tapet av isen kommer fra oseanisk smelting av isbremmer, de flytende ...

    • Ocean wave tracing v.1: a numerical solver of the wave ray equations for ocean waves on variable currents at arbitrary depths 

      Halsne, Trygve; Christensen, Kai Håkon; Hope, Gaute; Breivik, Øyvind (Journal article; Peer reviewed, 2023)
      Lateral changes in the group velocity of waves propagating in oceanic or coastal waters cause a deflection in their propagation path. Such refractive effects can be computed given knowledge of the ambient current field ...

    • Wave modulation by strong currents: A study in the Lofoten Maelstrom and surrounding areas 

      Halsne, Trygve (Doctoral thesis, 2024-06-07)
      Bølger og strøm – allestedsnærværende trekk ved havet – er i en konstant tilstand av gjensidig vekselvirkning. Disse prosessene forårsaker sterkt inhomogene sjøtilstander. Samspillet dem imellom regulerer utvekslingsprosesser ...

    • 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 ...

    • Fair Winds and Following Seas Remotely: Modifying Perceptions of Fieldwork as a Requirement in Marine Science to Aid in Diversifying the Discipline 

      Nousek-McGregor, Anna; Fisher, Ben; Baker, Chelsey A.; Robinson, Carol; Damerell, Gillian Mary; Liszka, Cecilia M.; Fielding, Sophie; Muschitiello, Pilvi (Journal article; Peer reviewed, 2023)

    • Global Carbon Budget 2023 

      Friedlingstein, Pierre; O'Sullivan, Michael; Jones, Matthew W.; Andrew, Robbie M.; Bakker, Dorothee C. E.; Hauck, Judith; Landschutzer, Peter; Le Quéré, Corinne; Luijkx, Ingrid T.; Peters, Glen Philip; Peters, Wouter; Pongratz, Julia; Schwingshackl, Clemens; Sitch, Stephen; Canadell, Josep G; Ciais, Philippe; Jackson, Robert B; Alin, Simone R.; Anthoni, Peter; Barbero, Leticia; Bates, Nicholas R.; Becker, Meike (Journal article, 2023)
      Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate is critical to better understand the global carbon ...

    • Operational modelling to assess advective harmful algal bloom development and its potential to impact aquaculture 

      Dees, Paul; Dale, Andrew; Callum, Whyte; Beth, Mouat; Keith, Davidson (Journal article; Peer reviewed, 2023)
      A particle tracking model is described and used to explore the role of advection as the source of harmful algal blooms that impact the Shetland Islands, where much of Scotland's aquaculture is located. The movement of ...

    • Investigation of offshore wind turbine wakes by numerical modeling and full-scale measurements 

      Krutova, Maria (Doctoral thesis, 2024-04-30)
      Bak en vindturbin rotor som trekker kinetisk energi ut fra luftstrømmen, blir strømningsforholdene endret. Dette området kalles vindturbinens vake. Vaken er karakterisert av redusert vindhastighet og økt turbulensintensitet. ...

    • Still Arctic? — The changing Barents Sea 

      Gerland, Sebastian; Ingvaldsen, Randi Brunvær; Reigstad, Marit; Sundfjord, Arild; Bogstad, Bjarte; Chierici, Melissa; Hop, Haakon; Renaud, Paul Eric; Smedsrud, Lars Henrik; Stige, Leif Christian; Årthun, Marius; Berge, Jørgen; Bluhm, Bodil Annikki Ulla Barbro; Borgå, Katrine; Bratbak, Gunnar; Divine, Dmitry V; Eldevik, Tor; Eriksen, Elena; Fer, Ilker; Fransson, Agneta; Gradinger, Rolf Rudolf; Granskog, Mats A.; Haug, Tore; Husum, Katrine; Johnsen, Geir; Jonassen, Marius Opsanger; Jørgensen, Lis Lindal; Kristiansen, Svein; Larsen, Aud; Lien, Vidar Surén; Lind, Sigrid; Lindstrøm, Ulf Ove; Mauritzen, Cecilie; Melsom, Arne; Mernild, Sebastian H.; Müller, Malte; Nilsen, Frank; Primicerio, Raul; Søreide, Janne; van der Meeren, Gro Ingleid; Wassmann, Paul (Journal article; Peer reviewed, 2023)
      The Barents Sea is one of the Polar regions where current climate and ecosystem change is most pronounced. Here we review the current state of knowledge of the physical, chemical and biological systems in the Barents Sea. ...

    • Characterizing the convective boundary layer with wind-profiling and scanning Doppler lidar 

      Duscha, Christiane (Doctoral thesis, 2024-04-22)
      Konveksjon har stor innvirkning på strukturen og utviklingen av det atmosfæriske grenselaget. Det er imidlertid utfordrende å måle de karakteristiske lengde- og tidsskalaene ved hjelp av konvensjonelle meteorologiske ...