Geophysical Institute: Nye registreringer

Viser treff 101-120 av 1321

    • A dataset of direct observations of sea ice drift and waves in ice 

      Rabault, Jean; Müller, Malte; Voermans, Joey; Brazhnikov, Dmitry; Turnbull, Ian; Marchenko, Aleksey; Biuw, Martin; Nose, Takehiko; Waseda, Takuji; Johansson, Malin; Breivik, Øyvind; Sutherland, Graig; Hole, Lars Robert; Johnson, Mark; Jensen, Atle; Gundersen, Olav; Kristoffersen, Yngve; Babanin, Alexander; Tedesco, Paulina Souza; Christensen, Kai Håkon; Kristiansen, Martin; Hope, Gaute; Kodaira, Tsubasa; Martins de Aguiar, Victor Cesar; Taelman, Catherine Cecilia A; Quigley, Cornelius Patrick; Filchuk, Kirill; Mahoney, Andrew R. (Journal article; Peer reviewed, 2023)
      Variability in sea ice conditions, combined with strong couplings to the atmosphere and the ocean, lead to a broad range of complex sea ice dynamics. More in-situ measurements are needed to better identify the phenomena ...

    • The Departure from Mixed-Layer Similarity During the Afternoon Decay of Turbulence in the Free-Convective Boundary Layer: Results from Large-Eddy Simulations 

      Elguernaoui, Omar; Reuder, Joachim; Li, Dan; Maronga, Bjørn; Bakhoday Paskyabi, Mostafa; Wolf, Tobias; Esau, Igor (Journal article; Peer reviewed, 2023)
      This study analyses the departure of the velocity-variances profiles from their quasi-steady state described by the mixed-layer similarity, using large-eddy simulations with different prescribed shapes and time scales of ...

    • Experimental Investigation of Silicon Dust Explosions in Pipes 

      Faye, Andreas (Master thesis, 2023-06-01)
      Metallurgical silicon and its alloys are essential in several industries, such as solar energy, automotive, aerospace, and steel production. However, silicon dust, generated during silicon production, processing, and ...

    • An Intensity and Size Phase Space for Tropical Cyclone Structure and Evolution 

      Casas, Eleanor; Tao, Dandan; Bell, Michael (Journal article; Peer reviewed, 2023)
      Intensity and size are important to characterize a tropical cyclone (TC), but there are a wide variety of ways that both metrics are defined. TC intensity can refer to either a maximum sustained wind speed at some height ...

    • Observational evidence for on-shelf heat transport driven by dense water export in the Weddell Sea 

      Darelius, Elin Maria K.; Daae, Kjersti; Dundas, Vår Iren Hjorth; Fer, Ilker; Hellmer, Hartmut H.; Janout, Markus; Nicholls, Keith W.; Sallée, Jean-Bapiste; Østerhus, Svein (Journal article; Peer reviewed, 2023)
      The transport of oceanic heat towards the Antarctic continental margin is central to the mass balance of the Antarctic Ice Sheet. Recent modeling efforts challenge our view on where and how the on-shelf heat flux occurs, ...

    • Future Projections of EURO-CORDEX Raw and Bias-Corrected Daily Maximum Wind Speeds Over Scandinavia 

      Michel, Clio; Sorteberg, Asgeir (Journal article; Peer reviewed, 2023)
      Twenty historical and future Coordinated Regional Climate Downscaling Experiment ensemble for Europe simulations are bias corrected to investigate the future changes in the daily maximum wind speed over Scandinavia. We use ...

    • Decadal Changes in Ventilation and Anthropogenic Carbon in the Nordic Seas 

      Jeansson, Emil; Tanhua, Toste; Olsen, Are; Smethie Jr., William M.; Rajasakaren, Balamuralli; Olafsdóttir, Solveig R.; Ólafsson, Jón (Journal article; Peer reviewed, 2023)
      We evaluate the decadal evolution of ventilation and anthropogenic carbon (Cant) in the Nordic Seas between 1982 and the 2010s. Ventilation changes on decadal timescale are identified by evaluating decadal changes in mean ...

    • Disentangling the impact of Atlantic Niño on sea-air CO2 flux 

      Koseki, Shunya; Tjiputra, Jerry; Fransner, Sara Filippa Krusmynta; Crespo, Lander Rodriguez; Keenlyside, Noel Sebastian (Journal article; Peer reviewed, 2023)
      Atlantic Niño is a major tropical interannual climate variability mode of the sea surface temperature (SST) that occurs during boreal summer and shares many similarities with the tropical Pacific El Niño. Although the ...

    • Sudden, local temperature increase above the continental slope in the southern Weddell Sea, Antarctica 

      Darelius, Elin Maria K.; Dundas, Vår Iren Hjorth; Janout, Markus; Tippenhauer, Sandra (Journal article; Peer reviewed, 2023)
      Around most of Antarctica, the Circumpolar Deep Water (CDW) shows a warming trend. At the same time, the thermocline is shoaling, thereby increasing the potential for CDW to enter the shallow continental shelves and ...

    • Pan-Atlantic decadal climate oscillation linked to ocean circulation 

      Nnamchi, Hyacinth C.; Farneti, Riccardo; Keenlyside, Noel Sebastian; Kucharski, Fred; Latif, Mojib; Reintges, Annika; Martin, Thomas (Journal article; Peer reviewed, 2023)
      Atlantic climate displays an oscillatory mode at a period of 10–15 years described as pan-Atlantic decadal oscillation. Prevailing theories on the mode are based on thermodynamic air-sea interactions and the role of ocean ...

    • 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 ...

    • Model-simulated hydroclimate in the East Asian summer monsoon region during past and future climate: a pilot study with a moisture source perspective 

      Fremme, Astrid Kristine; Hezel, Paul; Seland, Øyvind; Sodemann, Harald (Journal article; Peer reviewed, 2023)
      Here we present a pilot study of the sensitivity of summer monsoon precipitation in the Yangtze River Valley (YRV; 110–122∘ E and 27–33∘ N, eastern China) to climatic boundary conditions from the Last Glacial Maximum (LGM), ...

    • Winter Vertical Diffusion Rates in the Arctic Ocean, Estimated From 7Be Measurements and Dissipation Rate Profiles 

      Schulz, K.; Kadko, D.; Mohrholz, V.; Stephens, M.; Fer, Ilker (Journal article; Peer reviewed, 2023)
      Ocean turbulent mixing is a key process affecting the uptake and redistribution of heat, carbon, nutrients, oxygen and other dissolved gasses. Vertical turbulent diffusivity sets the rates of water mass transformations and ...

    • Pacific oceanic front amplifies the impact of Atlantic oceanic front on North Atlantic blocking 

      Cheung, Ho Nam; Omrani, Nour-Eddine; Ogawa, Fumiaki; Keenlyside, Noel Sebastian; Nakamura, Hisashi; Zhou, Wen (Journal article; Peer reviewed, 2023)
      Atmospheric blocking is a crucial driver of extreme weather events, but its climatological frequency is largely underestimated in state-of-the-art climate models, especially around the North Atlantic. While air-sea interaction ...

    • A status assessment of selected data synthesis products for ocean biogeochemistry 

      Lange, Nico; Tanhua, Toste; Pfeil, Benjamin; Bange, Hermann W.; Lauvset, Siv Kari; Grégoire, Marilaure; Bakker, Dorothee C. E.; Jones, Stephen Daniel; Fiedler, Björn; O’Brien, Kevin M.; Körtzinger, Arne (Journal article; Peer reviewed, 2023-04-26)
      Ocean data synthesis products for specific biogeochemical essential ocean variables have the potential to facilitate today’s biogeochemical ocean data usage and comply with the Findable Accessible Interoperable and Reusable ...

    • Sparse observations induce large biases in estimates of the global ocean CO2 sink: An ocean model subsampling experiment 

      Hauck, Judith; Nissen, Cara; Landschützer, Peter; Rödenbeck, Christian; Bushinsky, Seth; Olsen, Are (Journal article; Peer reviewed, 2023)
      Estimates of ocean CO2 uptake from global ocean biogeochemistry models and pCO2-based data products differ substantially, especially in high latitudes and in the trend of the CO2 uptake since 2000. Here, we assess the ...

    • Fingerprint of Climate Change on Southern Ocean Carbon Storage 

      Wright, R.M.; Le Quéré, Quere; Mayot, N.; Olsen, Are; Bakker, D.C.E. (Journal article; Peer reviewed, 2023)
      The Southern Ocean plays a critical role in the uptake, transport, and storage of carbon by the global oceans. It is the ocean's largest sink of CO2, yet it is also among the regions with the lowest storage of anthropogenic ...

    • A Snapshot on the Buildup of the Stable Water Isotopic Signal in the Upper Snowpack at EastGRIP on the Greenland Ice Sheet 

      Zuhr, Alexandra M.; Wahl, Sonja; Steen-Larsen, Hans Christian; Hörhold, Maria; Meyer, Hanno; Laepple, Thomas (Journal article; Peer reviewed, 2023)
      The stable water isotopic composition in firn and ice cores provides valuable information on past climatic conditions. Because of uneven accumulation and post-depositional modifications on local spatial scales up to hundreds ...

    • 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 ...

    • Decadal Predictability of the North Atlantic Eddy-Driven Jet in Winter 

      Marcheggiani, Andrea; Robson, Jon; Monerie, Paul-Arthur; Bracegirdle, Thomas J.; Smith, Doug (Journal article; Peer reviewed, 2023)
      This paper expands on work showing that the winter North Atlantic Oscillation (NAO) is predictable on decadal timescales to quantify the skill in capturing the North Atlantic eddy-driven jet's location and speed. By focusing ...