Nye registreringer

  • Bedymo: A combined quasi-geostrophic and primitive equation model in σ coordinates 

    Spensberger, Clemens; Thorsteinsson, Trond; Spengler, Thomas (Journal article; Peer reviewed, 2022)
    This paper introduces the Bergen Dynamical Model (Bedymo), an idealized atmospheric circulation model, which combines the quasi-geostrophic approximation and the hydrostatic primitive equations into one modelling framework. ...
  • Multidecadal variability of ENSO in a recharge oscillator framework 

    Rodriguez Crespo, Lander; Rodríguez-Fonseca, María Belén; Polo, Irene; Keenlyside, Noel Sebastian; Dommenget, Dietmar (Journal article; Peer reviewed, 2022)
    We use a conceptual recharge oscillator model to identify changes in El Niño and the Southern Oscillation (ENSO) statistics and dynamics during the observational record. The variability of ENSO has increased during the ...
  • A POD-Based Reduced Order Model for Offshore Wind Applications, using LiDAR Measurements and WRF-PALM Simulations 

    Rønning, Martine (Master thesis, 2022-06-03)
    Wind flow fields within a wind farm, including wake dynamics, are a complex system of large degrees of freedom. The wake shape and velocity deficit downstream of a turbine may be calculated using numerical modeling, such ...
  • How Is the Ocean Anthropogenic Carbon Reservoir Filled? 

    Davila, Xabier; Gebbie, Geoffrey; Brakstad, Ailin; Lauvset, Siv Kari; McDonagh, Elaine Louise; Schwinger, Jörg; Olsen, Are (Journal article; Peer reviewed, 2022)
    About a quarter of the total anthropogenic CO2 emissions during the industrial era has been absorbed by the ocean. The rate limiting step for this uptake is the transport of the anthropogenic carbon (Cant) from the ocean ...
  • Best Practice Data Standards for Discrete Chemical Oceanographic Observations 

    Jiang, Li-Qing; Pierrot, Denis; Wanninkhof, Rik; Feely, Richard A.; Tilbrook, Bronte; Alin, Simone; Barbero, Leticia; Byrne, Robert H.; Carter, Brendan R.; Dickson, Andrew G.; Gattuso, Jean-Pierre; Greeley, Dana; Hoppema, Mario; Humphreys, Matthew P.; Karstensen, Johannes; Lange, Nico; Lauvset, Siv Kari; Lewis, Ernie R.; Olsen, Are; Pérez, Fiz F.; Sabine, Christopher; Sharp, Jonathan D.; Tanhua, Toste; Trull, Thomas W.; Velo, Anton; Allegra, Andrew J.; Barker, Paul; Burger, Eugene; Cai, Wei-Jun; Chen, Chen-Tung A.; Cross, Jessica; Garcia, Hernan; Hernandez-Ayon, Jose Martin; Hu, Xinping; Kozyr, Alex; Langdon, Chris; Lee, Kitack; Salisbury, Joe; Wang, Zhaohui Aleck; Xue, Liang (Journal article; Peer reviewed, 2022)
    Effective data management plays a key role in oceanographic research as cruise-based data, collected from different laboratories and expeditions, are commonly compiled to investigate regional to global oceanographic ...
  • Evaluation of Temperature-Dependent Complex Refractive Indices of Supercooled Liquid Water Using Downwelling Radiance and In-Situ Cloud Measurements at South Pole 

    Rowe, Penny M.; Walden, Von P.; Brandt, Richard E.; Town, Michael Stephen; Hudson, Stephen; Neshyba, Steven (Journal article; Peer reviewed, 2022)
    Clouds have a large effect on the radiation budget and represent a major source of uncertainty in climate models. Supercooled liquid clouds can exist at temperatures as low as 235 K, and the radiative effect of these clouds ...
  • The stable atmospheric boundary layer over snow-covered sea ice: Model evaluation with fine-scale ISOBAR18 observations 

    Lorenz, Torge; Mayer, Stephanie; Kral, Stephan Thomas; Suomi, Irene; Steeneveld, Gert Jan; Holtslag, Albert A.M. (Journal article; Peer reviewed, 2022)
    A realistic representation of the stable atmospheric boundary layer in numerical weather prediction (NWP) and climate models is still a challenge. We study the evolution of a stable boundary layer over snow-covered sea ice ...
  • Historical and future runoff changes in the Yangtze River Basin from CMIP6 models constrained by a weighting strategy 

    Zhao, Jiazhen; He, Shengping; Wang, Huijun (Journal article; Peer reviewed, 2022)
    Based on the ERA5-Land datasets from 1981–2020, a decadal oscillation has been found in the variation of summer runoff in the middle and lower reaches of the Yangtze River Basin (MLYRB). The oscillation suggests that the ...
  • Nora3: A nonhydrostatic high-resolution hindcast of the North sea, the Norwegian sea, and the Barents sea 

    Haakenstad, Hilde; Breivik, Øyvind; Furevik, Birgitte Rugaard; Reistad, Magnar; Bohlinger, Patrik; Aarnes, Ole Johan (Journal article; Peer reviewed, 2021)
    The 3-km Norwegian Reanalysis (NORA3) is a 15-yr mesoscale-permitting atmospheric hindcast of the North Sea, the Norwegian Sea, and the Barents Sea. With a horizontal resolution of 3 km, the nonhydrostatic numerical weather ...
  • Norway's marine and terrestrial climate mapped with dynamical downscaling 

    Haakenstad, Hilde (Doctoral thesis, 2022-06-20)
    Long-term numerical reconstructions on high spatial resolution of past weather are essential tools for studies of the local climate and climate extremes. The focus of this thesis has been to resolve the wind, precipitation, ...
  • Recent Hadley circulation strengthening: a trend or multidecadal variability? 

    Zaplotnik, Žiga; Pikovnik, Matic; Boljka, Lina (Journal article; Peer reviewed, 2022)
    This study explores the possible drivers of the recent Hadley circulation strengthening in the modern reanalyses. Predominantly, two recent generations of reanalyses provided by the European Centre for Medium-Range Weather ...
  • Future change in extreme precipitation in East Asian spring and Mei-yu seasons in two high-resolution AGCMs 

    Chen, Chao-An; Hsu, Huang-Hsiung; Liang, Hsin-Chien; Chiu, Ping-Gin; Tu, Chia-Ying (Journal article; Peer reviewed, 2022)
    Precipitation in the spring and Mei-yu seasons, the main planting and growing period in East Asia, is crucial to water resource management. Changes in spring and Mei-yu extreme precipitation under global warming are evaluated ...
  • Physical processes of summer extreme rainfall interannual variability in eastern China: Part I—observational analysis 

    Tian, Fangxing; Li, Sihan; Dong, Buwen; Klingaman, Nicholas P.; Freychet, Nicolas; Sparrow, Sarah (Journal article; Peer reviewed, 2022)
    Extreme precipitation can have catastrophic effects in China by triggering floods, landslides, and other natural disasters. We measure extreme precipitation over eastern China by the maximum of five-day precipitation amount ...
  • WMO Global Annual to Decadal Climate Update A Prediction for 2021-25 

    Hermanson, Leon; Smith, Doug; Seabrook, Melissa; Bilbao, Roberto; Doblas-Reyes, Francisco; Tourigny, Etienne; Lapin, Vladimir; Kharin, Viatcheslav V.; Merryfield, William J.; Sospedra-Alfonso, Reinel; Athanasiadis, Panos; Nicoli, Dario; Gualdi, Silvio; Dunstone, Nick; Eade, Rosie; Scaife, Adam; Collier, Mark; O'Kane, Terence; Kitsios, Vassili; Sandery, Paul; Pankatz, Klaus; Früh, Barbara; Pohlmann, Holger; Müller, Wolfgang; Kataoka, Takahito; Tatebe, Hiroaki; Ishii, Masayoshi; Imada, Yukiko; Kruschke, Tim; Koenigk, Torben; Karami, Mehdi Pasha; Yang, Shuting; Tian, Tian; Zhang, Liping; Delworth, Tom; Yang, Xiaosong; Zeng, Fanrong; Wang, Yiguo; Counillon, Francois Stephane; Keenlyside, Noel Sebastian; Bethke, Ingo; Lean, Judith; Luterbacher, Jürg; Kolli, Rupa Kumar; Kumar, Arun (Journal article; Peer reviewed, 2022)
    As climate change accelerates, societies and climate-sensitive socioeconomic sectors cannot continue to rely on the past as a guide to possible future climate hazards. Operational decadal predictions offer the potential ...
  • A finite element method for simulating soft active non-shearable rods immersed in generalized Newtonian fluids 

    Ausas, Roberto Federico; Gebhardt, Cristian Guillermo; Buscaglia, Gustavo Carlos (Journal article; Peer reviewed, 2022)
    We propose a finite element method for simulating one-dimensional solid models with finite thickness and finite length that move and experience large deformations while immersed in generalized Newtonian fluids. The method ...
  • Importance of radiative transfer processes in urban climate models: A study based on the PALM 6.0 model system 

    Salim, Mohamed H.; Schubert, Sebastian; Resler, Jaroslav; Krč, Pavel; Maronga, Bjørn; Kanani-Sühring, Farah; Sühring, Matthias; Schneider, Christoph (Journal article; Peer reviewed, 2022)
    Including radiative transfer processes within the urban canopy layer into microscale urban climate models (UCMs) is essential to obtain realistic model results. These processes include the interaction of buildings and ...
  • On the Groupiness and Intermittency of Oceanic Whitecaps 

    Malila, Mika Petteri; Thomson, J.; Breivik, Øyvind; Benetazzo, A.; Scanlon, B.; Ward, B. (Journal article; Peer reviewed, 2022)
    The enhancement of wave breaking activity during wave group passage is investigated using coherent field observations of the instantaneous sea surface elevation and whitecap coverage from platform-based stereo video ...
  • Export of ice sheet meltwater from Upernavik fjord, West Greenland 

    Muilwijk, Morven; Straneo, Fiammetta; Slater, Donald A.; Smedsrud, Lars Henrik; Holte, James; Wood, Michael; Andresen, Camilla S.; Harden, Ben (Journal article; Peer reviewed, 2022)
    Meltwater from Greenland is an important freshwater source for the North Atlantic Ocean, released into the ocean at the head of fjords in the form of runoff, submarine melt, and icebergs. The meltwater release gives rise ...
  • The Determination of the Snow Optical Grain Diameter and Snowmelt Area on the Greenland Ice Sheet Using Spaceborne Optical Observations 

    Vandecrux, Baptiste; Box, Jason E.; Wehrlé, Adrien; Kokhanovsky, Alexander A.; Picard, Ghislain; Niwano, Masashi; Hörhold, Maria; Faber, Anne-Katrine; Steen-Larsen, Hans Christian (Journal article; Peer reviewed, 2022)
    The optical diameter of the surface snow grains impacts the amount of energy absorbed by the surface and therefore the onset and magnitude of surface melt. Snow grains respond to surface heating through grain metamorphism ...
  • Quantitative assessment of two oil-in-ice surface drift algorithms 

    Martins de Aguiar, Victor Cesar; Dagestad, Knut-Frode; Hole, Lars Robert; Barthel, Knut Sven (Journal article; Peer reviewed, 2022)
    The ongoing reduction in extent and thickness of sea ice in the Arctic might result in an increase of oil spill risk due to the expansion of shipping activity and oil exploration shift towards higher latitudes. This work ...

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