Now showing items 257-276 of 406

    • New wine in old bottles: Modification of the Na+/K+-ATPase enzyme activity assay and its application in salmonid aquaculture 

      Takvam, Marius; Sundell, Kristina; Sundh, Henrik; Gharbi, Naouel; Kryvi, Harald; Nilsen, Tom Ole (Peer reviewed; Journal article, 2023)
      The Na+, K+ ATPase (NKA) enzyme is important to generate the transmembrane ion gradient in the gills, intestine, and kidneys, hence, is vital for secondary transport of fluids and different solutes in teleosts. Gill NKA ...
    • Nitrogen fixation rates in the Guinea Dome and the equatorial upwelling regions in the Atlantic Ocean 

      Fernández‑Carrera, Ana; Kiko, Rainer; Hauss, Helena; Hamilton, Douglas S.; Achterberg, Eric P.; Montoya, Joseph P.; Dengler, Marcus; Brandt, Peter; Subranamiam, Ajit (Peer reviewed; Journal article, 2023)
      Biological nitrogen fixation is a key process balancing the loss of combined nitrogen in the marine nitrogen cycle. Its relevance in upwelling or high nutrient regions is still unclear, with the few available studies in ...
    • NorCPM1 and its contribution to CMIP6 DCPP 

      Bethke, Ingo; Wang, Yiguo; Counillon, Francois Stephane; Keenlyside, Noel Sebastian; Kimmritz, Madlen; Fransner, Filippa; Samuelsen, Annette; Langehaug, Helene R.; Svendsen, Lea; Chiu, Ping-Gin; Passos, Leilane G.; Bentsen, Mats; Guo, Chuncheng; Gupta, Alok Kumar; Tjiputra, Jerry; Kirkevåg, Alf; Oliviè, Dirk Jan Leo; Seland, Øyvind; Vågane, Julie Solsvik; Fan, Yuanchao; Eldevik, Tor (Journal article; Peer reviewed, 2021)
      The Norwegian Climate Prediction Model version 1 (NorCPM1) is a new research tool for performing climate reanalyses and seasonal-to-decadal climate predictions. It combines the Norwegian Earth System Model version 1 (NorESM1) ...
    • North Atlantic Oscillation in winter is largely insensitive to autumn Barents-Kara sea ice variability 

      Siew, Yu Feng; Li, Camille; Ting, Mingfang; Sobolowski, Stefan Pieter; Wu, Yutian; Chen, Xiaodan (Peer reviewed; Journal article, 2021)
      Arctic sea ice extent in autumn is significantly correlated with the winter North Atlantic Oscillation (NAO) in the satellite era. However, questions about the robustness and reproducibility of the relationship persist. ...
    • The northern European shelf as an increasing net sink for CO2 

      Becker, Meike; Olsen, Are; Landschützer, Peter; Omar, Abdirahman; Rehder, Gregor; Rödenbeck, Christian; Skjelvan, Ingunn (Peer reviewed; Journal article, 2021)
      We developed a simple method to refine existing open-ocean maps and extend them towards different coastal seas. Using a multi-linear regression we produced monthly maps of surface ocean fCO2 in the northern European coastal ...
    • A Novel Moderately Thermophilic Type Ib Methanotroph Isolated from an Alkaline Thermal Spring in the Ethiopian Rift Valley 

      Islam, Tajul; Gessesse, Amare; Garcia-Moyano, Antonio; Murrell, J. Colin; Øvreås, Lise (Peer reviewed; Journal article, 2020)
      Aerobic moderately thermophilic and thermophilic methane-oxidizing bacteria make a substantial contribution in the control of global warming through biological reduction of methane emissions and have a unique capability ...
    • Nowcasting tracks of severe convective storms in West Africa from observations of land surface state 

      Taylor, Christopher M; Klein, Cornelia; Dione, Cheikh; Parker, Douglas John; Marsham, John; Abdoulahat Diop, Cheikh; Fletcher, Jennifer; Saidou Chaibou, Abdoul Aziz; Nafissa, Dignon Bertin; Semeena, Valiyaveetil Shamsudheen; Cole, Steven J; Anderson, Seonaid R (Peer reviewed; Journal article, 2022)
      In tropical convective climates, where numerical weather prediction of rainfall has high uncertainty, nowcasting provides essential alerts of extreme events several hours ahead. In principle, short-term prediction of intense ...
    • Observation-based Sea surface temperature trends in Atlantic large marine ecosystems 

      Kessler, Augustin; Goris, Nadine; Lauvset, Siv Kari (Peer reviewed; Journal article, 2022)
      Variations in Sea Surface Temperature (SST) are an important driver of marine species abundance in Large Marine Ecosystems (LMEs). Studies concerned with climate change induced SST trends within these LMEs have so far been ...
    • Ocean Biogeochemical Predictions—Initialization and Limits of Predictability 

      Fransner, Filippa; Counillon, Francois; Bethke, Ingo; Tjiputra, Jerry; Samuelsen, Annette; Nummelin, Aleksi; Olsen, Are (Peer reviewed; Journal article, 2020)
      Predictions of ocean biogeochemistry, such as primary productivity and CO2 uptake, would help to understand the changing marine environment and the global climate. There is an emerging number of studies where initialization ...
    • Ocean biogeochemistry in the Norwegian Earth System Model version 2 (NorESM2) 

      Tjiputra, Jerry; Schwinger, Jörg; Bentsen, Mats; Morée, Anne; Gao, Shuang; Bethke, Ingo; Heinze, Christoph; Goris, Nadine; Gupta, Alok Kumar; He, Yan-Chun; Oliviè, Dirk Jan Leo; Seland, Øyvind; Schulz, Michael (Peer reviewed; Journal article, 2020)
      The ocean carbon cycle is a key player in the climate system through its role in regulating the atmospheric carbon dioxide concentration and other processes that alter the Earth's radiative balance. In the second version ...
    • On the climatic influence of CO2 forcing in the Pliocene 

      Burton, Lauren E.; Haywood, Alan M.; Tindall, Julia C.; Dolan, Aisling M.; Hill, Daniel J.; Abe-Ouchi, Ayako; Chan, Wing-Le; Chandan, Deepak; Feng, Ran; Hunter, Stephen J.; Li, Xiangyu; Peltier, W. Richard; Tan, Ning; Stepanek, Christian; Zhang, Zhongshi (Journal article; Peer reviewed, 2023)
      Understanding the dominant climate forcings in the Pliocene is crucial to assessing the usefulness of the Pliocene as an analogue for our warmer future. Here, we implement a novel yet simple linear factorisation method to ...
    • On the Potentials and Limitations of Attributing a Small-Scale Climate Event 

      Matte, Dominic; Christensen, Jens Hesselbjerg; Feddersen, Henrik; Vedel, Henrik; Nielsen, Niels Woetmann; Pedersen, Rasmus A.; Zeitzen, Rune M. K. (Peer reviewed; Journal article, 2022)
      Intense convective storms can be hazardous when occurring over large populated cities. In a changing climate, decision makers and the general public increasingly need to be able to better understand if and to what extent ...
    • Optimal sensors placement for detecting CO2 discharges from unknown locations on the seafloor 

      Oleynik, Anna; García-Ibáñez, Maribel I.; Blaser, Nello; Omar, Abdirahman; Alendal, Guttorm (Peer reviewed; Journal article, 2020)
      Assurance monitoring of the marine environment is a required and intrinsic part of CO2 storage project. To reduce the costs related to the monitoring effort, the monitoring program must be designed with optimal use of ...
    • Overview of the Norwegian Earth System Model (NorESM2) and key climate response of CMIP6 DECK, historical, and scenario simulations 

      Seland, Øyvind; Bentsen, Mats; Oliviè, Dirk Jan Leo; Toniazzo, Thomas; Gjermundsen, Ada; Graff, Lise Seland; Debernard, Jens Boldingh; Gupta, Alok Kumar; He, Yan-Chun; Kirkevåg, Alf; Schwinger, Jörg; Tjiputra, Jerry; Aas, Kjetil Schanke; Bethke, Ingo; Fan, Yuanchao; Griesfeller, Jan; Grini, Alf; Guo, Chuncheng; Ilicak, Mehmet; Karset, Inger Helene H.; Landgren, Oskar Andreas; Liakka, Johan; Moseid, Kine Onsum; Nummelin, Aleksi; Spensberger, Clemens; Tang, Hui; Zhang, Zhongshi; Heinze, Christoph; Iversen, Trond; Schulz, Michael (Peer reviewed; Journal article, 2020)
      The second version of the coupled Norwegian Earth System Model (NorESM2) is presented and evaluated. NorESM2 is based on the second version of the Community Earth System Model (CESM2) and shares with CESM2 the computer ...
    • Parameter Uncertainty of a Snowmelt Runoff Model and Its Impact on Future Projections of Snowmelt Runoff in a Data-Scarce Deglaciating River Basin 

      Xiang, Yiheng; Li, Lu; Chen, Jie; Xu, Chong-Yu; Xia, Jun; Chen, Hua; Liu, Jie (Peer reviewed; Journal article, 2019)
      The impacts of climate change on water resources in snow- and glacier-dominated basins are of great importance for water resource management. The Snowmelt Runoff Model (SRM) was developed to simulate and predict daily ...
    • Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks 

      Feng, Ran; Bhattacharya, Tripti; Otto-Bliesner, Bette L.; Brady, Esther C.; Haywood, Alan M.; Tindall, Julia C.; Hunter, Stephen J.; Abe-Ouchi, Ayako; Chan, Wing-Le; Kageyama, Masa; Contoux, Camille; Guo, Chuncheng; Li, Xiangyu; Lohmann, Gerrit; Stepanek, Christian; Tan, Ning; Zhang, Qiong; Zhang, Zhongshi; Han, Zixuan; Williams, Charles J. R.; Lunt, Daniel J.; Dowsett, Harry J.; Chandan, Deepak; Peltier, W. Richard (Peer reviewed; Journal article, 2022)
      Despite tectonic conditions and atmospheric CO2 levels (pCO2) similar to those of present-day, geological reconstructions from the mid-Pliocene (3.3-3.0 Ma) document high lake levels in the Sahel and mesic conditions in ...
    • Patterns of eukaryotic diversity from the surface to the deep-ocean sediment 

      Cordier, Tristan; Angeles, Inès Barrenechea; Henry, Nicolas; Lejzerowicz, Franck; Berney, Cédric; Morard, Raphaël; Brandt, Angelika; Cambon-Bonavita, Marie-Anne; Guidi, Lionel; Lombard, Fabien; Arbizu, Pedro Martinez; Massana, Ramon; Orejas, Covadonga; Poulain, Julie; Smith, Craig R.; Wincker, Patrick; Arnaud-Haond, Sophie; Gooday, Andrew J.; de Vargas, Colomban; Pawlowski, Jan (Peer reviewed; Journal article, 2022)
      Remote deep-ocean sediment (DOS) ecosystems are among the least explored biomes on Earth. Genomic assessments of their biodiversity have failed to separate indigenous benthic organisms from sinking plankton. Here, we compare ...
    • Patterns of Macrofaunal Biodiversity Across the Clarion-Clipperton Zone: An Area Targeted for Seabed Mining 

      Washburn, Travis; Menot, Lenaick; Bonifácio, Paulo; Pape, Ellen; Blazewicz, Magdalena; Bribiesca-Contreras, Lupita; Dahlgren, Thomas Gunnar; Fukushima, Tomohiko; Glover, Adrian G.; Jung Ju, Se; Kaiser, Stefanie; Hwan Yu, Ok; Smith, Craig R. (Peer reviewed; Journal article, 2021)
      Macrofauna are an abundant and diverse component of abyssal benthic communities and are likely to be heavily impacted by polymetallic nodule mining in the Clarion-Clipperton Zone (CCZ). In 2012, the International Seabed ...
    • PEG-Delivered CRISPR-Cas9 Ribonucleoproteins System for Gene-Editing Screening of Maize Protoplasts 

      Agapito, Sarah Zanon (Journal article; Peer reviewed, 2020)
      Clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 technology allows the modification of DNA sequences in vivo at the location of interest. Although CRISPR-Cas9 can produce genomic changes that do not ...
    • Performance and welfare of Atlantic salmon, Salmo salar L. post-smolts in recirculating aquaculture systems: Importance of salinity and water velocity 

      Ytrestøyl, Trine; Takle, Harald Rune; Kolarevic, Jelena; Calabrese, Sara; Timmerhaus, Gerrit; Rosseland, Bjørn Olav; Teien, Hans-Christian; Nilsen, Tom Ole; Handeland, Sigurd O; Stefansson, Sigurd; Ebbesson, Lars; Terjesen, Bendik Fyhn (Journal article; Peer reviewed, 2020)
      Producing a larger post-smolt in recirculating aquaculture systems (RAS) could shorten the production time in sea cages and potentially reduce mortality. Knowledge of the biological requirements of post-smolts in ...