Now showing items 1-20 of 267

    • The 11 year solar cycle UV irradiance effect and its dependency on the Pacific Decadal Oscillation 

      Guttu, Sigmund; Orsolini, Yvan J.; Stordal, Frode; Otterå, Odd Helge; Omrani, Nour-Eddine (Peer reviewed; Journal article, 2021)
      The stratospheric, tropospheric and surface impacts from the 11 year ultraviolet solar spectral irradiance (SSI) variability have been extensively studied using climate models and observations. Here, we demonstrate using ...
    • A 20-Year MODIS-Based Snow Cover Dataset for Svalbard and Its Link to Phenological Timing and Sea Ice Variability 

      Vickers, Hannah; Karlsen, Stein Rune; Malnes, Eirik (Peer reviewed; Journal article, 2020)
      The climate in Svalbard has been warming dramatically compared with the global average for the last few decades. Seasonal snow cover, which is sensitive to temperature and precipitation changes, is therefore expected to ...
    • A global monthly climatology of total alkalinity: A neural network approach 

      Broullón, Daniel; Perez, F. F.; Velo, Antón; Hoppema, Mario; Olsen, Are Christian Sviggum; Takahashi, Taro; Key, Robert M.; Tanhua, Toste; Gonzales-Davila, Melchor; Jeansson, Emil; Kozyr, Alexander; van Heuven, Steven (Peer reviewed; Journal article, 2019)
      Global climatologies of the seawater CO2 chemistry variables are necessary to assess the marine carbon cycle in depth. The climatologies should adequately capture seasonal variability to properly address ocean acidification ...
    • A Last Glacial Maximum forcing dataset for ocean modelling 

      Morée, Anne; Schwinger, Jörg (Peer reviewed; Journal article, 2020)
      Model simulations of the Last Glacial Maximum (LGM; ∼ 21 000 years before present) can aid the interpretation of proxy records, can help to gain an improved mechanistic understanding of the LGM climate system, and are ...
    • A modeling study of the tripole pattern of East China precipitation over the past 425 ka 

      Dai, Gaowen; Zhang, Zhongshi; Otterå, Odd Helge; Langebroek, Petra; Yan, Qing; Zhang, Ran (Peer reviewed; Journal article, 2021)
      The traditional paleoclimatological view suggests that monsoonal China was overall wetter when the East Asian summer monsoon (EASM) was strong. However, this view is at odds with the understanding of modern climate, which ...
    • A note on the statistical evidence for an influence of geomagnetic activity on Northern Hemisphere seasonal-mean stratospheric temperatures using the Japanese 55-year Reanalysis 

      Tartaglione, Nazario; Toniazzo, Thomas; Orsolini, Yvan; Otterå, Odd Helge (Peer reviewed; Journal article, 2020)
      We employ JRA-55 (Japanese 55-year Reanalysis), a recent second-generation global reanalysis providing data of high quality in the stratosphere, to examine whether a distinguishable effect of geomagnetic activity on Northern ...
    • A surface ocean CO2 reference network, SOCONET and associated marine boundary layer CO2 measurements 

      Wanninkhof, Rik; Pickers, Penelope A.; Omar, Abdirahman; Sutton, Adrienne; Murata, Akihiko; Olsen, Are; Stephens, Britton B.; Tilbrook, Bronte; Munro, David; Pierrot, Denis; Rehder, Gregor; Santana-Casiano, J. Magdalena; Müller, Jens D.; Trinanes, Joaquin; Tedesco, Kathy; O'Brien, Kevin; Currie, Kim; Barbero, Leticia; Telszewski, Maciej; Hoppema, Mario; Ishii, Masao; González-Dávila, Melchor; Bates, Nicholas R.; Metzl, Nicolas; Suntharalingam, Parvadha; Feely, Richard A.; Nakaoka, Shin-ichiro; Lauvset, Siv Kari; Takahashi, Taro; Steinhoff, Tobias; Schuster, Ute (Peer reviewed; Journal article, 2019)
      The Surface Ocean CO2 NETwork (SOCONET) and atmospheric Marine Boundary Layer (MBL) CO2 measurements from ships and buoys focus on the operational aspects of measurements of CO2 in both the ocean surface and atmospheric ...
    • A test of migratory coupling in the salmon-trout predator-prey complex of a subarctic fjord 

      Lennox, Robert J.; Espedal, Espen Olsen; Barlaup, Bjørn Torgeir; Mahlum, Shad Kenneth; Vollset, Knut (Peer reviewed; Journal article, 2019)
      Atlantic salmon (Salmo salar) smolts are vulnerable to predators during their seaward migration. To determine whether sea trout (Salmo trutta) exhibit a coupled migration to exploit the smolt run, we tracked Atlantic salmon ...
    • Abrupt intrinsic and extrinsic responses of southwestern Iberian vegetation to millennial-scale variability over the past 28 ka 

      Cutmore, Anna; Ausín, Blanca; Maslin, Mark; Eglinton, Timothy; Hodell, David; Muschitiello, Francesco; Menviel, Laurie; Haghipour, Negar; Martrat, Belen; Margari, Vasiliki; Tzedakis, Polychronis C. (Peer reviewed; Journal article, 2021)
      We present new high-resolution pollen records combined with palaeoceanographic proxies from the same samples in deep-sea cores SHAK06-5K and MD01-2444 on the southwestern Iberian Margin, documenting regional vegetation ...
    • Abundance and diversity of n-alkane and PAH-degrading bacteria and their functional genes – Potential for use in detection of marine oil pollution 

      Baussant, Thierry; Knapik, Kamila; Bagi, Andrea (Peer reviewed; Journal article, 2022)
      Monitoring environmental status through molecular investigation of microorganisms in the marine environment is suggested as a potentially very effective method for biomonitoring, with great potential for automation. There ...
    • Acidification of the Nordic Seas 

      Fransner, Sara Filippa Krusmynta; Fröb, Friederike; Tjiputra, Jerry; Goris, Nadine; Lauvset, Siv Kari; Skjelvan, Ingunn; Jeansson, Emil; Omar, Abdirahman; Chierici, Melissa; Jones, Elizabeth Marie; Fransson, Agneta; Ólafsdóttir, Sólveig R.; Johannessen, Truls; Olsen, Are (Journal article; Peer reviewed, 2022)
      Due to low calcium carbonate saturation states, and winter mixing that brings anthropogenic carbon to the deep ocean, the Nordic Seas and their cold-water corals are vulnerable to ocean acidification. Here, we present a ...
    • Acoustic telemetry predation sensors reveal the tribulations of Atlantic salmon (Salmo salar) smolts migrating through lakes 

      Hanssen, Erlend Mjelde; Vollset, Knut Wiik; Salvanes, Anne Gro Vea; Barlaup, Bjørn; Whoriskey, Kim; Isaksen, Trond Einar; Normann, Eirik Straume; Hulbak, Magnus Andre; Lennox, Robert (Peer reviewed; Journal article, 2021)
      Smolt migration through lakes is hazardous, as the predation pressure can be extreme and the hydrology a great contrast to that of a riverine area. However, the mechanisms yielding these challenges have been scarcely ...
    • Acute effects of gas supersaturation on Atlantic salmon smolt in two Norwegian rivers 

      Stenberg, Sondre Kvalsvik; Velle, Gaute; Pulg, Ulrich; Skoglund, Helge (Peer reviewed; Journal article, 2020)
      Total dissolved gas (TDG) supersaturation downstream of hydropower plants may cause gas bubble disease (GBD) and harmful effects in fish. Little is known about tolerance levels of TDG supersaturation on Atlantic salmon ...
    • Afforestation impact on soil temperature in regional climate model simulations over Europe 

      Sofiadis, Giannis; Katragkou, Eleni; Davin, Edouard L.; Rechid, Diana; de Noblet-Ducoudré, Nathalie; Breil, Marcus; Cardoso, Rita M.; Hoffmann, Peter; Jach, Lisa; Meier, Ronny; Mooney, Priscilla A.; Soares, Pedro M.M.; Strada, Susanna; Tölle, Merja H.; Warrach-Sagi, Kirsten (Peer reviewed; Journal article, 2022)
      In the context of the first phase of the Coordinated Regional Climate Downscaling Experiment in the European domain (EURO-CORDEX) flagship plot study on Land Use and Climate Across Scales (LUCAS), we investigate the ...
    • Agreement between reconstructed and modeled boreal precipitation of the Last Interglacial 

      Scussolini, Paolo; Bakker, Pepijn; Guo, Chuncheng; Stepanek, Christian; Qiong, Zhang; Braconnot, Pascale; Cao, Jian; Guarino, Maria-Vittoria; Coumou, Dim; Prange, Matthias; Ward, Philip J.; Renssen, Hans; Kageyama, Masa; Otto-Bliesner, Bette; Aerts, Jeroen C.J.H. (Peer reviewed; Journal article, 2019)
      The last extended time period when climate may have been warmer than today was during the Last Interglacial (LIG; ca. 129 to 120 thousand years ago). However, a global view of LIG precipitation is lacking. Here, seven new ...
    • Allelic polymorphisms in a glycosyltransferase gene shape glycan repertoire in the O-linked protein glycosylation system of Neisseria 

      Wang, Nelson; Anonsen, Jan Haug; Hadjineophytou, Chris; Reinar, William Brynildsen; Børud, Bente; Vik, Åshild; Koomey, John Michael (Peer reviewed; Journal article, 2020)
      Glycosylation of multiple proteins via O-linkage is well documented in bacterial species of Neisseria of import to human disease. Recent studies of protein glycosylation (pgl) gene distribution established that related ...
    • Alterations in genetically modified crops assessed by omics studies: Systematic review and meta-analysis 

      Benevenuto, Rafael Fonseca; Venter, Hermoine Jean; Zanatta, Caroline Bedin; Nodari, Rubens Onofre; Agapito-Tenfen, Sarah Zanon (Peer reviewed; Journal article, 2022)
      Background International agreements and domestic legislation regulate genetically modified (GM) crops for environmental release, recognizing that genetic engineering could result in unintended genotypic and phenotypic ...
    • An oceanic perspective on Greenland’s recent freshwater discharge since 1850 

      Perner, Kerstin; Moros, Matthias; Otterå, Odd Helge; Blanz, Thomas; Schneider, Ralph R.; Jansen, Eystein (Peer reviewed; Journal article, 2019)
      Instrumental data evidence an accelerating freshwater release from Arctic sea ice export and the Greenland Ice Sheet over the past three decades causing cooling and freshening in the subpolar North Atlantic region. However, ...
    • Annelid Fauna of the Prince Gustav Channel, a Previously Ice-Covered Seaway on the Northeastern Antarctic Peninsula 

      Drennan, Regan; Dahlgren, Thomas Gunnar; Linse, Katrin; Glover, Adrian G. (Peer reviewed; Journal article, 2021)
      The Prince Gustav Channel is a narrow seaway located in the western Weddell Sea on the northeastern-most tip of the Antarctic Peninsula. The channel is notable for both its deep (>1200 m) basins, and a dynamic glacial ...
    • Application of Clumped Isotope Thermometry to Benthic Foraminifera 

      Piasecki, Alison; Bernasconi, Stefano M.; Grauel, Anna-Lena; Hannisdal, Bjarte; Ho, Sze Ling; Leutert, Thomas Jan; Marchitto, Thomas M.; Meinicke, Niklas; Tisserand, Amandine Aline; Meckler, Anna Nele (Peer reviewed; Journal article, 2019)
      Obtaining absolute temperatures of the ocean in deep time is complicated by the lack of constraints on seawater chemistry. Seawater salinity, carbonate ion concentration, δ18O, and elemental abundance changes may obscure ...