Browsing NORCE Klima og miljø by Title

Now showing items 1-20 of 1020

    • 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 ...

    • The 2019–21 drought in southern Madagascar 

      Barimalala, Rondrotiana; Wainwright, Caroline; Kolstad, Erik Wilhelm; Demissie, Teferi Dejene (Peer reviewed; Journal article, 2024)
      Two consecutive failed rainy seasons in the southern part of Madagascar in 2019–21 had devastating impacts on the population, including an amplification of the ongoing food insecurity in the area. The drought events were ...

    • 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 ...

    • Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Spionidae and Poecilochaetidae 

      Neal, Lenka; Wiklund, Helena; Rabone, Muriel; Dahlgren, Thomas Gunnar; Glover, Adrian (Peer reviewed; Journal article, 2022)
      This paper represents a continuation of taxonomic publications on the benthic fauna of polymetallic nodule fields in the eastern Clarion-Clipperton Zone (CCZ) using material collected during baseline environmental survey ...

    • Abyssal fauna of polymetallic nodule exploration areas, eastern Clarion-Clipperton Zone, central Pacific Ocean: Annelida: Spionidae and Poecilochaetidae 

      Neal, Lenka; Wiklund, Helena; Rabone, Muriel; Dahlgren, Thomas Gunnar; Glover, Adrian G. (Journal article; Peer reviewed, 2022)
      This paper represents a continuation of taxonomic publications on the benthic fauna of polymetallic nodule fields in the eastern ClarionClipperton Zone (CCZ) using material collected during baseline environmental survey ...

    • 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 ...

    • Added value of a regional coupled model: the case study for marine heatwaves in the Caribbean 

      Pontoppidan, Marie; De Falco, Chiara; Mooney, Priscilla A.; Nummelin, Aleksi Henrynpoika; Tjiputra, Jerry (Peer reviewed; Journal article, 2023)
      There is an urgent need to improve capacity to predict marine heatwaves given their substantial negative impacts on marine ecosystems. Here we present the added value of a regional climate simulation, performed with the ...

    • The added value of km-scale simulations to describe temperature over complex orography: the CORDEX FPS-Convection multi-model ensemble runs over the Alps 

      Soares, P.M.M.; Careto, J.A.M.; Cardoso, Rita M.; Goergen, Klaus; Katragkou, Eleni; Sobolowski, Stefan Pieter; Coppola, Erika; Ban, Nikolina; Belušić, Danijel; Berthou, Ségolène; Caillaud, Cécile; Dobler, Andreas; Hodnebrog, Øivind; Kartsios, Stergios; Lenderink, Geert; Lorenz, Torge; Milovac, Josipa; Feldmann, Hendrik; Pichelli, Emanuela; Truhetz, Heimo; Demory, Marie-Estelle; de Vries, Hylke; Warrach-Sagi, Kirsten; Keuler, Klaus; Raffa, Mario; Tölle, Merja H.; Sieck, Kevin; Bastin, Sophie (Peer reviewed; Journal article, 2022)
      The increase in computational resources has enabled the emergence of multi-model ensembles of convection-permitting regional climate model (CPRCM) simulations at very high horizontal resolutions. An example is the CORDEX ...

    • The added value of simulated near-surface wind speed over the Alps from a km-scale multimodel ensemble 

      Molina, M.O.; Careto, J.M.; Gutiérrez, C.; Sánchez, E.; Goergen, K.; Sobolowski, Stefan Pieter; Coppola, E.; Pichelli, E.; Ban, N.; Belus̆ić, D.; Short, C.; Caillaud, C.; Dobler, Andreas; Hodnebrog, Øivind; Kartsios, S.; Lenderink, G.; de Vries, Vries; Göktürk, Ozan mert; Milovac, J.; Feldmann, H.; Truhetz, H.; Demory, M.E.; Warrach-Sagi, K.; Keuler, K.; Adinolfi, M.; Raffa, M.; Tölle, M.; Sieck, K.; Bastin, S.; Soares, P.M.M. (Journal article; Peer reviewed, 2024)
      The advancement of computational resources has allowed researchers to run convection-permitting regional climate model (CPRCM) simulations. A pioneering effort promoting a multimodel ensemble of such simulations is the ...

    • Advanced Sentinel-1 Analysis Ready Data for Africa (ESA EO4SD: SAR-4-Africa), D5 – Final Report 

      Haarpaintner, Jörg; Hindberg, Heidi; Yitayew, Temesgen Gebrie; Arntzen, Ingar M.; Main, Russel (Research report, 2020)
      Sentinel-1 (S1) of the European Copernicus Program provide consistent global cloud-independent synthetic aperture radar (SAR) imagery. However, there is a strong reluctance to use SAR data because of its complexity. Combined ...