Blar i Geophysical Institute på tittel

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    • Global observed changes in daily climate extremes of temperature and precipitation 

      Alexander, L. V.; Zhang, X.; Peterson, T. C.; Caesar, J.; Gleason, B.; Klein Tank, A.; Haylock, M.; Collins, D.; Trewin, B.; Rahimzadeh, F.; Tagipour, A.; Ambenje, P.; Kumar, K. Rupa; Revadekar, J.; Griffiths, G.; Vincent, L.; Stephenson, David B.; Burn, J.; Aguliar, E.; Brunet, M.; Taylor, M.; New, M.; Zhai, P.; Rusticucci, M.; Vazquez-Aguirre, J. L. (Peer reviewed; Journal article, 2006-03-15)
      A suite of climate change indices derived from daily temperature and precipitation data, with a primary focus on extreme events, were computed and analyzed. By setting an exact formula for each index and using specially ...

    • A Global Ocean Oxygen Database and Atlas for Assessing and Predicting Deoxygenation and Ocean Health in the Open and Coastal Ocean 

      Grégoire, Marilaure; Garçon, Véronique; Garcia, Hernan E.; Breitburg, Denise L; Isensee, Kirsten; Oschlies, Andreas; Telszewski, Maciej; Barth, Alexander; Bittig, Henry C.; Carstensen, Jacob; Carval, Thierry; Chai, Fei; Chavez, Francisco; Conley, Daniel; Coppola, Laurent; Crowe, Sean; Currie, Kim; Dai, Minhan; Deflandre, Bruno; Dewitte, Boris; Diaz, Robert J.; Garcia-Robledo, Emilio; Gilbert, Denis; Giorgetti, Alessandra; Glud, Ronnie N; Gutierrez, Dimitri; Hosoda, Shigeki; Ishii, Masao; Jacinto, Gil; Langdon, Chris; Lauvset, Siv Kari; Levin, Lisa A.; Limburg, Karin E.; Mehrtens, Hela; Montes, Ivonne; Naqvi, Wajih; Paulmier, Aurelien; Pfeil, Gerrit Benjamin; Pitcher, Grant C; Pouliquen, Sylvie; Rabalais, N; Rabouille, Christophe; Recape, Virginie; Roman, Michael; Rose, Kenneth; Rudnick, Daniel L.; Rummer, Jodie L.; Schmechtig, Catherine; Schmidtko, Sunke; Seibel, Brad A.; Slomp, Caroline; Sumalia, Rashid; Tanhua, Toste; Thierry, Virginie; Uchida, Hiroshi; Wanninkhof, Rik; Yasuhara, Moriaki (Journal article; Peer reviewed, 2021)
      In this paper, we outline the need for a coordinated international effort toward the building of an open-access Global Ocean Oxygen Database and ATlas (GO2DAT) complying with the FAIR principles (Findable, Accessible, ...

    • Global Ocean Sediment Composition and Burial Flux in the Deep Sea 

      Hayes, Christopher T.; Costa, Kassandra M.; Anderson, Robert F.; Calvo, Eva; Chase, Zanna; Demina, Ludmila L.; Dutay, Jean-Claude; German, Cristopher R.; Heimbürger-Boavida, Lars-Eric; Jaccard, Samuel L.; Jacobel, Allison; Kohfeld, Karen E.; Kravchishina, Marina D.; Lippold, Jörg; Mekik, Figen; Missiaen, Lise; Pavia, Frank; Paytan, Adina; Pedrosa-Pamies, Rut; Petrova, Mariia V.; Rahman, Shaily; Robinson, Laura F.; Roy-Barman, Matthieu; Sanchez-Vidal, Anna; Shiller, Alan M.; Tagliabue, Alessandro; Tessin, Allyson; van Hulten, Marco Marinus Peter; Zhang, Jing (Journal article; Peer reviewed, 2021)
      Quantitative knowledge about the burial of sedimentary components at the seafloor has wide-ranging implications in ocean science, from global climate to continental weathering. The use of 230Th-normalized fluxes reduces ...

    • Global ocean wave fields show consistent regional trends between 1980 and 2014 in a multi-product ensemble 

      Erikson, L.; Morim, J.; Hemer, M.; Young, I.; Wang, X.L.; Mentaschi, L.; Mori, N.; Semedo, A.; Stopa, J.; Grigorieva, V.; Gulev, S.; Aarnes, Ole Johan; Bidlot, J.-R.; Breivik, Øyvind; Bricheno, L.; Shimura, T.; Menendez, M.; Markina, M.; Sharmar, V.; Trenham, C.; Wolf, J.; Appendini, C.; Caires, S.; Groll, N.; Webb, A. (Journal article; Peer reviewed, 2022)
      Historical trends in the direction and magnitude of ocean surface wave height, period, or direction are debated due to diverse data, time-periods, or methodologies. Using a consistent community-driven ensemble of global ...

    • Global Surface Ocean Acidification Indicators From 1750 to 2100 

      Jiang, Li-Qing; Dunne, John; Carter, Brendan R; Tjiputra, Jerry; Terhaar, Jens; Sharp, Jonathan D.; Olsen, Are; Alin, Simone; Bakker, Dorothee C.E.; Feely, Richard A.; Gattuso, Jean-Pierre; Hogan, Patrick; Ilyina, Tatiana; Lange, Nico; Lauvset, Siv Kari; Lewis, Ernie R.; Lovato, Tomas; Palmieri, Julien; Santana-Falcòn, Yeray; Schwinger, Jörg; Séférian, Roland; Strand, Gary; Swart, Neil; Tanhua, Toste; Tsujino, Hiroyuki; Wanninkhof, Rik; Watanabe, Michio; Yamamoto, Akitomo; Ziehn, Tilo (Journal article; Peer reviewed, 2023)
      Accurately predicting future ocean acidification (OA) conditions is crucial for advancing OA research at regional and global scales, and guiding society's mitigation and adaptation efforts. This study presents a new ...

    • Global variability in seawater Mg:Ca and Sr:Ca ratios in the modern ocean 

      Lebrato, Mario; Garbe-Schönberg, Dieter; Müller, Marius N.; Blanco-Ameijeiras, Sonia; Feely, Richard A.; Lorenzoni, Laura; Molinero, Juan-Carlos; Bremer, Karen; Jones, Daniel O.B.; Iglesias-Rodriguez, Debora; Greeley, Dana; Lamare, Miles D.; Paulmier, Aurelien; Graco, Michelle; Cartes, Joan; Barcelos E Ramos, Joana; de Lara, Ana; Sanchez-Leal, Ricardo; Jimenez, Paz; Paparazzo, Flavio E.; Hartman, Susan E.; Westernströer, Ulrike; Küter, Marie; Benavides, Roberto; da Silva, Armindo F.; Bell, Steven; Payne, Chris; Ólafsdóttir, Sædis; Robinson, Kelly; Jantunen, Liisa M.; Korablev, Alexander; Webster, Richard J.; Jones, Elizabeth Marie; Gilg, Olivier; Bailly du Bois, Pascal; Beldowski, Jacek; Ashjian, Carin; Yahia, Nejib D.; Twining, Benjamin S.; Chen, Xue-Gang; Tseng, Li-Chun; Hwang, Jiang-Shiou; Dahms, Hans-Uwe; Oschlies, Andreas (Journal article; Peer reviewed, 2020)
      Seawater Mg:Ca and Sr:Ca ratios are biogeochemical parameters reflecting the Earth–ocean–atmosphere dynamic exchange of elements. The ratios’ dependence on the environment and organisms' biology facilitates their application ...

    • Global wind speed and wave height extremes derived from long-duration satellite records 

      Takbash, Alicia; Young, Ian R; Breivik, Øyvind (Peer reviewed; Journal article, 2019)
      The application of extreme-value analysis to long-duration (30 year) global altimeter and radiometer datasets is considered. In contrast to previous extreme-value analyses of satellite data, the dataset is sufficiently ...

    • GLODAPv2.2022: the latest version of the global interior ocean biogeochemical data product 

      Lauvset, Siv Kari; Lange, Nico; Tanhua, Toste; Bittig, Henry C.; Olsen, Are; Kozyr, Alex; Alin, Simone R.; Alvarez, Marta; Azetsu-Scott, Kumiko; Barbero, Leticia; Becker, Susan; Brown, Peter; Carter, Brendan R.; Da Cunha, Leticia Cotrim; Feely, Richard A; Hoppema, Mario; Humphreys, Matthew P.; Ishii, Masao; Jeansson, Emil; Jiang, Li-Qing; Jones, Stephen Daniel; Lo Monaco, Claire; Murata, Akihiko; Müller, Jens D.; Perez, Fiz F; Pfeil, Gerrit Benjamin; Schirnick, Carsten; Steinfeldt, Reiner; Suzuki, Toru; Tilbrook, Bronte; Ulfsbo, Adam; Velo, Antón; Woosley, Ryan J.; key, Robert M. (Journal article; Peer reviewed, 2022)
      The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical bottle data, with an emphasis on seawater inorganic carbon chemistry and related ...

    • The greater Agulhas Current system: an integrated study of its mesoscale variability 

      Backeberg, Bjørn C.; Johannessen, Johnny A.; Bertino, Laurent; Reason, Chris J.C. (Journal of Operational Oceanography, Journal article, 2008-02)
      For the purpose of developing an operational oceanography system for the greater Agulhas Current regime, a high resolution Hybrid Coordinate Ocean Model (HYCOM) has been set in a nested configuration. The intense and complex ...

    • Greenland climate simulations show high Eemian surface melt which could explain reduced total air content in ice cores 

      Plach, Andreas; Vinther, Bo M.; Nisancioglu, Kerim Hestnes; Vudayagiri, Sindhu; Blunier, Thomas (Journal article; Peer reviewed, 2021)
      This study presents simulations of Greenland surface melt for the Eemian interglacial period (∼130 000 to 115 000 years ago) derived from regional climate simulations with a coupled surface energy balance model. Surface ...

    • Greenland surface air temperature changes from 1981 to 2019 and implications for ice-sheet melt and mass-balance change 

      Hanna, Edward; Cappelen, John; Fettweis, Xavier; Mernild, Jacob Sebastian Haugaard; Mote, Thomas L.; Mottram, Ruth; Steffen, Konrad; Ballinger, Thomas J.; Hall, Richard J. (Journal article; Peer reviewed, 2020)
      We provide an updated analysis of instrumental Greenland monthly temperature data to 2019, focusing mainly on coastal stations but also analysing ice‐sheet records from Swiss Camp and Summit. Significant summer (winter) ...

    • Greenland-Scotland overflow studied by hydro-chemical multivariate analysis 

      Fogelquist, E.; Blindheim, J.; Tanhua, Toste; Østerhus, Svein; Buch, E.; Rey, Francisco (Peer reviewed; Journal article, 2003-01)
      Hydrographic, nutrient and halocarbon tracer data collected in July-August 1994 in the Norwegian Sea, the Faroe Bank Channel (FBC), the Iceland and Irminger Basins and the Iceland Sea are resented. Special attention was ...

    • Grounding Performance under Lightning Surges in High Voltage Substations 

      Steinsland, Vegard (Master thesis, 2018-06-16)
      To achieve electromagnetic compatibility (EMC) and sufficient protection against lighting transients in the power transmission system, understanding of the grounding system transient behavior becomes crucial when deviating ...

    • Groundwater fluctuations during a debris flow event in western Norway - Triggered by rain and snowmelt 

      Bondevik, Stein; Sorteberg, Asgeir (Journal article; Peer reviewed, 2021)
      Pore pressure is crucial in triggering debris slides and flows. Here we present measurements of groundwater pore pressure and temperature recorded by a piezometer 1.6 m below the surface on a slope susceptible to debris ...

    • Growing Ice in a Tank: Young Sea Ice Evolution and Turbulence in the Under Ice Boundary Layer 

      Håvik, Lisbeth (Master thesis, 2011-11-14)
      Thin sea ice and its modifications of the oceanic boundary layer are important in the context of the recent retreat of the Arctic sea ice cover. To study turbulence in the under ice boundary layer during thin sea ice growth, ...

    • Has a warm North Atlantic contributed to recent European cold winters? 

      Keenlyside, Noel; Omrani, Nour-Eddine (Peer reviewed; Journal article, 2014-06-02)
      The rise of global surface temperature waned during the last decade, despite increasing greenhouse gas concentrations. The temperature changes were most pronounced over northern hemisphere land masses during winter (Cohen ...

    • Heat flux variations in the eastern Norwegian Atlantic Current toward 

      Orvik, Kjell Arild; Skagseth, Øystein (Geophysical Research Letters;32(2005) L14, Journal article, 2005-07-21)

    • Heterogeneity of impacts of high CO2 on the North Western European shelf 

      Artioli, Yuri; Blackford, Jerry C.; Nondal, Gisle; Bellerby, Richard; Wakelin, Sarah L.; Holt, Jason T.; Butenschön, Momme; Allen, Julian Icarus (Peer reviewed; Journal article, 2014-02-03)
      The increase in atmospheric CO2 is a dual threat to the marine environment: from one side it drives climate change, leading to modifications in water temperature, circulation patterns and stratification intensity; on the ...

    • High northern latitude surface air temperature: comparison of existing data and creation of a new gridded data set 1900–2000 

      Kuzmina, Svetlana I.; Johannessen, Ola M.; Bengtsson, Lennart; Aniskina, Olga G.; Bobylev, Leonid P. (Peer reviewed; Journal article, 2008-03)
      Detection, attribution and understanding of temperature changes in the high northern latitudes depend on constraining uncertainties and resolving apparent discrepancies in observational data sets. We quantitatively compare ...

    • High resolution sea ice monitoring using space borne Synthetic Aperture Radar 

      Muckenhuber, Stefan (Doctoral thesis, 2017-12-06)
      Sea ice represents a major factor in the climate system and updated knowl- edge about sea ice conditions is important for shipping and offshore industry, local communities and others. Due to its remote location and strong ...