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Viser treff 1492-1511 av 34096

    • Arctic climate change: observed and modelled temperature and sea-ice variability 

      Johannessen, Ola M.; Bengtsson, Lennart; Miles, Martin W.; Kuzmina, Svetlana I.; Semenov, Vladimir A.; Alekseev, Genrikh V.; Nagurnyi, Andrei P.; Zakharov, Victor F.; Bobylev, Leonid P.; Pettersson, Lasse H.; Hasselmann, Klaus; Cattle, Howard P. (Tellus A 56A(4), Peer reviewed; Journal article, 2004-07-09)
      Changes apparent in the arctic climate system in recent years require evaluation in a century-scale perspective in order to assess the Arctic's response to increasing anthropogenic greenhouse-gas forcing. Here, a new set ...

    • Arctic Drama to Sámi Theatre - Cultural Clashes towards Decolonisation: In Shared Dialogic Spaces 

      Arntzen, Knut Ove (Journal article; Peer reviewed, 2021)
      This article deals with the concept of Arctic Drama, which is about how there is a relationship between drama and cultural clashes in the perspective of shared cultures in the northern Scandinavian area, which is defined ...

    • Arctic freshwater fluxes: sources, tracer budgets and inconsistencies 

      Forryan, Alexander; Bacon, Sheldon; Tsubouchi, Takamasa; Torres-Valdes, Sinhue; Garabato, Alberto C. Naveira (Peer reviewed; Journal article, 2019)
      The net rate of freshwater input to the Arctic Ocean has been calculated in the past by two methods: directly, as the sum of precipitation, evaporation and runoff, an approach hindered by sparsity of measurements, and by ...

    • Arctic governance: Understanding the geopolitics of commercial shipping via the Northern Sea Route 

      Bjørkli, Hans-Petter (Master thesis, 2015-06-02)
      The purpose of this study is to examine the implications of the development of the Northern Sea Route (NSR) with regard to governance in the Arctic. This topic is of importance as Arctic waters are getting bluer, more ...

    • Arctic Holocene proxy climate database – New approaches to assessing geochronological accuracy and encoding climate variables 

      Sundqvist, H.S.; Kaufmann, Darrell; MaKay, Nickholas; Axford, Y.; Balascio, Nickholas; Briner, Jason P.; Cwynar, L.C.; Sejrup, Hans Petter; Subetto, D.A.; Andrews, J.T.; Bakke, Jostein; Birks, Harry John Betteley; Brooks, S.J.; Vernal, A.E.; Jennings, A.E.; Ljungvist, K.M.; Rûhland, K.M.; Saenger, C.; Smol, J.P.; Viau, A.E. (Peer reviewed; Journal article, 2014-08-29)
      We present a systematic compilation of previously published Holocene proxy climate records from the Arctic. We identified 170 sites from north of 58° N latitude where proxy time series extend back at least to 6 cal ka (all ...

    • Arctic hydroclimate variability during the last 2000 years: Current understanding and research challenges 

      Linderholm, Hans W.; Nicolle, Marie; Francus, Pierre; Gajewski, Konrad; Helama, Samuli; Korhola, Atte; Solomina, Olga; Yu, Zicheng; Zhang, Peng; D'Andrea, William J.; Debret, Maxime; Divine, Dmitry V; Gunnarson, Björn E.; Loader, Neil J.; Massei, Nicolas; Seftigen, Kristina; Thomas, Elizabeth K.; Werner, Johannes; Andersson, Sofia; Berntsson, Annika; Luoto, Tomi P.; Nevalainen, Liisa; Saarni, Saija; Väliranta, Minna (Peer reviewed; Journal article, 2018-04-10)
      Reanalysis data show an increasing trend in Arctic precipitation over the 20th century, but changes are not homogenous across seasons or space. The observed hydroclimate changes are expected to continue and possibly ...

    • The Arctic Mid-Ocean Ridge Vent Fields - A valuable Resource for Marine Bioprospecting? 

      Wissuwa, Juliane (Doctoral thesis, 2016-05-25)
      The past decade the awareness for sustainability has come more and more into focus of society in terms of a need for eco-friendlier processes and renewable energies, new and better pharmaceuticals, and agricultural- and ...

    • An Arctic natural oil seep investigated from space to the seafloor 

      Panieri, Giuliana; Argentino, Claudio; Ramalho, Sofia P.; Vulcano, Francesca; Savini, Alessandra; Fallati, Luca; Brekke, Trond; Galimberti, Giulia; Riva, Federica; Balsa, João; Eilertsen, Mari Heggernes; Stokke, Runar; Steen, Ida Helene; Sahy, Diana; Kalenitchenko, Dimitri Stanislas Desire; Bünz, Stefan; Mattingsdal, Rune (Journal article; Peer reviewed, 2023)
      Due to climate change, decreasing ice cover and increasing industrial activities, Arctic marine ecosystems are expected to face higher levels of anthropogenic stress. To sustain healthy and productive ocean ecosystems, it ...

    • Arctic Ocean Amplification in a warming climate in CMIP6 models 

      Shu, Qi; Wang, Qiang; Årthun, Marius; Wang, Shizhu; Song, Zhenya; Zhang, Min; Qiao, Fangli (Journal article; Peer reviewed, 2022)
      Arctic near-surface air temperature warms much faster than the global average, a phenomenon known as Arctic Amplification. The change of the underlying Arctic Ocean could influence climate through its interaction with sea ...

    • Arctic Ocean carbon biogeochemistry under climate change and ocean acidification 

      Silyakova, Anna (Doctoral thesis, 2013-05-10)
      Human-induced CO2 emissions to the atmosphere cause climate change and ocean acidification. The strongest indicators of climate change and ocean acidification are expected to be found in the Arctic Ocean (AO). The AO area ...

    • Arctic Ocean CO2 uptake: An improved multiyear estimate of the air-sea CO2 flux incorporating chlorophyll a concentrations 

      Yasunaka, Sayaka; Siswanto, Eko; Olsen, Are; Hoppema, Mario; Watanabe, Eiji; Fransson, Agneta Ingrid; Chierici, Melissa; Murata, Akihiko; Lauvset, Siv Kari; Wanninkhof, Rik; Takahashi, Taro; Kosugi, Naohiro; Omar, Abdirahman; van Heuven, Steven; Mathis, Jeremy T. (Peer reviewed; Journal article, 2018-03-22)
      We estimated monthly air–sea CO2 fluxes in the Arctic Ocean and its adjacent seas north of 60∘ N from 1997 to 2014. This was done by mapping partial pressure of CO2 in the surface water (pCO2w) using a self-organizing map ...

    • The Arctic Ocean in a Fresh and Warm Future 

      Nummelin, Aleksi (Doctoral thesis, 2016-10-28)
      The Arctic Ocean remains one of the least known ocean regions due to its remote location, year-round sea ice cover, and harsh weather conditions. Today, knowledge of the Arctic atmosphere-sea ice-ocean system increases in ...

    • Arctic Ocean Response to Greenland Sea Wind Anomaliesin a Suite of Model Simulations 

      Muilwijk, Morven; Ilicak, Mehmet; Cornish, Sam B.; Danilov, Sergey; Gelderloos, Renske; Gerdes, Rüdiger; Haid, Verena; Haine, Thomas W.N.; Johnson, Helen L.; Kostov, Yavor; Kovács, Tamás; Lique, Camille; Marson, Juliana M.; Myers, Paul G.; Scott, Jeffery; Smedsrud, Lars H.; Talandier, Claude; Wang, Qiang (Peer reviewed; Journal article, 2019-08-04)
      Plain Language Summary: The North Atlantic Current is an extension of the Gulf Stream, which brings warm Atlantic Water northward as the current flows through the Nordic Seas. Eventually, it enters the cold deep Arctic ...

    • The Arctic Sea Ice - Melting During Summer or not Freezing in Winter? 

      Skaret, Henriette Bærheim (Master thesis, 2016-06-01)
      The Arctic sea ice cover has retreated rapidly during the last three decades, concurrent with recent global temperature increase both in the atmosphere and in the ocean. The sea ice cover has experienced a retreat in extent ...

    • Arctic sea ice altimetry - advances and current uncertainties 

      Zygmuntowska, Marta (Doctoral thesis, 2014-06-11)
      One of the most prominent features of global climate change is the reduction in Arctic sea ice thickness. The main tool to derive sea ice thickness on an Arctic wide scale is altimetry from satellites, yet current estimates ...

    • Arctic sea ice and climate change - will the sea ice disappear in this century? 

      Johannessen, Ola M.; Miles, Martin W. (Peer reviewed; Journal article, 2000)

    • Arctic sea ice and Eurasian climate: A review 

      Gao, Yongqi; Sun, Jianqi; Li, Fei; He, Shengping; Sandven, Stein; Yan, Qing; Zhang, Zhongshi; Lohmann, Katja; Keenlyside, Noel; Furevik, Tore; Suo, Lingling (Peer reviewed; Journal article, 2014-11-28)
      The Arctic plays a fundamental role in the climate system and has shown significant climate change in recent decades, including the Arctic warming and decline of Arctic sea-ice extent and thickness. In contrast to the ...

    • The Arctic sea ice extent change connected to Pacific decadal variability 

      Yang, Xiao-Ying; Wang, Guihua; Keenlyside, Noel (Journal article; Peer reviewed, 2020)
      After an unprecedented retreat, the total Arctic sea ice cover for the post-2007 period is characterized by low extent and a remarkable increase in annual cycle amplitude. We have identified the leading role of spring ...

    • Arctic Sea level Budget Assessment During the GRACE/Argo Time Period 

      Raj, Roshin Pappukutty; Andersen, Ole Baltazar; Johannessen, Johnny Andre; Benjamin, Gutknech; Chatterjee, Sourav; Rose, Stine; Bonaduce, Antonio; Horwath, Martin; Ranndal, Heidi; Richter, Kristin; Palanisamy, Hindumathi; Ludwigsen, Carsten; Bertino, Laurent; Nilsen, Jan Even Øie; Knudsen, Per; Hogg, Anna E.; Cazenave, Anny; Benveniste, Jérôme (Journal article; Peer reviewed, 2020)
      Sea level change is an important indicator of climate change. Our study focuses on the sea level budget assessment of the Arctic Ocean using: (1) the newly reprocessed satellite altimeter data with major changes in the ...

    • Arctic sediment routing during the Triassic: sinking the Arctic Atlantis 

      Gilmullina, Albina; Klausen, Tore Grane; Doré, Anthony George; Sirevaag, Hallgeir; Suslova, Anna; Eide, Christian Haug (Journal article; Peer reviewed, 2022)
      Opening of the Arctic Ocean has been the subject of much debate, and the placement of terranes in the Early Mesozoic remains a crucial part of this important discussion. Several continental terranes complicate the ...