Recent Submissions

  • Eurasia Cooling Linked to the Vertical Distribution of Arctic Warming 

    He, Shengping; Xu, Xinping; Furevik, Tore; Gao, Yongqi (Journal article; Peer reviewed, 2020)
    Observations show that deep Arctic winter warming, extending from surface to mid‐troposphere, has concurred with below‐average temperature over central Eurasia. Modeling studies focusing on the response to Arctic sea ice ...
  • Global Carbon Budget 2020 

    Friedlingstein, Pierre; O'Sullivan, Michael; Jones, Matthew W.; Andrew, Robbie; Hauck, Judith; Olsen, Are; Peters, Glen Philip; Peters, Wouter; Pongratz, Julia; Sitch, Stephen; Le Quéré, Corinne; Canadell, Josep G.; Ciais, Philippe; Jackson, Robert B.; Alin, Simone; Aragão, Luiz E.O.C.; Arneth, Almut; Arora, Vivek K.; Bates, Nicholas R.; Becker, Meike; Benoit-Cattin, Alice; Bittig, Henry C.; Bopp, Laurent; Bultan, Selma; Chandra, Naveen; Chevallier, Frédéric; Chini, Louise P.; Evans, Wiley; Florentie, Liesbeth; Forster, Piers M.; Gasser, Thomas; Gehlen, Marion; Gilfillan, Dennis; Gkritzalis, Thanos; Gregor, Luke; Gruber, Nicolas; Harris, Ian; Hartung, Kerstin; Haverd, Vanessa; Houghton, Richard A.; Ilyina, Tatiana; Jain, Atul K.; Joetzjer, Emilie; Kadono, Koji; Kato, Etsushi; Kitidis, Vassilis; Korsbakken, Jan Ivar; Landschützer, Peter; Lefevre, Nathalie; Lenton, Andrew; Lienert, Sebastian; Liu, Zhu; Lombardozzi, Danica; Marland, Gregg; Metzl, Nicolas; Munro, David; Nabel, Julia E.M.S.; Nakaoka, Shin-Ichiro; Niwa, Yosuke; O'Brien, Kevin M.; Ono, Tsuneo; Palmer, Paul I.; Pierrot, Denis; Poulter, Ben; Resplandy, Laure; Robertson, Eddy; Rödenbeck, Christian; Schwinger, Jörg; Séférian, Roland; Skjelvan, Ingunn; Smith, Adam J.P.; Sutton, Adrienne; Tanhua, Toste; Tans, Pieter P.; Tian, Hanqin; Tilbrook, Bronte; Van Der Werf, Guido; Vuichard, Nicolas; Walker, Anthony P.; Wanninkhof, Rik; Watson, Andrew; Willis, David; Wiltshire, Andy; Yuan, Wenping; Yue, Xu; Zaehle, Sönke (Journal article; Peer reviewed, 2020)
    Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate – the “global carbon budget” – is important to better ...
  • Warm Atlantic water explains observed sea ice melt rates north of Svalbard 

    Duarte, Pedro; Sundfjord, Arild; Meyer, Amelie; Hudson, Stephen; Spreen, Gunnar; Smedsrud, Lars Henrik (Journal article; Peer reviewed, 2020)
    Warm Atlantic water (AW) that flows northward along the Svalbard west coast is thought to transport enough heat to melt regional Arctic sea ice effectively. Despite this common assumption, quantitative requirements necessary ...
  • Amplification of synoptic to annual variability of West African summer monsoon rainfall under global warming 

    Akinsanola, Akintomide Afolayan; Zhou, Wen; Zhou, Tianjun; Keenlyside, Noel (Journal article; Peer reviewed, 2020)
    Increased knowledge of future changes in rainfall variability is needed to reduce vulnerability to potential impacts of global warming, especially in highly vulnerable regions like West Africa. While changes in mean and ...
  • Variability and decadal trends in the Isfjorden (Svalbard) ocean climate and circulation – An indicator for climate change in the European Arctic 

    Skogseth, Ragnheid; Olivier, Léa L.A.; Nilsen, Frank; Falck, Eva; Fraser, Neil J.; Tverberg, Vigdis; Ledang, Anna Birgitta; Vader, Anna; Jonassen, Marius Opsanger; Søreide, Janne; Cottier, Finlo Robert; Berge, Jørgen; Ivanov, Boris V.; Falk-Petersen, Stig (Journal article; Peer reviewed, 2020)
    Isfjorden, a broad Arctic fjord in western Spitsbergen, has shown significant changes in hydrography and inflow of Atlantic Water (AW) the last decades that only recently have been observed in the Arctic Ocean north of ...
  • Factors affecting extreme rainfall events in the South Pacific 

    Pariyar, Sunil Kumar; Keenlyside, Noel; Sorteberg, Asgeir; Spengler, Thomas; Bhatt, Bhuwan Chandra; Ogawa, Fumiaki (Journal article; Peer reviewed, 2020)
    Extreme rainfall events in the South Pacific are widespread and affected by various factors on different time scales. We use daily rainfall data from 20 stations over the South Pacific to investigate the characteristics ...
  • 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 ...
  • 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) ...
  • Detection and Timing of Gamma-Ray Pulsations from the 707 Hz Pulsar J0952−0607 

    Nieder, Lars; Clark, Colin J.; Bassa, Cees G.; Wu, Jason; Singh, Avneet; Donner, Julian Y.; Allen, Bruce; Breton, René P.; Dhillon, Vikrram S.; Eggenstein, Heinz Bernd; Hessels, Jason W.T.; Kennedy, Mark R.; Kerr, Matthew; Littlefair, Stuart P.; Marsh, Thomas R.; Sánchez, D. Mata; Papa, Maria Alessandra; Ray, Paul S.; Steltner, Benjamin; Verbiest, Joris P.W. (Journal article; Peer reviewed, 2019)
    The Low-Frequency Array radio telescope discovered the 707 Hz binary millisecond pulsar (MSP) J0952−0607 in a targeted radio pulsation search of an unidentified Fermi gamma-ray source. This source shows a weak energy flux ...
  • Stable Isotope Composition of Surface Vapour and Precipitation at the Southwest Coast of Norway 

    Weng, Yongbiao (Doctoral thesis, 2021-04-16)
    A better understanding of the water cycle has become even more crucial under the present condition of climate change. The stable isotopes of hydrogen and oxygen have been used for decades as powerful tracers to provide ...
  • Correcting the impact of the isotope composition on the mixing ratio dependency of water vapour isotope measurements with cavity ring-down spectrometers 

    Weng, Yongbiao; Touzeau, Alexandra; Sodemann, Harald (Journal article; Peer reviewed, 2020)
    Recent advances in laser spectroscopy enable high-frequency in situ measurements of the isotope composition of water vapour. At low water vapour mixing ratios, however, the measured stable water isotope composition can be ...
  • 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 ...
  • 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 (Journal article; Peer reviewed, 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 ...
  • The influence of terrain on the mean wind flow characteristics in a fjord 

    Cheynet, Etienne; Liu, Shengnan; Ong, Muk Chen; Jakobsen, Jasna Bogunovic; Snæbjörnsson, Jonas Thor; Gatin, Inno (Journal article; Peer reviewed, 2020)
    Flow conditions in complex terrains such as fjords are highly three-dimensional and thus not properly captured by the wind flow models developed for homogenous terrains. In the present study, we explore the potential of ...
  • Long-Term Statistics of Observed Bubble Depth Versus Modeled Wave Dissipation 

    Strand, Kjersti Opstad; Breivik, Øyvind; Pedersen, Geir; Vikebø, Frode Bendiksen; Sundby, Svein; Christensen, Kai Håkon (Journal article; Peer reviewed, 2020)
    Air bubble penetration depths are investigated with a bottom‐mounted echosounder at a seabed observatory in northern Norway. We compare a 1‐year time series of observed bubble depth against modeled and estimated turbulent ...
  • Arctic tidal current atlas 

    Baumann, Till Martin; Polyakov, Igor V.; Padman, Laurie; Danielson, Seth L.; Fer, Ilker; Janout, Markus; Williams, William; Pnyushkov, Andrey V. (Journal article; Peer reviewed, 2020)
    Tidal and wind-driven near-inertial currents play a vital role in the changing Arctic climate and the marine ecosystems. We compiled 429 available moored current observations taken over the last two decades throughout the ...
  • Tidally Forced Lee Waves Drive Turbulent Mixing Along the Arctic Ocean Margins 

    Fer, Ilker; Koenig, Zoé Charlotte; Kozlov, Igor E.; Ostrowski, Marek; Rippeth, Tom; Padman, L.; Bosse, Anthony; Kolås, Eivind (Journal article; Peer reviewed, 2020)
    In the Arctic Ocean, limited measurements indicate that the strongest mixing below the atmospherically forced surface mixed layer occurs where tidal currents are strong. However, mechanisms of energy conversion from tides ...
  • Intensification of Near‐Surface Currents and Shear in the Eastern Arctic Ocean 

    Polyakov, Igor V.; Rippeth, Tom; Fer, Ilker; Baumann, Till Martin; Carmack, Eddy C.; Ivanov, Vladimir V.; Janout, Markus; Padman, Laurie; Pnyushkov, A.V.; Rember, Robert (Journal article; Peer reviewed, 2020)
    A 15‐year (2004–2018) record of mooring observations from the upper 50 m of the ocean in the eastern Eurasian Basin reveals increased current speeds and vertical shear, associated with an increasing coupling between wind, ...
  • Impact of Assimilation of Radiosonde and UAV Observations from the Southern Ocean in the Polar WRF Model 

    Sun, Qizhen; Vihma, Timo; Jonassen, Marius Opsanger; Zhang, Zhanhai (Journal article; Peer reviewed, 2020)
    Weather forecasting in the Southern Ocean and Antarctica is a challenge above all due to the rarity of observations to be assimilated in numerical weather prediction (NWP) models. As observations are expensive and logistically ...
  • Necessary Conditions for Warm Inflow Toward the Filchner Ice Shelf, Weddell Sea 

    Daae, Kjersti; Hattermann, Tore; Darelius, Elin Maria K.; Mueller, Rachael D.; Naughten, Kaitlin A; Timmermann, Ralph; Hellmer, Hartmut H. (Journal article; Peer reviewed, 2020)
    Understanding changes in Antarctic ice shelf basal melting is a major challenge for predicting future sea level. Currently, warm Circumpolar Deep Water surrounding Antarctica has limited access to the Weddell Sea continental ...

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