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  • Hydrological impact of Middle Miocene Antarctic ice-free areas coupled to deep ocean temperatures 

    Bradshaw, Catherine; Langebroek, Petra; Lear, Caroline H.; Lunt, Daniel J.; Coxall, Helen; Sosdian, Sindia M.; De Boer, Agatha (Peer reviewed; Journal article, 2021)
    Oxygen isotopes from ocean sediments (δ18O) used to reconstruct past continental ice volumes additionally record deep water temperatures (DWTs). Traditionally, these are assumed to be coupled (ice-volume changes cause DWT ...
  • Correlations Between Sea‐Level Components Are Driven by Regional Climate Change 

    Lambert, Erwin; Le Bars, Dewi; Goelzer, Heiko; van de Wal, Roderik S.W. (Peer reviewed; Journal article, 2021)
    The accurate quantification of uncertainties in regional sea-level projections is essential for guiding policy makers. As climate models do not currently simulate total sea level, these uncertainties must be quantified ...
  • 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 ...
  • Future sea level change under CMIP5 and CMIP6 scenarios from the Greenland and Antarctic ice sheets 

    Payne, Antony; Nowicki, Sophie; Abe-Ouchi, Ayako; Agosta, Cécile; Alexander, Patrick; Albrecht, Torsten; Asay-Davis, Xylar; Aschwanden, Andy; Barthel, Alice; Bracegirdle, Thomas J.; Calov, Reinhard; Chambers, Christopher; Choi, Youngmin; Cullather, Richard; Cuzzone, Joshua; Dumas, Christophe; Edwards, Tamsin L.; Felikson, Denis; Fettweis, Xavier; Galton-Fenzi, Benjamin K.; Goelzer, Heiko; Gladstone, Rupert; Golledge, Nicholas R.; Gregory, Jonathan M.; Greve, Ralf; Hattermann, Tore; Hoffman, Matthew J.; Humbert, Angelika; Huybrechts, Philippe; Jourdain, Nicolas C.; Kleiner, Thomas; Munneke, Peter Kuipers; Larour, Eric; Le clec'h, Sebastien; Lee, Victoria; Leguy, Gunter; Lipscomb, William H.; Little, Christopher M.; Lowry, Daniel P.; Morlighem, Mathieu; Nias, Isabel; Pattyn, Frank; Pelle, Tyler; Price, Stephen F.; Quiquet, Aurélien; Reese, Ronja; Rückamp, Martin; Schlege, Nicole-Jeanne; Seroussi, Hélène; Shepherd, Andrew; Simon, Erika; Slater, Donald; Smith, Robin S.; Straneo, Fiammetta; Sun, Sainan; Tarasov, Lev; Truse, Luke D.; Van Breedam, Jonas; van de Wal, Roderik; van den Broeke, Michiel; Winkelmann, Ricarda; Zhao, Chen; Zhang, Tong; Zwinger, Thomas (Peer reviewed; Journal article, 2021)
    Projections of the sea level contribution from the Greenland and Antarctic ice sheets (GrIS and AIS) rely on atmospheric and oceanic drivers obtained from climate models. The Earth System Models participating in the Coupled ...
  • In situ recordings of large gelatinous spheres from NE Atlantic, and the first genetic confirmation of egg mass of Illex coindetii (Vérany, 1839) (Cephalopoda, Mollusca) 

    Ringvold, Halldis; Taite, Morag; Allcock, A. Louise; Vecchione, Michael; Péan, Michel; Sandulli, Roberto; Johnsen, Geir; Fjellheim, Arne; Bakke, Snorre; Sannæs, Hanne; Synnes, Ann-Elin; Coronel, José; Hansen, Martin; Olejar, Peter; Eliassen, Geir; Eliassen, Anita; Klungland, Karl (Peer reviewed; Journal article, 2021)
    In total, 90 gelatinous spheres, averaging one meter in diameter, have been recorded from ~ 1985 to 2019 from the NE Atlantic Ocean, including the Mediterranean Sea, using citizen science. More than 50% had a dark streak ...
  • Impacts of UV irradiance and medium-energy electron precipitation on the North Atlantic oscillation during the 11-year solar cycle 

    Guttu, Sigmund; Orsolini, Yvan; Stordal, Frode; Otterå, Odd Helge; Omrani, Nour-Eddine; Tartaglione, Nazario; Verronen, Pekka T.; Rodger, Craig J.; Clilverd, Mark A. (Peer reviewed; Journal article, 2021)
    Observational studies suggest that part of the North Atlantic Oscillation (NAO) variability may be attributed to the spectral ultra-violet (UV) irradiance variations associated to the 11-year solar cycle. The observed ...
  • DeepMIP: model intercomparison of early Eocene climatic optimum (EECO) large-scale climate features and comparison with proxy data 

    Lunt, Daniel J.; Bragg, F.; Chan, Wing-Lee; Hutchinson, D.K.; Ladant, Jean-Baptiste; Morozova, Polina A.; Niezgodzki, I.; Steinig, S.; Zhang, Zhongshi; Zhu, J; Abe-Ouchi, Ayako; Anagnostou, Eleni; de Boer, A.M.; Coxall, H.K.; Donnadieu, Y.; Foster, G.; Inglis, Gordon N.; Knorr, Gregor; Langebroek, Petra; Lear, Caroline H.; Lohmann, G.; Poulsen, C.J.; Sepulchre, Pierre; Jones, Tom Dunkley; Hollis, Chris J.; Huber, M.; Otto-Bliesner, Bette (Peer reviewed; Journal article, 2021)
    We present results from an ensemble of eight climate models, each of which has carried out simulations of the early Eocene climate optimum (EECO, ∼ 50 million years ago). These simulations have been carried out in the ...
  • Ventilation History of the Nordic Seas Deduced from Pelagic‐Benthic Radiocarbon Age Offsets 

    Telesiński, Maciej M.; Ezat, Mohamed; Muschitiello, Francesco; Bauch, Henning A.; Spielhagen, Robert F. (Peer reviewed; Journal article, 2021)
    Changes in ocean circulation are considered a major driver of centennial‐to‐millennial scale climate variability during the last deglaciation. Using four sediment records from the Nordic Seas we studied radiocarbon ventilation ...
  • The first multi-model ensemble of regional climate simulations at kilometer-scale resolution, part I: evaluation of precipitation 

    Ban, Nikolina; Caillaud, Cécile; Coppola, Erika; Pichelli, Emanuela; Sobolowski, Stefan Pieter; Adinolfi, Marianna; Ahrens, Bodo; Alias, Antoinette; Anders, Ivonne; Bastin, Sophie; Belušić, Danijel; Berthou, Ségolène; Brisson, Erwan; Cardoso, Rita M.; Chan, Steven C.; Christensen, Ole Bøssing; Fernández, Jesús; Fita, Lluís; Frisius, Thomas; Gašparac, Goran; Giorgi, Filippo; Goergen, Klaus; Haugen, Jan Erik; Hodnebrog, Øivind; Kartsios, Stergios; Katragkou, Eleni; Kendon, Elizabeth J.; Keuler, Klaus; Lavin-Gullon, Alvaro; Lenderink, Geert; Leutwyler, David; Lorenz, Torge; Maraun, Douglas; Mercogliano, Paola; Milovac, Josipa; Panitz, Hans-Jürgen; Raffa, Mario; Remedio, Armelle Reca; Schär, Christoph; Soares, Pedro M.M.; Srnec, Lidija; Steensen, Birthe Marie Rødssæteren; Stocchi, Paolo; Tölle, Merja H.; Truhetz, Heimo; Vergara-Temprado, Jesus; de Vries, Hylke; Warrach-Sagi, Kirsten; Wulfmeyer, Volker; Zander, Mar Janne (Peer reviewed; Journal article, 2021)
    Here we present the first multi-model ensemble of regional climate simulations at kilometer-scale horizontal grid spacing over a decade long period. A total of 23 simulations run with a horizontal grid spacing of ∼3 km, ...
  • Time-series of cloud-free sentinel-2 ndvi data used in mapping the onset of growth of central spitsbergen, svalbard 

    Karlsen, Stein Rune; Stendardi, Laura; Tømmervik, Hans; Nilsen, Lennart; Arntzen, Ingar; Cooper, Elisabeth J. (Peer reviewed; Journal article, 2021)
    The Arctic is a region that is expected to experience a high increase in temperature. Changes in the timing of phenological phases, such as the onset of growth (as observed by remote sensing), is a sensitive bio-indicator ...
  • Mapping Atmospheric Exposure of the Intertidal Zone with Sentinel-1 CSAR in Northern Norway 

    Haarpaintner, Jörg; Davids, Corine (Journal article; Peer reviewed, 2021)
    The intertidal zone (ITZ) is a highly dynamic and diverse coastal ecosystem under pressure that provides important eco-services. Being periodically under water makes it challenging to monitor, and the only possibility to ...
  • The response of terrestrial ecosystem carbon cycling under different aerosol-based radiation management geoengineering 

    Lee, Hanna; Muri, Helene; Ekici, Altug; Tjiputra, Jerry; Schwinger, Jörg (Peer reviewed; Journal article, 2021)
    Geoengineering has been discussed as a potential option to offset the global impacts of anthropogenic climate change and at the same time reach the global temperature targets of the Paris Agreement. Before any implementation ...
  • Lake sediments reveal large variations in flood frequency over the last 6,500 years in south-western Norway 

    Ekblom Johansson, Fanny Maria; Bakke, Jostein; Støren, Eivind Wilhelm Nagel; Paasche, Øyvind; Engeland, Kolbjørn; Arnaud, Fabien (Peer reviewed; Journal article, 2020)
    Lake sediments can retain imprints of past floods, enabling reconstructions that span well beyond instrumental time series. Time series covering thousands of years can document the natural range of flood variability, which ...
  • Large-scale features of Last Interglacial climate: results from evaluating the lig127k simulations for the Coupled Model Intercomparison Project (CMIP6)–Paleoclimate Modeling Intercomparison Project (PMIP4) 

    Otto-Bliesner, Bette L.; Brady, Esther C.; Zhao, Anni; Brierley, Chris M.; Axford, Yarrow; Capron, Emilie; Govin, Aline; Hoffman, Jeremy S.; Isaacs, Elizabeth; Kageyama, Masa; Scussolini, Paolo; Tzedakis, Polychronis C.; Williams, Charles J.R.; Wolff, Eric W.; Abe-Ouchi, Ayako; Braconnot, Pascale; Ramos Buarque, Silvana; Cao, Jian; de Vernal, Anne; Vittoria Guarino, Maria; Guo, Chuncheng; Legrande, Allegra N.; Lohmann, Gerrit; Meissner, Katrin J.; Menviel, Laurie; Morozova, Polina A.; Nisancioglu, Kerim H.; O'Ishi, Ryouta; Mélia, David Salas Y.; Shi, Xaoxu; Sicard, Marie; Sime, Louise C.; Stepanek, Christian; Tomas, Robert A.; Volodin, Evgeny; Yeung, Nicholas K.H.; Zhang, Qiong; Zhang, Zhongshi; Zheng, Weipeng (Peer reviewed; Journal article, 2021)
    The modeling of paleoclimate, using physically based tools, is increasingly seen as a strong out-of-sample test of the models that are used for the projection of future climate changes. New to the Coupled Model Intercomparison ...
  • The northern European shelf as an increasing net sink for CO2 

    Becker, Meike; Olsen, Are; Landschützer, Peter; Omar, Abdirahman; Rehder, Gregor; Rödenbeck, Christian; Skjelvan, Ingunn (Peer reviewed; Journal article, 2021)
    We developed a simple method to refine existing open-ocean maps and extend them towards different coastal seas. Using a multi-linear regression we produced monthly maps of surface ocean fCO2 in the northern European coastal ...
  • Intermittency of Arctic–mid-latitude teleconnections: stratospheric pathway between autumn sea ice and the winter North Atlantic Oscillation 

    Siew, Yu Feng; Li, Camille; Sobolowski, Stefan Pieter; King, Martin Peter (Peer reviewed; Journal article, 2020)
    There is an observed relationship linking Arctic sea ice conditions in autumn to mid-latitude weather the following winter. Of interest in this study is a hypothesized stratospheric pathway whereby reduced sea ice in the ...
  • Impact of strong and extreme El Niños on European hydroclimate 

    King, Martin Peter; Yu, Entao; Sillmann, Jana (Peer reviewed; Journal article, 2020)
    The question of European hydroclimate anomaly associated with El Niño-Southern Oscillation (ENSO) is revisited by composite analyses on data from Dai et al.’s Palmer Drought Severity Index, the Old World Drought Atlas ...
  • Centennial relationships between ocean temperature and Atlantic puffin production reveal shifting decennial trends 

    Hansen, Erpur S.; Sandvik, Hanno; Erikstad, Kjell E.; Yoccoz, Nigel; Anker-Nilssen, Tycho; Bader, Jürgen; Descamps, Sebastien; Hodges, Kevin; Mesquita, Michel d. S.; Reiertsen, Tone Kristin; Varpe, Øystein (Peer reviewed; Journal article, 2021)
    The current warming of the oceans has been shown to have detrimental effects for a number of species. An understanding of the underlying mechanisms may be hampered by the non-linearity and non-stationarity of the relationships ...
  • The Utrecht Finite Volume Ice-Sheet Model: UFEMISM (version 1.0) 

    Berends, Constantijn J.; Goelzer, Heiko; van de Wal, Roderik S.W. (Peer reviewed; Journal article, 2021)
    Improving our confidence in future projections of sea-level rise requires models that can simulate ice-sheet evolution both in the future and in the geological past. A physically accurate treatment of large changes in ...
  • Evaluating the biological pump efficiency of the Last Glacial Maximum ocean using d13C 

    Morée, Anne; Schwinger, Jörg; Ninnemann, Ulysses S; Jeltsch-Thommes, Aurich; Bethke, Ingo; Heinze, Christoph (Peer reviewed; Journal article, 2021)
    Although both physical and biological marine changes are required to explain the 100 ppm lower atmospheric pCO2 of the Last Glacial Maximum (LGM, ∼21 ka) as compared to preindustrial (PI) times, their exact contributions ...

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