• Clumped isotope thermometry in bivalve shells: a tool for reconstructing seasonal upwelling 

  Caldarescu, Diana Elena; Sadatzki, Henrik; Dahl, Carin Andersson; Schäfer, Priska; Fortunato, Helena; Meckler, Anna Nele (Peer reviewed; Journal article, 2020)

  Carbonate clumped isotope thermometry is a powerful tool for reconstructing paleotemperature and paleosalinity. Despite its broad application in biotic and abiotic materials, its use in paleoclimate studies has been limited ...

• A multi-decadal record of oceanographic changes of the past ~165 years (1850-2015 AD) from Northwest of Iceland 

  Simon, Margit Hildegard; Muschitiello, Francesco; Tisserand, Amandine Aline; Olsen, Are; Moros, Matthias; Perner, Kerstin; Bårdsnes, Siv Tone; Dokken, Trond Martin; Jansen, Eystein (Peer reviewed; Journal article, 2020)

  Extending oceanographic data beyond the instrumental period is highly needed to better characterize and understand multi-decadal to centennial natural ocean variability. Here, a stable isotope record at unprecedented ...

• 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 ...

• Sequential extraction procedure to obtain the composition of terrigenous detritus in marine sediments 

  Simon, Margit Hildegard; Babin, Daniel P.; Goldstein, Steven L.; Cai, Merry Yue; Liu, Tanzhuo; Han, Xibin; Haws, Anne A.; Johns, Matthew; Lear, Caroline H.; Hemming, Sidney R. (Peer reviewed; Journal article, 2020)

  The geochemical and isotopic composition of terrigenous clays from marine sediments can provide important information on the sources and pathways of sediments. In order to extract the detrital signal from bulk marine ...

• SIOS’s Earth Observation (EO), Remote Sensing (RS), and operational activities in response to COVID-19 

  Jawak, Shridhar D.; Andersen, Bo N.; Pohjola, Veijo; Godøy, Øystein; Hübner, Christiane E.; Jennings, Inger; Ignatiuk, Dariusz; Holmen, Kim; Sivertsen, Agnar; Hann, Richard; Tømmervik, Hans; Kääb, Andreas; Błaszczyk, Małgorzata; Salzano, Roberto; Luks, Bartłomiej; Høgda, Kjell Arild; Storvold, Rune; Nilsen, Lennart; Salvatori, Rosamaria; Krishnan, Kottekkatu Padinchati; Chatterjee, Sourav; Lorentzen, Dag Arne; Erlandsson, Rasmus; Lauknes, Tom Rune; Malnes, Eirik; Karlsen, Stein Rune; Enomoto, Hiroyuki; Fjæraa, Ann Mari; Zhang, Jie; Marty, Sabine; Nygård, Knut Ove; Lihavainen, Heikki (Journal article; Peer reviewed, 2021)

  Svalbard Integrated Arctic Earth Observing System (SIOS) is an international partnership of research institutions studying the environment and climate in and around Svalbard. SIOS is developing an efficient observing system, ...

• Atlantic Meridional Overturning Circulation and δ13C Variability During the Last Interglacial 

  Kessler, Augustin; Bouttes, Nathaelle; Roche, Didier M.; Ninnemann, Ulysses S; Galaasen, Eirik Vinje; Tjiputra, Jerry (Journal article; Peer reviewed, 2020)

  The Atlantic Meridional Overturning Circulation (AMOC) is thought to be relatively vigorous and stable during Interglacial periods on multimillennial (equilibrium) timescales. However, recent proxy (δ13C benthic) reconstructions ...

• Dynamics of spontaneous (multi) centennial‐scale variations of the Atlantic meridional overturning circulation strength during the last interglacial 

  Kessler, Augustin; Bouttes, Nathaelle; Roche, Didier M.; Ninnemann, Ulysses S; Tjiputra, Jerry (Peer reviewed; Journal article, 2020)

  Recent reconstructions of bottom water δ13C during the last interglacial (LIG) suggest short‐lived variability in the Atlantic meridional overturning circulation (AMOC). Spontaneous (multi) centennial‐scale variability of ...

• Processes Driving Global Interior Ocean pH Distribution 

  Lauvset, Siv Kari; Carter, B.R.; Pérez, Fiz F.; Jiang, L.-Q.; Feely, Richard A.; Velo, Antón; Olsen, Are (Peer reviewed; Journal article, 2020)

  Ocean acidification evolves on the background of a natural ocean pH gradient that is the result of the interplay between ocean mixing, biological production and remineralization, calcium carbonate cycling, and temperature ...

• Independent tephrochronological evidence for rapid and synchronous oceanic and atmospheric temperature rises over the Greenland stadial-interstadial transitions between ca. 32 and 40 ka b2k 

  Berben, Sarah M.P.; Dokken, Trond Martin; Abbott, Peter M.; Cook, Eliza; Sadatzki, Henrik; Simon, Margit Hildegard; Jansen, Eystein (Journal article; Peer reviewed, 2020)

  Understanding the dynamics that drove past abrupt climate changes, such as the Dansgaard-Oeschger (DO) events, depends on combined proxy evidence from disparate archives. To identify leads, lags and synchronicity between ...

• New flood frequency estimates for the largest river in Norway based on the combination of short and long time series 

  Engeland, Kolbjørn; Aano, Anna; Steffensen, Ida Grøndahl; Støren, Eivind Wilhelm Nagel; Paasche, Øyvind (Peer reviewed; Journal article, 2020)

  The Glomma River is the largest in Norway, with a catchment area of 154 450 km2. People living near the shores of this river are frequently exposed to destructive floods that impair local cities and communities. Unfortunately, ...

• 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 ...

• Evaluation of Multi-Satellite Precipitation Datasets and Their Error Propagation in Hydrological Modeling in a Monsoon-Prone Region 

  Chen, Jie; Li, ZiYi; Li, Lu; Wang, Jialing; Qi, Wenyan; Xu, Chong-Yu; Kim, Jong-Suk (Journal article; Peer reviewed, 2020)

  This study comprehensively evaluates eight satellite-based precipitation datasets in streamflow simulations on a monsoon-climate watershed in China. Two mutually independent datasets—one dense-gauge and one gauge-interpolated ...

• Projecting circum-Arctic excess-ground-ice melt with a sub-grid representation in the Community Land Model 

  Cai, Lei; Lee, Hanna; Aas, Kjetil Schanke; Westermann, Sebastian (Journal article; Peer reviewed, 2020)

  To address the long-standing underrepresentation of the influences of highly variable ground ice content on the trajectory of permafrost conditions simulated in Earth system models under a warming climate, we implement a ...

• Relating model bias and prediction skill in the equatorial Atlantic 

  Counillon, Francois; Keenlyside, Noel; Toniazzo, Thomas; Koseki, Shunya; Demissie, Teferi Dejene; Bethke, Ingo; Wang, Yiguo (Peer reviewed; Journal article, 2021)

  We investigate the impact of large climatological biases in the tropical Atlantic on reanalysis and seasonal prediction performance using the Norwegian Climate Prediction Model (NorCPM) in a standard and an anomaly coupled ...

• A multi-model CMIP6-PMIP4 study of Arctic sea ice at 127 ka: sea ice data compilation and model differences 

  Kageyama, Masa; Sime, Louise C.; Sicard, Marie; Guarino, Maria-Vittoria; De Vernal, A; Stein, Ruediger; Schroeder, david; Malmierca-Vallet, Irene; Abe-Ouchi, Ayako; Bitz, Cecilia M.; Braconnot, Pascale; Brady, Esther C.; Cao, Jian; Chamberlain, Matthew; Feltham, Danny; Guo, Chuncheng; Legrande, Allegra N.; Lohmann, Gerrit; Meissner, Katrin; Menviel, Laurie; Nisancioglu, Kerim Hestnes; Otto-Bliesner, Bette L.; O'ishi, Ryouta; Ramos Buarque, Silvan; Salas y Mélia, David; Sherriff-Tadano, Sam; Stroeve, Julienne C.; Shi, Xiaoxu; Sun, Bo; Thomas, Robert; Volodin, Evgeny; Yeung, Nicholas K.H.; Zhang, Qiong; Zhang, Zhongshi; Zheng, Weipeng; Ziehn, Tilo (Peer reviewed; Journal article, 2021)

  The Last Interglacial period (LIG) is a period with increased summer insolation at high northern latitudes, which results in strong changes in the terrestrial and marine cryosphere. Understanding the mechanisms for this ...

• The Pliocene Model Intercomparison Project Phase 2: large-scale climate features and climate sensitivity 

  Haywood, Alan M.; Tindall, Julia C.; Dowsett, Harry J.; Dolan, Aisling M.; Foley, Kevin M.; Hunter, Stephen J.; Hill, Daniel J.; Chan, Wing-Le; Abe-Ouchi, Ayako; Stepanek, Christian; Lohmann, Gerrit; Chandan, Deepak; Peltier, Richard W.; Tan, Ning; Contoux, Camille; Ramstein, Gilles; Li, Xiangyu; Zhang, Zhongshi; Guo, Chuncheng; Nisancioglu, Kerim Hestnes; Zhang, Qiong; Li, Qiang; Kamae, Youichi; Chandler, Mark A.; Sohl, Linda E.; Otto-Bliesner, Bette L.; Feng, Ran; Brady, Esther C.; von der Heydt, Anna S.; Baatsen, Michiel L. J.; Lunt, Daniel J (Peer reviewed; Journal article, 2020)

  The Pliocene epoch has great potential to improve our understanding of the long-term climatic and environmental consequences of an atmospheric CO2 concentration near ~ 400 parts per million by volume. Here we present the ...

• Comparison of past and future simulations of ENSO in CMIP5/PMIP3 and CMIP6/PMIP4 models 

  Brown, Josephine; Brierley, Chris; Soon-Il, An; Guarino, Maria-Vittoria; Stevenson, Samantha; Williams, Charles J. R.; Zhang, Qiong; Zhao, anni; Abe-Ouchi, Ayako; Braconnot, Pascale; Brady, Esther C.; Chandan, Deepak; D'Agostino, Roberta; Guo, Chuncheng; Legrande, Allegra N.; Lohmann, Gerrit; Morozova, Polina A.; Ohgaito, Rumi; O'ishi, Ryouta; Otto-Bliesner, Bette L.; Peltier, W. Richard; Shi, Xiaoxu; Sime, Louise C.; Volodin, Evgeny M.; Zhang, Zhongshi; Zheng, Weipeng (Peer reviewed; Journal article, 2020)

  El Niño–Southern Oscillation (ENSO) is the strongest mode of interannual climate variability in the current climate, influencing ecosystems, agriculture, and weather systems across the globe, but future projections of ENSO ...

• An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2020 

  Olsen, Are; Lange, Nico; Key, Robert M.; Tanhua, Toste; Bittig, Henry C.; Kozyr, Alexander; Alvarez, Marta; Azetsu-Scott, Kumiko; Becker, Susan; Brown, Peter; Carter, Brendan R; Da Cunha, Leticia Cotrim; Feely, Rickhard; van Heuven, Steven; Hoppema, Mario; Ishii, Masao; Jeansson, Emil; Jutterström, Sara; Landa, Camilla Stegen; Lauvset, Siv Kari; Michaelis, Patrick; Murata, Akihiko; Perez, F. Fiz; Pfeil, Gerrit Benjamin; Schirnick, Carsten; Steinfeldt, Reiner; Suzuki, Toru; Tilbrook, Bronte; Velo, Antón; Wanninkhof, Rik (Peer reviewed; Journal article, 2020)

  The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical data, with an emphasis on seawater inorganic carbon chemistry and related ...

• Overview of the Norwegian Earth System Model (NorESM2) and key climate response of CMIP6 DECK, historical, and scenario simulations 

  Seland, Øyvind; Bentsen, Mats; Oliviè, Dirk Jan Leo; Toniazzo, Thomas; Gjermundsen, Ada; Graff, Lise Seland; Debernard, Jens Boldingh; Gupta, Alok Kumar; He, Yan-Chun; Kirkevåg, Alf; Schwinger, Jörg; Tjiputra, Jerry; Aas, Kjetil Schanke; Bethke, Ingo; Fan, Yuanchao; Griesfeller, Jan; Grini, Alf; Guo, Chuncheng; Ilicak, Mehmet; Karset, Inger Helene H.; Landgren, Oskar Andreas; Liakka, Johan; Moseid, Kine Onsum; Nummelin, Aleksi; Spensberger, Clemens; Tang, Hui; Zhang, Zhongshi; Heinze, Christoph; Iversen, Trond; Schulz, Michael (Peer reviewed; Journal article, 2020)

  The second version of the coupled Norwegian Earth System Model (NorESM2) is presented and evaluated. NorESM2 is based on the second version of the Community Earth System Model (CESM2) and shares with CESM2 the computer ...

• 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 (Peer reviewed; Journal article, 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 ...

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