• Anthropogenic and environmental drivers of vegetation change in southeastern Norway during the Holocene 

      ter Schure, Anneke Theresia Maria; Bajard, Manon Juliette Andree; Loftsgarden, Kjetil; Høeg, Helge Irgens; Ballo, Eirik Gottschalk; Bakke, Jostein; Støren, Eivind Wilhelm Nagel; Iversen, Frode; Kool, Anneleen; Brysting, Anne Krag; Krüger, Kirstin; Boessenkool, Sanne (Journal article; Peer reviewed, 2021)
      Uncovering anthropogenic and environmental drivers behind past biological change requires integrated analyses of long-term records from a diversity of disciplines. We applied an interdisciplinary approach exploring effects ...
    • 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 ...
    • Atmospheric circulation over Europe during the Younger Dryas 

      Rea, B.R.; Pellitero, R.; Spagnolo, M.; Hughes, P.D.; Ivy-Ochs, S.; Renssen, Hans; Ribolini, A.; Bakke, Jostein; Lukas, S.; Braithwaite, R.J. (Journal article; Peer reviewed, 2020)
      The Younger Dryas (YD) was a period of rapid climate cooling that occurred at the end of the last glaciation. Here, we present the first palaeoglacier-derived reconstruction of YD precipitation across Europe, determined ...
    • Climate in Svalbard 2100 

      Adakudlu, Muralidhar; Andresen, J; Bakke, Jostein; Beldring, S.; Benestad, Rasmus; Bilt, Willem van der; Bogen, J.; Borstad, Christopher Paul; Breili, Kristian; Breivik, Øyvind; Børsheim, Knut Yngve; Christiansen, Hanne H; Dobler, Andreas; Engeset, Rune; Frauenfelder, Regula; Gerland, Sebastian; Gjelten, Herdis Motrøen; Gundersen, Jeanette; Isaksen, Ketil; Jaedicke, Christian; Kierulf, Halfdan; Kohler, Jack; Li, H.; Lutz, J.; Melvold, Kjetil; Mezghani, Abdelkader; Nilsen, F.; Nilsen, Irene Brox; Nilsen, Jan Even Øie; Pavlova, O.; Ravndal, Ole; Risebrobakken, Bjørg; Saloranta, Tuomo; Sandven, Stein; Schuler, Thomas; Simpson, Matthew James Ross; Skogen, Morten D.; Smedsrud, Lars H.; Sund, Monica; Vikhamar-Schuler, D.; Westermann, Sebastian; Wong, Wai Kwok (Research report, 2019-01)
      This report was commissioned by the Norwegian Environment Agency in order to provide basic information for use in climate change adaptation in Svalbard. It includes descriptions of historical, as well as projections for ...
    • Disentangling source of moisture driving glacier dynamics and identification of 8.2 ka event: evidence from pore water isotopes, Western Himalaya 

      Kumar, Om; Ramanathan, Al L.; Bakke, Jostein; Kotlia, Bata; Shrivastava, J. P. (Journal article; Peer reviewed, 2020)
      Two atmospheric circulation patterns, the Indian Summer Monsoon (ISM) and mid-latitude Westerlies control precipitation and thus glacier variability in the Himalaya. However, the role of the ISM and westerlies in controlling ...
    • Early Holocene Temperature Oscillations Exceed Amplitude of Observed and Projected Warming in Svalbard Lakes 

      Bilt, Willem van der; D'Andrea, William J.; Werner, Johannes; Bakke, Jostein (Journal article; Peer reviewed, 2019)
      Arctic climate is uniquely sensitive to ongoing warming. The feedbacks that drive this amplified response remain insufficiently quantified and misrepresented in model scenarios of future warming. Comparison with paleotemperature ...
    • Glacier and ocean variability in Ata Sund, west Greenland, since 1400 CE 

      Ekblom Johansson, Fanny Maria; Wangner, David J; Bakke, Jostein; Snowman Andresen, Camilla; Støren, Eivind Wilhelm Nagel; Schmidt, Sabine; Vieli, Andreas (Journal article; Peer reviewed, 2020)
      To improve knowledge of marine-terminating glaciers in western Greenland, marine sediment cores from the Ata Sund fjord system, hosting two outlet glaciers, Eqip Sermia and Kangilerngata Sermia, were investigated. The main ...
    • Holocene glacier variability and Neoglacial hydroclimate at Ålfotbreen, western Norway 

      Gjerde, Marthe; Bakke, Jostein; Vasskog, Kristian; Nesje, Atle; Hormes, Anne (Peer reviewed; Journal article, 2016-02)
      Glaciers and small ice caps respond rapidly to climate perturbations (mainly winter precipitation, and summer temperature), and the mass-balance of glaciers located in western Norway is governed mainly by winter precipitation ...
    • Holocene multi-proxy environmental reconstruction from lake Hakluytvatnet, Amsterdamøya Island, Svalbard (79.5°N) 

      Gjerde, Marthe; Bakke, Jostein; D'Andrea, William J.; Balascio, Nicholas L.; Bradley, Raymond S.; Vasskog, Kristian; Ólafsdóttir, Sædis; Torgeir Opeland, Røthe; Perren, Bianka B.; Hormes, Anne (Journal article, 2018-03)
      High resolution proxy records of past climate are sparse in the Arctic due to low organic production that restricts the use of radiocarbon dating and challenging logistics that make data collection difficult. Here, we ...
    • 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 (Journal article; Peer reviewed, 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 ...
    • Late Glacial mountain glacier culmination in Arctic Norway prior to the Younger Dryas 

      Wittmeier, Hella Elisa; Schaefer, Joerg M.; Bakke, Jostein; Rupper, Summer; Paasche, Øyvind; Schwartz, Roseanne; Finkel, Robert C. (Journal article; Peer reviewed, 2020)
      Climate changes during the Late Glacial period (LG; 15-11 ka) as recorded in Greenland and Antarctic ice cores show a bipolar pattern. Between 14.5 ka and 13 ka ago, the northern latitudes experienced the Bølling/Allerød ...
    • Late Holocene canyon-carving floods in northern Iceland were smaller than previously reported 

      Bilt, Willem Godert Maria van der; Barr, Iestyn D.; Berben, Sarah Miche Patricia; hennekam, rick; Lane, Timothy P.; Adamson, Kathryn; Bakke, Jostein (Journal article; Peer reviewed, 2021)
      Catastrophic floods have formed deep bedrock canyons on Earth, but the relationship between peak discharge and bedrock erosion is not clearly understood. This hinders efforts to use geological evidence of these cataclysmic ...
    • Long‑term demise of sub‑Antarctic glaciers modulated by the Southern Hemisphere Westerlies 

      Bakke, Jostein; Paasche, Øyvind; Schaefer, Joerg M.; Timmermann, Axel (Journal article; Peer reviewed, 2021)
      The accelerated melting of ice on the Antarctic Peninsula and islands in the sub-Antarctic suggests that the cryosphere is edging towards an irreversible tipping point. How unusual is this trend of ice loss within the frame ...
    • Mapping sediment–landform assemblages to constrain lacustrine sedimentation in a glacier-fed lake catchment in northwest Spitsbergen 

      Bilt, Willem van der; Balascio, Nicholas L.; Bakke, Jostein (Peer reviewed; Journal article, 2015-10-24)
      Changes in the deposition of fine-grained rock-flour in glacier-fed lakes reflect glacier variability. This meltwater-driven signal is, however, often overprinted by other processes. To constrain the signature of lacustrine ...
    • Pervasive cold ice within a temperate glacier – implications for glacier thermal regimes, sediment transport and foreland geomorphology. 

      Reinardy, Benedict T.I.; Booth, Adam D; Hughes, Anna L.C.; Boston, Clare M.; Åkesson, Henning; Bakke, Jostein; Nesje, Atle; Giesen, Rianne H.; Pearce, Danni (Peer reviewed; Journal article, 2019-03-07)
      This study suggests that cold-ice processes may be more widespread than previously assumed, even within temperate glacial systems. We present the first systematic mapping of cold ice at the snout of the temperate glacier ...
    • Reconstruction of glacier variability from lake sediments reveals dynamic Holocene climate in Svalbard 

      Bilt, Willem van der; Bakke, Jostein; Vasskog, Kristian; D`Andrea, William; Bradley, Raymond S.; Ólafsdóttir, Sædis (Peer reviewed; Journal article, 2015-09-12)
      The Arctic is warming faster than anywhere else on Earth. Holocene proxy time-series are increasingly used to put this amplified response in perspective by understanding Arctic climate processes beyond the instrumental ...
    • Sedimentary ancient DNA shows terrestrial plant richness continuously increased over the Holocene in northern Fennoscandia 

      Rijal, Dilli Prasad; Heintzman, Peter D.; Lammers, Youri; Yoccoz, Nigel; Lorberau, Kelsey; Pitelkova, Iva; Goslar, Tomasz; Murguzur, Francisco Javier Ancin; Salonen, J. Sakari; Helmens, Karin F.; Bakke, Jostein; Edwards, Mary E.; Alm, Torbjørn; Bråthen, Kari Anne; Brown, Antony; Alsos, Inger Greve (Journal article; Peer reviewed, 2021)
      The effects of climate change on species richness are debated but can be informed by the past. Here, we generated a sedimentary ancient DNA dataset covering 10 lakes and applied novel methods for data harmonization. We ...