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Trond Martin Dokken's picture

Trond Martin Dokken

Bjerknes Centre for Climate Research
  • E-mailTrond.Dokken@uib.no
  • Phone+47 55 58 98 01+47 975 64 402
  • Visitor Address
    Allegt. 55
  • Postal Address
    Postboks 7800
    5007 BERGEN
Academic article
  • 2020. Tephra horizons identified in the western North Atlantic and Nordic Seas during the Last Glacial Period: Extending the marine tephra framework. Quaternary Science Reviews.
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  • 2019. Sea ice variability in the southern Norwegian Sea during glacial Dansgaard-Oeschger climate cycles. Science Advances.
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  • 2019. Insolation and Glacial Meltwater Influence on Sea‐Ice and Circulation Variability in the Northeastern Labrador Sea During the Last Glacial Period. Paleoceanography and Paleoclimatology. 1689-1709.
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  • 2019. High resolution benthic Mg/Ca temperature record of the intermediate water in the Denmark Strait across D-O stadial-interstadial cycles. Paleoceanography and Paleoclimatology. 1169-1185.
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  • 2019. Deep-water circulation changes lead North Atlantic climate during deglaciation. Nature Communications. 1-10.
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  • 2019. Consistently dated Atlantic sediment cores over the last 40 thousand years. Scientific Data. 1-12.
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  • 2019. Consistent fluctuations in intermediate water temperature off the coast of Greenland and Norway during Dansgaard-Oeschger events. Quaternary Science Reviews. 16 pages.
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  • 2018. Relative timing of precipitation and ocean circulation changes in the western equatorial Atlantic over the last 45 kyr. Climate of the Past. 1315-1330.
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  • 2018. Ocean-ice sheet interaction along the SE Nordic Seas margin from 35 to 15 ka BP. Marine Geology. 99-117.
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  • 2015. Atlantic Ocean circulation changes preceded millennial tropical South America rainfall events during the last glacial. Geophysical Research Letters. 411-418.
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  • 2015. An Atlantic-Pacific ventilation seesaw across the last deglaciation. Earth and Planetary Science Letters. 237-244.
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  • 2014. Paleoceanographic reconstruction of the western equatorial Atlantic during the last 40 kyr. Palaeogeography, Palaeoclimatology, Palaeoecology. 14-20.
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  • 2014. Constraints on surface seawater oxygen isotope change between the Last Glacial Maximum and the Late Hologene. Quaternary Science Reviews. 102-111.
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  • 2014. A brief history of climate e the northern seas from the last Glacial Maximum to global warming. Quaternary Science Reviews. 225-246.
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  • 2013. Refining benthic foraminiferal Mg/Ca-temperature calibrations using core-tops from the western tropical Atlantic: Implication for paleotemperature estimation. Geochemistry Geophysics Geosystems. 929-946.
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  • 2013. Dansgaard-Oeschger cycles: Interactions between ocean and sea ice intrinsic to the Nordic seas. Paleoceanography. 491-502.
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  • 2011. Interhemispheric symmetry of the tropical African rainbelt over the past 23,000 years. Nature Geoscience. 42-45.
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  • 2011. Heinrich event 1: an example of dynamical ice-sheet reaction to oceanic changes. Climate of the Past. 1297-1306.
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  • 2011. Early Holocene temperature variability in the Nordic Seas: The role of oceanic heat advection versus changes in orbital forcing. Paleoceanography.
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  • 2010. A reconstruction of sea surface warming in the northern North Atlantic during MIS3 ice-rafting events. Quaternary Science Reviews. 1791-1800.
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  • 2009. Rapid oceanic and atmospheric changes during the Younger Dryas cold period. Nature Geoscience. 202-205.
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  • 2009. Constraints on the magnitude and patterns of ocean cooling at the Last Glacial Maximum. Nature Geoscience. 127-132.
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  • 2008. Water mass properties and exchange between the Nordic seas and the northern North Atlantic during the period 23-6 ka: Benthic oxygen isotopic evidence. Paleoceanography.
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  • 2007. Inception of the Northern European ice sheet due to contrasting ocean and insolation forcing. Quaternary Research. 128-135.
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  • 2007. Climate of the Last Glacial Maximum: sensitivity studies and model-data comparison with the LOVECLIM coupled model. Climate of the Past. 205-224.
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  • 2006. The penultimate deglaciation: High-resolution paleoceanographic evidence from a north-south transect along the eastern Nordic Seas. Earth and Planetary Science Letters. 505-516.
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  • 2006. Mg/Ca ratios in the planktonic foraminifer Neogloboquadrina pachyderma (sinistral) in the northern North Atlantic/Nordic Seas. Geochemistry Geophysics Geosystems. 18 pages.
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  • 2006. Comparing proxies for the reconstruction of LGM sea-surface conditions in the northern North Atlantic. Quaternary Science Reviews. 2820-2834.
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  • 2005. Bjerknes Centre for Climate Research - combining past, present and future climate change. Norsk Geologisk Tidsskrift. 33-44.
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  • 2005. A global compilation of late Holocene planktonic foraminiferal delta O-18: relationship between surface water temperature and delta O-18. Quaternary Science Reviews. 7-9.
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  • 2004. Quartz content and the quartz-to-plagioclase ratio determined by X-ray diffraction: a proxy for ice rafting in the northern North Atlantic? Earth and Planetary Science Letters. 389-401.
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  • 2003. Researchers Discuss Abrupt Climate Change: Ice Sheets and Oceans in Action. EOS. 189-193.
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  • 2001. Abrupt climatic change during the last interglacial-glacial cycle in the polar North Atlantic. Marine Geology. 121-137.
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  • 1998. Fluctuations of the Svalbard-Barents Sea Ice Sheet during the last 150 000 years. Quaternary Science Reviews. 11-42.
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  • 1996. The growth and decay of the Late Weichselian ice sheet in western Svalbard and adjacent areas based on provenance studies of marine sediments. Quaternary Research. 303-316.
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  • 1996. The growth and decay of the Late Weichselian Ice Sheet in western Svaldbard and adjecent areas based on provenance studies of marine sediments. Journal of Quaternary Science. 303-916.
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Report
  • 2008. Marine cruise report, Project RETRO: Response of Tropical Atlantic Surface and Intermediate Waters to Changes in Atlantic Meridional Overturning Circulation. .
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  • 2002. Paleoenvironmental Studies - Upper Storegga Slide Events: Status report to Norsk Hydro. .
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Lecture
  • 2019. Sea-surface conditions, iceberg transport and ice-sheet instabilities during the last Glacial witnessed south of Greenland.
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  • 2019. Intermediate water in the Nordic Seas during Greenland Stadials.
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  • 2019. Glacial sea ice variability in the Norwegian Sea during abrupt climate changes.
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  • 2018. Why did the iceberg discharge of Heinrich events 5 and 6 not reach southern Greenland.
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  • 2018. Sea ice changes and stratification changes in the Nordic Seas during MIS 3.
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  • 2018. A tephra-based synchronisation of a marine and ice core palaeo record spanning 32 - 40 ka b2k.
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  • 2016. Coherent Sea Ice Variations in the Nordic Seas and Abrupt Greenland Climate Changes over Dansgaard-Oeschger Cycles.
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Popular scientific lecture
  • 2009. New Mg/Ca calibration of benthic foraminiferal species: mapping of the tropical thermocline dynamics.
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  • 2001. Havbunnen: Et vindu til fortidens klimaendringer.
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Academic lecture
  • 2019. Dynamical sequence of ocean, atmosphere, and sea ice changes during an abrupt stadial-to-interstadial climate transition.
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  • 2019. A new era of abrupt climate change - perspectives from Marine Isotope Stage 3.
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  • 2019. A multi-decadal record of oceanographic changes of the past 150 years (1850-2015 AD) from North of Iceland.
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  • 2017. Role of sea ice in abrupt climate changes following the last glacial maximum.
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  • 2017. Millennial-scale ocean and climate variability in the glacial Nordic Seas and South China Sea.
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  • 2015. The Fennoscandian ice sheet as a trigger for Dansgaard-Oeschger cycles.
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  • 2015. A brief history of climate – the northern seas from the Last Glacial Maximum to global warming.
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  • 2014. A brief history of climate – the northern seas from the Last Glacial Maximum to global warming.
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  • 2013. Simulated and reconstructed Atlantic gyre circulation and its relationship with the North Atlantic Oscillation during the past 600 years.
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  • 2013. Mid-Holocene amplification of century scale climate variability potential interhemispheric linkages.
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  • 2013. Dansgaard-Oeschger cycles: interactions between ocean and sea ice intrinsic to the Nordic Seas.
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  • 2012. North Atlantic Multidecadal variability over the last millenia.
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  • 2012. Benthic S18O signature of dense brine from sea ice formation in the North Atlantic.
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  • 2011. What has been achieved, and future perspective for RETRO.
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  • 2011. Impact of freshwater from the Fennoscandian Ice Sheet vs. freshwater from the Laurentide Ice Sheet.
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  • 2011. A new model of Dansgaard-Oeschger cycles: the Nordic ice machine.
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  • 2010. On the role of North Atlantic sea ice displacements in Dansgaard-Oeschger cycles.
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  • 2010. Distinguishing early Holocene temperature changes caused by northward oceanic heat advection from the oceanic temperature response to changes in orbital forcing.
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  • 2010. A new model of Dansgaard-Oeschger cycles: the Nordic ice machine.
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  • 2010. A conceptual model for D-O events: a Fennoscandian trigger.
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  • 2009. Status activity report and future plans from RG1.
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  • 2009. Rapid oceanic and atmospheric changes at the end of the younger Dryas cold period.
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  • 2009. Nouvelle calibration Mg/Ca-Temperature appliquée aux foraminfêres benthiques dynamique de la thermocline dans les tropiques.
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  • 2009. New cores-top Mg/Ca calibration of multiple benthic foraminiferal species: thermometry of the thermocline water in Tropical western Atlantic.
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  • 2009. New Mg/Ca calibration of benthic foraminiferal species: mapping of the tropical thermocline dynamics.
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  • 2009. Link between intermediate water hydrology and meridional overturning circulation in the North Atlantic region.
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  • 2008. The Norwegian Ice Machine: - a conceptual model of D-O events.
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  • 2008. Ocean-atmosphere flickering ended the Younger Dryas cold period.
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  • 2008. High latitude rapid climate changes: A New Model for Dansgaard-Oeschger events and cycles,.
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  • 2008. High latitude rapid climate changes, and linkages to low latitude.
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  • 2008. A New Model for Dansgaard-Oeschger events and cycles: the Norwegian ice machine.
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  • 2008. A New Model for Dansgaard-Oeschger events and cycles.
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  • 2007. Titanium concentration in lake sediments as a measure for glacier activity during the Younger Dryas in South Western Norway.
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  • 2007. On the evidence linking ocean circulation to (rapid) climate change.
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  • 2007. Ocean core evidence for past THC changes.
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  • 2007. Ocean Dynamics and feedbacks behind millennial scale- and rapid climate changes in the past.
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  • 2007. North Atlantic Holocene climate variability.
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  • 2007. A conceptual model for D-O events: role of atmospheric circulation and duration of warm interstadials.
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  • 2006. Spatial asymmetry of the winter atmospheric circulation and its relation to the ocean.
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  • 2006. Ocean-atmosphere interaction.
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  • 2006. Conceptual model on rapid climate change.
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  • 2005. The climate signal in glaciers -evidence for shifting North Atlantic atmosphere circulation.
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  • 2005. Hypothesis of Fennoscandian ice sheet linkage during the last glacial and termination 1 between Milankowitch forcing and global climate.
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  • 2005. Atmospheric pressure of the North Atlantic – 6000 years seen from Norwegian glaciers.
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  • 2005. A paleoperspective on the Barents Sea climate development through the Holocene, preliminary results.
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  • 2005. A northern hemisphere high latitude tropical perspective from paleo-records.
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  • 2004. The Nordic Seas; a gateway between the North Atlantic and Arctic Oceans.
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  • 2004. On reconstructing the thermocline in the Faroe-Shetland Channel from paleo proxies, and estimating the associated fluxes.
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  • 2004. Ice-sheet ocean interactions in the North Atlantic, mechanisms and impacts.
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  • 2004. Do climate changes in the North Atlantic region trigger changes in the tropical Atlantic - or vice versa?
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  • 2003. analyses of abrupt changes in the past.
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  • 2003. With what precision can paleodata reconstruct circulation changes in the Nordic Ses?
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  • 2003. Tropical influence on high latitude climate.
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  • 2003. Millennial scale climate variability during marine isotope stage 5: Evidence from the Nordic Seas.
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  • 2003. Millenial scale climate variability during marine isotope stage 5: evidence from the Nordic Seas.
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  • 2003. High northern latitude and tropical atlantic ocean climate linkages during the last deglaciation. EAE03-A-12609.
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  • 2003. Evidence for rapid reorganisations in thermohaline circulation from paleorecords in the Atlantic Ocean: A review.
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  • 2001. Decadal to century scale climate variability in the North Atlantic and Nordic Seas during the late Glacial and the Holocene - IMAGES results.
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  • 1998. Eemian versus Stage 3 and Holocene variability in the Nordic Seas - how different were they?
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  • 1997. Thermohaline Cirulation and Rapid Climate Change in the Last Deglaciation: Variable Role of Convection and Brine Formation.
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  • 1997. A continuous record of Northern Hemisphere glaciation from ODP Leg 162.
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Reader opinion piece
  • 2010. Stredet som regulerer varme og kulde. Aftenposten (morgenutg. : trykt utg.).
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  • 2007. Tull om klimaforskning. Bergens Tidende.
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Academic anthology/Conference proceedings
  • 2005. The Nordic Seas - An Integrated Perspective. American Geophysical Union (AGU).
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  • 2004. Climate variability in th Nordic Seas. American Geophysical Union (AGU).
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Popular scientific article
  • 2007. Rekonstruerer havstrømmer. Cicerone.
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  • 2002. De nordiske hav - en "hovedbryter" i klimasystemet? Cicerone. 20-22.
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Letter to the editor
  • 2004. Palaeoclimatology - Fresh angle on the polar seesaw. Nature. 842-843.
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Doctoral dissertation
  • 2015. Calibration, validation and application of the foraminiferal Mg/Ca: Reconstructing the intermediate water masses structure and origin in the Western Tropical Atlantic.
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  • 2004. Ocean-ice sheet interaction and paleoceanographic variability in the eastern Nordic Seas through the last 140000 years.
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Interview
  • 2013. Ny webtjeneste skal hindre flomskader.
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  • 2013. Mer enn 50 millioner forskningskroner til Bjerknessenteret.
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  • 2013. Mer enn 50 millioner forskningskroner til Bjerknessenteret.
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  • 2013. Klimaforskning til topps.
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  • 2013. Klimaendringane er 10 gongar raskare enn på 65 millionar år.
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  • 2013. Får 50 mill. til is-forskning.
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  • 2013. Alle vil merke klimaendringene.
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  • 2012. Rekordvarm september.
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  • 2011. Slik forklarer de brå klimaendringer.
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  • 2011. Kjølig for vikingene på Grønland.
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  • 2011. 12 års støtte til Senter for klimadynamikk.
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  • 2010. Hva som sies og formidles, og hvorfor!
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  • 2010. 100 millioner kr til klima.
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  • 2009. Ekstremvær tok knekken på istiden.
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  • 2009. Ekstremvær tok knekken på istiden.
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  • 2009. Ekstremvær tok knekken på istiden.
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  • 2008. Tropenes klimagåter.
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  • 2008. Lofotfisket trues.
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  • 2008. Fornøyd etter statsrådstur til Latin-Amerika.
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  • 2007. Vinker farvel til dagens lofotfiske.
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  • 2007. Nordpol-isen har vært - MINDRE Aner ikke rekkevidden av endringene i Arktis Arktis mer følsom for klimaendringer enn antatt Tegn på oppbrutt sjøis for bare 10 000 år siden.
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  • 2007. Lofotfiske trues.
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  • 2007. Blått lys for lofotfisket.
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  • 2006. Innslag fra Sommerskolen i Klimavariasjoner, Finse.
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  • 2006. Forskere på gyngende grunn.
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Documentary
  • 2011. Willi Dansgaard - en pionér i klimaforskningen har gått bort.
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Programme participation
  • 2009. NRK Hordaland sender fra Bjerknessenteret.
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  • 2009. CO2 i atmosfæren.
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  • 2008. Verdt å vite - spesial.
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Academic chapter/article/Conference paper
  • 2006. The climate signal in glaciers - evidence for shifting North Atlantic atmospheric circulation. 2 pages.
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  • 2005. The Nordic Seas: An overview. 10 pages.
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  • 2005. Extent and variability of the Meridiona Atlantic circulation in the Eastern Nordic Seas during marine isotope stage 5 and its influence on the inception ot the last glacial. 18 pages.
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  • 2005. Exploratoty Comparisons of Quantitative Temperature Estimates Over the Last Deglaciation in Norway and the Norwegian Sea. 14 pages.
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Abstract
  • 2010. The early Holocene thermal maximum in the northern Nordic Seas: An advective signal or a direct response to trong summer insolation? Geophysical Research Abstracts.
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  • 2009. Surface warming and ice-rafting in North-Atlantic during MIS3, A possible link? Geochimica et Cosmochimica Acta. A604-A604.
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  • 2009. New Mg/Ca calibration of benthic foraminiferal species: Mapping of the tropical thermocline dynamics. Geochimica et Cosmochimica Acta. A1332-A1332.
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Poster
  • 2019. Provenance of iceberg derived material during Greenland stadials and interstadials in Marine Isotope Stage (MIS) 3.
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  • 2019. Last glacial tephra markers recorded in the North Atlantic and the Nordic Seas.
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  • 2019. Last Glacial tephra horizons identified in the North Atlantic and the Nordic Seas.
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  • 2018. The role of glacial sea ice variability in the Norwegian Sea during abrupt Dansgaard-Oeschger climate changes.
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  • 2018. Tephra horizons recorded in the North Atlantic and the Nordic Seas: a marine-marine cross-correlation of paleorecords across the basin.
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  • 2018. On the way to a North Atlantic east-west synchronisation: The discovery of FMAZ II and NAAZ II in two North Atlantic marine sediment cores.
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  • 2017. Warm Atlantic Intermediate Water in the Denmark Strait during D-O events.
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  • 2017. Interplay between sea ice extent in the Nordic Seas and abrupt climate change in Greenland over D-O cycles.
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  • 2017. Calibration of the clumped isotope thermometer for planktonic and benthic foraminifera.
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  • 2017. A tephra based marine-ice core synchronization of the GS-9/GIS-8 transition (38-40.5ka b2k).
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  • 2017. A multi decadal study of Polar and Atlantic Water changes on the North Iceland shelf during the last millennium.
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  • 2016. A tephra based marine-ice core synchronization of the GS-9/GIS-8 transition (38-40.5ka b2k).
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  • 2013. Multidecadal variability of surface ocean conditions in the eastern Norwegian Sea.
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  • 2013. Late Holocene size normalized foraminiferal shell weights from the eastern Norwegian Sea.
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  • 2012. Late Holocene reservoir age corrections for the Norwegian Sea.
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  • 2012. Climate dynamics during the deglaciation of the North-Atlantic region.
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  • 2011. Abrupt changes in the intermediate water circulation over the last 25,000 years.
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  • 2010. The cryosphere's role in abrupt climate events in the glacial North Atlantic.
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  • 2010. Bottom water hydrology changes in North-Antlantic Ocean over the last Deglaciation based on new Mg/Ca C. wuellerstorfi calibration.
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  • 2010. A new model of Dansgaar-Oeschger cycles: the Nordic ice machine.
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  • 2009. New cores-top Mg/Ca calibration of multiple benthic foraminiferal species:thermometry of the thermocline water in Tropical western atlantic.
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  • 2009. New Mg/Ca calibrationof benthic foraminiferal species: Mapping of the tropical thermocline dynamics.
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  • 2009. New Mg/Ca calibrationof benthic foraminiferal species: Mapping of the tropical thermocline dynamics.
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  • 2009. Marine climates of the Norwegian and Bartents during the deglacial and early Holocene.
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  • 2009. Fennoscandian trigger for D-O events.
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  • 2009. A conceptual model of D-O events.
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  • 2007. A conceptual model for D-O events: the role of ocean circulation and the duration of cold stadials.
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  • 2006. 2700 years BP - Evidence for large-scale mode-shift in Atlantic Atmospheric Circulation. A coherent pattern from ocean and terrestrial archives at the Subboreal-Subatlanticum transition.
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  • 2005. Inception of the Northern European Ice Sheets due to contrasting ocean and insolation forcing.
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  • 2004. Reconstructing the thermocline in the Faeroe-Shetland Channel from paleo proxies and estimating the associated fluxes.
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  • 2004. Reconstructing the thermocline in the Faeroe-Shetland Channel from paleo proxies and estimating the associated fluxes.
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  • 2004. On the cause of the last glacial inception.
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  • 2004. Exploratory comparisons of quantitative temperature estimates over the last deglaciation in Norway and the Norwegian Sea.
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  • 2002. Aspects of Termination II and MIS 5 as Recorded at the West Spitsbergen Margin.
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Academic literature review
  • 2007. Atlantic meridional overturning circulation during the Last Glacial Maximum. 66-69.
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Brochure
  • 2010. Klimaendringer i fortiden.
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  • 2010. Golfstrømmen og vårt milde klima.
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