Articles | Volume 17, issue 1
Clim. Past, 17, 379–396, 2021
https://doi.org/10.5194/cp-17-379-2021
Clim. Past, 17, 379–396, 2021
https://doi.org/10.5194/cp-17-379-2021

Research article 08 Feb 2021

Research article | 08 Feb 2021

Response of biological productivity to North Atlantic marine front migration during the Holocene

David J. Harning et al.

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Manuscript not accepted for further review
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Cited articles

Andersen, C., Koç, N., Jennings, A. E., and Andrews, J. T.: Nonuniform response of the major surface currents in the Nordic Seas to insolation forcing: Implications for the Holocene climate variability, Paleoceanography, 19, 1–16, 2004. 
Anderson, L. S., Flowers, G. E., Jarosch, A. H., Aðalgeirsdóttir, G.Th., Geirsdóttir, Á., Miller, G. H., Harning, D. J., Thorsteinsson, T., Magnússon, E., and Pálsson, F.: Holocene glacier and climate variations in Vestfirðir, Iceland, from the modeling of Drangajökull ice cap, Quaternary Sci. Rev., 190, 39–56, 2018. 
Anderson, L. S., Geirsdóttir, Á., Flowers, G. E., Wickert, A. D., Aðalgeirsdóttir, G., and Thorsteinsson, Th.: Controls on the lifespans of Icelandic ice caps, Earth Planet. Sc. Lett., 527, 115780, https://doi.org/10.1016/j.epsl.2019.115780, 2019. 
Árnason, R. and Sigfússon, Þ.: Þýðing sjávarklasans í íslensku efnahagslífi, published by Islandsbanki, Reykjavík, Iceland, 2012. 
Bakker, P., Schmittner, A., Lenaerts, J. T. M., Abe-Ouchi, A., Bi, D., van den Broeke, M. R., Chan, W.-L, Hu, A., Beadling, R. L., Marsland, S. J., Mernild, S. H., Saenko, O. A., Swingedouw, D., Sullivan, A., and Yin, J.: Fate of the Atlantic meridional overturning circulation: strong decline under continued warming and Greenland melting, Geophys. Res. Lett., 43, 12252–12260, 2016. 
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Today, the waters north of Iceland are characterized by high productivity that supports a diverse food web. However, it is not known how this may change and impact Iceland's economy with future climate change. Therefore, we explored how the local productivity has changed in the past 8000 years through fossil and biogeochemical indicators preserved in Icelandic marine mud. We show that this productivity relies on the mixing of Atlantic and Arctic waters, which migrate north under warming.