Articles | Volume 16, issue 6
https://doi.org/10.5194/tc-16-2471-2022
https://doi.org/10.5194/tc-16-2471-2022
Research article
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24 Jun 2022
Research article | Highlight paper |  | 24 Jun 2022

Impact of freshwater runoff from the southwest Greenland Ice Sheet on fjord productivity since the late 19th century

Mimmi Oksman, Anna Bang Kvorning, Signe Hillerup Larsen, Kristian Kjellerup Kjeldsen, Kenneth David Mankoff, William Colgan, Thorbjørn Joest Andersen, Niels Nørgaard-Pedersen, Marit-Solveig Seidenkrantz, Naja Mikkelsen, and Sofia Ribeiro

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Cited articles

Andersen, T. J.: Some Practical Considerations Regarding the Application of 210Pb and 137Cs Dating to Estuarine Sediments, in: Applications of Paleoenvironmental Techniques in Estuarine Studies, Springer, Developments in Paleoenvironmental Research (DPER), 20, 121–140, https://doi.org/10.1007/978-94-024-0990-1_6, 2017. 
Arendt, K. E., Dutz, J., Jonasdottir, S. H., Jung-Madsen, S., Mortensen, J., Moller, E. F., and Nielsen, T. G.: Effects of suspended sediments on copepods feeding in a glacial influenced sub-Arctic fjord, J. Plankton Res., 33, 1526–1537, https://doi.org/10.1093/plankt/fbr054, 2011. 
Arendt, K. E., Agersted, M. D., Sejr, M. K., and Juul-Pedersen, T.: Glacial meltwater influences on plankton community structure and the importance of top-down control (of primary production) in a NE Greenland fjord, Estuar., Coast. Shelf Sci., 183, 123–135, 2016. 
Arrigo, K. R. and van Dijken, G. I.: Continued increases in Arctic Ocean primary production, Prog. Oceanogr., 136, 60–70, 2015. 
Aschwanden, A., Fahnestock, M. A., Truffer, M., Brinkerhoff, D. J., Hock, R., Khroulev, C., Mottram, R., and Khan, S. A.: Contribution of the Greenland Ice Sheet to sea level over the next millennium, Sci. Adv., 5, eaav9396, https://doi.org/10.1126/sciadv.aav9396, 2019. 
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Co-editor-in-chief
Justification of handling editor: The paper presents a multi-proxy study of fjord productivity in Greenland. The link between paleo records and modern climate is notable.
Short summary
One of the questions facing the cryosphere community today is how increasing runoff from the Greenland Ice Sheet impacts marine ecosystems. To address this, long-term data are essential. Here, we present multi-site records of fjord productivity for SW Greenland back to the 19th century. We show a link between historical freshwater runoff and productivity, which is strongest in the inner fjord – influenced by marine-terminating glaciers – where productivity has increased since the late 1990s.