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Climate models containing ocean biogeochemistry contain a lot of poorly constrained parameters, which makes model tuning difficult. For more than 20 years modellers have generally assumed phytoplankton light attenuation parameter value choice has an insignificant affect on model ocean primary production; thus, it is often overlooked for tuning. We show that an empirical range of light attenuation parameter values can affect primary production, with increasing sensitivity under climate change.
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Articles | Volume 14, issue 20
Biogeosciences, 14, 4767–4780, 2017
https://doi.org/10.5194/bg-14-4767-2017
Biogeosciences, 14, 4767–4780, 2017
https://doi.org/10.5194/bg-14-4767-2017

Research article 25 Oct 2017

Research article | 25 Oct 2017

Primary production sensitivity to phytoplankton light attenuation parameter increases with transient forcing

Karin F. Kvale and Katrin J. Meissner

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Cited articles

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Eby, M., Zickfeld, K., Montenegro, A., Archer, D., Meissner, K. J., and Weaver, A. J.: Lifetime of anthropogenic climate change: Millennial time scales of potential CO2 and surface temperature perturbations, J. Climate, 22, 2501–2511, https://doi.org/10.1175/2008JCLI2554.1, 2009.
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Short summary
Climate models containing ocean biogeochemistry contain a lot of poorly constrained parameters, which makes model tuning difficult. For more than 20 years modellers have generally assumed phytoplankton light attenuation parameter value choice has an insignificant affect on model ocean primary production; thus, it is often overlooked for tuning. We show that an empirical range of light attenuation parameter values can affect primary production, with increasing sensitivity under climate change.
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