Articles | Volume 22, issue 9
https://doi.org/10.5194/bg-22-2163-2025
https://doi.org/10.5194/bg-22-2163-2025
Research article
 | 
05 May 2025
Research article |  | 05 May 2025

Inadequacies in the representation of sub-seasonal phytoplankton dynamics in Earth system models

Madhavan Girijakumari Keerthi, Olivier Aumont, Lester Kwiatkowski, and Marina Levy

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Cited articles

Alexander, M. A., Scott, J. D., Friedland, K. D., Mills, K. E., Nye, J. A., Pershing, A. J., and Thomas, A. C.: Projected sea surface temperatures over the 21st century: Changes in the mean, variability and extremes for large marine ecosystem regions of Northern Oceans, Elem. Sci. Anth., 6, 9, https://doi.org/10.1525/elementa.191, 2018. 
Benedetti, F., Gruber, N., and Vogt, M.: Global gradients in species richness of marine plankton functional groups, J. Plankton Res., 45, 832–852, 2023. 
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We assessed how well climate models replicate sub-seasonal changes in ocean chlorophyll observed by satellites. Models struggle to capture these variations accurately. Some overestimate fluctuations and their impact on annual chlorophyll variability, while others underestimate them. The underestimation is likely due to limited model resolution, while the overestimation may come from internal model oscillations.
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