Thomalla, Sandy JDu Plessis, MFauchereau, NGiddy, IGregor, LHenson, SJoubert, WRLittle, HMonteiro, Pedro MSMtshali, TNicholson, Sarah-AnneRyan-Keogh, Thomas JSwart, S2023-10-172023-10-172023-05Thomalla, S.J., Du Plessis, M., Fauchereau, N., Giddy, I., Gregor, L., Henson, S., Joubert, W. & Little, H. et al. 2023. Southern Ocean phytoplankton dynamics and carbon export: Insights from a seasonal cycle approach. <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 381(2249).</i> http://hdl.handle.net/10204/131581364-503X1471-2962https://doi.org/10.1098/rsta.2022.0068http://hdl.handle.net/10204/13158Quantifying the strength and efficiency of the Southern Ocean biological carbon pump (BCP) and its response to predicted changes in the Earth's climate is fundamental to our ability to predict long-term changes in the global carbon cycle and, by extension, the impact of continued anthropogenic perturbation of atmospheric CO2. There is little agreement, however, in climate model projections of the sensitivity of the Southern Ocean BCP to climate change, with a lack of consensus in even the direction of predicted change, highlighting a gap in our understanding of a major planetary carbon flux. In this review, we summarize relevant research that highlights the important role of fine-scale dynamics (both temporal and spatial) that link physical forcing mechanisms to biogeochemical responses that impact the characteristics of the seasonal cycle of phytoplankton and by extension the BCP. This approach highlights the potential for integrating autonomous and remote sensing observations of fine scale dynamics to derive regionally optimized biogeochemical parameterizations for Southern Ocean models. Ongoing development in both the observational and modelling fields will generate new insights into Southern Ocean ecosystem function for improved predictions of the sensitivity of the Southern Ocean BCP to climate change.FulltextenSouthern OceanBiological carbon pumpFine-scale resolutionClimate changeArticleThomalla, S. J., Du Plessis, M., Fauchereau, N., Giddy, I., Gregor, L., Henson, S., ... Swart, S. (2023). Southern Ocean phytoplankton dynamics and carbon export: Insights from a seasonal cycle approach. <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 381(2249)</i>, http://hdl.handle.net/10204/13158Thomalla, Sandy J, M Du Plessis, N Fauchereau, I Giddy, L Gregor, S Henson, WR Joubert, et al "Southern Ocean phytoplankton dynamics and carbon export: Insights from a seasonal cycle approach." <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 381(2249)</i> (2023) http://hdl.handle.net/10204/13158Thomalla SJ, Du Plessis M, Fauchereau N, Giddy I, Gregor L, Henson S, et al. Southern Ocean phytoplankton dynamics and carbon export: Insights from a seasonal cycle approach. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 381(2249). 2023; http://hdl.handle.net/10204/13158.TY - Article AU - Thomalla, Sandy J AU - Du Plessis, M AU - Fauchereau, N AU - Giddy, I AU - Gregor, L AU - Henson, S AU - Joubert, WR AU - Little, H AU - Monteiro, Pedro MS AU - Mtshali, T AU - Nicholson, Sarah-Anne AU - Ryan-Keogh, Thomas J AU - Swart, S AB - Quantifying the strength and efficiency of the Southern Ocean biological carbon pump (BCP) and its response to predicted changes in the Earth's climate is fundamental to our ability to predict long-term changes in the global carbon cycle and, by extension, the impact of continued anthropogenic perturbation of atmospheric CO2. There is little agreement, however, in climate model projections of the sensitivity of the Southern Ocean BCP to climate change, with a lack of consensus in even the direction of predicted change, highlighting a gap in our understanding of a major planetary carbon flux. In this review, we summarize relevant research that highlights the important role of fine-scale dynamics (both temporal and spatial) that link physical forcing mechanisms to biogeochemical responses that impact the characteristics of the seasonal cycle of phytoplankton and by extension the BCP. This approach highlights the potential for integrating autonomous and remote sensing observations of fine scale dynamics to derive regionally optimized biogeochemical parameterizations for Southern Ocean models. Ongoing development in both the observational and modelling fields will generate new insights into Southern Ocean ecosystem function for improved predictions of the sensitivity of the Southern Ocean BCP to climate change. DA - 2023-05 DB - ResearchSpace DP - CSIR J1 - Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 381(2249) KW - Southern Ocean KW - Biological carbon pump KW - Fine-scale resolution KW - Climate change LK - https://researchspace.csir.co.za PY - 2023 SM - 1364-503X SM - 1471-2962 T1 - Southern Ocean phytoplankton dynamics and carbon export: Insights from a seasonal cycle approach TI - Southern Ocean phytoplankton dynamics and carbon export: Insights from a seasonal cycle approach UR - http://hdl.handle.net/10204/13158 ER -26857