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February 8, 2026Earth system science dataOpen Access

UEx-L-Eddies: decadal and global long-lived mesoscale eddy trajectories with coincident air–sea CO 2 fluxes and environmental conditions

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Authors

DFDaniel J. FordJSJamie D. ShutlerKSKaty Sheen

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Overview

Reveals the effects of mesoscale eddies on air-sea CO2 fluxes in the global ocean, suggesting significant carbon sink modulation.

Key Points

  • The research aims to understand how long-lived mesoscale eddies influence CO2 uptake in the ocean.
  • Developed a global dataset of 5996 long-lived eddy trajectories tracked from 1993 to 2022.
  • Utilized a Lagrangian approach to analyze environmental conditions and corresponding air-sea CO2 fluxes.
  • Employed a global neural network to estimate fugacity of CO2 in seawater.
  • Assessed uncertainties in air-sea CO2 flux calculations to improve methodological clarity.
  • Anticyclonic eddies enhance the CO2 sink by 4.5±2.8%.
  • Cyclonic eddies reduce the CO2 sink by 0.7±2.6%.
  • Overall, long-lived mesoscale eddies enhance the ocean CO2 sink by 2.7±1.1 Tg C yr−1.

Cite This Study

Ford et al. (2026) studied this question.

synapsesocial.com/papers/698828100fc35cd7a88473a9https://doi.org/10.5194/essd-18-969-2026
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