Seasonal upwelling–dust controls on export production in the Canary Current System revealed by Lagrangian particle tracking

Guerreiro, Catarina V.; Jonsson, Bror F.; Land, Peter; Arístegui, Javier; Stuut, Jan-Berend; Ferreira, Afonso; Tilstone, Gavin H.; Brotas, Vanda; Groom, Steve B.

doi:10.5194/bg-23-5133-2026

Articles | Volume 23, issue 14

https://doi.org/10.5194/bg-23-5133-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-23-5133-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 14

Research article

|

24 Jul 2026

Research article |

| 24 Jul 2026

Seasonal upwelling–dust controls on export production in the Canary Current System revealed by Lagrangian particle tracking

Catarina V. Guerreiro, Bror F. Jonsson, Peter Land, Javier Arístegui, Jan-Berend Stuut, Afonso Ferreira, Gavin H. Tilstone, Vanda Brotas, and Steve B. Groom

Supplement

https://doi.org/10.5194/bg-23-5133-2026-supplement

Data sets

Coccolith export fluxes and environmental data from sediment trap M1U C. V. Guerreiro et al. https://doi.org/10.1594/PANGAEA.941574

Coccolith export fluxes and environmental data from sediment trap CB C. V. Guerreiro et al. https://doi.org/10.1594/PANGAEA.941544

Coccolith-carbonate species fluxes and environmental data from sediment trap site M1U C. V. Guerreiro et al. https://doi.org/10.1594/PANGAEA.940404

Coccolith-carbonate species fluxes and environmental data from sediment trap site CB C. V. Guerreiro et al. https://doi.org/10.1594/PANGAEA.940504

Particle fluxes from sediment trap M1U [dataset] Laura F. Korte et al. https://doi.org/10.1594/PANGAEA.872086

Supporting datasets and Python code for: "Seasonal upwelling–dust controls on export production in the Canary Current System revealed by Lagrangian particle tracking" C. V. Guerreiro et al. https://doi.org/10.5281/zenodo.21041445

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Short summary

This study examines how winds, ocean currents, and Saharan dust influence the transfer of carbon-rich material from surface waters to the deep open ocean off NW Africa. By tracking seawater pathways and sinking particles throughout the year, the research shows that winter-spring upwelling drives offshore export, while summer dust deposition contributes through ballasting and episodic fertilisation. This study improves our understanding of the drivers controlling open ocean export production.