Publications

In revision

  • Fontan A., J. Jouanno, P.E. Brilouet , T. Guinaldo. Thermal Signature of Sargassum aggregations from Landsat 9 Observations. In revision Harmful Algae.

2026

  • Pitek, L., Brilouet, P. E., Jouanno, J., & Graffin, M. (2026). High-Spatial-and-Temporal-Resolution Sargassum AFAI Coastal Dataset for Guadeloupe, Martinique and Yucatán. Remote Sensing, 18(4), 624.
  • Julia, H. , D.Y. Ouédraogo, C. Chevalier, V. Stiger-Pouvreau, J. Jouanno, V. David, A. Salazar-Garibay, M. Canesi and F. Ménard (2026). Sargassum beaching in the western Atlantic: a scoping review. Environnement Research Letters. 
  • Jouanno and Berthet (2026) La prolifération des Sargasses dans l’Ouest de l’océan Atlantique tropical : des avancées mais toujours des questions sur l’influence de la variabilité climatique. La Météorologie. [Link]

2025

  • Sosa-Gutierrez, R., Jouanno, J., & Berline, L. (2025). Sargassum accumulation and transport by mesoscale eddies. EGUsphere, 2025, 1-13.
  • Debue, M.,  T.  Guinaldo, J. Jouanno, M. Chami, S. Barbier, L. Berline, C. Chevalier, P. Daniel, W. Daniel, J. Descloitres, J.-R. Gros-Desormeaux, C. Lett and A.  Minghelli, Undestanding the Sargassum phenomenon in the Tropical Atlantic Ocean: from satellite monitoring to stranding forecast. Marine Pollution Bulletin, 216, 117923.
  • Jouanno, J., Almar, R., Muller-Karger, F., Morvan, G., van Tussenbroek, B., Benshila, R., Marchesiello, P. & Addo, K. A. (2025). Socio-ecological vulnerability assessment to Sargassum arrivals. Scientific Reports, 15(1), 9998.
  • Jouanno, J., Berthet, S., Muller-Karger, F., Aumont, O., Sheinbaum, J., 2025. An extreme North Atlantic Oscillation event drove the pelagic Sargassum tipping point. Communications Earth & Environment 6, 95. https://doi.org/10.1038/s43247-025-02074-x
  • Jouanno Julien. (2025). Sargassum taking over. In : Duvail Stéphanie (dir.), Herrmann Marine (dir.), Lévy Marina (dir.), Pringault Olivier (dir.), Guedj Catherine (ed.), Lavagne Corinne (ed.), Portal-Cabanel J. (ed.), Rechner Daïna (ed.), Sabrié Marie-Lise (ed.). Our shared ocean : science in the Global South for a sustainable world. Marseille : IRD, 46-47. (Grands Enjeux). ISBN 978-2-7099-3070-3.
Distribution of sargassum coverage (%) from MODIS and contours of mesoscale eddies detected from altimetry measurements on June 28, 2021. Sargassum biomass is averaged over 7 days. Red contours indicate anticyclonic eddies and blue contours indicate cyclonic eddies. Adapted from Sosa et al. 2025.

Map of coastal vulnerability index computed from estimated stranding from 2018 to 2023: (a) total coastal vulnerability (SVI). From Jouanno et al. (2025b)

2024

  • Podlejski, W., Berline, L., Jouanno, J., Barrier, N., & Lett, C. (2024). Drivers of growth and decay of Sargassum in the Tropical Atlantic: A Lagrangian approach. Progress in Oceanography, 103364.

2023

  • Jouanno, J., Morvan G., Berline, L., Benshila R., Aumont, O., Sheinbaum, J., Ménard, F. (2023). Skillful seasonal forecast of Sargassum proliferation in the Tropical Atlantic. In press Geophysical Research Letter. https://doi.org/10.1029/2023GL105545
Illustration of the forecasts and ability of the system to predict the large-scale distribution of Sargassum with 1–7 months (Jouanno et al. 2023)

2022

  • Sosa-Gutierrez R., J. Jouanno, L. Berline, J. Descloitres, and C. Chevalier (2022). Impact of Tropical cyclones on pelagic Sargassum. Geophysical Research Letters, 49(6), e2021GL097484.

2021

  • Jouanno, J., Benshila, R., Berline, L., Soulié, A., Radenac, M.-H., Morvan, G., Diaz, F., Sheinbaum, J., Chevalier, C., Thibaut, T., Changeux, T., Menard, F., Berthet, S., Aumont, O., Ethé, C., Nabat, P., and Mallet, M.: A NEMO-based model of Sargassum distribution in the Tropical Atlantic: description of the model and sensitivity analysis (NEMO-Sarg1.0), Geoscientific Model Development, 14(6), 4069-4086.
  • Jouanno, J., J. S. Moquet, L. Berline, M.H. Radenac, W. Santini, T. Changeux, T. Thibaut, W. Podlejski, F. Menard, J.M. Martínez, O, Aumont, J. Sheinbaum, N. Filizola, G.D. Mounkandi N’kaya (2021). Evolution of the riverine nutrient export to the Tropical Atlantic over the last 15 years: is there a link with Sargassum proliferation? Env. Res. Letters, 16, 034042

2020

  • Berline, L., Ody, A., Jouanno, J., Chevalier, C., André, J. M., Thibaut, T., & Ménard, F. (2020). Hindcasting the 2017 dispersal of Sargassum algae in the Tropical North Atlantic. Marine Pollution Bulletin, 158, 111431.

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