Hurricane Irma: an unprecedented event over the last 3700 years? Geomorphological changes and sedimentological  record in Codrington Lagoon, Barbuda

Biguenet, Maude; Chaumillon, Eric; Sabatier, Pierre; Bastien, Antoine; Geba, Emeline; Arnaud, Fabien; Coulombier, Thibault; Feuillet, Nathalie

doi:https://doi.org/10.5194/nhess-23-3761-2023

Articles | Volume 23, issue 12

https://doi.org/10.5194/nhess-23-3761-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-23-3761-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 12

Research article

|

06 Dec 2023

Research article |

| 06 Dec 2023

Hurricane Irma: an unprecedented event over the last 3700 years? Geomorphological changes and sedimentological record in Codrington Lagoon, Barbuda

Maude Biguenet, Eric Chaumillon, Pierre Sabatier, Antoine Bastien, Emeline Geba, Fabien Arnaud, Thibault Coulombier, and Nathalie Feuillet

Supplement

https://doi.org/10.5194/nhess-23-3761-2023-supplement

IGSN

BARB1-18-01 Pierre Sabatier TOAE0000000494

BARB1-18-02 Pierre Sabatier TOAE0000000495

BARB1-18-03 Pierre Sabatier TOAE0000000496

BARB1-18-05 Pierre Sabatier TOAE0000000498

BARB1-18-06 Pierre Sabatier TOAE0000000499

BARB1-18-09 Pierre Sabatier TOAE0000000502

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Short summary

This work documents the impact of Hurricane Irma (2017) on the Codrington barrier and lagoon on Barbuda Island. Irma caused two wide breaches in the sandy barrier, which remained unopened for 250 years. The thick and extensive sand sheet at the top of the lagoon fill was attributed to Irma. This unique deposit in a 3700-year record confirms Irma's exceptional character. This case study illustrates the consequences of high-intensity hurricanes in low-lying islands in a global warming context.