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Alumni Portrait | Arame Dieye - detecting coastal submersion

08 October 2025 International News
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"Setting up an early warning system for extreme tides will help protect coastal crops. "
- Arame Dieye

Born in the Yoff and Ngor districts of Dakar, Arame Dieye grew up to the rhythm of the waves. Born into a Lebou community with a coastal and fishing tradition, she explains that this cultural background nurtured her passion for oceanography from an early age.

After obtaining a degree in physics, chemistry and material sciences at the Université Cheikh-Anta Diop, she followed a diversified career path, including a professional degree in geometry and topography, before returning to her initial goal.

She then undertook a master's degree in physics applied to ocean and atmospheric sciences, at the University of Ziguinchor (Casamance). Her master's and thesis research focused on sea-level variations in West Africa and the modeling of tidal systems on coastal plateaus and estuaries (Guinea-Bissau).

SEA LEVEL RISE

His work led him to design a prototype early warning system for extreme tides:

based on oceanographic and atmospheric data and a local network of tide gauges (some fifteen deployed along the Guinea-Bissau coastline), it provides forecasts within a few days to enable farmers to reinforce dykes in advance of critical events.

This system responds to a real emergency: in this region, tidal ranges of 6 to 7 meters are observed in certain areas - well above the average West African coast - weakening dikes and causing loss of land and crops.

Through this portrait, the IRD salutes Arame Dieye's career and the commitment her work reflects. It shows how applied research, rooted in local realities, can help anticipate coastal risks and propose concrete solutions for vulnerable territories.

An article by Olivier Blot, IRD le Mag'.




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