Modeling of the northern coastal aquifer

01Context

The shallow aquifer of the northern coast is strategic and subject to strong pressures.

An updated model is necessary to assess the impact of abstraction and climate.

02Issues

Mobilizing and sustainably securing the resource requires precise knowledge of its geometry, productivity and quality.

The issue was to strengthen decision-making by reducing hydrogeological uncertainties.

03Mission objectives

• Update knowledge on the hydraulic system
• Assess the impact of intensive abstraction
• Assess the impact of climate change
• Develop tools for monitoring and management of the resource

04Services delivered by EAU-GEF

• Update of the conceptual model
• Hydrogeological modeling of the aquifer
• Simulation of abstraction and climate scenarios
• Tools for monitoring and management of the resource

05Approach & methodology

The approach combined desk review, field investigations, geophysics and hydrogeological interpretation to clarify the system's functioning.

Results were spatialised to objectify decisions and guide the design of structures.

06Results & added value

The mission provided the client with a solid and documented basis for sustainable management and mobilization of the resource.

It demonstrates EAU-GEF's expertise across the entire hydrogeological study chain.