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<p>Groundwater resources are currently important for supplying populations, agriculture, and industry. However, the balance of these resources is threatened by intense anthropogenic pressure and climate change. In this context, hydrogeological modeling becomes one of the best alternatives for designing appropriate management plans. This work aims to model the hydrogeological behavior of the eastern part of the Annaba plain (Northeastern Algeria) and assess the future availability of groundwater in this region. To achieve this, several datasets (hydrodynamic properties, recharge, piezometric levels, outputs from Regional Climate Models, etc.) were used in the MODFLOW model (via the Groundwater Modeling System interface). The behavior of the studied aquifer was satisfactorily simulated in both steady-state (mean residual = -0.2&#xa0;m) and transient (Nash ≥ 0.53) conditions. The REMO model, which appears to provide the most reliable forecasts, predicts a decline of no more than − 27.4% for the period 2026–2050, regardless of the emission scenario considered. The findings of this study could contribute to better management of groundwater resources in the studied plain and region.</p>

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Contemporary and predictive hydrogeological modeling in the context of incomplete hydrodynamic data: a case study of the eastern part of the Annaba plain, Northeastern Algeria

  • 期刊论文

  • 发表日期：

    2025年6月30日

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  • Valentin Brice Ebodé,
  • Yann Lucas,
  • Maoui Ammar

摘要

Groundwater resources are currently important for supplying populations, agriculture, and industry. However, the balance of these resources is threatened by intense anthropogenic pressure and climate change. In this context, hydrogeological modeling becomes one of the best alternatives for designing appropriate management plans. This work aims to model the hydrogeological behavior of the eastern part of the Annaba plain (Northeastern Algeria) and assess the future availability of groundwater in this region. To achieve this, several datasets (hydrodynamic properties, recharge, piezometric levels, outputs from Regional Climate Models, etc.) were used in the MODFLOW model (via the Groundwater Modeling System interface). The behavior of the studied aquifer was satisfactorily simulated in both steady-state (mean residual = -0.2 m) and transient (Nash ≥ 0.53) conditions. The REMO model, which appears to provide the most reliable forecasts, predicts a decline of no more than − 27.4% for the period 2026–2050, regardless of the emission scenario considered. The findings of this study could contribute to better management of groundwater resources in the studied plain and region.