Saadoun et al. (2026) Using a statistical approach and the Standardised Streamflow Index (SSI) to analyse the impact of climate change on runoff in catchments on the north-eastern edge of Algeria

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Identification

• Journal: Environmental Research and Technology
• Year: 2026
• Date: 2026-08-09
• Authors: Chehla Saadoun, Abdesselem Kabour, Lotfi Zeghadnia
• DOI: 10.35208/ert.1649766

Research Groups

[Not specified]

Short Summary

This study analyzes river flow trends in northeastern Algeria from 1958 to 2023, revealing significant declines in water availability and persistent drought conditions due to climate change.

Objective

• To evaluate the impacts of climate change on river flows within the Medjerda and Côtier Constantinois East catchments.

Study Configuration

• Spatial Scale: Medjerda and Côtier Constantinois East catchments, northeastern Algeria.
• Temporal Scale: 1958–2023.

Methodology and Data

• Models used: Mann-Kendall test, Sen's slope estimator, homogeneity analysis, and Standardized Streamflow Index (SSI).
• Data sources: Monthly streamflow data from three monitoring stations (Kébir, Medjerda, and Mellegue).

Main Results

• Significant declining trends in streamflow were observed, ranging between 34% and 68%.
• Hydrological breakpoints were identified occurring between 2006 and 2015.
• Mild drought conditions were persistent, affecting 58–68% of the study period.
• Specific flow reductions were quantified as: Kébir (-68.4%), Medjerda (-34.6%), and Mellegue (-65.6%).

Contributions

• Provides quantitative evidence of increasing hydrological stress in semi-arid Mediterranean catchments, offering critical insights for water resource management in regions facing similar climatic challenges.

Funding

[Not specified]

Citation

@article{Saadoun2026Using,
  author = {Saadoun, Chehla and Kabour, Abdesselem and Zeghadnia, Lotfi},
  title = {Using a statistical approach and the Standardised Streamflow Index (SSI) to analyse the impact of climate change on runoff in catchments on the north-eastern edge of Algeria},
  journal = {Environmental Research and Technology},
  year = {2026},
  doi = {10.35208/ert.1649766},
  url = {https://doi.org/10.35208/ert.1649766}
}