Suspended sediment dynamics in the semiarid Mediterranean environment: A case study of the Ksob basin, Algeria


Sakhraoui F., Abu Arra A., Hasbaia M., Şişman E.

9th Advanced Engineering Days , Tabriz, İran, 9 - 10 Temmuz 2024, ss.1-3

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Tabriz
  • Basıldığı Ülke: İran
  • Sayfa Sayıları: ss.1-3
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Understanding suspended sediment dynamics is crucial for effective water resource management and environmental preservation, particularly in semiarid regions where flood events significantly influence sediment transport. This research evaluates the dynamics of suspended sediments during flood events in the semiarid Mediterranean environment of the Ksob basin, Algeria. Analyzing data from major floods recorded over 18 years (1974-1991), the study compares suspended and water sediment yields from flood events to annual yields. The sediment rating curve (SRC) approach was employed to simulate suspended sediment concentration and water discharge. The key findings indicate total water sediment yields of 214.48 million m³ and 6.22 million tons during floods. This accounted for 19.27% of the total water load and 29.90% of the total suspended sediment load. Flood events between 1974 and 1991 transported approximately 41.33 million m³ of water and 1.86 million tons of suspended sediments. The SRCexplained over 92% of the variance in sediment transport for significant floods, highlighting the predominance of annual floods in sediment dynamics. The regression relationship between SRC parameters at the flood events (R² = 0.80) suggests consistent suspended sediment processes during floods, providing essential insights for calculating river sediment loads and understanding sediment transport behavior in semiarid regions.