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Particulate flow at the mouth of the S oummam watershed ( A lgeria)
Author(s) -
AlliliAilane Chafika,
Laignel Benoît,
Adjeroud Nawel,
Bir Hassiba,
Madani Khodir
Publication year - 2016
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12210
Subject(s) - wadi , watershed , particulates , hydrology (agriculture) , environmental science , turbulence , flux (metallurgy) , flow (mathematics) , sediment , river mouth , geology , chemistry , geography , geomorphology , meteorology , geotechnical engineering , physics , cartography , organic chemistry , machine learning , computer science , mechanics
In Algeria, the particulate flow in rivers is poorly quantified in the wadi due to the absence and the non‐standardization of the acquisition of measurement data. Most studies on particulate flows are quantified from time series of hydrometric stations. The present study is based on weekly sampling of water at the mouth of the Soummam watershed for the hydrological year 2011/2012. The sediment flux is analyzed from measurements of suspended solids (SS). The determination coefficients between the annual and seasonal “ liquid flow–solid flow‐” relationships vary from 75% to 82%, respectively. During this period, the watershed of 9125 km 2 has provided a solid input estimated to 4.9 × 10 6 t yr −1 , hence a specific flow of 538 t km −2 yr −1 . In general, autumn floods were characterized by high concentrations of SS, which varies from 820 to 1275 mg L −1 . The most important sediment transport volumes were observed during the period of December to February, this period is characterized by strong turbulence, due to extreme flows, favoring the largest volumes of solid transport. © 2015 American Institute of Chemical Engineers Environ Prog, 35: 204–211, 2016