ASSESSING SUSPENDED SEDIMENT YIELD IN THE SAF SAF GAUGED CATCHMENT, NORTHEASTERN ALGERIA
Journal Title: Malaysian Journal of Geosciences - Year 2019, Vol 3, Issue 2
Abstract
Many studies on sediment transport have been carried out on Algerian rivers but few studies have been undertaken in catchments of the Northeast of Algeria. The scarcity or discontinuity on sediment transport measurements reduces knowledge about soil loss. In some cases, researchers find often difficulties to apply the most suitable methods to estimate sediment load. The present work represents an assessment of suspended sediment yield from the Saf Saf catchment (322 km2) over 39 years. Long-term annual suspended sediment loads are estimated using non-linear power model, developed on mean discharge class technique as a sediment rating curve. There is a challenge to estimate suspended sediment load in the Saf Saf catchment, which is distinguished by rapid discharge variation. A second aim is to examine monthly and annual variations in discharge, suspended concentration, rainfall and load in this river and to find causes for these variations. The results show that the mean annual sediment yield is equal to 477 T km-2 yr-1 during the study period. Moreover, the long term variability analysis of sediment load seems to be very high from year to year depending on climatic conditions. The analysis of annual sediment load shows a decreasing trend along 39 years, mainly from 1997. Most sediment loads are transported during the winter season, which represents 78% of the total sediment load. The understanding of sediment transport relationships gained from this study should provide a good starting point for researchers and policymakers to begin addressing sediment issues within the catchment.
Authors and Affiliations
K. Khanchoul, Z. A. Boukhrissa
Keywords
Related Articles
- EP ID EP590800
- DOI -
- Views 109
- Downloads 0
DEVELOPMENT OF HUMANITARIAN SUPPLY CHAIN PERFORMANCE CONCEPTUAL FRAMEWORK IN CREATING RESILIENT LOGISTICS NETWORK
Humanitarian logistics which is precisely known as humanitarian supply chain (HSC) plays a major role in reducing the impact of disaster on human life and livelihood by providing humanitarian aid in the forms of food, wa...
ELECTRICAL RESISTIVITY AND HYDROGEOCHEMICAL EVALUATION OF SEPTIC-TANKS EFFLUENT MIGRATION TO GROUNDWATER
Water quality degradation through different kinds of pollutants is a major concern globally. Hence, this study becomes imperative in order to determine the effects of groundwater pollution due to septic tank effluent. In...
ESTIMATION OF PEAK GROUND ACCELERATION OF RANAU BASED ON RECENT EARTQHUAKE DATABASES
The occurrence of earthquake with magnitude MW 6.0 in Ranau recently has triggered many questions regarding their nature of recurrence, characteristics in size and mechanism in and its surrounding region. In recent years...
STAKEHOLDERS’ RESPONSE AND PERSPECTIVES ON FLOOD DISASTER OF PAHANG RIVER BASIN
The Pahang river basin is the largest river basin in the Pahang State, with total catchment area covering 29300km2. Floods of Pahang river basin have become an annual natural disaster event where all the stakeholders hav...
CHARACTERIZATION AND UTILIZATION OF CLAYS FROM ORIGO AND AWO SOUTHWESTERN NIGERIA
This study discusses the possible industrial applications of clay from south western Nigeria based on mineralogy and chemical composition. Qualitative and quantitative X-ray Diffractometric Studies (XRD) was performed on...