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sediment-yield
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Application of unit response approach for spatial prioritization of runoff and sediment sources
, Article Agricultural Water Management ; Volume 109 , 2012 , Pages 36-45 ; 03783774 (ISSN) ; Sima, S ; Sadeghi, S ; Jeirani, F ; Sharif University of Technology
2012
Abstract
Evaluation and control of suspended sediment load as one of the main water quality concerns is important in large basins, especially in basins with planned dam construction. Success in sediment control measures depends, in particular, on proper identification of sediment sources. Since observations alone are normally not adequate for source prioritization/contribution in relation to the downstream sediment loads, hydrological simulation tools may be applied for spatial prioritization of runoff and sediment yield in basins. In this paper, subbasin prioritization was conducted for the Gharasu basin, located in southwestern Iran. Soil and Water Assessment Tool (SWAT) model was calibrated and...
Application of the WEPP model to determine sources of run-off and sediment in a forested watershed
, Article Hydrological Processes ; Volume 29, Issue 4 , 2015 , Pages 481-497 ; 08856087 (ISSN) ; Meghdadi, A. R ; Sima, S ; Sharif University of Technology
John Wiley and Sons Ltd
2015
Abstract
This study investigates critical run-off and sediment production sources in a forested Kasilian watershed located in northern Iran. The Water Erosion Prediction Project (WEPP) watershed model was set up to simulate the run-off and sediment yields. WEPP was calibrated and validated against measured rainfall-run-off-sediment data. Results showed that simulated run-off and sediment yields of the watershed were in agreement with the measured data for the calibration and validation periods. While low and medium values of run-off and sediment yields were adequately simulated by the WEPP model, high run-off and sediment yield values were underestimated. Performance of the model was evaluated as...
Sediment yield in the Daryacheh-Namak drainage basin, Iran, and its relation to land-use changes
, Article IAHS-AISH Publication, 11 July 2007 through 13 July 2007, Perugia ; Issue 314 , 2007 , Pages 306-311 ; 01447815 (ISSN) ; 9781901502145 (ISBN) ; Mohammadi, A ; Zakikhani, S ; Sharif University of Technology
2007
Abstract
Monthly and annual variations in sediment yield during a 24-year period were analysed for 10 sub-catchments in the Daryacheh-Namak drainage basin, Iran. Highest specific suspended sediment yields were recorded at Razin and the lowest at Solan, reflecting large land-use changes in the former, and the presence of relatively resistant formations in thelatter sub-catchment. Highest sediment yields were observed in the months of April, March, May and November, and the lowest in September and August. At almost all stations, the highest sediment yield occurs in the spring, reflecting higher rainfall in that season. Copyright © 2007 IAHS Press