Application of Linear System Models for Estimation of Wash Load

Raghuwanshi, N. S.; Rastogi, R. A.; Gupta, Santosh Kumar

doi:10.1007/978-94-011-0393-0_8

Cited by 1 publication

(2 citation statements)

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“…The base sediment flow of the sediment graph was separated in a manner similar to the separation of the base flow of the runoff hydrograph used by Chow (1964). The hydrological data has also been used by Kumar and Rastogi (1987), Raghuwanshi et al (1994Raghuwanshi et al ( , 1996. The basic characteristics of sediment graph data are given in Table 1.…”

Section: Applicationmentioning

confidence: 99%

“…Secondly, the method cannot be used on ungauged watersheds (Gracia-Sanchez 1996). On the other hand, to derive sediment graphs directly from rainfall of a storm, the regression type relations (between the effective rainfall and mobilized sediment) are in frequent use (Chen and Kuo 1986;Kumar and Rastogi 1987;Raghuwanshi et al 1994Raghuwanshi et al , 1996Sharma et al 1992;Sharma and Murthy 1996). The IUSG model based on linear reservoir concept of Nash (1957) has been employed by Kumar and Rastogi (1987), Sharma et al (1992) and Sharma and Murthy (1996).…”

Section: Introductionmentioning

confidence: 99%

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A Simple Conceptual Model of Sediment Yield

Bhunya

Jain

Singh

et al. 2009

Water Resour Manage

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The sediment graphs (time distribution of sediment yield) are very essential if the sediment transports the pollutants that are toxic at high concentrations, requiring determination of peak, rather than average sediment flow rate. In this paper, an effort has been made to develop a simple conceptual model of sediment yield based on Soil Conservation Service Curve Number (SCS-CN) method, instantaneous unit sediment graph (IUSG) method, and Power law and the performance is tested using real field data of Chaukhutia watershed of Ramganga river catchment (area = 452.25 km 2 ). The proposed model is found to provide realistic estimates of temporal variation of sediment yield as well as total sediment yield during a storm event. The model is found to be most sensitive to parameter β followed by k, α, A, and n s . A comparison is made with the existing IUSG based models of Kumar and Rastogi (J Hydrol 95:155-163, 1987) and Raghuwanshi et al. (J Hydraul Eng ASCE 120(4): 495-503, 1994) for developing sediment graphs.

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