Flood routing in river networks using equivalent muskingum inflow. It essentially incorporates sound hydraulic principles using the kinematic wave approach to estimate muskingum method. To illustrate the solution of the muskingum method requires the computation of k and x, which are usually obtained using the graphical approach. Chapter 17 was originally prepared by victor mockus, former hydraulic. Parameter estimation of the muskingum channel flood. Lecture 8 flood routingengineering hydrology in english. Like all hydrologic routing methods, it does not account for complex flow. The muskingum cunge method assumes that water surface in the reach is a uniform unbroken surface profile between upstream and downstream ends of the channel4,8. Flood routing in ungauged catchments using muskingum methods. This is an excel sheet to simulate flood routing by muskingum method. Flood wave routing methods are adapted for small, naturally meandering streams. The lack of wedge storage means that the method should only be used for slowly varying flood waves. However, there is still some dispute about the muskingum method.
Spreadsheet model for flood routing by muskingum method. In addition to the standard muskingum method, flood modeller also includes the three variants of the more accurate variable parameter muskingumcunge vpmc method to route the flow. However, as the parameters of this model are estimated by analyzing both inflow and outflow data, the application of this model to an ungauged channel reach has been limited. Hydrology for small watersheds computer program utilizes tr20 to do its. Flow routing methods are generally categorized into two somewhat related applications, namely channel routing and reservoir routing lawyer 1964 or else the. The results obtained shows that the computedgenerated using the outflow hydrographs. The performance of the calibrated muskingumcunge flood routing method using observed hydrographs displayed acceptable results. Muskingumcunge hydrocad stormwater modeling software. Flood routing in river reaches using a threeparameter. The muskingumcunge method, and refinements thereof, have been amply documented in previous work by cunge 1969, koussis 1978, 1980, ponce 1983, ponce and yevjevich 1978, smith 1980, and weinmann and laurenson 1979. Muskingum cunge model was used with 27 series of field data and compared with sirmod results. Chapter 17 flood routing natural resources conservation.
Therefore, the muskingumcunge flood routing method was applied in ungauged catchments, with variables estimated empirically. Abstract the muskingum flood routing method is widely used by hydrologists and good results are frequently achieved. Pdf extended muskingum method for flood routing researchgate. This is an extension of the original muskingum method. Field experiments were performed in shahid chamran university field area, ahwaz, iran. Muskingumcunge method for channel flood routing has been documented in. Application of feedforward artificial neural network in. The proposed method is conceptually and computationally. This method has been extensively researched to find an ideal parameter estimation of its nonlinear forms, which require more parameters, and are not often adequate for flood routing in natural rivers with. Calculating the parameters of muskingum methods for a. A muskingumcunge channel flow routing method for drainage. Department of agriculture usda soil conservation service.
Hydrocad8 provides the mc procedure in addition to several earlier reach routing procedures. A routing scheme is proposed for situations where the storage and weighted flow relationship is nonlinear. Similarly, reservoir routing requires a storage function, and a. The method is a special case of the muskingum method where channel storage is represented by the prism component alone with no wedge storage, i. In this paper it is shown that the muskingum method is an approximate solution of the instantaneous unit hydrograph iuh of the lag and route flood routing method. Luo bokun bureau office, wuhan, peoples republic of china. The coefficients k and x in the linear muskingum equation are determined by the least squares method lsm. The muskingum routing model, despite its limitations, is a widely used technique, and produces flood values and the time of the flood peak.
Flood routing by the muskingum method sciencedirect. The muskingum routing unit models the flow of water in natural and manmade open channels using the muskingum method to route the flow. Submitted to the graduate degree program in civil engineering and the. However, check that with the selected dt, parameter values meet restrictions. To illustrate the solution of the muskingum method requires the. Ganetxl is a program that uses a genetic algorithm to solve a. This video demonstrates the use of muskingum method to find downstream hydrograph from upstream hydrograph. Use the muskingum routing procedure to route the hydrograph tabulated below through the same river reach of part a.
The improved noah land surface model based on storage. However, the availability of mc will probably make it the preferred method for all long reaches. A software, called mupers muskingum parameter estimation and flood routing system was developed for estimating the parameters of a linear or nonlinear muskingum model of choice and for routing the flood through the river reach. Pdf routing of floods is essential to control the flood flow at the flood control. Muskingumcunge mc is the standard reach routing procedure used in the new nrcs wintr20 software, and is increasingly used for modeling long reaches that exhibit significant storage or kinematic effects. The muskingum routing calculates the discharge within a river or channel reach given the inflow hydrograph at the upstream end. The muskingumcunge reach routing procedure was added in hydrocad8 so that a wider range of circumstances can be modeled with hydrocad.
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