Variable Parameter Multilinear Muskingum Method: Case Study on the Danube River

Slovak Journal of Civil Engineering

Michaela Danáčová^1¹ 

[1] Slovak University of Technology, Faculty of Civil Engineering, Dept. of Land and Water Resources Management,, Bratislava, Slovakia^1

关键词: Muskingum method;    Multilinear model;    Travel-time discharge relationship;    Danube River;   

DOI  :  10.2478/sjce-2018-0029

学科分类：建筑学

来源: Slovenska Technicka Univerzita v Bratislave * Stavebna Fakulta

【 摘 要 】

The Muskingum method is based on a linear relationship between a channel’s storage and inflow and outflow discharges. The applicability of using travel-time discharge relationships to model the variability of the K parameter in a Muskingum routing model was tested. The new parameter estimation method is based on the relationships between the traveltime parameter (K) and the input discharge for the reach of the Danube River between Devín-Bratislava and Medveďov, which includes the Gabčíkovo hydropower scheme. The variable parametrisation method was compared with the classical approach. The parameter X was taken as the average of its values from a small set of flood waves, K was estimated as a function of the travel-time parameter and discharge, which was optimized for one flood wave. The results were validated using the Nash-Sutcliffe coefficient on 5 floods. The results obtained by these methods were satisfactory and, with their use, one could reduce the amount of data required for calibration in practical applications.

【 授权许可】

Unknown