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Inverse Problem for Looped River Networks – Lower Oder River Case Study

Kurnatowski J.

Archives of Environmental Protection

2013

Vol. 39, no. 1

105-118

Identification of coefficients determining flow resistance, in particular Manning’s roughness coefficients, is one of the possible inverse problems of mathematical modeling of flow distribution in looped river networks. The paper presents the solution of this problem for the lower Oder River network consisting of 78 branches connected by 62 nodes. Using results of six sets of flow measurements at particular network branches it was demonstrated that the application of iterative algorithm for roughness coeffi cients identification on the basis of the sensitivity-equation method leads to the explicit solution for all network branches, independent from initial values of identifi ed coefficients.