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Inversion-Optimization Method for Determination of Longitudinal Dispersion Coefficient in River

To overcome the difficulty in the identification of parameter of the water environmental system caused by the limited observation data with noise, a new method, namely inversion-optimization method, was suggested for determination of longitudinal dispersion coefficient in river. The method which based on one dimensional water quality model with instantaneous source, was validated by a test. The influences on parameter estimation of observation norse, instrument precision were discussed in detail. The computational results indicate that inversion-optimization method can give good precision inversion results for tracer test.