文档介绍：Inversion-optimization method for determination of
longitudinal dispersion coefficient in river
LIU Xiao-dong1,2, XUE Hong-qin3,YAO Qi1,2, XIANG Li-ping1,2, XIE Zeng-fang2
( of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes;
of Environmental Science & Engineering, Hohai University, Nanjing 210098, China.
3. College of Civil Engineering , Nanjing Forestry University, Nanjing 210037, China.)
Abstract—To e the difficulty in the identification of optimizing process largely avoided the calculation error caused
parameter of the water environmental system caused by the
by test, as showed in [8]. Many research achievements on
limited observation data with noise, a new method, namely
inversion-optimization method, was suggested for determination tracer test method have been published, nevertheless many
of longitudinal dispersion coefficient in river. The method which method cann’t get the true coefficient with observation data with
based on one dimensional water quality model with
noise. In the same time the calculation accuracy of longitudinal
instantaneous source, was validated by a test. The influences on
dispersion coefficient depend on not only calculation method,
parameter estimation of observation norse, instrument precision
were discussed in detail. putational results in