%0 Journal Article
%A ZHANG Yun-chao
%A LI Ling-yun
%A FAN Bei-lin
%A ZHENG Shan
%T Delayed Response of Cross Section Area to Variable Incoming Flow and Sediment at Shashi Segment of Yangtze River
%D 2016
%R 10.11988/ckyyb.20150336
%J Journal of Changjiang River Scientific Research Institute
%P 1-5
%V 33
%N 7
%X Analysis on the measured flow and sediment data of the middle reaches of the Yangtze River as well as the section data indicates that the adjustment of channel morphology at  Shashi station is delayed to the variation of flow and sediment conditions. In order to obtain  the regularity of delayed response  of Shashi section, we   improved  the delayed response model for river evolution in the Yellow River in three aspects: 1) define the cross section area at the annual average low water level of Shashi section as the characteristic variable of the delayed response model; 2) introduce the “yearly combined flow” ;3) use the piecewise function in the iterative formula of the model. The results show that the determinant coefficient  <i>R</i><sup>2</sup> of delayed response model for river evolution at  Shashi section is between 0.7 and 0.8.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20150336