文档介绍：Dynamic Response of the Suspended Sediment
Change in the Tidal Channel of Jiangsu Sea Area
HU Guo-dong WU De-an *, YAN Yi-xin
yangtze river estuary investigation bureau of hydrology college of habour, coast and offshore engineering
and water resource, yrwrc hohai university
Shanghai , China Nanjing , China
e-mail: cjkhgd@ e-mail: wudeian@
Abstract—Taking the observed data of water and sediment of wavelet position is conducted on suspended sediment
two tidal cycles during middle tide at 4# station of Dongdagang concentration, flow velocity and sediment transport rate with
as an example, the thesis reveals the spectral relation and phase `dmey` wavelet with excellent smoothness. Five-layer wavelet
relation between the wavelet analysis signals in five layers about analysis is carried out, the signal S=A5+D5+D4+D3+D2 +D1.
flow velocity, water depth, wind speed and sediment A5 as the long-term changing trend may represent the
concentration in various layers in the tidal channel where 4# low-frequency change of signal, Di (i=1, 2 ,3, 4, 5) as the
station is located using wavelet analysis bination with detail of the signal may indicate high-frequency change of
maximum entropy power spectrum analysis, analyzes the signals
signal, A0 being the original signal of reconstruction, S the
about sediment concentration at different frequency band