Turbidity maximum formation and its seasonal variations in the Zhujiang(Pearl River)Estuary,southern China  

作　　者：LIU Runqi WANG Yaping GAO Jianhua WU Ziyin GUAN Weibing 

机构地区：[1]Collaborative Innovation Center of South China Sea Studies,Nanjing 210093,China [2]Ministry of Education Key Laboratory for Coast and Island Development,Nanjing University,Nanjing 210023,China [3]Key Laboratory of Submarine Geosciences,State Oceanic Administration,Hangzhou 310012,China [4]State Key Laboratory of Satellite Ocean Environment Dynamics,Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China

出　　处：《Acta Oceanologica Sinica》2016年第8期22-31,共10页海洋学报（英文版）

基　　金：The Ocean Special Funds for Scientific Research on Public Causes under contract No.201105001-2;the National Basic Research Program(973 Program)of China under contract No.2013CB956502;the National Natural Science Foundation of China under contract Nos 41376044,41276083 and 41476049

摘　　要：Real-time observations in the field and numerical simulations（with Delft3D） were combined to study the formation, distribution and the relevant influencing factors of turbidity maximum（TM） in the Zhujiang（Pearl River） Estuary（ZE）. The spatial distribution pattern of the TM varies with the longitudinal distributions of salinity and suspended sediment concentration（SSC）. The SSC is enhanced and the TM is intensified during dry seasons,whereas the center of the TM moves upstream by a distance of 10 km during wet seasons. The formation of the TM is influenced by a complex combination of numerous factors, including tides, river discharges and topography, wherein sediment resuspension and vertical circulation dominate the formations and variability of the TM.Real-time observations in the field and numerical simulations（with Delft3D） were combined to study the formation, distribution and the relevant influencing factors of turbidity maximum（TM） in the Zhujiang（Pearl River） Estuary（ZE）. The spatial distribution pattern of the TM varies with the longitudinal distributions of salinity and suspended sediment concentration（SSC）. The SSC is enhanced and the TM is intensified during dry seasons,whereas the center of the TM moves upstream by a distance of 10 km during wet seasons. The formation of the TM is influenced by a complex combination of numerous factors, including tides, river discharges and topography, wherein sediment resuspension and vertical circulation dominate the formations and variability of the TM.

关 键 词：sediment resuspension vertical circulation turbidity maximum Delft3D Zhujiang（Pearl River） Estuary 

分 类 号：TV148[水利工程—水力学及河流动力学]