FIELD OBSERVATIONS ON BED SEDIMENTS AND SANDWAVES IN CHANGJIANG ESTUARY

作     者：Jiufa LI1,Xinning WAN1,2,Ming YING3 and Xiaohua CHEN41 Prof.,3,4 Dr.,State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200062,China,2Dr.Engr.Shanghai Institute of Waterways,Shanghai 200120,China 

作者机构：State Key Laboratory of Estuarine and Coastal Research East China Normal University Shanghai 200062 China State Key Laboratory of Estuarine and Coastal Research East China Normal University Shanghai 200062 China State Key Laboratory of Estuarine and Coastal Research East China Normal University Shanghai 200062 China 

出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))

年 卷 期：2005年第20卷第2期

页      面：129-135页

学科分类：08[工学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 

基　　金：The Physical Science Fund is acknowledged for authorizing the study of the bed load transport in the Changjiang estuary(50179012) 

主　　题：Changjiang estuary Sediment Bedload transport Granularity Sandwave 

摘      要：A series of advanced instruments were applied to obtain the field data of bed,bed forms and relevant dynamic factors in the 150 km-long reach of the Changjiang River from Jiangyin to Hengsha Island in March 2002. We found that well-sorted fine sand was in the majority of the bed sediment,which had a median diameter of 2 . Well-developed sandwaves were formed because the grains jumped together on the bed,which was related to the granularity and current velocity during the flood-ebb tidal cycles.