摘要
根据1988年洪、枯季在长江口南、北槽进行的最大浑浊带专项水文观测的资料，对悬沙输移的分项因子进行研究。结果表明，长江口最大浑浊带的悬沙输移过程存在明显的潮泵效应及强烈的悬沙、底沙双向交换;长江口南、北槽之间存在一个大尺度的平面环向是沙输移，同时南、北槽自身还有次一级尺度的槽内平面环向悬沙输移。本文还探讨了最大浑浊带与拦门浅滩相互影响、彼此制约的关系。
On the basis of data observed the turbidity maximum of theChangjiang River Estuary in rainy and dry seasons of 1988, the component itemsof suspended sediment transport are analyzed and studied. It comes to the conclusion that there exist significant tidal pumping effect and strong exchange betweensuspended load and bedload during the transport process of suspended matter inthe turbidity maximum of the Changiiang kiver Estuary. A larger plane-looping nettransport of suspended sediment between the South and the North Channels andsecondary plane- looping net transport in respective channel are described. The relation that turbidity maximum and rivermouth bar are mutually impacted and conditioned is briefly discussed.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1996年第1期60-66,共7页
Oceanologia Et Limnologia Sinica
基金
国家自然科学重大基金!9487005
关键词
长江河口
浑浊带
悬沙输移
潮泵效应
Changjiang River Estuary
Turbidity maximum
Suspended sediment transport
Tidal pumping effect
