华东师范大学学报（自然科学版）Issue(2)：170-180,11.DOI:10.3969/j.issn.1000-5641.2018.02.018
长江口洪季南北槽落潮分流分沙比观测研究
Study of the ebb sediment diversion ratios during wet season in the South and North Passage, Changjiang Estuary
摘要
Abstract
This study investigates the characteristics of the ebb water and sediment diversion ratios during wet season in the North Passage,Changjiang Estuary and the reasons for the differences within neap-spring tidal cycles based on field measurements.The results of the measurements indicate that the averaged ebb flow diversion ratios of the North Passage in spring and neap tide are 41.9％ and 43.1％,respectively,while the averaged ebb sediment diversion ratios of the North Passage in spring and neap tide are35.1％ and 39％,the averaged ebb sediment diversion ratios of the North Passage in spring can approximate representatively ebb sediment diversion status.The ebb sediment diversion ratio of the North Passage is dependent on the ratios of mean flow velocity,suspended sediment concentration and section areas of the North and South Passage.And these parameters show minor changes within neap-spring tidal cycles.Therefore,it can be concluded that the differences of ebb flow and sediment diversions of the North Passage within neap-spring tidal cycles are limited.关键词
长江口/洪季/大小潮/落潮分沙比Key words
Changjiang Estuary/wet season/neap-spring tide/ebb sediment diversion ratio分类
海洋科学引用本文复制引用
杨万伦,道付海,栾华龙,葛建忠,丁平兴..长江口洪季南北槽落潮分流分沙比观测研究[J].华东师范大学学报（自然科学版）,2018,(2):170-180,11.基金项目
国家自然科学基金(41476076) （41476076）
