泥沙研究2017，Vol.42Issue(4)：53-59,7.DOI:10.16239/j.cnki.0468-155x.2017.04.008
珠江磨刀门河口悬沙浓度变化特征分析
The study on suspended sediment transport mechanism in flood and the dry season in Modaomen Estuary of the Pearl River
摘要
Abstract
This paper studies the characteristics of suspended sediment concentration according to the multi point synchronous observation data in spring tide,middle tide,neap tide in flood and dry season at Modaomen Estuary.The result shows that the longitudinal distribution of suspended sediment concentration of inshore is high while the offshore is low.The lateral distribution of suspended sediment concentration shows difference in different season that the suspended sediment concentration of main channel is higher than beach in flood season but the beach is higher in dry season.The vertical distribution of suspended sediment concentration looks like slash in flood season while parabola in dry season;the average sediment concentration in spring tide is higher than mid tide an neap tide,and it's larger at ebbing time than at flooding time.In flood season,the sediment concentration mixed evenly and increases at ebbing time while decreases at flooding time.In dry season,the sediment stratification is obvious and there are several significant resuspension process in a tidal period,which increases in flooding time and decreases at ebbing time.关键词
磨刀门/洪枯季/悬沙浓度/再悬浮Key words
Modaomen Estuary/flood and dry season/sediment concentration/resuspension分类
建筑与水利引用本文复制引用
卢陈,何用,吴门伍,杨裕桂..珠江磨刀门河口悬沙浓度变化特征分析[J].泥沙研究,2017,42(4):53-59,7.基金项目
国家自然科学基金项目(51409286) （51409286）
长江科学院开放研究基金项目(CKWV2017499/KY) （CKWV2017499/KY）
珠科院开放基金项目([2013] KJ05) （[2013] KJ05）
