海洋地质与第四纪地质2011，Vol.31Issue(2)：49-57,9.DOI:10.3724/SP.J.1140.2011.02049
连云港近岸海域悬沙浓度垂向时空变化特征
VERTICAL CHANGES IN SUSPENDED SEDIMENT CONCENTRATION IN THE LIANYUNGANG NEARSHORE AREA
张存勇 1冯秀丽2
作者信息
- 1. 中国海洋大学海洋地球科学学院,青岛266100
- 2. 淮海工学院测绘工程学院,连云港222005
- 折叠
摘要
Abstract
Synchronically measured were tidal current, suspended sediment concentration and salinity at 15 stations in the Lianyungang nearshore area for 6 vertical layers during the spring and mesotidal cycle.Temporal and spatial changes in suspended sediment concentration were studied, and the variation in suspended sediment concentration in the tidal cycle, impact factors and the re-suspended sediment fluxes calculated.The results show that the spatial distribution of suspended sediment concentration in the Lianyungang nearshore area is in line with the general distribution pattern of suspended sediments.The peak concentration of suspended sediment appears at a certain depth above the sea-bottom during high and low tide with strong tidal current.The frequency of peak concentration of suspended sediment is low nearshore,but the intensity is greater; whereas the frequency of peak concentration of suspended sediment is high offshore, but the intensity is lower.Tidal resuspension is the main reason of those peaks.The changes of the vertical distribution of suspended sediment concentration could be grouped into 4 types.Tidal current and water depth are the main controlling factors.关键词
悬沙浓度/时空变化/近岸海域/连云港Key words
Lianyungang/ nearshore/ suspended sediment concentrations/ temporal and spatial changes分类
海洋科学引用本文复制引用
张存勇,冯秀丽..连云港近岸海域悬沙浓度垂向时空变化特征[J].海洋地质与第四纪地质,2011,31(2):49-57,9.
