Tidal variation of total suspended solids over the Yangtze Bank based on the geostationary ocean color imager  

作　　者：Yu ZHOU Jiliang XUAN Daji HUANG 

机构地区：[1]State Key Laboratory of Satellite Ocean Environment Dynamics,Second Institute of Oceanography,Ministry of Natural Resources,Hangzhou 310012,China [2]Key Laboratory of Conservation and Restoration of Tropical and Subtropical Marine Natural Resources,Fourth Institute of Oceanography,Ministry of Natural Resources,Beihai 536000,China

出　　处：《Science China Earth Sciences》2020年第9期1381-1389,共9页中国科学（地球科学英文版）

基　　金：supported by the National Key Research&Development Program of China(Grant No.2016YFC1401603);the NSFC-Zhejiang Joint Fund for the Integration of Industrialization and Informatization(Grant No.U1609201);the National Natural Science Foundation of China(Grant No.41621064)。

摘　　要：Hourly mapping by a Geostationary Ocean Color Imager was used to reveal the spatial pattern and tidal variation of total suspended solids(TSS)over the Yangtze Bank in the Yellow and East China Seas during the winter.The TSS form a tongueshaped structure,which decreases further offshore in a stepwise manner.The stepwise change is separated by two fronts of TSS,which are located near the 20-m and 50-m isobaths.The tidal variation of TSS concentration during the study period is evident and can be divided into three stages:decay,maintenance,and growth.Compared with the relatively stationary TSS during the maintenance stage,drastic changes exist during the decay and growth stages.In terms of tide-induced mixing,the dynamic analysis shows that both the topography and the tidal currents play an important role in the spatio-temporal variation of TSS during the tidal period.In particular,spatial distribution is primarily determined by the topography,whereas the temporal variations in tidal scale are determined by the tidal currents.

关 键 词：Yangtze Bank Total suspended solid(TSS) Particle concentration Tidal variation Tide-induced mixing 

分 类 号：P736.2[天文地球—海洋地质] P731.23[天文地球—海洋科学]