IOCAS-IR  > 海洋生态与环境科学重点实验室
Seasonal Hydrodynamics and Salt Exchange of a Shallow Estuary in Northern China
Zou, Tao1,2; Zhang, Hua2; Meng, Qingjia3; Li, Jia2
2016-09-01
Source PublicationJOURNAL OF COASTAL RESEARCH
Pages95-103
SubtypeArticle
AbstractEstuaries are important components of coastal ecosystem and function as dominant pathways of material exchange at the land-sea interface. The transport of terrestrial input through river inflow is controlled by physical process including tides, waves, and fresh water discharge. This study investigates hydrodynamic characteristic and salt flux within Xiaoqinghe River (XQR) estuary, which is a shallow estuarine system (water depth < 8 m) and exports substantial amount of nutrients and pollutants to the adjacent Laizhou Bay. Profile velocity and salinity are measured using ADCP and CTD through complete tidal cycles (25 hours) in April, July and September 2013. The instantaneous velocity and salinity data are decomposed into time-averaged means and time-varying components based on the improved Kjerfve (1986) method to quantify the contributions of various physical processes. The results showed that the XQR estuary had irregular semidiurnal tide with tidal form number of 0.5-0.7 and tidal range about 2 m. River discharge dominated the seasonal variation of tidal elevation, longitudinal velocity, and salinity. The river mouth was well mixed based on calculated layer Richardson number, and can be classified as Type 1b and 2b according to stratification-circulation diagram. The net salt flux was directed seaward during monsoon season and landward in non-monsoon seasons. Fluvial advective flow dominated the seaward salt flux throughout the year and contributed 78.9% of the net salt flux in monsoon. Stokes' drift and tidal sloshing dispersion flux dominated the landward salt flux, and contributed 72% and 57.5% of total salt flux in April and September, respectively. The cross-correlation between tide and salinity, and vertical shear, were only of marginal importance. Overall, tidal sloshing and Stokes' drift is the underlying process of salt transport while river discharge dominates its seasonal variation. This study revealed the inherent unsteadiness of the salt balance, and provided the scientific foundation for effective management of freshwater release from upstream during difference seasons.
KeywordStratification Slat Flux Estuary Xiaoqinghe River Classification
DOI10.2112/SI74-009.1
Indexed BySCI
Language英语
WOS IDWOS:000383795300010
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/135775
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
3.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zou, Tao,Zhang, Hua,Meng, Qingjia,et al. Seasonal Hydrodynamics and Salt Exchange of a Shallow Estuary in Northern China[J]. JOURNAL OF COASTAL RESEARCH,2016:95-103.
APA Zou, Tao,Zhang, Hua,Meng, Qingjia,&Li, Jia.(2016).Seasonal Hydrodynamics and Salt Exchange of a Shallow Estuary in Northern China.JOURNAL OF COASTAL RESEARCH,95-103.
MLA Zou, Tao,et al."Seasonal Hydrodynamics and Salt Exchange of a Shallow Estuary in Northern China".JOURNAL OF COASTAL RESEARCH (2016):95-103.
Files in This Item:
File Name/Size DocType Version Access License
Seasonal Hydrodynami(1516KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zou, Tao]'s Articles
[Zhang, Hua]'s Articles
[Meng, Qingjia]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zou, Tao]'s Articles
[Zhang, Hua]'s Articles
[Meng, Qingjia]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zou, Tao]'s Articles
[Zhang, Hua]'s Articles
[Meng, Qingjia]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Seasonal Hydrodynamics and Salt Exchange of a Shallow Estuary in Northern China.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.