干旱区生态环境知识资源中心(Arid): Plume dispersal of a hyper-eutrophic micro-estuary to the eastern mediterranean during base flow and flood events

Arid

DOI	10.1016/j.ecss.2023.108554
	Plume dispersal of a hyper-eutrophic micro-estuary to the eastern mediterranean during base flow and flood events
	Shira, Boneh; Tom, Topaz; Tal, Ozer; Suari, Yair
通讯作者	Suari, Y
来源期刊	ESTUARINE COASTAL AND SHELF SCIENCE
ISSN	0272-7714
EISSN	1096-0015
出版年	2023
卷号	295
英文摘要	Rivers are the primary source of dissolved and particulate materials entering the oceans. Recent studies conducted in Mediterranean streams showed a decrease in freshwater flow which indicates that this oligotrophic region, and probably other semi-arid oligotrophic regions, are likely to become more affected by small stream discharge and an increase in flood event intensity and frequency which indicates the increasing importance of studying flood conditions. However, little is known about the dispersal patterns of small streams and microestuaries and their influence on the coastal environment. We investigated the discharge from the Alexander Stream micro-estuary into the eastern Mediterranean as a case study for the fate of nutrients and pollutants discharged from micro-estuaries. Our objective is to characterize the Alexander Stream plume dispersal during base flow and flood events using salinity as a tracer for solute dispersal and by measuring the concentrations of suspended matter. The advection pattern during base flow was characterized by a current that clings to shore and mostly flows southward as a thin layer. This steady influx enriches the coastal water with high nutrient loads and carries pollutants toward Beit Yannai recreational beach, chronically exposing the shore and its users year-round. During floods, the plume disperses mostly northward along the coastline, and a considerable volume of suspended sediments settles near the estuary outfall, creating a hotspot of potentially contaminated sediment. At the peak discharge of the flood, the high concentrations of suspended sediments form hyperpycnal flows seaward near the seafloor and along the shelf. These results show the influence of small streams on the marine and coastal environments in semi-arid regions, which is predicted to expand to more temperate zones in the future.
英文关键词	Mediterranean Aridity Coastal Pollutants Turbidity currents
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001149708200001
WOS关键词	HYPERPYCNAL FLOWS ; WATER DISPERSION ; COASTAL WATERS ; RIVER MOUTHS ; SURF ZONE ; SEA ; DISCHARGES ; PRODUCTIVITY ; CIRCULATION ; NUTRIENTS
WOS类目	Marine & Freshwater Biology ; Oceanography
WOS研究方向	Marine & Freshwater Biology ; Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396307
推荐引用方式 GB/T 7714	Shira, Boneh,Tom, Topaz,Tal, Ozer,et al. Plume dispersal of a hyper-eutrophic micro-estuary to the eastern mediterranean during base flow and flood events[J],2023,295.
APA	Shira, Boneh,Tom, Topaz,Tal, Ozer,&Suari, Yair.(2023).Plume dispersal of a hyper-eutrophic micro-estuary to the eastern mediterranean during base flow and flood events.ESTUARINE COASTAL AND SHELF SCIENCE,295.
MLA	Shira, Boneh,et al."Plume dispersal of a hyper-eutrophic micro-estuary to the eastern mediterranean during base flow and flood events".ESTUARINE COASTAL AND SHELF SCIENCE 295(2023).