干旱区生态环境知识资源中心(Arid): Seasonal Physical Fronts and Associated Biogeochemical-Ecological Effects off the Jiangsu Shoal in the Western Yellow Sea, China

Arid

DOI	10.1029/2020JC016304
	Seasonal Physical Fronts and Associated Biogeochemical-Ecological Effects off the Jiangsu Shoal in the Western Yellow Sea, China
	Wei, Qinsheng; Fu, Mingzhu; Sun, Junchuan; Yao, Qingzhen; Wang, Baodong; Liu, Xuehai; Yu, Zhigang
通讯作者	Wei, QS ; Wang, BD (corresponding author), Minist Nat Resources, Inst Oceanog 1, Qingdao, Peoples R China. ; Wei, QS ; Wang, BD (corresponding author), Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China.
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
EISSN	2169-9291
出版年	2020
卷号	125 期号:10
英文摘要	The Jiangsu Shoal and its adjacent area in the western Yellow Sea (YS) have become hotspots of ecological disasters in China and have attracted considerable attention. Based on remote sensing and field observations in this region, we investigated the physical fronts and their seasonal variations and clarified the spatiotemporal patterns of physical-biogeochemical factors as well as their interactions and synergies. The results show that pronounced physical fronts were present in the study area. Specifically, arc- and S-shaped thermal fronts existed off the shoal in summer and winter, respectively. The saline front largely expanded southeastward in spring, autumn, and winter, while it expanded northeastward in summer. The turbidity over the shoal was high year-round, and a marked turbidity front was formed between the nearshore water and the offshore seawater. The seasonal patterns and variations of the physical fronts significantly influenced material transport. During cold seasons, the frontal system was responsible for the significant turbid water plume expanding in a southeastern direction from the Jiangsu Coast. In summer, the arc-shaped thermal front confined the turbid water within the shoal. The expansion of excess dissolved inorganic nitrogen was consistent with the saline front, and the vertical transport of nutrients by upwelling occurred off the shoal in summer. Due to favorable conditions, the frontal region off the shoal is prone to high chlorophyll a (Chl-a) and may act as oases in either summer or winter. A conceptual diagram is assembled to provide an overview of physical-biogeochemical-ecological interactions off the Jiangsu Shoal in the western YS. Plain Language Summary The frequent occurrence of ecological disasters has posed a substantial threat to the western Yellow Sea (YS) ecosystem in recent years. Studying the environmental characteristics and biogeochemical processes in this area can contribute to an understanding of regional oceanography and lay a foundation for research on relevant ecological processes. Here, specific research on the physical fronts in the western YS and their seasonal variations was conducted, and the spatial-temporal patterns of physical-biogeochemical factors as well as their interactions and synergies in this region were explored. We show that pronounced thermohaline and turbidity fronts exist in the Jiangsu Shoal and its adjacent area. The distribution morphology and seasonal variations of thermohaline fronts potentially influence material transport. The frontal region off the Jiangsu Shoal is prone to high chlorophyll a in either summer or winter. The Jiangsu Shoal front could also play a role in shaping the distributions of ecological disasters (e.g., algae and jellyfish blooms). This work offers an overview of the coupled hydro-biogeochemical processes and ecological effects in the western YS and provides a scientific basis for the depiction of physical-biogeochemical dynamics. Key Points Pronounced physical fronts (i.e., thermohaline and turbidity fronts) are seasonally present in the Jiangsu Shoal and its adjacent area Thermohaline frontogenesis and its seasonal variations potentially influence material transport The frontal region off the Jiangsu Shoal is prone to high chlorophyll a (Chl-a) and may act as an oasis in either summer or winter
英文关键词	biogeochemical-ecological effect front Jiangsu Shoal upwelling Yellow Sea
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000612077200029
WOS关键词	LARGEST MACROALGAL BLOOM ; CROSS-SHELF CIRCULATION ; LARGEST GREEN TIDE ; EAST CHINA ; SURFACE-TEMPERATURE ; CALANUS-SINICUS ; CHLOROPHYLL-A ; OCEAN FRONTS ; PHYTOPLANKTON COMMUNITY ; SATELLITE VIEWS
WOS类目	Oceanography
WOS研究方向	Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348992
作者单位	[Wei, Qinsheng; Fu, Mingzhu; Sun, Junchuan; Wang, Baodong; Liu, Xuehai] Minist Nat Resources, Inst Oceanog 1, Qingdao, Peoples R China; [Wei, Qinsheng; Fu, Mingzhu; Yao, Qingzhen; Wang, Baodong; Yu, Zhigang] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China; [Sun, Junchuan; Liu, Xuehai] Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China; [Yao, Qingzhen; Yu, Zhigang] Ocean Univ China, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Qingdao, Peoples R China; [Yao, Qingzhen; Yu, Zhigang] Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Wei, Qinsheng,Fu, Mingzhu,Sun, Junchuan,et al. Seasonal Physical Fronts and Associated Biogeochemical-Ecological Effects off the Jiangsu Shoal in the Western Yellow Sea, China[J],2020,125(10).
APA	Wei, Qinsheng.,Fu, Mingzhu.,Sun, Junchuan.,Yao, Qingzhen.,Wang, Baodong.,...&Yu, Zhigang.(2020).Seasonal Physical Fronts and Associated Biogeochemical-Ecological Effects off the Jiangsu Shoal in the Western Yellow Sea, China.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,125(10).
MLA	Wei, Qinsheng,et al."Seasonal Physical Fronts and Associated Biogeochemical-Ecological Effects off the Jiangsu Shoal in the Western Yellow Sea, China".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 125.10(2020).