气候变化领域集成服务门户(CCPortal): Eddy-driven sea-level rise near the frontal region off the east coast of the Korean peninsula during 1993-2020

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DOI	10.3389/fmars.2024.1283076
	Eddy-driven sea-level rise near the frontal region off the east coast of the Korean peninsula during 1993-2020
	Lee, KyungJae; Park, Jae-Hyoung; Park, Young-Gyu
发表日期	2024
EISSN	2296-7745
起始页码	11
卷号	11
英文摘要	Introduction: Understanding the underlying dynamics of regional sea-level rise (SLR), which often deviates from global trends, is crucial for mitigating and adapting to the impacts of severe climate change. This study investigated the causes of high regional SLR rates (> 6.0 mm yr(-1)) around the frontal region near Ulleung Island in the southwestern East/Japan Sea (EJS). Despite exhibiting rates higher than the global average (3.1 mm yr(-1)) from 1993 to 2020, the reasons for these higher rates in this region have not been clearly elucidated. Methods: We aimed to clarify the quantitative effect of the long-term variations of the Ulleung Warm Eddy (UWE) on the high SLR rates near Ulleung Island based on satellite altimetry and ship-based hydrographic data. Results: During this period, the temperature within the UWE increased, particularly at the temperature-homogeneous layer of approximately 200 m, the lower boundary of the UWE deepened, and the eddy duration per year increased, resulting in high SLR rates within the eddy owing to the steric height rise. The long-term variations in the internal temperature and vertical thickness of the UWE had significantly comparable impacts on SLR rates, with the duration being less influential. The SLR rates by integrating all long-term variations in the UWE (7.6 mm yr(-1)) quantitatively explained the high long-term SLR rates at Ulleung Island (7.0 mm yr(-1)). Discussion: The increasing temperature within the UWE was attributed to the rising temperature of water flowing through the southwestern strait (Korean Strait) in late fall, and the deepening lower boundary and the increasing duration of the UWE resulted from the increased horizontal temperature gradients near the front, leading to enhanced baroclinic instability in the subsurface layers. Our findings suggest that long-term variations in mesoscale eddies can significantly influence the regional SLR rates, deviating substantially from the global average in the frontal region.
英文关键词	Korean peninsula; sea-level rise; frontal region; mesoscale eddies; sea-level
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:001161694600001
来源期刊	FRONTIERS IN MARINE SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304722
作者单位	Korea Institute of Ocean Science & Technology (KIOST); Pukyong National University
推荐引用方式 GB/T 7714	Lee, KyungJae,Park, Jae-Hyoung,Park, Young-Gyu. Eddy-driven sea-level rise near the frontal region off the east coast of the Korean peninsula during 1993-2020[J],2024,11.
APA	Lee, KyungJae,Park, Jae-Hyoung,&Park, Young-Gyu.(2024).Eddy-driven sea-level rise near the frontal region off the east coast of the Korean peninsula during 1993-2020.FRONTIERS IN MARINE SCIENCE,11.
MLA	Lee, KyungJae,et al."Eddy-driven sea-level rise near the frontal region off the east coast of the Korean peninsula during 1993-2020".FRONTIERS IN MARINE SCIENCE 11(2024).