气候变化领域集成服务门户(CCPortal): Origin, Variability, and Pathways of East Sea Intermediate Water in a High-Resolution Ocean Reanalysis

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DOI	10.1029/2020JC017158
	Origin, Variability, and Pathways of East Sea Intermediate Water in a High-Resolution Ocean Reanalysis
	Kim S.-Y.; Park Y.-G.; Kim Y.H.; Seo S.; Jin H.; Pak G.; Lee H.J.
发表日期	2021
ISSN	21699275
卷号	126 期号:6
英文摘要	The East Sea Intermediate Water (ESIW) is the subsurface salinity minimum layer in the depth range 200–400 m in the East/Japan Sea. The origin, variability, and pathways of the ESIW were investigated using a 4-year-long (2015–2018) high-resolution (1/24°) ocean reanalysis and Lagrangian particle modeling. A backward particle tracking analysis revealed that the ESIW was formed south of Vladivostok and shows strong interannual variability. In 2018, owing to strong northwesterly winds, heat loss to the air intensified, and freshwater transport from the northern East/Japan Sea was simultaneously decreased by about 18% compared with the previous year. Furthermore, there was increased formation of water masses heavier than that of the typical ESIW, and the volume of the ESIW was reduced. A forward particle tracking analysis showed that the contribution of the particles originated from the northern end of the East/Japan Sea was about two times greater than those from the southern end. The major portion of the ESIW's freshwater came from the northern East/Japan Sea, where sea ice melted and the Amur River discharged. The remaining portion was from the Changjiang River, which came through the Korea Strait. The ESIW reached the Ulleung Basin over the course of a year mainly through the deep channel, the Ulleung Trough, located to the north of the basin. The diapycnal diffusivity of 1.0 × 10−4 m2 s−1 could erode away the low salinity core in about 27 years. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	East Sea Intermediate Water; East/Japan Sea; low salinity water; Ocean reanalysis (OPEM); particle tracking method; Ulleung Basin
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186263
作者单位	Ocean Science and Technology School, Korea Maritime and Ocean University, Busan, South Korea; Ocean Circulation Research Center, Korea Institute of Ocean Science and Technology, Busan, South Korea; Department of Oceanography, Pukyong National University, Busan, South Korea; Department of Ocean Science, Korea Maritime and Ocean University, Busan, South Korea
推荐引用方式 GB/T 7714	Kim S.-Y.,Park Y.-G.,Kim Y.H.,et al. Origin, Variability, and Pathways of East Sea Intermediate Water in a High-Resolution Ocean Reanalysis[J],2021,126(6).
APA	Kim S.-Y..,Park Y.-G..,Kim Y.H..,Seo S..,Jin H..,...&Lee H.J..(2021).Origin, Variability, and Pathways of East Sea Intermediate Water in a High-Resolution Ocean Reanalysis.Journal of Geophysical Research: Oceans,126(6).
MLA	Kim S.-Y.,et al."Origin, Variability, and Pathways of East Sea Intermediate Water in a High-Resolution Ocean Reanalysis".Journal of Geophysical Research: Oceans 126.6(2021).