气候变化领域集成服务门户(CCPortal): Cold Water Upwelling Near the Anadyr Strait: Observations and Simulations

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DOI	10.1029/2020JC016238
	Cold Water Upwelling Near the Anadyr Strait: Observations and Simulations
	Kawaguchi Y.; Nishioka J.; Nishino S.; Fujio S.; Lee K.; Fujiwara A.; Yanagimoto D.; Mitsudera H.; Yasuda I.
发表日期	2020
ISSN	21699275
卷号	125 期号:9
英文摘要	Anadyr Strait, located at the northernmost reaches of the Bering Sea, influences pan-Arctic climate through processes occurring in the strait as the Siberian Coastal Current carries water from the subpolar North Pacific Ocean into the western Arctic Ocean. A sharp sea surface temperature front near the Anadyr Strait segregates a tongue-shaped mass of warm water from areas of cold-water upwelling proximate to the Siberian coast. To clarify dynamical processes in this region, we conducted shipboard observations through and near the Anadyr and Bering straits during the summers of 2017 and 2018. Microstructure measurements show enhanced turbulence near the sea floor as strong throughflow occurs in the narrow straits. Direct observations of ocean currents indicate that the semidiurnal barotropic tide partly contributes to the near-bottom currents driving mixing. Frictional effects accompanying the barotropic current are examined using a three-dimensional regional model. Bottom friction produces a westward Ekman current in the bottom boundary layer, which then causes upwelling of underlying cold water on the western (Siberian) side of the Anadyr Strait. Secondary circulation across the strait is also maintained by the near-surface eastward velocity, which is established by the steep slope of the main thermocline. ©2020. The Authors.
英文关键词	Anadyr Strait; Arctic Ocean; Bering Sea; coastal upwelling; Siberian Coastal Current; tidal mixing
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/186678
作者单位	Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan; Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan; Arctic Research Center, Hokkaido University, Sapporo, Japan; Institute of Arctic Climate and Environmental Research, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan; Korea Institute of Ocean Science and Technology, Busan, South Korea
推荐引用方式 GB/T 7714	Kawaguchi Y.,Nishioka J.,Nishino S.,et al. Cold Water Upwelling Near the Anadyr Strait: Observations and Simulations[J],2020,125(9).
APA	Kawaguchi Y..,Nishioka J..,Nishino S..,Fujio S..,Lee K..,...&Yasuda I..(2020).Cold Water Upwelling Near the Anadyr Strait: Observations and Simulations.Journal of Geophysical Research: Oceans,125(9).
MLA	Kawaguchi Y.,et al."Cold Water Upwelling Near the Anadyr Strait: Observations and Simulations".Journal of Geophysical Research: Oceans 125.9(2020).