气候变化领域集成服务门户(CCPortal): Origin and Fate of the Chukchi Slope Current Using a Numerical Model and In-Situ Data

CCPortal

DOI	10.1029/2021JC017291
	Origin and Fate of the Chukchi Slope Current Using a Numerical Model and In-Situ Data
	Leng H.; Spall M.A.; Pickart R.S.; Lin P.; Bai X.
发表日期	2021
ISSN	21699275
卷号	126 期号:5
英文摘要	A regional coupled sea ice-ocean model and mooring/shipboard measurements are used to investigate the origins, seasonality, and downstream fate of the Chukchi Slope Current (CSC). Three years (2013–2015) of model integration indicates that, in the mean, the model slope current transports ∼0.45 Sv of Pacific water northwestward along the Chukchi continental slope. Only 62% of this water emanates from Barrow Canyon, while the rest (38%) is fed by a westward jet extending from the southern Beaufort Sea. The jet merges with the outflow from the canyon, forming the CSC. Due to these two distinct origins, the slope current in the model has a double velocity core at times. This is consistent with the double-core structure of the slope current seen in ship-based observations. Seasonal changes in the volume, heat, and freshwater transports by the slope current appear to be related to the changes in the upstream flows. A tracer diagnostic in the model suggests that the part of the slope current over the upper continental slope continues westward toward the East Siberian Sea, while the portion of the current overlying deeper isobaths flows northward into the Chukchi Borderland, where it ultimately gets entrained into the Beaufort Gyre. Our study provides a detailed and complete picture of the slope current. © 2021. American Geophysical Union. All Rights Reserved.
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/186326
作者单位	Key Laboratory of Marine Hazards Forecasting, Ministry of Natural Resources, Hohai University, Nanjing, China; College of Oceanography, Hohai University, Nanjing, China; Woods Hole Oceanographic Institution, Woods Hole, MA, United States
推荐引用方式 GB/T 7714	Leng H.,Spall M.A.,Pickart R.S.,et al. Origin and Fate of the Chukchi Slope Current Using a Numerical Model and In-Situ Data[J],2021,126(5).
APA	Leng H.,Spall M.A.,Pickart R.S.,Lin P.,&Bai X..(2021).Origin and Fate of the Chukchi Slope Current Using a Numerical Model and In-Situ Data.Journal of Geophysical Research: Oceans,126(5).
MLA	Leng H.,et al."Origin and Fate of the Chukchi Slope Current Using a Numerical Model and In-Situ Data".Journal of Geophysical Research: Oceans 126.5(2021).