DOI: 10.1002/2017JC013135
Scopus记录号: 2-s2.0-85041709505
论文题名: Flow Patterns in the Eastern Chukchi Sea: 2010–2015
作者: Stabeno P. ; Kachel N. ; Ladd C. ; Woodgate R.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 2 起始页码: 1177
结束页码: 1195
语种: 英语
英文关键词: Chukchi Sea
; currents
; transport
Scopus关键词: bathymetry
; drifter
; pressure gradient
; sea ice
; seasonal variation
; spatiotemporal analysis
; volume transport
; Alberta
; Arctic Ocean
; Bering Strait
; Canada
; Chukchi Sea
; Hanna
英文摘要: From 2010 to 2015, moorings were deployed on the northern Chukchi Sea at nine sites. Deployment duration varied from 5 years at a site off Icy Cape to 1 year at a site north of Hanna Shoal. In addition, 39 satellite-tracked drifters (drogue depth 25–30 m) were deployed in the region during 2012–2015. The goals of this manuscript are to describe currents in the Chukchi Sea and their relationship to ice and winds. The north-south pressure gradient results in, on average, a northward flow over the Chukchi shelf, which is modified by local winds. The volume transport near Icy Cape (∼0.4 Sv) was ∼40% of flow through Bering Strait and varied seasonally, accounting for >50% of summer and ∼20% of winter transport in Bering Strait. Current direction was strongly influenced by bathymetry, with northward flow through the Central Channel and eastward flow south of Hanna Shoal. The latter joined the coastal flow exiting the shelf via Barrow Canyon. Drifter trajectories indicated the transit from Bering Strait to the mouth of Barrow Canyon took ∼90 days during the ice-free season. Most (∼70%) of the drifters turned westward at the mouth of Barrow Canyon and continued westward in the Chukchi Slope Current. This slope flow was largely confined to the upper 300 m, and although it existed year-round, it was strongest in spring and summer. Drifter trajectories indicated that the Chukchi Slope Current extends as far west as the mouth of Herald Canyon. The remaining ∼30% of the drifters turned eastward or were intercepted by sea ice. © 2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114506
Appears in Collections: 气候减缓与适应
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作者单位: Ocean Environment Research Division, NOAA Pacific Marine Environmental Laboratory (PMEL), Seattle, WA, United States; Joint Institute for the Study of the Atmosphere and Ocean (JISAO), University of Washington, Seattle, WA, United States; Applied Physics Laboratory, University of Washington, Seattle, WA, United States
Recommended Citation:
Stabeno P.,Kachel N.,Ladd C.,et al. Flow Patterns in the Eastern Chukchi Sea: 2010–2015[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(2)