DOI: 10.1002/2017JC013198
Scopus记录号: 2-s2.0-85042211908
论文题名: Mesoscale Eddy Activity and Transport in the Atlantic Water Inflow Region North of Svalbard
作者: Crews L. ; Sundfjord A. ; Albretsen J. ; Hattermann T.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 1 起始页码: 201
结束页码: 215
语种: 英语
英文关键词: Arctic Ocean
; baroclinic instability
; boundary current
; eddies
; halocline
; transport
Scopus关键词: baroclinic instability
; baroclinic motion
; biogeochemistry
; boundary current
; continental slope
; deep water ventilation
; deformation
; halocline
; hydrographic survey
; inflow
; mesoscale eddy
; seasonality
; summer
; transport process
; vorticity
; Arctic
; Arctic Ocean
; Arctic Ocean
; Atlantic Ocean
; Canada Basin
; Eurasian Basin
; Pacific Ocean
; Svalbard
; Svalbard and Jan Mayen
; Yermak Plateau
英文摘要: Mesoscale eddies are known to transport heat and biogeochemical properties from Arctic Ocean boundary currents to basin interiors. Previous hydrographic surveys and model results suggest that eddy formation may be common in the Atlantic Water (AW) inflow area north of Svalbard, but no quantitative eddy survey has yet been done for the region. Here vorticity and water property signatures are used to identify and track AW eddies in an eddy-resolving sea ice-ocean model. The boundary current sheds AW eddies along most of the length of the continental slope considered, from the western Yermak Plateau to 40°E, though eddies forming east of 20°E are likely more important for slope-to-basin transport. Eddy formation seasonality reflects seasonal stability properties of the boundary current in the eastern portion of the study domain, but on and immediately east of the Yermak Plateau enhanced eddy formation during summer merits further investigation. AW eddies tend to be anticyclonic, have radii close to the local deformation radius, and be centered in the halocline. They transport roughly 0.16 Sv of AW and, due to their warm cores, 1.0 TW away from the boundary current. These findings suggest eddies may be important for halocline ventilation in the Eurasian Basin, as has been shown for Pacific Water eddies in the Canadian Basin. © 2017. 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/114822
Appears in Collections: 气候减缓与适应
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作者单位: UiT Norway's Arctic University, Tromsø, Norway; Norwegian Polar Institute, Tromsø, Norway; Institute of Marine Research, Bergen, Norway; Akvaplan-niva AS, Tromsø, Norway; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Recommended Citation:
Crews L.,Sundfjord A.,Albretsen J.,et al. Mesoscale Eddy Activity and Transport in the Atlantic Water Inflow Region North of Svalbard[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(1)