globalchange  > 科学计划与规划
DOI: 10.1002/2015GL067152
论文题名:
Submesoscale streamers exchange water on the north wall of the Gulf Stream
作者: Klymak J.M.; Shearman R.K.; Gula J.; Lee C.M.; D'Asaro E.A.; Thomas L.N.; Harcourt R.R.; Shcherbina A.Y.; Sundermeyer M.A.; Molemaker J.; McWilliams J.C.
刊名: Geophysical Research Letters
ISSN: 0094-9391
EISSN: 1944-9122
出版年: 2016
卷: 43, 期:3
起始页码: 1226
结束页码: 1233
语种: 英语
英文关键词: eddies ; Gulf Stream ; ocean mixing ; submesoscale mixing
Scopus关键词: Mixing ; Ocean currents ; Oceanography ; Surface waters ; Compensated temperature ; Eddies ; Gulf Stream ; Ocean mixing ; Subpolar North Atlantic ; Substantial energy ; Subtropical mode waters ; Water mass ; Rivers ; eddy ; energy flux ; flux measurement ; sea surface salinity ; sea surface temperature ; subtropical region ; vertical mixing ; water exchange ; water mass ; Atlantic Ocean ; Atlantic Ocean (North) ; Gulf Stream
英文摘要: The Gulf Stream is a major conduit of warm surface water from the tropics to the subpolar North Atlantic. Here we observe and simulate a submesoscale (<20 km) mechanism by which the Gulf Stream exchanges water with subpolar water to the north. Along isopycnals, the front has a sharp compensated temperature-salinity contrast, with distinct mixed water between the two water masses 2 and 4 km wide. This mixed water does not increase downstream despite substantial energy available for mixing. A series of streamers detrain this water at the crest of meanders. Subpolar water replaces the mixed water and resharpens the front. The water mass exchange accounts for a northward flux of salt of 0.5-2.5 psu m2 s-1, (large-scale diffusivity O (100 m2 s-1)). This is similar to bulk-scale flux estimates of 1.2 psu m2 s-1 and supplies fresher water to the Gulf Stream required for the production of 18° subtropical mode water. © 2016. The Authors.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969352780&doi=10.1002%2f2015GL067152&partnerID=40&md5=cd4515a87021feea48041d530fd4492a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10354
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: School of Earth and Ocean Sciences, University of Victoria, Victoria, BC, Canada

Recommended Citation:
Klymak J.M.,Shearman R.K.,Gula J.,et al. Submesoscale streamers exchange water on the north wall of the Gulf Stream[J]. Geophysical Research Letters,2016-01-01,43(3).
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