globalchange  > 科学计划与规划
DOI: 10.1002/2015GL066463
论文题名:
The wineglass effect shapes particle export to the deep ocean in mesoscale eddies
作者: Waite A.M.; Stemmann L.; Guidi L.; Calil P.H.R.; Hogg A.M.C.; Feng M.; Thompson P.A.; Picheral M.; Gorsky G.
刊名: Geophysical Research Letters
ISSN: 0094-8599
EISSN: 1944-8330
出版年: 2016
卷: 43, 期:18
起始页码: 9791
结束页码: 9800
语种: 英语
英文关键词: carbon flux ; export flux ; mesoscale ; particle ; sedimentation
Scopus关键词: Earth sciences ; Geophysics ; Particles (particulate matter) ; Sedimentation ; Carbon fluxes ; Export flux ; Measure in situ ; Mesoscale ; Particle transport ; Radial particles ; Sinking velocity ; Subsurface distribution ; Oceanography
英文摘要: Mesoscale eddies in the ocean strongly impact the distribution of planktonic particles, mediating carbon fluxes over ~1/3 of the world ocean. However, mechanisms controlling particle transport through eddies are complex and challenging to measure in situ. Here we show the subsurface distribution of eddy particles funneled into a wineglass shape down to 1000 m, leading to a sevenfold increase of vertical carbon flux in the eddy center versus the eddy flanks, the “wineglass effect”. We show that the slope of the wineglass (R) is the ratio of particle sinking velocity to the radially inward velocity, such that R represents a tool to predict radial particle movement (here 0.05 m s−1). A simple model of eddy spindown predicts such an ageostrophic flow concentrating particles in the eddy center. We explore how size-specific particle flux toward the eddy center impacts eddies' biogeochemistry and export fluxes. ©2016. The Authors.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988432423&doi=10.1002%2f2015GL066463&partnerID=40&md5=b19a5694ce73d478e7a29ca6e0a2462d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9562
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: Oceans Institute and School of Environmental Systems Engineering, University of Western Australia, Crawley, WA, Australia

Recommended Citation:
Waite A.M.,Stemmann L.,Guidi L.,et al. The wineglass effect shapes particle export to the deep ocean in mesoscale eddies[J]. Geophysical Research Letters,2016-01-01,43(18).
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