DOI: 10.1002/2013GL058799
论文题名: How deep is deep enough? Ocean iron fertilization and carbon sequestration in the Southern Ocean
作者: Robinson J. ; Popova E.E. ; Yool A. ; Srokosz M. ; Lampitt R.S. ; Blundell J.R.
刊名: Geophysical Research Letters
ISSN: 0094-10208
EISSN: 1944-9939
出版年: 2014
卷: 41, 期: 7 起始页码: 2489
结束页码: 2495
语种: 英语
英文关键词: deep circulation
; Lagrangian particle tracking
; ocean iron fertilization
; Southern Ocean
Scopus关键词: Biogeochemistry
; Climate change
; Iron
; Ocean currents
; Antarctic Circumpolar Currents
; Anthropogenic carbon
; Carbon sequestration
; Intergovernmental panel on climate changes
; Iron fertilization
; Lagrangian particle tracking
; Phytoplankton productivity
; Southern ocean
; Carbon
; Antarctic Circumpolar Wave
; biological production
; carbon sequestration
; deep sea
; Ekman pumping
; fertilization (reproduction)
; Intergovernmental Panel on Climate Change
; iron
; Lagrangian analysis
; phytoplankton
; water mass
; Southern Ocean
英文摘要: Artificial ocean iron fertilization (OIF) enhances phytoplankton productivity and is being explored as a means of sequestering anthropogenic carbon within the deep ocean. To be considered successful, carbon should be exported from the surface ocean and isolated from the atmosphere for an extended period (e.g., the Intergovernmental Panel on Climate Change's standard 100 year time horizon). This study assesses the impact of deep circulation on carbon sequestered by OIF in the Southern Ocean, a high-nutrient low-chlorophyll region known to be iron stressed. A Lagrangian particle-tracking approach is employed to analyze water mass trajectories over a 100 year simulation. By the end of the experiment, for a sequestration depth of 1000 m, 66% of the carbon had been reexposed to the atmosphere, taking an average of 37.8 years. Upwelling occurs predominately within the Antarctic Circumpolar Current due to Ekman suction and topography these results emphasize that successful OIF is dependent on the physical circulation, as well as the biogeochemistry. Key Points Carbon export to 1000 m does not guarantee sequestration in the Southern Ocean OIF requires consideration of the circulation as well as biogeochemistry Sequestered carbon is dispersed widely out of the Southern Ocean by circulation © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899037180&doi=10.1002%2f2013GL058799&partnerID=40&md5=42196723e8ea311692a905f10c8a8b3d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7472
Appears in Collections: 气候减缓与适应
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作者单位: Ocean and Earth Science, University of Southampton, Southampton, United Kingdom
Recommended Citation:
Robinson J.,Popova E.E.,Yool A.,et al. How deep is deep enough? Ocean iron fertilization and carbon sequestration in the Southern Ocean[J]. Geophysical Research Letters,2014-01-01,41(7).