| DOI: | 10.1002/2014GL061324
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| 论文题名: | Southern Ocean carbon trends: Sensitivity to methods |
| 作者: | Fay A.R.; McKinley G.A.; Lovenduski N.S.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9729
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| EISSN: | 1944-9460
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| 出版年: | 2014
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| 卷: | 41, 期:19 | | 起始页码: | 6833
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| 结束页码: | 6840
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| 语种: | 英语
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| 英文关键词: | carbon cycle
; pCO2
; Southern Ocean
; trend analysis
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| Scopus关键词: | Carbon dioxide
; Oceanography
; Carbon cycles
; Carbon dioxide flux
; Partial pressure of co
; PCO<sub>2</sub>
; Robust approaches
; Southern ocean
; Spatial gradients
; Trend analysis
; Carbon
; air-sea interaction
; carbon budget
; estimation method
; marine environment
; partial pressure
; spatial distribution
; Southern Ocean
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| 英文摘要: | The Southern Ocean is highly under-sampled with respect to variables needed to assess trends in air-sea carbon dioxide fluxes. Multiple investigators have made use of sparse measurements of surface ocean partial pressure of CO2 (pCO2), but there remains a lack of consensus as to recent trends in the carbon sink here. We analyze impacts of specific methodological choices on pCO2 trends, with a focus on regional binning, time series length, and spatial biases. We find the most robust approach to include binning based on geographic areas, the removal of spatial gradients in climatological pCO2, the use of annual-average data, and the consideration of trends across multiple combinations of start and end years. Applying this approach, we find that Southern Ocean carbon uptake slowed from about 1990 to 2006 and subsequently strengthened from 2007 to 2010. More data are needed to reduce uncertainties and increase our ability to diagnose change in the carbon sink. Key Points Methodological choices have substantial impact on ocean pCO2 trend estimatesRegional binning, data selection, and spatial bias correction are criticalSouthern Ocean carbon uptake slowed until 2006 but has strengthened since ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911387032&doi=10.1002%2f2014GL061324&partnerID=40&md5=95b901d4a11e303057216530a1e066a3
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6993
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Space Science and Engineering Center, University of Wisconsin, Madison, WI, United States
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| Recommended Citation: | |
Fay A.R.,McKinley G.A.,Lovenduski N.S.. Southern Ocean carbon trends: Sensitivity to methods[J]. Geophysical Research Letters,2014-01-01,41(19).
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