DOI: 10.1002/2015GL063070
论文题名: Rising atmospheric CO2 leads to large impact of biology on Southern Ocean CO2 uptake via changes of the Revelle factor
作者: Hauck J. ; Völker C.
刊名: Geophysical Research Letters
ISSN: 0094-8910
EISSN: 1944-8641
出版年: 2015
卷: 42, 期: 5 起始页码: 1459
结束页码: 1464
语种: 英语
英文关键词: anthropogenic carbon
; biological carbon draw down
; buffer capacity
; feedback process
; ocean acidification
; ocean CO2 sink
Scopus关键词: Buffer storage
; Carbon
; Oceanography
; Anthropogenic carbon
; Biological carbon draw down
; Buffer capacity
; Feedback process
; Ocean acidifications
; Ocean CO<sub>2</sub> sink
; Carbon dioxide
; anthropogenic effect
; atmospheric pollution
; biological production
; biological uptake
; carbon dioxide
; global change
; Southern Ocean
英文摘要: The Southern Ocean is a key region for global carbon uptake and is characterized by a strong seasonality with the annual CO2 uptake being mediated by biological carbon drawdown in summer. Here we show that the contribution of biology to CO2 uptake will become even more important until 2100. This is the case even if biological production remains unaltered and can be explained by the decreasing buffer capacity of the ocean as its carbon content increases. The same amount of biological carbon drawdown leads to a more than twice as large reduction in CO2(aq) concentration and hence to a larger CO2 gradient between ocean and atmosphere that drives the gas exchange. While the winter uptake south of 44°S changes little, the summer uptake increases largely and is responsible for the annual mean response. The combination of decreasing buffer capacity and strong seasonality of biological carbon drawdown introduces a strong and increasing seasonality in the anthropogenic carbon uptake. © 2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925851679&doi=10.1002%2f2015GL063070&partnerID=40&md5=3ad114ab2bc02e645701cb794122be06
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8526
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: Alfred Wegener Institut Helmholtz Zentrum für Polar-und Meeresforschung, Bremerhaven, Germany
Recommended Citation:
Hauck J.,Völker C.. Rising atmospheric CO2 leads to large impact of biology on Southern Ocean CO2 uptake via changes of the Revelle factor[J]. Geophysical Research Letters,2015-01-01,42(5).