气候变化领域集成服务门户(CCPortal): Decadal trends in the ocean carbon sink

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DOI	10.1073/pnas.1900371116
	Decadal trends in the ocean carbon sink
	DeVries T.; Le Quéré C.; Andrews O.; Berthet S.; Hauck J.; Ilyina T.; Landschützer P.; Lenton A.; Lima I.D.; Nowicki M.; Schwinger J.; Séférian R.
发表日期	2019
ISSN	0027-8424
起始页码	11646
结束页码	11651
卷号	116 期号:24
英文摘要	Measurements show large decadal variability in the rate of CO2 accumulation in the atmosphere that is not driven by CO2 emissions. The decade of the 1990s experienced enhanced carbon accumulation in the atmosphere relative to emissions, while in the 2000s, the atmospheric growth rate slowed, even though emissions grew rapidly. These variations are driven by natural sources and sinks of CO2 due to the ocean and the terrestrial biosphere. In this study, we compare three independent methods for estimating oceanic CO2 uptake and find that the ocean carbon sink could be responsible for up to 40% of the observed decadal variability in atmospheric CO2 accumulation. Data-based estimates of the ocean carbon sink from pCO2 mapping methods and decadal ocean inverse models generally agree on the magnitude and sign of decadal variability in the ocean CO2 sink at both global and regional scales. Simulations with ocean biogeochemical models confirm that climate variability drove the observed decadal trends in ocean CO2 uptake, but also demonstrate that the sensitivity of ocean CO2 uptake to climate variability may be too weak in models. Furthermore, all estimates point toward coherent decadal variability in the oceanic and terrestrial CO2 sinks, and this variability is not well-matched by current global vegetation models. Reconciling these differences will help to constrain the sensitivity of oceanic and terrestrial CO2 uptake to climate variability and lead to improved climate projections and decadal climate predictions. © 2019 National Academy of Sciences. All rights reserved.
英文关键词	Carbon budget; Carbon dioxide; Climate; Ocean carbon sink; Terrestrial carbon sink; Variability
语种	英语
scopus关键词	carbon dioxide; Article; bioaccumulation; biogeochemistry; carbon footprint; carbon sink; climate change; controlled study; intermethod comparison; ocean environment; prediction; priority journal; trend study; vegetation
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160363
作者单位	DeVries, T., Department of Geography, University of California, Santa Barbara, CA 93106, United States, Earth Research Institute, University of California, Santa Barbara, CA 93106, United States; Le Quéré, C., Tyndall Centre for Climate Change Research, School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom; Andrews, O., Tyndall Centre for Climate Change Research, School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom, School of Geographical Sciences, University of Bristol, Bristol, BS8 1TH, United Kingdom; Berthet, S., Centre National de Recherche Météorologique, Unite Mixte de Recherche, Toulouse, 31100, France; Hauck, J., Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar und Meeresforschung, Bremerhaven, 27570, Germany; Ilyina, T., Max Planck Institute for Meteorology, Hamburg, 20146, Germany; Landschützer, P., Max Planck Institute for Meteorology, Hamburg, 20146, Germany; Lenton, A., Oceans and Atmosphere, Commonwealth ...
推荐引用方式 GB/T 7714	DeVries T.,Le Quéré C.,Andrews O.,et al. Decadal trends in the ocean carbon sink[J],2019,116(24).
APA	DeVries T..,Le Quéré C..,Andrews O..,Berthet S..,Hauck J..,...&Séférian R..(2019).Decadal trends in the ocean carbon sink.Proceedings of the National Academy of Sciences of the United States of America,116(24).
MLA	DeVries T.,et al."Decadal trends in the ocean carbon sink".Proceedings of the National Academy of Sciences of the United States of America 116.24(2019).