globalchange  > 气候变化与战略
DOI: 10.1029/2019GB006186
论文题名:
Reconciling Observation and Model Trends in North Atlantic Surface CO2
作者: Lebehot A.D.; Halloran P.R.; Watson A.J.; McNeall D.; Ford D.A.; Landschützer P.; Lauvset S.K.; Schuster U.
刊名: Global Biogeochemical Cycles
ISSN: 0886-6236
EISSN: 1944-9224
出版年: 2019
卷: 33, 期:10
语种: 英语
英文关键词: carbon dioxide ; concentration (composition) ; model validation ; numerical model ; quantitative analysis ; simulation ; uncertainty analysis ; Atlantic Ocean ; Atlantic Ocean (North)
中文摘要: The North Atlantic Ocean is a region of intense uptake of atmospheric CO2. To assess how this CO2 sink has evolved over recent decades, various approaches have been used to estimate basin-wide uptake from the irregularly sampled in situ CO2 observations. Until now, the lack of robust uncertainties associated with observation-based gap-filling methods required to produce these estimates has limited the capacity to validate climate model simulated surface ocean CO2 concentrations. After robustly quantifying basin-wide and annually varying interpolation uncertainties using both observational and model data, we show that the North Atlantic surface ocean fugacity of CO2 (fCO2−ocean) increased at a significantly slower rate than that simulated by the latest generation of Earth System Models during the period 1992–2014. We further show, with initialized model simulations, that the inability of these models to capture the observed trend in surface fCO2−ocean is primarily due to biases in the models' ocean biogeochemistry. Our results imply that current projections may underestimate the contribution of the North Atlantic to mitigating increasing future atmospheric CO2 concentrations. ©2019. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160103
Appears in Collections:气候变化与战略

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作者单位: Geography, College of Life and Environmental Studies, University of Exeter Laver Building, Exeter, United Kingdom; Marine Research Institute, Department of Oceanography, University of Cape Town, Cape Town, South Africa; Southern Ocean Carbon-Climate Observatory (SOCCO), CSIR, Cape Town, South Africa; Met Office, Exeter, United Kingdom; Max Planck Institute for Meteorology, Hamburg, Germany; NORCE Norwegian Research Center, Bjerknes Centre for Climate Research, Bergen, Norway; Geophysical Institute, Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway

Recommended Citation:
Lebehot A.D.,Halloran P.R.,Watson A.J.,et al. Reconciling Observation and Model Trends in North Atlantic Surface CO2[J]. Global Biogeochemical Cycles,2019-01-01,33(10)
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