气候变化领域集成服务门户(CCPortal): Reconciling Observation and Model Trends in North Atlantic Surface CO2

CCPortal

DOI	10.1029/2019GB006186
	Reconciling Observation and Model Trends in North Atlantic Surface CO2
	Lebehot A.D.; Halloran P.R.; Watson A.J.; McNeall D.; Ford D.A.; Landschützer P.; Lauvset S.K.; Schuster U.
发表日期	2019
ISSN	0886-6236
EISSN	1944-9224
起始页码	1204
结束页码	1222
卷号	33 期号:10
英文摘要	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.
语种	英语
scopus关键词	carbon dioxide; concentration (composition); model validation; numerical model; quantitative analysis; simulation; uncertainty analysis; Atlantic Ocean; Atlantic Ocean (North)
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129708
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
推荐引用方式 GB/T 7714	Lebehot A.D.,Halloran P.R.,Watson A.J.,et al. Reconciling Observation and Model Trends in North Atlantic Surface CO2[J],2019,33(10).
APA	Lebehot A.D..,Halloran P.R..,Watson A.J..,McNeall D..,Ford D.A..,...&Schuster U..(2019).Reconciling Observation and Model Trends in North Atlantic Surface CO2.Global Biogeochemical Cycles,33(10).
MLA	Lebehot A.D.,et al."Reconciling Observation and Model Trends in North Atlantic Surface CO2".Global Biogeochemical Cycles 33.10(2019).