气候变化领域集成服务门户(CCPortal): A Simple Model of Chemistry Effects on the Air-Sea CO2 Exchange Coefficient

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DOI	10.1029/2018JC014808
	A Simple Model of Chemistry Effects on the Air-Sea CO2 Exchange Coefficient
	Jørgensen H.E.; Sørensen L.L.; Larsen S.E.
发表日期	2020
ISSN	21699275
卷号	125 期号:6
英文摘要	The transfer of CO2 between air and water can be quantified by the use of a transfer or exchange coefficient. Here we have studied the effect on the exchange coefficient of CO2 from inclusion of the carbonate buffer system in water. The methodology has been to solve the flux budget for the chemical reaction equations in the water column, combining the vertical flux in the air and the flux across the interface by the introduction of a so called resistance model for the whole system where the system has been simplified with respect to variation of certain parameters. The thermal effects on the flow and chemistry modeling have in the present study not been included, although this also plays a significant role on the air-sea exchange. The model shows the effects on the air-sea exchange coefficient from the carbonate chemistry in the water column are negligible if the measurements are taken at sufficient depth in the water. Hence, it is found that the skin layer or interface layer contains the largest resistance and therefore controls the flux. It is also shown that measurement of the near-surface CO2 gradients in ocean water is very difficult, as the gradients of CO2 occur within the first meter from the water surface. In reality, the equilibrium is reached within the first meter from the water surface. The results justify the use of standard methods to estimate the flux of CO2 by measuring a concentration at typical larger than 3 m depth and 10 m above the surface. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	air-sea exchange; carbon dioxide; flux
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186843
作者单位	Department of Wind Energy, Technical University of Denmark, Kongens Lyngby, Denmark; Arctic Research Centre, Department of Bioscience, Aarhus University, Aarhus, Denmark; Department of Environmental Science, Aarhus University, Roskilde, Denmark
推荐引用方式 GB/T 7714	Jørgensen H.E.,Sørensen L.L.,Larsen S.E.. A Simple Model of Chemistry Effects on the Air-Sea CO2 Exchange Coefficient[J],2020,125(6).
APA	Jørgensen H.E.,Sørensen L.L.,&Larsen S.E..(2020).A Simple Model of Chemistry Effects on the Air-Sea CO2 Exchange Coefficient.Journal of Geophysical Research: Oceans,125(6).
MLA	Jørgensen H.E.,et al."A Simple Model of Chemistry Effects on the Air-Sea CO2 Exchange Coefficient".Journal of Geophysical Research: Oceans 125.6(2020).