DOI: 10.1002/gbc.20080
Scopus记录号: 2-s2.0-84883197519
论文题名: Parameterizing bubble-mediated air-sea gas exchange and its effect on ocean ventilation
作者: Liang J ; -H ; , Deutsch C ; , McWilliams J ; C ; , Baschek B ; , Sullivan P ; P ; , Chiba D
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2013
卷: 27, 期: 3 起始页码: 894
结束页码: 905
语种: 英语
英文关键词: bubble-mediated gas transfer
; ocean ventilation
Scopus关键词: Earth system model
; Gas transfer
; Mechanistic modeling
; Ocean ventilations
; Oceanic boundary layers
; Surface cooling
; Surface supersaturation
; Undersaturation
; Argon
; Carbon dioxide
; Oceanography
; Parameterization
; Supersaturation
; Ventilation
; Wind effects
; Gases
; air-sea interaction
; boundary layer
; bubble
; deep sea
; gas exchange
; gas transport
; marine atmosphere
; noble gas
; numerical model
; parameterization
; solubility
; supersaturation
; turbulent flow
; ventilation
; Atlantic Ocean
; Pacific Ocean
英文摘要: Bubbles play an important role in the exchange of gases between the atmosphere and ocean, altering both the rate of exchange and the equilibrium gas saturation state. We develop a parameterization of bubble-mediated gas fluxes for use in Earth system models. The parameterization is derived from a mechanistic model of the oceanic boundary layer that simulates turbulent flows and the size spectrum of bubbles across a range of wind speeds and is compared against other published formulations. Bubble-induced surface supersaturation increases rapidly with wind speed and is inversely related to temperature at a given wind speed, making the effect of bubbles greatest in regions that ventilate the deep ocean. The bubble-induced supersaturation in high-latitude surface waters compensates a substantial fraction of the undersaturation caused by surface cooling. Using a global ocean transport model, we show that this parameterization reproduces observed saturation rate profiles of the noble gas Argon in the deep Atlantic and Pacific Oceans. The abyssal argon supersaturation caused by bubbles varies according to gas solubility, ranging from ∼0.7% for soluble gases like CO2 to ∼1.7% for less soluble gases such as N2. Bubble-induced supersaturation may be significant for biologically active gases such as oxygen. Key Points A parameterization for bubble-mediated gas exchange is proposed.Bubble effects are important for ocean ventilation. ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77584
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States; Applied Physics Laboratory, University of Washington, 1013 NE 40th Street, Seattle, WA 98105, United States; Institute of Coastal Research, Helmholtz-Zentrum Geesthacht Centre, Geesthacht, Germany; Mesoscale and Microscale Meteorology Division, National Center for Atmospheric Research, Boulder, CO, United States
Recommended Citation:
Liang J,-H,, Deutsch C,et al. Parameterizing bubble-mediated air-sea gas exchange and its effect on ocean ventilation[J]. Global Biogeochemical Cycles,2013-01-01,27(3)