DOI: 10.1002/2017JC013380
Scopus记录号: 2-s2.0-85044511117
论文题名: Wave Attenuation and Gas Exchange Velocity in Marginal Sea Ice Zone
作者: Bigdeli A. ; Hara T. ; Loose B. ; Nguyen A.T.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 3 起始页码: 2293
结束页码: 2304
语种: 英语
英文关键词: air-sea gas exchange
; marginal sea ice zones
; wave age
Scopus关键词: air-sea interaction
; energy dissipation
; experimental study
; gas exchange
; ice cover
; kinetic energy
; marginal sea
; parameterization
; sea ice
; turbulence
; wave attenuation
; Arctic Ocean
英文摘要: The gas transfer velocity in marginal sea ice zones exerts a strong control on the input of anthropogenic gases into the ocean interior. In this study, a sea state-dependent gas exchange parametric model is developed based on the turbulent kinetic energy dissipation rate. The model is tuned to match the conventional gas exchange parametrization in fetch-unlimited, fully developed seas. Next, fetch limitation is introduced in the model and results are compared to fetch limited experiments in lakes, showing that the model captures the effects of finite fetch on gas exchange with good fidelity. Having validated the results in fetch limited waters such as lakes, the model is next applied in sea ice zones using an empirical relation between the sea ice cover and the effective fetch, while accounting for the sea ice motion effect that is unique to sea ice zones. The model results compare favorably with the available field measurements. Applying this parametric model to a regional Arctic numerical model, it is shown that, under the present conditions, gas flux into the Arctic Ocean may be overestimated by 10% if a conventional parameterization is used. © 2018. 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/114381
Appears in Collections: 气候减缓与适应
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作者单位: Graduate School of Oceanography, University of Rhode Island, Kingston, RI, United States; The Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX, United States
Recommended Citation:
Bigdeli A.,Hara T.,Loose B.,et al. Wave Attenuation and Gas Exchange Velocity in Marginal Sea Ice Zone[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(3)