气候变化领域集成服务门户(CCPortal): Comparing Ocean Surface Boundary Vertical Mixing Schemes Including Langmuir Turbulence

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DOI	10.1029/2019MS001810
	Comparing Ocean Surface Boundary Vertical Mixing Schemes Including Langmuir Turbulence
	Li Q.; Reichl B.G.; Fox-Kemper B.; Adcroft A.J.; Belcher S.E.; Danabasoglu G.; Grant A.L.M.; Griffies S.M.; Hallberg R.; Hara T.; Harcourt R.R.; Kukulka T.; Large W.G.; McWilliams J.C.; Pearson B.; Sullivan P.P.; Van Roekel L.; Wang P.; Zheng Z.
发表日期	2019
ISSN	19422466
起始页码	3545
结束页码	3592
卷号	11 期号:11
英文摘要	Six recent Langmuir turbulence parameterization schemes and five traditional schemes are implemented in a common single-column modeling framework and consistently compared. These schemes are tested in scenarios versus matched large eddy simulations, across the globe with realistic forcing (JRA55-do, WAVEWATCH-III simulated waves) and initial conditions (Argo), and under realistic conditions as observed at ocean moorings. Traditional non-Langmuir schemes systematically underpredict large eddy simulation vertical mixing under weak convective forcing, while Langmuir schemes vary in accuracy. Under global, realistic forcing Langmuir schemes produce 6% (−1% to 14% for 90% confidence) or 5.2 m (−0.2 m to 17.4 m for 90% confidence) deeper monthly mean mixed layer depths than their non-Langmuir counterparts, with the greatest differences in extratropical regions, especially the Southern Ocean in austral summer. Discrepancies among Langmuir schemes are large (15% in mixed layer depth standard deviation over the mean): largest under wave-driven turbulence with stabilizing buoyancy forcing, next largest under strongly wave-driven conditions with weak buoyancy forcing, and agreeing during strong convective forcing. Non-Langmuir schemes disagree with each other to a lesser extent, with a similar ordering. Langmuir discrepancies obscure a cross-scheme estimate of the Langmuir effect magnitude under realistic forcing, highlighting limited understanding and numerical deficiencies. Maps of the regions and seasons where the greatest discrepancies occur are provided to guide further studies and observations. ©2019. The Authors.
英文关键词	JRA55-do; Langmuir turbulence; ocean surface boundary layer; parameterization; turbulent mixing
语种	英语
scopus关键词	Boundary layer flow; Boundary layers; Buoyancy; Large eddy simulation; Mixing; Oceanography; Parameterization; Turbulence; Initial conditions; JRA55-do; Langmuir turbulence; Ocean surfaces; Realistic conditions; Single-column model; Standard deviation; Turbulent mixing; Atmospheric thermodynamics; accuracy assessment; air-sea interaction; atmospheric convection; boundary layer; comparative study; large eddy simulation; mixed layer; mooring system; parameterization; turbulence; vertical mixing; Southern Ocean
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156826
作者单位	Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI, United States; Now at Fluid Dynamics and Solid Mechanics, Los Alamos National Laboratory, Los Alamos, NM, United States; NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ, United States; Met Office Hadley Centre, Exeter, United Kingdom; National Center for Atmospheric Research, Boulder, CO, United States; Department of Meteorology, University of Reading, Reading, United Kingdom; Graduate School of Oceanography, University of Rhode Island, Narragansett, RI, United States; Applied Physics Laboratory, University of Washington, Seattle, WA, United States; School of Marine Science and Policy, University of Delaware, Newark, DE, United States; Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, United States; College of Earth, Ocean, and Atmospheric Sciences, Oregon State Univer...
推荐引用方式 GB/T 7714	Li Q.,Reichl B.G.,Fox-Kemper B.,et al. Comparing Ocean Surface Boundary Vertical Mixing Schemes Including Langmuir Turbulence[J],2019,11(11).
APA	Li Q..,Reichl B.G..,Fox-Kemper B..,Adcroft A.J..,Belcher S.E..,...&Zheng Z..(2019).Comparing Ocean Surface Boundary Vertical Mixing Schemes Including Langmuir Turbulence.Journal of Advances in Modeling Earth Systems,11(11).
MLA	Li Q.,et al."Comparing Ocean Surface Boundary Vertical Mixing Schemes Including Langmuir Turbulence".Journal of Advances in Modeling Earth Systems 11.11(2019).