气候变化领域集成服务门户(CCPortal): A new roughness length parameterization accounting for wind-wave (mis)alignment

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DOI	10.5194/acp-19-6681-2019
	A new roughness length parameterization accounting for wind-wave (mis)alignment
	Porchetta S.; Temel O.; Muñoz-Esparza D.; Reuder J.; Monbaliu J.; Van Beeck J.; Van Lipzig N.
发表日期	2019
ISSN	16807316
起始页码	6681
结束页码	6700
卷号	19 期号:10
英文摘要	Two-way feedback occurs between offshore wind and waves. However, the influence of the waves on the wind profile remains understudied, in particular the momentum transfer between the sea surface and the atmosphere. Previous studies showed that for swell waves it is possible to have increasing wind speeds in case of aligned wind-wave directions. However, the opposite is valid for opposed wind-wave directions, where a decrease in wind velocity is observed. Up to now, this behavior has not been included in most numerical models due to the lack of an appropriate parameterization of the resulting effective roughness length. Using an extensive data set of offshore measurements in the North Sea and the Atlantic Ocean, we show that the wave roughness length affecting the wind is indeed dependent on the alignment between the wind and wave directions. Moreover, we propose a new roughness length parameterization, taking into account the dependence on alignment, consisting of an enhanced roughness length for increasing misalignment. Using this new roughness length parameterization in numerical models might facilitate a better representation of offshore wind, which is relevant to many applications including offshore wind energy and climate modeling. © Author(s) 2019.
语种	英语
scopus关键词	numerical model; parameterization; swell; wind profile; wind velocity; wind wave; Atlantic Ocean; Atlantic Ocean; North Sea
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144395
作者单位	KU Leuven, Department Earth and Environmental Sciences, Leuven, Belgium; Von Karman Institute for Fluid Dynamics, Sint-Genesius-Rode, Belgium; National Center for Atmospheric Research, Boulder, CO, United States; Geophysical Institute, University of Bergen, Bjerknes Centre for Climate Research, Bergen, Norway; KU Leuven, Department of Civil Engineering, Leuven, Belgium
推荐引用方式 GB/T 7714	Porchetta S.,Temel O.,Muñoz-Esparza D.,et al. A new roughness length parameterization accounting for wind-wave (mis)alignment[J],2019,19(10).
APA	Porchetta S..,Temel O..,Muñoz-Esparza D..,Reuder J..,Monbaliu J..,...&Van Lipzig N..(2019).A new roughness length parameterization accounting for wind-wave (mis)alignment.Atmospheric Chemistry and Physics,19(10).
MLA	Porchetta S.,et al."A new roughness length parameterization accounting for wind-wave (mis)alignment".Atmospheric Chemistry and Physics 19.10(2019).