globalchange  > 气候减缓与适应
DOI: 10.1029/2018JD028628
Scopus记录号: 2-s2.0-85052230998
论文题名:
Distinct Turbulence Structures in Stably Stratified Boundary Layers With Weak and Strong Surface Shear
作者: Lan C.; Liu H.; Li D.; Katul G.G.; Finn D.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:15
起始页码: 7839
结束页码: 7854
语种: 英语
英文摘要: Turbulence structures and exchange of momentum and heat in the nocturnal stable boundary layer (SBL) show distinct features under different stability conditions prompting interest in their connection. Here eddy covariance data collected at four different heights on a 62-m meteorological tower over a large open flat terrain are used to characterize different SBL states and associated turbulence structures. In a SBL characterized by strong near-surface winds, turbulent eddy sizes scale with their observational heights and the SBL experiences enhanced turbulent mixing of momentum and heat throughout (a state hereafter referred to as a “coupled” state). Conversely, in a decoupled SBL, weak winds occur near the surface and turbulent eddies are depressed and detached from the boundary leading to suppressed vertical mixing and layered SBL profiles. Because the transport of momentum and heat to the surface across SBL layers is determined by turbulent eddies, cross-layer correlation and the aforementioned SBL coupling states can be delineated by distinct turbulence structures. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113286
Appears in Collections:气候减缓与适应

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作者单位: Laboratory for Atmospheric Research, Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, United States; Department of Earth and Environment, Boston University, Boston, MA, United States; Nicholas School of the Environment, Duke University, Durham, NC, United States; Department of Civil and Environmental Engineering, Duke University, Durham, NC, United States; NOAA Air Resources Laboratory, Idaho Falls, ID, United States

Recommended Citation:
Lan C.,Liu H.,Li D.,et al. Distinct Turbulence Structures in Stably Stratified Boundary Layers With Weak and Strong Surface Shear[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(15)
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