DOI: 10.1002/grl.50335
论文题名: Height-dependent transition from 3-D to 2-D turbulence in the hurricane boundary layer
作者: Byrne D. ; Zhang J.A.
刊名: Geophysical Research Letters
ISSN: 0094-9172
EISSN: 1944-8903
出版年: 2013
卷: 40, 期: 7 起始页码: 1439
结束页码: 1442
语种: 英语
英文关键词: Boundary Layer Processes
; Subgrid scale paramaterization
; three-dimensional
; Tropical Cyclones
; Turbulence
; two-dimensional
Scopus关键词: Aircraft measurement
; Boundary layer process
; Fundamental changes
; Hurricane boundary layers
; Measurements of
; Subgrid scale
; Tropical cyclone
; Wind velocities
; Boundary layers
; Hurricanes
; Three dimensional
; Turbulence
; Atmospheric thermodynamics
; airborne survey
; boundary layer
; energy flow
; flow modeling
; height determination
; hurricane
; parameterization
; three-dimensional modeling
; turbulence
; two-dimensional modeling
; vortex
; wind velocity
英文摘要: Here we show, from in situ aircraft measurements in the hurricane boundary layer, a height-dependent transition of the flow from 3-D to 2-D turbulence. This marks a fundamental change in the energy dynamics of the hurricane boundary layer due to the fact that in 3-D, energy flows downscale from larger to smaller scales, whereas in 2-D, it flows upscale, from smaller to larger scales. These results represent the first measurement of the 2-D upscale energy flux in the atmosphere and also the first to characterize the transition from 3-D to 2-D. It is shown that the large-scale parent vortex may gain energy directly from small scales in tropical cyclones. Key Points Measurements of wind velocity in the hurricane boundary layer are analysed A height dependent transition from 3D to 2D turbulence is observed This transition changes the energy flow from downscale to upscale ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876896499&doi=10.1002%2fgrl.50335&partnerID=40&md5=efafcdf4c5280459541dc1fe31915f5d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6436
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Biogeochemistry and Pollutant Dynamics, Department of Environmental, ETH Zürich, Zurich, Switzerland
Recommended Citation:
Byrne D.,Zhang J.A.. Height-dependent transition from 3-D to 2-D turbulence in the hurricane boundary layer[J]. Geophysical Research Letters,2013-01-01,40(7).