DOI: 10.1175/JCLI-D-12-00376.1
Scopus记录号: 2-s2.0-84883200439
论文题名: Parameterization of wind farms in climate models
作者: Fitch A.C. ; Olson J.B. ; Lundquist J.K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 17 起始页码: 6439
结束页码: 6458
语种: 英语
Scopus关键词: A1. largeeddy simulations (LES)
; Aerodynamic roughness length
; Low-level winds
; Near surface temperature
; Regional climate
; Sensible heat flux
; Temperature changes
; Wake structures
; Atmospheric temperature
; Climate models
; Electric utilities
; Heat flux
; Large eddy simulation
; Surface roughness
; Wind power
; aerodynamics
; climate modeling
; large eddy simulation
; momentum
; parameterization
; regional climate
; sensible heat flux
; surface temperature
; wind direction
; wind farm
; wind velocity
英文摘要: For assessing the impacts of wind farms on regional climate, wind farms may be represented in climate models by an increase in aerodynamic roughness length. Studies employing this method have found nearsurface temperature changes of 1-2K over wind farm areas. By contrast, mesoscale and large-eddy simulations (LES), which represent wind farms as elevated sinks of momentum, generally showed temperature changes of less than 0.5 K. This study directly compares the two methods of representing wind farms in simulations of a strong diurnal cycle. Nearly the opposite wake structure is seen between the two methods, both during the day and at night. The sensible heat fluxes are generally exaggerated in the enhanced roughness approach, leading to much greater changes in temperature. Frequently, the two methods display the opposite sign in temperature change. Coarse resolution moderates the sensible heat fluxes but does not significantly improve the near-surface temperatures or low-level wind speed deficit. Since wind farm impacts modeled by the elevated momentum sink approach are similar to those seen in observations and from LES, the authors conclude that the increased surface roughness approach is not an appropriate option to represent wind farms or explore their impacts. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51704
Appears in Collections: 气候变化事实与影响
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作者单位: Geophysical Institute, University of Bergen, Uni Research, Bergen, Norway; Mesoscale and Microscale Meteorology Division, National Center for Atmospheric Research, Boulder, CO, United States; NOAA/Earth System Research Laboratory, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States; Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, United States; National Renewable Energy Laboratory, Golden, CO, United States
Recommended Citation:
Fitch A.C.,Olson J.B.,Lundquist J.K.. Parameterization of wind farms in climate models[J]. Journal of Climate,2013-01-01,26(17)