請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/45495
標題: Determining aerodynamic roughness using tethersonde and heat flux measurements in an urban area over a complex terrain
作者: Tsuang, B.J.
莊秉潔
Tsai, J.L.
Lin, M.D.
Chen, C.L.
林明德
關鍵字: aerodynamic roughness
complex terrain
Taichung
tethersonde
sensible
heat flux
latent heat flux
Bowen Ratio method
unstable surface-layer
shear-stress
model
parameters
temperatures
displacement
environment
pollutants
stability
profiles
期刊/報告no:: Atmospheric Environment, Volume 37, Issue 14, Page(s) 1993-2003.
摘要: Zero-plane displacement and aerodynamic roughness measurements were conducted using a tethersonde system in the third largest city in Taiwan. A method for determining the roughness under unstable conditions was developed. The resulting aerodynamic roughness and sensible heat flux were found to be very sensitive to a prescribed zero-plane displacement value. To minimize the uncertainty, the Bowen Ratio method was used to choose the correct sensible heat flux and zero-plane displacement values. Although the study site has the highest building height reported in the literature, its aerodynamic roughness value was determined to be 2.1 m, lower than values commonly cited for urban areas in the air quality community, while the zero-plane displacement value was found to be 35 m, the highest value reported in the literature. (C) 2003 Elsevier Science Ltd. All rights reserved.
URI: http://hdl.handle.net/11455/45495
ISSN: 1352-2310
文章連結: http://dx.doi.org/10.1016/s1352-2310(03)00032-3
顯示於類別:環境工程學系所

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