Comparison of upwind land use and roughness length measured in the urban boundary layer

被引:26
作者
Rooney, GG
机构
[1] Met Office Field Site, Cardington Airfield, Shortstown
关键词
displacement height; roughness length; similarity; source-area modelling; urban micrometeorology;
D O I
10.1023/A:1019265913011
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
The results of wind measurements taken in two studies at an urban site in Birmingham (UK) are presented. Displacement heights and roughness lengths are calculated that compare well with previous measurements in the urban canopy. Dimensionless windshear and vertical-velocity standard deviation are also shown to obey Monin-Obukhov similarity theory. The mean roughness lengths measured at the highest measuring position (45 m) increase with the fraction of upwind urban cover calculated using a source-area model.
引用
收藏
页码:469 / 486
页数:18
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