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首页> 外文会议>25th Conference on Agricultural and Forest Meteorology and 12th Joint Conference on the Applications of Air Pollution Meteorology with Aamp;WMA and Fourth Symposium on the Urban Environment May 20-24, 2002 Norfolk, Virginia >THE INFLUENCE OF VEGETATION ON THE URBAN CLIMATE
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THE INFLUENCE OF VEGETATION ON THE URBAN CLIMATE

机译：植被对城市气候的影响

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摘要

The ratio of urban fraction to vegetation fraction within a city influences the size of the urban heat and dry islands. The response to increasing the vegetation fraction decreases the urban heat island but this change is not linear. The degree of non-linearity depends upon the size of the urban area. The boundary layer structure is significantly altered by the presence of an urban fraction. The neutral temperature plume over the city is advected downwind as a lofted plume, with important implications for pollution dispersion. There is also a strong non-linearity in the boundary layer response to an urban fraction. Even small fractions of urban can produce neutral nocturnal boundary layers of a city.
机译：城市中城市部分与植被部分的比率影响着城市热岛和干旱岛的大小。对增加植被比例的响应减少了城市热岛，但这种变化不是线性的。非线性程度取决于市区的大小。边界层的结构由于城市部分的存在而发生了显着变化。整个城市的中性温度羽流向高处向下流动，称为高空羽流，对污染扩散具有重要意义。边界层对城市分数的响应也存在很强的非线性。即使是一小部分城市，也会产生城市中立的夜间边界层。

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