北京市夏季城市强热岛边界层气象特征
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P423.7

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国家自然科学基金重点项目(40233030)资助


Meteorological Characteristics of Boundary-layer for Strong Urban Heat Island in Beijing Summer
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    摘要:

    近年来,北京市城市化发展迅速,城市气候特征也发生明显变化。应用中科院大气所325m铁塔的梯度观测资料,对发生在北京市的夏季强热岛天气的边界层气象特征进行了分析。结果表明:发生在夜间的北京市夏季强热岛,其边界层存在很强的逆温层结,并且逆温层较厚,低层风速较小,一般不超过2.0m/s;但白天,随着太阳短波辐射的加强,逆温结构很快被破坏,城市热岛强度也迅速减弱。

    Abstract:

    In recent years, the urbanization in Beijing developed rapidly, and the urban climate characteristics have changed obviously. The meteorological data from the Beijing 325 m tower have been used to study the meteorological characteristics of boundary-layer for strong urban heat island (UHI) in the summer of Beijing. The results show that when strong UHI appears, there is a strong inversion layer in the low atmosphere and the inversion top is very high, the wind near ground is very weak, with wind speed less than 2 m/s. In daytime, with the strong solar radiation, the inversion structure is destroyed soon, and the UHI intensity decreases rapidly.

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罗树如 刘熙明. 北京市夏季城市强热岛边界层气象特征[J]. 科学技术与工程, 2005, (10): 644-646651.
. Meteorological Characteristics of Boundary-layer for Strong Urban Heat Island in Beijing Summer[J]. Science Technology and Engineering,2005,(10):644-646651.

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