Review of recent studies of the climatic effects of urbanization in China

This paper summarizes recent studies on the effects of urbanization on climate in China. The effects of urbanization on local climate trends have been re-estimated based on homogenized observations and using improved methods. In this respect, the effect of urbanization on the observed warming trend...

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Bibliographic Details
Published in:Advances in climate change research 2016-09, Vol.7 (3), p.154-168
Main Authors: Yan, Zhong-Wei, Wang, Jun, Xia, Jiang-Jiang, Feng, Jin-Ming
Format: Article
Language:English
Subjects:
adaptation
change
climate
Climate adaptation
effect
High-resolution
High-resolution modeling
Homogenized
Homogenized observation series
modeling
observation
Regional
Regional climate change
series
Urbanization
Urbanization effect
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Summary:This paper summarizes recent studies on the effects of urbanization on climate in China. The effects of urbanization on local climate trends have been re-estimated based on homogenized observations and using improved methods. In this respect, the effect of urbanization on the observed warming trend of local surface air temperatures during the last few decades is determined as being about 20% at urban stations such as the Beijing Observatory. The large-scale weakening trend of wind speed is also about 20% more prominent at the city center than its surroundings. The effect of urbanization on precipitation is not profound, but results of high-resolution regional climate modeling suggest that this effect may depend on the urban extent. Although the urban heat island (UHI) should favor local atmospheric convection and hence precipitation, the increasingly extending urban land-use may reduce precipitation over the urban cluster in North China. It is found that urbanization can play a more notable role in extreme events than usual weather. High-resolution simulations show a positive feedback between the UHI and the super-heat wave in Shanghai during JulyeAugust 2013. Relevant studies dealing with urban climate adaptation are discussed in relation to recent findings.
ISSN:1674-9278
1674-9278
DOI:10.1016/j.accre.2016.09.003