气候变化领域集成服务门户(CCPortal): Unexpected large-scale atmospheric response to urbanization in East China

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DOI	10.1007/s00382-018-4380-3
	Unexpected large-scale atmospheric response to urbanization in East China
	Ma H.; Li T.; Jiang Z.; Gu P.
发表日期	2019
ISSN	0930-7575
起始页码	4293
结束页码	4303
卷号	52 期号:2020-07-08
英文摘要	Urban land use in East China has undergone considerable change since the 1990s. How such change affects both in situ and remote climate conditions is investigated through numerical modelling experiments with the Community Atmosphere Model Version 5.1. The results show that urbanization causes an increase in surface temperature due to reduced surface albedo but a decrease in specific humidity due to locally reduced surface evaporation. The change in specific humidity overwhelms the surface temperature change effect, leading to locally reduced precipitation. It is noted that urbanization causes changes in climate conditions not only locally but also remotely. Anomalous low-level divergence associated with the reduced precipitation in situ prevents the northward progression of the East Asian summer monsoon. As a result, the major monsoon rain band is strengthened and confined over South China and the tropical Asian monsoon zone along 12°–25°N. The increase of rainfall in the tropical zone, on one hand, induces the local overturning cell, leading to anomalous subsidence over mid-latitude Asia and the equatorial zone, and, on the other hand, perturbs the Subtropical Jet, generating a Rossby wave train disseminating along the Jet. Both of these processes cause anomalous dry and hot conditions over mid-latitude Asia. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	East Asian monsoon; Overturning cell; Precipitation; Remote response; Rossby wave train; Urbanization
语种	英语
scopus关键词	atmospheric dynamics; climate conditions; land use change; monsoon; numerical model; overturn; precipitation (climatology); Rossby wave; urbanization; China
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146411
作者单位	Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environmental Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, China; International Pacific Research Center and Department of Atmospheric Sciences, School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Ma H.,Li T.,Jiang Z.,et al. Unexpected large-scale atmospheric response to urbanization in East China[J],2019,52(2020-07-08).
APA	Ma H.,Li T.,Jiang Z.,&Gu P..(2019).Unexpected large-scale atmospheric response to urbanization in East China.Climate Dynamics,52(2020-07-08).
MLA	Ma H.,et al."Unexpected large-scale atmospheric response to urbanization in East China".Climate Dynamics 52.2020-07-08(2019).