气候变化领域集成服务门户(CCPortal): WRF/UCM simulations of the impacts of urban expansion and future climate change on atmospheric thermal environment in a Chinese megacity

CCPortal

DOI	10.1007/s10584-021-03287-7
	WRF/UCM simulations of the impacts of urban expansion and future climate change on atmospheric thermal environment in a Chinese megacity
	Zhao, Yang; Zhong, Lei; Ma, Yaoming; Fu, Yunfei; Chen, Mingxing; Ma, Weiqiang; Zhao, Chun; Huang, Ziyu; Zhou, Keqi
通讯作者	Zhong, L (通讯作者)
发表日期	2021
ISSN	0165-0009
EISSN	1573-1480
卷号	169 期号:3-4
英文摘要	Urban expansion and climate change can considerably influence the regional thermal environment. In this study, the effects of changes in land cover type and vegetation coverage (referred to as LU for short), gridded anthropogenic heat (AH) emission and future climate change on atmospheric thermal environment in a Chinese megacity, Hefei, are investigated by Weather Research and Forecasting (WRF)/Urban Canopy Model (UCM) model. It is found that the increase of surface sensible heat in old urban areas is contributed by AH emission, while that in new urban areas is attributed to LU change. The LU change in new urban areas can lead to the decreased latent heat flux due to the reduction of vegetation coverage and the increase of impervious land surface. The contribution of LU change to the summer UHI intensity is about 0.76 degrees C, and AH emission to that is about 0.17 degrees C. The combined effects of LU change and AH emission in old urban areas are greater than those in new urban areas, leading to changes in daily mean 2-m air temperature, 2-m relative humidity (RH), and heat index in old (new) urban areas to be 1.08 degrees C (0.75 degrees C), - 5.93% (- 4.96%), and 2.77 degrees C (1.76 degrees C), respectively. At the end of the twenty-first century, the urban air temperature under RCP 4.5 (RCP 8.5) scenario is 0.7 degrees C (3 degrees C) higher than that at present.
关键词	RIVER DELTA REGION AIR-QUALITY HEAT-ISLAND ANTHROPOGENIC HEAT CANOPY MODEL SINGLE-LAYER LAND-COVER METEOROLOGY VEGETATION CITY
英文关键词	WRF/UCM modeling system; Urban expansion; Gridded anthropogenic heat; Climate change; Atmospheric thermal environment
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000734778800001
来源期刊	CLIMATIC CHANGE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260470
推荐引用方式 GB/T 7714	Zhao, Yang,Zhong, Lei,Ma, Yaoming,et al. WRF/UCM simulations of the impacts of urban expansion and future climate change on atmospheric thermal environment in a Chinese megacity[J]. 中国科学院青藏高原研究所,2021,169(3-4).
APA	Zhao, Yang.,Zhong, Lei.,Ma, Yaoming.,Fu, Yunfei.,Chen, Mingxing.,...&Zhou, Keqi.(2021).WRF/UCM simulations of the impacts of urban expansion and future climate change on atmospheric thermal environment in a Chinese megacity.CLIMATIC CHANGE,169(3-4).
MLA	Zhao, Yang,et al."WRF/UCM simulations of the impacts of urban expansion and future climate change on atmospheric thermal environment in a Chinese megacity".CLIMATIC CHANGE 169.3-4(2021).