气候变化领域集成服务门户(CCPortal): Regional changes in extreme heat events in China under stabilized 1.5 °C and 2.0 °C global warming

CCPortal

DOI	10.1016/j.accre.2020.08.003
	Regional changes in extreme heat events in China under stabilized 1.5 °C and 2.0 °C global warming
	ZHANG G.-W.; ZENG G.; Iyakaremye V.; YOU Q.-L.
发表日期	2020
ISSN	1674-9278
起始页码	198
结束页码	209
卷号	11 期号:3
英文摘要	Extreme heat events (EHEs) have a significant impact on the social economy and human health. China is a country with a large population and diverse terrain, and it is necessary to project future extreme heat changes in the sub-regions. This study used a specially designed dataset, the Community Earth System Model (CESM) simulations, namely CESM low-warming, to investigate the EHEs in China under 1.5 °C and 2.0 °C global warming. The results indicate that the regional mean warming over China will exceed the global average, about 1.63 °C and 2.24 °C in 1.5 °C and 2.0 °C warmer futures. Compared to the present-day (1976–2005), the frequency and duration of the EHEs in South China are projected to increase the most among the sub-regions. For example, the frequency of EHEs in South China at 1.5 °C and 2.0 °C warming will exceed 3 and 3.5 times the present-day level. However, when global warming rises from 1.5 °C to 2.0 °C, the increased impacts relative to the 1.5 °C warming level will be the lowest in South China (less than 40%), and the highest increased impacts are projected to appear in Northeast China (53%–84%) and Northwest China (53%–107%). The main reason for this situation is that compared with the 1.5 °C scenario, the upper zonal westerly in northern China weakens and the continental high pressure enhances under the 2.0 °C scenario. Therefore, limiting global warming at 1.5 °C instead of 2.0 °C is beneficial for eliminating extreme heat events, especially for Northeast China and Northwest China. © 2020 National Climate Center (China Meteorological Administration)
语种	英语
来源期刊	Advances in Climate Change Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168724
作者单位	Key Laboratory of Meteorological Disaster of Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China; Department of Atmospheric and Oceanic Sciences, Institute of Atmospheric Sciences, Fudan University, Shanghai, 200433, China
推荐引用方式 GB/T 7714	ZHANG G.-W.,ZENG G.,Iyakaremye V.,et al. Regional changes in extreme heat events in China under stabilized 1.5 °C and 2.0 °C global warming[J],2020,11(3).
APA	ZHANG G.-W.,ZENG G.,Iyakaremye V.,&YOU Q.-L..(2020).Regional changes in extreme heat events in China under stabilized 1.5 °C and 2.0 °C global warming.Advances in Climate Change Research,11(3).
MLA	ZHANG G.-W.,et al."Regional changes in extreme heat events in China under stabilized 1.5 °C and 2.0 °C global warming".Advances in Climate Change Research 11.3(2020).