气候变化领域集成服务门户(CCPortal): Changes in Mean and Extreme Temperature and Precipitation over the Arid Region of Northwestern China: Observation and Projection

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DOI	10.1007/s00376-016-6160-5
	Changes in Mean and Extreme Temperature and Precipitation over the Arid Region of Northwestern China: Observation and Projection
	Wang, Yujie; Zhou, Botao; Qin, Dahe; Wu, Jia; Gao, Rong; Song, Lianchun
发表日期	2017
ISSN	0256-1530
起始页码	289
结束页码	305
卷号	34 期号:3
英文摘要	This paper reports a comprehensive study on the observed and projected spatiotemporal changes in mean and extreme climate over the arid region of northwestern China, based on gridded observation data and CMIP5 simulations under the RCP4.5 and RCP8.5 scenarios. The observational results reveal an increase in annual mean temperature since 1961, largely attributable to the increase in minimum temperature. The annual mean precipitation also exhibits a significant increasing tendency. The precipitation amount in the most recent decade was greater than in any preceding decade since 1961. Seasonally, the greatest increase in temperature and precipitation appears in winter and in summer, respectively. Widespread significant changes in temperature-related extremes are consistent with warming, with decreases in cold extremes and increases in warm extremes. The warming of the coldest night is greater than that of the warmest day, and changes in cold and warm nights are more evident than for cold and warm days. Extreme precipitation and wet days exhibit an increasing trend, and the maximum number of consecutive dry days shows a tendency toward shorter duration. Multi-model ensemble mean projections indicate an overall continual increase in temperature and precipitation during the 21st century. Decreases in cold extremes, increases in warm extremes, intensification of extreme precipitation, increases in wet days, and decreases in consecutive dry days, are expected under both emissions scenarios, with larger changes corresponding to stronger radiative forcing.
英文关键词	climate change; arid region; observation; CMIP5 projection
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
来源期刊	ADVANCES IN ATMOSPHERIC SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158542
作者单位	Zhou, BT (corresponding author), China Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China.; Zhou, BT (corresponding author), Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China.
推荐引用方式 GB/T 7714	Wang, Yujie,Zhou, Botao,Qin, Dahe,et al. Changes in Mean and Extreme Temperature and Precipitation over the Arid Region of Northwestern China: Observation and Projection[J],2017,34(3).
APA	Wang, Yujie,Zhou, Botao,Qin, Dahe,Wu, Jia,Gao, Rong,&Song, Lianchun.(2017).Changes in Mean and Extreme Temperature and Precipitation over the Arid Region of Northwestern China: Observation and Projection.ADVANCES IN ATMOSPHERIC SCIENCES,34(3).
MLA	Wang, Yujie,et al."Changes in Mean and Extreme Temperature and Precipitation over the Arid Region of Northwestern China: Observation and Projection".ADVANCES IN ATMOSPHERIC SCIENCES 34.3(2017).