干旱区生态环境知识资源中心(Arid): The changing extreme values of summer relative humidity in the Tarim Basin in northwestern China

Arid

DOI	10.1007/s00382-021-06110-2
	The changing extreme values of summer relative humidity in the Tarim Basin in northwestern China
	Nian, Da; Linz, Marianna; Mooring, Todd A.; Fu, Zuntao
通讯作者	Nian, D (corresponding author)，Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China. ; Nian, D (corresponding author)，Potsdam Inst Climate Impact Res, D-14412 Potsdam, Germany.
来源期刊	CLIMATE DYNAMICS
ISSN	0930-7575
EISSN	1432-0894
出版年	2022-01
英文摘要	Relative Humidity (RH) in the arid region of the Tarim Basin is crucial for many reasons. The Tarim Basin has experienced a tendency to become wetter in recent decades, and the RH there also shows an increase over the past decade. However, there has been little examination of these RH changes and especially the changes to the extremes. This study investigates the changes in extreme values and the probability density function (PDF) of summer RH using quantile regression during 2006-2018 to understand the possible reasons for the increase in the summer RH anomaly. We find that extremely high values of RH show a consistent significant increase, while extremely low values have no regionally consistent tendency. The overall average value of RH in the Tarim Basin becomes higher, contributed by the upper half of the PDF. To explore the physical mechanism for these changes, we examine the corresponding regional meteorological anomaly patterns. The patterns indicate that the anomalous southwesterly airflow at 500hPa brings ample moisture into the basin and the ground in the middle of the basin significantly cools down when an extreme wet event occurs, promoting the occurrence of the extreme high RH. In this process, the contributions of water vapor transport and temperature are of equal significance though with different relative timing. These corresponding regional meteorological patterns occur more often in the most recent decade, which coincides with the recent increase in RH extremes in this region.
英文关键词	Relative humidity Extreme wetness Quantile regression Regional meteorological anomaly patterns Tarim Basin Asia
类型	Article ; Early Access
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000745451300001
WOS关键词	CLIMATE-CHANGE ; ARID REGION ; QUANTILE REGRESSION ; AIR-TEMPERATURE ; SOIL-MOISTURE ; RIVER-BASIN ; TREND ; PRECIPITATION ; DROUGHT ; DESERT
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377106
作者单位	[Nian, Da; Fu, Zuntao] Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China; [Nian, Da] Potsdam Inst Climate Impact Res, D-14412 Potsdam, Germany; [Linz, Marianna] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA; [Linz, Marianna; Mooring, Todd A.] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA
推荐引用方式 GB/T 7714	Nian, Da,Linz, Marianna,Mooring, Todd A.,et al. The changing extreme values of summer relative humidity in the Tarim Basin in northwestern China[J],2022.
APA	Nian, Da,Linz, Marianna,Mooring, Todd A.,&Fu, Zuntao.(2022).The changing extreme values of summer relative humidity in the Tarim Basin in northwestern China.CLIMATE DYNAMICS.
MLA	Nian, Da,et al."The changing extreme values of summer relative humidity in the Tarim Basin in northwestern China".CLIMATE DYNAMICS (2022).