干旱区生态环境知识资源中心(Arid): Globally Increasing Atmospheric Aridity Over the 21st Century

Arid

DOI	10.1029/2022EF003019
	Globally Increasing Atmospheric Aridity Over the 21st Century
	Fang, Zhongxiang; Zhang, Wenmin; Brandt, Martin; Abdi, Abdulhakim M.; Fensholt, Rasmus
通讯作者	Zhang, WM
来源期刊	EARTHS FUTURE
EISSN	2328-4277
出版年	2022
卷号	10 期号:10
英文摘要	Vapor pressure deficit (VPD) is of great importance to control the land-atmosphere exchange of water and CO2. Here we use in situ observations to assess the performance of monthly VPD calculated from state-of-the-art data sets including CRU, ERA5, and Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA2). We investigate trends in VPD at global scale and for different climatic zones for 1981-2020 and future trends (2021-2100) from Coupled Model Inter-comparison Project phase 6 (CMIP6) outputs. The results show that monthly VPD estimated from CRU, ERA5, and MERRA2 correlated well against in situ estimates from 15,531 World Meteorological Organization stations, with R-2 ranging between 0.92 and 0.96. Moreover, robust correlations were also found across in situ stations and when analyzing different months separately. During 1981-2020, VPD increased in all climatic zones, with the strongest increase in the arid zone, followed by tropical, temperate, cold and polar zones. CMIP6 simulations show a continuously increasing trend in VPD (0.028 hPa year(-1)), with the largest increase in the arid zone (0.063 hPa year(-1)). The magnitudes of trends are found to increase following the magnitude of CO2 increases in the future emission scenarios. We highlight that atmospheric aridification will continue under global warming, which may pose an increasing threat to terrestrial ecosystems and particularly dryland agricultural systems.
英文关键词	vapor pressure deficit atmospheric aridity future climate remote sensing dryland agriculture
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000873398700001
WOS关键词	MODEL
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392276
推荐引用方式 GB/T 7714	Fang, Zhongxiang,Zhang, Wenmin,Brandt, Martin,et al. Globally Increasing Atmospheric Aridity Over the 21st Century[J],2022,10(10).
APA	Fang, Zhongxiang,Zhang, Wenmin,Brandt, Martin,Abdi, Abdulhakim M.,&Fensholt, Rasmus.(2022).Globally Increasing Atmospheric Aridity Over the 21st Century.EARTHS FUTURE,10(10).
MLA	Fang, Zhongxiang,et al."Globally Increasing Atmospheric Aridity Over the 21st Century".EARTHS FUTURE 10.10(2022).