干旱区生态环境知识资源中心(Arid): Observed humidity trends in dry regions contradict climate models

Arid

DOI	10.1073/pnas.2302480120
	Observed humidity trends in dry regions contradict climate models
	Simpson, Isla R.; McKinnon, Karen A.; Kennedy, Daniel; Lawrence, David M.; Lehner, Flavio; Seager, Richard
通讯作者	Simpson, IR
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
EISSN	1091-6490
出版年	2024
卷号	121 期号:1
英文摘要	Arid and semi-arid regions of the world are particularly vulnerable to greenhouse gas- driven hydroclimate change. Climate models are our primary tool for projecting the future hydroclimate that society in these regions must adapt to, but here, we present a concerning discrepancy between observed and model-based historical hydroclimate trends. Over the arid/semi-arid regions of the world, the predominant signal in all model simulations is an increase in atmospheric water vapor, on average, over the last four decades, in association with the increased water vapor-holding capacity of a warmer atmosphere. In observations, this increase in atmospheric water vapor has not happened, suggesting that the availability of moisture to satisfy the increased atmospheric demand is lower in reality than in models in arid/semi-arid regions. This discrepancy is most clear in locations that are arid/semi-arid year round, but it is also apparent in more humid regions during the most arid months of the year. It indicates a major gap in our understanding and modeling capabilities which could have severe implications for hydroclimate projections, including fire hazard, moving forward.
英文关键词	climate change modeling humidity hydroclimate
类型	Article
语种	英语
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:001144694000004
WOS关键词	VAPOR-PRESSURE DEFICIT ; SURFACE HUMIDITY ; WARMING CONTRAST ; LAND ; TEMPERATURE ; SIMULATIONS ; MECHANISMS ; DATABASE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405225
推荐引用方式 GB/T 7714	Simpson, Isla R.,McKinnon, Karen A.,Kennedy, Daniel,et al. Observed humidity trends in dry regions contradict climate models[J],2024,121(1).
APA	Simpson, Isla R.,McKinnon, Karen A.,Kennedy, Daniel,Lawrence, David M.,Lehner, Flavio,&Seager, Richard.(2024).Observed humidity trends in dry regions contradict climate models.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,121(1).
MLA	Simpson, Isla R.,et al."Observed humidity trends in dry regions contradict climate models".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 121.1(2024).