干旱区生态环境知识资源中心(Arid): Indicators for evaluating trends of air humidification in arid regions under circumstance of climate change: Relative humidity (RH) vs. Actual water vapour pressure (e(a))

Arid

DOI	10.1016/j.ecolind.2020.107043
	Indicators for evaluating trends of air humidification in arid regions under circumstance of climate change: Relative humidity (RH) vs. Actual water vapour pressure (e(a))
	Wei, Qi; Xu, Junzeng; Liao, Linxian; Yu, Yanmei; Liu, Weixuan; Zhou, Jing; Ding, Yimin
通讯作者	Xu, JZ (corresponding author), Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China.
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2021
卷号	121
英文摘要	The trend of wetting or drying is an important metric of regional and global climate change. Based on daily meteorological data during 1951-2018 from 10 stations in arid regions of North China, the performances of two indicators, relative humidity (RH) and actual water vapour pressure (e(a)), in evaluating the trends of air humidification are investigated. Results show that annual RH decreases by 0-0.10% yr(-1) during the past decades in almost all (90%) stations, whereas annual e a presents increasing trends in 40% of stations and decreasing trends in the other 60% stations. Therefore, contrasting results are observed in the trends of air humidity reflected RH and e(a). Specifically, stations getting significantly drying as indicated by RH, it is tend to getting less drying or even wetting as indicated by e(a). These results suggest that it tend to give a misleading conclusion with the trends of RH as indicator in evaluating the trends of regional or global wetting or drying, due to the reduction in RH caused by the accompanying temperature rising under global warming. The other indicator e(a) is more consistent with the precipitation changes, and suitable for trending analyses of air humidification under such circumstance. Further researches should be done in a larger scale arid region and in different seasons, to investigate the differences in the trends of air humidification indicated by RH and e(a), and discuss the response of the changes of wetting or drying to the varied meteorological factors.
英文关键词	Relative humidity Actual water vapour pressure Climate change Precipitation Wetting or drying
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:000604863700006
WOS关键词	SUMMER RAINFALL ; CHINA ; NORTHEAST ; MONSOON ; DROUGHT ; TESTS
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347820
作者单位	[Wei, Qi; Xu, Junzeng; Liao, Linxian; Liu, Weixuan; Zhou, Jing] Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China; [Xu, Junzeng; Ding, Yimin] Hohai Univ, State Key Lab HydrologyWater Resources & Hydraul, Nanjing 210098, Peoples R China; [Yu, Yanmei] Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing 210098, Peoples R China
推荐引用方式 GB/T 7714	Wei, Qi,Xu, Junzeng,Liao, Linxian,et al. Indicators for evaluating trends of air humidification in arid regions under circumstance of climate change: Relative humidity (RH) vs. Actual water vapour pressure (e(a))[J]. 河海大学,2021,121.
APA	Wei, Qi.,Xu, Junzeng.,Liao, Linxian.,Yu, Yanmei.,Liu, Weixuan.,...&Ding, Yimin.(2021).Indicators for evaluating trends of air humidification in arid regions under circumstance of climate change: Relative humidity (RH) vs. Actual water vapour pressure (e(a)).ECOLOGICAL INDICATORS,121.
MLA	Wei, Qi,et al."Indicators for evaluating trends of air humidification in arid regions under circumstance of climate change: Relative humidity (RH) vs. Actual water vapour pressure (e(a))".ECOLOGICAL INDICATORS 121(2021).