干旱区生态环境知识资源中心(Arid): Changes in the moisture contribution over global arid regions

Arid

DOI	10.1007/s00382-022-06600-x
	Changes in the moisture contribution over global arid regions
	Wang, Chenghai; Li, Jiamin; Zhang, Feimin; Yang, Kai
通讯作者	Wang, CH
来源期刊	CLIMATE DYNAMICS
ISSN	0930-7575
EISSN	1432-0894
出版年	2023
卷号	61 期号:1-2 页码:543-557
英文摘要	Arid regions have deficient precipitation, understanding the sources and transportation of moisture for precipitation are crucial. This study examined the major moisture contributions for global six arid regions, which are classified as inland arid region (China-Mongolia) and coastal arid regions (North Africa, West Asia, West United States, South Africa, South Africa and Australia). Results indicated that, the moisture for precipitation in coastal arid regions originates mostly from the ocean, which is influenced by the general circulation, particularly by the sinking branch of the Hadley cell. For inland arid region (China-Mongolia), the surrounding mountains supply more than 150 mm of moisture in wet months due to the ablation of glacial and snow melting. In arid regions, the moisture for precipitation is mostly contributed by advection of large-scale circulation, while the contribution of local moisture recycling is secondary. The moisture available for precipitation in wet and dry months depends on the general circulation. Moisture transportation in wet months is 10 times more than that in dry months, and the moisture sources differ greatly in wet and dry months. In both wet and dry months, the external moisture transported into arid regions has significantly decreasing trend during the period 1990-2019. The decreasing trend of precipitation recycling ratio in arid regions are greater than that in the globe. The decreased precipitation and moisture in arid regions suggest a potential drying trend.
英文关键词	Moisture source Precipitation Arid regions Water accounting model
类型	Article
语种	英语
开放获取类型	Green Submitted, hybrid
收录类别	SCI-E
WOS记录号	WOS:000888717500002
WOS关键词	HYDROLOGICAL CYCLE ; WATER CYCLE ; LAND MEMORY ; PART I ; PRECIPITATION ; CHINA ; PLATEAU ; RATES
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/2XILL650/395774
推荐引用方式 GB/T 7714	Wang, Chenghai,Li, Jiamin,Zhang, Feimin,et al. Changes in the moisture contribution over global arid regions[J],2023,61(1-2):543-557.
APA	Wang, Chenghai,Li, Jiamin,Zhang, Feimin,&Yang, Kai.(2023).Changes in the moisture contribution over global arid regions.CLIMATE DYNAMICS,61(1-2),543-557.
MLA	Wang, Chenghai,et al."Changes in the moisture contribution over global arid regions".CLIMATE DYNAMICS 61.1-2(2023):543-557.