干旱区生态环境知识资源中心(Arid): Spatiotemporal variations and driving factors of dust storm events in northern China based on high-temporal-resolution analysis of meteorological data (1960-2007)

Arid

DOI	10.1016/j.envpol.2020.114084
	Spatiotemporal variations and driving factors of dust storm events in northern China based on high-temporal-resolution analysis of meteorological data (1960-2007)
	Xu, Chuanqi; Guan, Qingyu; Lin, Jinkuo; Luo, Haiping; Yang, Liqin; Tan, Zhe; Wang, Qingzheng; Wang, Ning; Tian, Jing
通讯作者	Guan, Qingyu
来源期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
EISSN	1873-6424
出版年	2020
卷号	260
英文摘要	Northern China is a significant source of dust source in Central Asia. Thus, high-resolution analysis of dust storms and comparison of dust sources in different regions of northern China are important to clarify the formation mechanism of East Asian dust storms and predict or even prevent such storms. Here, we analyzed spatiotemporal trends in dust storms that occurred in three main dust source regions during 1960-2007: Taklimakan Desert (western region [WR]), Badain Jaran and Tengger Deserts (middle region [MR]), and Otindag Sandy Land (eastern region [ER]). We analyzed daily dust storm frequency (DSF) at the 10-day scale (first [FTDM], middle [MTDM], and last [LTDM] 10 days of a month), and investigated the association of dust storm occurrences with meteorological factors. The 10-day DSF was greatest in the FTDM (accounting for 77.14% of monthly occurrences) in the WR, MTDM (45.85%) in the MR, and LTDM (72.12%) in the ER, showing a clear trend of movement from the WR to the ER. Temporal analysis of DSF revealed trend changes over time at annual and 10-day scales, with mutation points at 1985 and 2000. We applied single-factor and multiple-factor analyses to explore the driving mechanisms of DSF at the 10-day scale. Among single factors, a low wind-speed threshold, high solar radiation, and high evaporation were correlated with a high DSF, effectively explaining the variations in DSF at the 10day scale; however, temperature, relative humidity, and precipitation poorly explained variations in DSF. Similarly, multiple-factor analysis using a classification and regression tree revealed that maximum wind speed was a major influencing factor of dust storm occurrence at the 10-day scale, followed by relative humidity, evaporation, and solar radiation; temperature and precipitation had weak influences. These findings help clarify the mechanisms of dust storm occurrence in East Asia. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Dust storm Meteorological factor Spatiotemporal difference Wind speed
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000528537600031
WOS关键词	EASTERN AUSTRALIA ; CLIMATE CHANGES ; SOIL-MOISTURE ; SURFACE WIND ; NOAA NDVI ; FREQUENCY ; IMPACT ; EMISSION ; LAND ; MONGOLIA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319044
作者单位	Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Xu, Chuanqi,Guan, Qingyu,Lin, Jinkuo,et al. Spatiotemporal variations and driving factors of dust storm events in northern China based on high-temporal-resolution analysis of meteorological data (1960-2007)[J]. 兰州大学,2020,260.
APA	Xu, Chuanqi.,Guan, Qingyu.,Lin, Jinkuo.,Luo, Haiping.,Yang, Liqin.,...&Tian, Jing.(2020).Spatiotemporal variations and driving factors of dust storm events in northern China based on high-temporal-resolution analysis of meteorological data (1960-2007).ENVIRONMENTAL POLLUTION,260.
MLA	Xu, Chuanqi,et al."Spatiotemporal variations and driving factors of dust storm events in northern China based on high-temporal-resolution analysis of meteorological data (1960-2007)".ENVIRONMENTAL POLLUTION 260(2020).