Spatiotemporal variability in dust observed over the Sinkiang and Inner Mongolia regions of Northern China

	Spatiotemporal variability in dust observed over the Sinkiang and Inner Mongolia regions of Northern China
	Xu, Hui 1; Cheng, Tianhai 1; Gu, Xingfa 1; Yu, Tao 1; Xie, Donghai 1; Zheng, Fengjie 1
刊名	ATMOSPHERIC POLLUTION RESEARCH
	2015
卷号	6 期号:4 页码:7597-7614
关键词	Airborne dust spatiotemporal variability Northern China AI and AOD
通讯作者	Cheng, TH (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China.
英文摘要	This study presents a detailed analysis of the spatiotemporal variability in dust observed over Sinkiang and Inner Mongolia in Northern China from 2005 to 2008. The relationships between airborne dust (observed by OMI-AI and MODIS-AOD), the normalized difference vegetation index (NDVI), monthly total precipitation (MTP) and surface wind speed (SWS) are investigated. The results show that the spatial distribution of airborne dust distinctly decreases from west to east across Northern China; this pattern is opposite to that of the NDVI and MTP. Both Sinkiang and Inner Mongolia experience high amounts of airborne dust in spring, with the highest values in April. The two regions also had different dust variabilities. In Sinkiang, three major dust regions were identified, with airborne dust mainly distributed in regions with NDVI values between 0 and 0.1, SWS values between 2 and 5 m/s, and a MTP of less than 5 mm. In addition, the temporal variation in airborne dust exhibits both positive and negative correlations with the NDVI, MTP and SWS. However, over Inner Mongolia, five high-dust regions were confirmed, with airborne dust generally distributed in the areas with NDVI values between 0 and 0.4, SWS values between 3 and 6 m/s, and a MTP of less than 10 mm. The time series of airborne dust is negatively correlated with the NDVI and MTP but strongly and positively correlated with the SWS. In addition, the temporal pattern of the AOD in Sinkiang is essentially controlled by dust activity, whereas it may be influenced by anthropogenic emissions in Inner Mongolia. Overall, the spatiotemporal variabilities in dust over Sinkiang and Inner Mongolia are not identical, although both regions are important sources of dust in East Asia.
研究领域[WOS]	Environmental Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000359951500003
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38159]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Xu, Hui 2.Cheng, Tianhai 3.Gu, Xingfa 4.Yu, Tao 5.Xie, Donghai 6.Zheng, Fengjie] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hui,Cheng, Tianhai,Gu, Xingfa,et al. Spatiotemporal variability in dust observed over the Sinkiang and Inner Mongolia regions of Northern China[J]. ATMOSPHERIC POLLUTION RESEARCH,2015,6(4):7597-7614.
APA	Xu, Hui,Cheng, Tianhai,Gu, Xingfa,Yu, Tao,Xie, Donghai,&Zheng, Fengjie.(2015).Spatiotemporal variability in dust observed over the Sinkiang and Inner Mongolia regions of Northern China.ATMOSPHERIC POLLUTION RESEARCH,6(4),7597-7614.
MLA	Xu, Hui,et al."Spatiotemporal variability in dust observed over the Sinkiang and Inner Mongolia regions of Northern China".ATMOSPHERIC POLLUTION RESEARCH 6.4(2015):7597-7614.