干旱区生态环境知识资源中心(Arid): Spatio-temporal changes of AOD in Xinjiang of China from 2000 to 2019: Which factor is more influential, natural factor or human factor?

Arid

DOI	10.1371/journal.pone.0253942
	Spatio-temporal changes of AOD in Xinjiang of China from 2000 to 2019: Which factor is more influential, natural factor or human factor?
	Li, Jinglong; He, Qing; Ge, Xiangyu; Abbas, Alim; Jin, Lili
通讯作者	He, Q (corresponding author), Xinjiang Univ, Coll Resources & Environm Sci, Urumqi, Xinjiang, Peoples R China. ; He, Q (corresponding author), China Meteorol Adm, Inst Desert Meteorol, Urumqi, Xinjiang, Peoples R China.
来源期刊	PLOS ONE
ISSN	1932-6203
出版年	2021
卷号	16 期号:8
英文摘要	Aerosol optical depth (AOD), which represents the optical attenuation, poses a major threat to the production activity, air quality, human health and regional sustainable development of arid and semi-arid areas. To some degree, AOD shows areal air pollution level and possesses obvious spatio-temporal characteristics. However, long-time sequences and detailed AOD information can not be provided due to currently limited monitoring technology. In this paper, a daily AOD product, MODIS-based Multi-angle Implementation of Atmospheric Correction (MAIAC), is deployed to analyze the spatio-temporal characteristics in Xinjiang Uygur Autonomous Region from 2000 to 2019. In addition, the importance of influencing factors for AOD is calculated through Random Forest (RF) Model and the propagation trajectories of pollutants are simulated through Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) Model. Spatio distribution of AOD presents a tendency that AOD value in northern Xinjiang is low while the value in southern Xinjiang is high. Regions with high AOD values are mainly concentrated in Tarim Basin. AOD in southern Xinjiang is the highest, followed by that in eastern Xinjiang and AOD value in northern Xinjiang is the lowest. Seasonal variation of AOD is significant: Spring (0.309) > summer (0.200) > autumn (0.161) > winter (0.158). Average AOD value in Xinjiang is 0.196. AOD appears wavy from 2000 to 2014 with its low inflection point (0.157) appearing in 2005, and then increases, reaching its peak in 2014 (0.223). The obvious downward tendency after 2014 shows that the use of coal to natural gas (NG) conversion project improves the conditions of local environment. According to RF Model, NG contributes most to AOD. HYSPLIT Model reveals that aerosol in southern Xinjiang is related to the short-distant carriage of dust aerosol from the Taklimakan Desert. Aerosol there can affect Inner Mongolia through long-distant transport. Blocked by the Tianshan Mountains, fine dust particles can not cross the Tianshan Mountains to become a factor contributing to AOD in northern Xinjiang.
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000686373300071
WOS关键词	AEROSOL OPTICAL DEPTH ; HYSPLIT MODEL ; DUST ; MODIS ; RETRIEVAL ; VARIABILITY ; TRANSPORT ; POLLUTION ; ALGORITHM ; EPISODES
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364387
作者单位	[Li, Jinglong; He, Qing; Ge, Xiangyu; Abbas, Alim] Xinjiang Univ, Coll Resources & Environm Sci, Urumqi, Xinjiang, Peoples R China; [Li, Jinglong; He, Qing; Abbas, Alim] China Meteorol Adm, Inst Desert Meteorol, Urumqi, Xinjiang, Peoples R China; [Ge, Xiangyu] Xinjiang Univ, Key Lab Oasis Ecol, Urumqi, Xinjiang, Peoples R China; [Ge, Xiangyu] Xinjiang Univ, Coll Resources & Environm Sci, Key Lab Smart City & Environm Modelling Higher Ed, Urumqi, Xinjiang, Peoples R China; [Jin, Lili] Yunnan Univ, Dept Atmospher Sci, Kunming, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Li, Jinglong,He, Qing,Ge, Xiangyu,et al. Spatio-temporal changes of AOD in Xinjiang of China from 2000 to 2019: Which factor is more influential, natural factor or human factor?[J]. 新疆大学,2021,16(8).
APA	Li, Jinglong,He, Qing,Ge, Xiangyu,Abbas, Alim,&Jin, Lili.(2021).Spatio-temporal changes of AOD in Xinjiang of China from 2000 to 2019: Which factor is more influential, natural factor or human factor?.PLOS ONE,16(8).
MLA	Li, Jinglong,et al."Spatio-temporal changes of AOD in Xinjiang of China from 2000 to 2019: Which factor is more influential, natural factor or human factor?".PLOS ONE 16.8(2021).