干旱区生态环境知识资源中心(Arid): Aerosol optical depth (AOD): spatial and temporal variations and association with meteorological covariates in Taklimakan desert, China

Arid

DOI	10.7717/peerj.10542
	Aerosol optical depth (AOD): spatial and temporal variations and association with meteorological covariates in Taklimakan desert, China
	Li, Jinglong; Ge, Xiangyu; He, Qing; Abbas, Alim
通讯作者	He, Q (corresponding author), Xinjiang Univ, Coll Resources & Environm Sci, Urumqi, Peoples R China. ; He, Q (corresponding author), China Meteorol Adm, Inst Desert Meteorol, Urumqi, Peoples R China.
来源期刊	PEERJ
ISSN	2167-8359
出版年	2021
卷号	9
英文摘要	Aerosol optical depth (AOD) is a key parameter that reflects aerosol characteristics. However, research on the AOD of dust aerosols and various environmental variables is scarce. Therefore, we conducted in-depth studies on the distributions and variations of AOD in the Taklimakan Desert and its margins, China. We examined the correlation characteristics between AOD and meteorological factors combined with satellite remote sensing detection methods using MCD19A2-MODIS AOD products (from 2000, 2005, 2010, and 2015), MOD13Q1-MODIS normalized difference vegetation index products, and meteorological data. We analyzed the temporal and spatial distributions of AOD, periodic change trends, and important impacts of meteorological factors on AOD in the Taklimakan Desert and its margins. To explore the relationships between desert aerosols and meteorological factors, a random forest model was used along with environmental variables to predict AOD and rank factor contributions. Results indicated that the monthly average AOD exhibited a clear unimodal curve that reached its maximum in April. The AOD values followed the order spring (0.28) > summer (0.27) > autumn (0.18) > winter (0.17). This seasonality is clear and can be related to the frequent sandstorms occurring in spring and early summer. Interannual AOD showed a gradually increasing trend to 2010 then large changes to 2015. AOD tends to increase from south to north. Based on the general trend, the maximum value of AOD is more dispersed and its low-value area is always stable. The climatic index that has the most significant effect on AOD is relative humidity.
英文关键词	Aerosol optical depth (AOD) Dust aerosol Spatiotemporal distribution Impact factors
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000605105300005
WOS关键词	EAST-ASIA ; DUST ; MODIS ; VARIABILITY ; RETRIEVAL ; BASIN ; CITY
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/2XILL650/348089
作者单位	[Li, Jinglong; Ge, Xiangyu; He, Qing; Abbas, Alim] Xinjiang Univ, Coll Resources & Environm Sci, Urumqi, Peoples R China; [Li, Jinglong; He, Qing; Abbas, Alim] China Meteorol Adm, Inst Desert Meteorol, Urumqi, Peoples R China; [Ge, Xiangyu] Xinjiang Univ, Key Lab Oasis Ecol, Urumqi, Peoples R China; [Ge, Xiangyu] Xinjiang Univ, Coll Resources & Environm Sci, Key Lab Smart City & Environm Modelling Higher Ed, Urumqi, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Li, Jinglong,Ge, Xiangyu,He, Qing,et al. Aerosol optical depth (AOD): spatial and temporal variations and association with meteorological covariates in Taklimakan desert, China[J]. 新疆大学,2021,9.
APA	Li, Jinglong,Ge, Xiangyu,He, Qing,&Abbas, Alim.(2021).Aerosol optical depth (AOD): spatial and temporal variations and association with meteorological covariates in Taklimakan desert, China.PEERJ,9.
MLA	Li, Jinglong,et al."Aerosol optical depth (AOD): spatial and temporal variations and association with meteorological covariates in Taklimakan desert, China".PEERJ 9(2021).