干旱区生态环境知识资源中心(Arid): Assessment of dominating aerosol properties and their long-term trend in the Pan-Third Pole region: A study with 10-year multi-sensor measurements

Arid

DOI	10.1016/j.atmosenv.2020.117738
	Assessment of dominating aerosol properties and their long-term trend in the Pan-Third Pole region: A study with 10-year multi-sensor measurements
	Wang, Tianhe; Chen, Yixuan; Gan, Zewen; Han, Ying; Li, Jiming; Huang, Jianping
通讯作者	Huang, JP
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2020
卷号	239
英文摘要	The Pan-Third Pole (PTP), stretching from Eastern Asia to Middle-central Europe, has experienced unprecedented accelerated warming and even retreat of glaciers. Absorbing aerosols reduce snow and ice albedo and radiative forcing, consequently enhancing a great melting of snow cover and ice sheet in the PTP. Employing the 10-year (2007-2016) space-based active and passive measurements, this study investigated the distribution, optical properties and decadal trends for dominating aerosols at a seasonal scale in the PTP divided into six subregions. Results showed that the sub-regions of PTP were mainly dominated by dust, polluted dust and elevated smoke. The Taklimakan Desert (TD) and the Iranian Plateau (IP) were dominated by mineral dust, accounting for 96% and 86% of the total aerosol extinction while the Central Europe (CE), Indo-China (IC) and Anatolia Plateau (AP) were dominated by the mixture of the dominating aerosol types. The mean aerosol extinction coefficient (MAEC) showed an obvious variability depending on the sub-regions and a tendency of decreasing with an increase in the topographic height. The strongest extinction layer (>0.1 km(-1)) mainly occurred below 4 km and the weak extinction layers (>0.001 km(-1)) were mainly distributed between 5 km and 8 km, indicating pronounced vertical transport in the region. The decadal trends of columnar aerosol optical depth (AOD) showed a relation with the contributions of the dominating aerosol types. For example, significant upward or downward trends of total aerosol loading in the IC region were driven by elevated smoke while the AOD trends of total aerosol loading for the CE, the AP and the IP were driven by the dominating aerosol types. The Tibetan Plateau (TP), the cleanest region in the PTP, has been regularly exposed to polluted air masses with significant amounts of absorbing aerosols. Therefore, understanding the dominating aerosol types, properties and decadal trends in the PTP region will contribute considerably to assessing their effects on radiative forcing, climate change, and even snowmelt and glacier retreat.
英文关键词	The Pan-Third Pole Dominating aerosol Long-term trend Active/passive satellite
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000584473300001
WOS关键词	TIBETAN PLATEAU ; OPTICAL DEPTH ; MINERAL DUST ; BLACK CARBON ; PARTICULATE MATTER ; AERONET MEASUREMENTS ; INJECTION HEIGHTS ; SATELLITE DATA ; RAMAN LIDAR ; DATA SETS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
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/2XILL650/327240
作者单位	[Wang, Tianhe; Chen, Yixuan; Gan, Zewen; Han, Ying; Li, Jiming; Huang, Jianping] Lanzhou Univ, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R China; [Chen, Yixuan] Guizhou Meteorol Bur, Guiyang 550002, Peoples R China
推荐引用方式 GB/T 7714	Wang, Tianhe,Chen, Yixuan,Gan, Zewen,et al. Assessment of dominating aerosol properties and their long-term trend in the Pan-Third Pole region: A study with 10-year multi-sensor measurements[J]. 兰州大学,2020,239.
APA	Wang, Tianhe,Chen, Yixuan,Gan, Zewen,Han, Ying,Li, Jiming,&Huang, Jianping.(2020).Assessment of dominating aerosol properties and their long-term trend in the Pan-Third Pole region: A study with 10-year multi-sensor measurements.ATMOSPHERIC ENVIRONMENT,239.
MLA	Wang, Tianhe,et al."Assessment of dominating aerosol properties and their long-term trend in the Pan-Third Pole region: A study with 10-year multi-sensor measurements".ATMOSPHERIC ENVIRONMENT 239(2020).