干旱区生态环境知识资源中心(Arid): Long-term multi-source data analysis about the characteristics of aerosol optical properties and types over Australia

Arid

DOI	10.5194/acp-21-3803-2021
	Long-term multi-source data analysis about the characteristics of aerosol optical properties and types over Australia
	Yang, Xingchuan; Zhao, Chuanfeng; Yang, Yikun; Fan, Hao
通讯作者	Zhao, CF (corresponding author), Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China.
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
EISSN	1680-7324
出版年	2021
卷号	21 期号:5 页码:3803-3825
英文摘要	The spatiotemporal distributions of aerosol optical properties and major aerosol types, along with the vertical distribution of major aerosol types over Australia, are investigated based on multi-year Aerosol Robotic Network (AERONET) observations at nine sites, the Moderate Resolution Imaging Spectroradiometer (MODIS), Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2), Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP), and back-trajectory analysis from the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT). During the observation period from 2001-2020, the annual aerosol optical depth (AOD) at most sites showed increasing trends (0.002-0.029 yr(-1)), except for that at three sites, Canberra, Jabiru, and Lake Argyle, which showed decreasing trends (0.004 to 0.014 yr(-1)). In contrast, the annual Angstrom exponent (AE) showed decreasing tendencies at most sites (0.045 to 0.005 yr(-1)). The results showed strong seasonal variations in AOD, with high values in the austral spring and summer and relatively low values in the austral fall and winter, and weak seasonal variations in AE, with the highest mean values in the austral spring at most sites. Monthly average AOD increases from August to December or the following January and decreases during March-July. Spatially, the MODIS AOD showed obvious spatial heterogeneity, with high values appearing over the Australian tropical savanna regions, Lake Eyre Basin, and southeastern regions of Australia, while low values appeared over the arid regions in western Australia. MERRA-2 showed that carbonaceous aerosol over northern Australia, dust over central Australia, sulfate over densely populated northwestern and southeastern Australia, and sea salt over Australian coastal regions are the major types of atmospheric aerosols. The nine ground-based AERONET sites over Australia showed that the mixed type of aerosols (biomass burning and dust) is dominant in all seasons. Moreover, Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) showed that polluted dust is the dominant aerosol type detected at heights 0.5-5 km over the Australian continent during all seasons. The results suggested that Australian aerosol has similar source characteristics due to the regional transport over Australia, especially for biomass burning and dust aerosols. However, the dust-prone characteristic of aerosol is more prominent over central Australia, while the biomass-burning-prone characteristic of aerosol is more prominent in northern Australia.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000630061600002
WOS关键词	BIOMASS BURNING EMISSIONS ; AIR-QUALITY ; DUST ; TRENDS ; DISTRIBUTIONS ; POLLUTION ; AERONET ; DEPTH ; CLIMATOLOGY ; REANALYSIS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349620
作者单位	[Zhao, Chuanfeng] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China; Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xingchuan,Zhao, Chuanfeng,Yang, Yikun,et al. Long-term multi-source data analysis about the characteristics of aerosol optical properties and types over Australia[J]. 北京师范大学,2021,21(5):3803-3825.
APA	Yang, Xingchuan,Zhao, Chuanfeng,Yang, Yikun,&Fan, Hao.(2021).Long-term multi-source data analysis about the characteristics of aerosol optical properties and types over Australia.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(5),3803-3825.
MLA	Yang, Xingchuan,et al."Long-term multi-source data analysis about the characteristics of aerosol optical properties and types over Australia".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.5(2021):3803-3825.