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DOI	10.5194/acp-15-12065-2015
	The regional distribution characteristics of aerosol optical depth over the Tibetan Plateau
	Xu, C.; Ma, Y. M.; You, C.; Zhu, Z. K.
通讯作者	Ma, YM (通讯作者)
发表日期	2015
ISSN	1680-7316
EISSN	1680-7324
起始页码	12065
结束页码	12078
卷号	15 期号:20
英文摘要	The Tibetan Plateau (TP) is representative of typical clean atmospheric conditions. Aerosol optical depth (AOD) retrieved by the Multi-angle Imaging SpectroRadiometer (MISR) is higher over Qaidam Basin than the rest of the TP throughout the year. Different monthly variation patterns of AOD are observed over the southern and northern TP, whereby the aerosol load is usually higher in the northern TP than in the southern part. The aerosol load over the northern part increases from April to June, peaking in May. The maximum concentration of aerosols over the southern TP occurs in July. Aerosols appear to be more easily transported to the main body of the TP across the northern edge rather than the southern edge. This is maybe partly because the altitude is lower at the northern edge than that of the Himalayas located along the southern edge of the TP. Three-dimensional distributions of dust, polluted dust, polluted continental aerosol and smoke are also investigated, based on Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) data. Dust is found to be the most prominent aerosol type on the TP, and other types of aerosols affect the atmospheric environment slightly. A dividing line of higher dust occurrence in the northern TP and lower dust occurrence in the southern TP can be observed clearly at an altitude of 6-8 km above sea level, especially in spring and summer. This demarcation appears around 33-35 degrees N in the middle of the plateau, and it is possibly associated with the high-altitude terrain in the same geographic location. Comparisons of CALIPSO and MISR data show that the vertical dust occurrences are consistent with the spatial patterns of AOD. The different seasonal variation patterns between the northern and southern TP are primarily driven by atmospheric circulation, and are also related to
关键词	IN-SITU DATA HETEROGENEOUS LANDSCAPE TROPOSPHERIC AEROSOLS HYDROLOGICAL CYCLE ASIAN CLIMATE BLACK CARBON CLOUD MASK TRANSPORT MISR MODIS
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000364316800035
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258443
推荐引用方式 GB/T 7714	Xu, C.,Ma, Y. M.,You, C.,et al. The regional distribution characteristics of aerosol optical depth over the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2015,15(20).
APA	Xu, C.,Ma, Y. M.,You, C.,&Zhu, Z. K..(2015).The regional distribution characteristics of aerosol optical depth over the Tibetan Plateau.ATMOSPHERIC CHEMISTRY AND PHYSICS,15(20).
MLA	Xu, C.,et al."The regional distribution characteristics of aerosol optical depth over the Tibetan Plateau".ATMOSPHERIC CHEMISTRY AND PHYSICS 15.20(2015).