气候变化领域集成服务门户(CCPortal): A revisit to decadal change of aerosol optical depth and its impact on global radiation over China

CCPortal

DOI	10.1016/j.atmosenv.2016.11.043
	A revisit to decadal change of aerosol optical depth and its impact on global radiation over China
	Tang, Wenjun; Yang, Kun; Qin, Jun; Niu, Xiaolei; Lin, Changgui; Jing, Xianwen
通讯作者	Tang, WJ (通讯作者)
发表日期	2017
ISSN	1352-2310
EISSN	1873-2844
起始页码	106
结束页码	115
卷号	150
英文摘要	Global radiation over China decreased between the 1960s and 1990, since when it has remained stable. As the total cloud cover has continued to decrease since the 1960s, variations in aerosols were suggested in previous studies to be the primary cause for variations in global radiation over China. However, the effect of aerosols on global radiation on a decadal scale has not been physically quantified over China. In this study, aerosol optical depth (ADD) data since 1980 are estimated by combining horizontal visibility data at stations in China and AOD observed by the moderate resolution imaging spectroradiometer (MODIS). It is found that the AOD exhibits decadal changes, with two decreasing periods (before the end of 1980s and after 2006) and one increasing period (from 1990 to 2006). With the derived ADD, a clear sky model is then applied to quantify the role of aerosols in the variations in global radiation over China. The results show that aerosol direct effect cannot fully explain the decadal variations in the global radiation over China between 1980 and 2010, though it has a considerable effect on global radiation climatology. There are significant differences between the trends of clear-sky global radiation impacted by aerosols and those of all-sky global radiation impacted by aerosols and clouds, and the correlation coefficient for the comparison is very low. Therefore, the variations in all-sky global radiation over China are likely to be due to changes in cloud properties and to interactions between clouds and aerosols. (C) 2016 Elsevier Ltd. All rights reserved.
关键词	DIRECT SOLAR TRANSMITTANCE BROAD-BAND MODELS PAST 30 YEARS IRRADIANCE PREDICTIONS HYDROLOGICAL CYCLE SURFACE TRENDS CLIMATE CLOUD VISIBILITY
英文关键词	Global radiation; Aerosol optical depth; Clear-sky; Visibility
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:000392770700011
来源期刊	ATMOSPHERIC ENVIRONMENT
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/258975
推荐引用方式 GB/T 7714	Tang, Wenjun,Yang, Kun,Qin, Jun,et al. A revisit to decadal change of aerosol optical depth and its impact on global radiation over China[J]. 中国科学院青藏高原研究所,2017,150.
APA	Tang, Wenjun,Yang, Kun,Qin, Jun,Niu, Xiaolei,Lin, Changgui,&Jing, Xianwen.(2017).A revisit to decadal change of aerosol optical depth and its impact on global radiation over China.ATMOSPHERIC ENVIRONMENT,150.
MLA	Tang, Wenjun,et al."A revisit to decadal change of aerosol optical depth and its impact on global radiation over China".ATMOSPHERIC ENVIRONMENT 150(2017).