DOI: 10.1016/j.atmosenv.2016.11.043
Scopus记录号: 2-s2.0-85005975990
论文题名: A revisit to decadal change of aerosol optical depth and its impact on global radiation over China
作者: Tang W ; , Yang K ; , Qin J ; , Niu X ; , Lin C ; , Jing X
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 150 起始页码: 106
结束页码: 115
语种: 英语
英文关键词: Aerosol optical depth
; Clear-sky
; Global radiation
; Visibility
Scopus关键词: Aerosols
; Atmospheric aerosols
; Atmospheric radiation
; Image reconstruction
; Optical properties
; Radiation
; Radiometers
; Satellite imagery
; Visibility
; Aerosol optical depths
; Clear sky
; Correlation coefficient
; Decadal variations
; Global radiation
; Horizontal visibility
; Moderate resolution imaging spectroradiometer
; Total cloud cover
; Solar radiation
; aerosol
; clear sky
; cloud cover
; decadal variation
; MODIS
; optical depth
; radiative transfer
; solar radiation
; visibility
; aerosol
; aerosol optical depth
; Article
; China
; climate change
; clinical evaluation
; cloud
; comparative study
; controlled study
; global change
; global climate
; global radiation
; humidity
; imaging
; moderate resolution imaging spectroradiometry
; optical depth
; priority journal
; radiation
; radiation exposure
; visibility
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
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 (AOD) 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 AOD, 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. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82224
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China; Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden; Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing, China
Recommended Citation:
Tang W,, Yang K,, Qin J,et al. A revisit to decadal change of aerosol optical depth and its impact on global radiation over China[J]. Atmospheric Environment,2017-01-01,150