DOI: 10.1016/j.atmosenv.2013.08.024
Scopus记录号: 2-s2.0-84890774972
论文题名: Positive relationship between liquid cloud droplet effective radius and aerosol optical depth over Eastern China from satellite data
作者: Tang J ; , Wang P ; , Mickley L ; J ; , Xia X ; , Liao H ; , Yue X ; , Sun L ; , Xia J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 84 起始页码: 244
结束页码: 253
语种: 英语
英文关键词: Aerosol optical depth
; Cloud effective radius
; Eastern China
Scopus关键词: Atmospheric aerosols
; Radiometers
; Satellite imagery
; Aerosol optical depths
; Cloud effective radius
; Cloud top pressure
; Eastern China
; Moderate resolution imaging spectroradiometer
; Negative correlation
; North China Plain
; Positive correlations
; Water pollution
; aerosol property
; cloud droplet
; MODIS
; optical depth
; pressure gradient
; relative humidity
; satellite data
; aerosol
; aerosol optical depth
; air pollutant
; article
; atmospheric pressure
; calculation
; China
; cloud
; cloud effective radius
; environmental parameters
; humidity
; latitude
; liquid
; moderate resolution imaging spectroradiometer
; molecular interaction
; optical depth
; priority journal
; satellite imagery
; velocity
; water vapor
; wind
; 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: Correlations between water cloud effective radius (CER) and aerosol optical depth (AOD) from the Moderate Resolution Imaging Spectroradiometer (MODIS) are examined over seven sub-regions in Eastern China for 2003-2012. Water phase cloud is defined as having a cloud top pressure greater than 800hPa. Significant negative correlation coefficients (. r=-0.79~-0.94) between AOD and CER are derived over the East Sea and the South China Sea for grid cells with AOD<0.3. However, positive correlations (. r=0.01-0.91) are calculated for cells with AOD>0.3. In contrast, significant positive correlations (. r=0.67-0.95) are derived over the Eastern China mainland and Yellow Sea. Further analysis for North China Plain shows that variations in wind speed and relative humidity may account for such positive correlations. Southerly winds carry high levels of pollutants and abundant water vapor, resulting in coincident increases in both AOD and CER in North China Plain, while the northerly winds transport dry and clean air from high latitudes, leading to decreases in AOD and CER. Both processes contribute to the positive correlations between AOD and CER over Eastern China, suggesting that the influence of background weather conditions need to be considered when studying the interactions between aerosol and cloud. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81016
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; University of Chinese Academy Sciences, Beijing 100049, China; School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, NUIST, Nanjing 210044, China
Recommended Citation:
Tang J,, Wang P,, Mickley L,et al. Positive relationship between liquid cloud droplet effective radius and aerosol optical depth over Eastern China from satellite data[J]. Atmospheric Environment,2014-01-01,84