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An Evidence of Aerosol Indirect Effect on Stratus Clouds from the Integrated Ground-Based Measurements at the ARM Shouxian Site |
TANG Jin-Ping,WANG Pu-Cai,DUAN Min-Zheng,CHEN Hong-Bin,XIA Xiang-Ao,LIAO Hong |
LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;Graduate University of Chinese Academy of Sciences, Beijing 100049,LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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Abstract The aerosol effect on clouds was explored using remote sensing of aerosol and cloud data at Shouxian, China. Non-precipitation, ice-free, and overcast clouds were firstly chosen by a combination of sky images from the Total Sky Imager (TSI), cloud base heights from the Ceilometer, and vertical temperature profiles from the Balloon-Borne Sounding System (BBSS). Six cases were chosen in summer, and seven in autumn. The averaged cloud effective radii (re), cloud optical depth (COD), aerosol total light scattering coefficient (σ), and liquid water path (LWP) are , respectivey, 6.47 μm, 35.4, 595.9 mm-1, 0.19 mm in summer, and 6.07 μm, 96.0, 471.7 mm-1, 0.37 mm in autumn. The correlation coefficient between re and σ was found to change from negative to positive value as LWP increases.
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Received: 14 October 2010
Revised: 17 December 2010
Accepted: 19 December 2010
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