Journal of University of Chinese Academy of Sciences >
Aerosol direct radiative forcing at three AERONET sites in China
Received date: 2013-06-09
Revised date: 2013-10-10
Online published: 2014-05-15
The daily averages of the aerosol radiative forcing (ARF) at the surface and the top of the atmosphere (TOA) were calculated in several years in China. A radiative transfer model (SBDART) was utilized to simulate the solar irradiance values at the surface and TOA by using as input aerosol properties retrieved from AERONET sun photometer measurements. At the AERONET stations at SACOL, Xianghe, and Taihu, the daily mean ARF values were (-7.2±7.1), (-11.7±9.5), and (-14.9±8.3) W/m2 at the TOA; (-21.9±12.2),(-36.5±29.5), and (-42.2±21.0) W/m2 at the surface; and (14.7±9.7), (24.8±23.0), and (27.3±16.5) W/m2 in the atmosphere, respectively. The surface cooling and the atmosphere warming caused by aerosol at Xianghe and Tiahu stations were greater than at SACOL. The daily ARF of the desert dust aerosol was significantly greater than the total average of aerosol, especially at the surface and in the atmosphere, showing that dust can produce more obvious surface cooling and atmosphere warming.
Key words： atmospheric aerosol; dust; aerosol optical depth; radiative forcing
ZHANG Zhiwei , WANG Hongbin , ZHANG Lei , TIAN Pengfei , WANG Jin , WANG Tengjiao . Aerosol direct radiative forcing at three AERONET sites in China[J]. Journal of University of Chinese Academy of Sciences, 2014 , 31(3) : 297 -305 . DOI: 10.7523/j.issn.2095-6134.2014.03.002
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