Journal of Atmospheric and Environmental Optics ›› 2011, Vol. 6 ›› Issue (5): 364-367.

• 论文 • Previous Articles     Next Articles

Uncertainty Analysis of Absorption Coefficient Measurement of Aerosols Based on Cavity Ring Down Spectroscopy

LI Baosheng 1, HAN Yong 2, JI Feng 1, LU Rong-sheng 1, FEI Ye-tai 1   

  1. (1 School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China;    
     2 School of Atmospheric Sciences, Nanjing University, Nanjing 210093, China)
  • Received:2010-05-04 Revised:2011-11-25 Published:2011-09-09

Abstract:

Extinction minus scattering is an important method for aerosols absorption measurement. Due to sensitivity of climate change depending on aerosols absorption, uncertainty of extinction and scattering coefficient is analyzed, and uncertainty equation of aerosols absorption with extinction minus scattering is established. Under different coalbedo, uncertainty value of aerosols absorption is discussed. The result would play an important role in evaluating aerosols radiation forcing and giving useful reference for climate forcing effect.

Key words: cavity ring down spectroscopy, aerosols absorption coefficient, uncertainty

CLC Number: