大气与环境光学学报, 2011, 6 (5): 364, 网络出版: 2011-09-27  

基于光腔衰荡光谱的气溶胶吸收系数测量方法不确定度分析

Uncertainty Analysis of Absorption Coefficient Measurement of Aerosols Based on Cavity Ring Down Spectroscopy
作者单位
1 合肥工业大学仪器科学与光电工程学院, 安徽 合肥 230009
2 南京大学大气科学学院, 江苏 南京 210093
摘要
差分法(extinction minus scattering)是气溶胶吸收系数的常用测量方法之一。针对气候变化对气溶胶吸 收系数的敏感性要求,理论分析了基于光腔衰荡光谱测量消光系数、散射系数的不确定度,推导了气溶胶吸 收系数的不确定公式,并讨论了不同气溶胶单次散射联合反照率下气溶胶吸收系数的不确定度值,为研究 大气气溶胶吸收对气溶胶辐射强迫以及气候强迫的影响提供参考。
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.
参考文献

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李保生, 韩永, 纪峰, 卢荣胜, 费业泰. 基于光腔衰荡光谱的气溶胶吸收系数测量方法不确定度分析[J]. 大气与环境光学学报, 2011, 6(5): 364. LI Baosheng, HAN Yong, JI Feng, LU Rong-sheng, FEI Ye-tai. Uncertainty Analysis of Absorption Coefficient Measurement of Aerosols Based on Cavity Ring Down Spectroscopy[J]. Journal of Atmospheric and Environmental Optics, 2011, 6(5): 364.

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