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差分吸收光谱技术监测气溶胶消光系数的误差分析
Determination of the Error of Aerosol Extinction Coefficient Measured by DOAS
【摘要】 给出了在利用差分吸收光谱技术监测大气气溶胶消光系数时确定测量误差的方法。分析了光源变化、探测器积分时间间隔、大气湍流、系统参数校正、测量系统位移以及粒子后向散射等可能对测量结果产生影响的因素,通过理论分析和实际测量确定气溶胶消光系数误差为0.03 km-1。
【Abstract】 The method of defining the error of aerosol extinction coefficient measured by differential optical absorption spectroscopy(DOAS) is described.Some factors which could bring errors to result,such as variation of source,integral time, atmospheric turbulence,calibration of system parameter,displacement of system,and back scattering of particles,are analyzed.The error of aerosol extinction coefficient,0.03 km-1,is determined by theoretical analysis and practical measurement.
【基金】 国家自然科学基金(10274080)资助项目
- 【文献出处】 光谱学与光谱分析 ,Spectroscopy and Spectral Analysis , 编辑部邮箱 ,2006年10期
- 【分类号】O433.4;X513
- 【被引频次】7
- 【下载频次】256