| Error of DIAL-measured Ozone Concentration and a Three-Wavelength Inversion Technique |
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| 作者姓名： | 邱金桓 |
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| 作者单位： | Institute of |
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| 摘 要： | Sensitivity of the error in the stratospheric ozone concentration measured by DIAL to the scattering property of the stratospheric aerosol is studied through both theoretical analysis and numerical experiment in this paper, and based on the sensitivity, a three-wavelength lidar inversion technique is proposed for a simultaneous determination of ozone concentration profile, aerosol backscatter coefficient profile and its size distribution in the stratosphere. It is found from the sensitivity study that there is a considerable effect of the stratospheric aerosol on accuracy of the ozone concentration solution. If the aerosol scattering is neglected, a large error of the solution can be obtained, especially when there is the stratospheric volcanic cloud, the error can be up to 100%. According to numerical experiments, a great improvement of the ozone concentration solution is obtained by using the present three-wavelenght inversion method.
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Error of DIAL-measured Ozone Concentration and a Three-Wavelength Inversion Technique |
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| QIU Jin-Huan.Error of DIAL-measured Ozone Concentration and a Three-Wavelength Inversion Technique[J].Science in China(Chemistry),1993(11). |
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| Authors: | QIU Jin-Huan |
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| Abstract: | Sensitivity of the error in the stratospheric ozone concentration measured by DIAL to the scattering property of the stratospheric aerosol is studied through both theoretical analysis and numerical experiment in this paper, and based on the sensitivity, a three-wavelength lidar inversion technique is proposed for a simultaneous determination of ozone concentration profile, aerosol backscatter coefficient profile and its size distribution in the stratosphere. It is found from the sensitivity study that there is a considerable effect of the stratospheric aerosol on accuracy of the ozone concentration solution. If the aerosol scattering is neglected, a large error of the solution can be obtained, especially when there is the stratospheric volcanic cloud, the error can be up to 100%. According to numerical experiments, a great improvement of the ozone concentration solution is obtained by using the present three-wavelenght inversion method. |
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| Keywords: | ozone concentration differential absorption aerosol and baekscatter coefficient |
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