Three-wavelength dual-DIAL method for ozone measurements

Zhien Wang; Huanling Hu; Jun Zhou; Zhiben Gong

doi:10.1117/12.257209

8 November 1996 Three-wavelength dual-DIAL method for ozone measurements

Zhien Wang, Huanling Hu, Jun Zhou, Zhiben Gong

Proceedings Volume 2831, Ultraviolet Atmospheric and Space Remote Sensing: Methods and Instrumentation; (1996) https://doi.org/10.1117/12.257209
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

This paper systematically discussed the three-wavelength dual differential absorption lidar (dual-DIAL) method for measuring the stratospheric and tropospheric ozone profiles in the presence of high loading or inhomogeneous aerosols along the measurement path. Results of theoretical analysis and comparisons with DIAL and aerosol correction method show that the three-wavelength dual-DIAL method not only can greatly reduce the effect of aerosols on tropospheric and stratospheric ozone measurements, but also can get more accurate ozone profiles than DIAL after aerosol correction. The system error of three-wavelength dual-DIAL due to aerosols is kept in a low level. As the system error in the three-wavelength dual-DIAL is almost insensitive to the spatial inhomogeneity of aerosol loading and aerosol optical properties, this method does not need to known the detailed information about the spatial distribution of aerosol loading and aerosol optical properties. In the regions contained high loading or inhomogeneous aerosols, accurate ozone profile can be obtained directly from the lidar return signals with three wavelengths dual-DIAL method. Experimental results indicate the three wavelengths dual- DIAL method is effective.

Citation Download Citation

Zhien Wang, Huanling Hu, Jun Zhou, and Zhiben Gong "Three-wavelength dual-DIAL method for ozone measurements", Proc. SPIE 2831, Ultraviolet Atmospheric and Space Remote Sensing: Methods and Instrumentation, (8 November 1996); https://doi.org/10.1117/12.257209

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KEYWORDS

Aerosols

Ozone

Backscatter

Error analysis

Absorption

LIDAR

Optical properties

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