Development and observational studies of scanning coaxial Mie lidar

Lu Li; Chen-bo Xie; Zhan-ye Zhang; Bang-xin Wang; Peng Zhuang; Yufei Chu; Zhiyuan Fang; Jia-di Shao

doi:10.1117/12.2565135

17 April 2020 Development and observational studies of scanning coaxial Mie lidar

Lu Li, Chen-bo Xie, Zhan-ye Zhang, Bang-xin Wang, Peng Zhuang, Yufei Chu, Zhiyuan Fang, Jia-di Shao

Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 114555Q (2020) https://doi.org/10.1117/12.2565135
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

Cloud and aerosol play a very important role in the Earth's atmospheric system,the accurate data of the three- dimensional information of optical characteristic of cloud and aerosol are of great significance to the climate change research.The new scanning coaxial Mie lidar system (SCML lidar) has been developed,which is mainly used for automatic continuous measurement of temporal and spatial variation of optical characteristics of aerosol and cloud. The axes of the emergent bean and the telescope of the coaxial lidar system remain in the same line by the collimation system.With the elevation and azimuth motors,the SCML lidar can take the horizontal,vertical and conial scans of the atmosphere.This paper discusses the structure,technical parameters,detection principle and modes of the SCML lidar and its results.According to the relationship between the boundary value and the range corrected signal is derived from the lidar equation,the new extinction coefficient iterative method is proposed to obtain the accurate boundary value of extinction coefficient of cloud and aerosol at lower elevation angle.The observational results show that the SCML lidar can provide the three-dimensional information of the extinction coefficient of aerosol and cloud.It is helpful to locate the sources of pollution aerosol in urban area and the smoke of straw burning in suburb,to determinate the height of planetary boundary layer(PBL),to improve the measurement accuracy of the lower atmosphere,and to track and monitor the aerosol plume and its transportation process.

Citation Download Citation

Lu Li, Chen-bo Xie, Zhan-ye Zhang, Bang-xin Wang, Peng Zhuang, Yufei Chu, Zhiyuan Fang, and Jia-di Shao "Development and observational studies of scanning coaxial Mie lidar", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 114555Q (17 April 2020); https://doi.org/10.1117/12.2565135

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KEYWORDS

LIDAR

Aerosols

Electroluminescence

Mineralogy

Optical testing

Clouds

Atmospheric particles

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