Comparison and research of group refractivity models and atmospheric delay to lidar

Jiuying Chen; Mei Zhou; Geer Teng; Huijing Zhang; Jian Hu; Chuanrong Li

doi:10.1117/12.2324253

23 October 2018 Comparison and research of group refractivity models and atmospheric delay to lidar

Jiuying Chen, Mei Zhou, Geer Teng, Huijing Zhang, Jian Hu, Chuanrong Li

Proceedings Volume 10782, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions VII; 107820G (2018) https://doi.org/10.1117/12.2324253
Event: SPIE Asia-Pacific Remote Sensing, 2018, Honolulu, Hawaii, United States

Abstract

Satellite laser range system measures the distance between the satellite and the surface of the earth by figuring out the transit time of laser pulse. The beam is refracted when it goes through the atmosphere. The atmosphere refraction effect causes laser propagation delay and path bending, which is one of the key factors to restrict the accuracy of laser ranging. In order to improve the accuracy of atmospheric refraction delay correction, it is necessary to strengthen the study of atmospheric group refractivity models and atmospheric refraction delay correction method. According to the data of Xuzhou upper air meteorological station, which are the monthly values of upper limit layers for 30 years (1981-2010) in China, three atmospheric group refractivity models were analyzed and compared. The atmospheric refraction delays to LiDAR were calculated by ray tracing method. The differences among the group refractivity models as a function of month or direction angle were given, which lay the foundation for the practical application and precision evaluation of LiDAR.

Citation Download Citation

Jiuying Chen, Mei Zhou, Geer Teng, Huijing Zhang, Jian Hu, and Chuanrong Li "Comparison and research of group refractivity models and atmospheric delay to lidar", Proc. SPIE 10782, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions VII, 107820G (23 October 2018); https://doi.org/10.1117/12.2324253

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KEYWORDS

Atmospheric modeling

Atmospheric laser remote sensing

Refractive index

Atmospheric corrections

Data modeling

Meteorology

LIDAR

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