Comparative analysis of the middle atmospheric parameters observed by 532 nm and 355 nm Rayleigh Lidar

被引：0

作者：

Deng P. ^{[1
,2
,3
]}

Zhang T. ^{[1
]}

Liu J. ^{[1
]}

Liu Y. ^{[1
,2
]}

Dong Y. ^{[1
]}

Fan G. ^{[1
]}

机构：

[1] Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei

[2] University of Science and Technology of China, Hefei

[3] State Key Laboratory of Pulsed Power Laser Technology, Electronic Engineering Institute, Hefei

来源：

| 2016年 / Chinese Society of Astronautics卷 / 45期

关键词：

Atmospheric density; Atmospheric pressure; Atmospheric temperature; Lidar; Rayleigh scattering;

D O I：

10.3788/IRLA201645.S230001

中图分类号：

学科分类号：

摘要：

The middle atmospheric density, pressure and temperature structure was measured by 532 nm and 355 nm Rayleigh Scattering Lidar between the altitude 25 km and 40 km at Hefei (31.90°N; 117.170°E), respectively. 532 nm Rayleigh Scattering Lidar system adopted Nd:YAG laser of 532 nm and 400 mm Cassegrain telescope. 355 nm Rayleigh Scattering Lidar system which was improved on the basis of 532 nm Rayleigh Scattering Lidar system, employed Nd:YAG laser of 355 nm and four Cassegrain telescopes of 400 mm. According to experimental comparison, it could obtain that the SNR of 355 nm Rayleigh Scattering Lidar is more than 532 nm Rayleigh Scattering Lidar of about 6 times. The fluctuation of the density ratio and pressure ratio of 355 nm Rayleigh Scattering Lidar to Sounding Balloon are less than the fluctuation of 532 nm Rayleigh Scattering Lidar. The temperature biasesbetween 355 nm Rayleigh Scattering Lidar and the sounding balloon of that day are about -2.14 K, and the maximum deviation is about 6 K. And the temperature biases between 532 nm Rayleigh Scattering Lidar and the sounding balloon of that day are about -6.98 K, and the maximum deviation is about 9 K. The results of comparative test for 355 nm Rayleigh Scattering Lidar and 532 nm Rayleigh Scattering Lidar have shown that the detection precision of 355 nm Rayleigh Scattering Lidar was higher than 532 nm Rayleigh Scattering Lidar, and the performance of 532 nm Rayleigh Lidar is better than 532 nm Rayleigh Lidar. © 2016, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.

引用

页数：7

共 10 条

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