Ultraviolet rotational Raman lidar for high accuracy temperature profiling of the planetary boundary layer

Jiandong Mao; Zhen Xie; Min Wu; Dengxin Hua; Fei Gao

doi:10.1117/12.819588

31 December 2008 Ultraviolet rotational Raman lidar for high accuracy temperature profiling of the planetary boundary layer

Jiandong Mao, Zhen Xie, Min Wu, Dengxin Hua, Fei Gao

Author Affiliations +

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71301E (2008) https://doi.org/10.1117/12.819588
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

A rotational Raman lidar system at a wavelength of 355 nm has been developed for measuring the vertical temperature profile of the planetary boundary layer in the lower troposphere. A high-resolution grating is employed with two sets of narrowband interference filters to suppress the elastic Mie- and Rayleigh-scattering signals and to separate two rotational Raman signals for temperature retrieval. The central wavelength of two interference filters are located at 353.9 nm and 352.5 nm, respectively, in which wavelength temperature coefficients of rotational Raman spectral are opposite in sign. The preliminary experiments are carried out for verifying the feasibility of the prototype of the ultraviolet RRL, and the results show that the temperature sensitivity of the system is 0.43%/K and the statistical temperature errors of less then 1K are obtained up to a height of 2 km for nighttime with 300 mJ laser energy and observation time of ~8 min.

Citation Download Citation

Jiandong Mao, Zhen Xie, Min Wu, Dengxin Hua, and Fei Gao "Ultraviolet rotational Raman lidar for high accuracy temperature profiling of the planetary boundary layer", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71301E (31 December 2008); https://doi.org/10.1117/12.819588

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