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Proceedings Paper

UV Raman lidar for fine detection of atmospheric relative humidity profile
Author(s): Yufeng Wang; Dengxin Hua; Jiandong Mao; Li Wang; Shichun Li; Yaoke Xue
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Paper Abstract

An ultraviolet Raman lidar system at 354.7nm laser wavelength has been developed to measure the elastic scattering signal and the vibrational Raman scattering signal of N2 and H2O for fine-detection of atmospheric humidity profile. A newly spectroscopic filter structured with a high-spectral-resolution grating and two narrow band mirrors are used to separate those backscattering signals finely. The density of humidity is derived from the vibrational Raman scattering signal of N2 and H2O, the relative humidity profile is obtained combining with the temperature profile taken simultaneously by Raman temperature lidar. Some preliminary experiments have been carried out in nighttime at Xi'an area, the wator vapor mixture ratio vertical profile is analyzed. The experiments results indicate that a measurement error of the relative humidity less than 10% is obtained within the atmospheric boundary layer under the condition of laser energy of 300mJ and observation time of 10min.

Paper Details

Date Published: 28 August 2009
PDF: 9 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 738225 (28 August 2009); doi: 10.1117/12.835986
Show Author Affiliations
Yufeng Wang, Xi'an Univ. of Technology (China)
Dengxin Hua, Xi'an Univ. of Technology (China)
Jiandong Mao, Xi'an Univ. of Technology (China)
North Univ. for Nationalities (China)
Li Wang, Xi'an Univ. of Technology (China)
Shichun Li, Xi'an Univ. of Technology (China)
Yaoke Xue, Xi'an Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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