Research on analyzing atmospheric trasmittance based on infrared radiation measurements

Jun Zhu; Wenqing Liu; Yihuai Lu; Minguang Gao; Xueshong Zhao; Tianshu Zhang; Liang Xu

doi:10.1117/12.619497

12 May 2005 Research on analyzing atmospheric trasmittance based on infrared radiation measurements

Jun Zhu, Wenqing Liu, Yihuai Lu, Minguang Gao, Xueshong Zhao, Tianshu Zhang, Liang Xu

Proceedings Volume 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies; (2005) https://doi.org/10.1117/12.619497
Event: Optical Technologies for Atmospheric, Ocean, and Environmental Studies, 2004, Beijing, China

Abstract

A method for the measurements of atmospheric transmittance by FTIR spectrometer is proposed. Calibrating special response of system based on two-point temperature with blackbody, transmittance spectra of CO₂ IR absorption band are analyzed and calculated depending on the measurement data. The CO₂ concentration in atmosphere is acquired after fitting the measured spectra with the line parameter in HITRAN employing NLLS algorithm. The results agree with the standard CO₂ concentration considered in the environmental monitoring. It indicates that the method is feasible for measuring atmospheric transmittance and analyzing gases in quantity.

Citation Download Citation

Jun Zhu, Wenqing Liu, Yihuai Lu, Minguang Gao, Xueshong Zhao, Tianshu Zhang, and Liang Xu "Research on analyzing atmospheric trasmittance based on infrared radiation measurements", Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); https://doi.org/10.1117/12.619497

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