A Fast Moderate-Spectral-Resolution Atmospheric Transmittance Model

Heli Wei; Xiuhong Chen; Ruizhong Rao; Yingjian Wang; Ping Yang

doi:10.1364/HISE.2007.HMC3

Fourier Transform Spectroscopy/ Hyperspectral Imaging and Sounding of the Environment
OSA Technical Digest Series (CD) (Optica Publishing Group, 2007),
paper HMC3
•https://doi.org/10.1364/HISE.2007.HMC3

A Fast Moderate-Spectral-Resolution Atmospheric Transmittance Model

Heli Wei, Xiuhong Chen, Ruizhong Rao, Yingjian Wang, and Ping Yang

Hyperspectral Imaging and Sounding of the Environment 2007

Santa Fe, New Mexico United States
11–15 February 2007
ISBN: 1-55752-828-4

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Hyperspectral Data Analysis (HMC)

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H. Wei, X. Chen, R. Rao, Y. Wang, and P. Yang, "A Fast Moderate-Spectral-Resolution Atmospheric Transmittance Model," in Fourier Transform Spectroscopy/ Hyperspectral Imaging and Sounding of the Environment, OSA Technical Digest Series (CD) (Optica Publishing Group, 2007), paper HMC3.

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Abstract

This paper reports on a new narrowband transmittance model with a spectral resolution of 1 cm⁻¹ on the basis of the parameters fitted from the LBLRTM calculations. The mean transmittances within a spectral width of 1cm⁻¹ are fitted for various values of absorber amount and a database of the fitting coefficients is obtained. A Curtis-Godson (C-G) approximation method is used to apply the model to an inhomogeneous atmosphere. The narrow band transmittance can be effectively computed on the basis of the fitting coefficients. The present method is extensively validated against LBLRTM in a spectral region spanning from 1 to 25000cm⁻¹.

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