QIE Lili, WEI Heli, XU Qingshan, CHEN Xiuhong. Parametrization of Total Atmospheric Absorbing Transmittances by Water Vapor at 940 nm in China[J]. Geomatics and Information Science of Wuhan University, 2011, 36(2): 204-207.
Citation: QIE Lili, WEI Heli, XU Qingshan, CHEN Xiuhong. Parametrization of Total Atmospheric Absorbing Transmittances by Water Vapor at 940 nm in China[J]. Geomatics and Information Science of Wuhan University, 2011, 36(2): 204-207.
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Parametrization of Total Atmospheric Absorbing Transmittances by Water Vapor at 940 nm in China

    Abstract
  • The water vapor transmittances in the 940 nm band are computed using MODTRAN for 34 sites in China.Parameters a and b for all the atmospheric models in the empirical water vapor transmittance function are fitted.It is found that the values of a and b is the function of atmospheric water vapor amount.The empirical functions are established for the relationships between the values of a and b and atmospheric model's perciptible water.Considering the parameter of the surface altitude H(or surface pressure p0),the empirical coefficients related to H are parameterized.Finally,the uncertainty in retrieved PWV caused by parameter a and b is analyzed.
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