Sensitivity studies of high-precision methane column concentration inversion using a line-by-line radiative transfer model

发布者:系统管理员发布时间:2014-07-20浏览次数:1288

题名:Sensitivity studies of high-precision methane column concentration inversion using a line-by-line radiative transfer model

领域:GEOSCIENCES, MULTIDISCIPLINARY 四区

来源:FRONTIERS OF EARTH SCIENCE

发表年代:2013年
作者:Ci SONG, Jiong SHU, Mandi ZHOU, Wei GAO

 

Hyper-spectral remote sensing may provide an effective solution to retrieve the methane (CH4) concentration in an atmospheric column. As a result of exploring the absorptive characteristics of CH4, an appropriate band is selected from the hyperspectral data for the detection of its column concentration with high precision. Following the most recent inversion theory and methods, the line-by-line radiative transfer model (LBLRTM) is employed to forward model the impact of four sensitive factors on inversion precision, including CH4 initial profile, temperature, overlapping gases, and surface albedo. The study results indicate that the four optimized factors could improve the inversion precision of atmospheric CH4 column concentration.


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