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篇目详细内容 |
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【篇名】 |
Sensitivity studies of high-precision methane column concentration inversion using a line-by-line radiative transfer model |
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【刊名】 |
Frontiers of Earth Science |
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【刊名缩写】 |
Front. Earth Sci |
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【ISSN】 |
2095-0195 |
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【EISSN】 |
2095-0209 |
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【DOI】 |
10.1007/s11707-013-0391-x |
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【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
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【出版年】 |
2013 |
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【卷期】 |
7
卷4期 |
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【页码】 |
439-446
页,共
8
页 |
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【作者】 |
Ci SONG;
Jiong SHU;
Mandi ZHOU;
Wei GAO;
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【关键词】 |
methane; inversion; radiance; sensitivity; forward model; high precision |
【摘要】 |
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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 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 results indicate that the four optimized factors could improve the inversion precision of atmospheric CH4 column concentration. |
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