| 中国区域940nm带整层大气水汽透过率的参数化模式 |
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| 引用本文： | 伽丽丽,魏合理,徐青山,陈秀红.中国区域940nm带整层大气水汽透过率的参数化模式[J].武汉大学学报(信息科学版),2011(2):204-207,217. |
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| 作者姓名： | 伽丽丽 魏合理 徐青山 陈秀红 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所大气光学研究中心;中国科学院大气成分与光学重点实验室;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金资助项目(40775028); 中国科学院物质科学研究院人才青年基金资助项目 |
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| 摘 要： | 用MODTRAN模拟计算了全国34个地点的逐月和全年平均大气模式在940 nm波段的水汽透过率,并拟合出每种大气模式水汽透过率与水汽量经验关系式中的参数a、b。结果表明,参数a、b值与模式的整层大气可降水量有较好的相关性,并建立了a-W、b-W的经验关系式,且该关系式与海拔高度H(地面气压p0)有关。最后分析了a、b值的变化对地基消光反演水汽量精度的影响。
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| 关 键 词： | 水汽 透过率 参数化 |
Parametrization of Total Atmospheric Absorbing Transmittances by Water Vapor at 940 nm in China |
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| 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(2):204-207,217. |
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| Authors: | QIE Lili WEI Heli XU Qingshan CHEN Xiuhong |
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| Institution: | QIE Lili1,2,3 WEI Heli1,2 XU Qingshan1,2 CHEN Xiuhong1,2(1 Center for Atmospheric Optics,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,350 Shushanhu Road,Hefei 230031,China)(2 Key Laboratory of Atmospheric Composition and Optical Radiation,China)(3 Graduate School,A19 Yuquan Road,Beijing 100039,China) |
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| 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),t... |
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| Keywords: | water vapor transmittance parametrization |
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