| 中高层大气CO2临边辐射院模拟与观测对比分析 |
| |
| 引用本文： | 刘栋,戴聪明,魏合理.中高层大气CO2临边辐射院模拟与观测对比分析[J].红外与激光工程,2016,45(2):211001-0211001(7). |
| |
| 作者姓名： | 刘栋 戴聪明 魏合理 |
| |
| 作者单位： | 1.中国科学院安徽光学精密机械研究所 中国科学院大气成分与光学重点实验室,安徽 合肥 230031; |
| |
| 基金项目： | 国家自然科学基金(61077081);国家高技术研究发展计划 |
| |
| 摘 要： | 利用更新的高层大气辐射传输软件(SHARC)中的非局域热平衡辐射传输模式模拟了SABER传感器观测的CO2 15m、4.3m宽带通道临边辐亮度,并与相应的SABER实测数据进行了对比分析。讨论了CO2 non-LTE辐射传输的一般特性;验证了SHARC的可靠性,确定了其适用范围。在一定的精度要求下,利用SHARC模式可以较准确地模拟所有中纬度大气条件的CO2 15m、4.3m带临边辐射特性。而若要更精确地模拟中高层大气CO2 non-LTE辐射特性并应用到极地夏季等极端大气条件下,在提高该高度大气参数精度的同时,改进模式的算法也是必要的。
|
| 关 键 词： | 大气光学 临边辐射 CO2 non-LTE模式 SABER |
| 收稿时间： | 2015-06-25 |
CO2 limb radiation in the middle and upper atmosphere:comparison analysis of simulation and measurement |
| |
| Affiliation: | 1.Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;2.University of Chinese Academy of Sciences,Beijing 100049,China;3.School of Environmental Sciences and Optoelectronic Technology,University of Science and Technology of China,Hefei 230026,China |
| |
| Abstract: | The profiles of spectral pass bands' limb radiance by SABER(Sounding of the Atmosphere using Broadband Emission Radiometry) were simulated in the bands of 15m and 4.3m emission for CO2 by using the updated software of SHARC, and the simulated results were compared with corresponding SABER measurements to analyze the CO2 non-LTE radiative transfer properties and to validate the model. The comparisons show that SHARC can simulate the middle latitude atmosphere condition's CO2 limb radiation with a reasonable accuracy for applications. However, for some special atmosphere conditions, such as Arctic summer's atmosphere, the model has some deviations because of its algorithm's shortcoming. It is expected to improve the algorithm to contain more sophisticated chemical-kinetic processes and achieve better middle and upper atmospheric parameters, which make more accurate simulation of non-LTE radiative transfer properties. |
| |
| Keywords: | |
|
| 点击此处可从《红外与激光工程》浏览原始摘要信息 |
|
点击此处可从《红外与激光工程》下载全文 |
|
