| 整层大气甲烷总量季节变化的遥测 |
| |
| 引用本文： | 魏合理,刘庆红,徐青山,赵凤生,宋正方.整层大气甲烷总量季节变化的遥测[J].气象学报,2001,59(3):360-367. |
| |
| 作者姓名： | 魏合理 刘庆红 徐青山 赵凤生 宋正方 |
| |
| 作者单位： | 中国科学院安徽光机所 , |
| |
| 摘 要： | 利用自行研制的一台用于探测大气成分的太阳红外光谱仪 ,在地面连续自动地记录了晴天的太阳红外光谱。用逐线积分法计算了整层大气的吸收 ,发现在 3.42 8μm波段主要是大气甲烷的吸收 ,从记录的该波段的太阳红外光谱中反演出整层大气中甲烷的总含量 ,经过近一年半的观测 ,得到了合肥地区大气甲烷垂直柱含量的季节变化规律。发现其变化规律与北半球背景对流层空气采样分析法测量的甲烷季节变化规律基本相同。文中详细介绍了测量仪器、测量原理和部分测量结果 ,并对结果进行了简单的讨论。
|
| 关 键 词： | 甲烷柱含量 季节变化 红外太阳光谱 |
| 收稿时间： | 1999/6/29 0:00:00 |
| 修稿时间： | 1999年6月29日 |
REMOTE SENSING OF SEASONAL VARIATION IN COLUMN ABUNDANCE OF ATMOSPHERIC CH4 |
| |
| Wei Heli,Liu Qinghong,Xu Qingshan,Zhao Fengsheng and Song Zhengfang.REMOTE SENSING OF SEASONAL VARIATION IN COLUMN ABUNDANCE OF ATMOSPHERIC CH4[J].Acta Meteorologica Sinica,2001,59(3):360-367. |
| |
| Authors: | Wei Heli Liu Qinghong Xu Qingshan Zhao Fengsheng and Song Zhengfang |
| |
| Institution: | Key Lab. for Atmospherics of National High Technology Research and Development Plan, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031;Key Lab. for Atmospherics of National High Technology Research and Development Plan, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031;Key Lab. for Atmospherics of National High Technology Research and Development Plan, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031;Key Lab. for Atmospherics of National High Technology Research and Development Plan, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031;Key Lab. for Atmospherics of National High Technology Research and Development Plan, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031 |
| |
| Abstract: | Infrared solar spectra on clear days were measured automatically by an infrared solar spectrometer (ISS) with 0.4 cm-1 resolution developed by us. A line-by-line (LBL) computation method was used to calculate theoretical atmospheric absorption. In the wavelength range of 3.410-3.438 m, the absorption is mainly due to atmospheric methane and water vapor. Column atmospheric methane was retrieved from the recorded infrared solar spectra. The seasonal variation of column atmospheric methane in Hefei was obtained from the measurem ental data of nearly 18 months since April of 1997, and the seasonal variation was found to be similar to that of backg round data. The instruments, principles of measurement and some of results were introduced, and the results are also discussed briefly in the paper. |
| |
| Keywords: | Column abundance of methane Seasonal variation IR solar spectra |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《气象学报》浏览原始摘要信息 |
| 点击此处可从《气象学报》下载免费的PDF全文 |
|
