空气CH4浓度变化及其与CO的相关性

来源 :光谱学与光谱分析 | 被引量 : 0次 | 上传用户：cfsjy4

【摘要】

：

CH4是一种重要的温室气体,在空气中的含量仅次于CO2。化合物之间的相关性在化合物的浓度测量和估算等方面都有重要的意义。通过分辨率为1cm-1的长开放光路傅里叶变换红外光谱仪测量采样路径内的北京西四环高速公路附近空气CH4和CO透过率光谱,进行非线性最小二乘光谱拟合,计算出待测组分浓度。北京秋季空气CH4浓度变化趋势几乎一样。白天的浓度变化趋势表明城市中人为活动对CH4的排放影响极大,尤其是机动车

【作者】

：

魏秀丽陆亦怀高闽光刘建国刘文清徐亮张天舒朱军陈军

【机构】

：

中国科学院环境光学与技术重点实验室

【出处】

：

光谱学与光谱分析

【发表日期】

：

2007年04期

【关键词】

：

温室气体 FTIR 机动车尾气 CH4/CO相关性

【基金项目】

：

国家高技术研究发展计划(863计划)

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空气CH4浓度变化及其与CO的相关性

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