Atmospheric CH4 concentrations and the correlation between CH4 and CO concentrations

被引：0

作者：

Wei Xiu-li ^{[1
]}

Lu Yi-huai ^{[1
]}

Gao Min-guang ^{[1
]}

Liu Jian-guo ^{[1
]}

Liu Wen-qing ^{[1
]}

Xu Liang ^{[1
]}

Zhang Tian-shu ^{[1
]}

Zhu Jun ^{[1
]}

Chen Jun ^{[1
]}

机构：

[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China

来源：

SPECTROSCOPY AND SPECTRAL ANALYSIS | 2007年 / 27卷 / 04期

关键词：

greenhouse gas; FTIR; emission from the motor vehicles; correlation between CH4 and CO concentrations; METHANE;

D O I：

暂无

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Methane (CH4) is an important greenhouse gas and a key molecule in tropospheric photochemistry, some more potent than CO2. The remote-sensing experiments of CH4 were carried out in the fall of 2 000 in Beijng. The 6-day records of the atmospheric CH4 concentrations were examined by means of a time-series analysis using a fast Fourier transform with a low pass filter to elucidate the seasonal cycles and the long-term trends. The variation in the long-time trends of the CH4 concentrations in Beijing may be ascribed to the emission changes in the CH4 sources due to the human activities such as waste dumping and landfills and the emission from motor vehicles. The correlation between the CH4 and CO concentrations was analyzed.

引用

页码：668 / 670

页数：3

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