收稿日期: 2003-09-15
修回日期: 2004-02-19
网络出版日期: 2004-10-01
基金资助
中国科学院知识创新工程重大项目“中国陆地和近海生态系统碳收支研究”（编号：KZCX1-SW-01）；国家自然科学基金项目“北京地区机动车尾气排放规律及对空气质量影响的研究”(编号:40222202)资助.
SEASONAL VARIATIONS OF ATMOSPHERIC GREENHOUSE GASES IN BEIJING
Received date: 2003-09-15
Revised date: 2004-02-19
Online published: 2004-10-01
刘强 , 王明星 , 王跃思 . 北京地区大气主要温室气体的季节变化[J]. 地球科学进展, 2004 , 19(5) : 817 -823 . DOI: 10.11867/j.issn.1001-8166.2004.05.0817
New trends of atmospheric greenhouse gases in Beijing are reported. A method named decomposition of time series is used to analyze the seasonal variations of three main greenhouse gases in Beijing. The results show that the annual variations of atmospheric methane are ranged from -49.2× 10-9 to 55.7×10-9(V/V) and from -26.4×10-6 to 34.0×10-6 (V/V) for carbon dioxide. According to our analyses, there are no seasonal variations for nitrous oxide.
Key words： Greenhouse gases; Seasonal variation; Time series decomposition; Beijing.
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