| 我国瓦里关山、兴隆温室气体CO2、CH4和N2O的背景浓度 |
| |
| 引用本文： | 程红兵,王木林,温玉璞,王庚辰.我国瓦里关山、兴隆温室气体CO2、CH4和N2O的背景浓度[J].应用气象学报,2003,14(4):402-409. |
| |
| 作者姓名： | 程红兵 王木林 温玉璞 王庚辰 |
| |
| 作者单位： | 1.中国气象科学研究院, 北京 100081 |
| |
| 基金项目： | 本工作得到"八五"和"九五"国家重点科技攻关计划(项目编号:85-913-01-01,96-911-01-04)资助. |
| |
| 摘 要： | 为了研究中国大陆温室性气体CO2、CH4和N2O大气浓度的区域分布和变化特征以及与人类活动的关系，从1995~2000年，先后在青海瓦里关山全球大气基准站（36°18′N，100°54′E，3810 m）及河北中国科学院兴隆天文台（40°24′N，117°30′E, 940 m），利用不锈钢瓶取样和气相色谱法分析，观测了两地大气中温室气体CO2、CH4和N2O的浓度及其变化情况。结果表明:兴隆和瓦里关山站CO2、CH4和N2O的同期年平均浓度分别为376.7×10-6和373.5×10-6，1886×10-9和1831×10-9，316.7×10-9和314.9×10-9。从1995~2000年，兴隆站CO2、CH4和N2O的年增长率分别为1.95×10-6，9.02×10-9和0.75×10-9。而瓦里关山站从1997~2000年，CO2、CH4和N2O的年增长率分别为1.41×10-6，9.95×10-9和0.82×10-9。两地大气中三种气体的浓度与年增长率与全球同类台站的观测结果接近。同时也在一定程度上反映了各自不同的环境背景特征。
|
| 关 键 词： | 气相色谱法 温室性气体 背景浓度 年均增长率 |
| 收稿时间： | 2002-07-05 |
| 修稿时间： | 2002年7月5日 |
Background Concentration of Atmospheric CO2, CH4 and N2O at Mt. Waliguan and Xinglong in China |
| |
| Cheng Hongbing,Wang Mulin,Wen Yupu,Wang Geng chen.Background Concentration of Atmospheric CO2, CH4 and N2O at Mt. Waliguan and Xinglong in China[J].Quarterly Journal of Applied Meteorology,2003,14(4):402-409. |
| |
| Authors: | Cheng Hongbing Wang Mulin Wen Yupu Wang Geng chen |
| |
| Institution: | 1.Chinese Academy of Meteorological Sciences, Beijing 1000812.Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
| |
| Abstract: | In order to study the characteristics of regional distribution and variation of greenhouse gases, including CO2, CH4 and N2O on the China continent and their relationships with human activities, the variations of atmospheric concentrations of CO2, CH4 and N2O were measured at China Atmosphere Watch Baseline Observatory at Mt. Waliguan (36°18′N, 100°54′E, 3810 m) and at Astronomical Observatory at Xinglong (40°24′N, 117°30′E, 940 m) during the period of 1995 to 2000 with stainless steel sampling canisters by means of the gas chromatographic method. The results show that the average atmospheric concentrations of CO2, CH4 and N2O at both Xinglong and Mt. Waliguan are 376.7×10-6 and 373.5×10-6, 1886×10-9 and 1831×10-9, 316.7×10-9 and 314.9×10-9, respectively. From 1995 to 2000, the average annual increments of CO2, CH4 and N2O at Xinglong are 1.95×10-6 mol/mol, 9.02×10-9 mol/mol, and 0.75×10-9 mol/mol, respectively. The average annual increments of CO2, CH4 and N2O at Mt. Waliguan are 1.41×10-6 mol/mol, 9.95×10-9 mol/mol and 0.82×10-9 mol/mol respectively. The atmospheric concentrations of CO2, CH4 and N2O and the average annual growth rates are closed to the monitoring results from the similar global observatories. On the other hand, the results reveal the difference of the environmental background between Xinglong and Mt. Waliguan to some extent. |
| |
| Keywords: | Gas chromatography Greenhouse gases Backgr ound concentration Annual mean growth rate |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《应用气象学报》浏览原始摘要信息 |
| 点击此处可从《应用气象学报》下载免费的PDF全文 |
|
