Radiocarbon observations in atmospheric CO2:: Determining fossil fuel CO2 over Europe using Jungfraujoch observations as background
Radiocarbon observations in atmospheric CO2:: Determining fossil fuel CO2 over Europe using Jungfraujoch observations as background
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DOI：
10.1016/j.scitotenv.2007.10.019
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发表时间：
2008-03-01
影响因子：
9.8
通讯作者：
Meinhardt, Frank
中科院分区：
文献类型：
--
作者：
Levin, Ingeborg;Hammer, Samuel;Meinhardt, Frank
每月平均（CO2）-C-14观测在两个区域站在德国（绍因斯兰天文台，黑森林，海德堡，上莱茵河河谷）进行了比较，在高阿尔卑斯山研究站少女峰（瑞士阿尔卑斯山）的自由对流层背景测量，估计区域化石燃料CO2盈余在区域站。绍因斯兰的长期平均化石燃料CO2盈余为1.31 +/- 0.09 ppm，而海德堡为10.96 +/- 0.20 ppm。在过去20年里，在这两个地点都没有观察到明显的趋势。化石燃料CO2抵消的强烈季节性变化表明排放量具有强烈的季节性，但也表明垂直混合对地面排放的大气稀释。(c)2007 Elsevier B. V.保留所有权利。
Monthly mean (CO2)-C-14 observations at two regional stations in Germany (Schauinsland observatory, Black Forest, and Heidelberg, upper Rhine valley) are compared with free tropospheric background measurements at the High Alpine Research Station Jungfraujoch (Swiss Alps) to estimate the regional fossil fuel CO2 surplus at the regional stations. The long-term mean fossil fuel CO2 surplus at Schauinsland is 1.31 +/- 0.09 ppm while it is 10.96 +/- 0.20 ppm in Heidelberg. No significant trend is observed at both sites over the last 20 years. Strong seasonal variations of the fossil fuel CO2 offsets indicate a strong seasonality of emissions but also of atmospheric dilution of ground level emissions by vertical mixing. (c) 2007 Elsevier B.V. All rights reserved.