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VERTICAL PROFILE MEASUREMENTS OF CARBONYLSULFIDE IN THE STRATOSPHERE

被引：33
作者：
ENGEL, A
SCHMIDT, U
机构：
来源：
GEOPHYSICAL RESEARCH LETTERS | 1994年 / 21卷 / 20期
关键词：
D O I：
10.1029/94GL01461
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Measurements of COS in the altitude region between 17 and 30 km were made, using a whole air sampling technique with subsequent gaschromatographic analysis. The data show COS mixing-ratios from about 200 pptv at 17 km decreasing to less then 20 pptv at about 28 km. This behaviour is in qualitative agreement with the model-calculations by Turco et al. (1981). From the correlation with CFCl3 and CF2Cl2 the lifetime with respect to removal in the stratosphere is calculated to be 69+/-28 years. This corresponds to a sink of between 47 and 112 * 10(9) g of COS per year in the stratosphere. Comparing this number to the estimated fluxes needed to sustain the background sulfuric-acid aerosol confirms that most of the non-volcanic aerosol is produced by the oxidation of COS in the stratosphere.
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页码：2219 / 2222
页数：4
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