Ground-Based Measurements of the Total Column of Freons in the Atmosphere near St. Petersburg (2009–2017)

被引：0
|
作者：
A. V. Polyakov
Yu. M. Timofeyev
Ya. A. Virolainen
M. V. Makarova
A. V. Poberovskii
H. K. Imhasin
机构：
[1] Saint Petersburg State University,
来源：
Izvestiya, Atmospheric and Oceanic Physics | 2018年 / 54卷
关键词：
chlorofluorocarbons (freons); total content in the atmosphere; ground-based transmittance method;
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学科分类号：
摘要：
The results of the first long-term (2009–2017) ground-based spectroscopic measurements of the total content (TC) of a number of freons in Russia are presented. According to measurements in Peterhof, TCs of CFC-11 and CFC-12 decrease at a rate of ~0.6% per year and TC of HCFC-22 grows at a rate of ~2.7% per year, which is in good agreement with independent measurements. The seasonal course of freon TC in the area of St. Petersburg is registered: highs of CFC-11 and CFC-12 are observed in summer and lows are in late winter and spring. For the HCFC-22 TC, the opposite seasonal course is observed, with a maximum in winter and a minimum in summer.
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页码：487 / 494
页数：7
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