Abstract Total column amounts (TCAs) of various climatically important atmospheric gases have been determined in Peterhof for the period between 2009 and 2018. These measurements were performed using a Bruker 125HR ground-based IR Fourier transform spectrometer, which registered the spectra of direct solar radiances. We estimated the trends for TCAs of 13 climatically important gases for the first time in Russia. For nine of them, these estimates are reliable. Trends of the main greenhouse gases, CO 2 , CH 4 , and N 2 O, determined with high accuracy (~0.02%), are positive and equal 0.52, 0.42, and 0.28% per year, respectively. The comparison of methane trend estimates with earlier ones demonstrates that in recent years the trend of methane TCAs near St. Petersburg has been increased. Moreover, we observe the negative trends in TCAs of tropospheric ozone (–0.75 ± 0.56% per year), CFC-11 and CFC-12 (~–0.5–1.0% per year), and ClONO 2 (–2% per year). Trends for HF and HCFC-22 TCAs near St. Petersburg are positive, providing ~1–2% per year.

中文翻译：

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对圣彼得堡附近具有重要气候意义的大气气体趋势的估计

摘要 2009 年至 2018 年期间，彼得霍夫 (Peterhof) 确定了各种具有重要气候意义的大气气体的总柱量 (TCA)。 . 我们首次在俄罗斯估算了 13 种重要气候气体的 TCA 趋势。对于其中九个，这些估计是可靠的。以高精度 (~0.02%) 确定的主要温室气体 CO 2 、CH 4 和 N 2 O 的趋势为正值，分别为每年 0.52、0.42 和 0.28%。甲烷趋势估计值与早期估计值的比较表明，近年来圣彼得堡附近甲烷 TCA 的趋势有所增加。而且，我们观察到对流层臭氧（每年–0.75 ± 0.56%）、CFC-11 和CFC-12（每年–0.5–1.0%）和ClONO 2（每年–2%）的TCAs 的负面趋势。圣彼得堡附近 HF 和 HCFC-22 TCA 的趋势是积极的，每年提供约 1-2%。