Analysis of Mixing Ratios of Greenhouse Carbon-Containing Gases at the Atmospheric Monitoring Station of St. Petersburg State University

IF 0.9 Q4 OPTICS Atmospheric and Oceanic Optics Pub Date : 2024-04-26 DOI:10.1134/S1024856023700094

S. Ch. Foka, M. V. Makarova, A. V. Poberovsky, D. V. Ionov, E. V. Abakumov

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Abstract

In order to study temporal variations in the mixing ratios of greenhouse carbon-containing gases and factors influencing them, local measurements of CO₂, CH₄ (January 2013–January 2020), and CO (January 2013–January 2019) mixing ratios in atmospheric air at the monitoring station of St. Petersburg State University are analyzed taking into account trends and seasonal fluctuations. Linear trends for CO₂, CH₄, and CO, which are 2.42 ppm/year (0.60%), 8.6 ppb/year (0.49%), and −3.8 ppb/year (−2.2%), respectively, are in a good agreement with independent estimates of both global/background changes and changes in urban areas. The analysis of the CO/CO₂ emission ratio confirmed that motor vehicles are the dominant anthropogenic source affecting the composition of atmospheric air near the monitoring station of St. Petersburg State University. The results can be used for validation of atmospheric models and independent estimation of greenhouse gas fluxes.

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圣彼得堡国立大学大气监测站含碳温室气体混合比分析

摘要为了研究温室含碳气体混合比的时间变化及其影响因素，分析了圣彼得堡国立大学监测站对大气中 CO2、CH4（2013 年 1 月至 2020 年 1 月）和 CO（2013 年 1 月至 2019 年 1 月）混合比的本地测量值，并考虑了趋势和季节波动。二氧化碳、甲烷和一氧化碳的线性变化趋势分别为 2.42 ppm/年（0.60%）、8.6 ppb/年（0.49%）和-3.8 ppb/年（-2.2%），与全球/背景变化和城市地区变化的独立估计值非常一致。对 CO/CO2 排放比的分析证实，机动车是影响圣彼得堡国立大学监测站附近大气成分的主要人为来源。研究结果可用于验证大气模型和独立估算温室气体通量。

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来源期刊

Atmospheric and Oceanic Optics OPTICS-

CiteScore

2.40

自引率

42.90%

发文量

期刊介绍： Atmospheric and Oceanic Optics is an international peer reviewed journal that presents experimental and theoretical articles relevant to a wide range of problems of atmospheric and oceanic optics, ecology, and climate. The journal coverage includes: scattering and transfer of optical waves, spectroscopy of atmospheric gases, turbulent and nonlinear optical phenomena, adaptive optics, remote (ground-based, airborne, and spaceborne) sensing of the atmosphere and the surface, methods for solving of inverse problems, new equipment for optical investigations, development of computer programs and databases for optical studies. Thematic issues are devoted to the studies of atmospheric ozone, adaptive, nonlinear, and coherent optics, regional climate and environmental monitoring, and other subjects.