Vol. 18, issue 07, article # 12

pdf Zuev V. V., Belan B. D., Zueva N. E., Inoue Gen., Machida Toshinobu. Correlation between carbon dioxide sink from the atmosphere over Siberian boreal forests and variations of the ozonosphere. // Atmospheric and oceanic optics. 2005. V. 18. No. 07. P. 555-557.
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The results of seven-year monthly airborne monitoring of the СО2 concentrations at heights of 0.5, 1, 1.5, 2, 3, 4, 5.5, and 7 km, carried out during flights of the Optik-E flying laboratory of IAO SB RAS since 1997, are presented. The results show a steady growth of the СО2 content in the atmosphere over Siberian taiga from year to year despite the fact that the intensity of industrial emissions was not high in this period. The annual variations of the СО2 content with minimal values in summer are related with the changes in the activity of photosynthesis, peaking in the summer period. We compare annual variations of total ozone content (TOC) for the region of airborne measurements for two summer months (June and July) with the СО2 concentrations at all heights. The correlation between СО2 and TОC in these months was found to be the highest for a height of 1.5 km. It reached 94%, indicating that the photosynthetic sink of СО2 to dark coniferous forests of Siberia strongly depends on TОC variations, governing the level of the UV-B radiation