Estimation of Nocturnal Area Fluxes of Carbon Cycle Gases in Saint Petersburg Suburbs

M. V. Makarova, D. K. Arabadzhyan, S. Ch. Foka, N. N. Paramonova,
A. V. Poberovskii, Yu. M. Timofeev, N. V. Pankratova, and V. S. Rakitin

Carbon dioxide, methane, and carbon monoxide are the carbon cycle gases, the data on their emissions are needed when monitoring air pollution and developing methods for reducing anthropo- genic emissions to the atmosphere and for climate forecasting. The estimates of nocturnal area fluxes for CO2, CH4, and CO presented for a suburb of Saint Petersburg (Peterhof) are obtained using the box model and continuous observations of concentration of these gases. The mean values of CH4, CO2, and CO fluxes estimated for Peterhof for 2014–2015 are 44 27, 6100 4000, and 90 100 t/(km2 year), respectively. The intensity of the CO area flux has pronounced seasonal variations characterized by the maximum of ~(160 120) t/(km2 year) in November–February and by the minimum of ~(30 20) t/(km2 year) in June–July. The analysis of the ratio of CO/CO2 fluxes identified the main types of anthropogenic sources typical of Peterhof: motor transport, natural gas combustion, and the use of wood stoves for the heating of private low-rise buildings (in the cold season).

Joomla templates by a4joomla