On the impact of temperature on tropospheric ozone concentration levels in urban environments |
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| Authors: | E Stathopoulou G Mihalakakou M Santamouris H S Bagiorgas |
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| Institution: | (1) Department of Physics, Division of Applied Physics, Laboratory of Meteorology, University of Athens, University Campus, Build. Phys. V, 157 84 Athens, Greece;(2) Department of Environmental and Natural Resources Management, University of Ioannina, 2 G. Sepheri Str., 30100 Agrinio, Greece |
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| Abstract: | The influence of temperature on tropospheric ozone (O3) concentrations in urban and photochemically polluted areas in the greater Athens region are investigated in the present
study. Hourly values of the ambient air temperature used for studying the urban heat island effect in Athens were recorded
at twenty-three experimental stations while ozone concentration values were measured at three of the above-mentioned stations
and for a period of two years (1996–1997). The linear correlation between ozone concentration and air temperature values as
well as the temporal variation of temperature and ozone concentration, for the above-mentioned experimental stations, were
calculated and analysed. Moreover, a neural network approach was used for investigating the impact of temperature on the ozone
concentration values over the greater Athens area. The neural network model used ambient air temperature as one of its input
parameters and it was found that temperature is a predominant parameter, affecting considerably the ozone concentration values. |
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| Keywords: | Tropospheric ozone urban environment neural network models |
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