Title: The role of temperature in tropospheric ozone

Authors: Sara Ortega, M. Rosa Soler, Marta Alarcon, Raul Arasa

Addresses: Departament de Fisica i Enginyeria Nuclear, Universitat Politecnica de Catalunya, Av/Victor Balaguer s/n, 08800 Vilanova i la Geltru, Spain. ' Facultat de Fisica, Departament d'Astronomia i Meteorologia, Universitat de Barcelona, c/Marti I Franques 1, 08028 Barcelona, Spain. ' Departament de Fisica i Enginyeria Nuclear, Universitat Politecnica de Catalunya, Av/Victor Balaguer s/n, 08800 Vilanova i la Geltru, Spain. ' Facultat de Fisica, Departament d'Astronomia i Meteorologia, Universitat de Barcelona, c/Marti I Franques 1, 08028 Barcelona, Spain

Abstract: After evaluating some meteorological simulations, we detect an error of over 5°C in surface temperature. In order to assess the effect of this anomaly in temperature, we perform new simulations of an emission model and a photochemical model using the correct surface temperature in the meteorological data. Our goal is not to solve the problem in surface temperature estimates, but to reveal how it affects the air quality model. Our results show an increase in some maximum daily ozone levels, but they do not reveal any important change in the global pattern of ozone concentrations.

Keywords: air quality models; emission modelling; tropospheric ozone; surface temperature; MM5; CMAQ; sensitivity; validation; photochemical modelling; air pollution.

DOI: 10.1504/IJEP.2011.038426

International Journal of Environment and Pollution, 2011 Vol.44 No.1/2/3/4, pp.261 - 270

Published online: 07 Feb 2011 *

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