Author(s)

Osvaldo L.L. Moraes, Marcelino Ferro, Rita C.M. Alves and Tiziano Tirabassi

Abstract

The behaviour of spectra of turbulence in the surface layer is used to estimate the vertical eddy diffusivity coefficient in order to describe the dispersion of pollutant emitted by a thermoelectric power plant located in the south of Brazil. The simulation of the transport of the material is done with an analytical solution of advection-diffusion equation. The meteorological inputs for this model were obtained in field campaigns conducted in the region. The data set analysed comprised twenty-four hours of turbulence measurements. The results of the model are compared with results obtained by the same model but using different parameterization for the eddy difiusivity coefficient. 1 Introduction

Keywords