Coupling of mesoscale meteorological model with particle trajectory model to study the atmospheric dispersion under sea breeze conditions

A mesoscale meteorological model coupled with a particle trajectory model is used to study the atmospheric dispersion of 41Ar released through a stack of 100 m height continuously at a rate 1 Bq/s under sea breeze conditions. In a trial study, a mesoscale model successfully simulated the sea breeze phenomena observed at Kalpakkam on 22nd September 1992; the isodose and isoconcentration contours revealed that coupling of the mesoscale meteorological model and the particle trajectory model gives realistic simulation of atmospheric dispersion under such conditions.