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Towards a new scheme for parametrisation of deep convection in NAME III
by Elena Meneguz; David J. Thomson
International Journal of Environment and Pollution (IJEP), Vol. 54, No. 2/3/4, 2014


Abstract: This paper describes an updated scheme for parametrisation of atmospheric convection to be used in the Met Office Atmospheric Dispersion Model (NAME III). In this scheme, the vertical transport of particles due to convection is represented in a 1-dimensional model based on a 'mass-flux' approach. Empirical formulas are used to obtain the mass fluxes and the convective precipitation is used for closure. Results compared with the mass fluxes from the single column version of the Met Office's NWP model show good agreement. Lastly, an alternative method to estimate the mass fluxes by calculating a dilute parcel ascent is also discussed.

Online publication date: Mon, 13-Oct-2014


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