Efficiencies Accepted Article

Freeman, S. W., A. L. Igel, and S. van den Heever (2019), Efficiencies Accepted Article, Q. J. R. Meteorol. Soc., doi:10.1002/qj.3550.

Rainfall prediction by weather forecasting models is strongly dependent on the microphysical parameterization being utilized within the model. As forecasting models have become more advanced, they are more commonly using double-moment bulk microphysical parameterizations. While these double-moment schemes are more sophisticated and require fewer a priori parameters than single moment parameterizations, a number of parameter values must still be fixed for quantities that are not prognosed or diagnosed. Two such parameters, the width of the rain drop size distribution and the choice of collection efficiencies between liquid hydrometeors, are examined here. Simulations of deep convective storms were performed in which the

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