Assess the impact of the revised warm-rain parameterization in realistic atmospheric simulations

Assess whether the revised analytical warm-rain parameterization has a measurable impact in realistic three-dimensional simulations, including large-eddy, numerical weather prediction, and climate-model applications.

Background

The paper proposes a reformulation of the Seifert and Beheng (2001) warm-rain parameterization by reducing the excessive autoconversion predicted at small rain fractions and removing the empirical suppression of accretion. Although the revised formulation improves trajectory-level agreement with the kinetic collection equation in many tested cases, its practical consequences in fully three-dimensional atmospheric models are not evaluated.

The authors specifically identify realistic large-eddy, numerical weather prediction, and climate simulations as necessary settings for determining whether the revised treatment of autoconversion and accretion produces a measurable improvement over the widely used Seifert and Beheng (2001) scheme.