Efficient Determination of Cloud Drop Number Concentration Near the Cloud Base With Parameterization Based on Fundamental Theory and Parcel Model Simulations
Journal
Journal of Geophysical Research: Atmospheres
Journal Volume
124
Journal Issue
12
Pages
6467-6483
Date Issued
2019
Author(s)
Abstract
Abstract An effective parameterization scheme for determining the maximum cloud drop number concentration near the cloud base under given updraft speeds was developed based on a theoretical analysis of the supersaturation development equation with key factors determined from a binned microphysical parcel model. This scheme is mathematically quite straightforward and can be applied to condensation nuclei of any composition and size spectrum. The accuracy of this method is comparable with the most advanced schemes currently available, but it features considerably higher computational efficiency. Sources of error or uncertainty in our scheme are discussed in details.
Type
journal article