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A Parameterisation for the Activation of Cloud Drops Including the Effects of Semi-volatile Organics : Volume 14, Issue 5 (04/03/2014)

By Connolly, P. J.

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Book Id: WPLBN0003993679
Format Type: PDF Article :
File Size: Pages 14
Reproduction Date: 2015

Title: A Parameterisation for the Activation of Cloud Drops Including the Effects of Semi-volatile Organics : Volume 14, Issue 5 (04/03/2014)  
Author: Connolly, P. J.
Volume: Vol. 14, Issue 5
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Topping, D. O., Connolly, P. J., Mcfiggans, G., & Malavelle, F. (2014). A Parameterisation for the Activation of Cloud Drops Including the Effects of Semi-volatile Organics : Volume 14, Issue 5 (04/03/2014). Retrieved from

Description: School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, Manchester, UK. We present a parameterisation of aerosol activation, including co-condensation of semi-volatile organics, for warm clouds that has applications in large-scale numerical models. The scheme is based on previously developed parameterisations that are in the literature, but has two main modifications. The first is that the total aerosol mass is modified by the condensation of organic vapours entering cloud base, whereas the second is that this addition of mass acts to modify the median diameter and the geometric standard deviation of the aerosol size distribution. It is found that the scheme is consistent with parcel model calculations of co-condensation under different regimes. Such a parameterisation may find use in evaluating important feedbacks in climate models.

A parameterisation for the activation of cloud drops including the effects of semi-volatile organics

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