All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 142 7 0
PDF Downloads 10 2 1

Analytical Solutions for Cloud-Drop Concentration

David B. JohnsonState Water Survey Division, Illinois Institute of Natural Resources, Urbana 61801

Search for other papers by David B. Johnson in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract

This note compares and evaluates the analytical solutions of Squires and Twomey for cloud droplet concentration. Either solution is likely to be fairly accurate (±30%) when the slope parameter (β) of the cloud condensation nuclei distribution is small (β<0.8). For large β errors increase rapidly and both solutions are likely to underestimate the actual drop concentration by a wide margin.

Abstract

This note compares and evaluates the analytical solutions of Squires and Twomey for cloud droplet concentration. Either solution is likely to be fairly accurate (±30%) when the slope parameter (β) of the cloud condensation nuclei distribution is small (β<0.8). For large β errors increase rapidly and both solutions are likely to underestimate the actual drop concentration by a wide margin.

Save