Scavenging Models for Smokes

Report No. ARL-MR-503
Authors: Steven M. Kovel
Date/Pages: February 2001; 20 pages
Abstract: The smoke and obscuration computer model known as the Combined Obscuration Model for Battlefield Induced Contaminants (COMBIC) has the potential for treating the effect of precipitation scavenging as one of the model's input parameters. This report examines the impact of rainfall on the evolution of a white phosphorous (WP) smoke cloud based upon the predictions of the model. The result of the analysis indicates that the effect of precipitation scavenging is less than the error expected in COMBIC predictions. Therefore, the recommendation is not to incorporate more elaborate precipitation models in COMBIC.
Distribution: Approved for public release
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Last Update / Reviewed: February 1, 2001