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Modeling pollutant dispersion within a tornadic thunderstorm

Abstract

A three-dimensional numerical model has been developed to calculate ground-level air concentration and deposition of particles entrained in a tornadic thunderstorm. The rotational characteristics of the tornadic storm are within the larger mesoscale flow of the storm system and transported with the vortex. Turbulence exchange coefficients are based on empirical values. The quasi-Lagrangian method of moments is used to model the transport of concentration within a grid cell volume. Results indicate that updrafts and downdrafts, coupled with scavenging of particles by precipitation, account for most of the material being deposited closer to the site than anticipated. Approximately 5% of the pollutant is dispersed into the stratosphere.
Authors:
Publication Date:
Jan 01, 1982
Product Type:
Journal Article
Reference Number:
ERA-08-027439; EDB-83-078553
Resource Relation:
Journal Name: Sci. Total Environ.; (Netherlands); Journal Volume: 23
Subject:
54 ENVIRONMENTAL SCIENCES; PARTICULATES; DEPOSITION; DIFFUSION; TORNADOES; RADIONUCLIDE MIGRATION; AIR POLLUTION; LAGRANGIAN FUNCTION; MATHEMATICAL MODELS; PLUMES; PLUTONIUM; PRECIPITATION SCAVENGING; STRATOSPHERE; THREE-DIMENSIONAL CALCULATIONS; TURBULENCE; ACTINIDES; DISASTERS; EARTH ATMOSPHERE; ELEMENTS; ENVIRONMENTAL TRANSPORT; FUNCTIONS; MASS TRANSFER; METALS; PARTICLES; POLLUTION; SEPARATION PROCESSES; STORMS; TRANSURANIUM ELEMENTS; WIND; 500300* - Environment, Atmospheric- Radioactive Materials Monitoring & Transport- (-1989)
OSTI ID:
6379596
Research Organizations:
E.I. du Pont de Nemours and Co., Aiken, SC
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: STEVA
Submitting Site:
HEDB
Size:
Pages: 151-162
Announcement Date:

Citation Formats

Pepper, D W. Modeling pollutant dispersion within a tornadic thunderstorm. Netherlands: N. p., 1982. Web. doi:10.1016/0048-9697(82)90131-0.
Pepper, D W. Modeling pollutant dispersion within a tornadic thunderstorm. Netherlands. doi:10.1016/0048-9697(82)90131-0.
Pepper, D W. 1982. "Modeling pollutant dispersion within a tornadic thunderstorm." Netherlands. doi:10.1016/0048-9697(82)90131-0. https://www.osti.gov/servlets/purl/10.1016/0048-9697(82)90131-0.
@misc{etde_6379596,
title = {Modeling pollutant dispersion within a tornadic thunderstorm}
author = {Pepper, D W}
abstractNote = {A three-dimensional numerical model has been developed to calculate ground-level air concentration and deposition of particles entrained in a tornadic thunderstorm. The rotational characteristics of the tornadic storm are within the larger mesoscale flow of the storm system and transported with the vortex. Turbulence exchange coefficients are based on empirical values. The quasi-Lagrangian method of moments is used to model the transport of concentration within a grid cell volume. Results indicate that updrafts and downdrafts, coupled with scavenging of particles by precipitation, account for most of the material being deposited closer to the site than anticipated. Approximately 5% of the pollutant is dispersed into the stratosphere.}
doi = {10.1016/0048-9697(82)90131-0}
journal = {Sci. Total Environ.; (Netherlands)}
volume = {23}
journal type = {AC}
place = {Netherlands}
year = {1982}
month = {Jan}
}