AN ASSESSMENT OF SEVERITY OF ENVIRONMENTAL AEROSOL PARTICLES DURING PRECIPITATION

Authors

  • T. S. Verma
  • K. S. Madhava Rao
  • Shibu K. John

DOI:

https://doi.org/10.3126/ije.v4i3.13232

Keywords:

Atmospheric aerosols, Biomass, Classification rule, Multinomial model, Precipitation, Severity index

Abstract

Africa is one of the sources of biomass burning emissions. It is estimated that about 6 million tons of fuel per day is consumed in the southern hemisphere. Biomass burning has an important contribution on aerosol particle concentrations in the atmosphere. Efforts have been made to conduct research in Gaborone to monitor the concentration of atmospheric aerosols in atmosphere. These studies were mainly confined to measurement of concentration of aerosols and establishing a relation with determinants such as carbon dioxide concentration, biomass burning, and precipitation among others. However, very little seems to have been done in relating the empirical data to a mathematical model or to study quantitatively the impact of precipitation on the concentration of aerosols larger than 0.3?m in the atmosphere. In this paper we provide an objective criterion for classifying measurements on concentration of atmospheric aerosol particles and build a mathematical model that helps us to understand variations in weekly aerosol concentrations in terms of their severity. We also construct an index of severity which when applied to different seasons under the study period indicates that precipitation significantly scavenges atmospheric aerosols.

International Journal of Environment

Volume-4, Issue-3, June-August 2015

Page: 81-95

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Author Biographies

T. S. Verma

Department of Physics, Gaborone, Botswana

K. S. Madhava Rao

Department of Statistics, University of Botswana

Shibu K. John

Department of Physics, Gaborone, Botswana

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Published

2015-08-24

How to Cite

Verma, T. S., Madhava Rao, K. S., & John, S. K. (2015). AN ASSESSMENT OF SEVERITY OF ENVIRONMENTAL AEROSOL PARTICLES DURING PRECIPITATION. International Journal of Environment, 4(3), 81–95. https://doi.org/10.3126/ije.v4i3.13232

Issue

Section

Research Papers