Journal of Pollution Effects & Control

Journal of Pollution Effects & Control
Open Access

ISSN: 2375-4397

Abstract

Detection of Dust pollution using a Ka-Band Doppler Radar in a Tropical Location of West Africa

Ayodeji Oluleye*, Joseph Sunday Ojo

Apart from posing as leading cause of respiratory ailment, dust pollution over West Africa is known to hamper
flight operations by reducing visibility during the dry season. Inspection of visibility is usually made through visual
observation by meteorological observer, it accurate estimation therefore depends on the visual judgment of the
observer. Also profile observations of atmospheric dust are not included in visibility record of meteorological
stations. Much of the dust load in the atmosphere is held up in a layer above the surface which could descend to
ground level resulting into poor visibility or lifted leading to clearance. In this paper, a method of dust pollution
detection using radar reflectivity has been developed. Through this method, atmospheric dust load could be
estimated and converted to visibility. Results of comparison between radar-derived visibility and observation show a
good agreement with correlation coefficient of 0.81. Consequently, dust load beyond the reach of visual observation
could be made enhancing atmospheric dust load prediction for aviation and health purpose among others.

Published Date: 2020-04-16; Received Date: 2020-03-16

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