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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/5726

Title: Airborne dust size analysis for tropospheric propagation of millimetric waves into dust storms
Authors: Ahmed, Abobakr S.
Ali, Adel A.
Alhaider, Mohammed A.
Keywords: Meteorological
Dust storms
Attenuation
Rayleigh approximation
Issue Date: 1987
Publisher: IEEE
Citation: IEEE Transactions on Geoscience and Remote Sensing: GE-25(5)
Abstract: This paper presents a study of five dust storms that occurred in Riyadh together with their effect on millimeter-wave propagation. Meteorological parameters are given and airborne-dust's permittivity is estimated using relative humidity data. For large particles, the size distribution and its height dependence are investigated experimentally and the findings are presented as a functional relationship. Based on actual measurements and analysis, attenuation at 37 GHz is calculated using a newly derived expression in terms of optical visibility as a storm parameter. It is found that the fitted probability distributions are best described by normal or lognormal and vary with duststorm conditions. The average effective sizes and the 37-GHz attenuation decreases with the increase of antenna height following a power law.
URI: http://hdl.handle.net/123456789/5726
ISSN: 0196/2892/87/0900-0593
Appears in Collections:College of Engineering

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