Annual Patterns of Atmospheric Pollutions and Episodes over Cairo Egypt

The Nile Delta major cities, particularly Cairo, experienced stagnant air pollution episodes, known as Black Cloud, every year over the past decade during autumn. Low-elevated thermal inversion layers play a crucial role in intensifying pollution impacts. Carbon monoxide, ozone, atmospheric temperat...

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Bibliographic Details
Published in:Advances in Meteorology 2013-01, Vol.2013 (2013), p.220-230-123
Main Authors: Aboel Fetouh, Y., El-Askary, Hesham, El Raey, M., Allali, M., Sprigg, W. A., Kafatos, M.
Format: Article
Language:English
Subjects:
Air pollution
Analysis
Brackish
Carbon monoxide
Clouds
Deltas
Demographic aspects
Inversion layers
Ozone
Time series analysis
Water vapor
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Summary:The Nile Delta major cities, particularly Cairo, experienced stagnant air pollution episodes, known as Black Cloud, every year over the past decade during autumn. Low-elevated thermal inversion layers play a crucial role in intensifying pollution impacts. Carbon monoxide, ozone, atmospheric temperature, water vapor, and methane measurements from the tropospheric emission spectrometer (TES) on board the Aura have been used to assess the dominant component below the inversion layer. In this study, time series analysis, autocorrelations, and cross correlations are performed to gain a better understanding of the connections between those parameters and their local effect. Satellite-based data were obtained for the years 2005–2010. The parameters mentioned were investigated throughout the whole year in order to study the possible episodes that take place in addition to their change from year to year. Ozone and carbon monoxide were the two major indicators to the most basic episodes that occur over Cairo and the Delta region.
ISSN:1687-9309
1687-9317
DOI:10.1155/2013/984853