Annual Patterns of Atmospheric Pollutions and Episodes over Cairo Egypt

Advances in Meteorology - Tập 2013 - Trang 1-11 - 2013
Y. AboEl Fetouh1, Hesham El‐Askary2,3,4, M. El Raey1, Mohamed Allali5, William A. Sprigg4, M. Kafatos2
1Institute of Graduate Studies and Research (IGSR), Alexandria University, Alexandria, Egypt
2Center for Excellence in Earth Observing, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
3Department of Environmental Sciences, Faculty of Science, Alexandria University, Moharem Bek, Alexandria, 21522, Egypt
4School of Earth and Environmental Sciences, Schmid College of Science and Technology, Chapman University, Orange, CA 92866, USA
5School of Computational Sciences, Schmid College of Science and Technology, Chapman University, Orange, CA 92866, USA

Tóm tắt

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.

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Advances in Meteorology

Tập 2013

1-11

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