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Total Ozone Column Variation over Baghdad and Selected Cities in Neighbor Countries | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 20, Issue 3, 2009, Pages 118-130 | ||
| Author | ||
| Ali M. AL-Salihi | ||
| Abstract | ||
| The study was achieved using total ozone data for Baghdad and selected cities in neighbor countries to examine temporal variability by employing statistical analysis. The main aim of present study was to obtain understating of total ozone variability in different time scale for Baghdad (daily and seasonally) and daily variability for other cities. The data presented from Total Ozone Mapping Spectrometer (TOMS) for period (1979-1992) and (1997-2005) were used to study total ozone column for selected locations including Jeddah, Bahrain, Baghdad, Tehran, Aleppo, and Ankara in the range of latitude between 21.5No-39.93No. It was found that total ozone column has temporal variation. The daily total ozone varied between a maximum value of 503DU and 495DU for first and second period over Ankara and a minimum value of 216 DU and 217 DU for first and second period over Jeddah, the maximum annual mean value was 325 DU over Ankara and the minimum annual mean was 268DU over Jeddah, the statistical analysis indicate that the standard deviation for all cities varied between (15.8-39.5) DU. There was clear seasonal cycle with maximum in Spring and minimum in Fall season. Trends calculated for all locations which ranged between (- 0.0221 to -0.0461/ decade) in Jeddah and Ankara respectively for the first period and between (+0.0186 to -0.0187/decade) in Jeddah and Ankara respectively for the second period. | ||
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