Evaluation of Spatial Distribution and Seasonal Variations of Total Ozone Column and its Relationship with Atmospheric Parameters


Authors : Audu, M.O; Okeke F. N; Ejembi, E

Volume/Issue : Volume 6 - 2021, Issue 6 - June

Google Scholar : http://bitly.ws/9nMw

Scribd : https://bit.ly/3iKhui7

From literature, evidence exist that ozone and climate have influence on one another. Understanding the dynamism for this interaction is however, an open research area. In this paper, attempts have been made to study this dynamical effect; employing daily data of Total Ozone Column (TOC) and atmospheric parameters for some stations in Nigeria. The period under study spanned through 12 year (1998 – 2009). Descriptive and bivariate statistics were used in data analyses employing XLSTA and ArcGIS software. Results revealed that TOC varied spatially from the coastal region to the northern region, having similar distribution with maximum temperature, sunshine hour and wind speed, in contrast to rainfall and relative humidity. The observed spatial distribution exhibited elevation and latitudinal dependence. Seasonally, TOC recorded high values between April – October which coincided with the period of rainy season; when rainfall and relative humidity recorded high values, while maximum temperature and sunshine hour were very low during this period. The reverse is the case during dry season (November – March). This depicts that TOC has similar variation pattern with rainfall and relative humidity while it varied in opposite direction with maximum temperature and sunshine hour. We tend to attribute our observation to rain producing mechanism and atmospheric phenomena. The findings of this study suggests that two parameters can varies spatially, having similar spatial pattern but varies seasonally in opposite direction. Generally, significant relationship was observed between TOC and atmospheric parameters, depicting the interconnectivity between ozone and climate. This study has confirmed the results of previous findings and has equally given more information which is useful to climatologists and meteorologists.

Keywords : Atmospheric Parameters; Earth’s Atmosphere; Spatial and Seasonal Variations; Total Ozone Column; Nigeria

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