Civil and Environmental Research
Observed Trend of Changes in Relative Humidity Across North-East Nigeria (1981-2010)
Abstract
Monthly relative humidity (RH) data for 6 stations in North-east Nigeria were provided by the Nigeria Meteorological Agencies. Mean RH variabilities, and trends calculated by the Mann-Kendal method are analyzed. The annual regional mean of RH ranged between 47.5±20.6%, with a clear maximum (62.5%) in Taraba and minimum (36.9%) in Borno. Extensive analyses of trends in mean monthly and annual relative humidity were examined for north-east Nigeria, for the period 1981 to 2010. Regression and analysis of variance were used to illustrate trends and calculate mean and annual rate of change. Results showed an inconsistent pattern of trend and a statistically significant stable increase in RH across locations.
Keywords: Trend, Changes, Relative humidity, North-east Nigeria
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ISSN (Paper)2224-5790 ISSN (Online)2225-0514
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