Modeling Trends of Temperature Effects on Water Level of Rivers in N/E Nigeria

Dammo, M. N., Yadima S.G, Sangodoyin, A.Y


This study investigates temperature variabilities in N/E Nigeria using observations of temperature (0C) from 6 stations from 1981-2010 (30years). Trends in annual and seasonal temperature series were modeled using Mann-Kendall test. The analysis revealed  significantly higher (P<0.01) in April compare to all the other months with overall  mean temperature ranged between 20.2 - 31.80C among all the locations  over months and years. There was significant increase of 0.380C (positive trend) in temperature in all studied area except Taraba. Each degree rise of temperature of 0.740C (Gombe), 0.120C (Adamawa), 0.380C (Yobe), 0.530C (Borno) and 0,690C (Bauchi) and decrease 2.050C (Taraba) lead to a reduction and increase in water level by 78.77, 19,10, 74.26, 79.62, 20.65 and 209.29 mm  respectively. Analyses of decadal trends in the time series further suggest a sequence of alternately decreasing and increasing trends in mean annual temperature in Nigeria during the study period.

Keywords: Modeling, Temperature, Water Level, Rivers, N/E Nigeria.

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ISSN (Paper)2224-5790 ISSN (Online)2225-0514

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