Abstract
Temporal Variation of Reference Evapotranspiration in Lower River Kaduna Catchment Area, Nigeria
Highlights
The lower river Kaduna catchment area mighty be associated with the climate change [6] such as the high rainfall variability annually which result in drought, crop failures and reduced yields, flash floods, desertification, [6], groundwater shrinking and surface water subject to high evaporative losses and insufficient to meet the water demand [7]
The coefficient of variance which measures the variability of the climate elements, the Rs, Tmean and ET data set in the studies accounts for more than 0.1 coefficient of variance, which indicated moderate variability (CV > 0.1 or 10% and < 0.9 or 90%)
The increased mean temperature in this study shows a similarities with the other studied such as [22,23], they revealed that there is an increase in temperature in Nigeria, [24], reported that, there is an increase in temperature in the semi-arid region of Sokoto, Katsina, Kano, Nguru and Maiduguri, and [19] reported that Kaduna state experienced a positive trend in mean temperature
Summary
The lower river Kaduna catchment area mighty be associated with the climate change [6] such as the high rainfall variability annually which result in drought, crop failures and reduced yields, flash floods, desertification, [6], groundwater shrinking and surface water subject to high evaporative losses and insufficient to meet the water demand [7]. This implies that, change in climate have significant impact on the availability of water resources [8, 9]. This research intends to bridge this gap, which aimed to estimate the ET in lower River Kaduna catchment so as to assess it temporal variation
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