Hydrology: Current Research

ISSN: 2157-7587

Open Access

Yahaya Olotu

Department of Agricultural and Bio-Environmental Engineering, Auchi Polytechnic, Auchi, Nigeria

  • Research Article   
    Experimental Study of Rainfall-Runoff Process under a Calibrated Rainfall Simulator
    Author(s): Yahaya Olotu*, A. A. Rodiya and P. A. Adekunle

    The relationship between rainfall-runoff is a complex hydrological process that requires technical-based approaches to investigate and understand the interaction of the hydrological variables. A calibrated rainfall simulator was developed to produce storms at seven (7) predetermined Rainfall Intensities (RIs) over two (2) Runoff Plots (RP). The Runoff Plot (RPA) is 0.72 m2 and RPB is 0.5 m2 was each inserted 0.3 m into the bare sandy loam. The results of the experimentation showed the first Rainfall Simulation Attempt (RSA) of RI value of 10.8 mm/hr was totally lost to infiltration without generation of surface runoff from the two runoff catchment plots. Subsequently, the RSA generated varying Surface Runoff Intensities (SRI) and with RPB producing higher SRI and volume compared to large catchment plots (RPA). Conversely, the relationship of rainfall-runoff showed co-linearity between th.. Read More»
    DOI: DOI: 10.37421/2157-7587.2022.13. 399

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