EFFECT OF FLOAT-WEIGHTS ON DISCHARGE MEASUREMENT

• Abayomi Olayiwola Eruola

  Federal University of Agriculture, Abeokuta

• Akeem Makinde

  Federal University of Agriculture, Abeokuta

• Gbenga Adegboyega Eruola

  Federal University of Agriculture, Abeokuta

• Kolawole Ayoola

  Federal University of Agriculture, Abeokuta

• Lugard Nwamini

  Federal University of Agriculture, Abeokuta

The use of float method of discharge measurement information in rivers is vital for hydrological analysis, though there is no specific information on the choice of float material to be used for the measurement. A comparison of four float materials having different weight for estimation of stream discharge was carried out on Apakula stream in Ogun State, Southwestern Nigeria. Depth and width measurements were carried out by means of a canoe, ropes and graduated metal rod. Velocity measurement was carried out by means of Table tennis egg, Orange, 0.5 and 1 liter plastic bottle partially filled with water and a stop clock. Ten different measurements were carried out at various locations along the river. Data were subjected to one – way ANOVA using the Genstat statistical package discovery edition 3 to determine the weekly mean and standard deviation of estimated discharge records for the stream. Results show significant difference (p < 0.05) in discharge measured with varying weight of floats. It was observed that though the pattern of discharge measured values were similar in all the selected float weight, the discharge increases with decreasing weight of float.

1. Akeem Makinde, Federal University of Agriculture, Abeokuta

   Senior Lecture

   Department of Water Resources Management and Agrometeorology

    

2. Gbenga Adegboyega Eruola, Federal University of Agriculture, Abeokuta

   Post Graduate Student

   Department of Physics

    

3. Kolawole Ayoola, Federal University of Agriculture, Abeokuta

   Senior Technologist

   Department of Water Reources Management and Agrometeorology

4. Lugard Nwamini, Federal University of Agriculture, Abeokuta

   Post graduate student

   Department of Water Resources Management and Agrometeorology

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