Determination of volume and direction of flow of Kainji Reservoir using hydro-geomatics techniques

M.O. Ehigiator, O.S. Oladosu, I.R. Ehigiator–Irughe
2018 Nigerian Journal of Technology  
Determination of volume and direction of flow of river plays a key role in determining the direction of transported materials to the downstream. Bathymetry survey which incorporate sounding to determine the depths with respect to a known bench mark together with coordinates of points referenced to a minimum of two horizontal controls are enough to fix position of points aboard a boat traversing a river during field work. In this paper, MIDAS Echo Sounder and Trimble Dual Frequency GPS was used
more » ... or data acquisition. Data analysis was done with the aid of Surfer golden software. The results obtained showed a computed volume of 13200456.595Mm 3 , 13226766.629Mm 3 and 13209519.223Mm 3 for the reservoir using trapezoidal, Simpson's and Simpson's 3/8 rules respectively. A contour map, 3D wireframe map overlaid with grid vector maps of the river bed were produced to create a 3D effect of Kainji reservoir flow direction. A depth of 23.50m was obtained during the sounding field operation.
doi:10.4314/njt.v36i4.3 fatcat:qcgt5ntibnegtj4ipaaeuwyuue