Two-Dimensional Interpolation Polynomial Method for Modelling Ground Water Hydraulic Head at Nariya Area of Kaduna, Nigeria

Abstract

Abstract. This paper presents the result of a two-dimensional model for predicting groundwater hydraulic head in Nariya Village, Kaduna, Nigeria. Vertical Electrical Sounding (VES) was employed in investigating the subsurface water level at six different points (500m to 1km apart), and the result obtained was used to fit a two-dimensional polynomial, using Mathcad 14, which satisfactorily predicted the groundwater hydraulic head at other locations on the site. Surface and Piezometric surface contour maps were plotted using the polynomial with Maple 14 software, and the modeled result showed good agreement with the interpreted field data with less than 4% error margin.