Groundwater Flow Modelling of Two Wetlands in Northern Bida-Basin Nigeria
Authors: *Sidi, A.A., Okunlola, I.A. And Waziri, N.M.
DOI Info: http://doi.org/10.5281/zenodo.10442714
ABSTRACT
Two wetlands in northern Bida-Basin were studied for their groundwater flow. The wetlands are important agricultural zones on which shallow aquifers have been exploited. Water level measurements were carried out with the aid of a dip-meter in seventy-seven (77) wells, including forty-three (43) from parts of Bida and thirty-three (33) from parts of Egbako sheets respectively. The collected elevation data and coordinates of each well were used to derive the hydraulic heads in the wells for the regional modelling of groundwater flow at both locations. Low hydraulic head values of 77.5 m at Emi-Yagi and environs and 24.9 m at Gogata and environ and high hydraulic head values of 138.5 m at Zanagi and environ and at Pati-Gbadafu respectively for parts of Bida and Egbako were recorded. They are the recharge and discharge zones expected to indicate the areas of contaminant greatest impact and contaminant less impact within the two wetlands respectively. Groundwater flow direction seems to be from both the east and west with a convergence in the SW area in Egbako sheet. In the part of Bida sheet, the main flow direction appears to be from the NW and NE with a groundwater gradient observed along the flow path.
Affiliations: Department of Geology and Mining, Faculty of Applied Sciences and Technology, Ibrahim Badamasi Babangida University Lapai, Niger State, Nigeria.
Keywords: Groundwater Flow, Hydraulic Head, Contaminant Transport, Bida Basin, Nigeria
Published date: 2023/12/30
