Application of remote-sensing data to groundwater exploration: A case study of the Cross River State, southeastern Nigeria

摘要: The Cross River State, Nigeria, is underlain by the Precambrian-age crystalline basement complex and rocks of Cretaceous to Tertiary age. exploration for groundwater in this area requires a systematic technique order obtain optimum results, but non-availability funds facilities has made it extremely difficult carry out site investigations prior drilling water wells. Therefore, failure rate as high 80%. In delineate areas that are expected be suitable future development, black white radar imagery aerial photographs were used define some hydrological hydrogeological features parts study area. Lineament drainage patterns analysed using length density frequency. Lineament-length ranges from 0.04–1.52; lineament frequency 0.11–5.09; drainage-length 0.17–0.94, 0.16–1.53. These range values reflect differences probability potentials. Results then high, medium, low potential. Study results also indicate correlations exist between patterns, lithology, temperature, conductivity, well yield, transmissivity, longitudinal conductance, occurrence groundwater.