Application of remote sensing data in exploration of fractured aquifers in central kajiado area, kenya.

Abstract

A rural groundwater project within the metamorphic and volcanic rock formations in Central Kajiado Area, which is 800km2 in size"was the focus of a research study to develop better borehole siting strategies.The drilling success rate has been low due to low primary porosity and the restriction of groundwater to secondary structural features. Remote sensing data including; Landsat Multispectral Scanner (MSS) imagery and aerialphotography were used to interpret linear vegetation, drainage and bedrock features that would indicate underlying groundwater fracture zones. Lineaments were examined in the field and integrated with information from several geo-referenced boreholes. Data analyses focused on the phenomena that contributed to successful boreholes, in order to develop optimal strategies for future borehole siting.Remote sensing data allowed effective mapping of lineaments features that are conducive to groundwater development. Lineaments interpreted on satellite data and aerialphotography would form a basis for borehole siting in Central Kajiado Area