Groundwater Potential Zone Delineation Using Gis And Remote Sensing Techniques In Sululta And Surrounding Watershed Ethiopia

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Groundwater was recognized as one of the most valuable natural resources, immenselyrnimportant and dependable source of water supply in all climatic region of all over the world. Therngeneral objective of this study was to delineate groundwater potential zones of Sululta andrnSurrounding watershed using Geographical Information Systems and Remote Sensingrntechniques. The present study integrated the thematic layers viz., Geomorphology, geology, soil,rnslope, Land use/Land cover, drainage density, lineament density, rainfall and other relatedrnfeatures to delineate the groundwater potential zones using geo-informatics techniques.rnIntegration of various themes was achieved through the development of a models/assignedrnweightages delineates groundwater potential zone and finally to generate a composite map.rnAbout 20 bore wells yield data had been collected to quantify the yield from groundwaterrnpotential zone map derived from geo-informatics. The final result map was reclassified into fourrngroundwater potential zones by integrating GIS and Remote Sensing techniques and weightedrnoverlay analysis with Analytical Hierarchy Process (AHP) methods. The classifications are veryrnhigh, high, moderate, and low groundwater potential zone. Weight age and ranking scores arernassigned to each thematic layer with respect of influencing rate of water percolation. Finally,rnweight age, multiply by ranking and computed all the multiply values for delineation ofrngroundwater potential zones. The produced result was verified by comparing with the existingrngroundwater borehole databases developed by the Department of Minerals and Geoscience,rnMalaysia (JMG). The results show that there are good agreement between the predictedrngroundwater potential map and the existing groundwater borehole database. The studyrnconcludes that majority of the area covered by very high potential zones as it is supported by thernstatistical data of groundwater borehole wells and the new generated predicted groundwaterrnpotential map. The study suggested that, generated GWPZM will serve as useful guidelines forrnplanners, engineers and decision makers providing quick decision- making in the management ofrngroundwater resources.

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Groundwater Potential Zone Delineation Using Gis And Remote Sensing Techniques In Sululta And Surrounding Watershed Ethiopia

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