June 1, 2015 Thesis Open Access

Tegegn Kassa

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    "description": "<p>Baro river basin located in southwest of Ethiopia is a largest sub basin of Baro-Acoobo basin. For the proper utilization and management of groundwater resource in the basin, it required to know its spatial distribution. Hence, geographic information system and remote sensing techniques were used to analyze the groundwater system based on seven selected groundwater influence factors thematic maps. The thematic maps we used were geology, soil, lineament density, drainage density, rainfall distribution, slope and land use maps. Lineament and land use maps were prepared through the process of remote sensing techniques from Landsat 4-5 imagery using ERDAS imagine and PCI Geomatica softwares. Other thematic maps were prepared using Arc GIS 9.3 from DEM and previous prepared soil and geology maps .for each maps weight value was estimated by using PriEst software after assigning weight value of domain effect by using pairwise comparison based on Saaty&rsquo;s analytical hierarchy process. Finally thematic layers were integrated in Arc GIS 9.3 based on estimated weight values. In the basin, four groundwater potential zones were identified; namely: excellent, good, moderate and poor. Excellent groundwater potential zones are associated with areas of alluvial deposition, flat and sand dominant soil group of western part of the basin; north and eastern portion of basin have good and moderate potential zone. Poor potential zone are in areas of mountain areas which have steep slope and high drainage density in center of the basin.</p>", 
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