期刊名称：Journal of Geography, Environment and Earth Science International
印刷版ISSN：2454-7352
出版年度：2016
卷号：8
期号：3
页码：1-10
DOI：10.9734/JGEESI/2016/30266
语种：English
出版社：Sciencedomain International
摘要：The morphometric analysis of the drainage basin and channel network plays a vital role for understanding the geo-hydrological behavior of drainage basin and its implication on flood. Besides the primary aim of studying drainage basin as a geographical unit in order to understand its hydrological nature, this study examined the morphometric characteristics of Oba river drainage basin in the South-west of Nigeria with the use of GIS in order to evaluate the implication of the morphometric characteristics on flood potential in the study area. The basin was found to be of 6th order where the total length of streams was 2754.48 km, total number of streams was 2979, basin area and perimeter were 2494.45 km2 and 291 km respectively while the basin length was 96.1km. The detailed morpometry results obtained in the study, to a significant extent, were found to be helpful for determining the tendency for flood events in the watershed.
关键词：Morphometry;watershed;Oba river basin;remote sensing;Geographic Information System (GIS);flood
