000029755 001__ 29755
000029755 041__ $$aEnglish
000029755 100__ $$aBabu, K. J.
000029755 245__ $$aImplication of Drainage Basin Parameters of a Tropical River Basin of South India
000029755 269// $$cJuly 2014
000029755 260__ $$c2014
000029755 300__ $$a1-9
000029755 520__ $$aDrainage morphometry provides quantitative description of the drainage system which is an important aspect of the characterisation of watersheds. Chalakudi River is one of the important rivers of the South India which has attracted attention of many environmental scientists recently because of the proposed Athirapally Hydel Project across the river. SRTM (Shuttle Radar Topographic Mission) data were used for preparing DEM (Digital Elevation Model), Aspect Map and Slope Map. Geographical Information System (GIS) was used for the evaluation of linear, areal and relief aspects of morphometric parameters. The study reveals that the terrain exhibits dentritic and trellis pattern of drainage. The Chalakudi River Basin has a total area of 1,448.73 km2 and is designated as seventh-order basin. The drainage density of the basin is estimated as 2.54 and the lower-order streams mostly dominate the basin. The high basin relief indicates high runoff and sediment transport. The elongation ratio of the Chalakudi Basin is estimated as 0.48 and indicates that the shape of the basin is elongated. The development of stream segments in the basin area is more or less effected by rainfall. Relief ratio indicates that the discharge capability of watershed is very high and the groundwater potential is meagre. The low value of drainage density in spite of mountainous relief indicates that the area is covered by dense vegetation and resistant rocks permeated by fractures and joints. These studies are helpful in watershed development planning and wise utilization of natural resources.
000029755 653__ $$aGis
000029755 653__ $$aMorphometric Analysis
000029755 653__ $$aGeology
000029755 653__ $$aChalakudi River Basin
000029755 700__ $$aSreekumar, S.
000029755 700__ $$aAslam, A.
000029755 773__ $$pApplied Water Science
000029755 773__ $$a10.1007/s13201-014-0212-8
000029755 8564_ $$uhttp://dx.doi.org/10.1007/s13201-014-0212-8$$yExternal link (Open Access)
000029755 980__ $$aARTICLE