International Journal of Fisheries and Aquatic Studies
2020, Vol. 8, Issue 1, Part C
Morphometric study of river subbasin using remote sensing and geographic information system (GIS)Author(s):
Sandip Markad, Adinath T Markad and Dhanaji PatilAbstract:
During present study, subbasin of Kayadhu river was analyzed for different morphometric aspects. The study basin is located in Hingoli district of Maharashtra state, India and spread across 19°52’11.5” N to 19°45’49.1” N Latitudes and 77°02’20.0” E to 77°09’03.0” E Longitudes. The drainage basin and river streams were delineated from Survey of India (SOI) Topographic maps (1:50000 scale) whereas SRTM DEM data was used for estimation of elevation and relief parameters of the basin. The streams of the study basin were order following Strahler method and different morphometric parameters related to linear, aerial as well as relief aspects were estimated. The subbasin of Kayadhu river under study was 5th order basin with semi-dendritic drainage pattern. The basin was spread across 85.45 sq. km area with 37.76 km perimeter encompassing 189 number of streams of different orders as well as four water reservoirs. The study revealed that the basin had drainage density of 1.69 sq./km, mean stream frequency of 2.21 streams/ sq. km and texture ratio of 3.79. This inferred that the basin had lower surface runoff as well as permeable subsoil making it prone to the flooding and lesser dissected basin. The estimated values of form factor (0.66), circulatory ratio (0.75) and elongation ratio (0.92) suggest that the basin is circular in shape with some structural disturbance and risk of flooding. The calculated values of Constant channel maintenance (0.59 sq.km/km) and stream length ratio concludes that basin is still in late geomorphic development phase. The relief parameters of the basin lead to the conclusion that the basin has steeper slope and related degradation. Pages: 239-244 | 610 Views 101 DownloadsDownload Full Article:
How to cite this article:
Sandip Markad, Adinath T Markad, Dhanaji Patil. Morphometric study of river subbasin using remote sensing and geographic information system (GIS). Int J Fish Aquat Stud 2020;8(1):239-244.