| Abstrakt: |
Quantitative measurements of morphometric parameters of basin and sub basins have raised attraction of research in geology, geomorphology and hydrology since Horton's period. In the present study, with the aid of GIS several morphometric parameters were employed to understand the nature, landscape development and hydrologic responses of Sirsa river basin and its twelve sub basins (namely 1, 2, 3 etc.). Digital Elevation Model (DEM) was used to derive the relief and slope parameters; whether toposheets based digitized drainage network was used to calculate linear and areal aspects. Relative relief, dissection index, ruggedness index, average slope, stream frequency and drainage density were calculated from the basin by dividing it hundreds of one square km grids. Pearson correlation coefficient and probable error of correlation coefficient were determined between above mentioned parameters for all sub basins as well as basin. Justification of the correlations whether it were significant or not; and its relation to basin and sub basin development are analyzed. Overall analysis shows that the basin is normal, well drained and near-elongated. The analysis of various morphometric parameter and their correlations indicate that sub basins are in early mature stage, mid to late mature stage and early old stage of landscape development. The results are quite significant to justify the erosional status, influence of geologic and other factors on basin development. [ABSTRACT FROM AUTHOR] |
