摘要
This study finds 1D, 2D and 3D morphometric parameters of the middle-west part of Kushtia district, Bangladesh to implement groundwater potential. For this purpose, the SRTM (DEM) data were used to compute different parameters in GIS environment. The values of 1D parameters like stream order, stream length and mean bifurcation ratio was calculated as 6, 1774.72 km and 2.08 respectively. The computed values of drainage density (0.01 - 23.06 km/km<sup>2</sup>), stream frequency (1 - 5.64 per km<sup>2</sup>), drainage texture (0.25 - 0.70 km/km<sup>4</sup>), length of overland flow (0.02 - 45.05 km<sup>2</sup>/km), constant of channel maintenance (0.04 - 90.04 km<sup>2</sup>/km), circularity ratio (0.39 - 0.84), form factor (0.35), elongation ratio (0.62), relief ratio (0.00 - 1.81) and ruggedness number (0.04 - 214.72) disclose the morphometrical conditions of the study area. The results revealed from this study on drainage morphometry can be a great assistance for understanding the hydro-geomorphological character of the area.
This study finds 1D, 2D and 3D morphometric parameters of the middle-west part of Kushtia district, Bangladesh to implement groundwater potential. For this purpose, the SRTM (DEM) data were used to compute different parameters in GIS environment. The values of 1D parameters like stream order, stream length and mean bifurcation ratio was calculated as 6, 1774.72 km and 2.08 respectively. The computed values of drainage density (0.01 - 23.06 km/km<sup>2</sup>), stream frequency (1 - 5.64 per km<sup>2</sup>), drainage texture (0.25 - 0.70 km/km<sup>4</sup>), length of overland flow (0.02 - 45.05 km<sup>2</sup>/km), constant of channel maintenance (0.04 - 90.04 km<sup>2</sup>/km), circularity ratio (0.39 - 0.84), form factor (0.35), elongation ratio (0.62), relief ratio (0.00 - 1.81) and ruggedness number (0.04 - 214.72) disclose the morphometrical conditions of the study area. The results revealed from this study on drainage morphometry can be a great assistance for understanding the hydro-geomorphological character of the area.
