A study on channel morphology of Bashistha and Bahini-Bharalu river systems, Assam and Meghalaya, India

The morphological analysis of Bashistha and Bahini-Bharalu river channels has been carried out through the measurements of channel geometry (channel width, channel depth, bed width, wetted perimeter, hydraulic radius), channel fluid dynamics (water discharge, velocity) and downstream hydraulic geometry (relationships among independent and dependent channel variables). The study has been carried out in seven cross sections along the Bashistha river and in eight cross sections along the Bahini-Bharalu river. The cross sectional shapes and sizes of both the rivers are analyzed from the cross sectional profiles. The fluvio-geomorphic behaviour of the rivers are analyzed by the study of their hydraulic geometry.