CHANGE ANALYSIS OF BANK LINE MIGRATION, EROSION AND SEDIMENTATION PATTERNS AT LOWER REACHES OF MAHI RIVER, GUJARAT USING REMOTE SENSING AND GIS
Keywords:
bank line erosion, Bank line migration, static changesAbstract
A number of dams have been constructed across the Mahi River in Gujarat state. Lower reaches of Mahi
River from Sindhrot dam, near Vadodara to Gulf of khambhat, in 176 km length, has been selected for the change
analysis of bank line migration, erosion and sedimentation pattern. Satellite imageries (LISS III) from 1990 to 2016 and
google earth images have been used in the analysis in GIS environment. The study indicated that the river reaches from
Tithor to Sona Talavadi is currently under active erosion .It has been observed that area of erosion is more than
deposition. Probably it is due to checking of the sediments by the dams located in the upstream. Migration of bank lines
from 1990 to 2016 is maximum towards southern side in the central portion and in the northern side at the river mouth
within the flood plain.
