Visual interpretation of F.C.C. satellite data for channel migration and water logging conditions along Ghaghra and Terhi rivers in part of district Gonda and Bahraich, U.P.

Bed aggradation in the lower reach of the Jia Dhansiri River, India

“…River bank lines as defined in this study are digitized on satellite imageries in GIS environment for a period of 11 years (1995 to 2006) following methods suggested by Lewin et al (1977); Mosley (1975) and Agarwal and Mishra (1987). The following satellite imageries were used for this purpose: After creating bank line layers, channel widths at all cross section sites and years are measured in the GIS environment, and a database on channel width is created and presented here.…”

Natural hazards in the Ghaghara River area, Ganga Plain, India

“…The great floods of Huang Ho in China;1931, in Bangladesh;1987 and1988, in US;1993, of Yangtze in China;1998, in Mozambique;2000 are all well known. Next to Bangladesh, India is the most flood-affected country in the world.…”

“…The Ganga Plain rivers such as Ganga (Singh 2007b), Gandak , and Sarda (Mitra et al 2005) had been analysed for geomorphology, sedimentology, and flood characteristics. Channel migration has been described in the middle Ganga basin (Philip et al 1989) and along Ghaghara River (Agarwal and Mishra 1987). High water during monsoon, low degree of compaction of the sediments, and a large amount of runoff materials from watershed cause the river channel to shift laterally by more than 300 m in Brahmputra (Haque and Hossain 1988).…”