Geography


Chapter : 3. Drainage

The Brahmaputra Drainage System

1. The Brahmaputra rises in the Tibet east of Mansarowar lake very close to the source of the Indus and the Satluj.
2. It is one of the largest river in the world with a total length of 2900 km.
3. It flows eastwards parallel to the Himalayas.
4. On reaching the Namacha Barwa (7757 m), it takes a turn and enters India in Arunachal Pradesh through a gorge. Here it is called the Dihang and is joined by the Dibang, the Lohit, the Kenula and many other tributaries to form the Brahmaputra in Assam.
5. In Tibet the river carries a smaller volume of water and less silt as it is cold and dry area.
6. In India the river carries a large volume of water and considerable amount of silt.
7. In rainy season the river overflow its banks causing widespread devastation due to the flood in Assam & Bangladesh.
8. The river also shifts its channel frequently.
9. The Brahmaputra has a braided channel in its entire length in Assam and forms many riverine islands. Majuli, in the Brahmaputra river is the largest inhabited riverine island in the world.

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