Jiadhal River
16.04.2024
Jiadhal River
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For the Prelims: About Jiadhal River, Important points |
Why in the news?
The profound impact of climate change on the delicate balance of life has recently been highlighted along the banks of the Jiadhal River in Assam's Dhemaji district.
Important points:
- One of the factors influencing the river's morphology is the increasing incidence of high rainfall in West Siang district of Arunachal Pradesh. The catchment area of Jiadhal River is located here
- Residents of Dhemaji district are demanding completion of a six kilometer long embankment on the upper stream of Jiadhal river to control flooding by this river.
About Jiadhal River:
- Jiadhal River is a northern tributary of the Brahmaputra River.
- The Jiadhal river is known for frequently changing its direction and causing devastating floods.
- It originates from the sub-Himalayan mountains of Arunachal Pradesh at an altitude of 1247 meters.
- The total length of this river is 187 km.
- After passing through a narrow valley in Arunachal Pradesh, the river enters the plains of Assam in Dhemaji district, where it flows in braided channels.
- This river finally joins the Brahmaputra near Selamukh in Lakhimpur district.
- But after the construction of an embankment at Kher Kuti Suti of Brahmaputra, the river merges with Subansiri River.
- Topographically, the upper part of this river basin is mountainous (Himalayan range), and the middle part is further plains.
- The sub-basin of the Jiadhal River receives heavy rainfall.
- It brings heavy silt from its 1346 sq km catchment area during the rainy season and deposits them on its bed in the plains, resulting in a considerable rise in its river bed.
- The Jiadhal River is an excellent example of a flash river and produces floods with sudden, high discharge and high sediment load and debris in a short time interval (ranging from a few hours to a day).
- The Jiadhal River passes through a peculiar topography – from the Abor hills of Arunachal Pradesh to the Dhemaji district of Assam, it naturally changes its course repeatedly and flows through several channels.
Source: Down to earth