Brahmaputra River System, Origin, Length, Tributaries

The Brahmaputra River System is one of Asia’s largest and most significant river systems. It originates from the Chemayungdung Glacier, near Mount Kailash, in the Angsi Glacier region in southwestern Tibet. It then passes through Assam and Bangladesh, eventually merging with the Bay of Bengal. 

The river spans across the Indian states of Assam and Arunachal Pradesh and plays a crucial role in the northeastern region of India. The Brahmaputra River rises in the eastern Tibetan Plateau course through India and Bangladesh. The river supports a diverse ecosystem, serving as shelter to a wide range of flora and fauna, including rare and endangered species.

Brahmaputra River System

The Brahmaputra River System is surrounded by the Himalayas to the north, the Patkai Hills to the east, the Assam Hills to the south, and the Himalayas again to the west. The Himalayan regions of Sikkim and Arunachal Pradesh, which form part of the Brahmaputra Basin, experience heavy snowfall. These regions also account for 55.48% of India’s total forest cover, making them some of the greenest areas in the country.

One of the most remarkable features of the Brahmaputra River System is Majuli, an island in Assam, which holds the distinction of being the world’s largest and oldest inhabited river island, recognized by UNESCO. The river system also has a significant hydropower potential of 66,065 MW, making it a crucial resource for renewable energy development.

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As the Brahmaputra River flows from Kobo to Dhubri in Assam, it accumulates a large amount of sediment from its 20 tributaries on the north bank and 13 on the south bank. The region receives the majority of its annual rainfall during the South-West monsoon season, with 85% of the total precipitation occurring between May and September.

Brahmaputra River System Origin

The Brahmaputra, meaning “Son of Brahma,” originates from the Chemayungdung glacier in southwestern Tibet. Its source lies in proximity to the origins of the Indus and Sutlej rivers. Despite its location at a remarkably high altitude, the Tsangpo River maintains a gentle gradient. It flows at a slow pace, forming a broad river channel that stretches for nearly 640 kilometers.

Brahmaputra River System Tributaries

The Brahmaputra River System Tributaries play a significant role in shaping its flow and water volume. The rivers in the Himalayan region are primarily glacier-fed, experiencing a rise in water levels during the monsoon season. Heavy rainfall, occurring between May and September due to the southwest monsoon, often leads to flooding in these rivers, impacting the Brahmaputra’s overall flow. The tributaries of the Brahmaputra are classified into two categories: northern (left-bank) tributaries and southern (right-bank) tributaries. These rivers contribute significantly to the river’s strength, often causing seasonal flooding.

Brahmaputra River System Left Tributaries

The Brahmaputra River is fed by several significant tributaries that originate across Tibet, Arunachal Pradesh, and the Northeast Indian region. These rivers not only enrich the water volume of the Brahmaputra but also support hydropower generation, agriculture, flood regulation, and ecological balance. Below is a detailed table including the Brahmaputra River System Left Tributaries, their origins, the states or regions they pass through, and their key contributions to the river system and surrounding ecosystems.

Brahmaputra River System Right Tributaries

The Brahmaputra River System is enriched by various tributaries that originate in the Eastern Himalayas and the hills of Northeast India. These tributaries, flowing through diverse terrains and states like Assam, Meghalaya, Sikkim, and even Bhutan and Bangladesh, play an important role in shaping the region’s ecology, economy, and culture. Each river contributes uniquely, be it through hydroelectric potential, biodiversity support, irrigation, or transboundary cooperation. The following table highlights the Brahmaputra River System Right Tributaries detailing their origin, the regions they flow in, and their key significance.

Brahmaputra River System List of Dams and Hydro Projects

Brahmaputra River System has its vast network of tributaries, it sustains diverse ecosystems and human settlements, contributing significantly to agriculture, culture, and the economy. Below in the table includes the Brahmaputra River System List of Dams and Hydro Projects:

Different Names of Brahmaputra River

The Brahmaputra River is known by different names across its journey through various regions, reflecting diverse linguistic and cultural identities. Originating from Tibet, where it is revered as Tsangpo meaning “The Purifier,” the river flows through China, India, and Bangladesh. In each of these regions, it adopts unique names.