|
The Brahmaputra ( (:brɔmmɔput̪rɔ nɔd̪)),〔The Brahmaputra as it is called in various languages: (ベンガル語:ব্ৰহ্মপুত্ৰ নদ) ); , IAST: ; Yarlung Tsangpo; 〕 also called Tsangpo-Brahmaputra, is a trans-boundary river and one of the major rivers of Asia.〔 With its origin in the Chemayungdung glacier, located on the northern side of the Himalayas in Burang County of Tibet as the Yarlung Tsangpo River, it flows across southern Tibet to break through the Himalayas in great gorges (including the Yarlung Tsangpo Grand Canyon) and into Arunachal Pradesh (India), where it is known as Dihang or Siang.〔(【引用サイトリンク】title=Yarlung Tsangpo River in China )〕 It flows southwest through the Assam Valley as Brahmaputra and south through Bangladesh as the Jamuna (not to be mistaken with Yamuna of India). In the vast Ganges Delta, it merges with the Padma, the popular name of the river Ganges in Bangladesh, and finally the Meghna and from here it is known as Meghna before emptying into the Bay of Bengal.〔(【引用サイトリンク】url=http://www.eosnap.com/tag/brahmaputra-river/ )〕 About long, the Brahmaputra is an important river for irrigation and transportation. The average depth of the river is and maximum depth is . The river is prone to catastrophic flooding in spring when the Himalayan snows melt. The average discharge of the river is about , and floods can reach over .〔(Water Resources of Bangladesh ). Accessed 2010-11-18〕 It is a classic example of a braided river and is highly susceptible to channel migration and avulsion. It is also one of the few rivers in the world that exhibit a tidal bore. It is navigable for most of its length. The river drains the Himalaya east of the Indo-Nepal border, south-central portion of the Tibetan plateau above the Ganges basin, south-eastern portion of Tibet, the Patkai-Bum hills, the northern slopes of the Meghalaya hills, the Assam plains, and the northern portion of Bangladesh. The basin, especially south of Tibet, is characterized by high levels of rainfall. Kangchenjunga (8,586 m) is the only peak above 8,000 m, hence is the highest point within the Brahmaputra basin. The Brahmaputra's upper course was long unknown, and its identity with the Yarlung Tsangpo was only established by exploration in 1884–86. This river is often called Tsangpo-Brahmaputra river. The lower reaches are sacred to Hindus. While most rivers on the Indian subcontinent have female names, this river has a rare male name, as it means "son of Brahma" in Sanskrit (''putra'' means "son"). ==Course== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Brahmaputra River」の詳細全文を読む スポンサード リンク
|