Indus Mehran, Sênggê Zangbo, Shiquan He, Sindhu[1] | |
---|---|
![]() The Indus Gorge is formed as the Indus River bends around the Nanga Parbat massif, shown towering behind, defining the western anchor of the Himalayan mountain range. | |
![]() Course and major tributaries of the Indus | |
Location | |
Countries or regions | China, Kashmir (disputed region), Pakistan[2][3] |
States, provinces or administered regions | Tibet Autonomous Region, Indian-administered Ladakh, Pakistani-administered Gilgit-Baltistan, Khyber Pakhtunkhwa, Punjab, and Sindh[2][3] |
Cities | Leh, Kargil, Skardu, Dasu, Besham, Thakot, Swabi, Dera Ismail Khan, Mianwali, Bhakkar, Sukkur, Hyderabad, Karachi |
Physical characteristics | |
Source | Upper Gê'gyai |
• location | Ngari Prefecture |
• coordinates | 31°12′03″N 81°45′16″E / 31.20083°N 81.75444°E |
• elevation | 5,555 m (18,225 ft) |
2nd source | Lake Manasarovar[4] |
• location | Ngari Prefecture |
• coordinates | 30°35′35″N 81°25′25″E / 30.59306°N 81.42361°E |
• elevation | 4,600 m (15,100 ft) |
Source confluence | |
• location | Shiquanhe (confluence), Tibet Autonomous Region, People's Republic of China |
• coordinates | 32°29′54″N 79°41′28″E / 32.49833°N 79.69111°E |
• elevation | 4,255 m (13,960 ft) |
Mouth | Arabian Sea[5] |
• location |
|
• coordinates | 23°59′42″N 67°26′06″E / 23.99500°N 67.43500°E |
• elevation | 0 m (0 ft) |
Length | 3,180 km (1,980 mi)[6] |
Basin size | 1,120,000 km2 (430,000 sq mi)[6] |
Discharge | |
• location | Indus Delta |
• average | 5,533 m3/s (195,400 cu ft/s)[7] |
• minimum | 1,200 m3/s (42,000 cu ft/s) |
• maximum | 58,000 m3/s (2,000,000 cu ft/s) |
Discharge | |
• location | Sukkur |
• average | (Period: 1971–2000)5,673.5 m3/s (200,360 cu ft/s)[8] |
Discharge | |
• location | Mithankot |
• average | (Period: 1971–2000)5,812.3 m3/s (205,260 cu ft/s)[8] |
Discharge | |
• location | Tarbela Dam |
• average | (Period: 1971–2000)2,469 m3/s (87,200 cu ft/s)[8] |
Basin features | |
Progression | Arabian Sea |
River system | Indus River |
Tributaries | |
• left | Zanskar, Suru, Soan, Panjnad, Ghaggar |
• right | Shyok, Hunza, Gilgit, Swat, Kunar, Kabul, Kurram, Gomal, Zhob |
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The Indus (/ˈɪndəs/ IN-dəs) is a transboundary river of Asia and a trans-Himalayan river of South and Central Asia.[9] The 3,180 km (1,980 mi)[6] river rises in mountain springs northeast of Mount Kailash in the Western Tibet region of China, flows northwest through the disputed Kashmir region,[3] first through the Indian-administered Ladakh, and then the Pakistani administered Gilgit Baltistan,[a][11] bends sharply to the left after the Nanga Parbat massif, and flows south-by-southwest through Pakistan, before bifurcating and emptying into the Arabian Sea, its main stem located near the port city of Karachi.[12][13]
The Indus river has a total drainage area of circa 1,120,000 km2 (430,000 sq mi).[6] Its estimated annual flow is around 175 km3/a (5,500 m3/s), making it one of the 50 largest rivers in the world in terms of average annual flow.[14] Its left-bank tributary in Ladakh is the Zanskar River, and its left-bank tributary in the plains is the Panjnad River which is formed by the successive confluences of the five Punjab rivers, namely the Chenab, Jhelum, Ravi, Beas, and Sutlej rivers. Its principal right-bank tributaries are the Shyok, Gilgit, Kabul, Kurram, and Gomal rivers. Beginning in a mountain spring and fed with glaciers and rivers in the Himalayan, Karakoram, and Hindu Kush ranges, the river supports the ecosystems of temperate forests, plains, and arid countryside.
Geologically, the headwaters of the Indus and to their east those of the Yarlung Tsangpo (later in its course, the Brahmaputra) flow along the Indus-Yarlung suture zone, which defines the boundary along which the Indian plate collided with the Eurasian plate in the Early Eocene (approximately 50 Million years ago).[15] These two Eurasian rivers, whose courses were continually diverted by the rising Himalayas, define the western and eastern limits, respectively, of the mountain range.[15] After the Indus debouches from its narrow Himalayan valley, it forms, along with its tributaries, the Punjab region of South Asia. The lower course of the river ends in a large delta in the Sindh province of Pakistan.
Historically, the Indus was important to many cultures. The 3rd millennium BC saw the rise of Indus Valley Civilisation, a major urban civilization of the Bronze Age. During the 2nd millennium BC, the Punjab region was mentioned in the Rigveda hymns as Sapta Sindhu and in the Avesta religious texts as Hapta Həndu (both terms meaning "seven rivers"). Early historical kingdoms that arose in the Indus Valley include Gandhāra and Sindhu-Sauvīra. The Indus River came into the knowledge of the Western world early in the classical period, when King Darius of Persia sent his Greek subject Scylax of Caryanda to explore the river, c. 515 BC.[16]
For about 200 miles (320 km) it flows northwest, crossing the southeastern boundary of the disputed Kashmir region at about 15,000 feet (4,600 meters). A short way beyond Leh, in the Indian-administered union territory of Ladakh, it is joined on its left by its first major tributary, the Zanskar River. Continuing for 150 miles (240 km) in the same direction into the Pakistani-administered areas of the Kashmir region, the Indus is joined by its notable tributary the Shyok River on the right bank. Below its confluence with the Shyok, as far as the Kohistan region of Pakistan's Khyber Pakhtunkhwa province, it is fed by mighty glaciers
The situation between the two nations was complicated by the 1957–1959 uprising by Tibetans against Chinese rule. Refugees poured across the Indian border, and the Indian public was outraged. Any compromise with China on the border issue became impossible. Similarly, China was offended that India had given political asylum to the Dalai Lama when he fled across the border in March 1959. In late 1959, there were shots fired between border patrols operating along both the ill-defined McMahon Line and in the Aksai Chin.
Near Tatta the Indus branches into distributaries that form a delta and join the sea at various points south-southeast of Karachi. The delta covers an area of 3,000 square miles (7,800 square km) or more (and extends along the coast for about 130 miles (210 km). The uneven surface of the delta contains a network of existing and abandoned channels. The coastal strip, from about 5 to 20 miles (8 to 32 km) inland, is flooded by high tides. The Indus delta has elongated protruding distributaries and low sandy beaches.
historic region and autonomous region of China that is often called "the roof of the world." It occupies a vast area of plateaus and mountains in Central Asia
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