geo.wikisort.org - RiverThe Asahan River (Indonesian: Sungai Asahan) is one of the principal rivers in North Sumatra, Indonesia, that begins in Porsea, Toba Samosir Regency at the Southeast part of Lake Toba.[1]
River in North Sumatra, Indonesia
Asahan River
Sungai Asahan, Aek Asahan |
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 Spring of the Asahan River at Porsea, Toba Samosir (1929) |
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Country | Indonesia |
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Source | |
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• location | Lake Toba, Porsea, Toba Samosir, North Sumatra |
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• coordinates | 2.434866, 99.147690 |
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• elevation | 950 m |
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Mouth | |
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• location | Strait of Malacca |
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• coordinates | 3.03333°N 99.866667°E |
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• elevation | 0 m |
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Length | 147 km (91 mi) |
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Basin size | 3741 km² |
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Discharge | |
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• average | 155 m³/s |
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Hydrology
The river flows toward a north-easterly direction, cutting through the upper course of the deep valley in the Barisan Mountains in Toba Samosir Regency, then flows through the Asahan Regency and eventually empties into the Strait of Malacca
The largest city on the Asahan is Tanjungbalai, Asahan with a population of more than 150,000 people. The river houses the Sigura-gura Dam, which supplies power to the North Sumatran Province.
Tributaries of the Asahan include the Silang, Silau, Nantalu, Masihi, Lauran, and Baru River.
Geography
The river flows along the northeast area of Sumatra with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification).[2] The annual average temperature in the area is 23 °C. The warmest month is March, when the average temperature is around 25 °C, and the coldest is May, at 23 °C.[3] The average annual rainfall is 2950 mm. The wettest month is November, with an average of 381 mm rainfall, and the driest is June, with 117 mm rainfall.[4]
See also
References
На других языках
- [en] Asahan River
[it] Asahan
Asahan (indonesiano: Sungai Asahan) è un fiume dell'Indonesia che scorre sull'isola di Sumatra, lungo circa 150 km. Nasce dal Lago Toba, scorre in direzione nord-est per sfociare infine nello Stretto di Malacca, creando un estuario. Nel suo corso superiore scorre attraverso la profonda valle dei monti Barisan. La città di Tanjung Balai si trova nei pressi dell'estuario.
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