Karaj River

Topographical map of the river course

The Amir Kabir dam

Template: Infobox River / Obsolete

The Karaj (Persian رود کرج, DMG Rūd -e Karaǧ ) is a 245 km long river in northern Iran. After the Zayandeh of Karaj is the main river of the central Iranian plateau. It rises in the Alborz mountain range in the Caspian Sea, flows south through the city of Karaj by the same name and opens later in the salty Namaksee. Riverside, the Amir Kabir dam, which supplies the capital Tehran with electricity and water is.

Course

The Karaj drains a 2800 km ² large area and leads on average per year to 499 million m³ of water. Along its length, the flow on a slope of 0.8%. The main river of the Karaj flows through the Dizintal and joins in Gačsar with a river which comes from the region of Kandovan. Other tributaries are the Saydak Rud, the Morud and Schahrestānak. Beyond the Amir Kabir dam there are only small tributaries that do not cause the water all year round.

The river can be divided into three sections. The upper part was formerly called Laura. There dwell the Gilaker, which are known for their apples orchards. The route through the upper Karadschtal was the shortest route between Tehran and Chalus on Kaspsischen sea. In addition, the area was such as the valley Kelārdascht a popular hunting ground of the kings of Iran kadscharischen. The area is a recreational area for the people of Tehran, so that hotels and 1970, a ski resort opened in Dizin.

The middle river valley starts at Karaj, where the river enters from the mountains to the plains. The so losing to gradient river here forms an alluvial fan and is used by people for irrigation. The main arm of the river runs from here to South East in the plains of Schahriyar. The removal of water is so high, so that the main stream of the Karaj has no water. As a result, the water table has dropped, some qanats dried up and fallen agricultural yields.

The lower river valley starts behind Islamschahr and Hasanabad. Here the river is only sometimes in spring water and there are only small hamlet along the river. After the village Nadschafabad the river that has united with the rivers Dschadschrud and Rud -e Sur flows south into the Salt Flat Dasht - e Kavir, where he then ends in Namaksee.

Source

  • Bernard Hourade: Karaj River. In: Ehsan Yarshater (ed.): Encyclopaedia Iranica, as of November 12, 2010, accessed 5 June 2011 (English, including literature references )
  • River in Asia
  • River in Iran
  • Alborz Mountains
  • Water system Namaksee
Namak Lake DIN 31635 Zayanderud Kandovan, Osku Gilaki people Hamlet (place)
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