Catchment area of the Pur
The 389 km long Pur (Russian Пур ) is an opening into the Tasbusen the Kara Sea Power in Western Siberia (Russia, Asia). Together with the source river Pjakupur and its longest river source Jangjagun the Pur is 1024 km long.
The Pur arises in the central part of the West Siberian Lowland from the headwaters Pjakupur ( Пякупур ) and Aiwassedapur ( Айваседапур ), about 4 km below the city Tarko -sale ( at Pjakupur ). The headwaters originate on the northern flank of the ridge Sibirskije uwaly north of the Ob - agent run.
The Pur flows through its entire length on the territory of the Yamal-Nenets Autonomous Okrug strongly meandering the northern part of the West Siberian Plain and finally ends with a 20 km wide delta in the Tasbusen the Kara Sea.
The main tributaries are Trybjacha, Bolshaya Chadyrjacha, Ngarka - Chadytajacha and Njadassaljachadyta of right and Jamsowei, Jewojacha, Tabjacha and Chadutte from the left. In the catchment area of the Pur there are 85,000 lakes with a total area of 11,000 km ², of which 1465 with an area of about 1 sq. km.
The catchment area of 112,000 km ² comprises Pur. The average discharge at the mouth is 1,040 m³ / s, the maximum ( absolute ) 10,000 m³ / s; 86 km above still 896 m³ / s. , With a minimum of 226 m³ / s in April and a maximum of 3,979 m³ / s in June Near the mouth are the two main arms, the actual Pure and Tojassjo ( Тоясё ), each about one kilometer wide and up to four meters deep. The flow rate is 0.2 m / s
The river freezes from November to May
Economy and infrastructure
The Pur is navigable for its entire length, as well as the headwaters Pjakupur on a further 85 miles and Aiwassedapur to 171 km.
In the catchment area of Pur are important oil and gas reservoirs, such as the Urengoy gas fields and Gubkinski. Therefore, since the 1970s a number of towns and larger settlements, including Purpe, Gubkinski and Tarko-Sale was here mainly directly on the source river Pjakupur. On Pur themselves are the settlements of urban type Korottschajewo and Urengoy.
By the river valley leading to railway and road, which connect since the 1980s, the oil and gas producing areas in northern West Siberia, Surgut and Tyumen with the "outside world". Over the river so far lead only pontoon bridges, so at Urengoy.