Chuja (Katun)
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Chuja Чуя |
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 Tschuja (Чуя) in the catchment area of the Katun (orange) |
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| Data | ||
| Water code | RU : 13010100312115100005094 | |
| location | Altai Republic ( Russia ) | |
| River system | If | |
| Drain over | Katun → Ob → Arctic Ocean | |
| source | on the Russian-Mongolian border, approximately 49 ° 36 ′ 4 " N , 89 ° 22 ′ 6" E |
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| Source height | approx. 2500 m | |
| muzzle | at Inja in the Katun coordinates: 50 ° 23 ′ 37 " N , 86 ° 40 ′ 21" E 50 ° 23 ′ 37 " N , 86 ° 40 ′ 21" E |
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| Mouth height | approx. 744 m | |
| Height difference | approx. 1756 m | |
| Bottom slope | approx. 5.5 ‰ | |
| length | 320 km | |
| Catchment area | 11,200 km² | |
| Discharge at the Tschagan-Usun gauge. Location: 175 km above the mouth |
MQ 1959/1989 |
24 m³ / s |
| Small towns | Kosh-Agach | |
| Communities | Taschanta , Inja | |
 Chuja Valley in the Altai Mountains |
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The Tschuja ( Russian Чуя ) is a 320 km long right tributary of the Katun , the strongest source river of the West Siberian Ob river . It rises near the border with Mongolia in the east of the Russian Altai north of the Durbet Daba border pass ( 2482 m ).
The uppermost source streams of the Chuja come mainly from the east and north. After about 20 km, the young river passes the Taschanta border station , which is a little below the pass on the M52 road . For the next 50 km or so it flows on the edge of an extensive plateau , the Chuja steppe , and receives the water of the source rivers Kyzylschin and Chaganka .
This is where Kosh-Agach , the capital of the region ( Rajon Kosh-Agach), lies at an altitude of almost 2000 m . In this steppe, poor in vegetation, but still usable for camel breeding , there is an extreme continental climate . It is the driest in the populated part of the Altai and the coldest in winter (measured lowest temperature -62 ° C).
The further course of the valley is almost straight towards west-northwest, which corresponds to the main orientation of the regional mountain ranges . At the mountain village of Tschagan-Usun , the high steppe turns into a steep valley, the slopes of which are partly overgrown with the larches of the Siberian forest zone. The road leads past rock faces and deep ravines; where the river valley becomes too narrow, it winds over smaller passes.
About 90 km downstream from Kosch-Agatsch lies Aktasch , the next largest town in the valley on a wide river terrace . Here the M52 leading to Novosibirsk changes briefly from the north to the south flank of the valley and back again at Tschibit . After another 100 kilometers with a strongly winding valley course, the Tschuja flows into the striking longitudinal valley of the Katun near Inja , whose strongly indented slopes have clear river terraces. In the lower reaches, the Chuia valley is almost as wide. A little below Inja, the Katun has to go through a tightly winding breakthrough valley, which is why the highway deviates to the opposite side and into a side valley. The Tschuja has an average discharge of 42.1 m³ / s at the mouth.
Web links
- Russia Open Rafting Events (International Rafting Federation (IRF))
- Russian Altai: soils, vegetation, wildlife, mountain map (University of Marburg)
- Russian Altai, map of the TU Dresden
- Chuja valley near Tashanta, photos and map
- Chuja valley near Aktash; Photos and map
- Katuntal near Inja and associated aerial map
Individual evidence
- ↑ a b Tschuja in the State Water Directory of the Russian Federation (Russian)
- ↑ a b c Article Tschuja in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ Tschuja at the Tschagan-Usun gauge - hydrographic data from R-ArcticNET