Oka (Angara)
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Oka Ока, Axa |
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.jpg) The Oka above the confluence of the Schombolok |
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| Data | ||
| Water code | RU : 16010100612116200006699 | |
| location | Buryatia , Irkutsk Oblast , Russia ( Asia ) | |
| River system | Yenisei | |
| Drain over | Angara → Yenisei → Arctic Ocean | |
| origin |
Okinskoye Lake in Eastern Sayan 51 ° 54 ′ 46 ″ N , 100 ° 40 ′ 3 ″ E |
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| muzzle | in the Bratsker reservoir Coordinates: 55 ° 30 ′ 55 ″ N , 102 ° 20 ′ 54 ″ E 55 ° 30 ′ 55 ″ N , 102 ° 20 ′ 54 ″ E |
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| Mouth height | approx. 400 m
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| length | 630 km | |
| Catchment area | 34,000 km² | |
| Discharge at the Ust-Kada A Eo gauge : 33,400 km² Location: 36 km above the mouth |
MNQ 1962/1990 MQ 1962/1990 Mq 1962/1990 MHQ 1962/1990 |
32 m³ / s 270 m³ / s 8.1 l / (s km²) 700 m³ / s |
| Left tributaries | Dibi , Tissa , Cholto-Oka , Sima , Kimiltei , Alka | |
| Right tributaries | Tagna | |
| Medium-sized cities | Sima | |
 Location of the Oka in the catchment area of the Angara |
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The Oka ( Russian Ока ; Buryat Аха (Cyrillic) or Acha (Latin)) is a 630 km long, southwestern and orographic left tributary of the Angara in Siberia , Russia .
course
The Oka rises in the west of the Republic of Buryatia in the eastern part of Eastern Sayan . Its source is about 30 km north-northeast of the 3492 m high mountain Munku Sardyk in the small Lake Okinskoye .
The Oka flows north into the extreme south of the Central Siberian Mountains . It flows through the town of Sima in an otherwise hardly populated area in the Irkutsk Oblast .
The lower course of the river lies in the storage area of the Bratsker reservoir of the Angara.
Catchment area and tributaries
The catchment area of the Oka is 34,000 km². Their tributaries include with orographic allocation (l = left-hand side, r = right-hand side) , water length , mouth location with Oka river kilometers and - if known - catchment area size, among other things (viewed downstream) :
- Dibi (l; 100 km), above Orlik , km 519; 1,510 km²
- Tissa (1; 117 km), below Orlik, km 501; 3,020 km²
- Cholto-Oka (1; 108 km), far below Khushir , km 372; 2,430 km²
- Tagna (r; 158 km), a little above Sima , km 178; 2,550 km²
- Sima (1; 207 km), directly above Sima, km 139; 4,460 km²
- Kimiltei (1; 141 km), a little below Sima, near Kimiltei , 92 km; 3,220 km²
- Alka (1; 93 km), some below Sima, near Ujan , km 62; 989 km²
literature
- Evgeny Pospelow: Geografitscheskie naswanija Rossii . AST, 2008, p. 328. ISBN 978-5-17-054966-5 . (Russian)
Individual evidence
- ↑ a b c d e f Ока (Аха) in the State Water Register of the Russian Federation (Russian)
- ↑ a b Article Oka in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ Oka at the Ust-Kada gauge - hydrographic data from R-ArcticNET