Kowa (river)
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Kowa Кова |
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 The Kowa not far from its mouth |
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| Data | ||
| Water code | RU : 16010300212116200018430 | |
| location | Irkutsk Oblast , Krasnoyarsk Region ( Russia ) | |
| River system | Yenisei | |
| Drain over | Angara → Yenisei → Kara Sea | |
| source | on the Birjussa plateau 56 ° 47 ′ 1 ″ N , 100 ° 14 ′ 5 ″ E |
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| Source height | approx. 530 m | |
| muzzle | in the Bogutschanystausee of the Angara Coordinates: 58 ° 17 '44 " N , 100 ° 18' 58" E 58 ° 17 '44 " N , 100 ° 18' 58" E |
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| Mouth height | 208 m (after reaching the destination of the Bogutschany reservoir ) | |
| Height difference | approx. 322 m | |
| Bottom slope | approx. 0.71 ‰ | |
| length | 452 km (with lower reaches in Bogutschany reservoir ) | |
| Catchment area | 11,700 km² | |
| Discharge at the Prokopjewo A Eo gauge : 10,200 km² Location: 66 km above the mouth |
MQ 1957/1975 Mq 1957/1975 |
41.71 m³ / s 4.1 l / (s km²) |
| Left tributaries | Mydorma , Chikileia | |
| Right tributaries | Tuschama , Pruda , Bederma , Sjoda | |
The Kowa ( Russian Кова ) is a 452 km long left tributary of the Angara in southern central Siberia in Russia .
The Kowa rises on the territory of the Irkutsk Oblast , a good 100 km northwest of Bratsk on the south-eastern edge of the Birjussa plateau named after the Birjussa in the southern part of the Central Siberian Mountains . It initially flows south, but after a few dozen kilometers turns in a wide arc to the north. The Kowa maintains this direction of flow along the eastward stretching of the Kowar Ridge (Kowinskaja grjada) up to its mouth. It overcomes a large number of rapids : Turakinski, Kamkamborski, Deschembinski, Magdonski, Tschombenski, Kossoi Byk and others. On a piece (about 40 km as the crow flies ) of its middle course, the river marks the border to the Krasnoyarsk region , in which it then flows on. About 75 km of the lower reaches lie in the storage area of the Bogutschany reservoir of the Angara, which has been filled since spring 2012 after the dam was completed, and thus form one of the longest “bays” of the reservoir. The water depth over the former mouth of the Kowa in the Angara, about 140 km west-northwest of Ust-Ilimsk , will be almost 50 m after reaching the dam target planned for the end of 2013 .
The catchment area of the river covers 11,700 km². The most important tributaries are Mydorma (length 53 km) and Tschikileja (69 km) from the left and Tuschama (82 km), Pruda (99 km), Bederma (56 km) and Sjoda (53 km) from the right.
The discharge 66 km above the mouth is an annual mean of 41.71 m³ / s, with a maximum monthly mean of 274 m³ / s in May and a minimum monthly mean of 4.73 m³ / s in March.
The Kowa flows through sparsely populated area. The few villages that used to be on the lower reaches were flooded by the Bogutschany reservoir. The middle reaches the road that runs from the Bratsk - Ust-Ilimsk connection to Kodinsk and to the dam of the Boguchany reservoir.
Web links
Individual evidence
- ↑ Soviet General Staff Map 1: 200,000. Sheet O-47-XXIX. Edition 1986
- ↑ Soviet General Staff Map 1: 200,000. Sheet O-47-XVII. Edition 1986
- ↑ a b c d Kowa in the State Water Register of the Russian Federation (Russian)
- ↑ a b c d Article Kowa in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ a b Kowa at the Prokopjewo gauge - hydrographic data from R-ArcticNET