The downstream is called the upper Tunguska River.Siberian rivers in Russia.It originates from Lake Baikal, flows north first, then turns west, and flows into Yenisei River.It is 1779 kilometers long.The drainage area is 1.039 million square kilometers.The main tributaries areIrkut River, Kitoi RiverOka RiverAnd the Ilim River.Abundant water resources, the annual average flow at the estuary is 4150 seconds.Irkutsk, Brawak and Usti Ilymsk hydropower stations are built on the trunk and tributary roads.The upper reaches from Irkutsk to Lake Baikal and Bratsk, and the lower reaches from Boguchane to the estuary can be navigable for 320 kilometers.The freezing period is 5-6 months.It mainly produces sturgeon, locust, cod, salmon, etc.[1-2]
The main tributaries areIrkut River、Oka River, Ilim River, etc.There are many rapids and rapids along the river, rich in hydraulic resources, and the annual average flow at the estuary is 5
, 100 m3/s.
There areIrkutsk、Bratsk, Usti Ilimsk and Boguchane hydropower stations.
Upstream fromLake BaikalTo Bratsk andUstyilmskThe downstream of the reservoir dam is navigable from Boguchane to the estuary.
Icing periodIt is about half a year long (upstream from November, downstream from the end of October to May).Main productsSturgeon、Huso、Haddock、salmonEtc.
Scientists have made several interesting assumptions: if no other river flows into Lake Baikal, and the annual average flow of the Angara River flows out, it will take 40 years to drain the water of Lake Baikal;If all the major rivers in the world flow into Lake Baikal, it will take about one year to fill it. The water in the lake can supply 5 billion people with water for half a century.
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RussiaSiberiarivers.Source outLake Baikal, forYenisei RiverMain tributaries.It is 1779 kilometers long and has a drainage area of 1.04 million square kilometers. It is rich in water resources.
Three hydropower stations have been built: Irkutsk (1958)Bratsk(Bratsk, 1966; reservoir area 5504 km2, andUstyilmsk(Ust Illimsk, the first generating unit in 1974).
In the early 1980s, Boguchany Hydropower Station was built at the lower reaches of Usti Ilimsk.
All hydropower stations transmit power to Irkutsk Cheremkhovo industrial zone along the river.
Water resources
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The Angara River is rich in water resources. There are four hydropower stations on the river:Irkutsk Hydropower Station、Bratsk Hydropower Station、UstyilmskHydropower Station and Boguchane Hydropower Station (the latter has not been built yet).
This huge fresh water lake with more than 300 rivers is surrounded by volcanoes, and the lake water only flows out through the Angara River.The river flows throughIrkutskIn the futureYeniseskInflow not far from upstreamYenisei River。
The mountains beside the lake belong to the branch of the vast Altay Mountains.
This season, people have begun to feel cold, especially in this special climate area, autumn is followed by early winter.At the beginning of October, the sun sets at five o'clock every afternoon, and the temperature often drops below zero in the long dark night.The mountains along the lake have been whitened by the first snowfall, and the snowfall will last until next summer.
In winter, this inland sea will be covered with ice up to several feet thick, and mail carriers and business travelers will come and go on it.
