Kochechum River
Encyclopedia
The Kochechum is a river in Siberia
, Russia
, it flows through the Krasnoyarsk Krai
. It is right and most significant inflow of the Nizhnyaya Tunguska river.
The confluence of Kochechum and Nizhnyaya Tunguska corresponds to the farthest point of fairway section upstream off the Yenisei river.
with depth of frozen layer varies between 50 and 200 meters. The permafrost effectively blocks any underground supply, all water flowing through the river comes with snow and rain. The river stays ice-bound from October to May/June every year.
As watershed area doesn't contain any significant lakes, the flow of the Kochechum strongly depends on season of year closing zero value in early spring and reaching its maximum in June. The latter month corresponds to its seasonal inundation, which usually gives 75% of the overall annual yield of water.
Siberia
Siberia is an extensive region constituting almost all of Northern Asia. Comprising the central and eastern portion of the Russian Federation, it was part of the Soviet Union from its beginning, as its predecessor states, the Tsardom of Russia and the Russian Empire, conquered it during the 16th...
, Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
, it flows through the Krasnoyarsk Krai
Krasnoyarsk Krai
Krasnoyarsk Krai is a federal subject of Russia . It is the second largest federal subject after the Sakha Republic, and Russia's largest krai, occupying an area of , which is 13% of the country's total territory. The administrative center of the krai is the city of Krasnoyarsk...
. It is right and most significant inflow of the Nizhnyaya Tunguska river.
General information
The length of the river is 733 km, the area of watershed is 96,400 km², the average discharge in the mouth equal to 600 m3/s. The part of its basin near the source lies on the southern slopes of Putorana Plateau. It flows to the south direction through Syverma Plateau and joins Nizhnyaya Tunguska near the town Tura. The primary tributaries of Kochechum are Embenchime, Tembenchi and Turku.The confluence of Kochechum and Nizhnyaya Tunguska corresponds to the farthest point of fairway section upstream off the Yenisei river.
Climatic conditions & water regime
The basin of the river entirely belongs to the zone of continental subarctic climate. Winter period starts in October and ends in May, during calendar winter temperatures can plummet below -60 °C. Due to average temperatures below freazing point in this area, its watershed belongs to the region of continuous permafrostPermafrost
In geology, permafrost, cryotic soil or permafrost soil is soil at or below the freezing point of water for two or more years. Ice is not always present, as may be in the case of nonporous bedrock, but it frequently occurs and it may be in amounts exceeding the potential hydraulic saturation of...
with depth of frozen layer varies between 50 and 200 meters. The permafrost effectively blocks any underground supply, all water flowing through the river comes with snow and rain. The river stays ice-bound from October to May/June every year.
As watershed area doesn't contain any significant lakes, the flow of the Kochechum strongly depends on season of year closing zero value in early spring and reaching its maximum in June. The latter month corresponds to its seasonal inundation, which usually gives 75% of the overall annual yield of water.
External links
Kochechum, sci-lib: Great Soviet EncyclopediaGreat Soviet Encyclopedia
The Great Soviet Encyclopedia is one of the largest and most comprehensive encyclopedias in Russian and in the world, issued by the Soviet state from 1926 to 1990, and again since 2002 .-Editions:There were three editions...