Popigai (river)
|
Popigai Popigaya |
||
 Popigai (Попигай) in the catchment area of the Khatanga (top right) |
||
| Data | ||
| Water code | RU : 17040300112117600031738 | |
| location | Krasnoyarsk Region ( Russia ) | |
| River system | Chatanga | |
| Drain over | Chatanga → Arctic Ocean | |
| source |
Anabar Plateau in the Central Siberian Mountains 70 ° 49 ′ 2 ″ N , 110 ° 35 ′ 50 ″ E |
|
| Source height | approx. 485 m | |
| muzzle | near Novorybnaya in the Khatanga coordinates: 72 ° 57 '38 " N , 106 ° 9' 14" E 72 ° 57 '38 " N , 106 ° 9' 14" E |
|
| Mouth height | approx. 0.1 m | |
| Height difference | approx. 484.9 m | |
| Bottom slope | approx. 0.91 ‰ | |
| length | 532 km | |
| Catchment area | 50,300 km² | |
| Drain |
MQ |
400 m³ / s |
| Left tributaries | Chordy-Daldyn , Daldyn , Rassocha , Upper Fomich , Sopochnaya , Polovinnaya | |
| Right tributaries | Dogoi , Fyodor , Ese-Jurjage , Anabarka , Kostramin , Unterer Fomitsch | |
 Satellite image of the Popigai Crater and the Popigai River flowing through it from southeast to northwest |
||
The Popigai ( Russian Попигай ) is about 532 km long, right or eastern tributary of the Laptev Sea ( Arctic Ocean flowing) Chatanga the northeast of the Krasnoyarsk region and the northern part of Siberia and Russia ( Asia ).
course
The Popigai arises about 480 km north of the Arctic Circle in the northeast of the Anabar Plateau , the northern part of the Central Siberian Mountains. In the northeast of the Krasnoyarsk region , it flows from Lake Chonno-Kjujole , which is around 485 m above sea level . The border to the neighboring Republic of Sakha (Yakutia) is a minimum of about 3 km south-southeast of this lake.
The Popigai runs exclusively in the Krasnoyarsk Territory. In its initially narrow valley with many rapids, it flows in a northeastern direction near the eastern border with Sacha. Later it runs mainly north-west. In this direction it flows through the Popigai crater , an impact crater about 100 km in diameter, which is around 35 million years ( Eocene ) old and takes its name from Popigai. This section meanders of the river strong and soon reaches the North Siberian Lowland , which he wide in his now flat and flows through swampy valley.
In the lower reaches of the mouth, the Popigai forms two to three island-rich river arms, which reunite several times and flow into the Chatanga coming from the south near the 0.1 m height mark ( ⊙ ) , the latter being around 10 km wide directly below the Popigai mouth is and about 28 km further north into the Chatangagolf belonging to the Laptev Sea .
Tributaries and localities
The tributaries of the Popigai include (viewed downstream): Chordy-Daldyn, Dogoi, Fyodor, Ese-Jurjage, Daldyn, Rassocha, Upper Fomich, Anabarka, Kostramin, Sopochnaja, Polovinnaya and Lower Fomich. There are no settlements on Popigai, but Novorybnaya is located about 18 km south-southwest or above its mouth on the east bank of Chatanga .
Catchment area, hydrology and hydrography
The catchment area of the Popigai covers around 50,300 km². Above its delta, the river is around 500 m wide and over 5 m deep. The mean annual discharge (MQ) near the mouth is 400 m³ / s. The average flow velocity is 0.2 m / s. At the confluence with the Chatangadolf the river arms are together about 5.5 km wide. Over a length of more than 50 kilometers, the lower reaches of the river are influenced by the tides .
Climate, fauna and ice
The Popigai flows through landscapes of frost rubble deserts and tundra with mosses and lichens . The winters are long and extremely cold, the summers short and cold. The river is covered in ice from around the end of October to June . When the permafrost thaws in summer and the ice and snow melt, strong floods often arise , which the river drives into the Chatanga Gulf.
Infrastructure
The Popigai is navigable in the lower reaches of over 100 km. However, since it flows through almost completely uninhabited area, it is not used for shipping. There is also no other infrastructure.
Individual evidence
- ↑ a b Topographic map (1: 200.000, Bl. S-48-XXIX, XXX, Ed. 1986), Popigai estuary (center left; river coming from the right) u. a. with Chatanga Golf Southwest (top), Chatanga estuary at the transition from Chatanga to Chatanga Golf between Cape Turupkin and Big Cape Korga (top left) on maps48.narod.ru (with heights above sea level)
- ↑ a b c d e Article Popigai in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)
- ↑ a b c d e Popigai in the State Water Register of the Russian Federation (Russian)
- ↑ Topographic map (1: 200.000, Bl. R-49-IX, X, Ed. 1987), Popigai source (center below), initially flowing to the northeast, u. a. with Krasnoyarsk region (large area above left) and Republic of Sakha (small area below right) on mapr49.narod.ru (with heights above sea level )