Kirenga

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Kirenga
Киренга
Location of the Kirenga in the catchment area of ​​the Lena (bottom left)

Location of the Kirenga in the catchment area of ​​the Lena (bottom left)

Data
Water code RU18030000312117100007438
location Irkutsk Oblast ( Russia )
River system Lena
Drain over Lena  → Arctic Ocean
source Baikal Mountains
54 ° 28 ′ 47 ″  N , 108 ° 27 ′ 53 ″  E
Source height approx.  1500  m
muzzle Lena coordinates: 57 ° 46 '8 "  N , 108 ° 7' 48"  E 57 ° 46 '8 "  N , 108 ° 7' 48"  E
Mouth height 250  m
Height difference approx. 1250 m
Bottom slope approx. 1.7 ‰
length 746 km
Catchment area 46,600 km²
Discharge at the level Schorochowo
A Eo : 46,500 km²
Location: 10 km above the mouth
MQ 1927/1990
Mq 1927/1990
650 m³ / s
14 l / (s km²)
Left tributaries Chanda
Right tributaries Ulkan , Okunaika, Minja, Kutima
Small towns Kirensk
Navigable 438 km

The Kirenga ( Russian Кире́нга ) is a 746 km long right tributary of the Lena in Eastern Siberia ( Russia , Asia ).

course

The Kirenga rises at a height of around 1500  m on the west side of the Baikal Mountains, which are almost 2,200 m high in this area . The source is only six kilometers from the shore of Lake Baikal; the source of the Lena is a few dozen kilometers to the southwest.

In the upper reaches the river Linke Kirenga (Lewaja Kirenga) is called, until after almost 50 kilometers it joins the much smaller Right Kirenga (Prawaja Kirenga) . It initially flows in a north-westerly to south-westerly direction through the mountains to the west of the main ridge of the Baikal Mountains until it turns sharply northwards. In its further course in a predominantly northerly direction through the low mountain range between Baikal and Lena, the Kirenga marks the eastern border of the Lena-Angara plateau .

The Kirenga finally flows into the Lena at the small town of Kirensk, named after it, on the headland between the two rivers, at an altitude of 250  m . The Kirenga flows through the territory of Irkutsk Oblast along its entire length .

The most important tributaries are Ulkan , Okunaika, Minja and Kutima from the right and Chanda from the left.

Hydrography

The catchment area of the Kirenga covers 46,600 km². Near the mouth, the river is up to 300 meters wide and over five meters deep; the flow velocity is 1.9 m / s.

The mean water flow in the village of Schorochowo, 18 km above the mouth, is 650 m³ / s, with a minimum monthly mean of 146 m³ / s in March and a maximum monthly mean of 2462 m³ / s in June. This slightly surpasses the Lena at the confluence.

The Kirenga freezes between late October / early November and late April / May.

Infrastructure

The Kirenga is navigable for 438 kilometers from the village of Karam.

From the middle reaches there are relatively many smaller villages along the Kirenga. The urban-type settlements Magistralny and Ulkan and the district administrative center of Kazachinskoye are located here near the river . Between Magistralny ( Kirenga station ) and Ulkan, the Baikal-Amur Magistrale follows the course of the river for almost 50 kilometers. Above the confluence of the Okunaika, the railway line crosses the Kirenga on a nearly 350-meter-long bridge. There are also two road bridges over the river here.

Individual evidence

  1. a b Article Kirenga in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)http: //vorlage_gse.test/1%3D061363~2a%3D~2b%3DKirenga
  2. a b Kirenga (Lev. Kirenga) in the State Water Register of the Russian Federation (Russian)
  3. a b Kirenga at the Schorochowo gauge - hydrographic data at R-ArcticNET
  4. List of Inland Waterways of the Russian Federation (confirmed by Order No. 1800 of the Government of the Russian Federation of December 19, 2002)