Morkoka

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Morkoka
Моркока, Моркуока (Morkuoka)
Data
Water code RU18030800412117400018740
location Sakha Republic (Yakutia) ( Russia )
River system Lena
Drain over Marcha  → Wiljui  → Lena  → Arctic Ocean
origin Bajyttach Lake (Wiljui Plateau )
66 ° 40 ′ 27 ″  N , 108 ° 28 ′ 53 ″  E
Source height 627  m
muzzle Marcha coordinates: 65 ° 10 ′ 49 "  N , 115 ° 51 ′ 23"  E 65 ° 10 ′ 49 "  N , 115 ° 51 ′ 23"  E
Mouth height 148  m
Height difference 479 m
Bottom slope 0.57 ‰
length 841 km
Catchment area 32,400 km²
Discharge at the gauge Chabardino
A Eo : 18,600 km²
Location: 380 km above the mouth
MQ 1973/1994
Mq 1973/1994
116 m³ / s
6.2 l / (s km²)
Left tributaries Tangchan , Morkoka-Marcharata
Navigable No
Course of the Morkoka (Моркока) in the catchment area of ​​the Wiljui

Course of the Morkoka (Моркока) in the catchment area of ​​the Wiljui

The Morkoka ( Russian Моркока ; Yakut Моркуока , Morkuoka ) is an 841 km long right tributary of the Marcha in Siberia ( Russia , Asia ).

course

The Morkoka River flows out in 627  m height the lake Bajyttach (also Byjyttach ), the little north of the Arctic Circle on the Central Siberian mountains belonging Wiljuiplateau is. It flows through this highland in south-eastern, later eastern directions in a valley cut deep into the plateau, meandering in wide arches from the central reaches , always on the territory of the autonomous Republic of Sakha (Yakutia) . The river turns in the lower reaches to the northeast and finally flows at a height of 148  m into the Marcha, a tributary of the Wiljui, about the same width there . The Morkoka is about 200 meters wide near the mouth, but only about one meter deep, and the flow rate is 0.7 m / s.

The most important tributaries are Tangchan (length 131 km) and Morkoka-Marcharata (179 km) from the left.

Hydrography

The catchment area of the Morkoka covers 32,400 km². The Morkoka freezes between the first half of October and the second half of May.

Infrastructure and economy

The Morkoka is not navigable.

The mountain country through which it flows is largely uninhabited; accordingly, there is almost no infrastructure at all. In the middle reaches the river is crossed by the only bridge from the road that connects Lensk an der Lena via Mirny and Tschernyshevsky on the dam of the Vilyui reservoir with the north-lying centers of diamond mining Aichal and Udatschny . The Wiljui Dam is 190 kilometers south, Aichal 180 kilometers north of the Morkoka crossing, where the only small settlement on the river is located.

Individual evidence

  1. a b c Article Morkoka in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)http: //vorlage_gse.test/1%3D078179~2a%3D~2b%3DMorkoka
  2. a b Morkoka in the State Water Directory of the Russian Federation (Russian)
  3. Morkoka at the Chabardino gauge - hydrographic data at R-ArcticNET
  4. Morkoka ( Memento from May 21, 2008 in the Internet Archive ) in the Yakutia Geographical Manual (website of the Ministry of Nature Conservation of the Republic of Sakha (Yakutia); Russian; accessed on February 18, 2011)