Ujandina

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Ujandina
Уяндина
Уйаандьы
Data
Water code RU :  18050000312117700061858
location Sakha Republic (Yakutia) ( Russia )
River system Indigirka
Drain over Indigirka  → Arctic Ocean
confluence von Irgitschjan and Baky
69 ° 18 ′ 15 ″  N , 140 ° 54 ′ 25 ″  E
Source height approx.  170  m
muzzle Indigirka coordinates: 68 ° 24 ′ 15 "  N , 145 ° 49 ′ 56"  E 68 ° 24 ′ 15 "  N , 145 ° 49 ′ 56"  E
Mouth height 19  m
Height difference approx. 151 m
Bottom slope approx. 0.26 ‰
length 586 km
Catchment area 41,000 km²
Left tributaries Dachtardaach , Schjoltaja , Chatyngnach , Chatschimtscher , Oimjakon
Right tributaries Tirechteech , Inatsch , Taryng-Jurech , Kalgyn , Tylyndja , Buor-Jurech
Course of the Ujandina (Уяндина) in the catchment area of ​​the Indigirka

Course of the Ujandina (Уяндина) in the catchment area of ​​the Indigirka

The Ujandina ( Russian Уяндина , Yakut Уйаандьы ) is a left tributary of the Indigirka in the Republic of Sakha (Yakutia) in eastern Siberia ( Russia ).

The Ujandina arises at the confluence of the Irgitschjan and Baky rivers . It flows first in a southerly direction through the mountains and later turns to the east. In the lower reaches of the Ujandina there are numerous bends in the river. It reaches the lowlands in Abyjski ulus and after 586 km flows into the Indigirka on the left. The Ujandina drains an area of ​​41,000 km². From October to the end of May the Ujandina is usually covered with ice. The river floods between June and early September .

Individual evidence

  1. ↑ Soviet General Staff Map 1: 200,000. Sheet R-54-XXVII, XXVIII. Edition 1989
  2. ↑ Soviet General Staff Map 1: 200,000. Sheet R-55-XXXI, XXXII. Edition 1989
  3. ↑ a b c Article Ujandina in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)http: //vorlage_gse.test/1%3D115074~2a%3DUjandina~2b%3DUjandina
  4. ↑ Ujandina in the State Water Register of the Russian Federation (Russian)
  5. ↑ a b Article Ujandina in the Great Soviet Encyclopedia (BSE) , 2nd edition 1950–1960. Volume 44, p. 477 (Russian; online in DjVu format)
  6. ↑ The catchment area of ​​177,000 km² specified in the last, 3rd edition of the Great Soviet Encyclopedia as well as in the water register of the Russian Federation - both based on a monograph on the hydrology of the Soviet Union from the 1960s - is obviously wrong: the Indigirka has only one Catchment area of ​​around 360,000 km², the Ujandina, however, significantly less than half of it (see map).