Moma (river)

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Moma
Мома
Location of the Moma in the catchment area of ​​the Indigirka

Location of the Moma in the catchment area of ​​the Indigirka

Data
Water code RU18050000212117700050518
location Sakha Republic (Yakutia) ( Russia )
River system Indigirka
Drain over Indigirka  → Arctic Ocean
source Tscherski Mountains , Momagebirge
64 ° 51 ′ 16 ″  N , 147 ° 21 ′ 5 ″  E
Source height 700  m
muzzle Indigirka coordinates: 66 ° 26 '10 "  N , 143 ° 10' 55"  E 66 ° 26 '10 "  N , 143 ° 10' 55"  E
Mouth height 192  m
Height difference 508 m
Bottom slope 1.3 ‰
length 406 km
Catchment area 30,200 km²
Discharge at the gauge Sasir
A Eo : 1340 km²
Location: 377 km above the mouth
MQ 1971/1994
Mq 1971/1994
11 m³ / s
8.2 l / (s km²)
Left tributaries Tirechtjach , Buordach , Erikit
Right tributaries Taryn-Jurjach
Navigable not navigable

The Moma ( Russian Мома , yakut. Муома / Muoma) is a 406 km long right tributary of the Indigirka in the Sakha Republic in the Far East of Russia . The Moma Mountains north of her valley, the Ulus Moma , to which her valley belongs, are named after her.

The MOMA occurs in approximately 700  m height in the valley between chersky range ( Ulachan-Tschistai Crest ) in the southwest and Momagebirge in the northeast of several smaller tributaries . It then flows in a north-westerly to westerly direction through the Moma-Selennjach depression between the Tscherski Mountains and the Momagebirge, named after the Moma, until it flows into the Indigirka a little south of the Arctic Circle (at 192  m altitude).

The Moma catchment area covers 30,200 km². Near the mouth, the river is up to 250 meters wide and 2.5 meters deep; the flow rate is 1.6 m / s. The most important tributaries are Taryn-Jurjach (length 88 km) from the right and Tirechtjach (160 km), Buordach (119 km) and Erikit (184 km) from the left.

The moma freezes from late September / early October to late May / early June.

The lower and middle reaches of the Moma are rich in rocky rapids , the river branches into many arms here. The river is not navigable.

Over its entire length, the Moma flows through the district of the Ulus Moma ( Russian Момский улус, yakut. Муома улууһа) of the Sakha Republic (Yakutia), which is named after it . The ulus administration center Chonuu is located at the mouth of the Moma , and the village of Sassyr on the upper reaches .

swell

  • SE Mostachow et al .: Jakutskaja ASSR . Jakutsk, 1980 (Russian)

Individual evidence

  1. a b Article Moma in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)http: //vorlage_gse.test/1%3D077731~2a%3DMoma~2b%3DMoma
  2. a b Moma in the State Water Register of the Russian Federation (Russian)
  3. Moma at the Sasir gauge - hydrographic data from R-ArcticNET