Niwa (river)

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Niwa
Нива, Njavejohka
Река Нива.jpg
Data
Water code RU :  02020000312101000009564
location Murmansk Oblast ( Russia )
River system Niwa
origin Lake Imandra
67 ° 23 ′ 59 ″  N , 32 ° 34 ′ 34 ″  E
Source height 127  m
muzzle near Kandalakscha in Kandalakscha Bay ( White Sea ) Coordinates: 67 ° 7 '48 "  N , 32 ° 25' 5"  E 67 ° 7 '48 "  N , 32 ° 25' 5"  E
Mouth height 0  m
Height difference 127 m
Bottom slope 3.5 ‰
length 36 km
Catchment area 12,830 km²
Discharge at the Niwa GES 1
A Eo gauge : 12,300 km²
Location: 33.5 km above the mouth 		MQ 1960/1985
Mq 1960/1985
 		154 m³ / s
12.5 l / (s km²)
Discharge at the Niwa GES 3
A Eo gauge : 12,800 km²
Location: 6.2 km above the mouth 		MQ 1956/1985
Mq 1956/1985
 		163 m³ / s
12.7 l / (s km²)
Flowing lakes Pinosero
Medium-sized cities Kandalaksha
Small towns Polyarnye Sori
Course of the Niwa (Russian map)

Course of the Niwa (Russian map)

The Niwa ( Russian Нива , North Sami : Njavejohka ) is a river in Murmansk Oblast in Russia .

Its length is 36 km and its catchment area is 12,830 km². The mean discharge 15 km above the mouth is 164 m³ / s. The Niwa forms the outflow of Lake Imandra to Kandalaksha Bay , the northwest part of the White Sea . The river flows from north to south. It flows through Lake Pinosero ( ⊙ ). The city of Kandalaksha is located on the estuary of the river.

Use of hydropower

Between 1936 and 1954 three hydropower plants were built along the Niwa. Their total output is 240 MW , the annual output 1,390 GWh . They are operated by TGC-1 .

Surname completion
position		 Power
in MW		 Annual
output
in GWh		 Number of
turbines		 Reservoir
Niwa HPP-1 1953 26th 129 2 Imandra
Niwa HPP-2 1938 60 410 4th Pinosero
Niwa HPP-3 1949 155.5 850 4th Plesosero

Web links

Commons : Niwa  - collection of images, videos and audio files

Individual evidence

  1. ↑ Article Imandra in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)http: //vorlage_gse.test/1%3D053101~2a%3DImandra~2b%3DImandra
  2. ↑ Article Niwa in the Great Soviet Encyclopedia (BSE) , 3rd edition 1969–1978 (Russian)http: //vorlage_gse.test/1%3D081537~2a%3DNiwa~2b%3DNiwa
  3. ↑ a b Niwa in the State Water Register of the Russian Federation (Russian)
  4. ↑ Niwa at the Niwa GES 1 gauge - hydrographic data at R-ArcticNET
  5. ↑ Niwa at the Niwa GES 3 gauge - hydrographic data at R-ArcticNET
  6. ↑ HPP