Salvatnet

Salvatnet[2] is a lake in the municipalities of Namsos and Nærøysund in Trøndelag county, Norway. With its deepest depth of 464 metres (1,522 ft), it is Norway's and Europe's second-deepest lake, after Hornindalsvatnet. Alternate sources give the depth as either 464 metres (1,522 ft) or 482 metres (1,581 ft) at the deepest point. The lake sits very close to the ocean, about 9 metres (30 ft) above sea level at the surface and reaches to a depth of 455 metres (1,493 ft) below sea level. It is a very large lake with an area of 44.77 square kilometres (17.29 sq mi), a volume of 6.87 cubic kilometres (1.65 cu mi), and a shoreline that is 105.61 kilometres (65.62 mi) around.[3]

Salvatnet
Salvatnet
Location of the lake
Salvatnet
Salvatnet (Norway)
LocationNamsos and Nærøysund, Trøndelag
Coordinates64.7108°N 11.5546°E / 64.7108; 11.5546
TypeMeromictic lake
Basin countriesNorway
Max. length22 kilometres (14 mi)
Max. width6 kilometres (3.7 mi)
Surface area44.77 km2 (17.29 sq mi)[1]
Average depth156 metres (512 ft)[1]
Max. depth464 metres (1,522 ft)[1]
Water volume6.87 km3 (1.65 cu mi)[1]
Shore length1105.61 kilometres (65.62 mi)
Surface elevation9 metres (30 ft)
ReferencesNVE and Seppälä[1]
1 Shore length is not a well-defined measure.

Salvatnet is a meromictic lake, meaning that the water is permanently stratified, often without oxygen in the lower depths (bottom water) due to density gradient and a lack of turnover. A meromictic lake often preserves records of the geologic past. The lower layer of the lake is highly saline and as a result denser than the higher levels of water. Other meromictic lakes in Norway with old seawater in the lower depths include Kilevann, Tronstadvann, Botnvatnet, Rørhopvatnet, and Rørholtfjorden.

See also
  • List of lakes in Norway

References
  1. Seppälä, Matti (2005). The Physical Geography of Fennoscandia. Oxford University Press. p. 145. ISBN 9780199245901.
  2. "Fakta om stedsnavn". kartverket.no (in Norwegian). Kartverket. Retrieved 2019-05-26.
  3. Store norske leksikon. "Salsvatnet" (in Norwegian). Retrieved 2011-09-22.


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