{{Short description|Lake in Trøndelag, Norway}} {{Infobox body of water |name = Salvatnet |native_name = |native_name_lang = |other_name = |image = |caption = |image_bathymetry = | mapframe = yes | mapframe-zoom = 9 | mapframe-caption = Interactive map of the lake |coordinates = {{coord|64.7108|11.5546|region:NO_type:waterbody|display=inline,title}} |location = Namsos Municipality, Trøndelag |type = glacial fjord meromictic lake, moraine-dammed |inflow = Ambudalselva, Eidelva (Sakselva), Helsåa, Hendelva and Nedre Straumen |outflow = Moselva |catchment = {{convert|431.9|km2|sqmi|abbr=on}} |basin_countries = Norway |date-built = |date-flooded = |length = {{convert|25|km|mi|abbr=on}} |width = {{convert|3|km|mi|abbr=on}} |area = {{convert|44.96|km2|sqmi|abbr=on}}<ref name="Sepp2005" /> |depth = {{convert|155|m|ft|abbr=on}}<ref name="Sepp2005" /> |max-depth = {{convert|482|m|ft|abbr=on}}<ref name="Sepp2005" /> |volume = {{convert|6.97|km3|abbr=on}}<ref name="Sepp2005" /> |residence_time = |shore = {{convert|105.61|km|mi|abbr=on}} |elevation = {{convert|9|m|ft|abbr=on}} |frozen = |islands = Storøya |cities = |reference = NVE<ref name="nve">{{Cite web |title=Innsjødatabase |url=https://temakart.nve.no/link/?link=innsjodatabase |access-date=2024-11-08 |website=NVE.no |language=no}}</ref> and Seppälä<ref name="Sepp2005">{{Cite book |last=Seppälä |first=Matti |url=https://books.google.com/books?id=q33WekTp7tgC&pg=PA145 |title=The Physical Geography of Fennoscandia |date=2005 |publisher=Oxford University Press |isbn=9780199245901 |page=145}}</ref> }}
'''Salvatnet'''<ref>{{Cite web |title=Fakta om stedsnavn |url=https://stadnamn.kartverket.no/fakta/136306 |access-date=2019-05-26 |website=kartverket.no |publisher=Kartverket |language=no}}</ref> is a lake in Namsos Municipality in Trøndelag county, Norway. With its deepest depth of {{convert|482|m}}, it is Norway's and Europe's second-deepest lake, after Hornindalsvatnet. Alternate sources give the depth as either {{convert|464|m}} (old manual method) or {{convert|482|m}} (modern echo sounding method) at the deepest point. The lake sits close to the Norwegian Sea, about {{convert|9|m}} above sea level at the surface and reaches to a depth of {{convert|473|m}} below sea level. It is a large lake with an area of {{convert|44.96|km2}}, a volume of {{convert|6.97|km3}}, and a shoreline that is {{convert|105.61|km}} around.<ref name="snl">{{Cite web |last=Store norske leksikon |author-link=Store norske leksikon |title=Salsvatnet |url=http://snl.no/Salsvatnet |access-date=2011-09-22 |language=no}}</ref>
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 Botnvatnet, Kilevann, Rossfjordvatnet, Rørholtfjorden an arm of the lake Tokke, Rørhopvatnet, Tronstadvann, and Øvervatnet.
==See also== *List of lakes in Norway
==References== {{reflist}}
{{Lakes in Norway}} {{authority control}}
Category:Namsos Municipality Category:Lakes of Trøndelag Category:Meromictic lakes
{{Trøndelag-lake-stub}}