Orne (river)
Template:Short description Template:For Template:Infobox river The Orne ({{#invoke:IPA|main}}) is a river in Normandy, within northwestern France. It is Template:Convert long.<ref name=sandre>Template:Sandre</ref> It discharges into the English Channel at the port of Ouistreham. Its source is in Aunou-sur-Orne, east of Sées. Its main tributaries are the Odon and the Rouvre.
GeographyEdit
The Orne flows through the following departments and towns:
- Orne (named after the river): Sées, Argentan
- Calvados: Thury-Harcourt, Saint-André-sur-Orne, Caen, Ouistreham
It also flows through the area known as Suisse Normande.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Its longest tributaries are, from source to mouth:<ref name=sandre/>
NameEdit
The name of the Orne in Normandy, which is referred to as the Olinas by Ptolemy,<ref>Template:Cite DGRG</ref> is a homonym of Fluvius Olne, the Orne saosnoise in Sarthe, which Xavier Delamarre traces back to the Celtic olīnā (elbow).
Hydrology and water qualityEdit
The waters of the Orne are typically moderately turbid and brown in colour. Its pH level has been measured at 8.5<ref>Hogan, C Michael, Water quality of freshwater bodies in France, Lumina Press, Aberdeen 2006.</ref> at the town of St. Andre sur Orne where summer water temperatures approximate Template:Convert. Electrical conductivity of the water has been measured at 30 microsiemens per centimeter.Template:Citation needed