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Mandalselva
Mandalselva (English: Mandal River, Old Norse: Mǫrn) is a river originating in the mountains between Ose in Setesdal and Upper Sirdal, and it runs through the counties of Aust-Agder and Vest-Agder and out to the North sea river mouth by Mandal, Norway. Mandalselva is long and flows through the municipalities Åseral, Audnedal, Marnardal and Mandal. The largest tributaries are Monn, Logna, Skjerka, Kosåna, Logåna and Røyselandsbekken. Skjerka, Monn and Logna runs all out in the lake Øre in Åseral, and from the mouth of the Øre is the name of the river ''Mandalselva''.〔(Mandalselva ) Store norske leksikon in Norwegian〕 == Hydropower development == Hydropower development of the river on a larger scale started in 1930. At present there are six power plants in the river: Logna, Smeland, Skjerka, Håverstad, Bjelland and Laudal. The drainage basin is . Mean flow of water in the river is . In flood periods at spring and autumn water flow can be far greater. The highest streamflow in recent times were measured in October 1987, when it passed about at the measuring point Kjølemo in Holum.〔(NVE: Flomsonekartprosjektet Flomberegning for Mandalselva (022.Z) in Norwegian )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Mandalselva」の詳細全文を読む
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