|• location||Lake Balaton|
|Length||124 km (77 mi)|
|Basin size||14,693 km2 (5,673 sq mi)|
|• average||39 m3/s (1,400 cu ft/s)|
|Progression||Danube→ Black Sea|
The Sió or Sió-csatorna (Sió-Channel) is a fully regulated river in midwest Hungary. It is the outlet, at the eastern end, of Lake Balaton, flowing out of the lake in Siófok. It flows into the river Danube near the city of Szekszárd. Sió flows through the Hungarian counties Somogy, Fejér and Tolna, its main tributaries are Kapos from the right and Sárvíz from the left. It is 124 km (77 mi) long and its basin size is 14,693 km2 (5,673 sq mi). The drainage basin of Sió (including Balaton) covers more than a third of Transdanubia. Its average discharge at the mouth is 39 m3/s (1,400 cu ft/s).
- "Regulation of the Sió and the Sárvíz". Sulinet, educational site of the Hungarian government.
- SIÓ-CSATORNA www.siocsatorna.hu, accessed 7 May 2021
- European Space Agency (26 July 2019). "Image: Lake Balaton in western Hungary from orbit". Phys.Org.
- Słowik, Marcin; Dezső, József; Kovács, János; Gałka, Mariusz (January 2020). "The formation of low-energy meanders in loess landscapes (Transdanubia, central Europe)". Global and Planetary Change. 184: 103071. doi:10.1016/j.gloplacha.2019.103071.
- "Danube River Basin District, Part A - Roof Report" (PDF). ICPDR. April 2004. p. 12.
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