Tungnaá
| Tungnaá | ||
 View from the summit of Bláhnúkur near Landmannalaugar. The Tungnaá river shimmers between the hills in the middle distance on the right |
||
| Data | ||
| location | Iceland | |
| River system | Þjórsá | |
| Drain over | Þjórsá → Atlantic Ocean | |
| source |
Kerlingar on the western edge of Vatnajökull 64 ° 23 ′ 40 ″ N , 18 ° 1 ′ 7 ″ W |
|
| muzzle | in the reservoir Sultartangalón or in the river Þjórsá Coordinates: 64 ° 11 ′ 34 ″ N , 19 ° 29 ′ 7 ″ W 64 ° 11 ′ 34 ″ N , 19 ° 29 ′ 7 ″ W |
|
| Mouth height |
297 m
|
|
| length | 129 km | |
| Catchment area | 3040 km² | |
| Left tributaries | Jökulgilkvísl | |
| Right tributaries | Kaldakvísl , Vatnakvísl | |
| Reservoirs flowed through | Hrauneyjafossvirkjun , Sigöldulón | |
The Tungnaá is a river in the south of Iceland .
River course
It rises on the Kerlingar and Tungnaárjökull not far from Bárðarbunga and Hamarinn on the west side of the Vatnajökull ice sheet and is both a source and a glacial river. Most of the water does not come from the glacier, but from springs in the Veiðivötn area .
There Tungnaá is located a short distance from Landmannalaugar .
Then the river runs to the southwest. At the craters of Vestur-Bjalla it turns to the northwest. There are also two power plants there, for which the river was dammed into lakes: Hrauneyjafossvirkjun and Sigölduvirkjun . The Tungnaá finally flows west of the Búðarháls into the valley and flows into the Sultartangalón reservoir of the Þjórsá .
Water level and other data
The river is considered to be quite dangerous due to sudden tidal waves caused by (e.g. volcanic ) glacier melt. The average amount of water at Hrauneyjarfoss is between 120 and 180 m³ / s in summer and between 100 and 160 m³ / s in winter.
The catchment area of the water-rich river covers 3,040 km², 170 km² of which are on glaciers.
The length of the Tungnaá is 129 km.
traffic
In the past, the area could only be accessed with high-wheeled all-terrain vehicles because of the dangerous fords . Due to the power plant projects, numerous roads in the highlands have been expanded. Today there are some bridges.
The Sprengisandsleið highland slope
crosses the river at the Hrauneyjar power station.
Power plants
On the edge of the highlands towards Hrauneyjar there are two power plants for which the river was dammed into lakes: Hrauneyjafossvirkjun and Sigölduvirkjun . The Sultartanga power plant produces 120 MW.
The construction of the power plants has changed the landscape significantly, including a. the waterfalls Hrauneyjarfoss and Ármótafoss have more or less disappeared under the power stations or the reservoirs or have very little water. So you see z. B. the Sigöldufoss is only correct when water is drained from the reservoirs located upstream.
See also
Web links
- Nat.is to Tungnaá (English)
- Fords on the Tungnaá : Ina von Grumbkow's travel report from 1908
Individual evidence
- ↑ a b c d e f g T. Einarsson, H. Magnússon (eds.): Íslandshandbókin. Náttúra, saga og sérkenni. 2. bindi. Örn og Örlygur, Reykjavík 1989, pp. 908f.
- ↑ a b cf. Ferðakort (Ed.): Ísland Vegaatlas. Reykjavík 2006, p. 4.
- ↑ Landsvirkjun ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. Retrieved September 5, 2012
- ↑ Landsvirkjun ( Memento of the original from September 13, 2010 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 5, 2012.
- ↑ Landmælingar Íslands (Ed.): Vegahandbókin. 2006, p. 529f.
- ↑ Sigöldufoss ŠEST á á ný fullu AFLI. In: Vísir. July 19, 2009, accessed September 5, 2012.
