Roseg glacier
| Roseg glacier | ||
|---|---|---|
 Roseg glacier from the north |
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| location | Canton of Graubünden , Switzerland | |
| Mountains | Bernina group | |
| Type | Valley glacier | |
| length | 3.6 km (2012) | |
| surface | 8.79 km² (1991) | |
| Exposure | North | |
| Altitude range | 3650 m above sea level M. - 2160 m above sea level M. (2005) | |
| Ice volume | 0.36 ± 0.09 km³ (1991) | |
| Coordinates | 784 657 / 138993 | |
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| drainage | Rosegbach , Flaz , Inn | |
The Roseggletscher (Romansh Vadret da Roseg , say va'dret since rozetɕ ) is a glacier on the north side of the Bernina in the canton of Grisons . In 2012 a length of 3.6 km was determined. In its nutrient area , the glacier is connected to the Sella glacier ( Vadret da la Sella ) to the east . Both glaciers together covered an area of around 8.8 km² in 1991.
location
The nutrient area of the Roseg Glacier is a little over 3500 m above sea level. M. on the ridge between Piz Glüschaint and Dschimels (Italian: I Gemelli ), over which the border between Italy and Switzerland runs. The Sella glacier begins below the steep western flank of Piz Roseg and that on the north side of Piz Sella . Both glaciers extend north into Val Roseg .
The individual tongues of the Roseg and Sella glaciers extend (as of 2018) roughly to the edge of the terrain above the Lej da Vadret , into which several mountain streams with meltwater from the glacier flow. The Lej da Vadret, a so-called tongue pool lake, is approximately 1500 m long and 300 m wide. It was created in the middle of the 20th century when the Roseg Glacier and the Tschierva Glacier to the north-east of it separated. Behind the former central moraine, the orographically left lateral moraine of the Tschiervagletscher, the sea formed in the period that followed. In August 1954, the lake's water level rose rapidly by 85 centimeters due to melting snow and heavy rainfall. As a result, there was severe erosion at the lake outlet and the additional water masses quickly flowed over the Rosegbach , Flaz and Inn until the water level had sunk back to about the original level. The major flood damage in the Upper Engadine during the summer of 1954 was partly caused by this.
During the Little Ice Age , the Roseg and Tschierva glaciers extended as far as the vicinity of today's Hotel Roseg .
On the slope west of the Roseg Glacier at an altitude of 2610 m is the Chamanna Coaz , a hut belonging to the Swiss Alpine Club .
literature
- Jürg Alean: Glaciers of the Alps . Haupt, Bern 2010, ISBN 978-3-258-07608-9 .
Web links
- Roseggletscher on the ETHorama platform
- Map section at map.geo.admin.ch
- Images and comparison maps on Glaciers-online.net
Individual evidence
- ^ Research institute for hydraulic engineering, hydrology and glaciology (VAW) of the ETH Zurich (ed.): Roseggletscher. In: Swiss Glacier Measurement Network. ( ethz.ch , also as PDF , accessed on October 24, 2014).
- ↑ a b Daniel Farinotti, Matthias Huss, Andreas Bauder, Martin Funk: An estimate of the glacier ice volume in the Swiss Alps. In: Global and Planetary Change. 68: 225-231, 2009 ( online ; PDF; 756 kB).
- ^ WGMS: Fluctuations of Glaciers Database. World Glacier Monitoring Service, Zurich 2013 ( DOI: 10.5904 / wgms-fog-2013-11 ), accessed on December 11, 2013
- ^ Research institute for hydraulic engineering, hydrology and glaciology (VAW) of the ETH Zurich : Vadret da Tschierva, Vadret da Roseg. In: Glacier Natural Hazards. ( ethz.ch ( page no longer available ), also as a PDF ( page no longer available )).