Great wasteland

Great wasteland
	The Great Ödsee against the Hetzaukamm
Geographical location	Upper Austria , Austria
Tributaries	no above ground
Drain	underground to Brunnbach → Straneggbach → Alm → Traun → Danube → Black Sea
Location close to the shore	Habernau in the Almtal
	Data
Coordinates	47 ° 45 '50 " N , 14 ° 1' 5" E Coordinates: 47 ° 45 '50 " N , 14 ° 1' 5" E
Altitude above sea level	692 m above sea level A.
surface	8.1 ha
length	560 m
width	380 m
scope	1.9 km
Maximum depth	22 m
particularities	Nature reserve

The Große Ödsee is a forest-lined mountain lake in the Salzkammergut (municipality of Grünau im Almtal , Upper Austria ).

Geography and hydrology

The Great Ödsee lies in the Hetzau, a side valley of the Almtal . To the south of it are the Hochkogel, Großer Priel and Schermberg peaks belonging to the Dead Mountains . The lake can be reached from the Almtal (6 km long road to the Almtalerhaus , which can be used from early summer until the beginning of the hunting season in mid-September) , just like the Kleiner Ödsee, which is around 150 m to the south . Both lakes are easily accessible on hiking trails. Both are popular as bathing lakes in warm summers.

The Great Ödsee is around 8 hectares in size and up to 22 m deep and is surrounded by steeply sloping, densely wooded limestone and moraine banks . In some places there are also gravel and sand banks. The lake has two deep basins in the south with a depth of over 20 m and, separated by a shallower part with a depth of only 3.5 m, in the northern part two basins up to 7 m deep.

The lake is fed by three small source streams, but primarily underground. The drainage also takes place underground to the Straneggbach. The retention time of the water is 174 days. Like the small Ödsee, the Great Ödsee has significant level fluctuations over 1 m. The water level normally rises in winter and falls in summer, especially because the surrounding moraine material does not allow inflows during drought and at the same time withdraws water from the lake.

Emergence

The Ödseen lie in the area of the moraines of the Würm glacial period , which go back to the glacier that pulled down from the Prielgruppe into the Hetzau. Moraine remains can be found above the lakes. In the Hetzau there were once lakes in five places, the largest of which probably had an area of over 1 km². While the other lakes silted up , the two Ödseen were preserved because they are protected by moraines from being buried by the Straneggbach.

ecology

The Great Ödsee is largely unpolluted due to its location. It has a great depth of view in summer and is classified as oligotrophic . The main species of fish include brown trout , brook trout and arctic char . The Great Ödsee is also designated as a nature reserve ( N012 , 8.0943 ha).

Web links

Commons : Great Ödsee - collection of images, videos and audio files

Entry on Großer Ödsee in the Austria Forum (in the AEIOU Austria Lexicon )

Individual evidence

↑ ^a ^b ^c ^d measured on the local map / orthophoto, DORIS interMAP online, slightly different in the Austrian map
↑ Tiefenkote Austrian card ÖK50 ( AMAP online)
↑ The Great Ödsee was also officially designated as a bathing lake. He hasn't been for a while; See water quality of bathing waters: Southeastern lakes , provincial government of Upper Austria.
↑ ^a ^b ^c ^d Felix Göhlert: Hydrographic and hydrobiological investigations of the Ödseen in Upper Austria. In: Yearbook of the Upper Austrian Museum Association. Society for regional studies, year 83, Linz 1930, pp. 339–354 ( PDF (1.2 MB) on ZOBODAT ).
^ ^A ^b Josef Eisner: Upper Austria nature reserves. Existence and threat, management options. Interim report on behalf of the Upper Austria. State government. 1992 ( PDF; 2.3 MB )
↑ ^a ^b Office of Upper Austria. Provincial government (ed.): Nature and landscape / models for Upper Austria. Volume 32: Salzkammergut-Voralpen spatial unit. Revised Version, Linz 2007 ( PDF, 943 kB )
↑ Großer Ödsee , Province of Upper Austria, Geographical Nature Conservation Information System (GENISYS)

[DORIS-1] sured on the local map / orthophoto, DORIS interMAP online, slightly different in the Austrian map

[AMAP-2] Tiefenkote Austrian card ÖK50 ( AMAP online)

[3] The Great Ödsee was also officially designated as a bathing lake. He hasn't been for a while; See water quality of bathing waters: Southeastern lakes , provincial government of Upper Austria.

[goehlert-4] Felix Göhlert: Hydrographic and hydrobiological investigations of the Ödseen in Upper Austria. In: Yearbook of the Upper Austrian Museum Association. Society for regional studies, year 83, Linz 1930, pp. 339–354 ( PDF (1.2 MB) on ZOBODAT ).

[eisner-5] A ^b Josef Eisner: Upper Austria nature reserves. Existence and threat, management options. Interim report on behalf of the Upper Austria. State government. 1992 ( PDF; 2.3 MB )

[natur+landsch-6] Office of Upper Austria. Provincial government (ed.): Nature and landscape / models for Upper Austria. Volume 32: Salzkammergut-Voralpen spatial unit. Revised Version, Linz 2007 ( PDF, 943 kB )

[7] Großer Ödsee , Province of Upper Austria, Geographical Nature Conservation Information System (GENISYS)