Outer Weißenbach
| Outer Weißenbach | ||
 Gravel banks on the Outer Weißenbach |
||
| Data | ||
| location | Salzkammergut , Upper Austria | |
| River system | Danube | |
| Drain over | Attersee → Ager → Traun → Danube → Black Sea | |
| source | below the Lower Rehstatt in the Höllengebirge 47 ° 47 ′ 5 ″ N , 13 ° 37 ′ 1 ″ E |
|
| Source height | 725 m above sea level A. | |
| muzzle | near Weißenbach am Attersee in the Attersee Coordinates: 47 ° 47 '51 " N , 13 ° 31' 42" E 47 ° 47 '51 " N , 13 ° 31' 42" E |
|
| Mouth height | 469 m above sea level A. | |
| Height difference | 256 m | |
| Bottom slope | 29 ‰ | |
| length | 8.8 km | |
| Catchment area | 31.5 km² | |
| Discharge at the Weißenbach am Attersee A Eo gauge : 31.2 km² Location: 800 m above the mouth |
NNQ (11/28/1977) MNQ 1976–2013 MQ 1976–2013 Mq 1976–2013 MHQ 1976–2013 HHQ (07/05/2010) |
80 l / s 530 l / s 2.46 m³ / s 78.8 l / (s km²) 41.9 m³ / s 106 m³ / s |
| Left tributaries | Wild ditch, falling water | |
| Right tributaries | Gimbach, Schwarzenbach | |
| Communities | Bad Ischl , Steinbach am Attersee | |
The Outer Weißenbach is an almost 9 km long tributary of the Attersee in the Salzkammergut in Upper Austria .
Run and landscape
The Äußere Weißenbach rises below the Niedere Rehstatt in the Höllengebirge and then flows south until it reaches the valley floor of the Weißenbach Valley at around 550 m . There it turns west, while east of a valley watershed the Mitterweißbach drains south-east to the Traun . The Outer Weißenbach flows in a meandering, constantly shifting and branching course through the Weißenbachtal. To the southwest of the village Weißenbach am Attersee , which lies on the heaped alluvial cone , it flows into the Attersee at the state border with Salzburg .
Hydrology
The catchment area of the Outer Weißenbach is 31.5 km², the highest point in it is the Grünalmkogel at 1821 m above sea level. A.
The mean discharge at the Weißenbach am Attersee gauge, 800 m above the mouth, is 2.46 m³ / s. The runoff regime is a nival transitional regime, the monthly mean of the month with the highest runoff, May, at 3.93 m³ / s, is almost three times as high as that of the least runoff month, February, at 1.40 m³ / s.
The unusually high discharge of 78.8 l / (s · km²) can be explained by the fact that it is a karst area and the actual underground catchment area is considerably larger than that corresponding to the surface relief. For example, the Haleswiessee drains underground to the Outer Weißenbach and not, as would be expected from the above-ground topography, to the south to the Ischl .
ecology
The Outer Weißenbach is largely natural and has meanders , relocation stretches, gravel and sandbanks , falls, branches, oxbow lakes and dead wood . Silver willows and alpine east grow on the surrounding gravel banks , the narrow to alluvial forest-like riparian wood consists of purple willow , lavender willow , black willow , common ash , sycamore maple , red beech , common spruce and red honeysuckle . In the upper reaches of the strongly meandering Weißenbach crosses the Röhringmoos, a spring moor which, in addition to alders and spruces, consists of species such as sedges , swallowwort gentian , blue pipegrass and ledges .
The fish species perlfish and sea dove living in the Attersee use the lower reaches of the Weißenbach as a spawning area , which is therefore included in the Natura 2000 area Mondsee and Attersee .
The water quality class is I-II throughout the course.
Individual evidence
- ↑ a b c d Digital Upper Austrian Room Information System (DORIS)
- ^ A b c Ministry for an Austria worth living in (ed.): Hydrographisches Jahrbuch von Österreich 2013. 121st volume. Vienna 2015, PDF (9.0 MB) on bmlrt.gv.at (2013 yearbook) - data and evaluations, p. OG 185 (PDF; 22.7 MB)
- ^ HJ Laimer, H. Wimmer: The underground drainage of Haleswies-Poljes (Upper Austria). In: Contributions to Hydrogeology Volume 59 (2012), pp. 95-104
- ^ Office of Upper Austria. Provincial government, nature conservation department (ed.): Natural area mapping Upper Austria - landscape survey of the municipality of Steinbach am Attersee . Final report, Attnang-Puchheim 2005 ( PDF; 6.2 MB )
- ^ Office of Upper Austria. Provincial government (ed.): Nature and landscape / models for Upper Austria. Volume 12: Attersee-Mondsee basin spatial unit. Revised Version, Linz 2007, p. 42 ( PDF; 4.6 MB ( Memento of the original from March 5, 2014 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and remove then this note. )
