Ischl (Traun)
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Ischl Ischler Ache (upper course: Ache) |
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 The Ischl in Bad Ischl |
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| Data | ||
| Water code | AT : HZB: 2-122-090-033, -035 | |
| location | Salzburg , Upper Austria | |
| River system | Danube | |
| Drain over | Traun → Danube → Black Sea | |
| origin |
Wolfgangsee near Strobl 47 ° 43 ′ 20 ″ N , 13 ° 29 ′ 9 ″ E |
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| Source height | 540 m above sea level A. | |
| muzzle | in Bad Ischl in the Traun Coordinates: 47 ° 42 '53 " N , 13 ° 37' 36" E 47 ° 42 '53 " N , 13 ° 37' 36" E |
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| Mouth height | 463 m above sea level A. | |
| Height difference | 77 m | |
| Bottom slope | 6.2 ‰ | |
| length | 12.4 km | |
| Catchment area | 252 km² | |
| Discharge at the Bad Ischl A Eo gauge: 251.8 km² Location: 1.5 km above the mouth |
NNQ (03.11.1999) MNQ 1976–2009 MQ 1976–2009 Mq 1976–2009 MHQ 1976–2009 HHQ (12.08.2002) |
1.39 m³ / s 2.53 m³ / s 10.9 m³ / s 43.3 l / (s km²) 129 m³ / s 278 m³ / s |
| Left tributaries | Tiefenbach, Schwarzenbach, Russbach | |
| Right tributaries | Weißenbach, Schöffaubach, Nussenbach, Radaubach, Zimnitzbach | |
The Ischl , also the Ischler Ache or on the upper reaches just the Ache , today also the Ischl river in isolated cases , is a river in the Salzkammergut . It drains the Wolfgangsee near Strobl and flows into the Traun after around 12 km near Bad Ischl .
Run
The Ischl leaves the Wolfgangsee at its eastern end at Strobl and flows relatively straight from west to east. For the first 5 kilometers it forms the municipal boundary between St. Wolfgang in the north and Strobl in the south and thus the state border between Upper Austria and Salzburg . It then flows entirely in the municipality of Bad Ischl in Upper Austria. It breaks through the threshold to the Ischler basin between Jainzenberg and Kalvarienberg and flows north of the city center of Bad Ischl into the Traun.
The Ischl flows in a relatively wide valley called the Wolfgang / Ischl valley . Their mean gradient is 5.4 ‰. Tie Talung was formed by the Wolfgangsee glacier of the Traungletscher in the last ice ages. It separates the Osterhorn group south from the Schafberg group (Schafberg-Leonsberg-Zug) north.
The B158 Wolfgangseestrasse runs largely parallel to the river . The Ischlerbahn (Salzkammergut Local Railway, SKLB) ran here from 1890 to 1957 .
Tributaries
Larger tributaries with catchment areas of more than 10 km² are the Weißenbach from the Postalm region (catchment area: 45.6 km²) and the Schöffaubach (11.7 km²) from the right, as well as the Schwarzenbach from the Schwarzensee (12 km²) and the Rußbach (21 km²) ) from the left.
Surname
The name of the river first appears in 829 as Iscula . A Roman inscription stone from Bad Ischl mentions a Roman customs station Esc , which is interpreted as the abbreviation of statio Escensis and Latinized form of a pre-Roman name and is also associated with the name Ischl. There are numerous interpretations of the name, for example it is traced back to the Celtic word esk (water) or isk (fish), or as a derivative of the Indo-European root ei (walk, run, run). Other interpretations derive the name from the Latin esca (food, bait, bait, carrion) or the Romanic iscla (au).
Economic use
Since the beginning of the 20th century, the Ischl with its rich water flow has been used to generate energy. The Weinbach run-of- river power plant supplies a standard energy capacity of 2.37 GWh per year, while the Schönburg-Hartenstein I and II power plants are located on a further diversion route.
Construction and the environment
The Ischl is regulated in long sections by longitudinal barriers and its natural course is impaired. In several places, however, there are still wetlands . The Pfandler Au in the municipality of Bad Ischl is a large, alluvial forest with pine trees. The shrub layer is made up of juniper in particular , and many orchids can be found in the undergrowth . The Pfandler Au is designated as a landscape protection area; such a pine meadow can only be found in Upper Austria at the Alm . The water quality class of the Ischl is I-II.
literature
- Office of Upper Austria. Provincial government, nature conservation department (ed.): Nature and landscape - models for Upper Austria. Volume 31: Salzkammergut-Talungen room unit . Revised Version, Linz 2007 ( PDF; 5.3 MB )
Web links
Individual evidence
- ↑ a b Federal Hydraulic Engineering Administration, Office of Upper Austria. State government (ed.): Protection water management hazard zone plan Ischl River from km 0.000 to km 12.362 . Gmunden 2011 ( PDF; 1.2 MB ( Memento of the original from June 28, 2011 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 then remove this notice. )
- ↑ Federal Ministry for Agriculture, Forestry, Environment and Water Management (ed.): Hydrographisches Jahrbuch von Österreich 2009. 117th volume. Vienna 2011, PDF (12.1 MB) on bmlrt.gv.at (yearbook 2009)
- ↑ Officially, the body of water at the end of Lake Wolfgang is called Ischler Ache , HZB 2-122-090-033, or just Ache (Austrian map), and from then on Ischl HZB 2-122-090-035 ff.
- ↑ n Differentiation from the market town of Ischl, which only got the addition of Bad in the middle of the 20th century . These names were common until the 19th century, up to and including the Danube River , and have been used in official documents to this day, especially for the place of the same name.
- ↑ City Office Bad Ischl: The name Ischl
- ^ Energie AG: Weinbach run-of-river power plant
- ^ Province of Upper Austria, nature conservation database: Pfandler Au
- ↑ Federal Ministry of Agriculture, Forestry, Environment and Water Management (ed.): Saprobiological water quality of the flowing waters of Austria. As of 2005. ( PDF; 1 MB ( Memento of the original from December 22, 2015 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 then remove this note. )
