Gurgler Ache

Gurgler Ache
The Gurgler Ache above Obergurgl
Data
Water code	AT : 2-8-92-30
location	Ötztal Alps , Imst district , Tyrol
River system	Danube
Drain over	Ötztaler Ache  → Inn  → Danube  → Black Sea
origin	Gletschermund am Gurgler Ferner 46 ° 49 ′ 17 ″  N , 10 ° 58 ′ 35 ″  E
Source height	at  2420  m above sea level A.
confluence	near Zwieselstein with the Venter Ache to the Ötztaler Ache Coordinates: 46 ° 56 ′ 19 ″  N , 11 ° 1 ′ 34 ″  E 46 ° 56 ′ 19 ″  N , 11 ° 1 ′ 34 ″  E
Mouth height	1452  m above sea level A.
Height difference	968 m
Bottom slope	59 ‰
length	16.5 km
Catchment area	131.5 km²
Discharge at the Obergurgl A Eo gauge : 72.5 km² Location: 9.14 km above the mouth	NNQ (02/15/1990) MNQ 1966–2009 MQ 1966–2009 Mq 1966–2009 MHQ 1966–2009 HHQ (09/20/1999)	50 l / s 180 l / s 3.57 m³ / s 49.2 l / (s km²) 35.9 m³ / s 109 m³ / s
Right tributaries	Rotmoosache , Gaisbergbach , Königsbach, Timmelsbach
Communities	Soelden
Residents in the catchment area	about 550
Confluence of the Gurgler Ache (middle) with the Venter Ache (from right) near Zwieselstein

The Gurgler Ache is one of the source rivers of the Ötztaler Ache in Tyrol .

course

The Gurgler Ache rises from the Gurgler Ferner at around 2420  m above sea level. A. and then runs in a north-easterly to north-westerly direction through the Gurgler Valley , past Obergurgl and Untergurgl, and merges with the Venter Ache to form the Ötztaler Ache at Zwieselstein . In parts, especially above Obergurgl and before the exit into the Ötztal, where it overcomes an approximately 150 m high valley step, the Ache has cut deep into the valley floor. The Gurgler Ache receives the inflow from the Langtaler Ferner , the Rotmoosache from the Wasserfall- and Rotmoosferner , the Gaisbergbach from the Gaisbergferner , the Verwallbach from the Ferwallferner, the Königsbach and shortly before Zwieselstein the Timmelsbach from the Bankerferner, all of which flow into the right. The Gurgler Ache runs largely in the Ötztal Alps , below the confluence of the Timmelsbach it forms the border to the Stubai Alps bordering to the east .

Catchment area and water supply

The catchment area of the Gurgler Ache is 131.5 km², of which around 24 km² (18%) are glaciated. The highest point in the catchment area is the Schalfkogel at 3537  m above sea level. A.

The Gurgler Ache has a glacial discharge regime with a large amplitude, which is significantly influenced by the glaciers. The mean discharge at the Obergurgl gauge (glacier share in the catchment area around 32%) is 3.57 m³ / s, which corresponds to a very high discharge rate of 49.2 l / (s · km²). In the winter months of February and March, the monthly mean runoff is around 0.2 m³ / s. Only in late spring does the runoff increase significantly and reach its peak in July with a monthly mean of 11.7 m³ / s, more than fifty times that of the winter months. In autumn the water flow drops again quickly.

environment

The course of the Gurgler Ache is largely natural, only in the settlement area the banks are heavily built-up. The water quality class is I to II.

use

The Gurgler Ache is a popular body of water for whitewater paddlers, the level of difficulty is WW IV-V. The TIWAG plans, the ache for the expansion of Gepatschspeicher to dam and drain the water.

Web links

Commons : Gurgler Ache  - collection of images, videos and audio files

• Water level of the Gurgler Ache at the Obergurgl gauge (Hydrographic Service Tyrol)

Individual evidence

1. ↑ ^{a b} TIRIS - Tyrolean regional planning and information system
2. ↑ ^{a b} Wolfgang Gattermayr: The hydrographic regime of the Ötztaler Ache. In: Eva-Maria Koch, Brigitta Verschbamer (Ed.): Climate, Weather, Glaciers in Transition. Alpine Research Center Obergurgl, Volume 3, Innsbruck University Press, Innsbruck 2013, ISBN 978-3-902811-89-9 , pp. 121–155. ( PDF; 3.7 MB )
3. ↑ ^{a b} Federal Ministry for Agriculture, Forestry, Environment and Water Management (Ed.): Hydrographisches Jahrbuch von Österreich 2009. 117th Volume. Vienna 2011, p. OG 94, PDF (12.1 MB) on bmlrt.gv.at (yearbook 2009)
4. ↑ Michael Kuhn, Jakob Abermann, Marc Olefs, Andrea Fischer, Astrid Lambrecht: Glaciers in Climate Change: Current Monitoring Programs and Research on the Effects on Area Runoff in the Ötztal. In: Bulletin of the Hydrographic Service in Austria, No. 86 (2009), pp. 31–47 ( PDF; 6.1 MB ( Memento of the original from November 12, 2013 in the Internet Archive ) Info: The archive link was automatically inserted and still not checked. Please check the original and archive link according to the instructions and then remove this note. ) 
5. ↑ 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. ) 
6. ↑ Bernie Mauracher, Olaf Obsommer: Ötztal Kayak Guide ( memento of the original from October 23, 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 notice. (PDF; 3.5 MB) 
7. ↑ Project area: Expansion of the Kaunertal power plant ( memento from November 12, 2013 in the Internet Archive ) on the TIWAG website , accessed on May 7, 2013.