Weisse Lütschine (Lütschine)

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Weisse Lütschine
upper course: Tschingel-Lychina
Middle course: Schmadri-Lychina
The Weisse Lütschine in Lauterbrunnen Valley

The Weisse Lütschine in Lauterbrunnen Valley

Data
Water code CH : 502
location Bernese Alps

Switzerland

River system Rhine
Drain over Lütschine  → Aare  → Rhine  → North Sea
source Tschingelfirn
46 ° 30 ′ 4 ″  N , 7 ° 51 ′ 17 ″  E
Source height approx.  2340  m above sea level M.
confluence at Zweilütschinen with the Schwarzen Lütschine to the Lütschine coordinates: 46 ° 38 ′ 2 ″  N , 7 ° 53 ′ 54 ″  E ; CH1903:  635 202  /  164 834 46 ° 38 '2 "  N , 7 ° 53' 54"  O
Mouth height 646  m above sea level M.
Height difference approx. 1694 m
Bottom slope approx. 87 ‰
length approx. 19.4 km
Catchment area 164.98 km²
Discharge at the Zweilütschinen
A Eo gauge : 165 km²
Location: 300 m above the mouth
NNQ (1964)
MNQ 1933–2016
MQ 1933–2016
Mq 1933–2016
MHQ 1933–2016
HHQ (2011)
500 l / s
6.45 m³ / s
7.92 m³ / s
48 l / (s km²)
10 m³ / s
112 m³ / s
Discharge
A Eo : 164.98 km²
at the mouth
MQ
Mq
8.35 m³ / s
50.6 l / (s km²)

The Weisse Lütschine is about 19.5 kilometers long, left and southern source river of the Lütschine . It drains the Lauterbrunnen valley in the Bernese Oberland and joins the Black Lütschine at Zweilütschinen .

Surname

The name Lütschine comes from the Celtic name leucos, leuca , which means “white” or “bright, shiny”. This means that the name “Weisse Lütschine”, which, confusingly, is borne by two rivers in the Lütschine system, is a pleonasm in literal history .

geography

course

Tschingel-Lychina

The most important source stream of the Weisse Lütschine is the Tschingel-Lychina , which rises as an outflow of the Tschingelfirns at an altitude of about 2340  m above sea level. M. between Gspaltenhorn and Tschingelhorn .

At an altitude of about 1500  m above sea level. M., the Tschingel-Lychina flows through the Talbachfall and shortly afterwards unites at Schiirboden with the Chrummbach , which approaches from the right. From here on it is called Schmadri-Litschena .

Schmadri-Lychina

Shortly afterwards the Schwandbach and the Rote Bach run towards her on her right side . At an altitude of about 1100  m above sea level. M. takes it with the Stuefebach the next larger tributary again from the right.

Shortly thereafter, the valley floor is settled. After Sichellauenen it is from the right of the Staldenbach at an altitude of about 980  m above sea level. M. strengthened. Less than a kilometer later, the Schmadri-Litschena near Rütti joins the Sefinen Lütschine , which approaches from the left. From here, at the latest, the river is now called the Weisse Lütschine .

White Lütschine

At Matte the Weisse Lütschine rush from the right to the Mattenbach and the Wyderweidbach and a little later, coming from Mürren, the Mürrenbach and then the Aegertenbach . Shortly after Trümmelbach (at about 820  m above sea level ) it is fed on the right by the Trümmelbach , which is well known due to the Trümmelbach Falls .

From here the valley becomes relatively flat. Before reaching the village of Lauterbrunnen, the Spissbach and Staubbach (known for the Staubbach Falls ) flow from the right and the Hasenbach from the left . Within the village at 800  m above sea level. M. strengthen them from the left by the Louwibach and the Gryfenbach and from the right by the Mättlibach . Then the valley becomes a little steeper again and the river flows below Wengen until it takes in the Sousbach from the left at Sandweidli ( 710  m above sea level ) .

In the rockfall below Isenfluh, the Weisse Lütschine flows through its last section to Zweilütschinen, where it finally joins the Black Lütschine coming from the right to form the Lütschine.

Catchment area

The catchment area of ​​the river has a size of about 165 km², with the highest point in the catchment area, the Jungfrau , a height of 4158  m above sea level. M. achieved. Other well-known mountains in the catchment area are Eiger , Mönch , Gletscherhorn , Äbeni Flue and the Mittaghorn . On the other side of the valley is the Schilthorn in the catchment area.

The mean height of the catchment area is 2145  m above sea level. M. , the minimum height is 647  m above sea level. M.

It consists of 17.1% wooded area , 22.9% agricultural area , 1.3% settlement area , 19.9% ​​glacier / firn, 0.7% water area and 38.1% from unproductive areas.

Area distribution

Hydrology

At the confluence of the Weisse Lütschine and the Black Lütschine, their modeled mean flow rate (MQ) is 8.35 m³ / s. Her discharge regime type is a-glacio-nival and her discharge variability is 13.

The modeled monthly mean discharge (MQ) of the Weisse Lütschine in m³ / s

Fish stocks

The brown trout is the most common, the lake trout in Lake Brienz, for which the Lütschine serves as the ascent water, is statistically substituted under the heading of brown trout. The rainbow trout is less common .

Web links

Commons : Weisse Lütschine  - Collection of images, videos and audio files

Individual evidence

  1. a b c Geoserver of the Swiss Federal Administration ( information )
  2. a b c d Topographical catchment areas of Swiss waters: sub-catchment areas 2 km². Retrieved January 19, 2020 .
  3. Zweilütschinen measuring station 1933–2016 (PDF) Federal Office for the Environment FOEN
  4. "Hidden behind the mean values" - the variability of the discharge regime , p. 7
  5. The discharge variability describes the extent of the fluctuations in the mean discharge of individual years around the long-term mean discharge value.
  6. Catch yields from 1989 onwards