Glâne (river)

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Glâne
Glâne in Villars-sur-Glâne

Glâne in Villars-sur-Glâne

Data
Water code CH : 233
location Canton of Friborg ; Switzerland
River system Rhine
Drain over Saane  → Aare  → Rhine  → North Sea
source between the forest heights of La Râpe in the west and La Tossaire in the east (Riau d'Enfer)
46 ° 37 ′ 8 ″  N , 6 ° 53 ′ 4 ″  E
Source height 844  m above sea level M.
muzzle below Villars-sur-Glâne in the Saane Coordinates: 46 ° 47 ′ 8 ″  N , 7 ° 7 ′ 47 ″  E ; CH1903:  576 403  /  181 646 46 ° 47 '8 "  N , 7 ° 7' 47"  O
Mouth height 560  m above sea level M.
Height difference 284 m
Bottom slope 7.5 ‰
length 38 km
Catchment area 193 km²
Discharge  at the mouth of the
A Eo : 193 km² 		MQ
Mq
 		4.21 m³ / s
21.8 l / (s km²)
Glâne (river) (Switzerland)
source
source
muzzle
muzzle
Source and mouth of the Glâne

The Glâne , partly also written Glane in German, Friborg patois La Yanna ? / I , a 37 km long left tributary is Saane (French: Sarine), in the Canton of Friborg of Switzerland . The area of ​​the river catchment area is around 193 km². The river name goes back to the Celtic word glana (pure). Audio file / audio sample

geography

course

The headwaters of the Glâne are located in the Molasse hills of the southwestern Freiburg Central Plateau , east of the upper reaches of the Broye , in the municipality of Le Flon north of the village of Bouloz . It rises in a basin at 844  m above sea level. M. between the forest heights of La Râpe in the west and La Tossaire in the east and initially bears the name Rio d'Enfer .

For the first two kilometers, the stream flows to the northwest, before changing its direction of flow to the northeast and using the terrain structures in the Molasse high plateau, which were marked out by the Ice Age Rhone glacier and always running from southwest to northeast. From Siviriez , the Glâne runs for 13 km in a wide open high valley, the valley floor of which is an average of 700  m above sea level. M. lies. On this section, the water has a height difference of just 50 meters. The high valley, which is up to two kilometers wide, used to form extensive moorlands in various places , which were meliorated at the end of the 19th century or the beginning of the 20th century . The course of the river has therefore been canalized and straightened over large stretches. The high valley of the Glâne runs parallel to the middle reaches of the Broye, about six kilometers further to the north-west, whose valley floor is 200 meters lower.

Below Villarimboud , the Glâne flows in an easterly direction, where it has a predominantly natural or near-natural course with meanders and swampy floodplains. The two most important tributaries, namely the Neirigue and the Glèbe , flow into the valley near Autigny .

At Autigny, the Glâne changes its direction of flow again to the northeast. It digs itself deeper and deeper into the molasse layers of the area and forms a canyon-like forest valley , partly crossed by sandstone cliffs . After flowing through the Matran basin , the Glâne flows below Villars-sur-Glâne at 560  m above sea level. M. , just a few kilometers south of Freiburg , into the Saane.

Tributaries

  • Riau d'Enter ( right )
  • Au Riau de la Vaux ( left )
  • Ruisseau du Fochaux ( right )
  • Riau de Ste-Anne ( left )
  • Le Glaney ( left )
  • Ruisseau de la Lecheire ( right )
  • Ruisseau de Tsalisson ( right )
  • Ruisseau de Fochau ( left )
  • Ruisseau de Torin ( left )
  • Ruisseau de Vigny ( left )
  • La Neirigue ( right )
  • Ruisseau du Pilon ( right )
  • Ruisseau du Glèbe ( right )
  • Ruisseau de la Crétausa ( left )
  • La Longivue ( right )
  • Ruisseau de Cottens ( left )
  • Ruisseau de Nierlet ( left )
  • Riau qui Pend ( right )
  • Riau de la Bagne ( left )
  • Ruisseau du Bugnon ( left )
  • Ruisseau du Croset ( left )
  • Ruisseau de l'Ile ( left )

Special

The hydroelectric power of the Glâne was previously used in various places to operate mills and sawmills. While the lower reaches between Autigny and Matran are difficult to access, the high valley of the Glâne already formed an important traffic axis from Friborg to Lausanne in the Middle Ages . Since 1862, the predominantly agricultural high valley has also been used by the railway line from Freiburg to Lausanne due to its simple topography. The center of the upper Glâne is the town of Romont , which is located on an isolated hill in the middle of the high valley.

Web links

Commons : Glâne  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b Geoserver of the Swiss Federal Administration ( information )
  2. ↑ Evaluations of the water network. (XLSX) FOEN , December 2013, accessed on August 9, 2017 (listing of Swiss rivers> 30km).
  3. ↑ a b Modeled mean annual discharge. In: Topographical catchment areas of Swiss waters: area outlets. Retrieved May 30, 2019 .
  4. ↑ Considered by some to be the upper reaches of the Glâne