Ain (river)

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Ain
Overview map

Overview map

Data
Water code FR :  V2-0200
location France , regions of Bourgogne-Franche-Comté and Auvergne-Rhône-Alpes
River system Rhône
Drain over Rhône  → Mediterranean
source on the municipal boundary of Conte and Nozeroy
46 ° 44 ′ 58 ″  N , 6 ° 1 ′ 23 ″  E
Source height approx.  680  m
muzzle in the municipality of Saint-Maurice-de-Gourdans in the Rhône Coordinates: 45 ° 47 '43 "  N , 5 ° 10' 37"  E 45 ° 47 '43 "  N , 5 ° 10' 37"  E
Mouth height approx.  185  m
Height difference approx. 495 m
Bottom slope approx. 2.6 ‰
length 190 km
Catchment area 3765 km²
Discharge at the gauge Chazey-sur-Ain
A Eo : 3630 km² 		MQ
Mq
 		120 m³ / s
33.1 l / (s km²)
Left tributaries see adjacent table
Right tributaries see adjacent table
Reservoirs flowed through Lac de Vouglans , Lac de Coiselet
Small towns Champagnole
The Ain at Pont-du-Navoy

The Ain at Pont-du-Navoy

The Ain is a river in France that runs in the Bourgogne-Franche-Comté and Auvergne-Rhône-Alpes regions and flows into the Rhone . It crosses the departments of Jura and Ain , for which he also acts as a namesake.

geography

Source de l'Ain

Source de l'Ain (when the water level is high)
Source de l'Ain (without pouring)

The Source de l'Ain (Eng. Quelle des Ain ) is a mighty karst spring from the karst rock of the French Jura . The source pot is located in a narrow, wooded valley on the municipal boundary of Conte and Nozeroy , at an altitude of about 680 m. It can pour up to 60,000 l / s , but it can also dry up completely. If, after heavy rain or snowmelt comes to the maximum fill, the observation deck at the source is often completely under water. The large cave portal at the bottom of the Source de l'Ain can only be accessed up to 35 m when the spring is absolutely dry. Depending on the water level, the color of the spring water also changes. After the source has dried up, the first water-bearing tributary of the Ain is the approximately 11 km long serpentine that flows into the valley from the northeast about one kilometer below the Source de l'Ain.

course

The Ain flows essentially in a south-southwest direction, takes on numerous streams and rivers, cutting deep into the Jura. At Syam it is abruptly directed to the northwest and after Champagnole it reaches a high valley about 20 kilometers long in its original direction of flow, through which it runs in mighty meanders . Southwest of Poncin , the Ain leaves its gorge in order to reach the Rhône in hilly terrain , into which it joins as a right tributary after a total of 190 kilometers in the municipality of Saint-Maurice-de-Gourdans (approx. 40 km above Lyon ).

Tributaries

(Order in flow direction)

Surname Length in km Mouth side
Serpentine 11 right
Saine 19th Left
Angillon 27 right
Hérisson 21st Left
Drouvenant 18th Left
Cimante 11 Left
Bienne 69 Left
Oignin 44 Left
Valouse 42 right
Riez 13 Left
Oiselon 14th Left
Suran 74 right
Cozance 12 Left
Albarine 59 Left
Toison 15th right

Places on the river

Hydrology

The Ain reaches a maximum gradient of 12 to 18 per mille on its way into the valley. During its course it is dammed 15 times in reservoirs to generate energy, e.g. B. in Lac de Coiselet and in Lac de Vouglans . In addition to generating electricity, the Lac de Vouglans is also used to curb heavy water events that tend to occur in spring and autumn.

Picture gallery

See also

Web links

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

Individual evidence

  1. ↑ Source geoportail.gouv.fr
  2. ↑ estuary geoportail.gouv.fr
  3. ↑ a b c The information on the length of the river is based on the information about the Ain at SANDRE (French), accessed on January 17, 2012, rounded to the nearest kilometer.
  4. ↑ hydro.eaufrance.fr (station: V2942010 , option: Synthèse )