Serein
| Serein | ||
 The Serein in Noyers |
||
| Data | ||
| Water code | FR : F32-0400 | |
| location | France , Bourgogne-Franche-Comte region | |
| River system | His | |
| Drain over | Yonne → Seine → English Channel | |
| source | in the municipality of Beurey-Bauguay 47 ° 13 '10 " N , 4 ° 26' 9" O |
|
| Source height | approx. 455 m | |
| muzzle | in the municipality of Bonnard in the Yonne Coordinates: 47 ° 55 ′ 20 ″ N , 3 ° 31 ′ 30 ″ E 47 ° 55 ′ 20 ″ N , 3 ° 31 ′ 30 ″ E |
|
| Mouth height | approx. 80 m | |
| Height difference | approx. 375 m | |
| Bottom slope | approx. 2 ‰ | |
| length | 188 km | |
| Catchment area | 3855 km² | |
| Drainage at the Chablis gauge |
MQ |
7.74 m³ / s |
| Left tributaries | Argentalet | |
 The Serein at Noyers |
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The Serein is a river in France that runs in the Bourgogne-Franche-Comté region . It rises in the municipality of Beurey-Bauguay , on the Saulieu plateau , part of the northern Morvan , generally drains in a north-westerly direction and after 188 kilometers flows into the Yonne as a right tributary in the municipality of Bonnard . On its way, the Serein crosses the departments of Côte-d'Or and Yonne , runs a short distance through the Morvan Regional Nature Park and flows through the Chablis wine-growing region for almost 15 kilometers .
etymology
In his work Mémoires historiques sur la ville de Seignelay from 1833, the author Henry Waast-Barthélemy still cites the river with the spelling Serain .
Places on the river
- Précy-sous-Thil
- Toutry
- Guillon
- L'Isle-sur-Serein
- Massangis
- Noyers
- chablis
- Maligny
- Pontigny
- Ligny-le-Châtel
- Bonnard
Hydrology
The Serein is a constant flow. The flow of the river has been measured in Chablis, about 30 km from the mouth, since 1954. The average flow rate at this measuring station is 7.74 m³ / s. At Dissangis (upstream from Noyers) the value for a catchment area of 643 km² was 4.53 m³ / s.
The flow rate of the Serein is subject to considerable seasonal fluctuations. The highest values occur from autumn to spring and are between 12.4 and 17.5 m³ / s. The peak is reached in February. The values then decrease continuously and reach their lowest value in August with 1.14 m³ / s. Short-term fluctuations can be much more extreme.
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The three-day minimum flow rate can drop to 0.120 m³ / s, that is, the flow rate averaged over three consecutive days does not fall below 120 l / s.
Floods can be severe. For two- and five-year floods, the calculated average is 67 m³ / s and 100 m³ / s, respectively. Floods with a ten-year likelihood of recurrence reach a discharge rate of 120 m³ / s and for floods that statistically recur over the course of twenty years the value is 140 m³ / s. The hydrological office calculated the flow rate of a flood, which recurs every 50 years on average, with 170 m³ / s.
The highest flow rate measured during the observation period was 146 m³ / s and occurred on April 28, 1983; the next day, the highest throughput in the daily average was achieved with 114 m³ / s. The values correspond to a twenty-year recurrence probability and are therefore not extraordinarily high.
The discharge coefficient of the Serein is extremely low at 219 mm per year. The mean value in France is approx. 300 mm and in the entire catchment area of the Yonne this value is still 274 mm.
The Serein has almost no tributaries, as it flows over long distances between the Yonne and the Armançon .
literature
- Francine Bonardot, article in the magazine Pays de Bourgogne n ° 188, July 2000, pages 28 to 34
Web links
Individual evidence
- ↑ Source geoportail.fr (1: 32,000)
- ↑ estuary geoportail.fr (1: 16,000)
- ↑ a b c The information on the length of the river is based on the information about the Serein at SANDRE (French), accessed on November 6, 2011, rounded to full kilometers.
- ↑ a b Banque Hydro - Station H2342020 - The Serein at Chablis (option: Synthèse)