The Serein Noyers
The Serein at Noyers
The Serein is a river in France, which runs in the Burgundy region. It rises in the municipality of Beurey - Bauguay, on the plateau of Saulieu, part of the northern Morvan, drained generally in a northwesterly direction and flows after 188 kilometers in the municipality of Bonnard as a right tributary of the Yonne. On his way to the Serein crosses the departments of Cote -d'Or and Yonne, runs for a short distance through the Morvan Natural Regional Park and flows for a distance of nearly 15 kilometers, the Chablis wine region.
In his work, Mémoires historiques sur la ville de Seignelay from 1833, the author Henry Waast -Barthélemy quotes the river even to the spelling Serain.
Places on the river
- Précy -sous- Thil
- L' Isle- sur -Serein
- Ligny -le- Châtel
The Serein is a constant flow. The outflow of the river is about 30 km from the mouth measured since 1954 in Chablis, removed. The average discharge at this station is 7.74 m³ / s In Dissangis ( upriver from Noyers located ) was the value for a catchment area of 643 km ² or 4.53 m³ / s
The discharge rate of the Serein is subject to significant seasonal fluctuations. The highest values occur from autumn to spring, and are 12.4 to 17.5 m³ / s The maximum value is reached in February. The values are then continuously back and reach their lowest value in August of 1.14 m³ / s Short-term fluctuations can be much more extreme.
The three-day minimum discharge rate may fall to 0,120 m³ / s, that is, over three consecutive days averaged discharge rate does not fall below 120 l / s
Flood can vary strongly. For two -and five- year flood, the determined average is 67 m³ / s and 100 m³ / s Flood with a ten year return period to reach a runoff rate of 120 m³ / s and at random repeating in the course of twenty years flood, the value is 140 m³ / s The hydrological Office calculated the runoff of a flood that recurs every 50 years on average, with 170 m³ / s
The highest measured in the period drain quantity is 146 m³ / s and occurred on 28 April 1983; the next day was achieved on a daily average of 114 m³ / s and the highest throughput. The values correspond to a twenty- year return period and will not be exceptionally high.
The runoff coefficient of the Serein is extremely low with 219 mm annually. The mean France is about 300 mm and the entire catchment area of the Yonne, this value is still at 274 mm.
The Serein has almost no tributaries as it flows over long distances between the Yonne and the Armançon.