Rossel (Saar)
BW
The Rossel (French Elle Ross ) is a left-side tributary of the Saar. It rises about two kilometers north of the village Longeville- lès -Saint -Avold in the Lorraine region and ends after 38 kilometers at Völklingen - Wehrden in the Saar. After the medieval Rosselgau Rossel and the places are named large and small Rosseln.
Course
The Rossel arises between the Lorentz Berg and Steiner vertices, east of the village Boucheporn, at an altitude of 322 m. They first flows past in a northeasterly direction on Pfaff hole. In the forest, where there is also the Dripperchenquelle is, she suggests a gentle arc, turns its course after Südostost and then forces its way through a narrow wooded valley. It runs southwest past the settlement Cité Émile Huchet the community Freyming -Merlebach and change there its direction to the south. In Saint- Avold Or catch it is fed on her right side from Muehlegraben. East of the Bohrmühle she turns a sharp turn to the north and crosses under the N 3 It is directed their course to the west and passes, accompanied by the N 3, Saint- Avold. In Moulin Neuf her flowing on her right side, coming from the south of Rossel Bach. In Moulin a Poudre, where it is strengthened by Maimadhbach, it turns north and digs reached Hombourg skin through a narrow valley until it. You pass the village and takes on the eastern outskirts of the Catherine Bach on. At the intersection of N 3 with the A 4 it crosses under the N 3, which she now leaves and turns its course to the west. You will be accompanied for a short distance from the A 4. At the motorway interchange A 4 / A 320 it falls to the coming of the south Dotelbach. Now draws a line to Forêt de Ditschviller and flows south past Cité Belle Roche. On the eastern edge of the village it is fed from the digester stream. You directed their course to the north west and flows past Rosbruck and on Gaensbachwald, where they reached the Franco- German border. Here it flows to the Morsbach. In Marienau ( Forbach ) or emmer hamlet, community Großrosseln, the river changes several times the country side before it forms the border between the two states in the amount of Großrosseln / Petite- Roselle for almost three kilometers. In Cité Quatre Vents before it reaches its final border crossing into Germany nor the sheep creek. You now flows around the eastern edge Großrosseln - Velsen, and then reached Völklingen - Geislautern where it strengthens the Lauterbach. In Völklingen - Wehrden It flows at a height of 196 m in the Saar.
Hydrology
When Geislautern level, just before the mouth of the Rossel in the Saar, the average river discharge ( MQ ) is 2.36 m³ / s; The catchment area covers 203 km ² there.
In Petite Rosselle the average annual runoff volume of Rossel was calculated over a period of 41 years ( 1966-2006 ). The catchment area is approximately 190 km ² at this point.
The discharge amount of Rossel, with the annual average value of 1.89 m³ / s, varies during the year very little. The highest water levels are measured during the winter months of December to March. Your maximum level in the river discharge with 2.53 m³ / s in February. In April, the bed goes back and changes to October only slightly. Its lowest level it reached in September with 1.5 m³ / s, then again to slightly increase from month to month and 2,48 m³ / s to reach its second-highest level after the strong rise in December.
The monthly mean discharge ( MQ ) of the Rossel in m³ / s, measured at the hydrological station Petite Rosselle 1966 data from the values of the year - 2006 calculated
Pollution
The river has long been one of the most polluted waters in Germany. Resulted in him - a complete mystery for decades - the waste water from the mines and coking plants in particular of Forbach and Freyming -Merlebach but also the Karbochemischen factory in Carling -Saint -Avold, all on the French side.