Doller (river)

The Doller Lauw

The Doller is a 46.5 km long left tributary of the river Ill in the French region of Alsace.

Geography

Course

The Doller rises to about 900 m northwest of the Baerenkopf in the area of the Ballon d'Alsace (French Ballon d' Alsace) in the Vosges.

Already at this point it is called Doller and takes the car Stallbach on to their left side. After she has turned into a wide arc through more than 180 °, it goes in the Vallée de la Doller in Canton Masevaux east- southeast. In this valley communities are Sewen, Dolleren, Oberbruck, Kirchberg, Wegscheid, Niederbruck, Sickert, Masevaux and Sentheim. Outside the mountain system of the Vosges changes the Doller their main direction slightly and flows towards east. In Mulhouse it opens at an altitude of about 235 m in the Ill.

Inflows

  • La Kaltenbrunnen (left)
  • Le Firtig (left)
  • Laces trench ( right)
  • Car parking Bach ( left)
  • Seebach at Sewen (left), 2.5 km
  • Grave Erbach (right), 3.4 km
  • Seebach at Oberbruck (left)
  • Soultzbach (left)
  • Heimbach (left), 2.2 km
  • Lachtelweiherbaechle (right), 4.9 km
  • La Rhone (right), 2.6 km
  • Sickert Bach ( left), 3.1 km
  • Odilenbaechle (right), 3.8 km
  • Will Erbach (left), 4.7 km
  • Houppachbaechle (left)
  • Grambaechle (right), 2.8 km
  • Le Talungrunzbach (right) 2.7 km
  • Silbach (left)
  • Bourbach (left)
  • Hahn Bach ( right), 6.0 km
  • Michel Bach ( left)
  • Steinbaechel (right)

Hydrology

At the mouth of the River Ill, the average river discharge ( MQ ) is 4:26 m³ / s; the catchment area of ​​215.4 km ² here.

In Reiningue the average annual runoff volume of Doller was calculated over a period of 43 years ( 1967-2009 ). . The catchment area corresponding to at this point about 180 square kilometers, so about 83.7 % of the whole catchment area of the river.

The discharge rate of the Doller, with the annual average value of 4:22 m³ / s, varies quite strongly during the year. The highest water levels are measured during the winter months of December to February. Your maximum level in the river discharge with 7.98 m³ / s in February. From March to the bed goes back month after month and reached its lowest level in August of 1.09 m³ / s to then to rise again from month to month.

The monthly mean discharge ( MQ ) the Doller in m³ / s, measured at the hydrological station Reiningue 1967 data from the values ​​of the year - 2009 calculated

244522
de