Mossy

Mossy
The Mossig near Soultz-les-Bains
Data
Water body code	FR: A28-0200
Location	France Grand Est region Département Bas-Rhin
River system	Rhine
Drainage via	Bruche → Ill → Rhine → North Sea
Source	near Schneematt, in the commune of Wangenbourg-Engenthal 48° 36′ 24″ N, 7° 16′ 19″ E48.6066666666677.2719444444444678
Source Height	678 m
Mouth	near Avolsheim into the Bruche48.5655555555567.4994444444444163Coordinates 48° 33′ 56″ N, 7° 29′ 58″ O 48° 33′ 56″ N, 7° 29′ 58″ O48.5655555555567.4994444444444163
Mouth height	163 m
Height difference	515 m
Bottom slope	16 ‰
Length	33 km[1]
Catchment area	169.9 km²[2]
Drainage[2][ ] at the mouth	MQ	581 l/s
Avolsheim confluence of the Mossig with the Bruche

The Mossig is a tributary of the Bruche in the Bas-Rhin department of France.

Geography

Course

The Mossig rises at an altitude of 620 metres near a settlement called Schneematt, in the commune of Wangenbourg-Engenthal and is 33 km long. On its way, it is flanked by hills and passes the villages of Engenthal-le-Bas, Romanswiller, Wasselonne, Marlenheim, Kirchheim, Odratzheim, Scharrachbergheim-Irmstett, Soultz-les-Bains and Avolsheim. At Avolsheim it flows into the Bruche.

Inflows

• Loechelbach(right), 5.4 km
• Ziegbach(left), 1.3 km
• Sommereau(left), 9.8 km
• Sathbach(right), 8.8 km
• Heiligenbach(left), 5.2 km
• Flossgraben(left), 2.4 km
• Bruegel(left), 4.8 km
• Kohbach(right), 6.0 km
• Kehlbach(right), 3.6 km

Hydrology

At the mouth of the Mossig into the Bruche, the mean discharge (MQ) is 0.58 m³/s; the catchment area here covers 169.9 km².

At the Soultz-les-Bains gauge, the average annual discharge of the Mossig was calculated over a period of 41 years (1970-2010).^[3] At this point, the catchment area of 163 km² corresponds to about 96 % of the river’s full catchment area.

The discharge fluctuates quite strongly in the course of the year. The highest water levels are measured in the months of January – March. The discharge reaches its maximum level of 2.13 m³/s in February. From April on, the discharge decreases and reaches its lowest level in September with 0.66 m³/s, only to increase again from month to month.

Individual references

1. ↑ Mossig at SANDRE (French)
2. ↑ ^{a b} see weblink: Débits caractéristiques de la Mossig
3. ↑ Banque Hydro – A2842010 La Mossig à Soultz-les-Bains (menu option: Synthèse)

Web links

Commons: Mossig– Collection of pictures, videos and audio files

• Débits caractéristiques de la Mossig (French; PDF; 17 kB)