Schäferbach (Uhlenbach)
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Schäferbach Schäfergraben, Graben Schäfergrund |
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 typical view of the catchment area of the Schäferbach |
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| Data | ||
| location | Saxony-Anhalt , Germany | |
| River system | Elbe | |
| Drain over | Uhlenbach → Selke → Bode → Saale → Elbe → North Sea | |
| River basin district | Elbe | |
| source | near Heimberg, 51 ° 39 ′ 8 ″ N , 11 ° 1 ′ 30 ″ E |
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| muzzle | in Uhlenbach Coordinates: 51 ° 39 '13 " N , 11 ° 3' 35" E 51 ° 39 '13 " N , 11 ° 3' 35" E
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The Schäferbach , also Schäfergraben or Graben Schäfergrund , is a brook in the Lower Harz in Saxony-Anhalt that flows through the Schäfergrund and flows from the right into the Uhlenbach , which drains to the Selke .
Origin and course
The Schäferbach rises in the high water area of the Harz near the Heimberg in a spring trough, as it is typical for the Lower Harz. It lies roughly in the middle of the triangle formed by the Mittelberg , the Fleischberg and the Fitzgeroder Heimberg .
In the upper reaches, in the area of the Bleckerwiesen, the brook has a left and a right side tributary. At about half the length of the course, the Bachaue reaches its greatest width at approx. 200 m. Here, for example, in an open trapezoidal channel, a pressure sensor measures the water level and a Doppler ultrasonic sensor measures the speed during flooding. To Fliess km 1.755 is a 60 ° - overflow weir (Thompson-weir).
There is an underground dam in the lower reaches. The 2180 m long stream flows out at an altitude of 393 m above sea level. NN from the right into the middle course of the Uhlenbach, shortly after this has taken up the Great Uhlenbach in the reservoir at the Forsthaus Uhlenstein .
Hydrological situation
In 1972 a total of 21 drains were laid on the upper reaches of the Schäferbach . Already the field block of the spring trough is drained into the Schäferbach. Since 1974 mining activities (development of a fluorspar deposit) have led to a local lowering of the groundwater level. The natural flow of water with increasing soil moisture ended with it. Since then there have been dry spells and episodic sudden flash floods , which severely impaired the chemical and biological water quality.
In the course of the safe holding at the end of the mining activity, the groundwater level rose again and reached a new stable level in 1999, which is different from the original state. The Schäferbach occasionally dries out during periods of low precipitation, whereas meadows 20 m away are regularly flooded during floods.
literature
- Application of the ANIMO model to simulate the dissolved phosphorus in surface runoff on the field scale and the availability of phosphorus in the topsoil on the catchment area scale - Dissertation, Irina Kistner ( online version )
- Calculation of snowmelt and winter erosion in the small catchment area "Schäfertal" with the model Erosion 3D / Winter Version - Student thesis, Heiko Fritz ( online version ; PDF; 3.6 MB)
- Infiltration in partially frozen soils - Diploma thesis, Heiko Fritz ( online version ; PDF; 5.6 MB)
- Recording and modeling of snowmelt erosion using the example of the Schäfertal (Germany) and Lubazhinkha (Russia) small catchment areas - Habilitation thesis, Gregor Ollesch ( online ; PDF; 7.9 MB)
- Investigation of the inland runoff in a low mountain range using the example of the Schäfertal ( online ( Memento from 23 May 2006 in the Internet Archive ))
- Schäfergraben - Page no longer available , search in web archives: Schäfertal, Harz Mountains, Germany
- TERENO NEWSLETTER No. 1 | August 2010 ( online ( Memento from December 10, 2010 in the Internet Archive ))
- IDW: Flood events scientific competence in river basin management
- meeting point campus, article: Spatial statistics in practice ( page no longer available , search in web archives: online )
