Holzbach (Auelsbach)
| Holzbach | ||
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| Data | ||
| Water code | DE : 2728944 | |
| location |
Lower Rhine Bay
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| River system | Rhine | |
| Drain over | Auelsbach → Agger → Sieg → Rhine → North Sea | |
| source | west of Heide 50 ° 49 ′ 19 ″ N , 7 ° 15 ′ 26 ″ E |
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| Source height | approx. 156 m above sea level NN | |
| muzzle | west of Lohmar in den Auelsbach Coordinates: 50 ° 50 ′ 14 " N , 7 ° 13 ′ 57" E 50 ° 50 ′ 14 " N , 7 ° 13 ′ 57" E |
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| Mouth height | 86 m above sea level NN | |
| Height difference | approx. 70 m | |
| Bottom slope | approx. 23 ‰ | |
| length | 3 km | |
| Catchment area | 2.13 km² | |
| Discharge A Eo : 2.13 km² at the mouth |
MNQ MQ Mq |
1.79 l / s 23.62 l / s 11.1 l / (s km²) |
The Holzbach is a 3 km long orographic left tributary of the Auelsbach in the North Rhine-Westphalian town of Lohmar , Germany .
geography
course
The Holzbach rises about 600 m west of the Lohmarer district Heide at an altitude of 156 m above sea level. NN . The stream flows mainly in north-westerly directions through an uninhabited valley. After a river stretch of 3 km, the stream flows out at 86 m above sea level. NN left in the Auelsbach .
It overcomes a height difference of 70 m, which corresponds to a mean bed gradient of 23.3 ‰.
Catchment area
The catchment area of around 2 km² lies in the Bergische Heideterrassen and is drained to the North Sea via Auelsbach, Agger , Sieg and Rhine .
It borders
- in the east to the Breidenbach , the left source brook of the Auelsbach (main hydrological line)
- in the south to the Rothenbach , an Agger tributary
- and in the west to the Schwarzsiefenbach , also a tributary of the Agger.
The area is forested in the western part and grassland predominates in the eastern part.
Individual evidence
- ^ Ewald Glässer: Geographical land survey: The natural space units on sheet 122/123 Cologne / Aachen. Federal Institute for Regional Studies, Bad Godesberg 1978. → Online map (PDF; 8.7 MB)
- ↑ a b German basic map 1: 5000
- ↑ a b ELWAS specialist information system, Ministry for Climate Protection, Environment, Agriculture, Nature and Consumer Protection North Rhine-Westphalia ( notes )
- ↑ Modeled discharge values according to the specialist information system ELWAS, Ministry for Climate Protection, Environment, Agriculture, Nature and Consumer Protection NRW ( notes )