Altenau (Alme)
| Altenau | ||
 The Altenau in Etteln |
||
| Data | ||
| Water code | DE : 27828 | |
| location | North Rhine-Westphalia , Germany | |
| River system | Rhine | |
| Drain over | Alme → Lippe → Rhine → North Sea | |
| source | At Blankenrode 51 ° 32 ′ 15 ″ N , 8 ° 55 ′ 4 ″ E |
|
| Source height | approx. 389 m above sea level NN | |
| muzzle | At Nordborchen in the Alme Coordinates: 51 ° 40 ′ 17 " N , 8 ° 43 ′ 3" E 51 ° 40 ′ 17 " N , 8 ° 43 ′ 3" E |
|
| Mouth height | approx. 126 m above sea level NN | |
| Height difference | approx. 263 m | |
| Bottom slope | approx. 9.2 ‰ | |
| length | 28.7 km | |
| Catchment area | 335.05 km² | |
| Discharge at the Nordborchen A Eo gauge: 330.49 km² Location: 1 km above the mouth |
NNQ (11/21/1976) MNQ 1970/2007 MQ 1970/2007 Mq 1970/2007 MHQ 1970/2007 HHQ (12/19/1988) |
155 l / s 492 l / s 2.14 m³ / s 6.5 l / (s km²) 18.9 m³ / s 38.4 m³ / s |
The Altenau is an approximately 28.7 km long, orographically right tributary of the Alme in North Rhine-Westphalia ( Germany ).
course
The Altenau rises in Westphalia in the southern Egge Mountains , not far from the interface to the Sintfeld and just a little southeast of the Paderborn plateau . Its source is in the south of the Teutoburg Forest / Eggegebirge nature park, southeast of Blankenrode am Humbertsberg ( 423.4 m above sea level ) at about 389 m above sea level. NN .
Initially, the Altenau flows in a north-westerly direction to leave the Egge Mountains - flowing through the Husen-Dalheim flood retention basin and its pre- dam, taking in the Piepenbach coming from the south . Then it runs on the above-mentioned plateau through Husen to Atteln , where the Sauer, coming from the northeast, joins. The water then runs through Henglarn , Etteln and Kirchborchen , where the Ellerbach, coming from the east, joins. Finally, the Altenau flows on the northwestern outskirts of Nordborchen at about 126 m above sea level. NN in the Lippe tributary Alme .
Watershed
The headwaters of the Altenau lie on the Rhine-Weser watershed : This means that the Altenau, which flows to the northwest, drains over the Alme and Lippe into the Rhine , while the streams that arise on the southeast side of the ridge over the Diemel flow into the Weser .
Water flow
Since 1984, when the Obere Lippe water association built the Husen-Dalheim flood retention basin above Husen with partial permanent damming, the Altenau in the Atteln area has been regularly drying up. The continuity of the Altenau is interrupted by the permanent traffic jam. As a result, mud and debris from the upper reaches collect as deposits on the basin floor. Since this debris is now missing below the basin, the river bed has deepened there, exposing swallow holes near Atteln , in which the water seeps into the karst subsoil. Due to a spring above Henglarn, the Altenau always carries water from here to Etteln. But below Etteln the water seeps away again, so that the Altenau regularly dries out for a few kilometers until Gellinghausen.
Tributaries
The tributaries of the Altenau include:
Localities
The localities on the Altenau are:
- Husen - district of Lichtenau
- Atteln - district of Lichtenau
- Henglarn - district of Lichtenau
- Etteln - district of Borchen
- Gellinghausen - district of Borchen
- Kirchborchen - district of Borchen
- Nordborchen - district of Borchen
literature
Views of Altenau - Michael Weber, photographs / Hartmut Lux, texts
Individual evidence
- ↑ a b German basic map 1: 5,000
- ↑ a b c Topographical Information Management, Cologne District Government, Department GEObasis NRW ( information )
- ↑ German Hydrological Yearbook 2007 . (No longer available online.) Formerly in the original ; accessed on July 12, 2020 . ( Page no longer available , search in web archives )
