Aabach (Seetal)
aus Wikipedia, der freien Enzyklopädie
| Aabach Hallwiler Aa | ||
|
Aabach südlich von Lenzburg | ||
| Daten | ||
| Gewässerkennzahl | CH: 680 | |
| Lage | Mittelland
| |
| Flusssystem | Rhein | |
| Abfluss über | Aare → Rhein → Nordsee | |
| Quelle | Baldeggersee 47° 13′ 0″ N, 8° 15′ 3″ O | |
| Quellhöhe | 463 m ü. M.[1] | |
| Mündung | in Wildegg in die AareKoordinaten: 47° 25′ 4″ N, 8° 9′ 43″ O; CH1903: 654587 / 252125 47° 25′ 4″ N, 8° 9′ 43″ O | |
| Mündungshöhe | 348 m ü. M.[1] | |
| Höhenunterschied | 115 m | |
| Sohlgefälle | ca. 2,9 ‰ | |
| Länge | ca. 39 km[1] (inkl. Quellbach Ron) | |
| Einzugsgebiet | 302,7 km²[2] | |
| Abfluss[2] AEo: 302,7 km² an der Mündung |
MQ Mq |
5,21 m³/s 17,2 l/(s km²) |
| Rechte Nebenflüsse | Bünz | |
| Durchflossene Seen | Hallwilersee | |
| Kleinstädte | Lenzburg | |
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Der Aabach ist ein Bach in den Schweizer Kantonen Luzern und Aargau. Er gehört zum Einzugsgebiet der Aare und fliesst von Süden nach Norden durch das Seetal.
Geographie
Verlauf
Er entspringt im Baldeggersee, der neben der Ron von mehreren kurzen Bächen gespeist wird. Bei Mosen mündet der Bach in den Hallwilersee. Zwischen Boniswil und Seengen tritt er wieder aus dem See aus. Rund 700 Meter vom nördlichen Ende des Sees entfernt liegt auf zwei künstlichen Inseln das Schloss Hallwyl, eines der bedeutendsten Wasserschlösser der Schweiz. Am südlichen Stadtrand von Lenzburg zweigt ein unterirdischer Entlastungsstollen ab, der unterhalb von Niederlenz wieder auf den Bach trifft; durch diesen wird bei Hochwasser die überschüssige Wassermenge geleitet. Der Aabach mündet in Wildegg in die Aare, kurz nachdem die Bünz knapp zweihundert Meter davor in den Aabach mündet.
Einzugsgebiet
Das 302,7 km² grosse Einzugsgebiet des Aabachs liegt im Seetal und wird durch ihn über die Aare und den Rhein zur Nordsee entwässert.
Es besteht zu 22,6 % aus bestockter Fläche, zu 56,9 % aus Landwirtschaftsfläche, zu 14,8 % aus Siedlungsfläche und zu 5,7 % aus unproduktiven Flächen.
Die Flächenverteilung <timeline> ImageSize = width:500 height:110 PlotArea = width:90% height:66% bottom:20% left:5% DateFormat = x.y Period = from:0 till:100 Legend = columns:2 columnwidth:205 left:30 top:95% TimeAxis = orientation:horizontal ScaleMajor = unit:year increment:10 start:0 ScaleMinor = unit:year increment:5 start:0
- The formatting blanks in the Colors-section are in fact figure spaces (U+2007)
Colors =
id:Wald value:teal legend:22,6_%_Bestockte_Fläche id:Acker value:yelloworange legend:56,9_%_Landwirtschaftsflächen id:Orte value:red legend:14,8_%_Siedlungsfläche id:Unproduktiv value:tan2 legend: 5,7_%_Unproduktive_Flächen
PlotData =
from:00.0 till:22.6 color:Wald from:22.6 till:79.5 color:Acker from:79.5 till:94.3 color:Orte from:94.3 till:100 color:Unproduktiv
</timeline>
Die mittlere Höhe des Einzugsgebietes beträgt 543,3 m ü. M., die minimale Höhe liegt bei 253 m ü. M. und die maximale Höhe bei 876 m ü. M.[3]
Zuflüsse und Seen
Vom Ursprung zur Mündung (Auswahl):
- Baldeggersee, Ursprung
- Altgassbach, links in Ermensee
- Hallwilersee, darin:
- Altwiserbach, rechts
- Vorderbach, rechts bei Aesch
- Hinderbach, rechts bei Aesch
- Teufibach, rechts
- Eggelerbach, links bei Beinwil am See
- Wilibach, links
- Dorfbach, rechts in Meisterschwanden
- Stadtbach, rechts in Lenzburg
- Bünz, rechts in Wildegg
beim Schloss Hallwyl
kanalisierter Lauf
renaturierter Lauf
oberhalb der Sigismühle
Siehe auch
- Industriekultur am Aabach
- Aabach (Küttigen), gleichnamiger linker Zufluss der Aare weiter aufwärts
Weblinks
Commons: Aabach – Sammlung von Bildern, Videos und Audiodateien
Einzelnachweise
- ↑ a b c Geoserver der Schweizer Bundesverwaltung (Hinweise)
- ↑ a b Topographische Einzugsgebiete der Schweizer Gewässer: Teileinzugsgebiete 2 km². Abgerufen am 8. Juni 2019.
- ↑ Topographische Einzugsgebiete Schweizer Gewässer: Aabach, Bundesamt für Umwelt BAFU
