Hünibach (body of water)
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Hünibach Seegartenbach Cholerenbach, Choleregrabe |
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 The Hünibach in the Cholerenschlucht |
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| Data | ||
| Water code | CH : 1468 | |
| location |
Mittelland
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| River system | Rhine | |
| Drain over | Aare → Rhine → North Sea | |
| Headwaters | in the foothills of the Alps, northeast above Lake Thun , in the Goldiwil area 46 ° 45 ′ 33 ″ N , 7 ° 41 ′ 9 ″ E |
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| Source height | 1001.6 m above sea level M. | |
| muzzle | near Hünibach in the Thunersee Coordinates: 46 ° 44 '31 " N , 7 ° 38' 50" E ; CH1903: 615 934 / 176 761 46 ° 44 '31 " N , 7 ° 38' 50" O |
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| Mouth height | 558 m | |
| Height difference | 443.6 m | |
| Bottom slope | 98 ‰ | |
| length | 4.5 km | |
| Catchment area | 5.93 km² | |
| Discharge at the A Eo estuary gauge : 5.93 km²
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MQ Mq |
250 l / s 42.2 l / (s km²) |
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Hünibach in the area of the Cholerenschlucht - from the mouth towards the headwaters |
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The Hünibach is about four and a half kilometers long, northeast and right tributary of Lake Thun in Switzerland .
Names
The Hünibach has different names. At Swisstopo it is referred to as Seegartenbach in the database and as Hünibach on the topographic map . The geoportal of the canton of Bern names it Cholerenbach up to the Choleren Gorge , in the Cholerengrabe Gorge and then Hünibach .
geography
course
The Hünibach arises at an altitude of 1001.6 m above sea level. M. south of the Trummerli farm belonging to the Goldiwil district of Thun .
It initially flows along the municipal boundary between Thun in the north and Heiligenschwendi in the south in a westerly direction into a 50 m wide strip of coniferous forest surrounded by meadows, and then after a good 100 m on its right side it is fed by the Trummeligrabe . To the southwest of the Insele property belonging to the municipality of Thun, the trench of the same name flows towards it on its right-hand side and immediately afterwards the Holländergräbli on the same side . The Hünibach now runs through the small Sagi forest and is strengthened there on the left by the Hagsbüelgräbl coming from the east-southeast .
Directly to the east of the Grabemüli (formerly Obere Grabenmühle ), which belongs to Heiligenschwendi , the Moosbächli joins and immediately behind the mill the Schützemösligräbli , both from the left. Almost 300 m down the stream, on its right-hand side, it includes the Chummgrabe approaching from the north . The Hünibach now runs west-southwest through the Choleregrabe , which was formerly called Goldiwilgraben , in which it first flows into the Unders Eichgutgräbli from the right, then the small Hünibach from the left and finally from the right again the Hubelgrabe .
In the rainforest he is fed from the left by the Schoubhusgräbli coming from the east-southeast . He then passes the Coleresagi mill and immediately afterwards first the Schwelligrabe from the other side and then shortly afterwards, this time again from the left, one after the other, the Chlyne Eiholzgrabe and the Eiholzgrabe .
He now turns to the south-southwest and reaches the Cholerenschlucht , which is wooded on both sides . There it is reinforced first from the left by the Hundschüpfegräbli , then from the right one behind the other by the Fystergräbli and the Scheidweggrabe and then again from the left by the Chlyns Hundschüpfegräbli .
The Hünibach now reaches the outskirts of Hünibach , where it receives its last tributary, the Chelligrabe, from the left. It then passes the village, crosses under State Road 221 , which runs along the right bank of the lake, and finally flows between the Seegarten districts on the right and Eichbühl on the left at an altitude of 558 m above sea level. M. from the right into Lake Thun .
Its approximately 4.5 km long run ends approximately 444 meters below its source, so it has an average bed gradient of 98 ‰.
Catchment area
The 5.93 km² catchment area of the Hünibach is drained via the Aare and the Rhine to the North Sea.
It borders
- in the northeast to that of the Schwändigrabe which drains over the Zulg into the Aare
- in the east to that of the Wüeribach , which flows into the Zulg
- to the south of the Riderbach , the Louelibach and the Eichholzgräbli , all of which flow into Lake Thun
- in the northwest to that of the Wartgraben and that of the Göttibach , both of which flow into the Aare
- and in the north to that of the two Zugl tributaries Bösbach and Stägibach .
The catchment area consists of 37.7% wooded area , 52.5% agricultural area , 9.3% settlement area , 0.3% water area and 0.2% unproductive areas.
Area distribution
The mean height of the catchment area is 960 m above sea level. M. , the minimum height is 557 m above sea level. M. and the maximum height at 1281 m above sea level. M.
Tributaries
- Trummeligrabe ( right ), 0.1 km
- Inselgrabe ( right ), 0.5 km
- Holländergräbli ( right ), 0.2 km
- Hagsbüelgräbl ( left ), 0.4 km
- Moosbächli ( left ), 1.3 km, 1.73 km²
- Schützemösligräbli ( left ), 0.6 km
- Chummgrabe ( right ), 0.4 miles
- Unders Eichgutgräbli ( right ), 0.1 km
- Hünibach [!] ( Left ), 0.2 km
- Hubelgrabe ( right ), 0.3 km (with Trüelmattgräbli 0.5 km)
- Schoubhusgräbli ( left ), 0.2 miles
- Schwelligrabe ( right ), 0.6 km
- Chlyne Eiholzgrabe ( left ), 0.2 miles
- Eiholzgrabe ( left ), 0.8 km
- Hundschüpfegräbli ( left ), 0.3 km
- Fystergräbli ( right ), 0.4 miles
- Scheidweggrabe ( right ), 0.2 km
- Chlyns Hundschüpfegräbli ( left ), 0.3 km
- Chelligrabe ( left ), 0.7 km
geology
The catchment area on the upper reaches of the floodplain is characterized by conglomerate and sand rocks , which belong to the tectonic unit of the subalpine molasses of the Swiss plateau and were deposited in the Chattium , the upper of the two chronostratigraphic levels of the Oligocene . In the higher elevations undifferentiated moraines ( till ) from the Holocene prevail. At the central reaches in the area of the Cholerenschlucht the conglomerate and sandstone-containing sediments expand widely and in the estuary area, stream debris from the Holocene dominates.
Cholerenschlucht
The Choleren is a ravine close to the town of Thun and is one of the protected areas (689) . The Hünibach flows through it. It also forms the municipal boundary between Thun and Heiligenschwendi.
The gorge is accessible by a well-developed hiking trail. This mostly leads along the watercourse and offers views of the gorge and several waterfalls. In the event of a thaw , an inspection should not be carried out due to the risk of ice and falling rocks.
Hydrology
At the confluence of the Hünibach into the Rhine, its modeled mean flow rate (MQ) is 250 l / s. Its discharge regime type is nivo-pluvial préalpin and its discharge variability is 20.
The modeled monthly mean discharge (MQ) of the Hünibach in l / s
Web links
Individual evidence
- ↑ Names according to the Geoportal Kanton Bern
- ↑ a b c Geoserver of the Swiss Federal Administration ( information )
- ↑ Modeled mean annual discharge. In: Topographical catchment areas of Swiss waters: area outlets. Retrieved November 3, 2015 .
- ↑ a b Topographical catchment areas of Swiss waters: Hünibach
- ↑ Layer GeoCover at Swisstopo.
- ↑ "Hidden behind the mean values" - the variability of the discharge regime , p. 119
- ↑ The discharge variability describes the extent of the fluctuations in the mean discharge of individual years around the long-term mean discharge value.