Pfaffneren

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Pfaffners
Pfaffners
The Pfaffneren near the hamlet of Gländ in the Rothrist community

The Pfaffneren near the hamlet of Gländ in the Rothrist community

Data
Water code CH : 1184
location Mittelland

Switzerland

River system Rhine
Drain over Aare  → Rhine  → North Sea
source southeast of the village of Roggliswil
47 ° 12 ′ 8 ″  N , 7 ° 54 ′ 10 ″  E
Source height 633  m above sea level M.
muzzle at Rothrist in the Aare Coordinates: 47 ° 18 '46 "  N , 7 ° 53' 27"  E ; CH1903:  634 183  /  240 298 47 ° 18 '46 "  N , 7 ° 53' 27"  O
Mouth height 392  m above sea level M.
Height difference 241 m
Bottom slope 16 ‰
length 15.2 km
Catchment area 47.4 km²
Discharge at the gauge at Matte
A Eo : 38.8 km²
Location: 3.3 km above the mouth 		NNQ (2003)
MNQ 1980–2014
MQ 1980–2014
Mq 1980–2014
 MHQ 1980–2014
HHQ (1995) 		160 l / s
437 l / s
715 l / s
18.4 l / (s km²)
 1.03 m³ / s
47.9 m³ / s
Discharge
A Eo : 47.4 km²
at the mouth 		MQ
Mq
 		870 l / s
18.4 l / (s km²)

The Pfaffneren ( Swiss German : Pfaffnere ), also Pfaffnern , is a 15 km long stream in the cantons of Lucerne and Aargau . It is a southern and right tributary of the Aare .

geography

course

The Pfaffneren rises southeast of the village of Roggliswil at an altitude of 633  m above sea level. M. .

The Pfaffneren flows northwards through the communities Pfaffnau , Murgenthal , Vordemwald and finally flows into Rothrist at an altitude of 392  m above sea level. M. from the right into the Aare.

Its 15.2 km long run ends about 241 meters below its source, so it has an average bed gradient of 16 ‰.

Catchment area

The 47.4 km² catchment area of ​​the Pfaffneren is located on the northern edge of the Swiss plateau and is drained via the Aare and the Rhine to the North Sea.

It consists of 46.4% wooded area , 44.3% agricultural area , 9.2% settlement area and 0.2% water area.

The mean height of the catchment area is 503  m above sea level. M. , the minimum height is 392  m above sea level. M. and the maximum height at 732  m above sea level. M.

Tributaries

On the way, numerous streams flow from the surrounding forests into the Pfaffneren.

  • Burgbach ( right )
  • Muttibach ( right )
  • Schwarzbächli ( left )
  • Chapfbächli ( left )
  • Kressgraben ( left )
  • Westerbach ( left )
  • Wilibach ( right )
  • Chätzigenbächli ( left )
  • Krummbächli ( left )
  • Geissbach ( right )
  • Steinbächli ( left )

Hydrology

At the confluence of the Pfaffneren in the Aare, its modeled mean flow rate (MQ) is 870 l / s. Her discharge regime type is pluvial inférieur and her discharge variability is 25.

The modeled monthly mean discharge (MQ) of the Pfaffneren in l / s

Individual evidence

  1. ↑ a b c Geoserver of the Swiss Federal Administration ( information )
  2. ↑ a b c d Topographical catchment areas of Swiss waters: sub-catchment areas 2 km². Retrieved July 22, 2018 .
  3. ^ Hydrometry of the Canton of Aargau
  4. ↑ "Hidden behind the mean values" - the variability of the discharge regime , p. 119
  5. ↑ The discharge variability describes the extent of the fluctuations in the mean discharge of individual years around the long-term mean discharge value.