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10-Mar-2010
Data (page under construction)

Benützung der Daten: Der Benutzer oder die Benutzerin dieser Daten anerkennt, dass deren Gebrauch ausschliesslich auf eigene Gefahr erfolgt und, dass weder die Eawag noch Urs Uehlinger eine Haftung für direkte, indirekte oder Folgeschäden jedwelcher Art übernimmt. Die hier publizierten Informationen dürfen nicht ohne Quellenangabe (Urs Uehlinger, Department of Aquatic Ecology, Eawag, CH-8600 Duebenorf, Switzerland) frei verwendet werden. 
River Glatt
Roseg River

River Necker

The River Necker, a sixth order river in the eastern prealpine region of Switzerland, drains a catchment of 126 km2 of which about one third is forested. The mean annual discharge at the river mouth is 4.6 m3/s. The flow regime is flashy, i.e. bed moving spates may occur at any time of the year.

Necker near the mouth at base flow
Necker near the mouth during high flow

 

Investigations (respective publications can be downloaded as pdf file)

- Periphyton (biomass) 1989 -1990 (Uehlinger 1991)
- Periphyton (biomass) and stream metabolism 1992 - 1994 (Uehlinger et al. 1996, Uehlinger & Naegeli 1998)

Data of the 1989/90 investigation

Periphyton biomass (Text file)
Daily water temperatur (Text file)
Daily Photosynthetically active radiation (Text file)
Discharge data (gauging station Necker - Mogelsberg, Aachsäge) can be obtained from the (Swiss) Federal Office for the Environment, Berne: http://www.hydrodaten.admin.ch/e/index.htm
View of the study site in October 1989 (Necker Aachsäge)
Study site in Google Earth

Data of the 1992/94 investigation

Periphyton biomass (Text file)
Daily metabolism rates (Excel file)
Daily water temperatur (Excel file)
Daily Photosynthetically active radiation (daily sum) (Excel file)(
Hydrograph Necker Luetisburg* 1992-1994 (JPEG-Figure). Discharge data (gauging station Necker - Mogelsberg, Aachsäge) can be obtained from the (Swiss) Federal Office for the Environment, Berne: http://www.hydrodaten.admin.ch/e/index.htm
Views of the reach (Necker near Lütisburg)
Study reach in Google Earth

*Discharge data of the station Mogelsberg/Aachsäge were multiplied by a factor of 1.4 to correct for the larger catchment area of the study site.