Hydrological Atlas of Switzerland – Plate 7.3
The temperature in a river or a lake depends strongly on the air temperature and the solar radiation. Several overlapping patterns of variation can be observed. The seasonal pattern of temperatures in rivers and in the upper layers of water in lakes shows a clear sinusoidal shape. Using the sine curve model it is possible to calculate the mean temperature to be expected on any one day of the year.
In digital form:
Plate of the Atlas as pdf (26289kb)
Explanatory text (taken without changes from the Hydrological Atlas)
Table «Temperaturparameter der Fliessgewässer und Seen»
Top (of page)