Mean runoff and flow regime types for the river network of Switzerland

For the entire Swiss river network, present-day natural runoff values (monthly and annual means, reference period 1981-2000) have been modelled and the flow regime types determined. The resultant dataset is called “MQ-GWN-CH”.

The dataset « MQ-GWN-CH » contains information on the runoff regime for the river reaches of the Swiss river network: on the one hand the natural monthly and annual runoff means (reference period for the modelling: 1981-2000), on the other hand the flow regime type. The spatial reference for these indications are the river reaches.

Illustration of the mean runoff
Illustration of the mean runoff

« MQ-GWN-CH » constitutes a dataset for the entire medium-scale river network of Switzerland. No runoff values are given for rivers with watershed areas < 3km2 (limit of application of the underlying dataset) and ≥ 500km2 (given that in general for such cases a hydrometric station is available within a useful distance). The latter starts from the assumption that measured data are as a matter of principle to be preferred to modeled estimates.

The dataset is provided as a text file that can be linked to the digital river network of Switzerland at the scale 1:25‘000 from swisstopo (gwn25-2007).

Ordering the dataset

The dataset is available free of charge and can be directly downloaded with the below ZIP-file.

In addition to the dataset, the ZIP-file contains also a documentation (in German and French only) with a description of the dataset and how it has been established with indications on scope and limits of application. The conditions/terms of use as well as cartographic illustrations of the results are also included in the ZIP-file.

The geodata with geometry (From: VECTOR25, hydrographic network) require a licence agreement with swisstopo and can be ordered free of charge from the following site (german and french only):

Further information

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Last modification 22.08.2018

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