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Information about snow depth

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The snow depth maps are published at around 7 am CET from 1 November until 30 June. They show manual and automatic measured values of the SLF and MeteoSwiss collected at around 7 am.  

The grid in the background is based on calculations from the operational snow hydrological service of the SLF (OSHD), using input data from the operational weather forecast models of MeteoSwiss. The data are presented with a resolution of approx. 1x1 km. The calculations take into account various processes such as the settlement of the snowpack by its own weight, melting in the event of significant warming or when rain falls into the snowpack. Also taken into account is when the snow falls on snow-free and still warm ground and therefore melts again.

There are four variants of this product: 

Snow depth: The snow depth is displayed for all altitudes.  

Snow depth at 1500 m: In the OSHD grid in the background, only the model values from the height band between 1250 m and 1750 m are taken into account. These values are displayed at all grid points of the elevation model above 1250 m.
Only measured values of the height band described above are displayed.  

Snow depth at 2000 m: In the OSHD grid in the background, only the model values from the height band between 1750 m and 2250 m are taken into account. These values are displayed at all grid points of the elevation model above 1750 m.
Only measured values of the height band described above are displayed.

Snow depth at 2500 m: In the OSHD grid in the background, only the model values from the height band between 2250 m and 2750 m are taken into account. These values are displayed at all grid points of the elevation model above 2250 m.
Only measured values of the height band described above are displayed.

The measured values are not verified. Some displayed values may be inaccurate.  

A time chart for the measured and model values can be accessed from the measured data map.