A2 - Automatic precipitation stations - Measured values

As a meteorological parameter, precipitation exhibits a very high spatial variability and therefore requires a denser measurement network. In supplement to 1. Automatic weather stations MeteoSwiss thus operates about 100 additional stations for the automatic measurement of precipitation.

[!NOTE] For climate analyses, use the corresponding homogeneous time series data instead.

2.1. Data granularity, update frequency, format and volume

If you require hourly, daily, monthly or annual values, we strongly recommend that you download the corresponding aggregated data granularity t, h, d, m, y and update frequency hourly (now), daily (recent) or yearly (historical).

Time series can begin before the introduction of automatic measurements in the year 1981. Before 1981 at least three values per day were manually measured. They are stored as individual 10-minute values (synoptic observations).

Data format is CSV with an estimated volume of ≤5.3 MB per file.

See example data files for station AIR (set in lower case) for all granularities and update frequencies mentioned: ogd-smn-precip_air_(data granularity)_(update frequency).csv.

2.2. Parameter metadata

For example parameter metadata files see 1.2. Parameter metadata above.

The productive version will provide a single parameter metadata file for all granularities; file name: ogd-smn-precip_meta_parameters.csv.

2.3. Station metadata

See example station metadata file.

The productive version will provide a station metadata file with the file name: ogd-smn-precip_meta_stations.csv.

2.4. Data visualisation

See e.g. MeteoSwiss' SwissMetNet network map.