140 years of weather
The longest uninterrupted mountain climate series in the world, kept at 3,106 m by two people at a time.
The normals warm
Annual mean, °CThree WMO reference normals, each thirty years of summit mean temperature. The line rises by half a degree across the record's last half-century.
Who reads it
Since 1886The first page
Temperature, pressure, humidity, precipitation, wind, sunshine, atmospheric electricity and cosmic rays, plus the glacier's mass balance.
Air chemistry
The renewal turned the station into a clean-air baseline: free atmosphere, above the boundary layer and its dust.
GAW
Accredited a WMO Global Atmosphere Watch station in May, the standard that lets the series join the world's baselines.
ACTRIS
Aerosol optical depth and the particle record joined Europe's research infrastructure in April.