STudies in Atmospheric Radiative Transfer
and Water VApour Effects

Water vapour information from the Radiosondes

Sonde measurements are the only direct way of sampling atmospheric water vapour and integrated water vapour (IWV) can be calculated from the profile of pressure, temperature and relative humidity. Since the amount of water vapour in the atmosphere decreases roughly exponentially with height, total column water vapour is very dependent on the starting altitude. This is illustrated in the above figure where IWV has been calculated from the Payerne radiosonde data from various starting altitudes.

Monthly mean IWV from Payerne radiosonde

Monthly mean IWV from Payerne sonde for 1994-2001

Data download

> Download integrated water vapour from Payerne and surrounding radiosonde stations

> Download radiosonde profiles (IAP only)

Contactlast update: March 2020