High resolution radiosonde data from UK stations and also from Gibraltar, St Helena and the Falklands.

The data consist of vertical profiles of pressure, temperature, relative humidity, humidity mixing ratio, sonde position, wind speed and wind direction. Measurements are taken at 2 second intervals and the ascents extend to heights of approximately 20-30 km.

The archive has around 10 stations with data from the 1990's, generally with either 2 or 4 ascents per day from each station until around 2020 where routine observations decrease to 1 a day from 6 main sites with additional ascents as required.

Additionally, data from Aberporth, obtained to support observations at the MST Radar, Aberystwyth, are also available from April 1990 - April 2000 with at least one ascent a day and then as required operationally thereafter.

For details of sites see station record details linked to each dataset within this collection.