Possible influence of solar radiation variability on the stratosphere temperature

Using daily temperature data available from radiosonde measurements over Barajas (Madrid), La Coruna, and Palma de Mallorca stations for the time span 1971-1982 and an altitude range 100-30 mb, temperatures at different levels are compared with the 10.7-cm flux in order to check whether radiation variability must be included in lower-stratospheric models. At the latitude studied, stratospheric temperatures are uninfluenced by sudden warming phenomena, avoiding difficulties of masking found in previous studies.