Abstract: During the years 1977?82 a randomized single area hail suppression experiment was conducted in Central Switzerland, testing the Soviet concept of beneficial competition. For 37 seed and 50 no-seed days, rainfall data, both ...

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Abstract: The preconvective environment on thunderstorm days in Switzerland north of the Alps has been investigated during a 5-yr period (1985?89). Thermodynamic and kinematic parameters calculated from the radiosounding in Payerne ...

Abstract: In the central region of Switzerland, lying between the Jura Mountains to the north and the Alps to the south, severe hailstorms are a common summertime phenomenon. Eight years of data on these hailstorms show that they ...

Abstract: The main results of a randomized hail suppression experiment, Grossversuch IV, are presented in this paper. Grossversuch IV tested the ?Soviet? hail prevention method during five years (1977?81). The field experiment took ...