Abstract
Electric charge of snow particles with special attention to graupel pellets was measured at several ground stations and also by means of radiosonde for measuring electric charge. Snow crystals without cloud droplets were negatlvely electrified, whereas snow flakes composed of rimed snow crystals were positively electrified.
On the basis of results of the observations of electric charge of snow and experiments in laboratory, processes of electrification of snow crystals and graupel pellets in convective clouds are discussed.
