Abstract: Recent developments in the area of thunderstorm electrification processes are reviewed. These processes have two main divisions; (a) convective, in which particles charged by ion capture are moved by convection currents ...

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Abstract: Laboratory studies of rime growth on a moving rod under conditions of secondary ice crystal production show that the rod acquires a positive charge, equivalent to charge associated with each ejected particle of 5 ? 10?4C. ...

Abstract: During the replication of ice crystals by conventional methods the crystals both grow and flocculate; this can lead to erroneous determination of their size distribution and to unreliable analysis of the in-cloud interactions ...

Abstract: Oversampling of optical array probes (OAPs) is described as a novel technique to increase the quality of small-particle data available in cloud microphysics. The slice rate of a 10-?m-resolution grayscale OAP is increased ...

Abstract: A system is described for measurement and analysis of precipitation particle charge from an aircraft in the highly variable and harsh environment of a convective cloud. A compromise, practical instrument design enables ...