Abstract: No abstract available.

Abstract: A previously derived theoretical expression, supported by experimental observations, for the rate of sintering between two ice spheres is applied to the case of adhesion between ice particles down to temperatures of ?40C. ...

Abstract: Previous theoretical studies of the formation of sulfate in the SO2-NH3-liquid H2O system have not considered in a rigorous manner the chemical equilibrium equations, and have failed to provide a satisfactory explanation ...

Abstract: Measurements have been made of the electric charge acquired by an ice sphere as the result of whirling it through various types of natural cloud and snowfall. The sphere received an appreciable charge only if ice were ...

Abstract: Simultaneous measurements have been made of the concentrations of cloud condensation nuclei, sodium-containing particles, Aitken nuclei, and the magnitude of the light scattering coefficient of the air, for a period of two ...

Abstract: The sources of the electrical charges acquired by ice spheres rotated through natural cloud or precipitation particles are considered. In general, the steady charge that a sphere receives in such experiments derives from ...

Abstract: The fragmentation of freezing water droplets in natural clouds has been postulated by several workers, and this phenomenon has been observed in numerous laboratory investigations. However, the profound effect that environmental ...

Abstract: The fragmentation of water droplets during freezing has not been previously established under conditions which resemble those in natural clouds. In laboratory experiments designed to investigate this phenomenon it is ...

Abstract: A cloud condensation nuclei counter has been developed in which the concentration of water droplets which form on cloud condensation nuclei in a large thermal diffusion chamber is determined electronically by measuring the ...

Abstract: A further examination of the Climax I and II randomized cloud-seeding experiments has revealed the following. 1) Cloud seeding had no effect on precipitation in Climax I after the control stations had been chosen halfway ...