Abstract: Evidence supporting the hypothesis that the first particles of ice in small cumulonimbus clouds way form as a result of a mechanism involving the violent breakup of drops is presented. The hypothesis is supported by ...

Abstract: tract

Abstract: The aerosols, produced by several devices, used to provide silver iodide for cloud-seeding purposes have been studied by micro-chemical techniques which permitted the characterization of individual smoke particles. The ...

Abstract: Parametric equations describing the growth of ice particles in the range 10?11?1 g are presented. Three subranges (10?11?5 ? 10?8, 5 ? 10?8?10?4, and 10?4?1 g) are used. The parametric equations were developed with the aid ...

Abstract: An attempt has been made quantitatively to assess the prospects for modifying warm fogs by seeding them with condensation nuclei. This has been done by calculating the time-dependent changes in the sizes and concentrations ...

Abstract: Data on the composition of stratocumulus and nimbostratus clouds having temperatures warmer than ?9C reveal, in some instances, high concentrations of ice particles (to approximately 400 liter?1 of cloud). On the basis of ...

Abstract: The technique and results of the application of a chemical test, explicit for silver iodide, sensitive to a mass of 3 ? 10?17 g, to laboratory-nucleated ice crystals and atmospheric ice crystals from cloud-seeding experiments ...

Abstract: Data gathered during consecutive traverses through summer clouds in southern Missouri have been interpreted to indicate that: (1) the glaciating characteristics of commonly occurring small cumulonimbus clouds in this region ...

Abstract: A numerical experiment in the simulation of cloud microphysical processes is described. The purpose of the experiment was to test the hypothesis that drop-freezing/splintering is an important mechanism in cumulus cloud ...

Abstract: The 1973 Rand version of the Mintz-Arakawa model of the general circulation of the atmosphere was used to study the consequences of high concentrations of hygroscopic aerosols in a limited geographic region. The experiment ...