Abstract: A detailed examination was made of the variables affecting the operation of the National Center for Atmospheric Research (NCAR) ice nucleus counter. The design criteria for proper flow control to achieve consistent cloud ...

Abstract: The Second International Workshop on Condensation and Ice Nuclei, held at Ft. Collins, Colo., in 1970, provided approximately 10,000 measurements by ice nucleus counters of natural and artificial aerosols, with the counters ...

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Abstract: Laboratory work showed that organic compounds have considerable promise as cloud-seeding agents. The following substances gave complete nucleation: phloroglucinol at ?2C, trichlorobenzene at ?12C, D(+)-Raffinose at ?14C, ...

Abstract: The concentrations of both deuterium and water-insoluble particles in snow collected during snowstorms in the mountains of Colorado were found to be proportional to the size of snowflakes. Large snowflakes were associated ...

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Abstract: A continuous, automatic, and portable instrument was developed for detecting and counting ice nuclei in the field and laboratory. The nuclei are activated in a cloud chamber and the resulting ice crystals are counted by ...

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Abstract: Aluminized Mylar bags are used by many researchers to store aerosol samples for later analysis. Our results show that the rate of deposition of unipolar unit-charged aerosols to the walls can be extremely high and is ...